CN210269840U - Equipment for detecting pH value of soil - Google Patents
Equipment for detecting pH value of soil Download PDFInfo
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- CN210269840U CN210269840U CN201921150493.1U CN201921150493U CN210269840U CN 210269840 U CN210269840 U CN 210269840U CN 201921150493 U CN201921150493 U CN 201921150493U CN 210269840 U CN210269840 U CN 210269840U
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Abstract
The utility model discloses a device for detecting the pH value of soil, which comprises an operation table, a test cup conveyer, a support and a detection structure arranged on the support, wherein the support comprises vertical supports arranged at the two sides of the test cup conveyer and a transverse support connected between the two vertical supports, the detection structure comprises a slide block arranged on the transverse support, the slide block is provided with a stirring device, a water adding device, a PH detection meter and a lifting control device for driving the stirring device, the water adding device and the PH detection meter to lift, and the water adding device comprises a flow detection device, a valve and a control device for controlling the valve switch according to the output value of the flow detection device; the device also comprises a driving structure for driving the sliding block to move along the transverse support and a testing cup detection device for testing cups below the support, and the lifting control device, the stirring device and the driving structure are all connected with a timing device. By adopting the device, the PH detection automation is completely realized, the detection error caused by human reasons is avoided, and time and labor are saved.
Description
Technical Field
The utility model relates to a PH check out test set field, more specifically the equipment that is used for detecting soil pH value that says so relates to.
Background
The pH value of the soil is one of basic properties of the soil and is also one of important factors influencing the fertility of the soil. The pH value of various soils in China has great variation, and the majority of the soils is 4.5-9. It directly affects the existence form, transformation and effectiveness of soil nutrients. The pH value of the soil is closely related to various analysis methods and analysis results. When the pH value of the soil is detected, the weighed soil is generally poured into a test cup, 25ml of quantitative carbon dioxide-free distilled water is added into the test cup, the mixture is stirred for 1 minute at a constant speed manually, then the mixture is placed under a probe for detection after standing for 30 minutes, and then the probe is cleaned to prepare the next sample.
The existing detection method and tool need to add solution quantitatively and manually stir, and because the standing time and the stirring time are fixed, the whole process is manually operated, the following problems exist: that is, forgetting time or recording time during operation or repeating the same action, resulting in experimental errors and affecting the accuracy of detection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and provide an equipment for detecting soil pH value.
The utility model discloses a following technical scheme realizes:
an apparatus for detecting the pH value of soil comprises an operation table, a test cup conveying device arranged on the operation table, a support arranged on the test cup conveying device and a detection structure arranged on the support, wherein the support comprises vertical supports arranged on two sides of the test cup conveying device and a transverse support connected between the two vertical supports; the device is characterized by further comprising a driving structure for driving the sliding block to move along the transverse support and a testing cup detection device for testing cups below the support, wherein the lifting control device, the stirring device and the driving structure are all connected with a timing device. According to the scheme, the test cup is automatically conveyed by the test cup conveying device, the flow detection device of the water adding device realizes monitoring of water flow, and a hardware basis is provided for quantitatively adding 25ML water into the test cup; the stirring device and the lifting control device are both connected with a timing device, and a hardware basis is provided for PH detection after stirring for 1 minute at regular time and standing for 30 minutes. The lifting control device controls the lifting of the stirring device, the water adding device and the PH detector so as to realize the selection of equipment in each operation link, the distance between the stirring device and the PH detector is limited by the diameter of the cup opening of the test cup, and the distance between the stirring device and the PH detector is shorter than the diameter of the cup opening of the test cup or is shorter than the distance between the stirring device and the PH detector, but the requirement on the volume specification of the lifting device is higher, for example, the requirement on the volume of a driving mechanism of the stirring device is higher, and the volume is smaller; to this scheme set up a slider on horizontal support and utilize drive structure drive slider to remove on the support, so to reduce the volume specification requirement to elevating gear to this. By adopting the device, the PH detection automation is completely realized, the detection error caused by human reasons is avoided, and time and labor are saved.
Preferably, in order to further accelerate the detection speed, the supports and the detection structure are multiple, and the supports are arranged in parallel and are equidistant between two adjacent supports. The support is provided with a plurality of detection structures which work simultaneously, so that the detection speed is improved.
Furthermore, a row of cup holders are arranged on the test cup conveying device, and the distance between every two adjacent cup holders is equal to the distance between every two adjacent supports.
Furthermore, the cup stand is made of plastic soft materials. The test cup conveying device generally adopts a belt pulley structure for conveying, can generate bending deformation when the end part is conveyed, and can prolong the service life of equipment by adopting a plastic material.
Preferably, the driving structure comprises a rack arranged on the transverse bracket, a first gear meshed with the rack and a first motor for driving the first gear to rotate, and the first motor is fixed on the sliding block.
Preferably, the lifting control device comprises a second motor, a second gear arranged on the second motor, and a left lifting plate and a right lifting plate which are respectively arranged on two sides of the second gear and meshed with the second gear, the stirring device and the water adding device are both arranged on the left lifting plate, and the pH detector is arranged on the right lifting plate. On same lifter plate was arranged in to the device of adding water and agitating unit, the device of adding water had both realized that the test cup ration was added water, also can realize agitating unit's washing, detected the meter with agitating unit and PH and arrange different lifter plates in, avoided agitating unit to detect the destruction of meter, improve equipment's life. Because the left lifting plate and the right lifting plate are respectively arranged on two sides of the gear, when the gear rotates, the two lifting plates move towards opposite directions, namely, if the left lifting plate rises, the right lifting plate falls, so that the height of the left lifting plate and the right lifting plate is controlled.
Preferably, in order to realize the self-cleaning of PH detection meter, avoid polluting the experiment next time and lead to the experiment inaccurate, be provided with belt cleaning device on the PH detection meter.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses a drive structure realizes agitating unit, the device of adding water, PH detects meter horizontal position's control, and the control that lifting control device realized agitating unit, the device of adding water, PH detection meter height to realize different steps and to the selection of different utensil, adopt the device, realize PH detection automation completely, avoid the people for the reason to lead to detecting the mistake, and labour saving and time saving.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of the elevation control apparatus.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
The device for detecting the pH value of the soil as shown in the figure 1 comprises an operation table 1, a test cup conveying device 2 arranged on the operation table 1, a support 3 arranged on the test cup conveying device 2 and a detection structure arranged on the support 3, wherein the support 3 comprises vertical supports arranged at two sides of the test cup conveying device 2 and a transverse support connected between the two vertical supports, the detection structure comprises a slide block 6 arranged on the transverse support, a stirring device, a water adding device, a PH detection meter and a lifting control device for driving the stirring device, the water adding device and the PH detection meter to lift are arranged on the slide block 6, and the water adding device comprises a flow detection device, a valve 5 and a control device for controlling the opening and closing of the valve 5 according to the output value of the flow detection device; the device is characterized by further comprising a driving structure for driving the sliding block 6 to move along the transverse support and a testing cup detection device for testing cups below the support, wherein the lifting control device, the stirring device and the driving structure are all connected with a timing device.
When the test cup detection device detects that a test cup is arranged below the support in actual operation, a subsequent flow is started, the driving slide block 6 drives the slide block to move until the water adding device is positioned above the test cup, the lifting control device controls the water adding device to move downwards to a proper position, the control device controls the water adding device to work, a valve of the water adding device is opened under the drive of a signal of the control device, and when the water flow detected by the flow detection device reaches 25ML, the control device outputs a signal to drive the valve to close. And the stirring device is placed in the test cup, stirring is started, and the stirring device stops stirring after the timing device counts for 1 minute. The stirring device is driven by the lifting control device to be separated from the test cup, and the test cup begins to stand; the driving slide block 6 drives the slide block to move until the PH detector is positioned above the test cup, and the lifting control device controls the PH detector to descend into the test cup for PH test after the timing device counts for 30 minutes again.
Example 2
Based on the principle of the above embodiments, the present embodiment refines the realizable scheme of the specific structure of each component.
As shown in fig. 2, the lifting control device includes a second motor 41, a second gear 42 disposed on the second motor 41, and a left lifting plate 43 and a right lifting plate 44 disposed on both sides of the second gear 42 and engaged with the second gear 42, wherein the left lifting plate 43 and the right lifting plate 44 are both provided with racks, the lifting control is realized by the engagement of the racks and the second gear 42, the stirring device and the water adding device are both disposed on the left lifting plate 43, and the PH detector is disposed on the right lifting plate 44. By adopting the lifting control device, the height control of the stirring device, the water adding device and the PH detector can be realized by using one motor, the structure is simple, and the cost is saved.
The valve 5 is connected to the water delivery hose 51, and the left lifting plate 43 is provided with a water delivery hose clamping groove 431. The water delivery hose is arranged between the left lifting plate and the inner wall of the frame body, and two ends of the water delivery hose are positioned at two sides of the frame body. The frame body has a limiting effect on the left lifting plate 43 and the right lifting plate 44, so that the left lifting plate and the right lifting plate are prevented from inclining, and the stability of the equipment is improved.
In order to facilitate the cleaning of the stirring device, the water adding device is arranged above the stirring device. The stirring device comprises a motor, a stirring rod arranged on an output shaft of the motor and a stirring blade arranged on the stirring rod. Specifically, a spray head of the water adding device is arranged above the stirring blade. Agitating unit can adopt current stirring structure to realize, because the test cup generally is made of glass cup material, the plastic of stirring leaf generally adopts the softwood matter, and the stirring speed should not be too fast, avoids stirring in-process destruction. The motor adopts small motor, the agitating unit of being convenient for and PH gauge installation distance's setting.
As shown in fig. 1, there are a plurality of supports 3 and detection structures, such as 2, 3, 4 or more, and the plurality of supports 3 are arranged in parallel and are equidistant between two adjacent supports 3. A row of cup holders 21 are arranged on the test cup conveying device 2, and the distance between two adjacent cup holders 21 is equal to the distance between two adjacent brackets 3. The cup holder 21 is made of plastic soft material. The test cup conveying device 2 is realized by adopting a belt pulley structure.
The driving structure comprises a rack 31 arranged on the transverse bracket, a first gear meshed with the rack 31 and a first motor used for driving the first gear to rotate, and the first motor is fixed on the sliding block 6. The length of the rack 31 is larger than the diameter of the cup mouth of the test cup and larger than the distance between the stirring blade of the stirring device and the PH detector.
The PH detector is provided with a cleaning device. The cleaning device can adopt the same structure as a water adding device, and a spray head of the cleaning device is arranged above a probe of the PH detector.
Between the controlling means, flow detection device and the valve that relate to in this scheme, the hardware circuit of lift controlling means, agitating unit, drive structure, timing device etc. all can adopt the current conventional circuit that corresponds to realize. The test cup detection device can be realized by adopting the existing laser emitting device and laser receiving device which are respectively arranged at the two sides of the conveying platform 2. In this embodiment, the next process is started when the test cup is detected for a certain period of time, and the next process is not started when the test cup is detected for only 2S or less, because the period of time may be detected by the test cup detecting device when the test cup moves from the holder at one end to the holder at the other end just after the detection. When a plurality of supports are arranged, the operation flow is as follows:
the testing cup conveying device 2 is started, an operator continuously puts testing cups into the cup holders 21 until the number of the testing cups is matched with the number of the supports, the testing cups move under the driving of the testing cup conveying device 2, the testing cup detecting device at the front end of each support detects the testing cups and is timed, and if the signals of the testing cups are detected to be uninterrupted for more than 2S, the next step of operation can be carried out. The driving slide block 6 drives the slide block to move until the water adding device is positioned above the testing cup, the lifting control device controls the water adding device to move downwards to a proper position, the control device controls the water adding device to work, a valve of the water adding device is opened under the driving of a signal of the control device, and when the water flow detected by the flow detection device reaches 25ML, the control device outputs a signal to drive the valve to close. At this time, the stirring device is also placed in the test cup, stirring is started, and the stirring device stops stirring after the timing device counts for 1 minute. The stirring device is driven by the lifting control device to be separated from the test cup, and the test cup begins to stand; the driving slide block 6 drives the slide block to move until the PH detector is positioned above the test cup, and the lifting control device controls the PH detector to descend into the test cup for PH test after the timing device counts for 30 minutes again. And after the test is finished and the counting of the tester is finished, starting the cleaning device to finish the cleaning of the probe of the PH detector.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The equipment for detecting the pH value of soil is characterized by comprising an operation table (1), a test cup conveying device (2) arranged on the operation table (1), a bracket (3) arranged on the test cup conveying device (2) and a detection structure arranged on the bracket (3), the support (3) comprises vertical supports arranged at two sides of the test cup conveying device (2) and a transverse support connected between the two vertical supports, the detection structure comprises a slide block (6) arranged on the transverse bracket, the slide block (6) is provided with a stirring device, a water adding device, a PH detection meter and a lifting control device for driving the stirring device, the water adding device and the PH detection meter to lift, the water adding device comprises a flow detection device, a valve (5) and a control device for controlling the opening and closing of the valve (5) according to the output value of the flow detection device; the device is characterized by further comprising a driving structure for driving the sliding block (6) to move along the transverse support and a testing cup detection device for testing cups below the support, wherein the lifting control device, the stirring device and the driving structure are all connected with a timing device.
2. The apparatus for detecting the pH value of soil according to claim 1, wherein said supports (3) and said detecting structure are provided in plurality, a plurality of supports (3) being arranged in parallel and equidistant between two adjacent supports (3).
3. The apparatus for detecting the pH value of soil according to claim 2, wherein the test cup transfer device (2) is provided with a row of cup holders (21) and the distance between two adjacent cup holders (21) is equal to the distance between two adjacent brackets (3).
4. The device for detecting the pH value of the soil according to claim 3, characterized in that said cup holder (21) is made of soft plastic material.
5. The device for detecting the pH value of soil according to claim 1, wherein the driving structure comprises a rack (31) arranged on the transverse support, a first gear engaged with the rack (31) and a first motor for driving the first gear to rotate, the first motor being fixed on the sliding block (6).
6. The apparatus for detecting pH of soil according to claim 1, wherein said lifting control device comprises a second motor (41), a second gear (42) disposed on the second motor (41), a left lifting plate (43) and a right lifting plate (44) disposed on two sides of the second gear (42) and engaged with the second gear (42), said stirring device and said water adding device are disposed on the left lifting plate (43), and said pH meter is disposed on the right lifting plate (44).
7. The apparatus for detecting pH of soil according to claim 1, wherein said pH meter is provided with a cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150493.1U CN210269840U (en) | 2019-07-22 | 2019-07-22 | Equipment for detecting pH value of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150493.1U CN210269840U (en) | 2019-07-22 | 2019-07-22 | Equipment for detecting pH value of soil |
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| Publication Number | Publication Date |
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| CN210269840U true CN210269840U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921150493.1U Active CN210269840U (en) | 2019-07-22 | 2019-07-22 | Equipment for detecting pH value of soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462038A (en) * | 2021-01-19 | 2021-03-09 | 王治安 | Soil heavy metal detection device for site environment investigation |
| CN115825400A (en) * | 2023-02-15 | 2023-03-21 | 成都旻农农业科技有限公司 | A soil moisture detection device for vegetation environmental monitoring |
-
2019
- 2019-07-22 CN CN201921150493.1U patent/CN210269840U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462038A (en) * | 2021-01-19 | 2021-03-09 | 王治安 | Soil heavy metal detection device for site environment investigation |
| CN115825400A (en) * | 2023-02-15 | 2023-03-21 | 成都旻农农业科技有限公司 | A soil moisture detection device for vegetation environmental monitoring |
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