CN110273530B - Double-layer anti-compression acrylic floor - Google Patents
Double-layer anti-compression acrylic floor Download PDFInfo
- Publication number
- CN110273530B CN110273530B CN201910613298.6A CN201910613298A CN110273530B CN 110273530 B CN110273530 B CN 110273530B CN 201910613298 A CN201910613298 A CN 201910613298A CN 110273530 B CN110273530 B CN 110273530B
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000007906 compression Methods 0.000 title claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 241000264877 Hippospongia communis Species 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 230000008602 contraction Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- -1 acryl Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a double-layer anti-compression acrylic floor, which structurally comprises acrylic floors, buckling supports and a connecting plate, wherein two adjacent acrylic floors are connected together through the buckling supports, and the two adjacent buckling supports are seamlessly connected with the connecting plate. Make the ya keli floor have the function of fire prevention, thereby can avoid the ya keli floor to receive burning, can avoid generating formaldehyde, and honeycomb holes on the aluminum plate honeycomb can make the inboard gas can the free flow, reduce the yakeli floor coefficient of thermal expansion, realize the indirect concatenation on yakeli floor and yakeli floor, make yakeli floor and yakeli floor not direct contact, thereby make both have flexible clearance, avoid yakeli floor shrinkage to produce the gap, the yakeli floor of expending with heat is protruding or the fracture, have the guard action to the yakeli floor, help prolonging the life on yakeli floor.
Description
Technical Field
The invention relates to the technical field of floors, in particular to a double-layer anti-compression acrylic floor.
Background
Acrylic is an important plastic polymer material which is developed earlier, has better transparency, chemical stability and weather resistance, is easy to dye, process and beautiful in appearance, is widely applied to the building industry, and is introduced into floors because acrylic boards have excellent performances such as weather resistance, acid and alkali resistance and the like, but the existing acrylic floors have the following defects to be improved due to the incomplete technology:
1) when a fire occurs, the acrylic floor can be burnt, because the acrylic floor is formed by polymerizing methyl methacrylate monomers, the polymethyl methacrylate is not completely burnt to produce formaldehyde and carbon dioxide, the harm of the formaldehyde is known, and the formaldehyde is exploded when burning, so that the acrylic floor is extremely dangerous;
2) the yakeli board cold-contraction coefficient of thermal expansion is very big, and yakeli floor concatenation is a slice, if when the cold contraction, interval between yakeli floor and the yakeli floor can the grow, so gap meeting grow to dust impurity easily drops in the gap, difficult clearance, if when the cold contraction, interval between yakeli floor and the yakeli floor can the grow, so the gap can diminish, because of there is not scalable clearance even, because of the internal stress between two boards leads to yakeli floor fracture or arch.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a double-layer anti-compression acrylic floor.
The invention is realized by adopting the following technical scheme:
a double-layer compressive acrylic floor structurally comprises acrylic floors, buckling supports and a connecting plate, wherein two adjacent acrylic floors are connected together through the buckling supports, and the two adjacent buckling supports are connected to the connecting plate in a seamless mode;
the acrylic floor comprises an upper acrylic plate, a hook type buckling plate, an aluminum plate honeycomb, a middle acrylic plate and a lower acrylic plate, wherein the hook type buckling plate is buckled with the buckling support;
the buckling support comprises a high-strength connecting group, a high-strength base, a spring group and a high-strength connecting rod, wherein the high-strength base is buckled with the hook-type buckling plate.
Preferably, aluminum plate honeycombs are fixedly connected between the upper acrylic plate and the middle acrylic plate and between the middle acrylic plate and the lower acrylic plate, and hook-type buckling plates which are of an integrated structure with the four square positions of the upper acrylic plate and the four square positions of the lower acrylic plate are fixed on the four square positions of the upper acrylic plate and the four square positions of the lower acrylic plate.
As optimization, high strength base both sides all are connected with high strength connection group through spring assembly, and are two sets of high strength connection group all with high strength base sliding connection, it is two sets of high strength connection group still cooperates through the high strength connecting rod.
Preferably, the high-strength connecting set comprises an outer movable plate, spring hinge telescopic forks and an inner movable plate, the outer movable plate and the inner movable plate are connected together through the spring hinge telescopic forks, the spring hinge telescopic forks are arranged in an equidistant mode and are more than or equal to one group, and the inner movable plate is connected with the spring group.
Preferably, the outer movable plate comprises two-step holes and a first plate body, the two-step holes are uniformly distributed on the first plate body, the two adjacent two-step holes are distributed in a staggered mode, and the two-step holes are in clearance fit with one end of the high-strength connecting rod.
As optimization, the inner movable plate comprises a second plate body, small holes and guide holes, the guide holes which are arranged in a staggered mode are uniformly distributed in the second plate body, the small holes which are integrated with the second plate body are formed in four directions of the guide holes, the guide holes are in clearance fit with the high-strength connecting rod, the small holes are matched with the spring groups, and the second plate body is connected with the high-strength base in a sliding mode.
As an optimization, the high-strength base comprises a base body, mounting holes and clamping grooves, the mounting holes are uniformly distributed on the base body and are staggered with each other, the clamping grooves integrated with the base body are formed in the upper end and the lower end of the base body, the mounting holes are excessively matched with the middle part of the high-strength connecting rod, the clamping grooves are buckled with the hook-type buckling plates, and the base body is connected with the spring set.
Preferably, the spring assembly comprises guide rods, connecting rings, springs and guide pieces, the connecting rings are uniformly distributed on four square spring rings of the springs, the connecting rings are hinged to the guide pieces, the guide pieces penetrate through the guide rods in clearance fit, one ends of the springs are connected with the base body, the other ends of the springs are connected to the second plate body, and the guide rods further penetrate through small holes in clearance fit.
Advantageous effects
Compared with the prior art, the invention provides a double-layer anti-compression acrylic floor which has the following beneficial effects:
(I) according to the invention, the upper, middle and lower acrylic plates and the aluminum plate honeycomb are combined, and the aluminum plate honeycomb is clamped between two adjacent acrylic plates, so that the acrylic floor is more stable and has a fireproof function due to the excellent performances of high wind pressure resistance, shock absorption, sound insulation, flame retardance, high specific strength and the like of a honeycomb material, the acrylic floor can be prevented from being burnt, the generation of formaldehyde can be avoided, and the honeycomb holes on the aluminum plate honeycomb can enable gas in the plates to flow freely, so that the thermal expansion coefficient of the acrylic floor is reduced;
according to the invention, (II) the acrylic floor and the acrylic floor are indirectly spliced through the combination of the high-strength connecting group, the high-strength base, the spring group and the high-strength connecting rod, so that the acrylic floor and the acrylic floor are not directly contacted, and the acrylic floor are provided with telescopic gaps, thereby preventing the acrylic floor from generating gaps due to cold contraction, preventing the acrylic floor from bulging or cracking due to thermal expansion, protecting the acrylic floor, and prolonging the service life of the acrylic floor.
Drawings
Fig. 1 is a schematic structural view of a double-layer acrylic floor according to the present invention.
Fig. 2 is a schematic front view of the combination of the acrylic floor and the fastening support according to the present invention.
Fig. 3 is a schematic longitudinal sectional structure view of the acryl floor of the present invention.
Fig. 4 is a schematic perspective view of a hook-type fastening plate of the present invention.
Fig. 5 is a schematic front view of the fastening seat of the present invention.
Fig. 6 is a side view of the external moving plate according to the present invention.
Fig. 7 is a side view of the inner movable plate according to the present invention.
Fig. 8 is a schematic cross-sectional view of a high-strength base according to the present invention.
Fig. 9 is a side view of the spring assembly of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
the novel high-strength floor comprises an acrylic floor-100, a buckling support-200, a connecting plate-300, an upper acrylic plate-Q1, a hook type buckling plate-Q2, an aluminum plate honeycomb-Q3, a middle acrylic plate-Q4, a lower acrylic plate-Q5, a high-strength connecting group-P1, a high-strength base-P2, a spring group-P3, a high-strength connecting rod-P4, an outer movable plate-P10, a spring hinge telescopic fork-P11, an inner movable plate-P12, a second-order hole-1000, a first plate-101, a second plate-120, a small hole-121, a guide hole-122, a base body-P20, a mounting hole-P21, a clamping groove-P22, a guide rod-P30, a connecting ring-P31 and a spring-P32.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution of a double-layer acrylic floor: the structure of the floor comprises acrylic floors 100, buckling supports 200 and a connecting plate 300, wherein two adjacent acrylic floors 100 are connected together through the buckling supports 200, and two adjacent buckling supports 200 are connected to the connecting plate 300 in a seamless mode;
the acrylic floor 100 comprises an upper acrylic plate Q1, a hook type buckling plate Q2, an aluminum plate honeycomb Q3, a middle acrylic plate Q4 and a lower acrylic plate Q5, wherein the hook type buckling plate Q2 is buckled with the buckling support 200;
the buckling support 200 comprises a high-strength connecting group P1, a high-strength base P2, a spring group P3 and a high-strength connecting rod P4, wherein the high-strength base P2 is buckled with a hook-type buckling plate Q2.
Go up ya keli board Q1 and well ya keli board Q4, well ya keli board Q4 and lower equal fixedly connected with aluminum plate honeycomb Q3 between ya keli board Q5, go up ya keli board Q1, four square of lower ya keli board Q5 all are fixed with the formula of colluding buckle board Q2 as the integral structure with it, aluminum plate honeycomb Q3's setting has anti high wind pressure, shock attenuation because of cellular material, gives sound insulation, fire-retardant and the high performance of specific strength, makes the ya keli floor more stable for the yakeli floor has the function of fire prevention, avoids generating formaldehyde, and the honeycomb holes on aluminum plate honeycomb Q3 can make the board internal gas can freely flow, reduces the yakeli floor and is heated expansion coefficient.
High strength base P2 both sides all are connected with high strength connection group P1 through spring assembly P3, and are two sets of high strength connection group P1 all with high strength base P2 sliding connection, two sets of high strength connection group P1 still cooperates through high strength connecting rod P4.
High strength connection group P1 is including outer movable plate P10, the flexible fork P11 of spring hinge, interior movable plate P12, link together through the flexible fork P11 of spring hinge between outer movable plate P10 and the interior movable plate P12, the flexible fork P11 of spring hinge is equidistant formula cloth row and has 3 groups and above, interior movable plate P12 is connected with spring group P3, high strength connection group P1's setting can splice two ya keli floors fast, and can change along with yakeli floor shrinkage and thermal expansion, avoids yakeli floor shrinkage to produce the gap, prevents the yakeli floor arch of thermal expansion.
Outer movable plate P10 is including second order hole 1000, a plate body 101, the equipartition has second order hole 1000, adjacent two on the plate body 101 be the setting of staggering between the second order hole 1000, second order hole 1000 adopts clearance fit with high strength connecting rod P4's one end, the setting in second order hole 1000 plays the effect of restriction to high strength connecting rod P4, prevents effectively that outer movable plate P10 from breaking away from high strength connecting rod P4, makes outer movable plate P10 receive to support comparatively evenly simultaneously, has improved the intensity and the compression factor of lock support 200.
Interior movable plate P12 is including No. two plate bodies 120, aperture 121, guiding hole 122, the equipartition is equipped with the guiding hole 122 of mutual setting of staggering on No. two plate bodies 120, four positions of guiding hole 122 all are provided with the aperture 121 with No. two plate bodies 120 structure as an organic whole, guiding hole 122 and high strength connecting rod P4 adopt clearance fit, aperture 121 cooperates in spring group P3, No. two plate bodies 120 and high strength base P2 sliding connection, the setting of guiding hole 122 plays the effect of direction to high strength connecting rod P4 for interior movable plate P12 can horizontal migration.
High strength base P2 is including base member P20, mounting hole P21, draw-in groove P22, the equipartition has the mounting hole P21 of the setting that staggers each other on the base member P20, draw-in groove P22 as the integral structure with it is all seted up to base member P20's upper and lower both ends both sides, mounting hole P21 adopts excessive cooperation with high strength connecting rod P4's position placed in the middle, draw-in groove P22 and collude formula buckled board Q2 mutually, base member P20 is connected with spring assembly P3, draw-in groove P22's setting can coincide with colluding formula buckled board Q2, when cold-shrink or cold-expanding, can both make high strength base P2 and acrylic floor laminating, prevent to appear the gap.
Spring assembly P3 is including guide bar P30, go-between P31, spring P32, guide plate P33, four square spring rings of spring P32 equipartitions are equipped with go-between P31, go-between P31 hinged joint has guide plate P33, guide plate P33 runs through and has adopted clearance fit's guide bar P30 with it, spring P32's one end and base P20 are connected, and the other end is connected in No. two plate bodies 120, guide bar P30 still runs through in the aperture 121 that adopts clearance fit with it, the setting of guide bar P30 plays the effect of direction, restriction to the flexible of spring P32, prevents effectively that spring P32 from taking place the distortion.
The working principle of the invention is as follows: the acrylic floor 100 and the acrylic floor 100 can be assembled through the matching of the hook type buckling plate Q2 and the clamping groove P22, when the acrylic floor 100 shrinks, a certain gap is formed between the hook type buckling plate Q2 and the inner movable plate P12, so that the spring hinge telescopic fork P11 has certain space retraction, the inner movable plate P12 and the outer movable plate P10 move towards each other under the guiding effect of the high-strength connecting rod P4, the base body P20 and the hook type buckling plate Q2 can be clamped, the high-strength connecting rod P4 not only plays a role in guiding the inner movable plate P12 and the outer movable plate P10, but also plays a role in supporting, the strength coefficient and the pressure resistance of the buckling support 200 are further improved, the spring P32 has a reset space due to the generation of the gap due to extrusion, the spring P32 extends outwards under the guiding effects of the connecting ring P31 and the guiding rod P30, and the guide rod P30 plays a role in guiding the extension of the spring P32, The effect of restriction effectively prevents that spring P32 from taking place the distortion, has further improved interior movable plate P12 to colluding the tight degree of clamp of formula buckle board Q2 with base member P20 for inferior gram force floor 100 can not produce the gap with lock support 200, and vice versa with the same reason, can avoid the protruding or fracture of thermal expansion inferior gram force floor, have the guard action to inferior gram force floor, help prolonging the life on inferior gram force floor.
In summary, the technical progress obtained by the invention compared with the prior art is as follows:
(1) according to the invention, the upper, middle and lower acrylic plates and the aluminum plate honeycomb are combined, and the aluminum plate honeycomb is clamped between two adjacent acrylic plates, so that the acrylic floor is more stable and has a fireproof function due to the excellent performances of high wind pressure resistance, shock absorption, sound insulation, flame retardance, high specific strength and the like of a honeycomb material, the acrylic floor can be prevented from being burnt, the generation of formaldehyde can be avoided, and the honeycomb holes on the aluminum plate honeycomb can enable gas in the plates to flow freely, so that the thermal expansion coefficient of the acrylic floor is reduced;
(2) according to the invention, through the combined arrangement of the high-strength connecting group, the high-strength base, the spring group and the high-strength connecting rod, the acrylic floor and the acrylic floor are indirectly spliced, so that the acrylic floor and the acrylic floor are not in direct contact, the acrylic floor and the acrylic floor have telescopic gaps, the phenomenon that the acrylic floor generates gaps due to cold contraction is avoided, the acrylic floor expands or cracks due to heat, the acrylic floor is protected, and the service life of the acrylic floor is prolonged.
Claims (5)
1. The utility model provides a double-deck resistance to compression ya keli floor, its structure includes ya keli floor (100), lock support (200), connecting plate (300), ya keli floor (100) and lock support (200) concatenation, lock support (200) are connected in connecting plate (300), its characterized in that:
the acrylic floor (100) comprises an upper acrylic board (Q1), a hook type buckling board (Q2), an aluminum plate honeycomb (Q3), a middle acrylic board (Q4) and a lower acrylic board (Q5);
the buckling support (200) comprises a high-strength connecting group (P1), a high-strength base (P2), a spring group (P3) and a high-strength connecting rod (P4);
aluminum plate honeycombs (Q3) are connected between the upper acrylic plate (Q1) and the middle acrylic plate (Q4), between the middle acrylic plate (Q4) and the lower acrylic plate (Q5), and hook-type buckling plates (Q2) are arranged on the upper acrylic plate (Q1) and the lower acrylic plate (Q5);
the high-strength base (P2) is connected with a high-strength connecting group (P1) through a spring group (P3), and the two high-strength connecting groups (P1) are matched through a high-strength connecting rod (P4);
the high-strength connecting group (P1) comprises an outer movable plate (P10), a spring hinge telescopic fork (P11) and an inner movable plate (P12), wherein the outer movable plate (P10) is connected with the inner movable plate (P12) through the spring hinge telescopic fork (P11), and the inner movable plate (P12) is connected with the spring group (P3).
2. The double-layer acrylic floor according to claim 1, wherein: the outer movable plate (P10) comprises a second-step hole (1000) and a first plate body (101), wherein the second-step hole (1000) matched with the high-strength connecting rod (P4) is uniformly distributed on the first plate body (101).
3. The double-layer acrylic floor according to claim 1, wherein: the inner moving plate (P12) comprises a second plate body (120), small holes (121) and guide holes (122), wherein the guide holes (122) matched with the high-strength connecting rod (P4) and the small holes (121) matched with the spring group (P3) are uniformly distributed on the second plate body (120).
4. The double-layer acrylic floor according to claim 1, wherein: high strength base (P2) is including base member (P20), mounting hole (P21), draw-in groove (P22), equipartition and high strength connecting rod (P4) complex mounting hole (P21) on base member (P20), base member (P20) still are equipped with draw-in groove (P22) anastomotic with colluding formula buckled board (Q2), base member (P20) is connected with spring assembly (P3).
5. The double-layer acrylic floor according to claim 1, wherein: spring assembly (P3) is including guide bar (P30), go-between (P31), spring (P32), guide plate (P33), spring (P32) equipartition is equipped with go-between (P31) of taking guide plate (P33), guide plate (P33) and guide bar (P30) cooperation, spring (P32) one end links to each other with base member (P20), and the other end meets with No. two plate bodies (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613298.6A CN110273530B (en) | 2019-07-09 | 2019-07-09 | Double-layer anti-compression acrylic floor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613298.6A CN110273530B (en) | 2019-07-09 | 2019-07-09 | Double-layer anti-compression acrylic floor |
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| Publication Number | Publication Date |
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| CN110273530A CN110273530A (en) | 2019-09-24 |
| CN110273530B true CN110273530B (en) | 2020-12-15 |
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| CN113479265B (en) * | 2021-05-19 | 2023-11-24 | 北京汽车研究总院有限公司 | Cargo box floor, floor processing system and floor processing method |
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| CN208733993U (en) * | 2018-06-22 | 2019-04-12 | 佛山市迈凯菲陶瓷有限公司 | A kind of plug-in Dali stone ceramic tile |
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| CN109826400A (en) * | 2019-03-27 | 2019-05-31 | 林继承 | A kind of bilayer resistance to compression acrylic floor |
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2019
- 2019-07-09 CN CN201910613298.6A patent/CN110273530B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201065619Y (en) * | 2007-04-05 | 2008-05-28 | 赖英光 | Plastic floor combination with elevated base |
| CN201802003U (en) * | 2010-04-02 | 2011-04-20 | 建研建材有限公司 | Automatic temperature-regulating phase-change energy-storing plate |
| CN205976333U (en) * | 2016-08-20 | 2017-02-22 | 将乐县天马木制综合厂 | Proof warp resistance to compression timber apron |
| CN205976352U (en) * | 2016-08-20 | 2017-02-22 | 将乐县天马木制综合厂 | Timber apron is spliced to buffering form of preapring for an unfavorable turn of events |
| CN208329481U (en) * | 2018-05-31 | 2019-01-04 | 焦作市富泉塑胶有限公司 | A kind of PVC- metal composite splice floor board |
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| CN110273530A (en) | 2019-09-24 |
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