Cable flame-retardant powder uniform applying device

Abstract

The utility model belongs to the field of cable processing, particularly relates to a cable flame-retardant powder uniform applying device, and aims to solve the problems that an existing powder spray head is fixedly mounted, cannot perform rotary spraying around a cable and is poor in spraying uniformity, and the following scheme is provided: the cable flame-retardant powder uniform applying device comprises a box body, through holes for a cable to penetrate through are formed in the outer walls of the two sides of the box body in a penetrating mode, a powder inlet pipe fixedly penetrates through the surface of the box body, a support is fixedly arranged on the inner wall of the top of the box body, a mounting pipe is fixedly arranged at the bottom of the support, the bottom end of the powder inlet pipe penetrates through the support and is communicated with the mounting pipe, and the inner wall of the mounting pipe is rotationally connected with a rotating pipe. The spray head can be driven to perform rotary spraying around the cable, the powder spraying uniformity is improved, the distance between the guide rollers can be adjusted according to the size of the cable, the application range of the device is widened, connecting covers of different specifications can be prefabricated, the connecting covers can be replaced according to the size of the cable, and powder overflowing is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cable processing technology, and in particular to a device for uniformly applying flame retardant powder to cables. Background Technology

[0002] Cable flame retardant powder is a powdered material specifically designed to improve the flame retardant properties of cables. The main components of cable flame retardant powder typically include compounds such as aluminum hydroxide, magnesium hydroxide, and potassium aluminum silicate, as well as highly efficient flame retardants such as DM95 glassy flame retardant powder. These compounds can rapidly decompose thermally during a fire, releasing large amounts of water vapor and inert gases, thereby effectively increasing the concentration of inert gases in the air and achieving the purpose of suppressing flames and reducing fire intensity.

[0003] A search revealed that patent CN218742776U discloses a powder coating device for ceramicized silicone rubber fire-resistant cables. However, this device has the following shortcomings in use:

[0004] 1. The powder spray nozzle is fixed and cannot be rotated around the cable for spraying, resulting in poor spray uniformity.

[0005] Therefore, we propose a device for uniformly applying flame-retardant powder to cables. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where the powder nozzle is fixed and cannot rotate around the cable for spraying, resulting in poor spraying uniformity. Therefore, this invention proposes a device for uniformly applying flame-retardant powder to cables.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for uniformly applying flame-retardant powder to cables, comprising:

[0009] The box body has through holes on both outer walls for cables to pass through. A powder inlet pipe is fixedly inserted through the surface of the box body. A bracket is fixedly installed on the inner wall of the top of the box body. An installation pipe is fixedly installed at the bottom of the bracket. The bottom end of the powder inlet pipe passes through the bracket and is connected to the installation pipe. A rotating pipe is rotatably connected to the inner wall of the installation pipe. Multiple evenly distributed nozzles are provided on the inner wall of the rotating pipe.

[0010] A guiding mechanism is provided on both outer walls of the housing and is used to guide the cable.

[0011] A drive mechanism is located at the bottom of the bracket and is used to drive the rotating tube to rotate.

[0012] In one possible design, the guiding mechanism includes a fixed frame, which is fixed to one outer wall of the housing. Two slide blocks are slidably connected between the two inner walls of the fixed frame. Guide rollers are rotatably connected to the ends of the two slide blocks that are close to each other. A bidirectional lead screw is rotatably passed between the top inner wall and the bottom inner wall of the fixed frame, and the bidirectional lead screw is threaded through the two slide blocks.

[0013] In one possible design, the drive mechanism includes a protective shell and a connecting ring. The protective shell is fixed to the bottom of the support, and a motor is fixed to the inner wall of the bottom of the protective shell. The output shaft of the motor passes through the protective shell. The connecting ring is fixed to the outer wall of one side of the rotating tube. Synchronous pulleys are fixed to both the output shaft of the motor and the outer wall of the connecting ring. A synchronous belt drives between the two synchronous pulleys.

[0014] In one possible design, annular sealing grooves are provided on both outer walls of the rotating tube, and sealing rings are provided in both sealing grooves, with the sealing rings in contact with the mounting tube.

[0015] In one possible design, connecting pipes are fixed to the inner walls of both sides of the enclosure. The connecting pipes are connected to the through holes. One end of the connecting pipe is threaded with a connecting cap. A connecting hole for a cable to pass through is opened on one side of the connecting cap.

[0016] In one possible design, a door is hinged to one side of the enclosure, and a viewing window is provided on one side of the door.

[0017] In this application, during use, the powder inlet pipe and the powder supply device (the structure and principle of the powder supply device are the same as those of the patent with publication number CN218742776U, so the structure and principle will not be described again) are connected. Then, a suitable connecting cover is installed according to the size of the cable. The cable is passed through the box and the connecting cover. Then, the bidirectional screw is rotated to drive the slide to move, which in turn drives the guide roller to stick to the cable for guidance. Then, the motor is started. Under the action of the synchronous pulley and the synchronous belt, the motor drives the connecting ring and the rotating tube to rotate, which in turn drives the nozzle to rotate. Then, the powder is fed into the feed pipe by the powder supply device. The powder is sprayed onto the surface of the cable through the rotating nozzle to ensure the uniformity of the spraying.

[0018] Beneficial effects: In this utility model, the cable flame retardant powder uniform application device, through the arrangement of multiple structures such as rotating tube, connecting ring and synchronous wheel, can drive the nozzle to rotate and spray around the cable, thereby improving the uniformity of powder spraying;

[0019] In this utility model, the cable flame retardant powder uniform application device, through the setting of multiple structures such as slide, guide roller and bidirectional screw, can adjust the spacing of the guide roller according to the size of the cable, thereby improving the applicability of the device;

[0020] In this utility model, the cable flame retardant powder uniform application device, through the setting of multiple structures such as connecting pipe, connecting cover and connecting hole, can prefabricate connecting covers of different specifications, and replace the connecting covers according to the size of the cable to reduce powder overflow;

[0021] In this invention, the spray head can be driven to rotate and spray around the cable, which improves the uniformity of powder spraying. The spacing of the guide rollers can be adjusted according to the size of the cable, which increases the applicability of the device. Connecting covers of different specifications can be prefabricated and replaced according to the size of the cable to reduce powder overflow. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cable flame retardant powder uniform application device proposed in this utility model.

[0023] Figure 2 This is an exploded structural diagram of a cable flame retardant powder uniform application device proposed in this utility model.

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of a cable flame retardant powder uniform application device proposed in this utility model.

[0025] Figure 4 This is a partial cross-sectional view of a cable flame retardant powder uniform application device proposed in this utility model.

[0026] In the diagram: 1. Box body; 2. Box door; 3. Viewing window; 4. Powder inlet pipe; 5. Through hole; 6. Connecting pipe; 7. Connecting cover; 8. Connecting hole; 9. Fixing frame; 10. Slide seat; 11. Guide roller; 12. Bidirectional lead screw; 13. Bracket; 14. Mounting pipe; 15. Rotating pipe; 16. Nozzle; 17. Protective shell; 18. Connecting ring; 19. Synchronous pulley; 20. Sealing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1: Refer to Figures 1-4 An application device, comprising:

[0029] Box 1 has through holes 5 on both outer walls for cables to pass through. A powder inlet pipe 4 is fixedly inserted through the surface of box 1. A bracket 13 is fixedly installed on the inner wall of the top of box 1. An installation pipe 14 is fixedly installed at the bottom of the bracket 13. The bottom end of the powder inlet pipe 4 passes through the bracket 13 and is connected to the installation pipe 14, so that flame retardant powder can enter the installation pipe 14. A rotating pipe 15 is rotatably connected to the inner wall of the installation pipe 14. The inner wall of the rotating pipe 15 is provided with multiple evenly distributed nozzles 16. When the flame retardant powder passes through the rotating pipe 15, it can be sprayed onto the passing cable through these nozzles 16, ensuring the uniformity of the spraying.

[0030] The guiding mechanism is located on both outer walls of the housing 1 and is used to guide the cable. The guiding mechanism includes a fixed frame 9, which is fixed to one outer wall of the housing 1. Two slide blocks 10 are slidably connected between the inner walls of the two sides of the fixed frame 9. Guide rollers 11 are rotatably connected to the ends of the two slide blocks 10 that are close to each other. A bidirectional screw 12 is rotatably passed between the top inner wall and the bottom inner wall of the fixed frame 9. The bidirectional screw 12 is threaded through the two slide blocks 10. The cable can pass through the two guide rollers 11. When the bidirectional screw 12 is rotated, it can drive the two slide blocks 10 to move closer or further apart, thereby adjusting the distance between the guide rollers 11, which can accommodate cables of different diameters.

[0031] The drive mechanism is located at the bottom of the bracket 13 and is used to drive the rotating tube 15 to rotate. The drive mechanism includes a protective shell 17 and a connecting ring 18. The protective shell 17 is fixed to the bottom of the bracket 13. A motor is fixed to the inner wall of the bottom of the protective shell 17. The output shaft of the motor passes through the protective shell 17. The connecting ring 18 is fixed to the outer wall of one side of the rotating tube 15. Synchronous pulleys 19 are fixed to both the output shaft of the motor and the outer wall of the connecting ring 18. A synchronous belt is connected between the two synchronous pulleys 19. When the motor is working, it can drive the rotating tube 15 to rotate through the synchronous pulleys 19 and the synchronous belt, thereby driving multiple nozzles 16 to rotate around the cable.

[0032] This application can be used in the field of cable processing, or in other fields applicable to this application.

[0033] Example 2: An improved cable flame retardant powder uniform application device based on Example 1, which is applied to the cable processing field;

[0034] In another aspect of this embodiment, annular sealing grooves are provided on both outer walls of the rotating tube 15, and sealing rings 20 are provided in both sealing grooves. The sealing rings 20 are in contact with the mounting tube 14, which can improve the sealing between the rotating tube 15 and the mounting tube 14 and prevent the flame retardant powder from leaking.

[0035] In another aspect of this embodiment, connecting pipes 6 are fixedly provided on both inner walls of the housing 1. The connecting pipes 6 are connected to the through holes 5. One end of the connecting pipe 6 is threaded with a connecting cover 7. A connecting hole 8 for the cable to pass through is provided on one side of the connecting cover 7. Connecting covers 7 with connecting holes 8 of different sizes can be prefabricated so that the diameter of the connecting hole 8 is 0.5-1cm larger than the cable, which facilitates the passage of the cable and reduces the overflow of powder.

[0036] In another aspect of this embodiment, a door 2 is hinged to one side of the housing 1, and a viewing window 3 is provided on one side of the door 2. By opening the door 2, the interior of the housing 1 can be easily cleaned and maintained, while the viewing window 3 facilitates observation of the working condition inside the housing 1, ensuring the normal operation of the device.

[0037] However, as is well known to those skilled in the art, the working principle and wiring method of motors are commonplace and are all conventional methods or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for uniformly applying flame-retardant powder to cables, characterized in that, include: The box (1) has through holes (5) on both sides of the outer wall for the cable to pass through. The powder inlet pipe (4) is fixedly passed through the surface of the box (1). The top inner wall of the box (1) is fixedly provided with a bracket (13). The bottom of the bracket (13) is fixedly provided with an installation pipe (14). The bottom end of the powder inlet pipe (4) passes through the bracket (13) and is connected to the installation pipe (14). The inner wall of the installation pipe (14) is rotatably connected with a rotating pipe (15). The inner wall of the rotating pipe (15) is provided with multiple evenly distributed nozzles (16). The guiding mechanism is installed on both outer walls of the housing (1) and is used to guide the cable. The drive mechanism is located at the bottom of the bracket (13) and is used to drive the rotating tube (15) to rotate.

2. The cable flame retardant powder uniform application device according to claim 1, characterized in that, The guiding mechanism includes a fixed frame (9), which is fixed to one side of the outer wall of the box (1). Two slides (10) are slidably connected between the inner walls of the two sides of the fixed frame (9). Guide rollers (11) are rotatably connected to the two slides (10) at their close ends. A two-way screw (12) is rotatably passed between the top inner wall and the bottom inner wall of the fixed frame (9). The two-way screw (12) is threaded through the two slides (10).

3. The cable flame retardant powder uniform application device according to claim 2, characterized in that, The drive mechanism includes a protective shell (17) and a connecting ring (18). The protective shell (17) is fixed to the bottom of the bracket (13). A motor is fixed to the inner wall of the bottom of the protective shell (17). The output shaft of the motor passes through the protective shell (17). The connecting ring (18) is fixed to the outer wall of one side of the rotating tube (15). Synchronous pulleys (19) are fixed to the outer wall of both the output shaft of the motor and the connecting ring (18). A synchronous belt is connected between the two synchronous pulleys (19).

4. The cable flame retardant powder uniform application device according to claim 3, characterized in that, Both sides of the rotating tube (15) are provided with annular sealing grooves, and both sealing grooves are provided with sealing rings (20), which are in contact with the mounting tube (14).

5. The cable flame retardant powder uniform application device according to claim 4, characterized in that, Connecting pipes (6) are fixed on both inner walls of the box (1). The connecting pipes (6) are connected to the through holes (5). One end of the connecting pipe (6) is threaded with a connecting cover (7). A connecting hole (8) for the cable to pass through is opened on one side of the connecting cover (7).

6. The cable flame retardant powder uniform application device according to claim 5, characterized in that, A door (2) is hinged to one side of the box body (1), and a viewing window (3) is provided on one side of the door (2).

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