CN219863028U - Pipe-following climbing ditcher device - Google Patents

Abstract

The utility model discloses a pipe-following climbing ditcher device, which comprises a frame, two skid bodies and two spraying mechanisms, wherein the frame is sleeved on the outer peripheral surface of a sea pipe from the upper part of the frame in a downward hooping manner, the two skid bodies support the frame, the two spraying mechanisms are symmetrically arranged and connected with two sides of the frame, the frame is of a semicircular hoop structure which is matched with the sea pipe, the two skid bodies are respectively fixedly connected with two sides of the frame and are symmetrically arranged relative to the central line of the frame, at least one group of upper guide rollers are rotatably arranged on the frame and can roll along the outer peripheral surface of the upper part of the sea pipe, and one group of upper guide rollers consist of two upper guide rollers which are symmetrical relative to the central line of the frame; the device frame is half-ferrule structure, can adapt to sea pipe appearance well to contact with sea pipe upper portion outer peripheral face through last deflector roll on it, when the operation, can slide along the pipeline direction, improves the accuracy of following the pipeline ditching, and sea pipe and frame are coaxial state, and the spraying mechanism that the symmetry is located the frame both sides spouts the submarine surface and fixes a position the ditch shape that holds the sea pipe, makes the sea pipe accurately sink in the ditch shape.

Description

Pipe-following climbing ditcher device

Technical Field

The utility model relates to the technical field of submarine operation devices, in particular to a down-pipe climbing trencher device.

Background

The submarine pipeline is dug in two modes, namely, the submarine pipeline is dug before being dug, commonly called pre-dug, the dug efficiency of the pre-dug is high, the ditch depth of the ditch type ditch is easy to realize, but adjustment is needed when pipe laying is carried out, secondly, the ditch is dug after pipe laying, commonly called post-dug, the post-dug is dug, after the pipeline is laid with an optimal line, ditches right below the post-dug to enable the post-dug to sink into the ditch, thereby achieving the purpose of stabilizing the submarine pipeline.

Disclosure of Invention

The present utility model is directed to overcoming the drawbacks of the prior art and providing a down-the-tube trencher apparatus utilizing a laid sea tube as a guide to solve the problems set forth in the background art.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model provides a along pipe climbing ditcher device, include by the downward hoop of top cover frame on sea pipe outer peripheral face, two skid bodies of support frame, and two spouting towards the mechanism of symmetry setting and being connected with the frame both sides, the frame is the semicircular hoop structure that suits with sea pipe, two skid bodies respectively with the both sides fixed connection of frame, and set up for the frame central line symmetry, rotatable setting is gone up the deflector roll in the frame at least a set of, can roll along sea pipe upper portion outer peripheral face, a set of deflector roll comprises two last deflector rolls of relative frame central line symmetry.

Preferably, the spraying and punching mechanism comprises a spraying and punching pipe, a lower guide roller rotatably arranged on the spraying and punching pipe and a spraying and punching head arranged at the tail end of the spraying and punching pipe, wherein in an operation state, the spraying and punching pipe is obliquely arranged at an inclined angle a, the upper lower guide roller rolls along the peripheral surface of the lower part of the sea pipe, and the spraying and punching head stretches into a ditching area arranged right below the peripheral surface of the lower part of the sea pipe to spray and punch the sea floor right below the spraying and punching head.

Further preferably, the spray pipe is swingably arranged on the frame, the upper part of the spray pipe is connected with the frame through a first connecting rod connected with the pin shaft, and the lower part of the spray pipe is connected with the end part of the frame through a second connecting rod connected with the pin shaft, so that the vertical position of the spray pipe in the installation state and the inclined position of the spray pipe in the operation state can be switched.

Further preferably, curved surface grooves which are matched with the outer circumferential surface of the sea pipe are formed on the roller surfaces of the upper guide roller and the lower guide roller.

Further preferably, the spraying punch comprises a front spraying punch for spraying the seabed surface at the front end of the ditching and a lower spraying punch for spraying the seabed surface along the tangential direction of the sea pipe, wherein the front spraying punch sprays forwards and obliquely downwards.

Further preferably, in the working state, a is 40 DEG.ltoreq.a.ltoreq.50 deg.

Compared with the prior art, the down pipe climbing trencher device has the following beneficial effects:

1. the device frame is of a half-hoop structure, can well adapt to the shape of a sea pipe, is in contact connection with the peripheral surface of the upper part of the sea pipe through an upper guide roller on the device frame, can slide along a pipeline guide during operation, improves the accuracy of ditching along the pipeline, and the sea pipe and the frame are in a coaxial state, and the spraying mechanisms symmetrically positioned at two sides of the frame spray the sea bottom surface to position and hold the sea pipe so that the sea pipe accurately sinks in the groove;

2. the spray pipe of the spray mechanism can swing to conveniently install the device, and under the supporting action of the upper edge of the ditching region on the lower guide roller, the spray pipe swinging to an operation state presses the surface of the sea pipe through the upper guide roller and the lower guide roller of the spray pipe to form a sea pipe collar structure in cooperation with the upper guide roller, so that the combination degree of the device and the sea pipe can be further improved, the loosening of the operation process is prevented, and the operation accuracy is improved;

3. the lower spraying punch sprays tangential water columns to form the bottom of the ditching region, the front spraying punch sprays water columns obliquely downwards forwards to excavate two side surfaces of the ditching region and to discharge sand forwards, and the spraying punch can realize shallow ditch with higher matching degree between the local excavation of the close sea pipe and the outer peripheral surface of the lower part of the sea pipe, so that the spraying pressure is fully utilized, and the excavation efficiency is improved.

Drawings

FIG. 1 is a front view of a trencher assembly of the present utility model (including its installed and operational states, with the auxiliary line being the installed and solid line being the operational state;

fig. 2 is a side view of the trencher assembly of the present utility model in an assembled condition.

In the figure: 1. a sea pipe; 2. a spraying and punching mechanism; 21. a spray pipe; 22. a lower guide roller; 23. a support rod; 3. a frame; 31. a support band; 32. an upper guide roller; 33. a reinforcing rod; 34. dragging the ear; 4. a water pipe; 5. a first link; 6. a skid body; 7. a second link; 8. spraying a punch; 81. a lower spraying punch; 82. and (5) spraying a punch head forwards.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only preferred embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the pipe-following trenching machine device of the present embodiment is suitable for the post trenching operation of a laid sea pipe 1, and the trenching depth is small, and the pipe-following trenching machine device is supported by a skid 6 at the lower parts of two sides of a frame 3 in a bottoming manner, and is towed and slid by a hauling rope on a deck of a ship, the frame 3 is connected by at least two parallel supporting hoops 31 through a reinforcing rod 33 to form a semicircular hoops structure concentric with the sea pipe 1, a mounting rod for mounting an upper guide roller 32 is connected between the two supporting hoops 31, the upper guide roller 32 is perpendicular to the center line of the frame 3, and the upper guide rollers 32 are arranged in groups, at least one group, namely, at least two upper guide rollers 32 symmetrically positioned at two sides of the center line of the frame 3, are arranged in parallel along the axis direction of the sea pipe 1 in the present embodiment, so as to increase the contact area with the outer peripheral surface of the sea pipe 1, the two upper guide rollers 32 in each group are 90 ° and are contacted with the outer peripheral surface of the sea pipe 1, the upper guide rollers 32 under the self weight of the device hoops are connected with the two guide rollers 1 in a vertically-following manner, and the pipe-following down pressure sleeve is applied on the lower side of the frame 1 can be directly connected to the two guide rollers 2 below the sea pipe 1, and the pipe-following the pipe is positioned under the bottom of the frame 3, and the pipe-following down the pipe is precisely positioned on the frame 1, and can be driven down on the frame 2, and has a down-following the down pressure device.

In this embodiment, in order to further improve the combination degree between the device and the sea pipe 1, the lower guide rollers 22 are rotatably arranged on the spray pipe 21 of the spray mechanism 2, in the working state, the two symmetrical lower guide rollers 22 are in contact connection with the outer peripheral surface of the lower part of the sea pipe 1, the upper guide rollers 32 in contact connection with the outer peripheral surface of the lower part of the sea pipe 1 form an anti-drop collar structure and can roll along the pipe guide, in order to fully improve the concentration degree of spray pressure, the local sea bottom surface at the bottom of the sea pipe 1 is subjected to spray ditching, ditching water columns generated by the spray heads 8 at the tail ends of the spray pipes 21 are tightly attached to the sea pipe 1 as much as possible, the spray heads 8 are preferably arranged at the tangential positions of the spray pipes 21 and the sea pipe 1, and the spray heads 8 are obliquely arranged at an inclination angle of 40 degrees or less than 50 degrees, the bottom surfaces of the sea bottom right below the spray heads 8 extend into ditching areas positioned right below the outer peripheral surface of the lower part of the sea pipe 1, and the two lower guide rollers 22 are positioned at the upper edges of the two sides of the ditching areas, so that the ditching width and depth of the sea pipe with high consistency between the two lower guide rollers 22 are formed; specifically, the spraying punch 8 comprises a front spraying punch 82 for spraying the seabed surface at the front end of the ditching and a lower spraying punch 81 for spraying the seabed surface along the tangential direction of the sea pipe 1, the lower spraying punch 81 sprays tangential water columns, ditches the seabed surface right below the sea pipe 1 to form the bottom of the ditching area, the front spraying punch 82 sprays water columns obliquely downwards forwards, two side surfaces of the ditching area are excavated, sand is discharged forwards, and a side surface space capable of containing the spraying punch 8 is punched.

In this embodiment, the spray pipe 21 is connected with the high-pressure water supply device on the deck of the ship through the hose-shaped water pipe 4, and the spray pipe 21 is swingably arranged on the frame 3, so that the frame 3 is quickly installed, as shown in fig. 1, the spray mechanism 2 of the auxiliary line is external in the installation state, the spray pipe 21 comprises an input main pipe at the upper end and a split branch pipe with a lower end frame-shaped structure, the input main pipe is connected with the reinforcing rod 33 through the first connecting rod 5, the front spray punch 82 is at least one and is installed on a lower transverse pipe of the split branch pipe, the front spray punch 82 is installed at the lower end of a front side longitudinal pipe of the split branch pipe, the lower guide roller 22 is arranged between the two longitudinal pipes through the installation rod, the two longitudinal pipes are supported by the support rod 23, and two ends of the support rod 23 are connected with the two ends of the two support rings 31 through the second connecting rod 7, so that the vertical position of the spray pipe 21 in the installation state and the inclined position in the operation state can be swung.

In this embodiment, in order to increase the contact surface of the roller surface and improve the stability of the forward pipe rolling crawling, curved surface grooves corresponding to the outer peripheral surface of the sea pipe 1 are formed on the roller surfaces of the upper guide roller 32 and the lower guide roller 22, the lower guide roller 22 is in a frustum shape for positioning the inclined state of the spray pipe 21, and the upper guide roller 32 and the lower guide roller 22 are all installed through roller shafts.

The terms "outer", "upper", "lower", "front" and the like as used herein refer to the orientation or positional relationship shown in the drawings and the operational state of the trencher assembly. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the apparatus, elements or components indicated to the particular orientation or to be constructed and operated in a particular orientation; furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance;

also, some of the above terms may be used to indicate other meanings besides azimuth or positional relationships, for example, the term "upper" or the like may also be used to indicate some kind of dependency or connection relationship in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A down-the-tube trencher apparatus comprising: the marine pipe comprises a frame sleeved on the outer peripheral surface of a marine pipe in the upper direction, two skid bodies supporting the frame, and two spraying mechanisms symmetrically arranged and connected with two sides of the frame, wherein the frame is of a semicircular hoop structure which is adaptive to the marine pipe, the two skid bodies are respectively fixedly connected with two sides of the frame and symmetrically arranged relative to the center line of the frame, at least one group of upper guide rollers are rotatably arranged on the frame and can roll along the outer peripheral surface of the upper part of the marine pipe, and the group of upper guide rollers are composed of two upper guide rollers which are symmetrical relative to the center line of the frame.

2. The trencher assembly of claim 1, wherein: the spraying and flushing mechanism comprises a spraying and flushing pipe, a lower guide roller rotatably arranged on the spraying and flushing pipe and a spraying and flushing head arranged at the tail end of the spraying and flushing pipe, wherein the spraying and flushing pipe is obliquely arranged at an inclined angle a in an operation state, the lower guide roller on the spraying and flushing pipe rolls along the outer peripheral surface of the lower part of the sea pipe, and the spraying and flushing head stretches into a ditching area arranged right below the outer peripheral surface of the lower part of the sea pipe to spray and flush the seabed surface right below the spraying and flushing pipe.

3. The trencher assembly of claim 2, wherein: the spraying pipe can swing and set up in the frame, spraying pipe upper portion is through the first connecting rod of round pin hub connection the frame, its lower part is through the second connecting rod of round pin hub connection the frame tip for spraying pipe can swing and switch in the vertical position under the installation state and the incline position under the operating condition.

4. The trencher assembly of claim 2, wherein: curved surface grooves which are adapted to the outer circumferential surface of the sea pipe are formed in the roller surfaces of the upper guide roller and the lower guide roller.

5. The trencher assembly of claim 2, wherein: the spraying punch head comprises a front spraying punch head used for spraying the seabed surface at the front end of the ditching and a lower spraying punch head used for spraying the seabed surface along the tangential direction of the sea pipe, and the front spraying punch head sprays forwards and obliquely downwards.

6. The trencher assembly of claim 5, wherein: in the working state, a is more than or equal to 40 degrees and less than or equal to 50 degrees.