CN215196287U - Safety type ventilation equipment for experiments with monitoring function - Google Patents
Safety type ventilation equipment for experiments with monitoring function Download PDFInfo
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- CN215196287U CN215196287U CN202121181571.1U CN202121181571U CN215196287U CN 215196287 U CN215196287 U CN 215196287U CN 202121181571 U CN202121181571 U CN 202121181571U CN 215196287 U CN215196287 U CN 215196287U
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Abstract
The utility model relates to the technical field of ventilation equipment, in particular to a safety type ventilation equipment for experiment with monitoring function; be provided with the slide rail in the first purifying chamber, installing frame and slide rail sliding connection, be provided with the active carbon adsorption net on the installing frame, the one end and the liquid reserve tank flange joint of drain pipe, the other end of drain pipe is located the inside of shower, the one end that the drain pipe was kept away from to the shower is provided with the shower head, filter the formaldehyde in the waste gas through the active carbon adsorption net in the first purifying chamber, toxic gas and dust such as methyl alcohol, carry to the shower in with the acid-base neutralization solution in the liquid reserve tank through the drain pipe, thereby spray the second purifying chamber through the shower head, and then handle the HCL in the waste gas, water-soluble gases such as HF, thereby produce the toxic gas in the waste gas in the more comprehensive purification experimentation, reduce the pollution to the environment.
Description
Technical Field
The utility model relates to a ventilation equipment technical field especially relates to a ventilation equipment for safe type experiments with monitoring function.
Background
Laboratory fume chamber is a common ventilation equipment, and its the leading is the exhaust function, in chemical laboratory, produces various harmful gas, foul smell, moisture and easily fires, explosive, corrosive substance during experimental operation, through fume chamber protection user's safety, prevents that the pollutant in the experiment from to the laboratory diffusion.
However, most of the existing laboratory fume hoods directly discharge various harmful gases generated in the experimental process to the outdoor through a fan and an exhaust pipe, so that the environmental pollution is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe type ventilation equipment for experiments with monitor function has solved the current laboratory fume chamber among the prior art and has mostly directly discharged the various harmful gas that produce in with the experimentation through fan and exhaust pipe to outdoor, causes the problem of pollution to the environment.
In order to achieve the purpose, the utility model provides a safety type ventilation equipment for experiments with monitoring function, the safety type ventilation equipment for experiments with monitoring function includes the storage cabinet body, the experiment cabinet body, the fan, the communicating pipe, the multi-functional purifying box and the exhaust pipe, the experiment cabinet body is fixedly connected with the storage cabinet body and is located above the storage cabinet body, the fan is arranged above the experiment cabinet body, one end of the communicating pipe is connected with the output end flange of the fan, the other end of the communicating pipe is connected with the multi-functional purifying box flange, the multifunctional purifying box is internally provided with the multi-functional purifying device, and one end of the multi-functional purifying box, which is far away from the communicating pipe, is provided with the exhaust pipe;
the multifunctional purification device comprises an activated carbon adsorption net, a mounting frame, a liquid storage box, a liquid outlet pipe, a spray pipe and a spray head, wherein a partition plate is arranged inside the multifunctional purification box and divides the inside of the multifunctional purification box into a first purification chamber and a second purification chamber from bottom to top in sequence, a slide rail is arranged in the first purification chamber, the mounting frame is in sliding connection with the slide rail, the activated carbon adsorption net is arranged on the mounting frame, the partition plate is arranged in an inclined structure, one end, away from the activated carbon adsorption net, of the partition plate is provided with a plurality of ventilation holes, the liquid storage box is detachably connected with the multifunctional purification box and is positioned above the multifunctional purification box, the spray pipe penetrates through the top of the multifunctional purification box and is movably connected with the multifunctional purification box, one end of the liquid outlet pipe is connected with a flange of the liquid storage box, the other end of drain pipe is located the inside of shower, the shower is kept away from the one end of drain pipe is provided with the shower head, the shower head is located the baffle is close to the one end of active carbon adsorption net, the exhaust pipe is located multi-functional purifying box is close to the one end of shower.
The waste gas that the experiment cabinet body produced in the experimentation passes through the wind gas is carried extremely in the multi-functional purifying box, according to the difference of experiment content, through in the first purifying chamber the active carbon adsorption net filters noxious and harmful gas and dust such as foul smell, benzene, xylol, formaldehyde, methyl alcohol in the waste gas, through the drain pipe will acid-base neutralization solution in the liquid reserve tank is carried extremely in the shower, thereby passes through the shower head is to the second purifying chamber sprays, and then handles water-soluble gas such as HCL, HF, H2SO4, HCN, H2S in the waste gas.
The multifunctional purifying device further comprises a rotating mechanism, the rotating mechanism comprises a motor, a gear reduction box and an output gear, the motor is detachably connected with the multifunctional purifying box and is located at the top of the multifunctional purifying box, the gear reduction box is arranged at the output end of the motor, the output gear is arranged at the output end of the gear reduction box, a driven tooth part is arranged at one end, far away from the spray header, of the spray pipe, and the output gear is meshed with the driven tooth part.
After the output rotating speed of the motor is reduced through the gear reduction box, the output gear is driven to rotate, so that the driven tooth part is utilized to drive the spray pipe to rotate, and acid-base neutralization liquid in the spray pipe is sprayed into the second purification chamber more uniformly.
The spraying pipe comprises a pipe body and a limiting ring, the spraying head is arranged at one end of the pipe body and located inside the second purifying chamber, the driven tooth portion is arranged at the other end of the pipe body, a clamping groove is further formed in the pipe body, a clamping block is arranged on the limiting ring, the limiting ring is sleeved outside the pipe body, and the clamping block is matched with the clamping groove.
Will the fixture block with the draw-in groove corresponds, thereby will the spacing ring cover is established the outside of body, thereby avoid with the shower is installed when on the multi-functional purifying box, driven gear with the laminating of the top of multi-functional purifying box is not convenient for driven gear with the meshing of output gear.
The limiting ring comprises a first half ring and a second half ring, the inner walls of the first half ring and the second half ring are provided with the clamping blocks, connecting blocks are arranged at two ends of the first half ring and the second half ring, and the connecting blocks on the first half ring are connected with the connecting blocks on the second half ring through bolts.
And placing the first half ring and the second half ring outside the pipe body, so that after the clamping block is clamped into the clamping groove, the connecting blocks on the first half ring and the second half ring are screwed down by using screws, and the installation of the limiting ring is completed.
Wherein, the drain pipe is kept away from the one end of liquid reserve tank is provided with the stopper, the body is kept away from the one end of shower head is provided with the apron, be provided with the through-hole on the apron, the diameter of through-hole with the pipe diameter of drain pipe is unanimous, the stopper with the apron is corresponding.
One end of the liquid outlet pipe is placed in the spraying pipe, and then the cover plate is covered at one end, far away from the spraying head, of the spraying pipe, so that the limiting block and the cover plate are mutually abutted, and the liquid outlet pipe is prevented from being separated from the inside of the spraying pipe in the rotating process of the spraying pipe.
Wherein, the inside of the experiment cabinet body still is provided with monitoring mechanism, monitoring mechanism includes mounting panel, electric putter, mount pad and camera, the mounting panel with experiment cabinet body fixed connection, and be located the top of the inside of the experiment cabinet body, the mounting panel is the slope structure setting, electric putter's installation end with the connection can be dismantled to the mounting panel, electric putter's promotion end is provided with the mount pad, be provided with on the mount pad the camera.
Through electric putter drives the mount pad is in the inside of the experiment cabinet body is flexible, thereby makes through it is more accurate during camera monitoring experiment data.
The mounting frame comprises a frame body and a sealing plate, a placing groove is formed in the multifunctional purifying box, the sealing plate is fixedly connected with the frame body, the frame body is connected with the sliding rail in a sliding mode, the activated carbon adsorption net is arranged on the frame body, and a handle is arranged on the sealing plate.
The frame body is pulled out of the sliding rail by pulling the handle, so that the activated carbon adsorption net on the frame body is convenient to replace.
Wherein, be provided with a plurality of bins on the storage cabinet body, every the bin all with storage cabinet body sliding connection, every all be provided with the handle on the bin, every all still be provided with on the bin and place the frame.
The pulling the handle conveniently takes out each experimental articles for use in the bin, every all set up on the bin place the frame place the business card of placing each experimental articles for use in the frame for it is more convenient when testing.
The utility model discloses a safe type ventilation equipment for experiments with monitoring function, be provided with the slide rail in the first purge bin, the installing frame with slide rail sliding connection, be provided with on the installing frame active carbon adsorption net, the one end of drain pipe with liquid reserve tank flange joint, the other end of drain pipe is located the inside of shower, the shower is kept away from the one end of drain pipe is provided with the shower head, according to the difference of experimental content, through in the first purge bin active carbon adsorption net filters poisonous and harmful gas and dust such as foul smell, benzene, xylol, formaldehyde, methyl alcohol in the waste gas, through the drain pipe will acid-base neutralization solution in the liquid reserve tank carry to in the shower, thereby pass through the shower head pair the second purge bin sprays, and then handles HCL in the waste gas, HF. Water-soluble gases such as H2SO4, HCN, H2S and the like, SO that toxic gases in waste gas generated in the experimental process are more comprehensively purified, and the pollution to the environment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model provides a pair of safe type ventilation equipment for experiments with monitor function's schematic structure.
Fig. 2 is a partial enlarged view of a structure of fig. 1.
Fig. 3 is a side view of the multifunctional purifying box provided by the present invention.
Fig. 4 is a cross-sectional view of the internal structure taken along line a-a of fig. 3 according to the present invention.
Fig. 5 is a partial structure enlarged view of B of fig. 4 according to the present invention.
1-storage cabinet body, 11-storage box, 12-handle, 13-placing frame, 2-experimental cabinet body, 3-fan, 4-communicating pipe, 5-multifunctional purifying box, 51-active carbon adsorption net, 52-mounting frame, 53-liquid storage box, 54-liquid outlet pipe, 55-spray pipe, 56-spray head, 57-partition plate, 58-first purifying chamber, 59-second purifying chamber, 521-frame body, 522-sealing plate, 523-placing groove, 524-handle, 541-limiting block, 551-pipe body, 552-limiting ring, 553-cover plate, 571-vent hole, 581-slide rail, 5521-clamping block, 5522-first half ring, 5523-second half ring, 5524-connecting block, 6-exhaust pipe, 7-rotating mechanism, 71-motor, 72-gear reduction box, 73-output gear, 74-driven tooth part, 8-monitoring mechanism, 81-mounting plate, 82-electric push rod, 83-mounting seat and 84-camera.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the utility model provides a safety type ventilation equipment for experiments with monitoring function, the safety type ventilation equipment for experiments with monitoring function includes the storage cabinet body 1, the experiment cabinet body 2, the fan 3, the communicating pipe 4, the multi-functional purifying box 5 and the exhaust pipe 6, the experiment cabinet body 2 with the storage cabinet body 1 fixed connection, and lie in the top of the storage cabinet body 1, the fan 3 is arranged above the experiment cabinet body 2, one end of the communicating pipe 4 is connected with the output end flange of the fan 3, the other end of the communicating pipe 4 is connected with the multi-functional purifying box 5 flange, the multi-functional purifying device is arranged inside the multi-functional purifying box 5, one end of the multi-functional purifying box 5 far away from the communicating pipe 4 is provided with the exhaust pipe 6;
the multifunctional purification device comprises an activated carbon adsorption net 51, an installation frame 52, a liquid storage tank 53, a liquid outlet pipe 54, a spray pipe 55 and a spray head 56, wherein a partition plate 57 is arranged inside the multifunctional purification tank 5, the partition plate 57 divides the inside of the multifunctional purification tank 5 into a first purification chamber 58 and a second purification chamber 59 from bottom to top in sequence, a slide rail 581 is arranged in the first purification chamber 58, the installation frame 52 is in sliding connection with the slide rail 581, the activated carbon adsorption net 51 is arranged on the installation frame 52, the partition plate 57 is arranged in an inclined structure, one end of the partition plate 57 far away from the activated carbon adsorption net 51 is provided with a plurality of vent holes 571, the liquid storage tank 53 is detachably connected with the multifunctional purification tank 5 and is positioned above the multifunctional purification tank 5, and the spray pipe 55 penetrates through the top of the multifunctional purification tank 5, and with multi-functional purifying box 5 swing joint, the one end of drain pipe 54 with liquid reserve tank 53 flange joint, the other end of drain pipe 54 is located spray pipe 55's inside, spray pipe 55 keeps away from the one end of drain pipe 54 is provided with shower head 56, shower head 56 is located baffle 57 is close to the one end of active carbon adsorption net 51, exhaust pipe 6 is located multi-functional purifying box 5 is close to the one end of spray pipe 55.
In this embodiment, the waste gas generated by the experiment cabinet 2 during the experiment process is delivered to the multifunctional purifying box 5 through the wind, according to different experiment contents, the active carbon adsorption net 51 in the first purifying chamber 58 filters off odor, benzene, xylene, formaldehyde, methanol and other toxic and harmful gases and dust in the waste gas, the waste gas after preliminary purification is delivered to the second purifying chamber 59 through the vent holes 571 on the partition plate 57, the acid-base neutralizing liquid in the liquid storage tank 53 is delivered to the spray pipe 55 through the liquid outlet pipe 54, SO that the second purifying chamber 59 is sprayed through the spray head 56, and then the acid-base neutralizing liquid is used to treat water-soluble gases in the waste gas, such as HCL, HF, H2SO4, HCN, H2S and the like, thereby more comprehensively purifying the toxic gases in the waste gas generated during the experiment process, reducing the pollution to the environment.
Furthermore, the multifunctional purifying device further comprises a rotating mechanism 7, wherein the rotating mechanism 7 comprises a motor 71, a gear reduction box 72 and an output gear 73, the motor 71 is detachably connected with the multifunctional purifying box 5 and is positioned at the top of the multifunctional purifying box 5, the gear reduction box 72 is arranged at the output end of the motor 71, the output gear 73 is arranged at the output end of the gear reduction box 72, a driven tooth part 74 is arranged at one end, far away from the spray header 56, of the spray pipe 55, and the output gear 73 is meshed with the driven tooth part 74.
In this embodiment, after the output rotation speed of the motor 71 is reduced by the gear reduction box 72, the output gear 73 is driven to rotate, so that the driven tooth part 74 is utilized to drive the spraying pipe 55 to rotate, and further, the acid-base neutralization solution in the spraying pipe 55 is more uniformly sprayed into the second purification chamber 59, so that the water-soluble gas in the exhaust gas in the second purification chamber 59 is better purified.
Further, the spray pipe 55 includes a pipe body 551 and a limiting ring 552, the spray head 56 is disposed at one end of the pipe body 551, the spray head 56 is located inside the second purification chamber 59, the driven teeth 74 is disposed at the other end of the pipe body 551, a clamping groove is further disposed on the pipe body 551, a clamping block 5521 is disposed on the limiting ring 552, the limiting ring 552 is sleeved outside the pipe body 551, the clamping block 5521 is fitted to the clamping groove, the limiting ring 552 includes a first half ring 5522 and a second half ring 5523, the clamping block 5521 is disposed on the inner walls of the first half ring 5522 and the second half ring 5523, connecting blocks 5524 are disposed at both ends of the first half ring 5522 and the second half ring 5523, the connecting block 5524 on the first half ring 5522 is bolted to the connecting block 5524 on the second half ring 5523, a limiting block 541 is disposed at one end of the liquid outlet pipe 54 away from the liquid storage tank 53, a cover plate 553 is arranged at one end of the pipe body 551 far away from the spray head 56, a through hole is arranged on the cover plate 553, the diameter of the through hole is consistent with the pipe diameter of the liquid outlet pipe 54, and the limiting block 541 corresponds to the cover plate 553.
In this embodiment, after the first half ring 5522 and the second half ring 5523 are placed outside the pipe body 551, so that the clamping block 5521 is clamped into the clamping groove, the connecting block 5524 on the first half ring 5522 and the second half ring 5523 is screwed by a screw, thereby completing the installation of the limiting ring 552, the limiting ring 552 is sleeved outside the pipe body 551, thereby avoiding that the driven gear is attached to the top of the multifunctional purifying box 5 when the shower pipe 55 is installed on the multifunctional purifying box 5, so that the driven gear is not convenient to be engaged with the output gear 73, after one end of the liquid outlet pipe 54 is placed inside the shower pipe 55, the cover plate 553 is covered on one end of the shower pipe 55 far away from the shower head 56, thereby the limiting block 541 and the cover plate are mutually abutted, and further avoiding that the shower pipe 55 is rotated, the outlet pipe 54 is separated from the inside of the shower pipe 55.
Further, the inside of the experiment cabinet body 2 still is provided with monitoring mechanism 8, monitoring mechanism 8 includes mounting panel 81, electric putter 82, mount pad 83 and camera 84, mounting panel 81 with experiment cabinet body 2 fixed connection, and be located the top of the inside of the experiment cabinet body 2, mounting panel 81 is the slope structure setting, electric putter 82's installation end with the connection can be dismantled to mounting panel 81, electric putter 82's promotion end is provided with mount pad 83, be provided with on the mount pad 83 camera 84.
In this embodiment, the electric push rod 82 drives the mounting seat 83 to stretch out and draw back inside the experiment cabinet 2, so that the experiment data monitored by the camera 84 is more accurate.
Further, the mounting frame 52 includes a frame 521 and a sealing plate 522, a placing groove 523 is disposed on the multifunctional purification box 5, the sealing plate 522 is fixedly connected to the frame 521, the frame 521 is slidably connected to the slide rail 581, the activated carbon adsorption net 51 is disposed on the frame 521, and a handle 524 is disposed on the sealing plate 522.
In this embodiment, the handle 524 is pulled to pull the frame 521 out of the slide rail 581, thereby facilitating replacement of the activated carbon adsorption net 51 on the frame 521.
Further, be provided with a plurality of bin 11 on the storage cabinet body 1, every bin 11 all with storage cabinet body 1 sliding connection, every all be provided with handle 12 on the bin 11, every all still be provided with on the bin 11 and place frame 13, every place frame 13 and all have transparent material to make.
In this embodiment, the pulling handle 12, conveniently takes out each experimental articles for use in the bin 11, every all set up on the bin 11 place frame 13 place the business card of placing each experimental articles for use in the frame 13 for it is more convenient when experimenting.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A safety type ventilation device for experiment with monitoring function is characterized in that,
the safety type experimental ventilation equipment with the monitoring function comprises a storage cabinet body, an experimental cabinet body, a fan, a communicating pipe, a multifunctional purification box and an exhaust pipe, wherein the experimental cabinet body is fixedly connected with the storage cabinet body and is positioned above the storage cabinet body;
the multifunctional purification device comprises an activated carbon adsorption net, a mounting frame, a liquid storage box, a liquid outlet pipe, a spray pipe and a spray head, wherein a partition plate is arranged inside the multifunctional purification box and divides the inside of the multifunctional purification box into a first purification chamber and a second purification chamber from bottom to top in sequence, a slide rail is arranged in the first purification chamber, the mounting frame is in sliding connection with the slide rail, the activated carbon adsorption net is arranged on the mounting frame, the partition plate is arranged in an inclined structure, one end, away from the activated carbon adsorption net, of the partition plate is provided with a plurality of ventilation holes, the liquid storage box is detachably connected with the multifunctional purification box and is positioned above the multifunctional purification box, the spray pipe penetrates through the top of the multifunctional purification box and is movably connected with the multifunctional purification box, one end of the liquid outlet pipe is connected with a flange of the liquid storage box, the other end of drain pipe is located the inside of shower, the shower is kept away from the one end of drain pipe is provided with the shower head, the shower head is located the baffle is close to the one end of active carbon adsorption net, the exhaust pipe is located multi-functional purifying box is close to the one end of shower.
2. Safety laboratory ventilation device with monitoring according to claim 1,
the multifunctional purifying device further comprises a rotating mechanism, the rotating mechanism comprises a motor, a gear reduction box and an output gear, the motor is detachably connected with the multifunctional purifying box and is located at the top of the multifunctional purifying box, the gear reduction box is arranged at the output end of the motor, the output gear is arranged at the output end of the gear reduction box, a driven tooth part is arranged at one end, away from the spray header, of the spray pipe, and the output gear is meshed with the driven tooth part.
3. Safety laboratory ventilation device with monitoring according to claim 2,
the spray pipe comprises a pipe body and a limiting ring, wherein the spray head is arranged at one end of the pipe body and is located inside the second purification chamber, the driven tooth part is arranged at the other end of the pipe body, a clamping groove is further formed in the pipe body, a clamping block is arranged on the limiting ring, the limiting ring is sleeved outside the pipe body, and the clamping block is matched with the clamping groove.
4. Safety laboratory ventilation apparatus with monitoring according to claim 3,
the limiting ring comprises a first half ring and a second half ring, the inner walls of the first half ring and the second half ring are provided with the clamping blocks, connecting blocks are arranged at two ends of the first half ring and the second half ring, and the connecting blocks on the first half ring are connected with the connecting blocks on the second half ring through bolts.
5. Safety laboratory ventilation apparatus with monitoring according to claim 3,
the liquid storage tank is arranged on the upper portion of the liquid storage tank, the liquid storage tank is arranged on the lower portion of the liquid storage tank, a limiting block is arranged at one end, far away from the liquid storage tank, of the liquid storage tank, an cover plate is arranged at one end of the spray head, a through hole is formed in the cover plate, the diameter of the through hole is consistent with the pipe diameter of the liquid storage tank, and the limiting block corresponds to the cover plate.
6. Safety laboratory ventilation device with monitoring according to claim 1,
the inside of the experiment cabinet body still is provided with monitoring mechanism, monitoring mechanism includes mounting panel, electric putter, mount pad and camera, the mounting panel with experiment cabinet body fixed connection, and be located the top of the inside of the experiment cabinet body, the mounting panel is the slope structure setting, electric putter's installation end with the connection can be dismantled to the mounting panel, electric putter's promotion end is provided with the mount pad, be provided with on the mount pad the camera.
7. Safety laboratory ventilation device with monitoring according to claim 1,
the mounting frame comprises a frame body and a sealing plate, a placing groove is formed in the multifunctional purifying box, the sealing plate is fixedly connected with the frame body, the frame body is connected with the sliding rail in a sliding mode, the activated carbon adsorption net is arranged on the frame body, and a handle is arranged on the sealing plate.
8. Safety laboratory ventilation device with monitoring according to claim 1,
the storage cabinet is provided with a plurality of bin, every on the storage cabinet body the bin all with storage cabinet body sliding connection, every all be provided with the handle on the bin, every all still be provided with on the bin and place the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181571.1U CN215196287U (en) | 2021-05-28 | 2021-05-28 | Safety type ventilation equipment for experiments with monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181571.1U CN215196287U (en) | 2021-05-28 | 2021-05-28 | Safety type ventilation equipment for experiments with monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215196287U true CN215196287U (en) | 2021-12-17 |
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ID=79422115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121181571.1U Active CN215196287U (en) | 2021-05-28 | 2021-05-28 | Safety type ventilation equipment for experiments with monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215196287U (en) |
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2021
- 2021-05-28 CN CN202121181571.1U patent/CN215196287U/en active Active
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