A ship side rail support device

Abstract

The present application relates to the technical fields of shipbuilding, and especially relates to a ship side line frame supporting device. The present application provides a ship side line frame supporting device which can automatically expand and contract, and quickly position and stabilize the pipeline. The ship side line frame supporting device comprises a base, connecting frames, a supporting plate and a turnover mechanism, etc. The left and right sides of the base are connected with the connecting frames through bolts. The upper parts of the connecting frames are connected with the supporting plate. The base is provided with the turnover mechanism. The double-shaft motor output shaft drives the winding wheel to rotate, so that the pull ropes pull the turnover plates, and then the turnover plates are turned outward to open. This facilitates the operator to quickly install and place the pipeline. After the placement is completed, the double-shaft motor output shaft is controlled to rotate reversely, so that the turnover plates are turned inward to reset and position and stabilize the pipeline. This improves the operation efficiency and makes the operation more convenient.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a ship side frame support device. Background Technology

[0002] During shipbuilding, kinetic energy, including wind, water, electricity, oxygen, and acetylene, is typically used for construction. During construction, shipboard support structures are used to support and place the pipelines required for construction.

[0003] Patent publication number CN115009468A describes a ship's side wire frame support device and a ship. The support device includes two support beam structures, a sleeve double-tube structure, a first connecting structure, and a second connecting structure. In the sleeve double-tube structure, the two ends of the first circular tube are connected to the two support beam structures, each with a first width. The second circular tube is rotatably fitted around the outer circumference of the first circular tube. The two ends of the first connecting structure are connected to the two support beam structures and are parallel to the sleeve double-tube structure. One end of the second connecting structure is connected to one end of the first connecting structure connected to the two support beam structures, used to fix the free edge position of the ship's deck side plate. While this device can solve the safety protection problem of kinetic energy pipelines passing through corner positions during ship construction and prevent leakage, it is difficult to quickly limit and stabilize the pipelines or conduits. During pipeline or conduit movement, severe shaking can easily occur, leading to detachment. Furthermore, the operation lacks automation, posing certain operational risks.

[0004] Therefore, in order to address the above problems, a shipboard wire frame support device that can automatically deploy and retract, and quickly limit and stabilize the pipeline is being developed. Summary of the Invention

[0005] To overcome the shortcomings of existing devices, such as difficulty in quickly stabilizing pipelines or conduits, the tendency for pipelines or conduits to shake violently during movement, leading to detachment, and the lack of automation in operation, which poses certain operational risks, this invention provides a shipboard sideline support device that can automatically deploy and retract to quickly stabilize and limit pipelines.

[0006] The technical solution of the present invention is: a ship side wire frame support device, comprising a base, a connecting frame, a support plate, and a flipping mechanism. Connecting frames are bolted to both sides of the base, and a support plate is connected between the upper parts of the connecting frames. A flipping mechanism is provided on the base, comprising a winding wheel, a dual-shaft motor, a guide wheel, a pull rope, a flipping plate, a connecting piece, a first torsion spring, and a support frame. Two symmetrical winding wheels are rotatably connected to both sides of the base. A dual-shaft motor is bolted to the middle of both sides of the base, and the output shafts of the dual-shaft motors are connected to adjacent winding wheels. Two symmetrical guide wheels are rotatably connected to the connecting frame. Two support frames are bolted to the lower part of the connecting frame. A connecting piece is rotatably connected between adjacent support frames. A flipping plate is connected to the inner side of the connecting piece. Two first torsion springs are connected between the connecting piece and adjacent support frames. Two pull ropes wound on the guide wheels are connected between the flipping plate and the winding wheel on the same side.

[0007] As a preferred embodiment of the present invention, it further includes a guiding mechanism, which includes a first fixed seat, a first connecting seat, a lifting frame, a guide wheel, a servo motor, a lead screw, and a first connecting plate. The first fixed seat is bolted to the middle position of the outer side of the flip plate. The first connecting seat is connected to the front and rear sides of the first fixed seat. The lifting frame is slidably connected to the first connecting seat. The lower part of the lifting frame is rotatably connected to the guide wheel. The servo motor is bolted to the middle position of the top of the first fixed seat. The lead screw is connected to the output shaft of the servo motor. The tops of the adjacent first connecting seats are connected to the first connecting plate. The lead screw is threadedly connected to the adjacent first connecting plate.

[0008] As a preferred embodiment of the present invention, it further includes a positioning mechanism, which includes a second connecting seat, a fixed plate, a positioning frame, a first spring, a second connecting plate, and a flipping component. The upper part of the support frame is bolted to the second connecting seat, and the outer side of the second connecting seat is bolted to the fixed plate. The fixed plate is slidably connected to the positioning frame, and the positioning frame is connected to the adjacent fixed plate. The outer sides of the front and rear adjacent positioning frames are connected to the second connecting plate, and the upper and lower sides of the connecting component are bolted to the flipping component for pushing and squeezing the adjacent second connecting plate.

[0009] As a preferred embodiment of the present invention, it further includes a damage prevention mechanism, which includes a fixed frame, a sliding frame, damage prevention wheels, a guide plate, a sliding rod frame, and a second spring. Fixed frames are connected to the front and rear sides of the top of the base. Sliding frames are slidably connected to the left and right sides of the fixed frame. Guide plates are bolted to the left and right sides of the fixed frame. Sliding rod frames are slidably connected to the adjacent guide plates on the inner side of the upper part of the sliding frame. A second spring is connected between the sliding rod frame and the adjacent guide plate. Two damage prevention wheels are rotatably connected between the left and right adjacent sliding frames.

[0010] As a preferred technical solution of the present invention, it further includes a limiting mechanism, which includes a second fixed seat, a limiting plate and a second torsion spring. The front side of the front positioning frame and the rear side of the rear positioning frame are each connected by bolts to two symmetrical second fixed seats. The two adjacent second fixed seats are rotatably connected to the limiting plate, and the limiting plate and the adjacent second fixed seat are each connected by two upper and lower second torsion springs.

[0011] As a preferred embodiment of the present invention, it further includes an assist mechanism, which includes a third fixed seat and an assist wheel. Four third fixed seats are bolted to the top of the support plate, and an assist wheel is rotatably connected to each of the third fixed seats.

[0012] As a preferred embodiment of the present invention, the inner side of the flip plate is an arc surface structure.

[0013] As a preferred embodiment of the present invention, the inner side of the positioning frame is connected with rubber pads to prevent wear on the pipe.

[0014] Beneficial effects: 1. The present invention drives the winding wheel to rotate through the output shaft of the dual-axis motor, so that the pull rope pulls the flip plate, and the flip plate flips outward to open, which makes it easy for operators to quickly install and place the pipe. After the placement is completed, the output shaft of the dual-axis motor is controlled to rotate in the opposite direction, so that the flip plate flips inward to reset and limits and stabilizes the pipe, improving the operating efficiency and making the operation more convenient.

[0015] 2. This invention controls the output shaft of the servo motor to rotate, thereby causing the lifting frame to drive the guide wheels to move closer to each other, so that the guide wheels can contact the outer wall of the pipe. Then, during the movement of the pipe, the rotation of the guide wheels assists the pipe, making the pipe movement easier and more convenient.

[0016] 3. The present invention uses a flip plate to flip outward, which drives the connecting parts to flip synchronously. This allows the flip plates to push and squeeze the adjacent second connecting plates, causing the positioning frames to slide inward and move closer together. As a result, when the operator places the pipe, the pipe can be placed in the center position, avoiding positional deviation.

[0017] 4. The present invention supports the pipeline with anti-damage wheels. Then, during the movement of the pipeline, the rotation of the anti-damage wheels guides the pipeline to move further, avoiding the bottom of the pipeline from directly contacting the support plate and causing severe friction, which would damage the bottom of the pipeline. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the flipping mechanism of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the guiding mechanism of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the positioning mechanism of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the damage prevention mechanism of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the limiting mechanism of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the assist mechanism of the present invention.

[0026] Wherein: 1-base, 2-connecting frame, 3-support plate, 4-flipping mechanism, 41-winding wheel, 42-dual-axis motor, 43-guide wheel, 44-pull rope, 45-flipping plate, 46-connector, 47-first torsion spring, 48-support frame, 5-guide mechanism, 51-first fixed seat, 52-first connecting seat, 53-lifting frame, 54-guide wheel, 55-servo motor, 56-lead screw, 57-first connecting plate, 6-positioning mechanism 61-Second connecting seat, 62-Fixing plate, 63-Positioning frame, 64-First spring, 65-Second connecting plate, 66-Flipping part, 7-Damage prevention mechanism, 71-Fixing frame, 72-Sliding frame, 73-Damage prevention wheel, 74-Guide plate, 75-Sliding rod frame, 76-Second spring, 8-Limiting mechanism, 81-Second fixed seat, 82-Limiting plate, 83-Second torsion spring, 9-Assisting mechanism, 91-Third fixed seat, 92-Assisting wheel. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0028] A ship side wire frame support device, such as Figure 1 and Figure 2 As shown, it includes a base 1, a connecting frame 2, a support plate 3, and a flipping mechanism 4. The connecting frame 2 is bolted to both sides of the base 1. The support plate 3 for supporting the ship's pipeline is connected between the upper parts of the connecting frame 2. The base 1 is equipped with a flipping mechanism 4 for facilitating the quick placement of the pipeline and for limiting and stabilizing it.

[0029] It should be noted that, in order to facilitate the placement and installation of ship pipelines, this device can be used to support and place ship pipelines. First, the base 1 is installed on the side of the ship, then the tilting mechanism 4 is unfolded, and then the operator places the pipeline on the support plate 3. After placement, the tilting mechanism 4 is tilted and closed to install and fix the pipeline, while also limiting and stabilizing it.

[0030] like Figure 1 and Figure 3 As shown, the flipping mechanism 4 includes a winding wheel 41, a dual-axis motor 42, a guide wheel 43, a pull rope 44, a flipping plate 45, a connecting piece 46, a first torsion spring 47, and a support frame 48. Two symmetrical winding wheels 41 are rotatably connected to the left and right sides of the base 1. A dual-axis motor 42 is bolted to the middle of both sides of the base 1. The output shafts of the dual-axis motor 42 are oriented front-to-back, and each output shaft is connected to an adjacent winding wheel 41. Two symmetrical guide wheels 43 are rotatably connected to the connecting frame 2. 3. The lower part of the connecting frame 2 is bolted to two support frames 48, and the adjacent support frames 48 are rotatably connected to a connector 46. The inner side of the connector 46 is connected to a flip plate 45 for limiting and stabilizing the pipeline. The inner side of the flip plate 45 is an arc surface structure, which can fit the surface of the pipeline for limiting. The connector 46 and the adjacent support frame 48 are connected to two first torsion springs 47. The flip plate 45 and the winding wheel 41 on the same side are connected to two pull ropes 44 wound on the guide wheel 43.

[0031] It should be noted that before installing the pipe, the output shaft of the dual-axis motor 42 must first be controlled to rotate, so that all the winding wheels 41 start to rotate and wind up the pull rope 44. As the pull rope 44 is wound up by the adjacent winding wheels 41, the pull rope 44 will continuously wrap around the corresponding winding wheels 41. At the same time, under the guidance of the guide wheel 43, the flip plate 45 is stably pulled to flip and unfold outward. When the flip plate 45 is pulled, the connecting piece 46 will rotate outward around the top of the support frame 48 as the axis, and the first torsion spring 47 will be deformed by force. After the flip plate 45 is fully flipped open, the dual-axis motor 42 is turned off. Then, the pipe to be installed is placed on the support plate 3. After placement, the output shaft of the dual-axis motor 42 is controlled to start rotating in the opposite direction, so that the winding... All wheels 41 begin to rotate in the opposite direction, thereby releasing all pull ropes 44. As the pull ropes 44 are released, the flipping plates 45 are no longer pulled by the pull ropes 44. Under the action of the first torsion spring 47, the connecting piece 46 will drive the flipping plates 45 to rotate inward and reset, thus forming a closed state with the support plate 3 to limit and stabilize the pipeline. In summary, by driving the winding wheel 41 to rotate through the output shaft of the dual-axis motor 42, the pull ropes 44 pull the flipping plates 45, thereby causing the flipping plates 45 to flip outward and open, making it convenient for operators to quickly install and place the pipeline. After placement, the output shaft of the dual-axis motor 42 is controlled to rotate in the opposite direction, thereby causing the flipping plates 45 to flip inward and reset, limiting and stabilizing the pipeline, improving operating efficiency and making operation more convenient.

[0032] like Figure 1 and Figure 4 As shown, it also includes a guide mechanism 5, which includes a first fixed seat 51, a first connecting seat 52, a lifting frame 53, a guide wheel 54, a servo motor 55, a lead screw 56, and a first connecting plate 57. The first fixed seat 51 is bolted to the middle position of the outer side of the flip plate 45. The first connecting seat 52 is connected to the front and rear sides of the first fixed seat 51. The lifting frame 53 is slidably connected to the first connecting seat 52. The lower part of the lifting frame 53 is rotatably connected to the guide wheel 54 for guiding the movement of the pipeline. The servo motor 55 is bolted to the middle position of the top of the first fixed seat 51. The output shaft of the servo motor 55 is facing upward. The lead screw 56 is connected to the output shaft of the servo motor 55. The top of the first connecting seat 52 adjacent to each other is connected to the first connecting plate 57. The lead screw 56 is threadedly connected to the adjacent first connecting plate 57.

[0033] It should be noted that after the pipeline is installed, sometimes operators need to drag and pull the pipeline to move it. Before moving the pipeline, the servo motor 55 can be started. The output shaft of the servo motor 55 starts to rotate, which causes the lead screw 56 to rotate. As the lead screw 56 rotates, the connecting plates move towards each other, causing the corresponding lifting frames 53 to slide towards each other. This causes the guide wheels 54 to move synchronously and contact the pipeline. After the guide wheels 54 contact the pipeline, the servo motor 55 is turned off. When dragging the pipeline, the guide wheels 54 will rotate due to the friction generated by contact with the pipeline, providing auxiliary guidance during the pipeline movement and reducing the friction encountered during the pipeline movement, making the pipeline movement easier. In summary, by controlling the rotation of the output shaft of the servo motor 55, the lifting frames 53 drive the guide wheels 54 to move closer together, allowing the guide wheels 54 to contact the outer wall of the pipeline. Then, during the pipeline movement, the rotation of the guide wheels 54 assists the pipeline movement, making the pipeline movement easier and more convenient.

[0034] like Figure 1 and Figure 5 As shown, it also includes a positioning mechanism 6, which includes a second connecting seat 61, a fixing plate 62, a positioning frame 63, a first spring 64, a second connecting plate 65, and a flipping component 66. The upper part of the support frame 48 is bolted to the second connecting seat 61, and the outer side of the second connecting seat 61 is bolted to the fixing plate 62. The fixing plate 62 is slidably connected to the positioning frame 63 for center positioning of the pipeline. The inner side of the positioning frame 63 is connected to a rubber pad to prevent wear on the pipeline. The positioning frame 63 and the adjacent fixing plate 62 are connected to the first spring 64 for reset buffering. The outer sides of the front and rear adjacent positioning frames 63 are connected to the second connecting plate 65. The upper and lower sides of the connecting component 46 are bolted to the flipping component 66 for pushing and squeezing the adjacent second connecting plate 65.

[0035] It should be noted that as the flipping plates 45 are pulled outward by the ropes 44, the connecting pieces 46 will also flip synchronously, causing the flipping pieces 66 to rotate synchronously. As the flipping pieces 66 rotate downward, their lower sides will press and push against the upper sides of the adjacent second connecting plates 65, causing the second connecting pieces 46 to drive the adjacent positioning frames 63 to slide inward along the corresponding fixed plates 62. The first springs 64 are stretched. After the positioning frames 63 move to their limit positions, the operator can place the pipe between the positioning frames 63, thus ensuring the pipe is centered and preventing misalignment during placement. The offset affects the installation operation. After the pipe is placed, as the flip plate 45 rotates inward to reset, the connecting piece 46 will drive the adjacent flip piece 66 to flip upward to reset, so that the second connecting plate 65 is no longer squeezed. Then, under the action of the first spring 64, the positioning frame 63 will slide outward along the fixed plate 62 to reset. In summary, by flipping the flip plate 45 outward to drive the connecting piece 46 to flip synchronously, the flip piece 66 can push and squeeze the adjacent second connecting plate 65, so that the positioning frame 63 slides inward to move closer. Thus, when the operator places the pipe, the pipe can be placed in the center position, avoiding positional offset.

[0036] like Figure 1 and Figure 6 As shown, it also includes a damage prevention mechanism 7, which includes a fixed frame 71, a sliding frame 72, damage prevention wheels 73, a guide plate 74, a sliding rod frame 75, and a second spring 76. The fixed frame 71 is connected to the front and rear sides of the top of the base 1. The sliding frame 72 is slidably connected to the left and right sides of the fixed frame 71. The sliding frame 72 slides up and down on the adjacent fixed frame 71. The guide plate 74 is bolted to the left and right sides of the fixed frame 71. The sliding rod frame 75 is slidably connected to the adjacent guide plate 74 on the upper inner side of the sliding frame 72. The second spring 76 is connected between the sliding rod frame 75 and the adjacent guide plate 74. The two front and rear damage prevention wheels 73 are rotatably connected between the left and right adjacent sliding frames 72 for supporting and guiding the bottom of the pipe.

[0037] It should be noted that when the pipe is normally placed on the support plate 3, the anti-damage wheels 73 will first contact the bottom of the pipe. At this time, the anti-damage wheels 73 will be squeezed by the weight of the pipe, causing the sliding frame 72 to drive the sliding rod frame 75 to slide downward along the adjacent guide plate 74. The second spring 76 will be compressed, thus buffering the weight of the pipe. Afterwards, during the movement of the pipe, the anti-damage wheels 73 guide the movement of the pipe, preventing the bottom of the pipe from directly contacting the support plate 3 and causing severe friction, which could damage the bottom of the pipe.

[0038] like Figure 1 and Figure 7 As shown, it also includes a limiting mechanism 8, which includes a second fixed seat 81, a limiting plate 82, and a second torsion spring 83. The front side of the positioning frame 63 and the rear side of the positioning frame 63 are both connected by bolts to two symmetrical second fixed seats 81. The two adjacent second fixed seats 81 are rotatably connected to a limiting plate 82 for limiting the left and right movement of the pipeline. The limiting plate 82 and the adjacent second fixed seat 81 are connected by two upper and lower second torsion springs 83.

[0039] It should be noted that during the movement of the pipeline, the left and right movement of the pipeline is blocked and restricted by the cooperation between the limiting plate 82 and the second torsion spring 83, thereby ensuring that the pipeline can move in a straight line during the movement, avoiding the pipeline from swaying left and right and causing collisions, and further improving the stability of the pipeline during the movement.

[0040] like Figure 1 and Figure 8 As shown, it also includes an assist mechanism 9, which includes a third fixed seat 91 and an assist wheel 92. The top of the support plate 3 is bolted with four third fixed seats 91, and each third fixed seat 91 is rotatably connected with an assist wheel 92 for supporting the pipeline.

[0041] It should be noted that when installing the pipe, the pipe can be placed directly between the tops of the assist wheels 92, thereby avoiding direct contact between the pipe and the support plate 3, which would cause wear at the contact point between the pipe and the support plate 3.

[0042] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A ship side frame support device, comprising a base (1), connecting frames (2), support plates (3), and a flipping mechanism (4), wherein the base (1) is bolted to both sides of the connecting frames (2), and the upper parts of the connecting frames (2) are connected to the support plates (3), and the base (1) is provided with a flipping mechanism (4), characterized in that, The flipping mechanism (4) includes a winding wheel (41), a dual-axis motor (42), a guide wheel (43), a pull rope (44), a flipping plate (45), a connector (46), a first torsion spring (47), and a support frame (48). Two winding wheels (41) are rotatably connected to the left and right sides of the base (1) in a symmetrical manner. A dual-axis motor (42) is bolted to the middle position of the left and right sides of the base (1). The output shafts of the dual-axis motors (42) are connected to the adjacent winding wheels (41). The connecting frame (2) is rotatably connected to the winding wheels (41). There are two symmetrical guide wheels (43) at the front and back. The lower part of the connecting frame (2) is connected to two support frames (48) at the front and back by bolts. The adjacent support frames (48) at the front and back are rotatably connected by a connector (46). The inner side of the connector (46) is connected to a flip plate (45). The connector (46) and the adjacent support frame (48) are connected by two first torsion springs (47) at the front and back. The flip plate (45) and the winding wheel (41) on the same side are connected by two pull ropes (44) wound on the guide wheel (43). It also includes a guide mechanism (5), which includes a first fixed seat (51), a first connecting seat (52), a lifting frame (53), a guide wheel (54), a servo motor (55), a lead screw (56), and a first connecting plate (57). The first fixed seat (51) is bolted to the middle position of the outer side of the flip plate (45). The first connecting seat (52) is connected to the front and rear sides of the first fixed seat (51). The lifting frame (53) is slidably connected to the first connecting seat (52). The guide wheel (54) is rotatably connected to the lower part of the lifting frame (53). The servo motor (55) is bolted to the middle position of the top of the first fixed seat (51). The lead screw (56) is connected to the output shaft of the servo motor (55). The top of the first connecting seats (52) adjacent to each other is connected to the first connecting plate (57). The lead screw (56) is threadedly connected to the adjacent first connecting plate (57). It also includes a positioning mechanism (6), which includes a second connecting seat (61), a fixing plate (62), a positioning frame (63), a first spring (64), a second connecting plate (65), and a flipping part (66). The upper part of the support frame (48) is bolted to the second connecting seat (61), and the outer side of the second connecting seat (61) is bolted to the fixing plate (62). The fixing plate (62) is slidably connected to the positioning frame (63), and the positioning frame (63) is connected to the adjacent fixing plate (62) with the first spring (64). The outer sides of the front and rear adjacent positioning frames (63) are connected to the second connecting plate (65). The upper and lower sides of the connecting part (46) are bolted to the flipping part (66) for pushing and squeezing the adjacent second connecting plate (65). It also includes a damage prevention mechanism (7), which includes a fixed frame (71), a sliding frame (72), a damage prevention wheel (73), a guide plate (74), a sliding rod frame (75), and a second spring (76). The base (1) is connected to the fixed frame (71) on both the front and rear sides. The fixed frame (71) is slidably connected to the sliding frame (72) on both the left and right sides. The fixed frame (71) is connected to the guide plate (74) on both the left and right sides by bolts. The sliding frame (72) is connected to the sliding rod frame (75) on the upper inner side, which is slidably connected to the adjacent guide plate (74). The sliding rod frame (75) is connected to the adjacent guide plate (74) with a second spring (76). The left and right adjacent sliding frames (72) are rotatably connected to the front and rear damage prevention wheels (73). It also includes a limiting mechanism (8), which includes a second fixed seat (81), a limiting plate (82), and a second torsion spring (83). The front and rear positioning frames (63) are connected by bolts to two symmetrical second fixed seats (81). The two adjacent second fixed seats (81) are rotatably connected to the limiting plate (82). The limiting plate (82) and the adjacent second fixed seat (81) are connected by two upper and lower second torsion springs (83).

2. The ship hull side frame support device according to claim 1, characterized in that, It also includes a power-assisting mechanism (9), which includes a third fixed seat (91) and a power-assisting wheel (92). The top of the support plate (3) is connected to four third fixed seats (91) by bolts, and each third fixed seat (91) is rotatably connected to a power-assisting wheel (92).

3. A ship hull side wire frame support device according to claim 2, characterized in that, The inner side of the flip plate (45) is a curved surface structure.

4. A ship hull side wire frame support device according to claim 3, characterized in that, The inner side of the positioning frame (63) is connected with rubber pads to prevent wear on the pipe.

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