CN211739416U - Laboratory air suction device - Google Patents
Laboratory air suction device Download PDFInfo
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- CN211739416U CN211739416U CN202020300001.9U CN202020300001U CN211739416U CN 211739416 U CN211739416 U CN 211739416U CN 202020300001 U CN202020300001 U CN 202020300001U CN 211739416 U CN211739416 U CN 211739416U
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Abstract
The utility model relates to a technical field of the device that induced drafts, and a laboratory device that induced drafts is disclosed, including mounting panel and fan, two risers of the lower extreme bilateral symmetry fixedly connected with of mounting panel, two the riser rotates through ball bearing respectively in opposite directions one side lateral wall and is connected with first screw rod and second screw rod, first screw rod and second screw rod one end welding in opposite directions are in the same place and the screw thread of both rod walls is for mutual reverse screw thread, the outer wall fixedly connected with adjusting motor of riser, adjusting motor's output shaft run through the lateral wall of riser and with the one end fixed connection of second screw rod, the equal threaded connection of rod wall of first screw rod and second screw rod has the movable block, the screw has been seted up to the lateral wall of movable block. The utility model discloses make the efficiency of taking a breath high, can effectively adjust suction efficiency.
Description
Technical Field
The utility model relates to a technical field that induced drafts especially relates to a laboratory device that induced drafts.
Background
At present, the student can appear flue gas or dust and diffuse the situation in whole laboratory usually when doing the chemistry experiment, and present laboratory all is conventional exhaust fan ventilation, and the inefficiency of taking a breath can not be induced draft to laboratory bench department fast and take a breath, and the student often can be uncomfortable because flue gas or dust inhale too much, has seriously influenced student's healthy, is unfavorable for the student to do going on smoothly of chemistry experiment, influences the experiment quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the laboratory among the prior art and all being conventional exhaust fan ventilation, the inefficiency of taking a breath can not be to the laboratory bench department fast air suction take a breath, and the student often can be because flue gas or dust inhale too much and lead to the health uncomfortable, has seriously influenced student's healthy, is unfavorable for the student to do going on smoothly of chemistry experiment, influences the problem of experimental quality, and the laboratory device that induced drafts that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a laboratory air suction device comprises a mounting plate and a fan, wherein the lower end of the mounting plate is fixedly connected with two vertical plates in a bilateral symmetry mode, the side walls of one opposite side of the two vertical plates are respectively and rotatably connected with a first screw rod and a second screw rod through ball bearings, the opposite ends of the first screw rod and the second screw rod are welded together, the screw threads of the rod walls of the first screw rod and the second screw rod are mutually reverse screw threads, the outer wall of each vertical plate is fixedly connected with an adjusting motor, an output shaft of the adjusting motor penetrates through the side wall of the vertical plate and is fixedly connected with one end of the second screw rod, the rod walls of the first screw rod and the second screw rod are both in screw thread connection with a moving block, the side wall of the moving block is provided with a screw hole, the lower end of the moving block is rotatably connected with a push-pull rod, the lower end of the ventilation pipe is uniformly and fixedly communicated with a plurality of air suction cylinders, the lower ends of the air suction cylinders are fixedly communicated with an air suction cover, and an air inlet of the fan is communicated with the ventilation pipe through an air inlet pipe.
Preferably, the four corners of the surface of the mounting plate are provided with mounting screw holes and are in threaded connection with mounting bolts.
Preferably, the same guide rod is fixedly connected between the two vertical plates, and the side wall of the moving block is provided with a guide hole movably sleeved outside the guide rod.
Preferably, two limit telescopic rods are symmetrically and fixedly connected between the lower end of the mounting plate and the upper end of the lifting plate.
Preferably, the side wall of the ventilation pipe is fixedly communicated with an exhaust hood through a corrugated air pipe.
Compared with the prior art, the utility model provides a laboratory device of induced drafting possesses following beneficial effect:
1. this laboratory device that induced drafts, fan through being equipped with, when carrying out the experiment and taking a breath, start the fan, the fan produces suction force and makes the cover department air inlet that induced drafts, rethread aspiration cylinder and ventilation pipe discharge the flue gas, can install the device at the upside that corresponds the laboratory bench through the mounting panel, make the efficiency of taking a breath high, and when needing powerful suction, start adjusting motor, adjusting motor drives first screw rod and second screw rod and rotates, the threaded connection effect of utilizing first screw rod and second screw rod and movable block makes two movable blocks remove, and then adjust the relative height of lifter plate through the push-pull rod, can make the cover that induced drafts be located suitable height, the cover that induced drafts can provide bigger suction force when descending, can effectively adjust suction efficiency.
2. This laboratory device that induced drafts, through corrugated pipe and the exhaust hood that is equipped with, people hand the exhaust hood can the pertinence aspirate key department, the pertinence of being convenient for is used.
And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make the efficiency of taking a breath high, can effectively adjust suction efficiency.
Drawings
Fig. 1 is a schematic structural view of a laboratory air suction device provided by the present invention;
fig. 2 is a schematic structural diagram of a part a of the air suction device in the laboratory.
In the figure: the device comprises a mounting plate 1, a fan 2, a vertical plate 3, a first screw rod 4, a second screw rod 5, an adjusting motor 6, a moving block 7, a push-pull rod 8, a lifting plate 9, a connecting block 10, a ventilation pipe 11, an air suction barrel 12, an air suction cover 13, a mounting bolt 14, a guide rod 15, a limiting telescopic rod 16, a corrugated air pipe 17 and an air suction cover 18.
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.
Referring to fig. 1-2, a laboratory air suction device comprises a mounting plate 1 and a fan 2, wherein the lower end of the mounting plate 1 is fixedly connected with two vertical plates 3 in bilateral symmetry, the side walls of the opposite sides of the two vertical plates 3 are respectively connected with a first screw rod 4 and a second screw rod 5 in a rotating manner through ball bearings, the opposite ends of the first screw rod 4 and the second screw rod 5 are welded together, the screw threads of the rod walls of the first screw rod 4 and the second screw rod 5 are reverse screw threads, the outer wall of the vertical plate 3 is fixedly connected with an adjusting motor 6, an output shaft of the adjusting motor 6 penetrates through the side walls of the vertical plate 3 and is fixedly connected with one end of the second screw rod 5, the rod walls of the first screw rod 4 and the second screw rod 5 are both in a threaded connection with a moving block 7, the side wall of the moving block 7 is provided with screw holes, the lower end of the moving block 7 is rotatably connected with push, the lower end of the ventilation pipe 11 is uniformly and fixedly communicated with a plurality of suction cylinders 12, the lower end of each suction cylinder 12 is fixedly communicated with a suction hood 13, and the air inlet of the fan 2 is communicated with the ventilation pipe 11 through an air inlet pipe.
The surface four corners department of mounting panel 1 has all seted up installation screw and threaded connection has mounting bolt 14.
The same guide rod 15 is fixedly connected between the two vertical plates 3, and the side wall of the moving block 7 is provided with a guide hole which is movably sleeved outside the guide rod 15.
Two limit telescopic rods 16 are symmetrically and fixedly connected between the lower end of the mounting plate 1 and the upper end of the lifting plate 9.
The side wall of the ventilation pipe 11 is fixedly communicated with a draught hood 18 through a corrugated air pipe 17.
In the utility model, when in use, the fan 2 is started through the fan 2, when experiment ventilation is carried out, the fan 2 generates suction force to lead the air inlet at the suction hood 13, then the flue gas is discharged through the suction barrel 12 and the ventilation pipe 11, the device can be arranged at the upper side of the corresponding experiment table through the mounting plate 1, so that the ventilation efficiency is high, when strong suction is needed, the adjusting motor 6 is started, the adjusting motor 6 drives the first screw rod 4 and the second screw rod 5 to rotate, the two moving blocks 7 are moved by utilizing the threaded connection effect of the first screw rod 4 and the second screw rod 5 and the moving blocks 7, further the relative height of the lifting plate 9 is adjusted through the push-pull rod 8, the suction hood 13 can be positioned at a proper height, when the suction hood 13 descends, larger suction force can be provided, the suction efficiency can be effectively adjusted, through the corrugated air pipe 17 and the suction hood 18, people can pertinently suck the key parts by holding the air draft cover 18, and the targeted use is convenient.
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. A laboratory air draft device comprises a mounting plate (1) and a fan (2), and is characterized in that the lower end of the mounting plate (1) is bilaterally and symmetrically fixedly connected with two vertical plates (3), the side walls of one opposite side of the two vertical plates (3) are respectively and rotatably connected with a first screw (4) and a second screw (5) through ball bearings, the opposite ends of the first screw (4) and the second screw (5) are welded together, the threads of the rod walls of the first screw and the second screw are reverse threads, the outer wall of the vertical plate (3) is fixedly connected with an adjusting motor (6), an output shaft of the adjusting motor (6) penetrates through the side wall of the vertical plate (3) and is fixedly connected with one end of the second screw (5), the rod walls of the first screw (4) and the second screw (5) are both in threaded connection with a movable block (7), and the side wall of the movable block (7) is provided, the lower extreme of movable block (7) rotates and is connected with push-and-pull rod (8), two the lower extreme of push-and-pull rod (8) rotates and is connected with same lifter plate (9), the lower extreme of lifter plate (9) is through a plurality of connecting block (10) fixedly connected with ventilation pipe (11), the even fixed intercommunication of lower extreme of ventilation pipe (11) has a plurality of aspiration channel (12), the fixed intercommunication of lower extreme of aspiration channel (12) has aspiration cover (13), the air intake of fan (2) passes through air-supply line and ventilation pipe (11) intercommunication.
2. The laboratory air draft device according to claim 1, wherein the four corners of the surface of the mounting plate (1) are provided with mounting screw holes and are in threaded connection with mounting bolts (14).
3. The laboratory air draft device according to claim 1, wherein the same guide rod (15) is fixedly connected between the two vertical plates (3), and a guide hole movably sleeved outside the guide rod (15) is formed in a side wall of the moving block (7).
4. A laboratory suction device according to claim 1, characterized in that two limit telescopic rods (16) are symmetrically and fixedly connected between the lower end of the mounting plate (1) and the upper end of the lifting plate (9).
5. The laboratory air draft device according to claim 1, wherein the side wall of the ventilation pipe (11) is fixedly communicated with an air draft hood (18) through a corrugated air pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020300001.9U CN211739416U (en) | 2020-03-12 | 2020-03-12 | Laboratory air suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020300001.9U CN211739416U (en) | 2020-03-12 | 2020-03-12 | Laboratory air suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211739416U true CN211739416U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020300001.9U Active CN211739416U (en) | 2020-03-12 | 2020-03-12 | Laboratory air suction device |
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| Country | Link |
|---|---|
| CN (1) | CN211739416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117947903A (en) * | 2024-03-25 | 2024-04-30 | 西南石油大学 | Assembled ceiling for building |
-
2020
- 2020-03-12 CN CN202020300001.9U patent/CN211739416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117947903A (en) * | 2024-03-25 | 2024-04-30 | 西南石油大学 | Assembled ceiling for building |
| CN117947903B (en) * | 2024-03-25 | 2024-06-04 | 西南石油大学 | Assembled ceiling for building |
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