Foldable hydraulic engineering temporary cofferdam
By designing a foldable temporary cofferdam for water conservancy projects, and using floats and connecting frames to release water and increase counterweight when the water level is too high, the problem of cofferdam collapse when the water level is too high has been solved, achieving structural stability and convenient dismantling operations.
Patent Information
- Application Number
- CN202520206069.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing temporary cofferdams in water conservancy projects are prone to collapse due to excessive pressure when the water level is too high, posing a safety hazard.
A foldable temporary cofferdam for water conservancy projects was designed, comprising components such as a counterweight box, inlet frame, gate, connecting frame, float, and water pump. The float drives the connecting frame and gate to move, thereby releasing water when the water level is too high and increasing the counterweight to prevent collapse.
When the water level is too high, the counterweight is increased by releasing water to prevent the cofferdam from collapsing and ensure structural stability. When the water level returns to normal, it can be folded and stored for easy transport.
Smart Images

Figure CN223780869U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to temporary cofferdam technical field especially, it relates to a kind of foldable water conservancy project temporary cofferdam. BACKGROUND
[0002] Temporary cofferdam in water conservancy project is a kind of temporary structure for creating dry construction environment in river, lake or other water body. It is mainly used to cut off river water or reduce water flow to facilitate underwater engineering operations such as dam construction, pier installation. However, due to the existing water conservancy project temporary cofferdam, it is usually a simple baffle structure, which is prone to collapse due to excessive pressure when the water level is too high, which is relatively dangerous.
[0003] Therefore, a foldable water conservancy project temporary cofferdam that can discharge water and increase counterweight when the water level is too high to avoid collapse has been developed. SUMMARY
[0004] To overcome the shortcomings of the existing water conservancy project temporary cofferdam, which is usually a simple baffle structure and prone to collapse due to excessive pressure when the water level is too high, the utility model provides a foldable water conservancy project temporary cofferdam that can discharge water and increase counterweight when the water level is too high to avoid collapse.
[0005] The technical implementation scheme of the utility model is: a foldable water conservancy project temporary cofferdam, including counterweight box, water inlet frame, gate, connecting frame, floating ball, water pump, water outlet pipe, first baffle, second baffle, hinge, pivot, telescopic rod and pin, the front side of the upper part of the counterweight box is connected with the water inlet frame, the gate is connected with the water inlet frame in a sliding manner, the left and right parts of the gate are connected with the connecting frame on the upper side, the connecting frame is connected with the floating ball, the lower inside of the counterweight box is connected with the water pump, the upper side of the water pump is connected with the water outlet pipe, the water outlet pipe passes through the counterweight box, the left and right sides of the counterweight box are rotatably connected with the first baffle through two hinges, the first baffle is rotatably connected with the second baffle through two hinges, the rear side of the first baffle and the second baffle is rotatably connected with the pivot, the pivot is connected with the telescopic rod, the telescopic rod is connected with the pin.
[0006] Optionally, the pin is provided with a gripping ring.
[0007] Optionally, it further includes a limiting block, the front side of the left and right parts of the gate is connected with the limiting block, and the limiting block is connected with the water inlet frame in a sliding manner.
[0008] Optionally, it further includes a threaded nail, the lower part of the first baffle and the second baffle is connected with the threaded nail.
[0009] Optionally, it further includes a ground nail, the telescopic end of the telescopic rod is connected with the ground nail.
[0010] Optionally, the air bags are further included, and the second baffle is connected with the air bag on the side away from each other.
[0011] Compared with the prior art, the utility model has the advantages that when the water level is too high, the floating ball drives the connecting frame and the gate to move upwards, the limiting block limits the gate, water flows into the counterweight box from the water inlet frame, the effect of relieving flow and increasing counterweight when the water level is too high is achieved, and the collapse is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0013] Figure 2 It is a three-dimensional structure schematic view of the counterweight box and the first baffle and other components of the utility model.
[0014] Figure 3 It is a three-dimensional structure schematic view of the water inlet frame and the first baffle and other components of the utility model.
[0015] Figure 4 It is a three-dimensional structure sectional view of the utility model.
[0016] Figure 5 It is a three-dimensional structure schematic view of the floating ball and the gate and other components of the utility model.
[0017] Figure 6 It is a three-dimensional structure schematic view of the telescopic rod and the air bag and other components of the utility model.
[0018] The meanings of the reference signs in the drawing are as follows: 1, counterweight box, 2, water inlet frame, 3, gate, 4, connecting frame, 5, floating ball, 6, limiting block, 7, water pump, 8, water outlet pipe, 9, first baffle, 91, second baffle, 10, threaded peg, 11, hinge, 12, rotating shaft, 13, telescopic rod, 14, bayonet, 15, ground nail, 16, air bag. DETAILED DESCRIPTION
[0019] 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.
[0020] A foldable temporary cofferdam for water conservancy projects, like Figures 1-6As shown, including counterweight box 1, water frame 2, gate 3, connecting frame 4, float ball 5, limit block 6, water pump 7, water outlet pipe 8, first baffle 9, second baffle 91, threaded nails 10, hinges 11, pivot 12, telescopic rod 13, pin 14, ground nails 15 and air bag 16, the upper front side of the counterweight box 1 is connected with the water frame 2, the water frame 2 is slidably connected with the gate 3, the left and right two parts of the gate 3 are connected with the connecting frame 4, the connecting frame 4 is connected with the float ball 5, the left and right two parts of the gate 3 are connected with the limit block 6, the limit block 6 is slidably connected with the water frame 2, the lower inside of the counterweight box 1 is connected with the water pump 7, the upper side of the water pump 7 is connected with the water outlet pipe 8, the water outlet pipe 8 passes through the counterweight box 1, the left and right sides of the counterweight box 1 are rotatably connected with the first baffle 9 through the upper and lower two hinges 11, the first baffle 9 is rotatably connected with the second baffle 91 through the upper and lower two hinges 11, the lower part of the first baffle 9 and the second baffle 91 is clamped with the threaded nails 10, the rear side of the first baffle 9 and the second baffle 91 is rotatably connected with the pivot 12, the pivot 12 is connected with the telescopic rod 13, the telescopic rod 13 is clamped with the pin 14, the pin 14 is provided with a gripping ring, which is convenient to grip, the telescopic end of the telescopic rod 13 is connected with the ground nails 15, and the side away from each other of the second baffle 91 is connected with the air bag 16.
[0021] When the utility model is used, first of all, the counterweight box 1 is placed at the temporary cofferdam position, then the first baffle 9 and the second baffle 91 are unfolded by rotating the hinge 11, the first baffle 9 and the second baffle 91 are fixed by using the threaded nails 10, the pivot 12 is rotated, the angle of the telescopic rod 13 is adjusted, the pin 14 is removed, the length of the telescopic rod 13 is adjusted, the ground nails 15 are inserted into the soil, the stability of the first baffle 9 and the second baffle 91 is enhanced, the first baffle 9 and the second baffle 91 intercept the water body, the second baffle 91 is sealed with the shore by inflating the air bag 16, water leakage is avoided, when the water level is too high, the float ball 5 drives the connecting frame 4 and the gate 3 to move upwards, the limit block 6 limits the gate 3, the water flows from the water frame 2 into the counterweight box 1, thereby playing the role of being able to drain when the water level is too high while increasing the counterweight, avoiding collapse, when the water level returns to normal, the water in the counterweight box 1 can be pumped out from the water outlet pipe 8 by starting the water pump 7, when the cofferdam is not needed, the first baffle 9 is rotated, the first baffle 9 is clamped with the left and right sides of the counterweight box 1 respectively, then the second baffle 91 is clamped with the rear side of the counterweight box 1, thereby being folded and stored, which is convenient to carry.
[0022] While embodiments of the present application have been shown and described, it is to be understood that the embodiments can be changed without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A foldable temporary cofferdam for hydraulic engineering, characterized in that: The utility model provides a water conservancy device, including counterweight box (1), water inlet frame (2), gate (3), connecting frame (4), float ball (5), water pump (7), water outlet pipe (8), first baffle (9), second baffle (91), hinge (11), pivot (12), telescopic link (13) and bayonet (14), the front side of counterweight box (1) upper portion is connected with water inlet frame (2), water inlet frame (2) is slidably connected with gate (3), and the upper side of gate (3) left and right two parts is connected with connecting frame (4), and the upper side of connecting frame (4) is connected with float ball (5), and the inner side of counterweight box (1) lower portion is connected with water pump (7), and the upper side of water pump (7) is connected with water outlet pipe (8), and water outlet pipe (8) passes through counterweight box (1), and the left and right sides of counterweight box (1) are rotatably connected with first baffle (9) through two hinges (11) up and down, and the upper side of first baffle (9) is rotatably connected with second baffle (91) through two hinges (11) up and down, and the rear side of first baffle (9) and second baffle (91) is rotatably connected with pivot (12), and the upper side of pivot (12) is connected with telescopic link (13), and the upper side of telescopic link (13) is connected with bayonet (14).
2. A collapsible temporary cofferdam for hydraulic engineering works according to claim 1, characterised in that: Bayonet (14) is equipped with a grip ring.
3. The collapsible temporary cofferdam for hydraulic engineering according to claim 1, characterized in that: Still include limiting block (6), and the front side of gate (3) left and right two parts is connected with limiting block (6), and limiting block (6) is slidably connected with water inlet frame (2).
4. The collapsible temporary cofferdam for hydraulic engineering according to claim 1, characterized in that: Still include threaded peg (10), and the lower part of first baffle (9) and second baffle (91) is connected with threaded peg (10).
5. The collapsible temporary cofferdam for hydraulic engineering according to claim 1, characterized in that: Still include ground nail (15), and the telescopic end of telescopic link (13) is connected with ground nail (15).
6. The collapsible temporary cofferdam for hydraulic engineering according to claim 1, characterized in that: Still include air bag (16), and the side of second baffle (91) away from each other is connected with air bag (16). Still include air bag (16), and the side of second baffle (91) away from each other is connected with air bag (16).