Composite anti-static walkway plate

Abstract

The utility model provides a composite type anti-static walkway plate which comprises a wedge structure, and the wedge structure comprises a base and a four-edge pointed cone arranged on the base; a first installation cavity is formed in the supporting structure, one end of the four-edge pointed cone is arranged in the first installation cavity, a second installation cavity is formed in the face, away from the four-edge pointed cone, of the supporting structure, a plurality of supporting blocks are arranged in the second installation cavity, and through holes are formed in the portions, around each supporting block, of the second installation cavity. The net-shaped structure is arranged in the second mounting cavity, a fixing opening is formed in the net-shaped structure, and the fixing opening is correspondingly connected with the supporting block in an inserted mode; probes are arranged on the periphery of the fixing opening, the probes are matched with the through holes in an inserted mode, and the probes penetrate through the through holes and make contact with the tops of the correspondingly-arranged four-edge pointed cones. According to the utility model, the netlike structure avoids the generation of static electricity, and avoids the influence of the wave-absorbing performance of the wedge structure; and the probes penetrate through the through holes and are in contact with the tops of the correspondingly arranged four-edge pointed cones, so that the mounting process is simplified on the premise of ensuring the stability of the walkway plate during walking.

Description

Technical Field

[0001] This utility model belongs to the field of microwave absorbing materials technology, specifically relating to a composite anti-static walkway panel. Background Technology

[0002] Currently, in microwave anechoic chambers or fully anechoic chambers, to improve the absorption performance of materials, the shape of the absorbing material is usually designed as a square pyramid (wedge). To facilitate the access of experimental personnel, a non-absorbing / transparent / insulating foam or sponge flat walkway is usually used to cover the wedge-shaped absorbing material. However, the volume conductivity and surface conductivity of insulating materials are extremely low, typically around 10. -12 S / m to 10 -17 With a voltage S / m or even lower, friction between personnel and the walkway panels can cause static charge to accumulate between the insulating walkway panels, resulting in electrostatic discharge and damaging a large number of electronic devices in the anechoic chamber laboratory. Alternatively, in microwave anechoic chambers or full electromagnetic anechoic chambers, metamaterials or multi-layered absorbing plate structures can be used as walkway panels, but the absorption performance of such structures is often very limited and cannot meet the requirements of high-performance anechoic chambers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a composite anti-static walkway panel. In the 1GHz and above frequency band, the absorption rate performance is almost equivalent to that of traditional walkway panel covering wave-absorbing materials, while avoiding the accumulation of static charge on the walkway panel surface and preventing economic losses to electronic equipment and system facilities caused by electrostatic discharge.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A composite anti-static walkway panel, wherein the composite anti-static walkway panel comprises:

[0006] A wedge structure, the wedge structure comprising a base and a plurality of square pyramids disposed on the base;

[0007] A support structure is provided, wherein a first mounting cavity is formed within the support structure, one end of the four-sided pyramid is disposed within the first mounting cavity, and a second mounting cavity is disposed on the side of the support structure away from the four-sided pyramid. Multiple support blocks are disposed within the second mounting cavity, and through holes are provided in the second mounting cavity around each support block.

[0008] A mesh structure is provided in the second mounting cavity. The mesh structure has multiple spaced fixing ports, the number of which is the same as the number of support blocks and they are inserted one by one. A probe is provided around each fixing port at the position of the corresponding through hole. The probe is inserted and engaged with the corresponding through hole. The probe passes through the through hole and contacts the top of the corresponding four-sided pyramid.

[0009] Preferably, in the composite antistatic walkway plate, multiple etching grooves are provided in the second mounting cavity along both the length and width directions, and a support block is formed between adjacent etching grooves. Through holes are provided at the four corners of the outer periphery of the support block.

[0010] Preferably, in the composite antistatic walkway panel, the supporting block is in the shape of a cube or cuboid.

[0011] Preferably, in the composite antistatic walkway panel, the probe has a diameter of 5~25mm and a length of 2~500mm.

[0012] Preferably, in the composite antistatic walkway panel, the supporting structure is made of polypropylene.

[0013] Preferably, in the composite antistatic walkway panel, the four-sided pyramid is cone-shaped, and the base and the four-sided pyramid are integrally formed or combined.

[0014] The beneficial effects of this utility model are:

[0015] This utility model's composite anti-static walkway panel uses a mesh structure to avoid the generation of static electricity and to avoid the influence of the wedge structure on the wave absorption performance. The probe and through hole work together, with the probe penetrating the through hole and contacting the top of the corresponding four-sided pyramid. This simplifies the installation process while ensuring the stability of the walkway panel during walking. The size of the fixing opening of the mesh structure and the structural dimensions of the wave-absorbing material can be freely adjusted, making it suitable for a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the composite anti-static walkway panel of this utility model.

[0017] Figure 2 This is a front view of the composite anti-static walkway panel of this utility model.

[0018] Figure 3 This is a left view of the composite anti-static walkway panel of this utility model.

[0019] Figure 4 This is a three-dimensional view of the composite anti-static walkway panel of this utility model from another perspective.

[0020] Figure 5 This is a schematic diagram of the wedge structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the support structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the mesh structure of this utility model.

[0023] Figure 8 The diagram shows a comparison of the wave absorption performance of the composite antistatic walkway panel of Example 1 and the walkway panels of Comparative Examples 1 and 2. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "inner" and "outer", "upper" and "lower", "front" and "back" is usually based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] Example 1

[0027] like Figures 1-7 A composite anti-static walkway panel, the composite anti-static walkway panel comprising:

[0028] The wedge structure 1 includes a base 11 and a plurality of four-sided pyramids 12 disposed on the base 11;

[0029] The support structure 2 has a first mounting cavity formed therein. One end of the four-sided pyramid 12 is disposed in the first mounting cavity. A second mounting cavity is disposed on the side of the support structure 2 away from the four-sided pyramid 12. A plurality of support blocks 21 are disposed in the second mounting cavity. Each support block 21 has a through hole 22 in the second mounting cavity around it.

[0030] A mesh structure 3 is disposed within the second mounting cavity. The mesh structure 3 has multiple spaced fixing ports 31, the number of which is the same as the number of support blocks 21 and they are inserted into each other. A probe 32 is provided around each fixing port 31 at a position corresponding to a through hole 22. The probe 32 is inserted into and cooperates with the through hole 22 it is provided with, and the probe 32 penetrates the through hole 22 and contacts the top of the corresponding four-sided pyramid 12.

[0031] Multiple etching grooves are provided along the length and width of the second mounting cavity, and a support block 21 is formed between adjacent etching grooves. Through holes 22 are provided at the four corners of the outer periphery of the support block 21. The support block 21 is cube-shaped or cuboid. The diameter of the probe 32 is 5~25mm and the length is 2~500mm. The material of the support structure 2 is polypropylene. The shape of the four-sided pyramid 12 is conical. The base 11 and the four-sided pyramid 12 are integrally formed or combined. When combined, the base 11 is provided with a groove and the four-sided pyramid 12 is provided with a protrusion at the corresponding position of the groove, or the base 11 is provided with a protrusion and the four-sided pyramid 12 is provided with a groove at the corresponding position of the protrusion. The protrusion and the groove are interlocked.

[0032] The composite anti-static walkway structure of this invention, in the 1GHz and above frequency band, has an absorption rate performance almost equivalent to that of traditional walkway cover absorbing materials, while avoiding the accumulation of static charge on the walkway surface and preventing economic losses to electronic equipment and system facilities caused by electrostatic discharge.

[0033] The wedge structure 1 is a rigid polypropylene (EPP) foam wedge structure made of carbon powder doping. It is a conductive material and its main function is to absorb electromagnetic waves. The support structure 2 is provided with a first mounting cavity, which is used for the installation and fixation of the support structure 2.

[0034] Support structure 2 is made of ordinary foamed polypropylene material, which is both wave-transparent and insulating, and serves as a fixed support. The interior is a hollow structure to reduce the overall weight and interference with electromagnetic waves. The second mounting cavity above it is equipped with a U-shaped etching groove and a circular through hole.

[0035] Network structure 3 is made of rigid polypropylene foam structure with a lightly mixed carbon nanotube (CNT) / graphene dispersion, and its surface resistivity is approximately 10 Ω·cm. 8 The material has a complex permittivity of approximately 1.4 + 0.45i Ω·m and is an antistatic conductor. It is placed in the second mounting cavity above the support structure 2 for fixation. Cylindrical probes 32 are provided around the fixing port 31 corresponding to the positions of the through holes 22, which are used to connect with the top of the four-sided pyramid 12 to achieve grounding connection, without the need to install grounding wires or metal through holes at the edge positions.

[0036] Comparative Example 1

[0037] A walkway slab includes a wedge structure 1, the wedge structure 1 including a base 11 and a plurality of four-sided pyramids 12 disposed on the base 11.

[0038] Comparative Example 2

[0039] A composite antistatic walkway panel includes a wedge structure 1, wherein the wedge structure 1 includes a base 11 and a plurality of four-sided pyramids 12 disposed on the base 11; a polypropylene plate is disposed at the top of the four-sided pyramids 12.

[0040] Figure 8 This is a comparison chart showing the wave absorption performance of the composite antistatic walkway panel of Example 1 and the walkway panels of Comparative Examples 1 and 2. Figure 8 It can be concluded that the upper mesh structure 3 minimizes the impact of the microwave absorption performance of the microwave absorbing material in the lower wedge structure 1. Compared with Comparative Example 1 (single microwave absorbing material), Comparative Example 2 (microwave absorbing material + traditional polypropylene foam walkway board) has an average performance loss of about 4dB (10%) in reflectivity performance. Compared with Comparative Example 1, Example 1 has a reflectivity performance loss of about 5dB (12%). Compared with Comparative Example 2, which is currently the mainstream product on the market, the performance is basically the same (97%). This achieves that, under the premise of antistatic properties, there is basically no additional impact on its normal use in the dark room.

[0041] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A composite antistatic walkway panel, characterized in that, The composite antistatic walkway panel includes: The wedge structure (1) includes a base (11) and a plurality of four-sided pyramids (12) disposed on the base (11). A support structure (2) is provided, wherein a first mounting cavity is formed in the support structure (2), one end of the four-sided pyramid (12) is disposed in the first mounting cavity, and a second mounting cavity is provided on the side of the support structure (2) away from the four-sided pyramid (12). Multiple support blocks (21) are provided in the second mounting cavity, and through holes (22) are provided in the second mounting cavity around each support block (21). A mesh structure (3) is provided in the second mounting cavity. The mesh structure (3) is provided with a plurality of spaced fixing ports (31). The number of fixing ports (31) is the same as the number of support blocks (21) and they are inserted one by one. A probe (32) is provided around each fixing port (31) at the position corresponding to the through hole (22). The probe (32) and the corresponding through hole (22) are inserted and cooperated. The probe (32) penetrates the through hole (22) and contacts the top of the corresponding quadrangular pyramid (12).

2. The composite antistatic walkway panel according to claim 1, characterized in that, Multiple etching grooves are provided in the second mounting cavity along the length and width directions, and a support block (21) is formed between adjacent etching grooves. Through holes (22) are provided on the four corners of the outer periphery of the support block (21).

3. The composite antistatic walkway panel according to claim 1, characterized in that, The support block (21) is in the shape of a cube or a cuboid.

4. The composite antistatic walkway panel according to claim 1, characterized in that, The probe (32) has a diameter of 5~25mm and a length of 2~500mm.

5. The composite antistatic walkway panel according to claim 1, characterized in that, The material of the support structure (2) is polypropylene.

6. The composite antistatic walkway panel according to claim 1, characterized in that, The four-sided pyramid (12) is cone-shaped, and the base (11) and the four-sided pyramid (12) are integrally formed or combined.

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