CN113058962B - Fume chamber with air supply device - Google Patents
Fume chamber with air supply device Download PDFInfo
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- CN113058962B CN113058962B CN202110401890.7A CN202110401890A CN113058962B CN 113058962 B CN113058962 B CN 113058962B CN 202110401890 A CN202110401890 A CN 202110401890A CN 113058962 B CN113058962 B CN 113058962B
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- inner cavity
- air
- cabinet body
- frame body
- air outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
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Abstract
The utility model relates to a fume chamber with air feed arrangement, relate to the field of laboratory fume chamber, the intelligent cabinet temperature adjusting device comprises a cabinet body, internal cavity has been seted up to the internal portion of cabinet, set up the experimental window with interior cavity intercommunication on the lateral wall of the cabinet body, experimental window department installs the glass window that is used for realizing the experimental window switching, it has the exhaust pipe still to link firmly on the cabinet body, the one end and the interior cavity intercommunication of exhaust pipe, the other end and the being connected to of exhaust pipe are outdoor, the rigid coupling has the air exhauster in the exhaust pipe, it has the air-supply line with interior cavity intercommunication still to link firmly on the lateral wall of the cabinet body, the air-supply line communicates to outdoor. The method has the advantage that indoor energy loss in the experimental process can be reduced.
Description
Technical Field
The application relates to the field of laboratory fume hoods, in particular to a fume hood with an air supply device.
Background
Fume hoods are common laboratory equipment, and are generally used in fume hoods when experiments which can generate toxic and harmful gases are performed in laboratories. Referring to fig. 1 and 2, a fume hood in the related art includes a cabinet body 1, an inner cavity 11 is disposed in the cabinet body 1, an air deflector 16 is fixedly connected in the inner cavity 11 and divides the inner cavity 11 into an experimental region 111 and an exhaust region 112, an air outlet is disposed between the air deflector 16 and a lower wall of the inner cavity 11, an exhaust duct 13 communicated with the exhaust region 112 is fixedly connected to an upper surface of the cabinet body 1, and an exhaust fan 131 is fixedly connected in the exhaust duct 13. An experiment window 12 communicated with the inner cavity 11 is arranged on the side wall of the cabinet body 1, and a lifting glass window 2 is arranged in the experiment window 12.
The staff is at the in-process of carrying out the experiment, goes up and down to lift glass window 2 according to actual needs, then carries out the experiment in experimental area 111, and exhaust fan 131 in exhaust pipe 13 keeps opening at this in-process, and the gas that produces in the experimental process can be discharged to outdoor or in the purifier through air exit, exhaust area 112 and exhaust pipe 13 under the effect of exhaust fan 131.
To the correlation technique among the above-mentioned, the inventor finds that when the staff was using the fume chamber, the air inlet in the fume chamber was mainly indoor wind, and indoor many circumstances all is that the air conditioner is opened, and the fume chamber can lose more indoor energy at the in-process of work like this, causes the energy waste of certain degree.
Disclosure of Invention
In order to improve the fume chamber among the correlation technique and cause the extravagant problem of indoor energy relatively easily, this application provides a fume chamber with air feed device.
The application provides a fume chamber with air feed device adopts following technical scheme:
the utility model provides a fume chamber with air feed arrangement, the intelligent cabinet temperature adjusting device comprises a cabinet body, internal cavity has been seted up to the cabinet, set up the experimental window with interior cavity intercommunication on the lateral wall of the cabinet body, experimental window department installs the glass window that is used for realizing the experimental window switching, it has the exhaust pipe still to rigid coupling on the cabinet body, the one end and the interior cavity intercommunication of exhaust pipe, the other end of exhaust pipe with be connected to outdoor, the rigid coupling has the air exhauster in the exhaust pipe, it has the air-supply line with interior cavity intercommunication still to rigid coupling on the lateral wall of the cabinet body, the air-supply line communicates to outdoor.
Through adopting above-mentioned technical scheme, the exhaust pipe communicates with outdoor, and after the in-process air exhauster of experiment has extracted the interior intracavity air, the interior intracavity air can supply through outdoor air to the loss of indoor air has been reduced, thereby has reduced the loss of indoor energy.
Optionally, an exhaust frame is arranged in the inner cavity, the exhaust frame is of a hollow tubular structure, a plurality of air outlet holes used for blowing air into the inner cavity are formed in the exhaust frame, and the air inlet pipe is communicated with the exhaust frame.
By adopting the technical scheme, the exhaust frame can uniformly exhaust air into the inner cavity as much as possible, so that the accumulation of waste gas in the inner cavity is reduced.
Optionally, an air blower for blowing air into the air inlet pipe is fixedly connected to the air inlet pipe.
Through adopting above-mentioned technical scheme, the air blast shell can be to supplying gas in the exhaust frame to make the exhaust frame blow off gas in to the internal cavity, thereby make the exhaust frame can have certain cleaning action to the waste gas in the internal cavity.
Optionally, the inner cavity is set to be a rectangular cavity, the exhaust frame includes a first main frame, a second main frame and four connecting pipes, the first main frame and the second main frame are both set to be rectangular, the first main frame is attached to the upper wall of the inner cavity, the air outlet holes in the first main frame are first air outlet holes, the plurality of first air outlet holes are respectively provided in two groups, and the two groups of first air outlet holes are respectively used for blowing air to the upper wall of the inner cavity and four side walls of the inner cavity; the air outlet holes in the second main frame body are second air outlet holes, the second main frame body is attached to the lower wall of the inner cavity, the two groups of second air outlet holes in the second main frame body are used for blowing air to the lower wall of the inner cavity and four side walls of the inner cavity; the four connecting pipes are respectively positioned at the corner positions of the inner cavity in four vertical directions, the air outlets on the connecting pipes are third air outlets, the third air outlets on the connecting pipes are arranged into two groups, and the two groups of third air outlets are used for blowing air to the inner cavity side walls on two sides of the connecting pipes.
By adopting the technical scheme, on one hand, the gas blown out by the exhaust frame faces the side wall of the inner cavity, so that the influence on the experimental process in the inner cavity can be reduced as much as possible; on the other hand, can also sweep the edge that accumulates waste gas more easily in the cavity to make the exhaust frame better to the clearance effect of cavity internal waste gas.
Optionally, the glass window includes fixed outer frame body and glass panels together, has seted up two operation mouths on the glass panels, is provided with coupling assembling between the outer frame body and the cabinet body, and the outer frame body passes through coupling assembling and installs to the cabinet body.
Through adopting above-mentioned technical scheme, the glass window passes through coupling assembling can make opening and closing of experiment window.
Optionally, the connecting assembly comprises a connecting frame and a connecting piece, the connecting frame comprises a main rod and a sliding rod, the sliding rod is horizontally arranged, the main rod is arranged along the height direction of the cabinet body, a sliding way matched with the sliding rod is horizontally arranged on the cabinet body, and the sliding rod is connected with the inside of the sliding way in a sliding way; the main rod is provided with a track distributed along the length direction of the main rod; the connecting piece is fixedly connected to the outer frame body, the connecting piece is connected in the track in a sliding mode, and the glass window can only slide along the track under the limitation of the track.
Through adopting above-mentioned technical scheme, the staff can pull glass window and move a distance back to the direction of the cabinet body after, make glass window upwards or be the experiment window opened after the downstream.
Optionally, a fixing piece is arranged between the glass window and the cabinet body, and when the experiment window is closed by the glass window, the fixing piece is used for fixing the state of the glass window.
Through adopting above-mentioned technical scheme, when the glass window seals the experiment window, the mounting is fixed with the state of glass window.
Optionally, the fixing piece is located below the connecting piece, the fixing piece is fixedly connected to the cabinet body, a through hole matched with the fixing piece is formed in the main rod, a plugging hole is vertically formed in the fixing piece, and a plugging rod matched with the plugging hole is fixedly connected to the lower surface of the corresponding connecting piece.
Through adopting above-mentioned technical scheme, when the staff need be with the experiment window confined, the staff can promote the glass window to the direction motion of the cabinet body, stretch into the track after the mounting passes the through-hole in, then the glass window that slides downwards, it can in the spliced pole on the connecting piece inserts the spliced eye.
Optionally, a fixing assembly is arranged between the connecting frame and the glass window, and when the experiment window is opened, the fixing assembly is used for temporarily fixing the position state of the glass window.
Through adopting above-mentioned technical scheme, when the experiment window was opened, fixed subassembly can be fixed with the state of glass window.
Optionally, the fixing assembly is located above the connecting piece, the fixing assembly includes two clamping rods, two fixing grooves are symmetrically formed in the inner wall of the rail, the two clamping rods are connected in the two fixing grooves in a sliding manner respectively, a return spring is arranged between the clamping rods and the fixing grooves, and the clamping rods extend out of the fixing grooves under the action of the return spring; the top of the connecting piece is provided with two first inclined planes which respectively correspond to the two clamping and connecting rods one by one; the bottom of connecting piece is provided with two second inclined planes, and two second inclined planes and two joint pole one-to-ones have seted up the spread groove on the lower surface of connecting piece, and it is connected with the joint board to slide in the spread groove, is provided with between joint board and the connecting piece to be used for driving the regulating part and carries out gliding regulating part from top to bottom in the spread groove.
By adopting the technical scheme, after the experiment window is opened, a worker drives the clamping plate to move downwards through the adjusting piece until the lower edge of the clamping plate is lower than the upper edge of the second inclined plane, then the worker enables the glass window to slide upwards along the main rod, in the process, the two first inclined planes at the top of the sliding block gradually extrude the clamping rods into the fixing grooves after being contacted with the two clamping rods, when the sliding block is completely positioned above the clamping rods, the bottom of the clamping plate is erected on the two clamping rods, and at the moment, the state of the glass window is fixed; when the experiment window need be closed, the staff slides in the spread groove through regulating part drive joint board, make the lower border of joint board not less than the last border on second inclined plane, the staff is making the glass window along mobile jib gliding in-process this moment, two second inclined planes can promote two joint poles and move to the fixed slot in, treat the slider and be located two joint poles under completely, two joint poles stretch out the fixed slot under reset spring's effect, at this in-process, can guarantee that the glass window can follow the mobile jib gliding and seal the experiment window.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the air inlet pipe which enables the inner cavity to be communicated with the outdoor is arranged on the cabinet body, so that when air in the inner cavity is lost, the air inlet pipe can supplement the air in the inner cavity, the loss of indoor air is reduced, and the loss of indoor energy is further reduced;
2. the exhaust frame is arranged in the cabinet body, so that on one hand, air can be supplemented into the inner cavity, and on the other hand, the exhaust frame can also have a certain cleaning effect on waste gas in the inner cavity;
3. through set up coupling assembling between the glass window and the cabinet body, set up the mounting between the glass window and the cabinet body, set up fixed subassembly on the link simultaneously for the staff is all more convenient when opening experimental window or closing experimental window.
Drawings
Fig. 1 is a schematic structural diagram of an external shape of a related art fume hood.
Fig. 2 is a side sectional view of a related art hood.
Fig. 3 is a schematic structural diagram of the appearance of the fume hood in the embodiment of the present application.
Figure 4 is a side sectional view of a fumehood in an embodiment of the present application.
Fig. 5 is a schematic structural diagram of an external shape of an exhaust frame in an embodiment of the present application.
Figure 6 is a schematic view of an embodiment of the present application with the glazing in an open position.
Fig. 7 is a partially enlarged schematic view of a portion a in fig. 6.
FIG. 8 is a schematic view of the connection structure of the highlighted glass window and the connecting frame in the embodiment of the present application.
Fig. 9 is a schematic view showing the arrangement structure of the clamping rod in the main rod in the embodiment of the present application.
Fig. 10 is a schematic view showing a connection structure between the protruded connection member and the rail in the embodiment of the present application.
Fig. 11 is a schematic view showing a layout structure of the protruding limiting groove in the slide rail according to the embodiment of the present application.
Description of the reference numerals: 1. a cabinet body; 11. an inner cavity; 111. an experimental area; 112. a venting zone; 12. an experimental window; 13. an exhaust duct; 131. an exhaust fan; 14. an air inlet pipe; 141. a blower; 15. mounting grooves; 151. a groove; 1511. a slideway; 1512. a limiting groove; 152. a slip margin; 16. an air deflector; 2. a glass window; 21. an outer frame body; 211. a handle; 22. a glass panel; 221. an operation port; 3. an exhaust frame; 31. a first main frame body; 311. a first air outlet; 32. a second main frame body; 321. a second air outlet; 33. a connecting pipe; 331. a third air outlet; 4. a connecting assembly; 41. a connecting frame; 411. a main rod; 4111. a track; 4112. a through hole; 4113. fixing grooves; 412. a slide bar; 4121. a limiting block; 42. a connecting member; 421. a slider; 4211. a plug rod; 4212. a first inclined plane; 4213. a second inclined plane; 4214. connecting grooves; 422. connecting blocks; 5. a fixing member; 51. inserting holes; 6. a fixing assembly; 61. a clamping and connecting rod; 62. a return spring; 63. a clamping plate; 64. an adjustment member; 641. a connecting spring; 642. a butterfly bolt; 7. a seal member; 71. connecting cloth; 72. an elastic ring.
Detailed Description
The present application is described in further detail below with reference to figures 3-11.
The embodiment of the application discloses fume chamber with air feed device. Referring to fig. 3 and 4, the fume hood includes a cabinet body 1, an inner cavity 11 is arranged in the cabinet body 1, an experiment window 12 is arranged on the side wall of the cabinet body 1, and a glass window 2 is arranged in the experiment window 12; an exhaust pipe 13 communicated with the inner cavity 11 is fixedly connected to the upper surface of the cabinet body 1, and an exhaust fan 131 is fixedly connected in the exhaust pipe 13; an air inlet pipe 14 is further fixedly connected to the side wall of the cabinet body 1, one end of the air inlet pipe 14 is communicated with the inner cavity 11, and the other end of the air inlet pipe 14 is connected to the outside.
In the process of the experiment performed by the worker in the inner cavity 11, the air inlet pipe 14 can extract outdoor air to supplement the outdoor air to the inner cavity 11, so that the energy loss in indoor air is reduced, and the purpose of saving energy is achieved.
Referring to fig. 4 and 5, an exhaust frame 3 is arranged in the inner cavity 11, the exhaust frame 3 includes a rectangular first main frame body 31, a rectangular second main frame body 32 and four connecting pipes 33, the interiors of the first main frame body 31 and the second main frame body 32 are both hollow, the first main frame body 31 and the second main frame body 32 are both horizontally arranged, the first main frame body 31 and the second main frame body 32 are arranged in a high-low manner, the four connecting pipes 33 are located between the first main frame body 31 and the second main frame body 32, the four connecting pipes 33 are located at four corner positions of the exhaust frame 3 respectively, two ends of the connecting pipes 33 are fixedly connected with the first main frame body 31 and the second main frame body 32 respectively, and the first main frame body 31, the second main frame body 32 and the four connecting pipes 33 are all communicated. The exhaust frame 3 is communicated with the air inlet pipe 14, and the air inlet pipe 14 is provided with a blower 141 for blowing air into the air inlet pipe 14;
the first main frame 31 in the exhaust frame 3 is attached to the upper wall of the inner cavity 11, the second main frame 32 is attached to the lower wall of the inner cavity 11, and four connecting pipes 33 are respectively installed at four corner positions of the inner cavity 11 in the vertical direction. The first main frame 31 has a plurality of first air outlets 311, the second main frame 32 has a plurality of second air outlets 321, and the connecting pipe 33 has a plurality of third air outlets 331.
In the experiment process, the blower pumps outdoor air and then discharges the air to the inner cavity 11 through the exhaust frame 3, the exhaust frame 3 can blow the side wall of the inner cavity 11, so that waste gas can be cleaned, and waste gas accumulation at corner positions in the inner cavity 11 is avoided as much as possible.
The first air outlet holes 311 on the first main frame 31 are arranged in two groups, each group of first air outlet holes 311 is uniformly arranged around the axis of the first main frame 31, and the two groups of first air outlet holes 311 are respectively used for sweeping the upper wall and the four side walls of the inner cavity 11; the second air outlet holes 321 on the second main frame 32 are arranged in groups, each group of the second air outlet holes 321 is uniformly arranged around the axis of the second main frame 32, and the two groups of the second air outlet holes 321 are respectively used for purging the lower wall and the four side walls of the inner cavity 11; the third air outlet holes 331 on the connecting pipe 33 are arranged in two groups, the two groups of third air outlet holes 331 are uniformly distributed along the length direction of the connecting pipe 33, and the two groups of third air outlet holes 331 are used for blowing the side wall of the inner cavity 11 at the positions on both sides of the connecting pipe 33.
The exhaust frame 3 can blow each side wall in the inner cavity 11, so that the phenomenon of waste gas accumulation in the inner cavity 11 is avoided as much as possible.
The cabinet body 1 at the edge position of the experiment window 12 is provided with a mounting groove 15, the glass window 2 comprises an outer frame body 21 and a glass panel 22, and the glass panel 22 is fixed on the outer frame body 21 through structural adhesive. Outer frame body 21 and mounting groove 15 adaptation, and outer frame body 21 inlay establish with mounting groove 15 in, be provided with coupling assembling 4 between outer frame body 21 and the cabinet body 1, outer frame body 21 passes through coupling assembling 4 and installs to the cabinet body 1, and the staff can realize opening and sealing of glass window 2 with experiment window 12 through coupling assembling 4. Two operation openings 221 are formed in the glass panel 22, and a handle 211 convenient for an operator to operate the glass window 2 is fixedly connected to the bottom of one surface of the outer frame body 21, which is far away from the bottom wall of the installation groove 15.
The staff is at the in-process of carrying out the experiment, at first open glass window 2, later place experimental facilities in interior cavity 11, staff's reuse glass window 2 seals experiment window 12, treat to start behind air exhauster 141 and the air-blower, the staff both hands are stretched into respectively and are experimented in operation mouth 221, can seal experiment window 12 as far as at this process glass window 2, one side can avoid indoor air to enter into interior cavity 11 as far as, on the other hand can also avoid the interior waste gas of cavity 11 to spill to outdoor as far as.
Referring to fig. 7 and 8, the connecting assembly 4 includes two connecting frames 41 arranged in parallel, each connecting frame 41 includes a main rod 411 and two sliding rods 412, the two sliding rods 412 are respectively located at two ends of the main rod 411, the sliding rods 412 are perpendicular to the main rod 411, and the main rod 411 and the two sliding rods 412 together form a U-shaped connecting frame 41.
Referring to fig. 6 and 7, two grooves 151 adapted to the main rods 411 are formed in the bottom wall of the mounting groove 15, the two grooves 151 are respectively in one-to-one correspondence with the main rods 411 of the two connecting frames 41, two slide ways 1511 are arranged in the grooves 151, and the slide ways 1511 are provided with blind holes formed in the bottom wall of the grooves 151. The two sliding rods 412 of the connecting frame 41 are slidably connected in the two sliding ways 1511 respectively.
Referring to fig. 9, a rail 4111 is disposed on a surface of the main rod 411 of the connecting frame 41, the surface being away from the bottom wall of the mounting groove 15, the rail 4111 is disposed along a length direction of the main rod 411, specifically, the rail 4111 is disposed as a sliding groove opened on the main rod 411, and a cross section of the rail 4111 is "T" shaped.
Referring to fig. 8 and 10, the connecting assembly 4 further includes two connecting members 42 mounted to one surface of the outer frame 21 facing the mounting groove 15, the two connecting members 42 respectively correspond to the two main rods 411 one by one, and each connecting member 42 includes a slider 421 and a connecting block 422 for mounting the slider 421 to the outer frame 21; the slider 421 is slidably connected to the rail 4111, and the connecting block 422 is fixedly connected between the slider 421 and the outer frame 21.
When the worker needs to open the experiment window 12, the worker pulls the glass window 2 to move in the direction away from the cabinet body 1, and after the glass window 2 is separated from the installation groove 15, the worker pushes the glass window 2 upwards to open the experiment window 12; when the staff need close experiment window 12, at first along the length direction slip glass window 2 of mobile jib 411 make glass window 2 and mounting groove 15 align the back, continue to promote glass window 2 to the direction motion of the cabinet body 1, treat that the mobile jib 411 of link 41 imbeds in the recess 151 after, glass window 2 can inlay and establish in mounting groove 15.
Referring to fig. 7, in order to stabilize the installation of the glass window 2 into the chute, a fixing member 5 is disposed between the cabinet 1 and the glass window 2. Specifically, two fixing pieces 5 are arranged, the two fixing pieces 5 are respectively in one-to-one correspondence with the two connecting frames 41, the fixing pieces 5 are arranged in a rod-shaped structure, the fixing pieces 5 are vertically and fixedly connected to the bottom wall in the groove 151, a through hole 4112 matched with the fixing piece 5 is formed in the bottom wall in the rail 4111, and an inserting hole 51 is formed in the upper surface of the fixing piece 5;
referring to fig. 10, a plug rod 4211 adapted to the plug hole 51 is fixedly connected to a lower surface of the corresponding sliding block 421.
Referring to fig. 3, a sliding margin for sliding the glass window 2 is reserved at the top of the mounting groove 15.
When the glass window needs to be closed, a worker firstly pushes the glass window 2 to move towards the cabinet body 1 until the main rod 411 completely enters the groove 151, at the moment, the glass window 2 is embedded into the mounting groove 15, the top of the glass window 2 is located in the area of the sliding allowance 152 at the top of the mounting groove 15, then the worker slides the glass window 2 downwards, so that the plug rod 4211 on the sliding block 421 is inserted into the plug hole 51 on the fixing piece 5, and at the moment, the glass window 2 is fixed.
Referring to fig. 9 and 10, a set of fixing assemblies 6 is disposed between the two connecting frames 41 and the glass window 2, the fixing assemblies 6 are located at the top region of the main rod 411, the fixing assemblies 6 are disposed so that when the worker opens the experiment window 12, the fixing assemblies 6 can fix the state of the glass window 2, and thus the worker can be more convenient to place the experiment device in the inner cavity 11.
Particularly, fixed subassembly 6 includes two joint poles 61, has all seted up two fixed slots 4113 on being in two lateral walls of relative position in track 4111, two fixed slots 4113 coaxial settings, and two joint poles 61 respectively with two fixed slots 4113 one-to-one, joint pole 61 slides and connects in fixed slot 4113, the rigid coupling has reset spring 62 between joint pole 61 and the diapire of fixed slot 4113, under reset spring 62's effect, the one end that reset spring 62 was kept away from to joint pole 61 stretches out fixed slot 4113.
The top of the sliding block 421 is provided with two first inclined surfaces 4212, and the two first inclined surfaces 4212 correspond to the two clamping rods 61 one by one respectively; the bottom of the sliding block 421 is provided with two second inclined surfaces 4213, and the two second inclined surfaces 4213 correspond to the two clamping rods 61 one by one respectively; the lower surface of the slider 421 is provided with a connecting groove 4214 arranged along the length direction of the slider 421, two sides of the connecting groove 4214 respectively extend to two side walls of the slider 421, and the connecting groove 4214 is connected with a clamping plate 63 in a sliding manner. The slider 421 is provided with an adjusting member 64 for driving the engaging plate 63 to move in the connecting groove 4214 in the length direction of the slider 421.
After the experiment window 12 is opened, a worker drives the clamping plate 63 to move downwards through the adjusting piece 64 until the lower edge of the clamping plate 63 is lower than the upper edge of the second inclined surface 4213, then the worker enables the glass window 2 to slide upwards along the main rod 411, in the process, the two first inclined surfaces 4212 at the top of the sliding block 421 gradually extrude the clamping rods 61 into the fixing grooves 4113 after being in contact with the two clamping rods 61, when the sliding block 421 is completely positioned above the clamping rods 61, the bottom of the clamping plate 63 is erected on the two clamping rods 61, and at this time, the state of the glass window 2 is fixed;
when the experiment window 12 needs to be closed, the worker drives the clamping plate 63 to slide in the connecting groove 4214 through the adjusting piece 64, so that the lower edge of the clamping plate 63 is not lower than the upper edge of the second inclined surface 4213, at this time, the worker pushes the two clamping rods 61 to move into the fixing groove 4113 in the process of enabling the glass window 2 to slide downwards along the main rod 411, when the sliding block 421 is completely located right below the two clamping rods 61, the two clamping rods 61 extend out of the fixing groove 4113 under the action of the return spring 62, and in the process, it can be guaranteed that the glass window 2 can slide downwards along the main rod 411 to seal the experiment window 12.
The adjusting member 64 includes a plurality of connecting springs 641 and butterfly bolts 642, the connecting springs 641 are fixedly connected between the bottom walls of the clamping plate 63 and the connecting groove 4214, two mounting holes are formed in a surface of the outer frame 21 away from the mounting groove 15, the two mounting holes are in one-to-one correspondence with the two butterfly bolts 642, the mounting holes extend to the connecting groove 4214, the butterfly bolts 642 are connected to the outer frame 21 through the mounting holes in a threaded manner, the butterfly bolts 642 extend into the space between the bottom walls of the clamping plate 63 and the connecting groove 4214, and ends of the butterfly bolts 642 are tapered.
When the clamping plate 63 needs to move downwards, a worker screws the butterfly bolt 642 to enable the butterfly bolt 642 to move towards the position between the clamping plate 63 and the bottom wall of the connecting groove 4214, and in the process, the conical surface at the end part of the butterfly bolt 642 pushes the clamping plate 63 to move downwards; when the upward movement of the latch plate 63 is required, the worker screws the thumb screw 642 to gradually disengage the thumb screw 642 from between the latch plate 63 and the bottom wall of the coupling groove 4214, so that the latch plate 63 is gradually moved upward by the coupling spring 641.
Referring to fig. 3, the sealing members 7 are disposed at two operation ports 221 of the glass panel 22, each sealing member 7 includes a connecting cloth 71 and an elastic ring 72, the connecting cloth 71 is of a tubular structure, one end edge of the connecting cloth 71 is fixedly connected to the glass panel 22 at the operation port 221, and the elastic ring 72 is fixedly connected to an edge position of one end of the connecting cloth 71 away from the glass panel 22. Thus, when the operator inserts both hands into the inner cavity 11 through the operation opening 221 for performing an experiment, the connection ring of the sealing member 7 can be attached to the arm of the operator as closely as possible, thereby increasing the sealing performance at the operation opening 221.
Referring to fig. 9, a limit block 4121 is fixedly connected to an outer peripheral surface of one end of the sliding rod 412 away from the connecting frame.
Referring to fig. 11, a limiting groove 1512 adapted to the limiting block 4121 is disposed on an inner wall of the corresponding slide 1511, the limiting groove 1512 is disposed along a length direction of the slide 1511, and the limiting block 4121 is slidably connected in the limiting groove 1512. The engagement of the stop block 4121 and the stop groove 1512 prevents the slide bar 412 from disengaging from the slide 1511 as much as possible.
The implementation principle of the fume chamber with the air supply device in the embodiment of the application is as follows: before the experiment, the worker firstly opens the experiment window 12 to place the experiment equipment in the inner cavity 11, then seals the experiment window 12 with the glass window 2, then opens the exhaust fan 131 and the blower 141, and then performs the experiment, in the experiment process, the blower 141 can extract outdoor air to supply air to the inner cavity 11, the exhaust pipe 13 can extract waste gas in the inner cavity 11 to the outdoor or the purification equipment, and meanwhile, because the air in the blower 141 supplies air to the inner cavity 11 through the exhaust frame 3, the residue of the waste gas at the inner edge position of the inner cavity 11 can be reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (3)
1. The utility model provides a fume chamber with air feed device which characterized in that: the multifunctional intelligent cabinet comprises a cabinet body (1), an inner cavity (11) is formed in the cabinet body (1), an experiment window (12) communicated with the inner cavity (11) is formed in the side wall of the cabinet body (1), a glass window (2) used for opening and closing the experiment window (12) is installed at the position of the experiment window (12), an exhaust pipe (13) is further fixedly connected onto the cabinet body (1), one end of the exhaust pipe (13) is communicated with the inner cavity (11), the other end of the exhaust pipe (13) is connected to the outside, an exhaust fan (131) is fixedly connected into the exhaust pipe (13), an air inlet pipe (14) communicated with the inner cavity (11) is further fixedly connected onto the side wall of the cabinet body (1), and the air inlet pipe (14) is communicated to the outside;
an exhaust frame (3) is arranged in the inner cavity (11), the exhaust frame (3) is of a hollow tubular structure, a plurality of air outlet holes used for blowing air into the inner cavity (11) are formed in the exhaust frame (3), and an air inlet pipe (14) is communicated with the exhaust frame (3);
an air blower (141) used for blowing air into the air inlet pipe (14) is fixedly connected to the air inlet pipe (14);
the inner cavity (11) is set to be a rectangular cavity, the exhaust frame (3) comprises a first main frame body (31), a second main frame body (32) and four connecting pipes (33), the first main frame body (31) and the second main frame body (32) are both set to be rectangular, the first main frame body (31) is attached to the upper wall of the inner cavity (11), the air outlet holes in the first main frame body (31) are first air outlet holes (311), the first air outlet holes (311) are respectively arranged in two groups, and the two groups of first air outlet holes (311) are respectively used for blowing air to the upper wall of the inner cavity (11) and four side walls of the inner cavity (11); the air outlet holes in the second main frame body (32) are second air outlet holes (321), the second main frame body (32) is attached to the lower wall of the inner cavity (11), the second air outlet holes (321) in the second main frame body (32) are arranged into two groups, and the two groups of second air outlet holes (321) are used for blowing air to the lower wall of the inner cavity (11) and four side walls of the inner cavity (11); the four connecting pipes (33) are respectively positioned at the corner positions of the inner cavity (11) in the four vertical directions, the air outlet holes in the connecting pipes (33) are third air outlet holes (331), the third air outlet holes (331) in the connecting pipes (33) are arranged into two groups, and the two groups of third air outlet holes (331) are used for blowing air to the side walls of the inner cavity (11) at the two sides of the connecting pipes (33);
the glass window (2) comprises an outer frame body (21) and a glass panel (22) which are fixed together, two operation openings (221) are formed in the glass panel (22), a connecting assembly (4) is arranged between the outer frame body (21) and the cabinet body (1), and the outer frame body (21) is installed on the cabinet body (1) through the connecting assembly (4);
the connecting assembly (4) comprises a connecting frame (41) and a connecting piece (42), the connecting frame (41) comprises a main rod (411) and a sliding rod (412), the sliding rod (412) is horizontally arranged, the main rod (411) is arranged along the height direction of the cabinet body (1), a sliding way (1511) matched with the sliding rod (412) is horizontally arranged on the cabinet body (1), and the sliding rod (412) is connected with the inside of the sliding way (1511) in a sliding way; a track (4111) arranged along the length direction of the main rod (411) is arranged on the main rod (411); the connecting piece (42) is fixedly connected with the outer frame body (21), the connecting piece (42) is connected in the track (4111) in a sliding manner, and the glass window (2) can only slide along the track (4111) under the limitation of the track (4111);
a fixing component (6) is arranged between the connecting frame (41) and the glass window (2), and when the experiment window (12) is opened, the fixing component (6) is used for temporarily fixing the position state of the glass window;
the fixing component (6) is located above the connecting piece (42), the fixing component (6) comprises two clamping rods (61), two fixing grooves (4113) are symmetrically formed in the inner wall of the rail (4111), the two clamping rods (61) are connected in the two fixing grooves (4113) in a sliding mode respectively, a reset spring (62) is arranged between the clamping rods (61) and the fixing grooves (4113), and the clamping rods (61) stretch out of the fixing grooves (4113) under the action of the reset spring (62); the top of the connecting piece (42) is provided with two first inclined planes (4212), and the two first inclined planes (4212) are respectively in one-to-one correspondence with the two clamping rods (61); the bottom of the connecting piece (42) is provided with two second inclined planes (4213), the two second inclined planes (4213) correspond to the two clamping rods (61) one by one, the lower surface of the connecting piece (42) is provided with a connecting groove (4214), a clamping plate (63) is connected in the connecting groove (4214) in a sliding manner, and an adjusting piece (64) used for driving the adjusting piece (64) to slide up and down in the connecting groove (4214) is arranged between the clamping plate (63) and the connecting piece (42);
the adjusting piece (64) comprises a plurality of connecting springs (641) and butterfly bolts (642), the connecting springs (641) are fixedly connected between the bottom walls of the clamping plate (63) and the connecting groove (4214), two mounting holes are formed in the face, deviating from the mounting groove (15), of the outer frame body (21), the two mounting holes are in one-to-one correspondence with the two butterfly bolts (642), the mounting holes extend to the connecting groove (4214), the butterfly bolts (642) are connected to the outer frame body (21) through the mounting holes in a threaded mode, the butterfly bolts (642) extend into the space between the bottom walls of the clamping plate (63) and the connecting groove (4214), and the end portions of the butterfly bolts (642) are conical.
2. A fumehood with an air supply means according to claim 1 wherein: be provided with mounting (5) between glass window (2) and the cabinet body (1), when glass window (2) closed experiment window (12), mounting (5) are used for fixed the state of glass window (2).
3. A fumehood with an air supply means according to claim 2 wherein: the fixing piece (5) is located below the connecting piece (42), the fixing piece (5) is fixedly connected to the cabinet body (1), a through hole (4112) matched with the fixing piece (5) for use is formed in the main rod (411), a plug hole (51) is vertically formed in the fixing piece (5), and a plug rod (4211) matched with the plug hole (51) for use is fixedly connected to the lower surface of the corresponding connecting piece (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401890.7A CN113058962B (en) | 2021-04-14 | 2021-04-14 | Fume chamber with air supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401890.7A CN113058962B (en) | 2021-04-14 | 2021-04-14 | Fume chamber with air supply device |
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| Publication Number | Publication Date |
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| CN113058962A CN113058962A (en) | 2021-07-02 |
| CN113058962B true CN113058962B (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110401890.7A Active CN113058962B (en) | 2021-04-14 | 2021-04-14 | Fume chamber with air supply device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208879312U (en) * | 2018-08-20 | 2019-05-21 | 北京美加力实验室装备有限公司 | A kind of air-replenishing type ventilating cabinet |
| CN111069218A (en) * | 2019-12-23 | 2020-04-28 | 北京汉昌绿源环保工程有限公司 | Mechanical air supply and exhaust integrated VAV (vacuum air volume) ventilation cabinet |
| CN211134911U (en) * | 2019-11-08 | 2020-07-31 | 深圳市华航实验室装备有限公司 | Air supplementing and exhausting device of ventilation cabinet |
| CN111947295A (en) * | 2020-07-17 | 2020-11-17 | 郑博文 | Firmly fixed window type air conditioner mounting bracket |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020028648A1 (en) * | 1999-08-11 | 2002-03-07 | Bruce R. Birch | Energy-efficient fume hood |
| US20050245188A1 (en) * | 2004-04-28 | 2005-11-03 | Industrial Technology Research Institute | Biological safety cabinet |
-
2021
- 2021-04-14 CN CN202110401890.7A patent/CN113058962B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208879312U (en) * | 2018-08-20 | 2019-05-21 | 北京美加力实验室装备有限公司 | A kind of air-replenishing type ventilating cabinet |
| CN211134911U (en) * | 2019-11-08 | 2020-07-31 | 深圳市华航实验室装备有限公司 | Air supplementing and exhausting device of ventilation cabinet |
| CN111069218A (en) * | 2019-12-23 | 2020-04-28 | 北京汉昌绿源环保工程有限公司 | Mechanical air supply and exhaust integrated VAV (vacuum air volume) ventilation cabinet |
| CN111947295A (en) * | 2020-07-17 | 2020-11-17 | 郑博文 | Firmly fixed window type air conditioner mounting bracket |
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| CN113058962A (en) | 2021-07-02 |
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