Fire-resistant cable trough box horizontal tee joint

Abstract

The utility model relates to a fire-resistant cable trough box horizontal tee joint, which belongs to the technical field of cable trough box horizontal tee joints and comprises a cylindrical cable trough box, a wire inlet cylinder is arranged on the cylindrical cable trough box, two wire outlet cylinders are arranged on the cylindrical cable trough box, and a cover sealing structure and a control structure are arranged on the cylindrical cable trough box. According to the fire-resistant cable trough box horizontal tee joint, a threaded sleeve is rotated, an abutting part in threaded connection with the interior of the threaded sleeve is controlled to move to the left side, then two abutting blocks in the abutting part move to the leftmost side, limitation on fixing blocks is relieved, a worker uses two fingertips to extrude the two fixing blocks towards the opposite sides, and the two fixing blocks are fixed to the left side and the right side; during assembly, the sealing cover only needs to be embedded into the position of the limiting strip in the cylindrical cable trough box and then the threaded sleeve is rotated reversely, so that convenience is brought to disassembly, assembly and maintenance of workers.

Description

Technical Field

[0001] This utility model relates to the technical field of horizontal tee for cable trays, specifically a horizontal tee for fire-resistant cable trays. Background Technology

[0002] A horizontal tee for cable trays is an accessory used in cable laying systems. Its main function is to enable horizontal branch connections within cable trays, allowing cables to be laid from a main tray to two or more branch trays in different directions. This ensures the rational planning and orderly distribution of cable laying paths. Horizontal tees for cable trays are made of metal or flame-retardant plastic, possessing excellent fire resistance and flame-retardant properties, making them suitable for use in industrial environments, substations, and other similar locations. A horizontal tee has three connection ports: one main port and two branch ports. The shape and size of these ports match the connected cable trays, ensuring a tight and secure connection. The port edges are typically treated, such as folded edges on metal ports and rounded edges on plastic ports, to prevent damage to cables when entering or exiting the ports.

[0003] In current technology, after the horizontal tee of the cable tray is laid, the cable can be branched out through the horizontal tee. Then, the cover plate needs to be installed in the cable tray with several fixing screws. However, during maintenance, the cover plate needs to be removed. Since the screw fixing method is used, each time it is disassembled and reassembled, the staff needs to manually loosen and tighten multiple fixing screws, which makes maintenance quite troublesome. Therefore, a fire-resistant cable tray horizontal tee is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a horizontal tee for fire-resistant cable trays, which has the advantages of quick disassembly and maintenance. It solves the problem that after the horizontal tee for cable trays is laid, cables can be branched out through the horizontal tee, and then several fixing screws are needed to install the cover plate in the cable tray. During maintenance, the cover plate needs to be removed, and the screw fixing method requires workers to manually loosen and tighten multiple fixing screws each time, which makes maintenance more troublesome.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant cable tray horizontal tee, including a cylindrical cable tray, an inlet tube provided on the cylindrical cable tray, two outlet tubes provided on the cylindrical cable tray, and a cover structure and a control structure provided on the cylindrical cable tray;

[0006] The sealing structure includes a sealing cover embedded inside a cylindrical cable tray. The cylindrical cable tray has a limiting component inside to restrict the embedding depth of the sealing cover. The top and bottom of the cylindrical cable tray are provided with mounting grooves. A fixing block with one end penetrating and extending into the cylindrical cable tray is slidably installed inside each of the two mounting grooves. The two mounting grooves are provided with anti-detachment components to prevent the fixing blocks from falling off. An abutment component for abutting the two fixing blocks is slidably installed on the outer surface of the cylindrical cable tray.

[0007] Furthermore, the control structure includes a threaded sleeve rotatably mounted on the outer surface of the cylindrical cable tray and used to control the left and right movement of the abutment component. The outer surface of the cylindrical cable tray is provided with a support component for supporting the rotation of the threaded sleeve, and an anti-slip strip is fixedly installed on the outer surface of the threaded sleeve.

[0008] Furthermore, the inlet tube is fixedly installed on the back of the cylindrical cable tray, and the two outlet tubes are fixedly installed on the top and bottom of the cylindrical cable tray, respectively.

[0009] Furthermore, the limiting component includes two limiting strips, which are respectively fixedly installed on the front and rear side walls of the inner cavity of the cylindrical cable tray, and the two limiting strips respectively contact the sealing cover.

[0010] Furthermore, both of the anti-detachment components include a rectangular block and a limiting groove. The rectangular block is fixedly installed between the front and rear side walls of the inner cavity of the mounting groove. The limiting groove is opened inside the fixed block, and the inner wall of the limiting groove is slidably connected to the outer surface of the rectangular block.

[0011] Furthermore, the abutting component includes a connecting ring and two abutting blocks. One end of each of the two abutting blocks passes through the interior of two mounting slots. The two abutting blocks are fixedly connected to the inner peripheral wall of the connecting ring. The connecting ring is slidably mounted on the outer surface of the cylindrical cable tray.

[0012] Furthermore, the supporting component includes a bearing, which is fixedly installed on the outer surface of the cylindrical cable tray. The outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the threaded sleeve, and the inner peripheral wall of the threaded sleeve is threadedly connected to the connecting ring.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This fire-resistant cable trough horizontal tee features a cover and control structure. A rotating threaded sleeve moves the threaded connection's abutment component inside the sleeve to the left, causing the two abutment blocks within the abutment component to move to the far left. This releases the restriction on the fixing blocks. Workers can then use their fingertips to press the two fixing blocks towards opposite sides and pull the sealing cover for quick removal. During assembly, simply insert the sealing cover into the limiting strip position in the cylindrical cable trough, rotate the threaded sleeve in the opposite direction, and move the abutment component to the right. The abutment component presses and fixes the two fixing blocks, securing the sealing cover with the two extended fixing blocks. This facilitates disassembly, assembly, and maintenance, enhancing the practicality of the fire-resistant cable trough horizontal tee. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;

[0017] Figure 3 This is a three-dimensional schematic diagram of the threaded sleeve, anti-slip strip, and abutment component of this utility model.

[0018] In the diagram: 1. Cylindrical cable tray; 2. Inlet cable tray; 3. Outlet cable tray; 41. Sealing cover; 42. Limiting component; 43. Mounting groove; 44. Fixing block; 45. Anti-detachment component; 46. Abutment component; 47. Threaded sleeve; 48. Support component; 49. Anti-slip strip. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 The fire-resistant cable tray horizontal tee in this embodiment includes a cylindrical cable tray 1, an inlet tube 2 and two outlet tubes 3 on the cylindrical cable tray 1, and a cover structure and a control structure on the cylindrical cable tray 1. The inlet tube 2 is fixedly installed on the back of the cylindrical cable tray 1, and the two outlet tubes 3 are fixedly installed on the top and bottom of the cylindrical cable tray 1, respectively.

[0021] In this embodiment, the sealing structure includes a sealing cover 41 embedded inside the cylindrical cable tray 1. Inside the cylindrical cable tray 1, a limiting component 42 is provided to restrict the embedding depth of the sealing cover 41. The limiting component 42 includes two limiting strips, which are respectively fixedly installed on the front and rear side walls of the inner cavity of the cylindrical cable tray 1. The two limiting strips contact the sealing cover 41 to limit the embedding depth of the sealing cover 41 inside the cylindrical cable tray 1. Mounting grooves 43 are provided at the top and bottom of the cylindrical cable tray 1. A fixing block 44, with one end penetrating and extending into the interior of the cylindrical cable tray 1, is slidably mounted inside each mounting groove 43. This allows for the use of two fixing blocks 44 extending into the cylindrical cable tray 1 to fix the sealing cover 41. The interior of each of the two mounting slots 43 is provided with anti-detachment components 45 to prevent the fixing blocks 44 from falling off. The outer surface of the cylindrical cable tray 1 is slidably mounted with abutting components 46 for abutting the two fixing blocks 44. The abutting components 46 include a connecting ring and two abutting blocks. One end of each abutting block penetrates into the interior of the two mounting slots 43. The two abutting blocks are fixedly connected to the inner circumferential wall of the connecting ring. The connecting ring is slidably mounted on the outer surface of the cylindrical cable tray 1, which facilitates the use of the two abutting blocks to hold the two fixing blocks 44 in place.

[0022] Both anti-detachment components 45 include a rectangular block and a limiting groove. The rectangular block is fixedly installed between the front and rear side walls of the inner cavity of the mounting groove 43. The limiting groove is opened inside the fixed block 44. The inner wall of the limiting groove is slidably connected to the outer surface of the rectangular block to restrict the movement trajectory of the fixed block 44 and prevent the fixed block 44 from detaching.

[0023] By adopting the above technical solution, the sealing cover 41 is embedded inside the cylindrical cable tray box 1 and abuts against the limiting strip in the limiting component 42. Then, the control structure drives the abutting component 46 to move to the right. The abutting block in the abutting component 46 squeezes the fixing block 44, thereby squeezing the fixing block 44 out of the mounting groove 43. The sealing cover 41 is fixed by the parts extending from the two mounting grooves 43, thus completing the installation of the sealing cover 41.

[0024] In this embodiment, the control structure includes a threaded sleeve 47 rotatably mounted on the outer surface of the cylindrical cable tray 1 and used to control the left and right movement of the abutment component 46. The outer surface of the cylindrical cable tray 1 is provided with a support component 48 for supporting the rotation of the threaded sleeve 47. The support component 48 includes a bearing, which is fixedly mounted on the outer surface of the cylindrical cable tray 1. The outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the threaded sleeve 47. The inner peripheral wall of the threaded sleeve 47 is threadedly connected to the connecting ring, which facilitates the use of the bearing to support the rotation of the threaded sleeve 47. At the same time, rotating the threaded sleeve 47 can control the left and right movement of the connecting ring. An anti-slip strip 49 is fixedly mounted on the outer surface of the threaded sleeve 47.

[0025] Using the above technical solution, the threaded sleeve 47, which is installed by rotating the outer surface of the cylindrical cable tray 1 via the anti-slip strip 49, moves the connecting ring of the threaded connection inside the threaded sleeve 47 to the left, thereby driving the two abutment blocks to move to the leftmost side of the installation groove 43. Then, the worker squeezes the two fixing blocks 44 to the opposite side with two fingers, and then pulls out the sealing cover 41.

[0026] The working principle of the above embodiments is as follows:

[0027] When the fire-resistant cable tray box is in horizontal tee position, during maintenance, the threaded sleeve 47 installed on the outer surface of the cylindrical cable tray box 1 is rotated by the anti-slip strip 49, causing the connecting ring of the threaded connection inside the threaded sleeve 47 to move to the left, thereby driving the two abutment blocks to move to the leftmost side of the mounting groove 43. Then, the worker uses two fingers to squeeze the two fixing blocks 44 to opposite sides, and then pulls out the sealing cover 41. After maintenance, the sealing cover 41 is inserted into the cylindrical cable tray box 1 and abuts against the limiting strip in the limiting component 42. Then, the threaded sleeve 47 is rotated in the opposite direction, thereby controlling the abutment component 46 to move to the right. The abutment block in the abutment component 46 is used to squeeze the fixing block 44, thereby squeezing the fixing block 44 out of the mounting groove 43. The sealing cover 41 is then fixed by the parts extending from the two mounting grooves 43, thus completing the installation of the sealing cover 41.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] 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 fire-resistant cable tray horizontal tee, comprising a cylindrical cable tray (1), characterized in that: The cylindrical cable tray (1) is provided with an inlet tube (2), and the cylindrical cable tray (1) is provided with two outlet tubes (3). The cylindrical cable tray (1) is provided with a cover structure and a control structure. The sealing structure includes a sealing cover (41) embedded inside the cylindrical cable tray (1). The cylindrical cable tray (1) is provided with a limiting component (42) to limit the embedding depth of the sealing cover (41). The top and bottom of the cylindrical cable tray (1) are provided with mounting grooves (43). The two mounting grooves (43) are slidably installed with a fixing block (44) that extends through one end and into the cylindrical cable tray (1). The two mounting grooves (43) are provided with an anti-detachment component (45) to prevent the fixing block (44) from falling off. The outer surface of the cylindrical cable tray (1) is slidably installed with an abutting component (46) to abut against the two fixing blocks (44).

2. The fire-resistant cable tray horizontal tee according to claim 1, characterized in that: The control structure includes a threaded sleeve (47) rotatably mounted on the outer surface of the cylindrical cable tray (1) and used to control the left and right movement of the abutment component (46). The outer surface of the cylindrical cable tray (1) is provided with a support component (48) for supporting the rotation of the threaded sleeve (47). The outer surface of the threaded sleeve (47) is fixedly mounted with an anti-slip strip (49).

3. A fire-resistant cable tray horizontal tee according to claim 1, characterized in that: The inlet tube (2) is fixedly installed on the back of the cylindrical cable tray (1), and the two outlet tubes (3) are fixedly installed on the top and bottom of the cylindrical cable tray (1) respectively.

4. A fire-resistant cable tray horizontal tee according to claim 1, characterized in that: The limiting component (42) includes two limiting strips, which are fixedly installed on the front and rear side walls of the inner cavity of the cylindrical cable tray (1), and the two limiting strips are in contact with the sealing cover (41).

5. A fire-resistant cable tray horizontal tee according to claim 1, characterized in that: Both of the anti-detachment components (45) include a rectangular block and a limiting groove. The rectangular block is fixedly installed between the front and rear side walls of the inner cavity of the mounting groove (43). The limiting groove is opened inside the fixed block (44). The inner wall of the limiting groove is slidably connected to the outer surface of the rectangular block.

6. A fire-resistant cable tray horizontal tee according to claim 2, characterized in that: The abutting component (46) includes a connecting ring and two abutting blocks. One end of each of the two abutting blocks passes through the interior of the two mounting slots (43). The two abutting blocks are fixedly connected to the inner circumferential wall of the connecting ring. The connecting ring is slidably installed on the outer surface of the cylindrical cable tray (1).

7. A fire-resistant cable tray horizontal tee according to claim 2, characterized in that: The support component (48) includes a bearing, which is fixedly installed on the outer surface of the cylindrical cable tray (1). The outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the threaded sleeve (47), and the inner peripheral wall of the threaded sleeve (47) is threadedly connected to the connecting ring.

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