A device for dismounting a threaded accessory from a limited position of a marine vessel

Abstract

The application relates to the ship technology field and discloses a ship local position threaded accessory dismounting device, which comprises a locking mechanism for locking a threaded accessory, a plurality of force rods fixed on one side, the force rods extending to the outside of the locking mechanism, and the extension direction of the force rods being parallel to the central axis of the threaded accessory; a sleeve transmission mechanism comprising a sleeve and an arc-shaped plate, the arc-shaped plate being used for supporting a pipeline or the force rod to which the threaded accessory belongs, the sleeve being fixed at one end of the arc-shaped plate, the sleeve being used for being sleeved on the force rod, one end of the sleeve being fixed with a supporting block, a plug hole being formed in the supporting block, a lever being inserted into the plug hole, the lever being rotated, the lever prying the sleeve transmission mechanism to rotate, and the sleeve transmission mechanism and the locking mechanism driving the threaded accessory to synchronously rotate. The application has the advantages of small space occupation, convenient force application to the threaded accessory by moving the force point of the threaded accessory outward, convenient dismounting of the threaded accessory at the local position, improved dismounting efficiency, and reduced labor intensity.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a device for disassembling and assembling threaded accessories in restricted positions on ships. Background Technology

[0002] During shipbuilding and maintenance, the disassembly and assembly of threaded accessories, such as some pipe threads, bolts, and nuts, is difficult and inefficient due to the tight layout of ship piping and limited space. Existing tools like wrenches are often used, but this process is challenging. Operators must first spend half an hour climbing into the confined space to fit the wrench into the threaded accessory. Because of the limited space, the thread rotation angle is typically only 2-5 degrees at a time, requiring half an hour to an hour to remove a single accessory. Replacing a new threaded accessory then takes another half hour to an hour, and climbing out of the confined space requires another half hour. This results in low efficiency and high labor intensity in the disassembly and assembly of threaded accessories. Summary of the Invention

[0003] The purpose of this invention is to provide a device for disassembling and assembling threaded accessories in restricted positions on ships, so as to solve the problem that in the prior art, the disassembly and assembly of threaded accessories in restricted positions on ships is inefficient and labor-intensive when using tools such as wrenches.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The ship localized position threaded accessory disassembly and assembly device of the present invention includes:

[0006] A locking mechanism is used to lock threaded accessories. Multiple force-bearing rods are fixed on one side of the locking mechanism. The force-bearing rods extend from one side of the locking mechanism to the outside of the locking mechanism, and the extension direction of the force-bearing rods is parallel to the central axis of the threaded accessories.

[0007] A sleeve transmission mechanism, comprising a sleeve and an arc plate, wherein the arc plate is used to receive the pipe to which the threaded accessory belongs or the force-bearing rod, the sleeve is fixed to one end of the arc plate, the sleeve is used to be sleeved on the force-bearing rod, and a receiving block is fixed to one end of the sleeve, the receiving block having an insertion hole.

[0008] A pry handle, which is inserted into the insertion hole;

[0009] Rotating the pry handle causes the sleeve drive mechanism to rotate, which in turn causes the sleeve drive mechanism and the locking mechanism to drive the threaded accessory to rotate synchronously.

[0010] Preferably, the locking mechanism includes a locking body, a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece being spaced apart on the locking body, the spacing between the first clamping piece and the second clamping piece being adjustable, and the force-bearing rod being fixed to the first clamping piece or the second clamping piece.

[0011] Preferably, the locking body is a bidirectional locking screw, one end of which is threaded with a first locking nut and the other end of which is threaded with a second locking nut. The first clamping piece is fixed to the first locking nut, and the second clamping piece is fixed to the second locking nut.

[0012] Preferably, a rotating lever is fixed at each end of the locking body.

[0013] Preferably, there are four force-bearing rods, two of which are arranged vertically at intervals on one side of the first clamping plate, and the other two are arranged vertically at intervals on one side of the second clamping plate.

[0014] Preferably, a plurality of pulleys are installed on the arc-shaped plate, the central axis of the pulleys is parallel to the central axis of the sleeve, the rim surface of the pulleys protrudes from the inner plate surface of the arc-shaped plate, and the outer periphery of the pulleys is covered with a rubber layer.

[0015] Preferably, the plurality of pulleys are spaced apart along the length direction of the arc-shaped plate.

[0016] Preferably, the receiving block is cylindrical and coaxially arranged with the sleeve. The insertion hole is opened on the side wall of the receiving block, and the central axis of the insertion hole is perpendicular to the central axis of the sleeve.

[0017] Preferably, the sockets are multiple, and the multiple sockets are spaced apart along the circumferential direction of the receiving block.

[0018] Preferably, the pry bar includes a first pry bar and a second pry bar, one end of the first pry bar is provided with a sleeve, and the second pry bar is detachably installed in the sleeve.

[0019] Compared with the prior art, the advantages of the ship's limited-position threaded accessory disassembly and assembly device according to the present invention are as follows:

[0020] The shipboard limited-position threaded accessory disassembly and assembly device of this invention uses a locking mechanism to lock the threaded accessory, connecting the locking mechanism and the threaded accessory as a whole. An extended force-bearing rod of the locking mechanism extends the force point of the threaded accessory outward, changing the force position for disassembling and assembling the threaded accessory. A pry handle pries the sleeve transmission mechanism, causing the sleeve transmission mechanism and the locking mechanism to rotate as a whole. The locking mechanism drives the threaded accessory to rotate, thereby realizing the disassembly and assembly of the threaded accessory. Compared to existing disassembly and assembly tools such as wrenches, the entire device occupies less space. By moving the force point of the threaded accessory outward, it facilitates applying force to the threaded accessory, thus facilitating the disassembly and assembly of threaded accessories in limited positions, improving efficiency, and reducing labor intensity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the ship confined position threaded accessory disassembly and assembly device according to an embodiment of the present invention;

[0022] Figure 2 This is an enlarged schematic diagram of the ship localized position threaded accessory disassembly and assembly device according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the locking mechanism in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the sleeve transmission mechanism in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the pry handle in an embodiment of the present invention;

[0026] In the diagram, 1 is the locking mechanism; 11 is the locking body; 111 is the first locking nut; 112 is the second locking nut; 113 is the rotating lever; 12 is the first clamping plate; 13 is the second clamping plate; 2 is the force-bearing rod; 3 is the sleeve transmission mechanism; 31 is the sleeve; 32 is the arc plate; 321 is the pulley; 33 is the receiving block; 331 is the insertion hole; 4 is the pry handle; 41 is the first pry bar; 42 is the second pry bar; and 43 is the sleeve. Detailed Implementation

[0027] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0030] like Figure 1 - Figure 5As shown in the preferred embodiment of the present invention, a threaded fitting disassembly and assembly device for confined locations on ships is used for disassembling and assembling threaded fittings in confined locations such as tightly arranged pipelines and small operating spaces. The disassembly and assembly device includes a locking mechanism 1, a sleeve transmission mechanism 3, and a pry handle 4. The locking mechanism 1 is used to lock the threaded fitting, connecting it to the locking mechanism 1 as a whole. The threaded fitting can be a pipe threaded connector, nut fitting, bolt fitting, etc. Multiple force-bearing rods 2 are fixed to one side of the locking mechanism 1. The force-bearing rods 2 extend from one side of the locking mechanism 1 outwards, with their extension direction parallel to the central axis of the threaded fitting. The force-bearing rods 2 act as load-bearing components, shifting the force-bearing position of the threaded fitting outwards, thus avoiding the limitation of space at the threaded fitting location from affecting the application of force. The sleeve transmission mechanism 3... The device includes a sleeve 31 and an arc-shaped plate 32. The arc-shaped plate 32 is used to receive the pipe to which the threaded accessory belongs or the force-bearing rod 2. The sleeve 31 is fixed to one end of the arc-shaped plate 32 and is used to fit onto the force-bearing rod 2. A receiving block 33 is fixed to one end of the sleeve 31. The receiving block 33 has an insertion hole 331. When the sleeve 31 is inserted into the force-bearing rod 2, the arc-shaped opening of the arc-shaped plate 32 faces upward. The pry handle 4 is inserted into the insertion hole 331. Rotating the pry handle 4 causes the sleeve transmission mechanism 3 to rotate, so that the sleeve transmission mechanism 3 and the locking mechanism 1 drive the threaded accessory to rotate synchronously, thereby disassembling and assembling the threaded accessory. The force-bearing rod 2 fitted on the sleeve 31 and the force-bearing rod 2 supported by the arc plate 32 are different force-bearing rods 2. The sleeve 31 is fitted on the force-bearing rod 2, and the arc plate 32 supports the pipe or another force-bearing rod 2, so that the arc plate 32 can be used as a leverage point for the sleeve transmission mechanism 3. This prevents the sleeve 31 and the force-bearing rod 2 from rotating relative to each other when the sleeve 31 is pried, so that the sleeve 31 and the force-bearing rod 2 rotate as a whole, thereby causing the locking mechanism 1 to drive the threaded accessory to rotate.

[0031] This invention uses a locking mechanism 1 to lock the threaded accessory, connecting the locking mechanism 1 and the threaded accessory into a single unit. The force-bearing rod 2 extending from the locking mechanism 1 extends the force point of the threaded accessory outward, changing the force position for disassembling and assembling the threaded accessory. A pry handle 4 pries the sleeve transmission mechanism 3, causing the sleeve transmission mechanism 3 and the locking mechanism 1 to rotate as a whole. The locking mechanism 1 drives the threaded accessory to rotate, thereby realizing the disassembly and assembly of the threaded accessory. Compared to existing disassembly and assembly tools such as wrenches, the entire disassembly and assembly device occupies less space. By moving the force point of the threaded accessory outward, it is easier to apply force to the threaded accessory, thus facilitating the disassembly and assembly of threaded accessories in confined locations, improving efficiency, and reducing labor intensity.

[0032] like Figure 2 and Figure 3As shown, the locking mechanism 1 includes a locking body 11, a first clamping piece 12, and a second clamping piece 13. The first clamping piece 12 and the second clamping piece 13 are spaced apart on the locking body 11. The spacing between the first clamping piece 12 and the second clamping piece 13 is adjustable, and the spacing between the first clamping piece 12 and the second clamping piece 13 forms a clamping opening. This clamping opening is used to clamp threaded accessories. The adjustable spacing makes it suitable for clamping threaded accessories of different sizes and facilitates the clamping operation of the locking mechanism 1. The force-bearing rod 2 is fixed to the first clamping piece 12 or the second clamping piece 13. The sleeve 31 rotates synchronously with the force-bearing rod 2. The force-bearing rod 2 drives the first clamping piece 12 or the second clamping piece 13 to rotate, which in turn drives the locking body 11 to rotate, and also drives the threaded accessories between the first clamping piece 12 and the second clamping piece 13 to rotate. The threaded attachment is generally hexagonal. The first clamping piece 12 and the second clamping piece 13 are plate-shaped and parallel to each other. The surfaces of the first clamping piece 12 and the second clamping piece 13 are in surface contact with the threaded attachment, which makes the clamping of the threaded attachment by the first clamping piece 12 and the second clamping piece 13 more secure and prevents the threaded attachment from slipping out between the first clamping piece 12 and the second clamping piece 13 when the first clamping piece 12 and the second clamping piece 13 rotate with the locking mechanism 1.

[0033] In this embodiment, the locking body 11 is a bidirectional locking screw. The outer circumference of the bidirectional locking screw is threaded, and the threads on both sides of the bidirectional locking screw rotate in opposite directions. One end of the bidirectional locking screw is threaded with a first locking nut 111, and the other end is threaded with a second locking nut 112. The first clamping piece 12 is fixed to the first locking nut 111, and the second clamping piece 13 is fixed to the second locking nut 112. Rotating the bidirectional locking screw causes the first locking nut 111 and the second locking nut 112 to move towards or away from each other, adjusting the gap between the first clamping piece 12 and the second clamping piece 13, thereby clamping or releasing the threaded attachment. Setting the locking body in the structure of a bidirectional locking screw, a first locking nut, and a second locking nut not only facilitates operation but also ensures the overall strength of the locking body.

[0034] The first clamping plate and the second clamping plate are arranged in parallel, and both the first clamping plate and the second clamping plate are perpendicular to the central axis of the bidirectional locking screw.

[0035] To facilitate adjusting the gap between the two clamping plates by rotating the locking body 11, a rotating lever 113 is fixed at each end of the locking body 11. Furthermore, the rotating lever 113 is arranged perpendicularly to the locking body 11, and the locking body 11 is vertically fixed to the middle of the rotating lever 113 to facilitate balanced force application.

[0036] Optionally, the length of the bidirectional locking screw is 150mm and the diameter is 8mm; the first locking nut 111 and the second locking nut 112 are both M8 nuts; the first clamping plate 12 and the second clamping plate 13 are both steel plates with a length of 80mm, a width of 10mm and a thickness of 5mm; the outer diameter of the force-bearing rod 2 is 8mm; and the length of the rotating hand lever 113 is 50mm and the diameter is 8mm.

[0037] In this embodiment, there are four force-bearing rods 2. Two of the force-bearing rods 2 are arranged vertically at intervals on one side of the first clamping plate 12, one force-bearing rod 2 can be fixed to the outer wall of the first locking nut 111, and one force-bearing rod 2 is fixed to the bottom of the first clamping plate 12. The other two force-bearing rods 2 are arranged vertically at intervals on one side of the second clamping plate 13, one force-bearing rod 2 is fixed to the outer wall of the second locking nut 112, and one force-bearing rod 2 is fixed to the bottom of the second clamping plate 13. The four force-bearing rods 2 are arranged in a quadrilateral shape, and multiple force-bearing rods 2 are arranged on the same side of the locking mechanism 1, which facilitates the adjustment of the sleeve 31 position. When the sleeve 31 is fitted onto a force-bearing rod 2, and the locking mechanism 1 is rotated synchronously to its limit by prying the sleeve 31, the sleeve 31 can be pulled out from the force-bearing rod 2 and reinserted into another force-bearing rod 2. The sleeve 31 can then be pried again to drive the locking mechanism 1 and the threaded accessory to rotate, which is convenient for operation and avoids the prying of the pry handle 4 being restricted by space.

[0038] like Figure 4 As shown, a plurality of pulleys 321 are installed on the arc plate 32. The central axis of the pulleys 321 is parallel to the central axis of the sleeve 31. The rim surface of the pulleys 321 protrudes from the inner plate surface of the arc plate 32. The outer periphery of the pulleys 321 is covered with a rubber layer to reduce damage to the pipe surface of the pipe to which the threaded accessories belong, and to make the sleeve 31, the force rod 2, etc. rotate smoothly.

[0039] Furthermore, the plurality of pulleys 321 are spaced apart along the length direction of the arc-shaped plate 32.

[0040] like Figure 4 As shown, the receiving block 33 is cylindrical and coaxially arranged with the sleeve 31. The insertion hole 331 is formed on the side wall of the receiving block 33, and the central axis of the insertion hole 331 is perpendicular to the central axis of the sleeve 31. The insertion hole 331 extends radially along the cylindrical receiving block 33, so that when the pry handle 4 is inserted into the insertion hole 331 to pry the sleeve 31, the direction of the force applied to the sleeve 31 is perpendicular to the central axis of the sleeve 31, causing the sleeve 31 to rotate. Furthermore, there are multiple insertion holes 331, which are spaced apart along the circumference of the receiving block 33, allowing the pry handle 4 to be inserted into the insertion hole 331 according to actual usage requirements.

[0041] Optionally, the sleeve 31 has an outer diameter of 16mm, an inner diameter of 10mm, and a length of 50mm; the arc plate 32 is a semi-circular plate with a thickness of 4mm, a diameter of 100mm, and a width of 50mm; the socket 331 has a diameter of 10mm, and the receiving block 33 has a diameter of 48mm and a thickness of 28mm.

[0042] like Figure 5 As shown, the pry bar 4 includes a first pry bar 41 and a second pry bar 42. One end of the first pry bar 41 is provided with a sleeve 43, and the second pry bar 42 is detachably installed in the sleeve 43. The first pry bar 41 and the second pry bar 42 can be used as a unit or independently.

[0043] Optionally, the diameter of the first pry bar 41 and the second pry bar 42 is 8mm, the length of the first pry bar 41 is 300mm, the length of the second pry bar 42 is 600mm, and the outer diameter of the sleeve 43 is 14mm, the inner diameter is 10mm, and the length is 40mm.

[0044] The working process of this invention is as follows:

[0045] When assembling or disassembling threaded accessories, insert the threaded accessory between the first clamping piece 12 and the second clamping piece 13, and adjust the interval between the first clamping piece 12 and the second clamping piece 13 so that the locking mechanism 1 locks the threaded accessory. Insert the sleeve 31 into the force-bearing rod 2, the arc plate 32 supports the pipe to which the threaded accessory belongs, insert the pry handle 4 into the insertion hole 331, and rotate the pry handle 4. The sleeve 31, the force-bearing rod 2, and the locking mechanism 1 rotate as a whole, and the locking mechanism 1 drives the threaded accessory to rotate, thereby assembling or disassembling the threaded accessory. Adjusting the interval between the first clamping piece 12 and the second clamping piece 13 can separate the threaded accessory from the locking mechanism 1, making it easier to remove the locking mechanism 1. When the rotation space of the pry handle 4 is limited, pull the sleeve 31 out of the force-bearing rod 2, reinsert the sleeve 31 into another force-bearing rod 2 at a suitable position, and rotate the pry handle 4 again so that the sleeve 31, the force-bearing rod 2, and the locking mechanism 1 rotate, driving the threaded accessory to continue to rotate.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A device for disassembling and assembling threaded accessories in restricted positions on ships, characterized in that, include: A locking mechanism is used to lock threaded accessories. Multiple force-bearing rods are fixed on one side of the locking mechanism. The force-bearing rods extend from one side of the locking mechanism to the outside of the locking mechanism, and the extension direction of the force-bearing rods is parallel to the central axis of the threaded accessories. A sleeve transmission mechanism, comprising a sleeve and an arc plate, wherein the arc plate is used to receive the pipe to which the threaded accessory belongs or the force-bearing rod, the sleeve is fixed to one end of the arc plate, the sleeve is used to be sleeved on the force-bearing rod, and a receiving block is fixed to one end of the sleeve, the receiving block having an insertion hole. A pry handle, which is inserted into the insertion hole; Rotating the pry handle causes the sleeve drive mechanism to rotate, which in turn causes the sleeve drive mechanism and the locking mechanism to drive the threaded accessory to rotate synchronously.

2. The ship confined position threaded accessory disassembly and assembly device according to claim 1, characterized in that, The locking mechanism includes a locking body, a first clamping piece, and a second clamping piece. The first clamping piece and the second clamping piece are spaced apart on the locking body. The spacing between the first clamping piece and the second clamping piece is adjustable. The force-bearing rod is fixed to the first clamping piece or the second clamping piece.

3. The ship confined position threaded accessory disassembly and assembly device according to claim 2, characterized in that, The locking body is a bidirectional locking screw. One end of the bidirectional locking screw is threaded with a first locking nut, and the other end of the bidirectional locking screw is threaded with a second locking nut. The first clamping piece is fixed to the first locking nut, and the second clamping piece is fixed to the second locking nut.

4. The ship confined position threaded accessory disassembly and assembly device according to claim 3, characterized in that, A rotating lever is fixed at each end of the locking body.

5. The ship confined position threaded accessory disassembly and assembly device according to claim 2, characterized in that, The force-bearing rods are four in number, with two of them arranged vertically at intervals on one side of the first clamping plate, and the other two arranged vertically at intervals on one side of the second clamping plate.

6. The ship confined position threaded accessory disassembly and assembly device according to claim 1, characterized in that, Multiple pulleys are installed on the arc-shaped plate. The central axis of the pulleys is parallel to the central axis of the sleeve. The rim of the pulleys protrudes from the inner surface of the arc-shaped plate, and the outer periphery of the pulleys is covered with a rubber layer.

7. The ship confined position threaded accessory disassembly and assembly device according to claim 6, characterized in that, The pulleys are spaced apart along the length of the arc-shaped plate.

8. The ship localized position threaded accessory disassembly and assembly device according to claim 1, characterized in that, The receiving block is cylindrical and coaxially arranged with the sleeve. The insertion hole is opened on the side wall of the receiving block, and the central axis of the insertion hole is perpendicular to the central axis of the sleeve.

9. The ship localized position threaded accessory disassembly and assembly device according to claim 8, characterized in that, The socket has multiple holes, which are spaced apart along the circumferential direction of the receiving block.

10. The ship confined position threaded accessory disassembly and assembly device according to claim 1, characterized in that, The pry bar includes a first pry bar and a second pry bar, one end of the first pry bar is provided with a sleeve, and the second pry bar is detachably installed in the sleeve.

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