Doppler catch basin liquid level alarm device
Through the combination of Doppler ultrasonic level gauge and protection device, the problem of inadequate warning in the prior art is solved, real-time monitoring and early warning of the liquid level of rainwater wells is achieved, and the ability to prevent urban waterlogging in advance is ensured.
Patent Information
- Application Number
- CN202421078305.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing rainwater well liquid level monitoring device can only alarm when the liquid level reaches the cordon, and cannot be warning in advance based on the liquid level rise speed, and cannot be planned in advance to prevent urban flooding.
The Doppler ultrasonic level meter is used to monitor the level height and rise rate of rainwater wells in real time, calculate the level distance through sound pulse transmission and reception, and combine the design of protective cover, sealing sleeve and elastic ring to achieve protection and protection of transmission lines. , ensure the reliability and effectiveness of the device.
Real-time monitoring and early warning of the liquid level of rainwater wells is achieved, and the time when the liquid level reaches the warning position can be predicted in advance, making it easier to plan preventive measures in advance and avoid urban flooding.
Smart Images
Figure CN222211875U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid level monitoring, in particular to a Doppler rainwater well liquid level alarm device. Background Art
[0002] Water is the life and soul of a city. The separation of rainwater and sewage and the drainage system are important measures to protect the ecological environment of urban human settlements, improve the quality of life of residents, and promote sustainable economic and social development. Among them, rainwater wells are facilities to slow down ground subsidence and prevent the road from being flooded during heavy rains. Especially on rainy days, in order to prevent waterlogging, it is necessary to monitor the liquid level of rainwater wells, issue early warnings, and take corresponding measures to prevent problems before they happen and reduce the chance of urban waterlogging.
[0003] The Chinese patent with application number CN201920072588.X discloses a float switch for monitoring and warning the liquid level of a rainwater well, including an annular float, a reed switch, a guide rod, a guide rod fixing frame, a stainless steel shell and a fixing clamp. The guide rod fixing frame is a U-shaped clamp, which is welded on the inner wall of the stainless steel shell, and the lowest position is no more than 30mm from the top of the stainless steel shell; the reed switch is sealed in the guide rod, and the guide rod is fixedly welded to the installation position reserved by the guide rod fixing frame; the stainless steel shell is a hollow cylinder, and there is a circular hole on each of the upper and lower bottom surfaces of the stainless steel shell, and nine circular holes on the side; there is an annular magnet in the annular float, and the contact of the reed switch is connected to the external electrical control system. The device can alarm when the liquid level reaches the warning line, but when it is used, it can only work when the liquid level reaches the warning line, and it is impossible to plan the warning in advance according to the speed of the liquid level rise.
[0004] Based on this, the utility model designs a Doppler rainwater well liquid level alarm device to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a Doppler rainwater well liquid level alarm device.
[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0007] A Doppler rainwater well liquid level alarm device, comprising a rainwater well and a positioning plate, a well cover is arranged above the rainwater well, positioning holes are opened on the side of the positioning plate, the positioning holes are symmetrically arranged at the four corners of the side of the positioning plate, expansion bolts are installed in the positioning holes, a mounting frame is fixed with a central thread on the side of the positioning plate, a leakage hole is opened at the center of the bottom end of the mounting frame, a Doppler ultrasonic level meter is placed in the mounting frame, the Doppler ultrasonic level meter is connected to a transmission line, leakage holes are evenly opened on the central circumference of the top of the well cover, and a wire hole is opened on the side of the well cover;
[0008] Furthermore, the water leakage hole and the installation frame are not on the same vertical plane;
[0009] Furthermore, a protective cover is installed on the top of the installation frame, a circular hole is opened in the center of the top of the protective cover, and mounting holes are opened on the sides of the protective cover and the installation frame, and mounting screws are fixed to the inner threads of the mounting holes;
[0010] Furthermore, the protective cover is composed of two groups of half plates, the circular hole is composed of two groups of half holes, and the mounting hole is opened on the side of the half plate;
[0011] Furthermore, a sleeve is fixed on the top of the protective cover, and a protective cushion is fixed inside the sleeve;
[0012] Furthermore, a connecting plate is fixed to the bottom end of the sleeve, and a connecting bolt is threadedly fixed between the connecting plate and the protective cover;
[0013] Furthermore, the top of the sleeve contacts the end of the wire hole at the bottom of the manhole cover, the height of the protective cushion is equal to the height of the sleeve, and the inner diameter of the sleeve is greater than the diameter of the wire hole;
[0014] Furthermore, a sealing sleeve is installed in the internal thread of one end of the wire hole, the sealing sleeve is partially located outside the manhole cover, an elastic ring is installed at one end of the inner wall of the sealing sleeve, and the inner diameter of the elastic ring without deformation is smaller than the diameter of the transmission line; Beneficial Effects
[0015] 1. By setting up a Doppler ultrasonic level meter, the sound wave pulse is emitted, reflected by the liquid surface and received, and the distance from the sensor to the measured liquid surface is calculated by the time between the emission and reception of the sound wave. The height of the rainwater well liquid level can be monitored in real time and its rising rate can be monitored, so as to predict the time when it reaches the warning position, which is convenient for advance planning; by setting a protective cover, a round hole, a mounting hole and a mounting screw, the protective cover is fixed to the top of the mounting frame through the threaded cooperation of the mounting screw and the mounting hole, and the transmission line passes through the round hole and the wire hole to connect with the external equipment, so as to realize the protection of the Doppler ultrasonic level meter in the rainwater well;
[0016] 2. By setting up sleeves and protective cushions, the transmission line in the rainwater well is always covered and protected to prevent it from being damaged by rainwater; by setting up sealing sleeves and elastic rings, the sealing sleeve threads are fixed in the line hole, and the transmission line is elastically sealed by the elastic ring, which can prevent debris from entering the line hole, thereby ensuring that the transmission line is connected to the external equipment while achieving protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 This is a three-dimensional diagram of the main structure of a Doppler rainwater well liquid level alarm device of the utility model;
[0019] Figure 2 A three-dimensional diagram of the manhole cover structure of a Doppler rainwater well liquid level alarm device of the utility model;
[0020] Figure 3 A three-dimensional diagram of the structure inside a rainwater well of a Doppler rainwater well liquid level alarm device of the utility model;
[0021] Figure 4 It is a three-dimensional diagram of the enlarged structure of part A of a Doppler rainwater well liquid level alarm device of the utility model;
[0022] Figure 5 It is a three-dimensional diagram of the installation frame structure of a Doppler rainwater well liquid level alarm device of the utility model;
[0023] Figure 6 The utility model is a three-dimensional diagram of the installation structure of a Doppler ultrasonic level meter of a Doppler rainwater well liquid level alarm device.
[0024] The numbers in the figure represent:
[0025] 1. Rainwater well; 2. Positioning plate; 3. Well cover; 4. Positioning hole; 5. Expansion bolt; 6. Mounting frame; 7. Leakage hole; 8. Doppler ultrasonic level meter; 9. Transmission line; 10. Leakage hole; 11. Wire hole; 12. Protective cover; 13. Round hole; 14. Mounting hole; 15. Mounting screw; 16. Half plate; 17. Half hole; 18. Sleeve; 19. Protective cushion; 20. Connecting plate; 21. Connecting bolt; 22. Sealing sleeve; 23. Elastic ring. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] The utility model is further described below in conjunction with embodiments.
[0028] In some embodiments, please refer to the attached instructions. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A Doppler rainwater well liquid level alarm device comprises a rainwater well 1 and a positioning plate 2. A well cover 3 is arranged above the rainwater well 1. A positioning hole 4 is opened on the side of the positioning plate 2. The positioning holes 4 are symmetrically arranged at the four corners of the side of the positioning plate 2. An expansion bolt 5 is installed in the positioning hole 4. A mounting frame 6 is fixed with a thread at the center of the side of the positioning plate 2. A leakage hole 7 is opened at the bottom center of the mounting frame 6. A Doppler ultrasonic liquid level meter 8 is placed in the mounting frame 6. The Doppler ultrasonic liquid level meter 8 is connected to a transmission line 9. The top of the well cover 3 Leakage holes 10 are evenly opened on the central circumference, and the leakage holes 10 and the installation frame 6 are not in the same vertical plane. A wire hole 11 is opened on the side of the manhole cover 3, and a protective cover 12 is installed on the top of the installation frame 6. A circular hole 13 is opened at the center of the top of the protective cover 12. Mounting holes 14 are opened on the sides of the protective cover 12 and the installation frame 6. The mounting holes 14 are fixed with mounting screws 15 through the internal threads. The protective cover 12 is composed of two groups of half plates 16, and the circular hole 13 is composed of two groups of half holes 17. The mounting hole 14 is opened on the side of the half plate 16;
[0029] In the embodiment of the utility model, when it is used, the Doppler ultrasonic level meter 8 is placed in the installation frame 6, and the protective cover 12 is fixed to the top of the installation frame 6 by the threaded cooperation of the installation screw 15 and the installation hole 14. The transmission line 9 passes through the circular hole 13 and the wire hole 11 to connect with the external device, and then the positioning plate 2 is placed on the inner wall of the rainwater well 1, and the expansion bolt 5 is used to pass through the positioning hole 4 and hit on the inner wall of the rainwater well 1 to fix it, and finally the well cover 3 is closed. In rainy weather, the Doppler ultrasonic level meter 8 is used, and the sound wave pulse is emitted, which is received after being reflected by the liquid surface, and the distance from the sensor to the measured liquid surface is calculated by the time between the emission and reception of the sound wave. The height of the liquid level in the rainwater well 1 can be monitored in real time, and the rising rate can be monitored at the same time, so as to predict the time when the liquid reaches the warning position, which is convenient for advance planning;
[0030] In the embodiment of the utility model, by setting a Doppler ultrasonic level meter 8, a sound wave pulse is emitted, and is received after being reflected by the liquid surface, and the distance from the sensor to the surface of the measured liquid is calculated by the time between the emission and reception of the sound wave, so that the height of the liquid level in the rainwater well 1 can be monitored in real time and the rising rate can be monitored, so as to predict the time when it reaches the warning position, which is convenient for advance planning; by setting a protective cover 12, a circular hole 13, a mounting hole 14 and a mounting screw 15, the protective cover 12 is fixed to the top of the mounting frame 6 through the threaded cooperation of the mounting screw 15 and the mounting hole 14, and the transmission line 9 passes through the circular hole 13 and the wire hole 11 to be connected to the external device, so as to realize the protection of the Doppler ultrasonic level meter 8 in the rainwater well 1;
[0031] In some embodiments, Figure 4 and Figure 6 As shown, as a preferred embodiment of the utility model, a sleeve 18 is fixed to the top of the protective cover 12, a protective cushion 19 is fixed inside the sleeve 18, a connecting plate 20 is fixed to the bottom of the sleeve 18, a connecting bolt 21 is threadedly fixed between the connecting plate 20 and the protective cover 12, the top of the sleeve 18 is in contact with the end of the wire hole 11 at the bottom of the manhole cover 3, the height of the protective cushion 19 is equal to the height of the sleeve 18, the inner diameter of the sleeve 18 is larger than the diameter of the wire hole 11, a sealing sleeve 22 is threadedly installed at one end of the wire hole 11, the sealing sleeve 22 is partially located on the outside of the manhole cover 3, an elastic ring 23 is installed at one end of the inner wall of the sealing sleeve 22, and the inner diameter of the elastic ring 23 without deformation is smaller than the diameter of the transmission line 9;
[0032] In the embodiment of the utility model, when it is used, the Doppler ultrasonic level meter 8 is placed in the installation frame 6, and the protective cover 12 is fixed to the top of the installation frame 6 by the threaded cooperation of the mounting screw 15 and the mounting hole 14. The transmission line 9 passes through the circular hole 13, and then the sleeve 18 is fixed to the protective cover 12 by the connecting bolt 21 and the connecting plate 20. The transmission line 9 passes through the sleeve 18, the wire hole 11 and the sealing sleeve 22 to connect with the external device, and then the positioning plate 2 is placed on the inner wall of the rainwater well 1, and the expansion bolt 5 is used to pass through the positioning hole 4 and hit on the inner wall of the rainwater well 1 to fix it, and finally the well cover 3 is closed. In rainy weather, the Doppler ultrasonic level meter 8 is used, and the sound wave pulse is emitted, which is received after being reflected by the liquid surface, and the distance from the sensor to the measured liquid surface is calculated by the time between the emission and reception of the sound wave. The height of the liquid level of the rainwater well 1 can be monitored in real time, and the rising rate can be monitored at the same time, so as to predict the time when the liquid reaches the warning position, which is convenient for advance planning;
[0033] In the embodiment of the utility model, by providing a sleeve 18 and a protective cushion 19, the transmission line 9 located in the rainwater well 1 is always covered and protected to prevent it from being damaged by rainwater; by providing a sealing sleeve 22 and an elastic ring 23, the sealing sleeve 22 is threadedly fixed in the wire hole 11, and the transmission line 9 is elastically sealed by the elastic ring 23, which can prevent debris from entering the wire hole 11, thereby ensuring that the transmission line 9 is connected to the external device while achieving protection.
[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A Doppler rainwater well liquid level alarm device, comprising a rainwater well (1) and a positioning plate (2), Features: A manhole cover (3) is arranged above the rainwater well (1), a positioning hole (4) is provided on the side of the positioning plate (2), the positioning holes (4) are symmetrically arranged at the four corners of the side of the positioning plate (2), expansion bolts (5) are installed in the positioning holes (4), a mounting frame (6) is threadedly fixed at the center of the side of the positioning plate (2), a leakage hole (7) is provided at the center of the bottom end of the mounting frame (6), a Doppler ultrasonic level meter (8) is placed in the mounting frame (6), and the Doppler ultrasonic level meter (8) is connected to a transmission line (9), leakage holes (10) are uniformly provided on the center circumference of the top of the manhole cover (3), and a wire hole (11) is provided on the side of the manhole cover (3).
2. The Doppler rainwater well liquid level alarm device according to claim 1, It is characterized in that The water leakage hole (10) and the installation frame (6) are not on the same vertical plane.
3. The Doppler rainwater well liquid level alarm device according to claim 2, It is characterized in that A protective cover (12) is installed at the top of the installation frame (6), a circular hole (13) is provided at the center of the top of the protective cover (12), mounting holes (14) are provided on the sides of the protective cover (12) and the installation frame (6), and mounting screws (15) are fixed to the internal threads of the mounting holes (14).
4. The Doppler rainwater well liquid level alarm device according to claim 3, It is characterized in that The protective cover (12) is composed of two groups of half plates (16), the circular hole (13) is composed of two groups of half holes (17), and the mounting hole (14) is opened on the side of the half plate (16).
5. The Doppler rainwater well liquid level alarm device according to claim 4, It is characterized in that A sleeve (18) is fixed to the top end of the protective cover (12), and a protective cushion (19) is fixed inside the sleeve (18).
6. The Doppler rainwater well liquid level alarm device according to claim 5, It is characterized in that A connecting plate (20) is fixed to the bottom end of the sleeve (18), and a connecting bolt (21) is threadedly fixed between the connecting plate (20) and the protective cover (12).
7. The Doppler rainwater well liquid level alarm device according to claim 6, It is characterized in that The top of the sleeve (18) contacts the end of the wire hole (11) at the bottom of the manhole cover (3), the height of the protective cushion (19) is equal to the height of the sleeve (18), and the inner diameter of the sleeve (18) is greater than the diameter of the wire hole (11).
8. The Doppler rainwater well liquid level alarm device according to claim 7, It is characterized in that A sealing sleeve (22) is installed in the internal thread at one end of the wire hole (11), and a portion of the sealing sleeve (22) is located outside the manhole cover (3). An elastic ring (23) is installed at one end of the inner wall of the sealing sleeve (22), and the inner diameter of the elastic ring (23) when not deformed is smaller than the diameter of the transmission line (9).