An indication device and method for improving ship marshaling lock passing efficiency

Abstract

An indicator device and method for improving the efficiency of ship formations passing through a lock. The extended beam is fixedly mounted on the dam body on the left side of the dam side wall via a fixing seat. A guide chamber opening to the right is provided in the extended beam. A guide wheel is rotatably provided in the guide chamber. A traction rope is wound around the retractable wheel. The other end of the traction rope extends out of the traction chamber and is wound around the retractable wheel on the lower side after passing the guide wheel. Two traction ropes located between the extended beam and the dam side wall are covered with more than one set of calibration components. Areas are divided according to the width of the lock, and waiting ships are divided into groups. After some ships enter the group, the remaining space is divided again. If the size of the ship meets the space in the area, the ship is registered. At this time, the space waiting for the ship to enter in the area where the ship group is located is calibrated by the indicator device so that the ship can enter. This shortens the scheduling and control time required for the ship group to pass through the lock and speeds up the efficiency of the lock.

Description

Technical Field

[0001] The present invention relates to the technical field of ship dispatching, and in particular to an indicator device and method for improving the efficiency of ship marshaling through a lock. Background Art

[0002] In the past, when ships were preparing to pass through the locks, in order to maximize efficiency, the crew was required to report the size of the ship to the lock dispatcher. The dispatcher collected the size of each waiting ship and then dispatched and organized the ships into groups according to their size to prepare for passage through the locks.

[0003] However, this dispatching method is still relatively cumbersome, requiring the crew to upload data - the dispatcher to review the data and then determine the best marshaling method through nucleic acid sequencing - feedback to the crew, and the crew to maneuver the ship into position and wait for entry into the lock. This process is relatively cumbersome; Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an indicator device and method for improving the efficiency of ship formation passing through the lock. The purpose is to design a method for improving the ship formation passing through the lock by dividing the area according to the width of the lock and calibrating the size of the ship formation that can enter the lock, using this as the review condition to approve the ships that can enter the group and pass through the lock, thereby speeding up the ship passing efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An indicator device for improving the efficiency of ship marshaling through a lock, the indicator device comprising a protruding beam body arranged on the left side of a dam body side wall, the protruding beam body being fixed on the dam body on the left side of the dam body side wall through a fixing seat;

[0007] A traction chamber is provided in the side wall of the dam body. Retractable wheels are rotatably provided in the traction chamber, and the retractable wheels in the traction chamber are driven by drive motors respectively. A guide chamber with an opening facing right is provided in the extending beam body. A guide wheel is rotatably provided in the guide chamber. A traction rope is wound around the retractable wheel. The other end of the traction rope extends out of the traction chamber and is wound around the retractable wheel on the lower side after passing around the guide wheel. The rotation of the retractable wheel can drive the traction rope to rotate.

[0008] More than one set of calibration components are sleeved on the two traction cables between the extended beam and the side wall of the dam body. The calibration components can be locked on the traction cables in a controllable manner or move on the traction cables.

[0009] The above-mentioned calibration component is composed of two cylinders symmetrically arranged front and back and a storage winch. The two cylinders are placed front and back and fixed on the upper end of the storage winch. There are wire holes passing through the left and right sides of the cylinder. The front and rear traction ropes pass through the wire holes respectively. A storage groove is provided in the storage winch. The lower end of the storage groove is connected to an outlet. A winch is rotatably provided in the storage groove, and a line mark is wound on the winch. A migration calibration component is provided between the line holes in one of the cylinders. The migration calibration component drives the winch to rotate by moving the cylinder relative to the traction rope, so as to realize the retraction and release of the line mark and drive the cylinder to move in the area between the protruding beam and the side wall of the dam body.

[0010] The above-mentioned migration calibration component includes a locking groove that is symmetrically arranged in the cylinder and connected to the wire hole. A slider is slidably arranged in the locking groove. The traction rope passes through the locking groove and the slider, and the traction rope and the slider are slidably connected. An annular groove with an outward opening is arranged in the slider. An annular permanent magnet is fixed on the left and right inner walls of the annular groove, and an electromagnet extending into the annular groove is fixed on the arc-shaped inner wall around the locking groove.

[0011] Three balls are respectively provided on the left and right sides of the above-mentioned slider and located in the locking slot, and the left and right inner walls of the locking slot are provided with inclined surfaces. By energizing the electromagnet, the slider can slide in the locking slot, and the pushing of the slider causes the balls and the inclined surfaces on the locking slot to squeeze each other and then squeeze the traction rope.

[0012] The above-mentioned cylinder containing the migration calibration component is provided with a driving groove whose lower end is connected to the storage groove. The traction rope crosses the driving groove. A wire drive wheel is rotatably provided in the driving groove. When the traction rope crosses the driving groove, it is wrapped around the wire drive wheel twice. A driving gear coaxially connected to the wire drive wheel is provided in the driving groove, and a passive gear coaxially connected to the winch is provided in the cylinder. The passive gear and the driving gear are meshed and connected.

[0013] A fluid-repellent material is fixedly provided at the lower end of the line mark.

[0014] Friction wheels are provided at the upper and lower openings of the outlet.

[0015] The lower end opening of the above-mentioned outlet is connected to a countersunk hole opening outward, and the countersunk hole cooperates with the hydrophobic fluid to prevent the lower end of the line marker from being completely received in the receiving groove.

[0016] The above-mentioned line markers are affixed with reflective stickers and the traction ropes have woven grooves.

[0017] The specific steps of the indicating method using the above-mentioned indicating device for improving the efficiency of ship marshaling through a lock are as follows:

[0018] In the initial state, the storage capstan and the cylinder are stored close to the side wall of the dam body. At this time, the line marker is stored in the storage groove to the maximum extent and the drainage body is connected to the outlet. The slider is located in the middle position of the locking slide groove. At this time, the electromagnet is in the power-off state;

[0019] When the first ship preparing to enter the lock enters the waiting area, the electromagnets in each cylinder are energized, and the magnetism between the electromagnets and the permanent magnets pushes the sphere to move and clamps the traction rope section in the chute. At the same time, the retractable wheels rotate and one retractable wheel feeds the wire and the other retracts the wire, thereby winding the traction rope. The migration of the traction rope's position at the same point drives the cylinder to move between the protruding beam and the side wall of the dam. The area between the left and right sides and the second set of receiving winches from right to left is determined by the first ship in position, and the width of the area to the left of the ship is calculated by the computer. The distance is notified to the ship preparing to pass through the lock at the rear through the broadcast at the rear. If the width of the ship is within the range that can be accommodated by the width of the area, the ship will notify the dispatch room of its own width. At this time, the dispatch room will use the rolling of the retractable wheels to drive the subsequent cylinders and receiving winches to move for position calibration, and calibrate the area entered by the notified ship. Similarly, the area that a specified ship can enter can be calibrated by the receiving winches.

[0020] When the cylinder follows the movement of the traction rope, the traction rope is locked by the ball on the rear side, and the slider on the front side is located in the middle position of the locking slide groove. At this time, the traction rope can be pulled and slid by the traction rope to drive the line driving wheel to rotate, and then the active gear drives the passive gear to rotate and the line marker is released, and is dragged out by the water flow to form an area division on the water surface. That is, when entering the area division, the traction rope is tightened by the two retracting and releasing wheels so that the cylinder and the receiving winch are suspended above the water surface for a certain distance or on the water surface, and the traction rope is locked by sliding the sliders in the cylinders on the front and rear sides. When the retracting and releasing wheels pull the traction rope, the cylinder and the receiving winch are driven to move in the area extending from the beam and the side wall of the dam body to define the area, and the locking restriction of the traction rope by the balls on both sides can drive the line driving wheel to rotate during the movement of the cylinder, and then the line marker is retracted and released, so that the released line marker can be easily observed by the ship waiting to enter;

[0021] When each ship enters the pending area and prepares to enter the lock, all electromagnets lose power. At the same time, the retractable wheel on one side releases the traction rope, causing the cylinder and the storage winch to sink into the water, clearing the waterway. This prevents the traction rope from being entangled in the ship's propeller when the ship passes through the area and causing damage to the ship.

[0022] The present invention provides an indication device and method for improving the efficiency of ship marshaling through a lock, which has the following beneficial effects:

[0023] When in use, this method divides the area according to the width of the lock, and uses this as a prerequisite to group the waiting ships. After some ships enter the group, the remaining space is divided again and the size of the area is reported to the control personnel. If the ship size meets the space in the area, it will be registered. After passing the review, the ship will be approved to join the group. At this time, the space waiting for the ship to enter in the area where the ship group is located is calibrated through the indicating device to facilitate the ship to enter, thereby shortening the scheduling and control time required for the ship group to pass through the lock and speeding up the lock passing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 Schematic diagram of the overall structure of the indicating device of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure in the "AA" direction;

[0027] Figure 3 It is a schematic diagram of the distribution of each group of indicator devices;

[0028] Figure 4 It is a schematic diagram of the distribution of each group of indicator devices;

[0029] Figure 5 It is a structural diagram of the slider and the sphere;

[0030] Figure 6 A schematic diagram of the structure of the cylinder and the locking slot in the side view;

[0031] Figure 7 Schematic diagram of the structure of the reflective tape;

[0032] Figure 8 Schematic diagram of the structure of the traction rope;

[0033] Figure 9 It is a structural diagram of the traction rope and the driving gear.

[0034] Among them: cylinder 101, traction rope 103, migration calibration component 104, drive groove 105, driving gear 106, driving wheel 107, wire hole 108, storage capstan 109, countersunk hole 110, storage groove 111, passive gear 112, capstan 113, friction wheel 114, outlet 115, hydrophobic fluid 116, locking slide 121, sphere 122, permanent magnet 123, electromagnet 124, annular groove 125, slider 126, reflective sticker 141, weaving groove 142, fixing seat 144, extending beam body 145, guide chamber 146, guide wheel 147, dam body side wall 148, retractable wheel 149, traction chamber 151, line marker 161. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1-9 As shown in , an indicator device for improving the efficiency of ship marshaling through the lock, the indicator device includes a protruding beam body 145 arranged on the left side of the dam body side wall 148, and the protruding beam body 145 is fixed to the dam body on the left side of the dam body side wall 148 through a fixing seat 144;

[0037] A traction chamber 151 is provided in the side wall 148 of the dam body. Retractable wheels 149 are symmetrically and rotatably provided in the traction chamber 151. The retractable wheels 149 in the traction chamber 151 are driven by drive motors respectively. A guide chamber 146 with an opening to the right is provided in the extending beam body 145. A guide wheel 147 is rotatably provided in the guide chamber 146. A traction rope 103 is wound around the retractable wheel 149. The other end of the traction rope 103 extends out of the traction chamber 151 and, after passing around the guide wheel 147, is wound around the retractable wheel 149 on the lower side. The rotation of the retractable wheel 149 can drive the traction rope 103 to rotate.

[0038] More than one set of marking components are sleeved on the two traction cables 103 between the extended beam 145 and the dam sidewall 148 . The marking components can be locked on the traction cables 103 or move on the traction cables 103 in a controllable manner.

[0039] The above-mentioned calibration assembly is composed of two cylindrical bodies 101 symmetrically arranged in front and back and a receiving winch 109. The two cylindrical bodies 101 are placed in front and back and fixedly arranged on the upper end of the receiving winch 109. There are wire holes 108 passing through the cylindrical bodies 101 on the left and right. The front and rear two traction ropes 103 pass through the wire holes 108 respectively. A receiving groove 111 is provided in the receiving winch 109. The lower end of the receiving groove 111 is connected to an outlet 115. A winch 113 is rotatably provided in the groove 111, and a line marker 161 is wound on the winch 113. A migration calibration component 104 is provided between the line holes 108 in one of the cylinders 101. The migration calibration component 104 drives the winch 113 to rotate by moving the cylinder 101 relative to the traction rope 103, so as to realize the retraction and release of the line marker 161 and drive the cylinder 101 to move in the area between the protruding beam 145 and the side wall 148 of the dam body.

[0040] like Figure 1 and 2 as well as Figure 5 As shown in the figure, the above-mentioned migration calibration component 104 includes a locking groove 121 which is symmetrically arranged in the cylinder 101 and connected to the wire hole 108. A slider 126 is slidably arranged in the locking groove 121. The traction rope 103 passes through the locking groove 121 and the slider 126, and the traction rope 103 is slidably connected to the slider 126. An annular ring groove 125 with an outward opening is provided in the slider 126. An annular permanent magnet 123 is fixedly provided on the left and right inner walls of the ring groove 125, and an electromagnet 124 extending into the ring groove 125 is fixedly provided on the arc-shaped inner wall around the locking groove 121.

[0041] Three balls 122 are respectively provided on the left and right sides of the above-mentioned slider 126 and located in the locking slot 121, and the left and right inner walls of the locking slot 121 are provided with inclined surfaces. By energizing the electromagnet 124, the slider 126 can slide in the locking slot 121, and the pushing of the slider 126 causes the balls 122 and the inclined surfaces on the locking slot 121 to squeeze each other and then squeeze the traction rope 103.

[0042] By limiting the sliding of the traction rope 103 in the locking slot 121, the cylinder 101 is locked on the traction rope 103, and then the traction rope 103 is pulled by the retracting wheel 149, which can drive the cylinder 101 and the storage winch 109 to move left and right to mark the section.

[0043] The cylinder 101 including the migration calibration component 104 is provided with a driving groove 105 whose lower end is connected to the receiving groove 111. The traction rope 103 crosses the driving groove 105. A wire driving wheel 107 is rotatably provided in the driving groove 105. When the traction rope 103 crosses the driving groove 105, it is wrapped around the wire driving wheel 107 twice. Then, when the traction rope 103 slides relative to the cylinder 101, the wire driving wheel 107 can be driven to rotate. A driving gear 107 is provided in the driving groove 105 and is coaxially connected to the wire driving wheel 107. 6. A passive gear 112 coaxially connected to the winch 113 is provided in the cylindrical body 101. The passive gear 112 is meshed with the active gear 106. When the traction rope 103 slides in the wire hole 108, the traction of the traction rope 103 drives the line driving wheel 107 to rotate, and then drives the passive gear 112 to rotate through the active gear 106. The positive and negative rotation of the passive gear 112 can be achieved by adjusting the traction direction of the traction rope 103, and then the line marker 161 can be retracted and released, thereby realizing the calibration of the water surface area.

[0044] The method for improving the efficiency of ship formation passing through the lock is: to retract and extend the traction rope 103 by rotating the retractable and retractable wheels 149 on the upper and lower sides, and to lock the position of the cylinder 101 and the traction rope 103 by migrating the calibration component, thereby driving the calibration component to separate the maximum width area that can pass through the lock in the same formation between the side wall 148 of the dam body and the protruding beam body 145, and to notify the width of the ships that can enter the formation through the external loudspeaker. The ships that meet the width specification will join the formation to participate in passing through the lock, thereby improving the efficiency of passing through the lock.

[0045] like Figure 1 As shown in FIG, a fluid-repellent body 116 is fixedly provided at the lower end of the line mark 161 .

[0046] The body repellent 116 can reduce the influence of the water surface turbulence on the line marker 161 when the line marker 161 is marking a water surface area on the water surface.

[0047] Friction wheels 114 are provided at the upper and lower openings of the outlet 115 .

[0048] The friction wheel 114 can reduce the friction between the line marker 161 and the inner wall of the receiving groove 111. Guiding the line marker 161 by the friction wheel 114 can reduce the friction loss between the line marker 161 and the inner wall of the receiving groove 111 and limit the lead-out end position of the line marker 161.

[0049] The lower opening of the outlet 115 is connected to a countersunk hole 110 opening outward. The countersunk hole 110 cooperates with the fluid-repellent member 116 to prevent the lower end of the line marker 161 from being completely received in the receiving groove 111 .

[0050] The line marker 161 is affixed with a reflective sticker 141 , and the traction rope 103 is provided with a braiding groove 142 .

[0051] The reflective tape 141 is used to enhance the visibility of the line marker 161 , thereby facilitating the ship's crew to more intuitively observe the area marked by the line marker 161 .

[0052] As attached Figure 8 As shown, the traction rope 103 is a flat rope made of multiple strands of rope, and there is a braiding groove 142 on the traction rope 103. The braiding groove 142 can increase the friction between the traction rope 103 and the wire drive wheel 107, the retracting wheel 149 and the guide wheel 147, and increase the friction between the ball 122 and the traction rope 103 when they abut against each other.

[0053] The specific steps of the indicating method using the above-mentioned indicating device for improving the efficiency of ship marshaling through a lock are as follows:

[0054] In the initial state, the storage capstan 109 and the cylinder 101 are stored close to the dam side wall 148. At this time, the line marker 161 is stored in the storage groove 111 to the maximum extent, and the drainage body 116 is engaged with the outlet 115. The slider 126 is located in the middle position of the locking slide groove 121. At this time, the electromagnet 124 is in the off state.

[0055] When the first ship to be prepared to enter the lock enters the waiting area, the electromagnet 124 in each cylinder 101 is energized, and the magnetic interaction between the electromagnet 124 and the permanent magnet 123 pushes the ball 122 to move and clamp the traction rope 103 section in the locking chute 121. At the same time, the retracting wheel 149 rotates and one retracting wheel 149 sends the wire and the other retracting wheel 149 retracts the wire, thereby winding the traction rope 103. The migration of the same point position of the traction rope 103 drives the cylinder 101 to move between the extended beam 145 and the side wall 148 of the dam body, and determines the left and right sides and the second group from right to left through the first ship in position. The area between the receiving winches 109 is calculated by a computer, and the width of the area that can accommodate ships on the left side of the ship is calculated and notified to the ships on the rear side preparing to pass through the lock through the broadcast from the rear side. If the ship width is within the range that can be accommodated by the width of the area, the ship will notify the dispatch room of its own width. At this time, the dispatch room will then use the rolling of the retracting and releasing wheel 149 to drive the subsequent cylinder 101 and the receiving winch 109 to move and calibrate the position, so as to calibrate the area entered by the notified ship. Similarly, the area that can be entered by the specified ship can be calibrated through the receiving winch 109.

[0056] In the process of the cylinder 101 following the movement of the traction rope 103, the traction rope 103 is locked by the ball 122 on the rear side, and the slider 126 on the front side is located in the middle position of the locking slide 121. At this time, the traction rope 103 can be pulled and slid by the traction rope 103 to drive the line driving wheel 107 to rotate, and then the driving gear 106 drives the driven gear 112 to rotate and release the line marker 161, and dragged out by the water flow to form an area division on the water surface, that is, when entering the area division, the traction rope 103 is tightened by the two retracting and releasing wheels 149, so that the cylinder 101 and the storage winch are 109 is suspended above the water surface at a certain distance or on the water surface, and the sliders 126 in the front and rear cylinders 101 slide to lock the traction rope 103, so that when the retracting wheel 149 pulls the traction rope 103, the cylinder 101 and the storage winch 109 are driven to move within the area between the extended beam 145 and the dam side wall 148 to define the area, and the locking restriction of the spheres 122 on the traction rope 103 can drive the line driving wheel 107 to rotate during the movement of the cylinder 101, thereby retracting and releasing the line marker 161, so that the released line marker 161 can be easily observed by the vessel waiting to enter;

[0057] When each ship enters the pending area and prepares to enter the lock, all electromagnets 124 lose power. At the same time, the retractable wheel 149 on one side releases the traction rope 103, causing the cylinder 101 and the storage winch 109 to sink into the water, clearing the waterway, thereby preventing the traction rope 103 from being entangled on the ship's propeller when the ship passes through the area and causing damage to the ship.

Claims

1. An indicator device for improving the efficiency of ship marshaling through a lock, characterized by: The indicating device comprises a protruding beam (145) arranged on the left side of the dam body side wall (148); the protruding beam (145) is fixedly arranged on the dam body on the left side of the dam body side wall (148) via a fixing seat (144); A traction chamber (151) is provided in the side wall (148) of the dam body. Retractable wheels (149) are symmetrically and rotatably provided in the traction chamber (151). The retractable wheels (149) in the traction chamber (151) are driven by driving motors respectively. A guide chamber (146) with an opening facing right is provided in the extending beam body (145). A guide wheel (147) is rotatably provided in the guide chamber (146). A traction rope (103) is wound around the retractable wheel (149). The other end of the traction rope (103) extends out of the traction chamber (151) and is wound around the retractable wheel (149) on the lower side after passing around the guide wheel (147). The rotation of the retractable wheel (149) can drive the traction rope (103) to rotate. Two traction ropes (103) between the extended beam (145) and the dam body side wall (148) are sleeved with more than one set of calibration components, and the calibration components can be locked on the traction ropes (103) or moved on the traction ropes (103) in a controllable manner; The calibration component is composed of two cylinders (101) symmetrically arranged in front and back and a storage winch (109). The two cylinders (101) are placed in front and back and fixedly arranged on the upper end of the storage winch (109). A wire hole (108) is provided in the cylinder (101) and passes through the left and right sides. The front and rear traction ropes (103) pass through the wire holes (108) respectively. A storage groove (111) is provided in the storage winch (109). The lower end of the storage groove (111) is connected to an outlet (115). A winch (113) is rotatably provided in the receiving groove (111), and a line mark (161) is wound on the winch (113). A migration mark assembly (104) is provided between the line holes (108) in one of the cylinders (101). The migration mark assembly (104) drives the winch (113) to rotate by moving the cylinder (101) relative to the traction rope (103), so as to achieve the retraction and release of the line mark (161) and drive the cylinder (101) to move in the area between the extended beam (145) and the dam body side wall (148); The cylinder (101) provided with the migration calibration component (104) is provided with a driving groove (105) whose lower end is connected to the receiving groove (111), the traction rope (103) crosses the driving groove (105), and a wire driving wheel (107) is rotatably provided in the driving groove (105). When the traction rope (103) crosses the driving groove (105), it is wound around the wire driving wheel (107) twice. A driving gear (106) coaxially connected to the wire driving wheel (107) is provided in the driving groove (105), and a driven gear (112) coaxially connected to the winch (113) is provided in the cylinder (101). The driven gear (112) and the driving gear (106) are meshed and connected. When the traction rope (103) slides in the wire hole (108), the traction of the traction rope (103) drives the wire driving wheel (107) to rotate, and then drives the passive gear (112) to rotate through the active gear (106). The positive and negative rotation of the passive gear (112) can be achieved by adjusting the traction direction of the traction rope (103), and then the wire marker (161) can be retracted and released, thereby achieving the calibration of the water surface area.

2. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 1, characterized in that: The migration calibration component (104) includes a locking groove (121) symmetrically arranged in the cylinder (101) and connected to the wire hole (108), a slider (126) is slidably arranged in the locking groove (121), the traction rope (103) passes through the locking groove (121) and the slider (126), and the traction rope (103) and the slider (126) are slidably connected, and an annular ring groove (125) with an outward opening is arranged in the slider (126), and an annular permanent magnet (123) is fixedly arranged on the left and right inner walls of the ring groove (125), and an electromagnet (124) is fixedly arranged on the arc-shaped inner wall around the locking groove (121) and extends into the ring groove (125).

3. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 2, characterized in that: Three balls (122) are respectively provided on the left and right sides of the slider (126) and located in the locking slot (121), and the left and right inner walls of the locking slot (121) are both provided with inclined surfaces. By energizing the electromagnet (124), the slider (126) can slide in the locking slot (121), and the slider (126) pushes the balls (122) and the inclined surfaces on the locking slot (121) to squeeze each other and then squeeze the traction rope (103).

4. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 3, characterized in that: A fluid-repellent material (116) is fixedly provided at the lower end of the line marker (161).

5. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 4, characterized in that: Friction wheels (114) are provided at the upper and lower openings of the outlet (115).

6. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 5, characterized in that: The lower opening of the outlet (115) is connected to a countersunk hole (110) opening outward. The countersunk hole (110) cooperates with the hydrophobic body (116) to prevent the lower end of the line marker (161) from being completely received in the receiving groove (111).

7. The indicator device for improving the efficiency of ship marshaling through a lock according to claim 6, characterized in that: The line marker (161) is affixed with a reflective sticker (141), and the traction rope (103) is provided with a braiding groove (142).

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