CN119178492A - Water level detection device for small and medium-sized reservoirs - Google Patents

Abstract

The invention provides a water level detection device for a medium and small reservoir, which comprises a water measuring well, a measurer, a water level measuring disc, a counterweight structure, a movable pulley, a floater, a cable and a cable, wherein the water measuring well is internally provided with a containing cavity, the water measuring well is provided with a through hole, the through hole is communicated with the containing cavity, the measurer is positioned at one side of the water measuring well, the water level measuring disc is rotationally connected with the measurer, the counterweight structure is positioned in the containing cavity, the counterweight structure is internally provided with a sealing cavity, the movable pulley is positioned in the sealing cavity and rotationally connected with the counterweight structure, the floater is arranged in the containing cavity and is a telescopic piece, the cable is wound on the outer side of the water level measuring disc and the movable pulley, when the buoyancy borne by the floater is increased, the floater contracts to shorten the distance between the first end of the cable and the second end of the cable, and when the buoyancy borne by the floater is reduced, the floater is unfolded to enlarge the distance between the first end of the cable and the second end of the cable. The invention can avoid the influence of short-time lifting of the water surface on the measurer caused by waves in the reservoir and improve the detection precision of the detection device.

Description

Water level detection device for small and medium-sized reservoirs

Technical Field

The invention relates to the technical field of testing devices, in particular to a water level detection device for a medium and small reservoir.

Background

The water level of the medium-sized and small-sized reservoir changes fast, when the water level detection device detects the water level, the water inlet and the water outlet of the water measuring well are frequent, so that the sectional area of the water inlet can be increased to avoid the blockage of the water inlet of the water measuring well, but the increase of the water inlet can lead to the wave of the reservoir to be transmitted into the water measuring well, the floater of the water level detection device is influenced, the detection result is deviated, and the detection error of the water level detection device is large.

Disclosure of Invention

Accordingly, it is necessary to provide a water level detection device for small and medium reservoirs in order to solve the problem of large detection error of the conventional water level detection device.

The above purpose is achieved by the following technical scheme:

the water level detecting device for small and medium reservoir includes one water measuring well with holding cavity, one water measuring well with water through port communicated to the holding cavity; the water level measuring device comprises a measuring device, a water level measuring disc, a balance weight structure, a movable pulley, a floater, a cable, a second part of the cable, a sealing cavity, a first opening and a second opening, wherein the water level measuring disc is rotatably connected with the measuring device, the balance weight structure is arranged in the accommodating cavity, the sealing cavity is provided with the sealing cavity, the sealing cavity is communicated with the first opening and the second opening, the movable pulley is arranged in the sealing cavity and rotatably connected with the balance weight structure, the floater is arranged in the accommodating cavity and is arranged between the measuring device and the balance weight structure, the floater is a telescopic piece, the cable is provided with a first end part and a second end part, the floater is connected between the first end part and the second end part, the first part of the cable extends out of the water level measuring device and is sleeved outside the water level measuring disc, the second part of the cable extends into the sealing cavity through the first opening, bypasses the movable pulley and extends out of the balance weight structure through the second opening, when the buoyancy to which is subjected to the floater is increased, the distance between the first end part of the cable and the second end part of the cable is shortened, and the distance between the first end part of the cable is reduced when the buoyancy to which is subjected to the floater is reduced.

In one embodiment, the float has oppositely disposed first and second end faces, the first end of the cable being connected to the first end face of the float and the second end of the cable being connected to the second end face of the float.

In one embodiment, the float comprises a first cover plate, a second cover plate and a corrugated pipe, wherein the first cover plate is provided with a first end face, the second cover plate is provided with a second end face, the corrugated pipe is connected between the first cover plate and the second cover plate, the first cover plate, the corrugated pipe and the second cover plate enclose a working cavity, and the elastic piece is positioned in the working cavity and connected between the first cover plate and the second cover plate.

In one embodiment, the resilient member is spaced from the inner surface of the bellows.

In one embodiment, the medium and small reservoir water level detection device further comprises a one-way air inlet valve which is arranged on the floater and communicated with the working cavity, an air pipe which is connected between the floater and the counterweight structure and communicated with the working cavity and the sealing cavity, and a one-way air outlet valve which is arranged on the counterweight structure and communicated with the sealing cavity.

In one embodiment, the one-way air inlet valve is provided on the side of the float facing away from the counterweight structure, the one-way air outlet valve is arranged on the counterweight the side of the structure facing away from the float.

In one embodiment, the counterweight structure comprises a shell, a counterweight part and a counterweight part, wherein the shell is provided with a first opening and a second opening, a sealing cavity is enclosed on the inner surface of the shell, the movable pulley is rotationally connected with the shell, and the counterweight part is positioned on the outer side of the shell and is connected with the shell.

In one embodiment, the counterweight structure further comprises two hanging rods, the two hanging rods are arranged at intervals, the counterweight part is connected with the shell through the two hanging rods, the one-way air outlet valve is located between the two hanging rods, and the counterweight part comprises a plurality of counterweight blocks which are detachably connected.

In one embodiment, one end of the water measuring well is provided with a third opening, the first part of the cable extends out of the water measuring well through the third opening, the water level detection device for the medium and small reservoirs further comprises a support plate, the support plate is arranged at one end of the water measuring well with the third opening, the support plate covers one part of the third opening, the measurer is arranged at one side of the support plate, which is away from the water measuring well, and the part, matched with the cable, of the water level measuring disc protrudes out of the peripheral wall of the support plate.

In one embodiment, the water level detection device for the medium and small reservoirs further comprises a fixing block, wherein the fixing block is connected to one side of the water measuring well, which is away from the measurer, and is used for installing and positioning the water measuring well.

In other embodiments, the through-flow orifice is disposed opposite the weighted structure.

The water level detection device for the medium and small reservoirs comprises a water logging well, a measurer, a water level measuring disc, a counterweight structure, a movable pulley, a floater and a cable.

The cable has a first end and a second end, the first end of the cable and the second end of the cable being disconnected. The float is connected between the first end of the cable and the second end of the cable, i.e. the float and the cable are connected to enclose a loop-like structure.

The water measuring well is internally provided with a containing cavity, the water measuring well is provided with a through-flow port, the through-flow port is communicated with the containing cavity, water in the reservoir can flow into the containing cavity through the through-flow port, and water in the containing cavity can also flow into the reservoir through the through-flow port.

The measuring device is located on one side of the measuring well, i.e. the measuring device is located outside the measuring well. The water level measuring disc is rotatably connected to the measurer, i.e. the water level measuring disc is rotatable relative to the measurer. When the water level of the reservoir changes, the water level in the accommodating cavity of the water measuring well also changes, the floater moves along with the liquid level in the accommodating cavity, the floater moves to drive the water level measuring disc to rotate, and the measurer can record water level information according to the rotation data of the water level measuring disc so as to achieve the purpose of determining the water level.

The counterweight structure, the movable pulley and the floater are all positioned in the accommodating cavity of the water measuring well. The counterweight structure is internally provided with a sealing cavity, the movable pulley is positioned in the sealing cavity and is rotationally connected with the counterweight structure, namely, the movable pulley can rotate relative to the counterweight structure.

The first part of the cable stretches out of the water measuring well and is sleeved on the outer side of the water level measuring disc, the second part of the cable stretches into the sealing cavity through the first opening, bypasses the movable pulley and stretches out of the counterweight structure through the second opening. The float is located between the measurer and the counterweight structure. It will be appreciated that the cable includes a first portion, a second portion, a third portion and a fourth portion, each connected between the first portion and the second portion, and the third portion and the fourth portion being spaced apart. One of the third and fourth portions has a first end and a second end, that is, the float is connected to the third portion of the cable or the float is connected to the fourth portion of the cable.

Specifically, when a wave occurs in the reservoir, the water level of the receiving chamber in the test well suddenly changes. Taking the example that the water level rises and the floater is connected with the third part of the cable, when the water level rises, the volume of the floater contacted with water is increased, the buoyancy force born by the floater is increased, and the floater contracts to shorten the distance between the first end part of the cable and the second end part of the cable so as to drive the counterweight structure and the movable pulley to move towards the direction of the measurer. The floater is positioned between the measurer and the counterweight structure, and the floater is connected with the third part of the cable, so that the fourth part of the cable is hardly moved, the water level measuring disc is prevented from rotating, the measurer cannot record fluctuation of waves, the floater has a good damping effect, the influence of short-time lifting of the water surface brought by the waves in the reservoir on the measurer can be shielded, the detection error of the water level detecting device of the medium and small-sized reservoir is reduced, and the detection precision and accuracy of the water level detecting device of the medium and small-sized reservoir are improved.

It will be appreciated that when the water level of the reservoir is actually rising, the water level in the receiving chamber of the logging well will rise, the float will move with the liquid level in the receiving chamber, and the fourth part of the cable will gradually move under the influence of the gravity of the counterweight structure, so that the water level measuring disc will rotate with it, and the measurer will record this water level information with it.

Specifically, when a wave occurs in the reservoir, the water level of the receiving chamber in the test well suddenly changes. Taking the example that the water level descends and the floater is connected with the third part of the cable, when the water level descends, the volume of the floater contacted with water is reduced, the buoyancy born by the floater is reduced, the floater is unfolded to increase the distance between the first end part of the cable and the second end part of the cable, and the counterweight structure and the movable pulley are driven to move in the direction deviating from the measurer. The floater is positioned between the measurer and the counterweight structure, and the floater is connected with the third part of the cable, so that the fourth part of the cable is hardly moved, the water level measuring disc is prevented from rotating, the measurer cannot record fluctuation of waves, the floater has a good damping effect, the influence of short-time lifting of the water surface brought by the waves in the reservoir on the measurer can be shielded, the detection error of the water level detecting device of the medium and small-sized reservoir is reduced, and the detection precision and accuracy of the water level detecting device of the medium and small-sized reservoir are improved.

It will be appreciated that when the water level of the reservoir is actually falling, the water level in the receiving cavity of the measuring well will also fall, the float will move with the liquid level in the receiving cavity, and the fourth part of the cable will gradually move under the influence of the gravity of the counterweight structure, so that the water level measuring disc will rotate with it, and the measurer will record this water level information with it.

In addition, because the movable pulley is arranged in the counterweight structure and is rotationally connected with the counterweight structure, the part of the cable between the measurer and the counterweight structure is vertical to the liquid level in the accommodating cavity, the occurrence probability of cable stirring caused by water flow movement can be reduced, the effective contact area and friction force between the cable and the water level measuring disc and between the cable and the movable pulley can be ensured, and structural support is provided for further improving the detection precision of the water level detection device of the medium and small reservoirs.

That is, the structure of the water level detection device for the medium and small reservoirs is reasonably arranged, the feasibility and the effectiveness of water level detection are ensured, the influence of short-time lifting of the water surface on the measurer caused by waves in the reservoirs can be avoided, and the detection precision of the water level detection device for the medium and small reservoirs is improved.

It can be understood that the movable pulley is located the sealed intracavity of counter weight structure, namely, the counter weight structure can include the movable pulley, can play the effect of isolated movable pulley and outside water, can avoid the movable pulley to receive the influence of aquatic impurity and blocked, can guarantee that the movable pulley is smooth and effectively rotates.

Drawings

FIG. 1 is a schematic view of a first view angle of a water level detection device for a medium and small reservoir according to an embodiment of the present invention;

FIG. 2 is an enlarged view of part A of the water level detection device of the medium and small reservoirs shown in FIG. 1;

FIG. 3 is a schematic diagram of a second view angle of a water level detection device for small and medium reservoirs according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a third view angle of a water level detection device for small and medium reservoirs according to an embodiment of the present invention;

FIG. 5 is an enlarged view of part B of the water level detection device of the medium and small reservoir shown in FIG. 4;

FIG. 6 is a cross-sectional view of a water level detection device for a medium and small reservoir according to an embodiment of the present invention;

FIG. 7 is an enlarged view of part C of the water level detection device of the medium and small reservoir shown in FIG. 6;

fig. 8 is a partial enlarged view of the position D of the water level detecting device for the middle and small reservoir shown in fig. 6.

The water level detection device for the small and medium-sized reservoirs comprises a water level detection device for the small and medium-sized reservoirs 10, a water level detection well 100, a holding cavity 110, a 120 flow passage, a 130 third opening, a 200 measurer, a 300 water level measurement disc, a 400 counterweight structure, a 410 sealing cavity, a 420 first opening, a 430 second opening, a 440 shell, a 450 counterweight part, 452 counterweight blocks, 460 suspenders, 500 movable pulleys, 600 floats, 610 first end surfaces, 620 second end surfaces, 630 first cover plates, 640 second cover plates, 650 corrugated pipes, 660 working cavities, 670 elastic elements, 700 cables, 710 first end parts, 720 second end parts, 730 first parts, 740 second parts, 750 third parts, 760 fourth parts, 800 one-way air inlet valves, 900 air pipes, 1000 one-way air outlet valves, 1100 supporting plates, 1102 supporting plate peripheral walls and 1200 fixing blocks.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

A small and medium reservoir level detection apparatus 10 according to some embodiments of the present invention will be described with reference to fig. 1 to 8.

As shown in fig. 1,2,3,4, 5,6,7 and 8, a small and medium reservoir water level detection device 10 according to some embodiments of the present invention includes a water measuring well 100 having a receiving chamber 110 therein, a water measuring well 100 having a flow port 120 therein, the flow port 120 being in communication with the receiving chamber 110, a measurer 200 located at one side of the water measuring well 100, a water level measuring pan 300 rotatably connected to the water level measuring pan 300, a balance weight structure 400 located in the receiving chamber 110, a sealing chamber 410 provided in the balance weight structure 400, a first opening 420 and a second opening 430 provided in the balance weight structure 400, the sealing chamber 410 being in communication with the first opening 420 and the second opening 430, a movable sheave 500 located in the sealing chamber 410, the movable sheave 500 being in rotatable communication with the balance weight structure 400, a float 600 provided in the receiving chamber 110, the float 600 being located between the measurer 200 and the balance weight structure 400, the float 600 being a telescoping member, the cable 700 having a first end 710 and a second end 720, the float 600 being connected to the water level measuring pan 300, the float 600 being in communication with the first end 710 and the second end 720, the float 700 being stretched out of the cable 700 and the second end 700 being stretched out of the first end 700 and the second end 700 by the cable 700 when the first end 700 and the second end 700 is stretched out of the cable 700 and the second end 700 is stretched out of the end 720, and the end 700 is stretched out of the end 700, and the end 700 is stretched by the cable 700, and the end 700, when the end 700 is stretched out of the end is stretched by the cable and the cable is stretched by the cable wire and the cable is stretched by the cable and the cable is the cable 700, the cable is stretched by the cable 700 and the cable 700.

In this embodiment, the medium and small reservoir water level detection apparatus 10 includes a test well 100, a measurer 200, a water level measuring disc 300, a weight structure 400, a movable pulley 500, a float 600, and a cable 700.

The cable 700 has a first end 710 and a second end 720, the first end 710 of the cable 700 and the second end 720 of the cable 700 being disconnected. The float 600 is connected between the first end 710 of the cable 700 and the second end 720 of the cable 700, i.e. the float 600 and the cable 700 are connected to enclose a loop-like structure.

The water measuring well 100 is internally provided with a containing cavity 110, the water measuring well 100 is provided with a through-flow port 120, the through-flow port 120 is communicated with the containing cavity 110, water in the reservoir can flow into the containing cavity 110 through the through-flow port 120, and water in the containing cavity 110 can also flow into the reservoir through the through-flow port 120.

The measurer 200 is located at one side of the well 100, that is, the measurer 200 is located at the outside of the well 100. The water level measuring tray 300 is rotatably connected to the measurer 200, i.e., the water level measuring tray 300 can rotate with respect to the measurer 200. When the water level of the reservoir changes, the water level in the accommodating cavity 110 of the water measuring well 100 also changes, the floater 600 moves along with the liquid level in the accommodating cavity 110, the floater 600 can drive the water level measuring disc 300 to rotate, and the measurer 200 can record water level information according to the rotation data of the water level measuring disc 300, so that the purpose of determining the water level is achieved.

The balance weight structure 400, the movable sheave 500 and the float 600 are all located in the receiving chamber 110 of the test well 100. The counterweight structure 400 is provided with a sealing chamber 410, and the movable pulley 500 is located in the sealing chamber 410, and the movable pulley 500 is rotatably connected with the counterweight structure 400, that is, the movable pulley 500 can rotate relative to the counterweight structure 400.

The first portion 730 of the cable 700 extends out of the test well 100 and is sleeved outside the water level measuring tray 300, and the second portion 740 of the cable 700 extends into the sealing cavity 410 through the first opening 420, bypasses the movable sheave 500 and extends out of the counterweight structure 400 through the second opening 430. Float 600 is located between meter 200 and counterweight structure 400. It is understood that the cable 700 includes a first portion 730, a second portion 740, a third portion 750, and a fourth portion 760, the third portion 750 and the fourth portion 760 are each connected between the first portion 730 and the second portion 740, and the third portion 750 and the fourth portion 760 are spaced apart. One of the third and fourth portions 750, 760 has a first end 710 and a second end 720, that is, the float 600 is connected to the third portion 750 of the cable 700 or the float 600 is connected to the fourth portion 760 of the cable 700.

Specifically, when a wave occurs in the reservoir, the water level of the receiving chamber 110 in the test well 100 suddenly changes. Taking an example that the water level rises and the float 600 is connected to the third portion 750 of the cable 700, when the water level rises, the volume of the float 600 contacting the water increases, the buoyancy to which the float 600 is subjected increases, and the float 600 contracts to shorten the distance between the first end 710 of the cable 700 and the second end 720 of the cable 700, so as to drive the weight structure 400 and the movable sheave 500 to move in the direction of the measurer 200. The float 600 is located between the measurer 200 and the counterweight structure 400, and the float 600 is connected with the third portion 750 of the cable 700, so that the fourth portion 760 of the cable 700 is hardly moved, and therefore, the water level measuring disc 300 does not rotate, the measurer 200 cannot record the fluctuation of the wave, and the water level measuring device has a good damping effect, can shield the influence of short-time lifting of the water surface caused by the wave in the reservoir on the measurer 200, is beneficial to reducing the detection error of the water level detecting device 10 of the medium and small reservoirs, and is beneficial to improving the detection precision and accuracy of the water level detecting device 10 of the medium and small reservoirs.

It will be appreciated that when the water level of the reservoir is actually rising, the water level in the receiving chamber 110 of the well 100 will rise, the float 600 will move with the liquid level in the receiving chamber 110, and the fourth portion 760 of the cable 700 will gradually move under the influence of the gravity of the counterweight 400, so that the water level measuring disc 300 will rotate accordingly, and the measurer 200 will record this water level information accordingly.

Specifically, when a wave occurs in the reservoir, the water level of the receiving chamber 110 in the test well 100 suddenly changes. Taking the example that the water level is lowered and the float 600 is connected to the third portion 750 of the cable 700, when the water level is lowered, the volume of the float 600 contacting the water is reduced, the buoyancy to which the float 600 is subjected is reduced, and the float 600 is unfolded to increase the distance between the first end 710 of the cable 700 and the second end 720 of the cable 700, so as to drive the weight structure 400 and the movable sheave 500 to move in a direction away from the measurer 200. The float 600 is located between the measurer 200 and the counterweight structure 400, and the float 600 is connected with the third portion 750 of the cable 700, so that the fourth portion 760 of the cable 700 is hardly moved, and therefore, the water level measuring disc 300 does not rotate, the measurer 200 cannot record the fluctuation of the wave, and the water level measuring device has a good damping effect, can shield the influence of short-time lifting of the water surface caused by the wave in the reservoir on the measurer 200, is beneficial to reducing the detection error of the water level detecting device 10 of the medium and small reservoirs, and is beneficial to improving the detection precision and accuracy of the water level detecting device 10 of the medium and small reservoirs.

It will be appreciated that when the water level in the reservoir is actually lowered, the water level in the receiving cavity 110 of the measuring well 100 will also be lowered, the float 600 will move along with the liquid level in the receiving cavity 110, and the fourth portion 760 of the cable 700 will gradually move under the influence of the gravity of the counterweight 400, so that the water level measuring disc 300 will rotate accordingly, and the measuring device 200 will record this water level information accordingly.

Because the movable pulley 500 is arranged in the counterweight structure 400, and the movable pulley 500 is rotationally connected with the counterweight structure 400, the part of the cable 700 between the measurer 200 and the counterweight structure 400 is vertical to the liquid level in the accommodating cavity 110, the occurrence probability of stirring of the cable 700 caused by water flow movement can be reduced, the effective contact area and friction force between the cable 700 and the water level measuring disc 300 and between the movable pulley 500 can be ensured, and structural support is provided for further improving the detection precision of the small and medium reservoir water level detection device 10.

That is, the structure of the water level detection device 10 for the medium and small-sized reservoirs is reasonably arranged, the feasibility and the effectiveness of water level detection are ensured, the influence of short-time lifting of the water surface caused by waves in the reservoirs on the measurer 200 can be avoided, and the detection precision of the water level detection device 10 for the medium and small-sized reservoirs is improved.

In addition, the movable pulley 500 is located in the sealing cavity 410 of the counterweight structure 400, that is, the counterweight structure 400 can include the movable pulley 500, which can isolate the movable pulley 500 from external water, prevent the movable pulley 500 from being blocked due to the influence of impurities in water, and ensure smooth and effective rotation of the movable pulley 500.

In some embodiments, as shown in fig. 6 and 7, the float 600 has oppositely disposed first and second end faces 610, 620, a first end 710 of the cable 700 connects the first end face 610 of the float 600, and a second end 720 of the cable 700 connects the second end face 620 of the float 600.

In this embodiment, the mating structure of the float 600 and the cable 700 is further defined.

Specifically, the float 600 has a first end face 610 and a second end face 620, the first end face 610 and the second end face 620 being opposite and spaced apart. The first end 710 of the cable 700 connects to the first end face 610 of the float 600 and the second end 720 of the cable 700 connects to the second end face 620 of the float 600.

This arrangement increases the length of the portion of the float 600 between the first end 710 of the cable 700 and the second end 720 of the cable 700, so that when the float 600 is telescopically changed, the distance between the first end 710 of the cable 700 and the second end 720 of the cable 700 is changed by a larger stroke, and the device can be adapted to the condition of short-time lifting of the water surface due to larger and smaller waves in the reservoir, and can effectively shield the influence of short-time lifting of the water surface due to waves in the reservoir on the measurer 200.

In other embodiments, the second end 720 of the cable 700 connects to the side of the float 600.

In some embodiments, as shown in FIGS. 6 and 7, the float 600 includes a first cover plate 630, the first cover plate 630 having a first end face 610, a second cover plate 640, the second cover plate 640 having a second end face 620, a bellows 650, the bellows 650 being connected between the first cover plate 630 and the second cover plate 640, the first cover plate 630, the bellows 650, and the second cover plate 640 enclosing a working chamber 660, an elastic member 670 positioned within the working chamber 660, the elastic member 670 being connected between the first cover plate 630 and the second cover plate 640.

In this embodiment, the float 600 includes a bellows 650, a first cover plate 630, and a second cover plate 640. The bellows 650 is connected between the first cover plate 630 and the second cover plate 640. The first cover plate 630, the bellows 650, and the second cover plate 640 enclose a working chamber 660.

The first end 710 of the cable 700 is connected to the first cover 630. The second end 720 of the cable 700 is connected to the second cover 640.

As the buoyancy experienced by the float 600 increases, the bellows 650 contracts to reduce the volume of the working chamber 660, with the spring 670 being compressed, and the spacing between the first end 710 of the cable 700 and the second end 720 of the cable 700 also decreasing.

When the buoyancy force applied to the float 600 increases, the external force applied to the elastic member 670 gradually decreases or even completely disappears, the elastic member 670 is restored, and the elastic member 670 is restored to enable the bellows 650 to be driven to restore, so as to increase the volume of the working chamber 660, and at the same time, the distance between the first end 710 of the cable 700 and the second end 720 of the cable 700 increases.

Alternatively, the elastic member 670 includes a spring, a compression spring, a tension spring, a torsion spring, and the like, which are not illustrated herein.

In some embodiments, the resilient member 670 is spaced from the inner surface of the bellows 650.

In this embodiment, the mating structure of the resilient member 670 and the bellows 650 is further defined.

Specifically, the elastic member 670 is spaced apart from the inner surface of the bellows 650. That is, the elastic member 670 has a gap with the inner surface of the bellows 650, so that the elastic member 670 does not interfere with the bellows 650 when the float 600 expands and contracts, so that the bellows 650 can be effectively expanded or contracted.

In addition, this arrangement also provides a space for avoiding deformation of the elastic member 670, so that the deformation of the elastic member 670 is prevented, and an effective and reliable structural support is provided for the float 600 to switch between the expanded state and the contracted state.

In some embodiments, as shown in fig. 6,7 and 8, the medium and small reservoir water level detection device 10 further comprises a one-way air inlet valve 800 arranged on the float 600 and communicated with the working cavity 660, an air pipe 900 connected between the float 600 and the counterweight structure 400, the air pipe 900 communicated with the working cavity 660 and the air pipe 900 communicated with the sealing cavity 410, and a one-way air outlet valve 1000 arranged on the counterweight structure 400, wherein the one-way air outlet valve 1000 is communicated with the sealing cavity 410.

In this embodiment, the structure of the medium-small reservoir water level detection apparatus 10 is further defined.

Specifically, the medium-and small-sized reservoir water level detection device 10 further includes a one-way air inlet valve 800, an air pipe 900, and a one-way air outlet valve 1000.

The one-way intake valve 800 is provided to the float 600, and the one-way intake valve 800 communicates with the working chamber 660. That is, ambient gas may enter the working chamber 660 via the one-way intake valve 800, but gas within the working chamber 660 may not exit the float 600 via the one-way intake valve 800.

One-way gas outlet valve 1000 is provided in counterweight structure 400, and one-way gas outlet valve 1000 communicates with sealed chamber 410. That is, gas within sealed cavity 410 may exit counterweight structure 400 via one-way gas outlet valve 1000, and gas in the environment may not enter sealed cavity 410 via one-way gas outlet valve 1000.

Wherein, the air pipe 900 is connected between the float 600 and the balance weight structure 400, the air pipe 900 communicates with the working chamber 660, and the air pipe 900 communicates with the seal chamber 410.

As the air pressure within the working chamber 660 of the float 600 increases, the air within the working chamber 660 may flow to the seal chamber 410 of the weight structure 400 via the air tube 900. When the pressure in the sealed cavity 410 increases to a preset value, the one-way air outlet valve 1000 is opened against the pressure of water, a part of the air in the sealed cavity 410 can be discharged out of the counterweight structure 400 through the one-way air outlet valve 1000, and meanwhile, the accumulated water in the sealed cavity 410 can be discharged out of the counterweight structure 400 through the one-way air outlet valve 1000 under the driving of the air.

It can be appreciated that the movable pulley 500 is located in the sealing cavity 410 of the counterweight structure 400, that is, the counterweight structure 400 can cover the movable pulley 500, and the sealing cavity 410 is filled with gas, so that the movable pulley 500 can be prevented from being blocked due to the influence of impurities in water, and smooth and effective rotation of the movable pulley 500 can be ensured. Meanwhile, when the bellows 650 stretches and contracts under the driving of the water wave, the air entering the working cavity 660 from the one-way air inlet valve 800 of the bellows 650 is pushed into the sealing cavity 410, so that the situation that the sealing cavity 410 leaks air and gradually fails is avoided.

It can be appreciated that when the water level rises, the one-way air outlet valve 1000 of the counterweight structure 400 is more difficult to open, which is beneficial to improving the rigidity of the corrugated pipe 650, and can reflect the water level fluctuation information of the reservoir at high water level more timely.

In some embodiments, one-way gas inlet valve 800 is disposed on a side of float 600 facing away from ballast structure 400, and one-way gas outlet valve 1000 is disposed on a side of ballast structure 400 facing away from float 600.

In this embodiment, the arrangement positions of one-way intake valve 800 and one-way outlet valve 1000 are further defined.

Specifically, the unidirectional air intake valve 800 is disposed on the side of the float 600 facing away from the counterweight structure 400, so that the distance between the unidirectional air intake valve 800 and the liquid level in the accommodating cavity 110 can be increased, so that the unidirectional air intake valve 800 can separate from the water in the accommodating cavity 110, and water flow is prevented from entering the working cavity 660 through the unidirectional air intake valve 800.

Specifically, the one-way air outlet valve 1000 is disposed on the side of the counterweight structure 400 away from the float 600, which is more beneficial to the drainage of the accumulated water in the sealing cavity 410 from the counterweight structure 400 through the one-way air outlet valve 1000 under the driving of the gas.

When the pressure in the sealed cavity 410 increases to a preset value, part of the gas in the sealed cavity 410 is discharged, and the water seepage in the sealed cavity 410 is extruded at the same time when the gas is discharged. Meanwhile, the structural arrangement can avoid the occurrence of poor shock absorption effect caused by overlarge rigidity of the corrugated tube 650.

In some embodiments, as shown in fig. 6 and 8, the counterweight structure 400 includes a housing 440, a first opening 420 and a second opening 430 are provided on the housing 440, a sealing chamber 410 is enclosed by an inner surface of the housing 440, the movable sheave 500 is rotatably connected with the housing 440, and a counterweight 450 is located outside the housing 440 and the counterweight 450 is connected with the housing 440.

In this embodiment, the constituent structure of the counterweight structure 400 is further defined.

Specifically, the weight structure 400 includes a housing 440 and a weight 450.

The casing 440 is provided with a first opening 420 and a second opening 430, the inner surface of the casing 440 encloses a sealing cavity 410, the sealing cavity 410 is communicated with the first opening 420 and the second opening 430, the movable pulley 500 is positioned in the casing 440, the casing 440 has the function of protecting the movable pulley 500, and structural support is provided for effective rotation of the movable pulley 500. The movable pulley 500 is rotatably connected to the housing 440, i.e. the movable pulley 500 is rotatable relative to the housing 440.

The weight 450 is located outside the housing 440, and the weight 450 is connected with the housing 440. The weight 450 pulls the cable 700 downward under the force of gravity so that the portion of the cable 700 between the measurer 200 and the weight structure 400 is perpendicular to the liquid surface in the receiving cavity 110, which can reduce the occurrence probability of agitation of the cable 700 due to the movement of water flow.

Alternatively, one of the movable pulley 500 and the housing 440 is provided with a rotation shaft, and the other of the movable pulley 500 and the housing 440 is provided with a shaft sleeve, and the rotation shaft is rotatably connected with the shaft sleeve.

In some embodiments, as shown in fig. 6 and 8, the weight structure 400 further includes two suspension rods 460, the two suspension rods 460 being spaced apart, the weight 450 being connected to the housing 440 by the two suspension rods 460, the one-way gas outlet valve 1000 being located between the two suspension rods 460, the weight 450 including a plurality of removably connected weights 452.

In this embodiment, the constituent structure of the counterweight structure 400 is further defined.

Specifically, the counterweight structure 400 also includes two booms 460. Two booms 460 are spaced apart, each boom 460 being connected between the counterweight 450 and the housing 440, i.e. the counterweight 450 is connected with the housing 440 by two booms 460. The weight 450 is suspended from one side of the housing 440 by two suspension rods 460.

Further, a one-way air outlet valve 1000 is positioned between the two hanging rods 460, and the one-way air outlet valve 1000 is positioned at the bottom of the casing 440, so as to ensure that the seepage water and the gas in the sealing cavity 410 are effectively discharged under the action of pressure.

Further, the weight 450 includes a plurality of removably attached weights 452. That is, the number of the balancing weights 452 can be adjusted according to specific practical requirements, for example, the number of the balancing weights 452 is increased, for example, the number of the balancing weights 452 is decreased. The setting can satisfy the user demand under multiple operating mode.

In some embodiments, as shown in fig. 1,2, 3, 4 and 5, one end of the measuring well 100 is provided with a third opening 130, a first portion 730 of the cable 700 extends out of the measuring well 100 through the third opening 130, the small and medium reservoir water level detecting device 10 further comprises a support plate 1100, the support plate 1100 is arranged at one end of the measuring well 100 provided with the third opening 130, the support plate 1100 covers a part of the third opening 130, the measurer 200 is arranged at one side of the support plate 1100 away from the measuring well 100, and a portion of the water level measuring disc 300 matched with the cable 700 protrudes out of the peripheral wall 1102 of the support plate.

In this embodiment, the medium-and small-sized reservoir level detection apparatus 10 further includes a support plate 1100.

The test well 100 has a third opening 130 at one end, the support plate 1100 is disposed at one end of the test well 100 having the third opening 130, and the support plate 1100 covers a portion of the third opening 130. The first portion 730 of the cable 700 protrudes out of the test well 100 through a portion of the third opening 130 not covered by the support plate 1100.

The measuring device 200 is arranged on one side of the supporting plate 1100 away from the water measuring well 100, and the supporting plate 1100 has the function of supporting the measuring device 200 and the water level measuring disc 300, so that the measuring device 200 and the water level measuring disc 300 are separated from water in the water measuring well 100, and structural support is provided for ensuring the detection precision of the measuring device 200 and ensuring the effective rotation of the water level measuring disc 300.

Further, the portion of the water level measuring disc 300, which is matched with the cable 700, protrudes out of the outer peripheral wall 1102 of the supporting plate, the supporting plate 1100 cannot interfere with the cable 700, the portion of the cable 700, which is located between the measurer 200 and the counterweight structure 400, can be vertically arranged, and the cable 700 cannot scratch the supporting plate 1100 when moving, so that the service life of the cable 700 can be guaranteed, and the detection precision of the small and medium reservoir water level detection device 10 can be guaranteed.

In other embodiments, the support plate 1100 covers the third opening 130 of the test well 100, the support plate 1100 is provided with a relief opening, and the first portion 730 of the cable 700 extends out of the support plate 1100 through the relief opening and is sleeved outside the water level measuring tray 300.

In some embodiments, as shown in fig. 1,3, 4 and 6, the water level detection device 10 for small and medium reservoirs further comprises a fixing block 1200, wherein the fixing block 1200 is connected to one side of the water measuring well 100 away from the measurer 200, and the fixing block 1200 is used for installing and positioning the water measuring well 100.

In this embodiment, the structure of the medium-small reservoir water level detection apparatus 10 is further defined.

Specifically, the middle-small reservoir water level detection device 10 further includes a fixing block 1200, and the fixing block 1200 is connected to a side of the measuring well 100 facing away from the measurer 200. The fixing block 1200 is used for installing and positioning the water measuring well 100, that is, the water measuring well 100 is installed and fixed in the reservoir through the fixing block 1200.

In some embodiments, the flow-through port 120 is disposed opposite the weighting structure 400.

In this embodiment, the placement of the vent 120 and mating structure is further defined.

Specifically, the flow port 120 is disposed opposite to the counterweight structure 400, and the flow port 120 is located at a downstream position of the water measuring well 100, so that when the water level of the reservoir is low, water flow can also effectively flow into the accommodating cavity 110 of the water measuring well 100 through the flow port 120, so as to meet the use requirements of effectively detecting different water levels of the reservoir.

Optionally, the fixed block 1200 is secured in a reservoir. The test well 100 is fixedly connected with the fixing block 1200, and the test well 100 is vertically arranged. The support plate 1100 is on the test well 100. The measurer 200 is fixed to the support plate 1100. The water level measuring disc 300 is rotatably connected to the measurer 200. The cable 700 connects the water level measuring tray 300 and the movable pulley 500. The cable 700 is fixedly connected with the float 600. The elastic member 670 is fixed inside the bellows 650. The one-way intake valve 800 is fixedly connected to the first cover plate 630 of the float 600, and the one-way intake valve 800 is uppermost of the float 600. The air pipe 900 communicates the working chamber 660 of the float 600 with the sealing chamber 410 of the weight structure 400. The counterweight structure 400 has a one-way gas outlet valve 1000. The movable sheave 500 is rotatably coupled to the housing 440 of the counterweight structure 400. The one-way gas outlet valve 1000 is fixedly connected with the housing 440 of the weight structure 400, and the one-way gas outlet valve 1000 is positioned at the lowest part of the housing 440 of the weight structure 400. The weight 450 is fixedly coupled to the housing 440 of the weight structure 400. The overflow 120 is located below the measuring well 100, the overflow 120 is located below the lowest historical water level of the reservoir, and the cross-sectional area of the overflow 120 is larger, so that blocking is avoided.

When the operation starts, the floater 600 is positioned at the horizontal plane and moves along with the fluctuation of the horizontal plane, the floater 600 drives the water level measuring disc 300 to rotate, and the measurer 200 records the water level information.

When waves occur in the reservoir, the water level of the test well 100 suddenly changes, and as an example of the water level rising, the buoyancy force applied to the float 600 increases, and the elastic member 670 is compressed, so that the volume of the working chamber 660 of the float 600 becomes smaller, and the air pressure in the working chamber 660 increases. At this time, the length of the float 600 becomes short and the movable pulley 500 is pulled up, and as the length of the float 600 is shortened, the distance by which the movable pulley 500 moves up becomes small, the distance by which the water level measuring tray 300 is pulled down by the right-side cable 700 becomes small, and an error due to water level fluctuation is reduced.

The pressure of the air inside the float 600 increases, and the air in the working chamber 660 of the float 600 is sent to the sealing chamber 410 of the balance weight 400, and the pressure of the air in the sealing chamber 410 increases.

When the pressure inside the sealed chamber 410 increases to a certain extent, the one-way air outlet valve 1000 overcomes the pressure of water, the one-way air outlet valve 1000 is opened, part of the air in the sealed chamber 410 is discharged, and meanwhile, accumulated water in the sealed chamber 410 can be discharged.

When the water level rises, the one-way air outlet valve 1000 of the counterweight structure 400 is more difficult to open, the rigidity of the corrugated pipe 650 is increased, the damping effect on water is reduced, and the information of water level fluctuation at the high water level of the reservoir can be reflected more timely.

The float 600 of the present invention is a telescopic member, and the float 600 includes a bellows 650, and a compression spring (i.e., an elastic member 670) is added inside the bellows 650. When the liquid level rises, the volume of the bellows 650 contacted with water increases, the buoyancy increases, the counterweight structure 400 and the movable pulley 500 are driven to rise, the right steel wire rope (i.e. the cable 700) hardly moves, the water level measuring disc 300 above the water level measuring disc does not rotate, the measurer 200 cannot record the stirring of the waves, the water level measuring disc has a good damping effect, the influence of short-time lifting of the water level brought by the waves in the reservoir on the measurer 200 can be shielded, and the detection accuracy of the middle-size and small-size reservoir water level detection device 10 is increased.

By arranging the counterweight structure 400, the movable pulley 500 is wrapped by the shell 440 of the counterweight structure 400, and the sealing cavity 410 of the shell 440 is filled with gas, so that the movable pulley 500 is prevented from being blocked due to the influence of impurities in water, and the middle-small reservoir water level detection device 10 can work smoothly. Meanwhile, the bellows 650 is driven by the water wave to stretch and contract, so that the gas entering from the one-way air inlet valve 800 above the bellows 650 is pressed into the sealing cavity 410, and gradual failure caused by air leakage of the sealing cavity 410 is avoided.

The bottom of the casing 440 of the counterweight structure 400 is provided with a one-way air outlet valve 1000, so that the sealing cavity 410 is sealed under the action of water pressure at ordinary times, when the bellows 650 inflates the sealing cavity 410 to a certain air pressure, the air in the sealing cavity 410 is discharged through the one-way air outlet valve 1000, and the water seepage in the sealing cavity 410 is extruded while the air is discharged.

When the water level rises, the one-way air outlet valve 1000 on the shell 440 is harder to open, so that the corrugated pipe 650 has higher rigidity, the damping effect on water is reduced, and the information of water level fluctuation at the high water level of the reservoir can be reflected more timely.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (10)

1. A small and medium reservoir level detection device (10), characterized by comprising:

The water measuring well (100), wherein a containing cavity (110) is arranged in the water measuring well (100), a through-flow port (120) is arranged on the water measuring well (100), and the through-flow port (120) is communicated with the containing cavity (110);

A measurer (200) located at one side of the measuring well (100);

A water level measuring disc (300), wherein the water level measuring disc (300) is rotationally connected with the measurer (200);

The counterweight structure (400) is positioned in the accommodating cavity (110), a sealing cavity (410) is arranged in the counterweight structure (400), a first opening (420) and a second opening (430) are formed in the counterweight structure (400), and the sealing cavity (410) is communicated with the first opening (420) and the second opening (430);

the movable pulley (500) is positioned in the sealing cavity (410), and the movable pulley (500) is rotationally connected with the counterweight structure (400);

A float (600) disposed in the accommodating cavity (110), the float (600) being located between the measurer (200) and the counterweight structure (400), the float (600) being a telescopic member;

-a cable (700), the cable (700) having a first end (710) and a second end (720), the float (600) being connected between the first end (710) and the second end (720);

A first part (730) of the cable (700) extends out of the water measuring well (100) and is sleeved outside the water level measuring disc (300), a second part (740) of the cable (700) extends into the sealing cavity (410) through the first opening (420), bypasses the movable pulley (500) and extends out of the counterweight structure (400) through the second opening (430);

When the buoyancy experienced by the float (600) increases, the float (600) contracts to shorten the distance between the first end (710) of the cable (700) and the second end (720) of the cable (700);

When the buoyancy experienced by the float (600) decreases, the float (600) expands to increase the separation of the first end (710) of the cable (700) and the second end (720) of the cable (700).

2. The small and medium reservoir level detection apparatus (10) as claimed in claim 1, wherein the float (600) has a first end face (610) and a second end face (620) disposed opposite to each other, the first end (710) of the cable (700) being connected to the first end face (610) of the float (600), the second end (720) of the cable (700) being connected to the second end face (620) of the float (600).

3. The small and medium reservoir water level detection apparatus (10) as set forth in claim 2, wherein the float (600) includes:

-a first cover plate (630), the first cover plate (630) having the first end face (610);

-a second cover plate (640), the second cover plate (640) having the second end face (620);

A bellows (650), the bellows (650) being connected between the first cover plate (630) and the second cover plate (640), the first cover plate (630), the bellows (650) and the second cover plate (640) enclosing a working chamber (660);

And the elastic piece (670) is positioned in the working cavity (660), and the elastic piece (670) is connected between the first cover plate (630) and the second cover plate (640).

4. A small and medium reservoir level detection apparatus (10) as claimed in claim 3, wherein said elastic member (670) is arranged at a distance from an inner surface of said bellows (650).

5. A medium and small reservoir water level detection apparatus (10) according to claim 3, further comprising:

A one-way air inlet valve (800) arranged on the floater (600), wherein the one-way air inlet valve (800) is communicated with the working cavity (660);

-an air pipe (900), the air pipe (900) being connected between the float (600) and the counterweight structure (400), the air pipe (900) being in communication with the working chamber (660), and the air pipe (900) being in communication with the sealing chamber (410);

The one-way air outlet valve (1000) is arranged on the counterweight structure (400), and the one-way air outlet valve (1000) is communicated with the sealing cavity (410).

6. The small and medium reservoir water level detection apparatus (10) as set forth in claim 5, wherein said one-way intake valve (800) is disposed on a side of said float (600) facing away from said weight structure (400), and said one-way outlet valve (1000) is disposed on a side of said weight structure (400) facing away from said float (600).

7. The small and medium reservoir water level detection apparatus (10) as set forth in claim 5, wherein said weight structure (400) includes:

The shell (440), the shell (440) is provided with the first opening (420) and the second opening (430), the inner surface of the shell (440) encloses the sealing cavity (410), and the movable pulley (500) is rotationally connected with the shell (440);

and a weight (450) located outside the housing (440), wherein the weight (450) is connected to the housing (440).

8. The small and medium reservoir water level detection apparatus (10) as set forth in claim 7, wherein said weight structure (400) further includes:

Two hanging rods (460), wherein the two hanging rods (460) are arranged at intervals, the counterweight part (450) is connected with the shell (440) through the two hanging rods (460), and the one-way air outlet valve (1000) is positioned between the two hanging rods (460);

The weight portion (450) includes a plurality of removably connected weights (452).

9. The small and medium reservoir level detection apparatus (10) according to any one of claims 1 to 8, wherein one end of the test well (100) has a third opening (130), through which third opening (130) the first portion (730) of the cable (700) protrudes out of the test well (100);

The small and medium reservoir water level detection device (10) further comprises a support plate (1100), the support plate (1100) is arranged at one end of the water measuring well (100) with the third opening (130), the support plate (1100) covers a part of the third opening (130), the measurer (200) is arranged at one side, deviating from the water measuring well (100), of the support plate (1100), and the water level measurement disc (300) and the part matched with the cable (700) protrude out of the peripheral wall (1102) of the support plate.

10. A small and medium reservoir level detection apparatus (10) according to any one of claims 1 to 3, further comprising:

the fixed block (1200), the fixed block (1200) is connected to one side of the water measuring well (100) away from the measurer (200), and the fixed block (1200) is used for installing and positioning the water measuring well (100);

the flow port (120) is disposed opposite the weight structure (400).