A water conservancy construction cofferdam device and its usage method

Abstract

The present invention discloses a water conservancy construction cofferdam device and its usage method, which relates to the field of water conservancy construction, and solves the problem that the existing water conservancy construction cofferdam device is difficult to flexibly adjust according to the water flow direction and water level height, and improve the use stability of the device while reducing resistance. It includes a rotating ring, an arc-shaped base, a cofferdam mechanism, a reinforcement mechanism and an adjustment mechanism. The cofferdam mechanism includes a fixed frame and a baffle. The reinforcement mechanism includes an elastic plate, a first positioning rod and a rotating member. In the present invention, the baffle is assembled with the fixed frame, and the elastic plate senses the water pressure intensity around the baffle to judge the water flow direction, drives the rotating member to drive the baffle to rotate, so that the corner position of the fixed frame is opposite to the water flow direction, reducing the frontal impact of the water flow on the baffle. At the same time, the first positioning rod at the bottom of the baffle on the side opposite to the water flow direction is driven to move down and insert into the water bottom to enhance the supporting force, and the height of the cofferdam as a whole is adjusted by the adjustment mechanism sensing the height of the water level.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy construction, and specifically provides a water conservancy construction cofferdam device and a using method thereof. Background Technique

[0002] A cofferdam refers to a temporary enclosure structure built during the construction of water conservancy projects for constructing permanent water conservancy facilities. Its function is to prevent water and soil from entering the construction location of the building, so as to drain water within the cofferdam, excavate the foundation pit, and build the building. Cofferdams are generally mainly used in water conservancy construction. Except as part of the formal building, they are generally demolished after use. The height of the cofferdam is higher than the highest water level that may occur during the construction period. Its function can not only prevent water and enclose water, but also support the pit wall of the foundation pit.

[0003] When the existing water conservancy construction cofferdam device is in use, the position of the baffle is relatively fixed. Due to changes in factors such as tides and wind directions, the water flow direction and the height of the water body will also change. The baffle of the existing cofferdam device is in a vertical state. When the water flow direction is perpendicular to the baffle, the overall impact force on the baffle is large. And the service life of the cofferdam equipment is generally up to several weeks. The frequent change of the water flow direction will cause the connection between the cofferdam and the bottom of the water body to become loose, affecting the stability of the cofferdam device, and thus prone to water seepage. When the water level changes, the height of the existing cofferdam device is relatively fixed and cannot be flexibly adjusted according to the water level height. It is often necessary to set a height far above the water surface, with low disassembly and assembly efficiency. Moreover, the wind resistance on the side of the cofferdam will also increase correspondingly in strong wind weather, affecting the overall stability of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a water conservancy construction cofferdam device and a using method thereof that are convenient for improving the adaptability of the cofferdam device to water flow and water level changes and enhancing the overall stability of the device, so as to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: A water conservancy construction cofferdam device, including a rotating ring, a cofferdam mechanism, a reinforcement mechanism and an adjustment mechanism. The bottom of the rotating ring is rotatably connected with a plurality of arc-shaped bases, and the ends of the plurality of arc-shaped bases are connected to form a circular ring. The cofferdam mechanism includes a plurality of fixing frames uniformly and fixedly installed on the upper side of the rotating ring. A baffle is provided between adjacent fixing frames. By assembling and splicing the baffle with the fixing frame, the function of sealing the cofferdam can be realized. The reinforcement mechanism includes an elastic plate installed on the side of the baffle. A plurality of first positioning rods are provided at the bottom of the baffle. A rotating member for driving the relative rotation adjustment of the rotating ring is provided on the arc-shaped base. By using the elastic plate to sense the water pressure intensity around the baffle, judge the water flow direction, and drive the rotating member to drive the rotating ring and the baffle to rotate together, so that the corner position of the fixing frame is opposite to the water flow direction, reducing the frontal impact of the water flow on the baffle. At the same time, the first positioning rods at the bottom of the baffle on the side opposite to the water flow direction are linked to move downward and insert into the water bottom, improving the supporting force. The adjustment mechanism is installed in the fixing frame and the baffle, for sensing the height of the water level and adjusting the overall height of the cofferdam, avoiding water ingress inside the cofferdam when the water level increases, facilitating improving the adaptability of the cofferdam device to water flow and water level changes, and enhancing the overall stability of the device.

[0006] Preferably, the cofferdam mechanism further includes a plurality of bottom plates fixedly installed on the upper side of the rotating ring. The fixing frame is bent, and insertion slots capable of being inserted into the baffle in the vertical direction are provided at both sides of the fixing frame. A first connection buckle capable of being fixedly connected to the side of the baffle is fixedly connected to the side of the fixing frame, facilitating assembling and splicing the baffle with the fixing frame to realize the function of sealing the cofferdam.

[0007] Preferably, the reinforcement mechanism further includes a top plate fixedly installed between adjacent fixing frames. The top surface and the bottom surface of the elastic plate are respectively in sliding fit with the top plate and the bottom plate. A guiding groove is provided on the side of the fixing frame. Two ends of the elastic plate are respectively fixedly connected with guiding blocks slidably connected to the inner wall of the guiding groove in the horizontal direction. A return spring fixedly connected to the guiding groove is fixedly connected to the side of the guiding block. A control member for controlling the lifting adjustment of the first positioning rod is provided inside the baffle, facilitating improving the overall stability of the cofferdam device.

[0008] Preferably, the control member includes a lifting block fixedly installed at the top of the first positioning rod. A lifting groove is formed at the bottom of the baffle. The lifting block is slidably connected to the inner wall of the lifting groove in the vertical direction. A tension spring fixedly connected to the top of the lifting block and the top of the lifting groove is provided. A communication pipe communicating with the tops of multiple groups of the lifting grooves is formed in the baffle. A pressurizing member for pressurizing the communication pipe on the opposite side according to the force intensity of the elastic plate is provided on the elastic plate, facilitating the lifting adjustment of the first positioning rod.

[0009] Preferably, the pressurizing member includes a storage box fixedly installed on the bottom plate. A pressurizing block slidably connected to the inner wall of the storage box in the horizontal direction is fixedly connected to the side of the elastic plate. Multiple arc-shaped pipes are fixedly connected inside the rotating ring. Two ends of each arc-shaped pipe are respectively connected and communicated with a first pipe and a second pipe. The first pipe is connected and communicated with the storage box. A third pipe capable of being connected and communicated with the communication pipe and the second pipe is fixedly connected in the baffle, facilitating pressurizing the communication pipe on the opposite side according to the force intensity of the elastic plate.

[0010] Preferably, the adjusting mechanism includes a first lifting plate slidably connected to the inner wall of the fixed frame in the vertical direction. A device groove is formed in the baffle. A second lifting plate is slidably connected in the device groove in the vertical direction. The side of the first lifting plate can slidably fit with the side of the second lifting plate. A connecting bolt capable of connecting to the upper side of the second lifting plate is provided on the upper side of the first lifting plate. A floating block is fixedly connected to the upper end side of the second lifting plate, facilitating sensing the water level height and adjusting the overall height of the cofferdam to prevent water from entering the cofferdam when the water level rises.

[0011] Preferably, the rotating member includes a driving motor fixedly installed on any one of the fixed frames. The output end of the driving motor is coaxially and fixedly connected with a driving gear. An arc-shaped toothed ring is fixedly connected to the inner wall of the arc-shaped base. Multiple groups of the arc-shaped toothed rings can be connected to form a circular ring. The driving gear meshes with the arc-shaped toothed ring. A pressure sensor is fixedly connected in the storage box. A controller electrically connected to the pressure sensor and the driving motor is provided in the storage box. The controller is used to sense the value of the pressure sensor and control the rotation angle of the driving gear, facilitating the relative rotation adjustment of the rotating ring.

[0012] Preferably, a protective plate slidably attached to the outer wall of the fixed frame is fixedly connected to the side of the guiding block, facilitating preventing sediment from entering the guiding groove and affecting the sliding of the guiding block.

[0013] Preferably, a second connecting buckle is fixedly connected between multiple groups of the arc-shaped bases, and a plurality of groups of second positioning rods are evenly and fixedly connected to the bottom of the arc-shaped base, so as to stably connect the arc-shaped base and fix it to the bottom of the water.

[0014] A method for using a water conservancy construction cofferdam device comprises the following steps:

[0015] S1. Fix the arc-shaped base on the bottom of the water, then install the rotating ring on the arc-shaped base, and install the baffle between adjacent fixed frames to form a cofferdam device. Pump out the water inside the cofferdam, and then you can carry out the construction operation;

[0016] S2. The elastic plate senses the water pressure around the baffle, determines the direction of the water flow, drives the rotating member to drive the rotating ring and the baffle to rotate together, so that the rotation angle of the fixed frame is opposite to the direction of the water flow, reducing the front impact of the water flow on the baffle, and at the same time, the first positioning rod at the bottom of the baffle on the opposite side is moved downward and inserted into the water bottom in linkage with the water flow to enhance the supporting force;

[0017] S3. The height of the water level is sensed by the regulating mechanism, and the height of the cofferdam is adjusted to prevent water from entering the cofferdam when the water level increases;

[0018] S4. After the internal construction is completed, remove the baffle first, then remove the rotating ring and the arc base separately, and the whole equipment can be reassembled and used.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The invention provides a water conservancy construction cofferdam device and a method of using the same, which solves the problem that the existing water conservancy construction cofferdam device is difficult to flexibly adjust according to the water flow direction and water level height when in use, reduces resistance and improves the stability of equipment use. The baffle plate and the fixed frame are assembled and spliced to achieve the function of sealing the cofferdam, and the water pressure strength around the baffle plate is sensed by the elastic plate to judge the water flow direction, and the rotating member is driven to drive the rotating ring to rotate together with the baffle plate, so that the angular position of the fixed frame is opposite to the water flow direction, thereby reducing the frontal impact of the water flow on the baffle plate, and at the same time, the first positioning rod at the bottom of the baffle plate on the opposite side is moved downward and inserted into the bottom of the water to increase the supporting force, and the height of the water level is sensed by the adjusting mechanism, and the height of the cofferdam is adjusted as a whole to avoid water entering the cofferdam when the water level increases. The device is more flexible in adjustment while producing a fencing effect, and also avoids the situation that the cofferdam is too high above the water surface, which increases the wind resistance and affects the stability of the equipment. The equipment as a whole can be repeatedly assembled and used, and the disassembly and assembly are convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the partial structure of the rotating part of the present invention;

[0023] Figure 3 It is Figure 2 The enlarged view of area A in;

[0024] Figure 4 Schematic diagram of the partial structure of the cofferdam mechanism of the present invention;

[0025] Figure 5 Schematic diagram of the partial structure of the reinforcement mechanism of the present invention;

[0026] Figure 6 It is Figure 5 The enlarged view of area B in;

[0027] Figure 7 Cross-sectional view of the partial structure of the reinforcement mechanism of the present invention;

[0028] Figure 8 It is Figure 7 The enlarged view of area C in;

[0029] Figure 9 Exploded view of the partial structure of the adjustment mechanism of the present invention;

[0030] Figure 10 It is Figure 9 The enlarged view of area D in.

[0031] In the figure: 1 - rotating ring; 2 - arc base; 3 - cofferdam mechanism; 4 - fixing frame; 5 - baffle; 6 - reinforcement mechanism; 7 - elastic plate; 8 - first positioning rod; 9 - rotating part; 10 - adjustment mechanism; 11 - bottom plate; 12 - insertion slot; 13 - first connection buckle; 14 - top plate; 15 - guiding groove; 16 - guiding block; 17 - return spring; 18 - control part; 19 - lifting block; 20 - lifting groove; 21 - tension spring; 22 - connecting pipe; 23 - pressurizing part; 24 - storage box; 25 - pressurizing block; 26 - arc pipe; 27 - first pipeline; 28 - second pipeline; 29 - third pipeline; 30 - first lifting plate; 31 - device slot; 32 - second lifting plate; 33 - connecting bolt; 34 - floating block; 35 - driving motor; 36 - driving gear; 37 - arc gear ring; 38 - pressure sensor; 39 - protection plate; 40 - second connection buckle; 41 - second positioning rod. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a water conservancy construction cofferdam device, including a rotating ring 1, a cofferdam mechanism 3, a reinforcement mechanism 6 and an adjustment mechanism 10. The bottom of the rotating ring 1 is rotatably connected with a plurality of arc-shaped bases 2, and the ends of the plurality of arc-shaped bases 2 are connected to form a circular ring. The cofferdam mechanism 3 includes a plurality of fixing frames 4 uniformly and fixedly installed on the upper side of the rotating ring 1. A baffle 5 is arranged between adjacent fixing frames 4, which is used to assemble and connect the baffle 5 with the fixing frame 4 to realize the function of sealing the cofferdam. The reinforcement mechanism 6 includes an elastic plate 7 installed on the side of the baffle 5. A plurality of first positioning rods 8 are arranged at the bottom of the baffle 5. A rotating member 9 for driving the relative rotation adjustment of the rotating ring 1 is arranged on the arc-shaped base 2, which is used to sense the water pressure intensity around the baffle 5 through the elastic plate 7, judge the water flow direction, drive the rotating member 9 to drive the rotating ring 1 and the baffle 5 to rotate together, so that the corner position of the fixing frame 4 is opposite to the water flow direction, reduce the frontal impact of the water flow on the baffle 5, and at the same time link the first positioning rods 8 at the bottom of the baffle 5 on the side opposite to the water flow direction to move down and insert into the water bottom to enhance the supporting force. The adjustment mechanism 10 is installed in the fixing frame 4 and the baffle 5, which is used to sense the height of the water level and adjust the overall height of the cofferdam to prevent water from entering the cofferdam when the water level increases.

[0034] The cofferdam mechanism 3 further includes a plurality of bottom plates 11 fixedly installed on the upper side of the rotating ring 1. The fixing frame 4 is bent, and insertion slots 12 capable of being inserted into the baffle 5 in the vertical direction are opened at both sides of the fixing frame 4. A first connection buckle 13 capable of being fixedly connected with the side of the baffle 5 is fixedly connected to the side of the fixing frame 4. A second connection buckle 40 is fixedly connected between the plurality of arc-shaped bases 2, and a plurality of second positioning rods 41 are uniformly and fixedly connected to the bottom of the arc-shaped base 2.

[0035] The reinforcement mechanism 6 further includes a top plate 14 fixedly installed between adjacent fixing frames 4. The top and bottom surfaces of the elastic plate 7 are respectively in sliding contact with the top plate 14 and the bottom plate 11. A guiding groove 15 is opened on the side of the fixing frame 4. Both ends of the elastic plate 7 are respectively fixedly connected with guiding blocks 16 that are slidably connected with the inner wall of the guiding groove 15 in the horizontal direction. A return spring 17 fixedly connected with the guiding groove 15 is fixedly connected to the side of the guiding block 16. A protection plate 39 slidably attached to the outer wall of the fixing frame 4 is fixedly connected to the side of the guiding block 16. A control member 18 for controlling the lifting adjustment of the first positioning rod 8 is arranged in the baffle 5.

[0036] The control member 18 includes a lifting block 19 fixedly installed at the top end of the first positioning rod 8. A lifting groove 20 is formed at the bottom of the baffle 5. The lifting block 19 is slidably connected to the inner wall of the lifting groove 20 in the vertical direction. A tension spring 21 fixedly connected to the top of the lifting block 19 and fixedly connected to the top of the lifting groove 20 is provided. A communication pipe 22 communicating with the top ends of multiple groups of lifting grooves 20 is formed in the baffle 5. A pressurizing member 23 for pressurizing the communication pipe 22 on the opposite side according to the force intensity of the elastic plate 7 is provided on the elastic plate 7.

[0037] The pressurizing member 23 includes a storage box 24 fixedly installed on the bottom plate 11. A pressurizing block 25 slidably connected to the inner wall of the storage box 24 in the horizontal direction is fixedly connected to the side surface of the elastic plate 7. Multiple arc-shaped pipes 26 are fixedly connected inside the rotating ring 1. The two ends of the arc-shaped pipe 26 are respectively connected and communicated with a first pipe 27 and a second pipe 28. The first pipe 27 is connected and communicated with the storage box 24. A third pipe 29 capable of being connected and communicated with the communication pipe 22 and the second pipe 28 is fixedly connected inside the baffle 5.

[0038] The adjusting mechanism 10 includes a first lifting plate 30 slidably connected to the inner wall of the fixing frame 4 in the vertical direction. A device groove 31 is formed in the baffle 5. A second lifting plate 32 is slidably connected to the device groove 31 in the vertical direction. The side surface of the first lifting plate 30 can be slidably attached to the side surface of the second lifting plate 32. A connecting bolt 33 capable of connecting to the upper side of the second lifting plate 32 is provided on the upper side of the first lifting plate 30. A floating block 34 is fixedly connected to the upper end side surface of the second lifting plate 32.

[0039] The rotating member 9 includes a driving motor 35 fixedly installed on any one of the fixing frames 4. The output end of the driving motor 35 is coaxially fixedly connected with a driving gear 36. An arc-shaped gear ring 37 is fixedly connected to the inner wall of the arc-shaped base 2. Multiple arc-shaped gear rings 37 can be connected to form a circular ring. The driving gear 36 meshes with the arc-shaped gear ring 37. A pressure sensor 38 is fixedly connected inside the storage box 24. A controller electrically connected to the pressure sensor 38 and the driving motor 35 is provided inside the storage box 24. The controller is used to sense the value of the pressure sensor 38 and control the rotation angle of the driving gear 36.

[0040] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a use method of a water conservancy construction cofferdam device, including the following steps:

[0041] S1. Fix the arc-shaped base 2 at the bottom of the water, then install the rotating ring 1 on the arc-shaped base 2, and install the baffle 5 between adjacent fixing frames 4 to form a cofferdam device. Pump out the water inside the cofferdam, and construction operations can be carried out.

[0042] S2. The elastic plate 7 senses the water pressure around the baffle 5, determines the direction of the water flow, drives the rotating member 9 to drive the rotating ring 1 and the baffle 5 to rotate together, so that the rotation angle of the fixing frame 4 is opposite to the direction of the water flow, reducing the front impact of the water flow on the baffle 5, and at the same time, the first positioning rod 8 at the bottom of the baffle 5 on the opposite side is moved downward and inserted into the bottom of the water to enhance the supporting force;

[0043] S3. The height of the water level is sensed by the adjusting mechanism 10, and the height of the cofferdam is adjusted as a whole to avoid water ingress into the cofferdam when the water level increases;

[0044] S4. After the internal construction is completed, the baffle 5 is removed first, and then the rotating ring 1 and the arc base 2 are removed separately, and the whole equipment can be reassembled and used.

[0045] In this embodiment, multiple groups of arc bases 2 are connected to each other in a circular ring shape through the second connecting buckle 40, and the second positioning rod 41 at the bottom is inserted into the bottom of the water for sealing. At this time, multiple groups of arc gear rings 37 are spliced together to form an internal gear ring, and then the rotating ring 1 is rotatably connected to the top surface of the arc base 2, and the two sides of the baffle 5 are respectively inserted into the plug-in groove 12 of the adjacent fixing frame 4. A sealing gasket can be provided in the plug-in groove 12 to prevent water seepage at the gap position. After the baffle 5 is inserted, the third pipe 29 on the side is automatically connected to the opposite second pipe 28, and then the baffle 5 is connected to the fixing frame 4 through the first connecting buckle 13.

[0046] During the process of inserting the baffle 5 into the fixing frame 4, the second lifting plate 32 is simultaneously inserted into the edge position of the first lifting plate 30 for connection. After the insertion is completed, the adjacent first lifting plate 30 and the second lifting plate 32 are connected and fixed by the connecting bolts 33 on the top. Thereafter, when the water level rises and falls, the water surface drives the floating block 34 to rise and fall, thereby driving the frame structure composed of the first lifting plate 30 and the second lifting plate 32 to rise and fall synchronously, which produces a fencing effect and is more flexible to adjust. At the same time, it also avoids the situation where the cofferdam is too high above the water surface, which increases the wind resistance and affects the stability of the equipment. The overall structure is more flexible and stable.

[0047] When the side of the elastic plate 7 is impacted by water flow, the water flow will push the elastic plate 7 to squeeze the pressure block 25, compress the gas in the storage box 24, and sense the air pressure in the storage box 24 through the pressure sensor 38, so as to judge the direction of the water flow, control the drive motor 35 to drive the drive gear 36 to rotate, so that the drive gear 36 rolls in the arc gear ring 37, and drives the drive motor 35 and the fixed frame 4 as a whole to rotate along the arc base 2 together with the rotating ring 1, and adjust the direction of the baffle 5 so that the corner position of the fixed frame 4 is facing the direction of the water flow, thereby reducing the impact force of the water flow on the front of the baffle 5, and improving the overall stability and service life of the cofferdam.

[0048] It should be noted that: by comparing the pressure intensities of the surrounding pressure sensors 38, when the pressure value of a group of pressure sensors 38 is much greater than the values of the other three groups of pressure sensors 38, it indicates that the water flow direction is towards the side with the larger pressure sensor value. At this time, the controller disposed inside the storage box 24 controls the driving motor 35 to operate, causing a corner position of the fixing frame 4 to rotate towards the position of the pressure sensor 38 with the original larger value. Then, the driving motor 35 is used to control a certain amplitude of swing of this corner to find the direction directly facing the water flow. At this time, the pressure sensor values on the two adjacent sides of this corner can be used to assist in determining whether the corner is directly facing the water flow direction. When the pressure sensor values on the two adjacent sides of the corner are close and both are greater than the values of the other two groups of pressure sensors 38, it indicates that the corner is exactly facing the water flow direction. At this time, stop the operating state of the driving motor 35 and perform limiting.

[0049] After the position adjustment of the baffle 5 is completed, the air pressures in different lifting grooves 20 gradually stabilize. At this time, several groups of baffles 5 facing the water flow in an inclined direction are subjected to an inclined thrust. At this time, the thrust received by the elastic plate 7 on the side of the baffle 5 is greater than the thrust received by the elastic plate 7 in the water flow direction. At this time, the gas in the storage box 24 is transported to the arc-shaped pipe 26 through the first pipe 27, transported to the second pipe 28 at the other end, and then transported to the communication pipe 22 and the lifting groove 20 through the third pipe 29, increasing the air pressure in the lifting groove 20, pushing the lifting block 19 and the first positioning rod 8 to gradually move downward, and stretching the tension spring 21, so that several groups of first positioning rods 8 away from the water flow direction are inserted into the bottom of the water for additional fixing and positioning, avoiding the situation of the cofferdam tilting.

[0050] When the water flow intensity decreases, the thrust received by the elastic plate 7 decreases, and the return spring 17 rebounds, which can again push the middle part of the elastic plate 7 out to be convex, driving the pressure block 25 to move outward, reducing the air pressure intensity in the storage box 24, so that the air pressures in the arc-shaped pipe 26 and the lifting groove 20 decrease. Driven by the tension spring 21, the first positioning rod 8 moves upward to reset. At this time, the rotating ring 1 can continue to rotate and adjust under the drive of the driving motor 35. At the same time, normally, there is no need for the first positioning rod 8 to perform positioning operations. When disassembling and assembling, the removal of the baffle 5 is also more convenient and efficient.

[0051] It is worth noting that: the number of fixing frames 4 is an even number greater than or equal to four groups, so that the number of baffles 5 is an even number. A corresponding baffle 5 is set opposite each group of baffles 5. The first pipe 27 and the second pipe 28 at both ends of the arc-shaped pipe 26 are respectively located at the positions of the baffles 5 on the opposite sides for counter-directional gas transportation. After the internal construction is completed, first remove the baffle 5, and then separately remove the rotating ring 1 and the arc-shaped base 2. The entire device can be repeatedly assembled and used, and the disassembly and assembly are convenient and efficient.

[0052] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water conservancy construction cofferdam device, characterized in that, Including: A rotating ring (1), the bottom of the rotating ring (1) is rotatably connected with multiple groups of arc-shaped bases (2), and the ends of the multiple groups of arc-shaped bases (2) are connected to form a circular ring; Also including: A cofferdam mechanism (3), the cofferdam mechanism (3) includes multiple groups of fixing frames (4) fixedly installed on the upper side of the rotating ring (1) evenly, and a baffle (5) is arranged between adjacent fixing frames (4), which is used to achieve the function of sealed cofferdam by assembling and splicing the baffle (5) with the fixing frame (4); A reinforcement mechanism (6), the reinforcement mechanism (6) includes an elastic plate (7) installed on the side of the baffle (5), multiple groups of first positioning rods (8) are arranged at the bottom of the baffle (5), and a rotating member (9) for driving the relative rotation adjustment of the rotating ring (1) is arranged on the arc-shaped base (2), which is used to sense the water pressure intensity around the baffle (5) through the elastic plate (7), judge the water flow direction, drive the rotating member (9) to drive the rotating ring (1) and the baffle (5) to rotate together, so that the corner position of the fixing frame (4) is opposite to the water flow direction, reduce the frontal impact of the water flow on the baffle (5), and at the same time link the first positioning rods (8) at the bottom of the baffle (5) on the side opposite to the water flow direction to move down and insert into the bottom of the water to improve the supporting force; An adjusting mechanism (10), the adjusting mechanism (10) is installed inside the fixing frame (4) and the baffle (5), which is used to sense the height of the water level and adjust the overall height of the cofferdam to prevent water from entering the inside of the cofferdam when the water level rises.

2. The water conservancy construction cofferdam device according to claim 1, characterized in that: The cofferdam mechanism (3) also includes multiple groups of bottom plates (11) fixedly installed on the upper side of the rotating ring (1), the fixing frame (4) is bent, and plugging grooves (12) capable of being inserted into the baffle (5) in the vertical direction are opened at both sides of the fixing frame (4), and a first connecting buckle (13) capable of being fixedly connected to the side of the baffle (5) is fixedly connected to the side of the fixing frame (4).

3. The water conservancy construction cofferdam device according to claim 2, characterized in that: The reinforcement mechanism (6) also includes a top plate (14) fixedly installed between adjacent fixing frames (4), the top and bottom surfaces of the elastic plate (7) are slidably attached to the top plate (14) and the bottom plate (11) respectively, a guiding groove (15) is opened on the side of the fixing frame (4), both ends of the elastic plate (7) are fixedly connected with guiding blocks (16) slidably connected to the inner wall of the guiding groove (15) in the horizontal direction, a reset spring (17) fixedly connected to the guiding groove (15) is fixedly connected to the side of the guiding block (16), and a control member (18) for controlling the lifting adjustment of the first positioning rod (8) is arranged inside the baffle (5).

4. The water conservancy construction cofferdam device according to claim 3, characterized in that: The control member (18) includes a lifting block (19) fixedly installed at the top of the first positioning rod (8). A lifting groove (20) is formed at the bottom of the baffle (5). The lifting block (19) is slidably connected to the inner wall of the lifting groove (20) in the vertical direction. A tension spring (21) fixedly connected to the top of the lifting block (19) and fixedly connected to the top of the lifting groove (20) is provided. A communication pipe (22) communicating with the tops of multiple groups of the lifting grooves (20) is formed in the baffle (5). A pressurizing member (23) for pressurizing the communication pipe (22) on the opposite side according to the stress intensity of the elastic plate (7) is provided on the elastic plate (7).

5. The water conservancy construction cofferdam device according to claim 4, characterized in that: The pressurizing member (23) includes a storage box (24) fixedly installed on the bottom plate (11). A pressurizing block (25) fixedly connected to the side surface of the elastic plate (7) and slidably connected to the inner wall of the storage box (24) in the horizontal direction is provided. Multiple arc-shaped pipes (26) are fixedly connected inside the rotating ring (1). Two ends of each arc-shaped pipe (26) are respectively connected and communicated with a first pipe (27) and a second pipe (28). The first pipe (27) is connected and communicated with the storage box (24). A third pipe (29) capable of being connected and communicated with the communication pipe (22) and the second pipe (28) is fixedly connected in the baffle (5).

6. The water conservancy construction cofferdam device according to claim 1, characterized in that: The adjusting mechanism (10) includes a first lifting plate (30) slidably connected to the inner wall of the fixing frame (4) in the vertical direction. A device groove (31) is formed in the baffle (5). A second lifting plate (32) is slidably connected to the device groove (31) in the vertical direction. The side surface of the first lifting plate (30) can be slidably attached to the side surface of the second lifting plate (32). A connecting bolt (33) capable of connecting to the upper side of the second lifting plate (32) is provided on the upper side of the first lifting plate (30). A floating block (34) is fixedly connected to the upper end side surface of the second lifting plate (32).

7. A water conservancy construction cofferdam device according to claim 5, characterized in that: The rotating member (9) includes a driving motor (35) fixedly installed on any one of the fixing frames (4). The output end of the driving motor (35) is coaxially and fixedly connected with a driving gear (36). An arc-shaped tooth ring (37) is fixedly connected to the inner wall of the arc-shaped base (2). Multiple groups of the arc-shaped tooth rings (37) can be connected to form a circular ring. The driving gear (36) meshes with the arc-shaped tooth ring (37). A pressure sensor (38) is fixedly connected in the storage box (24). A controller electrically connected to the pressure sensor (38) and the driving motor (35) is provided in the storage box (24). The controller is used to sense the value of the pressure sensor (38) and control the rotation angle of the driving gear (36).

8. The water conservancy construction cofferdam device according to claim 3, characterized in that: A protective plate (39) slidably attached to the outer wall of the fixing frame (4) is fixedly connected to the side surface of the guiding block (16).

9. A water conservancy construction cofferdam device according to claim 1, characterized in that: A second connecting buckle (40) is fixedly connected between multiple groups of the arc-shaped bases (2). Multiple groups of second positioning rods (41) are evenly fixedly connected to the bottom of the arc-shaped base (2).

10. A method for using a cofferdam device for water conservancy construction, which is implemented based on a cofferdam device for water conservancy construction according to any one of claims 1-9, characterized in that, Including the following steps: S1. Fix the arc-shaped base (2) at the bottom of the water, then install the rotating ring (1) on the arc-shaped base (2), and install the baffle (5) between adjacent fixing frames (4), then the cofferdam device can be formed. Pump out the water inside the cofferdam, and construction operations can be carried out; S2. The elastic plate (7) senses the water pressure intensity around the baffle (5), judges the water flow direction, drives the rotating part (9) to drive the rotating ring (1) and the baffle (5) to rotate together, so that the corner position of the fixing frame (4) is opposite to the water flow direction, reducing the frontal impact of the water flow on the baffle (5). At the same time, the first positioning rod (8) at the bottom of the baffle (5) on the side opposite to the water flow direction is linked to move down and insert into the bottom of the water to increase the supporting force; S3. The adjusting mechanism (10) senses the height of the water level and adjusts the overall height of the cofferdam to prevent water from entering the inside of the cofferdam when the water level increases; S4. After the internal construction is completed, first remove the baffle (5), and then remove the rotating ring (1) and the arc-shaped base (2) separately. The whole equipment can be disassembled and reused.

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