Multifunctional special cable for robot

Abstract

The invention relates to the field of cables, and discloses a multifunctional special cable for a robot, two second arc-shaped plates are symmetrically arranged in a first air cavity, the second arc-shaped plates slide in the first air cavity, a plurality of second air cavities are formed in the circumference of a supporting body, the second air cavities are communicated with the first air cavity, and the second air cavities are communicated with the first air cavity. Two sliding plates are symmetrically arranged in the first air cavity, when an external substance collides and extrudes a cable, the external substance firstly makes contact with the first arc-shaped plate, the first arc-shaped plate shrinks inwards, while the first arc-shaped plate shrinks inwards, air in the second air cavity is pushed into the first air cavity, the air in the first air cavity is increased, the air pushes the second arc-shaped plate to slide outwards, and the cable is fixed. During sliding, the second arc-shaped plate abuts against the first arc-shaped plate, external impact and extrusion force is prevented from being transmitted to the conductor and damaging the cable, the situation that in the key production link, the cable is broken due to the fact that the cable is collided by a robot is avoided, the production process is continuously carried out, and the working efficiency is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of cables, and more specifically, particularly relates to a multifunctional special cable for robots. Background Art

[0002] In today's era of rapid technological development, robots have shined in many fields, whether it is the automated robotic arms in industrial production, used to efficiently and accurately complete various processing and assembly tasks, or the food delivery robots and tour guide robots in the service field, providing people with convenient and considerate services, or special robots that perform dangerous and arduous missions in some special environments such as space exploration and deep-sea exploration scenarios, their normal operation is inseparable from high-performance cables.

[0003] The prior art still has the following problems: First, when the robot is working and the cable encounters collision and extrusion by external materials, the strong extrusion of external materials may cause the multi-stranded conductors inside the cable to deform, and the originally uniform twisted structure is destroyed. In severe cases, individual strands may even break directly. The deformation of the conductor will increase its resistance, resulting in more heat generated during the transmission of electric energy, which not only wastes energy, but may also further accelerate the aging of other parts of the cable. Once the conductor breaks, it will inevitably cause power transmission interruption, and the robot will instantly lose power and cannot work. For robots in some key production links, it will cause the entire production line to stagnate, bringing great economic losses.

[0004] Second, robot cables will generate a lot of heat when in use. If the heat is not dissipated in time, the insulation layer of the cable is mostly made of polymer materials such as plastic and rubber. It is exposed to high temperature for a long time. Due to the high temperature, the insulation layer will age and break. The insulation distance between different conductors may not meet the requirements, which can easily cause short circuit failures. The local temperature of the cable may rise sharply, causing a fire, causing serious damage to the robot and peripheral equipment and the environment. Excessive current shock may also damage the robot's power supply, control circuit and other key electrical components, causing the robot to be completely paralyzed and the maintenance cost is high.

[0005] Third, when the robot needs to bend in most places and the cable is difficult to bend due to size issues, the cable will hinder the range of motion of the joints, making it impossible for the robot arm to reach the preset maximum motion angle, limiting its flexibility of movement, and thus affecting work efficiency. For example, in some assembly tasks that require precise positioning and multi-angle operation, it may not be able to complete the work accurately.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a multifunctional special cable for robots is provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0007] The present invention provides a multifunctional special cable for a robot, which is used to overcome the above-mentioned defects in the prior art.

[0008] The purpose and effect of the multifunctional special cable for robots of the present invention are achieved by the following specific technical means: A multifunctional special cable for a robot comprises a plurality of conductors and a plurality of outer protective sleeves sleeved on the outer sides of the conductors, a fifth air cavity is arranged in the outer protective sleeve, a plurality of support bodies are arranged in the fifth air cavity, a plurality of first air cavities are arranged circumferentially on the support body, two second arc plates are symmetrically arranged in the first air cavity, the second arc plates slide in the first air cavity, the support body is further circumferentially provided with a plurality of second air cavities, two second air cavities arranged side by side are provided at the entity between the two first air cavities, the second air cavity extends radially outward from the center of the support body, the second air cavity is connected to the first air cavity, and the second air cavity slides in the second air cavity A sliding plate is provided, an arc groove is provided on the outer side of the support body, the conductor is fixed in the arc groove, the first air cavity is an arc-shaped air cavity distributed around the arc groove, a first arc plate is provided on the outer side of the conductor, a third air cavity is provided in the first arc plate, two slides are symmetrically provided in the third air cavity, the slides slide in the third air cavity, a push rod is provided on the slide, one end of the push rod is connected to the slide, and the other end of the push rod is connected to the sliding plate, the second arc plate extends from the first air cavity to wrap the conductor and contacts the first arc plate, and the first arc plate contacts the outer protective cover.

[0009] A further technical solution is that a fourth air cavity is provided at the center of the support body, a plurality of air ducts are provided outside the fourth air cavity, the fourth air cavity is connected with the fifth air cavity through the air ducts, a hose is provided between the plurality of the support bodies, both ends of the hose are respectively connected to two adjacent support bodies, two adjacent fourth air cavities are connected through the hose, and an air supply device is fixedly provided at the end of the cable, the air supply device is used to control the gas flow in the fourth air cavity.

[0010] A further technical solution is that a sealing cover is provided at the end of the outer protective sleeve, and holes are provided on the circumference of the sealing cover. The conductor passes through the holes, and a threaded protective tube is provided at the hole. Both ends of the threaded protective tube are respectively connected to two adjacent sealing covers, and the threaded protective tube is sleeved on the conductor.

[0011] According to a further technical solution, the end of the support body is connected to the sealing cover, an air hole is provided at the center of the sealing cover, an air inlet pipe is provided at the center of the two sealing covers, both ends of the air inlet pipe are respectively connected to the sealing cover, and the air inlet pipe and the fifth air cavity are connected through the air hole.

[0012] A further technical solution is that the air replenishing device includes a fixed sleeve, a rotating disk and an air collecting box. A fixed sleeve is fixedly arranged on the sealing cover at the end of the cable, the fixed sleeve is sleeved on the outside of the cable, a rotating disk is arranged on the outside of the fixed sleeve, the rotating disk and the fixed sleeve are rotatably connected, a plurality of air vents of different sizes are arranged on the circumference of the rotating disk, the air vents are intermittently coaxial with the air vents, the air collecting box is fixed on the sealing cover, an annular space is arranged on the air collecting box, the rotating disk is embedded in the annular space, the rotating disk rotates in the annular space, an air outlet is arranged in the center of the air collecting box, and the air outlet is intermittently coaxial with the air hole.

[0013] A further technical solution is that a second fixed block is provided in the first air cavity, the second fixed block is connected to the inner wall of the first air cavity, the second arc plate is in contact with the second fixed block, a third fixed block is provided in the second air cavity, the third fixed block is fixed on the inner wall of the second air cavity, the sliding plate is in contact with the third fixed block, a first fixed block is provided in the third air cavity, the first fixed block is fixed to the inner wall of the third air cavity, and the first fixed block is in contact with the sliding plate.

[0014] According to a further technical solution, pull wires are provided on both sides of the second fixing block, one end of the pull wires is connected to the second fixing block, and the other end of the pull wires is connected to the second arc-shaped plate.

[0015] According to a further technical solution, an air outlet pipe is eccentrically arranged between two adjacent outer protective sleeves, an air outlet port is eccentrically arranged on the fifth air cavity, both ends of the air outlet pipe are respectively fixedly connected to two adjacent sealing covers, and the air outlet pipe is connected to the fifth air cavity through the air outlet port.

[0016] According to a further technical solution, a sixth air cavity is formed between the two push rods, an opening is provided on the push rod, and the fifth air cavity and the sixth air cavity are connected through the opening.

[0017] According to a further technical solution, an inner protective sleeve is sleeved on the outer side of the conductor, and the inner protective sleeve is in contact with the support body.

[0018] Compared with the prior art, the present invention has the following beneficial effects: When the robot is working, when external objects collide and squeeze the cable, they will first contact the first curved plate, and the first curved plate will shrink inward. While the first curved plate shrinks inward, it will push the push rod to slide into the second air cavity, pushing the gas in the second air cavity into the first air cavity. The gas in the first air cavity increases, and the gas pushes the second curved plate to slide outward. While sliding, the second curved plate will conflict with the first curved plate to prevent the force of external impact and squeezing from being transmitted to the conductor and damaging the cable. This ensures the relative safety of the cable inside when the robot is working, and avoids the cable rupture caused by the robot being hit in the key production link, so that the production process can continue, ensuring work efficiency.

[0019] When the temperature inside the cable rises, the gas collecting box replenishes gas into the fourth air cavity. When the gas passes through the fourth air cavity, the temperature inside the conductor is transferred to the support body, and the temperature on the support body is transferred to the fourth air cavity, thereby dissipating the heat of the cable. When the gas passes through the air duct, the gas in the fourth air cavity is guided to the fifth air cavity. Since the fifth air cavity and the sixth air cavity are connected, the gas will take away the heat generated by the conductor. At the same time, the gas used is an inert gas. When a fire occurs externally, the outer protective cover will be burned, and the internal gas will spray out to extinguish the external flame, thereby avoiding the influence of high temperature and fire on the cable. At the same time, the safety of the robot is ensured, economic losses are reduced, the working efficiency of the robot is improved, and the efficiency of production using the robot is ensured.

[0020] The cable is arranged in multiple sections, and a threaded protective tube is provided between the outer protective sheaths. Due to the setting of the threaded protective tube, bending here can be suitable for multiple bending, recovery, and multi-angle bending. The use of multiple sections in the outer protective sheath improves the bending property of the cable while resisting pressure and high temperature, so that the cable can be used normally by the robot in a complex working environment or when the robot needs to bend multiple times. The cable can be used in different environments and the working efficiency of the robot is ensured, thereby improving the overall working performance and reliability of the robot, and ensuring the smoothness, accuracy and continuity of the robot's movements, so that it can better complete various tasks, whether it is industrial production tasks or various service work in the service field. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 4 is a schematic cross-sectional structural diagram of the support body 13; Figure 5 is a schematic cross-sectional structural diagram of the first curved plate 14; Figure 6 is a schematic diagram of the three-dimensional structure of the first curved plate 14; Figure 7 is a schematic diagram of the three-dimensional structure of the support body 13; Figure 8 is a schematic diagram of the three-dimensional structure of the outer protective cover 12; Fig. 9 is a front view structural schematic diagram of the outer protective cover 12; Fig.10 for Figure 2 Schematic diagram of the cross-sectional structure at the middle BB; Fig.11 It is a schematic diagram of the three-dimensional structure of the threaded protection tube 25; Fig.12 It is a schematic diagram of a semi-thrown three-dimensional structure of the outer protective cover 12; Fig.13 is a schematic cross-sectional structural diagram of the outer protective cover 12; Fig.14 is a schematic diagram of the three-dimensional structure of the fixed sleeve 27; Fig.15 It is a schematic diagram of the three-dimensional structure of the air replenishing device 29.

[0024] Description of reference numerals: Conductor 11, outer protective sleeve 12, support body 13, first arc plate 14, second arc plate 15, first fixed block 16, slide plate 17, push rod 18, sliding plate 19, second fixed block 20, third fixed block 21, first air cavity 22, second air cavity 23, third air cavity 24, threaded protective tube 25, sealing cover 26, fixed sleeve 27, air hole 28, air replenishing device 29, rotating disk 30, pull wire 31, inner protective sleeve 32, fourth air cavity 33, air guide tube 34, air outlet pipe 35, fifth air cavity 36, air inlet pipe 37, sixth air cavity 38, air collecting box 39. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See attached Figure 1 To Attachment Fig.15 A multifunctional special cable for a robot comprises a multi-strand conductor 11 and a plurality of outer protective sleeves 12 sleeved on the outer side of the conductor 11, a fifth air cavity 36 is arranged in the outer protective sleeve 12, a plurality of support bodies 13 are arranged in the fifth air cavity 36, a plurality of first air cavities 22 are arranged circumferentially on the support body 13, two second arc-shaped plates 15 are symmetrically arranged in the first air cavity 22, the second arc-shaped plates 15 slide in the first air cavity 22, a plurality of second air cavities 23 are also arranged circumferentially on the support body 13, two second air cavities 23 arranged side by side are opened at the entity between the two first air cavities 22, the second air cavity 23 extends radially outward from the center of the support body 13, the second air cavity 23 is connected to the first air cavity 22, and a sliding plate 15 is arranged in the second air cavity 23. A sliding plate 19 is arranged, an arc groove is arranged on the outer side of the support body 13, the conductor 11 is fixed in the arc groove, the first air cavity 22 is an arc-shaped air cavity distributed around the arc groove, a first arc plate 14 is arranged on the outer side of the conductor 11, a third air cavity 24 is arranged in the first arc plate 14, two slide plates 17 are symmetrically arranged in the third air cavity 24, the slide plate 17 slides in the third air cavity 24, a push rod 18 is arranged on the slide plate 17, one end of the push rod 18 is connected to the slide plate 17, and the other end of the push rod 18 is connected to the sliding plate 19, the second arc plate 15 extends from the first air cavity 22 to wrap the conductor 11 and contacts with the first arc plate 14, and the first arc plate 14 contacts with the outer protective cover 12.

[0029] In this embodiment, when external matter collides and squeezes the cable, it will first contact the first curved plate 14, and the first curved plate 14 will shrink inward. While the first curved plate 14 shrinks inward, it will push the push rod 18 to slide into the second air cavity 23, pushing the gas in the second air cavity 23 into the first air cavity 22. The gas in the first air cavity 22 increases, and the gas pushes the second curved plate 15 to slide outward. While sliding, the second curved plate 15 will conflict with the first curved plate 14 to prevent the external impact and squeezing force from being transmitted to the conductor 11. When the first curved plate 14 and the second curved plate 15 conflict, the second curved plates 15 on both sides will also conflict, surrounding the conductor 11, thereby protecting the cable.

[0030] Preferably, a fourth air cavity 33 is provided at the center of the support body 13, and a plurality of air guide tubes 34 are provided outside the fourth air cavity 33. The fourth air cavity 33 is connected with the fifth air cavity 36 through the air guide tubes 34. A hose is provided between the plurality of support bodies 13, and both ends of the hose are respectively connected to two adjacent support bodies 13. Two adjacent fourth air cavities 33 are connected through the hose. An air replenishing device 29 is fixedly provided at the end of the cable, and the air replenishing device 29 is used to control the gas flow in the fourth air cavity 33.

[0031] Preferably, a sealing cover 26 is provided at the end of the outer protective sleeve 12, and holes are provided on the circumference of the sealing cover 26, and the conductor 11 passes through the holes. A threaded protective tube 25 is provided at the hole, and both ends of the threaded protective tube 25 are respectively connected to two adjacent sealing covers 26, and the threaded protective tube 25 is sleeved on the conductor 11.

[0032] Preferably, the end of the support body 13 is connected to the sealing cover 26, an air hole 28 is provided at the center of the sealing cover 26, an air intake pipe 37 is provided at the center of the two sealing covers 26, both ends of the air intake pipe 37 are respectively connected to the sealing cover 26, and the air intake pipe 37 and the fifth air cavity 36 are connected through the air hole 28.

[0033] Preferably, the air replenishing device 29 includes a fixed sleeve 27, a rotating disk 30 and an air collecting box 39. The fixed sleeve 27 is fixedly arranged on the sealing cover 26 at the end of the cable, and the fixed sleeve 27 is sleeved on the outside of the cable. A rotating disk 30 is arranged on the outside of the fixed sleeve 27, and the rotating disk 30 and the fixed sleeve 27 are rotatably connected. A plurality of air vents of different sizes are arranged on the circumference of the rotating disk 30, and the air vents are intermittently coaxial with the air holes 28. The air collecting box 39 is fixed on the sealing cover 26, and an annular space is arranged on the air collecting box 39. The rotating disk 30 is embedded in the annular space, and the rotating disk 30 rotates in the annular space. An air outlet is arranged in the center of the air collecting box 39, and the air outlet is intermittently coaxial with the air hole 28.

[0034] Preferably, a second fixed block 20 is provided in the first air cavity 22, the second fixed block 20 is connected to the inner wall of the first air cavity 22, the second arc plate 15 is in contact with the second fixed block 20, a third fixed block 21 is provided in the second air cavity 23, the third fixed block 21 is fixed on the inner wall of the second air cavity 23, the sliding plate 19 is in contact with the third fixed block 21, a first fixed block 16 is provided in the third air cavity 24, the first fixed block 16 is fixed to the inner wall of the third air cavity 24, and the first fixed block 16 is in contact with the slide plate 17.

[0035] Preferably, pull wires 31 are provided on both sides of the second fixing block 20 , one end of the pull wire 31 is connected to the second fixing block 20 , and the other end of the pull wire 31 is connected to the second arc-shaped plate 15 .

[0036] Preferably, an air outlet pipe 35 is eccentrically arranged between two adjacent outer protective covers 12, an air outlet is eccentrically arranged on the fifth air cavity 36, both ends of the air outlet pipe 35 are respectively fixedly connected to two adjacent sealing covers 26, and the air outlet pipe 35 is connected to the fifth air cavity 36 through the air outlet.

[0037] Preferably, a sixth air cavity 38 is formed between the two push rods 18 , and an opening is provided on the push rod 18 , and the fifth air cavity 36 and the sixth air cavity 38 are connected through the opening.

[0038] Preferably, an inner protective sleeve 32 is sheathed on the outer side of the conductor 11 , and the inner protective sleeve 32 is in contact with the support body 13 .

[0039] Specific use of the present invention: When the robot is moving, when external objects collide and squeeze the cable, they will first contact the first curved plate 14, and the first curved plate 14 will shrink inward. While the first curved plate 14 shrinks inward, it will push the push rod 18 to slide into the second air cavity 23, and push the gas in the second air cavity 23 into the first air cavity 22. The gas in the first air cavity 22 increases, and the gas pushes the second curved plate 15 to slide outward. While sliding, the second curved plate 15 will conflict with the first curved plate 14, preventing the external impact and squeezing force from being transmitted to the conductor 11, protecting the conductor 11 from being damaged by external forces, and ensuring the safe use of the cable.

[0040] At the same time, when the temperature inside the cable rises, the gas collecting box 39 transports gas to the fourth air cavity 33. When the gas passes through the fourth air cavity 33, the temperature in the conductor 11 is transferred to the support body 13, and the temperature on the support body 13 is transferred to the fourth air cavity 33, so as to dissipate the heat of the cable. When the gas passes through, the air duct 34 guides the gas in the fourth air cavity 33 to the fifth air cavity 36. Since the fifth air cavity 36 and the sixth air cavity 38 are connected, the gas will take away the heat generated by the conductor 11. At the same time, the gas used is an inert gas. When a fire occurs externally, the outer protective sheath 12 is burned, and the internal gas will be ejected to extinguish the external flame, thereby playing a role in cooling and fire prevention, and ensuring that the cable will not be damaged by high temperature and fire. The gas flow rate can be adjusted by rotating the rotating disk 30.

[0041] A threaded protective tube 25 is arranged between the outer protective sleeves 12. Since the patterns on the threaded protective tube 25 are provided with threads, bending here can be suitable for multiple bending, restoration, and multi-angle bending, so that the required bending work of the robot is guaranteed when it is working. No matter what kind of bending work requirements are faced, the cable can be better adapted.

[0042] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A multifunctional special cable for robots, characterized in that: The invention comprises a plurality of conductors (11) and a plurality of outer protective sleeves (12) sleeved on the outer sides of the conductors (11); a fifth air cavity (36) is arranged in the outer protective sleeve (12); a plurality of support bodies (13) are arranged in the fifth air cavity (36); a plurality of first air cavities (22) are arranged circumferentially on the support body (13); two second arc-shaped plates (15) are symmetrically arranged in the first air cavity (22); the second arc-shaped plates (15) slide in the first air cavity (22); the support body (13) is also circumferentially arranged with a plurality of second air cavities (23); two second air cavities (23) are arranged side by side at a solid part between two first air cavities (22); the second air cavity (23) radially extends outward from the center of the support body (13); the second air cavity (23) is connected to the first air cavity (22); a sliding plate (19) is slidably arranged in the second air cavity (23); The support body (13) is provided with an arc groove on the outside, the conductor (11) is fixed in the arc groove, the first air cavity (22) is an arc-shaped air cavity distributed around the arc groove, the conductor (11) is provided with a first arc plate (14) on the outside, a third air cavity (24) is provided in the first arc plate (14), two slide plates (17) are symmetrically provided in the third air cavity (24), the slide plates (17) slide in the third air cavity (24), a push rod (18) is provided on the slide plate (17), one end of the push rod (18) is connected to the slide plate (17), and the other end of the push rod (18) is connected to the sliding plate (19), the second arc plate (15) extends from the first air cavity (22) to wrap the conductor (11) and contacts the first arc plate (14), and the first arc plate (14) contacts the outer protective cover (12).

2. A multifunctional special cable for robots according to claim 1, characterized in that: A fourth air cavity (33) is arranged at the center of the support body (13), and a plurality of air guide tubes (34) are arranged outside the fourth air cavity (33). The fourth air cavity (33) is connected to the fifth air cavity (36) through the air guide tubes (34). A hose is arranged between the plurality of support bodies (13), and the two ends of the hose are respectively connected to two adjacent support bodies (13). Two adjacent fourth air cavities (33) are connected through the hose. An air supply device (29) is fixedly arranged at the end of the cable, and the air supply device (29) is used to control the flow of gas in the fourth air cavity (33).

3. A multifunctional special cable for robots according to claim 2, characterized in that: A sealing cover (26) is provided at the end of the outer protective sleeve (12), a hole is provided on the circumference of the sealing cover (26), the conductor (11) passes through the hole, a threaded protective tube (25) is provided at the hole, two ends of the threaded protective tube (25) are respectively connected to two adjacent sealing covers (26), and the threaded protective tube (25) is sleeved on the conductor (11).

4. A multifunctional special cable for robots according to claim 3, characterized in that: The end of the support body (13) is connected to the sealing cover (26), an air hole (28) is arranged at the center of the sealing cover (26), an air intake pipe (37) is arranged at the center of the two sealing covers (26), both ends of the air intake pipe (37) are respectively connected to the sealing cover (26), and the air intake pipe (37) and the fifth air cavity (36) are connected through the air hole (28).

5. A multifunctional special cable for robots according to claim 4, characterized in that: The air replenishing device (29) comprises a fixed sleeve (27), a rotating disk (30) and an air collecting box (39). The sealing cover (26) at the end of the cable is fixedly provided with a fixed sleeve (27), the fixed sleeve (27) is sleeved on the outside of the cable, a rotating disk (30) is provided on the outside of the fixed sleeve (27), the rotating disk (30) and the fixed sleeve (27) are rotatably connected, a plurality of air holes of different sizes are circumferentially provided on the rotating disk (30), the air holes are intermittently coaxial with the air holes (28), the air collecting box (39) is fixed on the sealing cover (26), an annular space is provided on the air collecting box (39), the rotating disk (30) is embedded in the annular space, the rotating disk (30) rotates in the annular space, an air outlet is provided at the center of the air collecting box (39), the air outlet is intermittently coaxial with the air hole (28).

6. A multifunctional special cable for robots according to claim 2, characterized in that: A second fixed block (20) is arranged in the first air cavity (22), the second fixed block (20) is connected to the inner wall of the first air cavity (22), the second arc plate (15) and the second fixed block (20) are in contact with each other, a third fixed block (21) is arranged in the second air cavity (23), the third fixed block (21) is fixed on the inner wall of the second air cavity (23), the sliding plate (19) and the third fixed block (21) are in contact with each other, a first fixed block (16) is arranged in the third air cavity (24), the first fixed block (16) is fixed on the inner wall of the third air cavity (24), and the first fixed block (16) and the sliding plate (17) are in contact with each other.

7. A multifunctional special cable for robots according to claim 6, characterized in that: Pull wires (31) are provided on both sides of the second fixed block (20), one end of the pull wire (31) is connected to the second fixed block (20), and the other end of the pull wire (31) is connected to the second arc-shaped plate (15).

8. The multifunctional special cable for robots according to claim 2, characterized in that: An air outlet pipe (35) is eccentrically arranged between two adjacent outer protective sleeves (12), an air outlet port is eccentrically arranged on the fifth air cavity (36), two ends of the air outlet pipe (35) are respectively fixedly connected to two adjacent sealing covers (26), and the air outlet pipe (35) is connected to the fifth air cavity (36) through the air outlet port.

9. The multifunctional special cable for robots according to claim 3, characterized in that: A sixth air cavity (38) is formed between the two push rods (18), an opening is provided on the push rod (18), and the fifth air cavity (36) and the sixth air cavity (38) are connected through the opening.

10. The multifunctional special cable for robots according to claim 2, characterized in that: The conductor (11) is covered with an inner protective sleeve (32) on the outside, and the inner protective sleeve (32) is in contact with the support body (13).

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