Air purification type ventilation cabinet

Abstract

The utility model relates to the technical field of ventilation cabinets, in particular to an air purification type ventilation cabinet which comprises a cabinet body, a filtering piece, a fan, a supporting assembly and a limiting assembly. The supporting assembly is arranged on the back face of the cabinet body, and one end of the supporting assembly extends to the inner side of a runner of the cabinet body and makes contact with the inner wall of the runner of the cabinet body. The plurality of filtering pieces are arranged on the inner side of one end of the supporting assembly and are positioned above the exhaust hole of the cabinet body; the limiting assembly is arranged on the back face of the cabinet body and wraps the outer side of the other end of the supporting assembly. The draught fan is arranged at the top end of the cabinet body and located above the filtering piece. According to the utility model, the plurality of filtering pieces are mounted in the supporting assembly, the supporting assembly drives the filtering pieces to be mounted in the flow channel of the cabinet body, and the supporting assembly is connected with or separated from the limiting assembly through pulling force and pushing force in the mounting process, so that the supporting assembly is convenient to disassemble and assemble, and the filtering pieces are relatively convenient and rapid to mount and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation cabinet technical field, concretely relates to a kind of clean air type ventilation cabinet. BACKGROUND

[0002] In order to prevent the various toxic and harmful gases and dust generated during experimental operation from harming laboratory personnel, the experiment is usually carried out in a clean air type ventilation cabinet, and the harmful gases and dust are adsorbed and filtered through the clean air type ventilation cabinet.

[0003] The Chinese patent document with the authorization announcement number CN214211683U discloses a clean air type ventilation cabinet, which comprises a cabinet body, an air outlet is formed in the lower left side of the cabinet body, and a fan is installed in the inside of the cabinet body corresponding to the air outlet, an activated carbon is installed on the right side of the fan, a placing table is arranged at the middle part of the cabinet body, grooves are formed at both ends of the placing table, springs are installed in the grooves of the placing table, and limit blocks are fixedly connected to the other ends of the springs, sliding plates are connected to the sides of the limit blocks away from the springs, push rods are fixedly installed at the lower ends of the sliding plates, the placing table is inserted into the two sides of the cabinet body through the sliding plates, air inlets are formed in the upper ends of the two sides of the cabinet body, a motor is fixedly installed at the upper end of the cabinet body, and a rotating rod is connected to the motor through a belt, limit plates are installed at both ends of the rotating rod, and an infrared disinfection lamp is connected to the lower end of the rotating rod through a connecting plate.

[0004] However, in the above-mentioned scheme, the activated carbon is fixedly installed in the inside of the cabinet body, and after adsorption and filtration, the activated carbon will be saturated and needs to be replaced to continue adsorption and filtration. The fixed installation mode makes it inconvenient to disassemble and replace the activated carbon. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a clean air type ventilation cabinet.

[0006] The technical scheme of the utility model: a clean air type ventilation cabinet, comprising a cabinet body, a filter, a fan, a supporting assembly and a limiting assembly.

[0007] The supporting assembly is arranged on the back of the cabinet body, and one end of the supporting assembly extends to the inside of the flow channel of the cabinet body and contacts with the inner wall of the flow channel of the cabinet body.

[0008] The number of filters is multiple, and the multiple filters are arranged on the inside of one end of the supporting assembly and above the exhaust hole of the cabinet body.

[0009] The limiting assembly is arranged on the back of the cabinet body and wrapped around the outside of the other end of the supporting assembly.

[0010] The fan is arranged at the top end of the cabinet body and above the filters.

[0011] Preferably, the supporting assembly comprises a cover plate and a connecting strip;

[0012] The cover plate covers the back of the cabinet body and extends to the inside of the flow channel of the cabinet body, and one end surface is flush with one side inner wall of the flow channel of the cabinet body;

[0013] The number of the connecting strips is multiple, and the multiple connecting strips are arranged equidistantly on the end surface of the cover plate, and the edges are connected with the inner walls of the flow channel of the cabinet body.

[0014] Preferably, the filter is located between the two connecting strips, and two supporting strips are arranged on the other side inner wall of the flow channel of the cabinet body, and the connecting strips and the filter are located between the two supporting strips.

[0015] Preferably, one side of the cover plate is provided with a protrusion, and the back of the cabinet body is provided with a mounting hole, and in the cooperation and installation state of the cabinet body and the cover plate, the protrusion is accommodated in the mounting hole.

[0016] Preferably, the edge of the protrusion is stepped, and a sealing strip is arranged at the step of the protrusion.

[0017] Preferably, the other end surface of the cover plate is provided with a mounting slot in the middle, and a handle is rotatably installed in the inside of the mounting slot.

[0018] Preferably, the limiting assembly comprises a plug, a frame and a spring;

[0019] The frame is installed at the edge of the mounting hole and wrapped outside the cover plate;

[0020] The number of the plugs is multiple, and the multiple plugs are all inserted through the frame and connected with the cover plate, and the end of the plug has an inclined surface;

[0021] The spring is sleeved outside the plug, and the two ends are connected with the frame and the plug respectively, and the spring is arranged one by one corresponding to the plug.

[0022] Preferably, the end of the plug is inserted into the insertion hole of the cover plate, and the side surface of the frame is provided with a connecting hole, and the end of the plug is inserted into the insertion hole through the connecting hole.

[0023] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0024] The utility model discloses a plurality of filter elements are installed in the supporting assembly, and the supporting assembly drives the filter element to be installed in the flow channel of the cabinet body, and in the installation process, the supporting assembly is connected or separated with the limiting assembly through the pulling force and the pushing force, so that the disassembly and assembly of the supporting assembly are convenient, and the installation and maintenance of the filter element are convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of an embodiment of the utility model.

[0026] Figure 2 A cabinet structure sectional view schematic diagram in an embodiment of the utility model is provided.

[0027] Figure 3 A supporting assembly and cabinet separation structure schematic diagram in an embodiment of the utility model is provided.

[0028] Figure 4 A supporting assembly structure schematic diagram in an embodiment of the utility model is provided.

[0029] Figure 5 A limiting assembly structure schematic diagram in an embodiment of the utility model is provided.

[0030] Reference Signs: 1, cabinet; 2, bolt; 3, frame; 4, cover plate; 5, handle; 6, connecting strip; 7, filter; 8, support strip; 9, mounting hole; 10, fan; 11, mounting groove; 12, protruding block; 13, insertion hole; 14, sealing strip; 15, spring; 16, connecting hole. DETAILED DESCRIPTION

[0031] Embodiment One

[0032] As Figures 1-5 shown, the utility model provides a kind of ventilation cabinet of clean gas, including cabinet 1, filter 7, fan 10, supporting assembly and limiting assembly;

[0033] Supporting assembly is arranged at the back of cabinet 1, and one end of supporting assembly extends to the inner side of the flow passage of cabinet 1 and contacts with the inner wall of the flow passage of cabinet 1, wherein, supporting assembly is sealingly connected with cabinet 1.

[0034] The number of filter 7 has multiple, and multiple filter 7 are all arranged at the inner side of one end of supporting assembly and located above the exhaust hole of cabinet 1;Filter 7 is activated carbon or activated carbon after being treated by medicament;

[0035] Limiting assembly is arranged at the back of cabinet 1 and wrapped at the outer side of the other end of supporting assembly.

[0036] Fan 10 is arranged at the top end of cabinet 1 and located above filter 7, for when using, fan 10 makes the air inside cabinet 1 flow from exhaust hole to filter 7 and is discharged to the outside after being filtered.

[0037] In the embodiment, the plurality of filter pieces 7 are installed in the supporting assembly, the supporting assembly is combined with the back of the cabinet 1, the filter pieces 7 are inserted into the inside of the flow channel of the cabinet 1, the positions of the filter pieces 7 are located above the exhaust holes of the cabinet 1, the supporting assembly is limited by the limiting assembly, the supporting assembly is sealingly connected with the cabinet 1, when the inside of the flow channel of the cabinet 1 generates negative pressure by the fan 10, the gas in the inside of the cabinet 1 enters the flow channel through the exhaust holes and moves to the fan 10 through the filter pieces 7, the gas is filtered, and the gas is discharged to the outside by the fan 10.

[0038] Embodiment two

[0039] As Figures 3-4 shown, the utility model provides a kind of ventilation cabinet of clean gas, compared with embodiment one, in the embodiment, supporting assembly includes cover plate 4 and connecting strip 6;

[0040] Cover plate 4 is combined with the back of cabinet 1 and extends to the inside of the flow channel of cabinet 1, and one side end surface is flush with the inside wall of the flow channel of cabinet 1.

[0041] The number of connecting strip 6 has multiple, multiple connecting strip 6 is equidistantly arranged at the end surface of cover plate 4, and edge is connected with the inner wall of the flow channel of cabinet 1.

[0042] In an alternative embodiment, filter piece 7 is located between two connecting strips 6, the other side inner wall of the flow channel of cabinet 1 is provided with two support strips 8, connecting strip 6 and filter piece 7 are located between two support strips 8, wherein the edge of filter piece 7 is connected with the edge of connecting strip 6, the edge of connecting strip 6 is connected with support strip 8, for connecting strip 6 and filter piece 7 sealingly connected when multiple filter pieces 7 are inserted between multiple connecting strips 6, connecting strip 6 and support strip 8 are sealingly connected when cover plate 4 drives connecting strip 6 to be inserted between two support strips 8, to avoid the situation that air leaks at the edge of filter piece 7, wherein support strip 8 and connecting strip 6 and filter piece 7 and connecting strip 6 can be filled with sealing strip or sealing pad during use, to improve the sealing effect of the edge of filter piece 7.

[0043] In an alternative embodiment, the other side end surface of cover plate 4 is provided with mounting slot 11, handle 5 is rotatably installed in the inside of mounting slot 11.

[0044] In the embodiment, multiple filter pieces 7 are placed between multiple connecting strips 6, and filter piece 7 is sealingly connected with connecting strip 6, cover plate 4 drives connecting strip 6 to be inserted in two support strips 8, so that filter piece 7 is installed in the inside of the flow channel of cabinet 1, and cover plate 4 is fixed by limiting assembly, and cover plate 4 is pulled by the cooperation of mounting slot 11 and handle 5, so that the installation and maintenance of filter piece 7 are more flexible and convenient.

[0045] Embodiment three

[0046] As Figure 4 shown, compared with embodiment two, in the embodiment, one side of the cover plate 4 is provided with a protruding block 12, and the back of the cabinet body 1 is provided with a mounting hole 9, in the cooperating and mounting state of the cabinet body 1 and the cover plate 4, the protruding block 12 is accommodated in the mounting hole 9.

[0047] In an optional embodiment, the edge of the protruding block 12 is stepped, and the step of the protruding block 12 is provided with a sealing strip 14.

[0048] In the embodiment, the protruding block 12 is accommodated in the mounting hole 9 by the cover plate 4, so that the protruding block 12 and the mounting hole 9 are cooperatively used, a good sealing effect is provided, gas leakage is prevented, and the sealing performance of the fume hood is further improved through the stepped edge of the protruding block 12 and the sealing strip 14.

[0049] Embodiment four

[0050] As Figure 5 shown, compared with embodiment one, in the embodiment, the limiting assembly comprises a bolt 2, a frame 3 and a spring 15;

[0051] The frame 3 is installed at the edge of the mounting hole 9 and wrapped outside the cover plate 4;

[0052] The number of the bolts 2 is multiple, the multiple bolts 2 are all inserted in the cover plate 4 through the frame 3, and the end of the bolt 2 has an inclined surface;

[0053] The spring 15 is sleeved outside the bolt 2, and the two ends are respectively fixedly connected with the frame 3 and rotationally connected with the bolt 2, so that the bolt 2 can rotate in the spring 15 in use, and the angle of the inclined surface of the end of the bolt 2 is adjusted, wherein the spring 15 and the bolt 2 are one-to-one correspondingly arranged.

[0054] In an optional embodiment, the end of the cover plate 4 is provided with a insertion hole 13, the side of the frame 3 is provided with a connecting hole 16, and the end of the bolt 2 is inserted in the insertion hole 13 through the connecting hole 16.

[0055] In the embodiment, the end of the plug 2 is moved from the connecting hole 16 to the insertion hole 13 by the elastic force of the spring 15, the end of the plug 2 is inserted into the insertion hole 13, the plug 2 fixes the cover plate 4 to the inner side of the frame 3, the end of the plug 2 has an inclined surface, the plug 2 is rotated to make the inclined surface of the plug 2 face the cabinet 1, the cover plate 4 is pulled by the handle 5, the edge of the insertion hole 13 contacts the inclined surface of the end of the plug 2 and generates a force, the end of the plug 2 is slid out of the insertion hole 13, the handle 5 drives the cover plate 4 to separate the insertion hole 13 from the plug 2, and the cover plate 4 is separated from the cabinet 1, so that the filter 7 is convenient to disassemble and assemble.

[0056] In the embodiment, the filter 7 is placed between the plurality of connecting strips 6, and the filter 7 is sealingly connected with the connecting strips 6, the cover plate 4 drives the connecting strips 6 to be inserted into the two supporting strips 8 through the protruding block 12, the filter 7 is installed on the inner side of the flow channel of the cabinet 1 and located behind the air outlet hole of the cabinet 1, the cover plate 4 is covered on the mounting hole 9, the protruding block 12 is inserted into the mounting hole 9, and the sealing strip 14 is used to seal the connection, in the process of moving the cover plate 4 to the mounting hole 9, the cover plate 4 drives the end of the plug 2 to move into the connecting hole 16 through the inclined surface of the protruding block 12, and the plug 2 drives the handle 5 to extend, when the insertion hole 13 and the connecting hole 16 are coaxial, the end of the plug 2 is moved from the connecting hole 16 to the insertion hole 13 by the elastic force of the spring 15, the end of the plug 2 is inserted into the insertion hole 13, the plug 2 fixes the cover plate 4 to the inner side of the frame 3, the end of the plug 2 has an inclined surface, the plug 2 is rotated to make the inclined surface of the plug 2 face the cabinet 1, the cover plate 4 is pulled by the handle 5, the edge of the insertion hole 13 contacts the inclined surface of the end of the plug 2 and generates a force, the end of the plug 2 is slid out of the insertion hole 13, the handle 5 drives the cover plate 4 to separate the insertion hole 13 from the plug 2, and the cover plate 4 is separated from the cabinet 1, so that the filter 7 is convenient to disassemble and assemble and maintain, when the flow channel of the cabinet 1 generates a negative pressure through the fan 10, the gas on the inner side of the cabinet 1 enters the flow channel through the air outlet hole, and moves to the fan 10 through the filter 7, so that the gas is filtered, and the filtered gas is discharged to the outer side of the cabinet 1 by the fan 10.

[0057] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the persons skilled in the art without departing from the purpose of the utility model.

Claims

1. A fume hood of the clean air type, characterized in that The cabinet (1), the filter (7), the fan (10), the support assembly and the limiting assembly are included. The support assembly is arranged on the back of the cabinet (1), and one end of the support assembly extends to the inner side of the flow channel of the cabinet (1) and is in contact with the inner wall of the flow channel of the cabinet (1). The filter (7) has a plurality of numbers, and the plurality of filters (7) are arranged on the inner side of one end of the support assembly and above the exhaust hole of the cabinet (1). The limiting assembly is arranged on the back of the cabinet (1) and wrapped on the outer side of the other end of the support assembly. The fan (10) is arranged on the top end of the cabinet (1) and above the filter (7).

2. A fume hood of the type defined by claim 1, characterized in that The support assembly includes a cover plate (4) and a connecting strip (6). The cover plate (4) is arranged on the back of the cabinet (1) and extends to the inner side of the flow channel of the cabinet (1), and one side end surface is flush with one side inner wall of the flow channel of the cabinet (1). The connecting strip (6) has a plurality of numbers, and the plurality of connecting strips (6) are arranged equidistantly on the end surface of the cover plate (4), and the edges are connected with the inner wall of the flow channel of the cabinet (1).

3. A fume hood of the clean air type according to claim 2, characterized in that The filter (7) is located between two connecting strips (6), and two supporting strips (8) are arranged on the other side inner wall of the flow channel of the cabinet (1), and the connecting strip (6) and the filter (7) are located between the two supporting strips (8).

4. A fume hood of the clean air type according to claim 2, characterized in that One side of the cover plate (4) is provided with a protrusion (12), and the back of the cabinet (1) is provided with a mounting hole (9), and in the cooperating and mounting state of the cabinet (1) and the cover plate (4), the protrusion (12) is matched and accommodated in the mounting hole (9).

5. A fume hood of the clean air type according to claim 4, characterized in that The edge of the protrusion (12) is stepped, and the step of the protrusion (12) is provided with a sealing strip (14).

6. A fume hood of the clean air type according to claim 4, wherein The other side end surface of the cover plate (4) is provided with a mounting slot (11), and a handle (5) is rotatably installed on the inner side of the mounting slot (11).

7. A fume hood of the type defined above, in which The limiting assembly includes a latch (2), a frame (3) and a spring (15). The frame (3) is installed at the edge of the mounting hole (9) and wrapped on the outer side of the cover plate (4). The latch (2) has a plurality of numbers, and the plurality of latches (2) are all inserted into the cover plate (4) through the frame (3), and the end of the latch (2) has an inclined surface. The spring (15) is sleeved on the outer side of the latch (2), and the two ends are connected with the frame (3) and the latch (2) respectively, and the spring (15) and the latch (2) are arranged one by one.

8. A fume hood of the type defined by claim 7, characterized in that The end of the latch (2) is inserted into the insertion hole (13) through the connecting hole (16) of the frame (3).

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