Rail type anchor eye adjusting system and method based on piled anchor

Abstract

The invention relates to the technical field of offshore floating type photovoltaic foundations, in particular to a rail type anchor eye adjusting system and method based on pile anchors. The second controller arranged on the whole pile anchor accurately measures the penetration data of the whole pile anchor during penetration, the penetration data is transmitted to the control terminal to be processed, then an instruction is sent to the first controller, the first controller controls the bending moment and torque of the whole pile anchor through the driving shaft on the basis of the instruction, and the safety and high efficiency of the installation process are guaranteed; besides, an anchor eye fixing mode of a traditional pile anchor is changed, an anchor eye track is arranged on the outer side of an anchor body, opening and closing of a baffle are controlled through a control terminal, fixing and moving of the anchor eye are achieved through a built-in pulley, the flexibility of the anchor eye is greatly improved, the angle of an anchor chain for applying a drawing load is conveniently changed in time, and the tensile strength of the anchor chain is improved. The bearing capacity of the whole pile anchor is improved, and the problem that a traditional anchoring assembly is insufficient in bearing capacity is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore floating photovoltaic foundations, and in particular to a track-type anchor eye adjustment system and method based on pile anchors. Background Art

[0002] With the increasingly prominent energy crisis, offshore floating photovoltaic (FPV) is one of the key technologies for my country's coastal provinces to comply with the national energy development strategy. Pile anchors are the commonly used anchoring foundations for FPV, which can fix the photovoltaic floating array in a specific range to avoid being dispersed by sea breeze or ocean currents. It is a key part of the stable operation and safe operation of the system.

[0003] In the related art, the anchor eye of the traditional pile anchor is welded on the anchor body and cannot be moved. However, in actual engineering, due to the differences in floating systems and hydrodynamic characteristics, the traditional pile anchor cannot be flexibly moved under different working conditions, which makes the bearing capacity of the anchor assembly weak.

[0004] Therefore, there is an urgent need to provide a track-type anchor eye adjustment system and method based on pile anchors to solve the problem of insufficient bearing capacity of traditional anchoring components. Summary of the invention

[0005] One or more embodiments of the present invention describe a track-type anchor eye adjustment system and method based on a pile anchor, which can solve the problem of insufficient bearing capacity of traditional anchoring components.

[0006] In a first aspect, an embodiment of the present invention provides a track-type anchor eye adjustment system based on a pile anchor, comprising: a pile anchor as a whole, an anchor eye adjustment assembly, a first controller, a second controller, a drive shaft and a control terminal, wherein:

[0007] The anchor eye adjustment assembly comprises an anchor body track and a latch device, wherein the latch device is arranged in the anchor body track;

[0008] The anchor eye adjustment assembly is arranged outside the pile anchor as a whole, and is used to adjust the position of the anchor eye;

[0009] The first controller is arranged on the upper side of the pile anchor as a whole, and the first controller controls the bending moment and torque of the pile anchor as a whole through the driving shaft;

[0010] The second controller is arranged at the lower side of the pile-anchor assembly, and is used to measure the penetration data of the pile-anchor assembly, wherein the penetration data includes the pile pressing force, pile end resistance and inclination degree;

[0011] The control terminal is used to obtain instructions based on the penetration data measured by the second controller, and send the instructions to the first controller, so that the first controller controls the bending moment and torque of the pile anchor as a whole.

[0012] According to the above embodiment, the latch device includes a first latch assembly and a second latch assembly, the first latch assembly is connected to the second latch assembly, the first latch assembly is used to connect the anchor chain, and the second latch assembly is used to fix the anchor eye position.

[0013] According to the above embodiment, the second latch assembly includes a first baffle, a retractable buckle, a spring, a pulley and a steel cable, the first baffle is arranged on both sides of the second latch assembly, and the buckle, the spring, the pulley and the steel cable are arranged in the second latch assembly;

[0014] The first baffle is used to control the closing state of the latch device, the buckle is used to fix the latch device in the anchor body track, the spring is used to adjust the closing state of the buckle, the pulley is used to control the latch device to slide in the anchor body track, and the steel cable is used to compress the spring.

[0015] According to the above embodiment, the anchor body track includes a plurality of buttonholes, each of the buttonholes includes a second baffle plate arranged outside the buttonhole, and the second baffle plate is used to close the buttonhole;

[0016] There is a one-to-one correspondence between each buttonhole and each buckle.

[0017] According to the above embodiment, the first baffle and the second baffle are both closed in the initial state.

[0018] According to the above embodiment, the control terminal is also used to control the closing state of the first baffle and the second baffle so that the latch device can slide in the anchor body track;

[0019] The control terminal is also used to control the rotation of the pulley to determine the position of the latch device in the anchor track.

[0020] In a second aspect, an embodiment of the present invention provides a rail-type anchor eye adjustment method based on a pile anchor, which is applied to the rail-type anchor eye adjustment system described in the above embodiment, and the method comprises:

[0021] Using the anchor eye adjustment assembly to adjust the position of the anchor eye;

[0022] Using the first controller to control the bending moment and torque of the pile anchor as a whole through the driving shaft;

[0023] Using the second controller to measure the penetration data of the pile anchor as a whole;

[0024] The control terminal is used to obtain instructions based on the penetration data measured by the second controller, and the instructions are sent to the first controller.

[0025] According to the above implementation method, it also includes:

[0026] Using the control terminal to control the closing state of the first baffle and the second baffle;

[0027] The control terminal is used to control the rotation of the pulley.

[0028] According to the above implementation method, the controlling the rotation of the pulley by using the control terminal includes:

[0029] When the control terminal sends a first signal, the pulley is controlled to rotate clockwise to retract the steel cable, so that the spring pops outward;

[0030] When the control terminal sends a second signal, the pulley is controlled to rotate counterclockwise to extend the steel cable, so that the spring is compressed inwardly.

[0031] According to the above implementation method, before using the control terminal to control the closing state of the first baffle and the second baffle, it also includes:

[0032] Utilizing the pulley to rotate counterclockwise to compress the spring inwardly, so as to retract the buckle into the second latch assembly;

[0033] The first baffle plate and the second baffle plate are used to close the button eye and the buckle respectively, so that the latch device can slide in the anchor body track.

[0034] According to an embodiment of the present invention, a track-type anchor eye adjustment system and method based on a pile anchor are provided. The penetration data of the pile anchor as a whole is accurately measured by a second controller arranged on the pile anchor as a whole. The penetration data is transmitted to the control terminal for processing and then sent to the first controller. The first controller controls the bending moment and torque of the pile anchor as a whole through the driving shaft based on the instruction, thereby ensuring the safety and efficiency of the installation process. In addition, the present invention changes the fixed anchor eye form of the traditional pile anchor, arranges an anchor eye track on the outside of the anchor body, controls the opening and closing of the baffle through the control terminal, and fixes and moves the anchor eye through the built-in pulley, thereby greatly improving the flexibility of the anchor eye, so as to timely change the angle of the anchor chain to apply the pulling load, increase the overall bearing capacity performance of the pile anchor, and solve the problem of insufficient bearing capacity of the traditional anchoring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the appearance of a track-type anchor eye adjustment system based on a pile anchor provided in one embodiment of the present invention;

[0037] Figure 2 A schematic structural diagram of a track-type anchor eye adjustment system based on a pile anchor provided in one embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the structure of an anchor eye adjustment assembly provided in one embodiment of the present invention;

[0039] Figure 4 A 3D schematic diagram of the internal structure of a latch device provided in one embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the movable principle of an anchor eye provided by an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of a button hole on the inner side of an anchor eye adjustment assembly provided in one embodiment of the present invention.

[0042] Reference numerals:

[0043] 1-Pile-anchor as a whole;

[0044] 2- Anchor eye adjustment assembly;

[0045] 21-anchor track;

[0046] 201-buttonhole;

[0047] 2001-Second baffle;

[0048] 22- latch device;

[0049] 221-first latch assembly;

[0050] 222-second latch assembly;

[0051] 2221-First baffle

[0052] 2222- Buckle;

[0053] 2223-spring;

[0054] 2224 pulley;

[0055] 2225 steel cable;

[0056] 3- first controller;

[0057] 4- Second controller;

[0058] 5- driving shaft;

[0059] 6-Control terminal. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0061] In order to better understand the solution, let's first explain the anchor eye:

[0062] Floating photovoltaic (FPV) is one of the key technologies for my country's coastal provinces to comply with the national energy development strategy. It uses mooring and anchoring systems to moor photovoltaic modules on the surface of water to generate electricity. It not only overcomes the lack of land resources for onshore photovoltaics, but also effectively reduces construction costs. It has received widespread attention in the industry. Pile anchors are commonly used anchoring foundations for FPV. They can fix the photovoltaic floating array in a specific range to avoid being dispersed by sea breezes or ocean currents. They are a key part of the stable operation and safe operation of the system.

[0063] The connection point between the anchor chain and the anchor foundation is called the anchor eye. During service, the pile anchor is mainly subjected to the tensile load applied to the side of the anchor body by the floating system through the anchor chain, and this load is often at a certain angle to the horizontal direction. Studies have shown that when the anchor eye is located at a position that makes the horizontal displacement of the anchor body larger and the rotation angle smallest, the anchor chain can exert the maximum load-bearing performance. Therefore, for each anchor foundation of FPV, there is an optimal anchor eye position.

[0064] However, the anchor eye of a traditional pile anchor is welded to the anchor body and cannot be moved. In actual engineering, there are differences in floating systems and hydrodynamic characteristics. If the traditional anchor eye form is still used, the bearing capacity of the anchor foundation cannot be fully utilized. Therefore, the present invention proposes a track-type anchor eye adjustment system and method based on pile anchors, which can flexibly adjust the position of the anchor eye on the suction anchor or pile anchor, thereby changing the angle of the anchor chain applying the pulling load, increasing the bearing capacity of the pile anchor, and improving the utilization efficiency of the pile anchor in the offshore floating photovoltaic anchoring array.

[0065] See also Figure 1-2 The embodiment of the present invention provides a track-type anchor eye adjustment system based on a pile anchor, comprising: a pile anchor body 1, an anchor eye adjustment component 2, a first controller 3, a second controller 4, a drive shaft 5 and a control terminal 6, wherein:

[0066] The anchor eye adjustment assembly 2 comprises an anchor body track 21 and a latch device 22, wherein the latch device 22 is arranged in the anchor body track 21;

[0067] The anchor eye adjustment component 2 is arranged outside the pile anchor body 1 and is used to adjust the position of the anchor eye;

[0068] The first controller 3 is arranged on the upper side of the pile anchor 1, and the first controller controls the bending moment and torque of the pile anchor 1 through the driving shaft 5;

[0069] The second controller 4 is arranged at the lower side of the pile-anchor assembly 1, and is used to measure the penetration data of the pile-anchor assembly 1, wherein the penetration data includes the pile pressing force, pile end resistance and inclination degree;

[0070] The control terminal 6 is used to obtain instructions based on the penetration data measured by the second controller 4 and send the instructions to the first controller 3 so that the first controller 3 controls the bending moment and torque of the pile-anchor assembly 1 .

[0071] In this embodiment, the second controller 4 provided on the pile anchor assembly 1 accurately measures the penetration data of the pile anchor assembly 1 during penetration, transmits the penetration data to the control terminal 6 for processing, and then sends an instruction to the first controller 3. The first controller 3 controls the bending moment and torque of the pile anchor assembly 1 through the driving shaft 5 based on the instruction, thereby ensuring the safety and efficiency of the installation process. In addition, the present invention changes the fixed anchor eye form of the traditional pile anchor, arranges an anchor eye track on the outside of the anchor body, controls the opening and closing of the baffle through the control terminal 6, and fixes and moves the anchor eye through the built-in pulley 2224, thereby greatly improving the flexibility of the anchor eye, so as to timely change the angle of the anchor chain to apply the pulling load, thereby increasing the bearing capacity performance of the pile anchor assembly 1.

[0072] Combine the following Figures 1 to 6 The relevant dimensions of the above-mentioned components are introduced.

[0073] exist Figures 1 to 6 Among the dimensions that appear, the length of the pile anchor as a whole 1 does not exceed 50 meters, the outer diameter D of the pile anchor does not exceed 5 meters, the width of the anchor eye adjustment assembly 2 does not exceed 1.0m, the depth of the eyelet 201 and the depth t of the insertion section of the buckle 2222 do not exceed 0.15m, the length of the latch device 22 does not exceed 0.6m, the outer diameter d of the first baffle 2221 and the second baffle 2001 does not exceed 0.15m, the diameter m of the buckle 2222 does not exceed 0.12m, and the length n of the buckle 2222 is recommended not to exceed 0.20m.

[0074] See also Figures 3 to 6 In one embodiment of the present invention, the latch device 22 includes a first latch assembly 221 and a second latch assembly 222. The first latch assembly 221 is connected to the second latch assembly 222. The first latch assembly 221 is used to connect the anchor chain, and the second latch assembly 222 is used to fix the anchor eye position.

[0075] In one embodiment of the present invention, the second latch assembly 222 includes a first baffle 2221, a retractable buckle 2222, a spring 2223, a pulley 2224 and a steel cable 2225, wherein the first baffle 2221 is disposed on both sides of the second latch assembly 222, and the buckle 2222, the spring 2223, the pulley 2224 and the steel cable 2225 are disposed inside the second latch assembly 222;

[0076] The first baffle 2221 is used to control the closing state of the latch device 22, the buckle 2222 is used to fix the latch device 22 in the anchor body track 21, the spring 2223 is used to adjust the closing state of the buckle 2222, the pulley 2224 is used to control the latch device 22 to slide in the anchor body track 21, and the steel cable 2225 is used to compress the spring 2223.

[0077] In this embodiment, the present invention uses signals to control the opening and closing of the baffles on both sides of the latch device 22 and the rotation of the built-in pulley 2224, so as to achieve the fixing and movement of the anchor eye position, and clearly present the mooring status of the entire mooring point array through the control terminal 6, so as to adjust the anchor eye position in time.

[0078] In some embodiments, the outer track of the anchor body is a vertical groove along the outer wall of the anchor body, the first latch assembly 221 is a triangular anchor eye structure connected to the anchor chain, and the second latch assembly 222 is a movable latch that fits well with the track groove.

[0079] In some embodiments, the present invention is not only applicable to pile anchors, but can also be extended to similar anchoring foundations such as suction anchors.

[0080] In one embodiment of the present invention, the anchor body track 21 includes a plurality of buttonholes 201, each of the buttonholes 201 includes a second baffle 2001 disposed outside the buttonhole 201, and the second baffle 2001 is used to close the buttonhole 201;

[0081] There is a one-to-one correspondence between each buttonhole 201 and each buckle 2222 .

[0082] In this embodiment, the second baffle 2001 is opened and closed by an electrical signal, and is initially closed. After opening, the buckle 2222 is ejected into the button hole 201 by the spring 2223 , and the latch device 22 is fixed in the anchor track 21 .

[0083] In one embodiment of the present invention, the first baffle 2221 and the second baffle 2001 are both closed in an initial state.

[0084] In this embodiment, in the initial state, the first baffle 2221 and the second baffle 2001 are both closed in order to allow the latch device 22 to move freely in the anchor track 21 .

[0085] In one embodiment of the present invention, the control terminal 6 is also used to control the closing state of the first baffle 2221 and the second baffle 2001 so that the latch device 22 can slide in the anchor body track 21;

[0086] The control terminal 6 is also used to control the rotation of the pulley 2224 to determine the position of the latch device 22 in the anchor body track 21 .

[0087] In this embodiment, the fixed anchor eye form of the traditional pile anchor is changed, and a track is set on the outside of the anchor body, which greatly improves the flexibility of the anchor eye, so as to timely change the angle of the anchor chain applying the pulling load in the offshore floating photovoltaic anchoring array and increase the bearing capacity performance of the pile anchor.

[0088] In some embodiments, in the initial state, the first baffle 2221 and the second baffle 2001 are both in a closed state, the buckle 2222 is arranged in the latch device 22, and the spring 2223 is in a compressed state. At this time, the latch device 22 can slide freely in the anchor body track 21, and the anchor eye position can be changed arbitrarily.

[0089] Further, when the anchor eye position is adjusted, the control terminal 6 sends an electrical signal to control the first baffle 2221 and the second baffle 2001 to open. At this time, the buckle 2222 pops outward under the action of the spring 2223 and snaps into the buckle 201 inside the latch device 22, so that the anchor eye position is fixed.

[0090] Furthermore, if the anchor eye position needs to be adjusted to adapt to the variable floating structure and complex actual working conditions, the control terminal 6 sends an electrical signal to control the pulley 2224 to rotate counterclockwise, so that the steel cable 2225 is retracted, the spring 2223 is compressed, the buckle 2222 is retracted into the latch device 22, and then the first baffle 2221 and the second baffle 2001 are closed by the electrical signal. At this time, the latch device 22 is free to slide in the anchor body track 21 again, and the anchor eye position can be repeatedly adjusted.

[0091] In a second aspect, an embodiment of the present invention further provides a rail-type anchor eye adjustment method based on a pile anchor, which is applied to the rail-type anchor eye adjustment system mentioned in the above embodiment, and the method includes:

[0092] Use the anchor eye adjustment assembly 2 to adjust the position of the anchor eye;

[0093] The first controller 3 is used to control the bending moment and torque of the pile anchor assembly 1 through the driving shaft 5;

[0094] Measuring the penetration data of the pile-anchor assembly 1 by using the second controller 4;

[0095] The control terminal 6 obtains instructions based on the penetration data measured by the second controller 4 and sends the instructions to the first controller 3 .

[0096] In this embodiment, a second controller 4 is provided at the tip of the pile anchor assembly 1 to measure the penetration data of the pile anchor during penetration, and a first controller 3 is built into the hollow anchor body. After being processed by the control terminal 6, the data is returned to the first controller 3 for adjustment through the drive shaft 5, so that the inclination of the anchor body can be adjusted, thereby ensuring the safety and efficiency of the installation process.

[0097] In one embodiment of the present invention, a method for adjusting a track type anchor eye based on a pile anchor further includes:

[0098] Using the control terminal 6 to control the closing state of the first baffle 2221 and the second baffle 2001;

[0099] The rotation of the pulley 2224 is controlled by the control terminal 6 .

[0100] In one embodiment of the present invention, the control terminal 6 is used to control the rotation of the pulley 2224, including:

[0101] When the control terminal 6 sends the first signal, the control pulley 2224 rotates clockwise to retract the steel cable 2225, so that the spring 2223 pops outward;

[0102] When the control terminal 6 sends the second signal, the control pulley 2224 rotates counterclockwise to extend the steel cable 2225, so that the spring 2223 is compressed inward.

[0103] In one embodiment of the present invention, before using the control terminal 6 to control the closing state of the first baffle 2221 and the second baffle 2001, the method further includes:

[0104] The pulley 2224 is rotated counterclockwise to compress the spring 2223 inward, so that the buckle 2222 is retracted into the second latch assembly 222;

[0105] The button eye 201 and the buckle 2222 are closed by the first baffle plate 2221 and the second baffle plate 2001 , so that the latch device 22 can slide in the anchor body track 21 .

[0106] It can be understood that the rail-type anchor eye adjustment method based on pile anchor provided in an embodiment of the present invention and the rail-type anchor eye adjustment system provided in the above embodiment are based on the same inventive concept, and therefore both have the same beneficial effects. The beneficial effects of the rail-type anchor eye adjustment method based on pile anchor will not be elaborated herein.

[0107] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the statement "comprise one..." do not exclude the existence of other identical factors in the process, method, article or equipment including the elements.

[0108] Finally, it should be noted that the above are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A track-type anchor eye adjustment system based on pile anchors, It is characterized in that include: The pile anchor assembly, the anchor eye adjustment assembly, the first controller, the second controller, the drive shaft and the control terminal, wherein: The anchor eye adjustment assembly comprises an anchor body track and a latch device, wherein the latch device is arranged in the anchor body track; The anchor eye adjustment assembly is arranged outside the pile anchor as a whole, and is used to adjust the position of the anchor eye; The first controller is arranged on the upper side of the pile anchor as a whole, and the first controller controls the bending moment and torque of the pile anchor as a whole through the driving shaft; The second controller is disposed at the lower side of the pile-anchor assembly and is used to measure the penetration data of the pile-anchor assembly, wherein the penetration data includes pile pressing force, pile end resistance and inclination degree; The control terminal is used to obtain instructions based on the penetration data measured by the second controller, and send the instructions to the first controller, so that the first controller controls the bending moment and torque of the pile anchor as a whole.

2. The rail anchor eye adjustment system according to claim 1, It is characterized in that The latch device comprises a first latch assembly and a second latch assembly, wherein the first latch assembly is connected to the second latch assembly, the first latch assembly is used to connect the anchor chain, and the second latch assembly is used to fix the anchor eye position.

3. The rail anchor eye adjustment system according to claim 2, It is characterized in that The second latch assembly includes a first baffle, a retractable buckle, a spring, a pulley and a steel cable, wherein the first baffle is arranged on both sides of the second latch assembly, and the buckle, the spring, the pulley and the steel cable are arranged inside the second latch assembly; The first baffle is used to control the closing state of the latch device, the buckle is used to fix the latch device in the anchor body track, the spring is used to adjust the closing state of the buckle, the pulley is used to control the latch device to slide in the anchor body track, and the steel cable is used to compress the spring.

4. The rail anchor eye adjustment system according to claim 3, It is characterized in that The anchor body track includes a plurality of button holes, each of the button holes includes a second baffle plate arranged outside the button hole, and the second baffle plate is used to close the button hole; There is a one-to-one correspondence between each buttonhole and each buckle.

5. The rail anchor eye adjustment system according to claim 4, It is characterized in that The first baffle and the second baffle are both closed in an initial state.

6. The rail anchor eye adjustment system according to claim 5, It is characterized in that The control terminal is also used to control the closing state of the first baffle and the second baffle so that the latch device can slide in the anchor body track; The control terminal is also used to control the rotation of the pulley to determine the position of the latch device in the anchor track.

7. A method for adjusting the track anchor eye based on pile anchors. It is characterized in that Applied to the rail anchor eye adjustment system according to claim 6, the method comprises: Using the anchor eye adjustment assembly to adjust the position of the anchor eye; Using the first controller to control the bending moment and torque of the pile anchor as a whole through the driving shaft; Using the second controller to measure the penetration data of the pile anchor as a whole; The control terminal is used to obtain instructions based on the penetration data measured by the second controller, and the instructions are sent to the first controller.

8. The method for adjusting the rail anchor eye according to claim 7, It is characterized in that Also includes: Using the control terminal to control the closing state of the first baffle and the second baffle; The control terminal is used to control the rotation of the pulley.

9. The method for adjusting the rail anchor eye according to claim 8, It is characterized in that The controlling the rotation of the pulley by using the control terminal comprises: When the control terminal sends a first signal, the pulley is controlled to rotate clockwise to retract the steel cable, so that the spring pops outward; When the control terminal sends a second signal, the pulley is controlled to rotate counterclockwise to extend the steel cable, so that the spring is compressed inwardly.

10. The method for adjusting the rail anchor eye according to claim 9, It is characterized in that Before using the control terminal to control the closing state of the first baffle and the second baffle, the method further includes: Utilizing the pulley to rotate counterclockwise to compress the spring inwardly, so as to retract the buckle into the second latch assembly; The first baffle plate and the second baffle plate are used to close the button eye and the buckle respectively, so that the latch device can slide in the anchor body track.

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