Low-heat-conductivity PVC (polyvinyl chloride) foam board

Abstract

The utility model discloses a low heat conduction PVC foam board which comprises a foam board body, an installation cavity is formed in the foam board body, an EPS board is installed in the installation cavity in a sliding mode, a sliding rod is fixedly installed on the outer wall of the EPS board through a moving groove, a sliding sleeve is installed on the outer wall of the sliding rod through a limiting mechanism in a sliding mode, and a spring is installed on the outer wall of the sliding rod. The two ends of the spring are elastically connected with the moving groove and the inner wall of the sliding sleeve correspondingly, a plug pin is fixedly installed on the outer wall of the sliding sleeve through a connecting mechanism, an insertion hole matched with the plug pin is formed in the inner wall of the installation cavity, and the front face and the back face of the foaming plate body are both coated with heat insulation coatings. According to the PVC foam board, the EPS board, the spring, the plug pin and other assemblies are arranged, the plug pin can move into the inserting hole under the driving of the spring, and therefore the EPS board can be fixedly installed, the heat insulation performance of the PVC foam board can be remarkably improved, and heat loss of the PVC foam board under the extreme temperature condition is reduced.

Description

Technical Field

[0001] This utility model relates to the field of PVC foam board technology, and in particular to a PVC foam board with low thermal conductivity. Background Technology

[0002] PVC foam board is a type of board made from polyvinyl chloride (PVC). It is environmentally friendly, water-resistant, mildew-proof, and corrosion-resistant. It usually has a honeycomb mesh structure in its cross-section, so it is also known as vacuum forming film, decorative film, or adhesive film.

[0003] PVC foam boards are widely used in many industries such as building materials, packaging, and pharmaceuticals, including passenger cars, core layers of car bodies, interior decoration panels, exterior wall panels, interior decoration panels, and partitions in offices, residences, and public buildings. Although existing PVC foam boards perform well in many aspects, they still face some challenges in terms of thermal conductivity. Specifically, the thermal conductivity of existing PVC foam boards is relatively high, making it difficult to maintain stable thermal insulation performance under extreme temperature conditions. This limits their application in some specific fields (such as high-temperature workshops) to a certain extent, resulting in insufficient practicality. Therefore, it is necessary to redesign a PVC foam board with low thermal conductivity to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low thermal conductivity PVC foam board.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low thermal conductivity PVC foam board includes a foam board body with an internal mounting cavity. An EPS board is slidably mounted inside the mounting cavity. A sliding rod is fixedly mounted on the outer wall of the EPS board via a moving groove. A sliding sleeve is slidably mounted on the outer wall of the sliding rod via a limiting mechanism. A spring is mounted on the outer wall of the sliding rod, with its two ends elastically connected to the moving groove and the inner wall of the sliding sleeve, respectively. A pin is fixedly mounted on the outer wall of the sliding sleeve via a connecting mechanism. An insertion hole for engaging the pin is provided on the inner wall of the mounting cavity. Both sides of the foam board body are coated with a heat-insulating coating, and both surfaces of the heat-insulating coating are coated with a nano-silica coating.

[0007] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the moving groove, the limiting rod sliding through the sliding sleeve.

[0008] Preferably, the connecting mechanism includes a connecting plate fixedly installed on the outer wall of the sliding sleeve, and the pin is fixedly installed on the outer wall of the connecting plate.

[0009] Preferably, the outer wall of the foam board body is provided with an installation groove, and two metal frames are slidably installed inside the installation groove.

[0010] Preferably, one of the metal frames has connecting blocks fixedly installed at both ends, and the other metal frame has connecting grooves at both ends that mate with the connecting blocks.

[0011] Preferably, screws are installed through the outer walls of both ends of the other metal frame via threaded rotation, and threaded holes that mate with the screws are opened on the outer walls of both connecting blocks.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up EPS boards, springs, and pins, the pins can be moved into the insertion holes under the action of the springs, thereby achieving the fixed installation of EPS boards. This can significantly improve the thermal insulation performance of PVC foam boards and reduce their heat loss under extreme temperature conditions.

[0014] 2. By setting components such as metal frames, connecting blocks, and screws, the two metal frames can be connected through the cooperation of the connecting blocks and connecting grooves, and fixed by screws. This increases the strength of the edge of the foam board body, thereby preventing it from being squeezed, deformed, or damaged. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a low thermal conductivity PVC foam board proposed in this utility model;

[0016] Figure 2 This is a top view of a low thermal conductivity PVC foam board proposed in this utility model.

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure;

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Foam board body, 2. EPS board, 3. Slide rod, 4. Limiting rod, 5. Slide sleeve, 6. Spring, 7. Connecting plate, 8. Pin, 9. Metal frame, 10. Connecting block, 11. Connecting groove, 12. Screw, 13. Heat insulation coating, 14. Nano silicon oxide coating. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A low thermal conductivity PVC foam board includes a foam board body 1, an installation cavity is provided inside the foam board body 1, an EPS board 2 is slidably installed inside the installation cavity, a slide rod 3 is fixedly installed on the outer wall of the EPS board 2 through a moving groove, and a sliding sleeve 5 is slidably installed on the outer wall of the slide rod 3 through a limiting mechanism. The limiting mechanism includes a limiting rod 4 fixedly installed inside the moving groove, the limiting rod 4 slidably passes through the sliding sleeve 5, and the limiting rod 4 can limit the sliding sleeve 5 so that the sliding sleeve 5 can only move axially along the outer wall of the slide rod 3.

[0023] A spring 6 is installed on the outer wall of the slide rod 3. The two ends of the spring 6 are elastically connected to the moving groove and the inner wall of the slide sleeve 5, respectively. A pin 8 is fixedly installed on the outer wall of the slide sleeve 5 through a connecting mechanism. The connecting mechanism includes a connecting plate 7 fixedly installed on the outer wall of the slide sleeve 5, and the pin 8 is fixedly installed on the outer wall of the connecting plate 7.

[0024] The inner wall of the mounting cavity has a socket hole that mates with the pin 8. The outer wall of the foam board body 1 has a mounting groove. Two metal frames 9 are slidably installed inside the mounting groove. One metal frame 9 has a connecting block 10 fixedly installed at both ends. The other metal frame 9 has a connecting groove 11 at both ends that mates with the connecting block 10. The outer walls of the other metal frame 9 are threadedly installed with screws 12 through the threads. The outer walls of the two connecting blocks 10 have threaded holes that mate with the screws 12. Both sides of the foam board body 1 are coated with a heat insulation coating 13. Both sides of the heat insulation coating 13 are coated with a nano-silica coating 14.

[0025] When this utility model is used, the EPS board 2 can be slidably installed inside the mounting cavity. During this process, the pin 8 can be pressed inward, and the sliding sleeve 5 can squeeze the spring 6. When the EPS board 2 is fully inserted into the mounting cavity, the pin 8 can be aligned with the insertion hole. At this time, the spring 6 can release elastic potential energy to drive the sliding sleeve 5 to move. The sliding sleeve 5 can slide on the outer wall of the sliding rod 3 through the cooperation of the limiting rod 4. Thus, the sliding sleeve 5 can drive the pin 8 to move into the insertion hole through the connecting plate 7, thereby realizing the fixed installation of the EPS board 2 inside the mounting cavity. Since the internal structure of the EPS board 2 has many tiny pores, these pores form a good heat insulation layer, which can effectively prevent the transfer of heat, thereby reducing the thermal conductivity of the foam board body 1.

[0026] When it is necessary to strengthen the edge strength of the foam board body 1, the two metal frames 9 can be inserted into the mounting grooves from both sides, and the opposite connecting blocks 10 can be inserted into the connecting grooves 11. This connects the two metal frames 9. Then, the screws 12 can be turned to move into the threads. Through the locking of the threads, the connecting blocks 10 can be fixed inside the connecting grooves 11, thus achieving a fixed connection between the two metal frames 9. Through the cooperation of the two metal frames 9, the edge strength of the foam board body 1 can be increased, preventing it from being squeezed, deformed, or damaged. During the installation and use of the foam board body 1, the heat insulation coating 13, through special materials and technologies, can effectively reduce heat transfer, maintaining the temperature difference between the inside and outside of the coating, thereby achieving the heat insulation effect. The nano-silica coating 14 has multiple functions such as enhanced hardness, UV resistance, and weather resistance, which can increase the strength of the front and back sides of the foam board body 1.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low thermal conductivity PVC foam board, comprising a foam board body (1), characterized in that, The foam board body (1) has an installation cavity inside, and an EPS board (2) is slidably installed inside the installation cavity. A slide rod (3) is fixedly installed on the outer wall of the EPS board (2) through a moving groove. A sliding sleeve (5) is slidably installed on the outer wall of the slide rod (3) through a limiting mechanism. A spring (6) is installed on the outer wall of the slide rod (3). The two ends of the spring (6) are elastically connected to the moving groove and the inner wall of the sliding sleeve (5) respectively. A pin (8) is fixedly installed on the outer wall of the sliding sleeve (5) through a connecting mechanism. An insertion hole that cooperates with the pin (8) is opened on the inner wall of the installation cavity. Both sides of the foam board body (1) are coated with a heat insulation coating (13), and both sides of the heat insulation coating (13) are coated with a nano-silica coating (14).

2. The low thermal conductivity PVC foam board according to claim 1, characterized in that, The limiting mechanism includes a limiting rod (4) fixedly installed inside the moving groove, and the limiting rod (4) slides through the sliding sleeve (5).

3. The low thermal conductivity PVC foam board according to claim 2, characterized in that, The connecting mechanism includes a connecting plate (7) fixedly installed on the outer wall of the sliding sleeve (5), and the pin (8) fixedly installed on the outer wall of the connecting plate (7).

4. The low thermal conductivity PVC foam board according to claim 3, characterized in that, The outer wall of the foam board body (1) is provided with an installation groove, and two metal frames (9) are slidably installed inside the installation groove.

5. A low thermal conductivity PVC foam board according to claim 4, characterized in that, One of the metal frames (9) has a connecting block (10) fixedly installed at both ends, and the other metal frame (9) has a connecting groove (11) at both ends that mates with the connecting block (10).

6. The low thermal conductivity PVC foam board according to claim 5, characterized in that, The outer walls of the other metal frame (9) are each fitted with screws (12) through the threaded rotation, and the outer walls of the two connecting blocks (10) are provided with threaded holes that cooperate with the screws (12).

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