High-temperature-resistant ultra-soft fluoroplastic insulation branch cable assembly
By combining a memory spring-driven sleeve structure with an activated carbon plate, the problems of sealing failure and increased resistance in branch cable joints under extreme temperatures are solved, thereby improving the durability and safety of branch cables.
Patent Information
- Application Number
- CN202510961195.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-13
- Publication Date
- 2025-11-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In extreme temperature environments, the seals of branch cable joints are prone to failure due to low temperatures or fatigue fracture due to stress concentration caused by alternating hot and cold temperatures, which is difficult to effectively solve with existing technologies.
The sleeve structure driven by memory springs is used to cover the outside of the branch joint for heat preservation and protection at low temperatures, and to house the inside for heat dissipation at high temperatures. Combined with activated carbon plates for airflow treatment, it prevents sealing failure and increased resistance.
It effectively prevents branch joints from failing due to low-temperature sealing and increasing resistance due to high-temperature conditions, thus improving the durability and safety of branch cables. The activated carbon plate achieves the effects of moisture absorption and dust isolation for airflow.
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Figure CN120933857A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cable assembly technology, and more specifically, to high-temperature resistant extra-soft fluoroplastic insulated branch cable assemblies. Background Technology
[0002] High-temperature resistant extra-soft fluoroplastic insulated branch cable is a special cable with fluoroplastics (such as perfluoroethylene propylene FEP and fusible polytetrafluoroethylene PFA) as insulation material, which can work stably in extreme temperature environments.
[0003] However, during actual construction, due to the large outdoor temperature difference, when the ambient temperature is low, the rubber seals in the branch cable joints are prone to lose elasticity, causing the joint seal to fail. At the same time, the root of the prefabricated branch joint is prone to stress concentration due to alternating hot and cold, which can significantly increase the probability of fatigue fracture. Summary of the Invention
[0004] To address the above problems, the present invention provides a high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly.
[0005] This invention provides a high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly, comprising a first half-sleeve, a second half-sleeve, a memory spring, an activated carbon plate, and a locking mechanism. The two first half-sleeves are symmetrically arranged and merged, and then fixed to the outside of the main cable and the branch cable by the locking mechanism. The two second half-sleeves are symmetrically arranged and movably disposed inside the corresponding first half-sleeves. The memory spring is disposed inside the first half-sleeves and the second half-sleeves. At low temperatures, the memory spring drives the second half-sleeve to slide out relative to the first half-sleeve and cover the outside of the branch joint for low-temperature protection. At high temperatures, the memory spring drives the second half-sleeve to be housed inside the first half-sleeve for heat dissipation through the branch joint. The activated carbon plate is detachably installed inside the second half-sleeve. When the second half-sleeve extends or retracts relative to the first half-sleeve, it drives external airflow inward or internal airflow outward to flow rapidly.
[0006] Optionally, the two ends of the memory spring are fixed at the relative positions of the inner sidewalls of the first half-sleeve and the second half-sleeve. A guide mechanism is provided on the inner side of the memory spring, which is used for the stable axial extension and contraction of the memory spring and the stable axial extension and contraction of the second half-sleeve relative to the first half-sleeve.
[0007] Optionally, the guiding mechanism includes a hollow tube and a telescopic rod. The telescopic rod is slidably connected to the inner surface of the hollow tube. The end of the telescopic rod is fixed to the inner wall of the second half-sleeve. The end of the hollow tube is fixed to the inner wall of the first half-sleeve. A groove is formed on the inner circumferential surface of the first half-sleeve. A protruding plate is fixed at the edge of the outer circumferential surface of the second half-sleeve. The protruding plate is slidably connected to the inner surface of the corresponding groove. The outer circumferential surface of the second half-sleeve is slidably connected to the inner circumferential surface of the corresponding first half-sleeve.
[0008] Optionally, a through rectangular groove is provided inside the side wall of the hollow tube, and the interior of the hollow tube is connected to the interior of the first half-sleeve through the rectangular groove.
[0009] Optionally, the second half-sleeve has a through airflow hole at the middle of the end opposite to the first half-sleeve, and the inner diameter of the airflow hole is larger than the outer diameter of the branch joint.
[0010] Optionally, an arc-shaped plate with a matching shape is fixed on the outer periphery of the activated carbon plate, and a rectangular frame is fixed in the middle of the outer periphery of the arc-shaped plate. A limiting plate is fixed on the inner side wall of the second half sleeve. The rectangular frame is slidably sleeved on the outer side of the limiting plate. The rectangular frame and the limiting plate are fastened to each other by a first bolt. The inner peripheral surface of the activated carbon plate is in contact with the outer peripheral surface of the branch joint.
[0011] Optionally, the first half-sleeve has a first semi-circular hole and a second semi-circular hole at the middle of the end opposite to the second half-sleeve, and the main cable and branch cable are fixed in the two merged first semi-circular holes and second semi-circular holes by a locking mechanism.
[0012] Optionally, the locking mechanism includes a mounting plate, a second bolt, and a nut. Mounting plates are symmetrically fixed on both sides of the first half sleeve, and the two mounting plates that fit together are fastened together by the second bolt and the nut.
[0013] Optionally, both the first half-sleeve and the second half-sleeve are made of polytetrafluoroethylene (PTFE).
[0014] The beneficial effects of this invention, the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly, are: 1. The second half sleeve is driven by the memory spring to slide out and cover the outside of the branch joint, so that the temperature generated by the branch joint is retained, and the rubber seal inside the branch joint is protected against low temperature. At the same time, fatigue fracture at the root of the branch joint caused by low temperature is avoided. During this process, the activated carbon plate absorbs moisture and isolates dust from the incoming external airflow. 2. The second half-sleeve is housed inside the first half-sleeve by the retraction of the memory spring, allowing the branch joint to be exposed for heat dissipation and avoiding a surge in resistance of the branch joint due to high temperature. At the same time, it drives the internal hot airflow to flow out quickly, removing moisture and dust from the activated carbon plate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 3This is a schematic diagram of the internal structure of the second half-sleeve extending out of the first half-sleeve in a high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the second half-sleeve housed inside the first half-sleeve in the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the external structure of the arc plate in the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the external and internal structure of the hollow tube in the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the first and second half-sleeve structures in the high-temperature resistant extra-soft fluoroplastic insulated branch cable assembly according to an embodiment of the present invention; Figure 8 for Figure 2 Enlarged view of the structure at point A in the image.
[0016] Explanation of reference numerals in the attached drawings: 101, main cable; 102, branch cable; 103, branch connector; 201, first half sleeve; 202, groove; 203, first semicircular hole; 204, second semicircular hole; 301, second half sleeve; 302, protruding plate; 303, airflow hole; 401, hollow tube; 402, telescopic rod; 403, memory spring; 404, rectangular groove; 501, arc plate; 502, rectangular frame; 503, limiting plate; 504, first bolt; 505, activated carbon plate; 601, mounting plate; 602, second bolt; 603, nut. Detailed Implementation
[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0019] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.
[0020] The terms "first," "second," etc., are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature.
[0021] like Figure 1-8 As shown, this embodiment of the invention provides a high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly, including a first half-sleeve 201, a second half-sleeve 301, a memory spring 403, an activated carbon plate 505, and a locking mechanism. The two first half-sleeves 201 are symmetrically arranged and, after being merged, are fixed to the outside of the main cable 101 and the branch cable 102 by the locking mechanism. The two second half-sleeves 301 are symmetrically arranged and movably disposed inside their corresponding first half-sleeves 201. The memory spring 403 is disposed between the first half-sleeve 201 and the second half-sleeve 302. Inside the cylinder 301, at low temperatures, the memory spring 403 drives the second half-sleeve 301 to slide out relative to the first half-sleeve 201 and cover the outside of the branch joint 103 for low-temperature protection. At high temperatures, the memory spring 403 drives the second half-sleeve 301 to be housed inside the first half-sleeve 201 for heat dissipation from the branch joint 103. The activated carbon plate 505 is detachably installed inside the second half-sleeve 301. When the second half-sleeve 301 extends or retracts relative to the first half-sleeve 201, it drives the external airflow to flow inward or the internal airflow to flow outward rapidly.
[0022] In this embodiment, two first half-sleeves 201 are symmetrically fitted together and sleeved on the outside of the main cable 101 and the branch cable 102, and then fixed together by a locking mechanism. During the power transmission process of the main cable 101, the branch joint 103 has a slightly higher contact resistance and a relatively higher temperature. When the ambient temperature is low, the memory spring 403 drives the second half-sleeve 301 to slide out relative to the first half-sleeve 201 and cover the outside of the branch joint 103 in order to recover its deformation. The surrounding space formed by the symmetrical first half-sleeves 201 and the second half-sleeve 301 covers the branch joint 103, so that the temperature generated by the branch joint 103 is retained in the surrounding space, thus insulating the branch joint 103. This prevents the rubber seal inside the branch joint 103 from losing its elasticity due to low temperature, thus preventing the branch joint 103 from failing to seal due to loss of elasticity, and also prevents fatigue fracture at the root of the branch joint 103 due to stress concentration caused by alternating hot and cold temperatures. 1. When sliding outward, the enclosing space formed by the first half-sleeve 201 and the second half-sleeve 301 becomes larger, thus driving the external airflow to flow rapidly into the enclosing space. When the external airflow flows in, it passes through the activated carbon plate 505, which absorbs the moisture in the external airflow and blocks dust, preventing moisture and dust from entering the branch connector 103. Inside the enclosing space, as the internal temperature rises, the memory spring 403 contracts, driving the second half-sleeve 301 to be housed inside the first half-sleeve 201, allowing the branch connector 103 to leak out for heat dissipation, preventing a surge in resistance of the branch connector 103 due to high temperature. During the process of the second half-sleeve 301 being housed inside the first half-sleeve 201, the enclosing space formed by the first half-sleeve 201 and the second half-sleeve 301 becomes smaller, thus driving the hot airflow inside the enclosing space to flow rapidly outward, causing the moisture absorbed in the activated carbon plate 505 to be separated by heat and discharged outward, while blowing away the attached dust. The memory spring 403 drives the second half-sleeve 301 to slide out and cover the outside of the branch joint 103, thus retaining the temperature generated by the branch joint 103 and keeping it warm. This prevents the rubber seal inside the branch joint 103 from losing elasticity due to low temperature, thus preventing the branch joint 103 from failing to seal, and also prevents fatigue fracture at the root of the branch joint 103 due to stress concentration caused by alternating hot and cold temperatures. At the same time, the activated carbon plate 505 absorbs moisture and keeps dust away from the incoming external airflow. The memory spring 403 retracts and drives the second half-sleeve 301 to be housed inside the first half-sleeve 201, allowing the branch joint 103 to leak out and dissipate heat, avoiding a surge in resistance of the branch joint 103 due to high temperature. At the same time, it drives the internal hot airflow to flow out quickly, removing moisture and dust from the activated carbon plate 505.
[0023] like Figure 3As shown, optionally, the two ends of the memory spring 403 are fixed at the relative positions of the inner sidewall of the first half sleeve 201 and the inner sidewall of the second half sleeve 301. A guide mechanism is provided on the inner side of the memory spring 403. The guide mechanism is used for the memory spring 403 to extend and retract stably along the axial direction and for the second half sleeve 301 to extend and retract stably relative to the first half sleeve 201 along the axial direction.
[0024] In this embodiment, a guide mechanism is provided to make the memory spring 403 stably extend and retract along the axial direction, while ensuring that the second half-sleeve 301 slides out and in stably along the axial direction relative to the first half-sleeve 201 without deflection. The memory spring 403 is made of CuZnAl memory alloy wire and is a temperature-sensitive driving element that can extend and retract with temperature changes. When the ambient temperature is low, the memory spring 403 returns to its original length and pushes the second half-sleeve 301 to slide out stably along the axial direction relative to the first half-sleeve 201, protecting the branch joint 103. When the ambient temperature is high (reaching 65°C), which is also the critical temperature value that the outer sheath of the branch joint 103 can withstand, the memory spring 403 is shortened to half its original length, that is, it drives the second half-sleeve 301 to slide in stably along the axial direction relative to the first half-sleeve 201. At this time, the outer sheath of the branch joint 103 is exposed for heat dissipation.
[0025] like Figure 3 , Figure 6 and Figure 7 As shown, optionally, the guide mechanism includes a hollow tube 401 and a telescopic rod 402. The telescopic rod 402 is slidably connected to the inner surface of the hollow tube 401. The end of the telescopic rod 402 is fixed to the inner side wall of the second half sleeve 301. The end of the hollow tube 401 is fixed to the inner side wall of the first half sleeve 201. A groove 202 is provided on the inner circumferential surface of the first half sleeve 201. A protruding plate 302 is fixed at the edge of the outer circumferential surface of the second half sleeve 301. The protruding plate 302 is slidably connected to the inner surface of the corresponding groove 202. The outer circumferential surface of the second half sleeve 301 is slidably connected to the inner circumferential surface of the corresponding first half sleeve 201.
[0026] In this embodiment, the telescopic rod 402 connected to the second half sleeve 301 slides inside the hollow tube 401 connected to the first half sleeve 201, and the convex plate 302 connected to the second half sleeve 301 slides in the groove 202 opened on the inner circumferential surface of the first half sleeve 201, ensuring that the second half sleeve 301 can extend and retract stably relative to the first half sleeve 201.
[0027] like Figure 3 and Figure 6 As shown, optionally, a through rectangular groove 404 is provided in the side wall of the hollow tube 401, and the interior of the hollow tube 401 is connected to the interior of the first half sleeve 201 through the rectangular groove 404.
[0028] In this embodiment, because the memory spring 403 expands and contracts rapidly under temperature changes, the telescopic rod 402 expands and contracts rapidly inside the hollow tube 401. Therefore, by setting the rectangular groove 404, it is ensured that the telescopic rod 402 will not be obstructed when it expands and contracts rapidly, that is, the second half sleeve 301 can expand and contract smoothly inside the first half sleeve 201.
[0029] like Figure 3 and Figure 7 As shown, optionally, the second half-sleeve 301 has a through airflow hole 303 at the middle of one end opposite to the first half-sleeve 201, and the inner diameter of the airflow hole 303 is larger than the outer diameter of the branch joint 103.
[0030] In this embodiment, because the space enclosed by the second half-sleeve 301 expands or contracts inside the first half-sleeve 201, the enclosed space needs to absorb or expel gas to complete this action. Therefore, an airflow hole 303 is provided to assist in completing the process of air intake and exhaust. Because the inner diameter of the airflow hole 303 is larger than the outer diameter of the branch connector 103, airflow passes through the gap between the airflow hole 303 and the outside of the branch connector 103 to complete the intake and exhaust.
[0031] like Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, optionally, an arc-shaped plate 501 with a matching shape is fixed on the outer periphery of the activated carbon plate 505, a rectangular frame 502 is fixed on the middle of the outer periphery of the arc-shaped plate 501, a limiting plate 503 is fixed on the inner side wall of the second half sleeve 301, the rectangular frame 502 is slidably sleeved on the outer side of the limiting plate 503, the rectangular frame 502 and the limiting plate 503 are fastened to each other by the first bolt 504, and the inner peripheral surface of the activated carbon plate 505 is in contact with the outer peripheral surface of the branch joint 103.
[0032] In this embodiment, the activated carbon plate 505 has a limited service life, and it is replaced by rotating the first bolt 504; the second half-sleeve 301 extends out of the first half-sleeve 201 during the air intake process, such as... Figure 3 The arrows indicate that external air enters the space formed by the first half-sleeve 201 and the second half-sleeve 301 through the airflow hole 303; the exhaust process occurs when the second half-sleeve 301 is housed within the first half-sleeve 201. Figure 4 The arrows indicate that the internal air flows to the outside through the airflow hole 303. During both the intake and exhaust processes, the airflow passes through the activated carbon plate 505. During intake, the activated carbon plate 505 absorbs moisture and dust, while during exhaust, the activated carbon plate 505 is dusted and dehumidified by the impact of the hot airflow, so that the activated carbon plate 505 can continue to be used.
[0033] like Figure 1 , Figure 3 and Figure 7 As shown, optionally, the first half-sleeve 201 has a first semi-circular hole 203 and a second semi-circular hole 204 at the middle of one end opposite to the second half-sleeve 301, and the main cable 101 and the branch cable 102 are fixed in the two merged first semi-circular holes 203 and second semi-circular holes 204 by a locking mechanism.
[0034] In this embodiment, the two first half-sleeves 201 are symmetrically arranged and merged to drive the first semi-circular hole 203 and the second semi-circular hole 204 to merge, and are sleeved on the outside of the main cable 101 and the branch cable 102. Then, they are fixed by a locking mechanism. Since the inner side of the activated carbon plate 505 is in contact with the outer side of the branch connector 103, when the branch cable 102 is connected, the bending of the branch cable 102 will not cause the root of the branch connector 103 to be subjected to bending force, that is, it will prevent the loosening phenomenon caused by force. At the same time, after the first half-sleeve 201 is fixed, it is also convenient for the second half-sleeve 301 to extend and retract to protect the branch connector 103.
[0035] like Figure 1 As shown, optionally, the locking mechanism includes a mounting plate 601, a second bolt 602 and a nut 603. The mounting plates 601 are symmetrically fixed on both sides of the first half sleeve 201, and the two mounting plates 601 are fastened together by the second bolt 602 and the nut 603.
[0036] In this embodiment, the two mounting plates 601 that are in contact with each other are fastened by the second bolt 602 and the nut 603, so that the two first half sleeves 201 are fixed to each other after being merged, and their positions relative to the main cable 101 are fixed.
[0037] like Figure 1 As shown, optionally, both the first half-sleeve 201 and the second half-sleeve 301 are made of polytetrafluoroethylene.
[0038] In this embodiment, both the first half-sleeve 201 and the second half-sleeve 301 are made of polytetrafluoroethylene (PTFE) material, ensuring that the first half-sleeve 201 and the second half-sleeve 301 are resistant to high and low temperatures and have insulating properties, making them suitable for extreme environments.
[0039] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly, characterized in that, The device includes a first half-sleeve (201), a second half-sleeve (301), a memory spring (403), an activated carbon plate (505), and a locking mechanism. The two first half-sleeves (201) are symmetrical to each other and, after being merged, are fixed to the outside of the main cable (101) and the branch cable (102) by the locking mechanism. The two second half-sleeves (301) are symmetrical to each other and are movably disposed inside the corresponding first half-sleeves (201). The memory spring (403) is disposed on the first half-sleeves (201) and the second half-sleeves (301). Inside, at low temperatures, the memory spring (403) drives the second half-sleeve (301) to slide out relative to the first half-sleeve (201) and cover the outside of the branch joint (103). At high temperatures, the memory spring (403) drives the second half-sleeve (301) to be housed inside the first half-sleeve (201). The activated carbon plate (505) is detachably installed inside the second half-sleeve (301). When the second half-sleeve (301) extends or retracts relative to the first half-sleeve (201), it drives the external airflow to flow inward or the internal airflow to flow outward rapidly.
2. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, The memory spring (403) is fixed at both ends at the relative positions of the inner sidewall of the first half sleeve (201) and the inner sidewall of the second half sleeve (301). A guide mechanism is provided on the inner side of the memory spring (403). The guide mechanism is used for the memory spring (403) to extend and retract stably along the axial direction and for the second half sleeve (301) to extend and retract stably along the axial direction relative to the first half sleeve (201).
3. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 2, characterized in that, The guiding mechanism includes a hollow tube (401) and a telescopic rod (402). The telescopic rod (402) is slidably connected to the inner surface of the hollow tube (401). The end of the telescopic rod (402) is fixed to the inner wall of the second half sleeve (301). The end of the hollow tube (401) is fixed to the inner wall of the first half sleeve (201). A groove (202) is provided on the inner circumferential surface of the first half sleeve (201). A protruding plate (302) is fixed at the edge of the outer circumferential surface of the second half sleeve (301). The protruding plate (302) is slidably connected to the inner surface of the corresponding groove (202). The outer circumferential surface of the second half sleeve (301) is slidably connected to the inner circumferential surface of the corresponding first half sleeve (201).
4. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 3, characterized in that, A through rectangular groove (404) is provided in the side wall of the hollow tube (401), and the interior of the hollow tube (401) is connected to the interior of the first half sleeve (201) through the rectangular groove (404).
5. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, The second half-sleeve (301) has a through airflow hole (303) in the middle of the end opposite to the first half-sleeve (201), and the inner diameter of the airflow hole (303) is larger than the outer diameter of the branch joint (103).
6. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, An arc-shaped plate (501) with a matching shape is fixed on the outer periphery of the activated carbon plate (505). A rectangular frame (502) is fixed in the middle of the outer periphery of the arc-shaped plate (501). A limiting plate (503) is fixed on the inner side wall of the second half sleeve (301). The rectangular frame (502) is slidably sleeved on the outer side of the limiting plate (503). The rectangular frame (502) and the limiting plate (503) are fastened to each other by a first bolt (504). The inner peripheral surface of the activated carbon plate (505) is in contact with the outer peripheral surface of the branch joint (103).
7. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, The first half-sleeve (201) has a first semi-circular hole (203) and a second semi-circular hole (204) at the middle of the end opposite to the second half-sleeve (301). The main cable (101) and the branch cable (102) are fixed in the two combined first semi-circular holes (203) and second semi-circular holes (204) by a locking mechanism.
8. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, The locking mechanism includes a mounting plate (601), a second bolt (602), and a nut (603). The mounting plates (601) are symmetrically fixed on both sides of the first half sleeve (201), and the two mounting plates (601) are fastened together by the second bolt (602) and the nut (603).
9. The high-temperature resistant, extra-soft fluoroplastic insulated branch cable assembly as described in claim 1, characterized in that, Both the first half-sleeve (201) and the second half-sleeve (301) are made of polytetrafluoroethylene.