CN218911562U - Mud absorbing device for round cofferdam - Google Patents

Abstract

The utility model relates to the technical field of cofferdam construction structures, in particular to a circular cofferdam mud sucking device. The method comprises the steps that a track is arranged on the top of a round cofferdam; the lower ends of the two groups of supporting legs are movably connected to the track, and the connecting line of the two groups of supporting legs is intersected with the axis of the round cofferdam; the two ends of the platform are respectively fixed at the upper ends of the two groups of supporting legs; the upper end of the mud sucking device is positioned at the outer side of the round cofferdam, and the lower end of the mud sucking device extends into the bottom of the round cofferdam; the adjusting structure is arranged on the platform and used for adjusting the position of the lower end of the mud sucking device in the round cofferdam along the vertical direction and the length direction of the platform. The mud suction device is simple in structure and convenient to use, can improve the construction efficiency, reduces the investment of hoisting equipment, reduces the construction cost and has great popularization value.

Description

Mud absorbing device for round cofferdam

Technical Field

The utility model relates to the technical field of cofferdam construction structures, in particular to a circular cofferdam mud sucking device.

Background

Cofferdam construction is commonly used in the construction process of modern engineering construction, particularly bridge engineering bearing platform construction. The traditional bridge cofferdam is usually taken by adopting a crane or a crane ship to lift and move the mud sucking equipment, mud is dredged to the outside of a mud barge through a pipeline, the mud sucking equipment and a mud dismounting pipeline are required to be continuously moved in the mud sucking and taking process so as to ensure that the soil in the cofferdam is evenly and symmetrically taken, and a plurality of lifting equipment are generally required to be simultaneously input to meet the construction requirement, but the lifting equipment capacity and the limit of surrounding sites are often limited, so that the simultaneous operation of a plurality of equipment is difficult to realize, the construction efficiency is low, the investment of construction equipment is more, and the cost is higher.

In order to solve the problems, the utility model patent with the patent number of CN103397649B is named as a multifunctional platform for double-wall steel cofferdam construction and a construction method thereof, and discloses a multifunctional platform structure for a double-wall steel cofferdam, wherein a bottom compartment is arranged at the bottom of the inner side of the steel cofferdam, a plurality of rows of upright posts perpendicular to the upper surface of the steel cofferdam are arranged on the bottom compartment, a horizontally arranged track beam is arranged at the top of each row of upright posts, 1 steel rail parallel to the track beam is arranged at the top of each track beam, a movable truss car is arranged on each steel rail, a plurality of horizontally arranged cushion beams are arranged on the inner wall of the steel cofferdam, drilling platform girders are erected at the tops of the cushion beams, and simultaneously are erected at the tops of the track beams, and a plurality of vertically arranged steel casings are arranged on the drilling platform girders. According to the technical scheme, the plurality of stand columns and the track beam fixed to the top of the stand columns are arranged in the steel cofferdam, and the mud suction platform and the drilling platform can be successively erected on the track beam, so that the dismantling time of the mud suction platform is shortened, and the installation time of the drilling platform is shortened.

But this structure also has certain problem, need set up many track roof beams and distribute Liang Cai on the double-walled steel cofferdam and can cover whole double-walled steel cofferdam space, the structure that wholly builds is more complicated, and the construction degree of difficulty is great, does not make full use of double-walled steel cofferdam's overall structure in fact, and whole platform's cost is comparatively high, and this structure is mainly applicable to double-walled steel cofferdam's oval structure moreover, is not suitable for circular cofferdam to unsuitable use widely on a large scale.

Disclosure of Invention

The utility model aims to solve the defects of the background technology and provides a circular cofferdam mud sucking device.

The technical scheme of the utility model is as follows: a mud sucking device of a round cofferdam comprises,

the track is arranged at the top of the round cofferdam;

the lower ends of the two groups of supporting legs are movably connected to the track, and the connecting line of the two groups of supporting legs is intersected with the axis of the round cofferdam;

the two ends of the platform are respectively fixed at the upper ends of the two groups of supporting legs;

the upper end of the mud sucking device is positioned at the outer side of the round cofferdam, and the lower end of the mud sucking device extends into the bottom of the round cofferdam;

the adjusting structure is arranged on the platform and used for adjusting the position of the lower end of the mud sucking device in the round cofferdam along the vertical direction and the length direction of the platform.

According to the circular cofferdam mud sucking device provided by the application, the adjusting structure comprises,

the guide rail is arranged on the platform along the length direction of the platform;

the crane can be movably connected to the guide rail along the guide rail;

the upper end of the lifting rope is connected to the crane, and the lower end of the lifting rope is connected to the mud sucking equipment and realizes the vertical movement of the lower end of the mud sucking equipment through the crane.

According to the circular cofferdam suction device provided by the application, the suction equipment comprises,

a hose portion, an upper end of which is located outside the circular cofferdam;

the upper end of the straight pipe part is communicated with the lower end of the hose part, and the lower end of the straight pipe part stretches into the bottom of the circular cofferdam;

and the air compressor is arranged on the platform and is communicated with the straight pipe part.

According to the circular cofferdam mud sucking device provided by the application, the lower end of the lifting rope is connected with the outer side of the upper end of the straight pipe part.

According to the circular cofferdam mud sucking device provided by the application, a plurality of groups of mud sucking devices are arranged below the platform.

According to the round cofferdam mud sucking device provided by the application, the lower ends of the supporting legs are provided with,

the walking motor can be supported on the track along the track in a movable way;

two groups of limit gyro wheels, two groups of limit gyro wheels divide into the track both sides.

According to the circular cofferdam mud sucking device provided by the application, the track is an I-shaped track structure fixed at the top of the circular cofferdam.

According to the circular cofferdam mud sucking device that this application provided, the platform includes two sets of parallel interval arrangement's longeron and is fixed in the crossbeam at longeron both ends.

According to the circular cofferdam mud sucking device that this application provided, still including being located circular cofferdam outside and being used for carrying out the water conservancy diversion structure of water conservancy diversion to mud sucking equipment discharge silt.

According to the circular cofferdam mud absorbing device provided by the application, the diversion structure comprises a diversion trench positioned at the outer side of the circular cofferdam; the diversion trench is a trench-shaped structure which surrounds the outer side of the round cofferdam and is provided with an opening at the upper end.

The application has the advantages that: 1. according to the circular cofferdam, the circular track is arranged at the top of the circular cofferdam, the platform is supported by the supporting legs capable of walking on the track, namely, the platform can rotate around the axis of the circular cofferdam at the top of the circular cofferdam, the platform is also provided with the adjusting structure, and the position of the suction equipment in the vertical direction and the longitudinal direction of the platform can be adjusted, so that the suction equipment can conveniently move to any position in the circular cofferdam to suck mud, the circular cofferdam is simple in integral structure, large in moving range, simple in adjustment, low in manufacturing cost and construction cost and suitable for popularization and use in a large range;

2. the adjusting structure is extremely simple, the crane can move along the length direction of the platform through the combined structure of the crane and the guide rail, the crane can vertically lift or descend the mud suction equipment through the lifting rope, the whole structure is extremely simple, the operation is convenient, the materials are easy to obtain, and the manufacturing cost is low;

3. the mud suction equipment comprises a hose part, a straight pipe part and an air compressor, wherein the air compressor performs vacuum suction on the straight pipe part, so that the straight pipe part extending into the bottom of the circular cofferdam can suck mud, the hose part is convenient for adjusting the straight pipe part, mud can be conveniently discharged to the outer side of the circular cofferdam, the whole structure is simple, the use is convenient, and the mud discharge efficiency is extremely high;

4. the lifting rope is connected with the upper end of the straight pipe part through the bracket, the crane can conveniently and efficiently adjust the straight pipe part, and the straight pipe part can be directly moved and adjusted along the length direction and the vertical direction of the platform, so that the adjusting precision is higher;

5. according to the method, multiple groups of sludge sucking devices are arranged below the platform and are matched with each other to suck sludge in the round cofferdam, and the overall construction efficiency is extremely high;

6. the lower end of the landing leg is provided with the walking motor and the limiting roller, the walking motor can drive the landing leg to move on the track, the platform rotates around the axis of the vertical round cofferdam, the limiting roller limits the landing leg to deviate from the track, the safety and the stability of the structure are improved, the driving structure is simple, and the use is convenient;

7. the rail is an I-shaped steel rail structure arranged at the top of the round cofferdam, the structure is easy to obtain materials in construction sites, is low in cost and easy to obtain, greatly reduces the manufacturing cost of the whole device, and can be recycled for secondary use in other construction aspects later;

8. the platform is of a frame structure formed by two groups of longitudinal beams and two groups of transverse beams, the two groups of longitudinal beams are arranged in parallel at intervals, a reserved space is formed in the middle of the platform, and the structure such as mud sucking equipment is convenient to arrange;

9. the diversion structure is arranged on the outer side of the round cofferdam and is communicated with the upper end of the mud sucking device, so that discharged mud is led out, irregular discharge of the mud is avoided, and subsequent centralized treatment of the mud is facilitated;

10. the guide structure of this application includes the guiding gutter, and the guiding gutter is annular cell type structure, and the silt of the equipment discharge of will inhaling that can be very convenient is derived to the position of settlement, carries out the outer row of collection, reducible inhale mud and arrange thick liquid pipe and frequently tear open and connect and mud spills and leak pollution risk, greatly reduced the construction degree of difficulty.

The mud suction device is simple in structure and convenient to use, can improve the construction efficiency, reduces the investment of hoisting equipment, reduces the construction cost and has great popularization value.

Drawings

Fig. 1: front view of the suction device;

fig. 2: a top view of the suction device of the utility model;

fig. 3: the landing leg and track connection structure of the utility model is schematically shown;

wherein: 1-a round cofferdam; 2-track; 3-supporting legs; 4-a platform; 5, a guide rail; 6, a crane; 7, a lifting rope; 8-hose section; 9-a straight tube portion; 10-an air compressor; 11-a walking motor; 12-limiting idler wheels; 13-diversion trench.

Detailed Description

Embodiments of the present utility model are described in detail below, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model will now be described in further detail with reference to the drawings and to specific examples.

As shown in fig. 1-3, the present application relates to a suction device for a circular cofferdam, which is used for sucking mud and taking soil in the circular cofferdam, and after the circular cofferdam is put in place, the bottom of the circular cofferdam is uniformly sucked by the suction device for taking soil. Specifically, the mud absorbing device of this application includes, track 2, two sets of landing legs 3, platform 4, mud absorbing equipment and regulation structure, as shown in fig. 1 and 2, track 2 arranges in the top of circular cofferdam 1, two sets of landing legs 3 lower extreme mobile connection is on track 2, the line of two sets of landing legs 3 intersects with the axis of circular cofferdam 1, the upper end at two sets of landing legs 3 is fixed respectively at the both ends of platform 4, namely the platform 4 moves on circular track 2 at circular cofferdam 1 top through two sets of landing legs 3 at both ends, in fact just rotate around the vertical axis of circular cofferdam 1. The upper end of the mud sucking device is positioned at the outer side of the round cofferdam 1, the lower end of the mud sucking device stretches into the bottom of the round cofferdam 1, and the mud sucking device is used for sucking mud at the bottom of the round cofferdam 1 to the outer side of the round cofferdam 1 for centralized discharge. The adjusting structure is arranged on the platform 4 and is used for adjusting the position of the lower end of the mud sucking device in the vertical direction and the length direction of the platform 4 in the round cofferdam 1. The adjusting structure is a structure for connecting the mud sucking device and the platform 4, and the adjusting structure adjusts the position of the lower end of the mud sucking device in the circular cofferdam 1 along the length direction and the vertical direction of the platform 4, and the position is actually along the radial direction and the axial direction of the circular cofferdam 1. The platform 4 rotates through the supporting legs 3, and the position of the mud sucking device along the circumferential direction of the circular cofferdam 1 is adjusted.

The concrete construction method comprises the following steps: step one: an annular track 2 is arranged along the top when the circular cofferdam 1 is manufactured;

step two: when the round cofferdam 1 sinks and absorbs mud, the supporting leg 3 and the lifting platform 4 are integrally lifted on the top surface of the round cofferdam 1;

step three: hoisting the platform 4 and installing mud sucking equipment on the top surface of the platform;

step four: the supporting legs 3 rotate along the track 2 to hang and move the mud sucking equipment to suck mud and fetch soil, so as to finish the soil fetching in the cofferdam.

In some embodiments of the present application, the adjusting structure is optimized, specifically, as shown in fig. 1, the adjusting structure includes a guide rail 5, a crane 6 and a lifting rope 7, where the guide rail 5 is disposed on the platform 4 along the length direction of the platform 4, and is actually along the radial direction of the circular cofferdam 1, and the platform 4 is necessarily intersected with the axis of the circular cofferdam 1. The crane 6 can be movably connected to the guide rail 5 along the guide rail 5, a walking motor structure is arranged on the crane 6, the walking motor structure can be movably connected to the platform 4 along the platform 4, and a lifting rope 7 telescopic structure similar to a winch structure is also arranged on the crane 6. The upper end of the lifting rope 7 is connected with the crane 6, and the lower end of the lifting rope is connected with the mud sucking device and realizes the vertical movement of the lower end of the mud sucking device through the crane 6.

When the position of the lower end of the mud sucking device is required to be adjusted, the landing leg 3 drives the platform 4 to rotate around the axis of the circular cofferdam 1, so that the lower end of the mud sucking device is adjusted along the circumferential direction of the circular cofferdam 1; the crane 6 is driven to move along the guide rail 5, so that the mud sucking equipment can move along the radial direction of the circular cofferdam 1; the adjustment of the mud sucking device along the axial direction (i.e. the vertical direction) of the circular cofferdam 1 is realized by the telescopic lifting rope 7 of the crane 6.

In a further embodiment of the present application, the above-mentioned sludge suction apparatus is optimized in this embodiment, specifically, as shown in fig. 1, the sludge suction apparatus of this embodiment includes a hose portion 8, a straight tube portion 9, and an air compressor 10, the upper end of the hose portion 8 is located outside the circular cofferdam 1, the upper end of the straight tube portion 9 is communicated with the lower end of the hose portion 8, the lower end extends into the bottom of the circular cofferdam 1, and the air compressor 10 is disposed on the platform 4 and is communicated with the straight tube portion 9.

The hose portion 8 can be stretched and adjusted, and when the straight pipe portion 9 is adjusted, the hose portion can stretch and change, adapt to the position change of the straight pipe portion 9, ensure that the upper end of the hose portion 8 is always positioned on the outer side of the circular cofferdam 1, and ensure that sludge is discharged. The straight pipe portion 9 is a straight pipe structure composed of a plurality of hard pipes, the number of pipe sections can be arranged according to the required length, and the lower end of the straight pipe portion 9 is inserted into bottom sludge. The air compressor 10 is a vacuum-pumping device, which communicates with the straight pipe portion 9, and pumps the inside of the straight pipe portion 9 to enable the straight pipe portion 9 to pump the sludge.

In order to facilitate the position adjustment of the straight tube portion 9, the lower end of the hoist rope 7 of the present embodiment is connected to the outside of the upper end of the straight tube portion 9.

In this embodiment, a plurality of groups of mud sucking devices are arranged below the platform 4, as shown in fig. 1 and 2, and four groups of mud sucking devices are arranged at intervals along the length direction of the guide rail 5. During actual construction, the circular cofferdam 1 can be divided into a plurality of annular areas, each group of mud sucking equipment corresponds to one group of annular areas, then the mud sucking equipment sucks mud and takes soil in the set annular areas through the rotating platform 4, and the plurality of groups of mud sucking equipment cooperatively work to uniformly suck mud and take soil in the circular cofferdam 1.

In other embodiments of the present application, the structure of the supporting leg 3 is optimized in this embodiment, specifically, as shown in fig. 3, a walking motor 11 and two sets of limiting rollers 12 are disposed at the lower end of the supporting leg 3, the walking motor 11 can be supported on the track 2 along the track 2, and the two sets of limiting rollers 12 are disposed on two sides of the track 2.

The track 2 of the embodiment is an I-shaped track structure fixed at the top of the circular cofferdam 1, and two groups of limiting rollers 12 are respectively arranged at two sides of the track 2 to limit the movement of the supporting legs 3 in the non-circumferential direction. The walking motor 11 drives the supporting leg 3 to move along the track 2, so that the rotation adjustment of the platform 4 is realized. An automatic control device can be arranged, and the automatic control device is used for controlling the walking motors 11 at the lower ends of the two groups of supporting legs 3 to automatically regulate the rotation of the platform 4.

In order to facilitate the arrangement of the equipment structure on the platform 4, the platform 4 of the present embodiment includes two sets of longitudinal beams arranged in parallel at intervals and transverse beams fixed to both ends of the longitudinal beams. The two groups of longitudinal beams are arranged in parallel at intervals, which is equivalent to the arrangement of empty space in the middle of the platform 4, and the structure of the air compressor 10, the crane 6, the guide rail 5 and the like is convenient to arrange.

In a preferred embodiment of the present application, a flow guiding structure for guiding the sludge discharged from the sludge sucking device is arranged at the outer side of the circular cofferdam 1. As shown in fig. 1 to 2, the diversion structure comprises diversion trenches 13 positioned on the outer side of the circular cofferdam 1, and the diversion trenches 13 are groove-shaped structures which encircle the outer side of the circular cofferdam 1 and are open at the upper end.

The upper end of the mud sucking device is actually that the upper end of the hose part 8 is positioned at the upper end of the diversion trench 13, the mud sucked and discharged by the mud sucking device is directly discharged into the diversion trench 13 through the hose part 8, the diversion trench 13 is used for collecting and discharging the mud in a concentrated manner, the frequent disassembly and leakage pollution risks of mud are reduced, and the construction difficulty is greatly reduced.

The concrete construction process is as follows: step one: the circular cofferdam 1 is manufactured by arranging an annular track 2 and a mud diversion trench 13 along the top;

step two: after the round cofferdam 1 is sunk in place, the supporting legs 3 are arranged on the top surface of the round cofferdam 1;

step three: hoisting a platform 4, an air compressor 10, a straight pipe part 9 and a hose part 8 on the top surface of the supporting leg 3, wherein the upper end of the hose part 8 extends to the outer side of the round cofferdam 1 and is suspended above a diversion trench 13;

step four: the landing leg 3 rotates along the axial position of track 2 rotation regulation straight tube portion 9 lower extreme, crane 6 moves along guide rail 5 and adjusts the radial position of straight tube portion 9 lower extreme, crane 6 drives the telescopic axial position of adjusting straight tube portion 9 of lifting rope 7, until straight tube portion 9 is in the regional soil pick-up that absorbs mud that is in the settlement, after the soil pick-up that absorbs mud of accomplishing a construction point, the rotation platform 4 drives straight tube portion 9 and removes to next construction point, go on in proper order, until all regions in circular cofferdam 1 are inside all accomplish the soil pick-up operation that absorbs mud, hose portion 8 discharges silt to guiding gutter 1 in, guiding gutter 13 carries out concentrated emission processing with the silt.

As shown in fig. 2, the circumferential direction of the circular cofferdam 1 refers to the circumferential direction of the circular cofferdam 1, the radial direction refers to the radial direction of the circular cofferdam 1, and the axial direction refers to the axial direction of the circular cofferdam 1.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A circular cofferdam suction dredge device which is characterized in that: comprising the steps of (a) a step of,

a track (2), the track (2) being arranged on top of the circular cofferdam (1);

the lower ends of the two groups of supporting legs (3) are movably connected to the track (2), and the connecting lines of the two groups of supporting legs (3) are intersected with the axis of the round cofferdam (1);

the two ends of the platform (4) are respectively fixed at the upper ends of the two groups of supporting legs (3);

the upper end of the mud sucking device is positioned at the outer side of the round cofferdam (1), and the lower end of the mud sucking device extends into the bottom of the round cofferdam (1);

the adjusting structure is arranged on the platform (4) and used for adjusting the position of the lower end of the mud suction device in the round cofferdam (1) along the vertical direction and the length direction of the platform (4).

2. A circular cofferdam suction apparatus as set forth in claim 1, wherein: the adjustment structure may comprise a plurality of adjustment structures,

the guide rail (5) is arranged on the platform (4) along the length direction of the platform (4);

the crane (6) can be movably connected to the guide rail (5) along the guide rail (5);

the lifting rope (7), lifting rope (7) upper end is connected in crane (6), and the lower extreme is connected in suction dredge and realizes the vertical removal of suction dredge lower extreme through crane (6).

3. A circular cofferdam suction apparatus as set forth in claim 2, wherein: the mud-sucking device comprises a main body and a suction pipe,

a hose portion (8), the upper end of the hose portion (8) being located outside the circular cofferdam (1);

the upper end of the straight pipe part (9) is communicated with the lower end of the hose part (8), and the lower end of the straight pipe part (9) stretches into the bottom of the circular cofferdam (1);

and the air compressor (10) is arranged on the platform (4) and is communicated with the straight pipe part (9).

4. A circular cofferdam suction apparatus as claimed in claim 3, wherein: the lower end of the lifting rope (7) is connected with the outer side of the upper end of the straight pipe part (9).

5. A circular cofferdam suction apparatus as set forth in claim 1, wherein: a plurality of groups of mud sucking devices are arranged below the platform (4).

6. A circular cofferdam suction apparatus as set forth in claim 1, wherein: the lower end of the supporting leg (3) is provided with a plurality of supporting legs,

the walking motor (11) can move along the track (2) and is supported on the track (2);

two groups of limiting rollers (12), wherein the two groups of limiting rollers (12) are respectively arranged at two sides of the track (2).

7. A circular cofferdam suction apparatus as set forth in claim 1 or 6, wherein: the rail (2) is an I-shaped rail structure fixed at the top of the round cofferdam (1).

8. A circular cofferdam suction apparatus as set forth in claim 1, wherein: the platform (4) comprises two groups of longitudinal beams which are arranged in parallel at intervals and transverse beams which are fixed at two ends of the longitudinal beams.

9. A circular cofferdam suction apparatus as set forth in claim 1, wherein: the device also comprises a flow guiding structure which is positioned at the outer side of the round cofferdam (1) and used for guiding the sludge discharged by the sludge sucking equipment.

10. A circular cofferdam suction apparatus as set forth in claim 9, wherein: the diversion structure comprises diversion trenches (13) positioned at the outer sides of the round cofferdam (1); the diversion trench (13) is a trench-shaped structure which surrounds the outer side of the round cofferdam (1) and is provided with an opening at the upper end.

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