An efficient electrostatic precipitator for power plants

Abstract

The present invention discloses an efficient electrostatic precipitator for power plants, which relates to the field of power plants and includes a dust collector main body. An exhaust pipe is installed at the top of the dust collector main body, and an activated carbon layer is installed inside the exhaust pipe. In the present invention, by providing a dust cleaning component, when it is necessary to discharge dust from the discharge pipe, the user can start the motor. When the motor works, the lead screw rotates, thereby driving the threaded sleeve to move, and then driving the dust cleaning plate to move. The dust cleaning plate will scrape off the dust attached to the first filter screen, preventing the dust from clogging the first filter screen. The dust will fall onto the dust guiding table. When the lead screw rotates, it will drive the driving bevel gear to rotate. The rotation of the driving bevel gear will drive the driven bevel gear to rotate, and then the connecting shaft can be driven to rotate, and then the driving pulley is driven to rotate. The driving pulley drives the driven pulley to rotate through the transmission belt, and then the rotating shaft is driven to rotate. The rotating shaft drives the dust cleaning frame to rotate, so as to clean the dust attached to the inner wall of the dust guiding table.

Description

Technical Field

[0001] The present invention relates to the field of power plants, and specifically to an efficient electrostatic precipitator for power plants. Background Art

[0002] A power plant refers to a power plant that converts a certain form of primary energy into electrical energy for use in fixed facilities or transportation, such as thermal power plants, hydropower plants, steam power plants, diesel power plants, or nuclear power plants. Since most of the equipment in power plants is relatively precise and suitable for operating in a dust-free environment, dust collectors are usually installed in power plant equipment rooms to remove dust in the air.

[0003] According to the Chinese patent with the publication number CN212548856U, a power plant dust collector is disclosed. The present invention increases the convenience of replacing the dust collection box. After installing the dust collection box, under the action of the elastic member, the hook and the clamping block can be stably fitted together, increasing the stability of the present invention; since the dust in the gas will fall to the lower part inside the dust collector after being filtered, and this part of the dust is difficult to be cleaned, and it is difficult for the dust to enter the discharge pipe, resulting in this part of the dust not being collected by the collection bag, so that the dust always adheres to the inside of the dust collector, thereby reducing the dust discharge efficiency; at the same time, most dust collectors are provided with filter screens to filter the dust in the gas, but after the filter screens are filtered for a long time, a large amount of dust will adhere to the filter surface, and this part of the dust is difficult to be cleaned in time and always adheres to the filter screen, which will cause the filter screen to be blocked, affect the filtering efficiency of the filter screen and reduce the gas flow rate. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide an efficient electrostatic precipitator for power plants to solve the technical problems that part of the dust always accumulates in the lower part inside the dust collector and it is inconvenient to clean the dust on the surface of the filter screen in time.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An efficient electrostatic precipitator for power plants, including a dust collector main body, an exhaust pipe is installed at the top of the dust collector main body, an activated carbon layer is installed inside the exhaust pipe, a dust guiding platform is fixed at the lower part inside the dust collector main body, an air inlet pipe is connected to the lower side of one side of the dust collector main body, mounting plates are fixed on both sides inside the dust collector main body, a second filter screen is installed between the two mounting plates, a dust cleaning component and an anti-blocking component are respectively arranged inside the dust collector main body, and a sealing door is installed on the outer surface of the dust collector main body.

[0006] By adopting the above technical solution, the filtered gas will be adsorbed and purified by the activated carbon layer and then discharged through the exhaust pipe. At the same time, the second filter screen can filter the air again, and the setting of the sealing door is convenient for improving the sealing performance of the dust collector main body.

[0007] Further, the dust cleaning assembly includes a motor installed on one side of the dust collector main body, a limiting rod, a first fixing plate and a second fixing plate fixed inside the dust collector main body. The bottom of the second fixing plate is connected to a rotating shaft through a bearing. The bottom end of the rotating shaft is connected to a dust cleaning frame. A driven pulley is sleeved on the outer wall of the rotating shaft. The output end of the motor is connected to a lead screw extending into the dust collector main body. A threaded sleeve is sleeved on the outer wall of the lead screw. A dust cleaning plate is fixed on the top of the threaded sleeve. A driving bevel gear is installed on one side of the outer surface of the lead screw. The top and bottom of the first fixing plate are connected to a connecting shaft through bearings. A driving pulley is installed at the bottom end of the connecting shaft. A transmission belt is sleeved between the driving pulley and the driven pulley. A driven bevel gear is installed at the top end of the connecting shaft.

[0008] By adopting the above technical solution, when it is necessary to discharge the dust from the discharge pipe, the user can start the motor. The motor drives the lead screw to rotate, which in turn drives the threaded sleeve to move, and then drives the dust cleaning plate to move. The dust cleaning plate will scrape off the dust attached to the first filter screen, and the dust will fall onto the dust guiding table and be discharged through the discharge pipe.

[0009] Further, the driving bevel gear is meshed with the driven bevel gear. The dust cleaning frame is located inside the dust guiding table, and both sides of the dust cleaning frame are in contact with the inner wall of the dust guiding table.

[0010] By adopting the above technical solution, the rotation of the driving bevel gear will drive the rotation of the driven bevel gear, which in turn can drive the rotation of the connecting shaft, and then drive the rotation of the driving pulley. At the same time, the dust cleaning frame will clean the dust attached to the inner wall of the dust guiding table.

[0011] Further, the anti-blocking assembly includes a driving motor installed on the outer surface of the dust collector main body and sliding grooves opened on both sides inside the dust collector main body. A spring is fixed below the inside of the sliding groove. A sliding plate is arranged inside the sliding groove. A first filter screen is connected between the two sliding plates. The output end of the driving motor is connected to a driving shaft extending into the dust collector main body. A plurality of rotating plates are fixed on the outer wall of the driving shaft.

[0012] By adopting the above technical solution, when filtering the dust in the gas, the user can start the driving motor. The driving motor drives the rotating plates to rotate. After the rotating plates rotate, they can clean the dust on the second filter screen. At the same time, when the rotating plates rotate to contact the first filter screen, as the rotating plates continue to rotate, they will push the first filter screen downward. The first filter screen drives the sliding plate to move downward and compress the spring, causing the spring to be compressed under force. When the rotating plates continue to rotate and no longer contact the first filter screen, the spring resumes its elastic stretching and then pushes the first filter screen upward. In this way, the first filter screen can vibrate reciprocally, thereby preventing dust from accumulating on the first filter screen and causing blockage.

[0013] Further, the top of one of the rotating plates is in contact with the second filter screen. The second filter screen is semicircular. The first filter screen is slidably connected to the sliding groove through a sliding plate, and the bottom of the sliding plate is in contact with the top end of the spring.

[0014] By adopting the above technical solution, when the rotating plate rotates, it will clean the dust attached to the second filter screen to prevent the second filter screen from being blocked. At the same time, when the first filter screen moves, it will drive the sliding plate to move, causing the sliding plate to slide inside the sliding groove.

[0015] Further, the limiting rod passes through the threaded sleeve. One end of the screw rod is connected to the inner wall of the dust collector body through a bearing. The top of the dust cleaning plate is in contact with the bottom of the first filter screen, and the length of the dust cleaning plate is the same as the width of the first filter screen.

[0016] By adopting the above technical solution, the limiting rod can limit the threaded sleeve to prevent the threaded sleeve from rotating randomly. At the same time, when the dust cleaning plate moves, it will clean the dust attached to the bottom of the first filter screen to avoid a large amount of dust adhering to the bottom of the first filter screen.

[0017] Further, the second filter screen is located directly above the first filter screen, and the pore diameter of the second filter screen is smaller than that of the first filter screen.

[0018] By adopting the above technical solution, the first filter screen can preliminarily filter the dust in the air, and the second filter screen can filter the dust in the air again, thereby improving the dust removal effect.

[0019] Further, a handle is installed on one side of the outer surface of the sealing door. A discharge pipe is connected to the middle position at the bottom of the dust collector body, and a discharge valve is installed on the outer surface of the discharge pipe.

[0020] By adopting the above technical solution, the user can open or close the sealing door through the handle. At the same time, the dust can be discharged through the discharge pipe. When the discharge valve is closed, the dust or air inside the dust collector body will not be discharged through the discharge pipe.

[0021] Further, an operation panel is installed above one side of the dust collector body. Brackets are installed around the bottom of the dust collector body, and the operation panel is electrically connected to the motor and the driving motor respectively.

[0022] By adopting the above technical solution, the user can open or close the motor and the driving motor through the operation panel. The brackets can support the dust collector body, thereby improving the stability of the dust collector body.

[0023] In summary, the present invention mainly has the following beneficial effects:

[0024] 1. In the present invention, a dust cleaning component is provided. When it is necessary to discharge dust from the discharge pipe, the user can start the motor. The motor drives the lead screw to rotate, which in turn drives the threaded sleeve to move, and then drives the dust cleaning plate to move. The dust cleaning plate will scrape off the dust attached to the first filter screen, preventing the dust from blocking the first filter screen. The dust will fall onto the dust guide table. When the lead screw rotates, it will drive the driving bevel gear to rotate. The rotation of the driving bevel gear will drive the driven bevel gear to rotate, which can then drive the connecting shaft to rotate, and then drive the driving pulley to rotate. The driving pulley drives the driven pulley to rotate through the transmission belt, and then drives the rotating shaft to rotate. The rotating shaft drives the dust cleaning frame to rotate, so as to clean the dust attached to the inner wall of the dust guide table, making the dust fall into the discharge pipe and be discharged through it. This improves the discharge efficiency of the dust and the cleaning efficiency of the dust, preventing some dust from always accumulating under the interior of the dust collector main body and being difficult to clean up;

[0025] 2. In the present invention, a anti-blocking component is provided. When filtering the dust in the gas, the user can start the driving motor. The driving motor drives the rotating plate to rotate. After the rotating plate rotates, it can clean the dust on the second filter screen, preventing the dust from blocking the second filter screen. At the same time, when the rotating plate rotates to contact the first filter screen, as the rotating plate continues to rotate, it will push the first filter screen downward. The first filter screen drives the sliding plate to move downward and compress the spring, causing the spring to be compressed under force. When the rotating plate continues to rotate and no longer contacts the first filter screen, the spring resumes its elastic stretching and then pushes the first filter screen upward. Repeating like this can make the first filter screen vibrate, thereby preventing dust from accumulating on the first filter screen and causing blockage. This improves the subsequent air circulation efficiency, and enables the first filter screen and the second filter screen to continuously filter the air, thus improving the use effect of the first filter screen and the second filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0027] Figure 2 is the overall front cross-sectional structure schematic diagram of the present invention;

[0028] Figure 3 is the three-dimensional partial structure schematic diagram of the dust cleaning plate of the present invention;

[0029] Figure 4 is the three-dimensional partial structure schematic diagram of the dust guide table of the present invention;

[0030] Figure 5 is the Figure 2 enlarged view of part A in the present invention;

[0031] Figure 6 is the Figure 2 enlarged view of part B in the present invention.

[0032] In the figure: 1. Dust collector main body; 2. Discharge pipe; 3. Exhaust pipe; 4. Activated carbon layer; 5. Dust guide table; 6. Inlet pipe; 7. Sealing door; 8. Dust cleaning assembly; 801. Motor; 802. Lead screw; 803. Limit rod; 804. Dust cleaning plate; 805. Threaded sleeve; 806. Active bevel gear; 807. Driven bevel gear; 808. First fixing plate; 809. Connecting shaft; 810. Active pulley; 811. Transmission belt; 812. Second fixing plate; 813. Rotating shaft; 814. Driven pulley; 815. Dust cleaning frame; 9. Anti-blocking assembly; 901. Driving motor; 902. Rotating plate; 903. Driving shaft; 904. Chute; 905. Slide plate; 906. Spring; 10. First filter screen; 11. Operation panel; 12. Mounting plate; 13. Second filter screen. Detailed implementation mode

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and cannot be understood as a limitation of the present invention.

[0034] The embodiments of the present invention will be described below according to its overall structure.

[0035] An efficient electrostatic precipitator for power plants, such as Figure 1 、 Figure 2 and Figure 4As shown in the figure, it includes a dust collector main body 1. An exhaust pipe 3 is installed at the top of the dust collector main body 1. An activated carbon layer 4 is installed inside the exhaust pipe 3. The filtered gas will be adsorbed and purified by the activated carbon layer 4 and then discharged through the exhaust pipe 3. A dust guide table 5 is fixed below the interior of the dust collector main body 1. An air inlet pipe 6 is connected to the lower side of one side of the dust collector main body 1. Installation plates 12 are fixed on both sides inside the dust collector main body 1. A second filter screen 13 is installed between the two installation plates 12. The second filter screen 13 is located directly above the first filter screen 10. The pore diameter of the second filter screen 13 is smaller than that of the first filter screen 10. The first filter screen 10 can preliminarily filter the dust in the air, while the second filter screen 13 can filter the dust in the air again, thereby improving the dust removal effect. A dust cleaning component 8 and an anti-blocking component 9 are respectively arranged inside the dust collector main body 1. A sealing door 7 is installed on the outer surface of the dust collector main body 1. A handle is installed on one side of the outer surface of the sealing door 7. The user can open or close the sealing door 7 through the handle. A discharge pipe 2 is connected to the middle position at the bottom of the dust collector main body 1. A discharge valve is installed on the outer surface of the discharge pipe 2. At the same time, the dust can be discharged through the discharge pipe 2. When the discharge valve is closed, the dust or air inside the dust collector main body 1 will not be discharged through the discharge pipe 2. An operation panel 11 is installed above one side of the dust collector main body 1. Brackets are installed around the bottom of the dust collector main body 1. The operation panel 11 is electrically connected to the motor 801 and the driving motor 901 respectively. The user can open or close the motor 801 and the driving motor 901 through the operation panel 11. The brackets can support the dust collector main body 1, thereby improving the stability of the dust collector main body 1.

[0036] Refer to Figure 2 , Figure 3 , Figure 5 and Figure 6, the dust cleaning component 8 includes a motor 801 installed on one side of the dust collector main body 1, a limiting rod 803 fixed inside the dust collector main body 1, a first fixing plate 808 and a second fixing plate 812. The bottom of the second fixing plate 812 is connected to a rotating shaft 813 through a bearing. The bottom end of the rotating shaft 813 is connected to a dust cleaning frame 815. A driven pulley 814 is sleeved on the outer wall of the rotating shaft 813. The output end of the motor 801 is connected to a lead screw 802 extending into the dust collector main body 1. A threaded sleeve 805 is sleeved on the outer wall of the lead screw 802. A dust cleaning plate 804 is fixed to the top of the threaded sleeve 805. When it is necessary to discharge dust from the discharge pipe 2, the user can start the motor 801. The motor 801 drives the lead screw 802 to rotate, thereby driving the threaded sleeve 805 to move, and then driving the dust cleaning plate 804 to move. The dust cleaning plate 804 will scrape off the dust attached to the first filter screen 10, and the dust will fall onto the dust guiding table 5 and be discharged through the discharge pipe 2. The limiting rod 803 passes through the threaded sleeve 805. One end of the lead screw 802 is connected to the inner wall of the dust collector main body 1 through a bearing. The top of the dust cleaning plate 804 is in contact with the bottom of the first filter screen 10. The length of the dust cleaning plate 804 is the same as the width of the first filter screen 10. The limiting rod 803 can limit the threaded sleeve 805 to prevent the threaded sleeve 805 from rotating randomly. A driving bevel gear 806 is installed on one side of the outer surface of the lead screw 802. The top and bottom of the first fixing plate 808 are connected to a connecting shaft 809 through bearings. A driving pulley 810 is installed at the bottom end of the connecting shaft 809. A transmission belt 811 is sleeved between the driving pulley 810 and the driven pulley 814. A driven bevel gear 807 is installed at the top end of the connecting shaft 809. The driving bevel gear 806 meshes with the driven bevel gear 807. The dust cleaning frame 815 is located inside the dust guiding table 5. The rotation of the driving bevel gear 806 will drive the rotation of the driven bevel gear 807, and then drive the connecting shaft 809 to rotate. Both sides of the dust cleaning frame 815 are in contact with the inner wall of the dust guiding table 5.

[0037] Refer to Figure 1 and Figure 2, the anti-clogging component 9 includes a driving motor 901 installed on the outer surface of the dust collector main body 1 and sliding grooves 904 opened on both sides inside the dust collector main body 1. A spring 906 is fixed below the inside of the sliding groove 904. A sliding plate 905 is arranged inside the sliding groove 904. A first filter screen 10 is connected between the two sliding plates 905. The output end of the driving motor 901 is connected with a driving shaft 903 extending into the dust collector main body 1. When filtering the dust in the gas, the user can start the driving motor 901. When the driving motor 901 works, it can drive the rotating plate 902 to rotate. After the rotating plate 902 rotates, it can clean the dust on the second filter screen 13. At the same time, when the rotating plate 902 rotates to contact the first filter screen 10, as the rotating plate 902 continues to rotate, it will push the first filter screen 10 downward. The first filter screen 10 will drive the sliding plate 905 to move downward and compress the spring 906, so that the spring 906 is compressed by force. When the rotating plate 902 continues to rotate and no longer contacts the first filter screen 10, the spring 906 resumes elastic stretching and then pushes the first filter screen 10 upward. Repeating like this can make the first filter screen 10 vibrate, thereby preventing dust from accumulating on the first filter screen 10 and causing blockage. A plurality of rotating plates 902 are fixed on the outer wall of the driving shaft 903. The top of one rotating plate 902 contacts the second filter screen 13. The second filter screen 13 is semicircular. The first filter screen 10 is slidably connected with the sliding groove 904 through the sliding plate 905. The bottom of the sliding plate 905 contacts the top end of the spring 906. When the rotating plate 902 rotates, it will clean the dust attached to the second filter screen 13 and prevent the second filter screen 13 from being blocked.

[0038] The implementation principle of this embodiment is as follows: First, the user installs and powers on the dust collector. The gas enters the interior of the dust collector main body 1 through the intake pipe 6 and is preliminarily filtered by the first filter screen 10. The filtered gas continues to flow upward and is filtered by the second filter screen 13. After being filtered by the second filter screen 13 again, the gas enters the exhaust pipe 3 and is discharged after being adsorbed and purified by the activated carbon layer 4. During the process of filtering the gas, the user can start the drive motor 901. When the drive motor 901 works, it drives the rotating plate 902 to rotate. After the rotating plate 902 rotates, it can clean the dust on the second filter screen 13 to prevent the dust from clogging the second filter screen 13. At the same time, when the rotating plate 902 rotates to contact the first filter screen 10, as the rotating plate 902 continues to rotate, it will push the first filter screen 10 downward. The first filter screen 10 drives the sliding plate 905 to move downward and compress the spring 906, causing the spring 906 to be compressed under force. When the rotating plate 902 continues to rotate and no longer contacts the first filter screen 10, the spring 906 resumes its elastic stretching and then pushes the first filter screen 10 upward. Repeating this process can vibrate the first filter screen 10, thereby preventing dust from accumulating on the first filter screen 10 and causing blockage. When it is necessary to discharge the dust from the discharge pipe 2, the user can open the discharge valve and start the motor 801. When the motor 801 works, it drives the lead screw 802 to rotate, which in turn drives the threaded sleeve 805 to move, and then drives the dust cleaning plate 804 to move. The dust cleaning plate 804 will scrape off the dust attached to the first filter screen 10, and the dust will fall onto the dust guiding table 5. When the lead screw 802 rotates, it drives the driving bevel gear 806 to rotate. The rotation of the driving bevel gear 806 drives the driven bevel gear 807 to rotate, which in turn drives the connecting shaft 809 to rotate, then drives the driving pulley 810 to rotate, and drives the driven pulley 814 to rotate through the transmission belt 811, and then drives the rotating shaft 813 to rotate. The rotating shaft 813 drives the dust cleaning frame 815 to rotate, so that the dust cleaning frame 815 can clean the dust attached to the inner wall of the dust guiding table 5, causing the dust to fall into the discharge pipe 2 and be discharged through it.

[0039] Although the embodiments of the present invention have been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An efficient electrostatic precipitator for power plants, comprising a precipitator main body (1), characterized in that: An exhaust pipe (3) is installed at the top of the dust collector main body (1), an activated carbon layer (4) is installed inside the exhaust pipe (3), a dust guiding table (5) is fixed below the interior of the dust collector main body (1), an air inlet pipe (6) is connected to the lower side of one side of the dust collector main body (1), mounting plates (12) are fixed on both sides inside the dust collector main body (1), a second filter screen (13) is installed between the two mounting plates (12), a dust cleaning component (8) and an anti-blocking component (9) are respectively arranged inside the dust collector main body (1), the anti-blocking component (9) includes a driving motor (901) installed on the outer surface of the dust collector main body (1) and sliding grooves (904) opened on both sides inside the dust collector main body (1), a spring (906) is fixed below the interior of the sliding grooves (904), a sliding plate (905) is arranged inside the sliding grooves (904), a first filter screen (10) is connected between the two sliding plates (905), an output end of the driving motor (901) is connected to a driving shaft (903) extending into the dust collector main body (1), a plurality of rotating plates (902) are fixed on the outer wall of the driving shaft (903), a top of one rotating plate (902) is in contact with the second filter screen (13), the second filter screen (13) is semicircular, the first filter screen (10) is slidably connected to the sliding grooves (904) through the sliding plates (905), a bottom of the sliding plate (905) is in contact with a top end of the spring (906), the dust cleaning component (8) includes a dust cleaning plate (804), and the dust cleaning plate (804) scrapes off the dust attached to the first filter screen (10). A sealing door (7) is installed on the outer surface of the dust collector main body (1).

2. The efficient electrostatic precipitator for power plants according to claim 1, characterized in that: The dust cleaning component (8) includes a motor (801) installed on one side of the dust collector main body (1), a limiting rod (803), a first fixing plate (808) and a second fixing plate (812) fixed inside the dust collector main body (1), a rotating shaft (813) is connected to the bottom of the second fixing plate (812) through a bearing, a dust cleaning frame (815) is connected to the bottom end of the rotating shaft (813), a driven belt pulley (814) is sleeved on the outer wall of the rotating shaft (813), an output end of the motor (801) is connected to a lead screw (802) extending into the dust collector main body (1), a threaded sleeve (805) is sleeved on the outer wall of the lead screw (802), a dust cleaning plate (804) is fixed on the top of the threaded sleeve (805), a driving bevel gear (806) is installed on one side of the outer surface of the lead screw (802), a connecting shaft (809) is connected to the top and bottom of the first fixing plate (808) through bearings, a driving belt pulley (810) is installed at the bottom end of the connecting shaft (809), a transmission belt (811) is sleeved between the driving belt pulley (810) and the driven belt pulley (814), and a driven bevel gear (807) is installed at the top end of the connecting shaft (809).

3. The efficient electrostatic precipitator for power plants according to claim 2, characterized in that: The driving bevel gear (806) meshes with the driven bevel gear (807), and the dust cleaning frame (815) is located inside the dust guide table (5), and both sides of the dust cleaning frame (815) are in contact with the inner wall of the dust guide table (5).

4. The efficient electrostatic precipitator for power plants according to claim 2, characterized in that: The limiting rod (803) penetrates through the threaded sleeve (805), one end of the lead screw (802) is connected to the inner wall of the dust collector main body (1) through a bearing, the top of the dust cleaning plate (804) is in contact with the bottom of the first filter screen (10), the length of the dust cleaning plate (804) is the same as the width of the first filter screen (10), the second filter screen (13) is located directly above the first filter screen (10), and the pore diameter of the second filter screen (13) is smaller than the pore diameter of the first filter screen (10).

5. The efficient electrostatic precipitator for power plants according to claim 1, characterized in that: A handle is installed on one side of the outer surface of the sealing door (7), a discharge pipe (2) is connected to the middle position at the bottom of the dust collector main body (1), a discharge valve is installed on the outer surface of the discharge pipe (2), an operation panel (11) is installed above one side of the dust collector main body (1), brackets are installed around the bottom of the dust collector main body (1), and the operation panel (11) is electrically connected to the motor (801) and the driving motor (901) respectively.

Images