一种大气污染物采样头
By optimizing the structural design of the sampling head, and combining negative pressure collection, one-way sealing, and installation snap-fit mechanism, the problems of decreased sealing performance and cumbersome operation were solved, achieving efficient and reliable pollutant sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN XINRUILONGCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional sampling heads are prone to decreased sealing performance and reverse leakage of contaminants. The connection and operation are cumbersome and inconvenient, which affects the service life of the equipment and the sampling efficiency.
A sampling head was designed, comprising a negative pressure collection mechanism, a one-way sealing mechanism, and a mounting clip mechanism. By integrating the one-way pipe, the clip-on pipe, and the collection box, the airflow path is optimized. The precise fit between the inner solid ring and the sealing plate, combined with the ingenious design of the moving sleeve and the pressure skid plate, enables rapid connection and separation.
It improves sampling efficiency and accuracy, prevents pollutant leakage, simplifies operation procedures, extends equipment lifespan, and reduces the risk of secondary pollution.
Smart Images
Figure CN224518263U_ABST
Abstract
Claims
1. An atmospheric pollutant sampling head comprising a negative pressure collection mechanism, a one-way seal mechanism and a mounting clamping mechanism, characterized in that: The negative pressure collection mechanism includes a one-way pipe (1), a snap-fit outer pipe (2), a snap-fit inner pipe (3), a support pipe (4), a collection box (5), and a negative pressure fan (6). The side wall of the one-way pipe (1) is connected to the snap-fit outer pipe (2). The snap-fit inner pipe (3) extends into the snap-fit outer pipe (2). The support pipe (4) is installed at the top end of the collection box (5) and is connected to the snap-fit inner pipe (3). The negative pressure fan (6) is installed on the side wall of the collection box (5). The one-way sealing mechanism includes an inner retaining ring (7), a sealing plate (8), a sliding rod (9), and a support. The support platform (10), sealing spring (11), and moving plate (12) are installed. The inner retaining ring (7) is fixedly installed on the inner wall of the one-way tube (1). The support platform (10) is installed at one end of the one-way tube (1). The sliding rod (9) is slidably installed on the support platform (10). The sealing plate (8) is installed at one end of the sliding rod (9). The moving plate (12) is installed at the other end of the sliding rod (9). The sealing spring (11) is installed between the moving plate (12) and the support platform (10). The sealing spring (11) pushes the sliding rod (9), and the sealing plate (8) and the inner retaining ring (7) are unidirectionally sealed.
2. An atmospheric pollution sampling head according to claim 1, characterised in that: The mounting and snapping mechanism includes a movable sleeve (13), a pressure groove (14), a pressure pry plate (15), a pressure pry groove (16), a threaded ring (201), and a thrust bearing (17). The movable sleeve (13) is longitudinally slidably mounted on the outer wall of the snapping outer tube (2). The pressure groove (14) is set on the movable sleeve (13). The pressure pry plate (15) is rotatably mounted on the outer wall of the snapping outer tube (2). The pressure pry groove (16) is set on the outer wall of the snapping outer tube (2). The top and bottom ends of the pressure groove (14) can press against the pressure pry plate (15) respectively. The threaded ring (201) is threadedly connected to the outer wall of the snapping outer tube (2). The thrust bearing (17) is installed between the movable sleeve (13) and the threaded ring (201). The rotation of the threaded ring (201) pushes the movable sleeve (13) to move longitudinally.
3. An atmospheric pollution sampling head according to claim 1, characterised in that: A connecting pipe (18) is provided on the side wall of the one-way pipe (1), and the clamping pipe is connected to the connecting pipe (18).
4. An atmospheric pollution sampling head according to claim 3, characterised in that: A connecting plate (19) is installed at one end of the snap-fit inner tube (3) and the snap-fit outer tube (2), and the snap-fit inner tube (3) is connected to the support tube (4) and the snap-fit outer tube (2) is connected to the connecting tube (18) through the connecting plate (19).
5. An atmospheric pollutant sampling head according to claim 2, characterized in that: A reset spring (20) is installed between the bottom end of the movable sleeve (13) and the bottom end of the snap-fit outer tube (2), and the reset spring (20) pushes the movable sleeve (13) to move upward.
6. An atmospheric pollution sampling head according to claim 2, characterised in that: The pressure groove (14) is symmetrically equipped with pressure shafts (21) at the top and bottom, and the top pressure shaft (21) and the bottom pressure shaft (21) can push against the pressure skid plate (15) respectively, so that the pressure skid plate (15) extends into or away from the pressure skid groove (16).
7. An atmospheric pollution sampling head according to claim 1, characterised in that: A guide frame (22) is installed on one end face of the sealing plate (8), and a guide rail (23) is installed on the inner wall of the one-way tube (1). The guide frame (22) is slidably guided on the guide rail (23).
8. An atmospheric pollution sampling head according to claim 1, characterised in that: The collection box (5) is equipped with a discharge pipe (24) on its side.