A manhole liquid level sensor mounting assembly

Abstract

The utility model discloses a kind of inspection well liquid level sensor installation components, it relates to inspection well pipe network monitoring technical field, it includes first pole body and positioning element, by setting hollow first pole body, and positioning element with conical structure is set in one end of first pole body;When using, the guidance and puncture effect of the conical structure of positioning element, first pole body is inserted into the soil in the bottom of inspection well, overflow hole on first pole body makes that the liquid in inspection well can enter the inner chamber of first pole body, after the pressure sensor of immersion type liquid level meter is immersed into the inner chamber of first pole body, the liquid level height of the inner chamber of inspection well can be detected by the pressure sensor in the inner chamber of first pole body, and pressure sensor is located in the fixed inner chamber of first pole body, pressure sensor does not move with the flow of liquid, to prevent connecting line from repeatedly tensile stress, effectively protect the installation structure and connecting line of display element.

Description

Technical Field

[0001] This utility model relates to the field of manhole network monitoring technology, and in particular to a manhole liquid level sensor installation assembly. Background Technology

[0002] Manholes are an important component of underground pipe systems (such as sewage, stormwater, or drainage systems). Monitoring the liquid level within manholes is crucial for ensuring the proper functioning of the system, preventing problems, and protecting the environment and public safety. Manholes are monitored in real-time using online level gauges to help detect anomalies (such as overflows or blockages), thereby protecting the pipe network from damage and reducing environmental pollution. Submersible level gauges are typically used for manhole level monitoring.

[0003] Submersible level gauges typically consist of a pressure sensor, connecting lines, and a display element connected in sequence. In use, the pressure sensor is submerged at the bottom of the manhole to measure the static pressure of the liquid, converting it into an electrical signal which is then transmitted to the display element via the connecting lines, allowing real-time monitoring of the manhole's liquid level changes. However, in existing submersible level gauges, the display element is usually installed at the top of the manhole or outside the manhole, while the pressure sensor is typically submerged directly in the liquid at the bottom. As the liquid flows through the manhole, the pressure sensor is impacted by the fluid, causing it to move and pull on the display element via the connecting lines. Prolonged impact from the liquid inside the manhole can easily damage the display element's mounting structure or the connecting lines. Utility Model Content

[0004] The main purpose of this invention is to propose a manhole liquid level sensor installation assembly, which aims to solve the technical problem that existing liquid level gauge pressure sensors are easily moved by the liquid flow when impacted by the internal liquid pressure of the manhole.

[0005] To achieve the above objectives, this utility model proposes a manhole liquid level sensor installation assembly, comprising: a first rod body, wherein a through hole is formed along the length direction of the first rod body, and a plurality of flow holes are formed at the bottom end of the peripheral wall of the first rod body; a positioning element, wherein the positioning element is disposed at one end of the first rod body, and the positioning element blocks one end of the through hole of the first rod body, the first rod body and the positioning element together form a space for accommodating a pressure sensor, and the end of the positioning element away from the first rod body is tapered.

[0006] Optionally, one end of the first rod is provided with an end cap, the end cap having a threaded hole, the positioning element being threadedly connected to the end cap, and the end of the positioning element near the first rod passing through the end cap into the inner cavity of the first rod; the first rod is also provided with a clamping element, the clamping element passing through the peripheral wall of the first rod and clamping the positioning element at one end located in the inner cavity of the first rod.

[0007] Optionally, the clamping element is a clamping bolt. The end of the peripheral wall of the first rod near the end cover has a threaded hole for installing the clamping element. The end face of the clamping element presses against the peripheral wall of the positioning element, and the axis of the clamping element is perpendicular to the axis of the positioning element.

[0008] Optionally, a nut is provided on the end face of the end cap, which is used to increase the length of the threaded connection between the end cap and the positioning element.

[0009] Alternatively, the end cap can be welded to the first rod, detachably connected, or integrally formed; the nut is welded to the end face of the end cap away from the first rod, and the nut and the threaded hole of the end cap are coaxially arranged.

[0010] Optionally, a hollow second rod is also included, with the end of the first rod away from the positioning element connected to the second rod via a connecting sleeve.

[0011] Optionally, a first mounting hole is provided at the end of the peripheral wall of the first rod away from the positioning element, and a second mounting hole is provided at the end of the peripheral wall of the connecting sleeve. The connecting sleeve is fitted into the inner cavity of the first rod, and the first mounting hole is aligned with the second mounting hole. A first connector passes through the first mounting hole and the second mounting hole, thereby connecting the first rod to the connecting sleeve. A third mounting hole is provided at the other end of the peripheral wall of the connecting sleeve, and a fourth mounting hole is provided at the end of the peripheral wall of the second rod. The end of the connecting sleeve away from the first rod is fitted into the second rod, and the third mounting hole is aligned with the fourth mounting hole. A second connector passes through the third mounting hole and the fourth mounting hole, thereby connecting the second rod to the connecting sleeve.

[0012] Optionally, a limiting protrusion is provided on the outer peripheral wall of the connecting sleeve, with the two sides of the limiting protrusion abutting against the end walls of the first rod and the second rod, respectively.

[0013] Optionally, a number of second rods are provided at the end of the first rod away from the positioning element, and the number of second rods are connected in sequence, with adjacent second rods connected by a connecting sleeve.

[0014] Optionally, a fifth mounting hole is provided at the end of the second rod's peripheral wall away from the fourth mounting hole. The fifth mounting hole is used to connect with the second mounting hole of the adjacent connecting sleeve.

[0015] This utility model provides a manhole liquid level sensor installation assembly. It features a hollow first rod with a conical positioning element at one end. During use, the conical positioning element guides and penetrates the first rod into the soil at the bottom of the manhole, securing it in place. The first rod has a flow hole on its peripheral wall at the bottom of the manhole, allowing liquid to enter its inner cavity. When the pressure sensor of the submersible liquid level gauge is inserted into the cavity, it detects the liquid level. Because the pressure sensor is fixed within the first rod cavity, it does not move with the liquid flow, preventing repeated tensile stress on the connecting lines and effectively protecting the mounting structure and wiring of the display element. 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, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a manhole liquid level sensor mounting assembly according to the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of region C in the middle;

[0020] Figure 4 for Figure 1 Enlarged view of region B in the middle;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of region D in the middle;

[0022] Figure 6 This is a schematic diagram of the connecting sleeve structure;

[0023] Figure 7 This is an exploded diagram showing a first rod connected to multiple second rods.

[0024] Explanation of icon numbers:

[0025] 1. First rod body; 11. Flow hole; 12. First mounting hole; 13. End cap; 14. Clamping element; 2. Connecting sleeve; 21. Second mounting hole; 22. Limiting protrusion; 23. Third mounting hole; 3. Second rod body; 31. Fourth mounting hole; 32. Fifth mounting hole; 4. Positioning element.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, provided that they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This utility model proposes a manhole liquid level sensor mounting assembly.

[0031] In the embodiments of this utility model, such as Figures 1-5The diagram shows a manhole liquid level sensor mounting assembly, which includes a first rod 1 and a positioning element 4. The first rod 1 is hollow, and the inner cavity of the first rod 1 is used to accommodate a pressure sensor. A plurality of flow holes 11 are formed on the peripheral wall of the first rod 1. The positioning element 4 is disposed at one end of the first rod 1, and the flow holes 11 are disposed at the end of the outer peripheral wall of the first rod 1 near the positioning element 4. The end of the positioning element 4 away from the first rod 1 is tapered.

[0032] Specifically, the first rod body 1 has a through hole along its length, and several flow holes 11 are provided at the bottom of the peripheral wall of the first rod body 1. The bottom of the first rod body 1 refers to the end located at the bottom of the manhole during use.

[0033] Specifically, a hollow first rod 1 is provided, and a positioning element 4 with a conical structure is provided at one end of the first rod 1. In use, the operator directly inserts the first rod 1 into the soil at the bottom of the manhole from outside the manhole, using the guiding and piercing effect of the conical structure of the positioning element 4, to achieve positioning and fixation of the first rod 1. The first rod 1 has a flow hole 11 on the peripheral wall at the bottom of the manhole, which allows the liquid in the manhole to enter the inner cavity of the first rod 1. After the pressure sensor of the submersible level gauge is inserted into the inner cavity of the first rod 1, the pressure sensor located in the inner cavity of the first rod 1 can detect the liquid level height in the manhole. Since the pressure sensor is located in the fixed inner cavity of the first rod 1, the pressure sensor will not move with the flow of liquid, thereby preventing the connection line from being subjected to repeated tensile stress and effectively protecting the installation structure and connection line of the display element.

[0034] More specifically, the end of the first rod 1 furthest from the positioning element 4 should be connected to the outside, so that the end of the first rod 1 furthest from the positioning element 4 is connected to atmospheric pressure, preventing the air pressure inside the first rod 1 from affecting the manhole liquid entering the inner cavity of the first rod 1.

[0035] Optionally, one end of the first rod 1 is provided with an end cap 13, the end cap 13 has a threaded hole, the positioning element 4 is threadedly connected to the end cap 13, and the end of the positioning element 4 near the first rod 1 passes through the end cap 13 and enters the inner cavity of the first rod 1; the first rod 1 is also provided with a pressing element 14, the pressing element 14 passes through the peripheral wall of the first rod 1 and presses against the end of the positioning element 4 located in the inner cavity of the first rod 1.

[0036] Specifically, the first rod 1 is provided with an end cap 13 at one end near the positioning element 4; the positioning element 4 is a columnar structure, and the two ends of the positioning element 4 are respectively provided with a tapered structure and an external thread. The clamping element 14 abuts against the positioning element 4, thereby applying a lateral fastening force to the positioning element 4. The lateral clamping force effectively prevents the positioning element 4 from loosening due to the impact or vibration of the liquid in the manhole, ensuring that the positioning element 4 will not loosen or shift due to external force based on the threaded connection.

[0037] In this embodiment, by providing an end cap 13 at one end of the first rod 1, an installation position is provided for the positioning element 4. The positioning element 4 and the end cap 13 are detachably connected. When the inside of the first rod 1 is blocked, the positioning element 4 can be removed to clear the blockage inside the first rod 1, which improves the durability and maintenance convenience of the component and extends the service life of the component.

[0038] In this embodiment, the clamping element 14 can be a fastener such as a bolt or screw.

[0039] Preferably, the clamping element 14 is a clamping bolt. The end of the peripheral wall of the first rod body 1 near the end cover 13 is provided with a threaded hole for installing the clamping element 14. The end face of the clamping element 14 is pressed against the peripheral wall of the positioning element 4, and the axis of the clamping element 14 is perpendicular to the axis of the positioning element 4.

[0040] Specifically, the threaded hole on the periphery of the first rod 1 does not interfere with the flow hole 11, and by setting the clamping element 14 to be threadedly connected to the first rod 1, the lateral force applied by the clamping element 14 to the positioning element 4 can be adjusted by rotating the clamping element 14, making it more flexible to use.

[0041] Optionally, a nut is provided on the end face of the end cap 13, which is used to increase the length of the threaded connection between the end cap 13 and the positioning element 4.

[0042] Specifically, the nut is welded to the end face of the end cap 13 away from the first rod 1, and the nut is coaxial with the threaded hole of the end cap 13. When the first rod 1 is impacted by water flow, the connection between the first rod 1 and the positioning element 4 will be subjected to an impact force perpendicular to the axial direction of the positioning element 4. By setting the nut on the end cap 13, the length of the threaded connection section between the first rod 1 and the end cap 13 is increased, thereby increasing the force-bearing area at the connection between the first rod 1 and the positioning element 4. This prevents the contact area between the end cap 13 and the positioning element 4 from being too small, which would lead to excessive stress concentration, and effectively protects the connection between the positioning element 4 and the first rod 1.

[0043] Optionally, the end cap 13 can be welded to the first rod body 1, detachably connected, or integrally formed.

[0044] Specifically, the end cap 13 and the first rod 1 are detachably connected, preferably by a threaded connection. The threaded connection between the end cap 13 and the first rod 1 facilitates the installation and removal of the end cap 13, making it easier and faster to clear blockages from the inner cavity of the first rod 1.

[0045] Optionally, it also includes a hollow second rod 3, with the end of the first rod 1 away from the positioning element 4 connected to the second rod 3 via a connecting sleeve 2.

[0046] Specifically, when the manhole is deep enough, operators may not be able to directly insert the first rod 1 into the bottom of the manhole from the outside. However, designing a longer first rod 1 to match the manhole's depth would easily lead to transportation difficulties. Therefore, when the length of the first rod 1 cannot be adapted to the height of the manhole, a hollow second rod 3 can be installed at the other end of the first rod 1 via a connecting sleeve 2, thereby lengthening the first rod 1. This allows operators to assemble the first rod 1 from the outside of the manhole and install it inside.

[0047] Optionally, a first mounting hole 12 is provided at the end of the peripheral wall of the first rod 1 away from the positioning element 4, and a second mounting hole 21 is provided at the end of the peripheral wall of the connecting sleeve 2. The connecting sleeve 2 is fitted into the inner cavity of the first rod 1, and the first mounting hole 12 is aligned with the second mounting hole 21. The first connector passes through the first mounting hole 12 and the second mounting hole 21, thereby connecting the first rod 1 and the connecting sleeve 2 together. A third mounting hole 23 is provided at the other end of the peripheral wall of the connecting sleeve 2, and a fourth mounting hole 31 is provided at the end of the peripheral wall of the second rod 3. The end of the connecting sleeve 2 away from the first rod 1 is fitted into the second rod 3, and the third mounting hole 23 is aligned with the fourth mounting hole 31. The second connector passes through the third mounting hole 23 and the fourth mounting hole 31, thereby connecting the second rod 3 and the connecting sleeve 2 together.

[0048] Specifically, the inner cavity of the connecting sleeve 2 is connected to the inner cavities of the first rod 1 and the second rod 3, so that after the first rod 1 is installed at the bottom of the manhole, the operator can insert the pressure sensor downward through the top of the second rod 3, and the pressure sensor will sink to the bottom of the manhole.

[0049] In this embodiment, the peripheral wall of the connecting sleeve 2 has a transition fit with both the first rod 1 and the second rod 3. The first mounting hole 12, the second mounting hole 21, the third mounting hole 23, and the fourth mounting hole 31 are all threaded holes. Correspondingly, the first connector and the second connector are both bolts or screws. After the connecting sleeve 2 is fitted into the inner cavity of the first rod 1, the first mounting hole 12 and the second mounting hole 21 are aligned by rotating the connecting sleeve 2. Then, the first connector is screwed in, fixing the first rod 1 and the connecting sleeve 2 together.

[0050] Preferably, the first rod body 1 has at least two evenly distributed first mounting holes 12 in the circumferential direction, and correspondingly, the connecting sleeve 2 also has at least two second mounting holes 21 at the corresponding position, so that the first connector can fix the first rod body 1 and the connecting sleeve 2 from multiple directions.

[0051] Similarly, the connection method of the second rod 3, the connecting sleeve 2, and the second connector is the same as the connection method of the first rod 1, the connecting sleeve 2, and the first connector described above, and will not be repeated here.

[0052] Optional, such as Figures 1-6 As shown, a limiting protrusion 22 is provided on the outer peripheral wall of the connecting sleeve 2, and the two sides of the limiting protrusion 22 abut against the end walls of the first rod 1 and the second rod 3, respectively.

[0053] Specifically, the limiting protrusion 22 is an annular protrusion that is continuously or intermittently arranged along the outer peripheral wall of the connecting sleeve 2, and the limiting protrusion 22 is located in the middle of the connecting sleeve 2, so that the peripheral wall lengths at both ends of the connecting sleeve 2 are equal. The outer diameter of the limiting protrusion 22 is larger than the outer diameter of the first rod 1 and the second rod 3, so that after the two ends of the connecting sleeve 2 are fitted into the first rod 1 and the second rod 3, the operator can rotate the limiting protrusion 22 to align the first mounting hole 12 with the second mounting hole 21, or to align the third mounting plate hole with the fourth mounting hole 31. At the same time, the limiting protrusion 22 prevents the connecting sleeve 2 from falling into the first rod 1, thus facilitating the quick installation of the first rod 1 and the second rod 3.

[0054] Optional, such as Figure 7 As shown, a plurality of second rods 3 are provided at the end of the first rod 1 away from the positioning element 4. The plurality of second rods 3 are connected in sequence, and adjacent second rods 3 are connected by connecting sleeves 2.

[0055] Specifically, when the manhole is deep enough, the combined length of a single second rod 3 and first rod 1 may still prevent operators from directly inserting the first rod 1 to the bottom of the manhole from the outside. This can be addressed by adding a connecting sleeve 2 and a second rod 3, with the added second rod 3 connected sequentially through the connecting sleeve 2. Furthermore, both the second rod 3 and the first rod 1 can be set to standard lengths. For example, both the first rod 1 and the second rod 3 can be set to 1m in length. Adding corresponding second rod 3s and connecting sleeves 2 based on the actual depth of the manhole further facilitates the standardization and adaptability of the installation components, while also simplifying production and transportation.

[0056] Optionally, a fifth mounting hole 32 is also provided at the end of the second rod body 3 away from the fourth mounting hole 31. The fifth mounting hole 32 is used to connect with the second mounting hole 21 of the adjacent connecting sleeve 2.

[0057] Specifically, after the fifth mounting hole 32 is aligned with the second mounting hole 21, the connecting sleeve 2 and the second rod body 3 are locked together by the first connector. The connection method of the first connector, the second mounting hole 21 and the fifth mounting hole 32 is the same as the connection method of the first connector, the second mounting hole 21 and the first mounting hole 12, and will not be described again here.

[0058] Preferably, by setting the first mounting hole 12, the second mounting hole 21, the third mounting hole 23, the fourth mounting hole 31 and the fifth mounting hole 32 to the same size, the first connector and the second connector can be used interchangeably, thereby increasing the versatility of the components.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A manhole liquid level sensor mounting assembly, characterized in that, include: The first rod (1) has a through hole along its length and a plurality of flow holes (11) are provided at the bottom of the peripheral wall of the first rod (1). The positioning element (4) is disposed at one end of the first rod (1) and blocks one end of the through hole of the first rod (1). The first rod (1) and the positioning element (4) together form a space for accommodating the pressure sensor. The end of the positioning element (4) away from the first rod (1) is tapered.

2. The manhole liquid level sensor mounting assembly as described in claim 1, characterized in that, One end of the first rod (1) is provided with an end cap (13), the end cap (13) has a threaded hole, the positioning element (4) is threadedly connected to the end cap (13), and the end of the positioning element (4) near the first rod (1) passes through the end cap (13) and enters the inner cavity of the first rod (1). The first rod (1) is also provided with a clamping element (14), which passes through the peripheral wall of the first rod (1) and abuts against the positioning element (4) located at one end of the inner cavity of the first rod (1).

3. The manhole liquid level sensor installation assembly as described in claim 2, characterized in that, The clamping element (14) is a clamping bolt. The end of the peripheral wall of the first rod (1) near the end cap (13) is provided with a threaded hole for installing the clamping element (14). The end face of the clamping element (14) is pressed against the peripheral wall of the positioning element (4), and the axis of the clamping element (14) is perpendicular to the axis of the positioning element (4).

4. The manhole liquid level sensor installation assembly as described in claim 2, characterized in that, A nut is provided on the end face of the end cap (13), and the nut is used to increase the length of the threaded connection between the end cap (13) and the positioning element (4).

5. The manhole liquid level sensor mounting assembly as described in claim 4, characterized in that, The end cap (13) is welded to the first rod body (1), detachably connected, or integrally formed; The nut is welded to the end face of the end cap (13) away from the first rod (1), and the nut is coaxially arranged with the threaded hole of the end cap (13).

6. The manhole liquid level sensor installation assembly as described in claim 1, characterized in that, It also includes a hollow second rod (3), and the end of the first rod (1) away from the positioning element (4) is connected to the second rod (3) through a connecting sleeve (2).

7. The manhole liquid level sensor mounting assembly as described in claim 6, characterized in that, The first rod (1) has a first mounting hole (12) at one end of its peripheral wall away from the positioning element (4), and the connecting sleeve (2) has a second mounting hole (21) at one end of its peripheral wall. The connecting sleeve (2) is fitted into the inner cavity of the first rod (1), and the first mounting hole (12) is aligned with the second mounting hole (21). The first connector passes through the first mounting hole (12) and the second mounting hole (21), thereby connecting the first rod (1) and the connecting sleeve (2) together. The connecting sleeve (2) has a third mounting hole (23) at one end of its peripheral wall, and the second rod (3) has a fourth mounting hole (31) at one end of its peripheral wall. The end of the connecting sleeve (2) away from the first rod (1) is fitted into the second rod (3), and the third mounting hole (23) is aligned with the fourth mounting hole (31). The second connector passes through the third mounting hole (23) and the fourth mounting hole (31), thereby connecting the second rod (3) with the connecting sleeve (2).

8. The manhole liquid level sensor mounting assembly as described in claim 6, characterized in that, The connecting sleeve (2) has a limiting protrusion (22) on its outer peripheral wall. The two sides of the limiting protrusion (22) abut against the end walls of the first rod (1) and the second rod (3), respectively.

9. A manhole liquid level sensor mounting assembly as described in claim 7, characterized in that, The first rod (1) is provided with a plurality of second rods (3) at one end away from the positioning element (4), and the plurality of second rods (3) are connected in sequence, with adjacent second rods (3) connected by a connecting sleeve (2).

10. The manhole liquid level sensor mounting assembly as described in claim 9, characterized in that, The second rod (3) has a fifth mounting hole (32) at one end of its peripheral wall away from the fourth mounting hole (31). The fifth mounting hole (32) is used to connect with the second mounting hole (21) of the adjacent connecting sleeve (2).

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