Floor drain device for electromagnetic shielding space

Abstract

The invention provides a floor drain device for an electromagnetic shielding space, which comprises a drainage pipeline, and a grate cover plate, a floor drain inner core, a panel, a sleeve, a threaded flange and a drainage pipeline which are made of a conductive material, and the grate cover plate is used for guiding water flow and filtering impurities, and is placed at the upper end of the panel; the floor drain inner core is detachably inserted into the lower end of the panel; the upper end of the sleeve is connected with the lower end of the panel; the lower end of the sleeve, the threaded flange and the drainage pipeline are sequentially connected; in a well-installed state, the threaded flange is connected with a shielding body buried underground. The implementation mode not only can meet the electromagnetic shielding effectiveness requirement, but also can solve the problems of blockage, corrosion and separation of the floor drain commonly used in the existing engineering. The cost is low, the installation is simple, and the maintenance is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic shielding, and in particular to a floor drain device used in an electromagnetic shielding space. Background Art

[0002] Due to the diverse functions of modern underground engineering projects, some projects have high requirements for electromagnetic shielding functions, so part of the tunnel space needs to be shielded with steel plates or steel mesh.

[0003] Shielding measures should be taken for holes that pass through the shielding body to ensure the reliability of the shielding performance. In actual operation, shielding doors are used for door holes, and waveguide devices, filtering devices and other measures are used for reserved pipeline holes.

[0004] For areas such as floor drains that require water drainage, there is no condition to install waveguide devices. In existing projects, honeycomb panels are often placed in the sewer pipes to play a shielding role. For some shielded rooms, this method cannot meet the electromagnetic shielding efficiency requirements at the floor drain. At the same time, it will cause water pipe blockage and component corrosion. There is a risk of component falling off after long-term flushing, which is difficult to detect without maintenance, causing certain shielding efficiency risks.

[0005] Therefore, a novel floor drain device is needed to solve the above problems. Summary of the invention

[0006] The content of the present invention is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of the present disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] Some embodiments of the present invention provide a floor drain device for an electromagnetic shielding space to solve the technical problems mentioned in the above background technology section.

[0008] The floor drain device for electromagnetic shielding space comprises a drainage pipe and a grate cover plate made of conductive material, a floor drain inner core, a panel, a sleeve, a threaded flange and a drainage pipe, wherein:

[0009] The grate cover plate is used to guide water flow and filter impurities and is placed on the upper end of the panel;

[0010] The floor drain inner core is detachably inserted into the lower end of the panel;

[0011] The upper end of the sleeve is connected to the lower end of the panel, and the lower end of the sleeve, the threaded flange and the drainage pipe are connected in sequence;

[0012] In an installed state, the threaded flange is connected to a shielding body buried underground.

[0013] Optionally, the upper surface of the grate cover plate is provided with a plurality of water-conducting lines surrounding the axis in a counterclockwise or clockwise direction.

[0014] Optionally, a plurality of water-permeable holes with diameters gradually decreasing from the outside to the inside are provided between adjacent water-conducting lines.

[0015] Optionally, the diameter of the water-permeable hole with the largest aperture is less than one third of the thickness of the grate cover plate.

[0016] Optionally, a handle is provided on the upper surface of the grate cover.

[0017] Optionally, the panel is provided with a first accommodating space and a second accommodating space which are connected to each other, the first accommodating space is used to place the grate cover plate; the floor drain inner core is threadedly connected to the second accommodating space.

[0018] Optionally, an outer ring is provided on the top of the inner core of the floor drain, and in an assembled state, the outer ring is engaged with the bottom of the first accommodating space.

[0019] Optionally, the threaded flange includes a pair of threads and a flange fixed to the middle of the pair of threads, the pair of threads are respectively connected to the sleeve and the drainage pipe; the flange is welded to the shielding body.

[0020] Optionally, the grate cover, floor drain inner core, panel and sleeve are made of stainless steel.

[0021] Optionally, the threaded flange is made of galvanized steel.

[0022] The above embodiments of the present invention have the following beneficial effects: the use of the floor drain device for electromagnetic shielding space of the present invention can not only meet the electromagnetic shielding efficiency requirements, but also solve the problems of blockage, rust and detachment of the floor drain commonly used in existing projects. At the same time, it has the advantages of low cost, simple installation and convenient maintenance.

[0023] Specifically, since the threaded flange is welded to the shielding body, the threaded flange, the sleeve, the panel and the grate cover plate form a first effective shielding protection. In addition, the threaded flange, the sleeve, the panel and the floor drain inner core can also form a second effective shielding protection, so that the electromagnetic shielding performance can be achieved.

[0024] In addition, the grate cover has the function of filtering impurities, which can effectively prevent the device from being blocked. And because the grate cover and the floor drain inner core are detachably connected to the panel, it is easy to clean and maintain and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 An exploded view of an embodiment of a floor drain device for electromagnetic shielding space of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the grate cover plate, the floor drain inner core and the panel assembled according to the present invention;

[0028] Figure 3 A cross-sectional view of an embodiment of a floor drain device for electromagnetic shielding space of the present invention;

[0029] Figure 4 It is a structural schematic diagram of an embodiment of a grate cover plate of the present invention;

[0030] Figure 5 It is a structural schematic diagram of an embodiment of the floor drain inner core drainage state of the present invention;

[0031] Figure 6 It is a structural schematic diagram of an embodiment of the threaded flange of the present invention;

[0032] Figure 7 It is a structural schematic diagram of another embodiment of the floor drain device for electromagnetic shielding space of the present invention.

[0033] Description of reference numerals:

[0034] 1. Grate cover; 11. Water-guiding pattern; 12. Water-permeable hole; 13. Handle; 2. Inner core of floor drain; 21. Outer ring; 22. Water retaining plate; 3. Metal mesh gasket; 4. Panel; 5. Casing; 6. Threaded flange; 61. Flange; 62. Matching thread; 7. Drainage pipe. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] First see Figures 1 to 3 , Figure 1 An exploded view of an embodiment of a floor drain device for electromagnetic shielding space of the present invention; Figure 2 It is a schematic diagram of the structure of the grate cover plate, the floor drain inner core and the panel assembled according to the present invention; Figure 3 FIG. 2 is a cross-sectional view of an embodiment of a floor drain device for electromagnetic shielding space of the present invention. Figure 1 and Figure 3 As shown, the floor drain device for electromagnetic shielding space includes a grate cover plate 1, a floor drain inner core 2, a metal mesh gasket 3, a panel 4, a sleeve 5, a threaded flange 6 and a drainage pipe 7.

[0040] See next Figure 4 , Figure 4 FIG. 1 is a schematic structural diagram of an embodiment of a grate cover plate of the present invention. Figure 4As shown, the grate cover plate 1 can be made of punched stainless steel plate. A plurality of water-conducting lines 11 can be arranged around the axis on the upper surface of the grate cover plate 1. The water-conducting lines 11 can be processed into a curve shape, and can present a clockwise or counterclockwise direction according to different regions, so as to guide the water flow to the middle of the grate cover plate 1.

[0041] A plurality of water-permeable holes 12 are provided between two adjacent water-conducting lines 11, and the apertures of the plurality of water-permeable holes 12 can gradually decrease as they approach the axis of the grate cover plate 1. In this way, the large-aperture water-permeable holes 12 on the periphery can allow more water to flow in, thereby improving drainage efficiency. The reduction in the aperture of the water-permeable holes 12 inward can adapt to the flow rate of the water flow, because the water flow will gradually decrease after passing through the large-aperture water-permeable holes 12 on the periphery. At the same time, the multi-aperture water-permeable holes 12 can also perform a multi-stage filtering effect on debris to prevent the floor drain device from being blocked. As an example, the maximum diameter of the above-mentioned water-permeable holes 12 can be less than one-third of the thickness of the grate cover plate 1.

[0042] Furthermore, a handle 13 may be provided at the center of the upper end surface of the grate cover plate 1 to facilitate disassembly and assembly of the grate cover plate 1 and improve work efficiency.

[0043] Re-read Figures 1 to 3 The panel 4 can be made of stainless steel, and a first accommodation space is provided at the upper end of the panel 4 for placing the grate cover 1. A second accommodation space connected to the first accommodation space is provided at the lower end of the panel 4, and an internal thread is provided on the inner wall of the second accommodation space.

[0044] See also Figure 4 And continue to read Figures 1 to 3 , Figure 4 FIG. 1 is a schematic structural diagram of an embodiment of a grate cover plate of the present invention. Figures 1 to 4 As shown, the floor drain core 2 can be a stainless steel gravity floor drain core, and the outer edge of the floor drain core 2 can be provided with an external thread, which matches the internal thread of the inner wall of the second accommodation space. In the assembled state, the floor drain core 2 can be detachably inserted into the second accommodation space through the external thread.

[0045] The top of the floor drain inner core 2 may be provided with an outer ring 21 adapted to the size of the first accommodation space. In the assembled state, the outer ring 21 engages with the bottom of the first accommodation space, which can limit the installation position of the floor drain inner core 2. Furthermore, a metal mesh gasket 3 may be placed between the outer ring 21 and the bottom of the first accommodation space to enhance the sealing performance between the floor drain inner core 2 and the panel 4.

[0046] In the drainage state, the water retaining plate 22 of the floor drain inner core 2 is as shown in FIG. Figure 4In the waterless state, the water retaining plate 22 of the floor drain inner core 2 is as shown. Figure 1 Shown closed.

[0047] The sleeve 5 can be made of stainless steel, and the upper end of the sleeve 5 is connected to the bottom of the floor drain inner core 2. Those skilled in the art can select a connection method according to actual conditions, such as plug-in, sleeve connection, threaded connection, etc. The length and diameter of the sleeve 5 can be adjusted according to actual conditions.

[0048] See next Figure 6 , Figure 6 FIG. 1 is a schematic diagram of the structure of an embodiment of the threaded flange of the present invention. Figure 6 As shown, the threaded flange 6 can be made of galvanized steel, including a thread 62 and a flange 61, and the flange 61 is fixedly sleeved on the middle of the thread 62. The upper end of the threaded flange 6 is connected to the lower end of the sleeve 5 through an external thread, and the lower end of the threaded flange 6 is threadedly connected to the drainage pipe 7 below through an external thread. The drainage pipe 7 can be made of PVC material. When the floor drain device is installed, the flange 61 is welded to the shielding body buried underground.

[0049] In actual use, since the grate cover plate 1 and the floor drain inner core 2 are detachably connected to the panel 4, it is convenient to clean, maintain and replace them.

[0050] See also Figure 7 , Figure 7 FIG. 2 is a schematic structural diagram of another embodiment of a floor drain device for electromagnetic shielding space of the present invention. Figure 7 As shown, on the ground where electromagnetic shielding is required, crushed stone or pebbles, plastic film or impermeable geotextile, waterproof concrete cushion, steel plate shield and waterproof concrete are usually laid on the bedrock in sequence. When installing the floor drain device, first lay the drainage pipe 7 according to the design requirements or relevant specifications. Cut the above-mentioned steel plate shield and reserve the installation position of the flange 61. Next, connect the threaded flange 6 to the drainage pipe 7, and firmly weld the flange 61 to the steel plate shield. Then cut the sleeve 5 of the corresponding length according to the actual situation or design requirements and complete the connection with the threaded flange 6. Finally, install the panel 4, the metal mesh gasket 3, the floor drain inner core 2 and the grate cover 1 in sequence. It should be noted that when installing the above-mentioned panel 4 and the threaded flange 6, care should be taken not to fill non-conductive materials such as cement mortar or caulking agent to ensure the integrity of the electromagnetic shielding.

[0051] It should be noted that in some oil storage rooms, when electromagnetic shielding is required, the floor drain is usually required to be 150mm-200mm above the ground, which can be met by cutting the corresponding length of the sleeve 5. In other words, the floor drain device of the present invention can be adapted to different engineering requirements by changing the length of the sleeve 5.

[0052] The floor drain device can provide effective electromagnetic shielding in waterless working conditions and water-permeable working conditions. In waterless working conditions, the water retaining plate 22 of the floor drain inner core 2 is as shown in FIG. Figure 1 As shown in the closed state. Since the flange 61 of the threaded flange 6 is welded to the steel plate shielding body, the threaded flange 6, the sleeve 5, the panel 4 and the grate cover 1 form a first effective shielding protection. Furthermore, since the water retaining plate 22 is closed, the threaded flange 6, the sleeve 5, the panel 4 and the floor drain inner core 2 form a second effective shielding protection.

[0053] In the water permeable working condition, the water retaining plate 22 of the floor drain inner core 2 is as follows: Figure 5 In the open state shown, the first effective shielding protection formed by the threaded flange 6, the sleeve 5, the panel 4 and the grate cover 1 can still play an electromagnetic shielding role.

[0054] The floor drain device for electromagnetic shielding space of the present invention can not only meet the electromagnetic shielding efficiency requirements, but also solve the problems of blockage, rust and detachment of common floor drains in existing projects. It also has the advantages of low cost, easy installation and convenient maintenance.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floor drain device for electromagnetic shielding space, characterized in that: It includes a drainage pipe and a grate cover plate made of conductive material, a floor drain core, a panel, a sleeve, a threaded flange and a drainage pipe, wherein: The grate cover plate is used to guide water flow and filter impurities and is placed on the upper end of the panel; The floor drain inner core is detachably inserted into the lower end of the panel; The upper end of the sleeve is connected to the lower end of the panel, and the lower end of the sleeve, the threaded flange and the drainage pipe are connected in sequence; In an installed state, the threaded flange is connected to a shielding body buried underground.

2. The floor drain device for electromagnetic shielding space according to claim 1, characterized in that: The upper surface of the grate cover plate is provided with a plurality of water-conducting lines surrounding the axis in a counterclockwise or clockwise direction.

3. The floor drain device for electromagnetic shielding space according to claim 2, characterized in that: A plurality of water-permeable holes with gradually decreasing apertures from outside to inside are provided between adjacent water-conducting lines.

4. The floor drain device for electromagnetic shielding space according to claim 3, characterized in that: The diameter of the water-permeable hole with the largest aperture is less than one third of the thickness of the grate cover plate.

5. The floor drain device for electromagnetic shielding space according to claim 4, characterized in that: A handle is provided on the upper surface of the grate cover plate.

6. The floor drain device for electromagnetic shielding space according to claim 1, characterized in that: The panel is provided with a first accommodating space and a second accommodating space which are connected to each other. The first accommodating space is used to place the grate cover plate. The floor drain inner core is threadedly connected to the second accommodating space.

7. The floor drain device for electromagnetic shielding space according to claim 6, characterized in that: An outer ring is arranged on the top of the inner core of the floor drain, and in an assembled state, the outer ring is engaged with the bottom of the first accommodating space.

8. The floor drain device for electromagnetic shielding space according to claim 1, characterized in that: The threaded flange comprises a pair of threads and a flange plate fixed to the middle of the pair of threads, the pair of threads are respectively connected to the sleeve and the drainage pipe; the flange plate is welded to the shielding body.

9. The floor drain device for electromagnetic shielding space according to claim 1, characterized in that: The grate cover plate, the floor drain inner core, the panel and the sleeve are made of stainless steel.

10. The floor drain device for electromagnetic shielding space according to claim 1, characterized in that: The threaded flange is made of galvanized steel.

Images