Ventilation cabinet exhaust device

Abstract

The utility model discloses a fume hood exhaust device which comprises a fume hood, the right side of the bottom in the fume hood is fixedly connected with exhaust equipment, the output end of the exhaust equipment is communicated with an exhaust pipe, and the output end of the exhaust pipe is communicated with the top in the fume hood. The screw rod is rotated, the screw rod drives the U-shaped plate to move upwards, the U-shaped plate drives the clamping plate to move upwards, the clamping plate is guided by the cylinder, the cylinder rotates towards the side away from the sealing plate, meanwhile, the clamping plate is separated from the sealing plate, when the sealing plate is not fixed, the sealing plate is moved upwards, the sealing plate drives the purification filter screen to move upwards, and the purification filter screen is taken down. When a new purification filter screen is installed, installation can be completed through reverse operation of the disassembling steps, the advantage of efficient use is achieved, when the purification assembly of the ventilation cabinet exhaust device is externally arranged and the purification filter screen of the purification assembly needs to be replaced, the purification assembly can be directly disassembled, and the maintenance efficiency of the purification assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to an exhaust device for a fume hood. Background Art

[0002] Fume hoods are required during chemical reagent experiments. The purification components of traditional fume hood exhaust devices are all built-in. When the purification filter of the purification component needs to be replaced, the fume hood needs to be opened, and then the purification component is opened to remove the purification filter. During this period, two processes need to be opened, which reduces the maintenance efficiency of the purification component.

[0003] Therefore, it is necessary to design and modify the exhaust device of the fume hood to effectively prevent the phenomenon of slow maintenance. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a fume hood exhaust device, which has the advantage of efficient use and solves the problem that the purification components of the fume hood exhaust device are all built-in. When the purification filter of the purification component needs to be replaced, the fume hood needs to be opened, and then the purification component needs to be opened to take out the purification filter. During this period, two processes need to be opened, which reduces the maintenance efficiency of the purification component.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fume hood exhaust device, comprising a fume hood, an exhaust device is fixedly connected to the right side of the bottom of the fume hood, the output end of the exhaust device is connected to an exhaust pipe, the output end of the exhaust pipe is connected to the top of the fume hood, the input end of the exhaust pipe is connected to a box, the box is connected to the exhaust device, a sealing plate is provided on the top of the box, a purification filter is fixedly connected to the bottom of the sealing plate, the purification filter is located inside the box, and fixing mechanisms are fixedly connected on both sides of the box.

[0006] As a preferred embodiment of the utility model, the fixing mechanism includes a box body, which is fixedly connected to both sides of the box body, and the top of the inside of the box body is fixedly connected to a cylinder, and the surface of the cylinder is sleeved with a clamping plate, the top of the clamping plate contacts the surface of the sealing plate, and the bottom of the clamping plate is hinged with a U-shaped plate through a pin shaft, and the bottom of the U-shaped plate is movably connected with a screw, the bottom of the screw penetrates to the bottom of the box body, and the surface of the screw is threadedly connected to the surface of the box body.

[0007] As a preferred embodiment of the present invention, a handle is fixedly connected to the top of the sealing plate, the handle is in a U-shape, and the handle is located on the top of the purification filter.

[0008] As a preferred embodiment of the present invention, both sides of the top of the sealing plate are fixedly connected with limiting blocks, the inner wall of the limiting blocks is in contact with the surface of the clamping plate, and the limiting blocks are in a U-shape.

[0009] As a preferred embodiment of the utility model, the front and rear sides of the inner wall of the box body are fixedly connected with fixing strips, both sides of the bottom of the fixing strips are fixedly connected with sliding rods, the bottom of the sliding rods passes through the bottom of the U-shaped plate, and the bottom of the sliding rods is fixedly connected to the bottom of the inner wall of the box body.

[0010] As a preferred embodiment of the present invention, a threaded sleeve is threadedly connected to the surface of the screw rod, the top of the threaded sleeve is fixedly connected to the bottom of the box body, and the shape of the threaded sleeve is circular.

[0011] As a preferred embodiment of the present invention, a knob is fixedly connected to the bottom of the screw rod, the knob is located on both sides of the box body, and the knob is circular in shape.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model rotates the screw, the screw drives the U-shaped plate to move upward, the U-shaped plate drives the card plate to move upward, the card plate is guided by the cylinder, the cylinder rotates to the side away from the sealing plate, and the card plate is separated from the sealing plate. When the sealing plate loses its fixation, the sealing plate is moved upward, and the sealing plate drives the purification filter to move upward. The purification filter is removed, and when a new purification filter is installed, the above-mentioned disassembly steps can be reversed to complete the installation. It has the advantage of efficient use. The purification component of the exhaust device of the fume hood is external. When the purification filter of the purification component needs to be replaced, it can be directly disassembled, which improves the maintenance efficiency of the purification component.

[0014] 2. The utility model can fix the sealing plate by providing a fixing mechanism, thereby preventing the sealing plate from loosening during use, causing the purification filter to loosen, and improving the sealing effect of the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the fume hood of the utility model;

[0017] Figure 3 A three-dimensional diagram of the exhaust device of the utility model;

[0018] Figure 4 It is a three-dimensional cross-sectional view of the box body of the utility model;

[0019] Figure 5 It is a three-dimensional cross-sectional view of the box body of the utility model.

[0020] In the figure: 1. fume hood; 2. exhaust equipment; 3. exhaust pipe; 4. box body; 5. sealing plate; 6. purification filter; 7. fixing mechanism; 71. box body; 72. cylinder; 73. clamping plate; 74. U-shaped plate; 75. screw; 8. handle; 9. limit block; 10. fixing strip; 11. screw sleeve; 12. knob; 13. slide rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in 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 in 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.

[0022] like Figures 1 to 5 As shown, the utility model provides a fume hood exhaust device, including a fume hood 1, an exhaust device 2 is fixedly connected to the right side of the bottom of the fume hood 1, the output end of the exhaust device 2 is connected to an exhaust pipe 3, the output end of the exhaust pipe 3 is connected to the top of the fume hood 1, the input end of the exhaust pipe 3 is connected to a box 4, the box 4 is connected to the exhaust device 2, a sealing plate 5 is provided on the top of the box 4, a purification filter 6 is fixedly connected to the bottom of the sealing plate 5, the purification filter 6 is located inside the box 4, and fixing mechanisms 7 are fixedly connected on both sides of the box 4.

[0023] refer to Figure 5 The fixing mechanism 7 includes a box body 71, which is fixedly connected to both sides of the box body 4. A cylinder 72 is fixedly connected to the top of the box body 71. A clamping plate 73 is sleeved on the surface of the cylinder 72. The top of the clamping plate 73 contacts the surface of the sealing plate 5. The bottom of the clamping plate 73 is hinged with a U-shaped plate 74 through a pin shaft. The bottom of the U-shaped plate 74 is movably connected with a screw 75. The bottom of the screw 75 penetrates to the bottom of the box body 71, and the surface of the screw 75 is threadedly connected to the surface of the box body 71.

[0024] As a technical optimization solution of the utility model, by setting a fixing mechanism 7, the sealing plate 5 can be fixed to prevent the sealing plate 5 from loosening during use, causing the purification filter 6 to loosen, thereby improving the sealing effect of the sealing plate 5.

[0025] refer to Figure 4 A handle 8 is fixedly connected to the top of the sealing plate 5 . The handle 8 is U-shaped and is located on the top of the purification filter 6 .

[0026] As a technical optimization solution of the present invention, by providing a handle 8, it is convenient for the user to pull the sealing plate 5 to move, avoiding the sealing plate 5 being difficult to pull and making it difficult to remove the sealing plate 5, thereby improving the use efficiency of the sealing plate 5.

[0027] refer to Figure 5 Both sides of the top of the sealing plate 5 are fixedly connected with limiting blocks 9, the inner wall of the limiting block 9 contacts the surface of the clamping plate 73, and the shape of the limiting block 9 is U-shaped.

[0028] As a technical optimization solution of the utility model, by setting a limit block 9, the card plate 73 can be limited to avoid shaking during the use of the card plate 73, which makes it difficult for the card plate 73 to be tightly clamped with the sealing plate 5, thereby improving the fixing efficiency of the sealing plate 5.

[0029] refer to Figure 5 The front and rear sides of the inner wall of the box body 71 are fixedly connected with a fixing bar 10, and both sides of the bottom of the fixing bar 10 are fixedly connected with a sliding rod 13, the bottom of the sliding rod 13 passes through the bottom of the U-shaped plate 74, and the bottom of the sliding rod 13 is fixedly connected to the bottom of the inner wall of the box body 71.

[0030] As a technical optimization solution of the utility model, by providing a fixing bar 10 and a sliding rod 13, the U-shaped plate 74 can be stabilized to avoid shaking during the use of the U-shaped plate 74, thereby improving the operating stability of the U-shaped plate 74.

[0031] refer to Figure 5 The surface of the screw rod 75 is threadedly connected with a screw sleeve 11, the top of the screw sleeve 11 is fixedly connected to the bottom of the box body 71, and the shape of the screw sleeve 11 is circular.

[0032] As a technical optimization solution of the utility model, by providing the screw sleeve 11, the connection area between the screw 75 and the box body 71 can be increased, thereby avoiding the small connection area between the screw 75 and the box body 71, which leads to unstable cooperation between the screw 75 and the box body 71, and improving the use stability of the screw 75 and the box body 71.

[0033] refer to Figure 5 The bottom of the screw rod 75 is fixedly connected with a knob 12, and the knob 12 is located on both sides of the box body 71, and the shape of the knob 12 is round.

[0034] As a technical optimization solution of the present invention, by providing the knob 12, it is possible to facilitate the user to rotate the screw 75, thereby preventing the screw 75 from being difficult to be pinched by the user, which makes the screw 75 difficult to rotate, and improving the rotation efficiency of the screw 75.

[0035] The working principle and use process of the utility model are as follows: when the exhaust device 2 needs to replace the purification filter 6 during use, the screw 75 is rotated, the screw 75 drives the U-shaped plate 74 to move upward, the U-shaped plate 74 drives the clamping plate 73 to move upward, the clamping plate 73 is guided by the cylinder 72, the cylinder 72 rotates to the side away from the sealing plate 5, and the clamping plate 73 is separated from the sealing plate 5. When the sealing plate 5 loses its fixation, the sealing plate 5 is moved upward, the sealing plate 5 drives the purification filter 6 to move upward, the purification filter 6 is removed, and when the new purification filter 6 is installed, the above-mentioned disassembly steps can be reversed to complete the installation, thereby achieving the effect of efficient use.

[0036] To sum up: the fume hood exhaust device, through the coordinated use of the fume hood 1, exhaust equipment 2, exhaust pipe 3, box body 4, sealing plate 5, purification filter 6 and fixing mechanism 7, solves the problem that the purification components of the fume hood exhaust device are all built-in. When the purification filter of the purification component needs to be replaced, the fume hood needs to be opened, and then the purification component needs to be opened to take out the purification filter. During this period, two processes need to be opened, which reduces the maintenance efficiency of the purification component.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fume hood exhaust device, comprising a fume hood (1), Features: An exhaust device (2) is fixedly connected to the right side of the bottom of the fume hood (1); the output end of the exhaust device (2) is connected to an exhaust pipe (3); the output end of the exhaust pipe (3) is connected to the top of the fume hood (1); the input end of the exhaust pipe (3) is connected to a box (4); the box (4) is connected to the exhaust device (2); a sealing plate (5) is provided on the top of the box (4); a purification filter (6) is fixedly connected to the bottom of the sealing plate (5); the purification filter (6) is located inside the box (4); both sides of the box (4) are fixedly connected to fixing mechanisms (7); The fixing mechanism (7) comprises a box body (71), wherein the box body (71) is fixedly connected to two sides of the box body (4), a cylinder (72) is fixedly connected to the top of the box body (71), a clamping plate (73) is sleeved on the surface of the cylinder (72), the top of the clamping plate (73) contacts the surface of the sealing plate (5), the bottom of the clamping plate (73) is hingedly connected to a U-shaped plate (74) via a pin, the bottom of the U-shaped plate (74) is movably connected to a screw rod (75), the bottom of the screw rod (75) passes through the bottom of the box body (71), and the surface of the screw rod (75) is threadedly connected to the surface of the box body (71).

2. A fume hood exhaust device according to claim 1, Features: A handle (8) is fixedly connected to the top of the sealing plate (5); the handle (8) is U-shaped and is located on the top of the purification filter (6).

3. A fume hood exhaust device according to claim 1, Features: Both sides of the top of the sealing plate (5) are fixedly connected to limit blocks (9), the inner wall of the limit block (9) is in contact with the surface of the clamping plate (73), and the shape of the limit block (9) is U-shaped.

4. A fume hood exhaust device according to claim 1, Features: The front and rear sides of the inner wall of the box body (71) are fixedly connected to fixing bars (10), and both sides of the bottom of the fixing bars (10) are fixedly connected to sliding bars (13), the bottom of the sliding bars (13) penetrates to the bottom of the U-shaped plate (74), and the bottom of the sliding bars (13) is fixedly connected to the bottom of the inner wall of the box body (71).

5. A fume hood exhaust device according to claim 1, Features: A threaded sleeve (11) is threadedly connected to the surface of the screw rod (75); the top of the threaded sleeve (11) is fixedly connected to the bottom of the box body (71); and the shape of the threaded sleeve (11) is circular.

6. A fume hood exhaust device according to claim 1, Features: The bottom of the screw rod (75) is fixedly connected to a knob (12), the knob (12) is located on both sides of the box body (71), and the knob (12) is circular in shape.

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