A manhole cover with a combined detection component

Abstract

This utility model relates to a manhole cover with a combined detection component, including a manhole cover base, a connecting seat, a first connecting hole, and a mounting base. The mounting base has a central through hole, within which a mounting horizontal part is connected. The upper end of the mounting horizontal part has an axially positioned first mounting groove that does not penetrate the lower end of the mounting horizontal part. The side wall of the mounting horizontal part has a transversely positioned first connecting groove that connects the lower end of the first mounting groove to the inside of the tank. A pressure sensor is connected within the first mounting groove. A liquid level sensor is sealed and connected to the lower end of the mounting base. By integrating the pressure sensor and liquid level sensor into the mounting base, during assembly, the pressure sensor and liquid level sensor are first connected to the mounting base, and then one end of the mounting base is passed through the first connecting hole. This eliminates the need for multiple sensor mounting holes on the manhole cover base, resulting in high assembly efficiency, low leakage risk, low processing cost, and high safety.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically to a manhole cover with a combined detection component. Background Technology

[0002] Currently, the mechanical structure of traditional manhole covers is quite mature. However, IoT sensor technology has now penetrated into all walks of life, including the transportation of hazardous chemicals. During transportation, people need to monitor tank trucks and valves in real time and accurately, and need to know various information in the tank, including the pressure and liquid level of each tank. Therefore, liquid level sensors and pressure sensors are usually installed to obtain information.

[0003] However, in existing technologies, individual holes are typically created on the manhole cover to install each sensor. Too many connection points not only complicate the assembly process and reduce efficiency, but also increase the risk of leakage and raise manufacturing costs. Therefore, there is an urgent need to design and develop a manhole cover with a modular detection assembly. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a manhole cover with a combined detection component.

[0005] The technical solution adopted by this utility model is as follows: a manhole cover with a combined detection component, including a manhole cover base connected to a tank flange.

[0006] A connecting seat is provided on the base of the manhole cover. The connecting seat has a first connecting hole that extends axially through the center. A mounting base that is adapted to the shape of the first connecting hole and whose lower end passes through the first connecting hole and is located inside the tank is installed on the connecting seat. A protective cover is installed on the upper end of the mounting base.

[0007] The mounting base has a central through hole, through which a mounting horizontal part is connected. The upper end of the mounting horizontal part has an axially positioned first mounting groove that does not penetrate the lower end of the mounting horizontal part. The side wall of the mounting base has a transversely positioned first connecting groove that connects the lower end of the first mounting groove to the interior of the tank. A pressure sensor with a detection end corresponding to the first connecting groove is connected within the first mounting groove.

[0008] A liquid level sensor is sealed to the lower end of the mounting base.

[0009] Preferably, the first connecting hole has a first threaded connecting section on the inner periphery below the mounting horizontal part, the liquid level sensor has a liquid level detection end at its lower end and a connecting end at its upper end, and the outer periphery of the connecting end has a second threaded connecting section adapted to the first threaded connecting section and threadedly connected to the first connecting hole.

[0010] Preferably, the liquid level sensor has an abutment ring on the outer periphery below the connection end that abuts against the lower end face of the mounting base. The lower end face of the mounting base has a sealing groove, and a sealing element is connected in the sealing groove to form a seal between the lower end face of the mounting base and the upper end face of the abutment ring.

[0011] Preferably, the mounting section has a wire harness through slot extending axially.

[0012] Preferably, the upper end of the mounting horizontal part is further provided with a second mounting groove that is axially arranged and does not penetrate the lower end of the mounting horizontal part, and the side wall of the mounting horizontal part is provided with a second connecting groove that connects the lower end of the second mounting groove to the inside of the tank. A temperature sensor with a detection end corresponding to the second connecting groove is connected in the second mounting groove.

[0013] Preferably, the outer periphery of the mounting base and the outer periphery of the protective cover are respectively connected to a first connecting ring and a second connecting ring, and the two are fixedly connected to the connecting seat by threaded parts that pass through the protective cover and the mounting base in sequence.

[0014] Preferably, the upper inner circumference of the mounting base is provided with a plurality of abutting protrusions along its circumferential direction, and the upper end surface of each abutting protrusion forms a mounting groove with the inner circumference of the mounting base. A PCB board adapted to its shape is connected in the mounting groove, and the PCB board is electrically connected to each sensor.

[0015] The beneficial effects of this utility model are as follows: The pressure sensor and liquid level sensor are integrated into the mounting base. During assembly, the pressure sensor and liquid level sensor are first connected to the mounting base, then one end of the mounting base is passed through the first connecting hole, and finally the mounting base and the protective cover are connected. There is no need to open multiple sensor mounting holes on the manhole cover base. The assembly efficiency is high, the risk of leakage is low, the processing cost is low, and the safety is high. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a top view of an embodiment of the present utility model;

[0018] Figure 2 This is a front view structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a partial front view of the structure in an embodiment of this utility model;

[0020] Figure 4 This is a partial three-dimensional view of an embodiment of the present utility model;

[0021] Figure 5 This is a top view of some structures in the embodiments of this utility model;

[0022] Figure 6 for Figure 5 Sectional view at point AA;

[0023] Figure 7 for Figure 5 Sectional view at point BB;

[0024] Figure 8 for Figure 7 Enlarged view of the structure at point C;

[0025] In the diagram, 1. Manhole cover base; 2. Mounting base; 3. Protective cover; 4. Pressure sensor; 5. Liquid level sensor; 6. PCB board; 7. Temperature sensor; 12. Connecting seat; 21. Central through hole; 22. Mounting horizontal part; 23. First connecting groove; 24. Sealing groove; 25. Seal; 26. Second connecting groove; 27. First connecting ring; 28. Abutting protrusion; 29. ​​Mounting groove; 31. Second connecting ring; 51. Detection end; 52. Connecting end; 53. Second threaded connection section; 54. Abutting ring part; 121. First connecting hole; 221. First mounting groove; 222. Wire harness through groove; 223. Second mounting groove; 1211. First threaded connection section. Detailed Implementation

[0026] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0027] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0028] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0029] like Figures 1 to 8As shown in the figure, in an embodiment of this utility model, a manhole cover with a combined detection component includes a manhole cover base 1 connected to the tank flange.

[0030] A connecting seat 12 is provided on the manhole cover base 1. The connecting seat 12 has a first connecting hole 121 that passes through the center axially. A mounting base 2 that is adapted to the shape of the first connecting hole 121 and whose lower end passes through the first connecting hole 121 and is located inside the tank is installed on the connecting seat 12. A protective cover 3 is installed on the upper end of the mounting base 2.

[0031] The mounting base 2 has a central through hole 21, and a mounting horizontal part 22 is connected inside the central through hole 21. The upper end of the mounting horizontal part 22 is provided with a first mounting groove 221 that is axially arranged and does not penetrate through the lower end of the mounting horizontal part 22. The side wall of the mounting base 2 is provided with a first connecting groove 23 that connects the lower end of the first mounting groove 221 to the inside of the tank. A pressure sensor 4 with a detection end corresponding to the first connecting groove 23 is connected inside the first mounting groove 221.

[0032] A liquid level sensor 5 is sealed to the lower end of the mounting base 2.

[0033] This design integrates the pressure sensor and level sensor into the mounting base. During assembly, the pressure sensor and level sensor are first connected to the mounting base, then one end of the mounting base is passed through the first connecting hole. Finally, the mounting base is connected to the protective cover. This eliminates the need for multiple sensor mounting holes on the manhole cover base, resulting in high assembly efficiency, low leakage risk, low processing cost, and high safety. In this embodiment, a radar millimeter-wave level sensor is specifically used.

[0034] The first connecting hole 121 has a first threaded connecting section 1211 on the inner periphery below the mounting horizontal part 22. The liquid level sensor 5 has a liquid level detection end 51 at its lower end and a connecting end 52 at its upper end. The outer periphery of the connecting end 52 is provided with a second threaded connecting section 53 adapted to the first threaded connecting section 1211 and threadedly connected to the first connecting hole 121.

[0035] This setup increases the flexibility of liquid level sensor assembly.

[0036] The liquid level sensor 5 has an abutting ring 54 on the outer periphery below the connecting end 52, which abuts against the lower end face of the mounting base 2. The lower end face of the mounting base 2 is provided with a sealing groove 24, and a sealing element 25 is connected in the sealing groove 24 to form a seal between the lower end face of the mounting base 2 and the upper end face of the abutting ring 54.

[0037] With this setting, the abutment ring marks the position of the liquid level sensor. When the liquid level sensor is rotated until the abutment ring abuts the bottom of the mounting base, it is in place. At the same time, when the liquid level sensor is in place, it completes a sealed connection with the mounting base, making installation convenient and highly flexible.

[0038] The mounting horizontal section 22 has a wire harness through groove 222 that runs through it axially.

[0039] With this setup, the wiring harness of the liquid level sensor can be routed through the wiring harness slot.

[0040] The upper end of the mounting horizontal part 22 is also provided with a second mounting groove 223 that is axially arranged and does not penetrate the lower end of the mounting horizontal part 22. The side wall of the mounting horizontal part 2 is provided with a second connecting groove 26 that connects the lower end of the second mounting groove 223 to the inside of the tank. A temperature sensor 7 with a detection end corresponding to the second connecting groove 26 is connected in the second mounting groove 223.

[0041] This setting further enhances the functionality of this combined detection component.

[0042] The outer periphery of the mounting base 2 and the outer periphery of the protective cover 3 are respectively connected to the first connecting ring 27 and the second connecting ring 31. The two are fixedly connected to the connecting seat 12 by threaded parts that pass through the protective cover 3 and the mounting base 2 in sequence.

[0043] This design further enhances the ease of assembling the applicant's manhole cover.

[0044] The mounting base 2 has a plurality of abutting protrusions 28 arranged along its circumferential direction on the inner circumference of its upper end. The upper end face of each abutting protrusion forms a mounting groove 29 with the inner circumference of the mounting base 2. A PCB board 6 adapted to its shape is connected in the mounting groove 29. The PCB board 6 is electrically connected to each sensor.

[0045] In this embodiment, the abutting protrusion and the PCB board are also provided with mounting screw holes, and the two are connected and fixed by threaded parts.

[0046] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A manhole cover with a combined detection assembly, comprising a manhole cover base (1) connected to a tank flange, characterized in that: The manhole cover base (1) is provided with a connecting seat (12), the connecting seat (12) has an axially penetrating first connecting hole (121) at its center, the connecting seat (12) is equipped with an installation base (2) that is adapted to the shape of the first connecting hole (121) and whose lower end passes through the first connecting hole (121) and is located inside the tank, and a protective cover (3) is installed on the upper end of the installation base (2). The mounting base (2) has a central through hole (21), and a mounting horizontal part (22) is connected inside the central through hole (21). The upper end of the mounting horizontal part (22) is provided with a first mounting groove (221) that is axially arranged and does not penetrate the lower end of the mounting horizontal part (22). The side wall of the mounting base (2) is provided with a first connecting groove (23) that connects the lower end of the first mounting groove (221) to the inside of the tank. A pressure sensor (4) with a detection end corresponding to the first connecting groove (23) is connected inside the first mounting groove (221). A liquid level sensor (5) is sealed to the lower end of the mounting base (2).

2. A manhole cover with a combined detection assembly according to claim 1, characterized in that: The first connecting hole (121) is provided with a first threaded connecting section (1211) on the inner periphery below the mounting horizontal part (22). The liquid level sensor (5) has a liquid level detection end (51) at its lower end and a connecting end (52) at its upper end. The connecting end (52) is provided with a second threaded connecting section (53) adapted to the first threaded connecting section (1211) on its outer periphery and is threadedly connected to the first connecting hole (121).

3. A manhole cover with a combined detection assembly according to claim 2, characterized in that: The liquid level sensor (5) has an abutting ring (54) on the outer periphery below the connecting end (52) that abuts against the lower end face of the mounting base (2). The lower end face of the mounting base (2) has a sealing groove (24). A sealing element (25) is connected in the sealing groove (24) to form a seal between the lower end face of the mounting base (2) and the upper end face of the abutting ring (54).

4. A manhole cover with a combined detection assembly according to claim 1, characterized in that: The mounting horizontal part (22) has a wire harness through groove (222) axially through it.

5. A manhole cover with a combined detection assembly according to claim 1, characterized in that: The upper end of the mounting horizontal part (22) is also provided with a second mounting groove (223) that is axially arranged and does not penetrate the lower end of the mounting horizontal part (22). The side wall of the mounting horizontal part (2) is provided with a second connecting groove (26) that connects the lower end of the second mounting groove (223) to the inside of the tank. A temperature sensor (7) with a detection end corresponding to the second connecting groove (26) is connected in the second mounting groove (223).

6. A manhole cover with a combined detection assembly according to claim 1, characterized in that: The outer periphery of the mounting base (2) and the outer periphery of the protective cover (3) are respectively connected to the first connecting ring (27) and the second connecting ring (31), and are fixedly connected to the connecting seat (12) by threaded parts that pass through the protective cover (3) and the mounting base (2) in sequence.

7. A manhole cover with a combined detection assembly according to any one of claims 1-6, characterized in that: The mounting base (2) has several abutting protrusions (28) arranged along its circumference on the upper inner circumference. The upper surface of each abutting protrusion forms a mounting groove (29) with the inner circumference of the mounting base (2). A PCB board (6) adapted to its shape is connected in the mounting groove (29). The PCB board (6) is electrically connected to each sensor.

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