High-rigidity low-density PVC (polyvinyl chloride) foam board

Abstract

The high-rigidity low-density PVC foaming board comprises a PVC foaming board piece, a frame body and a sound insulation piece, in the scheme, the structure of the PVC foaming board is improved, a connecting board is arranged on the inner wall of a frame opening in the bottom of the frame body, a locking piece on the connecting board is embedded into an annular groove of the sound insulation piece to form locking, and the locking piece is made of elastic materials such as PC materials. The first groove is formed to reserve movable gaps for opposite movement on the two sides, the locking piece and the annular groove can be conveniently connected in an inserted mode when the sound insulation piece is installed, the structure is simplified, and the sound insulation piece is fixed more easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to foamed sheet technical field, concretely relates to high rigid low density PVC foamed sheet. BACKGROUND

[0002] PVC foamed sheet is widely used in the field of building, decoration and the like, taking the building field as an example, the conventional PVC foamed sheet part is improved to improve the sound insulation effect, and the sound insulation part is arranged in the frame, such as filling the sound insulation material in the annular groove of the support frame to form the sound insulation part, but the fixing of the support frame in the frame opening is more cumbersome, and a plurality of springs are needed to cooperate with the elastic fixing support frame such as the push block, so that the installation is more troublesome, and improvement is needed. UTILITY MODEL CONTENT

[0003] To solve the above at least one technical defect, the utility model provides the following technical scheme:

[0004] The application discloses high rigid low density PVC foamed sheet, including PVC foamed sheet part, frame, sound insulation part, the frame of the frame is provided with sound insulation part and the frame opening of frame is provided with PVC foamed sheet part, the bottom frame opening inner wall of frame is provided with connecting plate, the connecting plate is provided with elastic lock piece, the first end of lock piece is arc shape and is formed with groove one along the axial direction from the first end, the sound insulation part includes the support frame with a plurality of annular grooves and the sound insulation material filled in part annular groove, and the lock piece is embedded in the annular groove on the side.

[0005] The structure of the PVC foamed sheet is improved in the scheme, the connecting plate is arranged at the bottom frame opening inner wall of the frame, the lock piece on the connecting plate is embedded in the annular groove of the sound insulation part to form locking, the lock piece is formed of elastic material, such as PC material, the groove one is formed to reserve the moving clearance on both sides, the lock piece is conveniently inserted with the annular groove during the installation of the sound insulation part, which is helpful to simplify the structure and make the fixation of the sound insulation part simpler.

[0006] Further, a plurality of grooves two are arranged at the end face of the frame opening, the PVC foamed sheet part is provided with convex bead one, and the convex bead one is embedded in the groove two to fix the PVC foamed sheet part and the frame, in the process of pressing and fixing, the convex bead one at the PVC foamed sheet part is embedded in the groove two to be integrated, which is convenient for assembly and forming.

[0007] Further, a plurality of grooves two are arranged at the bottom surface of the connecting plate, the convex bead one at the PVC foamed sheet part is embedded in the groove two, and the increase of the number of grooves two is helpful to improve the connecting strength.

[0008] Further, the connecting plate and the frame are integrally formed, which is convenient for forming.

[0009] Further, the PVC foamed sheet part is provided with a reinforcing layer, which is helpful to improve the rigidity and has higher structural strength.

[0010] Further, the PVC foamed plate member sequentially comprises a PVC foamed base plate, a reinforcing layer and a fireproof layer from bottom to top, convex ridges two are arranged at the top surface and the bottom surface of the reinforcing layer and are embedded in the corresponding grooves of the reinforcing layer and the fireproof layer, and the convex ridges two are embedded in the grooves during the pressing process to fix the reinforcing layer, the fireproof layer and the PVC foamed base plate as a whole, thereby facilitating assembly and molding.

[0011] Compared with the prior art, the PVC foamed plate has the advantages that:

[0012] 1、The PVC foamed plate has a simple structure and facilitates installation of the sound insulation member. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a structural schematic diagram of the high-rigidity low-density PVC foamed plate in Embodiment 1;

[0015] Figure 2 is a structural schematic diagram of a support frame;

[0016] Figure 3 is a sectional structural schematic diagram of a PVC foamed plate member;

[0017] Among them, the reference signs are:

[0018] 1, frame body; 2, PVC foamed plate member; 3, sound insulation member; 4, locking member; 10, convex ridge one; 11, connecting plate; 21, PVC foamed base plate; 22, fireproof layer; 23, reinforcing layer; 24, weight-reducing hole; 25, convex ridge two; 31, support frame; 32, sound insulation material; 33, ring groove; 41, groove one. DETAILED DESCRIPTION

[0019] The present application will be further described below in combination with the drawings and specific embodiments.

[0020] Embodiment 1

[0021] As Figure 1 , Figure 2 , Figure 3As shown, the high-rigidity and low-density PVC foam board in this example comprises a PVC foam board piece 2, a frame 1, and a sound insulation piece 3. The frame 1 is in the shape of a rectangle as commonly seen. The sound insulation piece 3 is arranged in the frame of the frame 1. The PVC foam board piece 2 is installed at the frame opening of the frame 1. In this example, the PVC foam board piece 2 is of the type with a reinforcing layer. The reinforcing layer is, for example, a metal plate, and the purpose is to improve the strength.

[0022] In this example, the fixing structure of the sound insulation piece in the frame is improved. Specifically, a connecting plate 11 is formed and connected at the inner wall of the bottom frame opening of the frame 1 along the horizontal direction. A lock piece 4 with elasticity is fixed on the connecting plate 11. The lock piece 4 is, for example, in the shape of a column. The first end portion of the lock piece 4 is in the shape of a circular arc, and a groove one 41 is formed in the axial direction from the end face of the first end portion. The two ends of the groove one 41 extend to the opposite peripheral walls of the column of the lock piece 4. The purpose of the groove one 41 is to reserve a movable gap.

[0023] The sound insulation piece 3 comprises a support frame 31 with a plurality of ring grooves 33 and a sound insulation material 32 filled in part of the ring grooves, such as Figure 1 、 Figure 2 As shown, the support frame 31 is arranged with a plurality of ring grooves 33 at intervals. The predetermined ring grooves at the side are left empty. The remaining ring grooves are filled with the sound insulation material 32, such as foam or sponge. When the support frame 31 is placed into the frame opening of the frame 1, the bottom surface at the side of the support frame 31 abuts against the connecting plate 11. The ring groove 33 at the side is fitted with the lock piece 4. During the fitting process, the two sides of the first end portion groove one of the lock piece are close to each other to facilitate the fitting of the ring groove. The support frame is relatively fixed with the frame through interference fit.

[0024] In this example, the PVC foam board piece 2 comprises, from bottom to top, a PVC foam substrate 21, a reinforcing layer 23, and a fireproof layer 22. The top surface and the bottom surface of the reinforcing layer 23 are arranged with protruding ridges two 25 at intervals. Grooves are formed on the corresponding surfaces of the fireproof layer 22 and the PVC foam substrate 21. After the PVC foam substrate, the reinforcing layer, and the fireproof layer are arranged and stacked, they are pressed and fixed. The protruding ridges two are embedded in the grooves of the corresponding reinforcing layer and fireproof layer to fix the reinforcing layer, the fireproof layer, and the PVC foam substrate as a whole. In addition, weight-reducing holes 24 can also be formed on the reinforcing layer 23 at intervals, that is, grooves or through holes are formed on the reinforcing layer at intervals to reduce the weight.

[0025] To facilitate the installation of the PVC foam board piece at the frame opening, a plurality of grooves two are formed on the end surface of the frame opening of the frame 1 in this example. Protruding ridges one 10 are formed on the surface of the PVC foam substrate 21 of the PVC foam board piece 2. The protruding ridges one are embedded in the grooves two to fix the PVC foam board piece with the frame.

[0026] In addition, a plurality of recesses two are also formed at the bottom surface of the connecting plate 11, and a convex ridge one is correspondingly formed at the PVC foamed plate part, so that the convex ridge one is embedded in the recesses two to form fixation. The PVC foamed plate part at the bottom end frame opening can be outwardly convex in the middle, and the outwardly convex part is clamped into the opening between the connecting plates 11, so as to further improve the stability of the connection.

[0027] The preferred embodiments of the present application have been described above, but the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements shall also be considered as falling within the protection scope of the present application.

Claims

1. A high-rigidity, low-density PVC foam board, comprising a PVC foam board, a frame, and a sound insulation member, wherein the sound insulation member is arranged inside the frame and the PVC foam board is arranged at the frame opening of the frame, characterized in that: A connecting plate is provided at the inner wall of the bottom frame opening of the frame body, and an elastic locking piece is provided on the connecting plate. The head end of the locking piece is arc-shaped and a groove is formed axially from the head end. The sound insulation piece includes a supporting frame with a plurality of annular grooves and sound insulation material filled in some of the annular grooves. The locking piece is embedded in the annular groove on the side.

2. The high-rigidity, low-density PVC foam board according to claim 1, characterized in that: A plurality of grooves 2 are arranged at the end surface of the frame opening of the frame body, and the PVC foam board has ribs 1, and the ribs 1 are embedded in the grooves 2 to fix the PVC foam board to the frame body.

3. The high-rigidity, low-density PVC foam board according to claim 2, characterized in that: A plurality of grooves 2 are also provided on the bottom surface of the connecting plate, and the convex ribs 1 on the PVC foam plate are embedded in the grooves 2.

4. The high-rigidity, low-density PVC foam board according to claim 1, wherein: The connecting plate and the frame are integrally formed.

5. The high-rigidity, low-density PVC foam board according to claim 1, characterized in that: The PVC foam board is provided with a reinforcement layer.

6. The high-rigidity low-density PVC foam board according to claim 5, characterized in that: The PVC foam board comprises a PVC foam substrate, a reinforcement layer and a fireproof layer from bottom to top. Two convex ribs are arranged at intervals on the top and bottom surfaces of the reinforcement layer and are embedded in the grooves corresponding to the reinforcement layer and the fireproof layer.

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