Cable fixing structure for power transmission

Abstract

The invention belongs to the technical field of power transmission, and particularly discloses a cable fixing structure for power transmission, which comprises a fixed circular plate, and a screw tube and a mounting tube which are fixed on the fixed circular plate, the screw tube and the mounting tube are oppositely arranged, a sealing cover is fixed on the mounting tube, an elastic piece is embedded in the mounting tube, and the elastic piece comprises an abutting cover and an extrusion cover. A telescopic pipe is fixed between the abutting cover and the extrusion cover, and a protruding rubber ring is arranged on the telescopic pipe. According to the structure, the screw tube is in threaded connection with external equipment, then the sealing cover is separated from the mounting tube, when the mounting cable needs to be connected with the external equipment, a worker inserts the connecting end of the mounting cable into the sleeving rubber tube in advance, and then the power connection end of the mounting cable penetrates through the fixed circular plate and the screw tube to be fixed to the external equipment; and meanwhile, the abutting cover, the extrusion cover and the telescopic pipe are inserted into the mounting pipe, so that a cavity structure formed by the abutting cover, the extrusion cover and the telescopic pipe supports the mounting cable.

Description

Technical Field

[0001] This invention belongs to the field of power transmission technology, and specifically discloses a cable fixing structure for power transmission. Background Technology

[0002] In the field of power transmission, the fixing and connection of cables are crucial to ensuring the safe and stable operation of the power system. When connecting cables to external equipment (such as distribution boxes, transformers, etc.), it is usually necessary to use a fixing structure to securely install the cable ends at the equipment interface to prevent the cables from loosening, falling off, or making poor contact due to external forces, vibrations, or environmental factors, thereby avoiding safety accidents such as power outages, short circuits, or even fires.

[0003] Existing cable fixing structures mostly employ rigid clamping or threaded crimping methods, such as using metal clamps or plastic clips to press the cable to the equipment interface. While these structures can achieve cable fixing to a certain extent, they also have the following problems: 1. Easily damages cables: When pressure is applied to the cable using rigid fixing methods, the cable sheath is easily damaged and deformed. Long-term use may also cause the internal conductor of the cable to break due to stress concentration, affecting the service life and electrical safety of the cable.

[0004] 2. Poor adaptability: The diameter of cables of different specifications varies greatly, and traditional fixing structures often have difficulty in flexibly adjusting the clamping force, resulting in the common problem of not clamping thin cables tightly and clamping thick cables too tightly.

[0005] 3. Insufficient sealing performance: In outdoor or harsh environments, the sealing performance of fixed structures is particularly important. Existing structures often lack effective sealing designs, allowing dust, moisture, and other contaminants to easily enter the equipment through the interfaces, affecting its normal operation.

[0006] 4. Lack of pressure feedback mechanism: When fixing cables, installers cannot intuitively judge whether the clamping force is appropriate. Over-tightening can easily lead to cable damage, or insufficient tightening can cause the cable to come loose.

[0007] Therefore, there is an urgent need for a cable fixing structure that can reliably fix cables and has good adaptability, sealing and visual management capabilities to improve the safety and reliability of power transmission systems. Summary of the Invention

[0008] In view of this, the purpose of the present invention is to provide a cable fixing structure for power transmission in order to solve the problems mentioned above.

[0009] To achieve the above objectives, the present invention provides a cable fixing structure for power transmission, including a fixing circular plate and a screw tube and an installation tube fixed on the fixing circular plate. The screw tube and the installation tube are arranged opposite to each other. A sealing cap is fixed on the installation tube, and an elastic element is embedded inside the installation tube. The elastic element includes an abutment cap and a compression cap, with a telescopic tube fixed between the abutment cap and the compression cap. A protruding rubber ring is provided on the telescopic tube. The compression cap and the abutment cap have the same structure. A support ring is fixed on both the compression cap and the abutment cap. A sleeve rubber tube is fixed between the support ring of the compression cap and the support ring of the abutment cap.

[0010] In the above technical solution, a contact rubber ring is sleeved on the spiral tube, an installation cable passes through the sealing cover, the electrical terminal of the installation cable passes through the elastic element and the spiral tube, and the sleeve rubber tube is wrapped around the installation cable.

[0011] In the above technical solution, the sealing cover further includes a pressure cover, and a compression ring is fixed on the side of the pressure cover near the mounting tube. The compression ring and the mounting tube are inserted and fixed. At the same time, the end of the compression ring away from the pressure cover abuts against the pressure cover. A through hole is opened on the pressure cover, and an abutting rubber strip is fixed on the inner wall of the through hole.

[0012] In the above technical solution, the sidewalls of the extrusion cap, telescopic tube, protruding rubber ring and abutment cap abut against the mounting tube, the extrusion ring is inserted into the recessed groove on the extrusion cap, and the support ring and sleeve rubber tube are distributed opposite to the through hole.

[0013] In the above technical solution, a mounting ring is further fixed in the middle of the side of the abutment cover away from the telescopic tube, and a limit block is inserted into the mounting ring, and the limit block is fixed on the fixed circular plate.

[0014] In the above technical solution, a compression ring is further fixed inside the mounting tube on the fixed circular plate, and airflow channels are equally spaced on the fixed circular plate near the compression ring. A circular hole is formed on the fixed circular plate between the compression ring and the airflow channels, and the inner cavity of the airflow channel is connected to the inner cavity of the compression ring through the circular hole.

[0015] In the above technical solution, the extrusion ring is inserted into the recessed groove on the abutment cover, and a protruding rubber sheet is fixed on the fixing circular plate around the mounting tube. The protruding rubber sheet is fixed at the opening end of the airflow channel away from the circular hole.

[0016] In the above technical solution, a mounting cover is further embedded inside the spiral tube, and support tubes are fixed on the mounting cover at equal intervals, the support tubes penetrating the fixed circular plate.

[0017] In the above technical solution, the support tube and the through hole are opposite each other, and the inner wall of the support tube is also fixed with an abutment strip. The support tube is sleeved on the installation cable.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. In this structure, the screw tube is threaded to the external equipment. Then, the sealing cover is separated from the installation tube. When the installation cable needs to be connected to the external equipment, the operator inserts the connecting end of the installation cable into the sleeve tubing in advance. Then, the electrical end of the installation cable passes through the fixing round plate and the screw tube to fix it to the external equipment. At the same time, the abutment cover, the compression cover and the telescopic tube are inserted into the interior of the installation tube, thereby realizing the cavity structure composed of the abutment cover, the compression cover and the telescopic tube to support the installation cable.

[0019] 2. When the pressure cap in this structure drives the extrusion ring to be inserted and fixed inside the installation tube, the extrusion ring can provide extrusion force to the extrusion cap. This increases the extrusion force inside the cavity formed by the telescopic tube, the extrusion cap, and the pressure cap. When the cavity formed by the telescopic tube, the extrusion cap, and the pressure cap is under high pressure, the protruding rubber ring will expand under force. This allows the protruding rubber ring to stably abut against the inner wall of the installation tube. At the same time, the sleeve rubber tube can tightly wrap around the installation cable, so that the elastic element can be stably sleeved on the installation cable, thereby making the installation cable firmly connected to the structure.

[0020] 3. When the pressure cap in this structure drives the extrusion ring to provide extrusion pressure to the extrusion cap, the extrusion pressure inside the cavity formed by the telescopic tube, the extrusion cap, and the pressure cap will also increase. At the same time, the pressure cap also provides extrusion pressure to the extrusion ring. When the extrusion ring is subjected to the extrusion pressure of the pressure cap, the air inside the airflow channel is in a high-pressure state. The high pressure inside the airflow channel will cause the protruding rubber sheet to bulge. The operator can judge the extrusion pressure inside the elastic element based on the degree of bulging of the protruding rubber sheet, and thus judge the extrusion strength of the elastic element on the installation cable, so as to avoid the elastic element extruding and damaging the installation cable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Cross-sectional structural diagram; Figure 3 This is a diagram showing the connection structure between the extruded rubber ring and the fixed circular plate in this invention; Figure 4 This is a diagram showing the connection structure of the telescopic tube, the extrusion cap, and the abutment cap in this invention. Figure 5 This is a diagram showing the connection structure between the extrusion ring and the mounting tube in this invention; Figure 6 This is a diagram showing the connection structure between the support tube and the mounting cover in this invention; Figure 7 This is a structural diagram showing the telescopic tube, the extrusion cap, and the abutment cap in this invention. Figure 8 for Figure 3 A magnified view of A in the middle.

[0022] 1. Fixed circular plate; 11. Screw tube; 12. Mounting tube; 13. Pressure cap; 14. Abutting rubber ring; 15. Extrusion ring; 16. Limiting block; 17. Through hole; 18. Abutting rubber strip; 2. Mounting cable; 3. Telescopic tube; 31. Extrusion cap; 32. Connecting rubber tube; 33. Abutting cap; 34. Mounting ring; 35. Protruding rubber ring; 36. Recessed groove; 37. Support ring; 4. Airflow channel; 41. Extrusion rubber ring; 42. Protruding rubber sheet; 43. Circular hole; 5. Mounting cap; 51. Support tube. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0025] Example 1: Please refer to Figures 1-8 As shown, the present invention provides a technical solution: The present invention is a cable fixing structure for power transmission, including a fixing circular plate 1 and a screw tube 11 and a mounting tube 12 fixed on the fixing circular plate 1. The screw tube 11 and the mounting tube 12 are arranged opposite to each other. A sealing cap is fixed on the mounting tube 12, and an elastic element is embedded inside the mounting tube 12. The elastic element includes an abutment cover 33 and a compression cover 31. A telescopic tube 3 is fixed between the abutment cover 33 and the compression cover 31. A protruding rubber ring 35 is provided on the telescopic tube 3. The compression cover 31 and the abutment cover 33 have the same structure. A support ring 37 is fixed on both the compression cover 31 and the abutment cover 33. A sleeve rubber tube 32 is fixed between the support ring 37 of the compression cover 31 and the support ring 37 of the abutment cover 33. A rubber ring 14 is fitted onto the screw tube 11, and an installation cable 2 passes through the sealing cover. The electrical terminal of the installation cable 2 passes through the elastic element and the screw tube 11, and the rubber tube 32 is wrapped around the installation cable 2. In actual use, the staff first threaded the screw tube 11 to the external equipment, and then separated the sealing cover from the installation tube 12. When the installation cable 2 needs to be connected to the external equipment, the staff first inserted the connecting end of the installation cable 2 into the sleeve rubber tube 32, and then fixed the electrical end of the installation cable 2 through the fixed circular plate 1 and the screw tube 11 to the external equipment. At the same time, the abutment cover 33, the compression cover 31 and the telescopic tube 3 were inserted into the interior of the installation tube 12, so that the cavity structure composed of the abutment cover 33, the compression cover 31 and the telescopic tube 3 supports the installation cable 2. When the cavity structure consisting of the abutment cover 33, the compression cover 31 and the telescopic tube 3 supports the installation cable 2, the sealing cover is connected to the installation tube 12. This can seal the opening end of the installation tube 12 with the sealing cover, preventing external debris from entering the interior of the installation tube 12 through the opening end of the installation tube 12.

[0026] Based on the existing cable fixing situation, when one end of the cable is connected to external equipment, the cable installation end can be pulled by external force. In order to prevent the cable installation end from loosening, workers usually use a rigid fixing structure to fix the cable installation end. Although this structure can achieve a good fixing effect on the cable installation end, it is also easy to cause the cable installation end to break on the rigid fixing structure. In order to solve this problem, the following structure is proposed. Example 2: Please refer to Figures 1-8 As shown, based on Embodiment 1, the present invention provides a technical solution. Unlike Embodiment 1, in this embodiment, when the pressure cap 13 drives the compression ring 15 to be inserted and fixed inside the mounting tube 12, the compression ring 15 can provide compression force to the compression cap 31. This can increase the compression force inside the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33. When the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33 is under high pressure, the protruding rubber ring 35 will expand under force. This can make the protruding rubber ring 35 stably abut against the inner wall of the mounting tube 12. At the same time, the sleeve rubber tube 32 can tightly wrap around the mounting cable 2, so that the elastic element is stably sleeved on the mounting cable 2, thereby making the mounting cable 2 firmly connected to the structure.

[0027] The sealing cover includes a pressure cover 13. A compression ring 15 is fixed on the side of the pressure cover 13 near the mounting tube 12. The compression ring 15 and the mounting tube 12 are inserted and fixed. At the same time, the end of the compression ring 15 away from the pressure cover 13 abuts against the pressure cover 31. A through hole 17 is provided on the pressure cover 13. An abutting rubber strip 18 is fixed on the inner wall of the through hole 17.

[0028] The side walls of the extrusion cap 31, telescopic tube 3, protruding rubber ring 35 and abutment cap 33 abut against the mounting tube 12. The extrusion ring 15 is inserted into the recessed groove 36 on the extrusion cap 31. The support ring 37 and the sleeve rubber tube 32 are distributed opposite to the through hole 17.

[0029] An installation ring 34 is fixed in the middle of the side of the abutment cover 33 away from the telescopic tube 3. A limit block 16 is inserted into the installation ring 34 and the limit block 16 is fixed on the fixed circular plate 1. In actual use, the telescopic tube 3 and the protruding rubber ring 35 are made of flexible structure. When the elastic element is installed inside the installation tube 12, the outer wall of the telescopic tube 3 and the protruding rubber ring 35 abuts against the inner wall of the installation tube 12. At the same time, the extrusion ring 15 is inserted into the recessed groove 36 on the extrusion cover 31, and the limiting block 16 is fixed on the fixed circular plate 1. This can realize that the abutment cover 33 is positioned and installed inside the installation tube 12, so that the edges of the telescopic tube 3 and the protruding rubber ring 35 are subjected to the same extrusion force from the installation tube 12. When the pressure cap 13 drives the compression ring 15 to be inserted and fixed inside the mounting tube 12, the compression ring 15 can provide compression force to the compression cap 31. This can increase the compression force inside the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33. When the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33 is under high pressure, the protruding rubber ring 35 will expand under force. This can make the protruding rubber ring 35 stably abut against the inner wall of the mounting tube 12. At the same time, the sleeve rubber tube 32 can tightly wrap around the mounting cable 2, so that the elastic element is stably sleeved on the mounting cable 2, thereby making the mounting cable 2 firmly connected to the structure.

[0030] When the installation cable 2 is securely connected to the inside of the installation tube 12 through the elastic element, the elastic element can apply a squeezing force to the electrical terminal of the installation cable 2. This allows the sleeve 32 to fit tightly against the outer wall of the installation cable 2, preventing debris from the external environment from entering the interior of the external equipment through this structure. However, when the installation cable 2 is connected to the elastic element, the air inside the elastic element is easily affected by thermal expansion and contraction. This makes it difficult for operators to understand the squeezing force of the elastic element on the installation cable 2 based on the actual usage environment. To solve this problem, the following structure is proposed. Example 3: Please refer to Figures 1-8 As shown, based on Embodiment 1, the present invention provides a technical solution. Unlike Embodiment 1, in this embodiment, when the pressure cover 13 drives the compression ring 15 to provide compression force to the compression cover 31, the compression force inside the cavity formed by the telescopic tube 3, the compression cover 31, and the abutment cover 33 will also increase. At the same time, the abutment cover 33 also provides compression force to the compression rubber ring 41. When the compression rubber ring 41 is subjected to the compression force of the abutment cover 33, the air inside the airflow channel 4 is in a high-pressure state. The high pressure inside the airflow channel 4 will cause the protruding rubber sheet 42 to bulge. The operator can judge the compression force inside the elastic element based on the degree of bulging of the protruding rubber sheet 42, and then judge the compression strength of the elastic element on the installation cable 2, so as to avoid the elastic element from compressing and damaging the installation cable 2.

[0031] A compression ring 41 is fixed inside the mounting tube 12 on the fixed circular plate 1. Airflow channels 4 are equally spaced on the fixed circular plate 1 near the compression ring 41. A circular hole 43 is opened on the fixed circular plate 1 between the compression ring 41 and the airflow channel 4. The inner cavity of the airflow channel 4 is connected to the inner cavity of the compression ring 41 through the circular hole 43.

[0032] The extrusion ring 41 is inserted into the recessed groove 36 on the abutment cover 33. A protruding rubber sheet 42 is fixed on the fixed circular plate 1 around the mounting tube 12. The protruding rubber sheet 42 is fixed at the opening end of the airflow channel 4 away from the circular hole 43.

[0033] The screw tube 11 has an embedded mounting cover 5, and support tubes 51 are fixed on the mounting cover 5 at equal intervals. The support tubes 51 pass through the fixed circular plate 1.

[0034] The support tube 51 and the through hole 17 are opposite each other, and the inner wall of the support tube 51 is also fixed with an abutment strip 18. The support tube 51 is sleeved on the installation cable 2. When the pressure cover 13 drives the compression ring 15 to provide compression force to the compression cover 31, the compression force inside the cavity formed by the telescopic tube 3, the compression cover 31, and the abutment cover 33 will also increase. At the same time, the abutment cover 33 also provides compression force to the compression rubber ring 41. When the compression rubber ring 41 is subjected to the compression force of the abutment cover 33, the air inside the airflow channel 4 is in a high-pressure state. The high pressure inside the airflow channel 4 will cause the protruding rubber sheet 42 to bulge. The staff can judge the compression force inside the elastic element based on the degree of bulging of the protruding rubber sheet 42, and then judge the compression strength of the elastic element on the installation cable 2, so as to avoid the elastic element from compressing and damaging the installation cable 2. Working principle: In actual use, the operator first connects the screw tube 11 to the external equipment, and then separates the sealing cover from the installation tube 12. When the installation cable 2 needs to be connected to the external equipment, the operator first inserts the connecting end of the installation cable 2 into the sleeve tube 32, and then fixes the electrical end of the installation cable 2 through the fixed circular plate 1 and the screw tube 11 to the external equipment. At the same time, the abutment cover 33, the compression cover 31 and the telescopic tube 3 are inserted into the interior of the installation tube 12, thereby realizing the cavity structure composed of the abutment cover 33, the compression cover 31 and the telescopic tube 3 to support the installation cable 2. When the cavity structure consisting of the abutment cover 33, the compression cover 31 and the telescopic tube 3 supports the installation cable 2, the sealing cover is connected to the installation tube 12. This can seal the opening end of the installation tube 12 with the sealing cover, preventing external debris from entering the interior of the installation tube 12 through the opening end of the installation tube 12.

[0035] Based on the existing cable fixing situation, when one end of the cable is connected to external equipment, the cable installation end can be pulled by external force. In order to prevent the cable installation end from loosening, workers usually use a rigid fixing structure to fix the cable installation end. Although this structure can achieve a good fixing effect on the cable installation end, it is also easy to cause the cable installation end to break on the rigid fixing structure. In order to solve this problem, the following structure is proposed. In actual use, the telescopic tube 3 and the protruding rubber ring 35 are made of flexible structure. When the elastic element is installed inside the installation tube 12, the outer wall of the telescopic tube 3 and the protruding rubber ring 35 abuts against the inner wall of the installation tube 12. At the same time, the extrusion ring 15 is inserted into the recessed groove 36 on the extrusion cover 31, and the limiting block 16 is fixed on the fixed circular plate 1. This can realize that the abutment cover 33 is positioned and installed inside the installation tube 12, so that the edges of the telescopic tube 3 and the protruding rubber ring 35 are subjected to the same extrusion force from the installation tube 12. When the pressure cap 13 drives the compression ring 15 to be inserted and fixed inside the mounting tube 12, the compression ring 15 can provide compression force to the compression cap 31. This can increase the compression force inside the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33. When the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33 is under high pressure, the protruding rubber ring 35 will expand under force. This can make the protruding rubber ring 35 stably abut against the inner wall of the mounting tube 12. At the same time, the sleeve rubber tube 32 can tightly wrap around the mounting cable 2, so that the elastic element is stably sleeved on the mounting cable 2, thereby making the mounting cable 2 firmly connected to the structure.

[0036] When the installation cable 2 is securely connected to the inside of the installation tube 12 through the elastic element, the elastic element can apply a squeezing force to the electrical terminal of the installation cable 2. This allows the sleeve 32 to fit tightly against the outer wall of the installation cable 2, preventing debris from the external environment from entering the interior of the external equipment through this structure. However, when the installation cable 2 is connected to the elastic element, the air inside the elastic element is easily affected by thermal expansion and contraction. This makes it difficult for operators to understand the squeezing force of the elastic element on the installation cable 2 based on the actual usage environment. To solve this problem, the following structure is proposed. When the pressure cap 13 drives the compression ring 15 to provide compression force to the compression cap 31, the compression force inside the cavity formed by the telescopic tube 3, the compression cap 31, and the abutment cap 33 will also increase. At the same time, the abutment cap 33 also provides compression force to the compression rubber ring 41. When the compression rubber ring 41 is subjected to the compression force of the abutment cap 33, the air inside the airflow channel 4 is in a high-pressure state. The high pressure inside the airflow channel 4 will cause the protruding rubber sheet 42 to bulge. The operator can judge the compression force inside the elastic element based on the degree of bulging of the protruding rubber sheet 42, and then judge the compression strength of the elastic element on the installation cable 2, so as to avoid the elastic element from compressing and damaging the installation cable 2.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A cable fixing structure for power transmission, comprising a fixing circular plate (1) and a threaded tube (11) and an mounting tube (12) fixed on the fixing circular plate (1), characterized in that: The spiral tube (11) and the mounting tube (12) are arranged opposite to each other. A sealing cap is fixed on the mounting tube (12), and an elastic element is embedded inside the mounting tube (12). The elastic element includes an abutment cap (33) and a compression cap (31). A telescopic tube (3) is fixed between the abutment cap (33) and the compression cap (31). A protruding rubber ring (35) is provided on the telescopic tube (3). The compression cap (31) and the abutment cap (33) have the same structure. A support ring (37) is fixed on both the compression cap (31) and the abutment cap (33). A sleeve rubber tube (32) is fixed between the support ring (37) of the compression cap (31) and the support ring (37) of the abutment cap (33).

2. The cable fixing structure for power transmission according to claim 1, characterized in that... A rubber ring (14) is fitted onto the helical tube (11), and an installation cable (2) passes through the sealing cover. The electrical end of the installation cable (2) passes through the elastic element and the helical tube (11), and the rubber sleeve (32) is wrapped around the installation cable (2).

3. The cable fixing structure for power transmission according to claim 1, characterized in that, The sealing cover includes a pressure cover (13). A compression ring (15) is fixed on the side of the pressure cover (13) near the mounting tube (12). The compression ring (15) and the mounting tube (12) are inserted and fixed. At the same time, the end of the compression ring (15) away from the pressure cover (13) abuts against the pressure cover (31). A through hole (17) is provided on the pressure cover (13). An abutting rubber strip (18) is fixed on the inner wall of the through hole (17).

4. The cable fixing structure for power transmission according to claim 3, characterized in that, The sidewalls of the extrusion cap (31), telescopic tube (3), protruding rubber ring (35) and abutment cap (33) abut against the mounting tube (12), the extrusion ring (15) is inserted into the recessed groove (36) on the extrusion cap (31), and the support ring (37) and sleeve rubber tube (32) are distributed opposite to the through hole (17).

5. The cable fixing structure for power transmission according to claim 1, characterized in that, An installation ring (34) is fixed in the middle of the side of the abutment cover (33) away from the telescopic tube (3). A limit block (16) is inserted into the installation ring (34), and the limit block (16) is fixed on the fixed circular plate (1).

6. The cable fixing structure for power transmission according to claim 1, characterized in that, A compression ring (41) is fixed inside the mounting tube (12) on the fixed circular plate (1). Airflow channels (4) are provided at equal intervals on the fixed circular plate (1) near the compression ring (41). A circular hole (43) is provided on the fixed circular plate (1) between the compression ring (41) and the airflow channel (4). The inner cavity of the airflow channel (4) is connected to the inner cavity of the compression ring (41) through the circular hole (43).

7. A cable fixing structure for power transmission according to claim 6, characterized in that, The extrusion ring (41) is inserted into the recessed groove (36) on the abutment cover (33). A protruding rubber sheet (42) is fixed on the fixed circular plate (1) around the mounting tube (12). The protruding rubber sheet (42) is fixed at the opening end of the airflow channel (4) away from the circular hole (43).

8. A cable fixing structure for power transmission according to claim 3, characterized in that, The screw tube (11) has an embedded mounting cover (5), and a support tube (51) is fixed on the mounting cover (5) at equal intervals. The support tube (51) passes through the fixed circular plate (1).

9. A cable fixing structure for power transmission according to claim 8, characterized in that, The support tube (51) and the through hole (17) are opposite each other. The inner wall of the support tube (51) is also fixed with an abutment strip (18). The support tube (51) is sleeved on the installation cable (2).

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