A buoyancy-adjustable underwater walking cofferdam device

Abstract

The application discloses a kind of buoyancy adjustable underwater walking cofferdam devices, the buoyancy adjustable underwater walking cofferdam device includes multiple docking sub-modules, multiple docking sub-modules are longitudinally arranged to form walking unit, each docking sub-module includes track-laying vehicle module and water tank, the top of track-laying vehicle module is equipped with construction frame, one end of track-laying vehicle module is connected with one end of water tank, the other end of track-laying vehicle module is connected with traction rope;Each track-laying vehicle module includes hydraulic motor, track-laying device, cofferdam frame, adjusting buoyancy tank and multiple lifting oil cylinders, the track-laying device is in contact with water channel, the hydraulic motor is installed in the track-laying device, the hydraulic motor is drivingly connected with the track-laying device, the top of the track-laying device is provided with connecting plate, the top of the connecting plate is connected with the bottom of multiple lifting oil cylinders, the top of the lifting oil cylinder is connected with the bottom of cofferdam frame.The posture of the design cofferdam module can be adjusted after installation.

Description

TECHNICAL FIELD

[0001] The present application relates to an improvement of cofferdam device technology, belonging to the field of underwater maintenance equipment, in particular to a kind of underwater walking cofferdam device with adjustable buoyancy. BACKGROUND

[0002] The middle line project of South-to-North Water Diversion is affected by complex geological conditions, high groundwater, flood, frost heaving and other factors, and the channel lining plate appears different degrees of cracking, uplift, collapse and other damage phenomena, which affects the water supply efficiency and safety, and the efficient and high-quality completion of channel lining plate maintenance and repair construction is urgent. And with the increasing demand for water resources along the line city, the continuous water supply guarantee requirement of the middle line project of South-to-North Water Diversion is higher and higher, and the related maintenance and repair construction of lining plate can only be carried out in the water conveying state. When repairing the water channel lining plate, in order to ensure the flow requirement of the water channel, the water channel is divided into dry area lining plate repair operation area and flow area by installing cofferdam equipment in the water channel. Affected by external lifting and transportation, the cofferdam equipment adopts modular design, and each independent module is assembled into a whole cofferdam after underwater assembly. However, the floating force generated by the single cofferdam module during the installation and immersion process at the channel slope is not the same, and the movement posture of the cofferdam module cannot be adjusted after installation.

[0003] The Chinese patent application with application number CN 202010631612.6 and application date July 3, 2020 discloses an underwater trencher walking device, which comprises a vehicle frame and a pair of sub-walking devices symmetrically arranged about the center axis of the vehicle frame; the sub-walking device is connected to the vehicle frame; the sub-walking device comprises a track beam, a driving device, a track and a protection device; the track beam is detachably connected to the vehicle frame, and the track beam is configured to transmit the force of the trencher; the driving device is detachably connected to the track beam, and the driving device is connected with the track and configured to drive the track to rotate; the track is installed around the track beam and configured to drive the trencher to walk; the protection device is arranged above the track and detachably connected to the track beam, and configured to prevent the track from scratching and winding the umbilical cable of the trencher. However, the problem that the movement posture of the cofferdam module cannot be adjusted after installation is still not solved in the comparative document.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the general background of the present patent application and should not be taken as admission that this information constitutes prior art with respect to any patentable claim derived from the present application. SUMMARY

[0005] The purpose of the present application is to overcome the problem that the movement posture of the cofferdam module cannot be adjusted after installation in the prior art, and to provide a kind of underwater walking cofferdam device with adjustable buoyancy, which can adjust the movement posture of the cofferdam module after installation.

[0006] To achieve the above object, the technical solution of the present application is: a floating force adjustable underwater walking cofferdam device, the floating force adjustable underwater walking cofferdam device comprises a plurality of docking sub-modules, the plurality of docking sub-modules are longitudinally arranged to form a walking unit, each docking sub-module comprises a caterpillar truck module and a water tank, a construction frame is installed on the top of the caterpillar truck module, one end of the caterpillar truck module is connected with one end of the water tank, and the other end of the caterpillar truck module is connected with a traction rope;

[0007] Each caterpillar truck module comprises a water hydraulic drive motor, a caterpillar walking device, a cofferdam module, an adjusting float box and a plurality of lifting oil cylinders.

[0008] The caterpillar walking device is in contact with a water channel, the water hydraulic drive motor is installed in the caterpillar walking device and is drivingly connected with the caterpillar walking device, the top of the caterpillar walking device is provided with a connecting plate, the top of the connecting plate is connected with the bottoms of the plurality of lifting oil cylinders, the tops of the lifting oil cylinders are connected with the bottom of the cofferdam module, the cofferdam module is provided with the adjusting float box, one side of the connecting plate is connected with the water tank, and the other side of the connecting plate is connected with the traction rope.

[0009] The cofferdam module comprises a bottom plate, a top plate and a side wall frame, the top side wall of the bottom plate is connected with the bottom of the side wall frame, the top of the side wall frame is connected with the bottom of the top plate, and the bottom of the bottom plate is connected with the top of the connecting plate.

[0010] The bottom of the bottom plate is provided with a plurality of grooves, and each lifting oil cylinder is arranged in a corresponding groove.

[0011] The top of the bottom plate and the bottom of the top plate are provided with an obliquely arranged support rod therebetween, one auxiliary rod and two auxiliary rods are respectively arranged between the left and right sides of the upper end of the support rod and the bottom plate, the one auxiliary rod is located on the left side of the support rod, and the two auxiliary rods are located on the right side of the support rod.

[0012] The top plate is obliquely arranged downward from left to right, and the left side of the side wall frame is higher than the right side of the side wall frame.

[0013] The support rod is parallel to the side wall frame, and the inclination angle of the support rod is the same as that of the side wall frame.

[0014] The length of the bottom plate is the same as that of the connecting plate, and the connecting plate and the caterpillar walking device are connected through a supporting mechanism.

[0015] The side wall of the caterpillar walking device is provided with a plurality of high-strength steel caterpillar tracks, and rubber layers are arranged on the side walls of all the steel caterpillar tracks.

[0016] The adjusting float box is provided with a water level measuring device and a water filling device.

[0017] The positioning mechanism is arranged between the tracked vehicle module and the water tank, and a sealing plate is arranged on the side wall of the water tank.

[0018] The water tank is arranged perpendicularly to the water channel, the tracked vehicle module is arranged along the slope of the water channel, a plurality of walking units are arranged in sequence along the direction of the water channel, and the walking directions of the adjacent two walking units are different.

[0019] A use method of the floating force-adjustable underwater walking cofferdam device, the use method of the floating force-adjustable underwater walking cofferdam device comprises the following steps:

[0020] The single tracked vehicle module is hoisted to the target position, and then the tracked vehicle module is connected with the water tank to form a docking sub-module;

[0021] A construction frame is arranged on the top of the tracked vehicle module;

[0022] Then, a plurality of docking sub-modules are longitudinally spliced into a column to form a walking unit, and the walking unit is driven to walk along the direction of the traction rope to the middle of the water channel;

[0023] The longitudinal position and the transverse position of the tracked vehicle module are adjusted according to the use requirement, and finally the construction is carried out.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1. In the floating force-adjustable underwater walking cofferdam device, the floating force-adjustable underwater walking cofferdam device comprises a plurality of docking sub-modules, the plurality of docking sub-modules are longitudinally arranged to form a walking unit, when the cofferdam device walks along the slope of the channel, the tracked of the longitudinal walking unit is lifted by the lifting oil cylinder, the transverse movement posture of the cofferdam module is adjusted, when walking perpendicularly to the slope of the channel, the tracked of the longitudinal walking unit is in contact with the lining plate, the tracked of the transverse walking unit is lifted, the longitudinal movement posture of the cofferdam module is adjusted, so that the movement posture can be adjusted after the cofferdam module is installed, when the cofferdam module needs to be fine-tuned, the speed of the tracked is adjusted. Therefore, the movement posture of the cofferdam module can be adjusted, and the use is convenient.

[0026] 2. In the floating force-adjustable underwater walking cofferdam device, the top of the connecting plate is connected with the bottom of the plurality of lifting oil cylinders, the top of the lifting oil cylinder is connected with the bottom of the cofferdam module, the cofferdam module is provided with an adjusting float tank, the adjusting float tank is provided with a water level measuring device and a water filling device, during the whole water walking process, the pressure on the lining plate at the bottom of the water channel is different due to the different water depths and the different numbers of the cofferdam modules connected at the top, at this time, the water level in the adjusting float tank can be adjusted to ensure that the pressure on the lining plate is kept within a controllable range. Therefore, the pressure can be adjusted, and the operation is safe.

[0027] 3, The underwater walking cofferdam device with adjustable buoyancy, the track walking device is in contact with the water channel, the water hydraulic drive motor is installed in the track walking device, the water hydraulic drive motor is drivingly connected with the track walking device, the top of the track walking device is provided with a connecting plate, the water hydraulic drive motor is driven, the pollution of the water source caused by the leakage of the hydraulic components is avoided, the rubber layer is laid on the side wall of all the steel tracks, the contact area and the friction coefficient of the track and the lining plate of the water channel are increased, and the lining plate is not easy to be damaged. Therefore, the design is pollution-free and has long service life. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is the structural diagram of the present application.

[0029] Fig. 2 is the structural diagram of the walking unit in the present application.

[0030] Fig. 3 is the structural diagram of the track vehicle module in the present application.

[0031] Fig. 4 is the structural diagram of the cofferdam module in the present application.

[0032] In the figure: track vehicle module A, water tank B, docking sub-module C, walking unit D, construction frame E, water hydraulic drive motor 1, track walking device 2, cofferdam module 3, bottom plate 31, top plate 32, side wall frame 33, groove 34, one auxiliary rod 35, two auxiliary rods 36, support rod 37, adjusting float tank 4, lifting oil cylinder 5, connecting plate 6, supporting mechanism 7, water channel 8, traction rope 9. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Reference Figs. 1 to 4 A underwater walking cofferdam device with adjustable buoyancy, the underwater walking cofferdam device with adjustable buoyancy comprises a plurality of docking sub-modules C, the plurality of docking sub-modules C are longitudinally arranged to form a walking unit D, the walking unit D is arranged on a water channel 8, the walking unit D is sequentially provided with a plurality of walking units D along the direction of the water channel 8, each docking sub-module C comprises a track vehicle module A and a water tank B, a construction frame E is installed on the top of the track vehicle module A, one end of the track vehicle module A is connected with one end of the water tank B, and the other end of the track vehicle module A is connected with a traction rope 9;

[0035] Each track vehicle module A comprises a water hydraulic drive motor 1, a track walking device 2, a cofferdam module 3, an adjusting float tank 4 and a plurality of lifting oil cylinders 5;

[0036] The caterpillar walking device 2 is in contact with the water channel 8, a water hydraulic drive motor 1 is installed in the caterpillar walking device 2, the water hydraulic drive motor 1 is in driving connection with the caterpillar walking device 2, a connecting plate 6 is arranged on the top of the caterpillar walking device 2, the top of the connecting plate 6 is connected with the bottom of a plurality of lifting oil cylinders 5, the top of the lifting oil cylinders 5 is connected with the bottom of the cofferdam module 3, an adjusting float tank 4 is arranged in the cofferdam module 3, one side of the connecting plate 6 is connected with a water tank B, and the other side of the connecting plate 6 is connected with a traction rope 9.

[0037] The cofferdam module 3 comprises a bottom plate 31, a top plate 32 and a side frame 33, the top side of the bottom plate 31 is connected with the bottom of the side frame 33, the top of the side frame 33 is connected with the bottom of the top plate 32, and the bottom of the bottom plate 31 is connected with the top of the connecting plate 6.

[0038] A plurality of grooves 34 are arranged on the bottom of the bottom plate 31, and each lifting oil cylinder 5 is arranged in a corresponding groove 34.

[0039] A support rod 37 is arranged between the top of the bottom plate 31 and the bottom of the top plate 32, and one auxiliary rod 35 and two auxiliary rods 36 are arranged between the left and right sides of the upper end of the support rod 37 and the bottom plate 31, the one auxiliary rod 35 is located on the left side of the support rod 37, and the two auxiliary rods 36 are located on the right side of the support rod 37.

[0040] The top plate 32 is arranged in a downward inclination from left to right, and the left side of the side frame 33 is higher than the right side of the side frame 33.

[0041] The support rod 37 is arranged in parallel with the side frame 33, and the inclination angle of the support rod 37 is the same as the inclination angle of the side frame 33.

[0042] The length of the bottom plate 31 is the same as the length of the connecting plate 6, and the connecting plate 6 is connected with the caterpillar walking device 2 through a support mechanism 7.

[0043] A plurality of high-strength steel caterpillar tracks are arranged on the side of the caterpillar walking device 2, and a rubber layer is arranged on the side of each steel caterpillar track.

[0044] The adjusting float tank 4 is provided with a water level measuring device and a water filling device.

[0045] A positioning mechanism is arranged between the caterpillar vehicle module A and the water tank B, and a sealing plate is arranged on the side of the water tank B.

[0046] The water tank B is arranged perpendicular to the water channel 8, the caterpillar vehicle module A is arranged along the slope of the water channel 8, a plurality of walking units D are arranged in the direction of the water channel 8 in sequence, and the walking directions of adjacent two walking units D are different.

[0047] The principle of the present application is as follows: a single tracked vehicle module A is hoisted to a target position, and then the tracked vehicle module A is connected with a water tank B to form a docking sub-module C; a construction frame E is installed on the top of the tracked vehicle module A; then a plurality of docking sub-modules C are longitudinally spliced into a column to form a walking unit D, and the walking unit D is driven to walk along the direction of the traction rope 9 into the middle of the water channel 8; the longitudinal position and the transverse position of the tracked vehicle module A are adjusted according to the use requirements, and finally the construction is carried out.

[0048] Embodiment 1

[0049] A floating force adjustable underwater walking cofferdam device, the floating force adjustable underwater walking cofferdam device comprises a plurality of docking sub-modules C, the plurality of docking sub-modules C are longitudinally arranged to form a walking unit D, the walking unit D is arranged on a water channel 8, each docking sub-module C comprises a tracked vehicle module A and a water tank B, a construction frame E is installed on the top of the tracked vehicle module A, one end of the tracked vehicle module A is connected with one end of the water tank B, and the other end of the tracked vehicle module A is connected with a traction rope 9; each tracked vehicle module A comprises a water hydraulic drive motor 1, a tracked walking device 2, a cofferdam module 3, an adjusting float tank 4 and a plurality of lifting oil cylinders 5; the tracked walking device 2 is in contact with the water channel 8, the water hydraulic drive motor 1 is installed in the tracked walking device 2, and the water hydraulic drive motor 1 is used for driving due to special requirements for water sources, so as to avoid pollution of the water source caused by leakage of hydraulic components, the water hydraulic drive motor 1 is drivingly connected with the tracked walking device 2, a connecting plate 6 is arranged on the top of the tracked walking device 2, the top of the connecting plate 6 is connected with the bottoms of the plurality of lifting oil cylinders 5, the tops of the lifting oil cylinders 5 are connected with the bottom of the cofferdam module 3, the cofferdam module 3 is provided with the adjusting float tank 4, one side of the connecting plate 6 is connected with the water tank B, and the other side of the connecting plate 6 is connected with the traction rope 9.

[0050] When applied: the walking unit D is alternately arranged along the direction of the water channel 8, the main difference between the two adjacent walking units D is that the directions of the walking tracks are different, the two walking units D can move transversely and longitudinally respectively, the tracked vehicle module A is arranged along the direction of the slope of the water channel 8, the water tank B is perpendicular to the direction of the tracked vehicle module A, when the cofferdam device walks along the slope, the track of the longitudinal walking unit D is lifted by the lifting oil cylinder 5, the transverse walking unit D is moved, the cofferdam module is adjusted in the transverse movement posture, when walking vertically to the slope, the track of the longitudinal walking unit D is in contact with the lining plate, the track of the transverse walking unit D is lifted, the longitudinal walking unit D is moved, when the cofferdam needs to be fine-tuned, the different rotating speeds of the two tracks are adjusted.

[0051] Embodiment 2

[0052] Embodiment 2 is basically the same as embodiment 1, and the difference is that:

[0053] The adjustable buoyancy underwater walking cofferdam device, the side wall of the track walking device 2 is provided with a plurality of high-strength steel tracks, and the side wall of all the steel tracks is paved with a rubber layer. In order to increase the contact area and friction coefficient of the track and the lining plate of the water channel 8, the design of the rubber layer not only increases the friction coefficient of the track and the lining plate, but also is not easy to cause damage to the lining plate. The water level measuring device and the water filling device are arranged in the adjusting buoy tank 4. During the whole process of the walking device entering the water, with the change of the water depth and the number of the upper connected cofferdam modules 3, the pressure on the bottom lining plate of the water channel 8 is also different. At this time, the water level in the adjusting buoy tank 4 can be adjusted to ensure that the pressure on the lining plate remains within a controllable range. The positioning mechanism is arranged between the track vehicle module A and the water tank B, and the sealing plate is installed on the side wall of the water tank B. The water tank B is arranged vertically to the water channel 8, and the track vehicle module A is arranged along the slope of the water channel 8.

[0054] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any equivalent modification or change made by those skilled in the art according to the disclosed content of the present application shall be included in the protection scope recorded in the claims.

Claims

1. A buoyancy-adjustable underwater walking cofferdam device, characterized by The buoyancy-adjustable underwater walking cofferdam device includes multiple docking sub-modules (C), which are arranged longitudinally to form a walking unit (D). The walking unit (D) is set on the water channel (8). Each docking sub-module (C) includes a tracked vehicle module (A) and a water tank (B). A construction frame (E) is installed on the top of the tracked vehicle module (A). One end of the tracked vehicle module (A) is connected to one end of the water tank (B), and the other end of the tracked vehicle module (A) is connected to a traction rope (9). Each tracked vehicle module (A) includes a water-hydraulic drive motor (1), a tracked walking device (2), a cofferdam module (3), an adjustable pontoon (4), and multiple lifting cylinders (5). The tracked walking device (2) is in contact with the water channel (8). A hydraulic drive motor (1) is installed inside the tracked walking device (2). The hydraulic drive motor (1) is connected to the tracked walking device (2). A connecting plate (6) is provided on the top of the tracked walking device (2). The top of the connecting plate (6) is connected to the bottom of multiple lifting cylinders (5). The top of the lifting cylinders (5) is connected to the bottom of the cofferdam module (3). An adjusting float box (4) is provided inside the cofferdam module (3). One side of the connecting plate (6) is connected to the water tank (B). The other side of the connecting plate (6) is connected to the traction rope (9). The cofferdam module (3) includes a bottom plate (31), a top plate (32) and a side frame (33). The top side of the bottom plate (31) is connected to the bottom of the side frame (33), the top of the side frame (33) is connected to the bottom of the top plate (32), and the bottom of the bottom plate (31) is connected to the top of the connecting plate (6). The bottom of the base plate (31) is provided with multiple grooves (34), and each lifting cylinder (5) is respectively set in the corresponding groove (34); An inclined support rod (37) is installed between the top of the base plate (31) and the bottom of the top plate (32). An auxiliary rod (35) and a second auxiliary rod (36) are respectively installed between the left and right sides of the upper end of the support rod (37) and the base plate (31). The first auxiliary rod (35) is located on the left side of the support rod (37), and the second auxiliary rod (36) is located on the right side of the support rod (37). The top plate (32) is inclined downward from left to right, and the height of the left side of the side frame (33) is greater than the height of the right side of the side frame (33); The support rod (37) is arranged parallel to the side frame (33), and the inclination angle of the support rod (37) is the same as the inclination angle of the side frame (33). A single tracked vehicle module (A) is hoisted to the target position, and then the tracked vehicle module (A) is connected to the water tank (B) to form a docking sub-module (C); a construction frame (E) is installed on the top of the tracked vehicle module (A); then multiple docking sub-modules (C) are longitudinally spliced ​​into a row to form a walking unit (D), and the walking unit (D) is driven to walk along the direction of the traction rope (9) towards the middle of the water channel (8); the longitudinal and lateral positions of the tracked vehicle module (A) are moved according to the usage requirements, and finally construction is carried out.

2. The buoyancy-adjustable underwater walking cofferdam device according to claim 1, characterized in that: The length of the bottom plate (31) is same as that of the connecting plate (6), and the connecting plate (6) is connected with the crawler walking device (2) through the supporting mechanism (7).

3. A buoyancy-adjustable underwater walking cofferdam device according to claim 2, characterized in that: The side of the crawler walking device (2) is provided with a plurality of high-strength steel tracks, and the side of all the steel tracks is provided with a rubber layer.

4. The buoyancy-adjustable underwater walking cofferdam device according to claim 1, characterized in that: The adjusting buoy (4) is provided with a water level measuring device and a water filling device.

5. The buoyancy-adjustable underwater walking cofferdam device according to claim 1, characterized in that: The positioning mechanism is arranged between the crawler module (A) and the water tank (B), and the sealing plate is arranged on the side of the water tank (B).

6. A buoyancy-adjustable underwater walking cofferdam device according to claim 5, characterized in that: The water tank (B) is arranged perpendicularly to the water channel (8), the crawler module (A) is arranged along the slope of the water channel (8), a plurality of walking units (D) are arranged in sequence along the direction of the water channel (8), and the walking directions of the adjacent two walking units (D) are different.

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