Suspension type water level sensor, fixed support and balance weight integrated structure

Abstract

A suspension type water level sensor, fixing support and balance weight integrated structure comprises a balance weight, a plurality of supporting arms are symmetrically arranged on the two sides of the balance weight, a fixing support is arranged on the supporting arms, locking guide grooves are symmetrically formed in the fixing support, an opening groove is formed in the bottom of the fixing support, a sensor structure is arranged in the fixing support, and a water level sensor is arranged in the sensor structure. Locking hanging lugs matched with the locking guide grooves are symmetrically arranged on the sensor structure, a signal line is arranged at the top of the sensor, a transition piece matched with the open groove is arranged at the bottom of the sensor, a plurality of pressure measuring holes are formed in the bottom of the transition piece, and the pressure measuring holes are matched with pressure-sensitive elements arranged in the sensor structure. By the adoption of the structure, the problem that a sensor is not firmly bound through a traditional binding belt is solved, and device connection is firmer and more stable; a binding position does not need to be measured when the sensor is replaced every time, so that errors are avoided and the accuracy of a measurement result is not influenced; the device is not easy to be influenced by dissolved matters and impurities in a water body, is not easy to block a pressure measurement controller, and keeps a precise measurement result.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station detection equipment, in particular to a suspended water level sensor, a fixed support and a counterweight integrated structure. Background Art

[0002] Two pressure sensors are installed in the water collection well of the hydropower station. The pressure sensor outputs a 4-20mA current value according to the water level pressure. The controller reads the current value to calculate the actual water level in the water collection well. Dissolved matter and debris in the water body will be deposited at the bottom of the water collection well. If the pressure sensor is directly placed at the bottom of the water collection well, it will cause the pressure measuring hole to be blocked, thus affecting the accuracy of the measurement. Moreover, the traditional method of tying the sensor with a cable tie is not reliable. When the rolling belt is aged and damaged, the installation position of the sensor will move down, resulting in the measured water level not matching the actual water level. Every time the sensor is replaced, a soft ruler needs to be used to measure the binding position of the sensor, which is very inconvenient and prone to errors. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an integrated structure of a suspended water level sensor, a fixed support and a counterweight, which solves the problem of the unreliable binding of the sensor with a traditional cable tie, and the device connection is more reliable and stable; there is no need to measure the binding position every time the sensor is replaced, so as to avoid errors and affect the accuracy of the measurement results; it is not easily affected by dissolved matter and debris in the water body, and is not easy to clog the pressure control, so as to keep the measurement results accurate.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a suspended water level sensor, a fixed support and a counterweight integrated structure, including a counterweight, a plurality of support arms are symmetrically provided on both sides of the counterweight, a fixed support is provided on the support arm, a locking guide groove is symmetrically provided on the fixed support, an opening groove is provided at the bottom of the fixed support, a sensor structure is provided in the fixed support, locking ears matching the locking guide groove are symmetrically provided on the sensor structure, a signal line is provided on the top of the sensor structure, a transition piece matching the opening groove is provided at the bottom of the sensor structure, a plurality of pressure measuring holes are provided at the bottom of the transition piece, and the pressure measuring holes match the pressure sensitive element arranged in the sensor structure.

[0005] In a preferred solution, a lifting lug is provided on the top of the counterweight.

[0006] In a preferred solution, an elastic member base that cooperates with the sensor structure is provided in the fixed support.

[0007] In a preferred solution, the signal line is provided with a scale line.

[0008] In a preferred solution, the sensor structure contains a signal acquisition module, an analog-to-digital conversion module and a signal processing module.

[0009] In a preferred solution, the counterweight, support arm, fixed support and housing of the sensor structure are all made of stainless steel.

[0010] The utility model provides a suspended water level sensor, a fixed support and a counterweight integrated structure, which has the following beneficial effects by adopting the above structure:

[0011] (1) The problem of the traditional cable tie binding sensor being unreliable is solved, and the device connection is more reliable and stable;

[0012] (2) There is no need to measure the binding position every time the sensor is replaced, so as to avoid errors and affect the accuracy of the measurement results;

[0013] (3) It is not easily affected by dissolved matter and debris in the water body, and is not easy to clog the pressure control, thus maintaining accurate measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the fixed counterweight structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the sensor structure of the utility model.

[0018] In the figure: counterweight 1, lifting ear 2, support arm 3, fixed support 4, locking guide groove 5, sensor structure 6, transition piece 7, pressure measuring hole 8, locking hanging ear 9, signal line 10, scale line 11, opening groove 12, elastic member base 13. DETAILED DESCRIPTION

[0019] like Figure 1-3 In the invention, a suspended water level sensor, a fixed support and a counterweight integrated structure are provided, including a counterweight 1, a plurality of support arms 3 are symmetrically provided on both sides of the counterweight 1, a fixed support 4 is provided on the support arm 3, a locking guide groove 5 is symmetrically provided on the fixed support 4, an opening groove 12 is provided at the bottom of the fixed support 4, a sensor structure 6 is provided in the fixed support 4, locking ears 9 cooperating with the locking guide groove 5 are symmetrically provided on the sensor structure 6, a signal line 10 is provided on the top of the sensor structure 6, a transition piece 7 cooperating with the opening groove 12 is provided at the bottom of the sensor structure 6, a plurality of pressure measuring holes 8 are provided at the bottom of the transition piece 7, and the pressure measuring holes 8 cooperate with the pressure sensitive element arranged in the sensor structure 6.

[0020] In a preferred solution, a lifting lug 2 is provided on the top of the counterweight 1 to facilitate the overall lifting and lowering of the device.

[0021] In a preferred solution, the fixing support 4 is provided with an elastic member bottom bracket 13 that cooperates with the sensor structure 6. With the locking of the locking lug 9 and the locking guide groove 5, the locking is more secure and stable.

[0022] In a preferred solution, the signal line 10 is provided with a scale line 11 to assist position reading and avoid repeated measurements.

[0023] In a preferred solution, the sensor structure 6 contains a signal acquisition module, an analog-to-digital conversion module and a signal processing module, which is convenient for information collection and arrangement and has strong practicality.

[0024] In a preferred solution, the housings of the counterweight 1, the support arm 3, the fixed support 4 and the sensor structure 6 are all made of stainless steel. Stainless steel can be used for a long time without being easily rusted.

[0025] The method of using the utility model is as follows: the locking ears 9 on both sides of the sensor structure 6 are pressed into the fixed support 4 along the locking guide groove 5, and after clockwise rotation, the elastic member bottom bracket 13 in the fixed support 4 will press the sensor structure 6 upward with its rebound force;

[0026] The pressure measuring hole 8 passes through the opening slot 12 at the bottom of the fixed support 4, is exposed in the water, and has no shielding around it, so that no debris will accumulate and affect the measurement result;

[0027] Finally, hang the fixed device as a whole on one end of the wire rope, and lower the whole device into the water collection well. The scale line 11 indicates the cable length, which can determine the depth of the sensor under the water collection well. After installation, fix the other end of the wire rope on the hanging point at the wellhead to complete the positioning installation.

[0028] The beneficial effects of the utility model: it solves the problem of unreliable binding of sensors with traditional cable ties, and the device connection is more reliable and stable; there is no need to measure the binding position every time the sensor is replaced, thus avoiding errors and affecting the accuracy of the measurement results; it is not easily affected by dissolved matter and debris in the water body, and is not easy to clog the pressure control, thus maintaining accurate measurement results.

Claims

1. A suspended water level sensor, a fixed support and a counterweight integrated structure, comprising a counterweight (1), characterized in that: The counterweight (1) is symmetrically provided with a plurality of support arms (3) on both sides, a fixed support (4) is provided on the support arm (3), a locking guide groove (5) is symmetrically provided on the fixed support (4), an opening groove (12) is provided at the bottom of the fixed support (4), a sensor structure (6) is provided inside the fixed support (4), a locking lug (9) cooperating with the locking guide groove (5) is symmetrically provided on the sensor structure (6), a signal line (10) is provided at the top of the sensor structure (6), a transition piece (7) cooperating with the opening groove (12) is provided at the bottom of the sensor structure (6), a plurality of pressure measuring holes (8) are provided at the bottom of the transition piece (7), and the pressure measuring holes (8) cooperate with the pressure sensitive element arranged in the sensor structure (6).

2. The integrated structure of a suspended water level sensor, a fixed support and a counterweight according to claim 1, characterized in that: A lifting lug (2) is provided on the top of the counterweight (1).

3. The integrated structure of a suspended water level sensor, a fixed support and a counterweight according to claim 1, characterized in that: An elastic member base (13) that cooperates with the sensor structure (6) is provided in the fixed support (4).

4. The integrated structure of a suspended water level sensor, a fixed support and a counterweight according to claim 1, characterized in that: The signal line (10) is provided with a scale line (11).

5. The suspended water level sensor, fixed support and counterweight integrated structure according to claim 1, characterized in that: The sensor structure (6) contains a signal acquisition module, an analog-to-digital conversion module and a signal processing module.

6. The integrated structure of a suspended water level sensor, a fixed support and a counterweight according to claim 1, characterized in that: The outer shells of the counterweight (1), the support arm (3), the fixed support (4) and the sensor structure (6) are all made of stainless steel.

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