Dust sampling filter membrane rapid replacement device for environmental protection law enforcement detection

Abstract

The utility model discloses a dust sampling filter membrane quick replacement device for environmental protection law enforcement detection, and relates to the field of environmental protection law enforcement detection, the dust sampling filter membrane quick replacement device comprises a main supporting block, side through grooves are symmetrically formed in the side edge of the main supporting block in the vertical direction, and sealing side plates are vertically clamped on the inner side edges of the side through grooves; a ventilation grid is fixedly clamped to the open end of the main supporting block, a telescopic connecting rod is vertically arranged on the bottom face of the main supporting block, the outer side edge of the telescopic connecting rod is fixedly sleeved with a handle sleeve body, a bottom screw hole is formed in the bottom face of the main supporting block, and a butt joint bottom block is in butt joint with the bottom face of the main supporting block. A connecting screw rod is fixedly inserted into one end of the butt-joint bottom block, a clamping groove is formed in the bottom end of the butt-joint bottom block, a split structure is adopted, the size is small after disassembly, carrying and using are convenient, meanwhile, sampling operation is actively sucked when the device is held by hand, and sampling is more efficient and comprehensive; and the connecting structure of the buckle enables disassembly and replacement to be simpler.

Description

Technical Field

[0001] This utility model relates to the field of environmental law enforcement testing technology, specifically a quick replacement device for dust sampling filter membranes used in environmental law enforcement testing. Background Technology

[0002] Environmental administrative law enforcement refers to the activities of environmental administrative law enforcement agencies, authorized by law, to manage various behaviors and events by entities and individuals that affect or may affect the environment. Strengthening environmental administrative law enforcement and preventing environmental pollution and other public hazards plays an extremely important role in protecting and improving the environment and realizing the basic national policy of environmental protection.

[0003] When conducting environmental enforcement, it is necessary to sample the air containing dust. The traditional method involves fixing the sampling filter membrane inside the machine and then having personnel place the machine at the dusty air location to collect samples. However, passively allowing dust to adhere to the sampling filter membrane is inefficient and affects sampling efficiency. In addition, the fixed installation of the membrane inside the machine makes subsequent disassembly and replacement inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a quick-replacement device for dust sampling filter membranes used in environmental law enforcement testing. This addresses the issue raised in the background art where, during current environmental law enforcement, it is necessary to sample air containing dust. Traditionally, the sampling filter membrane is fixed inside the machine body, and personnel then place the machine at the dusty air location to collect samples. However, passively allowing dust to adhere to the sampling filter membrane is inefficient and affects sampling efficiency. Furthermore, the fixed installation of the membrane inside the machine body makes subsequent disassembly and replacement inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change device for dust sampling filter membranes used in environmental law enforcement testing includes a main support block. The main support block has symmetrically vertically symmetrical side passages on its sides. A sealing side plate is vertically engaged with the inner side of each side passage. A ventilated grille is fixedly engaged with the open end of the main support block. A telescopic connecting rod is vertically arranged on the bottom surface of the main support block. A handle sleeve is fixedly fitted onto the outer side of the telescopic connecting rod. A bottom screw hole is formed on the bottom surface of the main support block. A docking bottom block is connected to the bottom surface of the main support block. A connecting screw is fixedly inserted into one end of the docking bottom block. A locking groove is formed at the bottom end of the docking bottom block. A fixed inner box is fixedly arranged on the inner side of the main support block. A vertically fixed extraction fan is installed in the box. A main power supply is horizontally fixed on the inner bottom surface of the main support block. A snap-fit ​​groove is symmetrically opened on the inner bottom and top surfaces of the main support block. A limiting groove is horizontally opened on the inner side of the snap-fit ​​groove. An inner snap-fit ​​frame is vertically snapped into the inner side of the main support block. A stabilizing groove is horizontally symmetrically opened on the top and bottom surfaces of the inner snap-fit ​​frame. A snap-fit ​​connecting block is symmetrically connected to the top and bottom surfaces of the inner snap-fit ​​frame. A stabilizing side groove is opened on the open side of the inner snap-fit ​​frame. A matching snap-fit ​​frame is snapped into the inner side of the stabilizing side groove. A sampling filter membrane is fixedly installed on the inner side of the matching snap-fit ​​frame. A top snap-fit ​​ball is fixedly installed at the top of the telescopic connecting rod.

[0007] In a preferred embodiment of the present invention, the main support block has two open ends and two side through grooves. The two side through grooves are parallel and symmetrically arranged on both sides of the main support block near the open ends, and the interior of the side through grooves is connected to the interior of the main support block.

[0008] In a preferred embodiment of this utility model: the side of the sealing side plate is fixedly connected to both sides of the inner snap-fit ​​frame, and the internal protrusion of the side through groove is snap-fitted to the side groove of the sealing side plate. The telescopic connecting rod adopts a telescopic rod structure, and the top of the telescopic connecting rod is located near the opening end of the snap-fit ​​groove.

[0009] In a preferred embodiment of this utility model: the glove body is fixedly sleeved on the outer bottom end of the telescopic connecting rod, the bottom screw hole is opened on the bottom center line of the main support block near the center, and one end of the connecting screw is threadedly fixedly connected to the inner side of the bottom screw hole.

[0010] In a preferred embodiment of this utility model: the bottom end of the snap-fit ​​groove is open, the fixed inner box is fixedly installed on the side of the main support block near the ventilation grille, and the two sides of the fixed inner box are provided with isolation net structures. The extraction fan and the main power supply are electrically connected to each other. The snap-fit ​​grooves are arranged in parallel and superimposed on each other, and the two ends of the snap-fit ​​grooves extend horizontally and are connected to the two ends of the side passage groove. The snap-fit ​​grooves and the inside of the side passage groove are connected.

[0011] In a preferred embodiment of this utility model: the limiting inner groove is horizontally opened at the inner center line of the snap-fit ​​channel, the top and bottom surfaces of the inner snap-fit ​​frame are horizontally snap-fitted onto the inner side of the limiting inner groove, and the stabilizing groove is horizontally and symmetrically opened at the center line of the top and bottom surfaces of the inner snap-fit ​​frame.

[0012] In a preferred embodiment of the present invention, one end of the locking block is locked onto the inner side of the stabilizing groove, and the other end of the locking block is locked onto the inner side of the limiting inner groove. The stabilizing side groove is U-shaped and opened on the inner side of an opening of the inner locking frame.

[0013] In a preferred embodiment of this utility model: the edge of the mating frame is engaged with the inner side of the stabilizing side groove by a locking block, and the top of the top locking ball is engaged with the inner side of the locking groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention connects the top end of a telescopic linkage to one end of a base block on the bottom surface of a main support block. A connecting screw at the top end is threaded into the bottom screw hole, creating a fixed connection between the telescopic linkage and the main support block. This provides effective anti-slip protection when gripping the handle. After the telescopic linkage is pulled to a specified length, one end of the main support block extends to a designated detection position. Simultaneously, adjusting the main support block causes the top catch ball to rotate within its catch groove, allowing adjustment to a specific angle for data collection. Powered by the main power supply, the extraction fan operates, drawing dust from a designated location through a ventilation grille into the main support block. After entering the internal dust adsorption set on the sampling filter membrane, sampling is formed. After pushing the side sealing plate, it is pushed outward of the side passage groove, allowing the inner snap-fit ​​frame to move horizontally along the snap-fit ​​groove, while the snap-fit ​​block moves horizontally along the limiting inner groove. After the inner snap-fit ​​frame extends beyond the specified area outside the opening of the side passage groove, it will not fall off due to the restriction of the snap-fit ​​block. After the matching snap-fit ​​frame is removed from the inside of the stabilizing side groove, the sampling filter membrane can be used for collection and testing. The modular structure makes it compact and easy to carry after disassembly. At the same time, the active sampling operation when handheld makes the sampling more efficient and comprehensive, and the snap-fit ​​connection structure makes disassembly and replacement easier. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of a quick-change device for dust sampling filter membranes used in environmental law enforcement testing;

[0018] Figure 2 A schematic diagram showing the structural details of the bottom connection of the main support block of a quick-change dust sampling filter membrane device for environmental law enforcement testing.

[0019] Figure 3 A structural schematic diagram showing the connection details of the three-dimensional cross-section of the main support block of a quick-change dust sampling filter membrane device for environmental law enforcement testing.

[0020] Figure 4 A schematic diagram showing the structural details of the three-dimensional connection of the inner snap-fit ​​frame of a quick-change device for dust sampling filter membranes used in environmental law enforcement testing.

[0021] Figure 5 This is a schematic diagram showing the structural details of the telescopic connecting rod of a quick-change dust sampling filter membrane device for environmental law enforcement testing.

[0022] In the diagram: 1. Main support block; 2. Side passage groove; 3. Sealing side plate; 4. Ventilation grille; 5. Telescopic connecting rod; 6. Handle glove body; 7. Bottom screw hole; 8. Connecting bottom block; 9. Connecting screw; 10. Snap-fit ​​groove; 11. Fixed inner box; 12. Extraction fan; 13. Main power supply; 14. Snap-fit ​​channel; 15. Limiting inner groove; 16. Inner snap-fit ​​frame; 17. Stabilizing groove; 18. Snap-fit ​​connecting block; 19. Stabilizing side groove; 20. Matching snap-fit ​​frame; 21. Sampling filter membrane; 22. Top snap-fit ​​ball. Detailed Implementation

[0023] Please see Figure 1-2In this embodiment of the present invention, a quick-replacement device for dust sampling filter membranes used in environmental law enforcement testing includes a main support block 1. Side passage grooves 2 are symmetrically and vertically formed on the sides of the main support block 1. Both ends of the main support block 1 are open. There are two side passage grooves 2, which are parallel and symmetrically formed through each other on both sides of the main support block 1 near the opening ends. The interior of the side passage grooves 2 is connected to the interior of the main support block 1. A sealing side plate 3 is vertically engaged with the inner side of the side passage groove 2. A breathable grille 4 is fixedly engaged with the opening end of the main support block 1. A telescopic connecting rod 5 is vertically arranged on the bottom surface of the main support block 1. The sides of the sealing side plate 3 are fixedly connected to both sides of the inner engaging frame 16. The internal protrusion of the side passage groove 2 is snapped into the side channel of the sealing side plate 3. The telescopic connecting rod 5 adopts a telescopic rod structure, and the top of the telescopic connecting rod 5 is located near the opening end of the snap-fit ​​groove 10. The outer side of the telescopic connecting rod 5 is fixedly sleeved with the handle glove body 6. The bottom surface of the main support block 1 is provided with a bottom screw hole 7. The bottom surface of the main support block 1 is connected to the bottom block 8. One end of the bottom block 8 is fixedly inserted with a connecting screw 9. The handle glove body 6 is fixedly sleeved at the bottom end of the telescopic connecting rod 5. The bottom screw hole 7 is located near the center of the bottom surface of the main support block 1. One end of the connecting screw 9 is threadedly fixedly connected to the inner side of the bottom screw hole 7. The bottom end of the bottom block 8 is provided with a snap-fit ​​groove 10.

[0024] Please see Figure 3-5In this embodiment of the present invention, a quick-replacement device for dust sampling filter membranes used in environmental law enforcement testing is provided. A fixed inner box 11 is fixedly installed on the inner side of the main support block 1. An extraction fan 12 is vertically fixedly installed on the fixed inner box 11. A main power supply 13 is horizontally fixedly installed on the inner bottom surface of the main support block 1. A snap-fit ​​groove 14 is symmetrically opened on the inner bottom and top surfaces of the main support block 1. The bottom end of the snap-fit ​​groove 14 is open. The fixed inner box 11 is fixedly installed on the inner side of the main support block 1 near the ventilation grille 4. The inner box 11 is located at the side, and the two sides of the fixed inner box 11 are provided with isolation net structures. The extraction fan 12 and the main power supply 13 are electrically connected to each other. The snap-fit ​​channels 14 are arranged in parallel and superimposed, and the two ends of the snap-fit ​​channels 14 are horizontally extended and connected to the two ends of the side passage 2. The snap-fit ​​channels 14 are connected to the inside of the side passage 2. The inner side of the snap-fit ​​channel 14 is horizontally provided with a limiting inner groove 15. The inner side of the main support block 1 is vertically snapped with an inner snap-fit ​​frame 16. The top surface of the inner snap-fit ​​frame 16 and the inner side of the main support block 1 are connected to the inner snap-fit ​​frame 16. A stabilizing groove 17 is symmetrically and horizontally formed on the bottom surface. A limiting inner groove 15 is horizontally formed at the inner centerline of the snap-fit ​​channel 14. The top and bottom surfaces of the inner snap-fit ​​frame 16 are horizontally snapped onto the inner side of the limiting inner groove 15. The stabilizing groove 17 is symmetrically and horizontally formed at the centerline of the top and bottom surfaces of the inner snap-fit ​​frame 16. The top and bottom surfaces of the inner snap-fit ​​frame 16 are symmetrically connected with a locking block 18. A stabilizing side groove 19 is formed on the open side of the inner snap-fit ​​frame 16. One end of the locking block 18 is snapped onto the inner side of the stabilizing groove 17. The other end of the locking block 18 is correspondingly locked to the inner side of the limiting inner groove 15. The stabilizing side groove 19 is opened in the shape of a "U" on the inner side of an opening in the inner locking frame 16. The inner side of the stabilizing side groove 19 is locked to a mating frame 20. The inner side of the mating frame 20 is fixedly set with a sampling filter membrane 21. The top of the telescopic connecting rod 5 is fixedly set with a top locking ball 22. The edge of the mating frame 20 is locked to the inner side of the stabilizing side groove 19 by a locking block. The top of the top locking ball 22 is locked to the inner side of the locking groove 10.

[0025] The working principle of this utility model is as follows:

[0026] The top end of the telescopic link 5 is connected to one end of the bottom block 8 and positioned on the bottom surface of the main support block 1. It is then fixedly connected to the bottom screw hole 7 via a connecting screw 9 at the top end, forming a fixed connection between the telescopic link 5 and the main support block 1. This provides effective anti-slip when the hand grips the glove body 6. After the telescopic link 5 is pulled to a specified length, one end of the main support block 1 extends to the specified detection position. Simultaneously, a prying operation on the main support block 1 causes the top locking ball 22 to rotate within the locking groove 10, allowing the main support block 1 to be adjusted to a specified angle for data acquisition. Powered by the main power supply 13, the extraction fan 12 is controlled to operate. The ventilation grille 4 at the end draws dust from a designated location into the interior of the main support block 1. The dust inside is then adsorbed and set onto the sampling filter membrane 21 to form a sampling process. After pushing the sealing side plate 3 on the side, it is pushed outward into the side passage groove 2, causing the inner snap-fit ​​frame 16 to move horizontally along the snap-fit ​​groove 14, while the snap-fit ​​connecting block 18 moves horizontally along the limiting inner groove 15. After the inner snap-fit ​​frame 16 extends beyond the opening of the side passage groove 2 to a designated area, it will not fall off due to the restriction of the snap-fit ​​connecting block 18. After the mating snap-fit ​​frame 20 is removed from the interior of the stabilizing side groove 19, the sampling filter membrane 21 can be used for collection and testing.

[0027] 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. A dust sampling filter membrane rapid replacement device for environmental protection law enforcement detection, comprising a main support block (1), characterized in that, The main support block (1) has vertically symmetrically provided side through grooves (2) on its side. A sealing side plate (3) is vertically snapped into the inner side of the side through groove (2). A ventilated grille (4) is fixedly snapped into the open end of the main support block (1). A telescopic connecting rod (5) is vertically provided on the bottom surface of the main support block (1). A handle glove body (6) is fixedly sleeved on the outer side of the telescopic connecting rod (5). A bottom screw hole (7) is provided on the bottom surface of the main support block (1). A docking bottom block (8) is connected to the bottom surface of the main support block (1). A connecting screw (9) is fixedly inserted into one end of the docking bottom block (8). A snap-fit ​​groove (10) is provided at the bottom end of the docking bottom block (8). A fixed inner box (11) is fixedly provided on the inner side of the main support block (1). An extraction fan (12) is fixedly provided vertically in the fixed inner box (11). A main power supply (13) is fixedly installed horizontally on the inner bottom surface of the main support block (1). A snap-fit ​​groove (14) is symmetrically opened on the inner bottom and top surfaces of the main support block (1). A limiting inner groove (15) is horizontally opened on the inner side of the snap-fit ​​groove (14). An inner snap-fit ​​frame (16) is vertically snapped on the inner side of the main support block (1). A stabilizing groove (17) is symmetrically opened on the top and bottom surfaces of the inner snap-fit ​​frame (16). A snap-fit ​​connecting block (18) is symmetrically connected on the top and bottom surfaces of the inner snap-fit ​​frame (16). A stabilizing side groove (19) is opened on the opening side of the inner snap-fit ​​frame (16). A matching snap-fit ​​frame (20) is snapped on the inner side of the stabilizing side groove (19). A sampling filter membrane (21) is fixedly installed on the inner side of the matching snap-fit ​​frame (20). A top snap-fit ​​ball (22) is fixedly installed at the top of the telescopic connecting rod (5).

2. The dust sampling membrane rapid replacement device for environmental protection law enforcement detection according to claim 1, characterized in that, The main support block (1) has two open ends and two side through grooves (2). The two side through grooves (2) are parallel and symmetrically opened on both sides of the main support block (1) near the open ends, and the interior of the side through grooves (2) is connected to the interior of the main support block (1).

3. The device according to claim 1, characterized in that, The side of the sealing side plate (3) is fixedly connected to both sides of the inner snap-fit ​​frame (16), and the internal protrusion of the side through groove (2) is snap-fitted to the side groove of the sealing side plate (3). The telescopic connecting rod (5) adopts a telescopic rod structure, and the top of the telescopic connecting rod (5) is located near the opening end of the snap-fit ​​groove (10).

4. The device according to claim 1, characterized in that, The glove body (6) is fixedly sleeved on the outer bottom end of the telescopic connecting rod (5), and the bottom screw hole (7) is opened on the bottom center line of the main support block (1) near the center. One end of the connecting screw (9) is threadedly fixedly connected to the inner side of the bottom screw hole (7).

5. The rapid replacement device for dust sampling filter membrane used in environmental protection law enforcement detection according to claim 1, characterized in that, The bottom end of the snap-fit ​​groove (10) is open. The fixed inner box (11) is fixedly installed on the side of the main support block (1) near the ventilation grille (4). The two sides of the fixed inner box (11) are provided with isolation net structures. The extraction fan (12) and the main power supply (13) are electrically connected to each other. The snap-fit ​​channels (14) are arranged in parallel and stacked with each other. The two ends of the snap-fit ​​channels (14) are horizontally extended and connected to the two ends of the side passage (2). The snap-fit ​​channels (14) are connected to the inside of the side passage (2).

6. The rapid replacement device for dust sampling filter membrane used in environmental protection law enforcement detection according to claim 1, characterized in that, The limiting inner groove (15) is horizontally opened at the inner center line of the snap-fit ​​groove (14), the top and bottom surfaces of the inner snap-fit ​​frame (16) are horizontally snap-fitted to the inner side of the limiting inner groove (15), and the stabilizing groove (17) is horizontally and symmetrically opened at the center line of the top and bottom surfaces of the inner snap-fit ​​frame (16).

7. The device according to claim 1, wherein, One end of the locking block (18) is locked to the inner side of the stabilizing groove (17), and the other end of the locking block (18) is locked to the inner side of the limiting inner groove (15). The stabilizing side groove (19) is opened in a U-shape on the inner side of an opening of the inner locking frame (16).

8. The device according to claim 1, characterized in that, The edge of the matching frame (20) is snapped into the inner side of the stabilizing side groove (19) by a snap-fit ​​block, and the top of the top snap-fit ​​ball (22) is snapped into the inner side of the snap-fit ​​groove (10).

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