CN214225467U - Portable rain gauge calibrating device - Google Patents
Portable rain gauge calibrating device Download PDFInfo
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- CN214225467U CN214225467U CN202022228325.9U CN202022228325U CN214225467U CN 214225467 U CN214225467 U CN 214225467U CN 202022228325 U CN202022228325 U CN 202022228325U CN 214225467 U CN214225467 U CN 214225467U
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- rain gauge
- water
- calibration device
- connecting pipe
- bearing container
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Abstract
The utility model provides a portable rain gauge calibrating device, including instrument shelter, controller, peristaltic pump, electronic balance, connecting pipe, water-holding container, supporting component and calibration accessory. The utility model optimizes the structure of the prior rain gauge calibrator, horizontally installs the core structural member in the instrument box, and is assisted with the support assembly to ensure that the core structural member can normally operate, and simultaneously reduces the influence of the external environment on the calibrator; optimize the water-holding container again, make its and calibration accessory homoenergetic accomodate in the instrument shelter to can not lead to the fact the interference influence to core structure spare. The utility model discloses having optimized rain gauge calibrating device's overall structure, having reduced the volume, having improved the integrated level, reduced whole weight, realized rain gauge calibrating device's portability.
Description
Technical Field
The utility model relates to a rain gauge examination calibration technical field particularly relates to a portable rain gauge calibrating device.
Background
The precipitation monitoring instrument needs to adopt a calibrating device to assist in detection from the production process to the laboratory detection until the later standard use and operation maintenance. However, due to the lack of a rain gauge calibration device used on site, the current rain gauge does not have any calibration check in the whole service period after being shipped from a factory, and the precision of the rain gauge test data is seriously influenced.
Referring to fig. 2, in utility model with patent number CN206818895U, a portable rain gauge calibrator is provided, the water in the water receiver is extracted to the rain gauge through the peristaltic pump, the analog measurement process of the rain gauge is realized, and simultaneously, the water quantity injected into the rain gauge is accurately measured by adopting the weighing sensor, and the rain gauge is calibrated. The movable rain gauge calibrator is particularly suitable for calibrating large-batch rain gauges which are installed in the field and are inconvenient to disassemble. However, the aforesaid rain gauge calibrator still has the following drawbacks:
first, although the rain gauge calibrator has a self weight of only 8kg, due to the structural design principle, accessories such as a connection pipe, a weight, and a calibration fitting are not stored in the rain gauge calibrator. In order to store accessories and be convenient for carrying and transporting the whole rain gauge calibrator, a special draw-bar box is arranged outside the case, the sum of the weights of the two is about 20kg, the volume of the draw-bar box is about 570 x 440 x 270(mm), and the portability is poor, particularly in non-flat scenes such as steps or fields.
Secondly, although a peristaltic pump is adopted to simulate different rainfall intensities in the nature, when the rainfall intensity is small, the instant water yield is obviously uneven.
Thirdly, in order to reduce the influence of the external environment on the latex tube, the weighing sensor and the water receiver are both installed inside the case, and the weighing value of the weighing sensor needs a user to open the case to check or transmit the reading to the liquid crystal display installed outside the case to display, which is complex.
Therefore, it is necessary to provide a new portable rain gauge calibration device to optimize the existing problems of portability and uneven instantaneous water output.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a portable rain gauge calibration device, which optimizes the structure of the existing rain gauge calibration instrument, horizontally installs a core structural member in an instrument box, and is assisted by a support assembly to ensure that the instrument box can normally operate, and simultaneously reduces the influence of the external environment on the calibration device; optimize the water-holding container again, make its and calibration accessory homoenergetic accomodate in the instrument shelter to can not lead to the fact the interference influence to core structure spare. The utility model discloses having optimized rain gauge calibrating device's overall structure, having reduced the volume, having improved the integrated level, reduced whole weight, realized rain gauge calibrating device's portability.
In order to achieve the above object, the present invention provides a portable rain gauge calibration device, which comprises an instrument box, a controller, a peristaltic pump, an electronic balance, a connecting pipe, a water-bearing container, a support assembly and a calibration fitting;
the instrument box is cuboid and comprises an upper cover, a lower box body, a lock catch and a handle; one long edge of the upper cover is hinged to the corresponding side face of the lower box body, the other long edge of the upper cover is connected with the other side face of the lower box body through a lock catch, and the handle is fixed to the outer side of the instrument box;
the controller, the peristaltic pump and the electronic balance are horizontally fixed in a lower box body of the instrument box, the water bearing container is removably placed on the upper surface of the electronic balance, and the electronic balance weighs the weight of liquid in the water bearing container in real time;
the supporting assembly comprises a supporting rod vertically arranged at a position close to the electronic horizon and a pipe bracket horizontally connected to the top of the supporting rod, and the pipe bracket is suspended right above the water bearing container; the connecting pipe is attached to the supporting rod and the pipe support, one end of the connecting pipe is vertically immersed into liquid in the water bearing container from the position right above the water bearing container, and the other end of the connecting pipe is connected to the peristaltic pump and is connected into the rain gauge on the outer side of the lower box body through the peristaltic pump;
the peristaltic pump is connected with the controller, liquid with specified weight is extracted from the water bearing container at preset extraction frequency according to a control instruction of the controller, and the extracted liquid is injected into the rain gauge through the connecting pipe;
the inner side of the upper cover is provided with a bag-shaped accommodating part for storing the detached calibration accessory, the connecting pipe and the water bearing container.
Furthermore, the instrument box is made of a PC material.
Furthermore, the supporting rod comprises a base and a telescopic rod;
the base is fixedly connected to the bottom surface of the lower box body close to the electronic sky-level position, and the telescopic rod is vertically installed on the base and stretches out and draws back along the vertical direction.
Furthermore, the telescopic rod adopts a telescopic guide rail.
Furthermore, the pipe support is hinged to one end, far away from the base, of the telescopic rod, and the pipe support rotates around the hinged point under the action of external force to be contracted to be tightly attached to one side of the telescopic rod or expanded to be horizontally suspended over the water bearing container.
Furthermore, a strap assembly is mounted on the outer side of the instrument box.
Further, the connecting pipe is connected to the rain gauge through a peristaltic pump and a damper in sequence.
Furthermore, a through hole is formed in the instrument box, and the connecting pipe penetrates through the through hole and is connected to the outer side of the instrument box.
Furthermore, the water-bearing container is a compressible container made of a non-metal material.
By above the technical scheme of the utility model, compare with current, its beneficial effect who is showing lies in:
(1) the structure to current rain gauge calibrator is optimized, with core structure horizontal installation in the instrument shelter, is assisted with supporting component and makes the connecting pipe hang directly over the water-bearing container, avoids external environment to cause the influence to the connecting pipe simultaneously, makes whole rain gauge calibrator can normal operating.
(2) Optimize water-bearing container and supporting component, make it and calibration accessory homoenergetic accomodate in the instrument shelter, improved whole rain gauge calibrating device's integrated level to can not lead to the fact the interference influence to core structure spare.
(3) The utility model discloses having optimized rain gauge calibrating device's overall structure, having reduced the volume, having reduced whole weight, with the help of handle or braces, realized rain gauge calibrating device's portability.
(4) The controller and the electronic balance are horizontally arranged, a user can directly operate the controller and the electronic balance in the calibration process, and the operation is convenient.
(5) The damper is adopted, so that the instantaneous water yield of the liquid injected into the rain gauge is more uniform, and the detection error of the rain gauge caused by the water burst phenomenon is reduced.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the portable rain gauge calibration device of the present invention.
Fig. 2 is a schematic structural diagram of the mobile rain gauge calibrator.
Fig. 3 is a schematic view of the top view of the working state of the mobile rain gauge calibration device of the present invention.
Fig. 4 is a schematic side view of the working state of the mobile rain gauge calibration device of the present invention.
Fig. 5 is a schematic structural view of the support assembly.
Fig. 6 is a schematic view of the structure of the damper.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
With reference to fig. 1, the utility model provides a portable rain gauge calibrating device, rain gauge calibrating device includes instrument shelter 1, controller 2, peristaltic pump 3, electronic balance 4, connecting pipe 6, water-holding container 7, supporting component and calibration accessory.
The instrument box 1 is in a cuboid shape and comprises an upper cover 11, a lower box body, a lock catch and a handle; one long edge of the upper cover 11 is hinged to the corresponding side face of the lower box body, the other long edge of the upper cover is connected with the other side face of the lower box body through a lock catch, and the handle is fixed to the outer side of the instrument box 1. Preferably, the instrument box 1 is made of PC material to reduce the overall weight of the calibration device. More preferably, a standard box of 500 x 400 x 250(mm) is used.
The controller 2, the peristaltic pump 3 and the electronic balance 4 are horizontally fixed in a lower box body of the instrument box 1, the water bearing container 7 is removably placed on the upper surface of the electronic balance 4, and the electronic balance 4 weighs the weight of liquid in the water bearing container 7 in real time. Preferably, the water container 7 is made of a non-metal material, such as a plastic material, to reduce the overall weight of the calibration device. In theory, as long as the volume of the water storage containers meets the volume required by three times of calibration (about 1L), the water storage containers can be used, and due to the horizontal arrangement among the core parts, the water bearing containers 7 can adopt the related containers with larger cross sections and smaller height. Instead of the portable rain gauge calibrator as proposed in the utility model under patent No. CN206818895U, a water reservoir with a smaller cross section and a larger height is required in order to reduce the overall volume. On the basis, the water-bearing container 7 is preferably a compressible container made of a non-metal material. The thickness of the compressed water container 7 can be controlled within 50mm, and the compressed water container, the detached calibration fitting and the connecting pipe 6 are stored in the bag-shaped accommodating part on the inner side of the upper cover 11, so that the whole calibration device is integrated.
In the present application, the controller 2, the peristaltic pump 3 and the electronic balance 4 are changed from a vertical arrangement to a horizontal arrangement, improving the operational convenience of the entire calibration device. Meanwhile, in response to this layout change, the original vertical cabinet is replaced with a flat and long cabinet as shown in fig. 1. However, a new problem is also brought about, firstly, how to expose the connecting pipe 6 outside and avoid the influence of the external environment (such as strong wind, etc.), and secondly, how to set up the connecting route of the connecting pipe 6, so that the weighing accuracy of the electronic balance 4 can be influenced by no direct contact with the electronic balance 4 and the water bearing container 7.
Referring to fig. 3 and 4, for this purpose, the present application proposes to arrange the auxiliary connecting pipe 6 through the supporting component, arrange the connecting pipe 6 overhead directly above the water bearing container 7 through the supporting component, and vertically lower the connecting pipe into the water bearing container 7 from directly above to perform a water pumping operation.
Specifically, the support assembly comprises a support rod 81 vertically arranged at a position close to the electronic balance 4 and a pipe bracket 82 horizontally connected to the top of the support rod 81, and the pipe bracket 82 is suspended over the water bearing container 7; the connecting pipe 6 is attached to the supporting rod 81 and the pipe support 82, one end of the connecting pipe is vertically immersed into the liquid in the water container 7 from the position right above the water container 7, and the other end of the connecting pipe is connected to the peristaltic pump 3 and is connected to the inside of the rain gauge outside the lower box body through the peristaltic pump 3.
In some examples, the support bar 81 includes a base and a telescoping bar.
Referring to fig. 5, the base is fixedly connected to the bottom surface of the lower box body near the electronic balance 4, and the telescopic rod is vertically installed on the base and extends and retracts in the vertical direction. When the rain gauge calibration device works, the telescopic rod is unfolded, so that the pipe bracket 82 is suspended right above the water bearing container 7; when the rain gauge calibration device finishes the calibration work, the telescopic rod is contracted, so that the height of the pipe support 82 and the telescopic rod is lower than that of the lower box body, and the structural interference is avoided. Preferably, the telescopic rod can adopt a telescopic guide rail.
In other examples, the tube support 82 is hinged to the end of the telescopic rod away from the base, and the tube support 82 rotates around the hinged point under the action of external force to be contracted to be close to one side of the telescopic rod or expanded to be horizontally suspended right above the water bearing container 7. Through the structure, the pipe bracket 82 can be accommodated, so that the water container 7 can be conveniently operated in the detection process, and impact force is generated on the pipe bracket 82 by other accessories in the transportation process.
Preferably, the instrument box 1 is provided with a through hole, the connecting pipe 6 penetrates through the through hole and is connected to the outer side of the instrument box 1, the connecting pipe 6 in the box body is simplified to run, the structure of the whole calibration device is more reasonable, and the calibration device is convenient to disassemble, assemble and maintain daily.
The peristaltic pump 3 is connected with the controller 2, liquid with specified weight is extracted from the water bearing container 7 at preset extraction frequency according to a control instruction of the controller 2, and the extracted liquid is injected into the rain gauge through the connecting pipe 6.
The working principle of this place is similar aforementioned portable rain gauge calibrator, also controls speed through controlling peristaltic pump 3 extrusion frequency to the different rainfall intensity of simulation nature makes the rain gauge detect the water yield of peristaltic pump 3, adopts electronic balance 4 to read more accurate water extraction simultaneously, calibrates the rain gauge with this.
Unlike the mobile rain gauge, the present application optimizes this portion of the water output as well. Practice proves that when the simulated rainfall intensity is small, the instantaneous water yield is not uniform, the water yield form is a strand, although the total amount is constant, the rainfall meter causes the verification error due to the water inrush phenomenon, and the verification error becomes larger as the simulated rainfall intensity is reduced.
Therefore, the damper 5 is additionally arranged between the peristaltic pump 3 and the rain gauge, so that the outlet water at the peristaltic pump 3 firstly passes through the damper 5 and then is injected into the rain gauge, the uniformity of the instantaneous water yield is improved, and the calibration error of the rain gauge is reduced. Fig. 6 is a schematic structural view of the damper 5 used in the present application. The damper 5 includes a body 51, a top cover 52 and a bottom cover 53 respectively attached to both ends of the body 51 in the extending direction, a joint 54 provided at the center of the bottom cover 53 and the center of the top cover 52, and an O-ring 55 provided in the body adjacent to the top cover.
Through the structural optimization, the weight of the whole calibration device is reduced to about 10kg, and the calibration device can be directly carried by a shoulder strap or a handle when being used on site.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (9)
1. A portable rain gauge calibration device is characterized by comprising an instrument box, a controller, a peristaltic pump, an electronic balance, a connecting pipe, a water bearing container, a support assembly and a calibration accessory;
the instrument box is cuboid and comprises an upper cover, a lower box body, a lock catch and a handle; one long edge of the upper cover is hinged to the corresponding side face of the lower box body, the other long edge of the upper cover is connected with the other side face of the lower box body through a lock catch, and the handle is fixed to the outer side of the instrument box;
the controller, the peristaltic pump and the electronic balance are horizontally fixed in a lower box body of the instrument box, the water bearing container is removably placed on the upper surface of the electronic balance, and the electronic balance weighs the weight of liquid in the water bearing container in real time;
the supporting assembly comprises a supporting rod vertically arranged at a position close to the electronic horizon and a pipe bracket horizontally connected to the top of the supporting rod, and the pipe bracket is suspended right above the water bearing container; the connecting pipe is attached to the supporting rod and the pipe support, one end of the connecting pipe is vertically immersed into liquid in the water bearing container from the position right above the water bearing container, and the other end of the connecting pipe is connected to the peristaltic pump and is connected into the rain gauge on the outer side of the lower box body through the peristaltic pump;
the peristaltic pump is connected with the controller, liquid with specified weight is extracted from the water bearing container at preset extraction frequency according to a control instruction of the controller, and the extracted liquid is injected into the rain gauge through the connecting pipe;
the inner side of the upper cover is provided with a bag-shaped accommodating part for storing the detached calibration accessory, the connecting pipe and the water bearing container.
2. The portable rain gauge calibration device of claim 1, wherein the instrument box is made of PC material.
3. The portable rain gauge calibration device of claim 1, wherein the support rod comprises a base and a telescoping rod;
the base is fixedly connected to the bottom surface of the lower box body close to the electronic sky-level position, and the telescopic rod is vertically installed on the base and stretches out and draws back along the vertical direction.
4. The portable rain gauge calibration device of claim 3, wherein said telescoping rod employs a telescoping rail.
5. The portable rain gauge calibration device of claim 3, wherein the tube support is hinged to an end of the telescopic rod away from the base, and the tube support rotates around the hinge point under the action of external force to be contracted to be close to one side of the telescopic rod or expanded to be horizontally suspended over the water-bearing container.
6. The portable rain gauge calibration device of claim 1, wherein a harness assembly is mounted to an outside of the instrument case.
7. A portable rain gauge calibration device according to any one of claims 1 to 6, wherein the connection tube is connected to the rain gauge via a peristaltic pump and a damper in sequence.
8. The portable rain gauge calibration device according to any one of claims 1 to 6, wherein a through hole is provided on the instrument case, and the connection pipe is connected to an outside of the instrument case through the through hole.
9. The portable rain gauge calibration device according to any one of claims 1 to 6, wherein the water-holding container is a compressible container made of a non-metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022228325.9U CN214225467U (en) | 2020-10-09 | 2020-10-09 | Portable rain gauge calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022228325.9U CN214225467U (en) | 2020-10-09 | 2020-10-09 | Portable rain gauge calibrating device |
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| Publication Number | Publication Date |
|---|---|
| CN214225467U true CN214225467U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022228325.9U Active CN214225467U (en) | 2020-10-09 | 2020-10-09 | Portable rain gauge calibrating device |
Country Status (1)
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|---|---|
| CN (1) | CN214225467U (en) |
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- 2020-10-09 CN CN202022228325.9U patent/CN214225467U/en active Active
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