PVC foam board convenient to splice

Abstract

The PVC foam board convenient to splice comprises the first PVC foam board body, the second PVC foam board body and the connecting strips, and high efficiency of splicing and high-strength connection after splicing are achieved. Firstly, during splicing, the first PVC foaming board and the second PVC foaming board are matched through the inserting columns and the inserting holes, preliminary mechanical locking is provided, and stable combination between the first PVC foaming board and the second PVC foaming board is guaranteed. And then, due to the design of the clamping grooves and the limiting grooves, the connecting strips can be accurately inserted, the splicing stability and firmness are guaranteed through close fit of the pressing pieces and the limiting grooves, then the situation that the inserting columns and the inserting holes are disengaged due to external force is avoided, and meanwhile the impact resistance and durability after splicing are enhanced. Therefore, the utility model provides the PVC foam board which is simple and convenient to splice, firm to splice and strong in durability after being spliced, and can meet the requirements of modern engineering on high-efficiency and high-quality materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC foamed board technical field, concretely is a kind of PVC foamed board convenient to splice. BACKGROUND

[0002] In recent years, with the requirement of material lightweight, high strength and good decorative effect in the field of building decoration, exhibition, advertising sign and so on increasing, PVC foamed board is widely used because of its light weight, good processability, corrosion resistance, waterproof and other advantages. However, the PVC foamed board widely used in the market has many deficiencies in splicing and overall installation process. The traditional PVC foamed board often relies on external adhesive or mechanical fixing piece for splicing, which not only increases the construction difficulty and installation time, but also easily leads to problems such as loosening, obvious gap and poor impact resistance at splicing place, thereby affecting the stability and appearance of the whole product. Therefore, developing a kind of PVC foamed board which is convenient to splice and has high splicing strength has become an important direction to improve the product performance and appearance of PVC foamed board. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of PVC foamed board convenient to splice, solve the construction difficulty big, splicing place easy to appear loosening and gap, poor impact resistance and other problems in the prior art when PVC foamed board is spliced and overall installed.

[0004] A kind of PVC foamed board convenient to splice, it includes first PVC foamed board, second PVC foamed board and connecting strip, at least one side of the first PVC foamed board is provided with a predetermined number of insertion columns and a predetermined number of insertion holes, at least one side of the second PVC foamed board is provided with insertion hole and insertion column matched with insertion column and insertion hole provided on the first PVC foamed board, the side of the first PVC foamed board and the second PVC foamed board flush when splicing is recessed to the opposite side with a clamping groove, the connecting strip is arranged at the clamping groove, the side of the clamping groove away from its opening is recessed to a limiting slot, the distance between the length direction of the two side walls at the opening of the limiting slot is less than the distance between the length direction of the two side walls in the middle of the limiting slot, a plurality of pressure pieces with elliptical cross section are arranged on the connecting strip, the middle part of the pressure piece is provided with a through hole.

[0005] Preferably, the pressure piece is a sheet-like elliptical pressure piece, and the middle part of the sheet-like elliptical pressure piece is provided with an elliptical through hole.

[0006] Preferably, the inner side wall of the insertion hole is outwardly recessed with a receiving groove, the insertion column is recessed with a mounting groove, and the mounting groove is provided with a rubber ring.

[0007] Preferably, the end of the insertion column is provided in a semispherical shape, a conical shape or a circular truncated cone shape.

[0008] Preferably, the clamping groove is a long strip square clamping groove, and the connecting strip is a long strip square connecting strip.

[0009] Preferably, the first PVC foam board and the second PVC foam board are both square, and the length of at least one side of the first PVC foam board is equal to the length of one side of the second PVC foam board.

[0010] Preferably, the first PVC foam board and the second PVC foam board are both square, and the length of at least one side of the first PVC foam board is equal to the length of one side of the second PVC foam board.

[0011] Preferably, the first PVC foam board and the second PVC foam board are both square, and the length of at least one side of the first PVC foam board is equal to the length of one side of the second PVC foam board.

[0012] Compared with the prior art, the PVC foam board has the following beneficial effects:

[0013] The PVC foam board is convenient to splice, efficient and high-strength connected after splicing. Firstly, the cooperation of the insertion column and the insertion hole between the first PVC foam board and the second PVC foam board provides preliminary mechanical locking, ensuring the stable combination between the first PVC foam board and the second PVC foam board. Then, the design of the clamping groove and the limiting groove enables the connecting strip to be accurately inserted, and the close cooperation of the pressing piece and the limiting groove ensures the stability and firmness of splicing, thereby avoiding the insertion column and the insertion hole from being pulled out by external force, and also enhancing the impact resistance and durability after splicing. Therefore, the PVC foam board is simple and firm to splice, and durable after splicing, and can meet the requirements of modern engineering for high efficiency and high quality materials. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 FIG. 1 is a schematic view of a horizontal cross-section structure of the PVC foam board convenient to splice according to the present application;

[0015] Fig. 2 FIG. 2 is a schematic view of the structure of the connecting strip convenient to splice according to the present application;

[0016] Fig. 3 FIG. 3 is a schematic view of a vertical cross-section structure of the PVC foam board convenient to splice according to the present application.

[0017] Wherein:

[0018] 10 - first PVC foam board, 20 - second PVC foam board, 30 - connecting strip, 40 - insertion hole, 50 - insertion column, 60 - clamping groove, 70 - limiting groove, 80 - waterproof coating layer, 90 - wear-resistant layer, 31 - pressure piece, 32 - through hole, 41 - containing groove, 42 - rubber ring. DETAILED DESCRIPTION

[0019] The embodiments described below are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] Referring to Figs. 1-3 The embodiment provides a PVC foam board convenient to splice, which comprises a first PVC foam board 10, a second PVC foam board 20 and a connecting strip 30, at least one side of the first PVC foam board 10 is provided with a predetermined number of insertion columns 50 and a predetermined number of insertion holes 40, at least one side of the second PVC foam board 20 is provided with insertion holes 40 and insertion columns 50 matched with the insertion columns 50 and the insertion holes 40 provided on the first PVC foam board 10, when the first PVC foam board 10 and the second PVC foam board 20 are spliced, the flat side of the first PVC foam board 10 and the flat side of the second PVC foam board 20 are both provided with a clamping groove 60 recessed to the opposite side, the connecting strip 30 is arranged at the clamping groove 60, the clamping groove 60 is provided with a limiting groove 70 recessed to the side away from the opening, the distance between the length direction of the two side walls of the opening of the limiting groove 70 is less than the distance between the length direction of the two side walls of the middle part of the limiting groove 70, the connecting strip 30 is provided with a plurality of pressure pieces 31 with an elliptical cross section inserted and connected with the limiting groove 70, and the middle part of the pressure piece 31 is provided with a through hole 32.

[0021] Preferably, the pressing piece 31 is a sheet-shaped oval pressing piece 31, and an oval through hole 32 is arranged in the middle of the sheet-shaped oval pressing piece 31, and the limiting groove 70 is a sheet-shaped oval limiting groove 70. Due to the arrangement of the oval through hole 32, when the sheet-shaped oval pressing piece 31 is inserted into the limiting groove 70, the sheet-shaped oval pressing piece 31 will shrink towards the through hole 32 because the outer circumferential diameter of the sheet-shaped oval pressing piece 31 is larger than the opening diameter of the limiting groove 70. After the sheet-shaped oval pressing piece 31 is inserted into the through hole 32, the sheet-shaped oval pressing piece 31 will reset, so that the sheet-shaped oval pressing piece 31 is tightly buckled (expanded) into the limiting groove 70, and then the connecting piece can be tightly buckled to the clamping groove 60, so that the first PVC foam board 10 and the second PVC foam board 20 can be tightly connected and stably connected during splicing. Therefore, the connecting strip 30 not only ensures high strength and impact resistance of splicing, but also can maintain stable buckling state of the pressing piece 31 on the connecting strip 30 even when subjected to external vibration or impact during actual use, effectively preventing the boards from loosening or separating.

[0022] Preferably, the inner side wall of the insertion hole 40 is outwardly recessed with a receiving groove 41, and the insertion column 50 is recessed with a mounting groove, and the mounting groove is provided with a rubber ring 42. When the insertion column 50 is inserted into the receiving groove 41, the rubber ring 42 is expanded at the receiving groove 41. First, the expansion of the rubber ring 42 significantly improves the stability of splicing connection, so that the insertion column 50 and the receiving groove 41 can still be tightly buckled when subjected to external vibration or impact, effectively preventing loosening or separation caused by slight size deviation or assembly error. Second, this design utilizes the elastic self-adaptive characteristics of the rubber ring 42, and even if there is a certain processing tolerance during splicing, it can be automatically adjusted to ensure that the butt joint between the two boards is more uniform and dense, thereby improving the overall splicing strength and impact resistance. Third, this structure simplifies the installation process, and only needs to insert the insertion column 50 into the receiving groove 41 during installation, and the rubber ring 42 will automatically function without the need for additional tools for reinforcement, thereby reducing the construction difficulty and labor intensity.

[0023] Preferably, the end of the insertion column 50 is provided in a semispherical, conical or circular truncated conical shape. The rounded or conical end can play a good guiding role during insertion, making the insertion column 50 easier to align with the insertion hole 40 or the receiving groove 41, thereby reducing interference and jamming during assembly and ensuring a smoother installation process. At the same time, due to the gradual change design of the end shape, self-calibration can be formed at the initial stage of insertion, automatically guiding the insertion column 50 to the correct position, thereby further improving the splicing accuracy.

[0024] Preferably, the card slot 60 is a long rectangular card slot 60, the connecting strip 30 is a long rectangular connecting strip 30, and the width of the long rectangular card slot 60 is the same as the width of the long rectangular connecting strip 30. In this application, the long rectangular card slot 60 can be arranged on the top surface of the first PVC foam board 10 and the second PVC foam board 20, or on the bottom surface of the first PVC foam board 10 and the second PVC foam board 20, or on the side surface of the first PVC foam board 10 and the second PVC foam board 20, below the plug-in column 50 and the plug-in hole 40.

[0025] Preferably, the first PVC foam board 10 and the second PVC foam board 20 are both square, and the length of at least one side of the first PVC foam board 10 is equal to the length of one side of the second PVC foam board 20. The standardized square design allows the boards to be accurately aligned during splicing, reducing gaps and splicing errors caused by size deviations, thereby improving overall splicing accuracy and structural stability. Secondly, the same side length ensures the uniformity of the splicing surface, making the final product appearance more neat and beautiful, meeting the requirements of high-quality decorative materials.

[0026] Preferably, the first PVC foam board 10 and the second PVC foam board 20 are provided with a wear-resistant layer 90 on the top. The wear-resistant layer 90 can effectively enhance the surface hardness of the PVC foam board, improve its scratch resistance, impact resistance and wear resistance, so that it is not easy to appear scratches, depressions or wear during long-term use, thereby prolonging the service life. Secondly, the wear-resistant layer 90 can enhance the anti-pollution ability of the board, prevent dust, stains and chemical substances from penetrating, making it easier to clean and maintain, and reducing the later maintenance cost. The wear-resistant layer 90 of the present application can also select different materials according to different application requirements, such as high-strength polyurethane coating or nano coating, to further improve the water resistance, slip resistance, ultraviolet resistance and other properties, so that the PVC foam board can be applied to outdoor environments, humid places or high-traffic areas, such as exhibition display, floor decoration, billboards and other fields, expanding the application range of the product.

[0027] Preferably, the first PVC foam board 10 and the bottom and top of the second PVC foam board 20 are coated with a waterproof coating layer 80. The waterproof coating layer 80 of the present application is arranged at the bottom of the wear-resistant layer 90. It can comprehensively improve the waterproof and moisture-proof performance of the board, effectively prevent water penetration, and ensure that it can remain stable in a high humidity or direct contact with water environment, avoiding swelling, deformation or performance degradation due to water absorption. At the same time, the waterproof coating can also enhance the weather resistance of the board, reduce ultraviolet aging and discoloration, so that it can remain in good condition for long-term outdoor use. In addition, the coating can improve the corrosion resistance of the PVC foam board, resist the erosion of chemicals such as acid, alkali and solvent, and expand the application range, such as building exterior walls, billboards, laboratory protective plates, etc. The waterproof coating layer 80 in the present application can use polyurethane (PU) waterproof coating, acrylic waterproof coating or epoxy resin waterproof coating.

[0028] The utility model provides a kind of PVC foam board convenient to splice, realize the high efficiency of splicing and high-strength connection after splicing. Firstly, when splicing, the cooperation of inserting column 50 and inserting hole 40 between first PVC foam board 10 and second PVC foam board 20 provides preliminary mechanical locking, ensures the stable combination between first PVC foam board 10 and second PVC foam board 20. Then, the design of clamping slot 60 and limit slot 70 makes that connecting strip 30 can be accurately inserted, and by the close cooperation of pressing piece 31 and limit slot 70, the reinforcing connection of splicing is realized, the stability and firmness of splicing are guaranteed, and then the inserting column 50 and inserting hole 40 are avoided to be taken out by external force, and the impact resistance and durability after splicing are also enhanced. Therefore, the utility model provides a kind of PVC foam board, which is simple to splice, splice firm, durable after splicing, can meet the requirements of high efficiency and high quality material for modern engineering.

[0029] The above disclosed is only several preferred embodiments of the utility model, of course, cannot be limited by this to limit the right scope of the utility model, therefore, equivalent changes made according to the patent range of the utility model still belong to the range covered by the utility model.

Claims

1. A PVC foamed board for facilitating splicing, characterized by: It contains first PVC foamed board, second PVC foamed board and connecting strip, at least one side of the first PVC foamed board is provided with a predetermined number of insertion columns and a predetermined number of insertion holes, at least one side of the second PVC foamed board is provided with insertion holes and insertion columns matched with the insertion columns and insertion holes provided on the first PVC foamed board, the flat side of the first PVC foamed board and the second PVC foamed board is recessed with a clamping groove on the side opposite to it, the connecting strip is arranged at the clamping groove, the side away from the opening of the clamping groove is recessed with a limiting groove, the distance between the length direction of the two side walls at the opening of the limiting groove is less than the distance between the length direction of the two side walls in the middle of the limiting groove, a plurality of elliptical cross section pressure pieces are arranged on the connecting strip, the middle part of the pressure piece is provided with a through hole.

2. The PVC foamed board for easy assembly according to claim 1, wherein, The pressure piece is a sheet-shaped elliptical pressure piece, and the middle part of the sheet-shaped elliptical pressure piece is provided with an elliptical through hole.

3. The PVC foamed board for easy assembly according to claim 1, wherein The inner side wall of the insertion hole is outwardly recessed with a containing groove, the insertion column is recessed with a mounting groove, the mounting groove is provided with a rubber ring, and when the insertion column is inserted into the containing groove, the rubber ring is expanded and tightened at the containing groove.

4. The PVC foamed board for easy assembly according to claim 1, wherein The end of the insertion column is provided in a semispherical, conical or circular truncated cone shape.

5. The PVC foamed board for easy assembly according to claim 1, wherein The clamping groove is a long strip square clamping groove, and the connecting strip is a long strip square connecting strip.

6. The PVC foamed board for easy assembly according to claim 1, wherein The first PVC foamed board and the second PVC foamed board are square, and the length of at least one side of the first PVC foamed board is equal to the length of one side of the second PVC foamed board.

7. The PVC foamed board for easy assembly according to claim 1, wherein The top of the first PVC foamed board and the second PVC foamed board is provided with a wear-resistant layer.

8. The PVC foamed board for easy assembly according to claim 1, wherein The bottom and top of the first PVC foamed board and the second PVC foamed board are coated with a waterproof paint layer.

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