PVA (Polyvinyl Alcohol) fiber cement board
By setting multiple grooves in the middle plate of the PVA fiber cement board and clamping them, built-in sound insulation panels and ensuring that the projections of adjacent boards coincide, the weight and cost problems caused by the increase in board thickness are solved, and better sound insulation effects are achieved.
Patent Information
- Application Number
- CN202421028908.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-11
AI Technical Summary
When improving sound insulation, PVA fiber cement boards need to increase their thickness, resulting in increased weight and consume more raw materials, affecting the convenience of handling and material costs.
Design a PVA fiber cement board. Multiple grooves are set on the middle plate. The negative plate and the positive plate clamp the middle plate. Sound insulation panels are installed in the grooves. The projections of adjacent sound insulation panels overlap to avoid faults.
The overall weight is reduced, while the sound insulation effect is significantly improved, the sound insulation board is prevented from being broken, and the sound absorption effect is improved.
Smart Images
Figure CN222375784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fiber cement boards, in particular to a PVA fiber cement board. Background Art
[0002] PVA (polyvinyl alcohol) fiber is a synthetic fiber made from high-quality polyvinyl alcohol (PVA) with a high degree of polymerization and processed using specific advanced technology.
[0003] Fiber cement board, also known as fiber reinforced cement board, is a board made of cement as the basic material and adhesive, and mineral fiber and other fibers as reinforcing materials through pulping, molding, curing and other processes. It is widely used in various fields of the construction industry due to its superior performance.
[0004] Therefore, PVA fiber cement board refers to a cement board made of PVA fiber and cement.
[0005] If you want to achieve better sound insulation effect during the use of PVA fiber cement board, you need to increase the thickness of the PVA fiber cement board. However, increasing the thickness of the PVA fiber cement board will cause the overall weight of the PVA fiber cement board to be large, and the consumption of raw materials will also increase, which is not only inconvenient to move, but also causes an increase in material costs. Utility Model Content
[0006] The purpose of the utility model is to provide a PVA fiber cement board to solve the problems raised in the above background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A PVA fiber cement board comprises a female board, a male board and an intermediate board, wherein the female board and the male board fixing clips are arranged on both sides of the intermediate board;
[0009] A plurality of grooves are formed on the middle plate, the grooves are of a structure with narrow groove openings and wide groove bottoms, and the groove openings of two adjacent grooves face the negative plate and the positive plate respectively;
[0010] A sound insulation board is arranged inside the groove, and the projections of two adjacent sound insulation boards in a direction perpendicular to the surface of the negative plate overlap.
[0011] Preferably, the sound insulation board is made of sound insulation cotton material.
[0012] Preferably, the sound insulation board is inserted into the groove in an interference fit manner.
[0013] Preferably, protrusions are fixedly provided on two mutually adjacent plate surfaces of the negative plate and the positive plate, and the protrusions are clamped inside the grooves.
[0014] Preferably, a receiving groove is formed between the protrusion and the groove bottom of the groove, and the sound insulation board is arranged inside the receiving groove.
[0015] Preferably, the groove is formed by a groove bottom plate and two groove side plates, and the angle between the groove side plates and the groove bottom plate is less than 90°.
[0016] Preferably, flanges are fixedly provided at both ends of the negative plate, and the flanges are fitted with the middle plate.
[0017] Preferably, the groove comprises a rectangular opening and a groove body;
[0018] The protrusion includes a transition portion matching the rectangular opening and a locking portion matching the groove body.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] The utility model arranges a plurality of grooves on the middle plate, and then uses the negative plate and the positive plate to clamp the middle plate, so that the overall weight can be reduced, and then a sound insulation board is arranged inside each groove, which significantly improves the actual sound insulation effect. At the same time, since the notches of two adjacent grooves are respectively oriented to the negative plate and the positive plate, and the projections of the two adjacent sound insulation boards in the direction perpendicular to the plate surface of the negative plate are overlapped, there will be no fault between the multiple sound insulation boards, and the sound absorption effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0022] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the top view of the structure of the utility model without the sound insulation board;
[0024] Figure 4 It is a schematic diagram of the top view of the structure of the negative plate of the utility model;
[0025] Figure 5 It is a schematic diagram of the top view of the structure of the middle plate of the utility model;
[0026] Figure 6 It is a schematic diagram of the top view of the structure of the positive plate of the utility model;
[0027] Figure 7 For this utility model Figure 4 The enlarged structural diagram at A in the middle;
[0028] Figure 8 For this utility model Figure 5 Enlarged structural diagram at B in the middle.
[0029] In the figure: 1, negative plate; 11, flange; 2, positive plate; 3, middle plate; 31, groove; 311, rectangular opening; 312, groove body; 32, groove bottom plate; 33, groove side plate; 4, sound insulation board; 5, protrusion; 51, transition part; 52, positioning part; 6, receiving groove. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] See also Figure 1-Figure 8 , the utility model provides a technical solution:
[0032] A PVA fiber cement board comprises a negative plate 1, a positive plate 2 and a middle plate 3. Specifically, the negative plate 1, the positive plate 2 and the middle plate 3 are all made of PVA fiber and cement material. The negative plate 1 and the positive plate 2 are fixedly clamped on both sides of the middle plate 3. Specifically, Figure 1-Figure 3 As shown, the two adjacent surfaces of the female plate 1 and the male plate 2 are respectively fixed tightly on the two surfaces of the middle plate 3. In this embodiment, the sizes of the female plate 1, the male plate 2 and the middle plate 3 are not limited, and can be selected and adjusted according to actual conditions when used.
[0033] A plurality of grooves 31 are formed on the middle plate 3. The grooves 31 are of a structure with a narrow groove opening and a wide groove bottom. The specific shape of the grooves 31 is not limited. By way of example, as shown in the figure, the grooves 31 in this embodiment are roughly isosceles trapezoidal structures, and the groove openings of two adjacent grooves 31 face the negative plate 1 and the positive plate 2 respectively.
[0034] A sound insulation board 4 is arranged inside the groove 31, and the sound insulation board 4 is used for sound insulation, so that the entire fiber cement board has a good sound insulation effect. The projections of two adjacent sound insulation boards 4 in the direction perpendicular to the board surface of the negative board 1 overlap, so that there will be no faults between the multiple sound insulation boards 4, and the sound absorption effect is better.
[0035] In the above scheme, by setting a plurality of grooves 31 on the middle plate 3, and then using the negative plate 1 and the positive plate 2 to clamp the middle plate 3, the overall weight can be reduced, and then a sound insulation board 4 is set inside each groove 31, which significantly improves the actual sound insulation effect. At the same time, since the notches of the two adjacent grooves 31 are respectively facing the negative plate 1 and the positive plate 2, and the projections of the two adjacent sound insulation boards 4 in the direction perpendicular to the board surface of the negative plate 1 overlap, there will be no fault between the multiple sound insulation boards 4, and the sound absorption effect is better.
[0036] In this embodiment, the sound insulation board 4 is made of sound insulation cotton, which is light in weight. Further, the sound insulation board 4 is inserted into the groove 31 in an interference fit manner.
[0037] like Figure 1-Figure 8 As shown, protrusions 5 are fixedly provided on the two plate surfaces of the negative plate 1 and the positive plate 2 which are close to each other. The protrusions 5 and the negative plate 1 and the positive plate 2 are all integrally formed. The protrusions 5 are clamped inside the grooves 31, so that a fixed connection between the middle plate 3 and the negative plate 1 and the positive plate 2 can be achieved. Of course, in actual use, the bonding and fixation between the middle plate 3 and the negative plate 1 and the positive plate 2 can also be achieved by cement slurry.
[0038] like Figure 1-Figure 3 As shown, an accommodating groove 6 is formed between the protrusion 5 and the bottom of the groove 31 , and the sound insulation board 4 is arranged inside the accommodating groove 6 .
[0039] The groove 31 is formed by a groove bottom plate 32 and two groove side plates 33 . The angle between the groove side plates 33 and the groove bottom plate 32 is less than 90°. In this embodiment, the two groove side plates 33 are symmetrically arranged at both ends of the groove bottom plate 32 .
[0040] like Figure 2-Figure 4 As shown, flanges 11 are fixedly provided at both ends of the female plate 1, and the flanges 11 are fitted with the middle plate 3. Specifically, the flanges 11 in this embodiment are used to fill the space between the end of the female plate 1 and the groove side plate 33, so that the end surface of the entire PVA fiber cement board is a complete plane.
[0041] like Figure 7-Figure 8 As shown, the groove 31 includes a rectangular opening 311 and a groove body 312, and the groove body 312 is an isosceles trapezoidal structure; the protrusion 5 includes a transition portion 51 matching the rectangular opening 311 and a locking portion 52 matching the groove body 312. By setting the rectangular opening 311 and the transition portion 51, since the contact surface between the rectangular opening 311 and the transition portion 51 is a plane, it is possible to prevent the rectangular opening 311 and the transition portion 51 from being broken at the contact position.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A PVA fiber cement board, characterized in that: It includes a female plate, a male plate and an intermediate plate, wherein the female plate and the male plate fixing clamps are arranged on both sides of the intermediate plate; A plurality of grooves are formed on the middle plate, the grooves are of a structure with narrow groove openings and wide groove bottoms, and the groove openings of two adjacent grooves face the negative plate and the positive plate respectively; A sound insulation board is arranged inside the groove, and the projections of two adjacent sound insulation boards in a direction perpendicular to the surface of the negative plate overlap.
2. A PVA fiber cement board according to claim 1, characterized in that: The sound insulation board is made of sound insulation cotton material.
3. A PVA fiber cement board according to claim 1, characterized in that: The sound insulation board is inserted into the groove in an interference fit manner.
4. The PVA fiber cement board according to claim 1, characterized in that: Bumps are fixedly arranged on two mutually adjacent plate surfaces of the negative plate and the positive plate, and the bumps are clamped in the inside of the groove.
5. A PVA fiber cement board according to claim 4, characterized in that: An accommodating groove is formed between the protrusion and the groove bottom of the groove, and the sound insulation board is arranged inside the accommodating groove.
6. The PVA fiber cement board according to claim 1, characterized in that: The groove is formed by a groove bottom plate and two groove side plates, and the angle between the groove side plates and the groove bottom plate is less than 90°.
7. The PVA fiber cement board according to claim 1, characterized in that: Both ends of the female plate are fixedly provided with flanges, and the flanges are in contact with the middle plate.
8. The PVA fiber cement board according to claim 4, characterized in that: The groove comprises a rectangular opening and a groove body; The protrusion includes a transition portion matching the rectangular opening and a locking portion matching the groove body.