Simple air sampler

Abstract

The utility model discloses a simple air sampler which comprises an air sampler body, and the air sampler body comprises a sampler shell, two supports fixedly connected to the outer side of the sampler shell and a detection device fixedly installed on the inner wall of the left side of the sampler shell. An air inlet cylinder with an opening in the bottom is fixedly embedded in the inner wall of the top of the sampler shell, and a first one-way valve with an outlet in the bottom is fixedly communicated with the top of the air inlet cylinder. According to the utility model, a series of structures are arranged, so that the shielding of the upper part can be automatically removed through single driving during sampling, the air sampling work is integrally carried out, the filter screen at the upper part can be automatically closed after sampling, the phenomenon that impurities and pollutants enter from the upper part to influence the next use when the sampling device is not used is prevented, and the safety is improved; in addition, a filter screen is arranged, solid residues in extracted gas can be filtered and intercepted, the phenomenon that a large amount of solid residues enter the interior to cause blockage is prevented, and the using effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air sampling equipment, in particular to a simple air sampler. Background Art

[0002] Environmental testing is particularly important, and air samplers are needed during environmental testing.

[0003] In this regard, according to the search report of the novelty search agency, announcement number CN208547521U discloses an air sampler for exhaust gas detection, whose structure includes an air sampler, a control device and a detection device; the air sampler is provided with a bracket, a sampling port, an air pressure pump, an air bag, and an air pressure telescopic rod, the air pressure pump is provided with a hose and a support plate, and the air pressure telescopic rod is provided with a top plate; the control device includes a display screen, control buttons and a circuit board; the circuit board is provided with a data processing module, a data transmission module and a data receiving module; the air sampler for exhaust gas detection, the additional air bag, cooperates with the air pressure telescopic rod to compress the air bag, can realize exhaust gas inhalation, and improves the efficiency of the air sampler; the additional control device can realize the wireless remote transmission of the collected and detected air data to the mobile phone terminal using the data transmission module and the data receiving module, which reflects the intelligence of the air sampler.

[0004] The air sampler for exhaust gas detection disclosed in the above technology has a simple structure. The air bag is squeezed and stretched by a pneumatic telescopic rod, so that it can suck in external air through the sampling port and pass the air into the detection device through a sample storage hose for detection. However, there are still the following deficiencies when in use: 1. The sampling port is directly exposed at the top, and impurities and pollutants are inevitably introduced when not in use, affecting the next monitoring work. It cannot automatically seal after sampling, and the safety is not ideal; 2. There is a lack of structure for intercepting solid slag during air intake sampling; in view of this, on this basis, improvements are made, and the present application proposes a simple air sampler to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a simple air sampler to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a simple air sampler, comprising an air sampler body, the air sampler body comprising a sampler housing, two brackets fixedly connected to the outside of the sampler housing, and a detection device fixedly installed on the left inner wall of the sampler housing, an air inlet cylinder with an opening at the bottom is embedded and fixed on the top inner wall of the sampler housing, the top of the air inlet cylinder is connected to and fixed with a first one-way valve with an outlet at the bottom, the top of the sampler housing is fixedly connected to a filter screen located above the first one-way valve, a sealing sliding sleeve in the air inlet cylinder is provided with a piston, a second one-way valve is embedded and fixed on the left side of the top of the piston, the bottom of the second one-way valve is an outlet and a hose is fixed between the second one-way valve and the sampling port of the detection device;

[0007] A lifting drive mechanism is fixedly installed on the bottom inner wall of the sampler housing, and the top of the lifting drive mechanism extends to the top of the sampler housing and is fixedly connected to a protective cover, the filter screen is located in the protective cover, and a linked vertical guide lifting mechanism is installed between the left side of the lifting drive mechanism and the bottom inner wall of the sampler housing, and the top of the linked vertical guide lifting mechanism is fixedly connected to the bottom of the piston; the lifting drive mechanism is used to drive the protective cover to move up and down to unseal and seal the filter screen, and the linked vertical guide lifting mechanism is used to drive the piston to move up and down by using the lifting force of the lifting drive mechanism, and when the piston moves down, external air is drawn into the air intake cylinder through the first one-way valve and the filter screen, and when the piston moves up, the drawn gas is squeezed, and under the squeezing force, the gas enters the detection device through the second one-way valve and the hose in turn for detection work, wherein the detection of air quality by the detection device is an existing technology and will not be elaborated on.

[0008] Preferably, the lifting drive mechanism includes an electric telescopic rod fixedly mounted on the bottom inner wall of the sampler housing, the protruding end of the electric telescopic rod is fixedly connected to the lifting rod, the top end of the lifting rod slides out to the top of the sampler housing and is fixedly connected to the top inner wall of the protective cover, the front side of the electric telescopic rod is fixed and electrically connected to a wireless remote control switch, and the wireless remote control switch is matched with an external remote control.

[0009] Preferably, the linked drive vertical guide lifting mechanism includes a rectangular guide rod fixedly connected to the bottom inner wall of the sampler housing, a rectangular tube is provided on the sliding sleeve of the rectangular guide rod, the top of the rectangular tube is fixedly connected to the bottom right side of the piston, and racks are fixedly installed on the right bottom of the rectangular tube and the left bottom of the lifting rod, and the same gear is engaged between the two racks, and the gear is rotatably installed on the rear inner wall of the sampler housing.

[0010] Preferably, the outer bonding sleeve of the piston is provided with a sealing ring, and the outer side of the sealing ring is in close sliding contact with the inner wall of the air intake cylinder.

[0011] Preferably, an embedding hole is opened on the left side of the top of the piston, and the inner wall of the embedding hole is fixedly connected to the outer side of the second one-way valve.

[0012] Preferably, a vent hole is provided on the top inner wall of the sampler housing, and the inner wall of the vent hole is fixedly connected to the outer side of the air inlet cylinder.

[0013] Preferably, the detection device is an air quality detector of model XY-8F.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the cooperation of the sampler housing, air inlet cylinder, piston, first one-way valve, second one-way valve, protective cover, lifting drive mechanism and linked vertical guide lifting mechanism, the upper part can be unblocked and blocked respectively, and air can be extracted and sampled synchronously when unblocking by a single start of the electric telescopic rod, so as to achieve the effect of automatically removing the upper blockage and sampling the air in one piece by a single drive during sampling, and the upper filter can be automatically sealed after sampling to prevent impurities and pollutants from entering from the top when not in use and affecting the next use, thereby improving safety;

[0016] 2. Through the filter net, the solid residue can be filtered out of the extracted gas, thereby intercepting the solid residue and preventing a large amount of solid residue from entering the interior and causing blockage, thereby further improving the use effect.

[0017] The utility model is provided with a series of structures, which makes it easy to automatically remove the upper obstruction and perform air sampling in an integrated manner with a single drive during sampling, and can automatically seal the upper filter after sampling to prevent impurities and pollutants from entering from the top when not in use and affecting the next use, thereby improving safety. In addition, by providing a filter, solid residues in the extracted gas can be filtered and intercepted to prevent a large amount of solid residues from entering the interior and causing blockage, thereby further improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a simple air sampler proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of a simple air sampler proposed in the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A in FIG.

[0021] In the figure: 1. Sampler housing; 101. Detection device; 2. Electric telescopic rod; 201. Lifting rod; 202. Rack; 203. Gear; 204. Rectangular guide rod; 205. Rectangular tube; 3. Protective cover; 4. Air inlet cylinder; 401. Piston; 402. First one-way valve; 403. Second one-way valve; 5. Hose; 6. Filter. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 3 As shown, a simple air sampler proposed in this embodiment includes an air sampler body, which includes a sampler housing 1, two brackets fixedly connected to the outside of the sampler housing 1 and a detection device 101 fixedly installed on the left inner wall of the sampler housing 1. An air inlet cylinder 4 with an opening at the bottom is embedded and fixed on the top inner wall of the sampler housing 1, wherein a vent is provided on the top inner wall of the sampler housing 1, and the inner wall of the vent is fixedly connected to the outside of the air inlet cylinder 4, and the top of the air inlet cylinder 4 is connected to a first one-way valve 402 with an outlet at the bottom. The top of the sampler housing 1 is fixedly connected to a filter screen 6 located above the first one-way valve 402, and a sealing sliding sleeve is provided in the air inlet cylinder 4. 1, wherein the outer adhesive sleeve of the piston 401 is provided with a sealing ring, and the outer side of the sealing ring is in close sliding contact with the inner wall of the air inlet cylinder 4, which plays a role in sliding sealing between the outer side of the piston 401 and the inner side of the air inlet cylinder 4, and a second one-way valve 403 is embedded and fixed on the left side of the top of the piston 401, wherein an embedding hole is opened on the left side of the top of the piston 401, and the inner wall of the embedding hole is fixedly connected to the outer side of the second one-way valve 403, and the bottom of the second one-way valve 403 is an outlet and is connected to the sampling port of the detection device 101 by a hose 5; wherein the detection device 101 is an air quality detector with a model of XY-8F, and the detection of air quality when injecting air using the detection device 101 is a prior art and will not be elaborated on;

[0024] A lifting drive mechanism is fixedly installed on the bottom inner wall of the sampler housing 1, and the top of the lifting drive mechanism extends to the top of the sampler housing 1 and is fixedly connected to the protective cover 3. The filter screen 6 is located in the protective cover 3, and a linked vertical guide lifting mechanism is installed between the left side of the lifting drive mechanism and the bottom inner wall of the sampler housing 1. The top of the linked vertical guide lifting mechanism is fixedly connected to the bottom of the piston 401; the lifting drive mechanism is used to drive the protective cover 3 to move up and down to unseal and seal the filter screen 6, and the linked vertical guide lifting mechanism is used to use the lifting force of the lifting drive mechanism to drive the piston 401 to move up and down. When the piston 401 moves downward, external air is drawn into the air inlet cylinder 4 through the first one-way valve 402 and the filter screen 6, and when the piston 401 moves upward, the drawn gas is squeezed. Under the squeezing force, the gas enters the detection device 101 through the second one-way valve 403 and the hose 5 in turn for detection.

[0025] Specifically, the lifting drive mechanism includes an electric telescopic rod 2 fixedly mounted on the bottom inner wall of the sampler housing 1, the protruding end of the electric telescopic rod 2 is fixedly connected to the lifting rod 201, the top end of the lifting rod 201 slides out to the top of the sampler housing 1 and is fixedly connected to the top inner wall of the protective cover 3, the front side of the electric telescopic rod 2 is fixed and electrically connected to a wireless remote control switch, and the wireless remote control switch is matched with an external remote control, wherein a vertical guide hole is provided on the top inner wall of the sampler housing 1, which serves to allow the lifting rod 201 to pass through and guide its vertical sliding; the set electric telescopic rod 2 and the lifting rod 201 cooperate, and the electric telescopic rod 2 is used to drive the lifting rod 201 to rise and fall, and the lifting rod 201 is used to drive the protective cover 3 to rise and fall to unseal and close the filter 6.

[0026] Furthermore, the linked drive vertical guide lifting mechanism includes a rectangular guide rod 204 fixedly connected to the bottom inner wall of the sampler housing 1, a rectangular tube 205 is slidably sleeved on the rectangular guide rod 204, the top of the rectangular tube 205 is fixedly connected to the bottom right side of the piston 401, the right bottom of the rectangular tube 205 and the left bottom of the lifting rod 201 are fixedly installed with a rack 202, the two racks 202 are meshed with the same gear 203, the gear 203 is rotatably mounted on the rear inner wall of the sampler housing 1, wherein the rear inner wall of the sampler housing 1 is fixedly connected with a support shaft, the gear A circular hole is provided on the front side of 203, and a bearing is fixedly sleeved in the circular hole. The inner ring of the bearing is fixedly sleeved on the outer side of the support shaft. The support shaft and the bearing cooperate to achieve the effect of rotating the gear 203; the rectangular guide rod 204, the rectangular tube 205, the two racks 202 and the gear 203 cooperate to drive the rack 202 on the right to rise and fall when the lifting rod 201 is raised and lowered, and the rack 202 on the right drives the rack 202 on the left to move up and down through the gear 203 meshing with it, and the rack 202 on the left drives the piston 401 to move up and down through the rectangular tube 205.

[0027] The method of using this embodiment is as follows: when in use, the electric telescopic rod 2 is started in the forward direction to drive the lifting rod 201 to move upward, and the lifting rod 201 drives the protective cover 3 to move upward, thereby releasing the shielding of the filter screen 6 and the air vent. At the same time, when the lifting rod 201 moves upward, it also drives the right rack 202 to move upward, and the right rack 202 drives the gear 203 to rotate counterclockwise, and the gear 203 drives the left rack 202 to move downward, and the left rack 202 drives the rectangular tube 205 to slide downward on the rectangular guide rod 204, and the rectangular tube 205 drives the piston 401 to slide downward in the air intake cylinder 4. When the piston 401 moves downward, the external air is sucked into the air intake cylinder 4 through the first one-way valve 402 and the filter screen 6. Then the electric telescopic rod 2 is started in the reverse direction to drive the lifting rod 201 to move back downward. At the same time, the movement direction of the electric telescopic rod 2 is completely opposite to that of the above-mentioned forward start. The cover 3 turns to move back downward and covers the vent hole and the filter 6 again for protection, and at this time the piston 401 turns to move back upward. The upward moving piston 401 squeezes the drawn-in gas, and under the squeezing force, the gas enters the detection device 101 through the second one-way valve 403 and the hose 5 in turn for detection. By starting the electric telescopic rod 2 alone, the upper part can be unblocked and covered respectively, and the air can be extracted and sampled synchronously. This facilitates the automatic removal of the upper cover and the integrated air sampling by a single drive during sampling, and the automatic sealing of the upper filter 6 after sampling to prevent impurities and pollutants from entering from the top when not in use and affecting the next use, thereby improving safety. In addition, the filter 6 can filter solid residues from the drawn-in gas, intercept the solid residue, and prevent a large amount of solid residue from entering the interior to cause blockage, thereby further improving the use effect.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A simple air sampler, comprising an air sampler body, wherein the air sampler body comprises a sampler housing (1), two brackets fixedly connected to the outside of the sampler housing (1), and a detection device (101) fixedly mounted on the left inner wall of the sampler housing (1), characterized in that: An air inlet cylinder (4) with an opening at the bottom is embedded and fixed on the inner wall of the top of the sampler housing (1); a first one-way valve (402) with an outlet at the bottom is connected and fixed to the top of the air inlet cylinder (4); a filter screen (6) located above the first one-way valve (402) is fixedly connected to the top of the sampler housing (1); a piston (401) is provided in the sealing sliding sleeve inside the air inlet cylinder (4); a second one-way valve (403) is embedded and fixed on the left side of the top of the piston (401); a hose (5) is fixedly connected to the bottom of the second one-way valve (403) with an outlet and connected to the sample inlet of the detection device (101); A lifting drive mechanism is fixedly installed on the bottom inner wall of the sampler housing (1), the top of the lifting drive mechanism extends to the top of the sampler housing (1) and is fixedly connected to the protective cover (3), the filter screen (6) is located in the protective cover (3), and a linked vertical guide lifting mechanism is installed between the left side of the lifting drive mechanism and the bottom inner wall of the sampler housing (1), and the top of the linked vertical guide lifting mechanism is fixedly connected to the bottom of the piston (401).

2. A simple air sampler according to claim 1, characterized in that: The lifting drive mechanism includes an electric telescopic rod (2) fixedly mounted on the bottom inner wall of the sampler housing (1), the protruding end of the electric telescopic rod (2) is fixedly connected to a lifting rod (201), the top end of the lifting rod (201) slides out to the top of the sampler housing (1) and is fixedly connected to the top inner wall of the protective cover (3), the front side of the electric telescopic rod (2) is fixed and electrically connected to a wireless remote control switch, and the wireless remote control switch is matched with an external remote control.

3. A simple air sampler according to claim 2, characterized in that: The linked drive vertical guide lifting mechanism comprises a rectangular guide rod (204) fixedly connected to the inner wall of the bottom of the sampler housing (1); a rectangular tube (205) is slidably sleeved on the rectangular guide rod (204); the top end of the rectangular tube (205) is fixedly connected to the right side of the bottom of the piston (401); a rack (202) is fixedly installed on the right bottom of the rectangular tube (205) and the left bottom of the lifting rod (201); a same gear (203) is meshed between the two racks (202); and the gear (203) is rotatably installed on the rear inner wall of the sampler housing (1).

4. A simple air sampler according to claim 1, characterized in that: The outer bonding sleeve of the piston (401) is provided with a sealing ring, and the outer side of the sealing ring is in close sliding contact with the inner wall of the air intake cylinder (4).

5. A simple air sampler according to claim 1, characterized in that: An embedding hole is provided on the left side of the top of the piston (401), and the inner wall of the embedding hole is fixedly connected to the outer side of the second one-way valve (403).

6. A simple air sampler according to claim 1, characterized in that: A vent hole is provided on the top inner wall of the sampler housing (1), and the inner wall of the vent hole is fixedly connected to the outer side of the air inlet cylinder (4).

7. A simple air sampler according to claim 1, characterized in that: The detection device (101) is an air quality detector of model XY-8F.

Images