Adjustable drainage device for hydraulic reclamation area

Abstract

The utility model discloses an adjustable drainage device for a hydraulic reclamation area, which is arranged on a cofferdam body near a closure gap and comprises a plurality of drainage pipe groups which are arranged in parallel, a synchronous support which is connected with the drainage pipe groups in parallel, a transmission rod and an adjusting driving mechanism, and each drainage pipe group comprises a pre-buried pipe which is pre-buried in the cofferdam body, an adjustable drainage pipe with an adjustable angle and an adjustable joint. The inner end of the embedded pipe is connected with an adjustable drain pipe through an adjustable connector, a plurality of drain holes are evenly distributed in the upper portion of the adjustable drain pipe, and the two ends of a transmission rod are connected with a synchronous support and an adjusting driving mechanism through pin shafts. The drainage device is simple and reliable in structure and capable of being machined and assembled in batches, closure gap closure difficulty can be relieved in a diversion mode in the cofferdam closure period, the drainage depth and drainage points are controlled by adjusting the inclination angle of the adjustable drainage pipe according to the water level in a dredger fill area or the project progress during dredger fill, and dredger fill is prevented from being lost; in addition, the water inlet area of the adjustable drainage pipe is variable, and different drainage capacities can be achieved in cooperation with the hydraulic reclamation requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage devices, in particular to an adjustable drainage device for a blown filling area. Background Art

[0002] During the closing process of the cofferdam mouth, in order to reduce the pressure difference at the mouth and divert the flow, and to achieve the purpose of diverting the water flow near the mouth, it is necessary to set up a drainage device to exchange the internal and external water flow. In addition, during the land reclamation process, it is necessary to use the drainage device to discharge the remaining water in the cofferdam body so that the fill soil can settle and control the elevation of the fill area. Therefore, the setting of the drainage device is particularly important for the fill project.

[0003] Traditional drainage structures include overflow weir type, gate box type, buried pipe type, gate box and buried pipe combination type, among which the drainage structure with gate box can adjust the overflow height according to the water level, but the gate box is complicated to build and expensive, and the rest are non-adjustable and cannot be adjusted according to the constant change of water level. On the one hand, it is easy to cause the loss of blown fill soil and pollute the environment, and on the other hand, the drainage efficiency is low and unstable; for example, patent CN201520164515.5 blowing fill area floating box buried pipe combination drainage device uses a floating box combined with a buried pipe for drainage. The floating box automatically adjusts with the water level to ensure continuous drainage, but the floating box is used as a drainage outlet, and its drainage outlet flow is fixed and unchanged. The drainage volume cannot be increased or decreased according to the discharge requirements, and even the discharge may be stopped, and the drainage point is prone to fluctuations with the water flow. In the later stage of blowing fill, when the floating mud area in the blowing fill area gets closer and closer to the drainage outlet, fixed-point drainage cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide an adjustable filling area drainage device to solve one or more problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An adjustable filling area drainage device is arranged on a cofferdam body near a dragon mouth. The drainage device includes several drainage pipe groups arranged in parallel, a synchronous bracket of the parallel drainage pipe groups, a transmission rod and an adjusting drive mechanism. The drainage pipe group includes a pre-buried pipe pre-buried in the cofferdam body, an adjustable drainage pipe with adjustable angle and an adjustable joint. The outer end of the pre-buried pipe is connected to the open sea, and the inner end is connected to the adjustable drainage pipe located in the filling area through an adjustable joint. The adjustable drainage pipe can be rotatably adjusted to adjust the angle between the pre-buried pipe and the cofferdam body, so as to adjust the distance between the drainage point and the cofferdam body and the drainage depth. A plurality of drainage holes are evenly distributed on the outer peripheral surface of the upper section of the adjustable drainage pipe. Both ends of the transmission rod are pin-connected to the synchronous bracket and the adjusting drive mechanism respectively. The adjusting drive mechanism is arranged on the top of the cofferdam body to provide a driving force for the rotation of the adjustable drainage pipe.

[0007] Furthermore, the upper section of the adjustable drain pipe is covered with a filter screen cover, and the drain holes are all located in the filter screen cover.

[0008] Furthermore, the filter screen is a plurality of spherical screens which are serially connected and sleeved on the adjustable drain pipe.

[0009] Furthermore, the adjustment drive mechanism includes a driving motor, an adjusting rod, a locking wheel, a wheel seat, a locking pedal and a pedal seat. The driving motor drives the adjusting rod to rotate. The adjusting rod, the transmission rod and the adjustable drain pipe form a parallelogram mechanism. The adjusting rod is synchronously connected with the locking wheel. The pins of the two are installed on the wheel seat. The wheel disc of the locking wheel is evenly provided with locking grooves along the circumference of the ring. The locking pedal can be rotatably installed on the pedal seat, one end of which is a locking head, which cooperates with the locking groove to achieve angle limitation. The other end of the locking pedal is a pedal, and a locking spring is provided at the lower end of the pedal.

[0010] Compared with the prior art, the adjustable filling area drainage device of the utility model has the following beneficial effects:

[0011] The drainage device has a simple and reliable structure and can be mass-produced in the factory and assembled on site to achieve adjustable drainage. The difficulty of closing the dragon mouth is reduced by diversion. At the same time, according to the water level in the filling area or the progress of the filling project, the drainage depth and drainage point are controlled by adjusting the inclination angle of the adjustable drainage pipe to prevent the filling soil from being lost with the drainage. Compared with the pontoon drainage, the drainage device can not only achieve fixed-point drainage, but also the total water inlet area of ​​the adjustable drainage pipe is variable, which can achieve different drainage capacities in accordance with the filling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the installation structure of the drainage device of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the drainage device of the utility model;

[0014] Figure 3 for Figure 2 Schematic diagram of the structure of the adjusting drive mechanism.

[0015] In the figure: 1. cofferdam body; 11. dragon mouth; 2. drainage device; 21. synchronous bracket; 22. embedded pipe; 23. adjustable joint; 24. adjustable drainage pipe; 25. filter screen; 3. transmission rod; 4. adjustment drive mechanism; 41. adjustment rod; 42. locking wheel; 43. locking pedal; 44. locking spring; 45. pedal seat; 46. wheel seat; 47. driving motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only the best embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] This embodiment provides an adjustable filling area drainage device, which can be set just below the cofferdam body, such as Figure 1 As shown, it can also be symmetrically arranged on the cofferdam bodies on both sides of the dragon mouth 11, or drainage devices 2 can be arranged below and on both sides of the cofferdam body to reduce pressure and divert flow when the dragon mouth 11 is closed; Figure 1-Figure 3 As shown, the drainage device 2 includes a drainage pipe group, a synchronous bracket 21, a transmission rod 3 and an adjustment drive mechanism 4, and several drainage pipe groups are arranged in parallel, wherein the embedded pipe 22 is embedded during the cofferdam construction, and both ends of the embedded pipe 22 should extend out of both sides of the cofferdam body 1, wherein the adjustable drainage pipe 24 for adjusting the drainage point and drainage depth is connected to the inner end of the embedded pipe 22 through an adjustable joint 23, and the outer end of the embedded pipe 22 is connected to the open sea, in order to support the angle adjustment between the adjustable drainage pipe 24 and the embedded pipe 22, the adjustable joint 23 can be a threaded elbow, or a combination of an angle joint and a universal joint, and the outer peripheral surface of the upper section of the adjustable drainage pipe 24 is evenly distributed with a plurality of drainage holes, and the lowest position of the drainage hole is set according to the drainage diameter area design of the lowest water level in the filling area;

[0018] In order to synchronously adjust multiple drainage pipe groups, the synchronous bracket 21 is connected in parallel with multiple drainage pipe groups, and the transmission rod 3 is pin-connected to the middle of the synchronous bracket 21. In addition, considering the support problem of the drainage pipe group, the synchronous bracket 21 may include a fixed bracket and a movable bracket. The fixed bracket is connected in series with multiple embedded pipes 22 and is an immovable part. The movable bracket is connected in series with an adjustable drainage pipe 24. The fixed bracket and the movable bracket are pin-connected, and the connection point is located on the same straight line as the rotation center of the adjustable joint 23. The adjustable drainage pipe 24 is supported and driven by the movable bracket, which reduces the force applied by the adjustable drainage pipe 24 to the adjustable joint 23, and ensures the sealing reliability of the adjustable joint 23.

[0019] The adjusting driving mechanism 4 is anchored on the top of the cofferdam body 1, and its adjusting driving force is transmitted to the adjustable drain pipe 24 through the transmission rod 3; the transmission rod 3 drives the adjustable drain pipe 24 to rotate, adjusts the angle of the adjustable drain pipe 24, and thus controls the drainage depth and drainage point according to the change of the water level. The larger the angle, the more drainage holes are located under the water surface, and the larger the total water inlet area is formed; generally, when the filling position is far away, there is no floating dust within the adjustment range of the adjustable drain pipe 24. At this time, the inclination angle of the adjustable drain pipe 24 can be increased, the drainage depth can be lowered, and the drainage efficiency can be increased; in the later stage of filling, as the filling port is constantly approaching, the floating and sinking area is getting closer and closer to the adjustable drain pipe 24, the drainage depth should be increased, and the drainage point should be gradually close to the cofferdam body 1, so as to reduce the drainage volume and drainage efficiency and prevent the loss of filling soil. At this time, the inclination angle of the adjustable drain pipe 24 can be reduced according to the depth of the clear water layer, so as to synchronously adjust the drainage depth and drainage point to meet the drainage needs of filling construction;

[0020] In addition, in order to prevent the drainage pipe group from being blocked, the upper section of the adjustable drainage pipe 24 is covered and fixed with a filter screen cover 25, and the drainage holes are all located in the filter screen cover 25. The filter screen cover 25 can be a cylindrical structure. The filter screen cover 25 of this embodiment is preferably a plurality of spherical screen covers of the same size, which are sequentially connected in series from top to bottom on the adjustable drainage pipe 24. The top opening of the adjustable drainage pipe 24 is covered and filtered with a hemispherical screen cover. The setting of the multi-stage spherical screen cover not only increases the water filtering area, but also facilitates the operator to intuitively adjust the depth of the adjustable drainage pipe 24, and guides the number of spherical screen covers entering the water according to the drainage depth requirements to quickly adjust multiple drainage devices 2; in addition, by quickly adjusting the adjustable drainage pipe 24 up and down, the filter screen cover 25 can be washed with water power;

[0021] Further, as a specific technical solution for adjusting the driving mechanism 4, Figure 3 As shown, the adjustment drive mechanism 4 includes a drive motor 47, an adjustment rod 41, a locking wheel 42, a wheel seat 46, a locking pedal 43 and a pedal seat 45. The drive motor 47 is connected to the rotating shaft of the adjustment rod 41 through a coupling. The drive motor 47 is a low-speed output motor equipped with a worm gear reducer with low-speed torque increase. The worm gear reducer can realize a self-locking function and can lock the position of the adjustment rod 41 when the angle adjustment is completed; since the adjustment rod 41, the transmission rod 3 and the adjustable drain pipe 24 form a parallelogram planar connecting rod mechanism, the adjustment rod 41 is parallel to the adjustable drain pipe 24, and the rotation angle and inclination angle of the adjustment rod 41 are the rotation angle and inclination angle of the adjustable drain pipe 24, which is convenient for intuitive and convenient adjustment; the self-locking function of the drive motor 47 has certain limitations. The adjustable drain pipe 24 is affected by waves and the pressure difference between the internal and external water flow during use, especially when the closing operation is performed, it is affected by non-directional water flow. In order to improve the reliability of locking, a wheel seat 46 and a locking pedal 43 are additionally provided. Figure 3The adjusting rod 41 is synchronously connected with the locking wheel 42, and the pins of the two are installed on the wheel seat 46. The locking wheel 42 is used to lock the adjustment angle of the adjustable drain pipe 24. The wheel disc of the locking wheel 42 is evenly provided with locking grooves in an annular shape. The locking pedal 43 adopts a lever structure, which can be rotatably installed on the pedal seat 45. When locking, the driving motor 47 drives the adjusting rod 41 to reach the vicinity of the adjustment angle. When the locking head at one end of the locking pedal 43 gradually aligns with the locking groove near the edge of the wheel disc, the machine is stopped and the pedal 43 is released. The locking spring 44 lifts the pedal, and the locking wheel 42 is limited by the locking head, thereby realizing the double locking of the adjusting rod 41; when unlocking the adjustment, the pedal is stepped on, the locking head is disengaged from the locking groove, and the locking spring 44 is compressed. At this time, the angle position of the adjusting rod 41 can be freely adjusted.

[0022] The directional words "up", "down", "inside", "outside", "side" and so on mentioned in this article are described based on Figure 1-Figure 3 These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation;

[0023] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable filling area drainage device, characterized in that: The drainage device is arranged on the cofferdam body near the dragon mouth, and includes several drainage pipe groups arranged in parallel, synchronous brackets connected in parallel with the drainage pipe groups, transmission rods and adjusting driving mechanisms. The drainage pipe groups include embedded pipes embedded in the cofferdam body, adjustable drainage pipes with adjustable angles and adjustable joints. The outer end of the embedded pipe is connected to the open sea, and the inner end is connected to the adjustable drainage pipe located in the filling area through the adjustable joint. The adjustable drainage pipe can be rotatably adjusted to adjust the angle between the embedded pipe and the cofferdam body, so as to adjust the distance between the drainage point and the cofferdam body and the drainage depth. Several drainage holes are evenly distributed on the outer peripheral surface of the upper section of the adjustable drainage pipe. The two ends of the transmission rod are respectively pin-connected to the synchronous bracket and the adjusting driving mechanism. The adjusting driving mechanism is arranged on the top of the cofferdam body to provide driving force for the rotation of the adjustable drainage pipe.

2. The adjustable filling area drainage device according to claim 1, characterized in that: The upper section of the adjustable drain pipe is covered and fixed with a filter screen cover, and the drain holes are all located in the filter screen cover.

3. The adjustable filling area drainage device according to claim 2 is characterized in that: The filter screens are several spherical screens which are serially connected and sleeved on the adjustable drain pipe.

4. The adjustable filling area drainage device according to claim 1, characterized in that: The adjustment drive mechanism includes a drive motor, an adjustment rod, a locking wheel, a wheel seat, a locking pedal and a pedal seat. The drive motor drives the adjustment rod to rotate. The adjustment rod, the transmission rod and the adjustable drain pipe form a parallelogram linkage mechanism. The adjustment rod is synchronously connected with the locking wheel, and the pins of the two are installed on the wheel seat. The wheel disc of the locking wheel is evenly provided with locking grooves along the circumference of the ring. The locking pedal can be rotatably installed on the pedal seat, one end of which is a lock head, which cooperates with the locking groove to achieve angle limitation. The other end of the locking pedal is a pedal, and a locking spring is provided at the lower end of the pedal.

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