Anti-toppling feeding robot for cable material production

Abstract

The invention relates to the technical field of cable production equipment, and particularly discloses an anti-toppling feeding robot for cable material production, the anti-toppling feeding robot comprises a base, the interior of the base is hollow, and a cover plate is fixedly mounted at the top of the base. The carrying frame starts to move towards the rear wheels by a certain distance from the gravity position of the slope but does not exceed the rear wheels, the overall gravity is rear, the overall stability of the equipment during climbing is greatly improved, the problem that a conventional feeding robot topples over due to unstable walking caused by heavy bearing during climbing is solved, and the service life of the equipment is prolonged. And meanwhile, the road holding force of the equipment can be greatly improved through the crawler belts, the stability is further improved, meanwhile, the friction force between the whole equipment and the ground is enhanced through the bent stabilizing plates, the problem that the equipment topples over due to the fact that no blocking measures exist when the equipment slips on a slope is solved, and the working stability of the equipment is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable production equipment, in particular to a cable material production anti-toppling feeding robot. BACKGROUND

[0002] The cable material production feeding robot is a key automated equipment for transporting cable raw materials (such as metal materials, plastic particles, etc.) in the cable production process, which usually has the functions of moving, carrying and fixed-point feeding. In actual factory application, the feeding robot needs to run stably under different terrain, slope and load conditions to ensure the continuity of production and the timeliness of material supply.

[0003] For example, the application number "CN202010365495.3" discloses a wheeled mine material distribution robot power chassis, which improves the overall intelligent degree and operation efficiency by designing two systems. However, the existing feeding robot still has some defects in actual use: on the one hand, it is easy to lose stability or even tip over due to the forward movement of the center of gravity when climbing or on uneven road surfaces, and lacks an effective real-time center of gravity adjustment mechanism; on the other hand, although the tracked walking mechanism can improve the ground adhesion, it is relatively cumbersome to disassemble and maintain, affecting the continuous operation efficiency of the equipment; in addition, most equipment lacks automatic sealing function for the load container when transporting on a slope, and the material is easy to scatter in the inclined state, which not only causes waste but also brings safety hazards. Therefore, there is an urgent need for an anti-toppling feeding robot that can automatically adjust the center of gravity when climbing, enhance the ground adhesion, and have the functions of quick disassembly and maintenance of the tracked walking mechanism and self-adaptive sealing of the carrying container, to improve the stability, safety and maintenance convenience of the cable material conveying process. SUMMARY

[0004] (I) Technical problems solved

[0005] The present application provides a cable material production anti-toppling feeding robot, which solves the problems mentioned in the background.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: A cable material production anti-toppling feeding robot, comprising a base, the inside of the base is hollow, a cover plate is fixedly installed on the top of the base, further comprising: a carrying mechanism fixedly installed on the base; a stabilizing mechanism fixedly installed in the inside of the base; wherein the carrying mechanism comprises a carrying frame arranged on the upper surface of the cover plate, the carrying mechanism further comprises a connecting seat fixedly connected to the lower surface of the middle part of the cover plate, a motor is fixedly connected to the connecting seat, drive shafts are rotatably connected to both ends of the motor, the drive shafts are rotatably connected to the inside surfaces of both sides of the base at the ends away from the motor, and transmission belts are rotatably connected to the ends of the drive shafts away from the motor.

[0008] According to one embodiment of the present application, the inside surfaces of both sides of the base are symmetrically provided with mounting pipes, the ends of the mounting pipes are symmetrically rotatably connected with rotating shafts, the rotating shafts pass through the base, the outer ends of the rotating shafts are fixedly connected with walking wheels, the inner ends of the rotating shafts are rotatably connected with the ends of the transmission belts away from the drive shafts, and the walking wheels are rotatably connected with caterpillar belts between every two walking wheels.

[0009] According to one embodiment of the present application, the outside surfaces of both sides of the base are symmetrically provided with moving grooves, moving rings are slidably connected in the moving grooves, the moving rings are rotatably sleeved on the outside surfaces of the rotating shafts, and the inside surfaces of the moving rings are fixedly connected with the ends of the mounting pipes.

[0010] According to one embodiment of the present application, the inside surface of the base is rotatably connected with an adjusting rod, the ends of the adjusting rod are provided with threads, the threads at the ends of the adjusting rod are symmetrically arranged, the ends of the adjusting rod pass through the mounting pipes, the adjusting rod is connected with the mounting pipe through threads, the end of the adjusting rod is fixedly connected with an adjusting ring, and the adjusting ring is arranged on the outside of the base.

[0011] According to one embodiment of the present application, the stabilizing mechanism comprises a first telescopic rod, the first telescopic rod is fixedly connected to the bottom surface of the cover plate, four first telescopic rods are symmetrically arranged, and the first telescopic rods are arranged in the inside of the base, the bottom of the first telescopic rod is fixedly connected with a mounting plate, and the mounting plate is slidably connected to the bottom surface of the base.

[0012] According to one embodiment of the present application, the bottom surface of the mounting plate is fixedly connected with a stabilizing plate, the stabilizing plate is arranged in a flap shape, and the bottom surface of the stabilizing plate is arranged in a parallel state with the bottom surface of the base.

[0013] According to one embodiment of the present application, the upper surface of the cover plate is provided with a sliding groove, the sliding groove is symmetrically and fixedly connected with a sliding rod, the sliding groove is elastically and slidably connected with a sliding plate through the sliding rod, the upper surface of the sliding plate is fixedly connected to the bottom surface of the carrying frame, and the two sides of the cover plate are rotatably connected with rollers, and the top of the roller is attached to the bottom surface of the two sides of the carrying frame.

[0014] According to one embodiment of the present application, the sliding groove is fixedly connected with a pressing capsule, the end of the pressing capsule is fixedly embedded in the bottom surface of the sliding plate, and the internal cavity of the pressing capsule is in communication with the internal cavity of the first telescopic rod.

[0015] According to one embodiment of the present application, the two sides of the carrying frame are rotatably connected with an adapter rod, the end of the adapter rod is provided with a thread, the outer surface of the adapter rod is fixedly sleeved with a baffle, the side surface of the carrying frame is fixedly connected with a sliding frame, the sliding frame is slidably connected with an adapter plate, the two ends of the adapter plate are connected with the adapter rod through a thread, the bottom inner surface of the adapter plate is fixedly connected with a second telescopic rod, the end of the second telescopic rod away from the adapter plate is fixedly connected to the side surface of the carrying frame, and the side surface of the cover plate is reserved with an interface, wherein the internal cavity of the pressing capsule is in communication with the internal cavity of the second telescopic rod through the interface and a connecting hose.

[0016] When the metal material inside the cable needs to be transported, the metal raw material can be placed in the carrying frame of the device, and then the system control motor is started, the motor drives the driving shaft at both ends to rotate, the transmission belt rotatably connected with the driving shaft drives the rotating shaft at both ends of the mounting pipe to rotate, thereby driving the walking wheels to rotate, and finally the caterpillar belt starts to rotate, that is, the device starts to carry the metal raw material to the work station for feeding.

[0017] (Three) beneficial effects

[0018] The present application provides a cable material production anti-toppling feeding robot.

[0019] (I) The cable material production anti-toppling feeding robot can adjust the distance between the mounting pipes by rotating the adjusting ring, so that the two groups of walking wheels start to move closer to each other, thereby facilitating the removal and replacement of the caterpillar belt from the walking wheels, solving the problem of difficult replacement of the caterpillar belt of the existing robot, and after the replacement of the caterpillar belt is completed, the adjusting ring is reversely rotated to reset the mounting pipe and re-tighten the caterpillar belt, thereby greatly reducing the disassembly and assembly time of the caterpillar belt of the device and facilitating the overall maintenance of the device.

[0020] (II), the anti-toppling feeding robot produced by the cable material, when encountering a slope during movement, the whole will tilt, at this time the metal raw materials in the carrying frame begin to slide backward along the upper surface of the cover plate under the action of gravity, that is, the sliding plate in the sliding groove on the upper surface of the cover plate begins to slide along the sliding rod, and then the gravity position of the carrying frame on the device begins to move a distance backward to the rear wheel but not more than the rear wheel, so that the whole gravity of the device is placed at the rear when climbing the slope, greatly improving the overall stability of the device when climbing the slope, avoiding the problem of toppling caused by unstable walking of the conventional feeding robot due to heavy load when climbing the slope, and the track can also greatly improve the grip of the device, further improving the stability, and when the carrying frame is placed at the rear, the extrusion capsule is extruded by the sliding plate, so that the extrusion capsule delivers the internal air pressure to the first telescopic rod, so that the first telescopic rod expands downward, and then pushes the mounting plate at the bottom to move downward along the base, finally the stable plate on the bottom surface of the mounting plate contacts the slope ground, the bending stable plate enhances the friction between the whole device and the ground, avoids the problem of toppling caused by lack of blocking measures when the device slips on the slope, and greatly improves the working stability of the device.

[0021] (III), the anti-toppling feeding robot produced by the cable material, when the carrying frame is placed at the rear, the internal air pressure is also delivered to the second telescopic rod, so that the second telescopic rod starts to push the adapter plate away from the carrying frame, that is, the adapter plate slides on the sliding frame, and starts to drive the adapter rod to rotate through the thread action, so as to drive the baffle to flip, and finally flip and engage above the carrying frame, realize the closure of the carrying frame when the device climbs the slope, avoid the problem of metal raw material leakage caused by device tilting, and when the device is pushed to the horizontal ground, the sliding plate starts to gradually reset under the action of the elastic force, so as to reopen the carrying frame, realize the closure of the carrying frame during transportation, and automatically reopen when the device reaches the specified position, not only avoid the problem of raw material falling, but also not affect the problem of raw material taking, greatly improve the convenience of the device. DRAWINGS

[0022] Figure 1 is the overall structure diagram of the present application;

[0023] Figure 2 is the mounting structure diagram of the carrying frame of the present application;

[0024] Figure 3 is the internal structure diagram of the base of the present application;

[0025] Figure 4 is the split structure diagram of the base of the present application;

[0026] Figure 5 is the mounting pipe and its connecting structure diagram of the present application;

[0027] Figure 6 This is a schematic diagram of the adjusting rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation structure of the baffle of the present invention;

[0029] Figure 8 This is a schematic diagram of the cover plate of the present invention.

[0030] In the diagram: 1. Base; 2. Cover plate; 3. Carrying mechanism; 31. Carrying frame; 32. Connecting seat; 33. Motor; 34. Drive shaft; 35. Transmission belt; 36. Mounting pipe; 37. Rotating shaft; 38. Walking wheel; 39. Track; 310. Moving groove; 311. Moving ring; 312. Adjusting rod; 313. Adjusting ring; 4. Stabilizing mechanism; 41. No. 1 telescopic rod; 42. Mounting plate; 43. Stabilizing plate; 44. Slide groove; 45. Slide rod; 46. Sliding plate; 47. Roller; 48. Compression bladder; 49. Adapter rod; 410. Baffle; 411. Sliding frame; 412. Adapter plate; 413. No. 2 telescopic rod. Detailed Implementation

[0031] 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.

[0032] First embodiment: as follows Figures 1 to 8 As shown, the present invention provides a technical solution: an anti-tipping feeding robot for cable material production, including a base 1, the interior of the base 1 being hollow, a cover plate 2 fixedly installed on the top of the base 1, and further comprising:

[0033] The transport mechanism 3 is fixedly installed on the base 1;

[0034] Stabilizing mechanism 4 is fixedly installed inside the base 1;

[0035] The transport mechanism 3 includes a transport frame 31, which is disposed on the upper surface of the cover plate 2. The transport mechanism 3 also includes a connecting seat 32, which is fixedly connected to the lower surface of the middle part of the cover plate 2. A motor 33 is fixedly connected to the connecting seat 32. Drive shafts 34 are rotatably connected to both ends of the motor 33. The end of the drive shaft 34 away from the motor 33 is rotatably connected to the inner surfaces of both sides of the base 1. A transmission belt 35 is rotatably connected to the end of the drive shaft 34 away from the motor 33.

[0036] The two inner surfaces of the base 1 are symmetrically provided with mounting tubes 36. The two ends of the mounting tubes 36 are symmetrically rotatably connected with rotating shafts 37. The rotating shafts 37 pass through the base 1. The outer end of the rotating shafts 37 is fixedly connected with a walking wheel 38. The inner end of the rotating shafts 37 is rotatably connected to the end of the transmission belt 35 away from the drive shaft 34. The walking wheels 38 are rotatably connected to each other with a track 39.

[0037] The outer surfaces of both sides of the base 1 are symmetrically provided with moving grooves 310. Moving rings 311 are slidably connected in the moving grooves 310. The moving rings 311 are rotatably sleeved on the outer surface of the rotating shaft 37. The inner surfaces of the moving rings 311 are respectively fixedly connected to the two ends of the mounting tube 36.

[0038] An adjusting rod 312 is rotatably connected to the inner surface of the base 1. The two ends of the adjusting rod 312 are threaded and the threads at both ends of the adjusting rod 312 are symmetrically arranged. At the same time, the two ends of the adjusting rod 312 pass through the mounting tube 36. The adjusting rod 312 and the mounting tube 36 are connected by threads. An adjusting ring 313 is fixedly connected to the end of the adjusting rod 312. The adjusting ring 313 is located on the outside of the base 1.

[0039] Second embodiment: as follows Figures 1 to 8 As shown, the stabilizing mechanism 4 includes a first telescopic rod 41, which is fixedly connected to the bottom surface of the cover plate 2. Four first telescopic rods 41 are symmetrically arranged and are located inside the base 1. A mounting plate 42 is fixedly connected to the bottom of the first telescopic rod 41, and the mounting plate 42 is slidably connected to the bottom surface of the base 1.

[0040] A stabilizing plate 43 is fixedly connected to the bottom surface of the mounting plate 42. The stabilizing plate 43 is configured as a folded plate, and the bottom surface of the stabilizing plate 43 is parallel to the bottom surface of the base 1.

[0041] The upper surface of the cover plate 2 is provided with a sliding groove 44, and a sliding rod 45 is symmetrically fixedly connected in the sliding groove 44. A sliding plate 46 is elastically slidably connected in the sliding groove 44 through the sliding rod 45. The upper surface of the sliding plate 46 is fixedly connected to the bottom surface of the transport frame 31. Rollers 47 are rotatably connected to both sides of the cover plate 2, and the top of the rollers 47 is attached to the bottom surfaces of both sides of the transport frame 31.

[0042] A compression bladder 48 is fixedly connected inside the slide groove 44. The end of the compression bladder 48 is fixedly embedded in the bottom surface of the sliding plate 46. The internal cavity of the compression bladder 48 is connected to the internal cavity of the first telescopic rod 41.

[0043] Two sides of the carrying frame 31 are rotatably connected through the adapter rods 49, the end of the adapter rod 49 is provided with a thread, the outer surface of the adapter rod 49 is fixedly sleeved with the baffle 410, the side surface of the carrying frame 31 is fixedly connected with the sliding frame 411, the sliding frame 411 is slidably connected with the adapter plate 412, the two ends of the adapter plate 412 are connected with the adapter rod 49 through the thread, the bottom inner side surface of the adapter plate 412 is fixedly connected with the second telescopic rod 413, the end of the second telescopic rod 413 away from the adapter plate 412 is fixedly connected with the side surface of the carrying frame 31, the side surface of the cover plate 2 is reserved with the interface, the internal cavity of the extrusion capsule 48 is communicated with the internal cavity of the second telescopic rod 413 through the interface and the connecting hose.

[0044] When the metal raw materials need to be transported inside the cable during work, the metal raw materials can be placed in the carrying frame 31 of the device, and then the system control motor 33 is started. After the motor 33 is started, the driving shaft 34 at both ends is rotated, the transmission belt 35 connected with the driving shaft 34 is rotated to drive the rotating shaft 37 at both ends of the installation pipe 36 to rotate, thereby driving the walking wheel 38 to rotate, and finally making the track 39 start to rotate, that is, the device starts to carry the metal raw materials to the work station for feeding. When the track 39 needs to be replaced, the adjusting ring 313 is rotated, the adjusting ring 313 drives the adjusting rod 312 to rotate, thereby driving the two installation pipes 36 to start to move close to each other through the screw action. The two ends of the installation pipe 36 are fixedly connected with the moving ring 311, and the moving ring 311 is slidably connected in the moving groove 310. That is, the distance between the installation pipes 36 can be contracted by rotating the adjusting ring 313, so that the two groups of walking wheels 38 start to move close to each other, thereby facilitating the track 39 to be taken off from the walking wheel 38 for replacement, solving the problem of difficult replacement of the existing robot track 39. After the replacement of the track 39 is completed, the adjusting ring 313 is reversely rotated to reset the installation pipe 36, thereby tightly fastening the track 39, greatly reducing the disassembly and assembly time of the track 39 of the device, and facilitating the overall maintenance of the device. When the device encounters a slope during movement, the whole device will be inclined. At this time, the metal raw materials in the carrying frame 31 start to slide backward along the upper surface of the cover plate 2 under the action of gravity, that is, the sliding plate 46 in the sliding groove 44 on the upper surface of the cover plate 2 starts to slide along the sliding rod 45, thereby making the gravity position of the carrying frame 31 on the device move a distance to the rear wheel but not more than the rear wheel, so that the overall gravity of the device is placed at the rear when climbing the slope, greatly improving the overall stability of the device when climbing the slope, avoiding the problem that the conventional feeding robot is not stable when climbing the slope due to heavy load, causing the robot to fall. At the same time, the track 39 can also greatly improve the grip of the device, further improving the stability. When the carrying frame 31 is placed at the rear, the sliding plate 46 will extrude the extrusion bag 48, so that the extrusion bag 48 delivers the internal air pressure to the first telescopic rod 41, thereby making the first telescopic rod 41 expand downward, and further pushing the mounting plate 42 at the bottom to move downward along the base 1, finally making the stable plate 43 on the bottom surface of the mounting plate 42 contact the slope ground, and the bent stable plate 43 enhances the friction between the device and the ground, avoiding the problem that the device slips without blocking measures when climbing the slope, greatly improving the working stability of the device. At the same time, when the carrying frame 31 is placed at the rear, the internal air pressure is also delivered to the second telescopic rod 413, so that the second telescopic rod 413 starts to push the adapter plate 412 away from the carrying frame 31, that is, the adapter plate 412 slides on the sliding frame 411, and the adapter rod 49 starts to rotate through the screw action, thereby driving the baffle 410 to start to flip, and finally the baffle 410 is buckled on the top of the carrying frame 31.The carrying frame 31 is closed when the device climbs, avoiding the problem of metal raw material leakage caused by the device tilting. When the device is pushed to the horizontal ground, the sliding plate 46 starts to gradually reset under the action of the elastic force, thereby reopening the carrying frame 31. The carrying frame 31 is closed during transportation and automatically reopened when the device reaches the designated position, avoiding the problem of raw material falling and not affecting the problem of raw material taking, greatly improving the convenience of the device.

[0045] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. An anti-toppling feeding robot for cable compound production, comprising a base (1), characterized in that: The inside of the base (1) is hollow, the top of the base (1) is fixedly installed with a cover plate (2), further comprising: A carrying mechanism (3) is fixedly installed on the base (1); A stabilizing mechanism (4) is fixedly installed inside the base (1); The carrying mechanism (3) comprises a carrying frame (31) arranged on the upper surface of the cover plate (2), further comprising a connecting seat (32) fixedly connected to the lower surface of the middle part of the cover plate (2), a motor (33) fixedly connected to the connecting seat (32), both ends of the motor (33) rotatably connected with a drive shaft (34), one end of the drive shaft (34) away from the motor (33) rotatably connected to the inner surface of both sides of the base (1), and one end of the drive shaft (34) away from the motor (33) rotatably connected with a transmission belt (35).

2. The anti-toppling feeding robot for cable material production according to claim 1, characterized in that: The inner surface of both sides of the base (1) is symmetrically provided with a mounting pipe (36), both ends of the mounting pipe (36) are symmetrically rotatably connected with a rotating shaft (37) penetrating through the base (1), the outer end of the rotating shaft (37) is fixedly connected with a walking wheel (38), and the inner end of the rotating shaft (37) is rotatably connected with one end of the transmission belt (35) away from the drive shaft (34).

3. The anti-toppling material feeding robot for cable production according to claim 2, characterized in that: The outer surface of both sides of the base (1) is symmetrically provided with a moving groove (310) penetrating through, a moving ring (311) is slidably connected in the moving groove (310), the moving ring (311) is rotatably sleeved on the outer surface of the rotating shaft (37), and the inner surface of the moving ring (311) is fixedly connected with both ends of the mounting pipe (36).

4. The anti-toppling feeding robot for cable material production according to claim 3, characterized in that: The inner surface of the base (1) is rotatably connected with an adjusting rod (312), both ends of the adjusting rod (312) are provided with threads, the threads at both ends of the adjusting rod (312) are symmetrically arranged, both ends of the adjusting rod (312) penetrate through the mounting pipe (36), the adjusting rod (312) and the mounting pipe (36) are connected through threads, and the end of the adjusting rod (312) is fixedly connected with an adjusting ring (313) arranged outside the base (1).

5. The anti-toppling material feeding robot for cable production according to claim 4, characterized in that: The stabilizing mechanism (4) comprises a first telescopic rod (41) fixedly connected to the bottom surface of the cover plate (2), four first telescopic rods (41) are symmetrically arranged, and the first telescopic rods (41) are arranged inside the base (1), the bottom of the first telescopic rod (41) is fixedly connected with a mounting plate (42) slidingly connected to the bottom surface of the base (1).

6. The anti-toppling material feeding robot for cable production according to claim 5, characterized in that: The bottom surface of the mounting plate (42) is fixedly connected with a stabilizing plate (43) arranged in a foldable plate shape, and the bottom surface of the stabilizing plate (43) and the bottom surface of the base (1) are arranged in a mutually parallel state.

7. The anti-toppling material feeding robot for cable production according to claim 6, characterized in that: The upper surface of the cover plate (2) is provided with a sliding groove (44), the sliding groove (44) is symmetrically and fixedly connected with a sliding rod (45), the sliding groove (44) is elastically and slidably connected with a sliding plate (46) through the sliding rod (45), the upper surface of the sliding plate (46) is fixedly connected with the bottom surface of the carrying frame (31), the both sides of the cover plate (2) are rotatably connected with a roller (47), and the top of the roller (47) is attached to the bottom surface of the both sides of the carrying frame (31).

8. The anti-toppling material feeding robot for cable production according to claim 7, characterized in that: The sliding groove (44) is fixedly connected with a pressing bag (48), the end of the pressing bag (48) is fixedly embedded in the bottom surface of the sliding plate (46), and the internal cavity of the pressing bag (48) is in communication with the internal cavity of the first telescopic rod (41).

9. The anti-toppling material feeding robot for cable production according to claim 8, characterized in that: The both sides of the carrying frame (31) are rotatably connected with an adapter rod (49), the end of the adapter rod (49) is provided with a thread, the outer surface of the adapter rod (49) is fixedly sleeved with a baffle (410), the side surface of the carrying frame (31) is fixedly connected with a sliding frame (411), the sliding frame (411) is slidably connected with an adapter plate (412), the both ends of the adapter plate (412) are connected with the adapter rod (49) through threads, the bottom inner surface of the adapter plate (412) is fixedly connected with a second telescopic rod (413), the end, away from the adapter plate (412), of the second telescopic rod (413) is fixedly connected with the side surface of the carrying frame (31), and the side surface of the cover plate (2) is reserved with an interface, wherein the internal cavity of the pressing bag (48) is in communication with the internal cavity of the second telescopic rod (413) through the interface and a connecting hose.

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