Laboratory fuming cupboard capable of reducing noise and vibration

Abstract

The utility model provides a laboratory fuming cupboard capable of reducing noise and vibration, which belongs to the technical field of fuming cupboards and comprises a fuming cupboard main body, a fan and a ventilating duct, the fan is fixedly mounted at the top of the fuming cupboard main body, the ventilating duct is fixedly mounted at the top of the fan, and a supporting piece is movably mounted on the outer side of the ventilating duct. The supporting piece comprises a sound insulation damping fin, sound absorption cotton, particle blocks, sound insulation cotton and a connecting piece, the outer surface of the ventilation pipeline is wrapped with the sound insulation damping fin, the outer surface of the sound insulation damping fin is wrapped with the sound absorption cotton, and the particle blocks are fixedly connected to the outer surface of the sound absorption cotton. According to the ventilation cabinet, the supporting piece is installed outside the ventilation pipeline, on one hand, the ventilation pipeline can be installed and fixed, on the other hand, effective vibration reduction can be conducted on the ventilation pipeline, wrapping vibration reduction is achieved through the sound absorption cotton and the particle blocks, and noise and vibration generated in the working process of the ventilation cabinet are effectively reduced; noise and vibration are prevented from influencing experiment operators and surrounding personnel, and the working environment quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fume hoods, and in particular relates to a fume hood for laboratories with noise reduction and vibration reduction. Background Art

[0002] Fume hoods, also known as fume hoods, are a type of large equipment used in laboratories, especially chemical laboratories. The main function of a fume hood is to reduce the contact between experimenters and harmful gases in order to protect the staff and the laboratory environment. Through its exhaust function, it effectively discharges harmful gases, odors, moisture, and flammable, explosive, and corrosive substances generated during the experiment, thereby preventing these substances from spreading into the surrounding environment.

[0003] During the ventilation process of the fume hood, the ventilation duct connected to the outside will vibrate due to the flow of fluid, which is prone to resonance noise. The generation of this noise will reduce the quality of the working environment of the staff. If the noise is too loud, it will even affect the normal communication of indoor operators, which is not conducive to the progress of the experiment. Utility Model Content

[0004] The utility model aims to provide a laboratory fume hood with noise reduction and vibration reduction, aiming to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a laboratory fume hood with noise reduction and vibration reduction, comprising: a fume hood main body, a fan and a ventilation duct, wherein the fan is fixedly installed on the top of the fume hood main body, the ventilation duct is fixedly installed on the top of the fan, a support is movably installed on the outside of the ventilation duct, the support comprises a sound insulation damping sheet, sound-absorbing cotton, a particle block, sound insulation cotton and a connecting piece, the sound insulation damping sheet is wrapped on the outer surface of the ventilation duct, the sound-absorbing cotton is wrapped on the outer surface of the sound insulation damping sheet, the particle block is fixedly connected to the outer surface of the sound-absorbing cotton, the sound insulation cotton is wrapped on the outer surface of the particle block, and a plurality of the connecting pieces are sleeved on the outer surface of the sound insulation cotton.

[0007] As a preferred solution of the utility model, the connecting part includes support plate 1, support plate 2, an insert block, a first connecting hole, a slot, a second connecting hole, a connecting rod, a connecting plate, a mounting hole and a fixing screw. The support plate 1 and the support plate 2 are both movably mounted on the outer surface of the sound insulation cotton. The support plate 1 and the support plate 2 are both in the shape of an inner circle and an outer square. The insert blocks are respectively fixedly connected to the sides of the support plate 1 and the support plate 2 that are in contact with each other, and the first connecting hole is opened on one side of the insert block.

[0008] As a preferred solution of the utility model, the slots are respectively opened on the other side where support plate one and support plate two contact each other, the second connecting hole is opened on both sides of the inner wall of the slot, the connecting rod is fixedly installed inside the second connecting hole and passes through the inside of the first connecting hole, the connecting plate is fixedly connected to the back side of support plate one, the mounting hole is opened on the front side of the connecting plate, and the fixing screw is fixedly installed in the inner cavity of the mounting hole.

[0009] As a preferred solution of the utility model, an air exhaust port is provided on the top of the fume hood body, an air suction hood is fixedly installed on the bottom of the fan, and the air suction hood is fixedly installed inside the air exhaust port.

[0010] As a preferred solution of the utility model, a water tank is arranged inside the fume hood body, and a faucet is fixedly installed on the right side of the water tank.

[0011] As a preferred solution of the utility model, a glass sliding window is fixedly installed on the front of the fume hood body, a handle is fixedly connected to the front of the glass sliding window, and a control panel is fixedly installed on the right side of the glass sliding window.

[0012] As a preferred solution of the utility model, a storage cabinet is arranged at the bottom of the fume hood body, a cabinet door is fixedly installed on the front of the storage cabinet, and a handle is fixedly installed on the front of the cabinet door.

[0013] As a preferred solution of the utility model, a lamp tube is fixedly installed on the top of the inner wall of the fume hood body, a plurality of spotlights are fixedly installed on the front of the lamp tube, and rubber feet are fixedly connected to the four corners of the bottom of the fume hood body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This solution can install and fix the ventilation duct on the one hand by installing supports on the outside of the ventilation duct; on the other hand, it can effectively reduce the vibration of the ventilation duct, and use sound-absorbing cotton and particle blocks to wrap and reduce vibration, effectively reducing the noise impact of the fume hood during work, avoiding noise and vibration affecting surrounding colleagues or others, and improving the quality of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

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

[0018] Figure 2It is a partial cross-sectional view of the support member in the structure of the utility model;

[0019] Figure 3 It is an exploded view of the connecting member in the structure of the utility model;

[0020] Figure 4 It is a partial exploded view of the structure of the utility model.

[0021] In the figure: 1. Fume hood body; 2. Fan; 3. Ventilation duct; 4. Support; 401. Sound insulation damping sheet; 402. Sound-absorbing cotton; 403. Particle block; 404. Sound insulation cotton; 405. Connector; 405a. Support plate one; 405b. Support plate two; 405c. Insert block; 405d. First connecting hole; 405e. Slot; 405f. Second connecting hole; 405g. Connecting rod; 405h. Connecting plate; 405i. Mounting hole; 405j. Fixing screw; 5. Exhaust port; 6. Suction hood; 7. Sink; 8. Faucet; 9. Glass sliding window; 10. Handle; 11. Control panel; 12. Locker; 13. Cabinet door; 14. Handle; 15. Lamp tube; 16. Spotlight; 17. Rubber foot. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1

[0024] like Figures 1 to 4 As shown, a noise-reducing and vibration-reducing laboratory fume hood provided in Embodiment 1 of the present utility model comprises: a fume hood body 1, a fan 2 (i.e., an air suction fan) and a ventilation duct 3, the fan 2 is fixedly installed on the top of the fume hood body 1, the ventilation duct 3 is fixedly installed on the top of the fan 2, and a support member 4 is movably installed on the outer side of the ventilation duct 3;

[0025] Among them, the support member 4 is the main improvement mechanism; the support member 4 includes a sound insulation damping sheet 401, sound absorbing cotton 402, a particle block 403, sound insulation cotton 404 and a connecting member 405;

[0026] Among them, the sound insulation damping plate 401 is wrapped on the outer surface of the ventilation duct 3; the sound absorbing cotton 402 is wrapped on the outer surface of the sound insulation damping plate 401; the particle block 403 is fixedly connected to the outer surface of the sound absorbing cotton 402; the sound insulation cotton 404 is wrapped on the outer surface of the particle block 403; and a number of connectors 405 are sleeved on the outer surface of the sound insulation cotton 404.

[0027] When in use, wrap the support 4 around the outside of the ventilation duct 3. The coordinated use of the sound insulation damping sheet 401, the sound absorbing cotton 402, the particle block 403 and the sound insulation cotton 404 can not only effectively slow down the vibration of the ventilation duct 3 during ventilation and reduce the noise impact caused by the vibration, but also effectively absorb and isolate the noise to prevent the noise from affecting the working environment. By sleeve-connecting the connecting piece 405 on the outermost side of the duct, the circular ventilation duct 3 can be stably fixed on the wall.

[0028] In particular, the particle block 403 can buffer vibrations from multiple directions on the outer wall of the ventilation duct, disperse the force, avoid resonance between the connector 405 and the ventilation duct 3, and minimize the source of vibration and reduce noise to the greatest extent.

[0029] The first embodiment of the utility model provides a noise-reducing and vibration-reducing laboratory fume hood, which effectively slows down the vibration of the ventilation duct during ventilation and reduces the impact of noise by wrapping the outer surface of the ventilation duct with sound-insulating damping sheets, sound-absorbing cotton, particle blocks, sound-insulating cotton and other materials. This can greatly reduce the noise generated by the ventilation system and provide a quieter working environment.

[0030] The embodiment of the utility model also designs the combined use of sound insulation damping sheet, sound absorbing cotton, particle block and sound insulation cotton, which can further effectively absorb and isolate noise. Sound absorbing cotton and sound insulation cotton have good sound absorption performance, can absorb noise and reduce transmission. The particle block provides sound insulation effect through friction and collision between its particles.

[0031] At the same time, a stable and fixed support member 4 is designed: the support member is sleeved on the outermost side of the ventilation duct using a connector, so that the ventilation duct can be stably fixed on the wall. This ensures that the ventilation duct will not loosen or fall off due to vibration, ensuring the stability and safety of the system.

[0032] In summary, the noise reduction and vibration reduction technical solution for laboratory fume hoods achieves effective noise reduction, sound absorption and sound insulation effects through the improved support structure and the application of sound-absorbing and sound-insulating materials, provides a quieter and more comfortable working environment, and ensures the stable fixation of the ventilation duct.

[0033] refer to Figure 1 , Figure 2 and Figure 3 In the specific technical solution of this embodiment, the connecting member 405 includes a supporting plate 1 405a, a supporting plate 2 405b, an insert block 405c, a first connecting hole 405d, a slot 405e, a second connecting hole 405f, a connecting rod 405g, a connecting plate 405h, a mounting hole 405i and a fixing screw 405j;

[0034] Among them, the support plate 1 405a and the support plate 2 405b are both movably installed on the outer surface of the sound insulation cotton 404, and the support plate 1 405a and the support plate 2 405b are both in the shape of inner circle and outer square, and the plug block 405c is respectively fixedly connected to the side of the support plate 1 405a and the support plate 2 405b that contact each other, and the first connection hole 405d is opened on one side of the plug block 405c;

[0035] The slots 405e are respectively opened on the other side where the support plate 1 405a and the support plate 2 405b contact each other, and the second connecting hole 405f is opened on both sides of the inner wall of the slot 405e; the connecting rod 405g is fixedly installed inside the second connecting hole 405f and passes through the inside of the first connecting hole 405d; the connecting plate 405h is fixedly connected to the back side of the support plate 1 405a; the mounting hole 405i is opened on the front side of the connecting plate 405h, and the fixing screw 405j is fixedly installed in the inner cavity of the mounting hole 405i.

[0036] The above scheme is adopted: through the setting of the connecting piece 405, it is convenient to fix and install the circular ventilation duct 3, and the connecting piece 405 is sleeved on the outside of the ventilation duct 3, which is convenient and quick to operate, and the overall structure is easy to install and disassemble.

[0037] refer to Figure 1 , Figure 2 and Figure 4 In the specific technical scheme of this embodiment, an air vent 5 is provided on the top of the fume hood body 1, and an air suction hood 6 is fixedly installed at the bottom of the fan 2; the air suction hood 6 is fixedly installed inside the air vent 5; a water tank 7 is provided inside the fume hood body 1, and a faucet 8 is fixedly installed on the right side of the water tank 7; a glass sliding window 9 is fixedly installed on the front of the fume hood body 1; a handle 10 is fixedly connected to the front of the glass sliding window 9; a control panel 11 is fixedly installed on the right side of the glass sliding window 9, and a storage cabinet 12 is provided at the bottom of the fume hood body 1;

[0038] A cabinet door 13 is fixedly installed on the front of the storage cabinet 12, a handle 14 is fixedly installed on the front of the cabinet door 13, a lamp tube 15 is fixedly installed on the top of the inner wall of the fume hood body 1, a plurality of spotlights 16 are fixedly installed on the front of the lamp tube 15, and rubber feet 17 are fixedly connected to the four corners of the bottom of the fume hood body 1.

[0039] The above solution is adopted: by setting up a plurality of spotlights 16, it is convenient for staff to observe and operate. In some cases, lighting at a specific angle may be required for clear observation or operation. Staff can rotate the spotlights 16 to obtain flexible lighting angles to meet the needs of different scenes.

[0040] In addition, the fume hood body 1 may generate vibration during operation. The rubber feet 17 can buffer the vibration, reduce noise, and increase the service life of the equipment. The rubber feet 17 also have good elasticity and anti-slip properties, which can protect the bottom of the fume hood body 1 from wear and tear, while avoiding direct contact between the cabinet body and the ground, thereby improving the stability and safety of the fume hood.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A laboratory fume hood with noise reduction and vibration reduction, characterized in that: include: A fume hood body (1), a fan (2), and a ventilation duct (3), wherein the fan (2) is fixedly mounted on the top of the fume hood body (1), and the ventilation duct (3) is fixedly mounted on the top of the fan (2); A support member (4) is movably installed on the outer side of the ventilation duct (3); the support member (4) comprises a sound insulation damping sheet (401), sound absorbing cotton (402), a particle block (403), sound insulation cotton (404) and a connecting member (405); The sound insulation damping sheet (401) is wrapped around the outer surface of the ventilation duct (3), the sound absorbing cotton (402) is wrapped around the outer surface of the sound insulation damping sheet (401), the particle block (403) is fixedly connected to the outer surface of the sound absorbing cotton (402), the sound insulation cotton (404) is wrapped around the outer surface of the particle block (403), and a plurality of the connecting parts (405) are sleeved on the outer surface of the sound insulation cotton (404).

2. A noise-reducing and vibration-reducing laboratory fume hood according to claim 1, characterized in that: The connecting member (405) includes a supporting plate 1 (405a), a supporting plate 2 (405b), an insert block (405c), a first connecting hole (405d), a slot (405e), a second connecting hole (405f), a connecting rod (405g), a connecting plate (405h), a mounting hole (405i) and a fixing screw (405j); Among them, the support plate one (405a) and the support plate two (405b) are both movably installed on the outer surface of the sound insulation cotton (404), and the support plate one (405a) and the support plate two (405b) are both in the shape of an inner circle and an outer square. The plug block (405c) is respectively fixedly connected to the side of the support plate one (405a) and the support plate two (405b) that contact each other, and the first connecting hole (405d) is opened on one side of the plug block (405c).

3. A noise-reducing and vibration-reducing laboratory fume hood according to claim 2, characterized in that: The slots (405e) are respectively provided on the other side where the support plate 1 (405a) and the support plate 2 (405b) contact each other, and the second connection holes (405f) are provided on both sides of the inner wall of the slots (405e); The connecting rod (405g) is fixedly installed inside the second connecting hole (405f) and passes through the inside of the first connecting hole (405d), and the connecting plate (405h) is fixedly connected to the back side of the supporting plate (405a); the mounting hole (405i) is opened on the front side of the connecting plate (405h), and the fixing screw (405j) is fixedly installed in the inner cavity of the mounting hole (405i).

4. A noise-reducing and vibration-reducing laboratory fume hood according to claim 1, characterized in that: An air vent (5) is provided on the top of the fume hood body (1), and an air suction hood (6) is fixedly installed on the bottom of the fan (2), and the air suction hood (6) is fixedly installed inside the air vent (5).

5. A noise-reducing and vibration-reducing laboratory fume hood according to claim 1, characterized in that: A water tank (7) is arranged inside the fume hood body (1), and a faucet (8) is fixedly installed on the right side of the water tank (7).

6. A noise-reducing and vibration-reducing laboratory fume hood according to claim 1, characterized in that: A glass sliding window (9) is fixedly installed on the front of the fume hood body (1), a handle (10) is fixedly connected to the front of the glass sliding window (9), and a control panel (11) is fixedly installed on the right side of the glass sliding window (9).

7. A laboratory fume hood with noise reduction and vibration reduction according to claim 1, characterized in that: A storage cabinet (12) is arranged at the bottom of the fume hood body (1), a cabinet door (13) is fixedly installed on the front of the storage cabinet (12), and a handle (14) is fixedly installed on the front of the cabinet door (13).

8. A noise-reducing and vibration-reducing laboratory fume hood according to claim 1, characterized in that: A light tube (15) is fixedly mounted on the top of the inner wall of the fume hood body (1), a plurality of spotlights (16) are fixedly mounted on the front of the light tube (15), and rubber pads (17) are fixedly connected to the four corners of the bottom of the fume hood body (1).

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