Air inlet filter for vacuum pump

Abstract

The utility model is applicable to the technical field of vacuum pump filtration, and provides an air inlet filter for a vacuum pump, which comprises a filter box body, an air outlet pipe is fixedly mounted on the side surface of the filter box body, a ventilation slot is formed in the inner wall, close to the air outlet pipe, of the filter box body, and a filter screen for filtering air is fixedly mounted in the ventilation slot. Two sealing baffles for sealing the interior of the filtering box body are arranged in the filtering box body, two rotating shafts are fixedly arranged on the opposite sides of the two sealing baffles in a sleeving mode, the rear ends of the two rotating shafts are rotationally connected with the inner wall of the rear side of the filtering box body, and the front ends of the two rotating shafts rotationally penetrate out of the front face of the filtering box body; according to the device, dust in the filtering box body can be cleaned in the using process of the vacuum pump, the practicability of the filter is improved, meanwhile, the filter does not need to be dismantled, the interior of the filter does not need to be cleaned, and the working intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum pump filtering technical field more specifically, it relates to a kind of air intake filter for vacuum pump. BACKGROUND

[0002] Oil-injected screw vacuum pump in the process of use, gas in air or there are a large number of impurities in pipeline, to improve the service life of vacuum pump, therefore need to use air intake filter for vacuum pump.

[0003] If the relevant patent CN218794865U is searched, an air intake filter for oil-injected screw vacuum pump is disclosed, which moves the moving block along the annular track by rotating the rotating ring, compresses the return spring, and moves the disassembly strip along the surface of the clamping block during the movement of the rotating ring. With the movement of the disassembly strip, the clamping block is extruded into the inside of the mounting rod, so that the mounting rod can be pulled out from the inside of the mounting ring, so that the cover plate and the filter box are separated, so that the filter box and the filter element are cleaned.

[0004] However, the inventor believes that the prior art has the following problems and disadvantages: the prior art needs to remove the cover plate to clean the inside of the filter box, so it can only be cleaned when the vacuum pump stops running. If the vacuum pump runs for a long time, the inside of the filter box cannot be cleaned, which leads to more and more dust in the filter box. The method of removing the cover plate to clean the dust is complex and increases the work intensity of the workers. To solve the above problems, the inventor designs an air intake filter for vacuum pump. UTILITY MODEL CONTENT

[0005] To overcome the shortcomings of the prior art, the utility model aims to provide an air intake filter for vacuum pump, which can clean the dust in the filter box during the use of the vacuum pump, improve the practicability of the filter, and does not need to remove and clean the inside of the filter, reducing the work intensity of the workers.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model relates to a kind of air intake filter for vacuum pump, including filter box, the left surface of the filter box is fixedly connected with the air inlet pipe being communicated with its inside, the side surface of the filter box is fixedly installed with air outlet pipe, the inner wall of the filter box is close to air outlet pipe and is equipped with ventilation slot, the air outlet pipe is communicated with ventilation slot, filter screen for air filtration is fixedly installed in ventilation slot, the back of the filter box is equipped with cleaning assembly for cleaning the surface dust of filter screen, the filter box is equipped with two sealing baffles for sealing the inside of filter box, two the sealing baffles are located in the downside of filter screen, the opposite side of two sealing baffles is fixedly sleeved with two rotating shafts, the rear end of two rotating shafts is rotatably connected with the back inner wall of filter box, and front end is rotatably penetrated out of the front of filter box, and one end of rotating shaft located outside filter box is equipped with transmission assembly for controlling the rotation of sealing baffle.

[0008] The utility model further sets up: the cleaning assembly includes electric push rod, the electric push rod is fixedly installed on the back of filter box, the front end of electric push rod telescopic rod is slidably penetrated into filter box, the front end of electric push rod telescopic rod is fixedly connected with connecting plate, the side close to filter screen of connecting plate is fixedly installed with cleaning brush being contacted with the surface of filter screen.

[0009] The utility model further sets up: the front of filter box is equipped with drawer, the rear side of drawer is slidably penetrated into filter box, and is slid with filter box bottom wall, the front side of drawer is fixedly installed with external plate.

[0010] The utility model further sets up: the transmission assembly includes two gears, two the gears are fixedly sleeved on the outer surface of two rotating shafts located in one end of filter box, and two the gears are engaged with bidirectional rack.

[0011] The utility model further sets up: the front of filter box is fixedly connected with two mounting plates being parallel, two the mounting plates are fixedly connected with slide bar, the outer surface of slide bar is slidably sleeved with bidirectional rack, and the upper surface of bidirectional rack is fixedly connected with spring between upper mounting plate.

[0012] The utility model further sets up: the lower surface of bidirectional rack is fixedly connected with contact rod, the upper surface of external plate is fixedly connected with push block, the shape of push block is right trapezoidal, the lower end of contact rod is contacted with the inclined surface of push block, and slides.

[0013] The utility model further sets up: filter screen is flush with filter box side wall.

[0014] The utility model further sets up: the outer surface of two sealing baffles is equipped with sealing rubber pad.

[0015] The utility model discloses a filter for vacuum pump has the advantages of the following: through transmission assembly can be in the process of vacuum pump use to the dust cleaning in filter box, has improved the practicability of the filter, and also need not remove the filter and clean its inside, reduced the working strength of staff. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic drawing of the utility model vacuum pump intake filter;

[0017] Figure 2 It is the cross section schematic drawing of the utility model filter box;

[0018] Figure 3 It is the structure schematic drawing of the utility model cleaning assembly;

[0019] Figure 4 It is Figure 1 The enlarged view of A in the middle.

[0020] In the drawing: 1, filter box;2, intake pipe;3, outlet pipe;4, ventilation groove;5, filter screen;6, cleaning assembly;601, electric push rod;602, connecting plate;603, cleaning brush;

[0021] 7, rotating shaft;8, sealing baffle;9, transmission assembly;901, gear;902, bidirectional rack;903, mounting plate;904, sliding rod;905, spring;906, push block;907, contact rod

[0022] 10, drawer;11, external plate. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-4 The utility model provides the following technical scheme:

[0024] Specifically refers to a kind of intake filter for vacuum pump, including filter box 1, the left side surface of filter box 1 is fixedly connected with the intake pipe 2 that is communicated with its interior, filter box 1 is fixedly installed with outlet pipe 3 in side, outlet pipe 3 is connected with the input port of vacuum pump, ventilation groove 4 is set up on the inner wall of filter box 1 close to outlet pipe 3, outlet pipe 3 is communicated with ventilation groove 4, filter screen 5 for air filtration is fixedly installed in ventilation groove 4, and filter screen 5 is flush with filter box 1 side wall, when using, external air is entered into filter box 1 by intake pipe 2, passes through filter screen 5, filter screen 5 filters most of the impurities in air, and filtered impurities are finally delivered to vacuum pump by outlet pipe 3.

[0025] Specifically, the back of the filter box 1 is provided with a cleaning assembly 6 for cleaning the surface dust of the filter screen 5, the cleaning assembly 6 comprises an electric push rod 601, the electric push rod 601 is fixedly installed on the back of the filter box 1, the front end of the telescopic rod of the electric push rod 601 is slidably penetrated into the filter box 1, the front end of the telescopic rod of the electric push rod 601 is fixedly connected with a connecting plate 602, the connecting plate 602 is fixedly installed with a cleaning brush 603 in contact with the surface of the filter screen 5 on the side close to the filter screen 5, the cleaning brush 603 can brush off the dust attached to the filter screen 5 to the bottom of the filter box 1 by driving the connecting plate 602 to move back and forth in the filter box 1, so as to avoid the problem of clogging of the mesh caused by too much dust attached to the filter screen 5.

[0026] Specifically, the front of the filter box 1 is provided with a drawer 10, the rear side of the drawer 10 is slidably penetrated into the filter box 1 and slides with the bottom wall of the filter box 1, the front side of the drawer 10 is fixedly installed with an external plate 11, so that the dust brushed off by the cleaning assembly 6 can finally fall into the drawer 10, which facilitates dust collection.

[0027] Specifically, two sealing baffles 8 are arranged in the filter box 1 to seal the inside of the filter box 1, and the two sealing baffles 8 are arranged on the lower side of the filter screen 5, two rotating shafts 7 are fixedly sleeved on the opposite sides of the two sealing baffles 8, the rear ends of the two rotating shafts 7 are rotatably connected with the inner wall of the rear side of the filter box 1, and the front ends are rotatably penetrated out of the front of the filter box 1, one end of the rotating shaft 7 located outside the filter box 1 is provided with a transmission assembly 9 for controlling the rotation of the sealing baffle 8 of the drawer 10, so that when the drawer 10 is slid into the filter box 1, the transmission assembly 9 controls the two sealing baffles 8 to rotate upward by ninety degrees, so as not to block the inside of the filter box 1, so that the dust brushed off by the cleaning assembly 6 can fall into the drawer 10, when the drawer 10 is pulled out, the transmission assembly 9 controls the two sealing baffles 8 to rotate downward by ninety degrees, so as to seal the filter box 1 again, the above-mentioned transmission assembly 9 can clean the dust in the filter box 1 during the use of the vacuum pump, improve the practicability of the filter, and at the same time, the filter does not need to be disassembled and cleaned, which reduces the work intensity of the workers.

[0028] Specifically, the transmission assembly 9 comprises two gears 901, the two gears 901 are fixedly sleeved on the outer surfaces of the two shafts 7 located at one end outside the filter box 1, a bidirectional rack 902 is connected between the two gears 901 in meshing mode, two upper and lower parallel mounting plates 903 are fixedly connected to the front surface of the filter box 1, a sliding rod 904 is fixedly connected between the two mounting plates 903, the bidirectional rack 902 is slidably sleeved on the outer surface of the sliding rod 904, a spring 905 is fixedly connected between the upper surface of the bidirectional rack 902 and the upper mounting plate 903, so that when the spring 905 is not extruded, the spring 905 will form a pushing force on the bidirectional rack 902, so that the initial position of the bidirectional rack 902 is in contact with the bottom mounting plate 903, and meanwhile the two sealing baffle plates 8 are sealed to the inside of the filter box 1.

[0029] Specifically, the lower surface of the bidirectional rack 902 is fixedly connected with a contact rod 907, the upper surface of the external plate 11 is fixedly connected with a pushing block 906, the pushing block 906 is in the shape of a right trapezoid, the lower end of the contact rod 907 is in contact with the inclined surface of the pushing block 906 and slides, so that when the pushing drawer 10 is displaced into the filter box 1, the inclined surface of the pushing block 906 is in contact with the contact rod 907 and forms an upward pushing force on the contact rod 907, so that the bidirectional rack 902 is upwardly displaced, thereby driving the two gears 901 to rotate in opposite directions, and meanwhile the spring 905 is compressed.

[0030] The working principle of the air inlet filter for the vacuum pump is as follows: when the pushing drawer 10 is displaced into the filter box 1, the inclined surface of the pushing block 906 is in contact with the contact rod 907 and forms an upward pushing force on the contact rod 907, so that the bidirectional rack 902 is upwardly displaced, thereby driving the two gears 901 to rotate in opposite directions, and meanwhile the spring 905 is compressed, so that the two sealing baffle plates 8 are upwardly rotated by ninety degrees and no longer shield the inside of the filter box 1.

Claims

1. An air inlet filter for a vacuum pump, comprising a filter box (1), a left side surface of the filter box (1) is fixedly connected with an air inlet pipe (2) in communication with the inside of the filter box (1), and a gas outlet pipe (3) is fixedly installed on the side surface of the filter box (1), characterized in that: The filter box (1) is provided with a ventilation groove (4) on the inner wall close to the air outlet pipe (3), the air outlet pipe (3) is communicated with the ventilation groove (4), the filter screen (5) for air filtration is fixedly installed in the ventilation groove (4), the back of the filter box (1) is provided with a cleaning assembly (6) for cleaning the surface dust of the filter screen (5), the filter box (1) is provided with two sealing baffles (8) for sealing the inside of the filter box (1), the two sealing baffles (8) are arranged on the lower side of the filter screen (5), two sealing baffles (8) are fixedly sleeved with two rotating shafts (7) on the opposite side, the rear end of the two rotating shafts (7) is rotatably connected with the inner wall of the back of the filter box (1), and the front end is rotatably penetrated through the front of the filter box (1), and the end of the rotating shaft (7) outside the filter box (1) is provided with a transmission assembly (9) for controlling the rotation of the sealing baffle (8).

2. A gas inlet filter for a vacuum pump according to claim 1, characterized in that: The cleaning assembly (6) comprises an electric push rod (601), the electric push rod (601) is fixedly installed on the back of the filter box (1), the front end of the telescopic rod of the electric push rod (601) is slidably penetrated into the filter box (1), the front end of the telescopic rod of the electric push rod (601) is fixedly connected with a connecting plate (602), and the connecting plate (602) is fixedly installed on the side close to the filter screen (5) and is in contact with the surface of the filter screen (5).

3. A gas inlet filter for a vacuum pump according to claim 1, characterized in that: The front of the filter box (1) is provided with a drawer (10), the rear side of the drawer (10) is slidably penetrated into the filter box (1) and is slidably connected with the bottom wall of the filter box (1), and the front side of the drawer (10) is fixedly installed with an external plate (11).

4. A gas inlet filter for a vacuum pump according to claim 3, characterized in that: The transmission assembly (9) comprises two gears (901), the two gears (901) are fixedly sleeved on the outer surfaces of the two rotating shafts (7) located at one end outside the filter box (1), and the two gears (901) are engaged with a bidirectional rack (902).

5. A gas inlet filter for a vacuum pump according to claim 4, characterized in that: The front of the filter box (1) is fixedly connected with two mounting plates (903) parallel to each other, the two mounting plates (903) are fixedly connected with a sliding rod (904), the bidirectional rack (902) is slidably sleeved on the outer surface of the sliding rod (904), and the upper surface of the bidirectional rack (902) is fixedly connected with a spring (905) between the upper mounting plate (903).

6. A gas inlet filter for a vacuum pump according to claim 5, characterized in that: The lower surface of the bidirectional rack (902) is fixedly connected with a contact rod (907), the upper surface of the external plate (11) is fixedly connected with a push block (906), the shape of the push block (906) is a right trapezoidal shape, the lower end of the contact rod (907) is in contact with the inclined surface of the push block (906) and slides.

7. A gas inlet filter for a vacuum pump according to claim 1, characterized in that: The filter screen (5) is flush with the side wall of the filter box (1).

8. A gas inlet filter for a vacuum pump according to claim 7, characterized in that: The outer surfaces of the two sealing baffles (8) are provided with sealing rubber pads.

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