Multi-mode sensing electrical cabinet intelligent throttling self-optimization system

Abstract

The invention relates to the technical field of electrical cabinets, and discloses a multi-modal sensing intelligent throttling self-optimization system for an electrical cabinet, which solves the problems that the energy consumption is wasted, the cost is increased and the change of production rhythm cannot be quickly adapted because the throttling self-optimization effect cannot be realized due to the fact that the electrical cabinet does not have the multi-modal sensing capability. The electrical cabinet comprises an electrical cabinet body, a cabinet door is rotatably installed on the front portion of the electrical cabinet body, ventilation frames are fixedly installed on the upper portions of the two sides of the electrical cabinet body, dustproof nets are fixedly installed on the sides, away from each other, of the two ventilation frames, and a temperature sensor and a humidity sensor are fixedly installed in the middles of the inner walls of the two sides of the electrical cabinet body respectively. Electrical equipment is fixedly installed on the inner wall of the rear side of the electrical cabinet body, and an intelligent circuit breaker is fixedly installed on the front portion of the electrical equipment. The electric appliance cabinet has a multi-mode sensing capability, and can effectively realize the throttling self-optimization effect, thereby reducing the energy consumption waste, lowering the cost, and being capable of quickly adapting to the change of the production rhythm.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical cabinets, and specifically relates to an intelligent throttling self-optimization system for an electrical cabinet with multi-modal perception. BACKGROUND

[0002] An electrical cabinet is a metal-enclosed structure device used for centralized installation, protection and control of electrical equipment, and internally integrated with elements such as circuit breakers, contactors, relays, sensors and PLCs, which realizes power distribution and signal interaction through cables or busbars, and is equivalent to the "intelligent control center" of the electrical system. Its core functions include overload short-circuit protection, power distribution, signal monitoring and automatic control, and it is widely used in industrial manufacturing (such as production lines and numerical control machine tools), energy and power (substations and photovoltaic power stations), building facilities (building power distribution and data centers), transportation (rail transit and port equipment) and public infrastructure (sewage treatment and smart streetlights), to ensure the safe and stable operation of the power system and improve the intelligent management level of the equipment.

[0003] The existing patent (publication number: CN113824028B) is an intelligent energy-saving electrical cabinet for electrical energy optimization. In the process of slow heat dissipation, the electrical cabinet can utilize hot air to generate electricity, thereby achieving energy-saving effects. In the process of rapid heat dissipation, the electrical cabinet can achieve rapid cooling effects through the rotation of the heat dissipation fan, thereby minimizing the consumption of electrical energy. The freely movable tooth plate can ensure good dustproof effects, and the sensor can monitor the temperature inside the main body in real time and issue an overheating alarm, thereby ensuring safety. However, the electrical cabinet does not have multi-modal perception capability, which leads to the inability to achieve throttling self-optimization effects, resulting in energy waste and cost increases, and the inability to quickly adapt to changes in production rhythm. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the application provides an intelligent throttling self-optimization system for an electrical cabinet with multi-modal perception, which effectively solves the problem of the existing electrical cabinet not having multi-modal perception capability, leading to the inability to achieve throttling self-optimization effects, resulting in energy waste and cost increases, and the inability to quickly adapt to changes in production rhythm.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a multi-modal sensing intelligent throttling self-optimization system for electrical cabinet, comprising an electrical cabinet body, a cabinet door is rotatably installed at the front of the electrical cabinet body, ventilation frames are fixedly installed at the upper parts of the two sides of the electrical cabinet body, dust screens are fixedly installed at the sides away from each other of the two ventilation frames, temperature sensors and humidity sensors are fixedly installed at the middle parts of the inner walls of the two sides of the electrical cabinet body, an electrical equipment is fixedly installed at the rear inner wall of the electrical cabinet body, an intelligent circuit breaker is fixedly installed at the front of the electrical equipment, a current sensor and a voltage sensor are fixedly installed at the two sides of the lower part of the electrical equipment, and a PLC logic controller is fixedly installed at the middle part of one side of the electrical cabinet body;

[0006] A servo motor is fixedly installed at the middle part of the rear side of the electrical cabinet body through a support frame, a transmission assembly is arranged at the output end of the servo motor, four adjusting plates are rotatably installed in the interiors of the two ventilation frames, mounting plates are fixedly installed at the upper parts of the inner walls of the two sides of the electrical cabinet body, and fans are fixedly installed at the middle parts of the two mounting plates, the transmission assembly is in transmission connection with the eight adjusting plates, and the servo motor outputs power to the eight adjusting plates through the transmission assembly when the servo motor operates, so that the eight adjusting plates rotate to adjust the ventilation volume.

[0007] Preferably, an audio sensor is fixedly installed at the middle part of one side of the electrical cabinet body, an installation slot is formed at the middle part of the top of the electrical cabinet body, a drive motor is fixedly installed in the interior of the installation slot, a turntable is fixedly installed at the output end of the drive motor, a ring groove is formed in the upper inner wall of the installation slot, the turntable is slidingly installed in the interior of the ring groove, a support arm is fixedly installed at the top of the turntable, and a camera is fixedly installed at the lower part of one end of the support arm.

[0008] Preferably, the transmission assembly comprises a driving sprocket, the driving sprocket is fixedly installed at the output end of the servo motor, positioning frames are fixedly installed at the two sides of the upper part of the rear of the electrical cabinet body, driven sprockets are rotatably installed at the lower ends of the two positioning frames, and a chain is in meshing connection between the two driven sprockets and the driving sprocket.

[0009] Preferably, shaft rods are fixedly installed at the sides away from the positioning frames of the driven sprockets, shaft seats are rotatably installed on the surfaces of the shaft rods, the two shaft seats are fixedly connected with the electrical cabinet body, driving bevel gears are fixedly installed at the ends of the shaft rods away from the driven sprockets, and driven bevel gears are in meshing connection with the upper parts of the surfaces of the two driving bevel gears.

[0010] Preferably, threaded rods are fixedly installed at the tops of the driven bevel gears, the threaded rods are rotatably connected with the electrical cabinet body through rotating seats at the tops, threaded sleeves are in threaded connection with the surfaces of the threaded rods, and support rods are fixedly installed at the sides away from the positioning frames of the threaded sleeves.

[0011] Preferably, the threaded sleeve is fixedly installed with a sliding block on the side close to the electrical cabinet body, and the upper surface of the two sides of the electrical cabinet body is provided with a sliding groove, and the two sliding blocks are slidingly installed in the two sliding grooves.

[0012] Preferably, the support rod is fixedly installed with a moving strip at one end, and the inner wall of one side of the two ventilation frames is provided with a strip-shaped groove, and the two moving strips are inserted into the two strip-shaped grooves.

[0013] Preferably, four transmission grooves are vertically and equidistantly provided on one side of the strip-shaped groove, a bolt is inserted into the transmission groove, a connecting head is fixedly installed at one end of the bolt, and one end of the eight connecting heads is fixedly connected with the eight adjusting plates.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] (1) In work, the current sensor and the voltage sensor transmit the monitored current and voltage data to the PLC logic controller, the edge computing unit in the PLC logic controller analyzes the sensing data in real time, identifies energy consumption abnormalities, equipment failure risks or environmental safety hazards, and the PLC logic controller can control the intelligent circuit breaker to automatically adjust the airflow in the electrical cabinet, power distribution or load priority, reduce the fan speed to save energy in low load, or prioritize power supply for critical equipment in high temperature environment; at the same time, the driving motor drives the support arm to rotate through the rotating disc, and the rotating disc rotates along the inside of the circle groove, ensuring the stability of the support arm during rotation, and the support arm drives the camera to identify the appearance abnormalities or operation state of the equipment, combined with the audio sensor to capture abnormal sound, forming a multi-dimensional sensing system, and transmitting the data to the PLC logic controller for identification and processing.

[0016] (2) The temperature sensor and the humidity sensor can monitor the temperature and humidity inside the electrical cabinet body in real time, and transmit the data to the PLC logic controller, when the temperature and humidity are high, the PLC logic controller will start the servo motor to drive the driving sprocket to rotate, the driving sprocket rotates to drive the two driven sprockets to rotate along the two positioning frames, the two driven sprockets rotate to drive the shaft in the shaft seat to rotate, the shaft rotates to drive the driven bevel gear to rotate through the driving bevel gear, the driven bevel gear rotates to drive the threaded rod to rotate along the rotating seat, the threaded rod rotates to drive the threaded sleeve to move down, the threaded sleeve moves down to drive the sliding block to slide along the inside of the sliding groove, increasing the stability of the threaded sleeve during movement.

[0017] When the threaded sleeve moves downward, the moving bars are driven to move downward along the inside of the strip-shaped groove through the support rods, when the two moving bars move downward, the connecting head is driven to rotate through the cooperation of the transmission groove and the latch, when the connecting head rotates, the adjusting plate is driven to rotate to expand the ventilation opening, and at the same time, the heat and humidity in the main body of the electrical cabinet are quickly discharged by accelerating the rotating speed of the two fans, so that the effect of multi-modal sensing intelligent throttling self-optimization is effectively realized; so that the electrical cabinet has multi-modal sensing capability, can effectively realize the effect of throttling self-optimization, thereby reducing energy waste and reducing cost, and can quickly adapt to changes in production rhythm. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, to explain the application, and do not constitute a limitation on the application.

[0019] In the drawings:

[0020] Figure 1 The structure of the multi-modal sensing intelligent throttling self-optimization system of the electrical cabinet of the application Figure 1 ;

[0021] Figure 2 The structure of the multi-modal sensing intelligent throttling self-optimization system of the electrical cabinet of the application Figure 2 ;

[0022] Figure 3 The internal structure of the ventilation frame of the application Figure 1 ;

[0023] Figure 4 The internal structure of the ventilation frame of the application Figure 2 ;

[0024] Figure 5 The internal structure of the ventilation frame of the application Figure 3 ;

[0025] Figure 6 The internal structure of the transmission assembly of the application Figure 4 ;

[0026] Figure 7 The internal structure of the multi-modal sensing intelligent throttling self-optimization system of the electrical cabinet of the application

[0027] Figure 8 The internal structure of the ventilation frame of the application Figure 7 ;

[0028] Figure 9 The internal structure of the ventilation frame of the application Figure 2 ;

[0029] In the figure: 1, the main body of the electrical cabinet; 2, the cabinet door; 3, the ventilation frame; 4, the dust screen; 5, the audio sensor; 6, the camera; 7, the support frame; 8, the servo motor; 9, the adjusting plate; 10, the mounting plate; 11, the fan; 12, the drive motor; 13, the rotating disc; 14, the ring groove; 15, the mounting groove; 16, the support arm; 17, the temperature sensor; 18, the humidity sensor; 19, the electrical equipment; 20, the intelligent circuit breaker; 21, the current sensor; 22, the voltage sensor; 23, the PLC logic controller; 24, the driving sprocket; 25, the positioning frame; 26, the driven sprocket; 27, the chain; 28, the shaft; 29, the shaft seat; 30, the driving bevel gear; 31, the driven bevel gear; 32, the threaded rod; 33, the threaded sleeve; 34, the sliding block; 35, the sliding groove; 36, the rotating seat; 37, the support rod; 38, the moving bar; 39, the bar-shaped groove; 40, the transmission groove; 41, the bolt; 42, the connector. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] Embodiment one, from Figures 1 to 9 It is given that the present application includes an electrical cabinet body 1, the front of the electrical cabinet body 1 is rotatably installed with a cabinet door 2, the upper parts of the two sides of the electrical cabinet body 1 are fixedly installed with ventilation frames 3, the sides away from each other of the two ventilation frames 3 are fixedly installed with dust screens 4, the middle parts of the inner walls of the two sides of the electrical cabinet body 1 are fixedly installed with a temperature sensor 17 and a humidity sensor 18 respectively, the rear inner wall of the electrical cabinet body 1 is fixedly installed with an electrical equipment 19, the front of the electrical equipment 19 is fixedly installed with an intelligent circuit breaker 20, the two sides of the lower part of the electrical equipment 19 are fixedly installed with a current sensor 21 and a voltage sensor 22 respectively, and the middle part of one side of the electrical cabinet body 1 is fixedly installed with a PLC logic controller 23.

[0032] The middle part of the rear side of the electrical cabinet body 1 is fixedly installed with a servo motor 8 through a support frame 7, the output end of the servo motor 8 is provided with a transmission assembly, four adjusting plates 9 are rotatably installed in the interiors of the two ventilation frames 3 respectively, the upper parts of the inner walls of the two sides of the electrical cabinet body 1 are fixedly installed with mounting plates 10, the middle parts of the two mounting plates 10 are fixedly installed with fans 11, the transmission assembly is in transmission connection with the eight adjusting plates 9, and when the servo motor 8 operates, power is output to the eight adjusting plates 9 through the transmission assembly, so that the eight adjusting plates 9 rotate to adjust the ventilation volume.

[0033] In work, the current sensor 21 and the voltage sensor 22 can transmit the monitored current voltage data to the PLC logic controller 23, and the edge computing unit in the PLC logic controller 23 can analyze the sensing data in real time, identify energy consumption anomalies, equipment failure risks or environmental safety hazards, and the PLC logic controller 23 can control the intelligent circuit breaker 20 to automatically adjust the airflow in the electrical cabinet, power distribution or load priority, reduce the speed of the fan 11 to save energy under low load, or prioritize power supply for critical equipment in a high-temperature environment.

[0034] The temperature sensor 17 and the humidity sensor 18 can monitor the temperature and humidity inside the electrical cabinet body 1 in real time and transmit the data to the PLC logic controller 23. When the temperature and humidity are high, the PLC logic controller 23 will start the servo motor 8 to drive the transmission assembly to operate, and when the transmission assembly operates, it will drive the adjusting plate 9 to rotate and expand the air vent. At the same time, the PLC logic controller 23 adjusts the speed of the two fans 11 to quickly discharge the heat and humidity inside the electrical cabinet body 1, thereby effectively realizing the effect of multi-modal sensing intelligent throttling self-optimization. The electrical cabinet has multi-modal sensing capability and can effectively realize the effect of throttling self-optimization, thereby reducing energy waste and reducing costs, and can quickly adapt to changes in production rhythm.

[0035] In example two, on the basis of example one, an audio sensor 5 is fixedly installed on one side of the middle of the electrical cabinet body 1, an installation slot 15 is formed in the middle of the top of the electrical cabinet body 1, a drive motor 12 is fixedly installed inside the installation slot 15, a turntable 13 is fixedly installed on the output end of the drive motor 12, a ring groove 14 is formed in the upper inner wall of the installation slot 15, the turntable 13 is slidingly installed inside the ring groove 14, a support arm 16 is fixedly installed on the top of the turntable 13, and a camera 6 is fixedly installed on the lower part of one end of the support arm 16.

[0036] The drive motor 12 drives the support arm 16 to rotate through the turntable 13, and the turntable 13 rotates along the inside of the ring groove 14 to ensure the stability of the support arm 16 when rotating. The support arm 16 drives the camera 6 to identify equipment appearance abnormalities or operating status when rotating, and combines with the audio sensor 5 to capture abnormal sound to form a multi-dimensional sensing system, and transmits the data to the PLC logic controller 23 for identification and processing.

[0037] In example three, on the basis of example one, the transmission assembly comprises a driving sprocket 24 fixedly installed on the output end of the servo motor 8, positioning frames 25 fixedly installed on both sides of the upper rear part of the electrical cabinet body 1, driven sprockets 26 rotatably installed at the lower ends of the two positioning frames 25, a chain 27 meshingly connected between the two driven sprockets 26 and the driving sprocket 24, shaft rods 28 fixedly installed on the sides of the driven sprockets 26 away from the positioning frames 25, shaft seats 29 rotatably installed on the surfaces of the shaft rods 28, the shaft seats 29 on one side of the two shaft seats 29 fixedly connected with the electrical cabinet body 1, driving bevel gears 30 fixedly installed at the ends of the shaft rods 28 away from the driven sprockets 26, and driven bevel gears 31 meshingly connected with the upper parts of the surfaces of the two driving bevel gears 30.

[0038] The temperature and humidity inside the electrical cabinet body 1 can be monitored in real time by the temperature sensor 17 and the humidity sensor 18, and the data can be transmitted to the PLC logic controller 23. When the temperature and humidity are high, the PLC logic controller 23 will start the servo motor 8 to drive the driving sprocket 24 to rotate. When the driving sprocket 24 rotates, the chain 27 drives the two driven sprockets 26 to rotate along the two positioning frames 25. When the two driven sprockets 26 rotate, the shaft rods 28 rotate in the interiors of the shaft seats 29. When the shaft rods 28 rotate, the driving bevel gears 30 drive the driven bevel gears 31 to rotate.

[0039] The top of the driven bevel gear 31 is fixedly installed with a threaded rod 32, the top of the threaded rod 32 is rotatably connected with the electrical cabinet body 1 through a rotating seat 36, the surface of the threaded rod 32 is threadedly connected with a threaded sleeve 33, and the side of the threaded sleeve 33 away from the positioning frame 25 is fixedly installed with a support rod 37. The side of the threaded sleeve 33 close to the electrical cabinet body 1 is fixedly installed with a sliding block 34, and the surfaces of the upper parts of the two sides of the electrical cabinet body 1 are provided with sliding grooves 35. The two sliding blocks 34 are slidingly installed in the interiors of the two sliding grooves 35.

[0040] When the driven bevel gear 31 rotates, the threaded rod 32 rotates along the rotating seat 36. When the threaded rod 32 rotates, the threaded sleeve 33 moves downward. When the threaded sleeve 33 moves downward, the sliding block 34 slides along the interior of the sliding groove 35, thereby increasing the stability of the movement of the threaded sleeve 33.

[0041] One end of the support rod 37 is fixedly installed with a moving strip 38, and the inner walls of the sides of the two ventilation frames 3 are provided with strip-shaped grooves 39 in which the two moving strips 38 are inserted. Four transmission grooves 40 are vertically and equidistantly provided on one side of each strip-shaped groove 39, a latch 41 is inserted into each transmission groove 40, one end of the latch 41 is fixedly installed with a connecting head 42, and one end of each of the eight connecting heads 42 is fixedly connected with one of the eight adjusting plates 9.

[0042] When the threaded sleeve 33 moves downward, the moving bars 38 are driven to move downward along the inner part of the strip-shaped groove 39 through the support rods 37, when the two moving bars 38 move downward, the connecting heads 42 are driven to rotate through the cooperation of the transmission grooves 40 and the plugs 41, when the connecting heads 42 rotate, the adjusting plates 9 are driven to rotate to expand the air vents.

[0043] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation 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.

[0044] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A multi-modal perception based intelligent throttling self-optimization system for electrical cubicles comprising of an electrical cubicle body (1), characterized in that: The front part of the electrical cabinet body (1) is rotatably installed with a cabinet door (2), the upper parts of the two sides of the electrical cabinet body (1) are fixedly installed with ventilation frames (3), the sides away from each other of the two ventilation frames (3) are fixedly installed with dust screens (4), the middle parts of the inner walls of the two sides of the electrical cabinet body (1) are fixedly installed with temperature sensors (17) and humidity sensors (18) respectively, the rear inner wall of the electrical cabinet body (1) is fixedly installed with electrical equipment (19), the front part of the electrical equipment (19) is fixedly installed with an intelligent circuit breaker (20), the two sides of the lower part of the electrical equipment (19) are fixedly installed with current sensors (21) and voltage sensors (22) respectively, and the middle part of one side of the electrical cabinet body (1) is fixedly installed with a PLC logic controller (23). The middle part of the rear side of the electrical cabinet body (1) is fixedly installed with a servo motor (8) through a support frame (7), the output end of the servo motor (8) is provided with a transmission assembly, four adjusting plates (9) are rotatably installed in the interiors of the two ventilation frames (3) respectively, the upper parts of the inner walls of the two sides of the electrical cabinet body (1) are fixedly installed with mounting plates (10), the middle parts of the two mounting plates (10) are fixedly installed with fans (11), the transmission assembly is in transmission connection with the eight adjusting plates (9), and when the servo motor (8) operates, power is output to the eight adjusting plates (9) through the transmission assembly, so that the eight adjusting plates (9) rotate to adjust the ventilation volume.

2. The multi-modal sensory based electrical cubicle intelligent throttling self-optimization system as claimed in claim 1, wherein: The middle part of one side of the electrical cabinet body (1) is fixedly installed with an audio frequency sensor (5), the middle part of the top of the electrical cabinet body (1) is provided with a mounting groove (15), the interior of the mounting groove (15) is fixedly installed with a driving motor (12), the output end of the driving motor (12) is fixedly installed with a rotating disc (13), the upper inner wall of the mounting groove (15) is provided with a ring groove (14), the rotating disc (13) is slidingly installed in the interior of the ring groove (14), the top of the rotating disc (13) is fixedly installed with a support arm (16), and the lower part of one end of the support arm (16) is fixedly installed with a camera (6).

3. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 1, wherein: The transmission assembly comprises a driving sprocket (24), the driving sprocket (24) is fixedly installed at the output end of the servo motor (8), the upper parts of the two sides of the rear part of the electrical cabinet body (1) are fixedly installed with positioning frames (25), the lower end parts of the two positioning frames (25) are rotatably installed with driven sprockets (26), and the chain (27) is in meshing connection between the two driven sprockets (26) and the driving sprocket (24).

4. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 3, wherein: The sides away from the positioning frames (25) of the driven sprockets (26) are fixedly installed with shaft rods (28), the surfaces of the shaft rods (28) are rotatably installed with shaft seats (29), the sides of the two shaft seats (29) are fixedly connected with the electrical cabinet body (1), one end of the shaft rod (28) away from the driven sprocket (26) is fixedly installed with a driving bevel gear (30), and the upper parts of the surfaces of the two driving bevel gears (30) are in meshing connection with driven bevel gears (31).

5. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 4, wherein: The top of the driven bevel gear (31) is fixedly installed with a threaded rod (32), the top of the threaded rod (32) is rotatably connected with the electrical cabinet body (1) through a rotating seat (36), the surface of the threaded rod (32) is threadedly connected with a threaded sleeve (33), and the side, away from the positioning frame (25), of the threaded sleeve (33) is fixedly installed with a supporting rod (37).

6. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 5, wherein: The side, close to the electrical cabinet body (1), of the threaded sleeve (33) is fixedly installed with a sliding block (34), and the surfaces of the upper parts of the two sides of the electrical cabinet body (1) are both provided with a sliding groove (35); the two sliding blocks (34) are slidingly installed in the two sliding grooves (35).

7. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 5, wherein: One end of the supporting rod (37) is fixedly installed with a moving strip (38), and the inner walls of the two sides of the two ventilation frames (3) are both provided with a strip-shaped groove (39); the two moving strips (38) are inserted into the two strip-shaped grooves (39).

8. The multi-modal sensory electrical cubicle intelligent throttling self-optimization system of claim 7, wherein: The side of the strip-shaped groove (39) is vertically and equidistantly provided with four transmission grooves (40), the inside of the transmission groove (40) is inserted with a bolt (41), one end of the bolt (41) is fixedly installed with a connecting head (42), and one end of the eight connecting heads (42) is fixedly connected with the eight adjusting plates (9).

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