Negative-pressure electrostatic dust collection device for finished intake manifold

Abstract

The invention discloses an intake manifold finished product negative pressure electrostatic dust collection device, and relates to the field of intake manifold dust collection devices, the intake manifold finished product negative pressure electrostatic dust collection device comprises a cathode bar, the surface of the cathode bar is provided with a plurality of spikes, the cathode bar is a conductor, the surface of the cathode bar is sleeved with a ventilation guide pipe, and the cathode bar penetrates through a pipeline of the whole intake manifold. According to the negative-pressure electrostatic dust collection device for the finished intake manifold, the ventilation guide pipe and the negative-pressure air pipe are arranged, so that gas in the intake manifold flows, a cathode bar starts point discharge of the surface of the intake manifold, the gas drives dust to enter the ventilation guide pipe through ventilation holes, and the dust can rapidly approach the point and carry electrons; according to the principle of induced electrification, due to the fact that electrons are emitted from the tip position of the cathode bar, positive charges are enriched in the corresponding position of the inner side of the ventilation guide pipe, dust with the electrons is attracted, and the dust can be attached to the interior of the ventilation guide pipe or enter the interior of the negative pressure air pipe along with airflow.

Description

Technical Field

[0001] The invention relates to the field of intake manifold dust removal devices, and in particular to a finished product negative pressure electrostatic dust removal device for an intake manifold. Background Art

[0002] The intake manifold is an important part of the engine. Its main function is to distribute air, fuel mixture or clean air to each cylinder. In order to reduce gas flow resistance and improve intake capacity, the inner wall of the intake manifold should be kept smooth. However, during the production process of the intake manifold, dust and impurities may adhere to the surface or inside of the intake manifold, affecting its sealing and airtightness, and thus affecting the performance of the engine. Cleaning the finished intake manifold can reduce the failure rate in the production process, improve production efficiency and product quality. There are many ways to remove dust from the intake manifold.

[0003] The Chinese patent with patent number CN 201820844528.0 discloses a cyclone furnace rotary plate electric field electrostatic dust removal device, which sets an electrostatic dust removal chamber inside two purification chambers, blows dust-laden gas into the purification chamber, and the cathode device makes the dust in the air carry electrons, and uses the attraction of positive charge to electrons to adsorb the dust inside the dust removal pipe, thereby achieving a better dust removal effect. The Chinese patent with patent number CN 201822032889.8 discloses an intake manifold dust removal device, which uses the kinetic energy of high-pressure gas to accelerate ions, and rotates into the rotating shaft to fully mix the ions, so that the ions change according to the size of the airflow.

[0004] Both of the above patents use air to carry away the dust to the area where electrons are generated, and then remove the dust by adsorbing the electrons with positive charges. However, inside the intake manifold, there is a curved area between the main pipe and the side pipe. Therefore, it is difficult to carry away the dust as much as possible by blowing air, and the dust needs to pass through the interior of the entire intake manifold. It may be repeatedly adsorbed inside the intake manifold during the movement, which requires a longer dust removal time. The Chinese patent with patent number CN201822032889.8 also requires a plug to seal the different pipe openings of the intake manifold, and it is also very complicated to use. Summary of the invention

[0005] The main purpose of the present invention is to provide a finished negative pressure electrostatic dust removal device for an intake manifold, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a finished negative pressure electrostatic dust removal device for an intake manifold, comprising a cathode rod with a plurality of spikes on the surface, the cathode rod being a conductor, a ventilation duct being sleeved on the surface of the cathode rod, the cathode rod passing through the entire intake manifold pipeline, the ventilation duct being a conductor, a plurality of ventilation holes being opened on the surface of the ventilation duct, a gap being set between the cathode rod and the inner wall of the ventilation duct, a negative pressure air duct being installed at one end of the ventilation duct, and the cathode rod being arranged inside the ventilation duct through an installation assembly.

[0007] The mounting assembly includes a circular sealing plate, which is a non-conductor and is fixed to one end of a cathode rod. The side of the sealing plate abuts against the inner wall of the ventilation duct. A plurality of annular connecting rods are fixedly mounted on the end of the cathode rod away from the sealing plate. The connecting rods are non-conductors and abut against the inside of the ventilation duct.

[0008] An annular groove is provided on the inner side of one end of the ventilation duct, a connecting ring is movably installed inside the annular groove, one end of a plurality of connecting rods is fixed on the inner side of the connecting ring, the depth of the annular groove is the same as the thickness of the connecting ring, the connecting ring is a non-conductor, and the connecting rod and the connecting ring are an integrally formed structure.

[0009] An end of the ventilation duct away from the sealing plate is fixedly connected with an external threaded tube, the external threaded tube and the ventilation duct are an integrally formed structure, the surface of the external threaded tube is threadedly sleeved with an internal threaded sleeve, and the negative pressure air duct is connected to the internal threaded sleeve.

[0010] The axial path shapes of the cathode rod and the ventilation duct are respectively set to be straight and arc shapes. The straight cathode rod and the ventilation duct are used in the main duct of the intake manifold, and the arc-shaped cathode rod and the ventilation duct are used in the side duct of the intake manifold.

[0011] The arc-shaped ventilation conduit is tangentially fixed to the corresponding internal threaded sleeve.

[0012] It also includes a workbench for operation, the straight cathode rod and the ventilation duct are fixed on the surface of the workbench, a movable placement rack is installed on the surface of the workbench, the placement rack is used to place the intake manifold, the arc-shaped cathode rod and the ventilation duct are movably installed above the workbench, and a rotating component is arranged inside the workbench to make the arc-shaped cathode rod and the ventilation duct move along their own arc path.

[0013] A cavity is arranged inside the workbench, one or more groups of the arc-shaped cathode rod and ventilation duct are arranged, the rotating assembly includes a rotating rod, the rotating rod is movably installed inside the workbench, a motor is fixed on the surface of the workbench, the motor drives the rotation of the rotating rod, a through groove is arranged on the surface of the workbench, an arc rod is fixedly installed on one end of the internal threaded sleeve, the arc rod is concentric with the arc-shaped cathode rod, the internal threaded sleeve is tangentially connected to the arc rod, the center of the rotating rod is at the same position as the center of the arc rod, a fixed rod is installed between the rotating rod and the arc rod, the fixed rod and the arc rod pass through the through groove.

[0014] The surface of the ventilation conduit is provided with a plurality of conical pointed shafts, the pointed shafts and the ventilation conduit are an integrally formed structure, and the arc-shaped cathode rod and the ventilation conduit are provided as a group.

[0015] The workbench is movably provided with two rotating shafts inside, and the two rotating shafts are arranged in a cross shape. Bevel gears are fixedly sleeved on the surfaces of the two rotating shafts, and the two bevel gears are meshed. A spur gear is fixedly installed on the surface of one of the rotating shafts, and a transverse groove is opened on the surface of the workbench. A gear rod is fixedly installed on the lower surface of the placement rack, and the gear rod is stuck in the inside of the transverse groove. A reversing gear is meshed on the surface of the spur gear, and the gear rod is meshed with the reversing gear. A first gear roller is fixedly sleeved on the surface of the other rotating shaft, and a second gear roller is movably sleeved on the surface of the rotating rod. The teeth of the second gear roller are equidistantly arranged in the same number, and a plurality of annular array inclined grooves are opened inside the second gear roller, and a plurality of grooves are opened at corresponding positions on the surface of the rotating rod, and a right-angled triangular block is installed inside the groove through a connecting spring, and the shape of the inclined groove matches the tip shape of the block, and the extreme end of the block is stuck in the inside of the inclined groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a ventilation duct, a cathode rod and a negative pressure air duct are provided, the negative pressure air duct allows the internal gas of the intake manifold to flow, the cathode rod starts the discharge at the tip of its surface, the gas drives the dust to enter the interior of the ventilation duct through the ventilation hole, the dust can quickly approach the tip and carry electrons, according to the principle of induction electrification, since the tip position of the cathode rod releases electrons, the corresponding position on the inner side of the ventilation duct is enriched with positive charges, attracting dust with electrons, the dust will adhere to the inside of the ventilation duct, or enter the inside of the negative pressure air duct with the airflow, since the device can be completely located inside the intake manifold, the process of attaching electrons and absorbing dust can be quickly realized, the efficiency of dust removal is improved, and the cleaning effect is better. In the present invention, a sealing plate is provided and a non-conductive circular sealing plate is fixed at one end of the cathode rod. Firstly, the cathode rod is supported so that it can be suspended inside the ventilation duct. Secondly, one end of the ventilation duct is sealed to prevent a large amount of airflow from entering from one end of the ventilation duct, which makes it difficult to drive the dust on the inner wall of the intake manifold to move, thereby indirectly improving the dust removal effect. In the present invention, by arranging cathode rods and ventilation ducts, the straight cathode rods and ventilation ducts enter the straight pipes of the intake manifold for dust removal, and then the motor is started to rotate the rotating rod, driving the arc-shaped cathode rods and ventilation ducts to enter the side pipes of the intake manifold for dust removal. During the dust removal process, no single pipe is required for processing, thereby further improving the dust removal efficiency. In the present invention, by setting a pointed shaft, a plurality of conical pointed shafts are provided on the surface of the ventilation duct. Based on the principle of charge conservation, electric charge can neither be created nor destroyed, but can only be transferred from one position to another. Therefore, the outer side of the ventilation duct will be enriched with electrons, and released through the position of the pointed shaft. At this time, it can be ensured that before the dust enters the interior of the ventilation duct, part of the dust will carry electrons, thereby increasing the probability of dust carrying electrons, thereby ensuring a better dust removal effect. In the present invention, by setting the second gear roller, the block and the inclined groove, the motor makes the rotating rod rotate forward, and through the transmission action of the first gear roller, the second gear roller, the spur gear and the reversing gear, the side pipe is just moved to the position of the ventilation duct, and the side pipe is just moved to the position of the ventilation duct. At this time, the motor drives the rotating rod to reverse, and the placement rack is located at a constant position, so that the ventilation duct returns to the inside of the side duct for dust removal. The simultaneous action of the placement rack and the ventilation duct is achieved through the rotation of the rotating rod, which reduces the use of power sources and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention; Figure 2 It is a partial structural schematic diagram of the through slot position of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention; Figure 3 It is a schematic diagram of the structure of the external threaded pipe position of a negative pressure electrostatic dust removal device for a finished product of an intake manifold of the present invention; Figure 4 It is a schematic diagram of the disassembled structure of the ventilation duct and cathode rod of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention; Figure 5 It is a partial structural schematic diagram of the tip axis position of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention; Figure 6It is a schematic diagram of the connection structure of the rotating rod and the arc-shaped rod of the negative pressure electrostatic dust removal device for the finished product of the intake manifold of the present invention; Figure 7 It is a schematic diagram of the meshing structure of a spur gear and a gear rod of a negative pressure electrostatic dust removal device for a finished product of an intake manifold according to the present invention; Figure 8 It is a partial structural schematic diagram of the chute position of a negative pressure electrostatic dust removal device for a finished product of an intake manifold according to the present invention; Fig. 9 It is a partial structural schematic diagram of the connection spring position of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention; Fig.10 This is a partial structural schematic diagram of the position of the externally threaded tube of an arc-shaped ventilation duct of a finished negative pressure electrostatic dust removal device for an intake manifold of the present invention.

[0018] In the figure: 1, cathode rod; 2, ventilation duct; 3, ventilation hole; 4, negative pressure air duct; 5, sealing plate; 6, external threaded pipe; 7, internal threaded sleeve; 8, workbench; 9, placement rack; 10, rotating rod; 11, motor; 12, through groove; 13, arc rod; 14, fixed rod; 15, pointed shaft; 16, rotating shaft; 17, bevel gear; 18, transverse groove; 19, spur gear; 20, gear rod; 21, first gear roller; 22, second gear roller; 23, inclined groove; 24, groove; 25, connecting spring; 26, block; 27, reversing gear; 28, connecting rod; 29, connecting ring; 30, annular groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] A negative pressure electrostatic dust removal device for a finished intake manifold comprises a cathode rod 1 with a plurality of spikes on its surface, such as Figure 4 As shown, the cathode rod 1 is a conductor. Since its surface has a tip, when the cathode rod 1 is discharged, its electrons will be more easily gathered at the tip and released, thereby ensuring the discharge effect. A ventilation duct 2 is sleeved on the surface of the cathode rod 1. The length of the cathode rod 1 is the same as the length of the ventilation duct 2. The cathode rod 1 runs through the entire intake manifold pipeline, and there is a certain gap between the ventilation duct 2 and the inner wall of the intake manifold. The ventilation duct 2 is a conductor. According to the principle of induction electrification, since the tip of the cathode rod 1 releases electrons, the corresponding position on the inner side of the ventilation duct 2 is enriched with positive charges. A plurality of ventilation holes 3 are provided on the surface of the ventilation duct 2. The gas drives the dust from the position of the ventilation holes 3 into the interior of the ventilation duct 2. A negative pressure air duct 4 is installed at one end of the ventilation duct 2, and the negative pressure air duct 4 is for suction.

[0021] Place the ventilation duct 2 inside a certain pipe of the intake manifold, start the negative pressure duct 4 so that the inside of the intake manifold 4 is in a negative pressure state. It should be noted that the device needs to be used in a dust-free workshop. The negative pressure duct 4 allows the internal gas of the intake manifold to flow, and the air port position of the intake manifold cannot be blocked during use to ensure that external gas can enter the inside of the intake manifold and flow to the negative pressure duct 4. At the same time, the cathode rod 1 is started, and the tip of its surface discharges. Since the gas drives the dust into the inside of the ventilation duct 2 through the vent 3, the dust can quickly approach the tip and carry electrons. Since the corresponding position on the inside of the ventilation duct 2 is enriched with positive charges, it attracts dust with electrons, and the dust will adhere to the inside of the ventilation duct 2, or enter the inside of the negative pressure duct 4 with the air flow. A collecting device can be set at the end of the negative pressure duct 4. Since the device can be completely located inside the intake manifold, the process of attaching electrons and adsorbing dust can be quickly realized, thereby improving the efficiency of dust removal and achieving better cleaning effect. No plug is required during use, which is more convenient and quick.

[0022] like Figure 3-4 As shown, a non-conductive circular sealing plate 5 is fixed at one end of the cathode rod 1, and the side of the sealing plate 5 abuts against the inner wall of the ventilation duct 2. A plurality of annular connecting rods 28 are fixedly installed at the end of the cathode rod 1 away from the sealing plate 5, and the connecting rods 28 abut against the inside of the ventilation duct 2. An annular groove 30 is provided on the inner side of one end of the ventilation duct 2, and a connecting ring 29 is movably installed inside the annular groove 30. One end of the plurality of connecting rods 28 is fixed on the inner side of the connecting ring 29, and the depth of the annular groove 30 is the same as the thickness of the connecting ring 29. Both the connecting rods 28 and the connecting ring 29 are non-conductive, and the connecting rods 28 and the connecting ring 29 are an integrally formed structure.

[0023] The sealing plate 5 has two functions. One is to provide support for the cathode rod 1 so that it can be suspended inside the ventilation duct 2. The other is to seal one end of the ventilation duct 2 to prevent a large amount of airflow from entering from one end of the ventilation duct 2, which makes it difficult to move the dust on the inner wall of the intake manifold. The connecting rod 28 and the connecting ring 29 also provide support for the cathode rod 1, and the connecting rod 28 will not affect the flow of gas, ensuring that some dust can enter the negative pressure air duct 4 with the airflow.

[0024] One end of the ventilation duct 2 away from the sealing plate 5 is fixedly connected to an external threaded tube 6. Figure 3 As shown, the external threaded tube 6 and the ventilation duct 2 are an integrally formed structure, the surface of the external threaded tube 6 is threadedly sleeved with an internal threaded sleeve 7, and the negative pressure air duct 4 is connected to the internal threaded sleeve 7. Since the inner wall of the ventilation duct 2 will absorb dust during use, it needs to be replaced after a period of use. The threaded installation method is simple and convenient.

[0025] The method of removing dust from the intake manifold by using the cathode rod 1 and the ventilation duct 2 includes the following two embodiments: Example

[0026] A negative pressure electrostatic dust removal device for a finished intake manifold also includes a workbench 8 for operation, such as Figure 1-2 As shown, two different types of cathode rods 1 and ventilation ducts 2 are arranged on the surface of the workbench 8, and their axial path shapes are respectively linear and arc-shaped. The linear cathode rod 1 and ventilation duct 2 are used in the main duct of the intake manifold, and the arc-shaped cathode rod 1 and ventilation duct 2 are used in the side duct of the intake manifold. Figure 5-6 As shown, the arc shape is only suitable for the intake manifold with a constant curvature of the side duct. The straight cathode rod 1 and the ventilation duct 2 are fixed on the surface of the workbench 8. A movable placement rack 9 is installed on the surface of the workbench 8. The placement rack 9 is used to place the intake manifold. The arc-shaped cathode rod 1 and the ventilation duct 2 are movably installed above the workbench 8. A rotating assembly is arranged inside the workbench 8 to make the arc-shaped cathode rod 1 and the ventilation duct 2 move along their own arc path. When the straight cathode rod 1 and the ventilation duct 2 cooperate to remove dust, the arc-shaped cathode rod 1 and the ventilation duct 2 are located outside the intake manifold. Only when they themselves are removing dust, they are driven into the inside of the side duct of the intake manifold by the rotating assembly.

[0027] The workbench 8 is provided with a cavity inside, and four groups of arc-shaped cathode rods 1 and ventilation ducts 2 are provided, such as Figure 6 As shown, the rotating assembly includes a rotating rod 10, which is movably installed inside the workbench 8. A motor 11 is fixed on the surface of the workbench 8. The motor 11 drives the rotation of the rotating rod 10. A through groove 12 is provided on the surface of the workbench 8. An arc rod 13 is fixedly installed at one end of the internal threaded sleeve 7. The arc rod 13 is cocentric with the arc cathode rod 1. For the arc-shaped ventilation duct 2, it is tangentially fixed to the corresponding external threaded tube 6. The internal threaded sleeve 7 is tangentially connected to the arc rod 13. The center position of the arc rod 13 is the same, ensuring that when the arc rod 13 rotates, the ventilation duct 2 and the arc rod 13 have the same rotation path, and at the same time will not affect the disassembly of the ventilation duct 2. What needs to be ensured is that since the external threaded tube 6 is a straight tube, the cathode rod 1 should be installed with a smaller diameter to avoid collision with the inner wall of the external threaded tube 6 during installation. A fixed rod 14 is installed between the rotating rod 10 and the arc rod 13, and the fixed rod 14 and the arc rod 13 pass through the through groove 12.

[0028] When in use, the intake manifold is placed at the corresponding position of the placement rack 9, and the placement rack 9 is moved to the dust removal position, so that the straight cathode rod 1 and the ventilation duct 2 enter the straight pipe of the intake manifold for dust removal, and then the motor 11 is started to rotate the rotating rod 10, driving the arc-shaped cathode rod 1 and the ventilation duct 2 to enter the side pipe of the intake manifold for dust removal. During the dust removal process, no single pipe needs to be processed, which further improves the dust removal efficiency. Example

[0029] A negative pressure electrostatic dust removal device for a finished intake manifold also includes a workbench 8 for operation, such as Figure 1-2 As shown, two different types of cathode rods 1 and ventilation ducts 2 are arranged on the surface of the workbench 8, and their axial path shapes are respectively linear and arc-shaped. The linear cathode rod 1 and ventilation duct 2 are used in the main duct of the intake manifold, and the arc-shaped cathode rod 1 and ventilation duct 2 are used in the side duct of the intake manifold. Figure 5 As shown, a plurality of conical pointed shafts 15 are arranged on the surface of the ventilation duct 2, and the pointed shafts 15 and the ventilation duct 2 are an integrally formed structure, and the arc-shaped cathode rod 1 and the ventilation duct 2 are arranged as a group.

[0030] Since the ventilation duct 2 is a conductor, according to the principle of induction electrification, electrons are released at the tip axis 15 of the cathode rod 1, so the corresponding position on the inner side of the ventilation duct 2 is enriched with positive charges. Based on the principle of charge conservation, charges can neither be created nor destroyed, and can only be transferred from one position to another. Therefore, electrons are enriched on the outer side of the ventilation duct 2 and released through the tip axis 15. At this time, it can be ensured that before the dust enters the interior of the ventilation duct 2, part of the dust will carry electrons, thereby increasing the probability of dust carrying electrons, thereby ensuring a better dust removal effect, and the structure is also very simple.

[0031] Since a sharp shaft 15 is provided on the surface of the ventilation duct 2, if four sets of arc-shaped cathode rods 1 and the ventilation duct 2 are simultaneously placed in the intake manifold for discharge, according to the tip discharge principle, the sharp shafts 15 on the surfaces of two adjacent ventilation ducts 2 will generate an arc, which may cause damage to the intake manifold and also has a great safety hazard. Therefore, in this embodiment, it is not recommended to use four sets of arc-shaped cathode rods 1 and the ventilation duct 2 for dust removal at the same time.

[0032] The rotating assembly includes two movable rotating shafts 16, and the two rotating shafts 16 are arranged in a cross shape. Figure 7As shown, the surfaces of the two rotating shafts 16 are fixedly sleeved with bevel gears 17, and the two bevel gears 17 are meshed with each other. A spur gear 19 is fixedly installed on the surface of one of the rotating shafts 16. A transverse groove 18 is opened on the surface of the workbench 8. A gear rod 20 is fixedly installed on the lower surface of the placement frame 9. The gear rod 20 is stuck inside the transverse groove 18. A reversing gear 27 is meshed on the surface of the spur gear 19. The gear rod 20 meshes with the reversing gear 27. When the reversing gear 27 rotates, it will drive the gear rod 20 to move. A first gear roller 21 is fixedly sleeved on the surface of the other rotating shaft 16, and a second gear roller 22 is movably sleeved on the surface of the rotating rod 10. The teeth of the second gear roller 22 are equidistantly arranged with the same number, as shown in FIG. Figure 8 As shown, the second gear roller 22 is provided with a plurality of annular array of inclined grooves 23, and the surface of the rotating rod 10 is provided with a plurality of grooves 24 at corresponding positions. A right-angled triangular block 26 is installed inside the groove 24 through a connecting spring 25, as shown in FIG. Fig. 9 As shown, the shape of the inclined groove 23 matches the shape of the tip of the clamping block 26 , and the extreme end of the clamping block 26 is clamped in the interior of the inclined groove 23 .

[0033] In the initial state, if Figure 7 As shown, the intake manifold is placed above the placement rack 9. At this time, the arc-shaped ventilation duct 2 needs to be away from the placement rack 9. The motor 11 makes the rotating rod 10 rotate forward, and drives the ventilation duct 2 away from the placement rack 9 through the connection of the fixed rod 14. During this process, the placement rack 9 does not move until the distance between the ventilation duct 2 and the placement rack 9 is the side pipe length of the intake manifold. Due to the special shape of the second gear roller 22, the first gear roller 21 will not be driven to rotate during this process, and the teeth of the second gear roller 22 move to a position meshing with the first gear roller 21. Then the rotating rod 10 continues to rotate forward, and the second gear roller 22 drives the first gear roller 21 to rotate. Through the connection of the rotating shaft 16 and the transmission of the two bevel gears 17, the spur gear 19 rotates, and then through the steering of the reversing gear 27, the gear rod 20 drives the placement rack 9 to move the distance of a side pipe. At this time, the side pipe just moves to the position of the ventilation duct 2, and the first gear roller 21 and the second gear roller 22 return to the initial state. At this time, the motor 11 drives the rotating rod 10 to reverse, as shown in FIG. Fig. 9 As shown, the rotating rod 10 drives the block 26 to squeeze the inclined groove 23. Due to the squeezing effect of the inclined surface, the second gear roller 22 will not rotate accordingly. On the contrary, when the rotating rod 10 rotates forward, the other side is a vertical surface and there is no squeezing effect. Therefore, the second gear roller 22 will rotate with the rotating rod 10. The rotating rod 10 is reversed through the connection of the fixed rod 14, so that the ventilation duct 2 returns to the inside of the side duct for dust removal. At this time, it returns to the position shown in FIG. Figure 7 In the initial state, the placement rack 9 and the ventilation tube 2 can be simultaneously moved by the rotation of the rotating rod 10, thereby reducing the use of power source and saving costs.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A finished negative pressure electrostatic dust removal device for an intake manifold, comprising a cathode rod (1) with a plurality of spikes on its surface, the cathode rod (1) being a conductor, characterized in that: The surface of the cathode rod (1) is sleeved with a ventilation duct (2), the cathode rod (1) passes through the entire intake manifold pipeline, the ventilation duct (2) is a conductor, a plurality of ventilation holes (3) are provided on the surface of the ventilation duct (2), a gap is provided between the cathode rod (1) and the inner wall of the ventilation duct (2), a negative pressure air duct (4) is installed at one end of the ventilation duct (2), and the cathode rod (1) is arranged inside the ventilation duct (2) through a mounting assembly.

2. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 1, characterized in that: The mounting assembly comprises a circular sealing plate (5), the sealing plate (5) being a non-conductor, the sealing plate (5) being fixed to one end of the cathode rod (1), the side edge of the sealing plate (5) being against the inner wall of the ventilation duct (2), and a plurality of annularly arranged connecting rods (28) being fixedly mounted on one end of the cathode rod (1) away from the sealing plate (5), the connecting rods (28) being a non-conductor, and the connecting rods (28) being against the inside of the ventilation duct (2).

3. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 2, characterized in that: An annular groove (30) is provided on the inner side of one end of the ventilation duct (2), a connecting ring (29) is movably mounted inside the annular groove (30), one end of a plurality of connecting rods (28) is fixed on the inner side of the connecting ring (29), the depth of the annular groove (30) is the same as the thickness of the connecting ring (29), the connecting ring (29) is a non-conductor, and the connecting rods (28) and the connecting ring (29) are an integrally formed structure.

4. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 3, characterized in that: An end of the ventilation duct (2) away from the sealing plate (5) is fixedly connected to an externally threaded tube (6); the externally threaded tube (6) and the ventilation duct (2) are an integrally formed structure; an internally threaded sleeve (7) is threadedly sleeved on the surface of the externally threaded tube (6); and the negative pressure air duct (4) is connected to the internally threaded sleeve (7).

5. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 4, characterized in that: The axial path shapes of the cathode rod (1) and the ventilation duct (2) are respectively set to be a straight line and an arc line. The straight-line cathode rod (1) and the ventilation duct (2) are used in the main duct of the intake manifold, and the arc-shaped cathode rod (1) and the ventilation duct (2) are used in the side duct of the intake manifold.

6. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 5, characterized in that: The arc-shaped ventilation conduit (2) is tangentially fixed to a corresponding internally threaded sleeve (7).

7. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 6, characterized in that: The invention also comprises a workbench (8) for operation, wherein the straight cathode rod (1) and the ventilation duct (2) are fixed on the surface of the workbench (8), and a movable placement rack (9) is installed on the surface of the workbench (8), and the placement rack (9) is used to place the intake manifold, and the arc-shaped cathode rod (1) and the ventilation duct (2) are movably installed above the workbench (8), and a rotating assembly is arranged inside the workbench (8) for moving the arc-shaped cathode rod (1) and the ventilation duct (2) along their own arc paths.

8. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 7, characterized in that: A cavity is arranged inside the workbench (8); one or more groups of the arc-shaped cathode rod (1) and the ventilation duct (2) are arranged; the rotating assembly comprises a rotating rod (10); the rotating rod (10) is movably mounted inside the workbench (8); a motor (11) is fixed on the surface of the workbench (8); the motor drives the rotating rod (10) to rotate; a through groove (12) is provided on the surface of the workbench (8); an arc-shaped rod (13) is fixedly mounted on one end of the internally threaded sleeve (7); the arc-shaped rod (13) is cocentric with the arc-shaped cathode rod (1); the internally threaded sleeve (7) is tangentially connected to the arc-shaped rod (13); the center of the rotating rod (10) and the center of the arc-shaped rod (13) are at the same position; a fixed rod (14) is mounted between the rotating rod (10) and the arc-shaped rod (13); the fixed rod (14) and the arc-shaped rod (13) pass through the through groove (12).

9. The negative pressure electrostatic dust removal device for finished intake manifold according to claim 8, characterized in that: The surface of the ventilation duct (2) is provided with a plurality of conical pointed shafts (15), the pointed shafts (15) and the ventilation duct (2) are an integrally formed structure, and the arc-shaped cathode rod (1) and the ventilation duct (2) are provided as a group.

10. A negative pressure electrostatic dust removal device for finished intake manifold according to claim 9, characterized in that: Two rotating shafts (16) are movably arranged inside the workbench (8). The two rotating shafts (16) are arranged in a cross shape. The surfaces of the two rotating shafts (16) are fixedly sleeved with bevel gears (17). The two bevel gears (17) are meshed. A spur gear (19) is fixedly installed on the surface of one of the rotating shafts (16). A transverse groove (18) is provided on the surface of the workbench (8). A gear rod (20) is fixedly installed on the lower surface of the placement frame (9). The gear rod (20) is stuck in the transverse groove (18). A reversing gear (27) is meshed on the surface of the spur gear (19). The gear rod (20) meshes with the reversing gear (27). A first toothed roller (21) is fixedly sleeved on the surface of the rotating shaft (16), a second toothed roller (22) is movably sleeved on the surface of the rotating rod (10), the teeth of the second toothed roller (22) are arranged at equal intervals and in equal numbers, a plurality of annular array of inclined grooves (23) are provided inside the second toothed roller (22), a plurality of grooves (24) are provided at corresponding positions on the surface of the rotating rod (10), a right-angled triangular clamping block (26) is installed inside the groove (24) via a connecting spring (25), the shape of the inclined groove (23) matches the shape of the tip of the clamping block (26), and the extreme end of the clamping block (26) is clamped inside the inclined groove (23).

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