CN112796480B - Waterproof flame-retardant spliced medium-high-density fiber base material - Google Patents
Waterproof flame-retardant spliced medium-high-density fiber base material Download PDFInfo
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- CN112796480B CN112796480B CN202011640900.4A CN202011640900A CN112796480B CN 112796480 B CN112796480 B CN 112796480B CN 202011640900 A CN202011640900 A CN 202011640900A CN 112796480 B CN112796480 B CN 112796480B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0832—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements
Abstract
The invention discloses a waterproof flame-retardant spliced medium-high-density fiber base material, which comprises a spliced part, a splicing part and a plurality of splicing parts, wherein the spliced part is positioned on one side of the fiber base material; the matching part is positioned at the other side of the fiber base material; the locking pieces are respectively positioned on the splicing part and the matching part; the two fiber base materials are spliced with each other through the splicing part and the matching part, and the positions of the locking pieces correspond to each other. The invention has good waterproof and flame retardant properties and is convenient for splicing and installation.
Description
Technical Field
The invention belongs to the technical field of plates, and particularly relates to a waterproof flame-retardant spliced medium-high-density fiber base material.
Background
In modern office and home locations, many materials are flammable materials. Due to the uncertainty of fire, when a fire breaks out, many materials will burn, on one hand, a large amount of heat is generated, and more importantly, many materials will emit toxic gases and smoke, thereby increasing the hazard of the fire.
In order to reduce the harm of fire, a plurality of flame retardant materials are tested or used, however, the plate in the prior art has the problem of poor flame retardant effect, so that the application of the flame retardant material is limited.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems and/or problems occurring in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a waterproof flame-retardant spliced medium-high density fiber base material comprises,
the splicing part is positioned on one side of the fiber base material;
the matching part is positioned at the other side of the fiber base material; and the number of the first and second groups,
the locking pieces are respectively positioned on the splicing part and the matching part;
the two fiber base materials are spliced with each other through the splicing part and the matching part, and the positions of the locking pieces correspond to each other.
As a preferred scheme of the waterproof flame-retardant spliced medium-high-density fiber base material, the waterproof flame-retardant spliced medium-high-density fiber base material comprises the following components in percentage by weight: the fiber base material is provided with a mounting hole for mounting the locking piece, and the locking piece is provided with a locking hole coaxial with the mounting hole;
when the positions of the locking pieces correspond to each other, the locking holes are coaxially communicated;
wherein, the locking hole is a through hole or a threaded hole.
As a preferred scheme of the waterproof flame-retardant spliced medium-high-density fiber base material, the waterproof flame-retardant spliced medium-high-density fiber base material comprises the following components in percentage by weight: the locking piece comprises a base piece and a connecting piece which are positioned at two ends of the mounting hole, and the base piece is connected with the connecting piece;
wherein the locking hole penetrates through the base member and the connecting member.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the base member with be equipped with the stop part on the connecting piece respectively, the both ends of mounting hole are equipped with respectively and hold the storage tank of stop part.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the base part and the connecting part are generally columnar, the connecting part is sleeved on the outer side of the base part, and the connecting part is connected with the base part through threads;
wherein the stop member is axially movable relative to the connector.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the stop piece is polygonal, and the diameter of the stop piece is larger than that of the base piece and the connecting piece;
wherein, the stop piece and the storage tank are in interference fit.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the connecting piece comprises a first shaft section and a second shaft section with the diameter smaller than that of the first shaft section, and the first shaft section is in sliding contact with the mounting hole;
the stop piece is sleeved on the outer side of the second shaft section, a guide groove extending along the axial direction is formed in the second shaft section, and the stop piece moves along the guide groove in a guiding mode through the guide block.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: and the second shaft section is also provided with a limiting groove matched with the guide block, the limiting groove extends along the circumferential direction and is communicated with the guide groove, and the length of the limiting groove is not less than the width of the guide block.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the fiber base material comprises a core material and coating layers, wherein the core material is clamped by the coating layers on two sides, the coating layers form a certain length allowance around the core material, the length allowances of the opposite ends of the coating layers on the two sides extend outwards in opposite directions, and the length allowance extending outwards forms the splicing part or the matching part;
wherein the core material and the coating layer are bonded by an adhesive.
As a preferred scheme of the waterproof flame-retardant splicing type medium-high density fiber base material, the waterproof flame-retardant splicing type medium-high density fiber base material comprises the following components in percentage by weight: the length allowance protrudes out of the surface of the cladding layer and encloses a cavity with an opening;
the concave cavities of the coating layers on the two sides form a closed containing cavity, and the core material is located in the containing cavity.
Compared with the prior art, the invention has the following beneficial effects: in the embodiment, when the wall is installed, particularly at the corners of the wall, because the existence of the length allowance extending outside the coating layer can cause that the corners of the wall are not covered by the core material, and the defects such as empty bags and the like exist, the length allowance extending outside the coating layer can be cut off, such as cut-off during installation; at this time, although the length margin extending outside the coating layer is cut off, the core material can still be completely wrapped due to the existence of the length margin, and the flame retardant performance is not reduced due to sawing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic view of the fiber substrate of the present invention after splicing;
FIG. 2 is a schematic illustration of the installation process of the fibrous substrate of FIG. 1;
FIG. 3 is a schematic structural view of a fibrous substrate of the present invention;
FIG. 4 is an enlarged view of the base member and connector assembly of the present invention;
FIG. 5 is a schematic view of the overall structure of the locking member of the present invention;
FIG. 6 is a schematic illustration of the base member and connector of FIG. 5 shown separated in accordance with the present invention;
FIG. 7 is a schematic view of the connector of the present invention shown separated from the stopper;
FIG. 8 is a schematic plan view of a fibrous substrate of the present invention;
FIG. 9 is an exploded schematic view of a fibrous substrate of the present invention;
FIG. 10 is a cross-sectional view of the two side coatings of the present invention in a bonded configuration.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, specific embodiments thereof are described in detail below with reference to examples of the specification.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 4, a first embodiment of the present invention provides a waterproof flame-retardant spliced medium-high density fiber base material, which includes a spliced portion 101, a matching portion 102, and a locking member 103, where the spliced portion 101 is located on one side of the fiber base material 100; the mating portion 102 is located on the other side of the fibrous base material 100; the locking piece 103 is respectively positioned on the splicing part 101 and the matching part 102;
wherein, the two fiber base materials 100 are spliced with each other through a splicing part 101 and a matching part 102 to cover a larger area, such as the splicing of floor boards or wall boards; in order to meet the installation requirement, the fiber base material 100 is rectangular as a whole, and can meet the installation requirement of most rectangular wall surfaces or floors; when two fiber base materials 100 are spliced with each other through the splicing part 101 and the matching part 102, the positions of the locking pieces 103 on the splicing part 101 and the positions of the locking pieces 103 on the matching part 102 correspond to each other, so that connection is established between the locking pieces 103, and the two spliced fiber base materials 100 can be fixed into a whole.
Specifically, the fiber base material 100 is provided with a mounting hole N1 for mounting the locking member 103, and the locking member 103 is provided with a locking hole N2 coaxial with the mounting hole N1; when the positions of the locking pieces 103 correspond to each other, the locking holes N2 are coaxially communicated; the locking holes N2 are through holes, and the fiber base material 100 can be fixed to a mounting wall by passing screws through the corresponding locking holes N2; alternatively, the locking hole N2 may be a threaded hole, and two corresponding locking pieces 103 may be screwed together by the bolt 106, so that the two fiber base materials 100 may be connected integrally.
Example 2
Referring to fig. 1 to 6, this embodiment is different from the first embodiment in that: the locking piece 103 comprises a base piece 103a and a connecting piece 103b which are positioned at two ends of the mounting hole N1, the base piece 103a and the connecting piece 103b are connected, when in processing, the mounting hole N1 which penetrates through is drilled at the corresponding position of the splicing part 101 or the matching part 102 of the fiber base material 100, and the base piece 103a and the connecting piece 103b respectively extend into the two ends of the mounting hole N1 and are connected to form the locking piece 103, namely the installation is completed.
Note that the locking hole N2 penetrates the base member 103a and the connector member 103b, that is, both the base member 103a and the connector member 103b have through holes therein, and when the base member 103a and the connector member 103b establish connection in the mounting hole N1, the through holes communicate with each other to form the locking hole N2.
In order to ensure that the locking member 103 in the mounting hole N1 does not fall off, the base member 103a and the connecting member 103b are respectively provided with a stop member 103c, the size of the stop member 103c is larger than the diameter of the mounting hole N1, the stop member 103c is located outside the mounting hole N1, and when the base member 103a and the connecting member 103b establish connection in the mounting hole N1, a pulling force is formed between the two stop members 103c, so that the locking member 103 can be ensured not to fall off from the mounting hole N1.
Further, in order to enable the stop member 103c not to interfere with the splicing between the splicing portion 101 and the matching portion 102, the two ends of the mounting hole N1 are respectively provided with an inward concave accommodating groove N3 capable of accommodating the stop member 103c, the depth of the accommodating groove N3 is not smaller than the thickness of the stop member 103c, so that the stop member 103c can be completely hidden in the accommodating groove N3, and the splicing between the splicing portion 101 and the matching portion 102 cannot be affected by the thickness of the stop member 103 c.
Furthermore, in order to prevent the locking member 103 from rotating in the mounting hole N1, the locking member 103 is in a fixed state, the stopping member 103c is in a polygon shape, such as a regular hexagon in the embodiment, and the accommodating groove N3 is in a regular hexagon matched with the accommodating groove N3, so that when the stopping member 103c is hidden in the accommodating groove N3, the locking member 103 can be prevented from rotating in the mounting hole N1. It will be appreciated by those skilled in the art that other shapes of polygonal structures are within the scope of the present application.
Example 3
Referring to fig. 1 to 6, this embodiment is different from the first embodiment in that: the base member 103a and the connecting member 103b are substantially columnar, the connecting member 103b is sleeved outside the base member 103a, and the connecting member 103b is connected with the base member 103a through threads;
specifically, the base member 103a comprises a first column section 103a-1 and a second column section 103a-2, the diameter of the first column section 103a-1 is larger than that of the second column section 103a-2, the first column section 103a-1 can be in sliding contact with the mounting hole N1, the connecting member 103b is sleeved on the outer side of the second column section 103a-2, the second column section 103a-2 is provided with external threads, and the connecting member 103b is in threaded connection with the second column section 103a-2 through the internal threads.
Since the base member 103a and the connector 103b are connected by a thread, the stopper 103c on the base member 103a or the connector 103b may not be hidden in the receiving groove N3, and therefore, the stopper 103c can move axially relative to the connector 103 b; when the connector is installed, the base member 103a is inserted into the installation hole N1 in advance, the stopper 103c on the base member 103a is inserted into the accommodation groove N3, at this time, the connector 103b is inserted from the other end of the installation hole N1, the connector 103b is rotated by the stopper 103c on the connector 103b to be screwed with the base member 103a, and after the fastening, the stopper 103c is moved in the axial direction of the connector 103b to be inserted into the accommodation groove N3.
It should be noted that, the stop member 103c is in interference fit with the accommodating groove N3, and by applying an external force, the stop member 103c enters the accommodating groove N3, and after the interference fit, the stop member 103c located in the accommodating groove N3 cannot fall off, so that it is ensured that the whole locking member 103 cannot fall off.
Example 4
Referring to fig. 1 to 7, this embodiment is different from the first embodiment in that: the connecting piece 103b comprises a first shaft section 103b-1 and a second shaft section 103b-2 with the diameter smaller than that of the first shaft section 103b-1, and the first shaft section 103b-1 is in sliding contact with the mounting hole N1;
the stop piece 103c is sleeved outside the second shaft section 103b-2, a guide groove N4 extending along the axial direction is formed in the second shaft section 103b-2, an opening is formed in one side of the guide groove N4, the stop piece 103c moves along the guide groove N4 through the guide block 103c-1 in a guiding mode, the guide block 103c-1 enters the guide groove N4 from the opening, the width of the guide groove N4 is slightly larger than that of the guide block 103c-1, when the guide block 103c-1 is located in the guide groove N4, the stop piece 103c is rotated, the guide block 103c-1 is contacted with the side wall of the guide groove N4, the connecting piece 103b can be pushed to rotate integrally, and therefore the purpose of threaded connection is achieved; after the fastening, the stopper 103c is moved along the guide groove N4, so that the stopper 103c can move axially along the connecting member 103b and enter the accommodating groove N3.
Since one side of the guide groove N4 is provided with an opening, the stop piece 103c can fall off from the opening in the rotation process, furthermore, the second shaft section 103b-2 is also provided with a limiting groove N5 matched with the guide block 103c-1, the limiting groove N5 extends along the circumferential direction and is communicated with the guide groove N4, the width of the limiting groove N5 is slightly larger than the axial length of the guide block 103c-1, and the circumferential length of the limiting groove N5 is not smaller than the width of the guide block 103 c-1; the rotation stop member 103c enables the guide block 103c-1 to enter the limiting groove N5 from the guide groove N4, the guide block 103c-1 cannot move axially in the limiting groove N5, and after the guide block 103c-1 is contacted with the far-end inner wall of the limiting groove N5, the rotation stop member 103c continues to rotate, the connecting piece 103b can be pushed to rotate integrally, so that the circumferential extending direction of the limiting groove N5 is the fastening rotation direction of the threads.
At this time, in the process of screw fastening, the stop member 103c cannot fall off, after the fastening is finished, the stop member 103c is rotated reversely, so that the guide block 103c-1 returns to the guide groove N4 from the limiting groove N5, and then the stop member 103c is moved; since the width of the limiting groove N5 is slightly larger than the axial length of the guide block 103c-1, the reverse rotation of the stopper 103c does not cause the loosening of the screw thread between the base member 103a and the connection member 103 b.
It should be noted that, because the limiting groove N5 has a certain distance from the end of the second shaft section 103b-2, in order to ensure that the second shaft section 103b-2 does not extend out of the accommodating groove N3 after the screw is fastened, and meanwhile, the stop member 103c can completely enter the accommodating groove N3, the guide block 103c-1 is disposed on the end surface of the stop member 103c, and extends for a certain height along the axial direction, a gap is left between the guide block 103c-1 and the end surface of the stop member 103c, the height of the gap is not less than the distance from the limiting groove N5 to the end of the second shaft section 103b-2, the guide groove N4 is kept to have a certain axial length, and at this time, the stop member 103c can completely enter the accommodating groove N3.
Example 5
Referring to fig. 8 to 10, this embodiment is different from the first embodiment in that: the fiber base material 100 comprises a core material 104 and a coating layer 105, the core material 104 is clamped by the coating layers 105 at two sides, the core material 104 is a wood layer in the embodiment, and the coating layer 105 is a uniform flame retardant layer, so that the fiber base material has the advantages of fire resistance, moisture resistance and corrosion resistance; the core material 104 and the coating layer 105 are bonded by an adhesive, and the advantages of high strength, high impact resistance and high breaking resistance are realized through secondary hot pressing.
The coating layer 105 forms a certain length allowance around the core material 104, the length allowance extends towards the length or width direction of the core material 104, the length allowances of the opposite ends of the coating layer 105 at two sides extend outwards in opposite directions, and the outward extending length allowance forms a splicing part 101 or a matching part 102; the two fiber base materials 100 are overlapped on the matching part 102 through the splicing part 101 to form a splice.
Specifically, the length allowance protrudes from the surface of the cladding layer 105 and encloses a cavity N6 with an opening; the concave cavities N6 of the coating layers 105 on the two sides form a closed accommodating cavity N7, and the core material 104 is positioned in the accommodating cavity N7; the core material 104 is completely wrapped in the coating layer 105, and the flame retardant property of the core material 104 is improved.
In the embodiment, when the wall is installed, especially at the corners of the wall, because the existence of the length margin extending outside the coating layer 105 may cause that the corners of the wall are not covered by the core material 104, and the defects such as empty bags exist, the length margin extending outside the coating layer 105 can be cut off, for example, cut off; at this time, although the length margin extending outside of the covering layer 105 is cut off, since the length margin still exists, the core material 104 can be completely wrapped, and the flame retardant performance is not degraded by the sawing.
The thickness of the flame-retardant layer is between 1 and 25 millimeters, and the weight ratio of the composition is that one or more than one of wood processing crushed aggregates or crop straws with the particle diameter between 0.1 and 3 millimeters are mixed by 50 to 200 kilograms; also comprises filled auxiliary materials and inorganic salt;
the auxiliary materials are as follows: 10-55 kg of expanded perlite, 50-280 g of sodium phosphate, 100-320 g of lithopone and 0.05-2.5 kg of emulsifier; the inorganic salt is: 200 to 400 kg of magnesium chloride and 100 to 300 kg of magnesium oxide.
Wherein, the thickness of the wood layer is between 0.5 and 50 mm, and the wood layer is subjected to conventional flame retardant, insect prevention and preservative treatment.
The phenol modified urea-formaldehyde resin is adopted, a benzene ring structure is introduced into the resin, and a water absorption group of the resin is sealed, so that the water resistance and the aging resistance of the resin are obviously improved;
the phenol modified urea-formaldehyde resin adhesive is adopted, and hydroxyl, hydroxymethyl, aldehyde group generated by hydrolysis and the like on a starch molecular chain participate in the synthesis reaction of the urea-formaldehyde resin, so that the initial viscosity is improved, and the bonding strength and the storage stability are also improved.
The content of formaldehyde in the modified urea-formaldehyde resin adhesive can be effectively reduced by adopting a form of matching 20% of glass powder with the acrylate copolymer emulsion.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (2)
1. The utility model provides a waterproof fire-retardant concatenation formula well high density fiber substrate which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a splice (101) located on one side of the fiber base material (100);
a fitting section (102) located on the other side of the fiber base material (100); and the number of the first and second groups,
the locking pieces (103) are respectively positioned on the splicing part (101) and the matching part (102);
the two fiber base materials (100) are spliced with each other through the splicing part (101) and the matching part (102), and the positions of the locking pieces (103) correspond to each other;
the fiber base material (100) comprises a core material (104) and a coating layer (105), wherein the core material (104) is clamped by the coating layer (105) on two sides, the coating layer (105) forms a certain length allowance around the core material (104), the length allowances of the opposite ends of the coating layer (105) on two sides extend outwards in opposite directions, and the length allowance of the outer extension forms the splicing part (101) or the matching part (102);
wherein the core material (104) and the coating layer (105) are bonded by an adhesive;
the fiber base material (100) is provided with a mounting hole (N1) for mounting the locking piece (103), and the locking piece (103) is provided with a locking hole (N2) coaxial with the mounting hole (N1);
when the positions of the locking pieces (103) correspond to each other, the locking holes (N2) are coaxially communicated;
wherein the locking hole (N2) is a through hole or a threaded hole;
the locking piece (103) comprises a base piece (103 a) and a connecting piece (103 b) which are positioned at two ends of the mounting hole (N1), and the base piece (103 a) is connected with the connecting piece (103 b);
wherein the locking hole (N2) penetrates through the base member (103 a) and the connecting member (103 b);
the base piece (103 a) and the connecting piece (103 b) are respectively provided with a stop piece (103 c), and two ends of the mounting hole (N1) are respectively provided with a containing groove (N3) capable of containing the stop piece (103 c);
the base member (103 a) and the connecting member (103 b) are substantially cylindrical, the connecting member (103 b) is sleeved outside the base member (103 a), and the connecting member (103 b) is connected with the base member (103 a) through threads;
wherein the stop (103 c) is axially movable relative to the connector (103 b);
the stop member (103 c) is polygonal, and the diameter of the stop member (103 c) is larger than the diameters of the base member (103 a) and the connecting member (103 b);
wherein the stop piece (103 c) is in interference fit with the accommodating groove (N3);
the connecting piece (103 b) comprises a first shaft section (103 b-1) and a second shaft section (103 b-2) with a diameter smaller than that of the first shaft section (103 b-1), and the first shaft section (103 b-1) is in sliding contact with the mounting hole (N1);
the stop piece (103 c) is sleeved on the outer side of the second shaft section (103 b-2), a guide groove (N4) extending along the axial direction is formed in the second shaft section (103 b-2), and the stop piece (103 c) moves along the guide groove (N4) in a guiding mode through a guide block (103 c-1);
the second shaft section (103 b-2) is further provided with a limiting groove (N5) matched with the guide block (103 c-1), the limiting groove (N5) extends along the circumferential direction and is communicated with the guide groove (N4), and the length of the limiting groove (N5) is not smaller than the width of the guide block (103 c-1);
the guide block (103 c-1) is arranged on the end face of the stop piece (103 c) and extends for a certain height along the axial direction, a gap is reserved between the guide block (103 c-1) and the end face of the stop piece (103 c), and the height of the gap is not less than the distance between the limiting groove (N5) and the end of the second shaft section (103 b-2).
2. The waterproof flame-retardant spliced medium-high density fiber substrate of claim 1, wherein: the length allowance protrudes out of the surface of the cladding layer (105) and encloses a cavity (N6) with an opening;
the concave cavities (N6) of the coating layers (105) on the two sides form a closed containing cavity (N7), and the core material (104) is located in the containing cavity (N7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011640900.4A CN112796480B (en) | 2020-12-31 | 2020-12-31 | Waterproof flame-retardant spliced medium-high-density fiber base material |
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| CN202011640900.4A CN112796480B (en) | 2020-12-31 | 2020-12-31 | Waterproof flame-retardant spliced medium-high-density fiber base material |
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| CN112796480B true CN112796480B (en) | 2022-10-11 |
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| US11856715B2 (en) | 2021-12-09 | 2023-12-26 | Tcl China Star Optoelectronics Technology Co., Ltd. | Splicing assembly and splicing display screen |
| CN114151424B (en) * | 2021-12-09 | 2023-04-07 | Tcl华星光电技术有限公司 | Splicing assembly and spliced display screen |
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|---|---|---|---|---|
| FR2852450B1 (en) * | 2003-03-13 | 2005-05-13 | Framatome Connectors Int | SYSTEM FOR ELECTRICALLY CONNECTING AND ATTACHING AT LEAST ONE PLATE-LIKE ELECTRICAL CONDUCTOR TO A SUPPORT PART |
| CN201338312Y (en) * | 2008-12-09 | 2009-11-04 | 和龙人造板有限公司 | Compound anti-flaming density board |
| CN202718250U (en) * | 2012-07-25 | 2013-02-06 | 袁江涛 | Composite type fireproof heat-insulating board |
| ES2398119B2 (en) * | 2012-12-27 | 2013-09-16 | Universidad Politécnica de Madrid | Panel system of high energy efficiency and free forms |
| CN104421308A (en) * | 2013-08-20 | 2015-03-18 | 纬创资通股份有限公司 | Double-screw bolt, assembling structure and assembling method |
| CN203784563U (en) * | 2014-01-21 | 2014-08-20 | 潍坊纳博欧化工科技有限公司 | Vacuum heat insulation plate with convenient splicing function |
| CN208830628U (en) * | 2018-08-03 | 2019-05-07 | 苏州巴洛特新材料有限公司 | Fast Installation high duty metal stamp composite decorating board |
| CN111779217A (en) * | 2020-08-05 | 2020-10-16 | 上海兴邺材料科技有限公司 | Floor system and vertical dismounting type floor buckle |
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2020
- 2020-12-31 CN CN202011640900.4A patent/CN112796480B/en active Active
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