Cofferdam structure

Abstract

The utility model belongs to the field of water conservancy and hydropower construction, and discloses a cofferdam structure which comprises a fence assembly used for fence operation space and further comprises a driving assembly installed at the top of the fence assembly and used for synchronously driving winding and unwinding from the front end and the rear end. The inner side of the driving assembly is provided with a shielding assembly for guiding rainwater in a two-side inclined manner; the shielding assembly comprises waterproof cloth, two fixing sleeves are symmetrically arranged on the two sides of the waterproof cloth, pull ropes are arranged in the fixing sleeves, sliding rails are arranged outside the fixing sleeves, the sliding rails are in an inverted V shape, and limiting grooves are formed in the sliding rails. According to the cofferdam structure, rainwater flows to the front side and the rear side of the cofferdam from the two inclined faces of the waterproof cloth through the arrangement of inclined flow guiding on the two faces, and the waterproof cloth is prevented from being crushed by accumulated water; and through the arrangement that the two ends are tensioned, the pull rope is clamped by the limiting groove, so that the waterproof cloth is tensioned from the two sides to be tightened, and the flow guide effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of water conservancy and hydropower construction, in particular, relate to a cofferdam structure. BACKGROUND

[0002] Water conservancy and hydropower engineering aims at better meeting the basic needs of the country in flood control and obtaining effective comprehensive benefits such as irrigation, water supply and power generation; the cofferdam refers to the temporary enclosure structure built for the construction of permanent water conservancy facilities in water conservancy construction, which prevents 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, which is generally mainly used in hydraulic building, except as part of the formal building, the cofferdam is generally removed after use, and the height of the cofferdam is higher than the highest water level that may occur during the construction period.

[0003] The utility model discloses a water conservancy construction cofferdam device, including cofferdam mechanism and reel, reel fixed mounting is in cofferdam mechanism one side, the reel inside rotation is installed with the rotary rod, both ends of rotary rod all are set with first installation slot, the second installation slot is set up in the inner wall of reel both sides, two first installation slot and second installation slot between fixed mounting have torsion spring, the middle part of rotary rod is installed with canvas, the one end fixed mounting of canvas extension reel is installed with pull rod, the middle part fixed mounting of pull rod is installed with pull ring, the side fixed mounting of cofferdam mechanism away from reel has the hanging rod.

[0004] The above-mentioned patent uses canvas to shield the top of the cofferdam in rainy days to prevent rainwater from entering the cofferdam, but the canvas is set in a horizontal state when laid out, and the middle position of the canvas will be concave due to the weight of rainwater and itself, thereby accumulating rainwater and easily crushing the canvas. Therefore, a new device needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cofferdam structure to solve the problems in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A cofferdam structure, including the enclosure assembly for enclosing the operation space, further including the drive assembly for synchronously driving the winding and unwinding from the front and rear ends installed on the top of the enclosure assembly, the drive assembly is installed with the shielding assembly for two-side inclined water diversion on the inner side;

[0008] The driving assembly includes a motor, a rotating shaft is installed at the output end of the motor, two rope winding discs are symmetrically arranged on the rotating shaft, a winding shaft is arranged behind the rotating shaft, two limiting plates are symmetrically arranged on the winding shaft, a synchronous wheel is installed at the end of the rotating shaft and the winding shaft away from the motor, and a synchronous belt is arranged between the two synchronous wheels.

[0009] The shielding assembly includes a waterproof cloth, two fixed sleeves are symmetrically arranged on the waterproof cloth, a pull rope is arranged in the fixed sleeve, a slide rail is arranged outside the fixed sleeve, the slide rail is in inverted V shape, and a limiting groove is formed in the slide rail.

[0010] Further, the shielding assembly includes four vertical columns, the four vertical columns are distributed in a rectangular shape, a baffle is installed between every two adjacent vertical columns, a fixed frame is arranged at the top of the vertical column, and a supporting plate is arranged on the fixed frame.

[0011] Further, the waterproof cloth is made of nylon material.

[0012] Further, the fixed sleeve and the waterproof cloth are integrally formed, and a wear-resistant layer is arranged on the surface of the fixed sleeve.

[0013] Further, the waterproof cloth is wound on the winding shaft at the rear end, and the pull rope is wound on the rope winding disc at the front end.

[0014] Further, the fixed sleeve is slidably connected with the limiting groove, and the pull rope is fixedly connected with the fixed sleeve.

[0015] Compared with the prior art, the beneficial effects are:

[0016] 1. The two inclined flow guides are arranged to make the rainwater flow from the two inclined surfaces of the waterproof cloth to the front and rear sides of the cofferdam, so that the waterproof cloth is prevented from being damaged by accumulated water;

[0017] 2. The two ends are pulled tight, the limiting groove clamps the pull rope, the waterproof cloth is pulled tight from both sides, the waterproof cloth is tightened, and the flow guiding effect is improved;

[0018] 3. The two ends are synchronously driven to wind and unwind, so that the front and rear shafts are wound and unwound respectively when the waterproof cloth is wound and unwound, and the winding and unwinding resistance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the cofferdam structure;

[0020] Figure 2 is a shielding assembly schematic view of the cofferdam structure;

[0021] Figure 3It is the drive assembly schematic view of the cofferdam structure of the utility model;

[0022] Figure 4 It is the shielding assembly schematic view of the cofferdam structure of the utility model;

[0023] Figure 5 It is the shielding assembly sectional view of the cofferdam structure of the utility model.

[0024] In the figure, 101, stand; 102, baffle; 103, fixed frame; 104, support plate; 201, motor; 202, rotating shaft; 203, rope winding disc; 204, winding shaft; 205, limiting plate; 206, synchronous wheel; 207, synchronous belt; 301, waterproof cloth; 302, fixed sleeve; 303, pull rope; 304, slide rail; 305, limiting groove. DETAILED DESCRIPTION

[0025] 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.

[0026] Please refer to Figures 1-5 A cofferdam structure, comprising a cofferdam assembly for enclosing a working space, further comprising a drive assembly installed on the top of the cofferdam assembly for synchronous driving of winding and unwinding from the front and rear ends, and a shielding assembly installed on the inner side of the drive assembly for two-side inclined flow guiding and rainwater shielding.

[0027] In the embodiment, the cofferdam assembly comprises four stand columns 101, the four stand columns 101 are distributed in a rectangular shape, baffles 102 are installed between the adjacent two stand columns 101, fixed frames 103 are arranged on the top of the stand columns 101, support plates 104 are arranged on the fixed frames 103, the stand columns 101 fix the positions of the four baffles 102, thereby enclosing the construction area and forming a cofferdam;

[0028] In the embodiment: the driving assembly comprises a motor 201, a rotating shaft 202 is installed at the output end of the motor 201, two rope collecting discs 203 are symmetrically arranged on the two sides of the rotating shaft 202, a winding shaft 204 is arranged at the rear of the rotating shaft 202, two limiting plates 205 are symmetrically arranged on the two sides of the winding shaft 204, a synchronous wheel 206 is installed at the end of the rotating shaft 202 and the winding shaft 204 away from the motor 201, a synchronous belt 207 is arranged between the two synchronous wheels 206, and the fixed frame 103 supports the motor 201 to drive the rotating shaft 202 to rotate and drive the two rope collecting discs 203 to release the rope; at the same time, the rotating shaft 202 drives the winding shaft 204 to rotate synchronously through the synchronous wheel 206 and the synchronous belt 207, and the tarpaulin 301 is wound on the part of the winding shaft 204 between the two limiting plates 205, so that the tarpaulin 301 is rolled up;

[0029] In the embodiment: the shielding assembly comprises a tarpaulin 301, two fixed sleeves 302 are symmetrically arranged on the two sides of the tarpaulin 301, a pull rope 303 is arranged in the fixed sleeve 302, a sliding rail 304 is arranged outside the fixed sleeve 302, the sliding rail 304 is in the shape of an inverted V, a limiting groove 305 is formed in the sliding rail 304, the tarpaulin 301 is made of nylon material, a wear-resistant layer is arranged on the surface of the fixed sleeve 302, the fixed sleeve 302 is integrally formed with the tarpaulin 301, the fixed sleeve 302 is slidably connected with the limiting groove 305, the pull rope 303 is fixedly connected with the fixed sleeve 302, the rear end of the tarpaulin 301 is wound on the winding shaft 204, the front end of the pull rope 303 is wound on the rope collecting disc 203, and the two sliding rails 304 clamp the pull rope 303 in the fixed sleeve 302 through the limiting groove 305 under the support of the supporting plate 104, so that the tarpaulin 301 at the two ends is pulled tight, the tarpaulin 301 is taut, and the tarpaulin 301 forms an inverted V shape, so that when it rains, the rainwater above the cofferdam can flow to the front and rear sides of the cofferdam through the two inclined surfaces of the tarpaulin 301, and water accumulation on the tarpaulin 301 is avoided.

[0030] Working principle: the stand 101 fixes the positions of the four baffles 102, thereby enclosing the construction area to form a cofferdam; at the same time, the two sliding rails 304 clamp the pull rope 303 in the fixed sleeve 302 through the limiting groove 305 under the support of the supporting plate 104, so that the tarpaulin 301 at the two ends is pulled tight, the tarpaulin 301 is taut, and the tarpaulin 301 forms an inverted V shape, so that when it rains, the rainwater above the cofferdam can flow to the front and rear sides of the cofferdam through the two inclined surfaces of the tarpaulin 301, and water accumulation on the tarpaulin 301 is avoided; in normal use, the fixed frame 103 supports the motor 201 to drive the rotating shaft 202 to rotate and drive the two rope collecting discs 203 to release the rope; at the same time, the rotating shaft 202 drives the winding shaft 204 to rotate synchronously through the synchronous wheel 206 and the synchronous belt 207, and the tarpaulin 301 is wound on the part of the winding shaft 204 between the two limiting plates 205, so that the tarpaulin 301 is rolled up.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cofferdam structure comprising a containment assembly for containing a work space, characterised in that: The drive assembly mounted on the top of the enclosure assembly is used to drive the winding and unwinding synchronously from the front and rear ends, and the shielding assembly is mounted inside the drive assembly and used to tilt and guide rainwater on both sides; The drive assembly comprises a motor (201), an output end of the motor (201) is provided with a rotating shaft (202), two rope winding discs (203) are symmetrically arranged on the rotating shaft (202), a winding shaft (204) is arranged at the rear of the rotating shaft (202), two limiting plates (205) are symmetrically arranged on the winding shaft (204), a synchronous wheel (206) is arranged at the end of the rotating shaft (202) and the winding shaft (204) away from the motor (201), and a synchronous belt (207) is arranged between the two synchronous wheels (206). The shielding assembly comprises a waterproof cloth (301), two fixed sleeves (302) are symmetrically arranged on the two sides of the waterproof cloth (301), a pull rope (303) is arranged in the fixed sleeve (302), a slide rail (304) is arranged outside the fixed sleeve (302), the slide rail (304) is in the shape of an inverted V, and a limiting groove (305) is formed in the slide rail (304).

2. The cofferdam structure of claim 1, wherein: The enclosure assembly comprises four vertical columns (101), the four vertical columns (101) are distributed in a rectangular shape, a baffle (102) is arranged between every two adjacent vertical columns (101), a fixed frame (103) is arranged at the top of the vertical column (101), and a supporting plate (104) is arranged on the fixed frame (103).

3. The cofferdam structure of claim 1, wherein: The waterproof cloth (301) is made of nylon material.

4. The cofferdam structure of claim 1, wherein: The fixed sleeve (302) is integrally formed with the waterproof cloth (301), and a wear-resistant layer is arranged on the surface of the fixed sleeve (302).

5. The cofferdam structure of claim 1, wherein: The waterproof cloth (301) is wound on the winding shaft (204) at the rear end, and the pull rope (303) is wound on the rope winding disc (203) at the front end.

6. The cofferdam structure of claim 1, wherein: The fixed sleeve (302) is in sliding connection with the limiting groove (305), and the pull rope (303) is fixedly connected with the fixed sleeve (302).

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