Water conservancy dam on-line monitoring device

Abstract

The utility model discloses a water conservancy dam on-line monitoring device which comprises a fixing frame vertically and fixedly installed on the inner side of a dam and a sliding groove vertically fixed to one side of the fixing frame, a trapezoid sliding block is connected into the sliding groove in a sliding mode, a heavy hammer is fixed to the trapezoid sliding block through a crosspiece, and a water pressure sensor is installed in a groove formed in the heavy hammer. A fixing table is horizontally arranged above the fixing frame, a winch and a fixed pulley installed through a supporting frame are fixed to the fixing table, and a steel wire rope of the winch winds around the fixed pulley from the upper portion and is fixedly connected with the top of the heavy hammer. A heightening frame which is located in the supporting frame and located below the fixed pulley is further fixed to the fixing table. According to the utility model, the water pressure sensor is mounted on the heavy hammer, and the trapezoidal sliding block descends and ascends in the sliding groove to effectively scrape obstacles in the sliding groove in the unwinding and winding process of the steel wire rope of the winch, so that the water pressure sensor on the heavy hammer can smoothly descend and ascend in dam water to change the height position, and smooth use is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to dam monitoring technical field, concretely is a water conservancy dam on -line monitoring device. BACKGROUND

[0002] Dam monitoring is the prerequisite of water conservancy dam safety water storage, carries out safe operation, safe power generation, needs to monitor the state of dam at all times, including dam water demand, water seepage, displacement and so on, only on -line monitoring all the time, grasps the change of dam a hair, can ensure the safe use of dam to the maximum extent.

[0003] When needing dam water quantity monitoring, including through the monitoring of water storage water pressure, not only reflects the depth of dam, silt deposition, but also reflects the water demand of dam, indirectly reflects the counterbalancing capacity of dam. In the prior art, such as patent number 202322147071.1 discloses a dam monitoring assembly, the drafting assembly passes through the connecting rope around the line wheel to pull the installation assembly, pressure sensor and float block move downward along the connecting track under the action of guide wheel and sink into dam water for monitoring, when maintaining, the installation assembly and pressure sensor are driven by the buoyancy of float block and move upward along the connecting track under the action of guide wheel and float out of water surface, to realize the purpose of pressure sensor descending or ascending.

[0004] However, since dam belongs to natural water area, small animals such as shells are easy to breed in it, and waterweeds and algae are also present, and the maintenance frequency is relatively low, so the connecting track is easy to be blocked, the guide wheel cannot pass through smoothly, the actual descending and ascending functions are affected, use is affected, and improvement is needed. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model provides a water conservancy dam on -line monitoring device, which is used to solve the problem that the water pressure sensor of the dam monitoring assembly in the prior art is prone to be blocked and affects use when monitoring water pressure.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A water conservancy dam on -line monitoring device, including the fixed frame that is vertically fixed and installed in the inside of dam and the sliding slot that is vertically fixed in one side of fixed frame, the trapezoidal sliding block is slidably connected in the sliding slot, the trapezoidal sliding block is fixed with weight through crosspiece, and the water pressure sensor is installed in the recess provided on the weight;

[0008] The fixed platform is horizontally arranged above the fixed frame, the winch and the fixed pulley installed through the support frame are fixed on the fixed platform, and the steel wire rope of the winch is wound over the fixed pulley from above and is fixedly connected with the top of the weight.

[0009] The fixed platform is further provided with a height increasing frame inside the supporting frame and below the fixed pulley, a telescopic push rod is horizontally installed on the height increasing frame, a connecting frame is fixed to the front end of the piston rod of the telescopic push rod, and a pressure sensor is fixed to the side wall of the connecting frame;

[0010] A fork frame is slidably connected to the height increasing frame through a guide groove, a friction wheel is installed on the fork frame and faces the steel wire rope below one side of the fixed pulley, a waterproof box is fixed to the position corresponding to the rotating shaft of one end of the friction wheel on the fork frame, a distance measuring gear fixed to the rotating shaft of one end of the friction wheel and a distance measuring sensor facing the distance measuring gear are arranged in the waterproof box, a through slot is arranged at one end of the fork frame corresponding to the pressure sensor, and a pin rod fixed to the connecting frame is movably inserted into the through slot.

[0011] Preferably, the top and bottom inclined surfaces of the trapezoidal sliding block are sharpened.

[0012] Preferably, the groove is arranged at the middle and upper side of the weight, and the water pressure sensor does not protrude from the side of the weight.

[0013] Preferably, the weight is below the side of the fixed pulley, and the steel wire rope between the weight and the fixed pulley is arranged in an inclined manner.

[0014] Preferably, the distance between the pressure sensor and the fork frame is less than the transverse width of the through slot, and the horizontal distance between the friction wheel and the facing steel wire rope is less than the distance between the pressure sensor and the fork frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The water pressure sensor of the utility model is installed on the weight, the trapezoidal sliding block is lowered and raised in the sliding groove during the unwinding and winding of the hoist steel wire rope, the blockage in the sliding groove is effectively scraped, so that the water pressure sensor on the weight is smoothly lowered and raised to change the height position in the dam water, and the smooth use is ensured, and the problem that the water pressure sensor of the dam monitoring assembly in the prior art is easily blocked and affected during the lowering and raising is solved.

[0017] (2) The telescopic push rod pushes the friction wheel to support the steel wire rope through the connecting frame and the fork frame, when the weight and the water pressure sensor are lowered, the pressure sensor between the connecting frame and the fork frame is extruded to increase the value, the friction wheel is rotated to drive the distance measuring gear to rotate, and the distance is monitored by the distance measuring sensor, so that the unwinding length of the steel wire rope of the hoist and the lowering depth of the weight are monitored, the inside mud of the dam is increased to cause the weight to touch the bottom in advance, the pressure of the friction wheel and the pressure sensor is reduced by the steel wire rope, and the dam depth change can be monitored in time, the dam water storage change is reflected, and the multi-aspect monitoring is realized, so that the utility model has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the structure schematic view of the fixed table corresponding position of the utility model;

[0020] Figure 3 It is the structure schematic view of the pad high stand corresponding position of the utility model;

[0021] Figure 4 It is the structure plan view of the fork stand corresponding position of the utility model;

[0022] Figure 5 It is the structure plan view of the fork stand corresponding position of the utility model;

[0023] Figure 6 It is the profile of the sliding groove and trapezoidal sliding block of the utility model;

[0024] Figure 7 It is the plan view of the sliding groove and heavy hammer of the utility model;

[0025] Figure 8 It is the side view of the sliding groove and heavy hammer of the utility model;

[0026] Figure 9 It is the system principle diagram of the utility model.

[0027] In the drawing: 1, fixed frame; 2, sliding groove; 3, trapezoidal sliding block; 4, crosspiece; 5, heavy hammer; 501, recess; 6, water pressure sensor; 7, fixed table; 8, winch; 801, steel wire rope; 9, support frame; 10, fixed pulley; 11, pad high stand; 12, telescopic push rod; 13, connecting frame; 14, pressure sensor; 15, guide slot; 16, fork stand; 1601, through slot; 17, friction wheel; 18, waterproof box; 19, distance measuring gear; 20, distance measuring sensor; 21, pin rod. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] As Figures 1-9The utility model provides a technical scheme: a water conservancy dam on -line monitoring device, including vertical fixed installation in dam inner side's mounting bracket 1 and vertical fixed in mounting bracket 1 one side's sliding slot 2, the trapezoidal sliding block 3 of sliding connection has in sliding slot 2, the top bottom inclined surface of trapezoidal sliding block 3 is all opened blade, and trapezoidal sliding block 3 is fixed with heavy hammer 5 through crosspiece 4.

[0030] Heavy hammer 5 is located below the side of fixed pulley 10, and the steel wire rope 801 between heavy hammer 5 and fixed pulley 10 is inclinedly arranged, the distance between pressure sensor 14 and fork 16 is less than the transverse width of slot 1601, and the horizontal distance between friction wheel 17 and the steel wire rope 801 opposite to each other is less than the distance between pressure sensor 14 and fork 16, water pressure sensor 6 is installed in the recess 501 arranged on heavy hammer 5, the recess 501 is arranged in the middle and upper side of heavy hammer 5, and the water pressure sensor 6 does not protrude from the side of heavy hammer 5, so that the water pressure sensor 6 is avoided from being impacted by external objects.

[0031] The fixed platform 7 is horizontally arranged above the mounting bracket 1, the winch 8 and the fixed pulley 10 installed through the support frame 9 are fixed on the fixed platform 7, and the steel wire rope 801 of the winch 8 is wound around the fixed pulley 10 from above and fixedly connected with the top of heavy hammer 5.

[0032] The fixed platform 7 is also fixed with the heightening frame 11 located in the inside of the support frame 9 and below the fixed pulley 10, the telescopic push rod 12 is horizontally installed on the heightening frame 11, the piston rod front end of the telescopic push rod 12 is fixed with the connecting frame 13, and the sidewall of the connecting frame 13 is fixed with the pressure sensor 14.

[0033] The fork 16 is slidably connected to the heightening frame 11 through the guide groove 15, the friction wheel 17 opposite to the steel wire rope 801 below one side of the fixed pulley 10 is installed on the fork 16, the waterproof box 18 is fixed on the fork 16 at the position corresponding to the one end rotating shaft of the friction wheel 17, the distance measuring gear 19 fixedly installed on the one end rotating shaft of the friction wheel 17 and the distance measuring sensor 20 opposite to the distance measuring gear 19 are arranged in the waterproof box 18, the slot 1601 is arranged at one end of the fork 16 corresponding to the pressure sensor 14, and the pin rod 21 fixed on the connecting frame 13 is movably inserted into the slot 1601.

[0034] The on-line monitoring device completes monitoring through the controller, drives the winch 8 and the telescopic push rod 12 to work, and receives the data of the distance measuring sensor 20, the pressure sensor 14 and the water pressure sensor 6 at the same time.

[0035] Working principle:

[0036] The telescopic push rod 12 is extended, the friction wheel 17 supporting the steel wire rope 801 is pushed by the connecting frame 13 and the fork frame 16, the winch 8 unwinds or winds the steel wire rope 801, the heavy hammer 5 drives the water pressure sensor 6 to descend or ascend under the action of gravity and tension, the trapezoidal sliding block 3 can automatically scrape off the foreign matters in the sliding groove 2, and the water pressure sensor 6 can smoothly descend or ascend, the friction wheel 17 is extruded by the steel wire rope 801, so that the pressure sensor 14 between the connecting frame 13 and the fork frame 16 is also extruded, and the value of the pressure sensor 14 increases.

[0037] The friction wheel 17 rotates to drive the distance measuring gear 19 to rotate the distance measuring sensor 20 to monitor the distance, according to the unwinding and winding conditions of the winch 8, combined with the distance measuring of the distance measuring sensor 20, the descending and ascending states of the water pressure sensor 6 and the descending and ascending distances can be known, so as to reflect the depth position in the water.

[0038] When the water pressure sensor 6 reaches the specified depth, the telescopic push rod 12 drives the connecting frame 13 and the fork frame 16 to move to the left, so that the friction wheel 17 is separated from the steel wire rope 801, and the value of the pressure sensor 14 disappears, at this time, the water pressure sensor 6 can be continuously monitored online, when the heavy hammer 5 touches the bottom in advance due to the increase of the sediment inside the dam, the pressure of the friction wheel 17 and the pressure sensor 14 on the steel wire rope 801 decreases, which can be monitored in time.

Claims

1. An online monitoring device for a water conservancy dam, comprising a fixed frame (1) vertically fixedly installed on the inner side of the dam and a sliding groove (2) vertically fixed on one side of the fixed frame (1), characterized in that: A trapezoidal slider (3) is slidably connected in the groove (2). A counterweight (5) is fixed to the trapezoidal slider (3) by a crossbar (4). A water pressure sensor (6) is installed in the groove (501) on the counterweight (5). A fixed platform (7) is horizontally arranged above the fixed frame (1). A winch (8) and a fixed pulley (10) installed by a support frame (9) are fixed on the fixed platform (7). The wire rope (801) of the winch (8) passes over the fixed pulley (10) from above and is fixedly connected to the top of the counterweight (5). The fixed platform (7) is also fixed with a raised frame (11) located inside the support frame (9) and below the fixed pulley (10). A telescopic push rod (12) is horizontally installed on the raised frame (11). A connecting frame (13) is fixed to the front end of the piston rod of the telescopic push rod (12). A pressure sensor (14) is fixed on the side wall of the connecting frame (13). A fork (16) is slidably connected to the raised frame (11) via a guide groove (15). A friction wheel (17) is installed on the fork (16) facing the steel wire rope (801) below the fixed pulley (10). A waterproof box (18) is fixed on the fork (16) at the position of the rotating shaft at one end of the friction wheel (17). A distance measuring gear (19) and a distance measuring sensor (20) facing the distance measuring gear (19) are fixedly installed on the rotating shaft at one end of the friction wheel (17) inside the waterproof box (18). A through groove (1601) is provided at one end of the fork (16) corresponding to the pressure sensor (14). A pin (21) fixed on the connecting frame (13) is movably inserted into the through groove (1601).

2. The online monitoring device for a water conservancy dam according to claim 1, characterized in that: The top and bottom slopes of the trapezoidal slider (3) are both sharpened.

3. The online monitoring device for a water conservancy dam according to claim 1, characterized in that: The groove (501) is located in the middle and above the side of the weight (5), and the water pressure sensor (6) does not protrude from the side of the weight (5).

4. The online monitoring device for a water conservancy dam according to claim 1, characterized in that: The weight (5) is located below the side of the fixed pulley (10), and the steel wire rope (801) between the weight (5) and the fixed pulley (10) is inclined.

5. The online monitoring device for a water conservancy dam according to claim 1, characterized in that: The distance between the pressure sensor (14) and the fork (16) is less than the lateral width of the slot (1601), and the horizontal distance between the friction wheel (17) and the opposite wire rope (801) is less than the distance between the pressure sensor (14) and the fork (16).

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