CN208026670U - A kind of sensing device suitable for the online moisture measurement of grain heap - Google Patents
A kind of sensing device suitable for the online moisture measurement of grain heap Download PDFInfo
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- CN208026670U CN208026670U CN201820572560.8U CN201820572560U CN208026670U CN 208026670 U CN208026670 U CN 208026670U CN 201820572560 U CN201820572560 U CN 201820572560U CN 208026670 U CN208026670 U CN 208026670U
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Abstract
The utility model discloses a kind of sensing device suitable for the online moisture measurement of grain heap.The device includes the upper and lower side for being separately mounted to insulating bar, top crown and bottom crown in cone structure, it is upside down in the staving shape shell of big end at the top of top crown, mounted on the conehead of bottom crown bottom big end, the signal conditioning circuit plate being arranged in shell inner cavity, the top electrode being electrically connected with the input terminal of signal conditioning circuit plate and lower electrode, and it is connected to the output signal line of signal conditioning circuit plate output end；The input terminal of the top electrode is contacted with top crown, and the input terminal of lower electrode is contacted with bottom crown.The utility model solve the problems, such as conventional condenser moisture transducer due to electrode or so is vertically arranged and raw grain Density Distribution is non-uniform between causing two electrodes, can online moisture measurement accurately be carried out to grain heap, accuracy, authenticity and the consistency of grain heap water content detection are promoted, the safety and stability of grain storage is improved.
Description
Technical field
The utility model is related to the technical fields of grain storage engineering.More specifically it is that one kind being suitable for the online moisture of grain heap
The sensing device of measurement.
Background technology
It is stringent to control the important measures that grain moisture content variation is guarantee stored grain safety in the storage of national reserved grain
One of.During storage, variation and the safe storage of grain moisture content have close relationship, grain moisture content that can directly reflect grain
The safety of food, stability.Therefore, each grain depot is detected and controls to its moisture during raw grain is stored.Currently, traditional
The common method for measuring Measurement for Grain Moisture Content has：Heat drying method, the way of distillation, electrical measuring method, microwave method, nuclear magnetic resonance method and
Near-infrared is divided absorption process etc..Wherein, only electrical measuring method is suitable for detecting the online moisture of grain heap in real time.It is measured in electrical measuring method
The common sensor of grain moisture content has two kinds of resistance-type, condenser type.Resistance sensor hygrometric range is small, hysteresis is serious,
Linear poor, low-response is influenced that apparent, detection error is big by ambient humidity, especially low moisture when measurement accuracy it is worse, system
About its use in grain depot.And capacitance type sensor then can more sensitively reflect grain heap humidity and grain moisture content,
But two pole plates in current capacitance type sensor are the tactic pattern of vertical placement, left and right arrangement.Although this structure side
Just sensor is placed into grain heap, but since two pole plate spacing of such structural requirement are smaller, and raw grain cannot be certainly after being placed in grain heap
It is dynamic to be uniformly covered with entire electrode space, lead between electrode that there are gap or raw grain Density inhomogeneities, is surveyed to influence grain heap moisture
The consistency and accuracy of amount.
Invention content
The purpose of this utility model be exactly for the above-mentioned prior art in the presence of shortcoming and a kind of be applicable in is provided
In the sensing device of the online moisture measurement of grain heap, the utility model solves conventional condenser moisture transducer due to electrode or so
It is vertically arranged and causes the non-uniform problem of raw grain Density Distribution between two electrodes, it can be accurately right using the utility model
Grain heap carries out online moisture measurement, promotes accuracy, authenticity and the consistency of grain heap water content detection, and real-time and accurately controls
The moisture value of grain heap Bulk Grain particle helps to improve the safety and stability of grain storage again.
The purpose of this utility model can be realized by following technique measures：
The sensing device suitable for the online moisture measurement of grain heap of the utility model includes be separately mounted to insulating bar upper
Lower end, top crown and bottom crown in cone structure are upside down in the staving shape shell of big end at the top of top crown, are mounted on bottom crown
The conehead of bottom big end（When sensing device is inserted into inside grain heap, resistance can be reduced, sensing device is facilitated smoothly to be inserted into grain heap
In）, the signal conditioning circuit plate that is arranged in shell inner cavity（The main conversion for completing capacitance and moisture value）, with signal condition
The top electrode of the input terminal electrical connection of circuit board and lower electrode, and it is connected to the output signal of signal conditioning circuit plate output end
Line；The input terminal of the top electrode is contacted with top crown, and the input terminal of lower electrode is contacted with bottom crown.
Top crown described in the utility model and bottom crown are conical structure；In the middle part of the large end face of conical structure
It opens up fluted（For placing top electrode, the groove in bottom crown is used to place lower electrode groove in top crown, while recessed
Slot is also used as threading channel）, outer groove is offered in the large end face outer rim of conical structure（Outer groove in top crown
For fastening shell, the outer groove in bottom crown is for fastening conehead）, hole is threaded in the small end of conical structure（With
In connection insulating bar）.
The upper and lower end end portion of the insulating bar is threaded in the present invention（The screw thread simultaneously with
Threaded hole matching in top crown, bottom crown, makes between top crown and insulating bar, bottom crown and insulating bar respectively by screw thread knot
The mode of conjunction is connected）, central through hole is provided in the axial direction in insulating bar（Central through hole is as threading channel）.
The open end inner edge surface of the shell is machined with inner groove in the present invention（By the inner groove of shell with it is upper
Outer groove in pole plate forms the buckle structure of pairing, and shell can be made steadily to be upside down in the top big end of top crown）.
The large end face of conehead described in the utility model extends to form land up and out simultaneously, in the land upper table
The center in face is machined with inner groove, outer rim is machined with outer groove（Pass through the outer shroud flute profile in the inner groove and bottom crown of conehead
At the buckle structure of pairing, it can make conehead that the bottom big end in bottom crown be stably buckled；The outer groove of conehead is put for blocking
With the bottom end of supporting sleeve, entire sensing device is pushed into inside grain heap by acting on the external force on casing）.
Top electrode described in the utility model contacts the groove slot bottom for being arranged in top crown（Top electrode is set to contact top crown）,
It is connected with the input terminal of signal conditioning circuit plate by electrode wires I；Groove slot bottom of the lower electrode arrangement in bottom crown（Make
Lower electrode contacts bottom crown）, it is connected with the input terminal of signal conditioning circuit plate by electrode wires II, the electrode wires II are successively
The groove of the groove of drawing-in bottom crown, the central through hole of insulating bar, top crown（Led to by the center of the groove of bottom crown, insulating bar
The groove formation in hole, top crown threads channel, convenient for smoothly installing for electrode wires II；Meanwhile whole trace arrangements are in the device,
The friction of circuit in use and grain is also avoided, measurement accuracy is improved, prolongs the service life）.
In the present invention threading hole is offered on the top surface of the shell（Convenient for drawing output signal line）.
The design principle of the utility model is as follows：
Top crown and bottom crown in the utility model are separately mounted to the upper and lower side of insulating bar, i.e. top crown and bottom crown
It is that two own levels are placed, with the opposite mode of conehead two conical structure electrode plates arranged up and down.When by outside
Casing shift entire sensing device onto designated position inside grain heap and take out casing after, the bulk solid in grain heap is in gravity
Under the action of along the male cone (strobilus masculinus) of top crown and bottom crown flow, gradually uniformly fill up the space between top crown and bottom crown, i.e.,
The all raw grain particles of filler around top crown and bottom crown, dielectric constant are to ensure that the only raw grain particle bodily form
At, then it is just formed very with the moisture value of grain heap granule by two interelectrode capacitance values that signal conditioning circuit plate detected
Real correspondence thus accurately can carry out online moisture measurement to grain heap, promoted grain heap water content detection accuracy,
Authenticity and consistency, and the moisture value for real-time and accurately controlling grain heap Bulk Grain particle helps to improve the safety of grain storage
Property and stability.Further, since the insulating bar of connection top crown and bottom crown is a tiny non-conductive rod piece, it will not be to grain
The natural transfer of heap moisture generates barrier, also further ensures the moisture value for the grain heap granule that the utility model measures more
Really.
The advantageous effects of the utility model are as follows：
The utility model solves conventional condenser moisture transducer and causes two electricity since electrode or so is vertically arranged
The non-uniform problem of raw grain Density Distribution between pole accurately can carry out online moisture survey using the utility model to grain heap
Amount, promotes accuracy, authenticity and the consistency of grain heap water content detection, and real-time and accurately controls the moisture of grain heap Bulk Grain particle
Value helps to improve the safety and stability of grain storage again.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Status diagram when Fig. 2 is the use of the utility model.
Figure number number explanation：1, lower electrode, 2, insulating bar, 3, top electrode, 4, electrode wires I, 5, signal conditioning circuit plate, 6,
Output signal line, 7, shell, 8, electrode wires II, 9, top crown, 10, bottom crown, 11, conehead, 12, casing.
Specific implementation mode
It is further described below in conjunction with attached drawing below the utility model：
As shown in Figure 1, the sensing device suitable for the online moisture measurement of grain heap of the utility model includes being separately mounted to
The upper and lower side of insulating bar 2, top crown 9 and bottom crown 10 in cone structure, are upside down in outside the staving shape of 9 top big end of top crown
Shell 7 is mounted on the conehead 11 of 10 bottom big end of bottom crown（When sensing device is inserted into inside grain heap, resistance can be reduced, it is convenient
Sensing device is smoothly inserted into grain heap）, the signal conditioning circuit plate 5 that is arranged in 7 inner cavity of shell（It is main to complete capacitance and water
The conversion of score value）, the top electrode 3 that is electrically connected with the input terminal of signal conditioning circuit plate 5 and lower electrode 1, and it is connected to signal
The output signal line 6 of 5 output end of modulate circuit plate；The input terminal of the top electrode 3 is contacted with top crown 9, the input of lower electrode 1
End is contacted with bottom crown 10.
Top crown 9 described in the utility model and bottom crown 10 are conical structure；In the large end face of conical structure
Middle part opens up fluted（Groove in top crown 9 is for placing top electrode 3, and the groove in bottom crown 10 is for placing lower electricity
Pole 1, while groove is also used as threading channel）, outer groove is offered in the large end face outer rim of conical structure（Top crown
Outer groove in 9 is for fastening shell 7, and the outer groove in bottom crown 10 is for fastening conehead 11）, in the small end of conical structure
It is threaded hole（For connecting insulating bar 2）.
The upper and lower end end portion of the insulating bar 2 is threaded in the present invention（The screw thread simultaneously with
Threaded hole matching in top crown 9, bottom crown 10, makes respectively to lead between top crown 9 and insulating bar 2, bottom crown 10 and insulating bar 2
The mode being screwed is crossed to be connected）, central through hole is provided in the axial direction in insulating bar 2（Central through hole is as threading channel）.
The open end inner edge surface of the shell 7 is machined with inner groove in the present invention（By the inner groove of shell 7 with
Outer groove in top crown 9 forms the buckle structure of pairing, and the top that shell 7 is steadily upside down in top crown 9 can be made big
End）.
The large end face of conehead 11 described in the utility model extends to form land up and out simultaneously, in the land
The center on surface is machined with inner groove, outer rim is machined with outer groove（By outer in the inner groove and bottom crown 10 of conehead 11
Annular groove forms the buckle structure of pairing, can make conehead 11 that the bottom big end in bottom crown 10 be stably buckled；Outside conehead 11
Entire sensing device is pushed into grain heap by annular groove for blocking the bottom end put with supporting sleeve 12, by acting on the external force on casing 12
It is internal）.
Top electrode 3 described in the utility model contacts the groove slot bottom for being arranged in top crown 9（Make the upper pole of the contact of top electrode 3
Plate 9）, it is connected with the input terminal of signal conditioning circuit plate 5 by electrode wires I 4；The lower electrode 1 is arranged in bottom crown 10
Groove slot bottom（Lower electrode 1 is set to contact bottom crown 10）, it is connected with the input terminal of signal conditioning circuit plate 5 by electrode wires II 8,
The groove of the electrode wires II 8 groove of drawing-in bottom crown 10, the central through hole of insulating bar 2, top crown 9 successively（By bottom crown
The groove formation threading channel of 10 groove, the central through hole of insulating bar 2, top crown 9, convenient for smoothly installing for electrode wires II 8；
Meanwhile whole trace arrangements are in the device, also avoid the friction of circuit in use and grain, improve and measure essence
It spends, prolong the service life）.
In the present invention threading hole is offered on the top surface of the shell 7（Convenient for drawing output signal line 6）.
Specific use process is as follows for the utility model：
As shown in Fig. 2, first, the card of casing 12 being placed in the outer groove of conehead 11, is used to the designated position inside grain heap
Casing 12 is pushed, thrust is passed into conehead 11 by casing 12, and then it is mobile inside grain heap to drive entire sensing device to push to；
After reaching designated position, casing 12 is taken out；Then, the output signal line 6 of 5 output end of signal conditioning circuit plate is controlled with external
Device processed is connected with display device；Then the bulk solid in grain heap is under gravity along top crown 9 and bottom crown 10
Male cone (strobilus masculinus) flows, and gradually uniformly fills up the space between top crown 9 and bottom crown 10；It detected by signal conditioning circuit plate 5
Capacitance between the top crown 9 contacted with top electrode 3 and the bottom crown 10 contacted with lower electrode 1 simultaneously completes capacitance and water
The conversion of score value, then moisture value output signal is passed to by external control device and display device by output signal line 6, in turn
Online moisture measurement accurately is carried out to grain heap, promotes the accuracy of grain heap water content detection, realizes and grasps grain heap Bulk Grain in real time
The moisture value of grain.
Claims (7)
1. a kind of sensing device suitable for the online moisture measurement of grain heap, it is characterised in that：It includes being separately mounted to insulating bar
（2）Upper and lower side, the top crown in cone structure（9）And bottom crown（10）, it is upside down in top crown（9）The staving shape of top big end
Shell（7）, it is mounted on bottom crown（10）The conehead of bottom big end（11）, it is arranged in shell（7）Signal conditioning circuit in inner cavity
Plate（5）, with signal conditioning circuit plate（5）Input terminal electrical connection top electrode（3）With lower electrode（1）, and it is connected to signal
Modulate circuit plate（5）The output signal line of output end（6）；The top electrode（3）Input terminal and top crown（9）Contact, lower electricity
Pole（1）Input terminal and bottom crown（10）Contact.
2. the sensing device according to claim 1 suitable for the online moisture measurement of grain heap, it is characterised in that：The upper pole
Plate（9）And bottom crown（10）It is conical structure；Opened up in the middle part of the large end face of conical structure it is fluted, in cone
The large end face outer rim of structure offers outer groove, and hole is threaded in the small end of conical structure.
3. the sensing device according to claim 1 suitable for the online moisture measurement of grain heap, it is characterised in that：Described exhausted
Edge bar（2）Upper and lower end end portion be threaded, in insulating bar（2）It is provided in the axial direction with central through hole.
4. the sensing device according to claim 1 suitable for the online moisture measurement of grain heap, it is characterised in that：Described outer
Shell（7）Open end inner edge surface be machined with inner groove.
5. the sensing device according to claim 1 suitable for the online moisture measurement of grain heap, it is characterised in that：The conehead
（11）Large end face simultaneously extend to form land up and out, be machined with inner groove, outer rim at the center of the land upper surface
It is machined with outer groove.
6. the sensing device according to claim 1 or 2 suitable for the online moisture measurement of grain heap, it is characterised in that：It is described
Top electrode（3）Contact is arranged in top crown（9）Groove slot bottom, pass through electrode wires I（4）With signal conditioning circuit plate（5）It is defeated
Enter end to be connected；The lower electrode（1）It is arranged in bottom crown（10）Groove slot bottom, pass through electrode wires II（8）With signal condition
Circuit board（5）Input terminal be connected, the electrode wires II（8）Drawing-in bottom crown successively（10）Groove, insulating bar（2）In
Heart through-hole, top crown（9）Groove.
7. the sensing device according to claim 1 suitable for the online moisture measurement of grain heap, it is characterised in that：Described outer
Shell（7）Top surface on offer threading hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820572560.8U CN208026670U (en) | 2018-04-21 | 2018-04-21 | A kind of sensing device suitable for the online moisture measurement of grain heap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820572560.8U CN208026670U (en) | 2018-04-21 | 2018-04-21 | A kind of sensing device suitable for the online moisture measurement of grain heap |
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| Publication Number | Publication Date |
|---|---|
| CN208026670U true CN208026670U (en) | 2018-10-30 |
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ID=63911025
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820572560.8U Active CN208026670U (en) | 2018-04-21 | 2018-04-21 | A kind of sensing device suitable for the online moisture measurement of grain heap |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765276A (en) * | 2019-01-04 | 2019-05-17 | 深圳市通量检测科技有限公司 | A kind of device for fruits and vegetables heavy metal analysis |
| CN112212200A (en) * | 2020-11-09 | 2021-01-12 | 崇左南方水泥有限公司 | On-line monitoring device for oil gas humidity of cement lubricating station |
-
2018
- 2018-04-21 CN CN201820572560.8U patent/CN208026670U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765276A (en) * | 2019-01-04 | 2019-05-17 | 深圳市通量检测科技有限公司 | A kind of device for fruits and vegetables heavy metal analysis |
| CN112212200A (en) * | 2020-11-09 | 2021-01-12 | 崇左南方水泥有限公司 | On-line monitoring device for oil gas humidity of cement lubricating station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sensing device suitable for grain piles up line moisture measurement Effective date of registration: 20190416 Granted publication date: 20181030 Pledgee: Bank of China Zhengzhou branch of Limited by Share Ltd culture Pledgor: Zhengzhou Beibo Electronics Co., Ltd. Registration number: 2019990000326 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200520 Granted publication date: 20181030 Pledgee: Bank of China Zhengzhou branch of Limited by Share Ltd culture Pledgor: ZHENGZHOU BEIBO ELECTRONICS Co.,Ltd. Registration number: 2019990000326 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sensing device suitable for grain piles up line moisture measurement Effective date of registration: 20200525 Granted publication date: 20181030 Pledgee: Bank of China Zhengzhou branch of Limited by Share Ltd culture Pledgor: ZHENGZHOU BEIBO ELECTRONICS Co.,Ltd. Registration number: Y2020990000519 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210707 Granted publication date: 20181030 Pledgee: Bank of China Zhengzhou branch of Limited by Share Ltd. culture Pledgor: ZHENGZHOU BEIBO ELECTRONICS Co.,Ltd. Registration number: Y2020990000519 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |