External filtering device for vacuum pump

Abstract

The utility model relates to the technical field of vacuum pumps, and provides an external filtering device for a vacuum pump, which comprises a bottom plate and a vacuum pump main body, the vacuum pump main body is mounted on the bottom plate, a noise reduction component is arranged on the bottom plate, an external filtering component is arranged on the bottom plate, a mounting seat is arranged on the bottom plate, and a pair of slots is formed in the inner surface of the mounting seat. A filter shell is inserted into the mounting seat, and an insertion block is arranged at the bottom of the filter shell and inserted into the insertion groove. By means of the technical scheme, the problems that a large number of residual pollutants in a vacuum pump cavity in the prior art must be regularly and manually removed every month, many troubles are brought to maintenance of the vacuum pump, and the workload is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, and in particular to an external filtering device for a vacuum pump. Background Art

[0002] The air extracted by the rotary vane vacuum pump contains acidic gases. After entering the vacuum pump, it reacts chemically with the vacuum pump oil, causing the oil to become rancid and produce flocculent sediment. The oil has no fluidity and insufficient lubrication, which accelerates the wear of the vacuum pump accessories. The extracted EVA, POE and other gasified products adhere to the vacuum pump cavity and the surface of the accessories after being cooled by the oil, causing the rotary vane to get stuck and the component to be scrapped. The large amount of residual pollutants in the vacuum pump cavity must be manually removed regularly every month, which brings a lot of trouble to the maintenance of the vacuum pump and increases the workload.

[0003] Therefore, improvements are made to address the above problems. Utility Model Content

[0004] The utility model provides an external filtering device for a vacuum pump, which solves the problem in the related art that a large amount of residual pollutants in the vacuum pump cavity must be manually removed regularly every month, causing many troubles in the maintenance of the vacuum pump and increasing the workload.

[0005] The technical solution of the utility model is as follows:

[0006] A bottom plate and a vacuum pump body, wherein the vacuum pump body is mounted on the bottom plate;

[0007] A noise reduction component, wherein the noise reduction component is arranged on the bottom plate;

[0008] An external filter component is arranged on the base plate, and the external filter component includes a mounting seat, and the mounting seat is arranged on the base plate. A pair of slots are opened on the inner surface of the mounting seat, and a filter housing is inserted in the mounting seat. An insert block is arranged at the bottom of the filter housing, and the insert block is inserted in the slot.

[0009] As a further technical solution, a groove is opened in the mounting seat, a collection box is placed in the groove, the bottom of the filter housing is an open structure, the bottom of the filter housing is sleeved on the outside of the collection box, and the inner surface of the filter housing is sealed and fitted with the outer surface of the collection box.

[0010] As a further technical solution, a filter core is installed in the filter housing, and outer ring layers are provided on the top and bottom of the filter core. The outer ring layer is attached to the top of the collecting box, and a sealing cover is installed on the top of the filter housing. The sealing cover is fixedly connected to the filter housing by bolts.

[0011] As a further technical solution, a compression layer is provided on the bottom surface of the sealing cover, and the compression layer is attached to the top of the outer ring layer. A plurality of through holes are provided on the surface of the outer ring layer at the bottom of the filter element, and connecting nozzles are provided on the outer surface of the filter housing and the top of the sealing cover, and an air pipe is installed between the connecting nozzle and the vacuum pump body.

[0012] As a further technical solution, a pair of movable through cavities are opened in the mounting seat, a card slot is opened on the side end face of the insert block, a fixed frame is movably mounted inside the movable through cavity, a spring is mounted outside the fixed frame, the spring is located in the movable through cavity, and one end of the fixed frame is inserted and connected in the card slot.

[0013] As a further technical solution, the noise reduction component includes a plurality of fixing seats, which are respectively fixed on both sides of the bottom plate surface, and a shield is inserted and connected inside the fixing seat, and sound absorbing layers are provided on both opposite side surfaces of the shield.

[0014] As a further technical solution, a heat dissipation mesh is provided on the surface of one side of the shield, a plurality of fans are installed on the surface of the side of the shield, and a notch is provided on the bottom of one side of the shield.

[0015] As a further technical solution, the baffle cover is an overall door-shaped structure, and the baffle cover can be separated from the fixing seat.

[0016] As a further technical solution, a pull plate is provided at one end of the fixing frame.

[0017] The working principle and beneficial effects of the utility model are:

[0018] The utility model is provided with an external filter assembly, through the interaction of structures such as a mounting seat, a filter housing, a collecting box, a filter element, a sealing cover, a connecting nozzle and a fixing frame, the filter housing is fixed in the mounting seat through the cooperation of the fixing frame and the plug-in block, and a plug-in connection method is adopted, the loading and unloading method is simple and convenient, and maintenance operations such as replacement and cleaning of the collecting box and the filter element are convenient, and the trouble of directly cleaning the vacuum pump body can be omitted, which greatly reduces the workload, and there is no need to stop the machine for cleaning, thereby increasing the production capacity, and having a good use effect and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the axonometric drawing of the utility model;

[0022] Figure 3 This is an axonometric cross-sectional view of the utility model;

[0023] Figure 4 For the utility model Figure 3 A partial enlarged view of part A;

[0024] In the figure: 1. bottom plate; 2. vacuum pump body; 3. external filter assembly; 3-1. mounting seat; 3-2. slot; 3-3. filter housing; 3-4. plug-in block; 3-5. groove; 3-6. collection box; 3-7. filter element; 3-8. outer ring layer; 3-9. sealing cover; 3-10. compression layer; 3-11. through hole; 3-12. connecting nozzle; 3-13. air pipe; 3-14. movable through cavity; 3-15. slot; 3-16. fixing bracket; 3-17. spring; 4. noise reduction assembly; 4-1. fixing seat; 4-2. shield; 4-3. sound absorbing layer; 4-4. heat dissipation mesh; 4-5. fan; 4-6. notch; 5. pull plate. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1~Figure 4 As shown, this embodiment provides an external filtering device for a vacuum pump, comprising

[0027] A base plate 1 and a vacuum pump body 2, wherein the vacuum pump body 2 is mounted on the base plate 1;

[0028] A noise reduction component 4, wherein the noise reduction component 4 is arranged on the bottom plate 1;

[0029] An external filter assembly 3 is arranged on the base plate 1, and the external filter assembly 3 includes a mounting seat 3-1, and the mounting seat 3-1 is arranged on the base plate 1. A pair of slots 3-2 are provided on the inner surface of the mounting seat 3-1, and a filter housing 3-3 is inserted in the mounting seat 3-1. A plug-in block 3-4 is provided at the bottom of the filter housing 3-3, and the plug-in block 3-4 is inserted in the slot 3-2. A groove 3-5 is provided in the mounting seat 3-1, and a collection box 3-6 is placed in the groove 3-5. The bottom of the filter housing 3-3 is an open structure, and the bottom of the filter housing 3-3 is sleeved on the outside of the collection box 3-6. The inner surface of the filter housing 3-3 and the outer surface of the collection box 3-6 are sealed and fitted. A filter element 3-7 is installed in the filter housing 3-3, and an outer ring layer 3-8 is provided on the top and bottom of the filter element 3-7. The outer ring layer 3-8 is fitted on the top of the collection box 3-6. A sealing cover 3-9 is installed on the top of the housing 3-3, and the sealing cover 3-9 is fixedly connected to the filter housing 3-3 by bolts. A compression layer 3-10 is arranged on the bottom of the sealing cover 3-9, and the compression layer 3-10 is attached to the top of the outer ring layer 3-8. A plurality of through holes 3-11 are opened on the surface of the outer ring layer 3-8 at the bottom of the filter element 3-7. A connecting nozzle 3-12 is arranged on the outer surface of the filter housing 3-3 and the top of the sealing cover 3-9. An air pipe 3-13 is installed between the connecting nozzle 3-12 and the vacuum pump body 2, a pair of movable through cavities 3-14 are opened in the mounting seat 3-1, a card slot 3-15 is opened on the side end face of the plug block 3-4, a fixing frame 3-16 is movably sleeved and connected in the movable through cavity 3-14, a spring 3-17 is sleeved on the outside of the fixing frame 3-16, the spring 3-17 is located in the movable through cavity 3-14, and one end of the fixing frame 3-16 is inserted and connected in the card slot 3-15.

[0030] In this embodiment, in order to achieve the effect of external filtering and avoid disassembling the vacuum pump, an external filter assembly 3 is designed. A mounting seat 3-1 is provided on the bottom plate 1 and a slot 3-2 is provided. A filter housing 3-3 is installed in the mounting seat 3-1. An insert block 3-4 is provided at the bottom of the filter housing 3-3 and is inserted and connected in the slot 3-2. Movable through cavities 3-14 are provided inside both sides of the mounting seat 3-1, and a fixing frame 3-16 is movably sleeved inside. A spring 3-17 is sleeved on the fixing frame 3-16. A card slot 3-15 is provided on one side of the insert block 3-4. The fixing frame 3-16 can be pushed and inserted in the card slot 3-15 by the elastic force of the spring 3-17, so as to fix the filter housing 3-3. A groove 3-5 is also provided in the mounting seat 3-1 and a collection box 3 is installed. -6, the filter housing 3-3 is mounted on the outside of the collecting box 3-6, and a filter core 3-7 with two outer ring layers 3-8 is installed in the filter housing 3-3. The filter core 3-7 is used to filter the air. A through hole 3-11 is provided on the surface of the outer ring layer 3-8 at the bottom, and the oil and dirt on the surface of the filter core 3-7 can flow into the collecting box 3-6 through the through hole 3-11. A sealing cover 3-9 is fixedly connected to the top of the filter housing 3-3 by bolts. A connecting nozzle 3-12 is installed on the surface of the filter housing 3-3 and the top of the sealing cover 3-9. An air pipe 3-13 is connected between the connecting nozzle 3-12 and the vacuum pump for connecting the vacuum pump body 2. The air entering can be filtered through the filter core 3-7 to avoid contaminating the vacuum pump body 2. The housing can be pulled outward for easy cleaning of the filter core 3-7.

[0031] Furthermore, the noise reduction component 4 includes a plurality of fixing seats 4-1, and the fixing seats 4-1 are respectively fixed on both sides of the surface of the base plate 1, and a shield 4-2 is inserted and connected inside the fixing seat 4-1. The two opposite sides of the shield 4-2 are provided with a sound-absorbing layer 4-3, and a heat dissipation mesh 4-4 is provided on one side surface of the shield 4-2, and a plurality of fans 4-5 are installed on the side surface of the shield 4-2, and a notch 4-6 is provided on the bottom of one side of the shield 4-2.

[0032] In this embodiment, in order to achieve the effect of reducing noise and cooling during the operation of the vacuum pump, a noise reduction component 4 is designed. Two fixing seats 4-1 are arranged on both sides of the surface of the base plate 1. A shield 4-2 is installed in the fixing seat 4-1. Sound-absorbing layers 4-3 are arranged on both sides of the shield 4-2 to reduce noise. A heat dissipation mesh 4-4 is opened on the other side surface and a fan 4-5 is installed to maintain heat dissipation for the vacuum pump body 2.

[0033] Furthermore, the baffle 4-2 is a door-shaped structure as a whole, and the baffle 4-2 can be separated from the fixing seat 4-1.

[0034] In this embodiment, the door-shaped structure enables the shield 4-2 to reduce noise and dissipate heat at the same time.

[0035] Furthermore, a pull plate 5 is provided at one end of the fixing frame 3 - 16 .

[0036] In this embodiment, by installing a pull plate 5, the fixing frame 3-16 can be pulled out of the card slot 3-15 by pulling the pull plate 5.

[0037] When it is needed, the filter housing 3-3 is connected to the vacuum pump body 2 through the connecting nozzle 3-12 and the air pipe 3-13. When the vacuum pump body 2 is in operation, the air is filtered through the filter element 3-7 in the filter housing 3-3. After the oil and water inside increase, they will flow downward in a concentrated manner and enter the collection box 3-6 through the through hole 3-11. When cleaning is required, the fixing frame 3-16 can be pulled out through the pull plate 5, and the fixing frame 3-16 can be pulled out in the card slot 3-15, and then the filter housing 3-3 can be lifted up, and the collection box 3-6 and the filter element 3-7 can be taken out for cleaning. By collecting oil and water, internal accumulation can be avoided, which leads to frequent replacement of the filter element 3-7. During operation, the sound-absorbing layer 4-3 on both sides of the baffle 4-2 can be used to reduce the transmission of noise, and the surface on the other side is cooled by the heat dissipation mesh 4-4 and the fan 4-5. The baffle 4-2 can also be pulled out in the fixing seat 4-1 without using noise reduction and cooling treatment.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An external filter device for a vacuum pump, characterized in that: include A base plate (1) and a vacuum pump body (2), wherein the vacuum pump body (2) is mounted on the base plate (1); A noise reduction component (4), wherein the noise reduction component (4) is arranged on the base plate (1); An external filter assembly (3), the external filter assembly (3) being arranged on the bottom plate (1), the external filter assembly comprising a mounting seat (3-1), the mounting seat (3-1) being arranged on the bottom plate (1), a pair of slots (3-2) being provided on the inner surface of the mounting seat (3-1), a filter housing (3-3) being inserted in the mounting seat (3-1), an insert block (3-4) being arranged at the bottom of the filter housing (3-3), and the insert block (3-4) being inserted in the slot (3-2).

2. The external filter device for a vacuum pump according to claim 1, characterized in that: A groove (3-5) is provided in the mounting seat (3-1), a collection box (3-6) is placed in the groove (3-5), the bottom of the filter housing (3-3) is an open structure, the bottom of the filter housing (3-3) is sleeved on the outside of the collection box (3-6), and the inner surface of the filter housing (3-3) and the outer surface of the collection box (3-6) are sealed and fitted.

3. The external filter device for a vacuum pump according to claim 2, characterized in that: A filter core (3-7) is installed in the filter housing (3-3); outer ring layers (3-8) are provided on the top and bottom of the filter core (3-7); the outer ring layer (3-8) is attached to the top of the collection box (3-6); a sealing cover (3-9) is installed on the top of the filter housing (3-3); the sealing cover (3-9) and the filter housing (3-3) are fixedly connected by bolts.

4. The external filter device for a vacuum pump according to claim 3, characterized in that: A compression layer (3-10) is provided on the bottom surface of the sealing cover (3-9), and the compression layer (3-10) is attached to the top of the outer ring layer (3-8). A plurality of through holes (3-11) are provided on the surface of the outer ring layer (3-8) at the bottom of the filter element (3-7). A connecting nozzle (3-12) is provided on the outer surface of the filter housing (3-3) and the top of the sealing cover (3-9), and an air pipe (3-13) is installed between the connecting nozzle (3-12) and the vacuum pump body (2).

5. The external filter device for a vacuum pump according to claim 4, characterized in that: A pair of movable through cavities (3-14) are provided in the mounting seat (3-1), a clamping slot (3-15) is provided on the side end surface of the insert block (3-4), a fixing frame (3-16) is movably sleeved in the movable through cavity (3-14), a spring (3-17) is sleeved on the outside of the fixing frame (3-16), the spring (3-17) is located in the movable through cavity (3-14), and one end of the fixing frame (3-16) is inserted and connected in the clamping slot (3-15).

6. The external filter device for a vacuum pump according to claim 1, characterized in that: The noise reduction component (4) comprises a plurality of fixing seats (4-1), wherein the fixing seats (4-1) are respectively fixed to two sides of the surface of the bottom plate (1), a shield (4-2) is inserted and connected inside the fixing seats (4-1), and sound absorbing layers (4-3) are provided on two opposite sides of the shield (4-2).

7. The external filter device for a vacuum pump according to claim 6, characterized in that: A heat dissipation mesh hole (4-4) is provided on the surface of one side of the shield (4-2), a plurality of fans (4-5) are installed on the surface of the side of the shield (4-2), and a notch (4-6) is provided on the bottom of one side of the shield (4-2).

8. The external filter device for a vacuum pump according to claim 6, characterized in that: The blocking cover (4-2) is in a door-shaped structure as a whole, and the blocking cover (4-2) can be separated from the fixing seat (4-1).

9. The external filter device for a vacuum pump according to claim 5, characterized in that: A pull plate (5) is provided at one end of the fixing frame (3-16).

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