CN212275160U

CN212275160U - Purification device scanning leak detection system

Info

Publication number: CN212275160U
Application number: CN202021483428.3U
Authority: CN
Inventors: 王建峰; 王贺省; 王辉; 卢岩; 曾心耀; 彭蕾
Original assignee: Henan Hejing Cleaning Technology Co ltd
Current assignee: Henan Hejing Cleaning Technology Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-01-01
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a purifier scanning leak hunting system relates to the gas purification field. The system comprises a bent frame, a transmission assembly arranged on the back of the bent frame, a scanning sampling piece connected to the transmission assembly, and a scanning display device communicated with the scanning sampling piece through a test tube; the scanning sampling piece is a cavity structure with a triangular clamping cavity, which is formed by sealing two side ends of two identical triangular plates arranged in parallel, the triangular plates are obliquely crossed with the plane where the bent frame exits, a vertical partition plate arranged in a parallelogram shape is arranged in the triangular clamping cavity, the side surface of an opening end of the triangular clamping cavity is used as a sampling piece collecting port, the sampling piece collecting port is parallel to the plane where the bent frame exits, and a sampling piece outlet is formed in the intersection of the side surfaces of two closed ends of the triangular clamping cavity. The utility model discloses can carry out even continuous comprehensive collection and sampling to the gas after the filter equipment purifies, improve the sample precision greatly, accurate real time monitoring environmental quality, the commonality is strong, application scope is wide.

Description

Purification device scanning leak detection system

Technical Field

The utility model relates to a biological safety purification technical field that airs exhaust is the online scanning leak hunting system who uses with biological safety purifier that airs exhaust is supporting, and the filter leak source position is judged to the filtration efficiency of aerosol to the purifier that airs exhaust of mainly used inspection biological safety.

Background

Because the pharmaceutical industry and biological virus laboratories have particularity on environmental requirements, a biosafety purification device needs to be installed to guarantee the surrounding environment. Usually, a scanning and sampling system of the purifying device for scanning and sampling the purified gas is also required to be installed at the rear end of the purifying device in a matching manner, so as to monitor the environmental quality in real time. Some trapezoidal sampling boards that adopt a plurality of end to end of current patent all set up tubaeform sample inner chamber in every sampling board, have discontinuity, inhomogeneous problem in the aspect of the sample is collected, and then lead to certain error to appear in the testing result. The traditional scanning and sampling system also performs scanning and sampling through chain transmission, but the scanning and sampling through the chain transmission has the defects of complex mechanism, large space requirement and high cost.

Disclosure of Invention

The utility model aims at providing a purifier scanning leak hunting system just to the weak point that exists among the above-mentioned prior art. The utility model discloses an improve the structure of scanning sampling piece, can carry out even continuous comprehensive collection and sampling to the gas after the filter equipment purifies, improved the sample precision greatly-guarantee promptly and get into the precision of the air current sample of test tube, just so guaranteed follow-up scanning display device measured data and display data's accuracy, and then accurate real time monitoring environmental quality. In addition, the utility model discloses a commonality and application scope have been enlarged through the series of apolegamy bent of design.

The purpose of the utility model can be realized by the following technical measures:

the utility model relates to a scanning leakage detection system of a purifying device, which comprises a bent frame with a rectangular frame structure (the bent frame is a mounting base of the utility model and is used as a connecting part with the outlet of a filter, the utility model can be matched with a plurality of bent frames 1 which have different outer edge sizes and are matched with different purifying device specifications for matching, the bent frame which has the outer edge size and is matched with the corresponding purifying device specifications can be flexibly adjusted only by changing the width of a cross beam and a vertical beam which are used by the splicing bent frame, thereby expanding the application range of the utility model, the bent frame outlet breadth of the matched bent frame is the same, namely, the range of scanning and sampling of a sampling piece collecting port is not changed, thus, the scanning sampling piece, a transmission component, a scanning display device and a test tube can be used as universal pieces, thereby greatly improving the universality of the utility model), a transmission component which is arranged at the back of the bent frame (in order not to influence the gas sampling of the sampling piece collecting port), the scanning and sampling device comprises a scanning and sampling piece (gas at the outlet of the bent frame is continuously collected and sampled in the sliding process) which is connected to a transmission assembly and used for sliding scanning the outlet of the bent frame, and a scanning and displaying device (capable of accurately and visually displaying data information of impurity particles contained in an airflow sample in a testing tube and further monitoring the environmental quality in real time through data) which is communicated with the scanning and sampling piece through the testing tube; the scanning sampling piece is a cavity structure with a triangular clamping cavity which is formed by sealing two side ends of two identical triangular plates which are arranged in parallel, the planes of the triangular plates and the bent outlet are obliquely crossed (the flow rate of gas in the triangular clamping cavity is reduced, the gas flow sample is further ensured to uniformly and stably flow out from the sampling piece outlet), the height of the sampling piece collecting port is matched with the width of the bent outlet (the uniform, continuous and comprehensive collection of the gas at the bent outlet is facilitated), and vertical partition plates which are distributed in a parallelogram shape are arranged in the triangular clamping cavity (the gas flow sample collected by the sampling piece collecting port enters the triangular clamping cavity and is firstly shunted and then converged by the vertical partition plates distributed in the parallelogram shape, so that the gas flow sample can uniformly and stably flow out from the sampling piece outlet and then enters the testing pipe, and the sampling accuracy of the sampling piece outlet, namely the accuracy of the gas flow sample entering the testing pipe is ensured, thus, the accuracy of measuring data and displaying data of a subsequent scanning display device is ensured, and the environmental quality is accurately monitored in real time, the side surface of the open end of the triangular clamping cavity is used as a sampling piece collecting port which is parallel to the plane of the bent frame outlet and the height of the sampling piece collecting port is matched with the width of the bent frame outlet (the sampling piece collecting port is an open end side surface and is parallel to the plane of the bent frame outlet, the gas at the bent frame outlet can be uniformly, continuously and comprehensively collected in the sliding process, the sampling accuracy of the sampling piece collecting port is improved), the sampling piece outlet is formed at the intersection of the two closed end side surfaces of the triangular clamping cavity, a connecting plate is arranged on the outer surface of the triangular plate and at the edge of the sampling piece outlet (the connecting plate is matched and connected with a mounting plate in a transmission assembly to fix a scanning sampling piece on a screw block, translating the scan sample with the screw relative to the screw).

The transmission component of the utility model comprises a transmission bracket (the transmission bracket is the installation base of the transmission component), a vertical plate I and a vertical plate II which are positioned at two ends, a screw rod which is arranged in the groove cavity of the U-shaped groove plate, a servo motor which is connected at the input end of the screw rod, a screw block which is sleeved on the screw rod and combined in a screw thread way, a mounting plate which is fixed on the top surface of the screw block and connected with a scanning sampling piece in a bolt way (the mounting plate can be flexibly designed according to the shape and the installation angle of the scanning sampling piece and is matched and connected with a connecting plate in the scanning sampling piece when in installation), a baffle which is arranged at the end of the transmission bracket and a travel switch which is arranged on the baffle (the servo motor drives the screw rod to rotate, the screw rod rotates and drives the screw block to transversely slide relative to the screw rod, the mounting plate and the scanning sampling piece are transversely slide while the screw block slides, and then the gas at the outlet of the bent frame is scanned and sampled. The travel switch may prevent a collision).

The height of the vertical clapboard of the utility model is matched with the height of the triangular clamping cavity (the vertical clapboard has the function of shunting gas and simultaneously plays the function of a supporting rib-supporting between the inner surfaces of two triangular plates).

The utility model discloses in the length of framed bent export be no greater than the length of purifier export, the width of framed bent export be no greater than the width of purifier export (guarantee the breadth of framed bent export be less than or equal to the breadth of purifier export, guaranteed that the scanning sampling range of sample collection mouth is less than or equal to the breadth of purifier export promptly, do benefit to collecting even air current sample, simultaneously, the utility model discloses simultaneously, can also make the framed bent export breadth of a plurality of optional framed bent of putting up the same-the scope that sample collection mouth carries out scanning sampling is unchangeable, scanning sampling piece, drive assembly, scanning display device, test tube all can be as the commonality like this, have improved the utility model's commonality greatly; the utility model discloses can be according to the change of purifier exit end casing size, produce the framed bent that not only is convenient for link to each other with purifier exit end casing, does not change framed bent export breadth again promptly only need change the width of changing the used crossbeam of spelling framed bent and erecting the roof beam, just can adjust the framed bent that outer edge size and corresponding the supporting use of purifier specification in a flexible way, enlarged the application scope of the utility model.

The utility model discloses in the entrance point and the sample piece export of test tube are linked together, and the exit end and the scanning display device of test tube are linked together (collect the air current sample that the sample piece exported and transmit scanning display device through the test tube and measure and data display).

The utility model discloses in the framed bent is by crossbeam and perpendicular roof beam amalgamation rectangle frame structure (the utility model discloses can form a complete set design a plurality of different outer edge size with the supporting framed bent that uses of different purifier specifications with the selective matching, only change the width of changing the used crossbeam of the used framed bent of assembly and erecting the roof beam, just can adjust out the framed bent that outer edge size and corresponding the supporting use of purifier specification in a flexible way, enlarged the utility model discloses an application scope, the framed bent export breadth of the framed bent that can supply the selective matching is the same-the scope that sampling spare collection mouth carries out the scanning sample is unchangeable, scanning sampling spare, drive assembly, scanning display device, test tube all can regard as the commonality like this, have improved greatly the utility model discloses a commonality.

The utility model discloses in scanning display device is optical scanner (can accurately show the data information that the air current sample contained the foreign particles in the test tube directly perceivedly, and then through data real time monitoring environmental quality).

The utility model discloses in scanning display device is particle counter (can accurately show the data information that the air current sample contained the foreign particles in the test tube directly perceivedly, and then through data real time monitoring environmental quality).

The design principle of the utility model is as follows:

the utility model discloses an improve the structure of scanning sampling piece, can carry out even continuous comprehensive collection and sampling to the gas after the filter equipment purifies, improved the sample precision greatly-guarantee promptly and get into the precision of the air current sample of test tube, just so guaranteed follow-up scanning display device measured data and display data's accuracy, and then accurate real time monitoring environmental quality. In addition, the utility model discloses a commonality and application scope have been enlarged through the series of apolegamy bent of design.

More specifically, the utility model designs a scanning sampling piece with a triangular clamping cavity, and takes an open end side as a sampling piece collecting port, so that the scanning sampling piece can perform sliding type scanning along a bent outlet under the driving of a transmission assembly, and the gas purified by a filtering device is uniformly, continuously and comprehensively collected in the sliding process, thereby improving the sampling precision of the sampling piece collecting port; the utility model discloses still press from both sides the intracavity at triangle-shaped and be the upright baffle that parallelogram arranged, the air current sample that collects by the sample collection mouth gets into triangle-shaped and presss from both sides the chamber, the upright baffle of arranging by parallelogram is shunted earlier, converge again, air current sample can enter the test tube after the export of sample flows evenly steadily like this, the sample precision of sample export has been improved-the precision of the air current sample who gets into the test tube is guaranteed promptly, just so guarantee follow-up scanning display device measured data and display data's accuracy, and then accurately real time monitoring environmental quality. In addition, the utility model designs a plurality of rectangular frame structure bent frames with different specifications for selection between the scanning sampling piece and the filter for matching connection, the bent frame outlet breadth of the bent frames for matching is the same, namely the scanning sampling range of the sampling piece collecting port is unchanged, thus the scanning sampling piece, the transmission component, the scanning display device and the testing tube can be used as universal pieces, and the universality of the utility model is greatly improved; simultaneously, only need the width of the used crossbeam of change spelling framed bent and perpendicular roof beam, just can adjust the framed bent that the outer edge size of going out and supporting the use of corresponding purifier specification in a flexible way, enlarged the utility model discloses an application scope.

The utility model has the advantages of as follows:

Drawings

Fig. 1 is a schematic perspective view of the present invention when viewed from the front.

Fig. 2 is a schematic perspective view of the present invention from the back.

Fig. 3 is a schematic perspective view of a middle bent frame according to the present invention.

Fig. 4 is a schematic perspective view of a middle scanning sampling piece according to the present invention.

Fig. 5 is a schematic diagram of the inner cavity structure of the middle scanning sampling member of the present invention.

Fig. 6 is a front sectional view (i.e., a sectional view a-a in fig. 7) of the drive assembly of the present invention.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a perspective view of a mounting plate in the drive assembly.

The sequence numbers in the figures illustrate: 1. 1-1 parts of bent, 1-2 parts of bent outlet, 1-3 parts of cross beam and vertical beam; 2. 2-1 parts of a scanning sampling piece, 2-2 parts of a triangular plate, 2-2 parts of a triangular clamping cavity, 2-2-1 parts of a sampling piece collecting port, 2-2-2 parts of a sampling piece outlet, 2-2-3 parts of a vertical partition plate, 2-2-4 parts of a connecting plate; 3. the device comprises a transmission assembly, 3-1, a transmission support, 3-1-1, a U-shaped groove plate, 3-1-2, vertical plates I, 3-1-3, vertical plates II, 3-2, a servo motor, 3-3, a screw rod, 3-4, a screw block, 3-5, a mounting plate, 3-6, a baffle, 3-7 and a travel switch; 4. scanning display device, 5, test tube.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in figures 1-8, the scanning leakage detection system of the purification device of the utility model comprises a bent frame 1 (the bent frame 1 is the installation foundation of the utility model, as the connection component of the purification device and the filter outlet, the utility model can be matched with a plurality of bent frames 1 with different outer edge sizes and different purification device specifications for matching, only the widths of the cross beams 1-2 and the vertical beams 1-3 used by the assembled bent frame 1 are changed, the bent frame 1 used by matching the outer edge sizes and the corresponding purification device specifications can be flexibly adjusted, the application range of the purification device is expanded, the bent frame outlet 1-1 of the matched bent frame has the same breadth, namely the scanning sampling range of the sampling piece collecting port 2-2-1 is unchanged, thus the sampling piece 2 and the transmission component 3 are scanned, and the sampling piece 2 and the transmission component 3 are matched with each other, The scanning display device 4 and the test tube 5 can be used as universal parts, so that the universality of the utility model is greatly improved), a transmission component 3 (in order to not influence the gas sampling of the sampling part collecting port 2-2-1) arranged at the back of the bent frame 1, a scanning sampling part 2 (which continuously collects and samples the gas at the bent frame outlet 1-1 in the sliding process) connected to the transmission component and performs sliding type scanning on the bent frame outlet 1-1, and a scanning display device 4 (which can accurately and visually display the data information of impurity particles contained in the airflow sample in the test tube 5 and further monitor the environmental quality in real time through the data) communicated with the scanning sampling part through the test tube 5; the scanning sampling part 2 is a cavity structure with a triangular clamping cavity 2-2 which is formed by sealing two same triangular plates 2-1 arranged in parallel and then enclosing the two sides together, the triangular plates 2-1 are obliquely crossed with the plane of the bent frame outlet (the gas flow rate in the triangular clamping cavity 2-2 is reduced, the gas flow sample is further ensured to uniformly and stably flow out of the sampling part outlet 2-2-2), the height of the sampling part collecting port 2-2-1 is matched with the width of the bent frame outlet 1-1 (the uniform, continuous and comprehensive collection of the gas at the bent frame outlet 1-1 is facilitated), vertical partition plates 2-2-3 arranged in a parallelogram shape are arranged in the triangular clamping cavity 2-2 (the gas flow sample collected by the sampling part collecting port 2-2-1 enters the triangular clamping cavity 2-2, the vertical partition plates 2-2-3 arranged in a parallelogram firstly flow divide and then converge, so that an airflow sample can uniformly and stably flow out of the sampling piece outlet 2-2-2 and then enter the testing tube 5, the sampling precision of the sampling piece outlet is improved, namely the precision of the airflow sample entering the testing tube 5 is ensured, the accuracy of the measurement data and the display data of a subsequent scanning display device 4 is ensured, and the environment quality is accurately monitored in real time, the side surface of the open end of the triangular clamping cavity 2-2 is used as a sampling piece collecting port 2-2-1, the sampling piece collecting port 2-2-1 is parallel to the plane of the bent outlet 1-1, and the height of the sampling piece collecting port 2-2-1 is matched with the width of the bent outlet 1-1 (the sampling piece collecting port 2-2-1 is an open end side surface, The gas at the bent frame outlet 1-1 can be uniformly, continuously and comprehensively collected in the sliding process, so that the sampling accuracy of a sampling part collecting port is improved, the sampling part outlet 2-2-2 is formed at the intersection of the two closed end side surfaces of the triangular clamping cavity 2-2, and a connecting plate 2-2-4 (matched and connected with a mounting plate 3-5 in the transmission assembly 3 and used for fixing the scanning sampling part 2 to the screw block 3-4 so that the scanning sampling part 2 can move horizontally relative to the screw rod 3-3 along with the screw block 3-4) is arranged on the outer surface of the triangular plate 2-1 and positioned at the edge of the sampling part outlet 2-2-2.

The transmission component 3 in the utility model comprises a transmission support 3-1 consisting of a U-shaped trough plate 3-1-1, a vertical plate I3-1-2 and a vertical plate II 3-1-3 which are positioned at two ends (the transmission support 3-1 is the installation base of the transmission component 3, the vertical plate I3-1-2 and the vertical plate II 3-1-3 are fixed on two vertical beams 1-3 of a bent frame 1), a screw rod 3-3 arranged in the trough cavity of the U-shaped trough plate, a servo motor 3-2 connected at the input end of the screw rod, a screw block 3-4 sleeved on the screw rod and combined in a thread way, a mounting plate 3-5 fixed on the top surface of the screw block and connected with a scanning sampling piece 2 in a bolt way (the mounting plate 3-5 can be flexibly designed according to the shape and the installation angle of the scanning sampling piece 2, when the gas sampling device is installed, the gas sampling device is connected with a connecting plate 2-2-4 in a scanning sampling piece 2 in a matching mode), a baffle 3-6 arranged at the end of a transmission support and a travel switch 3-7 arranged on the baffle (a servo motor 3-2 drives a screw rod 3-3 to rotate, the screw rod 3-3 rotates and drives a screw block 3-4 to transversely slide relative to the screw rod, the screw block 3-4 slides and drives a mounting plate 3-5 and the scanning sampling piece 2 to transversely slide, and then scanning sampling is carried out on gas at a bent outlet 1-1. The travel switches 3-7 may prevent a collision).

In the utility model, the height of the vertical clapboard 2-3-3 is matched with the height of the triangular clamping cavity 2-2 (the vertical clapboard 2-2-3 has the function of shunting gas and simultaneously plays the role of a supporting rib-supported between the inner surfaces of the two triangular plates 2-1).

The utility model discloses in the length of framed bent export 1-1 is not more than the length of purifier export, the width of framed bent export 1-1 is not more than the width of purifier export (guarantee the breadth of framed bent export 1-1 is less than or equal to the breadth of purifier export, guarantee that the scanning sampling amplitude of sampling piece collection mouth 2-2-1 is less than or equal to the breadth of purifier export, do benefit to the collection of even air current sample, simultaneously, the utility model discloses simultaneously, the framed bent export 1-1 breadth that can also make a plurality of framed bent of selecting for matches-the scope that sampling piece collection mouth 2-2-1 carries out the scanning sampling is unchangeable, scanning sampling piece 2 like this, drive assembly 3, scanning display device 4, test tube 5 all can be as the commonality, greatly improved the utility model's commonality; the utility model discloses can produce the framed bent 1 that not only is convenient for link to each other with purifier exit end casing, but also does not change framed bent export 1-1 breadth according to the change of purifier exit end casing size in a flexible way (only need change the width of the crossbeam 1-2 that assembles framed bent 1-3 that assembles framed bent 1 used and erect roof beam 1-2 promptly, just can adjust the framed bent 1 that outer edge size and corresponding purifier specification supporting used in a flexible way, enlarged the application scope of the utility model discloses an outer edge length of framed bent 1 is not less than the length of purifier export, and the outer edge width of framed bent 1 is not less than the width of purifier export (guarantee that crossbeam 1-2, erect roof beam 1 in framed bent 1 link to each other).

The utility model discloses in the entrance point of test tube 5 is linked together with sample piece export 2-2-2, and the exit end of test tube 5 is linked together with scanning display device 4 (the air current sample that collects sample piece export 2-2-2 transmits to scanning display device 4 through test tube 5 and measures and data display).

The utility model discloses in framed bent 1 is by crossbeam 1-2 and perpendicular roof beam 1-3 amalgamation rectangle frame construction (the utility model discloses can form a plurality of different outer edge size of supporting design with the framed bent 1 that different purifier specifications used for the apolegamy, only change the width of crossbeam 1-2 and perpendicular roof beam 1-3 that the ganged bent 1 used, just can adjust the framed bent 1 that outer edge size and corresponding purifier specification supporting used in a flexible way, enlarged the application scope of the utility model, the framed bent export 1-1 breadth of framed bent that can supply the apolegamy is the same-the scope that sampling piece collection mouth 2-2-1 carried out the scanning sample is unchangeable, like this scanning sampling piece 2, drive assembly 3, scanning display device 4, test tube 5 all can regard as the commonality, improved the utility model's commonality greatly.

The utility model discloses in scanning display device 4 is optical scanner (can accurately show the data information that the air current sample contained the foreign particles among test tube 5 directly perceivedly, and then through data real time monitoring environmental quality).

The utility model discloses in scanning display device 4 is the particle counter (can accurately show the data information that the air current sample contained the foreign particles in test tube 5 directly perceivedly, and then through data real time monitoring environmental quality).

The utility model discloses a concrete in service behavior as follows:

firstly, mounting a scanning sampling piece 2 on a mounting plate 3-5 of a transmission assembly 3 according to the structural description, communicating the inlet end of a testing tube 5 with an outlet 2-2-2 of the sampling piece, and communicating the outlet end of the testing tube 5 with a scanning display device 4; then, selecting a bent frame 1 with matched outer edge size according to the specification of the outlet end of the purification device; then, the vertical plates I3-1-2 and the vertical plates II 3-1-3 at the two ends of the transmission assembly 3 are respectively and fixedly connected to the two vertical beams 1-3 of the bent frame 1; then, the bent frame 1 is installed and connected at the outlet end of the purification device in a coaxial mode, namely the bent frame outlet 1-1 and the purification device outlet are arranged in a coaxial mode; and finally, after the exhaust control valve of the purification device is opened, the servo motor 3-2 in the transmission assembly 3 and the scanning display device 4 are started to normally work: the servo motor 3-2 drives the screw rod 3-3 to rotate, the screw rod 3-3 rotates and drives the screw block 3-4 to transversely slide relative to the screw rod, the screw block 3-4 slides and drives the mounting plate 3-5 and the scanning sampling piece 2 to transversely slide, and the side face of the open end is used as the sampling piece collecting port 2-2-1, so that the sampling piece collecting port 2-2-1 can uniformly, continuously and comprehensively collect gas purified by the filtering device in the sliding process, and the sampling precision of the sampling piece collecting port is improved; the airflow sample collected by the sampling part collecting port 2-2-1 enters the triangular clamping cavity 2-2 and is firstly shunted and then converged by the vertical partition plates 2-2-3 arranged in a parallelogram mode, so that the airflow sample can uniformly and stably flow out of the sampling part outlet 2-2-2 and then enters the testing tube 5, the sampling precision of the sampling part outlet is improved, namely the precision of the airflow sample entering the testing tube 5 is ensured, the accuracy of the measurement data and the display data of the subsequent scanning display device 4 is ensured, and the environmental quality is accurately monitored in real time.

Claims

1. The utility model provides a purifier scanning leak hunting system which characterized in that: the system comprises a bent frame (1) with a rectangular frame structure, a transmission assembly (3) arranged on the back of the bent frame (1), a scanning sampling piece (2) which is connected to the transmission assembly and carries out sliding type scanning on a bent frame outlet (1-1), and a scanning display device (4) which is communicated with the scanning sampling piece through a test tube (5); the scanning sampling piece (2) is of a cavity structure with a triangular clamping cavity (2-2) enclosed by two identical triangular plates (2-1) arranged in parallel after two sealed ends, the triangular plates (2-1) are obliquely crossed with the plane of a bent frame outlet, vertical partition plates (2-2-3) arranged in a parallelogram shape are arranged in the triangular clamping cavity (2-2), the side face of the open end of the triangular clamping cavity (2-2) is used as a sampling piece collecting port (2-2-1), the sampling piece collecting port (2-2-1) is parallel to the plane of the bent frame outlet (1-1), the height of the sampling piece collecting port (2-2-1) is matched with the width of the bent frame outlet (1-1), the sampling piece outlet (2-2-2) is arranged at the intersection of the two sealed end side faces of the triangular clamping cavity (2-2), a connecting plate (2-2-4) is arranged on the outer surface of the triangular plate (2-1) and at the edge of the sampling part outlet (2-2-2).

2. A purge scanning leak detection system according to claim 1, wherein: the transmission assembly (3) comprises a transmission support (3-1) consisting of a U-shaped groove plate (3-1-1), a vertical plate I (3-1-2) and a vertical plate II (3-1-3) which are positioned at two ends, a screw rod (3-3) arranged in a groove cavity of the U-shaped groove plate, a servo motor (3-2) connected to the input end of the screw rod, a screw block (3-4) sleeved on the screw rod and combined in a thread mode, a mounting plate (3-5) fixed on the top surface of the screw block and connected with a scanning sampling piece (2) in a bolt mode, a baffle (3-6) arranged at the end of the transmission support and a travel switch (3-7) arranged on the baffle.

3. A purge scanning leak detection system according to claim 1, wherein: the height of the vertical partition plate (2-2-3) is matched with that of the triangular clamping cavity (2-2).

4. A purge scanning leak detection system according to claim 1, wherein: the length of the bent frame outlet (1-1) is not more than that of the purifying device outlet, and the width of the bent frame outlet (1-1) is not more than that of the purifying device outlet; the length of the outer edge of the bent frame (1) is not less than the length of the outlet of the purification device, and the width of the outer edge of the bent frame (1) is not less than the width of the outlet of the purification device.

5. A purge scanning leak detection system according to claim 1, wherein: the inlet end of the testing tube (5) is communicated with the outlet (2-2-2) of the sampling part, and the outlet end of the testing tube (5) is communicated with the scanning display device (4).

6. A purge scanning leak detection system according to claim 1, wherein: the bent frame (1) is a rectangular frame structure formed by splicing cross beams (1-2) and vertical beams (1-3).

7. A purge scanning leak detection system according to claim 1, wherein: the scanning display device (4) is an optical scanner.

8. A purge scanning leak detection system according to claim 1, wherein: the scanning display device (4) is a particle counter.