CN210450241U - Fume hood for laboratory - Google Patents
Fume hood for laboratory Download PDFInfo
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- CN210450241U CN210450241U CN201921086250.6U CN201921086250U CN210450241U CN 210450241 U CN210450241 U CN 210450241U CN 201921086250 U CN201921086250 U CN 201921086250U CN 210450241 U CN210450241 U CN 210450241U
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- cabinet body
- lead screw
- exhaust fan
- laboratory
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Abstract
The utility model discloses a fume chamber for laboratory, belonging to the field of laboratory equipment; a ventilating cabinet for a laboratory comprises a cabinet body and a workbench, wherein a slide rod is slidably connected to the top of the cabinet body, a reciprocating mechanism is connected inside the shell, one end, arranged inside the shell, of the slide rod is connected with the reciprocating mechanism, a lead screw is rotatably connected to the side wall of an installation block, one end, far away from the installation block, of the lead screw is connected with a transmission assembly, an exhaust fan is in threaded connection with the rod wall, located between the transmission assembly and the installation block, of the lead screw, an air outlet of the exhaust fan is connected with an air pipe, and a telescopic rod is connected between; the utility model discloses a reciprocating mechanism work drives the exhaust fan and reciprocates at the internal portion of cabinet, drives the lead screw through drive assembly and rotates, makes threaded connection also can control the removal on the lead screw pole wall to make the exhaust fan about the internal portion of cabinet about reciprocating motion air exhaust, improve device's the efficiency of airing exhaust.
Description
Technical Field
The utility model relates to a laboratory paraphernalia technical field especially relates to a fume chamber is used in laboratory.
Background
The fume hood mainly has an exhaust function, various harmful gases, odor, moisture and flammable, explosive and corrosive substances are generated in the experiment operation in a chemical laboratory, and the fume hood is used near a pollution source in order to protect the safety of a user and prevent the diffusion of the pollutants in the experiment to the laboratory.
In view of improving the experimental environment, experiments performed on the laboratory bench are gradually transferred to the fume hood, which requires functions in the fume hood most suitable for the use of the equipment. In particular, most newly built laboratories require air conditioning, so the number of the ventilation cabinets used is required to be included in the planning of the air conditioning system in the initial design stage of the building. As the fume hood occupies a very important position in a biochemical laboratory, the number of the fume hoods used is increased dramatically from the aspects of improving the environment of the laboratory, improving the labor sanitary condition, improving the working efficiency and the like. Accordingly, ventilation ducts, piping, wiring, exhaust air, and the like are important problems for laboratory construction. The fume hood is used for discharging harmful gas generated in experiments and protecting the health of experimenters, namely, has high safety and excellent operability.
The existing ventilation cabinet for the laboratory is mostly provided with an exhaust fan at the top of the cabinet body, harmful gas in the cabinet body is exhausted through the exhaust fan, but the exhaust fan is fixed in position and far away from the internal part of the cabinet, all gas in the internal part of the cabinet can not be exhausted, the exhaust efficiency is low, and the ventilation cabinet for the laboratory is provided for solving the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem in the prior art, and the fume chamber is used in laboratory that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fume chamber is used in laboratory, includes the cabinet body and workstation, the workstation is connected on cabinet body diapire, be connected with the cabinet door on the cabinet side wall, cabinet body top is connected with the casing, cabinet body top sliding connection has the slide bar, the slide bar passes inside the casing extends to the casing, casing internal connection has reciprocating mechanism, the inside one end of casing is arranged in to the slide bar links to each other with reciprocating mechanism, the one end that the cabinet body is arranged in to the slide bar is connected with the installation piece, it is connected with the lead screw to rotate on the installation piece lateral wall, the one end that the installation piece was kept away from to the lead screw is connected with drive assembly, threaded connection has the exhaust fan on the pole wall that the lead screw is located between drive assembly and the installation piece, the gas vent of exhaust fan is connected with.
Preferably, the reciprocating mechanism comprises a driving cam and a roller, the driving cam is connected to the inner side wall of the shell, the roller is connected to one end, inside the shell, of the sliding rod, the driving cam abuts against the roller, and the sliding rod is arranged on the rod wall between the roller and the inner wall of the bottom of the shell and is sleeved with a spring.
Preferably, the transmission assembly comprises a gear and a rack, the gear is connected to one end, far away from the installation block, of the screw rod, the rack is connected to the inner wall of the bottom of the cabinet body, and the gear is meshed with the rack.
Preferably, a threaded hole is drilled in the side wall of the exhaust fan, and the screw rod is connected with the exhaust fan through the threaded hole in a threaded mode.
Preferably, the air pipe is a hose.
Compared with the prior art, the utility model provides a fume chamber is used in laboratory possesses following beneficial effect:
1. this fume chamber is used in laboratory, work through the inside reciprocating mechanism of casing drives the slide bar reciprocating motion rather than linking to each other, the slide bar then can drive the installation piece that links to each other rather than reciprocating sliding from top to bottom, make the lead screw can reciprocate, thereby make the lead screw drive the exhaust fan that links to each other rather than the screw thread reciprocate and exhaust harmful gas through soft trachea discharge, when the lead screw reciprocates, can drive the lead screw through drive assembly and rotate, because exhaust fan one end is spacing by the telescopic link, so the exhaust fan can remove about on the lead screw pole wall, thereby the exhaust fan can exhaust in cabinet internal portion from top to bottom reciprocating motion, the efficiency of airing exhaust is improved.
2. This fume chamber is used in laboratory, drive cam rotate and drive rather than the gyro wheel removal that offsets, and the gyro wheel then can drive the slide bar removal rather than linking to each other, and the spring slide bar of being convenient for resets and makes the slide bar can carry out reciprocating sliding to make the slide bar drive rather than the installation piece reciprocating motion who links to each other.
3. This laboratory is with fume chamber, the lead screw removes and can drive the gear removal, and the gear then can be along the rack rotation rather than meshing mutually, makes the gear drive lead screw rotate to the exhaust fan that the messenger passes through screw hole threaded connection on the lead screw pole wall moves on the pole wall of lead screw.
Drawings
Fig. 1 is a schematic structural view of a fume hood for a laboratory according to the present invention;
fig. 2 is a schematic view of an internal structure of a laboratory fume hood according to the present invention;
fig. 3 is one of schematic structural diagrams of an internal structure of a laboratory fume hood housing according to the present invention;
fig. 4 is the utility model provides a fume chamber casing internal structure schematic diagram is used in laboratory.
In the figure: 1. a cabinet body; 101. a cabinet door; 2. a work table; 3. a housing; 4. mounting blocks; 401. a telescopic rod; 5. a screw rod; 6. an exhaust fan; 601. an air tube; 7. a gear; 8. a rack; 9. a drive cam; 10. a roller; 11. a spring; 12. a slide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-2, a ventilating hood for a laboratory, which comprises a cabinet body 1 and a workbench 2, the workbench 2 is connected to the bottom wall of the cabinet body 1, a cabinet door 101 is connected to the side wall of the cabinet body 1, the top of the cabinet body 1 is connected with a shell 3, the top of the cabinet body 1 is connected with a slide rod 12 in a sliding manner, the slide rod 12 penetrates through the shell 3 and extends into the shell 3, a reciprocating mechanism is connected to the inside of the shell 3, one end of the slide rod 12, which is arranged inside the shell 3, is connected with a mounting block 4, one end of the slide rod 12, which is arranged inside the cabinet body 1, is connected with a lead screw 5 in a rotating manner, one end of the lead screw 5, which is far away from the mounting block 4, is connected with a transmission assembly, an exhaust fan 6 is in threaded connection with the rod wall between the transmission assembly and;
the air pipe 601 is a hose;
through the inside reciprocating mechanism work of casing 3 drive rather than the slide bar 12 reciprocating motion that links to each other, slide bar 12 then can drive the reciprocating motion from top to bottom of installation piece 4 that links to each other rather than, make lead screw 5 can reciprocate, thereby make lead screw 5 drive exhaust fan 6 that links to each other rather than the screw reciprocate and exhaust harmful gas through soft trachea 601, when lead screw 5 reciprocates, can drive lead screw 5 through drive assembly and rotate, because 6 one end of exhaust fan is spacing by telescopic link 401, so exhaust fan 6 can control about 5 walls of lead screw, thereby exhaust fan 6 can be inside about the cabinet body 1 about reciprocating motion exhaust air from top to bottom during, the efficiency of airing exhaust is improved.
Example 2:
referring to fig. 3-4, a fume hood for a laboratory, which is substantially the same as embodiment 1, except that the reciprocating mechanism comprises a driving cam 9 and a roller 10, the driving cam 9 is connected with the inner side wall of the housing 3, the roller 10 is connected with one end of a sliding rod 12 arranged in the housing 3, the driving cam 9 abuts against the roller 10, and the sliding rod 12 is arranged on the rod wall between the roller 10 and the inner wall of the bottom of the housing 3 and is sleeved with a spring 11;
the driving cam 9 rotates to drive the roller 10 against the driving cam to move, the roller 10 drives the slide rod 12 connected with the driving cam to move, the spring 11 is convenient for the slide rod 12 to reset so that the slide rod 12 can slide in a reciprocating manner, and therefore the slide rod 12 drives the mounting block 4 connected with the slide rod 12 to move in a reciprocating manner.
Example 3:
referring to fig. 2, a laboratory fume hood is basically the same as that of embodiment 2, except that a transmission assembly comprises a gear 7 and a rack 8, the gear 7 is connected to one end of a screw rod 5 far away from a mounting block 4, the rack 8 is connected to the inner wall of the bottom of a cabinet body 1, and the gear 7 is meshed with the rack 8;
a threaded hole is drilled in the side wall of the exhaust fan 6, and the screw rod 5 is in threaded connection with the exhaust fan 6 through the threaded hole;
the screw 5 moves to drive the gear 7 to move, the gear 7 rotates along the rack 8 meshed with the gear, the gear 7 drives the screw 5 to rotate, and therefore the exhaust fan 6 which is connected to the rod wall of the screw 5 through the threaded hole in a threaded mode moves on the rod wall of the screw 5.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a fume chamber is used in laboratory, includes the cabinet body (1) and workstation (2), workstation (2) are connected on the cabinet body (1) diapire, be connected with cabinet door (101) on the cabinet body (1) lateral wall, a serial communication port, cabinet body (1) top is connected with casing (3), cabinet body (1) top sliding connection has slide bar (12), slide bar (12) pass casing (3) and extend to inside casing (3), casing (3) internal connection has reciprocating mechanism, the inside one end of casing (3) is arranged in to slide bar (12) links to each other with reciprocating mechanism, the inside one end of cabinet body (1) is arranged in to slide bar (12) is connected with installation piece (4), it is connected with lead screw (5) to rotate on installation piece (4) lateral wall, the one end that installation piece (4) was kept away from lead screw (5) is connected with drive assembly, threaded connection has the exhaust on lead screw (5) is located the pole wall between drive assembly and installation piece ( Fan (6), the gas vent of exhaust fan (6) is connected with trachea (601), be connected with telescopic link (401) between the lateral wall of exhaust fan (6) and the lateral wall of installation piece (4).
2. The laboratory fume hood according to claim 1, wherein the reciprocating mechanism comprises a driving cam (9) and a roller (10), the driving cam (9) is connected to the inner side wall of the housing (3), the roller (10) is connected to one end of a sliding rod (12) arranged inside the housing (3), the driving cam (9) abuts against the roller (10), and the sliding rod (12) is arranged on the rod wall between the roller (10) and the inner wall of the bottom of the housing (3) and sleeved with a spring (11).
3. The laboratory fume hood according to claim 2, wherein the transmission assembly comprises a gear (7) and a rack (8), the gear (7) is connected to one end of the screw rod (5) far away from the mounting block (4), the rack (8) is connected to the inner wall of the bottom of the cabinet body (1), and the gear (7) is meshed with the rack (8).
4. A laboratory fume hood according to any of claims 1 to 3, characterized in that the side wall of the exhaust fan (6) is provided with a threaded hole, and the screw rod (5) is in threaded connection with the exhaust fan (6) through the threaded hole.
5. A laboratory fume hood according to any of the claims 1 to 3, characterized in that the air pipe (601) is a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086250.6U CN210450241U (en) | 2019-07-08 | 2019-07-08 | Fume hood for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086250.6U CN210450241U (en) | 2019-07-08 | 2019-07-08 | Fume hood for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210450241U true CN210450241U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921086250.6U Active CN210450241U (en) | 2019-07-08 | 2019-07-08 | Fume hood for laboratory |
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| Country | Link |
|---|---|
| CN (1) | CN210450241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530880A (en) * | 2020-06-05 | 2020-08-14 | 江苏大橡木集团有限公司 | Ventilation cabinet air speed alarm system device |
-
2019
- 2019-07-08 CN CN201921086250.6U patent/CN210450241U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530880A (en) * | 2020-06-05 | 2020-08-14 | 江苏大橡木集团有限公司 | Ventilation cabinet air speed alarm system device |
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