Rubber connecting piece and manufacturing method thereof

Abstract

The invention relates to the technical field of rubber connecting pieces, in particular to a rubber connecting piece and a manufacturing method thereof.The rubber connecting piece comprises a connecting valve, wiring ports are rotationally installed at the two ends of the connecting valve, a hard pipe sleeve is rotationally installed on the wiring port on the right side, and a connecting valve mechanism is arranged in the connecting valve; a sealing sleeve is movably installed at the rear end of the connecting outer pipe, a fixed square pipe is fixedly installed at the rear end of the connecting taper pipe, a movable sleeve is movably installed at the rear end of the fixed square pipe, and a worm and gear mechanism is fixedly installed on the surface of one side between the fixed square pipe and the movable sleeve. And a ratchet wheel anti-reverse mechanism is fixedly mounted on the surface of the other side between the fixed square tube and the movable sleeve. A worm and gear mechanism and a ratchet wheel anti-reverse-rotation mechanism are adopted, the angle needs to be adjusted according to the working environment when equipment is installed or maintained, hard supports connected in a segmented mode can flexibly adjust the direction of a connecting line, connection stability is ensured, and angle adjustment is more stable through the integrated ratchet wheel anti-reverse-rotation mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber connectors, and particularly to a rubber connector and a manufacturing method thereof. Background Art

[0002] In industrial automation production lines, equipment connecting wires need to connect various sensors, actuators, and controllers. These connecting wires are subject to stress due to mechanical vibration, frequent movement, or re-layout of equipment.

[0003] Automation production lines mostly need to work intensively. When the robotic arm equipment operates, vibrations will cause the connecting wires to become loose or damaged. Moreover, different equipment is installed in the production line, and the complex mechanical structure will limit the wiring space of the connecting wires. Placing multiple pieces of equipment together restricts the installation or maintenance angles, resulting in an irregular space layout.

[0004] Existing rubber connectors have the following deficiencies:

[0005] 1. Most equipment cables are wrapped with bare rubber materials around the battery cores. Due to the high production intensity in industrial automation production lines, traditional rubber connectors will undergo irreversible deformation, affecting their functions of compensating for displacement and damping vibration. Moreover, they will age faster in high-temperature or low-temperature environments, resulting in performance degradation and corrosion aging.

[0006] 2. There are a large number of mechanical components and sharp edges in the industrial environment. The exposed rubber cables are worn or scratched due to friction and collision, resulting in damage to the insulation layer, which in turn causes short circuits or electric leakage. Frequent mechanical movement will cause the cables to be overstretched and bent, damaging the internal battery cores and affecting signal transmission and power supply stability.

[0007] 3. In industrial automation production lines, industrial robotic arms move and adjust their positions frequently. Fixed support structures cannot adapt to this dynamic change, which will cause the cables to be damaged due to overstretching, bending, and torsion. When the production line needs to be adjusted and optimized, it is difficult to re-arrange the cables of the fixed support structure, increasing the adjustment cost and time. Moreover, common vibrations and impacts in the industrial environment will cause stress concentration of the cables at the fixed points, thus accelerating the wear and damage of the cables.

[0008] Therefore, according to the above shortcomings, a rubber connector and a manufacturing method thereof are hereby proposed. Summary of the Invention

[0009] The object of the present invention is to solve the shortcomings existing in the background art, and to propose a rubber connector and a manufacturing method thereof.

[0010] To achieve the above object, the technical solution adopted by the present invention is: a rubber connector and its manufacturing method, including a connection valve, both ends of the connection valve are rotatably installed with wiring ports, the right wiring port is rotatably installed with a rigid pipe sleeve, a connection valve mechanism is arranged inside the connection valve, the rear end of the rigid pipe sleeve is rotatably installed with a connection outer pipe, the rear end of the connection outer pipe is movably installed with a sealing sleeve, a sealing inner pipe is movably installed inside the connection outer pipe, the rear end of the sealing sleeve is fixedly installed with an adapter cone pipe, the rear end of the adapter cone pipe is fixedly installed with a fixed square pipe, the rear end of the fixed square pipe is movably installed with a movable sleeve, a worm and gear mechanism is fixedly installed on one side surface between the fixed square pipe and the movable sleeve, and a ratchet anti-reverse mechanism is fixedly installed on the other side surface between the fixed square pipe and the movable sleeve.

[0011] Preferably, the connection valve mechanism includes rotating seats fixedly installed on both sides of the outer surface of the connection valve, a bent arm is rotatably installed between every two rotating seats, empty slots are opened on the outer surface of the connection valve at the lower end of the bent arm, and a limit card is rotatably installed at one end of one of the bent arms.

[0012] Preferably, a rubber inner tube is fixedly installed inside the rigid pipe sleeve, a metal braided net is fixedly installed between the rubber inner tube and the rigid pipe sleeve, an adapter thread is fixedly installed at the rear end of the rigid pipe sleeve, and an engaging thread groove is arranged on the inner wall of the front end of the rigid pipe sleeve.

[0013] Preferably, the worm and gear mechanism includes a semi-circular groove opened on one side surface of the movable sleeve, a driving motor is fixedly installed at one end of the semi-circular groove, a worm is fixedly installed at the output end of the driving motor, a fixed turntable is rotatably installed at the center position of the semi-circular groove, a worm gear is arranged between the fixed turntable and the semi-circular groove, and the worm gear is engaged with the worm.

[0014] Preferably, the ratchet anti-reverse mechanism includes a second circular groove opened on the other surface of the movable sleeve, a crank is rotatably installed at the center position of the second circular groove, a clamping plate is fixedly installed at the lower end of the crank, a ratchet is rotatably installed at the lower end of the second circular groove, and the ratchet is engaged with the clamping plate.

[0015] Preferably, the sealing sleeve is located at the lower end of the outer surface of the connection outer pipe, through slots are opened at the same position of the sealing sleeve, the connection outer pipe and the sealing inner pipe, a pin is installed through the three through slots, and a sealing ring is arranged between the sealing inner pipe and the connection outer pipe.

[0016] Preferably, both ends of the connection valve are rotatably installed with wiring ports, a card slot is opened at one end of each wiring port close to the inside of the connection valve, and the card slot is attached to one side of the bent arm, and a port thread is fixedly installed on the outside of each wiring port.

[0017] Preferably, rotating arms are fixedly installed at the front ends of the upper and lower surfaces of the movable sleeve. The rotating arms are rotatably installed at the rear end of the fixed square pipe, and a plurality of the movable sleeves are connected to several groups of movable sleeves through the rotating arms at the rear end.

[0018] A method for manufacturing a rubber connector is carried out by using the above-mentioned connector, including the following steps:

[0019] S1. Pre-extrude and form the rubber inner tube, braid a metal braided mesh along the outer layer of the rubber inner tube, and then sleeved a hard tube sleeve from the metal braided mesh.

[0020] S2. The hard tube sleeve is quickly connected to the equipment through a connecting valve, and the outer connecting tube and the sealed inner tube are movably installed at the rear end through a bolt to form a sealed channel.

[0021] S3. The movable sleeve is rotatably installed at the rear end of the fixed square pipe through a rotating arm, and several movable sleeves at the rear end are all connected to the rear end of the previous movable sleeve through a rotating arm.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention adopts a triple composite protection system of rubber, metal braided mesh and hard tube sleeve. The rubber fits the inner tube to play a role in sealing and shock absorption. The outer metal braided mesh provides axial tensile and torsional resistance. The outermost hard tube sleeve cooperates with the worm and gear mechanism and the ratchet anti-reverse mechanism to finely adjust the angle of the hard tube sleeve to adapt to complex working environments.

[0024] 2. The present invention adopts a double-headed quick connector, which is convenient for operators to quickly dock the equipment with external cables. It is suitable for high-frequency multi-axis movement, and there is a risk of dynamic interference between the cable and the mechanical structure. The segmented structure can effectively reduce the influence brought by vibration. The complex mechanical structure will limit the wiring space of the connecting wire, and the segmented support structure can better adapt to the irregular space layout.

[0025] 3. The present invention adopts a worm and gear mechanism and a ratchet anti-reverse mechanism. When the equipment is installed or maintained, the angle needs to be adjusted according to the working environment. The segmented hard support can flexibly adjust the direction of the connecting wire to ensure the stability of the connection. The integrated ratchet anti-reverse mechanism makes the angle adjustment more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a rubber connector and its manufacturing method of the present invention;

[0027] Figure 2 is a structural schematic diagram of the metal braided mesh of a rubber connector and its manufacturing method of the present invention;

[0028] Figure 3A schematic diagram of a hard sleeve structure of a rubber connector and a manufacturing method thereof according to the present invention;

[0029] Figure 4 A cross-sectional view of a rubber connector and a manufacturing method thereof according to the present invention;

[0030] Figure 5 A schematic diagram of a connecting valve structure of a rubber connecting piece and a manufacturing method thereof according to the present invention;

[0031] Figure 6 A schematic diagram of the worm gear mechanism structure of a rubber connector and a manufacturing method thereof according to the present invention;

[0032] Figure 7 It is a schematic structural diagram of a ratchet anti-reversal mechanism of a rubber connector and a manufacturing method thereof of the present invention;

[0033] Figure 8 A rubber connector and a method for manufacturing the same Figure 6 Enlarged view of point A in the middle;

[0034] Figure 9 A rubber connector and a method for manufacturing the same Figure 7 Enlarged view of point B in the middle.

[0035] 1. Connecting valve; 2. Wiring port; 3. Slot; 4. Port thread; 5. Connecting cone tube; 6. Fixed square tube; 7. Movable sleeve; 8. Latch; 9. Swivel arm; 10. Connecting thread; 101. Rubber inner tube; 102. Metal braided mesh; 103. Hard sleeve; 104. Engaging thread groove; 105. Sealing inner tube; 106. Connecting outer tube; 107. Sealing ring; 108. Sealing sleeve; 109. Through groove; 201. Empty groove; 202. Bend arm; 203. Rotating seat; 204. Limiting clamp; 301. Driving motor; 302. Worm; 303. Worm wheel; 304. Semicircular groove; 305. Fixed turntable; 401. Second circular groove; 402. Crank; 403. Clamp plate; 404. Ratchet. DETAILED DESCRIPTION

[0036] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0037] like Figures 1-9A rubber connector and its manufacturing method are shown, including a connection valve 1. Wiring ports 2 are rotatably installed at both ends of the connection valve 1. A rigid pipe sleeve 103 is rotatably installed at the right wiring port 2. A connection valve mechanism is provided inside the connection valve 1. The rear end of the rigid pipe sleeve 103 is rotatably installed with a connection outer pipe 106. The rear end of the connection outer pipe 106 is movably installed with a sealing sleeve 108. A sealing inner pipe 105 is movably installed inside the connection outer pipe 106. The rear end of the sealing sleeve 108 is fixedly installed with an adapter cone pipe 5. The rear end of the adapter cone pipe 5 is fixedly installed with a fixed square pipe 6. The rear end of the fixed square pipe 6 is movably installed with a movable sleeve 7. A worm and gear mechanism is fixedly installed on one side surface between the fixed square pipe 6 and the movable sleeve 7. A ratchet anti-reverse mechanism is fixedly installed on the other side surface between the fixed square pipe 6 and the movable sleeve 7.

[0038] As Figure 2 , Figure 3 shown, a rubber inner pipe 101 is fixedly installed inside the rigid pipe sleeve 103. A metal braided net 102 is fixedly installed between the rubber inner pipe 101 and the rigid pipe sleeve 103. The rear end of the rigid pipe sleeve 103 is fixedly installed with an adapter thread 10. The inner wall of the front end of the rigid pipe sleeve 103 is provided with a fitting thread groove 104. The metal braided net 102 wraps around the outer side of the rubber inner pipe 101, forming an effective wrapping layer on the outer surface of the rubber inner pipe 101, providing axial tensile and torsional resistance. The outermost rigid pipe sleeve 103 provides the most direct protection to avoid cable damage caused by long-term processing.

[0039] As Figure 4 shown, the sealing sleeve 108 is located at the lower end of the outer surface of the connection outer pipe 106. Through slots 109 are opened at the same position of the sealing sleeve 108, the connection outer pipe 106, and the sealing inner pipe 105. A pin 8 is installed through the three through slots 109. A sealing ring 107 is provided between the sealing inner pipe 105 and the connection outer pipe 106. The sealing sleeve 108, the connection outer pipe 106, and the sealing inner pipe 105 are limited and fixed by the pin 8. When disassembling is required, the pin 8 can be taken out for disassembly. The sealing ring 107 forms a seal for the rubber inner pipe 101 and the sealing inner pipe 105.

[0040] As Figure 5 shown, the connection valve mechanism includes rotating seats 203 fixedly installed on both sides of the outer surface of the connection valve 1. A bent arm 202 is rotatably installed between every two rotating seats 203. Slots 201 are opened on the outer surface of the connection valve 1 at the lower end of the bent arm 202. And a limit card 204 is rotatably installed at one end of one side bent arm 202. The two wiring ports 2 on both sides are extended into the connection valve 1. By rotating the bent arm 202, the lower end block moves along the slot 201 and fits into the slot 3 for limitation.

[0041] Both ends of the connecting valve 1 are rotatably installed with wiring ports 2. Each wiring port 2 is provided with a card slot 3 at the end close to the inside of the connecting valve 1, and the card slot 3 fits against one side of the bent arm 202. And a port thread 4 is fixedly installed on the outside of each wiring port 2. The hard pipe sleeve 103 is fixedly installed on one side of the connecting valve 1 through the cooperation of the fitting thread groove 104 and the port thread 4.

[0042] Rotating arms 9 are fixedly installed at the front ends of the upper and lower surfaces of the movable sleeve 7. The rotating arms 9 are rotatably installed at the rear end of the fixed square pipe 6. The rear ends of multiple movable sleeves 7 are connected to several groups of movable sleeves 7 through the rotating arms 9. According to the length of the equipment cable, several movable sleeves 7 can be added to the rear end of the movable sleeve 7, and the angle adjustment is carried out through the worm and gear mechanism and the ratchet anti-reverse mechanism.

[0043] As Figure 8 shown, the worm and gear mechanism includes a semi-circular groove 304 opened on one side surface of the movable sleeve 7. A driving motor 301 is fixedly installed at one end of the semi-circular groove 304. The output end of the driving motor 301 is fixedly installed with a worm 302. A fixed turntable 305 is rotatably installed at the center position of the semi-circular groove 304. A worm gear 303 is provided between the fixed turntable 305 and the semi-circular groove 304. The worm gear 303 meshes with the worm 302. The movable sleeve 7 is rotatably installed at the rear end of the fixed square pipe 6 through the rotating arm 9. The driving motor 301 drives the worm 302 to rotate, and the engaged worm gear 303 on one side rotates in cooperation, so that the movable sleeve 7 rotates along the upper end of the semi-circular groove 304. A cable is placed inside the movable sleeve 7, and the angle can be adjusted according to the use situation.

[0044] As Figure 7 、 Figure 9 shown, the ratchet anti-reverse mechanism includes a second circular groove 401 opened on the other surface of the movable sleeve 7. A crank 402 is rotatably installed at the center position of the second circular groove 401. A clamping plate 403 is fixedly installed at the lower end of the crank 402. A ratchet 404 is rotatably installed at the lower end of the second circular groove 401. The ratchet 404 is engaged with the clamping plate 403. When the equipment is in a static state in the non-working state, the cable is in a fixed state to provide a rigid support for the movable sleeve 7. After the angle adjustment is carried out through the worm and gear mechanism, the ratchet 404 limits the clamping plate 403 to avoid reverse rotation and make the angle adjustment more stable. When release is required, the operator controls the crank 402 to drive the clamping plate 403 to rotate.

[0045] A manufacturing method of a rubber connector is carried out by using the above-mentioned connector, including the following:

[0046] S1. The rubber inner tube 101 is pre-extruded and formed, and braided along the outer layer of the rubber inner tube 101;

[0047] S2. The rigid pipe sleeve 103 is quickly connected to the device through the connection valve 1. The rear end is movably installed through the pin 8 to connect the outer pipe 106 and the sealed inner pipe 105 to form a sealed channel.

[0048] S3. The movable sleeve 7 is rotatably installed at the rear end of the fixed square pipe 6 through the rotating arm 9. A number of movable sleeves 7 at the rear end are all connected to the rear end of the previous movable sleeve 7 through the rotating arm 9.

[0049] Working principle: The cable on one side of the device is sleeved through the wiring port 2 and extends into the connection valve 1. After the two ends of the cable extend into the connection valve 1, the operator rotates the bent arm 202 along the rotating seat 203. One side of the bent arm 202 is a block structure. One side of the bent arm 202 rotates along the card slot 3 and is limited and fixed to each other through the bent arm 202. The limit card 204 rotatably installed at the upper end of one side of the bent arm 202 performs secondary limitation to prevent the wiring ports 2 on both sides from separating.

[0050] A port thread 4 is fixedly installed at the rear end of the wiring port 2. An engaging thread groove 104 with a threaded fit is provided on the inner wall of the rigid pipe sleeve 103 near the wiring port 2, so that the rigid pipe sleeve 103 is fixedly installed on one side of the wiring port 2. A metal braided mesh 102 is woven inside the rigid pipe sleeve 103. A rubber inner pipe 101 is fixedly installed inside the metal braided mesh 102. The metal braided mesh 102 provides anti-torsion for the rubber inner pipe 101. Especially when the robot arm is working, it will generate high-frequency multi-axis movements. By strengthening the wrapping of the device cable, wear, collision, and scratching in the industrial environment can be effectively avoided. The outermost rigid pipe sleeve 103 wraps the rubber inner pipe 101 and the metal braided mesh 102 together to form a seal, preventing a large amount of dust in the industrial environment from entering the device cable end.

[0051] The inner wall of the front end of the connecting outer pipe 106 is provided with an engaging thread 10. By rotating, the rigid pipe sleeve 103 and the connecting outer pipe 106 are fixedly connected. A sealed inner pipe 105 is slidably installed inside the connecting outer pipe 106. A sealing ring 107 is provided between the sealed inner pipe 105 and the connecting outer pipe 106. The sealing ring 107 makes the internal space at the front end of the connecting outer pipe 106 form a sealed space to prevent dust from entering the inside of the connecting piece. A sealing sleeve 108 is provided at the lower end of the outside of the connecting outer pipe 106. And pins 8 are installed through the same positions of the sealing sleeve 108, the connecting outer pipe 106, and the sealed inner pipe 105 to form a fixed connection through the pins 8.

[0052] A connecting taper pipe 5 is fixedly installed at the rear end of the sealing sleeve 108. The connecting taper pipe 5 is the transition connection between the cable itself and the port. A fixed square pipe 6 is fixedly installed at the rear end of the connecting taper pipe 5. The fixed square pipe 6 is the end of this device and provides secondary support for the cable. A number of movable sleeves 7 are connected to the rear end of the fixed square pipe 6 according to the length of the device cable. The multiple movable sleeves 7 provide an adjustable supporting effect for the cable.

[0053] Every two movable sleeves 7 are connected by a swing arm 9. A worm and worm gear mechanism is rotatably installed on one side surface and serves as a rotation driving component of the movable sleeve 7. A driving motor 301 drives a worm 302 to rotate, and the worm 302 drives a worm wheel 303 to drive the swing arm 9 to rotate along a fixed turntable 305, so that the movable sleeve 7 rotates along the movable sleeve 7 at the front end.

[0054] A ratchet anti-reverse mechanism is provided on the other side surface. A ratchet 404 is provided at the upper end of the swing arm 9 to provide the function of anti-reverse. When the angle adjustment is completed and needs to be fixed, a clamping plate 403 is clamped to one side of the ratchet 404. When the angle needs to be adjusted in the reverse direction or released, the crank 402 rotates along the second circular groove 401 to release the ratchet 404. The operator adjusts the angle in segments according to the working environment, and there are gaps between multiple movable sleeves 7, providing a more flexible wiring space to better adapt to the irregular space layout.

[0055] The above shows and describes 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 by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber connector and a method for manufacturing the same, comprising a connecting valve (1), characterized in that: Both ends of the connection valve (1) are rotatably mounted with wiring ports (2), the right wiring port (2) is rotatably mounted with a hard pipe sleeve (103), a connection valve mechanism is provided inside the connection valve (1), a connection outer pipe (106) is rotatably mounted at the rear end of the hard pipe sleeve (103), a sealing sleeve (108) is movably mounted at the rear end of the connection outer pipe (106), a sealing inner pipe (105) is movably mounted inside the connection outer pipe (106), a connecting cone pipe (5) is fixedly mounted at the rear end of the sealing sleeve (108), a fixed square pipe (6) is fixedly mounted at the rear end of the connecting cone pipe (5), a movable sleeve (7) is movably mounted at the rear end of the fixed square pipe (6), a worm gear mechanism is fixedly mounted on one side surface between the fixed square pipe (6) and the movable sleeve (7), and a ratchet anti-reversal mechanism is fixedly mounted on the other side surface between the fixed square pipe (6) and the movable sleeve (7).

2. A rubber connector and a method for manufacturing the same according to claim 1, characterized in that: The connecting valve mechanism comprises rotating seats (203) fixedly mounted on both sides of the outer surface of the connecting valve (1), a bent arm (202) being rotatably mounted between every two of the rotating seats (203), an outer surface of the connecting valve (1) being provided with a hollow groove (201) at the lower end of the bent arm (202), and a limit clamp (204) being rotatably mounted at one end of the bent arm (202).

3. A rubber connector and a method for manufacturing the same according to claim 1, characterized in that: A rubber inner tube (101) is fixedly installed inside the hard tube sleeve (103), a metal braided mesh (102) is fixedly installed between the rubber inner tube (101) and the hard tube sleeve (103), a connecting thread (10) is fixedly installed at the rear end of the hard tube sleeve (103), and an engaging thread groove (104) is provided on the inner wall of the front end of the hard tube sleeve (103).

4. A rubber connector and a method for manufacturing the same according to claim 1, characterized in that: The worm gear mechanism comprises a semicircular groove (304) formed on a surface of one side of a movable sleeve (7); a driving motor (301) is fixedly mounted on one end of the semicircular groove (304); a worm (302) is fixedly mounted on an output end of the driving motor (301); a fixed turntable (305) is rotatably mounted at the center of the semicircular groove (304); a worm gear (303) is provided between the fixed turntable (305) and the semicircular groove (304); and the worm gear (303) is meshed with the worm gear (302).

5. The rubber connector and the manufacturing method thereof according to claim 1, characterized in that: The ratchet anti-reversal mechanism comprises a second circular groove (401) formed on the other surface of the movable sleeve (7); a crank (402) is rotatably mounted at the center of the second circular groove (401); a clamping plate (403) is fixedly mounted at the lower end of the crank (402); a ratchet (404) is rotatably mounted at the lower end of the second circular groove (401); and the ratchet (404) is engaged with the clamping plate (403).

6. A rubber connector and a method for manufacturing the same according to claim 3, characterized in that: The sealing sleeve (108) is located at the lower end of the outer surface of the connecting outer tube (106); a through groove (109) is provided at the same position of the sealing sleeve (108), the connecting outer tube (106) and the sealing inner tube (105); a latch (8) is installed through the three through grooves (109); and a sealing ring (107) is provided between the sealing inner tube (105) and the connecting outer tube (106).

7. A rubber connector and a method for manufacturing the same according to claim 2, characterized in that: Both ends of the connection valve (1) are rotatably mounted with wiring ports (2), and each of the wiring ports (2) is provided with a slot (3) at one end located close to the other end inside the connection valve (1), and the slot (3) is fitted with one side of the bent arm (202), and a port thread (4) is fixedly mounted on the outer side of each wiring port (2).

8. The rubber connector and the manufacturing method thereof according to claim 1, characterized in that: The front ends of the upper and lower surfaces of the movable sleeve (7) are fixedly mounted with a rotating arm (9), and the rotating arm (9) is rotatably mounted on the rear end of the fixed square tube (6). The rear ends of a plurality of movable sleeves (7) are connected to a plurality of groups of movable sleeves (7) via the rotating arm (9).

9. A method for manufacturing a rubber connector, using the device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, pre-extrude the rubber inner tube (101) and weave along the outer layer of the rubber inner tube (101); S2, the hard pipe sleeve (103) is quickly connected to the equipment through the connecting valve (1), and the rear end is movably connected to the outer pipe (106) and the sealed inner pipe (105) through the latch (8) to form a sealed channel; S3, the movable sleeve (7) is rotatably mounted to the rear end of the fixed square tube (6) through the rotating arm (9), and the plurality of movable sleeves (7) at the rear end are all connected to the rear end of the previous movable sleeve (7) through the rotating arm (9).

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