Integral movable cofferdam

Abstract

The utility model discloses an integral type movable cofferdam, which relates to the technical field of movable cofferdams and comprises a body, a bearing plate is arranged in the body, a ballast tank is arranged on the body and positioned on the lower side of the bearing plate, a drain pipe is arranged at the bottom of the ballast tank, and a lifting cabin is arranged on the body and positioned on the upper side of the bearing plate. At least one hydraulic cylinder is arranged on the pressure-bearing plate, a height compensation block is arranged at the output end of the hydraulic cylinder in the lifting cabin, the weight of the height compensation block is smaller than that of the pressure-bearing cabin when the pressure-bearing cabin is filled with water, and a water injection pipe is arranged on the pressure-bearing plate and penetrates through the height compensation block; the hydraulic cylinder drives the height compensation block to ascend and descend, a mechanical mode replaces an unpowered mode, ascending and descending of the height of the whole cofferdam are achieved, and the water blocking efficiency of the cofferdam at water levels of different heights is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to movable cofferdam technical field especially relates to a whole movable cofferdam. BACKGROUND

[0002] Cofferdam is a temporary enclosure structure built for the construction of permanent water conservancy facilities in water conservancy construction. Its role is to prevent water and soil from entering the construction site of the building, so as to drain water in the cofferdam, excavate foundation pit and build building. In addition, it can also be used for emergency use such as flood control and rescue.

[0003] The utility model discloses a kind of flood prevention cofferdam structures of CN 219118203 U, and the announcement day is June 2, 2023, and the utility model discloses a kind of flood prevention cofferdam structures, including counterweight plate, counterweight plate one side is welded with cofferdam plate, cofferdam plate middle part is set with through slot, counterweight plate other side upper end is welded with storage box, storage box inner chamber is placed with counterweight sandbag, counterweight plate upper end is movably installed with fixed plate, fixed plate one side is welded with connecting plate;

[0004] The utility model discloses a kind of flood prevention cofferdam structures of CN 219118203 U, and the announcement day is June 2, 2023, and the utility model discloses a kind of flood prevention cofferdam structures, including counterweight plate, counterweight plate one side is welded with cofferdam plate, cofferdam plate middle part is set with through slot, counterweight plate other side upper end is welded with storage box, storage box inner chamber is placed with counterweight sandbag, counterweight plate upper end is movably installed with fixed plate, fixed plate one side is welded with connecting plate;

[0005] The utility model discloses a kind of flood prevention cofferdam structures of CN 219118203 U, and the announcement day is June 2, 2023, and the utility model discloses a kind of flood prevention cofferdam structures, including counterweight plate, counterweight plate one side is welded with cofferdam plate, cofferdam plate middle part is set with through slot, counterweight plate other side upper end is welded with storage box, storage box inner chamber is placed with counterweight sandbag, counterweight plate upper end is movably installed with fixed plate, fixed plate one side is welded with connecting plate;

[0006] The utility model discloses a kind of flood prevention cofferdam structures of CN 221798297 U, and the announcement day is October 1, 2024, and the utility model discloses a kind of flood prevention cofferdam structures, including fixed cofferdam and lifting cofferdam, lifting cofferdam is movably connected on fixed cofferdam;Fixed cofferdam is composed of sliding groove, light rod, mounting plate, sleeve rod, counterweight block and resistance screw;Lifting cofferdam is composed of connecting rod, fixed plate and floating bag;Connecting rod is set to two, connecting rod is symmetrically set on lifting cofferdam, and connecting rod is set to U-shaped structure, and its upper and the top of lifting cofferdam are connected;

[0007] The utility model discloses a water level rises, and the buoyancy that the floating bag bears increases, makes the lifting cofferdam rise, thereby effectively blocks higher water level, on the contrary, when water level drops, the gravity of counterweight mass makes the lifting cofferdam be fixed to the purpose of blocking water level. The advantage that such design is, staff does not need frequently adjusting the height of cofferdam, and the cofferdam can be lifted by buoyancy, thereby can be applicable to different scene's flood prevention work, the patent has solved the last problem simultaneously and produced new problem: the lifting cofferdam in the patent mainly relies on floating bag, and when water level rises, floating bag floats up and drives lifting cofferdam to rise, but this lifting mode is mainly unpowered lifting, and mainly depends on the buoyancy of water to floating bag, but there are many uncontrollable factors in using floating bag, when floating bag is pressed down by the stone in water and is limited to float up, the floating bag can not drive lifting cofferdam to rise, and the lifting cofferdam loses the water blocking effect at this time.

[0008] Therefore, an integrated movable cofferdam is urgently needed to replace the unpowered lifting by mechanical means, realize the lifting of the whole cofferdam height, and improve the water blocking efficiency of the cofferdam under different water levels. Utility model content

[0009] In view of the above technical problems, the utility model provides an integrated movable cofferdam to solve the problem that the existing cofferdam mainly relies on the unpowered lifting mode, but the unpowered lifting mode has many uncontrollable factors, floating bag is pressed down by the stone in water and is limited to float up in the use process, the floating bag can not drive lifting cofferdam to rise at this time, and the lifting cofferdam loses the water blocking effect at this time.

[0010] The above technical purpose of the utility model is realized by the following technical scheme.

[0011] An integrated movable cofferdam, comprising a body, a pressure bearing plate is arranged in the body, a ballast tank is arranged on the lower side of the body at the pressure bearing plate, a drain pipe is arranged at the bottom of the ballast tank, a lifting tank is arranged on the upper side of the body at the pressure bearing plate, at least one hydraulic cylinder is arranged on the pressure bearing plate, a height compensation block is arranged in the lifting tank at the output end of the hydraulic cylinder, the weight of the height compensation block is less than the weight of the pressure bearing tank when filled with water, a water filling pipe is arranged on the pressure bearing plate, and the water filling pipe penetrates the height compensation block.

[0012] Further, a plurality of water falling holes are formed in the pressure bearing plate, and an overflow hole is arranged at the top of the ballast tank.

[0013] Further, the cross section of the ballast tank is in isosceles trapezoidal structure.

[0014] Further, first and second counterweight blocks are arranged on both sides of the drain pipe at the bottom of the body, and the weight of the first counterweight block is greater than that of the second counterweight block.

[0015] Further, one side of the first counterweight is vertically provided with a blocking rod.

[0016] Further, the bottom of the first counterweight is provided with a plurality of friction columns.

[0017] Further, the inner wall of the lifting cabin is provided with a limiting plate.

[0018] Further, the body is provided with an access door at the position of the hydraulic cylinder, and the access door is provided with a door cover.

[0019] Further, the body is symmetrically provided with lifting lugs near the two sides of the height compensation block.

[0020] Therefore, the utility model has the beneficial technical effects that:

[0021] The hydraulic cylinder provides power for the lifting of the height compensation block, and the mechanical lifting mode channels the power-free lifting, avoids the interference of external factors during the lifting of the height compensation block, and makes the cofferdam applicable to water blocking under different heights, and the ballast cabin improves the stability of the cofferdam. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is Figure 1 is a schematic diagram of another angle;

[0024] Figure 3 is Figure 1 is a schematic diagram of the internal structure of the utility model.

[0025] Reference signs: 1, body; 2, pressure bearing plate; 3, ballast cabin; 4, lifting cabin; 5, hydraulic cylinder; 6, height compensation block; 7, water injection pipe; 8, water discharge pipe; 9, water outlet; 10, overflow hole; 11, first counterweight; 12, second counterweight; 13, blocking rod; 14, friction column; 15, limiting plate; 16, lifting lug; 17, door cover; 18, pipe penetrating hole. DETAILED DESCRIPTION

[0026] The utility model will be described clearly and completely in combination with examples.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model embodiments are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0028] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "arranged", "connected" and the like should be understood broadly. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or connected through an intermediate medium, or connected internally between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] Referring to the accompanying drawings Figures 1-3 , it is shown that a kind of integrated movable cofferdam, including body 1, body 1 is the cavity structure of one-piece casting, horizontal pressure plate 2 is arranged in it, pressure tank 3 is provided at the lower side of pressure plate 2, the bottom of pressure tank 3 is provided with drain pipe 8, water is injected into pressure tank 3 in use, the stability of the entire cofferdam is improved by the weight of pressure tank 3, and the cross section of the entire pressure tank 3 is isosceles trapezoidal structure, which increases the contact area of cofferdam with ground, reduces the risk of overturning under water impact;

[0030] Body 1 is provided with lifting cabin 4 at the upper side of pressure plate 2, lifting cabin 4 is rectangular structure, and two hydraulic cylinders 5 are installed on pressure plate 2, and the hydraulic cylinders 5 are connected to the hydraulic station, wherein height compensation block 6 is provided at the output end of hydraulic cylinder 5 in lifting cabin 4, and in use, height compensation block 6 is driven by hydraulic cylinder 5 to realize lifting, so that the cofferdam is used when the height needs to be increased, so as to provide power for height compensation block 6 to lift by hydraulic cylinder 5, instead of the original unpowered lifting relying on buoyancy, avoiding interference of external factors on height compensation block 6 in lifting process, so that lifting is more secure;

[0031] Further, water injection pipe 7 is vertically provided on pressure plate 2, water injection pipe 7 is communicated with pressure tank 3 and penetrates through the entire height compensation block 6, and water is injected into pressure tank 3 through water injection pipe 7 in use, so that the weight of the entire pressure tank 3 is greater than the weight of height compensation block 6, so that the center of gravity of the entire cofferdam is lowered and more stable;

[0032] Further, a plurality of water holes 9 are formed on pressure plate 2, and when water flows to pressure plate 2 along the gap between height compensation block 6 and lifting cabin 4 in use, in order to prevent water from gathering on pressure plate 2 and causing damage to hydraulic cylinder 5, water is discharged into pressure tank 3 through water hole 9 in time, and in order to prevent the water level in pressure tank 3 from being too high and flowing back to pressure plate 2, overflow hole 10 is formed on the top of pressure tank 3, which can keep the water level in pressure tank 3 stable, and when there is excess water, it will be discharged from overflow hole 10;

[0033] Further, the body 1 is located on the side wall of the hydraulic cylinder 5 position corresponding to the opening of the access door, the access door is provided with a door cover 17, and the door cover 17 is provided with a pipe hole 18, when the hydraulic cylinder 5 is installed on the pressure plate 2, the hydraulic cylinder 5 can be connected to the hydraulic cylinder 5 through the pipe hole 18 from the access door operation;

[0034] Further, in order to further improve the stability of the whole cofferdam, therefore the bottom of the body 1 is located on both sides of the drain pipe 8 respectively provided with a first counterweight 11 and a second counterweight 12, and the weight of the first counterweight 11 is greater than that of the second counterweight 12, and a plurality of blocking rods 13 are vertically arranged on the first counterweight 11, when the water flow impact on the cofferdam is large, sandbags can be installed on the first counterweight 11, and the sandbags are limited by the blocking rods 13;

[0035] In addition, a plurality of conical friction columns 14 are arranged on the bottom of the first counterweight 11, when the water flow acts on the cofferdam, a thrust is generated on the cofferdam, at this time, the friction column 14 increases the friction with the ground to offset the thrust of the water flow, so that the cofferdam can play a more stable water blocking role and avoid displacement;

[0036] Further, in order to facilitate the disassembly of the hydraulic cylinder 5, the body 1 is provided with a limiting plate 15 on the inner wall of the lifting cabin 4, when the height compensation block 6 is recovered into the lifting cabin 4, the height compensation block 6 is supported by the limiting plate 15, so that the hydraulic cylinder 5 can be taken out from the access door;

[0037] Finally, in order to facilitate the hoisting of the whole cofferdam, the body 1 is symmetrically provided with lifting lugs 16 on both sides close to the height compensation block 6.

[0038] In use, first, the whole cofferdam is lifted to the water blocking position by the lifting lugs 16 on both sides of the body 1, so that the side with the door cover 17 faces away from the water flow direction, then the hydraulic cylinder 5 is connected with the hydraulic station through the pipe hole 18, then water is injected into the ballast tank 3 through the water injection pipe 7, so that the center of gravity of the whole cofferdam is lowered, when the height of the cofferdam needs to be raised, the hydraulic cylinder 5 drives the height compensation block 6 to realize mechanical lifting.

[0039] The above is only the preferred specific implementation of the present application, and is not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A monolithic mobile cofferdam, characterized by: The utility model relates to a pressure-bearing plate (2) is arranged in the inside of the body (1), the bottom of the pressure-bearing plate (2) is equipped with the ballast cabin (3), the bottom of the ballast cabin (3) is equipped with the drain pipe (8), the top of the pressure-bearing plate (2) is equipped with the lifting cabin (4), the pressure-bearing plate (2) is equipped with at least one hydraulic cylinder (5), the output end of the hydraulic cylinder (5) is equipped with the height compensation block (6) in the lifting cabin (4), the weight of the height compensation block (6) is less than the weight of the pressure-bearing cabin when filling water, the pressure-bearing plate (2) is equipped with the water injection pipe (7), the water injection pipe (7) penetrates the height compensation block (6).

2. An integrated movable cofferdam according to claim 1, characterized in that: The pressure-bearing plate (2) is equipped with a plurality of water falling holes (9), and the top of the ballast cabin (3) is equipped with an overflow hole (10).

3. An integrated movable cofferdam according to claim 1, characterized in that: The cross section of the ballast cabin (3) is isosceles trapezoidal structure.

4. An integrated movable cofferdam according to claim 1, wherein: The bottom of the body (1) is equipped with a first counterweight block (11) and a second counterweight block (12) on both sides of the drain pipe (8), and the weight of the first counterweight block (11) is greater than that of the second counterweight block (12).

5. An integrated movable cofferdam according to claim 4, wherein: The first counterweight block (11) is vertically equipped with a blocking rod (13) on one side.

6. An integrated movable cofferdam according to claim 4, wherein: The bottom of the first counterweight block (11) is equipped with a plurality of friction columns (14).

7. An integrated movable cofferdam according to claim 1, wherein: The inner wall of the lifting cabin (4) is equipped with a limiting plate (15).

8. An integrated movable cofferdam according to claim 1, characterized in that: The body (1) is equipped with an access door at the position of the hydraulic cylinder (5), and the access door is equipped with a door cover (17).

9. An integrated movable cofferdam according to claim 1, wherein: The body (1) is symmetrically equipped with an ear (16) on both sides close to the height compensation block (6).

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