Cable well monitoring device

Abstract

The invention relates to the technical field of cable wells, and discloses a cable well monitoring device which comprises a supporting part arranged at the bottom of a well lid, and a first guide wheel and a second guide wheel are rotationally arranged at the upper end and the lower end of one side of the supporting part correspondingly; a balancing weight is arranged at one end of the measuring scale, the other end of the measuring scale sequentially bypasses the first guide wheel and the second guide wheel and then is connected with a floating ball, and the floating ball is movably connected with the supporting part; in the initial state, the balancing weight and the floating ball are both located on the lower portion of the supporting part. The rotating shaft of the first guide wheel or the second guide wheel is connected with a distance measuring sensor; the water level in the cable well can be monitored without uncovering, and the water level monitoring device is simple in structure, convenient to use and high in safety.

Description

Technical Field

[0001] The present invention relates to the technical field of cable wells, and in particular to a cable well monitoring device. Background Art

[0002] In order to ensure drainage and ventilation, through holes are usually set on the cable well cover. In rainy seasons, water will accumulate inside the cable well. In order to reduce the impact on the cable operation in the well, drainage is required when the accumulated water reaches a certain height to ensure the service life of the cable and the normal operation of the cable.

[0003] At present, the understanding of underground water accumulation is mostly to open the manhole cover for observation. Opening many manhole covers one by one is not only cumbersome, but also has certain safety hazards due to the accumulation of water in the well. Therefore, there is an urgent need for a cable well monitoring device that can realize the water level monitoring inside the cable well without opening the cover. Summary of the invention

[0004] The purpose of the present invention is to provide a cable well monitoring device, which can monitor the water level in the cable well without opening the cover, has a simple structure, is easy to use and has high safety.

[0005] The present invention adopts the following technical solutions: A cable well monitoring device comprises a support portion arranged at the bottom of a well cover, wherein a first guide wheel and a second guide wheel are rotatably arranged at the upper and lower ends of one side of the support portion respectively; a counterweight block is arranged at one end of a measuring ruler, and a floating ball is connected to the other end after passing around the first guide wheel and the second guide wheel in sequence, and the floating ball is movably connected to the support portion; in an initial state, the counterweight block and the floating ball are both located at the lower part of the support portion; a distance measuring sensor is connected to the rotating shaft of the first guide wheel or the second guide wheel.

[0006] Preferably, an observation port is provided through the manhole cover above the first guide wheel, and scale lines are provided on the measuring ruler.

[0007] Preferably, a transparent protective cover is provided on the observation port, and the top of the protective cover does not protrude from the observation port.

[0008] Preferably, the top of the protective cover is lower than the top of the observation port, and a detachable sealing plug is provided in the observation port above the protective cover.

[0009] Preferably, the support portion is a sleeve structure with a hollow interior, a support frame is provided inside the support portion, and the float is located on the support frame in an initial state.

[0010] Preferably, a limiting plate is provided on the counterweight block, a limiting groove is provided on the supporting portion along the vertical direction, and the limiting plate is slidably connected to the limiting groove.

[0011] Preferably, a ball is movably arranged on the limit plate.

[0012] Preferably, the limiting plate is provided with bristles for cleaning the measuring ruler.

[0013] Preferably, a measuring sleeve is coaxially movably arranged in the support part, a movable hole for the measuring sleeve to pass through is arranged on the manhole cover, a limiting block is arranged on the inner wall of the measuring sleeve, a limiting disk is arranged at the bottom of the float, and the diameter of the limiting disk is smaller than the inner diameter of the measuring sleeve; a limiting cavity is arranged on the side of the limiting disk, and an avoidance groove passing through the limiting cavity is arranged on the limiting disk; in an initial state, the measuring sleeve is arranged on the outside of the limiting disk, the limiting block is located in the avoidance groove, and a sealing disk is arranged on the top of the measuring sleeve, and the sealing disk is detachably arranged in the movable hole.

[0014] Preferably, the measuring sleeve is provided with scale lines, and an overflow hole is opened on the side wall of the measuring sleeve in the vertical direction; and a conical guide sleeve is provided in the measuring sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: by arranging a counterweight on the measuring ruler on one side of the first guide wheel and arranging a float at the other end of the measuring ruler bypassing the second guide wheel, the present invention can utilize the rising water level in the well to push the float to rise, and the float drives the measuring ruler to move to realize the synchronous rotation of the first guide wheel and the second guide wheel, and then utilizes the distance measuring sensor to measure the number of rotations of the first guide wheel and the second guide wheel to judge the distance of the water level rise, so that the staff can obtain relevant information remotely without opening the manhole cover for observation, which saves time and effort and ensures safety at the same time; in addition, the arrangement of the counterweight in the present invention helps to automatically reset the float and the measuring ruler after the water level drops, so as to facilitate the intuitive observation of the data on the measuring ruler after the manhole cover is opened later. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 A cross-sectional view of an embodiment of the present application; Figure 3 A partial cross-sectional view of a measuring sleeve according to an embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the limiting plate according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] The present invention will be described clearly and completely below with reference to the accompanying drawings and embodiments: like Figures 1 to 4 As shown, a cable well monitoring device according to the present invention comprises a support part 2 arranged at the bottom of a well cover 1, and the support part 2 and the well cover 1 are preferably detachably connected to facilitate replacement and adjustment thereof, wherein the support part 2 is coaxially arranged with the well cover 1, and the upper and lower ends of one side of the support part 2 are respectively rotatably arranged with a first guide wheel 3 and a second guide wheel 4, wherein the axes of the first guide wheel 3 and the second guide wheel 4 are not in the same straight line; a counterweight block 6 is arranged at one end of the measuring ruler 5, and a floating ball 7 is connected to the other end after passing through the top of the first guide wheel 3 and the bottom of the second guide wheel 4 in turn, and the floating ball 7 is movably connected to the support part 2; in the initial state, the counterweight block 6 and the floating ball 7 are both located at the lower part of the support part 2; a distance measuring sensor 8 is connected to the rotating shaft of the first guide wheel 3 or the second guide wheel 4, and the distance measuring sensor 8 can adopt a photoelectric coding sensor, and the number of rotations of the rotating shaft is used to judge the distance that the floating ball 7 drives the measuring ruler 5 to rise, so as to facilitate remote monitoring by the staff. The specific model of the photoelectric coding sensor can be adaptively matched according to the installation position of the entire monitoring device, the internal environment of the well and the size of the rotating shaft.

[0018] During operation, the rising water level pushes the float 7 up, and the buoyancy is greater than the weight of the counterweight 6. The float 7 will pull the measuring ruler 5 to move and drive the counterweight 6 to rise. At this time, the first guide wheel 3 and the second guide wheel 4 will rotate synchronously, and the photoelectric encoding sensor will process the data of the clockwise rotation of the detected shaft and send it to the background for remote monitoring by the staff; water level monitoring can be carried out without opening the manhole cover 1, which saves time and effort and has high safety; after use, as the water level drops, the measuring ruler 5 and the float 7 will be reset under the drive of the counterweight 6; the setting of the measuring ruler 5 is also convenient for opening the manhole cover 1 on site to intuitively read data, thereby enhancing the practicality of the present invention.

[0019] Furthermore, an observation port 9 is provided through the manhole cover 1 above the first guide wheel 3, and scale lines are provided on the measuring ruler 5; the setting of the observation port 9 facilitates the on-site staff to directly read the scale on the measuring ruler 5 through it. In addition, a transparent protective cover 10 is provided on the observation port 9, and the protective cover 10 can be made of transparent glass or transparent plastic material, and the top of the protective cover 10 does not protrude from the observation port 9 to reduce the wear and tear on the protective cover 10. Preferably, the top of the protective cover 10 is lower than the top of the observation port 9, and a sealing plug 11 is detachably provided in the observation port 9 above the protective cover 10. Under normal conditions, the sealing plug 11 is inserted into the observation port 9 to protect the protective cover 10.

[0020] Furthermore, the support part 2 is a sleeve structure with a hollow interior, and a support frame 12 is arranged inside the support part 2. The support frame 12 is a hollow structure for water flow to pass through. In the initial state, the float 7 is located on the support frame 12 to provide support for the float 7. In addition, a limit plate 13 is arranged on the counterweight 6, and a limit groove 14 is provided on the support part 2 in the vertical direction. The limit plate 13 is slidably connected with the limit groove 14, which can ensure the stability of the counterweight 6 moving up and down and avoid the counterweight 6 from swinging during the up and down movement. Preferably, a ball is movably arranged on the limit plate 13, and the ball is movably located in the limit groove 14, further reducing the friction between the limit plate 13 and the limit groove 14, so that the limit plate 13 can slide up and down smoothly along the limit groove 14. In addition, a brush 15 for cleaning the measuring ruler 5 is arranged on the limit plate 13, which can clean the dirt adhering to the surface of the measuring ruler 5 during the movement, ensure the cleanliness of the surface of the measuring ruler 5, so that the workers can read the data intuitively on site.

[0021] Further, a measuring sleeve 16 is coaxially movably arranged in the support part 2, and a scale is arranged on the measuring sleeve 16. The measuring sleeve 16 is a cylindrical structure with a hollow interior. A movable hole for the measuring sleeve 16 to pass through is arranged on the manhole cover 1. A limit block 17 is arranged on the inner wall of the measuring sleeve 16, and a limit plate 18 is arranged at the bottom of the float 7. The diameter of the limit plate 18 is smaller than the inner diameter of the measuring sleeve 16; a limit cavity 19 is arranged on the side of the limit plate 18, and an avoidance groove 20 penetrating the limit cavity 19 is arranged on the limit plate 18; in the initial state, the measuring sleeve 16 The sleeve is arranged on the outside of the limit plate 18, and the limit block 17 is located in the avoidance groove 20. Preferably, after the limit block 17 is located in the avoidance groove 20, its top is not higher than the top of the limit cavity 19, and its bottom is not lower than the bottom of the limit cavity 19, so that the measuring sleeve 16 can be rotated and the limit block 17 can smoothly enter the limit cavity 19. A sealing disk 21 is arranged on the top of the measuring sleeve 16, and the sealing disk 21 is detachably arranged in the movable hole. The inner wall of the movable hole is provided with a convex edge for receiving the sealing disk 21, and the sealing disk 21 is detachably fixed on the convex edge by bolts.

[0022] The setting of the measuring sleeve 16 can release the fixed connection of the sealing disk 21 when necessary, and rotate the measuring sleeve 16 to place the limit block 17 in the limit cavity 19. At this time, as the water level rises, the float 7 will push the measuring sleeve 16 to rise from the manhole cover 1, so that the water level rise can be observed more intuitively on site, avoiding the situation where rainwater drips on the ground and covers the protective cover 10, making it inconvenient to read the data on site; in addition, an overflow hole 22 is opened on the side wall of the measuring sleeve 16 in the vertical direction, which is convenient for using the overflow hole when there is heavy rain on the road surface 22 is used to increase the efficiency of water discharge into the well. Preferably, a filter screen 23 is provided on the overflow hole 22 to filter the dirt entrained in the rainwater to avoid clogging caused by the rainwater flowing into the well. A conical guide sleeve 24 is provided in the measuring sleeve 16, and a drainage hole for rainwater to drip is formed between the guide sleeve 24 and the inner wall of the measuring sleeve 16. The setting of the guide sleeve 24 can guide the rainwater entering the measuring sleeve 16 to the surrounding side to avoid the rainwater flowing into the measuring sleeve 16 directly dripping on the float 7, causing the float 7 to shake significantly.

[0023] When the present invention is in use, the floating ball 7 is driven to rise by the rising water level, so that the measuring ruler 5 can drive the counterweight block 6 to move upward, and the first guide wheel 3 and the second guide wheel 4 will also rotate synchronously. At this time, the data on the measuring ruler 5 can be read on the spot through the observation port 9, and the remote water level data can be read according to the number of rotations of the rotating shaft received by the photoelectric encoding sensor; there is no need to open the manhole cover 1, which saves time and effort and has strong safety; when on the spot, if it is inconvenient to read from the observation port 9 due to heavy rain, the sealing disk 21 can be released, and when the limit block 17 is located in the avoidance groove 20, the measuring sleeve 16 can be directly rotated to make the limit block 17 located in the limit cavity 19, and as the water level rises, the measuring sleeve 16 will be synchronously raised from the lower part of the manhole cover 1 above the ground, which is convenient for more intuitive data reading; in addition, when the through hole on the manhole cover 1 is too large to drain water in time, the overflow hole 22 on the measuring sleeve 16 can be used to assist in the discharge of rainwater, thereby enhancing the practicality of the present invention.

Claims

1. A cable well monitoring device, characterized in that: It includes a support part arranged at the bottom of the manhole cover, and a first guide wheel and a second guide wheel are rotatably arranged at the upper and lower ends of one side of the support part respectively; a counterweight block is arranged at one end of the measuring ruler, and the other end is connected to a floating ball after passing around the first guide wheel and the second guide wheel in sequence, and the floating ball is movably connected to the support part; in an initial state, the counterweight block and the floating ball are both located at the lower part of the support part; a distance measuring sensor is connected to the rotating shaft of the first guide wheel or the second guide wheel.

2. The cable well monitoring device according to claim 1, characterized in that: An observation port is provided through the manhole cover above the first guide wheel, and scale lines are provided on the measuring ruler.

3. The cable well monitoring device according to claim 2, characterized in that: A transparent protective cover is arranged on the observation port, and the top of the protective cover does not protrude from the observation port.

4. The cable well monitoring device according to claim 3, characterized in that: The top of the protective cover is lower than the top of the observation port, and a sealing plug is detachably provided in the observation port above the protective cover.

5. The cable well monitoring device according to claim 1, characterized in that: The support part is a sleeve structure with a hollow interior, a support frame is arranged inside the support part, and the float is located on the support frame in an initial state.

6. The cable well monitoring device according to claim 5, characterized in that: A limiting plate is arranged on the counterweight block, a limiting groove is arranged on the supporting part along the vertical direction, and the limiting plate is slidably connected with the limiting groove.

7. The cable well monitoring device according to claim 6, characterized in that: A ball is movably arranged on the limit plate.

8. The cable well monitoring device according to claim 6, characterized in that: The limiting plate is provided with bristles for cleaning the measuring ruler.

9. The cable well monitoring device according to claim 5, characterized in that: A measuring sleeve is coaxially movably arranged in the support part, a movable hole for the measuring sleeve to pass through is arranged on the manhole cover, a limiting block is arranged on the inner wall of the measuring sleeve, a limiting disk is arranged at the bottom of the float, and the diameter of the limiting disk is smaller than the inner diameter of the measuring sleeve; a limiting cavity is arranged on the side of the limiting disk, and an avoidance groove passing through the limiting cavity is arranged on the limiting disk; in an initial state, the measuring sleeve is arranged on the outside of the limiting disk, the limiting block is located in the avoidance groove, and a sealing disk is arranged on the top of the measuring sleeve, and the sealing disk is detachably arranged in the movable hole.

10. The cable well monitoring device according to claim 9, characterized in that: The measuring sleeve is provided with scale lines, and an overflow hole is opened on the side wall of the measuring sleeve in the vertical direction; a conical guide sleeve is arranged inside the measuring sleeve.

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