A smart liquid level sensor for underground parking garages

Abstract

This utility model relates to the field of sensor technology and discloses an intelligent liquid level sensor for underground parking garages. It includes a mounting plate, with a housing snap-fitted to the outer wall of the front end of the mounting plate. An upper positioning frame is fixedly connected to the upper part of the outer wall of the front end of the mounting plate, and a pressure sensor is fixedly connected to the inner wall of the upper positioning frame. A lower positioning frame is fixedly connected to the lower part of the outer wall of the front end of the mounting plate, and multiple guide rails are fixedly connected to the inner bottom surface of the lower positioning frame. A positioning rod is slidably connected to the center of the inner bottom surface of the lower positioning frame, and multiple guide balls are rotatably connected to the middle of the outer wall of the positioning rod. In this utility model, the liquid level sensor features a snap-fit ​​housing and a float block, which allows users to easily replace or clean the float block after prolonged use, reducing reliance on professional personnel, lowering the difficulty and cost of manual maintenance, and extending the service life of the float block.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to an intelligent liquid level sensor for underground parking garages. Background Technology

[0002] Liquid level sensors in underground parking garages are mainly used to monitor and manage drainage systems, rainwater discharge, groundwater levels, and water accumulation warnings to ensure the safety and normal operation of the garage. Underground parking garages are parking lots built below ground level, usually used in densely populated urban areas to alleviate the problem of insufficient ground space and provide safe and convenient parking for vehicles. They achieve multi-level or single-level parking spaces through underground structures.

[0003] However, traditional liquid level sensors typically lack a flexible adjustment mechanism and cannot be adjusted flexibly according to the actual usage needs of underground parking garages. This results in a fixed detection threshold, which fails to achieve optimal detection performance under different usage environments. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent liquid level sensor for underground parking garages. This liquid level sensor is equipped with a threaded rod, allowing users to adjust the position of the threaded rod within the positioning rod. This adjustment controls the required upward float height of the top rod when it contacts the pressure sensor, thereby adjusting the minimum liquid level that the sensor needs to detect. This allows users to flexibly adjust the detection threshold of the liquid level sensor according to the actual needs of the underground parking garage. Adjusting the trigger height can optimize the detection point, avoid false alarms or missed alarms, and thus enhance the stability and accuracy of the system.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A smart liquid level sensor for underground parking garages includes a mounting plate. A housing is snap-fitted to the outer wall of the front end of the mounting plate. An upper positioning frame is fixedly connected to the upper part of the outer wall of the front end of the mounting plate. A pressure sensor is fixedly connected to the inner wall of the upper positioning frame. A lower positioning frame is fixedly connected to the lower part of the outer wall of the front end of the mounting plate. Multiple guide rails are fixedly connected to the inner bottom surface of the lower positioning frame. A positioning rod is slidably connected to the center of the inner bottom surface of the lower positioning frame. Multiple guide balls are rotatably connected to the middle of the outer wall of the positioning rod. A base plate is fixedly connected to the lower surface of the positioning rod. Mounting slots are provided at the front ends of both sides of the lower surface of the base plate.

[0007] A fixing plate is snapped onto the lower surface of the base plate. Mounting blocks are fixedly connected to the front ends of both sides of the upper surface of the fixing plate. A floating block is fixedly connected to the lower surface of the mounting blocks. A first screw block is fixedly connected to the upper end of the outer wall of the positioning rod. A threaded rod is threaded onto the upper surface of the positioning rod. A locking nut is threaded onto the outer wall of the threaded rod. A second screw block is fixedly connected to the upper end of the outer wall of the threaded rod. A top rod is fixedly connected to the upper surface of the threaded rod.

[0008] With the above technical solution, the liquid level sensor is equipped with a snap-fit ​​housing and a float block, which makes it easier for users to replace or clean the float block after it has been used for a long time, reducing reliance on professional personnel, reducing the difficulty and cost of manual maintenance, and extending the service life of the float block.

[0009] Furthermore, multiple positioning clips are fixedly connected to both sides of the front outer wall of the mounting plate, multiple positioning slots are opened on both sides of the rear outer wall of the outer shell, and multiple fixing bolts are provided on the front outer wall of the mounting plate.

[0010] The above technical solution enables users to install and fix the mounting plate in the required underground garage using fixing bolts.

[0011] Furthermore, multiple through slots are provided on the lower part of the outer walls around the outer casing;

[0012] The above technical solution uses a channel to intercept larger types of waste, reducing the likelihood of them accumulating inside the casing.

[0013] Furthermore, a first magnetic block is fixedly connected to the middle of the inner top surface of the outer shell, and a second magnetic block is fixedly connected to the middle of the upper surface of the upper positioning frame;

[0014] The above technical solution uses the magnetic attraction between the first magnetic block and the second magnetic block to restrict the position of the outer shell during installation.

[0015] Furthermore, a data cable is fixedly connected to the upper part of the outer wall of the rear end of the mounting plate, and the data cable is electrically connected to the pressure sensor;

[0016] The above technical solution enables the pressure sensor data to be transmitted to the central control device via a data cable.

[0017] Furthermore, a guide block is fixedly connected to the upper end of the middle of the outer wall of the front end of the mounting plate, the top rod slides on the inner wall of the guide block, and the guide ball slides on the inner wall of the guide rail;

[0018] The above technical solution enables the positioning rod to rise or fall relatively smoothly via the guide ball and guide block.

[0019] Furthermore, a threaded groove is provided at the center of the upper surface of the positioning rod, and the threaded rod is threadedly engaged with the positioning rod through the threaded groove;

[0020] The above technical solution allows users to adjust the distance between the positioning rod and the pressure sensor by rotating the threaded rod.

[0021] Furthermore, the mounting slot engages with the mounting block.

[0022] The above technical solution enables users to attach the fixing plate to the base plate, allowing them to disassemble and replace it by turning the bolts.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes an intelligent liquid level sensor for underground parking garages. Compared with most traditional liquid level sensors for underground parking garages, this liquid level sensor is equipped with a threaded rod. Users can adjust the position of the threaded rod within the positioning rod, thereby adjusting the required upward floating height of the top rod when it contacts the pressure sensor. This allows the minimum liquid level value that the liquid level sensor needs to detect to be adjusted. This enables users to flexibly adjust the detection threshold of the liquid level sensor according to the actual needs of the underground parking garage. Adjusting the trigger height can optimize the detection point, avoid false alarms or missed alarms, and thus enhance the stability and accuracy of the system.

[0025] 2. The present invention proposes an intelligent liquid level sensor for underground parking garages. The liquid level sensor is equipped with a snap-fit ​​housing and a floating block, which makes it easier for users to replace or clean the floating block after a long period of use, reducing reliance on professional personnel, reducing the difficulty and cost of manual maintenance, and extending the service life of the floating block. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an intelligent liquid level sensor for underground parking garages proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the housing structure of an intelligent liquid level sensor for underground parking garages proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the lower positioning frame structure of an intelligent liquid level sensor for underground parking garages proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the fixing plate structure of an intelligent liquid level sensor for underground parking garages proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the threaded rod structure of an intelligent liquid level sensor for underground parking garages proposed in this utility model.

[0031] Legend:

[0032] 1. Mounting plate; 2. Positioning clip; 3. Housing; 4. Through groove; 5. Positioning slot; 6. First magnetic block; 7. Upper positioning frame; 8. Second magnetic block; 9. Data cable; 10. Fixing bolt; 11. Pressure sensor; 12. Guide block; 13. Lower positioning frame; 14. Guide rail; 15. Positioning rod; 16. Guide ball; 17. Base plate; 18. Mounting slot; 19. Fixing plate; 20. Mounting block; 21. Floating block; 22. Threaded groove; 23. First screw block; 24. Threaded rod; 25. Locking nut; 26. Second screw block; 27. Top rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] One embodiment of this utility model is provided:

[0035] Reference Figure 1 , 2 3. An intelligent liquid level sensor for underground parking garages includes a mounting plate 1. A housing 3 is snapped into the outer wall of the front end of the mounting plate 1. An upper positioning frame 7 is fixedly connected to the upper part of the outer wall of the front end of the mounting plate 1. A pressure sensor 11 is fixedly connected to the inner wall of the upper positioning frame 7. A lower positioning frame 13 is fixedly connected to the lower part of the outer wall of the front end of the mounting plate 1. Multiple guide rails 14 are fixedly connected to the inner bottom surface of the lower positioning frame 13. A positioning rod 15 is slidably connected to the center of the inner bottom surface of the lower positioning frame 13. Multiple guide balls 16 are rotatably connected to the middle of the outer wall of the positioning rod 15. A base plate 17 is fixedly connected to the lower surface of the positioning rod 15. Mounting slots 18 are opened at the front ends of both sides of the lower surface of the base plate 17.

[0036] A fixing plate 19 is snapped onto the lower surface of the base plate 17. Mounting blocks 20 are fixedly connected to the front ends of both sides of the upper surface of the fixing plate 19. A float block 21 is fixedly connected to the lower surface of the mounting blocks 20. A first screw block 23 is fixedly connected to the upper end of the outer wall of the positioning rod 15. A threaded rod 24 is threaded onto the upper surface of the positioning rod 15. A locking nut 25 is threaded onto the outer wall of the threaded rod 24. A second screw block 26 is fixedly connected to the upper end of the outer wall of the threaded rod 24. A top rod 27 is fixedly connected to the upper surface of the threaded rod 24. The liquid level sensor is equipped with a snap-fit ​​housing 3 and a float block 21, which makes it easier for users to replace or clean the float block 21 after it has been used for a long time. This reduces the reliance on professional personnel, reduces the difficulty and cost of manual maintenance, and extends the service life of the float block 21.

[0037] Reference Figure 1 , 2 3. Multiple positioning clips 2 are fixedly connected to both sides of the front outer wall of the mounting plate 1. Multiple positioning slots 5 are opened on both sides of the rear outer wall of the outer shell 3. Multiple fixing bolts 10 are provided on the front outer wall of the mounting plate 1, so that the user can install and fix the mounting plate 1 in the required underground garage by fixing bolts 10. Multiple through slots 4 are opened on the lower part of the outer walls of the outer shell 3. By setting through slots 4, various larger garbage can be intercepted, reducing the possibility of accumulation inside the outer shell 3. A first magnetic block 6 is fixedly connected to the middle of the top surface inside the outer shell 3. A second magnetic block 8 is fixedly connected to the middle of the upper surface of the upper positioning frame 7. The magnetic attraction between the first magnetic block 6 and the second magnetic block 8 restricts the position of the outer shell 3. A data cable 9 is fixedly connected to the upper part of the rear outer wall of the mounting plate 1. The data cable 9 is electrically connected to the pressure sensor 11, so that the data of the pressure sensor 11 can be transmitted to the central control device through the data cable 9.

[0038] Reference Figure 3 , 4 5. A guide block 12 is fixedly connected to the upper end of the middle of the outer wall of the front end of the mounting plate 1. The top rod 27 slides on the inner wall of the guide block 12, and the guide ball 16 slides on the inner wall of the guide rail 14, so that the positioning rod 15 can rise or fall relatively smoothly through the guide ball 16 and the guide block 12. A threaded groove 22 is opened at the center of the upper surface of the positioning rod 15. The threaded rod 24 is threadedly engaged with the positioning rod 15 through the threaded groove 22, so that the user can adjust the distance between the positioning rod 15 and the pressure sensor 11 by rotating the threaded rod 24. The mounting slot 18 is engaged with the mounting block 20, so that the user can attach the fixing plate 19 to the base plate 17, so that the user can disassemble and replace it by rotating the bolt.

[0039] Working principle: First, the mounting plate 1 is fixedly installed in the required underground garage using fixing bolts 10. The data cable 9 is connected to the central control equipment. The positioning rod 15 is positioned and limited by engaging the first screw block 23 with a wrench. Then, the position of the threaded rod 24 in the threaded groove 22 is adjusted by rotating the second screw block 26 with a wrench, so as to adjust the distance between the top rod 27 and the pressure sensor 11. The liquid in the underground garage (such as drainage system, rainwater discharge, water accumulation, etc.) is often affected by environmental changes. Adjusting the threaded rod 24 can easily cope with the liquid level changes under different seasons or weather conditions without replacing the equipment, thereby reducing the damage to the sensor caused by frequent use. The rise of the liquid will carry the float block 21 and the top rod 27 to rise. By squeezing the pressure sensor 11, the pressure change is caused, thereby detecting and judging the liquid height.

[0040] It should be noted that the accompanying drawings of the embodiments of this disclosure only involve structures relevant to the embodiments of this disclosure; other structures can be referred to with conventional designs. Where there is no conflict, the embodiments of this disclosure and the features described therein can be combined with each other to obtain new embodiments.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart liquid level sensor for underground parking garages, characterized in that, include: Mounting plate (1), the outer wall of the front end of the mounting plate (1) is fitted with a shell (3), the upper part of the outer wall of the front end of the mounting plate (1) is fixedly connected to an upper positioning frame (7), the inner wall of the upper positioning frame (7) is fixedly connected to a pressure sensor (11), the lower part of the outer wall of the front end of the mounting plate (1) is fixedly connected to a lower positioning frame (13), the inner bottom surface of the lower positioning frame (13) is fixedly connected to multiple guide rails (14), the center of the inner bottom surface of the lower positioning frame (13) is slidably connected to a positioning rod (15), the middle of the outer wall of the positioning rod (15) is rotatably connected to multiple guide balls (16), the lower surface of the positioning rod (15) is fixedly connected to a base plate (17), and the front ends of both sides of the lower surface of the base plate (17) are provided with mounting slots (18); The bottom plate (17) is fitted with a fixing plate (19) on its lower surface. The front ends of both sides of the upper surface of the fixing plate (19) are fixedly connected with mounting blocks (20). The lower surface of the mounting blocks (20) is fixedly connected with a floating block (21). The upper end of the outer wall of the positioning rod (15) is fixedly connected with a first screw block (23). The upper surface of the positioning rod (15) is threaded with a threaded rod (24). The outer wall of the threaded rod (24) is threaded with a locking nut (25). The upper end of the outer wall of the threaded rod (24) is fixedly connected with a second screw block (26). The upper surface of the threaded rod (24) is fixedly connected with a top rod (27).

2. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: Multiple positioning clips (2) are fixedly connected to both sides of the front outer wall of the mounting plate (1), multiple positioning slots (5) are opened on both sides of the rear outer wall of the outer shell (3), and multiple fixing bolts (10) are provided on the front outer wall of the mounting plate (1).

3. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: The lower part of the outer wall of the outer shell (3) is provided with multiple through slots (4).

4. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: A first magnetic block (6) is fixedly connected to the middle of the inner top surface of the outer shell (3), and a second magnetic block (8) is fixedly connected to the middle of the upper surface of the upper positioning frame (7).

5. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: A data cable (9) is fixedly connected to the upper part of the outer wall of the rear end of the mounting plate (1), and the data cable (9) is electrically connected to the pressure sensor (11).

6. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: A guide block (12) is fixedly connected to the upper end of the middle of the outer wall of the front end of the mounting plate (1). The top rod (27) slides on the inner wall of the guide block (12), and the guide ball (16) slides on the inner wall of the guide rail (14).

7. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: A threaded groove (22) is provided at the center of the upper surface of the positioning rod (15), and the threaded rod (24) is threadedly engaged with the positioning rod (15) through the threaded groove (22).

8. The intelligent liquid level sensor for underground parking garages according to claim 1, characterized in that: The mounting slot (18) engages with the mounting block (20).

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