Air port filter screen of laboratory air exhaust device

Abstract

The utility model relates to the technical field of exhaust equipment, in particular to an air port filter screen of a laboratory exhaust device, which comprises a frame, a protective component is arranged in the frame and comprises a first frame clamped in the frame, a protective screen basket is welded in the first frame, and the protective screen basket is welded in the first frame. A filtering assembly is arranged in the position, located on one side of the first frame, of the frame, the filtering assembly comprises an iron frame located on one side of the first frame, and a filtering net is fixed into the iron frame through bolts; a cleaning assembly is arranged in the frame; after the first frame is clamped into the frame, the iron frame is attracted and fixed through the magnet, the magnet is protected through the protective net basket, mounting and dismounting are rapid, the driving motor drives the reciprocating lead screw to rotate, the cleaning brush on one side of the side plate is pushed to move through the internal thread sliding sleeve, and the filter screen can be cleaned and scraped.

Description

TECHNICAL FIELD

[0001] The utility model relates to an exhaust equipment technical field, concretely relates to a laboratory exhaust device air port filter screen. BACKGROUND

[0002] The laboratory exhaust system is used for controlling the spread and accumulation of harmful gas, vapor or dust in the laboratory, and usually comprises an exhaust hood, an exhaust duct and an exhaust fan and other components, which can rapidly exhaust the harmful substances from the laboratory and keep the indoor air clean and safe.

[0003] The laboratory exhaust device air port filter screen in the prior art is a simple filter screen structure, which is inconvenient to install and disassemble, and does not have a cleaning structure, so the filter screen needs to be cleaned and replaced regularly. Therefore, the utility model provides a laboratory exhaust device air port filter screen, which can adsorb the filter assembly on one side of the protection assembly through a magnet, is convenient to install and disassemble, and can clean the filter screen through a cleaning brush. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a laboratory exhaust device air port filter screen, which can adsorb the filter assembly on one side of the protection assembly through a magnet, is convenient to install and disassemble, and can clean the filter screen through a cleaning brush.

[0005] The utility model solves the technical problems by adopting the technical scheme of a laboratory exhaust device air port filter screen, which comprises a frame, a protection assembly is arranged in the frame, the protection assembly comprises a first frame that is clamped in the frame, a protection net basket is welded in the first frame, a filter assembly is arranged in the frame on the side of the first frame, the filter assembly comprises an iron frame on the side of the first frame, and a filter screen is fixed in the iron frame through bolts;

[0006] A cleaning assembly is arranged in the frame, the cleaning assembly comprises a driving motor that is installed on the top of the frame through a mounting bracket and a reciprocating screw rod that is rotatably connected to the frame through a bearing, an internally threaded sleeve is arranged on the outside of the reciprocating screw rod, a side plate is fixed on one side of the internally threaded sleeve through bolts, and a cleaning brush is fixed on one side of the side plate through bolts.

[0007] By adopting the above technical scheme, the iron frame is adsorbed and fixed through a magnet after the first frame is clamped into the frame, the magnet is protected through the protection net basket, the installation and disassembly are fast, the reciprocating screw rod is driven to rotate by the driving motor, the cleaning brush on one side of the side plate is moved by the internally threaded sleeve, and the filter screen can be cleaned.

[0008] Specifically, auxiliary vertical rods are fixed on both sides of the reciprocating screw rod in the frame through bolts, a sleeve is arranged on the outside of the auxiliary vertical rod, and the sleeve is installed on one side of the side plate through a mounting bracket.

[0009] Specifically, the bottom output shaft of the driving motor is connected with the top end of the reciprocating screw rod through a connecting sleeve.

[0010] Specifically, the inner thread sliding sleeve is glued with a sealing ring on the top and bottom of the reciprocating screw rod.

[0011] Specifically, a magnet is embedded on one side of the first frame at equal distances.

[0012] Specifically, a clamping strip is welded on the inner side of the frame.

[0013] The beneficial effects of the utility model are as follows:

[0014] The iron frame and the filter screen inside the iron frame are inserted into the frame, and then the first frame is inserted into the frame through the clamping strip, the protective screen basket of the first frame and the inside thereof protects the filter assembly, the magnet can adsorb the iron frame and fix it, the filter screen is used for filtering gas.

[0015] The utility model discloses a laboratory exhaust device air port filter screen, opens driving motor and drives reciprocating screw rod rotation to push the up and down reciprocating movement of inner thread sliding sleeve, and the up and down movement of the side plate and the cleaning brush on one side of the side plate is driven by the movement of inner thread sliding sleeve, can wipe the filter screen, avoids being blocked by impurity etc. DRAWINGS

[0016] The utility model is further illustrated below in connection with the drawings and examples.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure explosion drawing of the utility model;

[0019] Figure 3 It is the cleaning assembly structure schematic diagram of the utility model;

[0020] In the drawing: 1, frame;2, protection assembly;201, first frame;202, protective screen basket;203, magnet;3, filter assembly;301, iron frame;302, filter screen;4, cleaning assembly;401, driving motor;402, reciprocating screw rod;403, inner thread sliding sleeve;404, side plate;405, cleaning brush;406, auxiliary vertical rod;407, sliding sleeve;408, sealing ring;5, clamping strip. DETAILED DESCRIPTION

[0021] In order to make the technical means, creation characteristics, achieve the purpose and effect of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] The magnet can attract the filtering assembly to one side of the protection assembly, and the cleaning brush can clean the filter screen. Figures 1-3 As shown in the utility model, a laboratory exhaust device air port filter screen is provided, which comprises a frame 1, a protection assembly 2 arranged inside the frame 1, a first frame 201 clamped inside the frame 1, a protection net basket 202 welded inside the first frame 201, a filtering assembly 3 arranged inside the frame 1 at one side of the first frame 201, an iron frame 301 arranged at one side of the first frame 201, and a filter screen 302 fixed inside the iron frame 301 through bolts.

[0023] A cleaning assembly 4 is arranged inside the frame 1, which comprises a driving motor 401 mounted on the top of the frame 1 through a mounting bracket and a reciprocating screw rod 402 rotatably connected inside the frame 1 through a bearing, an internally threaded sleeve 403 sleeved outside the reciprocating screw rod 402, a side plate 404 fixed on one side of the internally threaded sleeve 403 through bolts, and a cleaning brush 405 fixed on one side of the side plate 404 through bolts.

[0024] In use, after the first frame 201 is clamped into the frame 1, the iron frame 301 is attracted and fixed by the magnet 203, the magnet 203 is protected by the protection net basket 202, and the installation and disassembly are fast, the reciprocating screw rod 402 is driven to rotate by the driving motor 401, and the cleaning brush 405 on one side of the side plate 404 is moved by the internally threaded sleeve 403, so that the filter screen 302 can be cleaned.

[0025] As shown in the utility model, Figure 3 The utility model further comprises that the frame 1 is internally fixed on both sides of the reciprocating screw rod 402 through bolts, and an auxiliary vertical rod 406 is arranged outside the frame 1.

[0026] In use, the auxiliary vertical rod 406 and the sleeve 407 can limit the side plate 404 without affecting the up-down movement of the side plate 404.

[0027] As shown in the utility model, Figure 3 The utility model further comprises that the bottom output shaft of the driving motor 401 is connected to the top end of the reciprocating screw rod 402 through a connecting sleeve.

[0028] In use, the driving motor 401 is used for driving the reciprocating screw rod 402 to rotate.

[0029] As shown in Figure 3 The utility model also includes, the internal thread sliding sleeve 403 is located the top and bottom of reciprocating wire rod 402 outside side all glue sealing ring 408.

[0030] In use, the sealing ring 408 can prevent impurities from entering the internal thread sliding sleeve 403.

[0031] As shown in Figure 2 The utility model also includes, the first frame 201 one side equidistance embeds with magnet 203.

[0032] In use, the magnet 203 is convenient for the iron frame 301 to be adsorbed, fixed in the first frame 201 one side.

[0033] As shown in Figure 2 The utility model also includes, the frame 1 inboard welding has card strip 5.

[0034] In use, the card strip 5 is convenient for the first frame 201 to be clamped to the frame 1.

[0035] In use, personnel uses bolt to install frame 1 on the air port of laboratory exhaust device, uses power cord to connect the device with external power supply;

[0036] Iron frame 301 and filter screen 302 in it are inserted into frame 1, and then first frame 201 is inserted into frame 1 through card strip 5, and first frame 201 and protective net basket 202 in it protect filter assembly 3, magnet 203 can adsorb iron frame 301 and fix it, which is convenient for installation and disassembly, and filter screen 302 is used to filter gas.

[0037] Opening driving motor 401 drives reciprocating wire rod 402 to rotate and push internal thread sliding sleeve 403 to reciprocate up and down, and the reciprocation of internal thread sliding sleeve 403 drives side plate 404 and cleaning brush 405 on one side of side plate 404 to reciprocate up and down, which can wipe filter screen 302 to avoid being blocked by impurities and keep its filtering efficiency.

[0038] When side plate 404 reciprocates up and down, sliding sleeve 407 slides outside auxiliary vertical rod 406, which can prevent side plate 404 and internal thread sliding sleeve 403 from rotating with reciprocating wire rod 402 without affecting the reciprocation of side plate 404 and internal thread sliding sleeve 403.

[0039] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A filter screen for the air outlet of a laboratory exhaust system, characterized in that, The application relates to a protective frame, which comprises a frame (1) internally provided with a protective assembly (2), the protective assembly (2) comprising a first frame (201) clamped in the frame (1), a protective net basket (202) welded in the first frame (201), a filter assembly (3) internally arranged on one side of the first frame (201), the filter assembly (3) comprising an iron frame (301) arranged on one side of the first frame (201), and a filter screen (302) fixed in the iron frame (301) through bolts. The frame (1) is internally provided with a cleaning assembly (4), the cleaning assembly (4) comprising a driving motor (401) installed on the top of the frame (1) through a mounting frame and a reciprocating screw rod (402) rotatably connected to the inside of the frame (1) through a bearing, an internally-threaded sliding sleeve (403) sleeved outside the reciprocating screw rod (402), a side plate (404) fixed on one side of the internally-threaded sliding sleeve (403) through bolts, and a cleaning brush (405) fixed on one side of the side plate (404) through bolts.

2. A fume hood screen for a laboratory exhaust hood according to claim 1, wherein The frame (1) is internally provided with an auxiliary vertical rod (406) fixed on both sides of the reciprocating screw rod (402) through bolts, and a sliding sleeve (407) sleeved outside the auxiliary vertical rod (406) and mounted on one side of the side plate (404) through a mounting frame.

3. A fume hood screen for a laboratory exhaust hood according to claim 1, wherein The bottom output shaft of the driving motor (401) is connected to the top end of the reciprocating screw rod (402) through a connecting sleeve.

4. The fume hood screen of claim 1, wherein, The internally-threaded sliding sleeve (403) is internally provided with a sealing ring (408) on the top and the bottom outside the reciprocating screw rod (402).

5. The fume hood screen of claim 1, wherein, Magnets (203) are equidistantly arranged on one side of the first frame (201).

6. A fume hood screen for a laboratory exhaust hood according to claim 1, wherein The frame (1) is internally welded with a clamping strip (5).

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