Fireproof plugging device for cable conduit

Abstract

The utility model discloses a fireproof plugging device for a cable conduit, which belongs to the technical field of cable conduits, and comprises two fixing plates in the shape of a semicircle, two connecting sleeves with threaded inner cavities are embedded and fixedly connected in the side surfaces of the fixing plates, and the connecting sleeves are in threaded connection with connecting bolts; the two plugging plates for fireproof plugging of the cable pipeline are in a semi-arc shape, and the outer arc surfaces of the plugging plates are connected with the fixing plate; the four positioning assemblies are arranged on the two sides of the two fixing plates, each positioning assembly comprises a wedge-shaped plate and an L-shaped supporting plate, the adjacent sides of the two supporting plates are connected with the fixing plates, the inner side walls of the supporting plates are connected with the wedge-shaped plates, the end faces of the supporting plates are connected with semi-arc-shaped positioning plates, and the inner arc faces of the positioning plates are connected with anti-skid plates used for supporting cables. The device can support and fix the cable, prevents the cable from extruding the plugging plate to cause the deformation of the plugging plate, and improves the fireproof plugging effect of the device on the cable pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of cable duct technology, and in particular, it is a fireproof sealing device for cable ducts. Background Technology

[0002] After cables are installed inside cable ducts, sealing devices are needed to seal them. Existing sealing devices often use elastic sealing elements to improve the sealing effect. However, the sealing elements are prone to deformation during long-term compression by the cables, which reduces the sealing effect of the sealing device on the cable duct.

[0003] In related technologies, a search revealed a Chinese patent document (authorization announcement number CN208386108U) for a sealing device for cable ducts, comprising multiple layers of fixing blocks. Each layer of fixing blocks is formed by two semi-annular elastic bodies. The contacting end faces of the two semi-annular elastic bodies are provided with mutually cooperating grooves and protrusions. The dividing lines of two adjacent fixing blocks are perpendicular to each other. Multiple threaded holes are evenly distributed radially on the fixing blocks. A screw is threaded into each threaded hole. One end of the screw is located on the outer wall of the outermost fixing block, and the other end passes through the threaded holes of each fixing block and presses against the cable. A semi-annular stop is also provided on the outer wall of each of the two semi-annular elastic bodies of the outermost fixing block. The two semi-annular stop and the outermost fixing block form an annular receiving cavity. Several annular elastic ribs are provided on the outer wall of the two semi-annular stop. This utility model provides a sealing device for cable ducts that has close contact with the cable and duct, ensuring stable positioning and good sealing effect. However, this device does not consider the possibility that the sealing element may deform during prolonged compression by the cable, thus reducing the sealing effect of the device on the cable duct. Utility Model Content

[0004] The purpose of this invention is to provide a fireproof sealing device for cable ducts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof sealing device for cable ducts, comprising:

[0006] Two fireproof sealing fixing plates for cable ducts are semi-circular in shape. Two threaded inner cavities are embedded in the side of the fixing plate and fixedly connected to the connecting sleeves, which are threaded with connecting bolts.

[0007] Two fireproof sealing plates for cable ducts are semi-circular in shape and made of ceramicized silicone rubber material. The outer arc surface of the sealing plate is connected to the fixing plate.

[0008] Four positioning components are set on both sides of the two fixed plates. Each positioning component includes a wedge plate and an L-shaped support plate. The adjacent sides of the two support plates are connected to the fixed plates, the inner sidewall of the support plate is connected to the wedge plate, and the end face of the support plate is connected to a semi-circular arc-shaped positioning plate. The inner arc surface of the positioning plate is connected to an anti-slip plate for supporting the cable.

[0009] Preferably, a protective component is provided on the side of the support plate, the protective component including a threaded ring and a fixing tube with threads on its surface.

[0010] Preferably, the end face of the fixed tube is connected and fixed to the support plate, and the fixed tube is threadedly connected to the threaded ring.

[0011] Preferably, the threaded ring has two connecting plates on its side, and there is a gap between the connecting plates and the fixed tube.

[0012] Preferably, the end faces of the two connecting plates are connected to a movable plate, and the curved surface of the movable plate is connected to two symmetrically arranged anti-slip blocks.

[0013] Preferably, the movable plate is connected to a plug-in post on its side, and a sealing sleeve is fitted onto the side of the plug-in post.

[0014] Preferably, the side of the sealing sleeve is slidably connected to the fixed tube, and the end face of the sealing sleeve is connected and fixed to the moving plate.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0016] This fireproof sealing device for cable ducts uses two fixed plates that close together, clamping the cable during the closing process. The curved surfaces of the two sealing plates fit the cable, allowing the sealing device to extend into the cable duct and be fixed by connecting bolts, thus achieving fireproof sealing of the cable duct. Simultaneously, the four positioning components clamp the cable during the closing process in pairs, preventing the cable from deforming due to prolonged pressure on the sealing plates, thereby improving the fireproof sealing effect on the cable duct. The support plate provides fixed support for the positioning plate and anti-slip plate, supporting and fixing the cable when the anti-slip plate contacts it. The wedge-shaped plate further supports and fixes the support plate, improving the structural stability of the device's components.

[0017] This fireproof sealing device for cable ducts uses a fixing plate to support and fix the sealing plate. The fixing plate is often made of metal, which is prone to corrosion, shortening the service life of the fireproof sealing device. The protective component stores metals such as aluminum and zinc, which replace the fixing plate in oxidation and corrosion, thus extending the service life of the device. The aluminum and zinc are placed in the inner cavity of the fixing pipe, and the threaded ring moves along the thread path of the fixing pipe. With the connection of two connecting plates, the moving plate drives the sealing sleeve to extend into the inner cavity of the fixing pipe. At the same time, the push of the plug-in column makes the aluminum and zinc fully contact the support plate. The support plate and the fixing plate are made of the same material, achieving anti-oxidation and corrosion treatment for the fixing plate. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the positioning component of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the protective component of this utility model;

[0022] Figure 4 This is a schematic diagram of the threaded ring and the movable plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing sleeve of this utility model from another perspective.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Fixing plate; 2. Sealing plate; 3. Connecting sleeve; 4. Connecting bolt; 5. Positioning assembly; 6. Support plate; 7. Positioning plate; 8. Anti-slip plate; 9. Wedge plate; 10. Protective assembly; 11. Fixing pipe; 12. Threaded ring; 13. Connecting plate; 14. Moving plate; 15. Anti-slip block; 16. Insertion post; 17. Sealing sleeve. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0028] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0029] Please see Figures 1 to 5 A fireproof sealing device for cable ducts, in this embodiment including:

[0030] Two fireproof sealing fixing plates 1 for cable ducts are semi-circular in shape. When the two fixing plates 1 are closed together, they can be combined to form a ring structure. The structure formed by the combination of the two fixing plates 1 fits the inner wall of the cable duct. Two connecting sleeves 3 with threaded inner cavities are embedded and fixedly connected to the side of the fixing plate 1. Both ends of the connecting sleeves 3 penetrate the fixing plate 1, and the part of the connecting sleeves 3 extending out of the fixing plate 1 is reserved with sufficient length. The connecting sleeves 3 are threadedly connected with connecting bolts 4. When the fireproof sealing device extends into the cable duct, it is threadedly connected to the connecting sleeves 3 and the connecting structure inside the cable duct through the connecting bolts 4, so as to realize the installation and fixation of the device and provide conditions for fireproof sealing of the cable duct.

[0031] The two fireproof sealing plates 2 for cable ducts are semi-circular arc-shaped. When the two sealing plates 2 are closed together, they can be combined to form a ring structure. At the same time, the inner ring surface of the ring structure formed by the combination of the two sealing plates 2 is cut into the cable, providing conditions for fireproof sealing of the cable duct. They are made of ceramicized silicone rubber material, and the outer arc surface of the sealing plate 2 is connected to the fixing plate 1.

[0032] Four positioning components 5 are set on both sides of two fixed plates 1. Each fixed plate 1 has a positioning component 5 on both sides. When two positioning components 5 on the same side are closed together, the cable can be clamped, supported and fixed. The positioning component 5 includes a wedge plate 9 and an L-shaped support plate 6. The adjacent sides of the two support plates 6 are connected to the fixed plate 1. The inner sidewall of the support plate 6 is connected to the wedge plate 9. The end face of the support plate 6 is connected to a semi-circular arc-shaped positioning plate 7. The inner arc surface of the positioning plate 7 is connected to an anti-slip plate 8 for supporting the cable. The fixed plate 1, the support plate 6 and the positioning plate 7 are all made of the same metal material.

[0033] A protective component 10 is provided on the side of the support plate 6. The protective component 10 stores metals such as aluminum and zinc, which replace the fixed plate 1 in being oxidized and corroded, thus protecting the components of the device and extending its service life. The protective component 10 includes a threaded ring 12 and a fixed tube 11 with threads on its surface. The inner cavity of the fixed tube 11 is used to store metals such as aluminum and zinc. The end face of the fixed tube 11 is connected and fixed to the support plate 6. The fixed tube 11 is threadedly connected to the threaded ring 12, allowing the threaded ring 12 to move along the threaded path of the fixed tube 11. Two connecting plates 13 are connected to the side of the threaded ring 12, and both connecting plates 13 are located on the threaded ring 12. On the same side, there is a gap between the connecting plate 13 and the fixed pipe 11 to prevent the two connecting plates 13 from contacting the fixed pipe 11, hindering the threaded ring 12 from moving down the path of the fixed pipe 11, and improving the structural stability of the components of the device. The end faces of the two connecting plates 13 are connected to the moving plate 14. The curved surface of the moving plate 14 is connected to two symmetrically arranged anti-slip blocks 15. The side of the moving plate 14 is connected to the insertion post 16. The side of the insertion post 16 is fitted with the sealing sleeve 17. The side of the sealing sleeve 17 is slidably connected to the fixed pipe 11. The end face of the sealing sleeve 17 is connected and fixed to the moving plate 14. All structures of the device are made of fire-resistant materials to achieve the fireproof function of the device.

[0034] To achieve fireproof sealing, the two fixing plates 1 are closed together, and the two sealing plates 2 are also closed together and fit with the cable, so that the two fixing plates 1 extend into the cable duct to fireproof the cable duct. The four connecting sleeves 3 abut against the connecting structure inside the cable duct. With the threaded connection of the connecting bolts 4, the fireproof sealing device is installed and fixed inside the cable duct, thus achieving fireproof sealing of the cable duct.

[0035] To support the cable, during prolonged use of the fire-stopping device, the cable is easily squeezed by gravity onto the sealing plate 2, causing the sealing plate 2 to deform and reducing the fire-stopping effect of the fire-stopping device on the cable duct. When the two fixed plates 1 are closed together, the two positioning components 5 located on the same side of the two fixed plates 1 clamp and fix the cable during the closing process, providing support and fixing the cable, preventing the cable from squeezing the sealing plate 2, and thus improving the fire-stopping effect of the device on the cable duct. When the two positioning components 5 are closed together, the two positioning plates 7 drive the anti-slip plate 8 to clamp and fix the cable during the closing process. The set support plate 6 and wedge plate 9 provide support and fixation for the positioning plate 7, thereby improving the structural stability of the device's components.

[0036] To provide protection, although the fireproof sealing device is rust-proofed by spraying paint on the parts that are prone to rust, it is still susceptible to oxidation and corrosion during long-term use. The protective component 10 stores metals such as aluminum and zinc, so that the aluminum and zinc replace the fixed plate 1 and the support plate 6 in oxidation and corrosion, thus extending the service life of the device. The aluminum and zinc are kept in the inner cavity of the fixed tube 11. The threaded ring 12 moves along the threaded path of the fixed tube 11. With the connection of the two connecting plates 13, the moving plate 14 drives the sealing sleeve 17 to extend into the inner cavity of the fixed tube 11, so that the plug post 16 pushes the aluminum and zinc to fit tightly against the support plate 6, thereby improving the structural stability of the device's components.

[0037] Working principle

[0038] This fireproof sealing device for cable ducts allows the two fixing plates 1 to close together, which in turn causes the two sealing plates 2 to close together. The inner arc surfaces of the two sealing plates 2 fit the cable. With the connection of the connecting sleeve 3 and the connecting bolt 4, the fixing plates 1 are installed and fixed in the inner cavity of the cable duct, thus achieving fireproof sealing of the cable duct.

[0039] The two positioning components 5 located on the same side of the two fixed plates 1 close to each other, so that the two positioning plates 7 drive the two anti-slip plates 8 to clamp and support the cable during the closing process, and the support plate 6 and the wedge plate 9 provide support and fixation.

[0040] Metals such as aluminum and zinc are placed inside the fixed tube 11. The threaded ring 12 moves along the threaded path of the fixed tube 11. With the connection of the two connecting plates 13, the moving plate 14 moves. During the transmission process, the sealing sleeve 17 and the plug post 16 extend into the inner cavity of the fixed tube 11 and press against the metals such as aluminum and zinc, so that the metals such as aluminum and zinc are in close contact with the support plate 6.

[0041] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof sealing device for cable ducts, characterized in that, include: Two fireproof sealing fixing plates (1) for cable ducts are semi-circular arc-shaped. Two connecting sleeves (3) with threaded inner cavities are embedded and fixedly connected to the side of the fixing plate (1). The connecting sleeves (3) are threadedly connected with connecting bolts (4). Two fireproof sealing plates (2) for cable ducts are semi-circular arc-shaped and made of ceramicized silicone rubber material. The outer arc surface of the sealing plate (2) is connected to the fixing plate (1). Four positioning components (5) are disposed on both sides of two fixed plates (1). Each positioning component (5) includes a wedge plate (9) and an L-shaped support plate (6). The two support plates (6) are connected to the fixed plates (1) on adjacent sides. The inner sidewall of the support plate (6) is connected to the wedge plate (9). The end face of the support plate (6) is connected to a semi-circular arc-shaped positioning plate (7). The inner arc surface of the positioning plate (7) is connected to an anti-slip plate (8) for supporting the cable.

2. A fireproof sealing device for cable ducts according to claim 1, characterized in that: The support plate (6) is provided with a protective component (10) on its side, the protective component (10) including a threaded ring (12) and a fixed tube (11) with threads on its surface.

3. A fireproof sealing device for cable ducts according to claim 2, characterized in that: The end face of the fixed tube (11) is connected and fixed to the support plate (6), and the fixed tube (11) is threadedly connected to the threaded ring (12).

4. A fireproof sealing device for cable ducts according to claim 3, characterized in that: The threaded ring (12) has two connecting plates (13) connected to its side, and there is a gap between the connecting plates (13) and the fixed tube (11).

5. A fireproof sealing device for cable ducts according to claim 4, characterized in that: The two connecting plates (13) are connected to a movable plate (14) on their end faces, and the movable plate (14) is connected to two symmetrically arranged anti-blocking blocks (15) on its curved surface.

6. A fireproof sealing device for cable ducts according to claim 5, characterized in that: The movable plate (14) is connected to a plug post (16) on its side, and a sealing sleeve (17) is fitted onto the side of the plug post (16).

7. A fireproof sealing device for cable ducts according to claim 6, characterized in that: The side of the sealing sleeve (17) is slidably connected to the fixed tube (11), and the end face of the sealing sleeve (17) is connected and fixed to the moving plate (14).

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