A corrugated pipe grooving device

Abstract

This utility model belongs to the field of corrugated pipe technology, specifically a corrugated pipe grooving device, including a mounting frame. Roller seats are fixedly mounted on the upper parts of both ends of the mounting frame. A lifting seat is provided above the roller seats, both ends of which are fixedly mounted on a bracket. A fixed frame is fixedly mounted on the top of the lifting seat. A rack is slidably mounted inside the center of the top of the fixed frame. A U-shaped frame is fixedly mounted on the lower end of the rack. A rotating shaft is rotatably mounted inside the lower end of the U-shaped frame. Ring blades are slidably mounted on both ends of the rotating shaft. A limit rod is provided above the rotating shaft and fixedly mounted inside the U-shaped frame. Clamping blocks are slidably mounted on both ends of the limit rod. Limit plates are provided on both sides of the upper end of the clamping blocks and fixedly mounted inside the U-shaped frame. By adjusting the position of the ring blades on the rotating shaft and using the clamping blocks to limit and fix the ring blades, the distance between the ring blades can be flexibly adjusted according to the grooving requirements of different specifications of corrugated pipes.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically a corrugated pipe grooving device. Background Technology

[0002] A corrugated pipe is a tubular component with a unique corrugated structure. Due to its flexibility, corrosion resistance, high and low temperature resistance, and good sealing performance, it is widely used in industries, construction, municipal engineering, electronic communications and other fields.

[0003] A corrugated pipe grooving device typically consists of a frame, a feeding mechanism, and a cutting mechanism. During operation, the feeding mechanism feeds the corrugated pipe to the appropriate position and the cutter is accurately positioned. Then, the cutting mechanism starts, and the cutter cuts the corrugated pipe to complete the grooving work.

[0004] Existing corrugated pipe grooving devices are not precise enough in adjusting the cutting depth and blade spacing, and mostly use coarse mechanical adjustment methods, which makes it difficult to meet the high cutting accuracy requirements of corrugated pipes of different specifications. This results in inconsistent grooving depths and widths in the corrugated pipes, affecting the assembly accuracy of the corrugated pipe with other components and the overall performance. Therefore, a new corrugated pipe grooving device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the issue that the existing corrugated pipe grooving devices mentioned in the background art are not precise enough in adjusting the cutting depth and blade spacing, and mostly adopt coarse mechanical adjustment methods, it is difficult to meet the high requirements for cutting precision of corrugated pipes of different specifications. This results in inconsistent grooving depths and widths of the cut corrugated pipes, affecting the assembly accuracy of the corrugated pipe with other components and the overall performance. Therefore, this utility model proposes a corrugated pipe grooving device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A corrugated pipe grooving device of this utility model includes a mounting frame. Roller seats are fixedly mounted on the upper parts of both ends of the mounting frame. Three support rollers are rotatably mounted in parallel inside the roller seats. Brackets are fixedly mounted on the upper parts of the mounting frame on both sides of the roller seats. A lifting seat is provided above the roller seats, with both ends fixedly mounted on the brackets. A second cylinder is fixedly mounted at the center of the top of each bracket. The piston cylinders of the second cylinders are respectively fixedly connected to the upper parts of both ends of the lifting seat. A through hole is opened at the center of the top of the lifting seat. A fixed frame is fixedly mounted on the outer side of the upper part of the through hole. A sliding hole is opened on one side of the center of the top of the fixed frame. A rack is slidably mounted in the sliding hole. A U-shaped frame is fixedly mounted at the lower end of the rack. A rotating shaft is rotatably mounted in the lower end of the U-shaped frame. The shaft has a slot, and annular blades are slidably mounted on both ends. A protrusion is formed in the inner hole of each annular blade and slidably positioned within the slot. A limit rod is fixedly mounted on the top of the shaft within a U-shaped frame. Clamping blocks are slidably mounted on both ends of the limit rod. Limiting plates are fixedly mounted on both sides of the upper end of each clamping block within the U-shaped frame. A limit groove is formed at the bottom of each clamping block, and the upper part of the annular blade is slidably positioned within the clamping block's limit groove. A connecting rod is rotatably mounted on the top of each clamping block. Pressure rollers are rotatably mounted on both sides of the bottom of the lifting seat. The pressure rollers help maintain the stability of the corrugated pipe during grooving, reducing grooving quality problems caused by the corrugated pipe jumping or shifting. The clamping blocks and limit rods secure the annular blade, ensuring its stability during grooving and improving grooving accuracy.

[0007] Preferably, a slide table is fixedly installed at the upper center of the mounting frame, and slide blocks are slidably installed at both ends of the slide table. A first cylinder is fixedly installed at the upper ends of both ends of the slide table on the outer side of each slide block. The piston rod of the first cylinder is fixedly connected to the center of the outer side of the slide block. Multiple rotating rollers are rotatably installed in an array inside each slide block. The rotating rollers rotate in cooperation with the conveyor belt. A first motor is fixedly installed at the bottom of the same end of each slide block. The rotating shaft of the first motor is fixedly connected to the lower end of the rotating roller. Through the extension and retraction of the first cylinder, the slide block can be accurately pushed to slide on the slide table, thereby driving the conveyor belt to move and realizing automatic feeding of corrugated pipes of different diameters.

[0008] Preferably, a support is fixedly installed at the center of the top of the fixed frame, and a second motor is fixedly installed on one side of the support. A gear is installed inside the support and fixedly mounted on the rotating shaft of the second motor. The teeth on the gear mesh with the grooves on the rack. The second motor drives the gear to rotate, and the gear meshes with the rack to transmit power, enabling the rack to move up and down precisely. This, in turn, drives the U-shaped frame and the annular blade to move up and down, which can achieve precise adjustment of the cutting depth, meet the requirements of different corrugated pipes for the groove depth, and improve the cutting accuracy and flexibility.

[0009] Preferably, an electric cylinder is fixedly installed at the top center of the U-shaped frame, and a mounting seat is fixedly installed on the piston rod of the electric cylinder. The other end of the connecting rod is rotatably installed on both sides of the lower end of the mounting seat. The extension and retraction movement of the piston rod of the electric cylinder can drive the mounting seat to move up and down, thereby causing the connecting rod to push the clamping block to slide on the limiting rod, thus realizing the flexible adjustment of the spacing of the annular blade.

[0010] Preferably, a grooving motor is fixedly installed on the top of one side of the U-shaped frame, and one end of the rotating shaft passes through the U-shaped frame and rotating wheels are fixedly installed on both the rotating shaft and the rotating shaft of the grooving motor. The rotating wheels rotate in cooperation with each other through a belt. The grooving motor drives the rotating shaft and the annular blade to rotate at high speed through belt transmission, which can quickly and efficiently cut the corrugated pipe, improve the cutting efficiency, and meet the needs of large-scale production.

[0011] Preferably, the second cylinder, the first cylinder, the first motor, the second motor, and the electric cylinder are all linearly connected to the control box via power lines, and the control box is used to control their start and stop. The control box can accurately control the start and stop time, running speed, stroke, and other parameters of each component, ensuring the accuracy and stability of the cutting process.

[0012] The advantages of this utility model are:

[0013] 1. In the process of corrugated pipe processing, after the corrugated pipe enters the cutting area, a second motor is started according to the set grooving depth. The second motor drives the gear to rotate. Since the gear and rack mesh with each other, the rack slides up and down in the sliding hole. The U-shaped frame fixedly installed at the lower end of the rack moves up and down accordingly, thereby adjusting the cutting depth between the annular blade and the corrugated pipe. If it is necessary to adjust the spacing of the annular blade according to the specifications of the corrugated pipe or the grooving requirements, the electric cylinder is started. The piston rod of the electric cylinder moves back and forth, driving the mounting base to move up and down. The movement of the mounting base causes the connecting rod to change angle, thereby pushing the clamping block at the limit rod. The upward sliding mechanism moves the annular blades within the bottom limiting groove of the clamping block, enabling precise adjustment of the annular blade spacing. This structural design achieves accurate control of the cutting depth and blade spacing, solving the problem that existing corrugated pipe grooving devices often lack precision in adjusting cutting depth and blade spacing, relying on coarse mechanical adjustments that fail to meet the high cutting accuracy requirements of different specifications of corrugated pipes. This results in inconsistent groove depths and widths in the cut corrugated pipes, affecting the assembly accuracy of the corrugated pipe with other components and the overall performance. The design improves cutting quality and product compatibility, while reducing the defect rate and production costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of one side of the corrugated pipe grooving device;

[0016] Figure 2 This is a schematic diagram of the other side of the corrugated pipe grooving device.

[0017] Figure 3 This is a schematic diagram of the bellows feeding mechanism.

[0018] Figure 4 This is a schematic diagram of the bellows grooving mechanism.

[0019] Figure 5 This is a schematic diagram of the tool spacing adjustment mechanism.

[0020] In the diagram: 1. Mounting frame; 2. Roller seat; 3. Support roller; 4. Slide table; 5. Slide seat; 6. First cylinder; 7. Rotating roller; 8. Conveyor belt; 9. First motor; 10. Bracket; 11. Lifting seat; 12. Second cylinder; 13. Fixed frame; 14. Support; 15. Second motor; 16. Gear; 17. Rack; 18. U-shaped frame; 19. Grooving motor; 20. Rotating shaft; 21. Ring blade; 22. Limiting plate; 23. Limiting rod; 24. Clamping block; 25. Electric cylinder; 26. Mounting seat; 27. Connecting rod; 28. Rotating wheel; 29. ​​Pressure roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5As shown, a corrugated pipe grooving device includes a mounting frame 1. Roller seats 2 are fixedly mounted on the upper parts of both ends of the mounting frame 1. Three support rollers 3 are rotatably mounted parallel to each other inside the roller seats 2. Brackets 10 are fixedly mounted on the upper parts of the mounting frame 1 on both sides of the roller seats 2. A lifting seat 11 is provided above the roller seats 2, with both ends fixedly mounted on the brackets 10. A second cylinder 12 is fixedly mounted at the center of the top of each bracket 10. The piston cylinders of the second cylinders 12 are respectively fixedly connected to the upper parts of both ends of the lifting seat 11. A through hole is opened at the center of the top of the lifting seat 11. A fixing frame 13 is fixedly mounted on the outer side of the upper part of the through hole. A sliding hole is opened on one side of the center of the top of the fixing frame 13. A rack 17 is slidably mounted in the sliding hole. A U-shaped frame is fixedly mounted at the lower end of the rack 17. 18. A rotating shaft 20 is rotatably installed inside the lower end of the U-shaped frame 18. A slot is provided on one side of the rotating shaft 20. Annular blades 21 are slidably installed on both ends of the rotating shaft 20. A protrusion is provided on the inner hole of the annular blade 21, and the protrusion is slidably disposed in the slot. A limiting rod 23 is provided above the rotating shaft 20 and fixedly installed inside the U-shaped frame 18. Clamping blocks 24 are slidably installed on both ends of the limiting rod 23. Limiting plates 22 are provided on both sides of the upper end of the clamping blocks 24 and fixedly installed inside the U-shaped frame 18. A limiting groove is provided at the bottom of the clamping blocks 24. The upper part of the annular blade 21 is slidably disposed in the limiting groove of the clamping blocks 24. A connecting rod 27 is rotatably installed inside the top of the clamping blocks 24. Pressure rollers 29 are rotatably installed on both sides of the bottom of the lifting seat 11.During operation, in the corrugated pipe processing, the corrugated pipe is first placed between the rotating roller 7 and the conveyor belt 8 on the slide block 5. The first cylinder 6 is started, and the piston rod of the first cylinder 6 extends and retracts, pushing the slide block 5 to slide on the slide table 4. The distance between the rotating roller 7 and the conveyor belt 8 on both sides of the slide block 5 is adjusted to accommodate corrugated pipes of different diameters, ensuring stable clamping. Then, the first motor 9 is started, driving the rotating roller 7 to rotate, which in turn drives the conveyor belt 8 to run, automatically feeding the corrugated pipe into the cutting area. After the corrugated pipe enters the cutting area, according to the set groove depth, the second motor 15 is started. The second motor 15 drives the gear 16 to rotate. Since the gear 16 meshes with the rack 17, it drives the rack 17 to slide up and down in the sliding hole. The U-shaped frame 18 fixedly installed at the lower end of the rack 17 moves up and down accordingly, thereby adjusting the distance between the annular blade 21 and the corrugated pipe. To adjust the cutting depth, if the spacing of the annular blades 21 needs to be adjusted according to the specifications of the corrugated pipe or the grooving requirements, the electric cylinder 25 is activated. The piston rod of the electric cylinder 25 extends and retracts, causing the mounting base 26 to move up and down. The movement of the mounting base 26 causes the connecting rod 27 to change angle, which in turn pushes the clamping block 24 to slide on the limiting rod 23. The annular blades 21 in the limiting groove at the bottom of the clamping block 24 move accordingly, achieving precise adjustment of the spacing of the annular blades 21. After the above adjustment is completed, the grooving motor 19 is activated. The rotating wheel 28 on the rotating shaft of the grooving motor 19 drives the rotating wheel 28 at one end of the rotating shaft 20 to rotate synchronously via a belt, thereby causing the rotating shaft 20 and the annular blades 21 mounted on the rotating shaft 20 to rotate at high speed. At the same time, the corrugated pipe continues to move under the drive of the feeding system, and the high-speed rotating annular blades 21 perform grooving processing on the corrugated pipe.

[0023] A slide table 4 is fixedly installed in the upper center of the mounting frame 1. Slide seats 5 are slidably installed at both ends of the slide table 4. A first cylinder 6 is fixedly installed on the upper part of both ends of the slide table 4 on the outer side of each slide seat 5. The piston rod of the first cylinder 6 is fixedly connected to the center of the outer side of the slide seat 5. Multiple rotating rollers 7 are rotatably installed in an array inside the slide seat 5. The rotating rollers 7 rotate in cooperation with each other through a conveyor belt 8. A first motor 9 is fixedly installed at the bottom of the same end of each slide seat 5. The rotating shaft of the first motor 9 is fixedly connected to the lower end of the rotating roller 7. During operation, in the process of corrugated pipe processing, the first cylinder 6 is started. The piston rod of the first cylinder 6 extends and retracts to push the slide seat 5 to slide on the slide table 4, thereby adjusting the distance between the rotating rollers 7 and the conveyor belt 8 on both sides of the slide seat 5 to accommodate corrugated pipes of different diameters. The first motor 9 is started. The first motor 9 drives the rotating rollers 7 to rotate, driving the conveyor belt 8 to run and automatically send the corrugated pipe into the cutting area.

[0024] A support 14 is fixedly installed at the top center of the fixed frame 13. A second motor 15 is fixedly installed on one side of the support 14. A gear 16 is provided inside the support 14 and fixedly installed on the rotating shaft of the second motor 15. The teeth of the gear 16 mesh with the tooth grooves of the rack 17. During operation, in the process of bellows processing, the second motor 15 is started, and the second motor 15 drives the gear 16 to rotate. The gear 16 meshes with the rack 17, causing the rack 17 to slide up and down in the sliding hole. The U-shaped frame 18 fixedly installed at the lower end of the rack 17 moves up and down accordingly, thereby adjusting the cutting depth between the annular blade 21 and the bellows.

[0025] An electric cylinder 25 is fixedly installed at the top center of the U-shaped frame 18. A mounting seat 26 is fixedly installed on the piston rod of the electric cylinder 25. The other end of the connecting rod 27 is rotatably installed on both sides of the lower end of the mounting seat 26. During operation, when it is necessary to adjust the spacing of the annular blades 21 according to the specifications of the corrugated pipe or the requirements for grooving during the corrugated pipe processing, the electric cylinder 25 is activated. The piston rod of the electric cylinder 25 moves back and forth, which drives the mounting seat 26 to move up and down. The movement of the mounting seat 26 causes the connecting rod 27 to change angle, which in turn pushes the clamping block 24 to slide on the limiting rod 23. The annular blades 21 in the limiting groove at the bottom of the clamping block 24 move accordingly, thereby achieving precise adjustment of the spacing of the annular blades 21.

[0026] A grooving motor 19 is fixedly installed on the top of one side of the U-shaped frame 18. One end of the rotating shaft 20 passes through the U-shaped frame 18 and rotating wheels 28 are fixedly installed on both the rotating shaft of the grooving motor 19 and the rotating shaft of the grooving motor 19. The rotating wheels 28 rotate with each other through a belt. During operation, when the corrugated pipe is being processed, the grooving motor 19 is started. The rotating wheels 28 on the rotating shaft of the grooving motor 19 drive the rotating wheels 28 at one end of the rotating shaft 20 to rotate synchronously through the belt. This causes the rotating shaft 20 and the annular blade 21 mounted on the rotating shaft 20 to rotate at high speed. At this time, the corrugated pipe continues to move under the drive of the feeding system, and the high-speed rotating annular blade 21 performs grooving processing on the corrugated pipe.

[0027] The second cylinder 12, the first cylinder 6, the first motor 9, the second motor 15, and the electric cylinder 25 are all linearly connected to the control box via power lines, and the control box is used to control their start and stop. During operation, in the process of corrugated pipe processing, the operator only needs to set the corresponding parameters on the control box to realize the automatic control of the entire process, such as automatic feeding of the corrugated pipe, adjustment of cutting depth, adjustment of blade spacing, and grooving, ensuring the accuracy and stability of the cutting process.

[0028] Working principle: During the corrugated pipe processing, the corrugated pipe is first placed between the rotating roller 7 and the conveyor belt 8 on the slide block 5. The first cylinder 6 is activated, and the piston rod of the first cylinder 6 extends and retracts, pushing the slide block 5 to slide on the slide table 4. The distance between the rotating roller 7 and the conveyor belt 8 on both sides of the slide block 5 is adjusted to accommodate corrugated pipes of different diameters, ensuring stable clamping. Then, the first motor 9 is activated, driving the rotating roller 7 to rotate, which in turn drives the conveyor belt 8 to move, automatically feeding the corrugated pipe into the cutting area. After the corrugated pipe enters the cutting area, according to the set groove depth, the second motor 15 is activated. The second motor 15 drives the gear 16 to rotate. Since the gear 16 meshes with the rack 17, it drives the rack 17 to slide up and down in the sliding hole. The U-shaped frame 18 fixedly installed at the lower end of the rack 17 moves up and down accordingly, thereby adjusting the annular blade 21 and the corrugated pipe. To adjust the cutting depth between the ring blades, if the spacing of the annular blades 21 needs to be adjusted according to the specifications of the corrugated pipe or the requirements for grooving, the electric cylinder 25 is started. The piston rod of the electric cylinder 25 moves back and forth, causing the mounting base 26 to move up and down. The movement of the mounting base 26 causes the connecting rod 27 to change angle, which in turn pushes the clamping block 24 to slide on the limiting rod 23. The annular blades 21 in the limiting groove at the bottom of the clamping block 24 move accordingly, thus achieving precise adjustment of the spacing between the annular blades 21. After the above adjustment is completed, the grooving motor 19 is started. The rotating wheel 28 on the rotating shaft of the grooving motor 19 drives the rotating wheel 28 at one end of the rotating shaft 20 to rotate synchronously through the belt, thereby causing the rotating shaft 20 and the annular blades 21 mounted on the rotating shaft 20 to rotate at high speed. At the same time, the corrugated pipe continues to move under the drive of the feeding system, and the high-speed rotating annular blades 21 perform grooving processing on the corrugated pipe.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bellows grooving apparatus, characterized by: The system includes a mounting frame (1), with roller seats (2) fixedly mounted on the upper part of both ends of the mounting frame (1). Three support rollers (3) are rotatably mounted in parallel inside the roller seats (2). Brackets (10) are fixedly mounted on the upper part of the mounting frame (1) on both sides of the roller seats (2). A lifting seat (11) is provided above the roller seats (2), with both ends fixedly mounted on the brackets (10). A second cylinder (12) is fixedly mounted on the center of the top of the brackets (10). The piston cylinders of the second cylinders (12) are respectively fixedly connected to the upper parts of both ends of the lifting seat (11). A through hole is opened in the center of the top of the lifting seat (11). A fixing frame (13) is fixedly mounted on the outer side of the upper part of the through hole. A sliding hole is opened on one side of the center of the top of the fixing frame (13). A rack (17) is slidably mounted in the sliding hole. A U-shaped frame (18) is fixedly mounted on the lower end of the rack (17). A rotating shaft (20) is rotatably installed inside the lower end of the frame (18). A slot is provided on one side of the rotating shaft (20). A ring blade (21) is slidably installed on both ends of the rotating shaft (20). A protrusion is provided on the inner hole of the ring blade (21), and the protrusion is slidably disposed in the slot. A limit rod (23) is provided above the rotating shaft (20) and fixedly installed inside the U-shaped frame (18). A clamping block (24) is slidably installed on both ends of the limit rod (23). Limiting plates (22) are provided on both sides of the upper end of the clamping block (24) and fixedly installed inside the U-shaped frame (18). A limit groove is provided at the bottom of the clamping block (24). The upper part of the ring blade (21) is slidably disposed in the limit groove of the clamping block (24). A connecting rod (27) is rotatably installed inside the top of the clamping block (24). Pressure rollers (29) are rotatably installed on both sides of the bottom of the lifting seat (11).

2. A bellows grooving device according to claim 1, characterized in that: A slide table (4) is fixedly installed in the upper center of the mounting frame (1). Slide seats (5) are slidably installed at both ends of the slide table (4). A first cylinder (6) is fixedly installed on the upper part of both ends of the slide table (4) on the outer side of each slide seat (5). The piston rod of the first cylinder (6) is fixedly connected to the center of the outer side of the slide seat (5). Multiple rotating rollers (7) are rotatably installed in an array inside the slide seat (5). The rotating rollers (7) are rotated in cooperation with each other through a conveyor belt (8). A first motor (9) is fixedly installed at the bottom of the same end of each slide seat (5). The rotating shaft of the first motor (9) is fixedly connected to the lower end of the rotating roller (7).

3. A bellows grooving device according to claim 1, wherein: A support (14) is fixedly installed at the top center of the fixed frame (13). A second motor (15) is fixedly installed on one side of the support (14). A gear (16) is provided inside the support (14) and fixedly installed on the rotating shaft of the second motor (15). The teeth on the gear (16) mesh with the tooth grooves on the rack (17).

4. A bellows grooving device according to claim 1, wherein: An electric cylinder (25) is fixedly installed in the center of the top of the U-shaped frame (18). A mounting base (26) is fixedly installed on the piston rod of the electric cylinder (25). The other end of the connecting rod (27) is rotatably installed on both sides of the lower end of the mounting base (26).

5. The corrugated pipe grooving device according to claim 1, characterized in that: A grooving motor (19) is fixedly installed on the top of one side of the U-shaped frame (18). One end of the rotating shaft (20) passes through the U-shaped frame (18) and rotating wheels (28) are fixedly installed on both the rotating shaft of the grooving motor (19) and the rotating shaft of the grooving motor (19). The rotating wheels (28) rotate in cooperation with each other through a belt.

6. The corrugated pipe grooving device according to claim 1, characterized in that: The second cylinder (12), the first cylinder (6), the first motor (9), the second motor (15) and the electric cylinder (25) are all linearly connected to the control box via power lines, and the control box is used to control their start and stop.

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