CN217561069U

CN217561069U - Particulate matter sampling device

Info

Publication number: CN217561069U
Application number: CN202221122154.4U
Authority: CN
Inventors: 沈益斌; 金崇君; 王强; 华勤磊; 罗伶燕
Original assignee: Zhejiang Qingsheng Testing Technology Co ltd
Current assignee: Zhejiang Qingsheng Testing Technology Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-10-11
Anticipated expiration: 2032-05-11

Abstract

The application provides a particulate matter sampling device belongs to particulate matter sampling technical field. This particulate matter sampling device includes base and elevating system, the base top is provided with bears the weight of the seat, bear the weight of the seat top and be fixed with the aspiration pump, the fixed collecting box that is provided with in base top, the collecting box rear end is provided with discharge valve, the aspiration pump output with the collecting box intercommunication, the inside activity of collecting box is provided with the filter membrane, the connecting rib set up in the filter membrane bottom, the connecting rib slide set up in inside the collecting box, the mounting groove set up in the collecting box inside wall, the inside rotation of mounting groove installs the lead screw, lead screw outer wall threaded connection have slide in the slider of mounting groove, the slider with the connecting rib is fixed mutually, the motor set up in the collecting box is outside, the motor with the lead screw transmission is connected, and this sampling device is convenient for adjust and remove the filter membrane.

Description

Particulate matter sampling device

Technical Field

The application relates to the technical field of particulate matter sampling, particularly, relate to a particulate matter sampling device.

Background

At present, in order to know the pollution degree of the atmosphere, the suspended particles in the atmosphere are required to be collected, and the collected suspended particle sample is collected on a filter membrane so as to be analyzed by various means, so that the concentration of the suspended particles and various chemical composition information contained in the suspended particles are obtained.

Current particulate matter sampling device adopts the air sample in the aspiration pump extraction environment usually, and on discharging the air sample of extraction to the inside filter membrane of collecting box again, the suspended particles thing is attached to on the filter membrane, and the inside filter membrane of current collecting box often is fixed setting, and inconvenient removal for the suspended particles thing on the filter membrane is difficult for stretching out the collecting box and detects. In addition, in the long-time use of filter membrane, easily adhere to more suspended particles on the filter membrane, need clear up the suspended particles on the filter membrane to avoid influencing subsequent suspended particles's sampling process, the above-mentioned process of the inconvenient better completion of current device often.

SUMMERY OF THE UTILITY MODEL

In order to remedy the above deficiencies, the present application provides a particulate sampling device that aims to ameliorate the above-mentioned problems.

The embodiment of the application provides a particulate matter sampling device, including base and elevating system, the base top is provided with bears the weight of the seat, it is fixed with the aspiration pump to bear the weight of the seat top, the fixed collecting box that is provided with in base top, the collecting box rear end is provided with discharge valve, there is the top cap collecting box top through bolt and nut movable mounting, the aspiration pump input is connected with the intake pipe, the aspiration pump output with the collecting box intercommunication, the inside activity of collecting box is provided with the filter membrane, elevating system includes connecting rib, mounting groove and motor, connecting rib set up in the filter membrane bottom, connecting rib slide set up in inside the collecting box, the mounting groove set up in the collecting box inside wall, the inside rotation of mounting groove installs the lead screw, lead screw outer wall threaded connection have slide in the slider of mounting groove, the slider with connecting rib is fixed mutually, the motor set up in the collecting box is outside, the motor with the lead screw transmission is connected.

In the above-mentioned realization in-process, start the aspiration pump, external air sample gets into the intake pipe, and inside the pressure of aspiration pump and get into the collecting box, because the gravity of particulate matter in the air, so that the particulate matter falls on the filter membrane, thereby accomplish the collection sampling process of particulate matter, if the particulate matter that needs to collect the filter membrane analyzes, need take out the filter membrane this moment, because there is the top cap at the collecting box top through bolt and nut movable mounting, so the rotating nut makes it break away from the bolt, the rebound top cap this moment, can accomplish the separation process of top cap and collecting box, because the inside rotation of mounting groove installs the lead screw, lead screw outer wall threaded connection has the slider that slides in the mounting groove, the motor is connected with screw drive, so the motor starts to drive the lead screw and rotates, according to the screw drive principle, the slider will carry out vertical migration, make the slider rebound, and then drive the filter membrane rebound of connecting the rib top, until the filter membrane removes the opening part of collecting box top, so that the particulate matter on the filter membrane carries out chemical analysis, thereby, so that atmospheric pollution degree is known.

In a specific implementation scheme, the motor output shaft penetrates through the collection box, one end of the motor output shaft extends into the installation groove, the motor output shaft is connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is fixedly sleeved on the screw rod.

In the implementation process, the output shaft of the motor rotates to drive the first bevel gear to rotate, and further drives the screw rod on the inner side of the second bevel gear to rotate.

In a specific embodiment, a bearing is arranged inside the collection box and outside the motor output shaft, and an outer ring of the motor output shaft is fixed with an inner ring of the bearing.

In the implementation process, the outer ring of the motor output shaft and the inner ring of the bearing are fixed, so that the stability of the motor output shaft in the rotating process in the collecting box is improved.

In a specific embodiment, the filter membrane is V-shaped, and the shape of the connecting ribs is matched with that of the filter membrane.

In the implementation process, the filter membrane is arranged in a V shape, so that more particles are attached to the top of the filter membrane.

In a specific embodiment, the inner side wall of the collecting box is fixedly provided with a telescopic rod, and the top of the telescopic rod is fixed with the bottom of the connecting rib.

In the implementation process, the telescopic rods are arranged at the positions, so that the filter membrane at the top of the connecting rib can only vertically move in the collecting box.

In a specific embodiment, the telescopic rod comprises a sleeve and an inner rod, and the sleeve is sleeved on the inner rod in a sliding manner.

In the implementation process, the sleeve is sleeved on the inner rod in a sliding manner, and the filter membrane moves to drive the sleeve to slide outside the inner rod.

In a specific embodiment, collecting box bottom intercommunication has row workbin, collecting box one side is provided with the air-blower, the air-blower output with arrange the inside intercommunication of workbin, row workbin one end intercommunication has row material pipe, arrange and be provided with the valve on the material pipe.

In the implementation process, the particulate matters with larger volume are positioned above the filter membrane, and the tiny particulate matters pass through the filter membrane to enter the discharge box, the air blower is started, so that the tiny particulate matters in the discharge box move towards the discharge pipe, and the valve on the discharge pipe is opened, so that the tiny particulate matters can be taken out.

In a specific embodiment, the air pump input end pass through the hose with the intake pipe intercommunication, bear seat one side and be provided with the extension board, the extension board top is rotated and is installed the carousel, the carousel top is fixed with rotatory cassette, the intake pipe rotates to be installed inside the rotatory cassette, the articulated electric putter that is provided with in carousel top, the electric putter output shaft with the intake pipe bottom is articulated.

At above-mentioned implementation in-process, because the intake pipe rotates to be installed inside rotatory cassette, the articulated electric putter that is provided with in carousel top, the electric putter output shaft is articulated with the intake pipe bottom, so start electric putter and make its output shaft stretch out and draw back, and then drive the intake pipe and rotate, so that the atmosphere of intake pipe extraction different positions, rotate the carousel and carry out angle modulation with the intake pipe that makes the carousel top, thereby the atmospheric scope of intake pipe extraction has been enlarged.

In a specific embodiment, the top of the extension plate is provided with a circular groove, the two ends of the bottom of the turntable are both fixed with round blocks, and the round blocks are respectively movably arranged on the two sides of the circular groove.

In the implementation process, the two round blocks are respectively movably arranged on two sides of the circular ring groove, so that the stability of the rotary table in the rotation process of the top of the extension plate is improved.

In a specific embodiment, a rotating hand is arranged below the extension plate, and one end of the rotating hand movably penetrates through the extension plate and is connected with the bottom of the rotating disc.

In the implementation process, the turnplate is driven to rotate by rotating the hand.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also derive other related drawings based on these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a particulate sampling apparatus provided in an embodiment of the present application;

FIG. 2 is a front cross-sectional view of a collection bin provided in an embodiment of the present application;

FIG. 3 is an enlarged view of FIG. 2 at A provided in accordance with an embodiment of the present application;

FIG. 4 is an enlarged view at B in FIG. 2 provided by an embodiment of the present application;

fig. 5 is a sectional view of the telescopic rod of fig. 2 according to an embodiment of the present application.

In the figure: 100-a base; 110-a carrier; 111-an extension plate; 1111-circular ring groove; 112-a turntable; 1121-round block; 113-a rotating cartridge; 114-an electric push rod; 115-hand turning; 120-a suction pump; 121-an air inlet pipe; 130-a collection box; 131-a top cover; 132-a filter membrane; 133-a telescoping rod; 1331-a cannula; 1332-inner rod; 134-a discharge box; 135-a blower; 136-a discharge pipe; 200-a lifting mechanism; 210-connecting ribs; 220-mounting grooves; 221-a screw rod; 222-a slider; 230-a motor; 231-a first bevel gear; 232-second bevel gear.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1-5, the present application provides a particulate sampling device, including a base 100 and a lifting mechanism 200, the top of the base 100 is provided with a bearing seat 110, the top of the bearing seat 110 is fixed with a suction pump 120, a collection box 130 is fixedly arranged above the base 100, the rear end of the collection box 130 is provided with a discharge valve, the top of the collection box 130 is movably provided with a top cover 131 through a bolt and a nut, the input end of the suction pump 120 is connected with an air inlet pipe 121, the output end of the suction pump 120 is communicated with the collection box 130, the interior of the collection box 130 is movably provided with a filter membrane 132, the lifting mechanism 200 includes a connecting rib 210, a mounting groove 220 and a motor 230, the connecting rib 210 is arranged at the bottom of the filter membrane 132, the connecting rib 210 is slidably arranged inside the collection box 130, the mounting groove 220 is arranged on the inner side wall of the collection box 130, the screw 221 is rotatably arranged inside the mounting groove 220, the outer wall of the screw 221 is threadedly connected with a sliding block 222 in the mounting groove 220, the sliding block 222 is fixed with the connecting rib 210, the motor 230 is arranged outside the collection box 130, and the motor 230 is in transmission connection with the screw 221.

In some specific embodiments, the output shaft of the motor 230 penetrates through the collection box 130, and one end of the output shaft extends into the installation groove 220, the output shaft of the motor 230 is connected with a first bevel gear 231, the first bevel gear 231 is connected with a second bevel gear 232 in a meshing manner, the second bevel gear 232 is fixedly sleeved on the screw rod 221, the output shaft of the motor 230 rotates to drive the first bevel gear 231 to rotate, and further, the screw rod 221 inside the second bevel gear 232 is driven to rotate.

In some specific embodiments, a bearing is disposed inside the collection box 130 and outside the output shaft of the motor 230, an outer ring of the output shaft of the motor 230 is fixed to an inner ring of the bearing, and the outer ring of the output shaft of the motor 230 is fixed to the inner ring of the bearing, so as to improve the stability of the rotation process of the output shaft of the motor 230 inside the collection box 130.

In some embodiments, the filter membrane 132 is V-shaped, and the connecting ribs 210 are shaped to match the shape of the filter membrane 132, so that more particles are attached to the top of the filter membrane 132 by the V-shaped configuration of the filter membrane 132.

In some specific embodiments, the telescopic rod 133 is fixedly disposed on the inner sidewall of the collection box 130, the top of the telescopic rod 133 is fixed to the bottom of the connection rib 210, and the position of the telescopic rod 133 is set such that the filter membrane 132 at the top of the connection rib 210 can only move vertically inside the collection box 130.

In some specific embodiments, the telescopic rod 133 comprises a sleeve 1331 and an inner rod 1332, the sleeve 1331 is slidably sleeved on the inner rod 1332, and the filter 132 is moved to drive the sleeve 1331 to slide outside the inner rod 1332 by the arrangement of the sleeve 1331 slidably sleeved on the inner rod 1332.

In some specific embodiments, the bottom of the collection box 130 is communicated with a discharge box 134, one side of the collection box 130 is provided with a blower 135, the output end of the blower 135 is communicated with the inside of the discharge box 134, one end of the discharge box 134 is communicated with a discharge pipe 136, a valve is arranged on the discharge pipe 136, particles with larger volume are positioned above the filter membrane 132, and tiny particles pass through the filter membrane 132 and enter the discharge box 134, the blower 135 is started, so that the tiny particles in the discharge box 134 move towards the discharge pipe 136, and the valve on the discharge pipe 136 is opened, so as to take out the tiny particles.

In some specific embodiments, an input end of the air pump 120 is communicated with the air inlet pipe 121 through a hose, an extension plate 111 is arranged on one side of the bearing seat 110, a rotary table 112 is rotatably installed on the top of the extension plate 111, a rotary clamping seat 113 is fixed on the top of the rotary table 112, the air inlet pipe 121 is rotatably installed inside the rotary clamping seat 113, an electric push rod 114 is hinged on the top of the rotary table 112, an output shaft of the electric push rod 114 is hinged with the bottom of the air inlet pipe 121, because the air inlet pipe 121 is rotatably installed inside the rotary clamping seat 113, the electric push rod 114 is hinged on the top of the rotary table 112, and the output shaft of the electric push rod 114 is hinged with the bottom of the air inlet pipe 121, the electric push rod 114 is started to extend and retract, so as to drive the air inlet pipe 121 to rotate, the air inlet pipe 121 to extract atmospheric air at different positions, the rotary table 112 is rotated to adjust the angle of the air inlet pipe 121 above the rotary table 112, and thus the range of extracting atmospheric air of the air inlet pipe 121 is expanded.

In some specific embodiments, the top of the extension plate 111 is provided with an annular groove 1111, two ends of the bottom of the turntable 112 are both fixed with round blocks 1121, the two round blocks 1121 are respectively movably disposed at two sides of the annular groove 1111, and the two round blocks 1121 are respectively movably disposed at two sides of the annular groove 1111, so as to improve the stability of the turntable 112 in the rotating process at the top of the extension plate 111.

In some specific embodiments, a rotating hand 115 is disposed below the extension plate 111, one end of the rotating hand 115 movably penetrates through the extension plate 111 and is connected to the bottom of the rotating disc 112, and the rotating hand 115 is used to drive the rotating disc 112 to rotate.

The working principle of the particulate matter sampling device is as follows: starting the air pump 120, the external air sample enters the air inlet pipe 121, and enters the collection box 130 through the pressure of the air pump 120, because of the gravity of the particulate matter in the air, so that the particulate matter falls on the filter membrane 132, thereby completing the collection and sampling process of the particulate matter, if the particulate matter collected by the filter membrane 132 needs to be analyzed, at this time, the filter membrane 132 needs to be taken out, because the top of the collection box 130 is movably provided with the top cover 131 through bolts and nuts, the nuts are rotated to separate the top cover 131 from the bolts, at this time, the top cover 131 can be separated from the collection box 130, because the installation groove 220 is internally rotatably provided with the lead screw 221, the outer wall of the lead screw 221 is in threaded connection with the sliding block 222 sliding in the installation groove 220, the motor 230 is in transmission connection with the lead screw 221, so that the motor 230 is started to drive the lead screw 221 to rotate, according to the principle of threaded transmission, the sliding block 222 is vertically moved, so that the sliding block 222 is moved upwards, thereby driving the filter membrane 132 at the top of the connecting bar 210 to move upwards, until the filter membrane 132 moves to the opening at the top of the collection box 130, so as to perform chemical analysis on the particulate matter on the filter membrane 132, thereby knowing the atmospheric pollution degree.

It should be noted that the specific model specifications of the electric push rod 114, the air pump 120, the filter membrane 132, the blower 135 and the motor 230 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.

The power supply and the principle of the electric push rod 114, the air pump 120, the blower 135 and the motor 230 are clear to those skilled in the art and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A particulate matter sampling device, characterized by comprising

The air suction device comprises a base (100), wherein a bearing seat (110) is arranged at the top of the base (100), an air suction pump (120) is fixed at the top of the bearing seat (110), a collection box (130) is fixedly arranged above the base (100), an exhaust valve is arranged at the rear end of the collection box (130), a top cover (131) is movably mounted at the top of the collection box (130) through bolts and nuts, an air inlet pipe (121) is connected to the input end of the air suction pump (120), the output end of the air suction pump (120) is communicated with the collection box (130), and a filter membrane (132) is movably arranged in the collection box (130);

the lifting mechanism (200) comprises connecting ribs (210), a mounting groove (220) and a motor (230), the connecting ribs (210) are arranged at the bottom of the filter membrane (132), the connecting ribs (210) are arranged inside the collecting box (130) in a sliding mode, the mounting groove (220) is arranged on the inner side wall of the collecting box (130), a screw rod (221) is arranged inside the mounting groove (220) in a rotating mode, a sliding block (222) sliding in the mounting groove (220) is connected to the outer wall of the screw rod (221) in a threaded mode, the sliding block (222) is fixed with the connecting ribs (210), the motor (230) is arranged outside the collecting box (130), and the motor (230) is in transmission connection with the screw rod (221).

2. The particulate sampling device according to claim 1, wherein an output shaft of the motor (230) penetrates through the collection box (130) and one end of the output shaft extends into the installation groove (220), a first bevel gear (231) is connected to the output shaft of the motor (230), a second bevel gear (232) is meshed and connected to the first bevel gear (231), and the second bevel gear (232) is fixedly sleeved on the screw rod (221).

3. The particulate sampling device of claim 2, wherein a bearing is arranged inside the collection box (130) and outside the output shaft of the motor (230), and an outer ring of the output shaft of the motor (230) is fixed with an inner ring of the bearing.

4. The particulate sampling device of claim 1, wherein the filter membrane (132) is V-shaped, and the connecting ribs (210) are shaped to conform to the shape of the filter membrane (132).

5. The particulate sampling device of claim 4, wherein the collecting box (130) is provided with a telescopic rod (133) on the inner side wall, and the top of the telescopic rod (133) is fixed to the bottom of the connecting rib (210).

6. The particulate sampling device of claim 5, wherein the telescoping rod (133) comprises a sleeve (1331) and an inner rod (1332), and the sleeve (1331) is slidably sleeved on the inner rod (1332).

7. The particulate matter sampling device as claimed in claim 1, wherein a discharge box (134) is communicated with the bottom of the collection box (130), a blower (135) is arranged on one side of the collection box (130), the output end of the blower (135) is communicated with the interior of the discharge box (134), a discharge pipe (136) is communicated with one end of the discharge box (134), and a valve is arranged on the discharge pipe (136).

8. The particulate matter sampling device according to claim 1, wherein an input end of the suction pump (120) is communicated with the air inlet pipe (121) through a hose, an extension plate (111) is arranged on one side of the bearing seat (110), a rotary table (112) is rotatably mounted on the top of the extension plate (111), a rotary clamping seat (113) is fixed on the top of the rotary table (112), the air inlet pipe (121) is rotatably mounted inside the rotary clamping seat (113), an electric push rod (114) is hinged to the top of the rotary table (112), and an output shaft of the electric push rod (114) is hinged to the bottom of the air inlet pipe (121).

9. The particulate matter sampling device of claim 8, characterized in that an annular groove (1111) is formed at the top of the extension plate (111), round blocks (1121) are fixed at both ends of the bottom of the rotary disc (112), and the two round blocks (1121) are movably arranged at both sides of the annular groove (1111) respectively.

10. The particulate sampling device of claim 9, wherein a rotating hand (115) is disposed below the extension plate (111), and one end of the rotating hand (115) movably penetrates through the extension plate (111) and is connected to the bottom of the rotary disc (112).