A fireproof plate for laying cable through hole of underground powerhouse panel

Abstract

The utility model provides a kind of fireproof plate for underground powerhouse panel cabinet laying cable perforation, it is related to underground powerhouse electromechanical equipment fireproof plugging technical field, the fireproof plate includes: fireproof plate body, the fireproof plate body is rectangular plate structure;At least 12 threading holes are set on the fireproof plate body, each threading hole is fixedly embedded with PVC threading bushing, the axis of the PVC threading bushing is consistent with the thickness direction of fireproof plate body, and the both ends of the PVC threading bushing are flush with the both sides of fireproof plate body;The end of each PVC threading bushing is equipped with plugging cap, and the plugging cap is interference fit with PVC threading bushing;At least 1 wire diameter adjusting ring is fixedly arranged on the inner wall of each PVC threading bushing, and the wire diameter adjusting ring is distributed along the axial direction of PVC threading bushing interval. The fireproof plate is simple in structure, convenient to operate, can effectively solve the pain points of prior art, and is suitable for cable perforation and fireproof plugging scene of various underground powerhouse panel cabinet.

Description

Technical Field

[0001] This utility model relates to the field of fireproof sealing technology for electromechanical equipment in underground factories, and more specifically, to a fireproof board for cable perforation in the panel cabinets of underground factories. Background Technology

[0002] During the construction and operation of underground power plants, the fireproof sealing of the cable laying holes at the bottom of the control panels, as the core electrical equipment carrier, is a crucial step in ensuring equipment safety. In existing technologies, the bottom panel, which is a regular shape (rectangular or square), needs to be removed during the initial installation of the control panel to lay cables. After the equipment installation and cable laying are completed, fireproof boards or fireproof putty are used to completely seal the pre-reserved holes at the bottom to achieve fireproof isolation.

[0003] However, this method has obvious drawbacks: 1. Difficulty in later cable pulling: When facing the need for panel cabinet renovation or temporary addition of cables, it is necessary to first destroy the original fireproof sealing structure. Moreover, due to the dense cables inside the panel cabinet, the cable pulling process requires the help of external objects to pull the cables accurately, resulting in extremely low operation efficiency. 2. Significant safety hazards: If the control panel is in a live operating state, the process of breaking the seal and forcibly threading the wires can easily lead to accidental contact with live equipment, causing electrical safety accidents; 3. Poor aesthetics: After temporary cable installation, fireproof putty is usually used to seal small holes, resulting in a messy sealing structure at the bottom of the cabinet, which fails to meet the cleanliness requirements of "beautiful electromechanical equipment". 4. Waste of costs: Repeated damage and resealing require additional fireproofing materials and labor costs, which does not meet the operational requirements of cost reduction and efficiency improvement.

[0004] Therefore, there is an urgent need for a fireproof board that can avoid damaging the original sealing, facilitate wiring, and take into account both fire resistance and aesthetics, thus solving the pain points of existing technologies. Utility Model Content

[0005] The present invention provides a fireproof board for cable laying holes in underground factory cabinets, which achieves the functions of "no need to destroy the original seal, convenient cable laying as needed, tight fire protection, and neat and beautiful", ensuring the safe operation of equipment and reducing operating costs.

[0006] Other features and advantages of this invention will become apparent from the following detailed description, or may be learned in part by practice of this invention.

[0007] According to a first aspect of the present invention, a fireproof board for cable perforation in underground factory cabinets is provided, comprising: The fireproof board body is a rectangular plate structure; The fireproof board body has at least 12 wire holes, and a PVC wire sleeve is fixedly embedded in each wire hole. The axis of the PVC wire sleeve is consistent with the thickness direction of the fireproof board body, and the two ends of the PVC wire sleeve are flush with the two sides of the fireproof board body. Each of the PVC conduit sleeves is equipped with a sealing cap at one end, and the sealing cap is interference-fitted with the PVC conduit sleeve; At least one wire diameter adjustment ring is fixedly provided on the inner wall of each PVC conduit, and the wire diameter adjustment rings are distributed at intervals along the axial direction of the PVC conduit.

[0008] In some embodiments of this utility model, based on the aforementioned scheme, the material of the fireproof board body is a flame-retardant fireproof board.

[0009] In some embodiments of this utility model, based on the foregoing scheme, the PVC conduit is made of flame-retardant PVC material.

[0010] In some embodiments of this utility model, based on the foregoing solution, the sealing cap is an elastic rubber cap.

[0011] In some embodiments of this utility model, based on the foregoing scheme, the wire diameter adjustment ring is an annular elastic flame-retardant rubber ring.

[0012] In some embodiments of this utility model, based on the aforementioned scheme, the number of wire diameter adjustment rings is 1-2.

[0013] The technical solution of this utility model has the following beneficial effects: 1. Avoid blockage and damage, and ensure safety: By reserving PVC conduit with caps, when adding cables temporarily in the future, there is no need to damage the original fireproof sealing structure. The caps can be removed to run the cables, completely eliminating the safety hazard of accidental contact with live equipment and ensuring the safe operation of the control panel. 2. Adaptive wire diameter, fireproof and tight: The wire diameter adjustment ring can adaptively fit the cable diameter, eliminating gaps after wiring. The fireproof sealing performance is better than traditional fireproof sealant and meets fireproof isolation standards. 3. Neat and aesthetically pleasing, meeting requirements: When the wire is not threaded, the cap and cover form a complete flat surface; after threading, the wire diameter adjustment ring is hidden inside the sleeve. The overall structure is neat and meets the neatness requirements of "beautiful electromechanical". 4. Cost reduction and efficiency improvement, strong practicality: No need to repeatedly consume fireproof materials and labor costs, easy to operate, especially suitable for scenarios such as DC system load cabinets that require frequent temporary power supply, significantly reducing operating costs and improving work efficiency.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1 A three-dimensional structural schematic diagram of a fireproof board for cable perforation in underground factory cabinets is shown according to an embodiment of the present invention. Figure 2 A cross-sectional structural schematic diagram of a fireproof board for cable perforation in underground factory cabinets is shown according to an embodiment of the present invention. Figure 3 This diagram shows a partially enlarged view of the wiring process of a fireproof board for cable perforation in an underground factory cabinet, according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures 1-Fireproof board body; 2-PVC conduit sleeve; 3-Sealing cap; 4-Wire diameter adjustment ring; 5-Cable. Detailed Implementation

[0017] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0018] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0019] It should be noted that "multiple" as mentioned in this article refers to two or more.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] The following description, in conjunction with the accompanying drawings, details some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] To address the technical problems existing in the prior art, this utility model provides a fireproof board for cable perforation in underground factory cabinets. The fireproof board is designed as follows: 1. Overall structural design A fireproof board for cable perforation in underground factory cabinets includes a fireproof board body. The fireproof board body is a rectangular plate structure adapted to the installation dimensions of the bottom of the underground factory cabinets, with a thickness of 10cm. Its material is a flame-retardant fireproof board (such as an inorganic fireproof board) that conforms to the GB23864-2009 standard "Fireproof Sealing Materials" to ensure basic fire resistance performance.

[0023] 2. Threading Hole Assembly Design At least 12 wire holes are evenly provided on the fireproof board body, and a PVC wire sleeve is fixedly embedded in each wire hole; the PVC wire sleeve is made of flame-retardant PVC (flame retardant level not lower than V-0), its axis is consistent with the thickness direction of the fireproof board body, and both ends of the PVC wire sleeve are flush with the two sides of the fireproof board body to ensure smooth wire threading without protrusion.

[0024] 3. Cap Structure Design Each of the PVC conduit sleeves is equipped with a sealing cap at both ends. The sealing cap is an elastic rubber cap that fits the inner diameter of the PVC conduit sleeve. The sealing cap and the PVC conduit sleeve are connected by an interference fit. When no wire is being threaded, the sealing cap covers the end of the PVC conduit sleeve, so that the wire hole and the fireproof board body form a complete plane, ensuring fireproof sealing and a clean appearance. When wire needs to be threaded, the sealing cap can be removed manually without damaging the fireproof board body.

[0025] 4. Wire diameter adjustment structure design Each PVC conduit has a wire diameter adjustment ring fixedly installed on its inner wall. The wire diameter adjustment ring is an annular elastic flame-retardant rubber ring (flame retardant level not lower than V-0). Its inner diameter can adaptively expand and contract according to the cable diameter. There are 1-2 wire diameter adjustment rings, which are evenly distributed along the axial direction of the PVC conduit to ensure that the wire diameter adjustment ring can fit tightly against the outer wall of the cable when the cable passes through, eliminating gaps and preventing flames and smoke from spreading through the gaps. At the same time, it fixes the position of the cable and prevents it from shaking.

[0026] For example, see Figure 1 The diagram shows a three-dimensional structural schematic of a fireproof board for cable perforation in underground factory cabinets according to an embodiment of the present invention.

[0027] See Figure 2 The diagram shows a cross-sectional view of a fireproof board for cable perforation in underground factory cabinets according to an embodiment of the present invention.

[0028] See Figure 3 The diagram shows a partially enlarged schematic of the wiring state of a fireproof board for cable perforation in an underground factory cabinet, according to an embodiment of the present invention.

[0029] like Figure 1-3 As shown, a fireproof board for cable perforation in underground factory cabinets includes: Fireproof board body 1, wherein the fireproof board body 1 is a rectangular plate structure; The fireproof board body 1 has at least 12 wire holes, and a PVC wire sleeve 2 is fixedly embedded in each wire hole. The axis of the PVC wire sleeve 2 is consistent with the thickness direction of the fireproof board body 1, and the two ends of the PVC wire sleeve 2 are flush with the two sides of the fireproof board body. Each of the PVC conduit sleeves 2 is equipped with a sealing cap 3 at one end, and the sealing cap 3 is interference-fitted with the PVC conduit sleeve 2; At least one wire diameter adjustment ring 4 is fixedly provided on the inner wall of each PVC conduit 2, and the wire diameter adjustment rings 4 are distributed at intervals along the axial direction of the PVC conduit 2.

[0030] It should be noted that the fireproof board body 1 is a rectangular inorganic fireproof board with a thickness of 10cm, which is adapted to the installation size of the bottom of the cabinet in the underground factory.

[0031] It should be noted that the number of wiring holes can be adjusted according to the actual needs of the control panel.

[0032] In some feasible embodiments, based on the aforementioned scheme, the material of the fireproof board body 1 is a flame-retardant fireproof board.

[0033] It should be noted that the material of the fireproof board body 1 conforms to the GB 23864-2009 standard "Fireproof Sealing Materials".

[0034] In some feasible embodiments, based on the aforementioned scheme, the PVC conduit 2 is made of flame-retardant PVC material.

[0035] It should be noted that the flame retardant rating of PVC conduit sleeve 2 is not lower than V-0.

[0036] In some feasible embodiments, based on the aforementioned scheme, the sealing cap 3 is an elastic rubber cap.

[0037] In some feasible embodiments, based on the aforementioned scheme, the wire diameter adjustment ring 4 is an annular elastic flame-retardant rubber ring.

[0038] It should be noted that the flame retardant rating of the wire diameter adjustment ring 4 is not lower than V-0.

[0039] In some feasible embodiments, based on the aforementioned scheme, the number of wire diameter adjustment rings 4 is 1-2.

[0040] It should be noted that each PVC conduit 2 is covered with a sealing cap 3 made of elastic rubber at both ends. When no wire is being threaded, the sealing cap 3 is press-fitted with the conduit to form a complete fireproof surface. When wire needs to be threaded, the sealing cap 3 is manually removed, and the cable 5 is threaded through one end of the PVC conduit 2, passing through two wire diameter adjustment rings 4 (elastic flame-retardant rubber rings) spaced apart on the inner wall of the conduit. The wire diameter adjustment rings 4 adapt to fit the outer wall of the cable after being squeezed by the cable 5, eliminating gaps.

[0041] After the wiring is completed, no additional sealing is required. The wire diameter adjustment ring 4 achieves fireproof sealing and cable fixation, resulting in a neat overall structure. If additional cables are needed later, the above operation can be repeated without damaging the fireproof board body 1.

[0042] This implementation method is simple in structure and easy to operate, and can effectively solve the pain points of existing technologies. It is applicable to cable perforation and fireproof sealing scenarios in various underground factory cabinets.

[0043] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. It should be understood that the present invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A fireproof board for cable perforation in underground factory cabinets, characterized in that, include: The fireproof board body is a rectangular plate structure; The fireproof board body has at least 12 wire holes, and a PVC wire sleeve is fixedly embedded in each wire hole. The axis of the PVC wire sleeve is consistent with the thickness direction of the fireproof board body, and the two ends of the PVC wire sleeve are flush with the two sides of the fireproof board body. Each of the PVC conduit sleeves is equipped with a sealing cap at one end, and the sealing cap is interference-fitted with the PVC conduit sleeve; At least one wire diameter adjustment ring is fixedly provided on the inner wall of each PVC conduit, and the wire diameter adjustment rings are distributed at intervals along the axial direction of the PVC conduit.

2. The fireproof board for cable perforation in underground factory cabinets according to claim 1, characterized in that, The fireproof board itself is made of flame-retardant and fireproof board material.

3. The fireproof board for cable perforation in underground factory cabinets according to claim 1, characterized in that, The PVC conduit is made of flame-retardant PVC material.

4. The fireproof board for cable perforation in underground factory cabinets according to claim 1, characterized in that, The sealing cap is an elastic rubber cap.

5. The fireproof board for cable perforation in underground factory cabinets according to claim 1, characterized in that, The wire diameter adjustment ring is an annular elastic flame-retardant rubber ring.

6. The fireproof board for cable perforation in underground factory cabinets according to claim 1, characterized in that, The number of wire diameter adjustment rings is 1-2.

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