Fire barrier cable duct

Abstract

The application relates to a cable fireproof tube which comprises a sleeve and clamping pieces. The clamping pieces are provided in pairs, each of the clamping pieces comprises a main body part, a clamping part and an abutting part, the clamping part is connected with the main body part, the clamping parts of the two clamping pieces are clamped with each other, the main body parts of the two clamping pieces are enclosed to form a cylindrical structure, the cylindrical structure is arranged at one end of the sleeve, and one end of the cylindrical structure is sleeved on the outer periphery of the sleeve; the abutting part is connected to the opposite side of the main body part, the abutting parts of the two clamping pieces are arranged in an enclosed mode and abut against the outer periphery of a cable, the opening diameter of the abutting parts in the enclosed mode is smaller than the opening diameter of the cylindrical structure, the main body part, the side of the abutting part away from the sleeve and the cable are enclosed to form a containing cavity, and the containing cavity is used for filling fireproof mud. The fireproof mud is arranged in the containing cavity, the sealing performance of the cylindrical structure can be effectively improved, the abutting part can block the fireproof mud, the fireproof mud is prevented from entering the sleeve, the containing cavity can contain the fireproof mud, and the fireproof mud is prevented from falling off.

Description

Technical Field

[0001] This application relates to the field of cable conduit technology, and in particular to a fireproof cable conduit. Background Technology

[0002] With urban development and construction, cables are widely used in urban power infrastructure. Existing cables typically consist of metal conductors surrounded by a PVC cable sheath. This sheath usually only provides insulation and has poor flame-retardant properties. For safety reasons, cables usually need to be wrapped in fire-resistant conduits. However, gaps often exist between the fire-resistant conduit and the cable, which can easily accumulate water and corrode the cable, thus reducing its lifespan.

[0003] In related technologies, sealing measures are typically taken at the opening of fireproof pipes to block the gap between the fireproof pipe and the cable. Existing technologies usually involve directly applying fire-retardant putty around the outer perimeter of the fireproof pipe opening to achieve both sealing and fireproofing requirements.

[0004] However, the above method of directly sealing the fireproof putty around the outside of the fireproof pipe opening is prone to falling off after a period of use because the fireproof putty placed around the outside of the fireproof pipe opening lacks support. Utility Model Content

[0005] Therefore, it is necessary to provide a fireproof cable conduit to address the problem that the aforementioned fireproof sealant is prone to falling off after a period of time.

[0006] A fireproof cable conduit, comprising:

[0007] casing;

[0008] Two clamping members are provided, each comprising a main body, a snap-fit ​​portion, and an abutment portion. The snap-fit ​​portion is connected to the main body, and the snap-fit ​​portions of the two clamping members snap into each other so that the main bodies of the two clamping members enclose each other to form a cylindrical structure. The cylindrical structure is located at one end of the sleeve, and one end of the cylindrical structure is fitted onto the outer periphery of the sleeve. The abutment portion is connected to the opposite side of the main body, and the abutment portions of the two clamping members are arranged to surround and abut against the outer periphery of the cable. The diameter of the opening formed by the abutment portion is smaller than the diameter of the opening of the cylindrical structure, so that the main body, the side of the abutment portion facing away from the sleeve, and the cable enclose each other to form a receiving cavity, which is used to fill fireproof putty.

[0009] In some embodiments, the diameter of the opening formed by the abutment portion is smaller than the outer diameter of the cable.

[0010] In some embodiments, the abutment portion is welded to the outer wall of the cable.

[0011] In some embodiments, the main body, the snap-fit ​​portion, and the abutment portion are integrally formed.

[0012] In some embodiments, the snap-fit ​​portion includes a first snap-fit ​​structure and a second snap-fit ​​structure, the first snap-fit ​​structure and the second snap-fit ​​structure are respectively disposed at both ends of the main body portion, and the first snap-fit ​​structure of the clamping member engages with the second snap-fit ​​structure of the other clamping member.

[0013] In some embodiments, the first snap-fit ​​structure includes an extension section and a snap-fit ​​section, the width of the snap-fit ​​section being greater than the width of the extension section; the second snap-fit ​​structure includes a first snap-fit ​​groove and a second snap-fit ​​groove, the extension section being disposed corresponding to the first snap-fit ​​groove, and the snap-fit ​​section being snapped into the interior of the second snap-fit ​​groove to restrict the snap-fit ​​section from moving in a direction opposite to the two clamping members.

[0014] In some embodiments, the fireproof cable conduit further includes a clamp, which is fitted onto the end of the conduit away from the clamping member.

[0015] In some embodiments, the clamp includes two retaining rings, one end of which is hinged to one end of the other retaining ring, and the other end of which is detachably connected to the other end of the other retaining ring.

[0016] In some embodiments, the sidewalls of the abutting portions of the two clamping members abut against each other.

[0017] In some embodiments, the fireproof cable conduit further includes a sealing ring disposed between the sleeve and the cylindrical structure, the sealing ring being sleeved on the outer periphery of the sleeve, and the cylindrical structure being sleeved on the outer periphery of the sealing ring.

[0018] The aforementioned fireproof cable conduit, by sleeved around the outer periphery of the cable, protects the cable from damage. Two clamping members are provided at the end of the sleeve, and these two clamping members are interlocked and fixed together, forming a cylindrical structure with the two main body parts. The end of the cylindrical structure formed by the clamping members is fitted onto one end of the sleeve, allowing the cylindrical structure to connect with the sleeve. Two abutting parts form an enclosing structure that abuts against the outer periphery of the cable. This design ensures a seal at the end of the sleeve near the clamping members. The opening diameter of the cylindrical structure is larger than the opening diameter formed by the abutting parts, meaning there is a gap between the inner wall of the main body and the cable. This allows the main body, the side of the abutting part facing away from the sleeve, and the cable to form a receiving cavity. Fireproof putty is placed in this receiving cavity, effectively improving the sealing performance of the cylindrical structure. The abutting parts prevent the fireproof putty from entering the sleeve during the filling process, and the receiving cavity can accommodate the fireproof putty, preventing it from falling out. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the fireproof cable conduit and the cable according to an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the cylindrical structure formed by the clamping member in a fireproof cable conduit according to an embodiment of this application, along the depth direction.

[0021] Figure 3 This is a cross-sectional view along the plane containing the centerline of the connection structure between the fireproof cable conduit and the cable according to an embodiment of this application.

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 This is a schematic diagram of the structure of two clamping members in a fireproof cable conduit according to an embodiment of this application.

[0024] Figure 6 This is a cross-sectional view along the plane containing the centerline of a cylindrical structure consisting of clamping components in a fireproof cable conduit according to an embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the clamp structure in a fireproof cable conduit according to an embodiment of this application.

[0026] In the figure, 10 is the cable; 100 is the sleeve; 200 is the clamping part; 201 is the receiving cavity; 210 is the main body; 220 is the snap-fit ​​part; 221 is the first snap-fit ​​structure; 2211 is the extension section; 2212 is the snap-fit ​​section; 222 is the second snap-fit ​​structure; 2221 is the first snap-fit ​​groove; 2222 is the second snap-fit ​​groove; 230 is the abutment part; 300 is the clamp; and 310 is the retaining ring. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying 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 that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] See Figure 1 and Figure 5 , Figure 1 This invention illustrates a schematic diagram of the connection between a fireproof cable conduit and a cable in one embodiment of this application. Figure 5 A schematic diagram of the clamping component of a fireproof cable conduit according to an embodiment of this application is shown. An embodiment of this application provides a fireproof cable conduit including a sleeve 100 and clamping components 200. The sleeve 100 is used to fit around the outer periphery of a cable 10. Two clamping components 200 are provided, each including a main body 210, a snap-fit ​​portion 220, and an abutment portion 230. The snap-fit ​​portion 220 is connected to the main body 210, and the snap-fit ​​portions 220 of the two clamping components 200 snap together so that the main bodies 210 of the two clamping components 200 enclose each other to form a cylindrical structure. The cylindrical structure is fitted around the outer periphery of one end of the sleeve 100. That is, only one end of the sleeve 100 is fitted inside the cylindrical structure, and the other end of the sleeve 100 is located outside the cylindrical structure. The abutment portion 230 is connected to the opposite side of the main body portion 210. The abutment portions 230 of the two clamping members 200 are arranged in a circle and abut against the outer periphery of the cable 10. The diameter of the opening formed by the abutment portions 230 is smaller than the diameter of the opening of the cylindrical structure, so that the main body portion 210, the side of the abutment portion 230 facing away from the sleeve 100 and the cable 10 form a receiving cavity 201, which is used to fill fireproof putty (not shown in the figure).

[0034] like Figure 1 and Figure 5As shown, the sleeve 100 is fitted around the outer periphery of the cable 10 to protect the cable 10 from impact damage or rainwater erosion, thereby improving the service life of the cable 10. In the clamping member 200, the main body 210 is a semi-circular plate structure, and the snap-fit ​​part 220 is connected to the outer wall of the main body 210. When two clamping members 200 are brought close together, the two snap-fit ​​parts 220 snap into place. When the snap-fit ​​parts 220 of the two clamping members 200 snap into place, the two main bodies 210 enclose each other to form a cylindrical structure. When the two clamping members 200 are joined to form a cylindrical structure, the abutting parts 230 of the two clamping members 200 are arranged in a closed manner, that is, an opening is formed between the two abutting parts 230. The cable 10 passes through the opening between the abutting parts 230, and the opposing sidewalls of the two abutting parts 230 abut against the outer wall of the cable 10. At this time, the enclosed structure formed by the two abutting parts 230 separates the two ends of the cylindrical structure. The portion of the cylindrical structure below the abutment portion 230 is fitted around the outer periphery of the sleeve 100 to improve the sealing of the end of the sleeve 100. The opening diameter of the cylindrical structure is larger than the opening diameter formed by the two abutment portions 230, so that the portion of the cylindrical structure above the abutment portion 230 forms a receiving cavity 201 between the cylindrical structure and the cable 10. Fireproof putty is filled into the receiving cavity 201, so that the two clamping members 200 are sealed. The side wall of the main body portion 210 of the clamping member 200 can provide support for the fireproof putty, effectively preventing the fireproof putty from falling off.

[0035] It should be noted that the lower end of the cylindrical structure (i.e. the part of the cylindrical structure below the abutment portion 230) is fitted around the outer periphery of the upper end of the sleeve 100, and the inner wall of the cylindrical structure abuts against the outer wall of the sleeve 100 to improve the sealing of the upper end of the sleeve 100 and prevent rainwater from entering the interior of the sleeve 100 through the opening at the upper end of the sleeve 100 to form water accumulation and corrode the cable 10.

[0036] During installation, the fireproof cable conduit is fitted over the outer periphery of the cable 10. Two clamping members 200 are positioned at one end of the conduit 100, with the other two clamping members 200 positioned on opposite sides of the cable 10. The two clamping members 200 are brought close together so that the two main body parts 210 align, and the two locking parts 220 are engaged to fix the two clamping members 200 relative to each other, forming a cylindrical structure fitted over the outer periphery of the cable 10. Fireproof putty is filled into the receiving cavity 201 to improve the sealing between the two clamping members 200, preventing rainwater and other substances from entering the conduit 100 through the ends of the conduit near the clamping members 200.

[0037] Through the above configuration, a receiving cavity 201 can be formed at the end of the cable protection structure (i.e., sleeve 100). The receiving cavity 201 is used to place fireproof putty and can effectively prevent the fireproof putty from falling off and failing, thus ensuring high stability. The two clamping members 200 enclose to form a cylindrical structure, and the end of the sleeve 100 is enclosed inside the cylindrical structure. The cylindrical structure, together with the fireproof putty, has good sealing performance, effectively preventing rainwater and other fluids from entering the interior of the sleeve 100 through the gap between the end of the sleeve 100 and the cable 10.

[0038] See Figure 1 and Figure 2 In some embodiments, the diameter of the opening formed by the abutment portion 230 is smaller than the outer diameter of the cable 10.

[0039] It should be noted that, since the cable 10 is usually provided with a cable sheath made of a relatively soft material, with the above-mentioned arrangement, when the two clamping members 200 cooperate to form a cylindrical structure and are sleeved on the outer periphery of the cable 10, the opposing sidewalls of the two abutting parts 230 will squeeze the cable sheath of the cable 10, causing the cable sheath to undergo slight deformation (indentation), thereby effectively improving the abutting seal between the abutting part 230 and the cable 10.

[0040] See Figure 3 and Figure 4 In some embodiments, the abutment portion 230 is welded to the outer wall of the cable 10.

[0041] The opposing sidewalls of the two abutment portions 230 are welded to the outer wall of the cable 10 to fix the abutment portions 230 to the cable 10 and to fully seal the gap between the abutment portions 230 and the outer wall of the cable 10, thereby further improving the sealing performance between the abutment portions 230 and the cable 10.

[0042] See Figure 5 In some embodiments, the main body 210, the snap-fit ​​portion 220, and the abutment portion 230 are integrally formed.

[0043] It should be noted that, compared to a structure where the main body 210, the snap-fit ​​part 220, and the abutment part 230 are separate components connected by insertion or other means, integrated molding avoids gaps or unstable connections among the three components. This design improves the overall strength and sealing of the clamping member 200.

[0044] Furthermore, the clamping component 200 can be made of materials such as plastic or metal, which can ensure the overall strength of the clamping component 200, while the molding process of plastic and metal is relatively mature and the raw materials are easy to obtain, making it convenient for processing and production.

[0045] See Figure 5In some embodiments, the snap-fit ​​portion 220 includes a first snap-fit ​​structure 221 and a second snap-fit ​​structure 222, which are respectively disposed at both ends of the main body portion 210. The first snap-fit ​​structure 221 of the clamping member 200 engages with the second snap-fit ​​structure 222 of the other clamping member 200.

[0046] Each clamping member 200 is provided with a first engaging structure 221 and a second engaging structure 222, which are respectively located at both ends of the main body 210. When the two clamping members 200 are engaged, the first engaging structure 221 of one clamping member 200 engages with the second engaging structure 222 of the other clamping member 200, and the second engaging structure 222 of one clamping member 200 engages with the first engaging structure 221 of the other clamping member 200. Through the above arrangement, the two ends of the two main body 210 are fixed together, effectively improving the connection stability of the two clamping members 200.

[0047] See Figure 5 In some embodiments, the first snap-fit ​​structure 221 includes an extension 2211 and a snap-fit ​​section 2212, the width of the snap-fit ​​section 2212 being greater than the width of the extension 2211; the second snap-fit ​​structure 222 includes a first snap-fit ​​groove 2221 and a second snap-fit ​​groove 2222, the extension 2211 being disposed corresponding to the first snap-fit ​​groove 2221, and the snap-fit ​​section 2212 being snapped into the interior of the second snap-fit ​​groove 2222 to restrict the snap-fit ​​section 2212 from moving in a direction opposite to the two clamping members 200.

[0048] Both the extension segment 2211 and the snap-fit ​​segment 2212 are plate-like structures. One end of the extension segment 2211 is connected to the main body 210 and extends away from the main body 210. The snap-fit ​​segment 2212 is connected to the other end of the extension segment 2211. The width of the snap-fit ​​segment 2212 is greater than the width of the extension segment 2211. It should be noted that the width of the extension segment 2211 refers to its length perpendicular to its extension direction, and the width of the snap-fit ​​segment 2212 refers to its length perpendicular to the extension direction of the extension segment 2211. For ease of understanding, let's consider... Figure 5 Taking the shown perspective as an example, the aforementioned widths correspond to the extension segment 2211 and the snap-fit ​​segment 2212 respectively. Figure 5 The length in the vertical direction is shown. In the vertical direction, the snap-fit ​​section 2212 protrudes beyond the extension section 2211.

[0049] The first locking groove 2221 and the second locking groove 2222 are connected. The shape of the first locking groove 2221 corresponds to the extension section 2211, and the shape of the second locking groove 2222 corresponds to the locking section 2212. When the two clamping members 200 are engaged, the locking section 2212 is engaged in the second locking groove 2222, and the inner sidewall of the second locking groove 2222 abuts against the sidewall of the locking section 2212 to restrict the movement of the locking section 2212 in the opposite direction of the two clamping members 200. It should be noted here that the opposite direction of the movement of the two clamping members 200 is... Figure 5 As shown in the left-right direction. With the above settings, it can be ensured that the two clamping parts 200 are not easily disengaged after being engaged with each other by the snap-fit ​​section 2212 and the second snap-fit ​​groove 2222, thereby improving the installation stability of the clamping parts 200.

[0050] Furthermore, since the outer wall of the cable 10 is made of an elastic material, when the two clamping members 200 form a cylindrical structure and are fitted around the outer periphery of the cable 10, the abutment portion 230 presses against the cable sheath of the cable 10. At this time, the cable sheath provides an outward elastic force to the abutment portion 230. Under the elastic force of the cable sheath, the two clamping members 200 tend to move away from each other. Under the elastic force of the cable sheath, the snap-fit ​​section 2212 presses against the inner wall of the second snap-fit ​​groove 2222, making the snap-fit ​​between the snap-fit ​​section 2212 and the second snap-fit ​​groove 2222 tighter. Through the above arrangement, the cable sheath of the cable 10 and the two clamping members 200 can achieve a force balance, improving the sealing performance between the abutment portion 230 and the cable 10, while making the snap-fit ​​between the two clamping members 200 tighter, effectively improving the overall structural stability of this fireproof cable conduit.

[0051] See Figure 1 and Figure 7 In some embodiments, the fireproof cable conduit also includes a clamp 300, which is fitted onto the end of the sleeve 100 away from the clamping member 200.

[0052] The clamp 300 is fitted around the lower end of the sleeve 100 and is used to clamp the sleeve 100 so that the lower end of the sleeve 100 is in close contact with the cable 10. This arrangement improves the sealing between the end of the sleeve 100 and the cable 10.

[0053] It should be noted that the clamp 300 is used in situations where the clamping member 200 is not suitable, such as when the end of the sleeve 100 is located in a small space, such as a gap between buildings, where the clamping member 200 is too large to install. The clamp 300 is used to replace the clamping member 200 to seal the end of the sleeve 100, ensuring the airtightness of the sleeve 100 even in confined spaces, thus improving the practicality of the fireproof cable conduit.

[0054] See Figure 1 and Figure 7 In some embodiments, the clamp 300 includes two retaining rings 310, one end of which is hinged to one end of the other retaining ring 310, and the other end of which is detachably connected to the other end of the other retaining ring 310.

[0055] Both retaining rings 310 are semi-circular rings, with one end of each ring hinged together, allowing them to rotate around the hinge point so that their other ends can move closer or further apart. The detachably connected ends of the two retaining rings 310 abut against each other, forming a ring-shaped clamp 300 that is fitted onto the outer circumference of the sleeve 100. For ease of description, the hinged end of the two retaining rings 310 is referred to as the fixed end, and the detachably connected end is referred to as the movable end. When installing the clamp 300, the movable ends of the two retaining rings 310 are moved away from each other, and the sleeve 100 is positioned between them. Then, the movable ends of the two retaining rings 310 are brought closer together and abut against each other, so that the two retaining rings 310 surround the outer circumference of the sleeve 100. Connecting the movable ends of the two retaining rings completes the installation of the clamp 300.

[0056] It should be noted that the movable ends of the two retaining rings 310 can be detachably connected by bolts or clips. In some embodiments, both movable ends of the two retaining rings 310 have threaded through holes. When the movable ends of the two retaining rings 310 abut each other, bolts are simultaneously inserted into the threaded through holes of both retaining rings 310 to fix the movable ends of the two retaining rings 310 together. In other embodiments, both movable ends of the two retaining rings 310 have clips. When the movable ends of the two retaining rings 310 abut each other, the clips on the two retaining rings 310 engage to fix the movable ends of the two retaining rings 310 together. With the above configuration, the movable ends of the two retaining rings 310 can be connected, and the disassembly and assembly operations are simple and convenient.

[0057] See Figure 5 and Figure 6 In some embodiments, the sidewalls of the abutment portions 230 of the two clamping members 200 abut against each other in the axial direction along the main body portion 210. This arrangement allows the two abutment portions 230 to fit more tightly, improving the sealing performance between them.

[0058] In some embodiments, the abutment portion 230 is disposed along the side wall of the main body portion 210, and both ends of the abutment portion 230 protrude beyond the main body portion 210, that is, the ends of the abutment portion 230 extend beyond the side of the main body portion 210. With this arrangement, when the two clamping members 200 are engaged, both ends of the abutment portion 230 can extend to the inner wall of the main body portion 210 of the other clamping member 200, thereby improving the fit between the two clamping members 200. It should be noted that, with the above arrangement, the abutment portions 230 of the two clamping members 200 need to be staggered to avoid the ends of the two abutment portions 230 abutting against each other, which would prevent the two clamping members 200 from engaging properly. The two abutment portions 230 are as follows... Figure 6 As shown in the misaligned arrangement, when the two clamping members 200 are engaged, the upper surface of the end of one abutting part 230 abuts against the lower surface of the end of the other abutting part 230. At this time, the ends of the two abutting parts 230 coincide. By misaligning the two abutting parts 230 and bringing the two clamping members 200 closer to each other in the vertical direction, the sealing performance of the two abutting parts 230 can be further improved, resulting in a better sealing effect.

[0059] See Figure 1 , Figure 3 and Figure 4 In some embodiments, the fireproof cable conduit further includes a sealing ring (not shown in the figure), which is disposed between the sleeve 100 and the cylindrical structure. The sealing ring is sleeved on the outer periphery of the sleeve 100, and the cylindrical structure is sleeved on the outer periphery of the sealing ring.

[0060] A sealing ring is located at the lower end of the cylindrical structure, between the cylindrical structure and the sleeve 100. This arrangement effectively improves the sealing performance between the lower end of the cylindrical structure and the sleeve 100, preventing rainwater and other fluids from entering the interior of both structures through the gap between them.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fireproof cable conduit, characterized in that, include: casing; Two clamping members are provided, each including a main body, a snap-fit ​​portion, and an abutment portion. The snap-fit ​​portion is connected to the main body, and the snap-fit ​​portions of the two clamping members snap together to form a cylindrical structure with the main bodies of the two clamping members enclosing each other. The cylindrical structure is located at one end of the sleeve. The abutment portion is connected to the opposite side of the main body, and the abutment portions of the two clamping members are arranged to surround and abut against the outer periphery of the cable. The opening diameter formed by the abutment portions is smaller than the opening diameter of the cylindrical structure, so that the main body, the side of the abutment portion facing away from the sleeve, and the cable enclose to form a receiving cavity, which is used to fill fireproof putty.

2. The fireproof cable conduit according to claim 1, characterized in that, The diameter of the opening formed by the abutment portion is smaller than the outer diameter of the cable.

3. The fireproof cable conduit according to claim 1, characterized in that, The abutting part is welded to the outer wall of the cable.

4. The fireproof cable conduit according to claim 1, characterized in that, The main body, the snap-fit ​​part, and the abutment part are integrally formed.

5. The fireproof cable conduit according to claim 1, characterized in that, The latching part includes a first latching structure and a second latching structure, which are respectively located at both ends of the main body. The first latching structure of the clamping member engages with the second latching structure of the other clamping member.

6. The fireproof cable conduit according to claim 5, characterized in that, The first snap-fit ​​structure includes an extension section and a snap-fit ​​section, the width of which is greater than the width of the extension section; the second snap-fit ​​structure includes a first snap-fit ​​groove and a second snap-fit ​​groove, the extension section is provided corresponding to the first snap-fit ​​groove, and the snap-fit ​​section is snapped into the interior of the second snap-fit ​​groove to restrict the snap-fit ​​section from moving in the opposite direction of the two clamping members.

7. The fireproof cable conduit according to claim 1, characterized in that, It also includes a clamp, which is fitted onto the end of the sleeve away from the clamping member.

8. The fireproof cable conduit according to claim 7, characterized in that, The clamp includes two retaining rings, one end of which is hinged to one end of the other retaining ring, and the other end of which is detachably connected to the other end of the other retaining ring.

9. The fireproof cable conduit according to claim 1, characterized in that, The sidewalls of the abutting portions of the two clamping members abut against each other.

10. The fireproof cable conduit according to claim 1, characterized in that, It also includes a sealing ring, which is disposed between the sleeve and the cylindrical structure. The sealing ring is sleeved on the outer periphery of the sleeve, and the cylindrical structure is sleeved on the outer periphery of the sealing ring.

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