CN111307882A - Humidity sensor - Google Patents
Humidity sensor Download PDFInfo
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- CN111307882A CN111307882A CN202010183726.9A CN202010183726A CN111307882A CN 111307882 A CN111307882 A CN 111307882A CN 202010183726 A CN202010183726 A CN 202010183726A CN 111307882 A CN111307882 A CN 111307882A
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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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
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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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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Abstract
The invention belongs to the technical field of sensors, and particularly relates to a humidity sensor which comprises a sensor main body, a detecting head main body and a safety protection movable support assembly, wherein the safety protection movable support assembly comprises a bottom plate, side vertical plates and a top fixing plate, and supporting plates are fixed on the inner sides of the two side vertical plates; the left end and the right end of the sensor main body are respectively fixed with a mounting bar, and the opposite surfaces of the side vertical plates are respectively fixed with a bracket assembly; a pressing component is fixed on the lower surface of the top plate; the invention is convenient to use and move, can finish the detection work by one person, greatly reduces the waste of manpower and financial resources and is more convenient to use; meanwhile, the safety protection movable support assembly plays a safety protection role in the sensor main body when being convenient for realizing stable movement of the sensor main body, and the sensor main body is convenient to install and disassemble, is stable to install and is favorable for smooth later-stage detection.
Description
Technical Field
The invention belongs to the technical field of sensors, and particularly relates to a humidity sensor.
Background
The moisture sensitive element is the simplest humidity sensor. The humidity sensitive element is mainly composed of resistance type and capacitance type, and is characterized by that a layer of film made of humidity sensitive material is covered on the substrate, when the water vapour in the air is adsorbed on the humidity sensitive film, the resistivity and resistance value of the element are changed, and the humidity can be measured by using this characteristic.
The existing soil humidity sensor generally comprises a wall-mounted humidity sensor used in a laboratory and a movable humidity sensor, most of movable portable humidity sensors usually need more than two measuring personnel to perform correct measurement, great manpower and material resources are additionally consumed, the safety of the humidity sensor is difficult to guarantee, and the measurement accuracy is reduced to a great extent.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a humidity sensor.
The technical scheme adopted by the invention for solving the technical problems is as follows: a humidity sensor comprises a sensor main body and a detecting head main body, wherein a data output connecting terminal and a power line connecting terminal are respectively embedded in the lower portion of the sensor main body, the data output connecting terminal is connected with the detecting head main body through a connecting wire, a plurality of metal detecting heads are embedded in the detecting head main body, a display screen and a control key are respectively embedded in the front side surface of the sensor main body, the humidity sensor further comprises a safety protection mobile support assembly, the safety protection mobile support assembly comprises a bottom plate, two side vertical plates which are oppositely fixed at the two ends of the top of the bottom plate and top plates which are fixed at the top ends of the inner sides of the two side vertical plates, a support plate is further fixed on the inner sides of the two side vertical plates, the sensor main body is placed on the support plate, and moving; mounting bars are respectively fixed at the left end and the right end of the sensor main body, and bracket assemblies matched with the mounting bars are respectively fixed on the opposite surfaces of the side vertical plates; a pressing component is fixed on the surface of the lower part of the top plate and is positioned right above the sensor main body;
the supporting plate is respectively provided with through holes corresponding to the power line connecting terminal and the data output connecting terminal; the inner wall of each perforation is fixedly connected with a diaphragm; a cavity is formed in the diaphragm; the upper surface of the supporting plate is fixedly connected with a squeezing bag; the extrusion bag is communicated with the cavity through the guide groove; the surface of the supporting plate is provided with an opening; the opening is communicated with the guide groove, and a rubber plug is plugged in the opening; when the sensor is used outdoors, the sensor main body is usually placed on the supporting plate, the power line connecting terminal and the data output connecting terminal on the sensor main body are respectively and correspondingly perforated, and the bracket assemblies on the two sides are used for stabilizing the mounting strips at the left end and the right end of the sensor main body, so that the pressing assembly clamps the top end of the sensor main body; in the installation process of the sensor main body, the sensor main body extrudes the extrusion bag, so that the extrusion bag contracts, the diaphragm expands to clamp a connecting wire connected with the power wire connecting terminal and the data output connecting terminal, the connecting wire is effectively prevented from being pulled to cause the loosening of the power wire connecting terminal and the data output connecting terminal in the shaking process of the connecting wire and influence the measurement result, meanwhile, the extrusion bag buffers the sensor main body, the vibration generated in the use process of the sensor main body is effectively avoided, the operation of some components in the sensor main body is influenced, the service life of the sensor main body is effectively prolonged, after the sensor main body is installed, the sensor main body and the data output connecting terminal are connected through the connecting wire, the metal detector is inserted into soil to be detected, the control key selects the current working mode, and the humidity of the currently detected soil can be displayed, when the power line connecting terminal and the data output connecting terminal need to be detached, the rubber plug is pulled out, so that gas in the cavity of the diaphragm is released, and the power line connecting terminal and the data output connecting terminal are pulled out, so that the device is convenient and fast.
Preferably, the bracket assembly comprises an outer clamping plate and an inner supporting plate, a bracket capable of accommodating the mounting bar is arranged on the inner supporting plate, a first connecting block is fixed on the surface of the lower part of the outer clamping plate, two second connecting blocks distributed at intervals are fixed on the surface of the upper part of the inner supporting plate, a gap capable of accommodating the first connecting block is formed between the two second connecting blocks, and the first connecting block is rotatably connected with the second connecting blocks; two ends of the lower surface of the outer clamping plate are respectively fixed with a first suction block, and two ends of the upper surface of the inner supporting plate are respectively fixed with a second suction block; the first attraction block and the second attraction block are both permanent magnets; the during operation opens outer cardboard earlier, corresponds the mounting bar and places in holding in the palm the groove, and the outer cardboard of reclosing can, after closing outer cardboard, the mutual actuation of second actuation piece on first actuation piece on the outer cardboard and the interior layer board realizes the stable equipment of outer cardboard and interior layer board.
Preferably, the lower surface of the outer clamping plate is fixedly connected with a rubber layer; the rubber layer is wrapped on the first absorbing block; during operation, through the setting on rubber layer, in the stable equipment in-process of outer cardboard and inner support board, can further cushion the sensor main part, effectively avoid taking place vibrations in the sensor main part use, influence some components and parts functions in the sensor main part to effectively improve the life of sensor main part.
Preferably, the pressing assembly comprises a fixed rod, a movable rod and a telescopic spring, an installation sheet is fixed at the top end of the fixed rod, and the fixed rod is fixed on the top plate through the installation sheet; the bottom end of the fixed rod is provided with a movable groove for embedding the end part of the movable rod, the top end of the movable rod can be embedded into the movable groove in a vertically reciprocating manner, the bottom end of the movable rod extends out of the movable groove, and the telescopic springs are distributed between the end surface of the top end of the movable rod and the groove top wall of the movable groove; a pressing plate is fixed at the bottom end of the movable rod, and a pressing opening capable of being clamped at the top of the sensor main body is formed in the surface of the lower portion of the pressing plate; during operation, the elastic action of the telescopic spring is utilized to enable the movable rod to move downwards stably, the pressing plate at the end of the movable rod is clamped at the top end of the sensor main body through the pressing port, the stability of the sensor main body is guaranteed, and the stability of the movable rod can be guaranteed through the limiting sliding block, the limiting sliding groove and the safety limiting block.
Preferably, two limiting sliding grooves which are distributed oppositely are formed in the side wall of the movable groove, a limiting sliding block corresponding to the limiting sliding grooves is fixed on the outer surface of the embedding end of the movable rod, and a safety limiting block is fixed on the inner side of a port of each limiting sliding groove.
Preferably, an extrusion air bag is fixedly connected between the limiting slide block and the limiting block; an annular groove is formed in the side wall of the pressing plate at the pressing opening; an expansion bag is fixedly connected in the annular groove; the inflated balloon annular design; a detention groove is formed in the movable rod; the left side and the right side of the detention groove are designed in an arc shape; the extrusion air bag is communicated with the detention groove; the detention groove is connected with a control column in a sliding way; one end of the control column is positioned in the retention groove and fixedly connected with a spring between the retention groove and the inner wall of the retention groove, the other end of the control column extends to the pressure port, and the control column is designed in a spherical surface mode at one end of the pressure port; a circulation groove is formed in the pressing plate; the circulation groove is communicated with the expansion bag and the detention groove, and the communication part of the circulation groove and the detention groove is positioned on the periphery of the control column; the surface of one end of the control column, which is positioned in the detention groove, is wrapped with a sealing gasket, and the control column can seal and open the flow through groove by moving; the during operation, the movable rod steadily moves down the in-process, extrusion gasbag, thereby make the gaseous entering in the extrusion gasbag delay the groove, make and delay inslot gas pressure and rise, pass through the pressure port centre gripping in the top in-process of sensor main part when the clamp plate, sensor main part top extrusion control post, make the control post slide to delaying in the groove, the extrusion spring, thereby two make sealed the pad open the circulation groove, make and delay inslot gas through circulation groove flow to the expansion capsule in, thereby make the expansion capsule inflation, further press from both sides tight sensor main part, realize the multiple fixed of sensor main part, further improve the stability of sensor main part.
The invention has the following beneficial effects:
1. according to the humidity sensor, the safety protection movable support assembly is used for conveniently realizing stable movement of the sensor main body and playing a safety protection role on the sensor main body, the sensor main body is convenient to mount and dismount, the mounting is stable, and the subsequent detection work can be smoothly carried out.
2. According to the humidity sensor, in the installation process of the sensor main body, the sensor main body extrudes the extrusion bag, so that the extrusion bag contracts, the diaphragm expands to clamp the connecting wire connected with the power wire connecting terminal and the data output connecting terminal, the connecting wire is effectively prevented from being pulled, the power wire connecting terminal and the data output connecting terminal are loosened in the shaking process of the connecting wire, the measuring result is influenced, meanwhile, the extrusion bag buffers the sensor main body, the phenomenon that the sensor main body vibrates in the use process and the operation of some components in the sensor main body is influenced is effectively avoided, and therefore the service life of the sensor main body is effectively prolonged.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic perspective view of the bracket assembly of the present invention;
FIG. 4 is a front cross-sectional structural schematic view of the hold-down assembly of the present invention;
FIG. 5 is a schematic diagram of the principles of the present invention;
in the figure: 1. a sensor body; 2. a probe head body; 3. a display screen; 4. a control key; 5. mounting a bar; 6. a power line connection terminal; 7. a data output connection terminal; 8. a metal probe head; 9. a safety protection mobile support assembly; 10. a side vertical plate; 11. a top plate; 12. a compression assembly; 13. a bracket assembly; 14. perforating; 15. a base plate; 16. a moving wheel; 17. a support plate; 18. an outer clamping plate; 19. an inner support plate; 20. a first connection block; 21. a second connecting block; 22. a bracket; 23. a first absorption block; 24. a second suction block; 25. mounting a sheet; 26. fixing the rod; 27. a movable rod; 28. pressing a plate; 29. pressing a port; 30. a movable groove; 31. a tension spring; 32. a limiting slide block; 33. a limiting chute; 34. a safety stopper; 35. a diaphragm; 36. extruding the bag; 37. a rubber plug; 38. a rubber layer; 39. extruding the air bag; 40. an annular groove; 41. an inflation bladder; 42. a retention tank; 43. a control column; 44. and a gasket.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 and 5, the humidity sensor according to the present invention includes a sensor body 1 and a probe body 2, a data output connection terminal 7 and a power line connection terminal 6 are respectively embedded in a lower portion of the sensor body 1, the data output connection terminal 7 is connected to the probe body 2 through a connection line, a plurality of metal probes 8 are embedded in the probe body 2, a display 3 and a control button 4 are respectively embedded in a front side of the sensor body 1, and a safety protection mobile support assembly 9 is further included, the safety protection mobile support assembly 9 includes a bottom plate 15, two side vertical plates 10 oppositely fixed at two ends of a top of the bottom plate 15, and a top plate 11 fixed at top ends of inner sides of the two side vertical plates 10, a support plate 17 is further fixed on inner sides of the two side vertical plates 10, the sensor body 1 is placed on the support plate 17, four corners of the bottom plate 15 are respectively fixed with a movable wheel 16; mounting bars 5 are respectively fixed at the left end and the right end of the sensor main body 1, and bracket assemblies 13 matched with the mounting bars 5 are respectively fixed on the opposite surfaces of the side vertical plates 10; a pressing component 12 is fixed on the lower surface of the top plate 11, and the pressing component 12 is positioned right above the sensor body 1;
the support plate 17 is provided with through holes 14 corresponding to the power line connecting terminal 6 and the data output connecting terminal 7 respectively; the inner wall of each perforation 14 is fixedly connected with a diaphragm 35; a cavity is formed in the diaphragm 35; the upper surface of the supporting plate 17 is fixedly connected with a squeezing bag 36; the extrusion bag 36 is communicated with the cavity through a guide groove; the surface of the supporting plate 17 is provided with an opening; the opening is communicated with the guide groove design, and a rubber plug 37 is plugged in the opening; during working, for some applicable occasions, such as outdoor use, the sensor body 1 is usually placed on the supporting plate 17, the power line connecting terminal 6 and the data output connecting terminal 7 on the sensor body 1 are respectively corresponding to the through hole 14, and the bracket components 13 on the two sides are used for stabilizing the mounting strips 5 at the left end and the right end of the sensor body 1, so that the pressing components 12 clamp the top end of the sensor body 1; in the installation process of the sensor body 1, the sensor body 1 extrudes the extrusion bag 36, so that the extrusion bag 36 contracts, the diaphragm 35 expands to clamp a connecting wire connected with the power wire connecting terminal 6 and the data output connecting terminal 7, the connecting wire is effectively prevented from being pulled to cause the looseness of the power wire connecting terminal 6 and the data output connecting terminal 7 in the shaking process of the connecting wire and influence the measurement result, meanwhile, the extrusion bag 36 buffers the sensor body 1, the vibration generated in the use process of the sensor body 1 is effectively avoided, the operation of some components in the sensor body 1 is influenced, so that the service life of the sensor body 1 is effectively prolonged, after the sensor body 1 is installed, the probe body 2 and the data output connecting terminal 7 are connected through the connecting wire, and the metal probe 8 is inserted into soil to be detected, control button 4 selects current mode, can show the humidity of current detection soil through display screen 3, when power cord connecting terminal 6 and data output connecting terminal 7 need demolish, through extracting rubber buffer 37, makes the interior gas of cavity of diaphragm 35 emit, extract power cord connecting terminal 6 and data output connecting terminal 7 can, convenient and fast.
As an embodiment of the present invention, the bracket assembly 13 includes an outer clamping plate 18 and an inner supporting plate 19, a bracket 22 capable of accommodating the mounting bar 5 is disposed on the inner supporting plate 19, a first connecting block 20 is fixed on a lower surface of the outer clamping plate 18, two second connecting blocks 21 are fixed on an upper surface of the inner supporting plate 19, the two second connecting blocks 21 are spaced apart from each other, a gap capable of accommodating the first connecting block 20 is formed between the two second connecting blocks 21, and the first connecting block 20 is rotatably connected to the second connecting blocks 21; two ends of the lower surface of the outer clamping plate 18 are respectively fixed with a first absorption block 23, and two ends of the upper surface of the inner supporting plate 19 are respectively fixed with a second absorption block 24; the first absorption block 23 and the second absorption block 24 are both permanent magnets; during operation, open outer cardboard 18 earlier, place the mounting bar 5 correspondence in bracket 22, close outer cardboard 18 again can, after closing outer cardboard 18, first suction block 23 on the outer cardboard 18 and the mutual actuation of second suction block 24 on the inner backing plate 19 realize outer cardboard 18 and the stable equipment of inner backing plate 19.
As an embodiment of the present invention, the lower surface of the outer clamping plate 18 is fixedly connected with a rubber layer 38; the rubber layer 38 is arranged to wrap the first absorbing block 23; during operation, through the setting of rubber layer 38, in the stable equipment process of outer cardboard 18 and inner supporting plate 19, can further cushion sensor main part 1, effectively avoid taking place vibrations in the use of sensor main part 1, influence some components and parts operations in the sensor main part 1 to effectively improve sensor main part 1's life.
As an embodiment of the present invention, the pressing assembly 12 includes a fixed rod 26, a movable rod 27 and a telescopic spring 31, a mounting piece 25 is fixed at the top end of the fixed rod 26, and the fixed rod 26 is fixed on the top plate 11 through the mounting piece 25; the bottom end of the fixed rod 26 is provided with a movable groove 30 for the end of the movable rod 27 to be embedded in, the top end of the movable rod 27 can be embedded in the movable groove 30 in a reciprocating manner up and down, the bottom end of the movable rod 27 extends out of the movable groove 30, and the expansion spring 31 is distributed between the end surface of the top end of the movable rod 27 and the groove top wall of the movable groove 30; a pressing plate 28 is fixed at the bottom end of the movable rod 27, and a pressing opening 29 capable of being clamped at the top of the sensor main body 1 is formed in the lower surface of the pressing plate 28; during operation, the elastic action of the extension spring 31 is utilized to enable the movable rod 27 to move downwards stably, the pressing plate 28 at the end of the movable rod is clamped at the top end of the sensor main body 1 through the pressing opening 29, the stability of the sensor main body 1 is guaranteed, and the limiting slide block 32, the limiting slide groove 33 and the safety limiting block 34 can guarantee the stability of the movable rod 27 in movement.
As an embodiment of the present invention, two limiting sliding grooves 33 are formed on the side wall of the movable groove 30, the two limiting sliding grooves 33 are distributed oppositely, a limiting sliding block 32 corresponding to the limiting sliding groove 33 is fixed on the outer surface of the embedded end of the movable rod 27, and a safety limiting block 34 is fixed on the inner side of the port of the limiting sliding groove 33.
As an embodiment of the present invention, an extrusion airbag 39 is fixedly connected between the limit slider 32 and the limit block 34; an annular groove 40 is formed in the side wall of the pressure plate 28 at the pressure opening 29; an expansion bag 41 is fixedly connected in the annular groove 40; the expansion bladder 41 is of annular design; a detention groove 42 is arranged in the movable rod 27; the left side and the right side of the detention groove 42 are designed in an arc shape; the squeeze bag 39 communicates with the retention groove 42; a control column 43 is slidably connected in the retention groove 42; one end of the control column 43 is positioned in the retention groove 42 and fixedly connected with a spring between the inner wall of the retention groove 42, the other end of the control column extends to the pressure port 29, and the spherical surface of the control column 43 at one end of the pressure port 29 is designed; a circulation groove is formed in the pressure plate 28; the circulation groove is designed to be communicated with the expansion bag 41 and the retention groove 42, and the communication position of the circulation groove and the retention groove 42 is positioned at the periphery of the control column 43; the control column 43 is covered with a sealing gasket 44 at one end surface in the detention groove 42, and the circulation groove can be sealed and opened by the movement of the control column 43; in operation, during the steady move down process of movable rod 27, extrusion gasbag 39, thereby make the gas in the extrusion gasbag 39 get into in the detention groove 42, make the internal gas pressure of detention groove 42 rise, when clamp plate 28 passes through the top in-process of pressure port 29 centre gripping in sensor main part 1, sensor main part 1 top extrusion control post 43, make control post 43 slide to detention inslot 42, the extrusion spring, thereby two make sealed pad 44 open the circulation groove, make the gas in the detention inslot 42 flow to the expansion bag 41 through the circulation groove, thereby make the expansion bag 41 inflation, further press from both sides tight sensor main part 1, realize sensor main part 1's multiple fixed, further improve sensor main part 1's stability.
During working, for some applicable occasions, such as outdoor use, the sensor body 1 is usually placed on the supporting plate 17, the power line connecting terminal 6 and the data output connecting terminal 7 on the sensor body 1 are respectively corresponding to the through hole 14, and the bracket components 13 on the two sides are used for stabilizing the mounting strips 5 at the left end and the right end of the sensor body 1, so that the pressing components 12 clamp the top end of the sensor body 1;
in the installation process of the sensor main body 1, the sensor main body 1 extrudes the extrusion bag 36, so that the extrusion bag 36 contracts, the diaphragm 35 expands to clamp a connecting line connected with the power line connecting terminal 6 and the data output connecting terminal 7, after the sensor main body 1 is installed, the detecting head main body 2 and the data output connecting terminal 7 are connected through the connecting line, the metal detecting head 8 is inserted into soil to be detected, the control key 4 selects the current working mode, namely the humidity of the currently detected soil can be displayed through the display screen 3, when the power line connecting terminal 6 and the data output connecting terminal 7 need to be detached, the rubber plug 37 is pulled out, so that gas in the cavity of the diaphragm 35 is released, the power line connecting terminal 6 and the data output connecting terminal 7 are pulled out, when the bracket component 13 works, the outer clamping plate 18 is opened firstly, and the installation strip 5 is correspondingly placed in the bracket 22, the outer clamping plate 18 is closed again, after the outer clamping plate 18 is closed, the first suction block 23 on the outer clamping plate 18 and the second suction block 24 on the inner supporting plate 19 are sucked with each other, and the stable assembly of the outer clamping plate 18 and the inner supporting plate 19 is realized
In the working process of the pressing assembly 12, the elastic action of the expansion spring 31 is utilized to enable the movable rod 27 to stably move downwards, and the pressing plate 28 at the end part of the movable rod is clamped at the top end of the sensor main body 1 through the pressing opening 29, so that the stability of the sensor main body 1 is ensured, and the limiting slide block 32, the limiting slide groove 33 and the safety limiting block 34 can ensure the stability of the movement of the movable rod 27; in the process that the movable rod 27 stably moves downwards, the extrusion air bag 39 is extruded, so that the gas in the extrusion air bag 39 enters the retention groove 42, the gas pressure in the retention groove 42 rises, when the pressing plate 28 is clamped at the top end of the sensor body 1 through the pressing port 29, the control column 43 is extruded at the top end of the sensor body 1, the control column 43 slides in the retention groove 42, the spring is extruded, so that the sealing gasket 44 opens the circulation groove, the gas in the retention groove 42 flows into the expansion bag 41 through the circulation groove, the expansion bag 41 expands, the sensor body 1 is further clamped, multiple fixation of the sensor body 1 is realized, and the stability of the sensor body 1 is further improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a humidity transducer, includes sensor main part (1) and detecting head main part (2), the lower part embedding of sensor main part (1) is provided with data output connecting terminal (7) and power cord connecting terminal (6) respectively, just data output connecting terminal (7) through the connecting wire with detecting head main part (2) are connected, a plurality of metal detecting heads (8) are installed in the embedding on detecting head main part (2), display screen (3) and control button (4), its characterized in that are installed in the leading flank embedding respectively of sensor main part (1): the sensor is characterized by further comprising a safety protection mobile support assembly (9), wherein the safety protection mobile support assembly (9) comprises a bottom plate (15), two side vertical plates (10) oppositely fixed at two ends of the top of the bottom plate (15) and a top plate (11) fixed at the top ends of the inner sides of the two side vertical plates (10), a supporting plate (17) is further fixed on the inner sides of the two side vertical plates (10), the sensor main body (1) is placed on the supporting plate (17), and four corners of the bottom plate (15) are respectively fixed with a mobile wheel (16); mounting strips (5) are respectively fixed at the left end and the right end of the sensor main body (1), and bracket assemblies (13) matched with the mounting strips (5) are respectively fixed on opposite surfaces of the side vertical plates (10); a pressing component (12) is fixed on the lower surface of the top plate (11), and the pressing component (12) is positioned right above the sensor body (1);
the support plate (17) is respectively provided with a through hole (14) corresponding to the power line connecting terminal (6) and the data output connecting terminal (7); the inner wall of each perforation (14) is fixedly connected with a diaphragm (35); a cavity is formed in the diaphragm (35); the upper surface of the supporting plate (17) is fixedly connected with a squeezing bag (36); the extrusion bag (36) is communicated with the cavity through a guide groove; the surface of the supporting plate (17) is provided with an opening; the trompil intercommunication guide slot design, and stopper in the trompil have rubber buffer (37).
2. A humidity sensor according to claim 1, wherein: the bracket assembly (13) comprises an outer clamping plate (18) and an inner supporting plate (19), a bracket (22) capable of accommodating the mounting bar (5) is arranged on the inner supporting plate (19), a first connecting block (20) is fixed on the surface of the lower part of the outer clamping plate (18), two second connecting blocks (21) distributed at intervals are fixed on the surface of the upper part of the inner supporting plate (19), a gap capable of accommodating the first connecting block (20) is formed between the two second connecting blocks (21), and the first connecting block (20) is rotatably connected with the second connecting blocks (21); two ends of the lower surface of the outer clamping plate (18) are respectively fixed with a first absorption block (23), and two ends of the upper surface of the inner supporting plate (19) are respectively fixed with a second absorption block (24); the first attraction block (23) and the second attraction block (24) are both permanent magnets.
3. A humidity sensor according to claim 2, wherein: the lower surface of the outer clamping plate (18) is fixedly connected with a rubber layer (38); the rubber layer (38) is wrapped on the first absorbing block (23).
4. A humidity sensor according to claim 1, wherein: the pressing assembly (12) comprises a fixed rod (26), a movable rod (27) and a telescopic spring (31), a mounting piece (25) is fixed at the top end of the fixed rod (26), and the fixed rod (26) is fixed on the top plate (11) through the mounting piece (25); the bottom end of the fixed rod (26) is provided with a movable groove (30) for the end part of the movable rod (27) to be embedded in, the top end of the movable rod (27) can be embedded in the movable groove (30) in a vertically reciprocating manner, the bottom end of the movable rod extends out of the movable groove (30), and the telescopic springs (31) are distributed between the end surface of the top end of the movable rod (27) and the groove top wall of the movable groove (30); a pressing plate (28) is fixed at the bottom end of the movable rod (27), and a pressing opening (29) capable of being clamped at the top of the sensor main body (1) is formed in the surface of the lower portion of the pressing plate (28).
5. A humidity sensor according to claim 4, wherein: two limiting sliding grooves (33) which are distributed oppositely are formed in the side wall of the movable groove (30), limiting sliding blocks (32) corresponding to the limiting sliding grooves (33) are fixed on the outer surface of the embedding end of the movable rod (27), and safety limiting blocks (34) are fixed on the inner sides of ports of the limiting sliding grooves (33).
6. A humidity sensor according to claim 5, wherein: an extrusion air bag (39) is fixedly connected between the limiting slide block (32) and the limiting block (34); an annular groove (40) is formed in the side wall of the pressure plate (28) at the pressure opening (29); an expansion bag (41) is fixedly connected in the annular groove (40); the expansion bladder (41) is of annular design; a detention groove (42) is formed in the movable rod (27); the left side and the right side of the detention groove (42) are designed in an arc shape; the squeezing air bag (39) is communicated with the retention groove (42); the detention groove (42) is internally and slidably connected with a control column (43); one end of the control column (43) is positioned in the retention groove (42) and fixedly connected with a spring between the inner wall of the retention groove (42), the other end of the control column extends to the pressure port (29) and is designed into a spherical surface at one end of the control column (43) at the pressure port (29); a circulation groove is formed in the pressure plate (28); the circulation groove is designed to be communicated with the expansion bag (41) and the detention groove (42), and the communication position of the circulation groove and the detention groove (42) is positioned at the periphery of the control column (43); the control column (43) is positioned in the detention groove (42) and one end surface of the control column is wrapped with a sealing gasket (44), and the control column (43) can move to seal and open the flow through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183726.9A CN111307882A (en) | 2020-03-16 | 2020-03-16 | Humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183726.9A CN111307882A (en) | 2020-03-16 | 2020-03-16 | Humidity sensor |
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| CN111307882A true CN111307882A (en) | 2020-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033460A (en) * | 2020-08-20 | 2020-12-04 | 王松 | Multifunctional environment monitoring sensor |
| CN116373500A (en) * | 2023-03-09 | 2023-07-04 | 敦煌研究院 | Electronic supporting device for wall painting protection |
-
2020
- 2020-03-16 CN CN202010183726.9A patent/CN111307882A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033460A (en) * | 2020-08-20 | 2020-12-04 | 王松 | Multifunctional environment monitoring sensor |
| CN116373500A (en) * | 2023-03-09 | 2023-07-04 | 敦煌研究院 | Electronic supporting device for wall painting protection |
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Application publication date: 20200619 |