CN213177112U - Flame-retardant anti-compression PE pipe - Google Patents
Flame-retardant anti-compression PE pipe Download PDFInfo
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- CN213177112U CN213177112U CN202021840154.9U CN202021840154U CN213177112U CN 213177112 U CN213177112 U CN 213177112U CN 202021840154 U CN202021840154 U CN 202021840154U CN 213177112 U CN213177112 U CN 213177112U
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- 238000007906 compression Methods 0.000 title claims abstract description 67
- 239000003063 flame retardant Substances 0.000 title claims abstract description 44
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims description 22
- 230000006835 compression Effects 0.000 claims abstract description 65
- 239000004744 fabric Substances 0.000 claims abstract description 33
- 229920000742 Cotton Polymers 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 72
- 239000011241 protective layer Substances 0.000 claims description 44
- 238000009413 insulation Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- 239000002826 coolant Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012967 coordination catalyst Substances 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
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Abstract
The utility model relates to a PE manages technical field, and disclose a resistance to compression PE pipe with fire-retardant, including PE pipe body, PE pipe body inner wall fixed mounting has the strengthening rib, PE pipe body outer wall fixed mounting has thermal-insulated cotton layer, thermal-insulated cotton layer outer wall fixed mounting has the fire retardant, fire retardant outer wall fixed mounting has the fin, fin outer wall fixed mounting has the support column, support column inner wall fixed connection has the annular line, the other end fixed mounting of support column has the resistance to compression articulamentum, fin outer wall fixed mounting has the coolant liquid, coolant liquid and resistance to compression articulamentum inner wall fixed connection, resistance to compression articulamentum outer wall fixed mounting has the fire prevention cloth, fire prevention cloth outer wall fixed mounting has the protective; the whole PE pipe has very excellent compression resistance and impact resistance through the cooperation of the structures under the action of the reinforcing ribs.
Description
Technical Field
The utility model relates to a PE manages technical field, specifically is a resistance to compression PE pipe with it is fire-retardant.
Background
The invention of Ziegler metal complex coordination catalyst by German chemists in the 60 th century made low-pressure polyethylene, and since then, the man entered the era of organic synthetic polymers. Polyethylene is PE, and heretofore has become a very basic plastic and is widely used. Polyethylene is not rusted, has excellent performances in all aspects, and is an ideal pipe material for replacing common iron water supply pipes, fuel gas conveying and the like, so that the polyethylene is widely applied to the fields of water supply and drainage manufacturing, fuel gas conveying and the like.
Because the PE pipe is often used for conveying some flammable and explosive media, for example, the PE pipe is used as a fuel gas conveying pipeline, fuel gas conveying has the characteristics of long conveying distance, high conveying pressure, large conveyed medium amount and the like, so that in the actual operation work of the PE pipe, if the PE pipe is broken due to accidents such as corrosion, impact, fire, fatigue and the like, the conveying medium in the PE pipe is leaked, and various accidents are caused, and therefore the flame-retardant pressure-resistant PE pipe is needed.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a have fire-retardant resistance to compression PE pipe possesses fire-retardant, advantages such as resistance to compression, have solved not fire-retardant, the problem of resistance to compression.
(II) technical scheme
For the purpose of realizing above-mentioned fire-retardant resistance to compression, the utility model provides a following technical scheme: the utility model provides a resistance to compression PE pipe with it is fire-retardant, includes PE pipe body, PE pipe body inner wall fixed mounting has the strengthening rib, PE pipe body outer wall fixed mounting has thermal-insulated cotton layer, thermal-insulated cotton layer outer wall fixed mounting has the fire retardant, fire retardant outer wall fixed mounting has the fin, fin outer wall fixed mounting has the support column, support column inner wall fixedly connected with annular line, the one end fixed mounting that the fin was kept away from to the support column has the resistance to compression articulamentum, fin outer wall fixed mounting has the coolant liquid, coolant liquid and resistance to compression articulamentum inner wall fixed connection, resistance to compression articulamentum outer wall fixed mounting has the fire prevention cloth, fire prevention cloth outer wall fixed mounting has the protective layer, protective.
Preferably, thirteen reinforcing ribs are arranged on the inner wall of the PE pipe body in an array mode, the diameter of each reinforcing rib is equal to half of the thickness of the PE pipe body, and the reinforcing ribs are used for increasing the strength of the PE pipe body.
Preferably, the inner wall of the support column is provided with a through hole, the annular line penetrates through the through hole and is fixedly connected with the support column, the annular line is specifically a stainless steel pressure-resisting line, and the annular line can evenly distribute the force borne by the single support column to each support column.
Preferably, the compression-resistant connecting layer comprises an outer connecting layer, a first elastic block, a rubber pad, two compression springs, a second elastic block and an inner connecting layer, the top end of the compression-resistant connecting layer is the outer connecting layer, the outer wall of the outer connecting layer is fixedly connected with the fireproof cloth, the inner wall of the outer connecting layer is fixedly connected with a circular connecting column, the bottom end of the circular connecting column is fixedly connected with the first elastic block, the bottom end of the first elastic block is fixedly connected with the compression springs, the bottom end of the compression springs is fixedly connected with the second elastic block, the top end of the second elastic block is fixedly connected with the rubber pad, the number of the rubber pads is two, the two elastic blocks are symmetrically arranged relative to the compression springs, the bottom end of the second elastic block is fixedly connected with the inner connecting layer, the inner wall of the inner connecting layer is provided with a groove, the inner wall of the groove is fixedly connected with the second elastic block, the groove is slidably connected with, thereby increasing the flame retardant and pressure resistance of the whole pipe body.
Preferably, the fireproof cloth is specifically basalt fiber, the thickness of the fireproof cloth is set to be one third of that of the protective layer, the fireproof cloth is actually the flame-retardant cloth, the burning point of the fireproof cloth is as high as one thousand hundred degrees, and flame can be effectively prevented from spreading into the compression-resistant connecting layer.
Preferably, the protective layer includes inner protective layer and outer protective layer, inner protective layer inner wall and fire prevention cloth fixed connection, inner protective layer outer wall and thread line fixed connection, the thread line specifically is stainless steel resistance to compression line, and the spiral is arranged at inner protective layer outer wall, inner protective layer outer wall and outer protective layer inner wall fixed connection, the last brush of thread line has one deck fire-retardant medium for the thread line both can be fire-retardant to a certain extent, also can increase whole body compressive capacity.
(III) advantageous effects
Compared with the prior art, the utility model provides a resistance to compression PE pipe with it is fire-retardant possesses following beneficial effect:
1. this PE pipe with fire-retardant resistance to compression, PE pipe body inner wall and strengthening rib fixed connection, fin outer wall and support column fixed connection, the through-hole has been seted up to the support column inner wall, the annular line passes through-hole and support column fixed connection, the annular line plays the effect that increases structural compression stability, the support column plays connection and resistance to compression effect, the support column links together fin and resistance to compression articulamentum, the protective layer includes inner protective layer and outer protective layer, be provided with the thread line at inner protective layer and outer protective layer junction, cooperation through these structures makes whole PE pipe have very superior resistance to compression and shock resistance.
2. This PE pipe with fire-retardant resistance to compression, PE pipe body outer wall and thermal-insulated cotton layer fixed connection, thermal-insulated cotton layer can completely cut off the high temperature under the outside high temperature condition, protection PE pipe body, thermal-insulated cotton layer outer wall and fire retardant fixed connection, the fire retardant can be put out a fire, this is the last bridge of protection PE pipe body, it has the coolant liquid to pour into in fin and the junction connection department of compression resistance, can absorb the heat and reduce temperature protection PE pipe body, can also put out a fire if necessary, it has the same absorbed heat of water to pour into in junction and the junction department of connection of outer, reduce the temperature, thereby put out a fire and protect the body, thereby it has one deck fire-retardant medium to brush at the thread outer wall, this kind of medium can put out a.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the ring-shaped wire structure of the metal wire structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure of the compression-resistant connecting layer of the present invention;
fig. 4 is an enlarged schematic view of the thread structure of the present invention.
In the figure: 1. a PE pipe body; 2. reinforcing ribs; 3. a heat insulating cotton layer; 4. a flame retardant; 5. a heat sink; 6. a support pillar; 7. a loop line; 8. cooling liquid; 9. a compression-resistant connecting layer; 10. fireproof cloth; 11. a protective layer; 12. a thread; 90. an outer tie layer; 91. a first bullet block; 92. a rubber pad; 93. a compression spring; 94. a second bullet block; 95. an inner connection layer; 110. an inner protective layer; 111. and an outer protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a flame-retardant pressure-resistant PE pipe comprises a PE pipe body 1, wherein reinforcing ribs 2 are fixedly mounted on the inner wall of the PE pipe body 1, the reinforcing ribs 2 are thirteen in number and are arrayed on the inner wall of the PE pipe body 1, the diameter of each reinforcing rib 2 is equal to half the thickness of the PE pipe body 1, the reinforcing ribs 2 are used for increasing the strength of the PE pipe body 1, a heat insulation cotton layer 3 is fixedly mounted on the outer wall of the PE pipe body 1, a flame retardant 4 is fixedly mounted on the outer wall of the heat insulation cotton layer 3, the flame retardant 4 can extinguish a fire, which is the last bridge for protecting the PE pipe body 1, a heat sink 5 is fixedly mounted on the outer wall of the flame retardant 4, the heat sink 5 can dissipate heat, a support column 6 is fixedly mounted on the outer wall of the support column 6, a circular line 7 is fixedly connected to the inner wall of the, the annular line 7 can evenly distribute the force borne by a single supporting column 6 to each supporting column 6, one end, far away from the radiating fins 5, of each supporting column 6 is fixedly provided with a compression-resistant connecting layer 9, the outer wall of each radiating fin 5 is fixedly provided with cooling liquid 8, the cooling liquid 8 is fixedly connected with the inner wall of each compression-resistant connecting layer 9, the outer wall of each compression-resistant connecting layer 9 is fixedly provided with fireproof cloth 10, each fireproof cloth 10 is specifically basalt fiber, the thickness of each fireproof cloth 10 is one third of that of a protective layer 11, each fireproof cloth 10 is actually a flame-retardant cloth, the burning point of each fireproof cloth 10 is as high as one thousand hundred degrees, flames can be effectively prevented from being spread into the compression-resistant connecting layers 9, each compression-resistant connecting layer 9 comprises an outer connecting layer 90, a first elastic block 91, a rubber pad 92, a compression spring 93, a second elastic block 94 and an inner connecting layer 95, the top end of each compression-resistant connecting layer 9, the inner wall of the outer connecting layer 90 is fixedly connected with a circular connecting column, the bottom end of the circular connecting column is fixedly connected with a first elastic block 91, the bottom end of the first elastic block 91 is fixedly connected with a compression spring 93, the bottom end of the compression spring 93 is fixedly connected with a second elastic block 94, the top end of the second elastic block 94 is fixedly installed with a rubber pad 92, two rubber pads 92 are arranged and are symmetrically arranged relative to the compression spring 93, the bottom end of the second elastic block 94 is fixedly connected with an inner connecting layer 95, the inner wall of the inner connecting layer 95 is provided with a groove, the inner wall of the groove is fixedly connected with the second elastic block 94, the groove is in sliding connection with the first elastic block 91, water is injected into the inner wall of the outer connecting layer 90 and the outer wall of the inner connecting layer 95, so that the fireproof and pressure-resistant capabilities of the fireproof cloth are improved, the outer wall of the fireproof cloth 10 is fixedly provided with a protective layer 11, the inner, the outer wall of the inner protection layer 110 is fixedly connected with the thread 12, the thread 12 is specifically a stainless steel pressure-resistant line, and the outer wall of the inner protection layer 110 is spirally arranged, the outer wall of the inner protection layer 110 is fixedly connected with the inner wall of the outer protection layer 111, and the thread 12 is brushed with a layer of flame-retardant medium, so that the thread 12 can be flame-retardant to a certain extent, and the pressure-resistant capacity of the whole pipe body can also be increased.
The working principle is that the inner wall of a PE pipe body 1 is fixedly connected with a reinforcing rib 2, the reinforcing rib 2 can enhance the physical strength and toughness of the PE pipe body 1, the outer wall of the PE pipe body 1 is fixedly connected with a heat insulation cotton layer 3, the heat insulation cotton layer 3 can isolate high temperature from the PE pipe body 1 when the outer part of the pipe body meets high temperature, so as to protect the PE pipe body 1, the outer wall of the heat insulation cotton layer 3 is fixedly connected with a flame retardant 4, the outer wall of the flame retardant 4 is fixedly connected with a radiating fin 5, the radiating fin 5 is used for radiating heat, the flame retardant 4 is a last bridge for finally protecting the PE pipe body 1, the outer wall of the radiating fin 5 is fixedly connected with a supporting column 6, the supporting column 6 is used for supporting and connecting a compression-resistant connecting layer 9, the inner wall of the supporting column 6 is provided with a through hole, a ring line 7 passes, the compression-resistant connecting layer 9 comprises an outer connecting layer 90, a first elastic block 91, rubber pads 92, compression springs 93, a second elastic block 94 and an inner connecting layer 95, the outer connecting layer 90 is arranged at the top end of the compression-resistant connecting layer 9, the inner wall of the outer connecting layer 90 is fixedly connected with the first elastic block 91 through a circular connecting column, the bottom end of the first elastic block 91 is fixedly connected with the compression springs 93, the bottom end of the compression springs 93 is fixedly connected with the second elastic block 94, the top end of the second elastic block 94 is fixedly connected with the rubber pads 92, the two rubber pads 92 are symmetrically arranged relative to the compression springs 93, the rubber pads 92 are used for damping and protecting damage caused by collision of the first elastic block 91 and the second elastic block 94, the bottom end of the second elastic block 94 is fixedly connected with the inner connecting layer 95, grooves are formed in the inner wall of the inner connecting layer 95, the inner grooves are fixedly connected with the bottom ends of the second elastic blocks 94, the inner grooves are slidably connected with the first, the compression-resistant connecting layer 9 can disperse force to play a role in shock absorption and compression resistance, water is injected into the joint of the inner wall of the outer connecting layer 90 and the outer wall of the inner connecting layer 95 to absorb heat and extinguish fire, the outer wall of the compression-resistant connecting layer 9 is fixedly connected with the fireproof cloth 10, the fireproof cloth 10 is specifically basalt fiber, the thickness of the fireproof cloth 10 is set to be one third of that of the protective layer 11, the fireproof cloth 10 is actually the fireproof cloth, the fire point of the fireproof cloth 10 reaches one thousand hundred degrees and can effectively prevent flame from spreading into the compression-resistant connecting layer 9, the outer wall of the fireproof cloth 10 is fixedly connected with the protective layer 11, the protective layer 11 comprises an inner protective layer 110 and an outer protective layer 111, the inner wall of the inner protective layer 110 is fixedly connected with the fireproof cloth 10, the outer wall of the inner protective layer 110 is fixedly connected with the thread 12, the thread 12 is specifically a stainless steel compression-resistant line, the shock absorption and compression-, the flame retardant medium and the flame retardant 4 have the same function and play a role in extinguishing fire, and the outer wall of the inner protective layer 110 is fixedly connected with the outer protective layer 111 through the thread 12.
In conclusion, in the flame-retardant and pressure-resistant PE pipe, the inner wall of a PE pipe body 1 is fixedly connected with a reinforcing rib 2, the outer wall of a radiating fin 5 is fixedly connected with a supporting column 6, the inner wall of the supporting column 6 is provided with a through hole, an annular line 7 penetrates through the through hole to be fixedly connected with the supporting column 6, the annular line 7 plays a role in increasing the pressure-resistant stability of the structure, the supporting column 6 plays a role in connection and pressure resistance, the radiating fin 5 is connected with a pressure-resistant connecting layer 9 by the supporting column 6, a protective layer 11 comprises an inner protective layer 110 and an outer protective layer 111, a threaded line 12 is arranged at the joint of the inner protective layer 110 and the outer protective layer 111, the whole PE pipe has very excellent pressure resistance and impact resistance through the matching of the structures, the outer wall of the PE pipe body 1 is fixedly connected with a heat-insulating cotton layer 3, the heat-, fire retardant 4 can put out a fire, this is the last bridge of protection PE pipe body 1, it has coolant liquid 8 to pour into in fin 5 and the 9 junctions of resistance to compression articulamentum, can absorb the heat and reduce temperature protection PE pipe body 1, can also put out a fire if necessary, at articulamentum 95 with outer articulamentum 90 junctions pour into water and absorb the heat equally, reduce the temperature, thereby put out a fire and protect the body, 12 outer wall brushes at the thread have the fire-retardant medium of one deck, this kind of medium can put out a fire with fire retardant 4 is the same, thereby the protection body is not hurt.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a resistance to compression PE pipe with fire-retardant, includes PE pipe body (1), its characterized in that: the PE pipe comprises a PE pipe body (1), reinforcing ribs (2) are fixedly arranged on the inner wall of the PE pipe body (1), a heat insulation cotton layer (3) is fixedly arranged on the outer wall of the PE pipe body (1), a flame retardant (4) is fixedly arranged on the outer wall of the heat insulation cotton layer (3), radiating fins (5) are fixedly arranged on the outer wall of the flame retardant (4), supporting pillars (6) are fixedly arranged on the outer wall of the radiating fins (5), annular wires (7) are fixedly connected to the inner walls of the supporting pillars (6), a compression-resistant connecting layer (9) is fixedly arranged at one end, far away from the radiating fins (5), of each supporting pillar (6), cooling liquid (8) is fixedly arranged on the outer wall of each radiating fin (5), the cooling liquid (8) is fixedly connected with the inner wall of the compression-resistant connecting layer (9), fireproof cloth (, and a thread line (12) is fixedly arranged on the inner wall of the protective layer (11).
2. The PE pipe with flame resistance and pressure resistance as recited in claim 1, wherein: the reinforcing ribs (2) are thirteen in number and are arrayed on the inner wall of the PE pipe body (1), and the diameter of each reinforcing rib (2) is equal to half of the thickness of the PE pipe body (1).
3. The PE pipe with flame resistance and pressure resistance as recited in claim 1, wherein: the inner wall of the support column (6) is provided with a through hole, the annular line (7) penetrates through the through hole to be fixedly connected with the support column (6), and the annular line (7) is specifically a stainless steel pressure-resistant line.
4. The PE pipe with flame resistance and pressure resistance as recited in claim 1, wherein: the compression-resistant connecting layer (9) comprises an outer connecting layer (90), first elastic blocks (91), a rubber pad (92), a compression spring (93), second elastic blocks (94) and an inner connecting layer (95), the top end of the compression-resistant connecting layer (9) is provided with the outer connecting layer (90), the outer wall of the outer connecting layer (90) is fixedly connected with the fireproof cloth (10), the inner wall of the outer connecting layer (90) is fixedly connected with a circular connecting column, the bottom end of the circular connecting column is fixedly connected with the first elastic blocks (91), the bottom end of the first elastic blocks (91) is fixedly connected with the compression spring (93), the bottom end of the compression spring (93) is fixedly connected with the second elastic blocks (94), the top end of the second elastic blocks (94) is fixedly installed with the rubber pad (92), the rubber pads (92) are provided with two, and are symmetrically arranged relative to the compression spring (93), and the bottom end of the second elastic blocks (94) is fixedly connected with the inner connecting layer (95), the inner wall of the inner connecting layer (95) is provided with a groove, the inner wall of the groove is fixedly connected with the second elastic block (94), and the groove is connected with the first elastic block (91) in a sliding mode.
5. The PE pipe with flame resistance and pressure resistance as recited in claim 1, wherein: the fireproof cloth (10) is specifically basalt fiber, and the thickness of the fireproof cloth (10) is set to be one third of that of the protective layer (11).
6. The PE pipe with flame resistance and pressure resistance as recited in claim 1, wherein: the protective layer (11) comprises an inner protective layer (110) and an outer protective layer (111), the inner wall of the inner protective layer (110) is fixedly connected with the fireproof cloth (10), the outer wall of the inner protective layer (110) is fixedly connected with the thread (12), the thread (12) is specifically a stainless steel pressure-resistant line, the stainless steel pressure-resistant line is spirally arranged on the outer wall of the inner protective layer (110), and the outer wall of the inner protective layer (110) is fixedly connected with the inner wall of the outer protective layer (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840154.9U CN213177112U (en) | 2020-08-28 | 2020-08-28 | Flame-retardant anti-compression PE pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840154.9U CN213177112U (en) | 2020-08-28 | 2020-08-28 | Flame-retardant anti-compression PE pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213177112U true CN213177112U (en) | 2021-05-11 |
Family
ID=75769344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021840154.9U Expired - Fee Related CN213177112U (en) | 2020-08-28 | 2020-08-28 | Flame-retardant anti-compression PE pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213177112U (en) |
-
2020
- 2020-08-28 CN CN202021840154.9U patent/CN213177112U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |