An air environment sampling device

Abstract

The utility model discloses an air environment sampling device relates to air sample collection device technical field, including sampling bucket subassembly, suction subassembly, the sampling bucket subassembly includes outer bucket, inner tube, I -shaped spacer, the inner tube is fixed in the outer bucket inner wall top and is flush with the outer bucket top, I -shaped spacer is provided with a plurality of, a plurality of I -shaped spacer evenly distributed fixed in the inner tube inside, the first through slot is set up in the position of the alignment of the two disc middle area of the inner tube outside and I -shaped spacer, the second through slot is set up in the disc below I -shaped spacer, the suction subassembly cooperation multiple gas storage bin is used for realizing the synchronous collection of multiple environmental height air sample, the utility model discloses a plurality of gas storage bin's sampling bucket subassembly and the suction subassembly with a plurality of pistons can realize the synchronous collection of different environmental height air sample, and effectively improve sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of air sample collection devices, specifically an air environment sampling device. Background Technology

[0002] Air sampling is a fundamental task in fields such as environmental monitoring and scientific research. Its core objective is to obtain representative samples from the air and ambient altitude in a specific environment without altering the original physicochemical properties of the air samples.

[0003] During air sampling, to ensure the accuracy of subsequent air research data, it is necessary to collect air samples at multiple different environmental altitudes. However, existing automatic extraction sampling devices can only sample air at one environmental altitude at a time, which requires repeating the sampling operation multiple times at the same location. To simplify this operation, an air environment sampling device is provided. Utility Model Content

[0004] The purpose of this invention is to provide an air environment sampling device in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air environment sampling device, comprising a sampling barrel assembly, wherein the sampling barrel assembly comprises an outer barrel, an inner barrel, and an I-shaped separator; The inner cylinder is fixed to the top of the inner wall of the outer cylinder and is flush with the top of the outer cylinder. Multiple I-shaped isolation members are provided. The multiple I-shaped isolation members are evenly distributed vertically and fixed to the inner side of the inner cylinder. A first through groove is provided at the position on the outer side of the inner cylinder that is aligned with the middle area of ​​the two discs of the I-shaped isolation member. A second through groove is provided on the disc below the I-shaped isolation member. Multiple inner cylinders together form multiple air storage chambers. The top of the outer cylinder is provided with a suction component that extends to the multiple air storage chambers. The suction component works in conjunction with the multiple air storage chambers to achieve simultaneous collection of air samples at multiple environmental heights.

[0006] As a further embodiment of this utility model: the suction assembly includes a cross-shaped fixing frame, a piston rod, a piston, and a lifting ring; A clamping ring is fixed to the top of the outer side of the outer barrel, and the cross-shaped fixing brackets are distributed on the top of the outer barrel and welded to the clamping ring; The piston rod passes sequentially from the top of the cross-shaped fixing frame, through the cross-shaped fixing frame, multiple I-shaped isolation components, and the gas storage chamber to the bottom gas storage chamber. The pistons are distributed inside the multiple gas storage chambers and are fixedly connected to the piston rod. An air inlet pipe is fixed to the outside of the outer barrel, extending through the outer barrel and the inner barrel and communicating with the bottom of the inner cavity of the gas storage chamber. The upward movement of the gas storage chamber generates negative pressure and draws air into the gas storage chamber through the air inlet pipe to achieve air sample collection. The lifting ring is rotatably mounted on the top of the piston rod and is used to provide a binding position for the lifting rope.

[0007] As a further embodiment of this utility model: the number of pistons is one more than the number of first through slots, and the uppermost piston is distributed above the uppermost first through slot; The outer diameter of the piston matches the inner diameter of the inner cylinder.

[0008] As a further embodiment of this utility model: the suction assembly also includes an I-shaped retaining ring, a guide shaft, an elastic band, a fixing base, a Z-shaped lock, and a connecting rope; The guide shafts are respectively fixed to the inner sides of the four concave arms of the cross bracket, and multiple guide shafts are provided inside a single concave arm. A fixing post is fixed on the outer side of the outer barrel near the bottom. Four elastic bands are provided, which are arranged in a ring. One end of the elastic band is fixedly connected to the top of the uppermost piston. The other end of the elastic band passes through the space between the inner side of the concave arm of the cross fixing frame and the top of the guide shaft, and extends downward to connect and fix with the fixing post. The elastic band is used to provide a restoring elastic force for the piston rod and piston after they have moved down. The I-shaped retaining ring is fixed to the outside of the piston rod and distributed above the cross-shaped fixing frame. The fixing seat is fixed to the top of a concave arm of the cross-shaped fixing frame. The Z-shaped buckle is distributed on the inside of the fixing seat and the top corner of the Z-shaped buckle is rotatably connected to the fixing seat through a rotating shaft. The top horizontal portion of the Z-shaped latch extends close to the piston rod and coincides with the moving area of ​​the I-shaped retaining ring. The bottom horizontal portion of the Z-shaped latch fits against the upper surface of the concave arm of the cross-shaped fixing bracket. The top horizontal portion of the Z-shaped latch engages with the inner side of the downward-moving I-shaped retaining ring to lock the piston rod and piston in the downward-moving state. The connecting rope is connected to one end of the horizontal part at the bottom of the Z-shaped lock. When the connecting rope is pulled, the fixed seat flips to release the lock on the I-shaped retaining ring.

[0009] As a further embodiment of this utility model: the upper surface of the top horizontal part of the Z-shaped latch is arc-shaped, and the lower surface of the top horizontal part of the Z-shaped latch is right-angled; When the I-shaped retaining ring and the Z-shaped locking buckle are engaged, there is a gap between the bottom of the piston and the bottom of the inner wall of the gas storage chamber.

[0010] As a further improvement of this utility model: multiple air inlet pipes are arranged in a ring and the number of air storage chambers is the same, and the height of the multiple air inlet pipes corresponds one-to-one with the height of the multiple air storage chambers. A sampling hose is sleeved on the outside of the air inlet pipe, and a C-shaped clamp is fixed on the outside of the clamp ring for securing the sampling hose.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By setting up a sampling barrel assembly with multiple gas storage chambers and a suction assembly with multiple pistons, simultaneous collection of air samples at different environmental altitudes can be achieved, effectively improving sampling efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the sampling bucket assembly of this utility model; Figure 3 This is a cross-sectional view of the sampling bucket assembly of this utility model; Figure 4 This is a quarter-section view of the sampling bucket assembly of this utility model.

[0013] In the diagram: 1. Sampling bucket assembly; 101. Outer bucket; 102. Inner cylinder; 103. First through groove; 104. I-shaped isolation piece; 105. Second through groove; 106. Gas storage chamber; 107. Air inlet pipe; 108. Sampling hose; 109. Clamping ring; 110. C-clamp; 111. Fixing column; 2. Suction assembly; 201. Cross-shaped fixing frame; 202. Piston rod; 203. Piston; 204. I-shaped retaining ring; 205. Lifting ring; 206. Guide shaft; 207. Elastic band; 208. Fixing base; 209. Z-shaped lock; 210. Connecting rope. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 In this embodiment of the present invention, an air environment sampling device includes a sampling barrel assembly 1, which includes an outer barrel 101, an inner barrel 102, and an I-shaped isolation member 104. The inner cylinder 102 is fixed to the top of the inner wall of the outer cylinder 101 and is flush with the top of the outer cylinder 101. Multiple I-shaped isolation members 104 are provided. The multiple I-shaped isolation members 104 are evenly distributed vertically and fixed to the inner side of the inner cylinder 102. A first through groove 103 is provided at the position on the outer side of the inner cylinder 102 that is aligned with the middle area of ​​the two discs of the I-shaped isolation member 104. A second through groove 105 is provided on the disc below the I-shaped isolation member 104. Multiple inner cylinders 102 together form multiple air storage chambers 106. The top of the outer cylinder 101 is provided with a suction component 2 that extends to the multiple air storage chambers 106. The suction component 2, together with the multiple air storage chambers 106, is used to realize the synchronous collection of air samples at multiple environmental heights. The suction assembly 2 includes a cross-shaped fixing frame 201, a piston rod 202, a piston 203, and a lifting ring 205; A clamping ring 109 is fixed to the top of the outer side of the outer tub 101, and a cross-shaped fixing bracket 201 is distributed on the top of the outer tub 101 and welded to the clamping ring 109; The piston rod 202 passes through the cross-shaped fixing frame 201, multiple I-shaped isolation pieces 104, and gas storage chamber 106 from above to the bottom gas storage chamber 106. The piston 203 is distributed inside multiple gas storage chambers 106 and is fixedly connected to the piston rod 202. An air inlet pipe 107 is fixed on the outside of the outer barrel 101, extending through the outer barrel 101 and the inner barrel 102 and communicating with the bottom of the inner cavity of the air storage chamber 106. The upward movement of the air storage chamber 106 generates negative pressure and draws air into the interior of the air storage chamber 106 through the air inlet pipe 107 to achieve air sample collection. The lifting ring 205 is rotatably mounted on the top of the piston rod 202 to provide a binding position for the lifting rope; The number of pistons 203 is one more than the number of first through slots 103, and the uppermost piston 203 is located above the uppermost first through slot 103; The outer diameter of piston 203 matches the inner diameter of inner cylinder 102; Multiple air intake pipes 107 are arranged in a ring and the number of them is the same as that of the gas storage chambers 106. The height of the multiple air intake pipes 107 corresponds one-to-one with the height of the multiple gas storage chambers 106. A sampling hose 108 is sleeved on the outside of the air inlet pipe 107, and a C-clamp 110 is fixed on the outside of the clamp ring 109 for the sampling hose 108 to be snapped and fixed.

[0016] In this embodiment, the operating principle of this multi-layer air sample collection device is as follows: First, press the piston rod 202 downwards so that the multiple pistons 203 approach the bottom of the corresponding gas storage chamber 106, thereby expelling the air inside the gas storage chamber 106. Then, the entire device is lowered into the air by a sling. When the device reaches the designated ambient height, piston rod 202 and piston 203 are released and move upward. When piston 203 moves upward, a negative pressure is generated inside the gas storage chamber 106. This negative pressure draws outside air into the gas storage chamber 106 through the air inlet pipe 107 and the sampling hose 108, thus achieving air sample collection. It should be further explained that the sampling hose 108 is made of a material with a certain degree of hardness, so that the part of the sampling hose 108 protruding from the top of the outer barrel 101 can remain in a stable vertical position, thereby fixing the height of the sampling hose 108 port. In this way, by having different heights at the top ports of the sampling hose 108 (e.g., the sampling hose 108 port height corresponding to the bottom air storage chamber 106 is the lowest, and the sampling hose 108 port height corresponding to the top air storage chamber 106 is the highest), it is possible to collect air samples at different environmental heights simultaneously.

[0017] It should also be noted that this method involves using ropes to lower the device to different heights at high altitudes (e.g., standing on a tall building) for sampling.

[0018] Please refer to this carefully. Figures 1-3 The suction assembly 2 also includes an I-shaped retaining ring 204, a guide shaft 206, an elastic band 207, a fixing base 208, a Z-shaped lock 209, and a connecting rope 210; The guide shafts 206 are respectively fixed to the inner sides of the four concave arms of the cross bracket 201, and multiple guide shafts 206 are provided inside a single concave arm; A fixing post 111 is fixed on the outer side of the outer barrel 101 near the bottom. Four elastic rubber bands 207 are provided. The four elastic rubber bands 207 are arranged in a ring. One end of the elastic rubber band 207 is fixedly connected to the top of the uppermost piston 203. The other end of the elastic rubber band 207 passes through the space between the inner side of the concave arm of the cross fixing bracket 201 and the top of the guide shaft 206, and extends downward to connect and fix to the fixing post 111. The elastic rubber band 207 is used to provide a restoring elastic force for the piston rod 202 and piston 203 after they are moved down. The I-shaped retaining ring 204 is fixed to the outside of the piston rod 202 and distributed above the cross-shaped fixing frame 201. The fixing seat 208 is fixed to the top of a concave arm of the cross-shaped fixing frame 201. The Z-shaped latch 209 is distributed on the inside of the fixing seat 208 and the top corner of the Z-shaped latch 209 is rotatably connected to the fixing seat 208 through a rotating shaft. The top horizontal portion of the Z-type latch 209 extends close to the piston rod 202 and coincides with the moving area of ​​the I-shaped retaining ring 204. The bottom horizontal portion of the Z-type latch 209 fits against the upper surface of the concave arm of the cross-shaped fixing bracket 201. The top horizontal portion of the Z-type latch 209 is engaged with the inner side of the downward-moving I-shaped retaining ring 204 to lock the piston rod 202 and piston 203 in the downward-moving state. The connecting rope 210 is connected to one end of the bottom horizontal part of the Z-type lock 209. When the connecting rope 210 is pulled, the fixing seat 208 flips to release the locking of the I-shaped retaining ring 204.

[0019] In this embodiment: during the downward movement of the piston rod 202, the I-shaped retaining ring 204 contacts the Z-shaped lock 209 and compresses the Z-shaped lock 209 to flip. When the groove of the I-shaped retaining ring 204 contacts the Z-shaped lock 209, the Z-shaped lock 209 automatically resets under the gravity of the bottom horizontal part, so that the top horizontal part of the Z-shaped lock 209 is engaged in the groove of the I-shaped retaining ring 204. In this way, the piston rod 202 can be locked in the downward movement state. At the same time, during the downward movement of the piston 203, the elastic band 207 can be pulled to extend, and the elastic band 207 generates an upward pulling force on the piston 203. When the entire device is suspended at a high altitude, the connecting rope 210 has sufficient length. When the device is lowered to the designated environmental height, the connecting rope 210 is straightened. At this time, the tension of the connecting rope 210 generates an upward pulling force on the bottom horizontal part of the Z-type lock 209, causing the Z-type lock 209 to flip over. The top horizontal part of the Z-type lock 209 flips downward, thereby releasing the lock on the I-shaped retaining ring 204. At this time, the piston rod 202, the I-shaped retaining ring 204, and the piston 203 are quickly reset under the pulling force of the elastic band 207, realizing the air sample collection operation.

[0020] Please refer to this carefully. Figures 1-3 The upper surface of the top horizontal part of the Z-type latch 209 is arc-shaped, and the lower surface of the top horizontal part of the Z-type latch 209 is right-angled; When the I-shaped retaining ring 204 and the Z-shaped locking buckle 209 are engaged, there is a gap between the bottom of the piston 203 and the bottom of the inner wall of the gas storage chamber 106.

[0021] In this embodiment, it should be noted that the annular part of the I-shaped retaining ring 204 is an arc surface. By pressing the arc surface of the I-shaped retaining ring 204 against the arc surface of the top horizontal part of the Z-type lock 209, the Z-type lock 209 can be flipped more smoothly. The Z-shaped latch 209 can be locked by engaging the lower surface of the horizontal end of the top of the latch 209 at a right angle with the lower annular part of the I-shaped retaining ring 204. The upward movement of the I-shaped retaining ring 204 can be locked. When the I-shaped retaining ring 204 is engaged with the Z-shaped latch 209, the structure of the gap space between the bottom of the piston 203 and the bottom of the inner wall of the air storage chamber 106 allows the I-shaped retaining ring 204 to be squeezed slightly downward when the Z-shaped latch 209 is flipped to unlock, providing space for the flipping and unlocking of the Z-shaped latch 209.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air environment sampling device, comprising a sampling bucket assembly (1), characterized in that, The sampling bucket assembly (1) includes an outer bucket (101), an inner cylinder (102), and an I-shaped separator (104). The inner cylinder (102) is fixed to the top of the inner wall of the outer cylinder (101) and is flush with the top of the outer cylinder (101). Multiple I-shaped isolation members (104) are provided. The multiple I-shaped isolation members (104) are evenly distributed and fixed to the inner side of the inner cylinder (102) in the vertical direction. A first through groove (103) is provided at the position where the two discs of the I-shaped isolation member (104) are aligned with the outer side of the inner cylinder (102). A second through groove (105) is provided on the disc below the I-shaped isolation member (104). Multiple inner cylinders (102) together form multiple air storage chambers (106). The top of the outer cylinder (101) is provided with a suction component (2) extending to the multiple air storage chambers (106). The suction component (2) works in conjunction with the multiple air storage chambers (106) to achieve synchronous collection of air samples at multiple environmental heights.

2. The air environment sampling device according to claim 1, characterized in that, The suction assembly (2) includes a cross-shaped fixing frame (201), a piston rod (202), a piston (203), and a lifting ring (205); A clamping ring (109) is fixed to the top of the outer side of the outer barrel (101), and the cross fixing bracket (201) is distributed on the top of the outer barrel (101) and welded to the clamping ring (109); The piston rod (202) passes through the cross-shaped fixing frame (201), multiple I-shaped isolation pieces (104), and gas storage chamber (106) from above to the bottom gas storage chamber (106). The piston (203) is distributed inside multiple gas storage chambers (106) and is fixedly connected to the piston rod (202). An air inlet pipe (107) is fixed on the outside of the outer barrel (101), extending through the outer barrel (101) and the inner barrel (102) and communicating with the bottom of the inner cavity of the air storage chamber (106). The upward movement of the air storage chamber (106) generates negative pressure and draws air into the air storage chamber (106) through the air inlet pipe (107) to realize air sample collection. The lifting ring (205) is rotatably mounted on the top of the piston rod (202) to provide a binding position for the lifting rope.

3. An air environment sampling device according to claim 2, characterized in that, The number of pistons (203) is one more than the number of first through slots (103), and the uppermost piston (203) is located above the uppermost first through slot (103); The outer diameter of the piston (203) matches the inner diameter of the inner cylinder (102).

4. An air environment sampling device according to claim 2, characterized in that, The suction assembly (2) also includes an I-shaped retaining ring (204), a guide shaft (206), an elastic band (207), a fixing seat (208), a Z-shaped lock (209), and a connecting rope (210); The guide shafts (206) are respectively fixed to the inner sides of the four concave arms of the cross bracket (201), and multiple guide shafts (206) are provided inside a single concave arm. A fixing post (111) is fixed near the bottom of the outer barrel (101). Four elastic rubber bands (207) are provided. The four elastic rubber bands (207) are arranged in a ring and one end of the elastic rubber band (207) is fixedly connected to the top of the uppermost piston (203). The other end of the elastic rubber band (207) passes through the space between the inner side of the concave arm of the cross fixing frame (201) and the top of the guide shaft (206) and extends downward to connect and fix with the fixing post (111). The elastic rubber band (207) is used to provide a restoring elastic force for the piston rod (202) and piston (203) after they are moved down. The I-shaped retaining ring (204) is fixed to the outside of the piston rod (202) and distributed above the cross-shaped fixing frame (201). The fixing seat (208) is fixed to the top of a concave arm of the cross-shaped fixing frame (201). The Z-shaped buckle (209) is distributed inside the fixing seat (208) and the top corner of the Z-shaped buckle (209) is rotatably connected to the fixing seat (208) through a rotating shaft. The top horizontal portion of the Z-shaped latch (209) extends close to the piston rod (202) and coincides with the moving area of ​​the I-shaped retaining ring (204). The bottom horizontal portion of the Z-shaped latch (209) is in contact with the upper surface of the concave arm of the cross-shaped fixing bracket (201). The top horizontal portion of the Z-shaped latch (209) is inserted into the inner side of the downward-moving I-shaped retaining ring (204) to lock the piston rod (202) and piston (203) in the downward-moving state. The connecting rope (210) is connected to one end of the bottom horizontal part of the Z-type lock (209). When the connecting rope (210) is pulled, the fixing seat (208) flips to release the locking of the I-shaped retaining ring (204).

5. An air environment sampling device according to claim 4, characterized in that, The upper surface of the top horizontal part of the Z-type latch (209) is arc-shaped, and the lower surface of the top horizontal part of the Z-type latch (209) is right-angled; When the I-shaped retaining ring (204) and the Z-shaped latch (209) are engaged, there is a gap between the bottom of the piston (203) and the bottom of the inner wall of the gas storage chamber (106).

6. An air environment sampling device according to claim 2, characterized in that, The air intake pipes (107) are arranged in a ring and the number of them is the same as that of the gas storage chambers (106). The height of the multiple air intake pipes (107) corresponds one-to-one with the height of the multiple gas storage chambers (106). The air inlet pipe (107) is fitted with a sampling hose (108) on the outside, and a C-shaped clamp (110) is fixed on the outside of the clamp ring (109) for the sampling hose (108) to be snapped and fixed.

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