CN207623277U - Protective device and sensor structure - Google Patents
Protective device and sensor structure Download PDFInfo
- Publication number
- CN207623277U CN207623277U CN201721927780.XU CN201721927780U CN207623277U CN 207623277 U CN207623277 U CN 207623277U CN 201721927780 U CN201721927780 U CN 201721927780U CN 207623277 U CN207623277 U CN 207623277U
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- protective device
- fixed seat
- holding tank
- top cover
- removable top
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Abstract
The utility model provides a kind of protective device and sensor structure, belongs to electrochemical sensor technology field.Protective device includes fixed seat and removable top cover; fixed seat has the holding tank for accommodating electrochemical sensor; removable top cover is rotatablely connected with fixed seat; fixed seat is provided with the inlet channel and exhaust passage being connected to holding tank, and inlet channel is used to input protective gas and the gas in holding tank is made to be discharged from exhaust passage.The protective device can open holding tank when needed, so that electrochemical sensor is exposed in external space, worked normally, and do not needing in use, electrochemical sensor is protected, be conducive to the service life for improving electrochemical sensor.Sensor structure includes protective device, the repertoire with the protective device.
Description
Technical field
The utility model is related to electrochemical sensor technology fields, in particular to a kind of protective device and sensor
Structure.
Background technology
Earliest electrochemical sensor can be traced back in the 1950s, being used for oxygen monitoring at that time.To 20th century
The mid-80, small electrical chemical sensor starts for detecting a variety of different toxic gases within the scope of PEL, and shows
Good sensibility and selectivity.
Currently, for the sake of protection personal safety, various electrochemical sensors are widely used in many static and mobile applications
Occasion.
Inventor has found under study for action, existing at least to have the following disadvantages in the related technology：
Electrochemical sensor uses unreasonable；
Service life is shorter.
Utility model content
The purpose of this utility model is to provide a kind of protective devices, improve the deficiencies in the prior art, can need
Holding tank is opened when wanting, and so that electrochemical sensor is exposed in external space, is worked normally, need not used
When, electrochemical sensor is protected, the service life for improving electrochemical sensor is conducive to.This is reasonable in design, real
Strong with property, market application potential is huge.
The another object of the utility model is the provision of a kind of sensor structure comprising protection dress mentioned above
It sets, the repertoire with the protective device.
What the embodiments of the present invention were realized in：
The embodiments of the present invention provide a kind of protective device comprising fixed seat and removable top cover, the fixation
Seat tool is useful for accommodating the holding tank of electrochemical sensor, and the removable top cover is rotatablely connected with the fixed seat, described
Fixed seat is provided with the inlet channel and exhaust passage being connected to the holding tank, and the inlet channel is for inputting protective gas
And the gas in the holding tank is made to be discharged from the exhaust passage, the protective device has the removable top cover far from described
The holding tank and first state for making the holding tank open and the removable top cover close the holding tank and make the electrification
Learn the second state that sensor is in closed chamber.
Specifically, the protective device can open holding tank when needed, electrochemical sensor is made to be exposed to outside
Space in, worked normally, do not needed in use, electrochemical sensor is protected, be conducive to improve electrochemistry
The service life of sensor.This is reasonable in design, highly practical, and market application potential is huge.
Optionally, the protective device further includes check valve, and the check valve connect with the fixed seat and corresponds to institute
State exhaust passage, the check valve enables the gas unidirectional in the holding tank flow to the outside of the holding tank.
Optionally, the protective device further includes driving motor, and the driving motor connect and is located at the fixed seat
In the fixed seat, the driving motor is for driving the removable top cover to rotate.
Optionally, the protective device further includes working gear, and the working gear is rotatablely connected with the fixation
Seat, the working gear are fixedly connected with the removable top cover, and the output shaft of the driving motor is equipped with and the work tooth
Meshed gears is taken turns, the driving motor is for driving the working gear to rotate and making the removable top cover relative to described solid
Reservation rotates.
Optionally, the protective device further includes solenoid valve and controller, the solenoid valve be located in the fixed seat and
Corresponding to the inlet channel, the controller be used for receive the electrochemical sensor working signal and successively control described in
Driving motor and the solenoid valve.
Optionally, the fixed seat is provided with annular groove, and the annular groove is arranged the holding tank, second state
Under, the end of the removable top cover is located in the annular groove.
Optionally, the end set of the removable top cover has the gasket of annular, under second state, the gasket
It is embedded in the annular groove.
Optionally, the protective device further includes connecting tube, and the connecting tube is connect with the fixed seat, the connecting tube
It is connected to the inlet channel, some or all of described connecting tube is located at outside the fixed seat.
Optionally, the protective device further includes gas held device, and the gas held device is used for storage protection gas, institute
The output section for stating gas held device is connected to the inlet channel, and input unit and the connecting tube of the gas held device connect
It is logical.
The embodiments of the present invention additionally provide a kind of sensor structure comprising protective device mentioned above,
Repertoire with the protective device.
Compared with prior art, the advantageous effect of the utility model embodiment includes：
The protective device can open holding tank when needed, and electrochemical sensor is made to be exposed to external space
In, it is worked normally, is not being needed in use, electrochemical sensor is protected, be conducive to improve electrochemical sensor
Service life.This is reasonable in design, highly practical, and market application potential is huge.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram that the protective device that the utility model embodiment 1 provides is under first state；
Fig. 2 is the structural schematic diagram that the protective device that the utility model embodiment 1 provides is under the second state；
Fig. 3 is the structural schematic diagram under a kind of visual angle of protective device shown in FIG. 1；
Fig. 4 is the structural schematic diagram for the protective device that the utility model embodiment 2 provides.
Icon：100- protective devices；10- fixed seats；11- holding tanks；12- inlet channels；13- exhaust passages；20- activities
Head cover；30- check valves；40- driving motors；50- working gears；60- solenoid valves；70- connecting tubes；80- gas held devices；200-
Electrochemical sensor.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "upper", "lower", "inner", "outside"
Or position relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
- Fig. 3 is please referred to Fig.1, present embodiments provides a kind of protective device 100 comprising fixed seat 10 and removable top cover
20, there is fixed seat 10 holding tank 11 for accommodating electrochemical sensor 200, removable top cover 20 to be rotatablely connected with fixation
Seat 10, fixed seat 10 are provided with the inlet channel 12 being connected to holding tank 11 and exhaust passage 13, and inlet channel 12 is for inputting
Protective gas and gas in holding tank 11 is made to be discharged from exhaust passage 13, protective device 100 has removable top cover 20 far from holding
It receives slot 11 and the first state and removable top cover 20 that make holding tank 11 open is closed holding tank 11 and makes electrochemical sensor
200 are in the second state of closed chamber.
Protective device 100 shown in Fig. 1 is under first state, and holding tank 11 is opened at this time, electrochemical sensor 200
In external space, can normally it be worked.
The protective device 100 of Fig. 2 and Fig. 3 displayings is under the second state, and holding tank 11 is closed at this time, electrochemical sensing
Device 200 is in the chamber of relative closure, and removable top cover 20 and fixed seat 10 protect electrochemical sensor 200.
After holding tank 11 is closed, holding tank 11 can be inflated by inlet channel 12, being filled with protective gas makes
Gas in holding tank 11 is discharged by exhaust passage 13, makes to be full of protective gas in holding tank 11, it is understood that at this time
The outer surface of electrochemical sensor 200 can only touch protective gas.
Protective gas can select inert gas, or not interfere with the gas of 200 service life of electrochemical sensor.
The protective device 100 can open holding tank 11 when needed, and electrochemical sensor 200 is made to be exposed to outside
Space in, worked normally, do not needed in use, electrochemical sensor 200 is protected, be conducive to improve electrification
Learn the service life of sensor 200.This is reasonable in design, highly practical, and market application potential is huge.
In the present embodiment, protective device 100 further includes check valve 30, and check valve 30 connect with fixed seat 10 and corresponding to row
Gas channel 13, check valve 30 enable the gas unidirectional in holding tank 11 flow to the outside of holding tank 11.
By check valve 30, external air is avoided to enter in holding tank 11 by exhaust passage 13, to improve protection
Effect.
In the present embodiment, protective device 100 further includes driving motor 40, and driving motor 40 connect and is located at fixed seat 10
In fixed seat 10, driving motor 40 is for driving removable top cover 20 to rotate.
Driving motor 40 selects small-sized slowspeed machine, rotating speed relatively low so that removable top cover 20 is slowly rotated to open
Or closing holding tank 11.
In the present embodiment, protective device 100 further includes working gear 50, and working gear 50 is rotatablely connected with fixed seat
10, working gear 50 is fixedly connected with removable top cover 20, and the output shaft of driving motor 40 is equipped with to be engaged with working gear 50
Gear, driving motor 40 is for driving working gear 50 to rotate and removable top cover 20 being made to be rotated relative to fixed seat 10.
Working gear 50 is relatively large in diameter, and the gear diameter on output shaft is smaller, after the two engagement, further functions as deceleration
Effect.
In the present embodiment, protective device 100 further includes solenoid valve 60 and controller, solenoid valve 60 be located in fixed seat 10 and
Corresponding to inlet channel 12, controller is used to receive the working signal of electrochemical sensor 200 and controls driving motor 40 successively
With solenoid valve 60.
When electrochemical sensor 200 needs normal work, controller receives this signal for needing work, control
Driving motor 40 makes removable top cover 20 far from holding tank 11, holding tank 11 is made to open, and electrochemical sensor 200 is exposed to outer
In the space in portion.
When not needing the work of electrochemical sensor 200, controller receives this signal for not needing work, control
Driving motor 40 makes removable top cover 20 close holding tank 11, after completely enclosing, controls solenoid valve 60, protective gas is made to pass through
Inlet channel 12 enters in holding tank 11, in general, into after a certain amount of protective gas, then can close inlet channel 12,
It to avoid the loss of protective gas, of courses, it can also be made to continue slowly to inflate, to ensure that electrochemical sensor 200 begins
Eventually among protective gas.
Controller can be the control structures such as computer board, PLC, may be mounted in fixed seat 10, can also be mounted on
In external other structures.
In the present embodiment, fixed seat 10 is provided with annular groove, and annular groove is arranged holding tank 11, under the second state, movable top
The end of lid 20 is located in annular groove.
By annular groove, sealing effect can be further increased.
In the present embodiment, the end set of removable top cover 20 has a gasket of annular, and under the second state, gasket is embedded at
In annular groove.
Gasket can select that silica gel material is made or rubber material is made, more soft, when removable top cover 20
After end is embedded in annular groove, gasket can play effective buffer action.
In the present embodiment, protective device 100 further includes connecting tube 70, and connecting tube 70 is connect with fixed seat 10, connecting tube 70
It is connected to inlet channel 12, some or all of connecting tube 70 is located at outside fixed seat 10.
Connecting tube 70 has external screw thread, or other connection structures, is connected with external inflatable structure, outer in this way
The inflatable structure in portion can provide protective gas, make it into inlet channel 12.
Inventor has found that the service life waste of a large amount of electrochemical sensor 200 is serious under study for action, such as medicine is real
The particular analysis instrument of room is tested, be averaged only works 2-3 hours weekly, oxygen concentration sensor therein, and working time ratio is：3
Hour/(7x24 hours)=1.8%, i.e., 98% or more sensor life-time waste is in a non-operative state.
By protective device 100, in a non-operative state, electrochemical sensor 200 is protected, electricity is not interfered with
200 normal working condition of chemical sensor, while its service life can be greatly prolonged, reduce maintenance cost.
Embodiment 2
Referring to FIG. 4, the present embodiment also provides a kind of protective device 100, the technical solution that embodiment 1 describes is equally suitable
For the present embodiment, 1 published technical solution of embodiment is not repeated to describe.
Specifically, the present embodiment is with embodiment 1, difference lies in protective device 100 further includes gas held device 80, gas
Container 80 is used for storage protection gas, and the output section of gas held device 80 is connected to inlet channel 12, gas held device 80
Input unit is connected to connecting tube 70.
When it is implemented, can keep it internal in high pressure first to being filled with a large amount of protective gas in gas held device 80
State.
When needing inflation, solenoid valve 60 is opened, and 80 moment of gas held device inflates inlet channel 12, makes protective gas
It is rapidly filled with holding tank 11, is conducive to the object gas being quickly discharged in holding tank 11.
Object gas can be understood as the gas for needing to detect.
In general, also installing check valve in connecting tube 70, make protective gas single flow direction gas held device 80.
Embodiment 3
The present embodiment also provides a kind of sensor structure comprising protective device 100 mentioned above has the guarantor
The repertoire of protection unit 100.
The structure of protective device 100 can be with reference implementation example 1 or 2.
Sensor structure further includes electrochemical sensor 200, is connect with fixed seat 10 and in holding tank 11.
In conclusion the utility model provides a kind of protective device 100, the protective device 100 can needs when
It waits and opens holding tank 11, so that electrochemical sensor 200 is exposed in external space, worked normally, need not used
When, electrochemical sensor 200 is protected, the service life for improving electrochemical sensor 200 is conducive to.The structure design is closed
Reason, highly practical, market application potential is huge.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention can be combined with each other.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of protective device, which is characterized in that including fixed seat and removable top cover, the fixed seat has for accommodating electrification
Learn the holding tank of sensor, the removable top cover is rotatablely connected with the fixed seat, the fixed seat be provided with it is described
The inlet channel and exhaust passage of holding tank connection, the inlet channel is for inputting protective gas and making in the holding tank
Gas is discharged from the exhaust passage, and there is the protective device removable top cover far from the holding tank and to make the receiving
The first state and the removable top cover that slot is opened close the holding tank and the electrochemical sensor are made to be in closing chamber
Second state of room.
2. protective device according to claim 1, which is characterized in that the protective device further includes check valve, the list
It is connect to valve with the fixed seat and corresponds to the exhaust passage, the check valve enables the gas unidirectional stream in the holding tank
To the outside of the holding tank.
3. protective device according to claim 1, which is characterized in that the protective device further includes driving motor, described
Driving motor connect with the fixed seat and in the fixed seat, and the driving motor is for driving the removable top cover to turn
It is dynamic.
4. protective device according to claim 3, which is characterized in that the protective device further includes working gear, described
Working gear is rotatablely connected with the fixed seat, and the working gear is fixedly connected with the removable top cover, the driving
The output shaft of motor, which is equipped with, with the working gear meshed gears, the driving motor to be used to that the working gear to be driven to turn
It moves and the removable top cover is made to be rotated relative to the fixed seat.
5. protective device according to claim 3, which is characterized in that the protective device further includes solenoid valve and control
Device, the solenoid valve are located in the fixed seat and correspond to the inlet channel, and the controller is for receiving the electrification
It learns the working signal of sensor and controls the driving motor and the solenoid valve successively.
6. according to claim 1-5 any one of them protective devices, which is characterized in that the fixed seat is provided with annular groove,
The annular groove is arranged the holding tank, and under second state, the end of the removable top cover is located in the annular groove.
7. protective device according to claim 6, which is characterized in that the end set of the removable top cover has the close of annular
Packing, under second state, the gasket is embedded in the annular groove.
8. according to claim 1-5 any one of them protective devices, which is characterized in that the protective device further includes connection
Pipe, the connecting tube connect with the fixed seat, and the connecting tube is connected to the inlet channel, the part of the connecting tube or
It is entirely located in outside the fixed seat.
9. protective device according to claim 8, which is characterized in that the protective device further includes gas held device, institute
Gas held device is stated for storage protection gas, the output section of the gas held device is connected to the inlet channel, the gas
The input unit of body container is connected to the connecting tube.
10. a kind of sensor structure, which is characterized in that including claim 1-9 any one of them protective devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927780.XU CN207623277U (en) | 2017-12-29 | 2017-12-29 | Protective device and sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927780.XU CN207623277U (en) | 2017-12-29 | 2017-12-29 | Protective device and sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623277U true CN207623277U (en) | 2018-07-17 |
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ID=62831017
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721927780.XU Active CN207623277U (en) | 2017-12-29 | 2017-12-29 | Protective device and sensor structure |
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| Country | Link |
|---|---|
| CN (1) | CN207623277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037164A (en) * | 2017-12-29 | 2018-05-15 | 广州承葛复兴医药科技有限公司 | Protective device and sensor construction |
-
2017
- 2017-12-29 CN CN201721927780.XU patent/CN207623277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037164A (en) * | 2017-12-29 | 2018-05-15 | 广州承葛复兴医药科技有限公司 | Protective device and sensor construction |
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