High-temperature resistant flame-retardant armored cable assemblies

Abstract

This invention discloses a high-temperature resistant, flame-retardant armored cable assembly, including a cable, a threaded sleeve and a fixing seat fitted onto the cable, the threaded sleeve and the fixing seat being threadedly connected; a sliding tube is slidably disposed on the fixing seat, an inner fastener is slidably disposed on the sliding tube, a sliding rod is slidably disposed on the fixing seat, a guide block is fixedly disposed on the sliding rod, a guide groove is disposed on the inner fastener, the guide block and the guide groove are adapted to each other, and the sliding rod abuts against the threaded sleeve; it also includes an anti-tamper component to restrict the rotation of the threaded sleeve after the cable is fixed; when fixing the cable, the threaded sleeve pushes the sliding rod to slide by screwing the threaded sleeve into the fixing seat, and under the action of the guide block and the guide groove, the inner fastener opens and catches the inside of the distribution box, fixing the cable at the hole in the distribution box, which not only improves the fixing efficiency, but also avoids construction from inside the distribution box, and improves the safety after the cable is fixed by restricting the rotation of the threaded sleeve by the anti-tamper component.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more specifically to high-temperature resistant and flame-retardant armored cable assemblies. Background Technology

[0002] High-temperature flame-retardant armored cables are cables specifically designed for high-temperature, flammable, or high-risk environments. Through special optimization of materials and structure, they possess multiple properties such as high-temperature resistance, flame retardancy, fire prevention, and mechanical protection, and are mainly used to ensure the safety and stability of power transmission or signal transmission.

[0003] During the cable laying and assembly process, it is generally necessary to pass the cable through the reserved holes on the distribution box, and then connect the cable conductor to the circuit breaker, busbar, ammeter and voltmeter inside the distribution box, and fix the cable at the hole in the distribution box.

[0004] In existing technologies, cables are generally fixed by threaded interfaces. That is, the cables are fixed to the holes in the distribution box by screwing the threads on both the inside and outside of the distribution box. If the electrical components installed inside the distribution box are crowded, it will make the operation very cumbersome and easy to accidentally touch the electrical components inside the distribution box, causing damage to the internal components and even causing injury to the construction personnel. Summary of the Invention

[0005] The purpose of this invention is to provide a high-temperature resistant, flame-retardant armored cable assembly to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-temperature resistant and flame-retardant armored cable assembly includes a cable, a threaded sleeve fitted onto the cable, and a fixing seat, wherein the threaded sleeve is threadedly connected to the fixing seat.

[0008] A sliding tube is slidably disposed on the fixed base, an inner fastener is slidably disposed on the sliding tube, a sliding rod is slidably disposed on the fixed base, a guide block is fixedly disposed on the sliding rod, a guide groove is disposed on the inner fastener, the guide block is adapted to the guide groove, and the sliding rod abuts against the threaded sleeve.

[0009] It also includes anti-tamper components to restrict the rotation of the threaded sleeve after the cable is secured;

[0010] The locking assembly locks the sliding tube when the cable is secured, and unlocks the sliding tube when the cable is removed, resets the inner fastener, and releases the anti-tamper assembly from the threaded sleeve.

[0011] Preferably, a return spring is provided between the sliding tube and the inner fastener, and the two ends of the return spring are fixedly connected to the sliding tube and the inner fastener, respectively.

[0012] Preferably, the anti-tampering component includes a limiting block slidably disposed on a fixed base, a plug-in portion disposed on the fixed base, a limiting portion fixedly disposed on the threaded sleeve, the limiting portion and the plug-in portion being plugged into each other, and the limiting block and the limiting portion being snapped into each other.

[0013] Preferably, a lifting rod is slidably disposed on the limiting block, and the lifting rod is slidably connected to the sliding tube;

[0014] The inner fastener is provided with a compensation groove, and the lifting rod abuts against the compensation groove.

[0015] Preferably, a compression spring is provided between the limiting block and the lifting rod, and the two ends of the compression spring are fixedly connected to the limiting block and the lifting rod, respectively.

[0016] Preferably, the locking assembly includes an unlocking pin slidably disposed on a fixed base, a locking block fixedly disposed on the unlocking pin, a locking groove disposed on the sliding tube, and the locking block engaging with the locking groove.

[0017] Preferably, a locking spring is provided between the unlocking pin and the fixed seat, and the two ends of the locking spring are fixedly connected to the unlocking pin and the fixed seat respectively.

[0018] Preferably, it also includes a power storage component, which includes a power storage rod fixedly mounted on the sliding rod, and the power storage rod is slidably connected to the sliding tube.

[0019] Preferably, a storage spring is provided between the storage rod and the sliding tube, and the two ends of the storage spring are fixedly connected to the storage rod and the sliding tube, respectively.

[0020] Preferably, a retaining pin is slidably disposed on the fixing base, the retaining pin abuts against the insulation layer of the cable, and the retaining pin is provided with an inclined surface, which abuts against the threaded sleeve through the inclined surface.

[0021] In the above technical solution, the high-temperature resistant and flame-retardant armored cable assembly provided by the present invention has the following beneficial effects:

[0022] 1. When fixing the cable, the threaded sleeve engages with the fixing seat, and the threaded sleeve pushes the sliding rod to slide. Under the action of the guide block and guide groove, the inner fastener opens and locks into the inside of the distribution box, fixing the cable to the hole in the distribution box. This not only improves the fixing efficiency but also avoids construction from inside the distribution box. Furthermore, the anti-tamper component restricts the rotation of the threaded sleeve, improving the safety of the cable after fixing.

[0023] 2. By setting a locking component, when removing the cable, press from inside the distribution box to unlock the pin, which will allow the inner fastener to detach from the inner wall of the distribution box. At the same time, the anti-tamper component will be released, which will restrict the rotation of the threaded sleeve, thus completing the removal of the fixing seat and the cable.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0025] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0028] Figure 2 This is a cross-sectional view of the overall structure provided in an embodiment of the present invention;

[0029] Figure 3 Provided for embodiments of the present invention Figure 2 Enlarged view of point A in the image;

[0030] Figure 4 This is a schematic diagram of the fixing base structure provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of a threaded sleeve structure provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the internal structure of the fixing base provided in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Cable; 2. Threaded sleeve; 21. Limiting part; 3. Fixing base; 31. Insertion part; 4. Sliding tube; 41. Inner fastener; 42. Guide groove; 43. Compensation groove; 44. Return spring; 45. Locking groove; 5. Unlocking pin; 51. Locking block; 52. Locking spring; 6. Sliding rod; 61. Guide block; 62. Power storage rod; 63. Power storage spring; 7. Limiting block; 71. Lifting rod; 72. Compression spring; 8. Abutment pin. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0036] Please refer to 1-6. A high-temperature resistant, flame-retardant armored cable assembly includes a cable 1, a threaded sleeve 2 fitted onto the cable 1, and a fixing seat 3. The threaded sleeve 2 is threadedly connected to the fixing seat 3. A sliding tube 4 is slidably mounted on the fixing seat 3, an inner fastener 41 is slidably mounted on the sliding tube 4, a sliding rod 6 is slidably mounted on the fixing seat 3, a guide block 61 is fixedly mounted on the sliding rod 6, a guide groove 42 is provided on the inner fastener 41, the guide block 61 is adapted to the guide groove 42, and the sliding rod 6 abuts against the threaded sleeve 2. It also includes a protective... The disassembly component restricts the rotation of the threaded sleeve 2 after the cable 1 is fixed. The locking component locks the sliding tube 4 when the cable 1 is fixed, and unlocks the sliding tube 4 when the cable 1 is removed. The inner fastener 41 resets, and the anti-tamper component's restriction on the threaded sleeve 2 is released. When the cable 1 is fixed to the hole in the distribution box, the fixing seat 3 is inserted into the hole and tightened. Then, the threaded sleeve 2 is screwed in. During the screwing process, the threaded sleeve 2 abuts against the sliding rod 6 and pushes the sliding rod 6 against the guide block. The guide block 61 slides into the guide groove 42 and engages with it, causing the inner fastener 41 to slide open and contact the inner wall of the distribution box, thus fixing the fixing seat 3. This allows the cable 1 to be fixed at the distribution box opening, avoiding the risk of damaging internal components by fixing from inside the distribution box and improving construction safety. After the threaded sleeve 2 and the fixing seat 3 are screwed together, the anti-tamper component restricts the rotation of the threaded sleeve 2, preventing it from rotating out of the distribution box. Rotating the threaded sleeve 2 separates it from the fixing seat 3, improving the safety of the cable 1 after it is fixed. When removing the cable 1 from the distribution box, use a tool inside the distribution box to press the locking component, causing the sliding tube 4 to slide, the inner fastener 41 to reset, and disengage from the inner wall of the distribution box, contacting the fixing seat 3 and the distribution box. Then the threaded sleeve 2 and the fixing seat 3 can be removed from the distribution box. After pressing the locking component, the anti-tamper component contacts and restricts the rotation of the threaded sleeve 2, so the threaded sleeve 2 can be loosened from the fixing seat 3.

[0037] Specifically, a return spring 44 is provided between the sliding tube 4 and the inner fastener 41. The two ends of the return spring 44 are fixedly connected to the sliding tube 4 and the inner fastener 41 respectively. When the threaded sleeve 2 is screwed into the fixed seat 3, the sliding tube 4 does not move. Under the action of the guide block 61 and the guide groove 42, the inner fastener 41 slides upward and fixes the fixed seat 3 at the hole of the distribution box. At this time, the return spring 44 is stretched. When the cable 1 is removed, the sliding tube 4 slides with the inner fastener 41, and the guide groove 42 is disengaged from the guide block 61. Under the action of the return spring 44, the inner fastener 41 slides with the sliding tube 4 and simultaneously slides back on the sliding tube 4. In this way, the inner fastener 41 is disengaged from the inner wall of the distribution box, and the fixed seat 3 can be removed from the hole of the distribution box.

[0038] In a further embodiment of the present invention, the anti-tampering component includes a limiting block 7 slidably disposed on the fixed base 3. The fixed base 3 is provided with a plug-in part 31, and the threaded sleeve 2 is fixedly provided with a limiting part 21. The limiting part 21 is plugged into the plug-in part 31, and the limiting block 7 is snapped into the limiting part 21. When the threaded sleeve 2 is screwed into the fixed base 3, the fixed base 3 is fixed to the hole of the distribution box. After screwing, the limiting part 21 of the threaded sleeve 2 is plugged into the plug-in part 31 on the fixed base 3, and the limiting block 7 slides and snaps into the limiting part 21 to restrict the sliding of the threaded sleeve 2. Since the threaded sleeve 2 is threadedly connected to the fixed base 3, when the threaded sleeve 2 cannot slide, it cannot rotate relative to the fixed base 3, thus preventing the phenomenon of external removal and improving the safety of the fixed base 3 and the cable 1 after installation and fixation.

[0039] Furthermore, a lifting rod 71 is slidably mounted on the limiting block 7, and the lifting rod 71 is slidably connected to the sliding tube 4; a compensation groove 43 is provided on the inner fastener 41, and the lifting rod 71 abuts against the compensation groove 43. When the cable 1 is removed, the sliding tube 4 slides, and the inner fastener 41 slides back to its original position on the sliding tube 4 under the action of the return spring 44. During the reset process, the upper part of the compensation groove 43 abuts against the lifting rod 71 and drives the lifting rod 71 to descend. At the same time, the lifting rod 71 moves the limiting block 7 down, causing the limiting block 7 to disengage from the limiting part 21 on the threaded sleeve 2. Then, the threaded sleeve 2 can be rotated to rotate relative to the fixed seat 3.

[0040] Furthermore, a compression spring 72 is provided between the limiting block 7 and the lifting rod 71. The two ends of the compression spring 72 are fixedly connected to the limiting block 7 and the lifting rod 71, respectively. When the cable 1 is fixed, the threaded sleeve 2 rotates and abuts against the sliding rod 6. Through the cooperation of the guide block 61 on the sliding rod 6 and the guide groove 42, the inner fastener 41 slides, and the bottom of the compensation groove 43 abuts against the lifting rod 71, driving the lifting rod 71 and the limiting block 7 to move upward. During the upward movement, the limiting part 21 of the threaded sleeve 2 inserts into the insertion part. In section 31, the limit part 21 abuts against the inclined surface on the limit block 7, causing the compression spring 72 to compress, so that the limit part 21 can pass through the limit block 7 and complete the insertion with the insertion part 31. After the inner fastener 41 completes the sliding and fixes the fixed seat 3, the lifting rod 71 also completes the rise. The limit part 21 completes the insertion with the insertion part 31, and the limit block 7 loses the pressure of the limit part 21. Under the reset action of the compression spring 72, the limit block 7 slides out and completes the engagement with the limit block 7, thus restricting the threaded sleeve 2.

[0041] In a further embodiment of the present invention, the locking assembly includes an unlocking pin 5 slidably disposed on the fixed base 3, a locking block 51 fixedly disposed on the unlocking pin 5, and a locking groove 45 disposed on the sliding tube 4. The locking block 51 is engaged with the locking groove 45. When the cable 1 is removed, the unlocking pin 5 is pressed from inside the distribution box using a tool, causing the locking block 51 to disengage from the locking groove 45, thereby releasing the lock on the sliding tube 4. At this time, the sliding tube 4 slides with the inner fastener 41, and under the action of the return spring 44, the inner fastener 41 slides on the sliding tube 4, completing the disengagement of the fixed base 3 from the hole in the distribution box, thus improving the efficiency and safety of cable 1 removal.

[0042] In the embodiment provided by the present invention, a locking spring 52 is provided between the unlocking pin 5 and the fixed seat 3. The two ends of the locking spring 52 are fixedly connected to the unlocking pin 5 and the fixed seat 3 respectively. Under the action of the locking spring 52, the locking block 51 engages with the locking groove 45. When the cable 1 is removed, the unlocking pin 5 is pressed to compress the locking spring 52, the locking block 51 disengages from the locking groove 45, the sliding tube 4 slides, and the fixed seat 3 disengages from the hole in the distribution box.

[0043] Specifically, it also includes a power storage component, which includes a power storage rod 62 fixedly mounted on the sliding rod 6. The power storage rod 62 is slidably connected to the sliding tube 4. A power storage spring 63 is provided between the power storage rod 62 and the sliding tube 4. The two ends of the power storage spring 63 are fixedly connected to the power storage rod 62 and the sliding tube 4, respectively. When the threaded sleeve 2 is screwed on, it pushes the sliding rod 6 to slide, and the power storage rod 62 slides at the same time. The power storage spring 63 extends and stores power. When dismantling, the power storage spring 63 drives the sliding tube 4 to slide, which can make the inner fastener 41 separate from the inner wall of the distribution box and complete the removal of the fixing seat 3.

[0044] In a further embodiment of the present invention, a retaining pin 8 is slidably disposed on the fixing base 3. The retaining pin 8 abuts against the insulation layer of the cable 1. The retaining pin 8 is provided with an inclined surface, and abuts against the threaded sleeve 2 through the inclined surface. During the screwing of the threaded sleeve 2, the inclined surface squeezes the retaining pin 8, and the retaining pin 8 clamps the insulation layer of the cable 1.

[0045] It should be noted that the fixing of the cable 1 to the distribution box hole mentioned in this invention is the fixing of the fixing seat 3 to the distribution box hole. During the screwing of the threaded sleeve 2, the abutment pin 8 clamps the insulation layer of the cable 1, completing the fixing between the fixing seat 3 and the cable 1. Then the fixing seat 3 is fixed to the distribution box hole, that is, the cable 1 is fixed to the distribution box hole. At the same time, after the fixing is completed, the fixing point can be sealed by setting a rubber sleeve.

[0046] When installing and fixing cable 1, the cable 1 is stripped in layers, and the insulation layer of cable 1 is passed through the fixing base 3. The steel wire armor layer is set in the conical part of the fixing base 3. Then, the threaded sleeve 2 and the fixing base 3 are initially screwed together, with the steel wire armor layer located between the threaded sleeve 2 and the fixing base 3. Then, cable 1 can be fixed. The fixing base 3 is inserted into the pit of the distribution box and abuts against the distribution box. Then, the threaded sleeve 2 is screwed on. During the screwing process, the threaded sleeve 2 abuts against the inclined surface of the abutment pin 8, and pushes the abutment pin 8 to slide and clamp the insulation layer of cable 1. The threaded sleeve 2 continues to screw on, and pushes the sliding rod 6 to move. The sliding rod 6 slides, causing the guide block 61 to enter the guide groove 42. Because the locking block 51 is engaged with the locking groove 45, the sliding tube 4 cannot slide. The guide block 61, through the compression with the guide groove 42, causes the inner fastener 41 to slide. During the sliding of the inner fastener 41, the return spring 44 is stretched, and the bottom of the compensation groove 43 abuts against the lifting rod 71, causing the lifting rod 71 and the limiting block 7 to slide upward. At the same time, the accumulating rod 62 slides, and the accumulating spring 63 is stretched to store force. As the threaded sleeve 2 is screwed on, because the lifting rod 71 and the limiting block 7 slide upward, the limiting part 21 on the threaded sleeve 2 abuts against the inclined surface on the limiting block 7. When the limiting block 7 is pressed, the compression spring 72 is compressed. The limiting part 21 passes through the limiting block 7. After the threaded sleeve 2 and the fixed seat 3 are screwed together, the limiting part 21 is inserted into the insertion part 31. Under the action of the compression spring 72, the limiting block 7 slides and engages with the limiting part 21, restricting the threaded sleeve 2. The inner fastener 41 slides and contacts the inner wall of the distribution box, fixing the fixed seat 3. The return spring 44 and the storage spring 63 are in a stretched state. During disassembly, the unlocking pin 5 is pressed from inside the distribution box using a tool. The locking spring 52 is compressed, and the locking block 51 disengages from the locking groove 45. Under the action of the storage spring 63, the sliding tube 4 slides with the inner fastener 41. Under the action of the reset spring 44, the inner fastener 41 slides and resets relative to the sliding tube 4. During the reset process, the top of the compensation groove 43 abuts against the lifting rod 71, and the lifting rod 71 slides down. When the lifting rod 71 moves down, it drives the limit block 7 to slide down, so that the limit block 7 is separated from the limit part 21, releasing the restriction on the threaded sleeve 2. Then the fixing seat 3 can be removed from the hole of the distribution box. After removal, the threaded sleeve 2 is loosened, and the inner fastener 41 is pushed to make the sliding tube 4 slide and reset. The locking block 51 and the locking groove 45 are engaged.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-temperature resistant, flame-retardant armored cable assembly, comprising a cable (1), characterized in that, It also includes a threaded sleeve (2) and a fixed seat (3) that are fitted onto the cable (1), wherein the threaded sleeve (2) and the fixed seat (3) are threadedly connected; A sliding tube (4) is slidably disposed on the fixed base (3), an inner fastener (41) is slidably disposed on the sliding tube (4), a sliding rod (6) is slidably disposed on the fixed base (3), a guide block (61) is fixedly disposed on the sliding rod (6), a guide groove (42) is disposed on the inner fastener (41), the guide block (61) is adapted to the guide groove (42), and the sliding rod (6) abuts against the threaded sleeve (2); It also includes anti-tamper components to restrict the rotation of the threaded sleeve (2) after the cable (1) is fixed; The locking assembly locks the sliding tube (4) when the cable (1) is fixed, and unlocks the sliding tube (4) when the cable (1) is removed, the inner fastener (41) is reset, and the anti-tamper assembly restricts the threaded sleeve (2). The anti-tampering component includes a limiting block (7) that is slidably disposed on a fixed base (3), a plug-in part (31) is provided on the fixed base (3), a limiting part (21) is fixedly disposed on the threaded sleeve (2), the limiting part (21) is plugged into the plug-in part (31), and the limiting block (7) is snapped into the limiting part (21). A lifting rod (71) is slidably provided on the limiting block (7), and the lifting rod (71) is slidably connected to the sliding tube (4); The inner fastener (41) is provided with a compensation groove (43), and the lifting rod (71) abuts against the compensation groove (43); The locking assembly includes an unlocking pin (5) slidably disposed on a fixed base (3), a locking block (51) fixedly disposed on the unlocking pin (5), a locking groove (45) disposed on the sliding tube (4), and the locking block (51) engaging with the locking groove (45). A locking spring (52) is provided between the unlocking pin (5) and the fixed seat (3), and the two ends of the locking spring (52) are fixedly connected to the unlocking pin (5) and the fixed seat (3) respectively.

2. The high-temperature resistant, flame-retardant armored cable assembly according to claim 1, characterized in that, A return spring (44) is provided between the sliding tube (4) and the inner fastener (41), and the two ends of the return spring (44) are fixedly connected to the sliding tube (4) and the inner fastener (41) respectively.

3. The high-temperature resistant, flame-retardant armored cable assembly according to claim 1, characterized in that, A compression spring (72) is provided between the limiting block (7) and the lifting rod (71), and the two ends of the compression spring (72) are fixedly connected to the limiting block (7) and the lifting rod (71) respectively.

4. The high-temperature resistant, flame-retardant armored cable assembly according to claim 1, characterized in that, It also includes a power storage component, which includes a power storage rod (62) fixedly mounted on the sliding rod (6) and the power storage rod (62) is slidably connected to the sliding tube (4).

5. The high-temperature resistant, flame-retardant armored cable assembly according to claim 4, characterized in that, A power storage spring (63) is provided between the power storage rod (62) and the sliding tube (4), and the two ends of the power storage spring (63) are fixedly connected to the power storage rod (62) and the sliding tube (4) respectively.

6. The high-temperature resistant, flame-retardant armored cable assembly according to claim 1, characterized in that, The fixed base (3) is slidably provided with an abutment pin (8), which abuts against the insulation layer of the cable (1). The abutment pin (8) is provided with an inclined surface, which abuts against the threaded sleeve (2) through the inclined surface.

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