CN213568791U - Automatic film changing system - Google Patents
Automatic film changing system Download PDFInfo
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- CN213568791U CN213568791U CN202022096364.8U CN202022096364U CN213568791U CN 213568791 U CN213568791 U CN 213568791U CN 202022096364 U CN202022096364 U CN 202022096364U CN 213568791 U CN213568791 U CN 213568791U
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Abstract
The utility model discloses an automatic membrane changing system, which is characterized in that the system comprises an air inlet pipeline, an installation table surface and a fan device, the air outlet end of the air inlet pipeline is connected with a fan cover, the other end of the fan cover is hermetically connected with a filter membrane pressing frame, the installation table surface is provided with a transmission mechanism and a driving mechanism, the transmission mechanism is provided with a travel switch, the driving mechanism comprises a motor and a cam connected with the output end of the motor, the driving mechanism is arranged into two groups and is respectively arranged at the two sides of the filter membrane transmission direction, a driven frame is arranged on the filter membrane pressing frame, the cam can drive the filter membrane pressing frame to move upwards through the driven frame, the filter membrane pressing frame is also provided with a sensing device, the system can drive the filter membrane pressing frame to lift through a driving part, the sensing device on the filter membrane pressing frame can open a filter membrane to transmit a walking membrane when the filter membrane pressing frame rises, the new and old filter membranes realize displacement by cyclic reciprocation, thereby realizing automatic membrane replacement and automatic sampling.
Description
Technical Field
The utility model relates to an atmospheric environment monitoring field, more specifically say, it relates to an automatic trade membrane system.
Background
With the increasingly prominent nuclear safety problem in the current society, the sampling and monitoring work aiming at nuclear leakage and nuclear radiation is very important, and the sampling and research of a plurality of objects such as atmosphere, water, soil and the like are included. The atmospheric sampling is an important link in nuclear safety monitoring. The national field of nuclear safety monitoring and nuclear safety analysis is being greatly promoted, and radiation stations and auxiliary monitoring stations are successively established in all regions in the country. The radiation station needs to be provided with sampling equipment such as dry and wet sedimentation, an atmospheric iodine sampler, an atmospheric aerosol sampler and the like, and also needs to be provided with a suspended particulate sampler and an analysis instrument.
Labor costs have risen dramatically in recent years. With the development of scientific research, the demand of scientific researchers is also increasing. Unattended automation equipment is particularly important. And most of samplers in China at present need manual field operation or manual field management to carry out sampling tasks. If the nuclear safety problem really occurs, scientific research personnel have various safety risks if the field manual sampling is carried out. Therefore, the full-automatic sampling without human intervention is more meaningful.
The current suspended particles sample thief adopts the fan to adhere to the particulate matter in the atmosphere on the filter membrane usually, and specific flow is: the sampler is closed first, the filter membrane collecting the particulate matter is taken down, the sampled filter membrane is sent to be analyzed, meanwhile, a new filter membrane is placed in the sampler, and then the sampler is opened so as to facilitate the next sampling. The whole process is low in efficiency, the interval of two sampling times is long, the step of replacing the filter membrane is complex, and time and labor are wasted.
Therefore, the automatic membrane replacement and automatic sampling of the suspended particle sampler are problems which need to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an automatic trade membrane system, this system can realize the automatic membrane of trading through the lift operation at filter membrane data send process through drive arrangement.
In order to achieve the above purpose, the utility model provides a following technical scheme: an automatic film changing system is characterized in that: the air outlet end of the air inlet pipeline is connected with a fan cover used for sealing and sampling, the mounting table top is provided with a vent for air circulation, the fan device is provided with an air inlet used for being hermetically connected with the vent, one end of the fan cover is hermetically connected with the air outlet end of the air inlet pipeline, the other end of the fan cover is hermetically connected with a filter membrane pressing frame used for pressing the filter membrane for sampling, the width size of the filter membrane pressing frame is matched with the width size of the filter membrane, one side of the mounting table top is provided with a membrane releasing device used for releasing the filter membrane, the other side of the mounting table top is provided with a membrane collecting device used for rolling the filter membrane, the mounting table top is provided with a transmission mechanism used for transversely conveying the filter membrane and a driving mechanism used for driving the filter membrane pressing frame to lift, the filter membrane conveying device is characterized in that travel switches used for opening or closing filter membrane conveying are arranged on the transmission mechanism, the driving mechanism comprises a motor arranged on the mounting table board and a cam connected to the output end of the motor, the driving mechanism is arranged in two groups and is respectively arranged on two sides of the filter membrane conveying direction, a driven frame used for being abutted to the upper portion of the cam is arranged on the filter membrane pressing frame, when the motor drives the cam to rotate, the cam can drive the filter membrane pressing frame to move upwards through the driven frame, an induction device is further arranged on the filter membrane pressing frame, when the filter membrane pressing frame rises, the induction device opens the travel switches to open the filter membrane conveying, and when the filter membrane pressing frame falls, the induction device closes the travel switches to stop the filter.
Furthermore, the transmission mechanism comprises a tiling guide roller which is arranged on one side of the mounting table board close to the film placing device and is used for tiling the filter film conveyed by the film placing device to the mounting table board, and a recovery guide roller which is arranged on one side of the mounting table board close to the film collecting device and is used for conveying the filter film sampled on the mounting table board to the film collecting device, wherein the mounting table board is provided with a filter film supporting plate for supporting and conveying the filter film, the vent hole penetrates through the filter film supporting plate, the filter film entering the mounting table board and the filter film leaving the mounting table board and the filter film supporting plate can be always kept on the same horizontal plane through the tiling guide roller and the recovery guide roller, the film collecting device is provided with a power device for driving the film collecting device to roll the filter film, and the film collecting device can drive the film placing device to carry out film placing operation when carrying, the travel switch can control the power device to be turned on or off.
Furthermore, the mounting table top is further provided with a limiting guide post, the length direction of the limiting guide post is consistent with the moving direction of the filter membrane pressing frame, a guide hole for the limiting guide post to penetrate through is formed in the filter membrane pressing frame, and the outer diameter of the limiting guide post is matched with the inner diameter of the guide hole.
Further, the cam is a disc cam, the motor is connected with the cam through a driving rotating shaft, the driving rotating shaft drives the cam to rotate, the driven frame is arranged in an n-shaped structure, two opposite ends of the driven frame are fixedly connected to the filter membrane pressing frame, when the driving rotating shaft drives the cam to rotate until the protruding portion of the cam abuts against the driven frame, the driven frame is lifted along with the rotation of the cam to drive the filter membrane pressing frame to ascend, and when the driving rotating shaft drives the cam to rotate until the protruding portion of the cam abuts against the surface of the filter membrane pressing frame, the filter membrane pressing frame is pressed by the cam to abut against the filter membrane.
Further, induction system is including setting up on the filter membrane pressure frame and along with the butt piece that the filter membrane pressure frame removed, travel switch is including supplying the butt piece to remove the last switch and the under switch of butt, when the filter membrane pressure frame rose, the butt piece can open the filter membrane conveying with the last switch butt, when the filter membrane pressure frame descends, the butt piece can close the filter membrane conveying with the under switch butt.
Further, the fan device is including the fan, the fan links with drive mechanism, and the fan is opened when butt piece and under-cut-off butt, and drive mechanism stops conveying the filter membrane, and the atmosphere enters into the fan housing along with the intake stack and samples, and the fan is closed when butt piece and the last switch butt, and drive mechanism begins conveying the filter membrane, and the sampling pauses.
Further, the system is also provided with a timer for recording the rising or falling time of the filter membrane pressure frame and a responder for receiving data information of the timer, the responder is preset with standard rising or falling time of the filter membrane pressure frame, and when the rising or falling time of the filter membrane pressure frame exceeds the set time, the responder judges that the time is not finished, and sends out an alarm and turns off the motor.
Furthermore, a safety casing for preventing accidental touch is arranged outside the driving mechanism.
To sum up, the utility model discloses following beneficial effect has: the system can drive the filter membrane pressing frame to lift through the driving part, the induction device on the filter membrane pressing frame can open the filter membrane to convey into the walking membrane when the filter membrane pressing frame rises, the filter membrane conveying is closed to carry out sampling work when the filter membrane pressing frame descends, and the cyclic reciprocating enables the new filter membrane and the old filter membrane to realize automatic membrane replacement and automatic sampling.
Drawings
FIG. 1 is a schematic perspective view of an automatic film changing system;
FIG. 2 is a schematic side perspective view of an automatic film changing system;
FIG. 3 is a schematic perspective view of the mounting table;
FIG. 4 is a schematic perspective view of a part of an automatic film changing system (a part above a mounting table);
fig. 5 is a partial perspective view (transmission mechanism and driving mechanism) of an automatic film changing system.
Reference numerals: 1. an air inlet pipeline; 11. a fan housing; 2. mounting a table top; 3. a fan device; 31. an air inlet; 21. a transmission mechanism; 211. a travel switch; 2111. an upper switch; 2112. a lower switch; 212. pressing the filter membrane frame; 2121. a guide hole; 213. an induction device; 214. limiting the guide post; 22. a drive mechanism; 221. a motor; 222. driving the rotating shaft; 223. a cam; 224. a driven frame; 225. a secure enclosure; 23. a vent; 24. a film releasing device; 25. a film collecting device; 26. laying guide rollers; 27. recovering the guide roller; 28. a filter membrane supporting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-5, an automatic film changing system is characterized in that: including being used for the intake stack 1 with the atmosphere intercommunication, and the setting is at the installation mesa 2 of intake stack 1 air-out end, and set up the fan device 3 that the installation mesa 2 below is used for the induced air, the air-out end of intake stack 1 is connected with the fan housing 11 that is used for sealed sampling, be provided with the vent 23 that supplies the circulation of air on the installation mesa 2, be provided with on the fan device 3 and be used for the air intake 31 with vent 23 sealing connection, the one end of fan housing 11 and the air-out end sealing connection of intake stack 1, other end sealing connection has and is used for pressing the filter membrane to press the frame 212 is pressed to the filter membrane that the filter membrane carries out the sampling, the width size of filter membrane press. Sealing connection makes the filter membrane can only carry out the sampling work from the atmosphere that intake stack 1 got into between intake stack 1 and the fan housing 11, can make the filter membrane not receive external atmosphere interference when the sampling like this, and the sampling data is more representative, and subsequent sampling analysis is more accurate. The filter membrane presses frame 212 to select the filter membrane to carry out sampling work to fixed atmospheric adsorption's scope on the filter membrane, and the looks adaptation here indicates that filter membrane presses frame 212 to press and covers the filter membrane in the width direction of filter membrane, ensures that only by the filter membrane press the partial filter membrane in frame selection of frame 212 can carry out sampling work, helps the standardization of sampling process, makes things convenient for the expansion of follow-up sampling analysis work.
One side of the mounting table board 2 is provided with a membrane releasing device for releasing the filter membrane, the other side is provided with a membrane collecting device for collecting the filter membrane, the mounting table board 2 is provided with a transmission mechanism 21 for transversely conveying the filter membrane and a driving mechanism 22 for driving the filter membrane pressing frame 212 to lift, the transmission mechanism 21 is provided with a travel switch 211 for opening or closing the filter membrane conveying, the driving mechanism 22 comprises a motor 221 arranged on the mounting table board 2 and a cam 223 connected with the output end of the motor 221, the driving mechanisms 22 are arranged into two groups and respectively arranged at two sides of the filter membrane conveying direction, the filter membrane pressing frame 212 is provided with a driven frame 224 for abutting against the upper part of the cam 223, when the motor 221 drives the cam 223 to rotate, the cam 223 can drive the filter membrane pressing frame 212 to move upwards through the driven frame 224, the filter membrane pressing frame 212 is also provided with a sensing device 213, when, the sensing device 213 turns on the travel switch 211 to start the membrane transport, and when the membrane pressure frame 212 descends, the sensing device 213 turns off the travel switch 211 to stop the membrane transport.
In conclusion, the system can drive the filter membrane pressing frame 212 to lift through the driving part, the sensing device 213 on the filter membrane pressing frame 212 can start the filter membrane transmission to feed the traveling membrane when the filter membrane pressing frame 212 rises, and can close the filter membrane transmission to perform sampling work when the filter membrane pressing frame 212 descends, and the new filter membrane and the old filter membrane are enabled to displace in a cyclic reciprocating mode, so that automatic membrane replacement and automatic sampling are realized.
The transmission mechanism 21 comprises a flat laying guide roller 26 which is arranged on one side of the mounting table top 2 close to the membrane placing device 24 and is used for flat laying the filter membrane conveyed by the membrane placing device 24 on the mounting table top 2, and a recovery guide roller 27 which is arranged on one side of the mounting table top 2 close to the membrane receiving device 25 and is used for conveying the filter membrane sampled on the mounting table top 2 to the membrane receiving device 25, a filter membrane supporting plate 28 used for supporting the conveying of the filter membrane is arranged on the mounting table top 2, a vent 23 is arranged by penetrating through the filter membrane supporting plate 28, the filter membrane entering the mounting table top 2 and the filter membrane leaving the mounting table top 2 and the filter membrane supporting plate 28 can be always kept on the same horizontal plane through the flat laying guide roller 26 and the recovery guide roller 27, a power device used for driving the membrane receiving device 25 to carry out the operation of rolling the filter membrane is arranged on the membrane receiving device 25, and the, the travel switch 211 can control the power device to be turned on and off. Through setting up like this and having realized the horizontal conveying of filter membrane on mounting table surface 2, tiling deflector roll 26 and retrieve deflector roll 27 and can make the filter membrane of horizontal conveying and filter membrane layer board 28 be in same horizontal plane, can avoid filter membrane and mounting table surface 2 contact to reduce the wearing and tearing of filter membrane, the life of extension filter membrane. Thereby travel switch 211 can be through controlling opening and closing of power device control filter membrane conveying, just so can make the filter membrane can trigger travel switch 211 in the data send process and pause the conveying, and new and old filter membrane carries out horizontal displacement after the sampling, further realizes the automatic membrane that trades.
The mounting table 2 is further provided with a limiting guide post 214, the length direction of the limiting guide post 214 is consistent with the moving direction of the filter membrane pressing frame 212, the filter membrane pressing frame 212 is provided with a guide hole 2121 for the limiting guide post 214 to pass through, and the outer diameter of the limiting guide post 214 is matched with the inner diameter of the guide hole 2121. The limiting guide columns 214 are used for limiting the movement of the filter membrane pressing frame 212 in the horizontal direction, so that the filter membrane pressing frame 212 slides directionally along the limiting guide columns 214, and the lifting stability of the filter membrane pressing frame 212 is improved. The limit guide columns 214 and the guide holes 2121 can be provided with a plurality of groups, and the stability of the lifting of the filter membrane pressing frame 212 can be further improved by the matching arrangement of the plurality of groups.
The cam 223 is a disc cam, the motor 221 is connected with the cam 223 through the driving rotating shaft 222, the driving rotating shaft 222 drives the cam 223 to rotate, the driven frame 224 is arranged in an n-shaped structure, two opposite ends of the driven frame are fixedly connected to the filter membrane pressing frame 212, when the driving rotating shaft 222 drives the cam 223 to rotate until the protruding portion of the cam 223 abuts against the driven frame 224, the driven frame 224 rotates along with the cam 223 to be lifted so as to drive the filter membrane pressing frame 212 to ascend, and the driving rotating shaft 222 drives the cam 223 to rotate until the protruding portion of the cam 223 abuts against the surface of the filter membrane pressing frame 212, and the filter membrane pressing frame 212 is pressed by the cam 223 to abut against the filter. The design of cam 223 structure has realized that filter membrane presses frame 212 intermittent type lifting motion, can utilize the filter membrane to press the frame 212 lifting and descend between the intermittent type time conveying new filter membrane, just so can realize the displacement of new and old filter membrane and change, has realized the automatic change of filter membrane, and the manual intervention of avoiding also makes the researcher can carry out the analysis keeping away from the risk area when practicing thrift the labour.
The sensing device 213 includes an abutting piece which is arranged on the filter membrane pressing frame 212 and moves along with the filter membrane pressing frame 212, the travel switch 211 includes an upper switch 2111 and a lower switch 2112 which are used for the abutting piece to move and abut, when the filter membrane pressing frame 212 ascends, the abutting piece can abut against the upper switch 2111 to open the filter membrane transmission, and when the filter membrane pressing frame 212 descends, the abutting piece can abut against the lower switch 2112 to close the filter membrane transmission. When the filter membrane pressing frame 212 descends, the lower switch 2112 is triggered by the abutting sheet to close transmission, at the moment, sampling operation is carried out, when the filter membrane pressing frame 212 ascends, the upper switch 2111 is triggered by the abutting sheet to open transmission, at the moment, sampling is stopped, the transmission mechanism 21 transmits a new filter membrane, and automatic membrane replacement is realized while multi-round sampling is realized in a circulating reciprocating manner.
The fan device 3 comprises a fan, the fan is linked with the transmission mechanism 21, the fan is opened when the abutting sheet abuts against the lower switch 2112, the transmission mechanism 21 stops conveying the filter membrane, the atmosphere enters the fan cover 11 along with the air inlet pipeline 1 for sampling, the fan is closed when the abutting sheet abuts against the upper switch 2111, the transmission mechanism 21 starts conveying the filter membrane, and sampling is suspended. The membrane is automatically replaced and automatic sampling is carried out, the sampling interval duration can be effectively shortened, more sufficient sampling data can be obtained, and data support can be further provided for sampling analysis.
The system is also provided with a timer for recording the rising or falling time length of the filter membrane pressure frame 212 and a responder for receiving data information of the timer, wherein the responder is preset with the standard rising or falling time length of the filter membrane pressure frame 212, and when the rising or falling time length of the filter membrane pressure frame 212 exceeds the set time length, the responder judges that the time is not completed, and sends out an alarm and turns off the motor 221. The setting is mainly a fault emergency measure, the system needs to be matched with sampling analysis requirements, analysis work needs to record sampling flow, sampling time and sampling membrane number information, the time length for the filter membrane pressing frame 212 to rise or fall is required to be controlled, once the filter membrane pressing frame 212 does not rise or fall within the specified time length, the sampling quantity of the lower filter membrane is influenced and is not matched with the sampling quantity of the actual filter membrane, so that great influence is caused on sampling data and subsequent analysis, the problem can be timely detected through the setting of the timer and the responder, an alarm is given out to timely remind workers to detect, the motor 221 is turned off, the filter membrane is stopped from being transmitted, and the influence on the previous correct sampling data is avoided.
A safety housing 225 for preventing accidental contact is provided in addition to the driving mechanism 22. The safety housing 225 provides a relatively closed environment for the motor 221, which on one hand helps to prevent the motor 221 from being interfered by the outside, and on the other hand prevents the worker from touching the motor by mistake during the operation such as maintenance and the like to cause danger or the whole machine from being unsmooth in operation.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An automatic film changing system is characterized in that: comprises an air inlet pipeline (1) communicated with the atmosphere, a mounting table board (2) arranged at the air outlet end of the air inlet pipeline (1) and a fan device (3) arranged below the mounting table board (2) and used for inducing air, wherein the air outlet end of the air inlet pipeline (1) is connected with a fan cover (11) used for sealed sampling, the mounting table board (2) is provided with a vent (23) for air circulation, the fan device (3) is provided with an air inlet (31) used for being hermetically connected with the vent (23), one end of the fan cover (11) is hermetically connected with the air outlet end of the air inlet pipeline (1), the other end of the fan cover is hermetically connected with a filter membrane pressing frame (212) used for pressing a filter membrane to sample, the width dimension of the filter membrane pressing frame (212) is matched with the width dimension of the filter membrane, one side of the mounting table board (2) is provided with a membrane releasing device (, the other side is provided with a membrane collecting device (25) for collecting the filter membrane, the mounting table board (2) is provided with a transmission mechanism (21) for transversely conveying the filter membrane and a driving mechanism (22) for driving the filter membrane pressing frame (212) to ascend and descend, the transmission mechanism (21) is provided with travel switches (211) for opening or closing the filter membrane conveying, the driving mechanism (22) comprises a motor (221) arranged on the mounting table board (2) and cams (223) connected to the output end of the motor (221), the driving mechanisms (22) are arranged into two groups and respectively arranged at two sides of the filter membrane conveying direction, the filter membrane pressing frame (212) is provided with a driven frame (224) for abutting against the upper part of the cams (223), and when the motor (221) drives the cams (223) to rotate, the cams (223) can drive the filter membrane pressing frame (212) to move upwards through the driven frame (224), the filter membrane pressing frame (212) is further provided with a sensing device (213), when the filter membrane pressing frame (212) rises, the sensing device (213) opens the travel switch (211) to start filter membrane conveying, and when the filter membrane pressing frame (212) falls, the sensing device (213) closes the travel switch (211) to stop filter membrane conveying.
2. The system of claim 1, wherein: the transmission mechanism (21) comprises a flat laying guide roller (26) which is arranged on one side of the mounting table board (2) close to the film laying device (24) and used for flat laying the filter film conveyed out by the film laying device (24) to the mounting table board (2) and a recovery guide roller (27) which is arranged on one side of the mounting table board (2) close to the film collecting device (25) and used for conveying the filter film subjected to sampling completion on the mounting table board (2) to the film collecting device (25), a filter film supporting plate (28) used for supporting filter film conveying is arranged on the mounting table board (2), the vent (23) penetrates through the filter film supporting plate (28) to be arranged, the filter film entering the mounting table board (2) and the filter film leaving the mounting table board (2) can be always kept on the same horizontal plane together with the filter film supporting plate (28) through the flat laying guide roller (26) and the recovery guide roller (27), and a power device used for driving the film collecting device (25) to carry out rolling operation is arranged, the membrane collecting device (25) can drive the membrane releasing device (24) to release the membranes while rolling the filter membranes, and the travel switch (211) can control the power device to be opened and closed.
3. The system of claim 1, wherein: the filter membrane filter pressing frame is characterized in that a limiting guide post (214) is further arranged on the mounting table top (2), the length direction of the limiting guide post (214) is consistent with the moving direction of the filter membrane pressing frame (212), a guide hole (2121) for the limiting guide post (214) to penetrate through is formed in the filter membrane pressing frame (212), and the outer diameter of the limiting guide post (214) is matched with the inner diameter of the guide hole (2121).
4. The system of claim 1, wherein: the filter membrane pressing frame is characterized in that the cam (223) is a disc-shaped cam, the motor (221) is connected with the cam (223) through a driving rotating shaft (222), the driving rotating shaft (222) drives the cam (223) to rotate, the driven frame (224) is arranged in an n-shaped structure, two opposite ends of the driven frame are fixedly connected to the filter membrane pressing frame (212), when the driving rotating shaft (222) drives the cam (223) to rotate until the protruding portion of the cam (223) abuts against the driven frame (224), the driven frame (224) is lifted along with the rotation of the cam (223) so as to drive the filter membrane pressing frame (212) to ascend, and when the driving rotating shaft (222) drives the cam (223) to rotate until the protruding portion of the cam (223) abuts against the surface of the filter membrane pressing frame (212), the filter membrane pressing frame (212) is pressed by the cam (223) to abut against the filter membrane.
5. The system of claim 1, wherein: the induction device (213) comprises an abutting sheet which is arranged on the filter membrane pressure frame (212) and moves along with the filter membrane pressure frame (212), the travel switch (211) comprises an upper switch (2111) and a lower switch (2112) which are used for the abutting sheet to move and abut, when the filter membrane pressure frame (212) ascends, the abutting sheet can abut against the upper switch (2111) to open the filter membrane transmission, and when the filter membrane pressure frame (212) descends, the abutting sheet can abut against the lower switch (2112) to close the filter membrane transmission.
6. The system of claim 5, wherein: the fan device (3) comprises a fan, the fan is linked with a transmission mechanism (21), the fan is opened when a butt joint sheet is abutted against a lower switch (2112), the transmission mechanism (21) stops conveying the filter membrane, the atmosphere enters the fan cover (11) along with the air inlet pipeline (1) for sampling, the fan is closed when the butt joint sheet is abutted against an upper switch (2111), the transmission mechanism (21) starts conveying the filter membrane, and sampling is suspended.
7. The system of claim 1, wherein: the system is also provided with a timer for recording the rising or falling time of the filter membrane pressure frame (212) and a responder for receiving data information of the timer, wherein the responder is preset with standard rising or falling time of the filter membrane pressure frame (212), and when the rising or falling time of the filter membrane pressure frame (212) exceeds the set time, the responder judges that the time is not finished, and sends out an alarm and turns off the motor (221).
8. The system of claim 1, wherein: the driving mechanism (22) is also provided with a safety casing (225) for preventing accidental touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022096364.8U CN213568791U (en) | 2020-09-22 | 2020-09-22 | Automatic film changing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022096364.8U CN213568791U (en) | 2020-09-22 | 2020-09-22 | Automatic film changing system |
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| CN213568791U true CN213568791U (en) | 2021-06-29 |
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| CN202022096364.8U Active CN213568791U (en) | 2020-09-22 | 2020-09-22 | Automatic film changing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236051A (en) * | 2021-12-14 | 2022-03-25 | 吴栋森 | Non-adhesion type gas detection robot |
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2020
- 2020-09-22 CN CN202022096364.8U patent/CN213568791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236051A (en) * | 2021-12-14 | 2022-03-25 | 吴栋森 | Non-adhesion type gas detection robot |
| CN114236051B (en) * | 2021-12-14 | 2023-11-24 | 苏州工业园区泰智测控技术有限公司 | Non-adhesion type gas detection robot |
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