Reversible ship flagpole device

Abstract

The utility model relates to the technical field of ship flagpoles, and discloses a collapsible ship flagpole device, which comprises a first support, a second support, a flagpole main body, a retraction driver and a righting structure, the first support and the second support are arranged on a ship body at an interval, and one end of the flagpole main body is hinged with the first support; the flagpole main body is further provided with a connecting part, the connecting part is arranged at an interval relative to the first support, one end of the folding and unfolding driver is hinged to the second support, and the other end of the folding and unfolding driver is hinged to the connecting part; the hinge axis of the first support, the hinge axis of the second support and the hinge axis of the connecting part are parallel to one another; the righting structure is fixedly installed on the ship body, and the lower portion of the righting structure is provided with an avoiding space used for containing the flagpole body and / or the retracting and releasing action of the retracting and releasing driver. A limiting plate is fixed to the side, corresponding to the righting structure, of the flagpole body, and a fastener is detachably connected between the upper portion of the righting structure and the limiting plate so as to fix the flagpole body to be in a vertical state.

Description

Technical Field

[0001] The utility model relates to the technical field of ship flagpoles, in particular to a retractable ship flagpole device. Background Art

[0002] With the improvement of the technical level of ship equipment, shipowners have put forward higher requirements on the safety and automation of bow and stern flagpole equipment.

[0003] According to the ship industry standard CB22-84 "Steel Bow and Stern Flagpoles", the bow and stern flagpoles of a certain series of ships are designed with a steel main flagpole, two auxiliary supporting steel pipes and three sets of movable hinges. The main flagpole and the auxiliary supporting steel pipes are respectively connected to the movable hinges.

[0004] When lowering the flagpole, four operators first loosen the fastening bolts of the movable hinges on the left and right sides, and lift the two auxiliary support steel pipes; then eight operators stand under the main flagpole and cooperate along the length of the ship to rotate the main flagpole toward the stern with the movable hinge as the axis. Similarly, when erecting the main flagpole, the above operators still need to cooperate to complete the erection operation. During manual retraction and release operations, the efficiency of multiple operators working together is low, the space at the bow or stern where the main flagpole is located is small, and there are safety hazards in strong winds and high waves.

[0005] Although the prior art has a design in which a driver drives the main flagpole to be lowered and erected, the main flagpole is easily affected by wind and waves and tilts sideways when erected, and it is impossible to ensure that the flagpole device meets the requirements of both automated retraction and erection stability. Utility Model Content

[0006] The technical problem to be solved by the utility model is that in the prior art, the main flagpole is driven by a driver to retract and extend, and when the main flagpole is erected, it is easily affected by wind and waves and tilts sideways, and it is impossible to ensure that the flagpole device meets the requirements of automatic retraction and extension and erection stability.

[0007] In order to solve the above technical problems, the utility model provides a technical solution for a retractable ship flagpole device:

[0008] The retractable ship flagpole device comprises a first support, a second support, a flagpole body, a retracting and releasing driver and a righting structure, wherein the first support and the second support are arranged on the hull at intervals, and one end of the flagpole body is hingedly connected to the first support;

[0009] The flagpole body is also provided with a connecting portion, which is spaced apart from the first support, one end of the retractable driver is hingedly connected to the second support, and the other end of the retractable driver is hingedly connected to the connecting portion;

[0010] The hinge axis of the first support, the hinge axis of the second support, and the hinge axis of the connecting portion are arranged parallel to each other;

[0011] The righting structure is fixedly mounted on the hull, and a relief space is provided at the lower part of the righting structure for accommodating the retracting and extending action of the flagpole body and / or the retracting and extending drive;

[0012] A limiting plate is fixedly connected to the flagpole body at one side corresponding to the straightening structure, and a fastener is detachably connected between the upper part of the straightening structure and the limiting plate to fix the flagpole body to maintain an erected state.

[0013] Furthermore, through holes are respectively provided at the upper portion of the straightening structure and the end of the limiting plate. When the flagpole body is erected, the through hole of the straightening structure corresponds to the through hole of the limiting plate, and the fastener is installed and connected in the two through holes.

[0014] Furthermore, the limiting plate is perpendicular to the length direction of the flagpole body and extends toward the straightening structure, the through hole of the limiting plate is an internal threaded hole, the fastener is a fastening bolt, and the fastening bolt is threadedly matched with the through hole of the limiting plate.

[0015] Furthermore, the limiting plate is also provided with an inner concave edge, the inner concave edge is matched with the outer wall of the flagpole body in a concave-convex manner, and the inner concave edge is fixed to the outer wall of the flagpole body by welding.

[0016] Furthermore, the height of the straightening structure is any size between 300 mm and 600 mm, and when the flagpole body is erected, the limit plate is located on the upper side of the straightening structure.

[0017] Furthermore, the straightening structure is an inverted U-shaped frame, which includes two side panels and an upper cross plate. The two side panels are respectively arranged on the outside of the interval position between the first support and the second support, and the upper cross plate is fixedly connected between the upper parts of the two side panels.

[0018] Furthermore, the side panel has a contour shape of a trapezoid that is narrow at the top and wide at the bottom, and the oblique waist edge of the side panel is arranged on a side away from the first support.

[0019] Furthermore, the upper transverse plate is extended and arranged parallel to the hinge axis of the first support, and the through hole of the straightening structure is opened in the middle of the upper transverse plate.

[0020] Furthermore, the through hole of the straightening structure is an internal threaded hole, and the fastener is a fastening bolt, and the fastening bolt is threadedly matched with the through hole of the straightening structure.

[0021] Furthermore, it also includes a base plate, the first support, the second support, and the righting structure are all fixedly installed on the upper side of the base plate, and the base plate is used to be fixedly connected to the hull.

[0022] Furthermore, the second support is arranged on a side of the base plate corresponding to the bow direction, the first support is arranged on a side of the base plate corresponding to the stern direction, and the righting structure is arranged at a spaced position on the base plate between the first support and the second support.

[0023] Furthermore, reinforcing ribs are provided between the outer side surface of the first support and the upper side surface of the substrate, between the outer side surface of the second support and the upper side surface of the substrate, and between the outer side surface of the straightening structure and the upper side surface of the substrate.

[0024] Furthermore, the retractable and retractable driver is a hydraulic cylinder, which is connected to an electric pump via a hydraulic pipeline. The electric pump is also electrically connected to a control cabinet, and the control cabinet is used to control the start and stop of the electric pump and the oil inlet direction.

[0025] Furthermore, the control cabinet is provided with a first pump start switch and a second pump start switch, and both the first pump start switch and the second pump start switch are inching type push-button switches;

[0026] When the first pump start switch is pressed, the electric pump is started to control the extension of the hydraulic cylinder, and when the first pump start switch is released, the electric pump is turned off;

[0027] When the second pump start switch is pressed, the electric pump is started to control the retraction action of the hydraulic cylinder, and when the second pump start switch is released, the electric pump is turned off.

[0028] Furthermore, the hydraulic cylinder is detachably connected to an emergency manual pump through a hydraulic pipeline, and a reciprocating operating rod and a reversing valve rod are installed on the emergency manual pump. The reciprocating operating rod is used to supply oil to the hydraulic chamber of the hydraulic cylinder, and the reversing valve rod is used to switch the oil inlet direction of the hydraulic oil.

[0029] Compared with the prior art, the utility model has the beneficial effect of a retractable ship flagpole device: the retractable ship flagpole device adopts a design form of a first support, a second support, a flagpole body, a retractable drive and a righting structure; the first support and the second support are arranged on the hull at intervals, one end of the flagpole body is hingedly connected to the first support, and a connecting part distributed at intervals relative to the first support is also provided on the flagpole body; the retractable drive is hingedly connected between the first support and the connecting part.

[0030] Since the hinge axis of the first support, the hinge axis of the second support and the hinge axis of the connection part are parallel to each other, interference is avoided when the retracting and extending driver is in motion, and the axis connecting line of the three hinge axes forms a triangle. When the retracting and extending driver is in motion, the hinge axis of the connection part can be driven to approach or move away from the hinge axis of the second support, thereby driving the flagpole body to be automatically erected or laid down around the hinge axis of the first support.

[0031] Moreover, the righting structure is fixedly mounted on the hull, and a relief space is provided at the bottom of the righting structure, through which the flagpole body and / or the retracting and extending drive can be accommodated to perform flexible retracting and extending actions, thereby ensuring that the flagpole body can be normally erected and laid down, and the retracting and extending drive can be normally retracted and extended. In addition, a limit plate is fixedly connected to one side of the flagpole body corresponding to the righting structure, and a fastener is detachably connected between the upper part of the righting structure and the limit plate.

[0032] The key is that when the main body of the flagpole is erected, it is fixed by the limit plate, fasteners and the straightening structure. Because there is an escape space at the bottom of the straightening structure, the lateral restraint force of the limit plate is at a higher position, which is equivalent to raising the lateral force height of the main body of the flagpole, ensuring that the straightening structure exerts reliable lateral restraint on the main body of the flagpole, and preventing the flagpole from being easily affected by wind and waves and lateral tilting when erected. Removing the fasteners can drive the main body of the flagpole to fall down, meeting the requirements of the flagpole device taking into account both automatic retraction and erection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of a retractable ship flagpole device in an embodiment of the utility model;

[0034] Figure 2 It is a partial stereoscopic diagram of the retractable ship flagpole device (first viewing angle) in the embodiment of the utility model;

[0035] Figure 3 It is a partial stereoscopic view of the retractable ship flagpole device (second viewing angle) in the embodiment of the utility model;

[0036] Figure 4 It is a partial top view of the retractable ship flagpole device in the embodiment of the utility model;

[0037] Figure 5 It is a schematic diagram of the arrangement of hydraulic pipelines on the hull in an embodiment of the utility model;

[0038] Figure 6 It is a three-dimensional schematic diagram of an electric pump and a control cabinet of a retractable ship flagpole device in an embodiment of the utility model;

[0039] In the figure: 1-first support, 10-hinged axis of the first support, 11-first ear plate, 2-second support, 20-hinged axis of the second support, 21-second ear plate, 3-flagpole body, 30-connecting part, 31-hinged axis of the connecting part, 32-flagpole bottom plate, 33-bottom ear plate, 4-retracting and releasing drive, 40-hydraulic pipeline, 5-righting structure, 50-avoidance space, 500-through hole, 51-limiting plate, 52-fastener, 53-side plate, 54-upper transverse plate, 55-inner concave edge, 6-base plate, 60-reinforcement rib, 7-electric pump, 70-control cabinet, 71-first pump start switch, 72-second pump start switch, 8-emergency manual pump, 81-reciprocating operating lever, 82-reversing valve stem, 9-hull. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figures 1 to 6As shown, a retractable ship flagpole device according to an embodiment of the utility model comprises a first support 1, a second support 2, a flagpole body 3, a retracting and extending drive 4 and a righting structure 5. The first support 1 and the second support 2 are arranged on the hull 9 at intervals, and one end of the flagpole body 3 is hingedly connected to the first support 1.

[0045] A connecting portion 30 is also provided on the flagpole body 3, and the connecting portion 30 is arranged at intervals relative to the first support 1. One end of the retractable and extendable driver 4 is hingedly connected to the second support 2, and the other end of the retractable and extendable driver 4 is hingedly connected to the connecting portion 30. The hinge axis of the first support 1, the hinge axis of the second support 2, and the hinge axis of the connecting portion 30 are arranged parallel to each other.

[0046] The righting structure 5 is fixedly installed on the hull 9, and the lower part of the righting structure 5 is provided with an avoidance space 50 for accommodating the retraction and extension action of the flagpole body 3 and / or the retraction and extension drive 4; a limiting plate 51 is fixedly connected to one side of the flagpole body 3 corresponding to the righting structure 5, and a fastener 52 is detachably connected between the upper part of the righting structure 5 and the limiting plate 51 to fix the flagpole body 3 to maintain an upright state.

[0047] The retractable ship flagpole device adopts a design form of a first support 1, a second support 2, a flagpole body 3, a retractable drive 4 and a righting structure 5. The first support 1 and the second support 2 are arranged on the hull 9 at intervals, one end of the flagpole body 3 is hingedly connected to the first support 1, and the flagpole body 3 is also provided with a connecting portion 30 distributed at intervals relative to the first support 1, and the retractable drive 4 is hingedly connected between the first support 1 and the connecting portion 30.

[0048] Since the hinge axis 10 of the first support, the hinge axis 20 of the second support and the hinge axis 31 of the connection part are parallel to each other, interference is avoided when the retracting and extending driver 4 is in motion, and the axis connecting line of the three hinge axes forms a triangle. When the retracting and extending driver 4 is in motion, the hinge axis 31 of the connection part can be driven to approach or move away from the hinge axis 20 of the second support, thereby driving the flagpole body 3 to be automatically erected or laid down around the hinge axis 10 of the first support.

[0049] Moreover, the righting structure 5 is fixedly mounted on the hull 9, and a avoidance space 50 is provided at the lower part of the righting structure 5, through which the flagpole body 3 and / or the retracting and extending drive 4 can be accommodated to perform flexible retracting and extending actions, thereby ensuring that the flagpole body 3 can be normally erected and laid down, and the retracting and extending drive 4 can be normally retracted and extended. In addition, a limiting plate 51 is fixedly connected to one side of the flagpole body 3 corresponding to the righting structure 5, and a fastener 52 is detachably connected between the upper part of the righting structure 5 and the limiting plate 51.

[0050] The key point is that when the flagpole body 3 is erected, it is fixed to the righting structure 5 through the limit plate 51 and the fastener 52. Because there is an avoidance space 50 at the bottom of the righting structure 5, the lateral restraint force of the limit plate 51 is at a higher position, which is equivalent to raising the lateral force height of the flagpole body 3, ensuring that the righting structure 5 produces reliable lateral restraint on the flagpole body 3, and preventing the flagpole from being easily affected by wind and waves and lateral tilting when erected. Removing the fastener 52 can drive the flagpole body 3 to fall down, meeting the requirements of the flagpole device taking into account both automatic retraction and erection stability.

[0051] In this embodiment, through holes 500 are respectively provided at the upper part of the righting structure 5 and the end of the limiting plate 51. When the flagpole body 3 is erected, the through hole 500 of the righting structure 5 corresponds to the through hole 500 of the limiting plate 51, and the fastener 52 is connected through the through hole 500 of the righting structure 5 and the through hole 500 of the limiting plate 51. The fastener adopts a through connection to more reliably fix the flagpole body 3. Moreover, the limiting plate 51 is perpendicular to the length direction of the flagpole body 3 and extends toward the righting structure 5. The through hole 500 of the limiting plate 51 is an internal threaded hole, and the fastener 52 is a fastening bolt, which is threadedly matched with the through hole 500 of the limiting plate 51.

[0052] Among them, the limiting plate 51 is also provided with an inner concave edge 55, which is matched with the outer wall of the flagpole body 3 in a concave-convex manner, and the inner concave edge 55 is welded and fixed to the outer wall of the flagpole body 3. The inner concave edge 55 increases the welding area between the limiting plate 51 and the flagpole body 3, thereby improving the connection strength and lateral force stability.

[0053] Specifically, the limiting plate 51 is a rectangular steel plate with a length of 120 mm, a width of 80 mm, and a thickness of 20 mm. An internal threaded hole is provided at the end of the limiting plate 51. The fastening bolt is an M20*60 mm external hexagonal bolt, and the fastening bolt is threadedly matched with the through hole 500 of the limiting plate 51. The fastening bolt can be screwed into or out of the through hole 500 of the righting structure 5, thereby achieving the purpose of fast fixing and disassembling between the limiting plate 51 and the righting structure 5.

[0054] In addition, the flagpole body 3 is a steel circular tube with a diameter of 89 mm and a wall thickness of 3 mm. One end of the flagpole body 3 is also provided with a flagpole bottom plate 32 and two bottom ear plates 33. One side of the flagpole bottom plate 32 is welded and fixed to the flagpole body 3, and the two bottom ear plates 33 are arranged in parallel and spaced apart and are respectively welded and fixed to the other side of the flagpole bottom plate 32. The flagpole bottom plate 32 is a steel circular plate with a diameter of 120 mm and a thickness of 20 mm, and the bottom ear plate 33 is a steel plate with a length of 120 mm, a width of 100 mm and a thickness of 20 mm.

[0055] As a further preferred solution, the height of the righting structure 5 is any size between 300 mm and 600 mm, and when the flagpole body 3 is erected, the limit plate 51 is located on the upper side of the righting structure 5. The design height of the righting structure 5 is 300 mm to 600 mm, which can significantly raise the righting force height of the flagpole body 3, thereby ensuring the reliability of the lateral restraint.

[0056] The righting structure 5 is an inverted U-shaped frame, which includes two side plates 53 and an upper horizontal plate 54. The two side plates 53 are respectively arranged outside the interval between the first support 1 and the second support 2, and the upper horizontal plate 54 is fixedly connected between the upper parts of the two side plates 53. The inverted U-shaped righting structure 5 reserves sufficient avoidance space 50 for the retracting and extending driver 4, and the righting structure 5 will not interfere with the retracting and extending action of the flagpole body 3, thereby ensuring the reliability of the retracting and extending work of the flagpole.

[0057] In this embodiment, the side panels 53 have a contour shape of a trapezoid that is narrow at the top and wide at the bottom. The oblique waist edge of the side panel 53 is arranged on the side away from the first support 1. Since the side panels 53 adopt a trapezoidal design, the force stability of the straightening structure 5 in the front-to-back direction can be improved. Specifically, the two side panels 53 are both trapezoidal steel plates with a height of 410 mm and a thickness of 20 mm. The upper horizontal plate 54 is a rectangular steel plate with a length of 320 mm, a width of 100 mm, and a thickness of 20 mm. The two side panels 53 are respectively perpendicular to the upper horizontal plate 54 and welded and fixed. The upper horizontal plate 54 extends and is arranged parallel to the hinge axis of the first support 1. The through hole 500 of the straightening structure 5 is opened in the middle of the upper horizontal plate 54. The through hole 500 of the straightening structure 5 is also an internal threaded hole, and the fastening bolt is threadedly matched with the through hole 500 of the upper horizontal plate 54.

[0058] The retractable ship flagpole device also includes a base plate 6, and the first support 1, the second support 2, and the righting structure 5 are all fixedly mounted on the upper side of the base plate 6, and the base plate 6 is used to be fixedly connected to the hull 9. As a further preferred solution, the second support 2 is arranged on the side of the base plate 6 corresponding to the bow direction, the first support 1 is arranged on the side of the base plate 6 corresponding to the stern direction, and the righting structure 5 is arranged at the interval position between the first support 1 and the second support 2 of the base plate 6.

[0059] Specifically, the base plate 6 is a polygonal low-carbon steel plate with a total length of 950 mm, a maximum width of 500 mm, and a thickness of 20 mm. Reinforcing ribs 60 are welded between the outer side surfaces of the two side plates 53 of the righting structure 5 and the upper side surface of the base plate 6. The righting structure 5 has two groups of reinforcing ribs 60, each group has two pieces, each piece is 140 mm high, 70 mm wide, and 20 mm thick. The reinforcing ribs 60 can improve the reliability of the righting structure 5 under lateral force.

[0060] The first support 1 includes two first ear plates 11 that are spaced apart. The first ear plates 11 are welded and fixed on one side of the long side of the base plate 6. The first ear plates are 140 mm high, 200 mm wide and 20 mm thick. The hinge shaft 10 of the first support is a stepped steel pin with a diameter of 50 mm and a length of 150 mm. A reinforcing rib is welded and connected between the outer side surfaces of the two first ear plates 11 of the first support 1 and the upper side surface of the base plate 6. The reinforcing rib at the first ear plate 11 is 50 mm high, 50 mm wide and 20 mm thick. The connecting portion 30 includes two connecting portion ear plates that are spaced apart. The connecting portion ear plates are 180 mm long, 100 mm wide and 20 mm thick and are welded and fixed to the outer side wall of the flagpole body 3.

[0061] In addition, the second support 2 includes two second ear plates 21 spaced apart from each other, the second ear plates 21 are welded and fixed to one side of the short side of the base plate 5, and the second ear plates are 290 mm high and 20 mm thick. A reinforcing rib is welded between the outer side surface of the second ear plate 21 of the second support 2 and the upper side surface of the base plate 6, and the reinforcing rib at the second ear plate 12 is 100 mm high, 50 mm wide, and 20 mm thick.

[0062] In this embodiment, the retractable drive 4 is a hydraulic cylinder, which is connected to an electric pump 7 through a hydraulic pipeline 40, and the electric pump 7 is electrically connected to a control cabinet 70, which is used to control the start and stop and oil inlet direction of the electric pump 7. Specifically, a first pump start switch 71 and a second pump start switch 72 are provided on the control cabinet 70, and both the first pump start switch 71 and the second pump start switch 72 are inching type push switches; when the first pump start switch 71 is pressed, the electric pump 7 is started to control the extension action of the hydraulic cylinder, and when the first pump start switch 71 is released, the electric pump 7 is turned off; when the second pump start switch 72 is pressed, the electric pump 7 is started to control the retraction action of the hydraulic cylinder, and when the second pump start switch is released, the electric pump 7 is turned off.

[0063] Among them, the cylinder diameter of the hydraulic cylinder is 100mm, the stroke is 200mm, and the installation size is 555mm. The cylinder end of the hydraulic cylinder is connected to the second ear plate 12 through the hinge shaft 20 of the second support; the piston rod end of the hydraulic cylinder is connected to the connecting part ear plate through the hinge shaft 31 of the connecting part. The hinge shaft 20 of the second support and the hinge shaft 31 of the connecting part are stepped steel pins with a diameter of 50mm and a length of 130mm respectively. It should be noted that the electric pump 7 is a three-phase 380V, 50Hz, power 1.5Kw, speed 1400r / min electric hydraulic pump, with a flow rate of 2.2L / min and a rated pressure of 16Mpa. The hydraulic pipeline 40 has a diameter of 18mm and a working pressure of 30Mpa.

[0064] In addition, the hydraulic cylinder is also detachably connected to an emergency manual pump 8 through a hydraulic pipeline 40. A reciprocating operating rod 81 and a reversing valve rod 82 are installed on the emergency manual pump 8. The reciprocating operating rod 81 is used to supply oil to the hydraulic chamber of the hydraulic cylinder, and the reversing valve rod 82 is used to switch the oil inlet direction of the hydraulic oil. The emergency manual pump 8 is a 700mm*180mm*180mm portable manual hydraulic pump. When the electric pump 7 fails, the emergency manual pump 8 can be used to achieve the purpose of emergency retracting and lowering the flagpole.

[0065] The working process of the utility model is:

[0066] Electric mode:

[0067] Step 1: The initial angle of the flagpole body 3 is 0°, i.e., it is in the lying state. After turning on the power, press the second pump start switch 72 to control the electric pump 7 to start and retract the piston rod, driving the flagpole body 3 to slowly rotate to 90°, i.e., the flagpole body 3 reaches the erected state.

[0068] Step 2: When the flagpole body 3 needs to be laid down, it is in the upright state. Press the first pump start switch 71 to control the electric pump 7 to start and extend the piston rod, driving the flagpole body 3 to slowly rotate in the opposite direction to 0°, that is, the flagpole body 3 reaches the laid-down state.

[0069] Step 3. Considering the convenience and safety of operation, the first pump start switch 71 and the second pump start switch 72 are both momentary push switches. The electric pump 7 can be turned off by releasing the first pump start switch 71 and the second pump start switch 72. This operation can realize the automatic retraction and extension function of the flagpole body 3.

[0070] Step 4: Use fasteners 52 to fix the straightening structure 5 and the limit plate 51 to produce a lateral restraint effect on the flagpole body 3, and then disconnect the power supply of the control cabinet 70.

[0071] Manual Mode:

[0072] Step 1: The initial angle of the flagpole body 3 is 0°, that is, it is in the laid-down state. Use a quick connector to connect the hydraulic pipeline 40 to the emergency manual pump 8. Adjust the oil inlet direction through the reversing valve stem 82. Manually operate the reciprocating operating lever 81 to inject oil into the hydraulic chamber on the rod side to retract the piston rod, driving the flagpole body 3 to slowly rotate to 90°, that is, the flagpole body 3 reaches the erected state.

[0073] Step 2: When the flagpole body 3 needs to be laid down, it is in the upright state at this time. The oil supply direction is switched by the reversing valve stem 82, and the reciprocating operating rod 81 is manually operated to supply oil to the hydraulic chamber on the rodless side to extend the piston rod, thereby driving the flagpole body 3 to slowly rotate in the opposite direction to 0°, that is, the flagpole body 3 reaches the laid-down state. The manual operation can be stopped at any time.

[0074] Step 3: Use the fastener 52 to fix the limit plate 51 connecting the righting structure 5 and the flagpole body 3, disassemble the emergency manual pump 8, and disconnect the power supply of the control cabinet 70.

[0075] It should be noted that in other embodiments of the present invention, the "laid-down state" is not limited to the flagpole body being at 0°, and in a broad sense, the flagpole body being in the range of 0° to 10° can be regarded as the "laid-down state". Correspondingly, in other embodiments of the present invention, the "erected state" is not limited to the flagpole body being at 90°, and in a broad sense, the flagpole body being in the range of 80° to 100° can be regarded as the "erected state".

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A retractable ship flagpole device, characterized in that: The flagpole comprises a first support (1), a second support (2), a flagpole body (3), a retracting and extending driver (4) and a righting structure (5), wherein the first support (1) and the second support (2) are arranged on a hull (9) at intervals, and one end of the flagpole body (3) is hingedly connected to the first support (1); The flagpole body (3) is also provided with a connecting portion (30), the connecting portion (30) being arranged at intervals relative to the first support (1), one end of the retractable and extendable driver (4) being hingedly connected to the second support (2), and the other end of the retractable and extendable driver (4) being hingedly connected to the connecting portion (30); The hinge axis of the first support (1), the hinge axis of the second support (2), and the hinge axis of the connecting portion (30) are arranged parallel to each other; The righting structure (5) is fixedly mounted on the hull (9), and a relief space (50) is provided at the bottom of the righting structure (5) for accommodating the retracting and extending action of the flagpole body (3) and / or the retracting and extending drive (4); The flagpole body (3) is fixedly connected to a limiting plate (51) at one side of the straightening structure (5), and a fastener (52) is detachably connected between the upper part of the straightening structure (5) and the limiting plate (51) to fix the flagpole body (3) in an erected state.

2. The retractable ship flagpole device according to claim 1 is characterized in that: The upper part of the straightening structure (5) and the end of the limiting plate (51) are respectively provided with through holes (500); when the flagpole body (3) is erected, the through hole (500) of the straightening structure (5) corresponds to the through hole (500) of the limiting plate (51), and the fastener (52) is installed and connected in the two through holes (500).

3. The retractable ship flagpole device according to claim 2 is characterized in that: The limiting plate (51) is perpendicular to the length direction of the flagpole body (3) and is extended toward the straightening structure (5); the through hole (500) of the limiting plate (51) is an internal threaded hole; the fastener (52) is a fastening bolt, and the fastening bolt is threadedly matched with the through hole (500) of the limiting plate (51).

4. The retractable ship flagpole device according to any one of claims 1 to 3, characterized in that: The limiting plate (51) is also provided with an inner concave edge (55), the inner concave edge (55) is matched with the outer wall of the flagpole body (3) in a concave-convex manner, and the inner concave edge (55) is fixed to the outer wall of the flagpole body (3) by welding.

5. The retractable ship flagpole device according to any one of claims 1 to 3, characterized in that: The height of the straightening structure (5) is any size between 300 mm and 600 mm, and when the flagpole body (3) is erected, the limiting plate (51) is located on the upper side of the straightening structure (5).

6. The retractable ship flagpole device according to any one of claims 1 to 3, characterized in that: The straightening structure (5) is an inverted U-shaped frame, comprising two side plates (53) and an upper transverse plate (54), wherein the two side plates (53) are respectively arranged on the outside of the spacing position between the first support (1) and the second support (2), and the upper transverse plate (54) is fixedly connected between the upper parts of the two side plates (53).

7. The retractable ship flagpole device according to claim 6 is characterized in that: The side plate (53) has a profile shape of a trapezoid that is narrow at the top and wide at the bottom, and the oblique waist edge of the side plate (53) is arranged on a side away from the first support (1).

8. The retractable ship flagpole device according to claim 6, characterized in that: The upper transverse plate (54) is arranged to extend parallel to the hinge axis of the first support (1), and the through hole (500) of the straightening structure (5) is opened in the middle of the upper transverse plate (54).

9. The retractable ship flagpole device according to claim 2, characterized in that: The through hole (500) of the straightening structure (5) is an internal threaded hole, and the fastener (52) is a fastening bolt, which is threadably matched with the through hole (500) of the straightening structure (5).

10. The retractable ship flagpole device according to claim 1, characterized in that: It also comprises a base plate (6), the first support (1), the second support (2), and the righting structure (5) are all fixedly mounted on the upper side of the base plate (6), and the base plate (6) is used for being fixedly connected to the hull (9).

11. The retractable ship flagpole device according to claim 10, characterized in that: The second support (2) is arranged on a side of the base plate (6) corresponding to the bow direction, the first support (1) is arranged on a side of the base plate (6) corresponding to the stern direction, and the righting structure (5) is arranged at a spaced position on the base plate (6) between the first support (1) and the second support (2).

12. The retractable ship flagpole device according to claim 10, characterized in that: Reinforcing ribs (60) are provided between the outer side surface of the first support (1) and the upper side surface of the base plate (6), between the outer side surface of the second support (2) and the upper side surface of the base plate (6), and between the outer side surface of the straightening structure (5) and the upper side surface of the base plate (6).

13. The retractable ship flagpole device according to claim 1, characterized in that: The retractable and retractable driver (4) is a hydraulic cylinder, which is connected to an electric pump (7) via a hydraulic pipeline (40). The electric pump (7) is also electrically connected to a control cabinet (70), and the control cabinet (70) is used to control the start and stop of the electric pump (7) and the oil inlet direction.

14. The retractable ship flagpole device according to claim 13, characterized in that: The control cabinet (70) is provided with a first pump start switch (71) and a second pump start switch (72), and the first pump start switch (71) and the second pump start switch (72) are both inching type push-button switches; When the first pump start switch (71) is pressed, the electric pump (7) is started to control the extension action of the hydraulic cylinder, and when the first pump start switch (71) is released, the electric pump (7) is turned off; When the second pump start switch (72) is pressed, the electric pump (7) is started to control the retraction action of the hydraulic cylinder, and when the second pump start switch (72) is released, the electric pump (7) is turned off.

15. The retractable ship flagpole device according to claim 13, characterized in that: The hydraulic cylinder is detachably connected to an emergency manual pump (8) via a hydraulic pipeline (40); a reciprocating operating rod (81) and a reversing valve rod (82) are mounted on the emergency manual pump (8); the reciprocating operating rod (81) is used to supply oil to the hydraulic chamber of the hydraulic cylinder; and the reversing valve rod (82) is used to switch the oil inlet direction of the hydraulic oil.

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