CN111809637B

CN111809637B - Cofferdam structure convenient for pumping and draining

Info

Publication number: CN111809637B
Application number: CN202010562189.9A
Authority: CN
Inventors: 陈利娟; 秦湖婷; 江莹
Original assignee: Shanghai River Construction Co ltd
Current assignee: Shanghai River Construction Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-12-21
Anticipated expiration: 2040-06-18
Also published as: CN111809637A

Abstract

The application relates to a cofferdam structure convenient for pumping and draining water, which comprises a cofferdam body, wherein the cofferdam body comprises a plurality of base rings, the cofferdam body is formed by sequentially abutting the base rings from top to bottom, the cofferdam structure also comprises a plurality of water pumping pipelines arranged on the inner side of the cofferdam body, and the bottom ends of the water pumping pipelines extend to the bottom of the cofferdam body; the top of cofferdam body is provided with a plurality of drainage pipe, and is a plurality of drainage pipe and a plurality of pipeline one-to-one that draws water, drainage pipe's one end extends to the outside of cofferdam body, be provided with the suction pump between drainage pipe and the pipeline that draws water, after the cofferdam installation is accomplished, open a plurality of suction pumps simultaneously, under the effect of suction pump, in the water in the cofferdam is sucked a plurality of suction pipes to discharge to the cofferdam outside by drainage pipe, make the drainage process in the cofferdam simple and convenient. This application has the effect of being convenient for take the water in the cofferdam out the emission.

Description

Cofferdam structure convenient for pumping and draining

Technical Field

The application relates to the field of cofferdam structures, in particular to a cofferdam structure convenient for pumping and draining.

Background

The cofferdam is a temporary maintenance structure which is built for building permanent water conservancy facilities in the water conservancy project construction. The cofferdam has the functions of preventing water and soil from entering the building position of a building so as to drain water in the cofferdam, excavate a foundation pit, build the building and the like.

After the cofferdam is built, water in the cofferdam needs to be discharged, at present, in the related technology, most of the water in the cofferdam is discharged after being pumped out by a water suction pump, but because the water depth in the cofferdam is larger, the length of a water suction pipe connected to the water suction pump is limited, the water suction pipe is not easy to extend into the bottom of the cofferdam, and the water at the bottom of the cofferdam is difficult to clean.

In view of the above-described related art, the inventors considered that there was a drawback that it was not easy to discharge the water in the cofferdam.

Disclosure of Invention

In order to facilitate taking out the drainage with the water in the cofferdam, this application provides a cofferdam structure convenient to drainage.

The application provides a cofferdam structure convenient to drainage adopts following technical scheme:

a cofferdam structure convenient for pumping and draining water comprises a cofferdam body, wherein the cofferdam body comprises a plurality of base rings, the cofferdam body is formed by sequentially abutting the base rings from top to bottom, the cofferdam structure also comprises a plurality of water pumping pipelines arranged at the inner side of the cofferdam body, and the bottom ends of the water pumping pipelines extend to the bottom of the cofferdam body;

the top of cofferdam body is provided with a plurality of drainage pipe, and is a plurality of drainage pipe and a plurality of pipeline one-to-one that draws water, drainage pipe's one end extends to the outside of cofferdam body, drainage pipe and the pipeline that draws water between be provided with the suction pump.

By adopting the technical scheme, the cofferdam body is formed by splicing a plurality of base rings, so that the cofferdam body is convenient to transport and install; and continuously superposing the base rings from the top ends of the base rings, welding and connecting the joints of the two base rings, and repeating the steps to finish the installation work of the cofferdam body. Simultaneously, the water pumping pipeline, the drainage pipeline and the water pumping pump are installed on the cofferdam body, after the installation of the cofferdam is completed, the plurality of water pumping pumps are simultaneously started, water in the cofferdam is sucked into the plurality of water pumping pipelines under the action of the water pumping pumps and is discharged to the outer side of the cofferdam through the drainage pipeline, and the water pumping and drainage process in the cofferdam is simple and convenient.

Preferably, the water pumping pipeline comprises a plurality of branch pipelines, the branch pipelines correspond to the base rings one by one, and the branch pipelines on two adjacent base rings are connected with each other;

a base is arranged between the branch pipeline and the inner side wall of the base ring, and a connecting mechanism which enables the base and the base ring to be detachably connected is arranged between the base and the base ring.

Through adopting above-mentioned technical scheme, when making the base ring splice into the cofferdam body, a plurality of lateral conduit also interconnect thereupon become the pipeline that draws water, and cut apart into a plurality of lateral conduits with the longer pipeline that draws water of length, both be convenient for to the preparation of the pipeline that draws water, be convenient for again transport the pipeline that draws water, reduce the cost of manufacture of the pipeline that draws water.

Preferably, two adjacent branch pipes are connected by a flange.

By adopting the technical scheme, the method is convenient to install and disassemble.

Preferably, the connecting mechanism comprises an upper clamping ring sleeved on the inner side wall of the base ring, a lower clamping ring fixedly arranged on the inner side wall of the base ring and positioned below the upper clamping ring, an upper clamping block arranged on the base and positioned above the upper clamping ring, and a lower clamping block fixedly arranged on the base and positioned below the lower clamping ring;

the upper clamping block can slide on the base along the axial direction of the base ring, a driving assembly for driving the upper clamping block to slide is further arranged on the base, and the upper clamping block downwards extrudes the upper clamping ring under the action of the driving assembly;

the lower clamping block is upwards abutted to the lower clamping ring.

Through adopting above-mentioned technical scheme, the base is connected with the base ring through last fixture block and lower fixture block to last snap ring and the clamp force of snap ring down to can connect the optional position on the base ring inside wall, be convenient for make the lateral conduit on two adjacent base rings align. And, when using drive assembly to drive the fixture block rebound, go up fixture block and last snap ring separation, the base loses can unpack apart with the base ring after the clamp force, otherwise, makes go up fixture block rebound to with last snap ring butt, can with the pedestal mounting base ring on, the installation with dismantle the process simple and convenient to be convenient for adjust the position of base on the base ring.

Preferably, the top surface of the upper clamping ring is provided with an upper clamping groove which is formed by sinking downwards, the bottom surface of the upper clamping block is fixedly provided with an upper bulge matched with the upper clamping groove, and the upper bulge is clamped in the upper clamping groove;

the bottom surface of the lower clamping ring is provided with a lower clamping groove which is formed by upward sinking, the top surface of the lower clamping block is fixedly provided with a lower bulge matched with the lower clamping groove, and the lower bulge is clamped in the lower clamping groove.

Through adopting above-mentioned technical scheme, go up the protruding cooperation with last draw-in groove, lower protruding cooperation with draw-in groove down makes and goes up fixture block and fixture block down and all can only follow its axis shift position on last snap ring, can't follow the radial movement of last snap ring and lower snap ring promptly, improves the joint strength between base and the base ring inside wall.

Preferably, drive assembly is including setting firmly the mounting panel on the base, the mounting panel is located the top of last fixture block, threaded connection has the screw rod on the mounting panel, the bottom of screw rod is rotated and is connected on last fixture block, the one end that the fixture block was kept away from to the screw rod has set firmly the hand wheel.

By adopting the technical scheme, the hand wheel is used for rotating the screw rod, and the screw rod moves on the mounting plate along the axial direction of the screw rod, so that the upper clamping block is driven to move together with the screw rod, and the function of driving the upper clamping block to move is realized.

Preferably, one side of the screw rod is provided with a guide rod, a penetrating fixing plate of the guide rod is connected with the guide rod in a sliding manner, and the bottom end of the guide rod is fixedly connected with the upper clamping block.

By adopting the technical scheme, the guide rod plays a role in guiding the movement of the upper clamping block, so that when the screw rod rotates, the upper clamping block cannot rotate along with the screw rod due to friction force, and the stability of the operation of the connecting mechanism is ensured.

Preferably, the bottom end of the water pumping pipeline extends towards one side of the axis of the cofferdam body in a bending way.

Through adopting above-mentioned technical scheme, make the water in the cofferdam body flow to pumping pipe one side from the middle part of cofferdam body earlier to water flow direction when will drawing water changes from vertical to the level, thereby reduces the disturbance effect to bottom silt when drawing water, reduces the phenomenon that silt got into the pipeline that draws water.

Preferably, a filter screen is arranged at an opening at the bottom end of the water pumping pipeline.

Through adopting above-mentioned technical scheme, during debris or silt etc. that the filter screen can reduce aquatic got into the pipeline that draws water, reduced the phenomenon that the pipeline that draws water appears blockking up.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the water in the cofferdam is conveniently pumped and discharged under the action of the plurality of water pumping pipelines and the plurality of water pumping pumps, the water pumping and discharging efficiency is high, and the water pumping pipelines are fixed in the water pumping process, so that the stability of the water pumping pipeline is high in the water pumping process;

2. the water pumping pipeline is formed by mutually splicing a plurality of branch pipelines, so that the water pumping pipeline is convenient to process and manufacture and transport, and the production cost of the water pumping pipeline is reduced;

3. the lateral conduit passes through the base and coupling mechanism is connected with the base ring inside wall, makes the lateral conduit joinable on the optional position of base ring inside wall under coupling mechanism's effect, is convenient for carry out position control according to the lateral conduit on the base ring of below to be favorable to two lateral conduits to align to connect.

Drawings

Fig. 1 is a schematic structural view of a cofferdam.

Figure 2 is a schematic diagram showing the explosive structure of the base ring splice.

Fig. 3 is a sectional view showing a positional relationship of the water pumping pipe.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is an enlarged schematic view of a portion B in fig. 3.

Fig. 6 is an enlarged schematic view of a portion C in fig. 3.

Fig. 7 is a partial view showing the structure of the drive assembly.

Description of reference numerals: 1. a base ring; 2. a water discharge pipeline; 3. a water pump; 4. a filter screen; 5. a branch pipe; 6. a base; 7. a connecting mechanism; 71. a snap ring is arranged; 711. an upper clamping groove; 72. a lower snap ring; 721. a lower clamping groove; 73. an upper clamping block; 731. an upper bulge; 74. a drive assembly; 741. mounting a plate; 742. a screw; 743. a hand wheel; 744. a guide bar; 75. a lower clamping block; 751. and a lower bulge.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses cofferdam structure convenient to drainage. Referring to fig. 1 and 2, the cofferdam structure includes the cofferdam body, and the cofferdam body is the hollow sleeve form setting in inside, and the cofferdam body comprises a plurality of base rings 1, and a plurality of base rings 1 arrange and splice each other along the direction of height and are the cofferdam body.

Referring to fig. 1, this internal a plurality of pipelines that draw water that are provided with of cofferdam, the pipeline that draws water sets up along the axial of cofferdam body, and the bottom that draws water the pipeline is located the bottom top of cofferdam body, and a plurality of pipelines that draw water are evenly just interval distribution along the circumference of cofferdam body.

Referring to fig. 1 and 2, the top of cofferdam body has still set firmly a plurality of drainage pipe 2, a plurality of drainage pipe 2 and a plurality of pipeline one-to-one that draws water, drainage pipe 2 along the radial setting of cofferdam body, drainage pipe 2 keeps away from the one end that draws water the pipeline and extends to the outside of cofferdam body.

Referring to fig. 2, a water suction pump 3 is arranged between the drainage pipeline 2 and the corresponding water suction pipeline, and the drainage pipeline 2 is communicated with the water suction pipeline through the water suction pump 3. Referring to fig. 3 and 4, the bottom end of the water pumping pipeline is bent and extended towards one side of the axis of the base ring 1, and a filter screen 4 is arranged at an opening at the bottom end of the water pumping pipeline.

After putting into the aquatic with the cofferdam body, start a plurality of suction pumps 3 simultaneously, a plurality of suction pumps 3 work jointly, take out the inside water in cofferdam body through the pipeline that draws water to arrange to the cofferdam body outside through drainage pipe 2. And in the process of pumping and draining water, the water at the bottom in the cofferdam body is gradually absorbed by the water pumping pipeline, so that the liquid level of the water level in the cofferdam body is slowly reduced, the water pumping pipeline does not need to move according to the reduction of the liquid level of the water level, and the stability of the water pumping pipeline in operation is ensured.

Referring to fig. 2 and 3, in order to facilitate the installation of the water pumping pipeline, the water pumping pipeline is composed of a plurality of branch pipelines 5, the branch pipelines 5 are in one-to-one correspondence with the base rings 1, namely, a plurality of branch pipelines 5 are arranged in each base ring 1, and when two adjacent base rings 1 are spliced, the corresponding two branch pipelines 5 are connected through flanges.

Referring to fig. 3 and 5, two bases 6 are welded between the branch pipe 5 and the inner side wall of the base ring 1, the two bases 6 are respectively located at two ends of the branch pipe 5, and the bases 6 are used for installing the branch pipe 5 on the base ring 1 and enabling the branch pipe 5 and the inner side wall of the base ring 1 to be arranged at intervals.

Referring to fig. 3 and 5, a connecting mechanism 7 is further arranged between the base 6 and the inner side wall of the base ring 1, and the base 6 is detachably connected with the base ring 1 through the connecting mechanism 7. The connecting mechanism 7 comprises an upper snap ring 71 and a lower snap ring 72, the upper snap ring 71 is sleeved on the base ring 1 and fixedly connected with the base ring, the lower snap ring 72 is also sleeved on the base ring 1 and fixedly connected with the base ring, and the lower snap ring 72 is positioned below the upper snap ring 71. The side that base 6 is close to last snap ring 71 and lower snap ring 72 is the cambered surface setting, and the cambered surface axis of base 6 and the coincidence of the axis of base ring 1, and the cambered surface butt of base 6 is on last snap ring 71 and the inside wall of lower snap ring 72.

Referring to fig. 5, an upper fixture block 73 is arranged on one side of the base 6 close to the upper snap ring 71, the upper fixture block 73 is positioned above the upper snap ring 71, the upper fixture block 73 is also arranged in an arc shape, and the axis of the upper fixture block 73 coincides with the axis of the base ring 1. The upper clamping block 73 can move on the base 6 along the axial direction of the base ring 1, a driving assembly 74 for driving the upper clamping block 73 to move is arranged on the base 6, and the upper clamping block 73 is abutted downwards on the top surface of the upper clamping block 73 under the action of the driving assembly 74.

Referring to fig. 5, a lower fixture block 75 is further fixedly arranged on one side of the base 6 close to the lower fixture block, the lower fixture block 75 is symmetrically arranged with the upper fixture block 73, that is, the lower fixture block 75 is also arranged in an arc shape with the axis coinciding with the axis of the base ring 1, and the lower fixture block 75 abuts against the bottom surface of the lower fixture ring 72. The base 6 is connected with the base ring 1 by the clamping force of the upper clamping ring 71 and the lower clamping ring 72 through the upper clamping block 73 and the lower clamping block 75, and can be connected at any position on the inner side wall of the base ring 1, so that the branch pipes 5 on two adjacent base rings 1 are aligned.

In addition, referring to fig. 6 and 7, the top surface of the upper snap ring 71 is further provided with an upper snap groove 711 formed by a downward depression, the bottom surface of the upper snap block 73 is fixedly provided with an upper protrusion 731 matched with the upper snap groove 711, and the upper protrusion 731 is snapped in the upper snap groove 711. The bottom surface of the lower snap ring 72 is provided with a lower slot 721 formed by upward sinking, the top surface of the lower snap ring 75 is fixedly provided with a lower protrusion 751 matched with the lower slot 721, and the lower protrusion 751 is clamped in the lower slot 721.

Referring to fig. 7, the driving assembly 74 includes a mounting plate 741, the mounting plate 741 is located above the upper fixture 73, and the mounting plate 741 is fixed to the top end of the base 6. A screw 742 is connected to the mounting plate 741 through threads, the axis of the screw 742 is parallel to the axis of the base ring 1, the bottom end of the screw 742 is rotatably connected to the upper fixture block 73, and the top end of the screw 742 is located above the mounting plate 741 and is fixedly connected with a hand wheel 743. Two guide rods 744 are further fixedly arranged on the top surface of the clamping block, the two guide rods 744 are respectively located at two sides of the screw 742, and the top ends of the guide rods 744 penetrate through the mounting plate 741 to be connected with the mounting plate in a sliding manner.

The screw 742 is rotated by the hand wheel 743, the screw 742 drives the upper clamping block 73 to move along the axial direction of the upper clamping block 73, when the upper clamping block 73 moves upwards, the upper clamping block 73 is separated from the upper clamping ring 71, and meanwhile, the upper protrusion 731 is separated from the upper clamping groove 711, so that the base 6 can be detached from the upper clamping ring 71 and the lower clamping ring 72; otherwise, the base 6 is mounted on the upper snap ring 71 and the lower snap ring 72, so that the connection mode is simple and convenient, the positions of the branch pipes 5 are convenient to adjust, and two corresponding branch pipes 5 on two adjacent base rings 1 are convenient to align and connect.

The cofferdam structure convenient to drainage of the embodiment of the application has the following implementation principle: when the cofferdam is installed, the base rings 1 are sequentially spliced together from bottom to top, firstly, the lowest branch pipeline 5 is installed on the lowest base ring 1, and then, the base ring 1 is placed in water, so that the top end of the base ring 1 floats out of the water surface; continuously stacking base rings 1 from the top ends of the base rings 1, welding and connecting the joints of the two base rings 1, after the two base rings 1 are connected, installing upper branch pipelines 5 in the upper base ring 1 according to the positions of the branch pipelines 5 in the lower base ring 1, connecting the corresponding two branch pipelines 5 through flanges, sinking the lower base ring 1 into water under the pressure of the upper base ring 1, and simultaneously, keeping the top ends of the upper base ring 1 in a water surface paying state, repeating the steps until the lowest base ring 1 is contacted with the bottom of a river channel, so that the base rings 1 form a cofferdam body and the branch pipelines 5 are connected into a water pumping pipeline; finally, a water suction pump 3 and a drainage pipeline 2 are arranged on the top surface of the base ring 1 from the top.

After the cofferdam is installed, the water suction pumps 3 are started simultaneously, water in the cofferdam is sucked into the water suction pipelines under the action of the water suction pumps 3 and is discharged to the outer side of the cofferdam through the water discharge pipeline 2, and the water suction and drainage process in the cofferdam is simple and convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cofferdam structure convenient to drainage, includes the cofferdam body, the cofferdam body includes a plurality of base rings (1), the cofferdam body is formed its characterized in that by a plurality of base rings (1) butt in proper order from top to bottom: the cofferdam comprises a cofferdam body and is characterized by also comprising a plurality of water pumping pipelines arranged on the inner side of the cofferdam body, wherein the bottom ends of the water pumping pipelines extend to the bottom of the cofferdam body;

a plurality of drainage pipelines (2) are arranged at the top end of the cofferdam body, the drainage pipelines (2) correspond to the water pumping pipelines one by one, one end of each drainage pipeline (2) extends to the outer side of the cofferdam body, and a water pumping pump (3) is arranged between each drainage pipeline (2) and each water pumping pipeline; the water pumping pipeline comprises a plurality of branch pipelines (5), the branch pipelines (5) correspond to the base rings (1) one by one, and the branch pipelines (5) on two adjacent base rings (1) are connected with each other;

a base (6) is arranged between the branch pipeline (5) and the inner side wall of the base ring (1), and a connecting mechanism (7) which can detachably connect the base (6) and the base ring (1) is arranged between the base (6) and the base ring (1);

the connecting mechanism (7) comprises an upper clamping ring (71) sleeved on the inner side wall of the base ring (1), a lower clamping ring (72) fixedly arranged on the inner side wall of the base ring (1) and positioned below the upper clamping ring (71), an upper clamping block (73) arranged on the base (6) and positioned above the upper clamping ring (71), and a lower clamping block (75) fixedly arranged on the base (6) and positioned below the lower clamping ring (72);

the upper clamping block (73) can slide on the base (6) along the axial direction of the base ring (1), a driving assembly (74) for driving the upper clamping block (73) to slide is further arranged on the base (6), and the upper clamping block (73) downwards extrudes the upper clamping ring (71) under the action of the driving assembly (74);

the lower fixture block (75) is upwards abutted against the lower clamping ring (72);

an upper clamping groove (711) formed by downward sinking is formed in the top surface of the upper clamping ring (71), an upper protrusion (731) matched with the upper clamping groove (711) is fixedly arranged on the bottom surface of the upper clamping block (73), and the upper protrusion (731) is clamped in the upper clamping groove (711);

the bottom surface of the lower clamping ring (72) is provided with a lower clamping groove (721) which is formed by upward sinking, the top surface of the lower clamping block (75) is fixedly provided with a lower bulge (751) which is matched with the lower clamping groove (721), and the lower bulge (751) is clamped in the lower clamping groove (721);

the driving assembly (74) comprises a mounting plate (741) fixedly arranged on the base (6), the mounting plate (741) is located above the upper clamping block (73), a screw rod (742) is connected to the mounting plate (741) in a threaded mode, the bottom end of the screw rod (742) is rotatably connected to the upper clamping block (73), and a hand wheel (743) is fixedly arranged at one end, far away from the upper clamping block (73), of the screw rod (742).

2. The cofferdam structure for facilitating drainage of water according to claim 1, wherein: two adjacent branch pipelines (5) are connected through flanges.

3. The cofferdam structure for facilitating drainage of water according to claim 1, wherein: one side of the screw rod (742) is provided with a guide rod (744), a penetrating fixing plate of the guide rod (744) is connected with the guide rod in a sliding mode, and the bottom end of the guide rod (744) is fixedly connected with the upper clamping block (73).

4. Cofferdam structure for facilitating drainage of water according to any of claims 1-3, wherein: the bottom end of the water pumping pipeline extends towards one side of the axis of the cofferdam body in a bending mode.

5. The cofferdam structure for facilitating drainage of water according to claim 4, wherein: and a filter screen (4) is arranged at the opening at the bottom end of the water pumping pipeline.