Detection equipment for evaluating and filtering poisonous and harmful filter

Abstract

The utility model provides detection equipment for evaluating and filtering a poisonous and harmful gas filter, which comprises a reference seat and a poisonous and harmful gas detection equipment main body, a rough filtration detection mechanism is arranged on the inner wall of the reference seat, a convenient positioning mechanism is arranged at the bottom of the reference seat, and the rough filtration detection mechanism comprises a transparent cylinder; the transparent cylinder is fixedly installed on the inner wall of the reference seat, the bottom of the transparent cylinder is detachably connected with the insertion ring piece, the bottom of the insertion ring piece is fixedly provided with the elastic piece, through the design of the cylindrical suction fan, detected air can be absorbed and then is conveyed to a probe of the toxic and harmful gas detection equipment main body from the top end of the drainage pipe, and the toxic and harmful gas is detected. The detection effect of the toxic and harmful gas detection equipment main body is improved in a manner of accelerating air flow, and air absorbed by the cylindrical suction fan can be subjected to rough filtration treatment through the design of the rough filter screen cylinder, so that impurities such as relatively large dust in the air are filtered out, an interference source is removed, and the detection effect of the toxic and harmful gas detection equipment main body is guaranteed.

Description

Technical Field

[0001] The utility model relates to a detection device for evaluating a filter for toxic and harmful gases, belonging to the technical field of gas detection. Background Art

[0002] During the process of laboratory testing and other work, toxic and harmful gases will be generated. Therefore, it is necessary to set up a filter for toxic and harmful gases to filter the gases. During the operation of the filter for toxic and harmful gases, it is necessary to design a detection device for toxic and harmful gases to detect the effect of purifying the air.

[0003] The Chinese patent discloses a detection device for toxic and harmful gases, with the publication number CN220795188U. The technical solution disclosed in this patent document is as follows: It includes a support box and a toxic gas detector. The front and rear sides of the support box are both open. A plurality of universal wheels arranged in an array are fixedly installed at the bottom end of the support box. An L-shaped plate is fixedly installed at the top end of the support box. Two symmetrically arranged limiting rods are fixedly installed between the bottom wall of the horizontal section of the L-shaped plate and the top end of the support box. A slider is slidably installed between the two limiting rods.

[0004] In order to solve the problem that the air fluidity is small and the detection efficiency is not high enough, the prior art is to use a designed blowing component to accelerate the air flow for treatment. However, there will still be a situation where larger dust and other impurities in the air cannot be filtered out. The dust and other impurities will act as interference sources and affect the accuracy of gas detection, and it is very easy to cause misjudgment. Summary of the Utility Model

[0005] Based on the above background, the purpose of the present utility model is to provide a detection device for evaluating a filter for toxic and harmful gases to solve the problems described in the background art.

[0006] In order to achieve the above utility model purpose, the present utility model provides the following technical solutions:

[0007] A detection device for evaluating a filter for toxic and harmful gases includes a reference base and a main body of a detection device for toxic and harmful gases. A coarse filtration detection mechanism is arranged on the inner wall of the reference base, and a convenient positioning mechanism is arranged at the bottom of the reference base.

[0008] The coarse filter detection mechanism includes a transparent cylinder, which is fixedly installed on the inner wall of the reference base. The bottom of the transparent cylinder is detachably connected with a plug-in ring part. The bottom of the plug-in ring part is fixedly installed with an elastic part. The bottom of the elastic part is fixedly installed with a receiving ring. The bottom of the receiving ring is fixedly installed with a coarse filter cylinder. The top of the receiving ring is fixedly connected with a rubber cover. The top of the rubber cover is fixedly connected with the bottom of the plug-in ring part. A partition is fixedly installed on the inner wall of the transparent cylinder, and the toxic and harmful gas detection equipment main body is fixedly installed on the top of the partition.

[0009] Preferably, a connecting rod is fixedly installed on the inner wall of the receiving ring. One end of the connecting rod away from the inner wall of the receiving ring is fixedly installed with a protective cover, and a vibration motor is fixedly installed at the bottom of the inner wall of the protective cover.

[0010] Preferably, a cylindrical suction fan is fixedly installed on the inner wall of the transparent cylinder below the partition. An alarm lamp is fixedly installed on the top of the partition, and the alarm lamp is electrically connected to the toxic and harmful gas detection equipment main body through an external controller.

[0011] Preferably, a drainage pipe is fixedly connected to the top of the partition. The top of the transparent cylinder is threadedly connected with a circular cover, and an exhaust square cylinder is fixedly connected to the center of the top of the circular cover.

[0012] Preferably, an inner support frame is fixedly installed on the inner wall of the exhaust square cylinder. An elastic cord is fixedly connected to the top of the inner support frame, and a square cover is fixedly connected to the top of the elastic cord. The outer wall of the square cover is slidably connected to the inner wall of the exhaust square cylinder.

[0013] Preferably, the convenient positioning mechanism includes a support rod, which is fixedly installed at the bottom of the reference base. The bottom of the support rod is fixedly installed with a positioning seat, and a threaded rod is threadedly connected to the inner wall of the positioning seat.

[0014] Preferably, the threaded end of the threaded rod is rotatably connected with a positioning block. One side of the positioning block close to the outer wall of the positioning seat is welded with a sliding rod, and the outer wall of the sliding rod is slidably connected to the inner wall of the positioning seat.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] Through the design of the cylindrical suction fan, the air to be detected can be absorbed and then transported to the probe of the toxic and harmful gas detection equipment main body from the top end of the drainage pipe. By accelerating the air flow, the detection effect of the toxic and harmful gas detection equipment main body is improved. Through the design of the coarse filter cylinder, the air absorbed by the cylindrical suction fan can be coarsely filtered to filter out larger dust and other impurities inside the air, removing this interference source and ensuring the detection effect of the toxic and harmful gas detection equipment main body. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0019] Figure 2 It is a connection structure schematic diagram of the plug-in ring part and the coarse filter barrel of the present invention;

[0020] Figure 3 It is a structure schematic diagram of the receiving ring and the vibration motor of the present invention;

[0021] Figure 4 It is an internal structure schematic diagram of the transparent barrel of the present invention;

[0022] Figure 5 It is an internal structure schematic diagram of the exhaust square barrel of the present invention;

[0023] Figure 6 It is a structure schematic diagram of the positioning seat of the present invention.

[0024] In the figure: 1. Reference seat; 11. Main body of the toxic and harmful gas detection device; 2. Coarse filter detection mechanism; 21. Transparent barrel; 211. Cylindrical suction fan; 212. Partition board; 213. Drainage pipe; 214. Alarm lamp; 215. Round cover; 216. Exhaust square barrel; 217. Inner support frame; 218. Elastic cord; 219. Square cover; 22. Plug-in ring part; 23. Elastic part; 24. Receiving ring; 241. Connecting rod; 242. Protective cover; 243. Vibration motor; 25. Rubber cover; 26. Coarse filter barrel; 3. Convenient positioning mechanism; 31. Support rod; 32. Positioning seat; 33. Threaded rod; 34. Positioning block; 35. Sliding rod. Detailed Embodiments

[0025] The following will further specifically illustrate the technical solutions of the present invention through specific embodiments and in combination with the drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any formal modification and / or change made to the present invention will fall within the protection scope of the present invention.

[0026] In the present utility model, unless otherwise specified, all parts and percentages are in weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are conventional methods in the art unless otherwise specified. The components or equipment in the following embodiments are general standard components or components known to those skilled in the art unless otherwise specified, and their structures and principles can be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0027] The following will make a detailed description of the embodiments of the present utility model with reference to the accompanying drawings. In the following detailed description, for the convenience of explanation, many specific details are elaborated to provide a comprehensive understanding of the embodiments of the present utility model. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0028] As Figures 1-5 shown, a detection device for evaluating a filter for toxic and harmful substances includes a reference base 1 and a main body 11 of a toxic and harmful gas detection device. A coarse filter detection mechanism 2 is provided on the inner wall of the reference base 1, and a convenient positioning mechanism 3 is provided at the bottom of the reference base 1. The coarse filter detection mechanism 2 includes a transparent cylinder 21 fixedly installed on the inner wall of the reference base 1. The bottom of the transparent cylinder 21 is detachably connected with a plug-in ring member 22. An elastic member 23 is fixedly installed at the bottom of the plug-in ring member 22. A receiving ring 24 is fixedly installed at the bottom of the elastic member 23. A coarse filter mesh cylinder 26 is fixedly installed at the bottom of the receiving ring 24. A rubber cover 25 is fixedly connected to the top of the receiving ring 24. The top of the rubber cover 25 is fixedly connected to the bottom of the plug-in ring member 22. A partition 212 is fixedly installed on the inner wall of the transparent cylinder 21. The main body 11 of the toxic and harmful gas detection device is fixedly installed on the top of the partition 212. The coarse filter mesh cylinder 26 is used to perform a coarse filtration process on the air absorbed by the cylindrical suction fan 211, filtering out larger dust and other impurities inside the air, and by removing this interference source, ensuring the detection effect of the main body 11 of the toxic and harmful gas detection device. The plug-in ring member 22 is detachably connected to the bottom of the transparent cylinder 21 by bolts. Through the design of the elastic member 23 and the rubber cover 25, the receiving ring 24 is elastically connected to the plug-in ring member 22, increasing the effect of the vibration motor 243 driving the coarse filter mesh cylinder 26 to vibrate and improving the sufficiency of self-cleaning.

[0029] In this embodiment, a connecting rod 241 is fixedly installed on the inner wall of the receiving ring 24. One end of the connecting rod 241 away from the inner wall of the receiving ring 24 is fixedly installed with a protective cover 242. A vibration motor 243 is fixedly installed at the bottom of the inner wall of the protective cover 242. A cylindrical suction fan 211 is fixedly installed on the inner wall of the transparent cylinder 21 and is located below the partition 212. An alarm lamp 214 is fixedly installed on the top of the partition 212. The alarm lamp 214 is electrically connected to the main body 11 of the toxic and harmful gas detection device through an external controller. A drainage pipe 213 is fixedly connected to the top of the partition 212. The top of the transparent cylinder 21 is threadedly connected with a circular cover 215. The center of the top of the circular cover 215 is fixedly connected with an exhaust square cylinder 216. An inner support frame 217 is fixedly installed on the inner wall of the exhaust square cylinder 216. The top of the inner support frame 217 is fixedly connected with an elastic cord 218. The top of the elastic cord 218 is fixedly connected with a square cover 219. The outer wall of the square cover 219 is slidably connected to the inner wall of the exhaust square cylinder 216. By controlling the operation of the cylindrical suction fan 211, the air to be detected can be absorbed and then conveyed to the probe of the main body 11 of the toxic and harmful gas detection device from the top end of the drainage pipe 213. By accelerating the air flow, the detection effect of the main body 11 of the toxic and harmful gas detection device can be improved. The main body 11 of the toxic and harmful gas detection device is an existing structure and can detect the information of the existence of toxic and harmful gases. Then, by controlling the alarm lamp 214 to work through an external controller, a prompt is given to the user. When the cylindrical suction fan 211 is idle, by controlling the vibration motor 243 to work, the coarse filter cylinder 26 can be driven to vibrate, so that the dust attached to the outer surface of the coarse filter cylinder 26 falls off, realizing the function of self-cleaning. After the cylindrical suction fan 211 runs, the square cover 219 can be stretched by the air pressure to move upward a certain distance along the elastic cord 218 for exhaust. After the cylindrical suction fan 211 pauses working, the square cover 219 is driven to reset by the initial elastic force of the elastic cord 218, completing the dust-proof sealing treatment of the inner cavity of the transparent cylinder 21.

[0030] In this embodiment, the convenient positioning mechanism 3 includes a support rod 31. The support rod 31 is fixedly installed at the bottom of the reference seat 1. The bottom of the support rod 31 is fixedly installed with a positioning seat 32. A threaded rod 33 is threadedly connected to the inner wall of the positioning seat 32. The threaded end of the threaded rod 33 is rotatably connected with a positioning block 34. One side of the positioning block 34 close to the outer wall of the positioning seat 32 is welded with a sliding rod 35. The outer wall of the sliding rod 35 is slidably connected to the inner wall of the positioning seat 32. Move the whole positioning seat 32 into the exhaust pipe of the externally connected toxic and harmful filter. Then rotate the threaded rod 33 to make the positioning block 34 move towards the inner wall of the pipe. After firmly fitting to the inner wall of the pipe, the positioning process of this structure is completed, which is convenient for the user to use.

[0031] The working principle of a detection device for evaluating a filter for toxic and harmful substances of the present utility model is as follows: The positioning seat 32 is integrally moved into the exhaust pipe of the externally connected filter for toxic and harmful substances. Then, the threaded rod 33 is rotated to position the transparent cylinder 21. Next, the cylindrical suction fan 211 is controlled to operate to suck the air to be detected and is conveyed from the top of the diversion pipe 213 to the probe of the toxic and harmful gas detection device main body 11. If the toxic and harmful gas detection device main body 11 detects the presence of toxic and harmful gases, immediately the alarm lamp 214 is controlled to work and light up to give a prompt to the user. The coarse filter cylinder 26 is used for coarsely filtering the air sucked by the cylindrical suction fan 211 to ensure the detection effect of the toxic and harmful gas detection device main body 11.

[0032] Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A detection device for evaluating and filtering toxic and harmful filters, comprising a reference seat (1) and a toxic and harmful gas detection device body (11), characterized in that: A coarse filtration detection mechanism (2) is arranged on the inner wall of the reference seat (1), and a convenient positioning mechanism (3) is arranged at the bottom of the reference seat (1). The coarse filtration detection mechanism (2) comprises a transparent cylinder (21), and the transparent cylinder (21) is fixedly mounted on the inner wall of the reference seat (1). The bottom of the transparent cylinder (21) is detachably connected with a plug-in ring (22), and the bottom of the plug-in ring (22) is fixedly mounted with an elastic member (23), and the bottom of the elastic member (23) is fixedly mounted with a receiving ring (24), and the bottom of the receiving ring (24) is fixedly mounted with a coarse filtration mesh cylinder (26), and the top of the receiving ring (24) is fixedly connected with a rubber cover (25), and the top of the rubber cover (25) is fixedly connected to the bottom of the plug-in ring (22). A partition (212) is fixedly mounted on the inner wall of the transparent cylinder (21), and the main body (11) of the toxic and harmful gas detection device is fixedly mounted on the top of the partition (212).

2. The detection device for evaluating and filtering toxic and harmful filters according to claim 1, characterized in that: A connecting rod (241) is fixedly mounted on the inner wall of the receiving ring (24), a protective cover (242) is fixedly mounted on one end of the connecting rod (241) away from the inner wall of the receiving ring (24), and a vibration motor (243) is fixedly mounted on the bottom of the inner wall of the protective cover (242).

3. The detection device for evaluating and filtering toxic and harmful filters according to claim 2 is characterized in that: A cylindrical suction fan (211) located below the partition (212) is fixedly mounted on the inner wall of the transparent cylinder (21), and an alarm light (214) is fixedly mounted on the top of the partition (212). The alarm light (214) is connected to the main body (11) of the toxic and harmful gas detection device via an external controller via an electrical signal.

4. The detection device for evaluating and filtering toxic and harmful filters according to claim 3 is characterized in that: The top of the partition (212) is fixedly connected to a drainage pipe (213), the top of the transparent cylinder (21) is threadedly connected to a circular cover (215), and the center of the top of the circular cover (215) is fixedly connected to an exhaust square cylinder (216).

5. The detection device for evaluating and filtering toxic and harmful filters according to claim 4, characterized in that: An inner support frame (217) is fixedly mounted on the inner wall of the exhaust square tube (216); an elastic rope (218) is fixedly connected to the top of the inner support frame (217); a square cover (219) is fixedly connected to the top of the elastic rope (218); and an outer wall of the square cover (219) is slidably connected to the inner wall of the exhaust square tube (216).

6. The detection device for evaluating and filtering toxic and harmful filters according to claim 1, characterized in that: The convenient positioning mechanism (3) comprises a support rod (31), wherein the support rod (31) is fixedly mounted on the bottom of the reference seat (1), a positioning seat (32) is fixedly mounted on the bottom of the support rod (31), and a threaded rod (33) is threadedly connected to the inner wall of the positioning seat (32).

7. The detection device for evaluating and filtering toxic and harmful filters according to claim 6, characterized in that: The threaded end of the threaded rod (33) is rotatably connected to a positioning block (34), and a sliding rod (35) is welded to one side of the positioning block (34) close to the outer wall of the positioning seat (32), and the outer wall of the sliding rod (35) is slidably connected to the inner wall of the positioning seat (32).

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