Cable fireproof plugging anti-falling device

Abstract

The invention, which relates to the technical field of the electrical equipment, discloses a cable fireproof plugging anti-falling device comprising a grid supporting part and a connecting part. The grid supporting part is arranged in the cable protection pipe, a plurality of avoiding areas are formed on the grid supporting part, the avoiding areas are used for allowing cables to penetrate through, and the grid supporting part is used for bearing organic plugging materials; the lower end of the connecting part is connected with the grid supporting part, and the upper end of the connecting part is connected with a pipe orifice of the cable protection pipe; according to the technical scheme provided by the invention, the fireproof safety of the cable system is improved.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a cable fireproof sealing and anti-detachment device. Background Technology

[0002] Cables, as carriers of electrical energy, play a crucial role in power systems. Their performance stability depends not only on the quality of the cable itself and the operating environment, but also on the fireproofing measures implemented, which significantly impact their lifespan and reliability. To ensure the stability and safety of cables within the power system, cables must be protected by conduits during installation, and the conduit openings must be waterproofed and fireproofed. However, in fireproofing indoor and outdoor cable conduits, especially in sealing the openings of vertically arranged conduits, existing organic sealants (such as fire-retardant putty) may soften, dry, and detach from the bottom of the conduit under the influence of ambient temperature and humidity, damaging the conduit's fire resistance. Summary of the Invention

[0003] The main objective of this invention is to provide a fireproof sealing and anti-detachment device for cables, which aims to improve the fire safety of cable systems.

[0004] To achieve the above objectives, the present invention proposes a cable fireproof sealing and anti-detachment device for cable protection pipes, wherein the cable protection pipes extend vertically, and the cable fireproof sealing and anti-detachment device includes a grid support part and a connecting part;

[0005] The mesh support is located inside the cable protection pipe. The mesh support has multiple clearance areas for the cable to pass through, and the mesh support is used to support organic plugging material.

[0006] The lower end of the connecting part is connected to the grid support part, and the upper end of the connecting part is connected to the opening of the cable protection pipe.

[0007] In one embodiment, the connecting portion includes a plurality of connecting rods;

[0008] The grid support includes a first annular connector and multiple strip connectors. The lower ends of the multiple connecting rods are all connected to the first annular connector and are spaced apart along the circumference of the first annular connector. Each strip connector connects two connecting rods. The multiple strip connectors are staggered to form a grid structure, and the grid structure forms multiple avoidance areas.

[0009] In one embodiment, the connecting rod is detachably connected to the first annular connector.

[0010] In one embodiment, the strip connector is detachably connected to the connecting rod.

[0011] In one embodiment, the first annular connector is telescopically oriented.

[0012] In one embodiment, the strip connector is telescopically oriented.

[0013] In one embodiment, the connecting portion further includes a second annular connector, and the middle portions of the plurality of connecting rods are all connected to the second annular connector.

[0014] In one embodiment, the second annular connector is telescopically oriented.

[0015] In one embodiment, the top end of the connecting rod is provided with a hook, which is attached to the opening of the cable protection pipe.

[0016] In one embodiment, the connecting rod is made of stainless steel.

[0017] In the technical solution of the present invention, by setting up a grid support part, the organic sealant can be effectively prevented from falling off or shifting due to gravity, so that the organic sealant can always tightly fill the pipe space around the cable. Even when the physical properties of the organic sealant change to a certain extent due to changes in ambient temperature, it can maintain a good fireproof sealing effect and improve the fire safety of the cable system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an embodiment of the cable fireproof sealing and anti-detachment device provided by the present invention.

[0020] Explanation of icon numbers:

[0021] 1000. Cable fireproof sealing and anti-detachment device; 1. Connecting rod; 2. First ring connector; 3. Strip connector; 4. Second ring connector.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a cable fireproof sealing and anti-detachment device 1000 for use in cable protection pipes, wherein the cable protection pipes are arranged to extend vertically.

[0027] Please see Figure 1 In one embodiment of the present invention, the cable fireproof sealing and anti-detachment device 1000 includes a grid support part and a connecting part; the grid support part is disposed inside the cable protection pipe, and the grid support part forms multiple avoidance areas, which are used for the cable to pass through, and the grid support part is used to carry organic sealing material; the lower end of the connecting part is connected to the grid support part, and the upper end of the connecting part is connected to the pipe opening of the cable protection pipe.

[0028] In the technical solution of the present invention, by setting up a grid support part, the organic sealant can be effectively prevented from falling off or shifting due to gravity, so that the organic sealant can always tightly fill the pipe space around the cable. Even when the physical properties of the organic sealant change to a certain extent due to changes in ambient temperature, it can maintain a good fireproof sealing effect and improve the fire safety of the cable system.

[0029] For details, please refer to Figure 1 In one embodiment of the present invention, the connecting part includes multiple connecting rods 1; the grid support part includes a first annular connector 2 and multiple strip connectors 3. The lower ends of the multiple connecting rods 1 are all connected to the first annular connector 2 and are spaced apart along the circumference of the first annular connector 2. Each strip connector 3 connects two connecting rods 1, and the multiple strip connectors 3 are staggered to form a grid structure, which forms multiple avoidance areas. The connecting part is composed of multiple connecting rods 1, which play a key supporting and connecting role in space; each end of each strip connector 3 is connected to two connecting rods 1, and the strip connectors 3 are staggered at a certain pattern and angle, thereby forming a grid structure. This grid structure rationally divides the internal space of the cable protection pipe, forming multiple avoidance areas for cables to pass through.

[0030] During installation, the grid support, consisting of the first annular connector 2, connecting rod 1, and strip connector 3, is first placed inside the cable protection pipe, fitting snugly against the inner wall of the pipe. Then, the upper end of connecting rod 1 is fixedly connected to the opening of the cable protection pipe using threaded connections, welding, or other suitable methods to secure the entire device within the pipe. After the cable passes through the clearance area of ​​the grid support, organic sealant is filled into the grid structure. Supported by the grid, the organic sealant is evenly distributed within the pipe space around the cable, forming a good fire-resistant sealing layer. Due to the supporting effect of connecting rod 1 and strip connector 3, the organic sealant will not fall downwards or accumulate at the pipe opening due to gravity, effectively solving the problem of easy detachment of the organic sealant.

[0031] Furthermore, the connecting rod 1 and the first annular connecting member 2 are detachably connected. This connection method can be a common mechanical connection method such as a threaded connection, a snap-fit ​​connection, or a plug-in connection. In one embodiment of the present invention, corresponding internal and external threads (or vice versa) are machined on the lower end of the connecting rod 1 and the first annular connecting member 2, respectively, and a firm connection between the two is achieved through the meshing of the threads. To ensure the stability of the connection, the precision of the threads should meet certain standards, and appropriate anti-loosening devices, such as spring washers and lock nuts, can be added at the threaded connection to prevent the connection from loosening due to vibration or other factors. In other embodiments, a snap-fit ​​and a slot are designed to cooperate with each other on the lower end of the connecting rod 1 and the first annular connecting member 2, respectively. The snap-fit ​​can be designed with a certain elastic deformation capacity. When the connecting rod 1 and the first annular connecting member 2 are assembled, the snap-fit ​​can be smoothly inserted into the slot and tightly locked under the elastic action to achieve a fixed connection between the two. Alternatively, the lower end of the connecting rod 1 can be machined into the form of a plug-in connector, and a corresponding plug-in hole can be provided on the first annular connecting member 2. The shape of the connector matches the shape of the socket, and connection is achieved by inserting the connector into the socket. To enhance the connection's strength, a limiting structure, such as a limiting flange or a limiting pin, can be provided between the connector and the socket to prevent the connecting rod 1 from detaching from the first annular connector 2 during use. The detachable connection method makes the connection between the connecting rod 1 and the first annular connector 2 more flexible. During installation, the number and position of the connecting rods 1 can be easily adjusted according to actual installation requirements and the size of the cable protection pipe, improving the adaptability and versatility of the device.

[0032] Furthermore, the strip connector 3 is detachably connected to the connecting rod 1. Common connection methods include bolt connection, snap-fit ​​connection, or plug-in connection. In one embodiment of the invention, a snap-fit ​​structure is designed at one end of the strip connector 3, and a corresponding slot is provided on the connecting rod 1. By aligning the snap of the strip connector 3 with the slot of the connecting rod 1 and applying a certain pressure, the snap and slot are tightly fitted, achieving a fixed connection between the two. Snap-fit ​​connection is convenient and quick to install, and also easy to disassemble. In other embodiments, one end of the strip connector 3 is processed into a plug-in form, and a corresponding plug-in hole is provided on the connecting rod 1. The shape of the plug matches the shape of the plug-in hole, and the strip connector 3 is connected to the connecting rod 1 by inserting the plug into the plug-in hole. To prevent the strip connector 3 from falling off the connecting rod 1 during use, a limiting device, such as a limiting pin or a spring clip, can be provided between the plug and the plug-in hole. In actual use, the structure of the mesh support may need to be adjusted according to changes in the number, diameter, or layout of the cables. The detachable connection method allows the strip connector 3 to be easily disassembled and reinstalled. The shape and size of the grid structure can be flexibly adjusted according to actual needs, and the number of avoidance areas can be increased or decreased to adapt to the cable layout requirements of different specifications.

[0033] Specifically, in one embodiment of the present invention, the first annular connector 2 is telescopically oriented. The first annular connector 2 is made of corrugated telescopic material, which can extend and retract to change its length, making the device suitable for cable protection pipes with different inner diameters. This eliminates the need to design and manufacture dedicated devices for cable protection pipes of different specifications, thus reducing production costs.

[0034] Furthermore, in one embodiment of the present invention, the strip connector 3 is telescopically oriented. The strip connector 3 is also made of corrugated telescopic material, allowing it to stretch and change length, thus adapting to cable protection pipes of different inner diameters.

[0035] To improve connection stability, please refer to Figure 1 In one embodiment of the present invention, the connecting part further includes a second annular connector 4, and the middle portions of the plurality of connecting rods 1 are all connected to the second annular connector 4. The middle portion of each connecting rod 1 is connected to the second annular connector 4, forming a reinforced intermediate structure, which is equivalent to adding a support point in the middle of the device, making the entire connecting part more stable. It can effectively disperse the stress on the connecting rods 1, preventing the connecting rods 1 from bending or breaking during stress, thereby improving the load-bearing capacity and stability of the entire device. The second annular connector 4 is also made of corrugated expandable material, allowing it to expand and contract to change its length, making it suitable for cable protection pipes with different inner diameters.

[0036] The connecting rod 1 and the second annular connecting member 4 are also detachably connected. Specifically, multiple snap-fit ​​structures can be designed on the second annular connecting member 4, with the number of snap-fits corresponding to the number of connecting rods 1. A slot is provided in the middle of the connecting rod 1 to mate with the snap-fit. By aligning the snap-fit ​​with the slot and applying a certain pressure, the snap-fit ​​and slot are tightly fitted, achieving a fixed connection between the connecting rod 1 and the second annular connecting member 4. The snap-fit ​​connection is convenient and quick to install, and also easy to disassemble. Alternatively, multiple insertion holes can be provided on the second annular connecting member 4, with the number of insertion holes corresponding to the number of connecting rods 1. The middle part of the connecting rod 1 is machined into the form of a plug, the shape of which matches the shape of the insertion hole. The connection between the connecting rod 1 and the second annular connecting member 4 is achieved by inserting the plug into the insertion hole. To prevent the connecting rod 1 from falling off the second annular connecting member 4 during use, a limiting device, such as a limiting pin or a spring clip, can be provided between the plug and the insertion hole. By adopting a detachable connection method, the connection between the connecting rod 1 and the second annular connecting member 4 becomes more flexible. In practical applications, the connecting rod 1 and the second annular connecting piece 4 can be quickly disassembled or assembled as needed, which facilitates the maintenance, adjustment or replacement of parts of the device.

[0037] Furthermore, in one embodiment of the present invention, the top end of the connecting rod 1 is provided with a hook, which is hooked onto the opening of the cable protection pipe. The hook can be designed as a "U" or "C" shaped structure, and its size matches the opening size of the cable protection pipe to ensure a secure connection. During installation, after placing the mesh support inside the cable protection pipe, the top end of the connecting rod 1 is aligned with the opening of the cable protection pipe, and the hook is used to hook it onto the edge of the opening. To ensure a secure connection, the hook has a certain degree of elasticity, allowing it to deform appropriately during the connection process, thus fitting tightly against the edge of the opening. By providing a hook at the top end of the connecting rod 1, a simple and effective connection method is provided. This method requires no complex tools or equipment; installation can be completed simply by hooking the hook onto the opening of the cable protection pipe. Simultaneously, the design of the hook can be adjusted according to the shape and size of the cable protection pipe opening to accommodate different specifications of cable protection pipes.

[0038] Specifically, in one embodiment of the present invention, the connecting rod 1 is made of stainless steel. Stainless steel possesses excellent strength, toughness, and corrosion resistance. Using stainless steel for the connecting rod 1 ensures that it maintains good mechanical properties and corrosion resistance during long-term use. In the environment of cable protection conduits, it may come into contact with corrosive media such as moisture and chemicals; the stainless steel material can effectively resist the erosion of these media, extending the service life of the connecting rod 1. Furthermore, stainless steel has high strength and good toughness, capable of withstanding large tensile, compressive, and bending moment loads. During installation and use, the connecting rod 1 is not easily deformed or damaged, effectively supporting the grid support and ensuring the stability of the fireproof sealing effect.

[0039] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A cable fireproof sealing and anti-detachment device, used in a cable protection pipe, wherein the cable protection pipe extends vertically, characterized in that, The cable fireproof sealing and anti-detachment device includes a grid support part and a connecting part; The mesh support is located inside the cable protection pipe. The mesh support has multiple clearance areas for the cable to pass through, and the mesh support is used to support organic plugging material. The lower end of the connecting part is connected to the grid support part, and the upper end of the connecting part is connected to the opening of the cable protection pipe.

2. The cable fireproof sealing and anti-detachment device as described in claim 1, characterized in that, The connecting part includes multiple connecting rods; The grid support includes a first annular connector and multiple strip connectors. The lower ends of the multiple connecting rods are all connected to the first annular connector and are spaced apart along the circumference of the first annular connector. Each strip connector connects two connecting rods. The multiple strip connectors are staggered to form a grid structure, and the grid structure forms multiple avoidance areas.

3. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The connecting rod is detachably connected to the first annular connecting member.

4. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The strip connector is detachably connected to the connecting rod.

5. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The first annular connector is retractable.

6. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The strip connector is retractable.

7. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The connecting part further includes a second annular connector, and the middle part of each of the plurality of connecting rods is connected to the second annular connector.

8. The cable fireproof sealing and anti-detachment device as described in claim 7, characterized in that, The second annular connector is retractable.

9. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The top of the connecting rod is provided with a hook, which is attached to the opening of the cable protection pipe.

10. The cable fireproof sealing and anti-detachment device as described in claim 2, characterized in that, The connecting rod is made of stainless steel.

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