Spraying arm with adjustable length

Abstract

The utility model discloses a length-adjustable spray arm, which comprises a fixed seat, a fixed spray arm, a telescopic spray arm and a length adjusting mechanism, both the fixed end of the fixed spray arm and the fixed end of the telescopic spray arm are arranged on the fixed seat, the length of the telescopic spray arm is larger than that of the fixed spray arm, a channel communicated with the fixed spray arm and the telescopic spray arm is arranged in the fixed seat, and the length adjusting mechanism is arranged on the fixed spray arm. The fixed spraying arm and the telescopic spraying arm are each provided with a plurality of nozzles, one end of the length adjusting mechanism is connected with the telescopic end of the telescopic spraying arm, and the other end of the length adjusting mechanism is connected with the fixing base. According to the utility model, the fixed spraying arm and the telescopic spraying arm are arranged, so that the length can be telescopically adjusted, the ditching depth is deeper when the telescopic spraying arm is applied to seabed digging, and the universality is wider; meanwhile, the spraying arm can conduct multi-nozzle spraying ditching according to the actual situation, the longer the extending part is, the more the nozzles are, and the ditching efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the submarine cable laying technical field, concretely relates to a length adjustable spray arm. BACKGROUND

[0002] The laying of submarine cable needs to use special operation ditching device to dig ditch and bury cable, and the ditching mode generally adopts the operation mode of spray soil breaking, which breaks soil and digs ditch by using water jet, and forms a ditch by spraying water flow on the seabed through the spray arm with nozzle.

[0003] At present, the length of the spray arm on the ditching device is fixed and cannot be adjusted, and the universality is limited when different depth cable ditches need to be dug. UTILITY MODEL CONTENTS

[0004] The utility model discloses a length adjustable spray arm.

[0005] The utility model discloses the technical scheme is: a length adjustable spray arm, including fixed seat, fixed spray arm, telescopic spray arm, length adjusting mechanism, the fixed end of fixed spray arm and telescopic spray arm all installs on the fixed seat, and the length of telescopic spray arm is greater than the length of fixed spray arm, be equipped with the passageway in the fixed seat with fixed spray arm, telescopic spray arm intercommunication, a plurality of nozzles are arranged on fixed spray arm and telescopic spray arm respectively, one end of length adjusting mechanism is connected with the telescopic end of telescopic spray arm, and the other end is connected with fixed seat.

[0006] Further, the fixed spray arm includes a plurality of fixed spray pipes of different lengths, the plurality of fixed spray pipes are arranged in order from short to long, the plurality of fixed spray pipes are located in the same vertical plane and are arranged obliquely, the shortest fixed spray pipe is located at the lowermost position, and the nozzles are arranged at the bottom of the plurality of fixed spray pipes.

[0007] Further, the telescopic spray arm includes a plurality of telescopic spray pipes arranged side by side and a plurality of fixed pipes arranged coaxially, the nozzles are arranged at the bottom of the plurality of telescopic spray pipes, one end of the fixed pipe is connected with the fixed seat, the other end of the fixed pipe is sleeved inside the telescopic spray pipe and is in sealing contact with the inner wall of the telescopic spray pipe, the telescopic spray pipe includes a fixed spray section and a telescopic spray section, the fixed spray section is arranged at the end of the telescopic spray section, and the fixed spray section is provided with a mounting seat connected with one end of the length adjusting mechanism.

[0008] Further, the other end of the fixed pipe is provided with a sealing ring, and the other end of the fixed pipe is in sealing contact with the inner wall of the telescopic spray pipe through the sealing ring.

[0009] Further, the fixed seat comprises a fixed plate and a hinged segment in triangular shape and internally hollow, one end of the fixed spray arm, the telescopic spray arm and the fixed plate is connected with the hinged segment, and the side surface of the fixed spray arm and the telescopic spray arm is connected with the side surface of the fixed plate.

[0010] The utility model discloses the beneficial effects are:

[0011] The utility model discloses the spray arm passes through setting fixed spray arm and telescopic spray arm two kinds of spray arm structure, realized length telescopic adjustment, when applying to the seabed, the ditch depth is deeper, and the universality is wider, and simultaneously spray arm can according to actual condition carry out multi -jet nozzle spray ditch, and the longer the protruding part is, and the more nozzles are, and the ditch efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structural schematic diagram of the utility model.

[0013] Fig. 2 It is one kind of partial schematic view of the utility model telescopic spray arm.

[0014] Fig. 3 It is another kind of partial schematic view of the utility model telescopic spray arm.

[0015] In the drawing, 1 is fixed seat, 1.1 is hinged segment, 1.2 is fixed plate, 2 is fixed spray arm, 2.1 is fixed spray pipe, 3 is telescopic spray arm, 3.1 is telescopic spray pipe, 3.2 is fixed pipe, 3.3 is fixed spray segment, 3.4 is telescopic spray segment, 3.5 is mounting seat, 3.6 is sealing ring, 4 is nozzle, 5 is length adjusting mechanism. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model will be further explained in combination with the drawings. It needs to be explained here that the explanation of these implementation is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each implementation of the utility model described below can be combined mutually as long as they do not conflict with each other.

[0017] As Figs. 1-3The utility model provides a length adjustable spray arm, including fixed seat 1, fixed spray arm 2, telescopic spray arm 3, length adjusting mechanism 5, the fixed seat 1 is used for with the liquid pipeline 5.3 of ditching device articulates and communicates, the fixed end of fixed spray arm 2 and telescopic spray arm 3 all installs on fixed seat 1, and the length of telescopic spray arm 3 is greater than the length of fixed spray arm 2, and telescopic spray arm 3 is arranged with fixed spray arm 2 side by side and is spaced a certain distance, and it is convenient for telescopic spray arm 3 to contract, and the nozzle 4 on telescopic spray arm 3 is housed. The fixed seat 1 is equipped with the passageway of communication with fixed spray arm 2, telescopic spray arm 3, a plurality of nozzles 4 are arranged on fixed spray arm 2 and telescopic spray arm 3, and the axis of a plurality of nozzles 4 keeps consistent, one end of length adjusting mechanism 5 is connected with the telescopic end of telescopic spray arm 3, and the other end is connected with fixed seat 1, and the length of telescopic spray arm is adjusted through length adjusting mechanism 5 to realize the length adjustment of spray arm, and the telescopic adjusting device 5 is the hydraulic cylinder of telescopic adjustment.

[0018] It can be understood that the fixed seat 1 includes a fixed plate 1.2 and a triangular and internally hollow hinge segment 1.1, one end of the hinge segment 1.1 is used for articulating connection with the liquid pipeline, the fixed spray arm 2, the telescopic spray arm 3 and the end of the fixed plate 1.2 are connected with the other end of the hinge segment 1.1, and the side surface of the fixed spray arm 2 and the telescopic spray arm 3 is connected with the side surface of the fixed plate 1.2.

[0019] It can be understood that the fixed spray arm 2 includes a plurality of fixed spray pipes 2.1 of different lengths, the plurality of fixed spray pipes 2.1 are arranged in order from short to long, the plurality of fixed spray pipes 2.1 are located in the same vertical plane and are arranged obliquely, the shortest fixed spray pipe is located at the lowermost position, and the nozzle 4 is arranged at the position of the bottom of the plurality of fixed spray pipes, which is not covered by the corresponding shorter fixed spray pipe.

[0020] It can be understood that the telescopic spray arm 3 includes several telescopic spray pipes 3.1 with different lengths and arranged side by side, and several fixed pipes 3.2 arranged coaxially, the nozzle 4 is arranged at the bottom of the telescopic spray pipe 3.1, one end of the fixed pipe 3.2 is connected with the fixed seat 1, the other end is sleeved in the telescopic spray pipe 3.1, the other end of the fixed pipe 3.2 is provided with a sealing ring 3.6, the sealing ring 3.6 is in sealing cooperation with the inner wall of the telescopic spray pipe 3.1, the telescopic spray pipe 3.1 includes a fixed spray section 3.3 and a telescopic spray section 3.4, the fixed spray section 3.3 is arranged at the end of the telescopic spray section 3.4, the fixed spray section 3.3 is provided with a mounting seat 3.5 connected with one end of the length adjusting mechanism, the length of the telescopic spray section 3.4 relative to the fixed pipe 3.2 can be adjusted through the length adjusting mechanism 5, so that the length of the telescopic spray arm 3 is adjusted. The sealing ring 3.6 on the fixed pipe 3.2 can ensure that after adjusting the telescopic spray section (shortening the length of the spray arm), the corresponding nozzle is sealed (i.e. the nozzle is separated from the inside of the fixed pipe), so that the high-pressure liquid is not sprayed from the nozzle 4.1 at the shortened position, but only from the unsealed nozzle 4.2, thereby realizing the reduction of the number of nozzles (length adjustment of the spray arm).

[0021] When the utility model is applied to the seabed ditching device, the hinge section of the fixed seat is communicated with the liquid pipeline of the ditching device, the length of the telescopic arm is adjusted through the length adjusting mechanism, and then different depth trenches are dug according to requirements, and the universality is wider.

[0022] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

1. A spray arm of adjustable length, characterised in that: The utility model relates to a fixed seat (1), fixed spray arm (2), telescopic spray arm (3), length adjusting mechanism (5), the fixed end of fixed spray arm (2) and telescopic spray arm (3) are installed on fixed seat (1), and the length of telescopic spray arm (3) is greater than the length of fixed spray arm (2), the fixed seat (1) is equipped with the passageway with fixed spray arm (2), telescopic spray arm (3) interior intercommunication, a plurality of nozzles (4) are arranged on fixed spray arm (2) and telescopic spray arm respectively, one end of length adjusting mechanism (5) is connected with the telescopic end of telescopic spray arm (3), and the other end is connected with fixed seat.

2. The length adjustable spray arm of claim 1, wherein: The fixed spray arm (2) includes several fixed spray pipes (2.1) of different lengths, the several fixed spray pipes (2.1) are arranged in order from short to long, the several fixed spray pipes (2.1) are arranged in the same vertical plane and are inclined, the shortest fixed spray pipe (2.1) is located at the lowermost position, and the nozzle (4) is arranged at the bottom of the several fixed spray pipes (2.1).

3. The length adjustable spray arm of claim 1, wherein: The telescopic spray arm (3) includes several telescopic spray pipes (3.1) arranged side by side and several fixed pipes (3.2) arranged coaxially, the nozzle (4) is arranged at the bottom of the several telescopic spray pipes (3.1), one end of the fixed pipe (3.2) is connected with the fixed seat, the other end of the fixed pipe (3.2) is sleeved in the telescopic spray pipe (3.1) and is in sealing contact with the inner wall of the telescopic spray pipe, the telescopic spray pipe (3.1) includes a fixed spraying section (3.3) and a telescopic spraying section (3.4), the fixed spraying section (3.3) is arranged at the end of the telescopic spraying section (3.4), and the fixed spraying section (3.3) is provided with a mounting seat (3.5) connected with one end of the length adjusting mechanism.

4. The length adjustable spray arm of claim 3, wherein: The other end of the fixed pipe (3.2) is provided with a sealing ring (3.6) on the outer wall, and the other end of the fixed pipe (3.2) is in sealing contact with the inner wall of the telescopic spray pipe (3.1) through the sealing ring (3.6).

5. The length adjustable spray arm of claim 1, wherein: The fixed seat (1) includes a fixed plate (1.2) and a hinged section (1.1) in the shape of a triangle and hollow inside, one end of the fixed spray arm (2), the telescopic spray arm (3) and the fixed plate (1.2) is connected with the hinged section (1.1), and the side surface of the fixed spray arm (2) and the telescopic spray arm (3) is connected with the side surface of the fixed plate (1.2).

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