A wire harness docking structure based on magnetic coupling

Abstract

This invention relates to the field of wire harness docking technology, and more particularly to a wire harness docking structure based on magnetic coupling. The structure includes an upper wire harness and a lower wire harness. A guide cone is fixedly connected to the center of the bottom end of the upper wire harness, and a guide groove is formed inside the upper side of the lower wire harness. Both the lower end of the upper wire harness and the upper end of the lower wire harness are made of magnetic material. When they are close together, they can be magnetically coupled together through the guidance of the guide cone and the guide groove, achieving docking. A side support structure is installed on the outer side of the bottom end of the lower wire harness. During the initial docking phase, when the lower wire harness moves inside the tube, the side support structure acts as a "hard support." An annular airbag is fixedly connected to the outer side of the lower wire harness. After docking, the high-pressure gas inside the side support structure enters the annular airbag, causing the annular airbag to make interference contact with the inner wall of the tube. The side support structure then becomes a flexible support, ensuring sufficient support while effectively reducing vibration transmission from the tube and increasing the stability of the wire harness docking.

Description

Technical Field

[0001] This invention relates to the field of wire harness docking technology, specifically a wire harness docking structure based on magnetic coupling. Background Technology

[0002] like Figure 1 As mentioned above, for the monitoring module 3 that needs to conduct electrical communication at a high altitude, the wiring harness and connecting wires 6 need to be placed on the ground 1 inside the tube 2 installed by a fixing component (the fixing component is a support fixing component, such as a welding frame) in order to effectively increase reliability. However, due to the damp environment at the bottom, the connection position of the wire harness should be upward. The tube 2 is exposed to the natural environment and will vibrate due to the wind. This vibration will affect the stability of the wire harness connection, and the higher it is, the greater this long-term vibration will be. The present invention can conveniently set the connection position of the wire harness in the middle position inside the tube 2, and can effectively reduce the vibration of the tube itself, further increasing the stability of the wire harness connection.

[0003] Therefore, a wire harness docking structure based on magnetic coupling is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a wire harness docking structure based on magnetic coupling, which can conveniently realize the docking of wire harnesses in the middle of the tube and reduce the transmission of tube vibration to the wire harness connection, thereby effectively increasing the stability of the wire harness connection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire harness docking structure based on magnetic coupling, comprising an upper wire harness and a lower wire harness, wherein a guide cone is fixedly connected to the center of the bottom end of the upper wire harness, and a guide groove is provided inside the upper side of the lower wire harness. The lower end of the upper wire harness and the upper end of the lower wire harness are both made of magnetic material. When they are close together, they can be magnetically coupled together by the guidance of the guide cone and the guide groove to achieve docking. A side support structure is installed on the outer side of the bottom end of the lower wire harness. During the initial docking phase, when the lower wire harness moves inside the tube, the side support structure acts as a "hard support". An annular airbag is fixedly connected to the outer side of the lower wire harness. After docking, the high-pressure gas inside the side support structure enters the annular airbag, causing the annular airbag to make interference contact with the inner wall of the tube. The side support structure becomes a flexible support, which is used to ensure sufficient support while effectively reducing the vibration transmission of the tube and increasing the stability of the wire harness docking.

[0006] To avoid a damp environment at the bottom and reduce the vibration of the tubing, this invention can conveniently connect the wire harness in the middle of the tubing and reduce the transmission of tubing vibration to the wire harness connection point, thereby effectively increasing the stability of the wire harness connection. Installing the wire harness in the middle position, compared to installing the wire harness at the top, can also reduce the gravity pull of the connecting wire and prevent the vibration damage of the connecting wire from being aggravated. The lower wire harness enters from the bottom of the tube. When lifting, it is pulled up by a magnetic sheet or by a pull rope to achieve the upward movement of the tube. Once the lower wire harness reaches the connection position, it is temporarily "hovered" by the side support structure. Then, the upper wire harness is lowered, and the upper and lower wire harnesses can be magnetically coupled together by the guide cone and guide groove to achieve docking. As a preferred embodiment of the wire harness docking structure based on magnetic coupling of the present invention, an upper contact ring is fixedly connected to the outer side of the guide cone. The upper contact ring is a discontinuously distributed elastic metal to ensure contact redundancy. A lower contact ring corresponding to the upper contact ring is fixedly connected to the inner side of the guide groove to realize the electrical connection between the upper and lower wire harnesses.

[0007] As a preferred embodiment of the wire harness docking structure based on magnetic coupling of the present invention, the bottom end of the lower wire harness is fixedly connected to a cylindrical high-pressure gas cylinder, and the side support structure includes a connecting rod that is rotatably connected to the outside of the high-pressure gas cylinder by a hinge, the end of the connecting rod is fixedly connected to a connecting shaft, and a rotating wheel is rotatably connected to the outside of the connecting shaft, with the rotating wheel abutting against the inner side of the tube. The connecting shaft and the rotating wheel are connected by a ratchet structure, which allows the rotating wheel to climb upward inside the tube. A pawl is rotatably connected to the outer side of the connecting shaft via a hinge. A torsion spring is installed between the pawl and the outer side of the connecting shaft. A ratchet is fixedly connected to the inner side of the rotating wheel. When the rotating wheel moves upward inside the tube, the ratchet slides over the pawl. When the rotating wheel reverses, the ratchet is locked by the pawl, thus achieving support.

[0008] The outer side of the rotating wheel is made of rubber to increase friction. The ratchet structure in this invention ensures that the side support structure can move upward but not downward. If the wire harness needs to be removed later, it can be clamped by a clamp and removed from the top. As a preferred embodiment of the wire harness docking structure based on magnetic coupling of the present invention, a cylinder is rotatably connected to the outside of the high-pressure gas cylinder via a hinge, a piston is slidably connected to the inside of the cylinder, an inner rod is fixedly connected to the upper side of the piston, the inner rod extends out of the cylinder and is rotatably connected to the bottom end of the connecting rod via a hinge, and the position below the piston inside the cylinder is connected to the high-pressure gas cylinder via a connecting pipe, which is a flexible tube. The high pressure inside the high-pressure gas cylinder acts on the piston, causing the rotating wheel to abut against the inner side of the tube.

[0009] As a preferred embodiment of the wire harness docking structure based on magnetic coupling in this invention, the front end of the high-pressure gas cylinder is connected to an inflation nozzle. Through the inflation nozzle, gas can be injected into the inside of the high-pressure gas cylinder. When the pressure inside the high-pressure gas cylinder is large enough, the piston inside the cylinder is difficult to slide, and the support generated by the rotating wheel on the inner wall of the tube is close to "hard support".

[0010] As a preferred embodiment of the wire harness docking structure based on magnetic coupling in this invention, the top of the high-pressure gas cylinder is connected to an exhaust valve, and the bottom of the lower wire harness is slidably connected to a wedge block. An inflation channel is opened on the inner side of the wedge block. In the initial state, the solid position of the wedge block blocks the exhaust valve.

[0011] As a preferred embodiment of the wire harness docking structure based on magnetic coupling of the present invention, a lower probe is fixedly connected to the bottom end of the guide cone. The lower probe has inclined surfaces on both sides. The wedge block is also provided with an inclined surface near the middle of the lower wire harness. When the lower probe approaches the guide groove under the action of gravity and magnetic attraction, it will move the wedge block away from the middle of the lower wire harness. At this time, the air outlet valve can be connected to the air filling channel. The inlet end of the air filling channel can completely cover the air outlet valve to prevent gas from escaping.

[0012] As a preferred embodiment of the wire harness docking structure based on magnetic coupling in this invention, an inflation tube with a one-way valve is fixedly connected to the inner side of the lower wire harness. After the outlet valve of the inflation tube is connected to the inflation channel, the gas in the high-pressure gas cylinder enters the annular airbag through the outlet valve, inflation channel, soft air tube and inflation tube. At this point, the gas pressure inside the high-pressure cylinder decreases, and the rotor becomes a flexible support. The loss of some of the support force by the rotor is compensated by the increased contact friction surface of the annular air bladder, thus achieving overall elastic support.

[0013] In this invention, compared with the prior art, after the docking is completed, while ensuring that it is stationary, it can automatically transform the "hard support" into a flexible support, thereby overcoming the instability caused by wind vibration of the tube, increasing the stability of the wire harness connection, and sealing the space under the lower wire harness to prevent moisture from rising. The specific working method is as follows: When the probe approaches the guide groove under the action of gravity and magnetic attraction, it will move the wedge block away from the center of the lower wire harness. At this time, the vent valve can connect with the inflation channel. The vent valve is a one-way valve. When the vent valve is connected to the inflation channel, the outlet end of the vent valve will be opened because the pressure of the solid surface is lost. The inlet end of the inflation channel can completely cover the vent valve to prevent gas from escaping. The high-pressure gas in the high-pressure gas cylinder will enter the inner side of the annular air bag. Since the high-pressure gas cylinder and the inner side of the cylinder are connected through the connecting pipe, part of the gas in the cylinder will be diluted, thereby changing the "hard support effect" of the cylinder into a flexible support, reducing the effect of tube vibration transmitted to the wire harness connection, thus effectively increasing the stability of the wire harness connection.

[0014] As a preferred embodiment of the wire harness docking structure based on magnetic coupling of the present invention, a retaining groove is provided on the inner side of the bottom end of the lower wire harness. After the upper wire harness and the lower wire harness are docked, the lower probe is located inside the retaining groove.

[0015] As a preferred embodiment of the wire harness docking structure based on magnetic coupling in this invention, a guide limiting post is fixedly connected to the outer side of the upper wire harness, and the width of the limiting post is smaller than that of the inner wall of the tube. The diameter of the annular airbag in its initial state is slightly smaller than that of the inner wall of the tube. After the annular airbag is filled with gas, it can quickly form a contact surface with the inner wall of the tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. A wire harness docking structure based on magnetic coupling includes an upper wire harness and a lower wire harness. A guide cone is fixedly connected to the center of the bottom end of the upper wire harness, and a guide groove is opened inside the upper side of the lower wire harness. The lower end of the upper wire harness and the upper end of the lower wire harness are both made of magnetic material. When they are close together, they can be magnetically coupled together by the guidance of the guide cone and the guide groove to achieve docking.

[0017] 2. This wire harness docking structure based on magnetic coupling has a side support structure installed on the outer side of the bottom end of the lower wire harness. In the initial stage of docking, when the lower wire harness moves inside the tube, the side support structure plays the role of "hard support". An annular airbag is fixedly connected to the outer side of the lower wire harness. After docking, the high-pressure gas inside the side support structure enters the annular airbag, causing the annular airbag to make interference contact with the inner wall of the tube. The side support structure becomes a flexible support, which is used to ensure sufficient support while effectively reducing the vibration transmission of the tube and increasing the stability of the wire harness docking.

[0018] 3. The front end of the high-pressure gas cylinder of the wire harness docking structure based on magnetic coupling is connected to an inflation nozzle. Through the inflation nozzle, gas can be injected into the inside of the high-pressure gas cylinder. When the pressure inside the high-pressure gas cylinder is large enough, the piston inside the cylinder is difficult to slide, and the support generated by the rotating wheel on the inner wall of the tube is close to "hard support".

[0019] 4. This wire harness docking structure based on magnetic coupling, compared to existing technologies, can automatically transform from "hard support" to flexible support after docking while maintaining stillness. This overcomes the instability caused by wind vibration of the tube, increases the stability of the wire harness connection, and seals the space under the lower wire harness to prevent moisture from rising. When the probe approaches the guide groove under the influence of gravity and magnetic attraction, it moves the wedge block away from the center of the lower wire harness. At this time, the vent valve can connect with the inflation channel. The vent valve is a one-way valve. When the vent valve is connected to the inflation channel, the outlet end of the vent valve will be opened because the pressure of the solid surface is lost. The inlet end of the inflation channel can completely cover the vent valve to prevent gas from escaping. The high-pressure gas in the high-pressure cylinder will enter the inner side of the annular air bag. Because the high-pressure gas cylinder and the inner side of the cylinder are connected by a connecting pipe, some of the gas in the cylinder will be diluted, thus transforming the "hard support effect" of the cylinder into a flexible support. This reduces the effect of tube vibration transmitted to the wire harness connection, thereby effectively increasing the stability of the wire harness connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the application scenario and wiring harness installation location of the present invention; Figure 2 This is a schematic diagram of the internal structure of the wire harness during installation according to the present invention; Figure 3 This is a schematic diagram of the external structure of the wire harness of the present invention; Figure 4 This is a schematic diagram of the internal cross-sectional structure of the wire harness of the present invention; Figure 5 For the present invention Figure 4 A magnified structural diagram at point A; Figure 6 This is a schematic diagram of the external structure of the wedge-shaped block of the present invention; Figure 7 This is a schematic diagram of the internal structure of the wedge-shaped block of the present invention; Figure 8 This is a schematic diagram of the structure of the rotating wheel and the connecting shaft of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point B in the diagram; Figure 10 This is a side sectional view of the structure at the junction of the rotating wheel and the connecting shaft of the present invention; Figure 11 This is a schematic diagram of the internal structure of the cylinder in this invention; Figure 12 This is a schematic diagram of the structure after the upper and lower wire harnesses of the present invention are connected.

[0021] In the diagram: 1. Ground; 2. Pipe; 3. Monitoring module; 4. Upper wiring harness; 5. Lower wiring harness; 6. Connecting wire; 41. Guide cone; 42. Upper contact ring; 43. Lower probe; 44. Limiting post; 51. Annular airbag; 52. Connecting rod; 521. Connecting shaft; 5211. Pawl; 5212. Torsion spring; 53. Rotary wheel; 531. Ratchet; 54. High-pressure gas cylinder; 55. Inflation nozzle; 56. Guide groove; 57. Lower contact ring; 58. Cylinder; 581. Piston; 582. Inner rod; 59. Connecting pipe; 510. Wedge block; 5101. Inclined surface; 5102. Inflation channel; 511. Inflation pipe; 512. Exhaust valve; 513. Retention groove; 514. Flexible air tube. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1, please refer to Figures 1-12 The present invention provides a technical solution: a wire harness docking structure based on magnetic coupling, including an upper wire harness 4 and a lower wire harness 5. A guide cone 41 is fixedly connected to the bottom center of the upper wire harness 4, and a guide groove 56 is opened inside the upper side of the lower wire harness 5. The lower end of the upper wire harness 4 and the upper end of the lower wire harness 5 are both made of magnetic material. When they are close together, they can be magnetically coupled together by the guide cone 41 and the guide groove 56 to achieve docking. A side support structure is installed on the outer side of the bottom end of the lower wire harness 5. During the initial docking stage, when the lower wire harness 5 moves inside the tube 2, the side support structure acts as a "hard support". An annular airbag 51 is fixedly connected to the outer side of the lower wire harness 5. After docking, the high-pressure gas inside the side support structure enters the annular airbag 51, causing the annular airbag 51 to make interference contact with the inner wall of the tube 2. The side support structure becomes a flexible support, which is used to ensure sufficient support while effectively reducing the vibration transmission of the tube 2 and increasing the stability of the wire harness docking.

[0024] To avoid a damp environment at the bottom and reduce vibration of the tube 2, this invention can conveniently connect the wire harness in the middle of the tube 2 and reduce the transmission of vibration of the tube 2 to the wire harness connection point, thereby effectively increasing the stability of the wire harness connection. Installing the wire harness in the middle position, compared with installing the wire harness at the top, can also reduce the gravity pull of the connecting wire 6 and prevent the vibration damage of the connecting wire 6 from being aggravated (because the vibration damage of the connection point will be aggravated when under load). The lower wire harness 5 enters from the bottom of the tube 2. When it is lifted, it is pulled up by a magnetic sheet or by a pull rope to achieve the upward movement of the tube 2. When the lower wire harness 5 reaches the connection position, it is temporarily "hovered" by the side support structure. Then the upper wire harness 4 is lowered. The upper wire harness 4 and the lower wire harness 5 can be magnetically coupled together by the guide cone 41 and the guide groove 56 to achieve docking. Specifically, a cylindrical high-pressure gas cylinder 54 is fixedly connected to the bottom end of the lower wiring harness 5. The side support structure includes a connecting rod 52 that is rotatably connected to the outside of the high-pressure gas cylinder 54 via a hinge. A connecting shaft 521 is fixedly connected to the end of the connecting rod 52. A rotating wheel 53 is rotatably connected to the outside of the connecting shaft 521. The rotating wheel 53 abuts against the inside of the tube 2. The connecting shaft 521 and the rotating wheel 53 are connected by a ratchet structure, which allows the rotating wheel 53 to climb upward inside the tube 2; A pawl 5211 is rotatably connected to the outer side of the connecting shaft 521 via a hinge. A torsion spring 5212 is installed between the pawl 5211 and the outer side of the connecting shaft 521. A ratchet 531 is fixedly connected to the inner side of the rotating wheel 53. When the rotating wheel 53 moves upward inside the tube 2, the ratchet 531 will slide past the pawl 5211. When the rotating wheel 53 reverses, the ratchet 531 will be locked by the pawl 5211, thereby achieving support.

[0025] The outer side of the rotating wheel 53 is made of rubber to increase friction. The ratchet structure in this invention ensures that the side support structure can move upward but not downward. If the wire harness needs to be removed later, the lower wire harness 5 can be clamped by the clamp and removed from the top. Specifically, a cylinder 58 is rotatably connected to the outside of the high-pressure gas cylinder 54 via a hinge. A piston 581 is slidably connected to the inside of the cylinder 58. An inner rod 582 is fixedly connected to the upper side of the piston 581. After the inner rod 582 extends out of the cylinder 58, it is rotatably connected to the bottom end of the connecting rod 52 via a hinge. The position below the piston 581 inside the cylinder 58 is connected to the high-pressure gas cylinder 54 via a connecting pipe 59. The connecting pipe 59 is a flexible hose. The high pressure inside the high-pressure gas cylinder 54 acts on the piston 581, causing the rotating wheel 53 to abut against the inside of the tube 2.

[0026] Specifically, the front end of the high-pressure gas cylinder 54 is connected to an inflation nozzle 55. Through the inflation nozzle 55, air can be injected into the inside of the high-pressure gas cylinder 54. When the pressure inside the high-pressure gas cylinder 54 is large enough, and the weight of the lower wiring harness itself is not heavy, it will be difficult for the piston 581 inside the cylinder 58 to slide. The support generated by the rotating wheel 53 on the inner wall of the tube 2 is close to "hard support".

[0027] Specifically, the top of the high-pressure gas cylinder 54 is connected to an exhaust valve 512, and the bottom of the lower wiring harness 5 is slidably connected to a wedge block 510. An inflation channel 5102 is opened on the inner side of the wedge block 510. In the initial state, the solid position of the wedge block 510 blocks the exhaust valve 512.

[0028] Specifically, a lower probe 43 is fixedly connected to the bottom end of the guide cone 41. The lower probe 43 has inclined surfaces on both sides. Similarly, an inclined surface 5101 is provided on the wedge block 510 near the middle of the lower wire harness 5. When the lower probe 43 approaches the guide groove 56 under the influence of gravity and magnetic attraction, it will move the wedge block 510 away from the middle of the lower wire harness 5 (e.g., ...). Figure 12 At this time, the vent valve 512 can be connected to the inflation channel 5102, wherein the inlet end of the inflation channel 5102 can completely cover the vent valve 512 to prevent gas from escaping.

[0029] Specifically, an inflation tube 511 with a one-way valve is fixedly connected to the inner side of the lower wiring harness 5. After the outlet valve 512 of the inflation tube 511 is connected to the inflation channel 5102, the gas in the high-pressure gas cylinder 54 enters the annular airbag 51 through the outlet valve 512, the inflation channel 5102, the flexible air tube 514 and the inflation tube 511. At this time, the air pressure inside the high-pressure gas cylinder 54 decreases, and the rotating wheel 53 becomes a flexible support. The loss of some of the support force of the rotating wheel 53 is compensated by the increased contact friction surface of the annular airbag 51, thereby achieving overall elastic support.

[0030] In this invention, compared with the prior art, after the docking is completed, while ensuring that it is stationary, it can automatically transform the "hard support" into a flexible support, thereby overcoming the instability caused by wind vibration of the tube 2, increasing the stability of the wire harness connection, and sealing the space under the lower wire harness to prevent moisture from rising. The specific working method is as follows: When the probe 43 approaches the guide groove 56 under the action of gravity and magnetic attraction, it will move the wedge block 510 away from the middle of the lower wire harness 5. At this time, the exhaust valve 512 can be connected to the inflation channel 5102. The exhaust valve 512 is a one-way valve. When the exhaust valve 512 is connected to the inflation channel 5102, the outlet end of the exhaust valve 512 will be opened because the pressure of the solid surface is lost. The inlet end of the inflation channel 5102 can completely cover the exhaust valve 512 to prevent gas from escaping. The high-pressure gas in the high-pressure gas cylinder 54 will enter the inner side of the annular air bag 51. Since the high-pressure gas cylinder 54 is connected to the inner side of the cylinder 58 through the connecting pipe 59, part of the gas in the cylinder 58 will be diluted, thereby changing the "hard support effect" of the cylinder 58 into a flexible support, reducing the effect of the vibration of the tube 2 transmitted to the wire harness connection, thereby effectively increasing the stability of the wire harness connection.

[0031] Specifically, a recessed groove 513 is provided on the inner side of the bottom end of the lower wire harness 5. After the upper wire harness 4 and the lower wire harness 5 are connected, the lower probe 43 is located inside the recessed groove 513.

[0032] Specifically, a guide limiting post 44 is fixedly connected to the outer side of the upper wire harness 4, and the width of the limiting post 44 is smaller than the inner wall of the tube 2; The diameter of the annular airbag 51 in its initial state is slightly smaller than that of the inner wall of the tube 2. After the annular airbag 51 is filled with gas, it can quickly form a contact surface with the inner wall of the tube 2.

[0033] Example 2, please refer to Figure 3 and Figure 4 An upper contact ring 42 is fixedly connected to the outer side of the guide cone 41. The upper contact ring 42 is a discontinuously distributed elastic metal used to ensure contact redundancy and to ensure that the upper and lower contact rings are always in interference contact. A lower contact ring 57 corresponding to the upper contact ring 42 is fixedly connected to the inner side of the guide groove 56 to realize the electrical connection between the upper wire harness 4 and the lower wire harness 5.

[0034] For the specific connection method of the upper wiring harness 4 and the lower wiring harness 5, please refer to the electrical connection method of the 3.5mm headphone jack. The details will not be repeated here.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire harness docking structure based on magnetic coupling, comprising an upper wire harness (4) and a lower wire harness (5), characterized in that: The bottom center of the upper wire harness (4) is fixedly connected to a guide cone (41), and the upper side of the lower wire harness (5) is provided with a guide groove (56). The lower end of the upper wire harness (4) and the upper end of the lower wire harness (5) are both made of magnetic material. When they are close together, they can be magnetically coupled together by the guide cone (41) and the guide groove (56) to achieve docking. A side support structure is installed on the outer side of the bottom end of the lower wire harness (5). In the initial stage of docking, when the lower wire harness (5) moves inside the tube (2), the side support structure plays the role of "hard support". An annular airbag (51) is fixedly connected to the outer side of the lower wire harness (5). After docking, the high-pressure gas inside the side support structure enters the annular airbag (51), so that the annular airbag (51) makes interference contact with the inner wall of the tube (2). The side support structure becomes a flexible support, which is used to ensure sufficient support while effectively reducing the vibration transmission of the tube (2) and increasing the stability of the wire harness docking.

2. The wire harness docking structure based on magnetic coupling according to claim 1, characterized in that: An upper contact ring (42) is fixedly connected to the outer side of the guide cone (41). The upper contact ring (42) is a discontinuously distributed elastic metal used to ensure contact redundancy. A lower contact ring (57) corresponding to the upper contact ring (42) is fixedly connected to the inner side of the guide groove (56) to realize the electrical connection between the upper wire harness (4) and the lower wire harness (5).

3. The wire harness docking structure based on magnetic coupling according to claim 1, characterized in that: The bottom end of the lower wire harness (5) is fixedly connected to a cylindrical high-pressure gas cylinder (54). The side support structure includes a connecting rod (52) that is rotatably connected to the outside of the high-pressure gas cylinder (54) via a hinge. The end of the connecting rod (52) is fixedly connected to a connecting shaft (521). A rotating wheel (53) is rotatably connected to the outside of the connecting shaft (521). The rotating wheel (53) abuts against the inside of the tube (2). The connecting shaft (521) and the rotating wheel (53) are connected by a ratchet structure, so that the rotating wheel (53) can climb upward inside the tube (2); A pawl (5211) is rotatably connected to the outside of the connecting shaft (521) via a hinge. A torsion spring (5212) is installed between the pawl (5211) and the outside of the connecting shaft (521). A ratchet (531) is fixedly connected to the inside of the rotating wheel (53). When the rotating wheel (53) moves upward inside the tube (2), the ratchet (531) will slide past the pawl (5211). When the rotating wheel (53) reverses, the ratchet (531) will be stuck by the pawl (5211), thereby achieving support.

4. A wire harness docking structure based on magnetic coupling as described in claim 3, characterized in that: A cylinder (58) is rotatably connected to the outside of the high-pressure gas cylinder (54) via a hinge. A piston (581) is slidably connected to the inside of the cylinder (58). An inner rod (582) is fixedly connected to the upper side of the piston (581). After the inner rod (582) extends out of the cylinder (58), it is rotatably connected to the bottom end of the connecting rod (52) via a hinge. The position below the piston (581) in the cylinder (58) is connected to the high-pressure gas cylinder (54) via a connecting pipe (59). The connecting pipe (59) is a flexible hose. The high pressure in the high-pressure gas cylinder (54) acts on the piston (581), causing the rotating wheel (53) to abut against the inside of the tube (2).

5. A wire harness docking structure based on magnetic coupling according to claim 4, characterized in that: The front end of the high-pressure gas cylinder (54) is connected to an air inlet (55). Through the air inlet (55), air can be charged into the inside of the high-pressure gas cylinder (54). When the pressure inside the high-pressure gas cylinder (54) is large enough, the piston (581) inside the cylinder (58) is difficult to slide. The support generated by the rotating wheel (53) on the inner wall of the tube (2) is close to "hard support".

6. A wire harness docking structure based on magnetic coupling according to claim 4, characterized in that: The top of the high-pressure gas cylinder (54) is connected to an outlet valve (512), and the bottom of the lower wiring harness (5) is slidably connected to a wedge block (510). An inflation channel (5102) is opened on the inner side of the wedge block (510). In the initial state, the solid position of the wedge block (510) blocks the outlet valve (512).

7. A wire harness docking structure based on magnetic coupling according to claim 6, characterized in that: The bottom end of the guide cone (41) is fixedly connected to the lower probe (43). The lower probe (43) has inclined surfaces on both sides. The wedge block (510) is also provided with an inclined surface (5101) near the middle of the lower wire harness (5). When the lower probe (43) approaches the guide groove (56) under the action of gravity and magnetic attraction, it will move the wedge block (510) away from the middle of the lower wire harness (5). At this time, the air valve (512) can be connected to the inflation channel (5102). The inlet end of the inflation channel (5102) can completely cover the air valve (512) to prevent gas from escaping.

8. A wire harness docking structure based on magnetic coupling according to claim 7, characterized in that: An inflation tube (511) with a one-way valve is fixedly connected to the inner side of the lower wiring harness (5). After the outlet valve (512) of the inflation tube (511) is connected to the inflation channel (5102), the gas in the high-pressure gas cylinder (54) enters the annular airbag (51) through the outlet valve (512), the inflation channel (5102), the soft air tube (514) and the inflation tube (511); At this time, the air pressure inside the high-pressure gas cylinder (54) decreases, and the rotating wheel (53) becomes a flexible support. The loss of some of the support force of the rotating wheel (53) is compensated by the increased contact friction surface of the annular airbag (51), thereby achieving overall elastic support.

9. A wire harness docking structure based on magnetic coupling according to claim 7, characterized in that: A placement groove (513) is provided on the inner side of the bottom end of the lower wire harness (5). After the upper wire harness (4) and the lower wire harness (5) are connected, the lower probe (43) is located inside the placement groove (513).

10. A wire harness docking structure based on magnetic coupling according to claim 1, characterized in that: A guide limiting post (44) is fixedly connected to the outside of the upper wire harness (4), and the width of the limiting post (44) is smaller than the inner wall of the tube (2); The diameter of the annular airbag (51) in its initial state is slightly smaller than that of the inner wall of the tube (2). After the annular airbag (51) enters the gas, it can quickly form a contact surface with the inner wall of the tube (2).

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