CN221288987U - Automatic alarming and ventilating cabinet for toxic and harmful gas in laboratory - Google Patents
Automatic alarming and ventilating cabinet for toxic and harmful gas in laboratory Download PDFInfo
- Publication number
- CN221288987U CN221288987U CN202323307553.5U CN202323307553U CN221288987U CN 221288987 U CN221288987 U CN 221288987U CN 202323307553 U CN202323307553 U CN 202323307553U CN 221288987 U CN221288987 U CN 221288987U
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- harmful gas
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- cabinet body
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- 231100000331 toxic Toxicity 0.000 title claims abstract description 44
- 230000002588 toxic effect Effects 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 59
- 239000003517 fume Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Abstract
The utility model discloses an automatic alarming fume hood for toxic and harmful gases in a laboratory, which relates to the technical field of fume hoods and comprises a hood body and toxic and harmful gas sensors, wherein the toxic and harmful gas sensors are fixedly arranged on the side wall of the hood body, and both sides of each toxic and harmful gas sensor are electrically connected with an alarm; an electric push rod is fixedly arranged on one side of the cabinet body, the tail end of a piston rod of the electric push rod extends into the cabinet body, a U-shaped plate is fixedly connected to the tail end of the piston rod of the electric push rod, a gas collecting cover is arranged on the inner side of the U-shaped plate, rotating rods are fixedly connected to two sides of the gas collecting cover, and one end of each rotating rod is rotatably connected with the inner wall of the U-shaped plate; the top of the cabinet body is fixedly provided with an exhaust fan, and an air inlet of the exhaust fan is fixedly connected with a connecting pipe. The utility model can automatically alarm, exhaust and ventilate when detecting toxic and harmful gases in the laboratory, and improves the safety of laboratory use.
Description
Technical Field
The utility model relates to the technical field of fume hoods, in particular to an automatic alarming fume hood for toxic and harmful gases in a laboratory.
Background
At present, the common fume hood sold on the market is approximately the same in function and mainly used in laboratories to prevent laboratory workers from breathing toxic and harmful gases to poison, and the common fume hood comprises a hood body and an air duct with a fan at the top of the hood body.
Disclosure of utility model
The present utility model has been made in view of the above-mentioned problems with existing laboratory fume hoods.
Therefore, the utility model aims to provide the automatic alarming fume hood for the toxic and harmful gases in the laboratory, which solves the problems that the fume hood cannot run in time when the toxic and harmful gases leak outside the fume hood in the laboratory in the prior art, and the concentration of the toxic and harmful gases leaked in the laboratory is higher when the toxic and harmful gases are detected by the fume hood.
In order to achieve the above object, the present utility model provides the following technical solutions:
The automatic alarming and ventilating cabinet for the toxic and harmful gas in the laboratory comprises a cabinet body and toxic and harmful gas sensors, wherein the toxic and harmful gas sensors are fixedly arranged on the side wall of the cabinet body, and two sides of each toxic and harmful gas sensor are electrically connected with an alarm;
An electric push rod is fixedly arranged on one side of the cabinet body, the tail end of a piston rod of the electric push rod extends into the cabinet body, a U-shaped plate is fixedly connected to the tail end of the piston rod of the electric push rod, a gas collecting cover is arranged on the inner side of the U-shaped plate, rotating rods are fixedly connected to two sides of the gas collecting cover, and one end of each rotating rod is rotatably connected with the inner wall of the U-shaped plate;
The top of the cabinet body is fixedly provided with an exhaust fan, an air inlet of the exhaust fan is fixedly connected with a connecting pipe, the lower end of the connecting pipe extends to the inside of the cabinet body, the lower end of the connecting pipe is fixedly connected with a corrugated pipe, and the lower end of the corrugated pipe is communicated with the gas collecting hood and is fixedly arranged;
The outer side of the U-shaped plate is provided with a transmission mechanism for driving the rotating rod to rotate in a reciprocating manner.
Preferably, the transmission mechanism comprises a gear and a rack, the gear is arranged on the outer side of the U-shaped plate, the gear is fixedly sleeved with one side of one end of the outer side of the rotating rod, the rack is meshed with the lower side of the gear, the inner thread of the rack is sleeved with a reciprocating screw rod, two ends of the reciprocating screw rod are rotatably connected with side plates, one side of each side plate is fixedly connected with the outer wall of the U-shaped plate, one side of each side plate is fixedly provided with a motor, and the output end of each motor is fixedly connected with one end of the corresponding reciprocating screw rod.
Preferably, a sliding rod is arranged on the upper side of the reciprocating screw rod, two ends of the sliding rod are fixedly connected with corresponding side plates respectively, and one end of the rack is movably sleeved with the rod wall of the sliding rod.
Preferably, the electric push rod is fixedly connected with the outer wall of the cabinet body through the first supporting frame.
Preferably, the motor is fixedly connected with the corresponding side plate through the second supporting frame.
Preferably, an exhaust pipe is fixedly connected with an exhaust port of the exhaust fan.
In the technical scheme, the utility model has the technical effects and advantages that:
1. According to the utility model, the toxic and harmful gas sensor is arranged outside the cabinet body, so that the leakage of toxic and harmful gas in a laboratory can be timely detected, and meanwhile, an alarm can be sent out to remind staff, thereby being convenient to take measures in time.
2. According to the utility model, when toxic and harmful gas leakage is detected through the toxic and harmful gas sensor, the U-shaped plate is pushed out of the cabinet body by the electric push rod, and meanwhile, the motor drives the reciprocating screw rod to rotate, so that the rack moves in a reciprocating manner, and further, the gear is driven to rotate in a reciprocating manner, namely, the rotating rod drives the gas collecting cover to swing in a reciprocating manner, and meanwhile, the exhaust fan is started to exhaust air, namely, the leaked toxic and harmful gas can be rapidly discharged by the swinging gas collecting cover.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a laboratory toxic and harmful gas automatic alarm ventilation cabinet according to the present utility model;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic view of the internal structure of FIG. 2;
Fig. 4 is an enlarged schematic view of the structure of the portion a in fig. 2.
Reference numerals illustrate:
1. A cabinet body; 2. an exhaust fan; 3. an exhaust pipe; 4. a toxic and harmful gas sensor; 5. an electric push rod; 6. a U-shaped plate; 7. a bellows; 8. a connecting pipe; 9. a rotating rod; 10. a gas collecting hood; 11. an alarm; 12. a motor; 13. a gear; 14. a rack; 15. a side plate; 16. a reciprocating screw rod; 17. and a slide bar.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
The embodiment of the utility model discloses an automatic alarming and ventilating cabinet for toxic and harmful gases in a laboratory.
Referring to fig. 1-3, an automatic alarming and ventilating cabinet for toxic and harmful gas in a laboratory comprises a cabinet body 1 and toxic and harmful gas sensors 4, wherein the toxic and harmful gas sensors 4 are fixedly arranged on the side wall of the cabinet body 1, and two sides of each toxic and harmful gas sensor 4 are electrically connected with an alarm 11;
An electric push rod 5 is fixedly arranged on one side of the cabinet body 1, the electric push rod 5 is fixedly connected with the outer wall of the cabinet body 1 through a first supporting frame, so that the electric push rod 5 is more firmly connected with the cabinet body 1, the tail end of a piston rod of the electric push rod 5 extends to the inside of the cabinet body 1, the tail end of the piston rod of the electric push rod 5 is fixedly connected with a U-shaped plate 6, a gas collecting hood 10 is arranged on the inner side of the U-shaped plate 6, two sides of the gas collecting hood 10 are fixedly connected with a rotating rod 9, and one end of the rotating rod 9 is rotatably connected with the inner wall of the U-shaped plate 6;
Referring to fig. 1-3, the top of the cabinet body 1 is fixedly provided with an exhaust fan 2, an air inlet of the exhaust fan 2 is fixedly connected with a connecting pipe 8, the lower end of the connecting pipe 8 extends to the inside of the cabinet body 1, the lower end of the connecting pipe 8 is fixedly connected with a corrugated pipe 7, the lower end of the corrugated pipe 7 is communicated with a gas collecting hood 10 and fixedly arranged, an exhaust pipe 3 is fixedly connected with an exhaust port of the exhaust fan 2, and the extracted toxic and harmful gas is conveniently discharged out of a laboratory.
Referring to fig. 1-3, the transmission mechanism for driving the rotating rod 9 to rotate reciprocally is arranged on the outer side of the U-shaped plate 6, the transmission mechanism comprises a gear 13 and a rack 14, the gear 13 is arranged on the outer side of the U-shaped plate 6, one end of the gear 13 on one side of the rotating rod 9 is fixedly sleeved with the rack 14, the lower side of the gear 13 is meshed with the rack 14, the inner thread of the rack 14 is sleeved with a reciprocating screw rod 16, two ends of the reciprocating screw rod 16 are rotationally connected with side plates 15, one side of the side plates 15 is fixedly connected with the outer wall of the U-shaped plate 6, a motor 12 is fixedly arranged on the outer side of one side of the side plates 15, the output end of the motor 12 is fixedly connected with one end of the reciprocating screw rod 16, the motor 12 is fixedly connected with the corresponding side plates 15 through a second supporting frame, the upper side of the reciprocating screw rod 16 is provided with a sliding rod 17, two ends of the sliding rod 17 are respectively fixedly connected with the corresponding side plates 15, one end of the rack 14 is movably sleeved with the rod wall of the sliding rod 17, and the rack 14 cannot rotate, and can stably slide.
In the utility model, when in use, as the toxic and harmful gas sensor 4 is arranged outside the cabinet body 1, the leakage of toxic and harmful gas in a laboratory can be detected in time, the alarm 11 can give an alarm to remind workers, measures are convenient and timely made, when the toxic and harmful gas sensor 4 detects the leakage of the toxic and harmful gas, the power supply of the electric push rod 5 is switched on, the electric push rod 5 pushes the U-shaped plate 6 out of the cabinet body 1, then the power supply of the motor 12 is switched on, the motor 12 drives the reciprocating screw rod 16 to rotate, so that the rack 14 moves back and forth, and then the gear 13 is driven to rotate back and forth, namely, the rotating rod 9 drives the gas collecting hood 10 to swing back and forth, and meanwhile, the exhaust fan 2 is started to exhaust air, namely, the leaked toxic and harmful gas can be discharged quickly by the swinging gas collecting hood 10.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The automatic alarming and ventilating cabinet for the toxic and harmful gas in the laboratory comprises a cabinet body (1) and toxic and harmful gas sensors (4), and is characterized in that the toxic and harmful gas sensors (4) are fixedly arranged on the side wall of the cabinet body (1), and the two sides of each toxic and harmful gas sensor (4) are electrically connected with an alarm (11);
An electric push rod (5) is fixedly arranged on one side of the cabinet body (1), the tail end of a piston rod of the electric push rod (5) extends into the cabinet body (1), a U-shaped plate (6) is fixedly connected to the tail end of the piston rod of the electric push rod (5), a gas collecting hood (10) is arranged on the inner side of the U-shaped plate (6), rotating rods (9) are fixedly connected to two sides of the gas collecting hood (10), and one end of each rotating rod (9) is rotatably connected with the inner wall of the U-shaped plate (6);
The novel air conditioner is characterized in that an exhaust fan (2) is fixedly arranged at the top of the cabinet body (1), a connecting pipe (8) is fixedly connected to an air inlet of the exhaust fan (2), the lower end of the connecting pipe (8) extends to the inside of the cabinet body (1), a corrugated pipe (7) is fixedly connected to the lower end of the connecting pipe (8), and the lower end of the corrugated pipe (7) is communicated with a gas collecting hood (10) and fixedly arranged;
The outer side of the U-shaped plate (6) is provided with a transmission mechanism for driving the rotating rod (9) to rotate in a reciprocating manner.
2. The laboratory toxic and harmful gas automatic alarm fume chamber according to claim 1, wherein the transmission mechanism comprises a gear (13) and a rack (14), the gear (13) is arranged on the outer side of the U-shaped plate (6), the gear (13) is fixedly sleeved with one side of one end of the outer side of the rotating rod (9), the rack (14) is meshed with the lower side of the gear (13), the inner thread of the rack (14) is sleeved with a reciprocating screw rod (16), two ends of the reciprocating screw rod (16) are rotationally connected with side plates (15), one side of each side plate (15) is fixedly connected with the outer wall of the U-shaped plate (6), one side of each side plate (15) is fixedly provided with a motor (12), and the output end of the motor (12) is fixedly connected with one end of the reciprocating screw rod (16).
3. The automatic laboratory toxic and harmful gas alarming and ventilating cabinet according to claim 2, wherein a sliding rod (17) is arranged on the upper side of the reciprocating screw rod (16), two ends of the sliding rod (17) are fixedly connected with corresponding side plates (15) respectively, and one end of the rack (14) is movably sleeved with a rod wall of the sliding rod (17).
4. The automatic laboratory toxic and harmful gas alarming and ventilating cabinet according to claim 1, wherein the electric push rod (5) is fixedly connected with the outer wall of the cabinet body (1) through a first supporting frame.
5. The laboratory toxic and harmful gas automatic alarm and ventilation cabinet according to claim 2, characterized in that said motor (12) is fixedly connected to the corresponding side plate (15) by means of a second support frame.
6. The automatic laboratory toxic and harmful gas alarming and ventilating cabinet according to claim 1, wherein the exhaust port of the exhaust fan (2) is fixedly connected with an exhaust pipe (3).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221288987U true CN221288987U (en) | 2024-07-09 |
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