Vacuum pump filter and vacuum pump using same

Abstract

The invention discloses a vacuum pump filter and a vacuum pump using the same, and relates to the technical field of vacuum pump filters, the vacuum pump filter comprises two filter boxes, the bottom ends of the filter boxes are fixedly connected with exhaust pipes, air is conveyed into the filter boxes through air inlet pipes, and the vacuum pump filter further comprises a switching mechanism and a shielding mechanism. By arranging the switching mechanism, when one filter box is used, an opening of one groove faces a corresponding displacement rod, the displacement rod and an insertion block are displaced under the elastic action of a first spring, one end of the displacement rod is displaced into the groove, the insertion block is clamped into an insertion groove, and a top cover is reinforced; meanwhile, a displacement rod on the other filter box moves out of a groove, an insertion block moves out of an insertion groove, fixing of a second connecting rod is cancelled, at the moment, a top cover can be disassembled, a filter element in the filter box can be replaced, and the filter element in the filter box can be replaced conveniently under the condition that the machine is not stopped.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum pump filters, and specifically relates to a vacuum pump filter and a vacuum pump using the filter. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical, or physical-chemical methods to evacuate an evacuated container to obtain a vacuum. Generally speaking, a vacuum pump is a device that improves, generates, and maintains a vacuum in a closed space by various methods. According to the working principle of the vacuum pump, the vacuum pump can basically be divided into two types, namely, a gas capture pump and a gas transfer pump, which are widely used in industries such as metallurgy, chemical industry, food, and electronic coating.

[0003] When using a vacuum pump, a filter is required. The filter can block solid particles, dust, and impurities in the air, prevent these impurities from entering the vacuum pump, thereby reducing mechanical wear and extending the service life of the vacuum pump. After the filter has been used for a long time, the blockage of the filter will hinder the normal flow of gas, resulting in a significant reduction in the pumping capacity of the vacuum pump, thereby affecting the vacuum degree and ultimately affecting the performance of the entire system. It is necessary to replace the filter element of the filter. However, when replacing the filter element, it is necessary to stop the machine for operation, which affects the use of the vacuum pump. In order to achieve the purpose of replacing the filter element without stopping the machine, a vacuum pump filter and a vacuum pump using the filter are provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a vacuum pump filter and a vacuum pump using the filter in order to achieve the purpose of replacing the filter element without stopping the machine.

[0005] To achieve the above object, the present invention provides the following technical solution: A vacuum pump filter includes two filter boxes. An exhaust pipe is fixedly connected to the bottom end of the filter box. Air is transported into the filter box through an intake pipe. A top cover is installed at the top end of the filter box. A filter element is installed in the inner cavity of the filter box. A sealing ring is installed at the bottom end of the top cover. The filter element is replaced through a switching mechanism. When the top cover is opened, the exhaust pipe is automatically closed through a shielding mechanism; The switching mechanism includes a connecting seat which is fixedly connected between the two filter boxes. One end of the connecting seat is provided with an installation port, and the intake pipe is connected to the installation port through a flange. Two transverse grooves are formed in the inner wall of the connecting seat, and both of the two transverse grooves communicate with the installation port. A rotating seat is rotatably connected at the junction of the installation port and the transverse grooves inside the connecting seat. A guiding groove is formed inside the rotating seat. A motor is installed at the bottom end of the connecting seat, and the output end of the motor is connected to the rotating seat. A rotating column is fixedly connected to the top end of the rotating seat. Two grooves are formed on the outer wall of the rotating column. First connection grooves and second connection grooves are respectively formed on both sides of the top end of the filter box. First connecting rods and second connecting rods are respectively fixedly connected to both sides of the bottom end of the top cover.

[0006] As a further scheme of the present invention: The switching mechanism further includes a rotating block which is rotatably connected to the top end of the top cover. A threaded rod is fixedly connected to the bottom end of the rotating block. A displacement plate is slidably connected to the outer wall of the threaded rod. The displacement plate is slidably connected inside the first connecting rod. One end of the displacement plate is rotatably connected to a connecting rod. One end of the connecting rod is rotatably connected to a fixed block. The fixed block is slidably connected inside the first connecting rod and extends to the outer wall of the first connecting rod. A fixing groove is formed in the inner wall of the first connection groove. A displacement groove is formed at the bottom end of the second connecting rod. A slot is formed on the outer wall of one side of the second connecting rod. A displacement rod which penetrates through the second connection groove is slidably connected inside the filter box. One end of the displacement rod extends to the outside of the filter box. A plug block is fixedly connected to the other end of the displacement rod. A first spring is connected between the plug block and the filter box.

[0007] As a further scheme of the present invention: The shielding mechanism includes a baffle which is rotatably connected to the inner wall of the exhaust pipe. A connecting shaft is fixedly connected to one end of the baffle. A first bevel gear is fixedly connected to one end of the connecting shaft. A second bevel gear is rotatably connected to the outer wall of the first bevel gear inside the filter box. A rotating shaft is fixedly connected to the top end of the second bevel gear. An installation column is fixedly connected to the top end of the rotating shaft. The installation column is rotatably connected to the bottom end of the first connection groove. Card slots are formed on both sides of the installation column inside the filter box. A square block is fixedly connected to the bottom end of the threaded rod. The square block is rotatably connected to the bottom end of the first connecting rod. A square groove is formed at the top end of the installation column. A block which extends out of the installation column is slidably connected inside the installation column. A second spring is connected between the block and the installation column. A pressing rod is slidably connected to the top of the block inside the installation column. The pressing rod extends into the inner cavity of the square groove.

[0008] As a further solution of the present invention: The two ends of the guiding groove are open at a 90-degree distribution, and the positions of the two grooves are consistent with the opening directions of the two ends of the guiding groove.

[0009] As a further solution of the present invention: The outer wall of the first connecting rod fits with the inner wall of the first connecting groove, and the outer wall of the second connecting rod fits with the inner wall of the second connecting groove.

[0010] As a further solution of the present invention: A threaded hole is provided on the outer wall of the displacement plate, the threaded hole matches the threaded rod, and one end of the outer wall of the fixed block fits with the inner wall of the fixed groove.

[0011] As a further solution of the present invention: One end of the displacement rod is a semi-circular surface, the outer wall of the displacement rod fits with the inner wall of the displacement groove, and the inner wall of the insertion slot fits with the outer wall of the insertion block.

[0012] As a further solution of the present invention: The inner wall of the square groove fits with the outer wall of the square block, the second bevel gear meshes with the first bevel gear, and the diameter length of the second bevel gear is half of the diameter length of the first bevel gear.

[0013] As a further solution of the present invention: The top end of the clamping block is provided with an inclined surface, the bottom end of the extrusion rod contacts the inclined surface, and one end of the outer wall of the clamping block fits with the inner wall of the clamping groove.

[0014] A vacuum pump applying a vacuum pump filter, comprising a pump body, an air inlet is provided at the top end of the pump body, a connecting pipe is connected to the top end of the air inlet through a flange, and the connecting pipe is communicated with two exhaust pipes.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a switching mechanism, when one filter box is in use, at this time, the opening of one groove faces the corresponding displacement rod. At this time, the displacement rod and the insertion block are displaced under the elastic force of the first spring. One end of the displacement rod is displaced into the groove, and the insertion block is clamped into the insertion slot to reinforce the top cover. At the same time, the displacement rod on the other filter box is displaced out of the groove, and the insertion block is displaced out of the insertion slot, canceling the fixation of the second connecting rod. At this time, the top cover can be removed, and the filter element in the filter box can be replaced, which is convenient for replacing the filter element in the filter box without stopping the machine. 2. By setting up an occlusion mechanism, when removing the top cover, rotate the rotating block half a turn, driving the second bevel gear to rotate. The second bevel gear rotates half a turn to drive the first bevel gear to rotate 90 degrees. The rotation of the first bevel gear drives the baffle to rotate. The baffle rotates 90 degrees to close the exhaust pipe. At the same time, the clamping block engages into the mounting post to fix the mounting post, preventing the baffle from loosening and causing the exhaust pipe to open. This facilitates automatically closing the exhaust pipe when removing the top cover, preventing the exhaust pipe from sucking air when replacing the filter element and causing dust to enter the vacuum pump through the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the filter box of the present invention; Figure 3 is a cross-sectional view of the rotating seat of the present invention; Figure 4 is a schematic structural diagram of the rotating seat of the present invention; Figure 5 is a schematic installation diagram of the filter element of the present invention; Figure 6 is a cross-sectional view of the top cover of the present invention; Figure 7 is a cross-sectional view of the filter box of the present invention; Figure 8 is a cross-sectional view of the mounting post of the present invention.

[0017] In the figure: 1. Filter box; 2. Exhaust pipe; 3. Intake pipe; 4. Top cover; 5. Filter element; 6. Sealing ring; 7. Switching mechanism; 701. Connecting seat; 702. Installation port; 703. Horizontal groove; 704. Motor; 705. Rotating seat; 706. Guide groove; 707. Rotating column; 708. Groove; 709. First connecting groove; 710. First connecting rod; 711. Rotating block; 712. Threaded rod; 713. Displacement plate; 714. Link; 715. Fixed block; 716. Fixed groove; 717. Second connecting groove; 718. Second connecting rod; 719. Displacement groove; 720. Slot; 721. Displacement rod; 722. Plug; 723. First spring; 8. Occlusion mechanism; 801. Baffle; 802. Connecting shaft; 803. First bevel gear; 804. Second bevel gear; 805. Rotating shaft; 806. Mounting post; 807. Card slot; 808. Square block; 809. Square groove; 810. Clamping block; 811. Second spring; 812. Extrusion rod; 9. Pump body; 10. Intake port; 11. Connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0020] Please refer to Figures 1 to 8, in the embodiment of the present invention, a vacuum pump filter includes two filter boxes 1. An exhaust pipe 2 is fixedly connected to the bottom end of the filter box 1. Air is transported into the filter box 1 through an intake pipe 3. A top cover 4 is installed at the top end of the filter box 1. A filter element 5 is installed in the inner cavity of the filter box 1. A sealing ring 6 is installed at the bottom end of the top cover 4. The filter element 5 is replaced through a switching mechanism 7. When the top cover 4 is opened, the exhaust pipe 2 is automatically closed through a shielding mechanism 8. The switching mechanism 7 includes a connecting seat 701. The connecting seat 701 is fixedly connected between the two filter boxes 1. An installation port 702 is provided at one end of the connecting seat 701. The intake pipe 3 is connected to the installation port 702 through a flange. Two transverse grooves 703 are opened on the inner wall of the connecting seat 701. Both of the two transverse grooves 703 communicate with the installation port 702. A rotating seat 705 is rotatably connected at the junction of the installation port 702 and the transverse grooves 703 inside the connecting seat 701. A guiding groove 706 is opened inside the rotating seat 705. A motor 704 is installed at the bottom end of the connecting seat 701. The output end of the motor 704 is connected to the rotating seat 705. A rotating column 707 is fixedly connected to the top end of the rotating seat 705. Two grooves 708 are opened on the outer wall of the rotating column 707. First connection grooves 709 and second connection grooves 717 are respectively opened on both sides of the top end of the filter box 1. First connecting rods 710 and second connecting rods 718 are respectively fixedly connected to both sides of the bottom end of the top cover 4.

[0021] The switching mechanism 7 further includes a rotating block 711. The rotating block 711 is rotatably connected to the top end of the top cover 4. A threaded rod 712 is fixedly connected to the bottom end of the rotating block 711. A displacement plate 713 is slidably connected to the outer wall of the threaded rod 712. The displacement plate 713 is slidably connected inside the first connecting rod 710. One end of the displacement plate 713 is rotatably connected to a connecting rod 714. One end of the connecting rod 714 is rotatably connected to a fixed block 715. The fixed block 715 is slidably connected inside the first connecting rod 710 and extends to the outer wall of the first connecting rod 710. A fixing groove 716 is opened on the inner wall of the first connection groove 709. A displacement groove 719 is opened at the bottom end of the second connecting rod 718. A slot 720 is opened on the outer wall of one side of the second connecting rod 718. A displacement rod 721 penetrating through the second connection groove 717 is slidably connected inside the filter box 1. One end of the displacement rod 721 extends to the outside of the filter box 1. A plug block 722 is fixedly connected to the other end of the displacement rod 721. A first spring 723 is connected between the plug block 722 and the filter box 1.

[0022] In this embodiment: When using the filter box 1, the air inlet pipe 3 conveys air into the mounting port 702. The air in the mounting port 702 enters the guiding groove 706, passes through the guiding groove 706 and enters a transverse groove 703, and then enters the corresponding filter box 1 for filtration. When switching the use of the filter box 1, start the motor 704. The operation of the motor 704 drives the rotating seat 705 to rotate. The rotation of the rotating seat 705 adjusts the position of the guiding groove 706, so as to respectively perform use operations on different filter boxes 1.

[0023] When installing the top cover 4, insert the first connecting rod 710 into the first connecting groove 709, insert the second connecting rod 718 into the second connecting groove 717, and then rotate the rotating block 711. The rotation of the rotating block 711 drives the threaded rod 712 to rotate. The rotation of the threaded rod 712 drives the displacement plate 713 to displace. The displacement of the displacement plate 713 drives the fixing block 715 to displace through the connecting rod 714. The displacement of the fixing block 715 is inserted into the fixing groove 716 to fix the top cover 4; when disassembling, rotate the rotating block 711 half a turn to drive the fixing block 715 to displace out of the fixing groove 716, cancel the fixation of the top cover 4, so that the top cover 4 can be disassembled, which is convenient for replacing the filter element 5 in the filter box 1.

[0024] When the rotating seat 705 rotates, it drives the rotating column 707 to rotate. The rotation of the rotating column 707 drives the groove 708 to perform a displacement operation; when using a filter box 1, at this time, the opening of a groove 708 faces the corresponding displacement rod 721. At this time, the displacement rod 721 and the plug 722 are displaced under the elastic force of the first spring 723. One end of the displacement rod 721 is displaced into the groove 708, and the plug 722 is engaged into the slot 720 to reinforce the top cover 4; at the same time, the displacement rod 721 on the other filter box 1 is displaced out of the groove 708. The displacement of the displacement rod 721 drives the plug 722 to displace. The displacement of the plug 722 out of the slot 720 cancels the fixation of the second connecting rod 718. At this time, the top cover 4 can be disassembled. The displacement rod 721 can slide along the displacement groove 719, and the filter element 5 in the filter box 1 can be replaced, which is convenient for replacing the filter element 5 in the filter box 1 without shutting down the machine.

[0025] Please refer specifically to Figures 5 to 8, the shielding mechanism 8 includes a baffle 801 which is rotatably connected to the inner wall of the exhaust pipe 2. One end of the baffle 801 is fixedly connected to a connecting shaft 802, and one end of the connecting shaft 802 is fixedly connected to a first bevel gear 803. Inside the filter box 1, a second bevel gear 804 is rotatably connected to the outer wall of the first bevel gear 803. The top of the second bevel gear 804 is fixedly connected to a rotating shaft 805, and the top of the rotating shaft 805 is fixedly connected to a mounting post 806. The mounting post 806 is rotatably connected to the bottom end of the first connecting groove 709. On both sides of the mounting post 806 inside the filter box 1, card slots 807 are provided. The bottom end of the threaded rod 712 is fixedly connected to a square block 808, and the square block 808 is rotatably connected to the bottom end of the first connecting rod 710. A square groove 809 is provided at the top of the mounting post 806. Inside the mounting post 806, a latch 810 extending out of the mounting post 806 is slidably connected. A second spring 811 is connected between the latch 810 and the mounting post 806. Inside the mounting post 806, a pressing rod 812 is slidably connected to the top of the latch 810, and the pressing rod 812 extends into the inner cavity of the square groove 809.

[0026] In this embodiment: When the first connecting rod 710 is connected in the first connecting groove 709, the square block 808 is engaged into the square groove 809. The square block 808 pushes the pressing rod 812 to displace. The displacement of the pressing rod 812 pushes the latch 810 to displace into the mounting post 806, causing extrusion of the second spring 811. When removing the top cover 4, rotate the rotating block 711 half a turn, driving the threaded rod 712 to rotate half a turn. The threaded rod 712 drives the mounting post 806 to rotate half a turn through the square block 808. The rotation of the mounting post 806 drives the rotating shaft 805 to rotate. The rotation of the rotating shaft 805 drives the second bevel gear 804 to rotate. The rotation of the second bevel gear 804 by half a turn drives the first bevel gear 803 to rotate 90 degrees. The rotation of the first bevel gear 803 drives the connecting shaft 802 to rotate. The rotation of the connecting shaft 802 drives the baffle 801 to rotate. The baffle 801 rotates 90 degrees to close the exhaust pipe 2. At the same time, the first connecting rod 710 is displaced out of the first connecting groove 709, driving the square block 808 to be displaced out of the square groove 809. The latch 810 is engaged into the mounting post 806 under the elastic force of the second spring 811 to fix the mounting post 806, preventing the baffle 801 from loosening and opening the exhaust pipe 2. When installing the top cover 4, when the square block 808 enters the square groove 809 and the latch 810 is displaced out of the mounting post 806, and when rotating the rotating block 711 to drive the fixing block 715 to be engaged into the fixing groove 716, the baffle 801 automatically rotates half a turn to open the exhaust pipe 2, facilitating the automatic closing of the exhaust pipe 2 when removing the top cover 4, preventing the exhaust pipe 2 from sucking air when replacing the filter element 5, and causing dust to enter the vacuum pump through the exhaust pipe 2.

[0027] Please refer specifically toFigures 2 to 7 At both ends of the guide groove 706, the openings are distributed at a 90-degree angle, and the positions of the two grooves 708 are consistent with the opening directions of both ends of the guide groove 706.

[0028] In this embodiment: When the motor 704 operates, it drives the rotating seat 705 to rotate. The rotation of the rotating seat 705 adjusts the position of the guide groove 706, so as to respectively perform usage operations on different filter boxes 1.

[0029] Please refer specifically to Figures 2 to 7 The outer wall of the first connecting rod 710 fits against the inner wall of the first connecting groove 709. The outer wall of the second connecting rod 718 fits against the inner wall of the second connecting groove 717. A threaded hole is formed in the outer wall of the displacement plate 713, and the threaded hole matches the threaded rod 712. One end of the outer wall of the fixing block 715 fits against the inner wall of the fixing groove 716.

[0030] In this embodiment: Insert the first connecting rod 710 into the first connecting groove 709, insert the second connecting rod 718 into the second connecting groove 717, and then rotate the rotating block 711. The rotation of the rotating block 711 drives the threaded rod 712 to rotate. The rotation of the threaded rod 712 drives the displacement plate 713 to displace. The displacement of the displacement plate 713 drives the fixing block 715 to displace through the connecting rod 714. The displacement of the fixing block 715 is inserted into the fixing groove 716 to fix the top cover 4.

[0031] Please refer specifically to Figures 2 to 7 One end of the displacement rod 721 is a semi-circular surface. The outer wall of the displacement rod 721 fits against the inner wall of the displacement groove 719. The inner wall of the insertion slot 720 fits against the outer wall of the insertion block 722.

[0032] In this embodiment: When the rotating seat 705 rotates, it drives the rotating column 707 to rotate. The rotation of the rotating column 707 drives the groove 708 to perform a displacement operation; when using one filter box 1, at this time, the opening of one groove 708 faces the corresponding displacement rod 721. At this time, the displacement rod 721 and the insertion block 722 are displaced under the elastic force of the first spring 723. One end of the displacement rod 721 is displaced into the groove 708, and the insertion block 722 is engaged into the insertion slot 720 to reinforce the top cover 4.

[0033] Please refer specifically to Figures 5 to 8 The inner wall of the square groove 809 fits against the outer wall of the square block 808. The second bevel gear 804 meshes with the first bevel gear 803. The diameter length of the second bevel gear 804 is half of the diameter length of the first bevel gear 803.

[0034] In this embodiment: Rotate the rotating block 711 half a turn, driving the threaded rod 712 to rotate half a turn. The threaded rod 712 drives the mounting column 806 to rotate half a turn through the square block 808. The rotation of the mounting column 806 drives the rotating shaft 805 to rotate. The rotation of the rotating shaft 805 drives the second bevel gear 804 to rotate. The rotation of the second bevel gear 804 by half a turn drives the first bevel gear 803 to rotate 90 degrees. The rotation of the first bevel gear 803 drives the connecting shaft 802 to rotate. The rotation of the connecting shaft 802 drives the baffle 801 to rotate. The baffle 801 rotates 90 degrees to perform a closing operation on the exhaust pipe 2.

[0035] Please refer specifically to Figures 5 to 8 , the top end of the clamping block 810 is provided with an inclined surface, the bottom end of the extrusion rod 812 is in contact with the inclined surface, and one outer wall of the clamping block 810 is fitted with the inner wall of the clamping groove 807.

[0036] In this embodiment: When the first connecting rod 710 is connected in the first connecting groove 709, the square block 808 is clamped into the square groove 809. The square block 808 pushes the extrusion rod 812 to displace. The displacement of the extrusion rod 812 pushes the clamping block 810 to displace into the mounting column 806, squeezing the second spring 811.

[0037] A vacuum pump applying a vacuum pump filter includes a pump body 9. The top end of the pump body 9 is provided with an air inlet 10. The top end of the air inlet 10 is connected to a connecting pipe 11 through a flange. The connecting pipe 11 is communicated with both exhaust pipes 2.

[0038] In this embodiment: The intake pipe 3 conveys air to the filter box 1. The filter element 5 in the filter box 1 filters the air. The filtered air then passes through the exhaust pipe 2 and the connecting pipe 11, enters the air inlet 10, and then enters the pump body 9 through the air inlet 10.

[0039] The above-mentioned is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A vacuum pump filter, characterized in that: The filter box (1) comprises two filter boxes (1), the bottom end of each filter box (1) is fixedly connected to an exhaust pipe (2), air is transported into the filter box (1) through an air intake pipe (3), a top cover (4) is installed at the top end of the filter box (1), a filter element (5) is installed in the inner cavity of the filter box (1), a sealing ring (6) is installed at the bottom end of the top cover (4), the filter element (5) is replaced by a switching mechanism (7), and when the top cover (4) is opened, the exhaust pipe (2) is automatically closed by a shielding mechanism (8); The switching mechanism (7) comprises a connecting seat (701), the connecting seat (701) being fixedly connected between the two filter boxes (1), a mounting opening (702) being provided at one end of the connecting seat (701), the air intake pipe (3) being connected to the mounting opening (702) via a flange, two transverse grooves (703) being provided on the inner wall of the connecting seat (701), both of the two transverse grooves (703) being connected to the mounting opening (702), a rotating seat (705) being rotatably connected to the interior of the connecting seat (701) at the intersection of the mounting opening (702) and the transverse groove (703), the A guide groove (706) is provided inside the rotating seat (705); a motor (704) is installed at the bottom end of the connecting seat (701); an output end of the motor (704) is connected to the rotating seat (705); a rotating column (707) is fixedly connected to the top end of the rotating seat (705); two grooves (708) are provided on the outer wall of the rotating column (707); a first connecting groove (709) and a second connecting groove (717) are respectively provided on both sides of the top end of the filter box (1); and a first connecting rod (710) and a second connecting rod (718) are respectively fixedly connected to both sides of the bottom end of the top cover (4).

2. A vacuum pump filter according to claim 1, characterized in that: The switching mechanism (7) further comprises a rotating block (711), wherein the rotating block (711) is rotatably connected to the top end of the top cover (4), the bottom end of the rotating block (711) is fixedly connected to a threaded rod (712), the outer wall of the threaded rod (712) is slidably connected to a displacement plate (713), the displacement plate (713) is slidably connected to the inside of the first connecting rod (710), one end of the displacement plate (713) is rotatably connected to a connecting rod (714), one end of the connecting rod (714) is rotatably connected to a fixed block (715), the fixed block (715) is slidably connected to the inside of the first connecting rod (710) and extends to the first connecting rod (710). The outer wall of the connecting rod (710) and the inner wall of the first connecting groove (709) are provided with a fixing groove (716); the bottom end of the second connecting rod (718) is provided with a displacement groove (719); a slot (720) is provided on the outer wall of one side of the second connecting rod (718); the interior of the filter box (1) is slidably connected with a displacement rod (721) that passes through the second connecting groove (717); one end of the displacement rod (721) extends to the outside of the filter box (1); the other end of the displacement rod (721) is fixedly connected with an insert block (722); a first spring (723) is connected between the insert block (722) and the filter box (1).

3. A vacuum pump filter according to claim 2, characterized in that: The shielding mechanism (8) comprises a baffle (801), the baffle (801) being rotatably connected to the inner wall of the exhaust pipe (2), one end of the baffle (801) being fixedly connected to a connecting shaft (802), one end of the connecting shaft (802) being fixedly connected to a first bevel gear (803), the interior of the filter box (1) being located at an outer wall of the first bevel gear (803) being rotatably connected to a second bevel gear (804), the top end of the second bevel gear (804) being fixedly connected to a rotating shaft (805), the top end of the rotating shaft (805) being fixedly connected to a mounting column (806), the mounting column (806) being rotatably connected to the bottom end of the first connecting groove (709), the interior of the filter box (1) being located at the mounting column (806), and the bottom end of the first connecting groove (709). A clamping groove (807) is provided on both sides of the mounting column (806); a square block (808) is fixedly connected to the bottom end of the threaded rod (712); the square block (808) is rotatably connected to the bottom end of the first connecting rod (710); a square groove (809) is provided at the top end of the mounting column (806); a clamping block (810) extending from the mounting column (806) is slidably connected inside the mounting column (806); a second spring (811) is connected between the clamping block (810) and the mounting column (806); an extrusion rod (812) is slidably connected inside the mounting column (806) at the top end of the clamping block (810); the extrusion rod (812) extends to the inner cavity of the square groove (809).

4. A vacuum pump filter according to claim 2, characterized in that: The openings at both ends of the guide groove (706) are distributed at ninety degrees, and the positions of the two grooves (708) are consistent with the directions of the openings at both ends of the guide groove (706).

5. A vacuum pump filter according to claim 2, characterized in that: The outer wall of the first connecting rod (710) fits with the inner wall of the first connecting groove (709), and the outer wall of the second connecting rod (718) fits with the inner wall of the second connecting groove (717).

6. A vacuum pump filter according to claim 2, characterized in that: The outer wall of the displacement plate (713) is provided with a threaded hole, the threaded hole matches the threaded rod (712), and the outer wall of one end of the fixing block (715) fits the inner wall of the fixing groove (716).

7. A vacuum pump filter according to claim 2, characterized in that: One end of the displacement rod (721) is in the form of a semicircular surface, the outer wall of the displacement rod (721) fits with the inner wall of the displacement groove (719), and the inner wall of the slot (720) fits with the outer wall of the insertion block (722).

8. A vacuum pump filter according to claim 3, characterized in that: The inner wall of the square groove (809) fits with the outer wall of the square block (808), the second bevel gear (804) meshes with the first bevel gear (803), and the diameter length of the second bevel gear (804) is half the diameter length of the first bevel gear (803).

9. A vacuum pump filter according to claim 3, characterized in that: The top end of the clamping block (810) is provided with an inclined surface, the bottom end of the squeezing rod (812) is in contact with the inclined surface, and the outer wall of one end of the clamping block (810) is in contact with the inner wall of the clamping slot (807).

10. A vacuum pump using a vacuum pump filter according to any one of claims 1 to 9, characterized in that: It comprises a pump body (9), wherein the top end of the pump body (9) is provided with an air inlet (10), the top end of the air inlet (10) is connected to a connecting pipe (11) via a flange, and the connecting pipe (11) is connected to both exhaust pipes (2).

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