Chain link type underwater wireless transmission sensor

Abstract

The utility model discloses a chain link type underwater wireless transmission sensor, which relates to the field of water treatment mud scraping equipment, and comprises an elastic body with a chain link type external structure and a strain gauge arranged in the elastic body; the battery module is arranged in the elastic body, and the battery module is connected with the strain gauges and the data processing module; the data processing module is arranged in the elastic body, the data processing module is respectively connected with the strain gauge and the battery module, and the data processing module transmits storage data to the data receiving module by adopting a wireless transmission LoRa technology; the data receiving module is arranged in an independent structural body and is used for receiving the data sent by the data processing module in real time; the sensor is of a chain link structure, can replace any working chain link in the mud scraper, can be conveniently arranged in the mud scraper, can measure, record and transmit the tension value borne by the chain link in real time when the device normally operates in sewage, and provides technical support for system model selection and equipment maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mud scraping equipment of water treatment, more particularly, relate to a chain link type underwater wireless transmission sensor. BACKGROUND

[0002] The non-metal chain type mud scraper is important mud scraping equipment of rectangular sedimentation tank, and the stress conditions of key components during operation are the focus of each water plant. The annular traction chain link of the non-metal chain type mud scraper mainly consists of a working chain link, a chain pin and a snap ring, and is made of high-strength engineering plastic, having the advantages of high strength, corrosion resistance, aging resistance and light weight, and is the most critical component of the whole machine. In order to master the real stress conditions of the chain link of the non-metal chain type mud scraper during operation in the sewage tank and avoid breakage caused by excessive stress, it is necessary to monitor the operation of the mud scraper in real time, thereby providing technical support for system selection and equipment maintenance. However, it is a big problem to realize the whole process monitoring without changing the occupied space and ensuring the normal operation of the mud scraper. SUMMARY

[0003] The utility model discloses a kind of chain link type underwater wireless transmission sensors, the sensor is chain link structure, any working chain link in mud scraper can be replaced, can real-time measurement, record and transmission the tension value that the chain link is subjected to when the device is normally operated in sewage, provide technical support for system selection and equipment maintenance.

[0004] To achieve the above object, the utility model provides a kind of chain link type underwater wireless transmission sensor, comprising:

[0005] Elastomer, external structure is chain link type, strain gauge is provided in the elastomer;

[0006] Battery module is set in the elastomer, and the battery module is connected with the strain gauge and the data processing module respectively;

[0007] Data processing module is set in the elastomer, and the data processing module is connected with the strain gauge and the battery module respectively, and the data processing module stores data in built-in SD card, and adopts wireless transmission LoRa technology to transmit data to the data receiving module.

[0008] Data receiving module is set in independent structure, and adopts wireless transmission LoRa technology, and receives the data sent by the data processing module.

[0009] Optionally, the elastic body comprises two elastic blocks parallel to each other, a connecting column and a sleeve are arranged between the two elastic blocks, two ends of the connecting column are respectively connected with the middle parts of the two elastic blocks perpendicularly, and two ends of the sleeve are respectively penetrated into one end of the two elastic blocks, and a first link hole is formed in the sleeve.

[0010] Optionally, the other end of the two elastic blocks is correspondingly provided with a second link hole.

[0011] Optionally, the strain gauges are arranged in the two elastic blocks respectively, and two ends of the strain gauges are respectively connected with the first link hole and the second link hole.

[0012] Optionally, a battery module compartment is arranged in one of the elastic blocks, and a data processing module compartment is arranged in the other elastic block.

[0013] Optionally, a wire tube is arranged in the connecting column, the wire tube is connected with the battery module compartment and the data processing module compartment, and a bridge circuit is arranged between the strain gauges and the data processing module.

[0014] Optionally, an SD card is arranged in the data processing module, and the SD card stores measurement data generated by the data processing module.

[0015] Optionally, the material of the elastic body is aluminum alloy.

[0016] The underwater wireless transmission sensor has the advantages that: the strain gauges are arranged in one elastic block, and the strain gauges are connected with the link holes at two ends, so that when the elastic body is deformed under tension, the resistance of the strain gauges changes, the corresponding millivolt-level potential output is obtained through the bridge circuit, the converted data is stored in the SD card, and wireless communication is performed through the LoRa technology, and the data is transmitted to the data receiving module. The sensor can replace any working link of the mud scraper, and does not affect the normal operation of the mud scraper, and the tension data is transmitted from the underwater to the data receiving module on the ground in real time along with the operation of the mud scraper.

[0017] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and wherein the same reference numbers and letters indicate corresponding parts throughout the several views.

[0019] Fig. 1A structure schematic view of a chain link type underwater wireless transmission sensor is shown according to an embodiment of the utility model.

[0020] Fig. 2 A sectional view of a chain link type underwater wireless transmission sensor is shown according to an embodiment of the utility model.

[0021] Fig. 3 A connection schematic view of a chain link type underwater wireless transmission sensor and a conventional chain link is shown according to an embodiment of the utility model.

[0022] Fig. 4 An application schematic view of a chain link type underwater wireless transmission sensor is shown according to an embodiment of the utility model.

[0023] Marked with a figure:

[0024] 1, strain gauge;2, battery;3, circuit board;4, elastic block;5, connecting column;6, sleeve;7, second chain link hole;8, battery compartment;9, chain link type underwater wireless transmission sensor;10, conventional chain link. Specific implementation

[0025] The preferred embodiments of the utility model will be described in more detail below. Although the preferred embodiments of the utility model are described below, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described here. On the contrary, these embodiments are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.

[0026] The utility model provides a chain link type underwater wireless transmission sensor, comprising:

[0027] Elastic body, external structure is chain link type, be provided with strain gauge in the elastic body;

[0028] Battery module is set up in the elastic body, the battery module is connected with strain gauge and data processing module respectively;

[0029] Data processing module is set up in the elastic body, data processing module is connected with strain gauge and battery module respectively, data processing module stores data in built-in SD card, and adopts wireless transmission LoRa technology to transmit data to data receiving module.

[0030] Data receiving module is set up in independent structure, adopts wireless transmission LoRa technology, receives the data that data processing module sends.

[0031] Specifically, the shell of the sensor adopts an elastomer, the elastomer is arranged in a link shape, and a strain gauge, a battery module and a data processing module are arranged in the elastomer, so that when the elastomer is deformed under tension, the strain gauge is also deformed, so that the resistance generated by the strain gauge is transmitted to the data processing module for signal processing, and finally the data is recorded in an SD card and transmitted to an independent data receiving module by using wireless transmission LoRa technology.

[0032] The data transmission by the LoRa technology is to realize real-time transmission of the underwater tension measurement data of the link, and the working principle is to generate a signal by linear frequency modulation (LFM), and the carrier frequency of each data packet changes linearly with time; this modulation mode allows the signal to maintain good penetration and anti-multipath fading capability in the sewage environment, thereby realizing long-distance transmission.

[0033] Optionally, the elastomer includes two parallel elastic blocks, a connecting column and a sleeve are arranged between the two elastic blocks, two ends of the connecting column are respectively connected to the middle portions of the two elastic blocks perpendicularly, and two ends of the sleeve respectively penetrate one end of the two elastic blocks, and a first link hole is formed in the sleeve.

[0034] Optionally, the other ends of the two elastic blocks are correspondingly provided with second link holes.

[0035] Specifically, the elastomer is composed of two elastic blocks, a connecting column and a sleeve, and the first link hole and the second link hole are arranged at the two ends of the elastic block, so that the two ends of the elastomer can be hinged with adjacent links, and during the rotation of the chain of the mud scraper, the tension received by the elastomer changes, and the connecting column and the sleeve connect the two elastic blocks into a whole, not only forming a link shape, but also ensuring the connection strength between the elastic blocks.

[0036] Optionally, the material of the elastomer is aluminum alloy.

[0037] Specifically, the elastomer is designed by using aluminum alloy material with high corrosion resistance and light weight. Since the link-shaped elastomer is a special-shaped structure, ordinary processing technology cannot realize one-time forming, so a four-axis machining center with high precision for processing complex curved surfaces is used for overall clamping and manufacturing, eliminating the measurement data errors caused by machining; and the data measurement accuracy of the elastomer is controlled within 1% through patch calibration test, meeting the actual measurement requirements.

[0038] Optionally, the strain gauges are arranged in the two elastic blocks, and two ends of the strain gauges are respectively connected to the first link hole and the second link hole.

[0039] Specifically, the two ends of the strain gauge are connected with two link hole, so that when the adjacent link is pulled, the strain gauge is also deformed, when the strain gauge is compressed or stretched, the resistance of the strain gauge changes, the corresponding millivolt level potential output is obtained through the bridge circuit, the tension value of the link in the sewage tank is collected through data processing and conversion, and the generated data is stored in the SD card, and wireless communication is performed through the LoRa technology.

[0040] Optionally, a battery module compartment is arranged in one elastic block, and a data processing module compartment is arranged in the other elastic block.

[0041] Optionally, a wire tube is arranged in the connecting column, the wire tube communicates the battery module compartment and the data processing module compartment, and the connecting circuit of the strain gauge and the data processing module is a bridge circuit.

[0042] Specifically, the battery module compartment and the data processing module compartment are arranged in the two elastic blocks respectively, and the two compartments are sealed by two cover plates respectively, so that the electrical components can be waterproofed, the battery module and the data processing module are connected through the wire tube in the connecting column, the circuit board is powered, when the strain gauge is compressed or stretched, the resistance of the strain gauge changes, the corresponding millivolt level potential output is obtained through the bridge circuit, the tension value of the link in the sewage tank is collected through data processing and conversion, and the data generated by the circuit board can be stored in the SD card, and finally wireless communication is performed through the LoRa technology.

[0043] In one embodiment, a strain gauge compartment is further arranged in the elastic block in which the battery module compartment and the data processing module compartment are arranged, the strain gauge is fixed to the elastic block in a pasting manner in the strain gauge compartment, and the wall thickness of the elastic block is accurately designed and calculated, so that the strain gauge can meet the deformation requirement.

[0044] Optionally, an SD card is built in the data processing module.

[0045] Specifically, when the sensor performs data processing, the mV signal is collected through the principle of the strain gauge, first, the non-standard resistance signal is converted into a standard analog electric signal (0.5V-2.5V) through analog conversion, and then the standard analog signal is converted into a digital signal and stored in the SD card through analog-digital conversion.

[0046] Optionally, the data receiving module performs wireless communication with the data processing module in real time.

[0047] Specifically, the link integrated with the sensor is installed in the mud scraper, and the data is transmitted to the data receiving module on the ground through wireless communication of the LoRa, so that the tension value of the link of the mud scraper during operation in the sewage can be measured, recorded and transmitted in real time, and technical support can be provided for system selection and equipment maintenance.

[0048] Embodiment

[0049] As Figs. 1 to 4 shown, the utility model provides a chain link type underwater wireless transmission sensor, including:

[0050] Elastic body, outside structure is chain link type, and strain gauge 1 is arranged in the elastic body;

[0051] Battery 2 is arranged in the elastic body, and the battery 2 is connected with strain gauge 1;

[0052] Circuit board 3 is arranged in the elastic body, and one end of circuit board 3 is connected with strain gauge 1;

[0053] Storage module is arranged in the elastic body, and the other end of circuit board is connected with storage module, and storage module adopts wireless transmission LoRa technology to transmit storage data outward.

[0054] In the embodiment, the elastic body includes two parallel elastic blocks 4, a connecting column 5 and a sleeve 6 are arranged between the two elastic blocks 4, the two ends of the connecting column 5 are vertically connected with the middle parts of the two elastic blocks 4 respectively, and the two ends of the sleeve 6 penetrate one end of the two elastic blocks 4 respectively, and a first chain link hole is formed in the sleeve 6.

[0055] In the embodiment, the other end of the two elastic blocks 4 is correspondingly provided with a second chain link hole 7.

[0056] In the embodiment, the strain gauge 1 is arranged in one elastic block, and the two ends of the strain gauge 1 are connected with the first chain link hole and the second chain link hole 7 respectively.

[0057] In the embodiment, a circuit board compartment is formed in one elastic block, the strain gauge 1 is arranged in the circuit board compartment, and a battery compartment 8 is formed in the other elastic block.

[0058] In the embodiment, a wire tube is arranged in the connecting column 5, the wire tube communicates the circuit board compartment and the battery compartment 8, and the connecting circuit of the strain gauge 1 and the circuit board 3 is a bridge circuit.

[0059] In the embodiment, the storage module is an SD card, and the SD card is connected with the circuit board 3.

[0060] In the embodiment, the material of the elastic body is aluminum alloy.

[0061] The utility model also provides a nonmetal chain type mud scraper, including a plurality of chain links, and at least one chain link is the chain link type underwater wireless transmission sensor 9.

[0062] In conclusion, the chain link type underwater wireless transmission sensor 9 is connected with the conventional chain link 10, and since both ends of the strain gauge 1 extend to the positions of the first chain link hole and the second chain link hole 7, when the mud scraper runs in the sewage pool, the pulling force received by the mud scraper is transmitted to the strain gauge 1, so that the resistance of the strain gauge 1 changes, a corresponding millivolt level potential output is obtained through the bridge circuit, the pulling force value of the chain link in the sewage pool can be collected by the circuit board 3 through data processing and conversion, and finally the data is stored in the SD card and transmitted outward through the LoRa technology.

[0063] The above has described the embodiments of the present application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A chain-link underwater wireless transmission sensor, characterized in that: include: An elastic body, the external structure of which is in the form of a chain link, wherein a strain gauge is provided inside the elastic body; A battery module is disposed in the elastic body, and the battery module is connected to the strain gauge and the data processing module respectively; A data processing module is provided in the elastic body, the data processing module is connected to the strain gauge and the battery module respectively, the data processing module stores data in a built-in SD card, and transmits the data to a data receiving module using wireless transmission LoRa technology; The data receiving module is provided in an independent structure and adopts the wireless transmission LoRa technology to receive the data sent by the data processing module; The elastic body includes two elastic blocks parallel to each other, and a connecting column and a sleeve are provided between the two elastic blocks. The two ends of the connecting column are respectively vertically connected to the middle parts of the two elastic blocks, and the two ends of the sleeve respectively pass through one end of the two elastic blocks. A first chain link hole is formed in the sleeve, and a second chain link hole is correspondingly provided at the other end of the two elastic blocks. The two ends of the elastic body can be hinged with adjacent chain links.

2. The chain-link underwater wireless transmission sensor according to claim 1, characterized in that: The strain gauges are respectively arranged in the two elastic blocks, and two ends of the strain gauges are respectively connected to the first chain link hole and the second chain link hole.

3. The chain-link underwater wireless transmission sensor according to claim 2, characterized in that: A battery module compartment is provided in one of the elastic blocks, and a data processing module compartment is provided in the other elastic block.

4. The chain-link underwater wireless transmission sensor according to claim 3, characterized in that: A wire pipe is provided in the connecting column, and the wire pipe connects the battery module compartment and the data processing module compartment. The connection circuit between the strain gauge and the data processing module is a bridge circuit.

5. The chain-link underwater wireless transmission sensor according to claim 1, characterized in that: The data processing module has a built-in SD card, and the SD card stores the measurement data generated by the data processing module.

6. The chain-link underwater wireless transmission sensor according to claim 1, characterized in that: The material of the elastic body is aluminum alloy.

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