Air sampling device

Abstract

The utility model relates to the technical field of air detection, in particular to an air sampling device which comprises a bottom plate, a moving frame, a lead screw sliding table, a connecting plate, a placing table, a communicating assembly, a sampling assembly and two guide rails, the two guide rails are symmetrically arranged at the top of the bottom plate, and the moving frame is installed on the two guide rails in a sliding mode. The lead screw sliding table is horizontally arranged at the top of the bottom plate, the connecting plate is installed at the moving end of the lead screw sliding table and connected with the outer wall of the bottom end of the moving frame, the placing table is installed at the top of the bottom plate, a plurality of sampling barrels are arranged on the placing table at equal intervals, and the top ends of the sampling barrels are in threaded connection with sealing covers. A through hole is formed in the top of the sealing cover, the communicating assembly is installed at the top of the bottom plate, the sampling assembly is installed at the top end of the movable frame, and the sampling assembly is matched with the communicating assembly in an inserted connection mode.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection, in particular to an air sampling device. Background Art

[0002] Air sampling is to collect the air in a specific area as a sample for testing to determine the overall air quality of the area. In order to sample the air more conveniently, an air sampling device is proposed.

[0003] The Chinese utility model patent with announcement number CN220120484U discloses an air sampling device, which includes a main body, a support plate fixedly connected to the left inner surface of the main body, an air pump fixedly connected to the upper surface of the support plate, a pipe fixedly connected to the output end and the input end of the air pump, a connecting pipe fixedly connected to the surface of the pipe installed at the output end of the air pump, a first solenoid valve installed on the surface of the pipe away from the output end of the air pump, the first solenoid valve is located on the right side of the connecting pipe, and a shell is fixedly connected to the surface of the connecting pipe away from the pipe. Through the above structure, by setting the first solenoid valve to cooperate with the second solenoid valve and the air pressure sensor, when the sampling bottle is full, the second solenoid valve can be controlled to close, and then the first solenoid valve can be opened to discharge the excess air to complete the air sampling, which is conducive to preventing the air sample in the sampling bottle from escaping, and preventing the outside air from mixing into the sampling bottle, so as to ensure the accuracy of the air sample detection result.

[0004] However, the above patent still has the following shortcomings in actual use: the patent can only sample the air at one location and cannot sample the air at multiple locations, which affects the results of subsequent air detection. Utility Model Content

[0005] The utility model aims to provide an air sampling device to solve the problem in the above-mentioned background technology that it is impossible to sample air at multiple locations, thus affecting subsequent air detection results.

[0006] The technical solution of the utility model is:

[0007] An air sampling device comprises a base plate, a movable frame, a screw slide, a connecting plate, a placement table, a connecting component, a sampling component and two guide rails, wherein the two guide rails are symmetrically arranged on the top of the base plate, the movable frame is slidably installed on the two guide rails, the screw slide is horizontally arranged on the top of the base plate, the connecting plate is installed on the movable end of the screw slide, and the connecting plate is connected to the outer wall of the bottom end of the movable frame, the placement table is installed on the top of the base plate, a plurality of sampling tubes are evenly spaced on the placement table, a sealing cover is screwed on the top end of the sampling tube, a through hole is provided on the top of the sealing cover, the connecting component is installed on the top of the base plate, and the connecting component is plug-fitted with the through hole, the sampling component is installed on the top end of the movable frame, and the sampling component is plug-fitted with the connecting component.

[0008] Furthermore, the connecting component includes a lifting platform, four hydraulic push rods and multiple connecting parts. The four hydraulic push rods are distributed in a rectangular shape on the top of the base plate. The lifting platform is installed on the output ends of the four hydraulic push rods. Multiple connecting parts are arranged on the lifting platform at equal intervals, and the bottom ends of the multiple connecting parts are respectively plugged into the through holes on the corresponding sealing covers. Each of the connecting parts includes a connecting pipe and a first solenoid valve. The connecting pipe is vertically arranged on the lifting platform, and the bottom end of the connecting pipe is plugged into the through hole. The first solenoid valve is installed on the connecting pipe.

[0009] Furthermore, the sampling assembly includes a carrier, an adjustment plate, an electric push rod, a vacuum cylinder, a piston, a push rod, a push block, a push wheel, a spring, a driving component, two vertical rods and two brackets. The carrier is mounted on the top of the mobile frame, the two vertical rods are symmetrically arranged on the top of the mobile frame, and the top ends of the two vertical rods are connected to the inner top ends of the carrier, the adjustment plate is slidably mounted on the two vertical rods, the electric push rod is vertically arranged on the top of the carrier, and the output end of the electric push rod is connected to the adjustment plate, the two brackets are symmetrically arranged at the bottom of the adjustment plate, the vacuum cylinder is vertically arranged at the bottom ends of the two brackets, and the bottom of the vacuum cylinder is provided with an outlet connected to the interior thereof. The air pipe, the bottom end of the air outlet pipe is plugged into the connecting pipe in the corresponding connecting component, the piston is slidably installed in the air pump, the push rod is vertically arranged on the top of the piston, and the top of the push rod extends to the top of the air pump, the push block is installed on the top of the push rod, and the push wheel is rotatably installed on the top of the push block, the spring sleeve is arranged on the outside of the push rod, and the two ends of the spring are respectively connected to the top of the air pump and the bottom of the push block, the driving component is installed at the bottom of the adjusting plate, and the driving component is used to drive the piston to slide reciprocally, and an air inlet pipe connected to the interior of the air pump is provided on the outer wall of the bottom end of the air pump, and a second solenoid valve is provided on the air inlet pipe and the air outlet pipe.

[0010] Furthermore, the driving component includes a driving seat, a driving shaft, a driving cam and a driving motor, the driving seat is installed at the bottom of the adjusting plate, the driving shaft is rotatably installed on the driving seat, the driving cam is installed on the driving shaft, and the bottom end of the driving cam is in contact with the top end of the driving wheel, the driving motor is horizontally arranged on the outer wall of the driving seat, and the output shaft of the driving motor is connected to the driving shaft.

[0011] Furthermore, a plurality of grooves arranged at equal intervals are provided on the top of the placement table, and the plurality of grooves are used to place a plurality of sampling tubes.

[0012] Furthermore, a limiting ring is provided on the outer wall of the top end of the connecting pipe and is overlapped with the top of the lifting platform.

[0013] The utility model provides an air sampling device through improvement, which has the following improvements and advantages compared with the prior art:

[0014] First: the utility model connects the connecting component with the inside of the sealing covers on multiple sampling tubes through the operation of the connecting component, and then the screw slide works to drive the moving frame to move on the two guide rails using the connecting plate, and the moving frame drives the sampling component to move above one of the sampling tubes, and then the sampling component works to connect its bottom end with the connecting component, and the sampling component works to draw the air at this place into this sampling tube. After a single sampling is completed, the sampling component works to cancel the connection with the connecting component at its bottom, and the screw slide works to drive the sampling component to move above another sampling tube, and then the sampling steps are repeated to draw air from another place into another sampling tube, completing the sampling operation of multiple air locations and improving the accuracy of subsequent air detection results.

[0015] Second: The utility model drives the adjustment plate to move downward on the two vertical rods through the operation of the electric push rod, and the adjustment plate drives the air outlet pipe to move downward and insert into the top of the connecting pipe, and then the driving component drives the piston to slide back and forth in the vacuum cylinder. When the piston moves upward in the vacuum cylinder, the piston draws air from the outside into the vacuum cylinder through the air inlet pipe. When the piston moves downward in the vacuum cylinder, the piston squeezes the air in the vacuum cylinder through the air outlet pipe into the connecting pipe, and then the air passes through the connecting pipe and the sealing cover and enters the sampling cylinder for collection. The second solenoid valve controls the gas in the air inlet pipe to flow only in one direction to the vacuum cylinder, and the gas in the air outlet pipe can only flow in one direction to the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 ;

[0018] Figure 2This is a three-dimensional structure diagram of the utility model. Figure 2 ;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the connection component of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the sampling tube of the utility model;

[0021] Figure 5 It is a partial three-dimensional structural schematic diagram of the utility model;

[0022] Figure 6 It is a partial cutaway view of the utility model Figure 1 ;

[0023] Figure 7 It is a partial cutaway view of the utility model Figure 2 ;

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the placement table of the utility model.

[0025] Description of reference numerals:

[0026] Bottom plate 1, moving frame 2, screw slide 3, connecting plate 4, placing table 5, sampling tube 51, sealing cover 52, through hole 53, groove 54, connecting component 6, lifting platform 61, hydraulic push rod 62, connecting component 63, connecting pipe 64, first solenoid valve 65, limiting ring 66, sampling component 7, supporting frame 71, adjusting plate 72, electric push rod 73, vacuum tube 74, outlet pipe 741, inlet pipe 742, second solenoid valve 743, piston 75, pushing rod 76, pushing block 77, pushing wheel 771, spring 772, driving component 78, driving seat 781, driving shaft 782, driving cam 783, driving motor 784, vertical rod 79, bracket 791, guide rail 8. DETAILED DESCRIPTION

[0027] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] The utility model provides an air sampling device through improvement. Figure 1-Figure 8As shown, it includes a base plate 1, a movable frame 2, a screw slide 3, a connecting plate 4, a placement table 5, a connecting component 6, a sampling component 7 and two guide rails 8, the two guide rails 8 are symmetrically arranged on the top of the base plate 1, the movable frame 2 is slidably installed on the two guide rails 8, the screw slide 3 is horizontally arranged on the top of the base plate 1, the connecting plate 4 is installed on the movable end of the screw slide 3, and the connecting plate 4 is connected to the outer wall of the bottom end of the movable frame 2, the placement table 5 is installed on the top of the base plate 1, and a plurality of sampling tubes 51 are evenly spaced on the placement table 5, the top of the sampling tube 51 is screwed with a sealing cover 52, and the top of the sealing cover 52 is provided with a through hole 53, the connecting component 6 is installed on the top of the base plate 1, and the connecting component 6 is plugged into the through hole 53, the sampling component 7 is installed on the top of the movable frame 2, and The sampling component 7 is plugged into the connecting component 6; the connecting component 6 is connected to the inside of the sealing cover 52 on the multiple sampling tubes 51 through the operation of the connecting component 6, and then the screw slide 3 uses the connecting plate 4 to drive the moving frame 2 to move on the two guide rails 8, and the moving frame 2 drives the sampling component 7 to move to the top of one of the sampling tubes 51, and then the sampling component 7 works to connect its bottom end with the connecting component 6, and the sampling component 7 works to draw the air here into this sampling tube 51. After a single sampling is completed, the sampling component 7 works to cancel the connection with the connecting component 6 at its bottom end, and the screw slide 3 drives the sampling component 7 to move to the top of another sampling tube 51, and then repeats the sampling steps to draw air from another place into another sampling tube 51, completing the sampling operation of multiple air locations, thereby improving the accuracy of subsequent air detection results.

[0029] Specifically, the connecting component 6 includes a lifting platform 61, four hydraulic push rods 62 and a plurality of connecting components 63. The four hydraulic push rods 62 are distributed in a rectangular shape on the top of the bottom plate 1. The lifting platform 61 is installed on the output ends of the four hydraulic push rods 62. The plurality of connecting components 63 are arranged on the lifting platform 61 at equal intervals, and the bottom ends of the plurality of connecting components 63 are respectively plugged into the through holes 53 on the corresponding sealing cover 52. Each of the connecting components 63 includes a connecting pipe 64 and a first solenoid valve 65. The connecting pipe 64 is vertically arranged on the lifting platform 61, and The bottom end of the connecting tube 64 is plugged into the through hole 53, and the first solenoid valve 65 is installed on the connecting tube 64; the four hydraulic push rods 62 work to drive the lifting platform 61 to move downward, and the lifting platform 61 drives the connecting tubes 64 in the multiple connecting components 63 to move downward and insert into the corresponding through holes 53 on the sealing cover 52. At this time, the connecting tubes 64 in the multiple connecting components 63 are respectively connected to the multiple sampling tubes 51, which is convenient for the subsequent sampling component 7 to work and perform sampling operations on multiple air locations. The first solenoid valve 65 controls the gas in the connecting tube 64 to flow only in one direction to the sampling tube 51.

[0030] Specifically, the sampling assembly 7 includes a carrier 71, an adjustment plate 72, an electric push rod 73, an air pump 74, a piston 75, a push rod 76, a push block 77, a push wheel 771, a spring 772, a driving component 78, two vertical rods 79 and two brackets 791. The carrier 71 is mounted on the top of the mobile frame 2, the two vertical rods 79 are symmetrically arranged on the top of the mobile frame 2, and the top ends of the two vertical rods 79 are connected to the inner top ends of the carrier 71, the adjustment plate 72 is slidably mounted on the two vertical rods 79, the electric push rod 73 is vertically arranged on the top of the carrier 71, and the output end of the electric push rod 73 is connected to the adjustment plate 72. The section plate 72 is connected, the two brackets 791 are symmetrically arranged at the bottom of the adjustment plate 72, the air pump 74 is vertically arranged at the bottom ends of the two brackets 791, the bottom of the air pump 74 is provided with an air outlet pipe 741 connected to the inside thereof, the bottom end of the air outlet pipe 741 is plugged with the connecting pipe 64 in the corresponding connecting component 63, the piston 75 is slidably installed in the air pump 74, the push rod 76 is vertically arranged on the top of the piston 75, and the top end of the push rod 76 extends to the top of the air pump 74, the push block 77 is installed on the top end of the push rod 76, and the push wheel 771 is rotatably installed on the top of the push block 77 The spring 772 is sleeved on the outside of the push rod 76, and the two ends of the spring 772 are respectively connected to the top of the vacuum cylinder 74 and the bottom of the push block 77. The driving component 78 is installed at the bottom of the adjustment plate 72, and the driving component 78 is used to drive the piston 75 to slide back and forth. An air inlet pipe 742 connected to the interior of the vacuum cylinder 74 is provided on the outer wall of the bottom end of the vacuum cylinder 74, and a second solenoid valve 743 is provided on the air inlet pipe 742 and the air outlet pipe 741. The electric push rod 73 drives the adjustment plate 72 to move downward on the two vertical rods 79, and the adjustment plate 72 drives the air outlet pipe 741 to move downward and insert it into the top of the connecting pipe 64. At the end, the driving component 78 works to drive the piston 75 to slide back and forth in the vacuum cylinder 74. When the piston 75 moves upward in the vacuum cylinder 74, the piston 75 draws air from the outside into the vacuum cylinder 74 through the air inlet pipe 742. When the piston 75 moves downward in the vacuum cylinder 74, the piston 75 squeezes the air in the vacuum cylinder 74 into the connecting pipe 64 through the air outlet pipe 741. Then the air passes through the connecting pipe 64 and the sealing cover 52 and enters the sampling cylinder 51 for collection. The second solenoid valve 743 controls the gas in the air inlet pipe 742 to flow to the vacuum cylinder 74 in one direction, and the gas in the air outlet pipe 741 can only flow to the connecting pipe 64 in one direction.

[0031] Specifically, the driving component 78 includes a driving seat 781, a driving shaft 782, a driving cam 783 and a driving motor 784. The driving seat 781 is installed at the bottom of the adjustment plate 72, the driving shaft 782 is rotatably installed on the driving seat 781, the driving cam 783 is installed on the driving shaft 782, and the bottom end of the driving cam 783 is in conflict with the top end of the driving wheel 771, the driving motor 784 is horizontally arranged on the outer wall of the driving seat 781, and the output shaft of the driving motor 784 is connected to the driving shaft 782; the driving motor 784 drives the driving shaft 782 and the driving cam 783 to rotate, and the driving cam 783 uses the driving wheel 771 to drive the driving rod 76 and the piston 75 to achieve reciprocating lifting, so that the piston 75 can extract air for sampling operation.

[0032] Specifically, a plurality of grooves 54 arranged at equal intervals are provided on the top of the placement platform 5 , and the plurality of grooves 54 are used to place a plurality of sampling tubes 51 ; the grooves 54 are placed in close contact with the outer wall of the sampling tube 51 .

[0033] Specifically, a limiting ring 66 is provided on the outer wall of the top end of the connecting pipe 64 to overlap the top of the lifting platform 61 ; the limiting ring 66 limits the connecting pipe 64 to prevent the connecting pipe 64 from falling from the lifting platform 61 .

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air sampling device, characterized in that: The invention comprises a bottom plate (1), a movable frame (2), a screw slide (3), a connecting plate (4), a placing table (5), a connecting component (6), a sampling component (7) and two guide rails (8), wherein the two guide rails (8) are symmetrically arranged on the top of the bottom plate (1), the movable frame (2) is slidably mounted on the two guide rails (8), the screw slide (3) is horizontally arranged on the top of the bottom plate (1), the connecting plate (4) is mounted on the movable end of the screw slide (3), and the connecting plate (4) is connected to the outer wall of the bottom end of the movable frame (2). The placement platform (5) is mounted on the top of the base plate (1); a plurality of sampling tubes (51) are arranged at equal intervals on the placement platform (5); a sealing cover (52) is screwed to the top of the sampling tube (51); a through hole (53) is provided on the top of the sealing cover (52); the connecting component (6) is mounted on the top of the base plate (1); the connecting component (6) is plugged into the through hole (53); the sampling component (7) is mounted on the top of the mobile frame (2); the sampling component (7) is plugged into the connecting component (6).

2. An air sampling device according to claim 1, characterized in that: The connecting component (6) comprises a lifting platform (61), four hydraulic push rods (62) and a plurality of connecting components (63). The four hydraulic push rods (62) are distributed in a rectangular shape on the top of the base plate (1). The lifting platform (61) is mounted on the output ends of the four hydraulic push rods (62). The plurality of connecting components (63) are arranged on the lifting platform (61) at equal intervals, and the bottom ends of the plurality of connecting components (63) are respectively plugged into the through holes (53) on the corresponding sealing cover (52). Each of the connecting components (63) comprises a connecting pipe (64) and a first solenoid valve (65). The connecting pipe (64) is vertically arranged on the lifting platform (61), and the bottom end of the connecting pipe (64) is plugged into the through hole (53). The first solenoid valve (65) is mounted on the connecting pipe (64).

3. An air sampling device according to claim 2, characterized in that: The sampling assembly (7) comprises a carrier (71), an adjustment plate (72), an electric push rod (73), a vacuum cylinder (74), a piston (75), a push rod (76), a push block (77), a push wheel (771), a spring (772), a driving component (78), two vertical rods (79) and two brackets (791). The carrier (71) is mounted on the top of the moving frame (2), the two vertical rods (79) are symmetrically arranged on the top of the moving frame (2), and the tops of the two vertical rods (79) are The end of the adjusting plate (72) is connected to the inner top end of the supporting frame (71), the adjusting plate (72) is slidably mounted on the two vertical rods (79), the electric push rod (73) is vertically arranged on the top of the supporting frame (71), and the output end of the electric push rod (73) is connected to the adjusting plate (72), the two brackets (791) are symmetrically arranged at the bottom of the adjusting plate (72), the air pump (74) is vertically arranged at the bottom ends of the two brackets (791), and the bottom of the air pump (74) is provided with an air outlet pipe connected to the inside thereof (741), the bottom end of the air outlet pipe (741) is plugged into the corresponding connecting pipe (64) in the connecting component (63), the piston (75) is slidably installed in the air pump (74), the push rod (76) is vertically arranged on the top of the piston (75), and the top end of the push rod (76) extends to the top of the air pump (74), the push block (77) is installed on the top of the push rod (76), the push wheel (771) is rotatably installed on the top of the push block (77), and the spring (77 2) is sleeved on the outside of the push rod (76), and the two ends of the spring (772) are respectively connected to the top of the vacuum cylinder (74) and the bottom of the push block (77), the driving component (78) is installed at the bottom of the adjustment plate (72), and the driving component (78) is used to drive the piston (75) to slide back and forth, and an air inlet pipe (742) connected to the interior of the vacuum cylinder (74) is provided on the outer wall of the bottom end of the vacuum cylinder (74), and a second solenoid valve (743) is provided on the air inlet pipe (742) and the air outlet pipe (741).

4. An air sampling device according to claim 3, characterized in that: The driving component (78) comprises a driving seat (781), a driving shaft (782), a driving cam (783) and a driving motor (784); the driving seat (781) is mounted on the bottom of the adjusting plate (72); the driving shaft (782) is rotatably mounted on the driving seat (781); the driving cam (783) is mounted on the driving shaft (782); the bottom end of the driving cam (783) abuts against the top end of the driving wheel (771); the driving motor (784) is horizontally arranged on the outer wall of the driving seat (781); and the output shaft of the driving motor (784) is connected to the driving shaft (782).

5. An air sampling device according to claim 1, characterized in that: The top of the placement platform (5) is provided with a plurality of grooves (54) arranged at equal intervals, and the plurality of grooves (54) are used to place a plurality of sampling tubes (51).

6. An air sampling device according to claim 2, characterized in that: A limiting ring (66) is provided on the outer wall of the top end of the connecting pipe (64) and is overlapped with the top of the lifting platform (61).

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