Adjustable atmosphere sampler

Abstract

The utility model discloses an adjustable atmosphere sampler which comprises a bracket, a sampler body, an air inlet pipe, two connecting seats, a filter box, a weighing sensor, a weighing plate, two sliding chutes and a first filter screen, and relates to the technical field of atmosphere samplers. Through the arrangement of the second filter screen, dust and large-particle impurities in air can be filtered in advance, foreign matters such as dust in the air are prevented from being sucked into a pump of the air sampler, the working performance and the service life of the air sampler are ensured, the guide pipe is prevented from being blocked, and the service life of the air sampler is prolonged. Small-particle impurities in air can be filtered through the first filter screen in the filter box, and the weighing sensor is arranged below the first filter screen, so that the first filter screen is weighed in real time, the weight change of the first filter screen can be known in time through real-time weighing, the use condition of the filter screen is judged, and observation and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere samplers, in particular to an adjustable atmosphere sampler. Background Art

[0002] An atmospheric sampler is an instrument or device for collecting atmospheric pollutants or polluted atmosphere. There are many types of atmospheric samplers. According to the collection object, they can be divided into two types: gas (including steam) samplers and particulate samplers; according to the place of use, they can be divided into environmental samplers, indoor samplers (such as samplers used in factory workshops) and pollution source samplers (such as chimney samplers). In addition, there are special-purpose atmospheric samplers, such as samplers that collect gas and particulate matter at the same time, which can collect sulfur dioxide and particulate matter in the atmosphere, or hydrogen fluoride and particulate matter, etc., to facilitate the study of the relationship between sulfur or fluorine in gaseous and solid substances. There are also samplers for collecting bacteria in the air.

[0003] The existing atmospheric sampler has a simple structure and does not have good protection for the air inlet. During the sampling process, foreign matter such as dust in the atmosphere is easily sucked into the pump, which reduces the working performance and service life of the atmospheric sampler and is also prone to cause blockage of the catheter. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable atmospheric sampler to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable atmospheric sampler, comprising a bracket, a sampler body, an air inlet pipe, two connecting seats, a filter box, a weighing sensor, a weighing plate, two slide grooves and a first filter screen, the sampler body is arranged at the top of the bracket, one end of the air inlet pipe is connected to the air inlet of the sampler, one end of the two connecting seats is arranged on the left side outside the sampler body, the filter box is arranged at the other end of the two connecting seats, and the right side of the filter box is connected to the other end of the air inlet pipe, an air inlet is provided on the left side of the filter box, a groove is provided on the inner wall of the filter box, the weighing sensor is arranged at the bottom of the filter box, the weighing plate is slidably connected to the groove, and the bottom of the load-bearing plate is connected to the sensing end of the weighing sensor, the two slide grooves are respectively arranged at the top of the load-bearing plate and the top of the filter box, and the two slide grooves are symmetrically arranged up and down, and the first filter screen is slidably connected to the two slide grooves.

[0006] Preferably, one end of an air inlet pipe is provided at the air inlet on the left side of the filter box, the outer wall of the air inlet pipe is provided with an external thread, the outer wall of the air inlet pipe is threadedly connected with a threaded sleeve, and a second filter is provided on the left side of the threaded sleeve.

[0007] Preferably, an alarm is provided on the left side outside the sampler body, and the alarm is connected to the weighing sensor.

[0008] Preferably, the slide groove is a "concave" structure.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model can pre-filter dust and large particles of impurities in the air through the provision of the second filter, prevent dust and other foreign matter in the air from being sucked into the pump of the sampler, ensure the working performance and service life of the atmospheric sampler, and avoid blockage of the catheter; small particles of impurities in the air can be filtered through the first filter in the filter box, and a weighing sensor is provided under the first filter to weigh the first filter in real time. The real-time weighing can timely understand the weight change of the first filter, thereby judging the usage of the filter, which is convenient for observation and replacement; at the same time, the first filter and the second filter are both detachable in design, which is convenient for later cleaning and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the main structure of the filter box, connecting seat, air inlet pipe, air intake pipe, threaded sleeve and second filter screen of the utility model.

[0012] In the figure: 1. bracket; 2. sampler body; 3. air inlet pipe; 4. connecting seat; 5. filter box; 6. weighing sensor; 7. weighing plate; 8. slide; 9. first filter; 10. air inlet pipe; 11. threaded sleeve; 12. second filter; 13. alarm. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-2The utility model provides an adjustable atmospheric sampler, comprising a bracket 1, a sampler body 2, an air intake pipe 3, two connecting seats 4, a filter box 5, a weighing sensor 6, a weighing plate 7, two slide slots 8 and a first filter screen 9. The sampler body 2 is arranged on the top of the bracket 1, one end of the air intake pipe 3 is connected to the air inlet of the sampler, and the air intake pipe 3 is used for the entry of outside air. One end of the two connecting seats 4 is arranged on the left side outside the sampler body 2, and the filter box 5 is arranged on the other end of the two connecting seats 4. The connecting seat 4 is used for connecting the filter box 5 with the sampler body 2, and the right end of the filter box 5 is connected to the sampler body 2. The filter box 5 is connected to the other end of the air inlet pipe 3 on the left side, and the filter box 5 is communicated with the sampler body 2 through the air inlet pipe 3. An air inlet is opened on the left side of the filter box 5, and a groove is opened on the inner wall of the filter box 5. The weighing sensor 6 is arranged at the bottom of the filter box 5. The weighing plate 7 is slidably connected to the groove, and the bottom of the load-bearing plate is connected to the sensing end of the weighing sensor 6. Two slide grooves 8 are respectively arranged at the top of the load-bearing plate and the top of the filter box 5, and the two slide grooves 8 are symmetrically arranged up and down. The first filter screen 9 is slidably connected to the two slide grooves 8, and the weighing sensor 6 is used to weigh the first filter screen 9 in real time.

[0015] Specifically, one end of an air inlet pipe 10 is provided at the air inlet on the left side of the filter box 5, the outer wall of the air inlet pipe 10 is provided with an external thread, the outer wall of the air inlet pipe 10 is threadedly connected with a threaded sleeve 11, and a second filter screen 12 is provided on the left side of the threaded sleeve 11, and the second filter screen 12 is connected to the air inlet pipe 10 through the threaded sleeve 11.

[0016] Specifically, an alarm 13 is provided on the left side outside the sampler body 2, and the alarm 13 is connected to the weighing sensor 6. The weighing sensor 6 weighs the first filter 9 in real time. When the set value is exceeded, the alarm 13 will sound an alarm.

[0017] Specifically, the slide groove 8 is a "concave" structure.

[0018] Working principle: The second filter 12 can pre-filter the dust and large particles in the air, and the small particles in the air can be filtered through the first filter 9 in the filter box 5. The filtered air will enter the sampler body 2 for detection, and the weighing sensor 6 will weigh the first filter 9 in real time. When the particulate matter on the first filter 9 reaches a certain weight, the first filter 9 will apply a certain pressure to the weighing sensor 6, and the weighing sensor 6 will transmit the model to the alarm 13. When the weight exceeds the set value, the alarm 13 will sound an alarm, indicating that the staff should replace the second filter 12 as soon as possible. The first filter 9 is connected to the air inlet pipe 10 through the threaded sleeve 11, and the second filter 12 is connected to the filter box 5 through the slide groove 8.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable atmospheric sampler, characterized in that: The sampler comprises a bracket (1), a sampler body (2), an air inlet pipe (3), two connecting seats (4), a filter box (5), a weighing sensor (6), a weighing plate (7), two slide grooves (8) and a first filter screen (9), wherein the sampler body (2) is arranged on the top of the bracket (1), one end of the air inlet pipe (3) is connected to the air inlet of the sampler, one end of the two connecting seats (4) is arranged on the left side outside the sampler body (2), the filter box (5) is arranged on the other end of the two connecting seats (4), and the right side of the filter box (5) is connected to the air inlet. The other end of the tube (3) is connected, the left side of the filter box (5) is provided with an air inlet, the inner wall of the filter box (5) is provided with a groove, the weighing sensor (6) is arranged at the bottom of the filter box (5), the weighing plate (7) is slidably connected to the groove, and the bottom of the bearing plate is connected to the sensing end of the weighing sensor (6), the two slide grooves (8) are respectively arranged at the top of the bearing plate and the top of the filter box (5), and the two slide grooves (8) are symmetrically arranged up and down, and the first filter screen (9) is slidably connected to the two slide grooves (8).

2. An adjustable atmospheric sampler according to claim 1, characterized in that: One end of an air inlet pipe (10) is arranged at the air inlet on the left side of the filter box (5), the outer wall of the air inlet pipe (10) is provided with an external thread, the outer wall of the air inlet pipe (10) is threadedly connected to a threaded sleeve (11), and a second filter screen (12) is arranged on the left side of the threaded sleeve (11).

3. An adjustable atmospheric sampler according to claim 1, characterized in that: An alarm (13) is arranged on the left side outside the sampler body (2), and the alarm (13) is connected to the weighing sensor (6).

4. An adjustable atmospheric sampler according to claim 1, characterized in that: The slide groove (8) is a "concave" structure.

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