Flood prevention early warning device for reservoir

Abstract

The utility model relates to a flood prevention early warning device for a reservoir. The flood prevention early warning device comprises an L-shaped frame, an alarm is installed on a transverse frame of the L-shaped frame, a threaded section is arranged on a vertical frame of the L-shaped frame, a cover body is connected to the threaded section in a threaded mode, the cover body covers the outer side of the vertical frame, and an air hole communicated with the outside is formed in the cover body. A floating block is connected to the vertical frame in the cover body in a sliding mode, and a trigger switch is fixedly connected into the cover body through a fixing plate. The cover body can block stormy waves, and the water surface in the cover body is flat, so that false alarms caused by the stormy waves can be prevented. According to the utility model, the cover body and the trigger switch are driven by the motor to be in early warning positions of different water periods, and electric control adjustment according to different water periods is realized, so that the working pressure of management personnel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reservoir flood prevention, especially a reservoir flood prevention early warning device. BACKGROUND

[0002] In the management process of the reservoir, the water level of the reservoir needs to be paid attention to at all times, especially during the flood prevention period, and generally, special personnel are arranged for patrol, and the water level is observed by means of a warning line drawn on the reservoir dam or a water level marker pole inserted in the water to display the water level, which not only increases the labor intensity of the reservoir management personnel, but also cannot know the water level change in the first time, and the flood prevention has a lag.

[0003] For example, a utility model patent with the announcement number CN219695841U and the name of a reservoir flood prevention early warning device discloses an early warning device with an adjustable trigger switch position and an automatic alarm function, which can not only solve the lag problem of the existing early warning method, but also adjust the warning line height according to different water conditions, so that the early warning device is more flexible. However, the way of adjusting the warning line height of the device is still to rely on manual adjustment of the fixing bolt, which still constitutes a certain labor intensity for the management personnel. Moreover, the device has no false touch prevention measures, and the float ball may touch the switch under the action of wind and surge, instead of the real rise of the water level, thereby causing false alarms. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a reservoir flood prevention early warning device, which aims to solve the problems existing in the prior art.

[0005] The reservoir flood prevention early warning device provided by the embodiments of the present application comprises an L-shaped frame, an alarm is installed on the horizontal frame of the L-shaped frame, a threaded section is arranged on the vertical frame of the L-shaped frame, a cover body is threadedly connected to the threaded section, the cover body is arranged on the outer side of the vertical frame, and a gas hole communicating with the outside is formed in the cover body; a floating block is slidably connected to the vertical frame in the cover body, a trigger switch is fixedly connected to the cover body through a fixing plate, and the floating block can contact the trigger switch when rising along the vertical frame.

[0006] The upper end of the cover body is fixedly connected with a vertical body, the inner side of the vertical body is rotatably connected with a rotating body, the inner side of the rotating body is provided with an internal thread, and the rotating body is connected to the threaded section through the internal thread; a window is formed in the side surface of the vertical body, a gear ring is installed on the rotating body at a position corresponding to the window, a driving gear is arranged outside the window, the driving gear is connected with the gear ring through tooth meshing, and a motor is drivingly connected to the driving gear.

[0007] Further, a through hole is formed at the center of the floating block, the diameter of the through hole is greater than the diameter of the vertical frame, the upper surface of the floating block is fixedly connected with a ring-shaped trigger block, and the trigger block has the same center as the floating block.

[0008] Further, the inner side of the vertical body is in a groove type, the rotating body is located in the groove, and one bearing is installed at each of the upper and lower ends of the rotating body, and the rotating body is connected with the vertical body through the bearings.

[0009] Further, the driving gear partially extends into the window to engage with the gear ring, the rotating shaft of the driving gear vertically extends, and the end of the rotating shaft is connected with the motor through the bevel gear set, and the motor is installed on the cover body.

[0010] Further, the motor, the bevel gear set and the driving gear are arranged in the shielding box body, and the output shaft of the motor and the rotating shaft of the driving gear are both rotationally connected on the shielding box body.

[0011] The utility model discloses the beneficial effect is: the utility model discloses with cover body can with wind and wave barrier, the water surface is flat in cover body and can prevent the false alarm caused by wind and wave. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole section structure schematic diagram of the utility model.

[0013] Figure 2 It is the local enlarged structure schematic diagram of the utility model.

[0014] In the drawing:

[0015] 1, L type frame;2, alarm;3, threaded section;4, cover body;5, air hole;6, float block;7, fixed plate;8, trigger switch;9, vertical body;10, rotating body;11, bearing;12, window;13, gear ring;14, driving gear;15, bevel gear set;16, motor;17, trigger block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] As Figure 1 And Figure 2The reservoir flood control early warning device shown includes an L-shaped frame 1. An alarm 2 is installed on the horizontal frame of the L-shaped frame 1, which can be an audible and visual alarm 2. A threaded section 3 is provided on the vertical frame of the L-shaped frame 1, and a cover 4 is threadedly connected to the threaded section 3. The cover 4 covers the outside of the vertical frame, and its height is less than or equal to the height of the vertical frame. An air hole 5 is provided on the cover 4 to communicate with the outside, ensuring that the air pressure inside and outside the cover 4 is the same. A float 6 is slidably connected to the vertical frame inside the cover 4. The float 6 rises or falls with the water level. A trigger switch 8 is fixedly connected inside the cover 4 via a fixing plate 7. When the float 6 rises along the vertical frame, it can stop the trigger switch 8, thereby activating the alarm 2.

[0018] Specifically, such as Figure 2 As shown, a vertical body 9 is fixedly connected to the upper end of the cover 4, and a rotating body 10 is rotatably connected to the inner side of the vertical body 9. The inner side of the vertical body 9 is groove-shaped, and the rotating body 10 is located in the groove. A bearing 11 is installed at each of the upper and lower ends of the rotating body 10. The bearing 11 can be a thrust plane bearing 11. The rotating body 10 is connected to the vertical body 9 through the bearing 11, so that the rotating body 10 rotates inside the vertical body 9.

[0019] The rotating body 10 has an internal thread on its inner side and is connected to the threaded section 3 via the internal thread. When the rotating body 10 rotates, it will move up or down along the threaded section 3 due to the thread engagement. The side of the vertical body 9 has a window 12. A toothed ring 13 is installed on the rotating body 10 at the position corresponding to the window 12. A drive gear 14 is provided on the outer side of the window 12. The drive gear 14 and the toothed ring 13 are connected by tooth engagement, so that the rotation of the drive gear 14 can drive the toothed ring 13 to rotate, thereby driving the rotating body 10 to rotate.

[0020] A motor 16 is connected to the drive gear 14. Part of the drive gear 14 extends into the window 12 and meshes with the gear ring 13. The shaft of the drive gear 14 extends vertically, and the end of the shaft is connected to the motor 16 through a bevel gear set 15. The motor 16 is mounted on the cover 4. The motor 16 is a self-locking motor. The motor 16, bevel gear set 15, and drive gear 14 are housed in a shielding box (not shown in the figure), and the output shaft of the motor 16 and the shaft of the drive gear 14 are rotatably connected to the shielding box. The transmission components such as the motor 16 and drive gear 14 are fixed relative to the cover 4. The cover 4 is fixed relative to the rotating body 10 through a bearing 11. When the rotating body 10 moves along the threaded section 3, it can drive the vertical body 9, the cover 4, and the transmission components of the motor 16 to move together, so that the drive gear 14 can always maintain a fixed relative position with the rotating body 10.

[0021] The floating block 6 is provided with a through hole at the center, and the diameter of the through hole is larger than the diameter of the vertical frame, so that the floating block 6 is spaced from the vertical frame and can freely move along the vertical frame. In addition, a stopper (not shown in the figure) is arranged at the bottom of the vertical frame to prevent the floating block 6 from sliding down from the lower end of the vertical frame. The upper surface of the floating block 6 is fixedly connected with a ring-shaped trigger block 17, and the trigger block 17 is coaxial with the floating block 6. The alarm 2 is triggered by the trigger block 17 abutting against the trigger switch 8.

[0022] In use, the L-shaped frame 1 is first fixed on the reservoir dam through the horizontal frame of the L-shaped frame 1, the vertical frame extends into the water, and the lower end of the cover body 4 also extends into the water, so that the cover body 4 can form a shielding and blocking surge on the outside of the floating block 6, preventing the floating block 6 from rising and touching the switch to cause a false alarm. The control of the motor 16 can be set as remote control, and according to the different early warning requirements in the wet season and the dry season, the motor 16 is controlled to drive the cover body 4 to rise and fall so that the trigger switch 8 is located at the early warning water level height of the current period, and when the floating block 6 rises to the early warning water level due to the rise of the water level, the trigger switch 8 is contacted or abutted to trigger the alarm.

[0023] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting.

Claims

1. A reservoir flood control early warning device, comprising an L-shaped frame, wherein an alarm is installed on the crossbar of the L-shaped frame, characterized in that, The vertical frame of the L-shaped frame is provided with a threaded section, and a cover is threadedly connected to the threaded section. The cover is placed on the outside of the vertical frame and has an air hole that communicates with the outside. A float is slidably connected to the vertical frame inside the cover. A trigger switch is fixedly connected to the cover by a fixing plate. The float can contact the trigger switch when it rises along the vertical frame. The upper end of the cover is fixedly connected to a vertical body, and a rotating body is rotatably connected to the inner side of the vertical body. The inner side of the rotating body is provided with an internal thread, and the rotating body is connected to the threaded section through the internal thread. A window is opened on the side of the vertical body, and a toothed ring is installed on the rotating body at the position corresponding to the window. A drive gear is provided on the outer side of the window. The drive gear and the toothed ring are connected through tooth meshing, and a motor is driven to the drive gear.

2. The reservoir flood control early warning device according to claim 1, characterized in that, A through hole is provided at the center of the float, and the diameter of the through hole is larger than the diameter of the vertical frame; an annular trigger block is fixedly connected to the upper surface of the float, and the trigger block is concentric with the float.

3. The reservoir flood control early warning device according to claim 1, characterized in that, The inner side of the vertical body is groove-shaped, and the rotating body is located in the groove. A bearing is installed at each of the upper and lower ends of the rotating body, and the rotating body is connected to the vertical body through the bearings.

4. The reservoir flood control early warning device according to claim 1, characterized in that, The drive gear extends into the window and meshes with the gear ring. The shaft of the drive gear extends vertically and the end of the shaft is connected to the motor through a bevel gear set. The motor is mounted on the cover.

5. The reservoir flood control early warning device according to claim 4, characterized in that, The motor, bevel gear set, and drive gear are housed in the shielding box, and the output shaft of the motor and the rotating shaft of the drive gear are rotatably connected to the shielding box.

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