CN113686941A - Chemical sensor - Google Patents
Chemical sensor Download PDFInfo
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- CN113686941A CN113686941A CN202110914333.5A CN202110914333A CN113686941A CN 113686941 A CN113686941 A CN 113686941A CN 202110914333 A CN202110914333 A CN 202110914333A CN 113686941 A CN113686941 A CN 113686941A
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- shell
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- 239000000126 substance Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000001514 detection method Methods 0.000 claims abstract description 65
- 239000000523 sample Substances 0.000 claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 235000014676 Phragmites communis Nutrition 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 33
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000670 limiting effect Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
Abstract
The invention discloses a chemical sensor which comprises a shell main body, wherein the central positions of the front end and the rear end of the inner surface of the shell main body are movably connected with an adjusting mechanism, the adjusting mechanism comprises a movable block, a sensor main body, a detection probe, a first gear, a second gear and a rotating rod, the plurality of sensor main bodies are embedded and connected in the movable block, and the detection probe is fixedly connected to one end, far away from the movable block, of the sensor main body. According to the invention, the adjusting mechanism is arranged, the sensor main bodies and the detection probes are arranged in a plurality of groups, and the positions of the sensor main bodies and the detection probes are adjusted by the rotating rod, so that the purpose that the device can detect different liquids is achieved, the versatility of the device is improved, in addition, the detachable shell is convenient to separate from the water drawing tank by arranging the clamping mechanism, and therefore, after the detection probes complete detection, the detection probes are convenient to clean, and the service life of the detection probes is prolonged.
Description
Technical Field
The invention relates to the technical field of sensor equipment, in particular to a chemical sensor.
Background
Chemical sensors (Chemical sensors) are instruments that sense various Chemical substances and convert their concentrations into electrical signals for detection, and the earliest electrochemical sensors dates back to the 50 th century, when used for oxygen monitoring. By the mid 80's of the 20 th century, small electrochemical sensors began to be used for the detection of a wide variety of toxic gases, solutions within the PEL range and showed good sensitivity and selectivity. In the chemical analysis of materials, different solutions and gases are often required to be detected, so that an electrochemical sensor is required.
In the prior art (No. CN201810433858.5), a high-precision electrochemical sensor convenient for liquid extraction includes an induction housing having a reaction chamber, a cover plate is disposed at an upper end of the induction housing, a suction hole is disposed at a lower end of the induction housing, three electrode plates made of different materials are disposed on the cover plate, the three electrode plates are connected to the cover plate and extend into the reaction chamber, a cross section of the reaction chamber is circular, three positioning grooves are annularly disposed on a wall of the reaction chamber, a fixing bracket is disposed on the positioning grooves, and two fixing plates disposed at 60 degrees are disposed on an inner side of the fixing bracket.
Above-mentioned patent is through setting up the negative pressure chamber, the absorption of the liquid that awaits measuring just can be realized to the pulling pull rod, thereby be convenient for the sensor to detect the liquid that awaits measuring, but because the chemical reagent variety that needs to detect is various, and sensor function is single, a sensor can only detect to a liquid, then need change the device when detecting other liquid, thereby the practicality of the device has been reduced, in addition because the device is the integration setting, be not convenient for dismantle the device, thereby can't clear up the sensor, because some chemical reagents have oxidability and corrosivity, if detect untimely clearance, cause the damage to the sensor easily, thereby the life of sensor has been reduced.
To this end, a chemical sensor is proposed.
Disclosure of Invention
The present invention is directed to a chemical sensor that solves the problems set forth above in the background.
In order to achieve the purpose, the invention provides the following technical scheme: a chemical sensor comprises a shell main body, wherein the central positions of the front end and the rear end of the inner surface of the shell main body are movably connected with an adjusting mechanism;
the adjusting mechanism comprises a movable block, a sensor body, a detection probe, a first gear, a second gear and a rotating rod, wherein the movable block is embedded and connected with a plurality of sensor bodies, one end of the sensor body, which is far away from the movable block, is fixedly connected with the detection probe, the rear end of the movable block is rotatably connected with the shell body through a bearing, the outer surface of the front end of the movable block is fixedly connected with the first gear, the center position of the front end of the first gear is rotatably connected with the shell body through a bearing, the right side of the first gear is engaged and connected with the second gear, the front end of the second gear is fixedly connected with the rotating rod, the front end of the rotating rod penetrates through the shell body and extends to the outside of the shell body, the rotating rod is rotatably connected with the shell body through a bearing, the lower end of the shell body is fixedly connected with a water drawing tank, and the center position of the inside of the water drawing tank is provided with a water drawing tank, the central position of the outer surface of the lower end of the water drawing tank is fixedly connected with a water drawing head, the lower end of one group of detection probes extends to the upper end position of the interior of the water drawing tank, two air holes are symmetrically formed in the front side and the rear side of the water drawing tank, two handles are symmetrically and fixedly connected with the outer surfaces of the front end and the rear end of the water drawing tank, the air holes extend to the interior of the handles, a negative pressure cavity is fixedly connected to the outer surface of one side of the handle close to the shell main body and is communicated with the air holes, a piston is slidably connected to one side of the interior of the negative pressure cavity close to the shell main body, a sliding rod is fixedly connected to the outer surface of one side of the piston close to the shell main body, one side of the sliding rod far away from the piston penetrates through the negative pressure cavity and is fixedly connected with a pressing block, a first spring is sleeved on the annular outer surface of the sliding rod, and one side of the first spring is fixedly connected with the pressing block, the other side of the first spring is fixedly connected with the negative pressure cavity.
The invention discloses a liquid detection device, which is characterized in that a negative pressure cavity is arranged, the liquid to be detected can be sucked by pulling a pull rod, so that the liquid to be detected can be detected by a sensor conveniently, but because various chemical reagents to be detected are provided, the function of the sensor is single, one sensor can only detect one liquid, and when other liquids are detected, a device needs to be replaced, so that the practicability of the device is reduced. The liquid detection device comprises a water suction head, a handle, a piston, a first spring, a detection probe, a plurality of groups of sensor bodies and detection probes, wherein the water suction head is placed in liquid to be detected, the handle is held and the pressing block is pressed to drive the piston to slide, the pressing block is released and can slide to an initial position under the action of the first spring, the pressing block is continuously pressed to enable the piston to reciprocate, gas in a negative pressure cavity, an air hole and a water suction groove is discharged, negative pressure is formed in the water suction groove, the liquid to be detected is sucked into the water suction groove and is in contact with the detection probe, and therefore the detection probe can conveniently detect the liquid.
Preferably, the lower end of the annular outer surface of the shell main body is movably connected with a clamping mechanism;
the clamping mechanism comprises a plurality of movable grooves, fixing rods, clamping plates, torsional springs, clamping grooves and inclined grooves, the movable grooves are formed in the lower end of the annular outer surface of the shell main body, the fixing rods are fixedly connected to the two ends of the inner surface of each movable groove, the clamping plates are connected to the outer surfaces of the fixing rods in a rotating mode, the two torsional springs are symmetrically and fixedly connected to the outer surfaces of the two ends of each clamping plate, one side, away from the clamping plates, of each torsional spring is fixedly connected with the corresponding fixing rod, the torsional springs are sleeved on the outer surfaces of the fixing rods, the clamping grooves are formed in the positions, close to the upper ends, of the annular outer surfaces of the water sucking tanks, the clamping grooves are clamped with the clamping plates, and the inclined grooves are formed in the positions, located at the upper ends of the clamping grooves, of the outer surfaces of the upper ends of the water sucking tanks.
When the device works, the device is integrally arranged, so that the device cannot be conveniently disassembled and the sensor cannot be cleaned, and because some chemical agents have oxidability and corrosivity, if the sensor cannot be cleaned timely, the sensor is easy to damage, so that the service life of the sensor is reduced. The water sucking tank is further slid to be separated from the shell main body, the clamping mechanism is arranged, the water sucking tank is detachably connected with the shell main body through the clamping of the clamping plate and the clamping groove, the shell can be detached from the water sucking tank, and therefore the detection probe can be conveniently cleaned after the detection probe is detected, the situation that the detection probe is corroded by chemical liquid and damaged due to untimely cleaning of the detection probe is prevented, and the service life of the detection probe is prolonged.
Preferably, the lower end of the annular outer surface of the shell main body is movably connected with a fastening mechanism;
the fastening mechanism comprises a moving ring, a supporting rod and a second spring, the supporting rod is movably connected to the position, close to the lower end of the clamping plate, in the moving ring, the supporting rod is abutted to the clamping plate, the second spring is sleeved on the annular outer surface of the supporting rod, one side of the second spring is fixedly connected with the supporting rod, and the other side of the second spring is fixedly connected with the moving ring.
When the water drawing box is needed to be disassembled, the clamping plates are pressed at the same time by the aid of the fastening mechanisms, the lower ends of the clamping plates are pressed by the pressing rods, so that the clamping plates are clamped with the clamping grooves more tightly, when the water drawing box is needed to be disassembled, the moving rings slide upwards to drive the pressing rods to slide, when the pressing rods slide to the upper ends of the clamping plates, the pressing rods can generate extrusion force on the clamping plates under the action of the second springs to enable the clamping plates to rotate, the lower ends of the clamping plates are separated from the clamping grooves, and the clamping plates are moved out of the water drawing box.
Preferably, the outer surface of the clamping plate is provided with a groove at a position close to the supporting rod, and the supporting rod and the groove are mutually attached in an arc structure.
When the water sucking box is in work, due to the fact that the fixing mechanism is lacked between the clamping plate and the resisting rod, the moving ring is easy to move, the resisting rod is driven to move to the upper end of the clamping plate, the clamping plate is enabled to rotate to be separated from the clamping groove, and therefore the situation that the water sucking box is separated from the shell main body is caused.
Preferably, the transversal regular hexagon structural design of personally submitting of movable block, test probe's quantity is six groups, six groups test probe evenly sets up in the side surface central point of movable block puts, six stoppers of the front end surface border position fixedly connected with of movable block, six the front end surface central point of stopper puts and has seted up the spacing groove, the inner surface front end of shell main part is close to upper end position fixedly connected with elasticity reed, it laminates each other to be the arc structure between the rear end of elasticity reed and the spacing groove.
When the water sucking tank is installed, the detection probe is driven to rotate to an accurate position by the rotation of the movable block, the elastic reed and the limiting groove are clamped with each other to limit the position of the movable block, and the situation that the detection probe is damaged due to the fact that the position of the detection probe is inaccurate and the detection probe is in contact with the inner wall of the water sucking tank when the water sucking tank is installed is prevented.
Preferably, the front end of the elastic reed is fixedly connected with a connecting block, the front end of the connecting block is in threaded connection with the shell main body, and anti-skid grains are formed in the outer surface of the connecting block.
When the elastic reed is deformed and needs to be replaced, the connecting block is rotated to separate the elastic reed from the shell main body and replace the new elastic reed, and the connecting block is connected with the shell main body through the threads, so that the reed with good elasticity can be conveniently detached and replaced, and the situation that the elastic reed is easily deformed and affects the limiting effect on the movable block in the long-term use process is prevented.
Compared with the prior art, the invention has the beneficial effects that:
the device comprises a shell, a water sucking tank, a shell body, a clamping plate, a clamping groove, a regulating mechanism, a clamping plate and a clamping groove, wherein the shell body is provided with a water sucking tank, the clamping plate is arranged on the shell body, the shell body is provided with a clamping groove, the clamping groove is arranged on the shell body, the shell body is provided with a clamping plate, the clamping plate is provided with a clamping groove, the clamping plate is provided with a clamping plate, the clamping groove is provided with a clamping groove, the shell body is provided with a clamping plate, the clamping plate is provided with a clamping groove, the clamping plate is detachably connected with the shell body, the shell body is separated from the water sucking tank, the detection probe is convenient to clean after the detection probe is finished, the situation that the detection probe is corroded by chemical liquid to damage is avoided due to untimely cleaning of the detection probe is prevented, and the service life of the detection probe is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the main body of the housing of the present invention;
FIG. 3 is a sectional view of the housing body and the water drawing tank according to the present invention;
FIG. 4 is a sectional view of the suction box and the handle in combination according to the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 3 at A according to the present invention;
FIG. 6 is a combined cross-sectional view of a clamping plate and a fixing rod of the present invention.
In the figure: 1. a housing main body; 11. a water drawing tank; 12. a water drawing tank; 13. air holes; 14. a handle; 15. a negative pressure chamber; 16. a piston; 17. a slide bar; 18. a pressing block; 19. a first spring; 10. a water-drawing head; 2. an adjustment mechanism; 21. a movable block; 22. a sensor body; 23. detecting a probe; 24. a first gear; 25. a second gear; 26. a rotating rod; 27. a limiting block; 28. a limiting groove; 29. an elastic reed; 211. connecting blocks; 3. a clamping mechanism; 31. a movable groove; 32. fixing the rod; 33. clamping a plate; 34. a torsion spring; 35. a card slot; 36. a chute; 4. a fastening mechanism; 41. a moving ring; 42. a support rod; 43. a second spring; 44. and (4) a groove.
Detailed Description
The invention now will be described in connection with a few, but not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, the present invention provides a chemical sensor, which comprises:
a chemical sensor, as shown in fig. 1 to 4, comprises a housing body 1, wherein the central positions of the front end and the rear end of the inner surface of the housing body 1 are movably connected with an adjusting mechanism 2;
the adjusting mechanism 2 comprises a movable block 21, a sensor main body 22, a detection probe 23, a first gear 24, a second gear 25 and a rotating rod 26, wherein the movable block 21 is embedded in the sensor main body 22, the sensor main body 22 is far away from the one end of the movable block 21 and fixedly connected with the detection probe 23, the rear end of the movable block 21 is rotatably connected with the shell main body 1 through a bearing, the outer surface of the front end of the movable block 21 is fixedly connected with the first gear 24, the center position of the front end of the first gear 24 is rotatably connected with the shell main body 1 through a bearing, the right side of the first gear 24 is meshed with the second gear 25, the front end of the second gear 25 is fixedly connected with the rotating rod 26, the front end of the rotating rod 26 penetrates through the shell main body 1 and extends to the outside of the shell main body 1, and the rotating rod 26 is rotatably connected with the shell main body 1 through a bearing, the lower end of the shell body 1 is fixedly connected with a water drawing tank 11, the inner center of the water drawing tank 11 is provided with a water drawing tank 12, the outer surface center of the lower end of the water drawing tank 11 is fixedly connected with a water drawing head 10, the lower end of one group of detection probes 23 extends to the inner upper end of the water drawing tank 12, two air holes 13 are symmetrically formed in the front side and the rear side of the water drawing tank 11, two handles 14 are symmetrically and fixedly connected to the positions, located at the air holes 13, of the outer surfaces of the front end and the rear end of the water drawing tank 11, the air holes 13 extend to the inner parts of the handles 14, a negative pressure cavity 15 is fixedly connected to the outer surface of one side, close to the shell body 1, of the handles 14, the negative pressure cavity 15 is communicated with the air holes 13, a piston 16 is slidably connected to one side, close to the shell body 1, of the piston 16 is fixedly connected with a sliding rod 17, one side, far away from the piston 16, of the sliding rod 17 penetrates through the negative pressure cavity 15 and is fixedly connected with a pressing block 18, a first spring 19 is sleeved on the annular outer surface of the sliding rod 17, one side of the first spring 19 is fixedly connected with the pressing block 18, and the other side of the first spring 19 is fixedly connected with the negative pressure cavity 15.
In the prior art, the negative pressure cavity 15 is arranged, the liquid to be detected can be sucked by pulling the pull rod, so that the sensor can detect the liquid to be detected conveniently, but because various chemical reagents to be detected are available, the sensor has a single function, one sensor can only detect one liquid, and when other liquids are detected, the device needs to be replaced, so that the practicability of the device is reduced, by arranging the adjusting mechanism 2, when different liquids need to be detected, the rotating rod 26 is rotated to drive the second gear 25 to rotate, the second gear 25 drives the first gear 24 to rotate, the movable block 21 is rotated, the sensor main body 22 and the detection probe 23 are finally driven to rotate, the sensor probe matched with the liquid to be detected is rotated to the lower end, the water drawing tank 11 is connected with the shell main body 1, and the lower end of the detection probe 23 extends to the inside the water drawing tank 12, the water drawing head 10 is put into the liquid to be measured, the handle 14 is held and the pressing block 18 is pressed to drive the piston 16 to slide, the pressing block 18 is released, the pressing block 18 slides to the initial position under the action of the first spring 19, the pressing block 18 is continuously pressed, thereby making the piston 16 reciprocate back and forth, discharging the gas in the negative pressure cavity 15, the air hole 13 and the water drawing tank 12, forming a negative pressure in the water drawing tank 12, sucking the liquid to be detected into the water drawing tank 12 and contacting with the detection probe 23, thereby facilitating the detection of the liquid by the detection probe 23, the invention, by arranging the adjusting mechanism 2, and by arranging a plurality of groups of sensor bodies 22 and detection probes 23, the positions of the sensor bodies 22 and the detection probes 23 are adjusted by utilizing a rotating rod 26, therefore, the purpose that the device can detect different liquids is achieved, and the versatility of the device is improved.
As an embodiment of the present invention, as shown in fig. 3, 5 and 6, the lower end of the annular outer surface of the housing main body 1 is movably connected with a clamping mechanism 3;
the clamping mechanism 3 comprises a plurality of movable grooves 31, fixing rods 32, clamping plates 33, torsion springs 34, clamping grooves 35 and inclined grooves 36, the movable grooves 31 are arranged at the lower ends of the annular outer surfaces of the shell main bodies 1, the fixing rods 32 are fixedly connected to the two ends of the inner surfaces of the movable grooves 31, the clamping plates 33 are rotatably connected to the outer surfaces of the fixing rods 32, the two torsion springs 34 are symmetrically and fixedly connected to the outer surfaces of the two ends of the clamping plates 33, one sides, far away from the clamping plates 33, of the torsion springs 34 are fixedly connected with the fixing rods 32, the torsion springs 34 are sleeved on the outer surfaces of the fixing rods 32, the clamping grooves 35 are formed in the positions, close to the upper ends, of the annular outer surfaces of the water sucking tanks 11, the clamping grooves 35 are clamped with the clamping plates 33, and the inclined grooves 36 are formed in the positions, located at the upper ends of the outer surfaces of the upper ends of the water sucking tanks 11.
When the device is in work, the device in the comparison patent is integrally arranged, so that the device is not convenient to disassemble, the sensor cannot be cleaned, and because some chemical agents have oxidizability and corrosiveness, if the sensor cannot be cleaned in time, the sensor is easy to damage, so that the service life of the sensor is reduced, by arranging the clamping mechanism 3, when the water sucking tank 11 and the shell main body 1 need to be connected, the shell main body 1 is butted with the water sucking tank 11 and is jointed with the water sucking tank 11, when the clamping plate 33 is contacted with the inclined groove 36, the clamping plate 33 rotates, the torsion spring 34 deforms, the shell main body 1 is continuously moved, the clamping plate 33 is moved to correspond to the position of the clamping groove 35, the clamping plate 33 rotates to the initial position under the action of the torsion spring 34 and is clamped with the clamping groove 35, so that the water sucking tank 11 is connected with the shell main body 1, and during disassembly, according to the invention, the clamping mechanism 3 is arranged, the water drawing tank 11 is detachably connected with the shell main body 1 through mutual clamping of the clamping plate 33 and the clamping groove 35, and the shell can be detached from the water drawing tank 11, so that the detection probe 23 can be cleaned conveniently after the detection is finished by the detection probe 23, the situation that the detection probe 23 is damaged due to corrosion of chemical liquid because the detection probe 23 is not cleaned timely is prevented, and the service life of the detection probe 23 is prolonged.
As an embodiment of the present invention, as shown in fig. 3 and 5, a fastening mechanism 4 is movably connected to a lower end of the annular outer surface of the housing main body 1;
the fastening mechanism 4 comprises a moving ring 41, a resisting rod 42 and a second spring 43, the resisting rod 42 is movably connected to a position, close to the lower end of the clamping plate 33, inside the moving ring 41, the resisting rod 42 is mutually abutted with the clamping plate 33, the second spring 43 is sleeved on the annular outer surface of the resisting rod 42, one side of the second spring 43 is fixedly connected with the resisting rod 42, and the other side of the second spring 43 is fixedly connected with the moving ring 41.
When the water drawing tank 11 needs to be disassembled, the clamping plates 33 need to be pressed simultaneously, so that the operation difficulty is increased, and inconvenience is brought to a user, the fastening mechanism 4 is arranged, the lower ends of the clamping plates 33 are pressed by the abutting rods 42, so that the clamping plates 33 are clamped with the clamping grooves 35 more tightly, when the water drawing tank 11 needs to be disassembled, the moving ring 41 slides upwards to drive the abutting rods 42 to slide, when the abutting rods 42 slide to the upper ends of the clamping plates 33, the abutting rods 42 generate extrusion force to the clamping plates 33 under the action of the second springs 43, so that the clamping plates 33 rotate, the lower ends of the clamping plates 33 are separated from the clamping grooves 35, and the water drawing tank 11 is moved out, the fastening mechanism 4 is arranged, so that the groups of the clamping plates 33 can rotate and are separated from the clamping grooves 35 by moving the moving ring 41 upwards, the operation difficulty is reduced, and the use by a user is facilitated.
As an embodiment of the present invention, as shown in fig. 5, a groove 44 is formed on the outer surface of the clamping plate 33 near the supporting rod 42, and the supporting rod 42 and the groove 44 are attached to each other in an arc structure.
During operation, due to the lack of a fixing mechanism between the clamping plate 33 and the supporting rod 42, the moving ring 41 is easy to move, the supporting rod 42 is driven to move to the upper end of the clamping plate 33, the clamping plate 33 is enabled to rotate to be separated from the clamping groove 35, and then the situation that the water drawing tank 11 is separated from the shell main body 1 occurs.
As an embodiment of the present invention, as shown in fig. 2 and 4, the cross section of the movable block 21 is designed to be a regular hexagon structure, the number of the detection probes 23 is six, the six groups of detection probes 23 are uniformly arranged at the center position of the side surface of the movable block 21, six limit blocks 27 are fixedly connected to the edge position of the outer surface of the front end of the movable block 21, limit grooves 28 are formed at the center positions of the outer surfaces of the front ends of the six limit blocks 27, an elastic spring 29 is fixedly connected to the position, close to the upper end, of the front end of the inner surface of the housing main body 1, and the rear ends of the elastic spring 29 and the limit grooves 28 are attached to each other in an arc structure.
When the water sucking tank 11 is installed, the detection probe 23 is in contact with the inner wall of the water sucking groove 12 to cause damage to the detection probe 23, and the elastic reed 29 and the limiting groove 28 are arranged, so that when the detection probe 23 is driven to rotate to the accurate position by the rotation of the movable block 21, the elastic reed 29 and the limiting groove 28 are clamped with each other to limit the position of the movable block 21, and the situation that the detection probe 23 is in contact with the inner wall of the water sucking groove 12 to cause damage to the detection probe 23 due to the inaccurate position of the detection probe 23 is prevented.
As an embodiment of the present invention, as shown in fig. 4, a connection block 211 is fixedly connected to a front end of the elastic spring 29, the front end of the connection block 211 is screwed with the housing body 1, and an outer surface of the connection block 211 is provided with anti-slip threads.
When the elastic reed 29 works, because the elastic reed 29 has certain elasticity, the elastic reed 29 can contact with the limiting block 27 and generate elastic deformation before being clamped with the limiting groove 28, and the elastic reed replacement is easy to deform in the long-term use process so as to influence the limiting effect on the movable block 21.
The working principle is as follows: by arranging the adjusting mechanism 2, when different liquids need to be detected, firstly, the second gear 25 is driven to rotate by rotating the rotating rod 26, the second gear 25 drives the first gear 24 to rotate, the movable block 21 rotates, finally, the sensor main body 22 and the detection probe 23 are driven to rotate, the sensor probe matched with the liquid to be detected is rotated to the lower end, the water drawing tank 11 is connected with the shell main body 1, the lower end of the detection probe 23 extends to the inside of the water drawing tank 12, the water drawing head 10 is placed in the liquid to be detected, the handle 14 is held and the pressing block 18 is pressed, the piston 16 is driven to slide, the pressing block 18 is released, the pressing block 18 slides to the initial position under the action of the first spring 19, the pressing block 18 is continuously pressed, so that the piston 16 makes reciprocating motion, and the gas in the negative pressure cavity 15, the air hole 13 and the water drawing tank 12 is discharged, so as to form negative pressure in the water drawing tank 12, suck the liquid to be detected into the water drawing tank 12 and contact with the detection probe 23, so as to facilitate the detection of the liquid by the detection probe 23, and the clamping mechanism 3 is arranged to butt the housing main body 1 and the water drawing tank 11 when the water drawing tank 11 and the housing main body 1 need to be connected, and the two are jointed, when the clamping plate 33 contacts with the inclined groove 36, the clamping plate 33 rotates, the torsion spring 34 deforms, the housing main body 1 continues to move, the clamping plate 33 moves to a position corresponding to the clamping groove 35, the clamping plate 33 rotates to an initial position under the action of the torsion spring 34 and is clamped with the clamping groove 35, therefore, the water drawing tank 11 is connected with the shell body 1, when the water drawing tank is detached, the upper end of the clamping plate 33 is pressed to enable the clamping plate 33 to rotate and be separated from the clamping groove 35, and then the water drawing tank 11 is slid to be separated from the shell body 1.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A chemical sensor comprising a housing body (1), characterized in that: the central positions of the front end and the rear end of the inner surface of the shell main body (1) are movably connected with an adjusting mechanism (2);
the adjusting mechanism (2) comprises a movable block (21), a sensor main body (22), a detection probe (23), a first gear (24), a second gear (25) and a rotating rod (26), wherein the sensor main body (21) is embedded into the sensor main body (22), the sensor main body (22) is far away from one end of the movable block (21) and fixedly connected with the detection probe (23), the rear end of the movable block (21) is rotatably connected with the shell main body (1) through a bearing, the front end outer surface of the movable block (21) is fixedly connected with the first gear (24), the front end center position of the first gear (24) is rotatably connected with the shell main body (1) through a bearing, the right side of the first gear (24) is meshed with the second gear (25), the front end of the second gear (25) is fixedly connected with the rotating rod (26), the front end of the rotating rod (26) penetrates through the shell main body (1) and extends to the outside of the shell main body (1), the rotary rod (26) is rotatably connected with the shell body (1) through a bearing, the lower end of the shell body (1) is fixedly connected with a water sucking tank (11), a water sucking groove (12) is formed in the center of the interior of the water sucking tank (11), a water sucking head (10) is fixedly connected with the center of the outer surface of the lower end of the water sucking tank (11), the lower end of a group of detection probes (23) extends to the upper end of the interior of the water sucking groove (12), two air holes (13) are symmetrically formed in the inner portions of the front side and the rear side of the water sucking tank (11), two handles (14) are symmetrically and fixedly connected with the outer surfaces of the front end and the rear end of the water sucking tank (11) at the positions of the air holes (13), the air holes (13) extend to the inner portions of the handles (14), a cavity (15) is fixedly connected with the outer surface of one side, close to the shell body (1), of the handle (14), and the negative pressure cavity (15) is communicated with the air holes (13), the inside one side sliding connection who is close to shell subject (1) in negative pressure chamber (15) has piston (16), piston (16) are close to one side surface fixed connection slide bar (17) of shell subject (1), one side that piston (16) were kept away from in slide bar (17) runs through negative pressure chamber (15) and fixedly connected with presses piece (18), first spring (19) have been cup jointed to the annular surface of slide bar (17), one side and the pressing piece (18) fixed connection of first spring (19), the opposite side and negative pressure chamber (15) fixed connection of first spring (19).
2. A chemical sensor according to claim 1, wherein: the lower end of the annular outer surface of the shell main body (1) is movably connected with a clamping mechanism (3);
clamping mechanism (3) includes a plurality of activity groove (31), dead lever (32), cardboard (33), torsional spring (34), draw-in groove (35) and chute (36), a plurality of activity groove (31) are seted up in the annular surface lower extreme of shell main part (1), the internal surface both ends fixedly connected with dead lever (32) of activity groove (31), the surface rotation of dead lever (32) is connected with cardboard (33), two torsional springs (34) of both ends surface symmetry fixedly connected with of cardboard (33), one side and dead lever (32) fixed connection of cardboard (33) are kept away from in torsional spring (34), torsional spring (34) cup joint in dead lever (32) surface, draw the annular surface of water tank (11) and be close to the position of upper end and seted up draw-in groove (35), draw-in groove (35) and cardboard (33) mutual block, the position that the upper end surface of water tank (11) is located draw-in groove (35) upper end has seted up chute (36) ).
3. A chemical sensor according to claim 2, wherein: the lower end of the annular outer surface of the shell main body (1) is movably connected with a fastening mechanism (4);
the fastening mechanism (4) comprises a moving ring (41), a supporting rod (42) and a second spring (43), the supporting rod (42) is movably connected to the position, close to the lower end of the clamping plate (33), in the moving ring (41), the supporting rod (42) is abutted to the clamping plate (33), the second spring (43) is sleeved on the annular outer surface of the supporting rod (42), one side of the second spring (43) is fixedly connected with the supporting rod (42), and the other side of the second spring (43) is fixedly connected with the moving ring (41).
4. A chemical sensor according to claim 3, wherein: a groove (44) is formed in the position, close to the supporting rod (42), of the outer surface of the clamping plate (33), and the supporting rod (42) and the groove (44) are attached to each other in an arc-shaped structure.
5. A chemical sensor according to claim 1, wherein: the transversal regular hexagon structural design of personally submitting of movable block (21), the quantity of test probe (23) is six groups, six groups test probe (23) evenly sets up in the side surface central point of movable block (21) and puts, six stopper (27) of the front end surface edge fixedly connected with of movable block (21), six spacing groove (28) have been seted up to the front end surface central point of stopper (27), the internal surface front end of shell main part (1) is close to upper end fixed connection elasticity reed (29), it laminates each other to be the arc structure between the rear end of elasticity reed (29) and spacing groove (28).
6. A chemical sensor according to claim 5, wherein: the front end fixedly connected with connecting block (211) of elasticity reed (29), threaded connection between the front end of connecting block (211) and housing body (1), anti-skidding line has been seted up to the surface of connecting block (211).
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| CN202110914333.5A CN113686941A (en) | 2021-08-10 | 2021-08-10 | Chemical sensor |
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| CN202110914333.5A CN113686941A (en) | 2021-08-10 | 2021-08-10 | Chemical sensor |
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