Method for independent unlocking of lower rails for rail-changing train transport of rails

Abstract

The application discloses a lower-layer rail independent unlocking method for transporting rails by a rail-changing train, and comprises the following steps: step S1, a spacer rail locking system is built on the rail-changing train at intervals; step S2, a reversible locking bolt is turned to a vertical state through a cross-rail operation tool, then a lifting locking pressure iron assembly is driven to be pressed to be completely connected with the reversible locking bolt in the vertical state through a pressure iron lifting auxiliary tool, so that the rails in a first-layer middle area are locked, and finally the rails in a first-layer remaining side area are manually locked through independent rail locking units; step 3, the lifting locking pressure iron assembly is driven to be lifted to be completely separated from the reversible locking bolt through the pressure iron lifting auxiliary tool, so that the rails in the first-layer middle area are unlocked, and then the independent rail locking units in the first-layer remaining side area are manually unloaded, and the application has the advantages of rail selection, loading and unloading at any position, improved rail unloading efficiency, meeting on-site operation requirements, novel conception, sufficient operation space and the like.

Description

Technical Field

[0001] This invention belongs to the field of rail locking technology, specifically relating to a method for independently unlocking the lower rail used in rail-changing trains transporting rails. Background Technology

[0002] When transporting rails using existing rail-changing trains, the bottom layer must be filled and locked before loading and locking the top layer. When loading or unloading the bottom layer rails, the top layer rails must be unlocked and removed before the bottom layer can be handled. Therefore, existing long-rail vehicles lack the ability to select and unload rails at arbitrary locations. However, when it's necessary to move rails unloaded from one location to another for installation, the current practice of randomly installing rails on the transport vehicle at any position on the upper or lower layers to improve efficiency results in rails not being uniformly allocated for all specifications. Furthermore, when the required rail lengths differ at another location—for example, if the required rail specification is located on the bottom layer—currently, only unloading all the top layer rails before proceeding with the bottom layer leads to low unloading efficiency, insufficient on-site operational flexibility, and an inability to meet operational needs. Summary of the Invention

[0003] This invention aims to provide a method for independently unlocking the lower rails of rails transported by rail-changing trains. This method allows for flexible unlocking of the rails, meets operational requirements, and solves the problem that existing long-rail vehicles do not have the function of selecting and unloading rails at any position, resulting in the inability to uniformly allocate and install rails of all specifications and meet on-site operational needs.

[0004] Therefore, the technical solution adopted by the present invention is as follows: a method for independently unlocking the lower rail of a rail-transporting train, comprising the following steps:

[0005] Step S1: Install a layered rail locking system on the front and back of the rail-changing train, and then fill the first and second layers with rails. First, lock the rails of the second layer with an independent rail locking unit.

[0006] The interlayer rail locking system includes column mechanisms spaced apart on the left and right, and two sets of rail support beam mechanisms mirror-symmetrically overlapped on the column mechanisms. Each rail support beam mechanism includes upper and lower corresponding roller beams and pressure beams. The roller beam includes a main body, several lower support rollers spaced apart on the main body, several locking lower pressure blocks spaced apart in the middle area of ​​the main body, and a reversible locking bolt vertically rotatable on the locking lower pressure block. The lower support rollers support the lower layer of rails, and the reversible locking bolt can rotate 90° vertically outward and is located on the outer side between the two lower support rollers. The pressure beam includes a main body, several upper support rollers spaced apart at the top of the main body, and a lifting locking pressure assembly located inside the main body. The lifting locking pressure assembly corresponds one-to-one with the reversible locking bolt, and the upper support rollers support the upper layer of rails.

[0007] Step S2: Lock the rails of the first layer (excluding the side rails) when the second layer is full of rails; after flipping the reversible locking bolt to the vertical position using the rail crossing operation tool, use the pressure iron lifting auxiliary tool to drive the lifting locking pressure iron assembly down to fully engage with the vertical reversible locking bolt, thereby locking the rails in the middle area of ​​the first layer; finally, manually lock the rails in the remaining side areas of the first layer using the independent rail locking unit.

[0008] Step 3: With the second layer of rails fully arranged, unlock the rails on the non-side side of the first layer; use the pressure iron lifting auxiliary tool to move the lifting locking pressure iron assembly up until it is completely disengaged from the flip-up locking bolt, thereby unlocking the rails in the middle area of ​​the first layer, and then manually remove the independent rail locking units in the remaining side areas of the first layer.

[0009] As a preferred embodiment of the above scheme, the column mechanism includes a rotating shaft column and a locking beam column, both of which are symmetrical in structure. The two ends of the roller beam and the pressure beam are respectively attached to the rotating shaft column and the locking beam column. The pressure beam can be rotated outward horizontally through the rotating shaft column. The pressure beam is installed on the rotating shaft column by rotating it outward horizontally. After unlocking all the upper rails, it can be opened outward and completely moved to make room, effectively avoiding affecting the disassembly and assembly of the lower rails. The structural design is reasonable.

[0010] Further preferably, the lifting and locking pressure iron assembly includes a pressure iron base fixed inside the main body of the pressure iron beam, a pressure iron housing located inside the pressure iron base, and a locking post rotatably installed inside the pressure iron housing. The pressure iron housing has side wings that can press down on adjacent steel rails on its left and right sides, and an unlocking and upward lifting ring on the side away from the upper support roller. The side wings of adjacent pressure iron housings that are obliquely arranged can be staggered to avoid collision while pressing down on the steel rails on the left and right sides, thereby locking the steel rail located in the middle. The design structure is ingenious and reasonable. The top edge of the locking post has symmetrically provided blocks that extend outward and can be locked on the pressure iron base, thereby fixing the locking post. The top of the locking post has an internal hexagonal interface and the bottom has a threaded hole, which facilitates operation and docking. The design structure is reasonable.

[0011] A further preferred embodiment is that the top of the pressure iron base is provided with a square opening for the unlocking and upward-moving lifting ring to pass through, and the top of the pressure iron base is provided with a fixed through hole that fits with the outer wall of the top of the locking pin, and a short anti-rotation post is provided around the fixed through hole to prevent the locking pin from self-rotating and unlocking due to vibration and slippage. The structure is ingeniously designed and has high practical value. When the unlocking and upward-moving lifting ring is pulled up to cause the top of the locking pin to detach from the pressure iron base, the locking pin can be rotated through the internal hexagonal interface until the stop block can fall on the pressure iron base, thereby driving the pressure iron housing to be fixed in the pressure iron base together. It needs to be raised above the anti-rotation short post before the locking pin can be self-rotated.

[0012] Further preferably, the inner wall of the pressure iron housing is provided with a limiting step that matches the outer wall of the locking post, the upper outer wall of the locking post is provided with a circumferential semicircular groove, and the pressure iron housing is provided with through holes spaced apart on the left and right sides of the circumferential semicircular groove for the insertion of positioning pins. The diameter of the positioning pin matches the diameter of the circumferential semicircular groove, and the inner side passes horizontally through the circumferential semicircular groove to ensure the stability of the installation. This provides axial limiting and fixing of the locking post, ensuring a stable connection between the pressure iron housing and the locking post, and ensuring that the locking post can only rotate and cannot move up and down relative to the pressure iron housing. The design is ingenious, and the structure is interlocked.

[0013] More preferably, a rubber pad is installed at the bottom of the side wing, and a rubber pad is installed between the lower outer wall of the pressure iron housing and the pressure iron base. The rubber pad effectively prevents the parts from directly contacting each other and causing wear, thus reducing the service life of the parts. The inner end of the flip-locking bolt is integrally provided with a rotating main block that is inserted into the center groove of the locking lower pressure block and connected by a pin. A rubber pad is provided between one side of the rotating main block and the center groove of the locking lower pressure block.

[0014] A further preferred embodiment features inverted "T"-shaped mounting grooves spaced apart on the top of the pressure beam and on the left and right sides of the roller beam, each equipped with an independent rail locking unit to lock the rails located on the upper and lower sides. The bottom of the pressure beam has notches corresponding to the left and right sides of the roller beam for installing and removing the independent rail locking units. This design is reasonable, reducing the cost of locking the bottom rails. Only the lifting and locking pressure beam assembly needs to be installed in the middle area of ​​the roller beam. By providing notches at the bottom of the pressure beam corresponding to the left and right sides of the roller beam to allow for manual operation, independent disassembly of the bottom side rails is ensured. This ingenious design reduces costs.

[0015] A further preferred embodiment includes an inverted "T"-shaped locking bolt that engages with an inverted "T"-shaped mounting groove and an independent locking block mounted on the inverted "T"-shaped locking bolt and pressing against adjacent rails. The vertical thread of the inverted "T"-shaped locking bolt passes through the gap between adjacent rails and is secured to the independent locking block with a nut. The adjacent independent locking units lock the rail in the middle, resulting in a rational design and simple, quick operation.

[0016] More preferably, the iron pressing lifting auxiliary tool includes a tool stabilizer that can be fixed between adjacent rails and a manual lifting linkage installed on the tool stabilizer and inserted into the hexagonal interface at the top of the lifting and locking iron pressing assembly.

[0017] More preferably, the cross-track operating tool includes a "T"-shaped rod and a bolt-flipping horizontal plate located at the bottom of the "T"-shaped rod. One side of the bolt-flipping horizontal plate is equipped with a lifting hook that can hook onto the unlocking and upward-moving lifting ring, and the other side is provided with a notch for inserting a flip-locking bolt, thereby enabling the flip-locking bolt to switch between a horizontal and a vertical state.

[0018] The beneficial effects of this invention are:

[0019] (1) Compared with the existing long rail vehicles which do not have the function of loading and unloading rails at any position, this solution builds a layered rail locking system at intervals on the front and rear of the rail replacement train. After the flip-locking bolts are flipped to the vertical position by the cross-rail operation tool, the lifting and locking pressure iron assembly is driven down to fully engage with the vertical flip-locking bolts by the pressure iron lifting auxiliary tool, or moved up to completely disengage from the flip-locking bolts. This allows for individual locking or unlocking of rails at any position on the upper and lower layers, without the need to unlock rails layer by layer from the upper layer to the lower layer. Moreover, when loading rails, they can be uniformly loaded on the upper or lower layer according to the rail specifications. At the same time, it can also improve the rail unloading efficiency, achieving two goals at once. It enables rail loading and unloading at any position, is flexible in operation, and meets the needs of on-site operations.

[0020] (2) The flip-locking bolt is located between the two lower support rollers. When the adjacent left and right lifting locking pressure iron components are fully connected with the corresponding flip-locking bolt, the rail between the two lifting locking pressure iron components can be fully locked. The concept is novel, the design is ingenious, and the structure is interlocked.

[0021] (3) The flip-locking bolt installed on the locking lower pressure block can rotate 90° outward vertically and flip outward to leave enough working space without conflicting with other parts. The spatial layout is reasonable. Therefore, the lower support roller needs to be installed inside the roller beam, while the upper support roller is set on the top of the main body of the pressure iron beam and is located on the outside. Therefore, the upper support roller and the lower support roller are arranged in a staggered manner, which not only ensures the operating space but also ensures that the upper and lower layers of the column mechanism are distributed and will not be concentrated on one side to bear the load, thus ensuring the stability of the column mechanism. The design is reasonable.

[0022] In summary, this invention has the advantages of allowing for arbitrary selection of rails for loading and unloading, improving rail unloading efficiency, meeting on-site operation requirements, having a novel design, providing ample operating space, and ensuring the stability of the column mechanism. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the interlayer rail locking system (the independent rail locking unit of the upper rail is not shown).

[0024] Figure 2 for Figure 1 The front view (showing the independent rail locking unit of the upper rail).

[0025] Figure 3 for Figure 1 The left view.

[0026] Figure 4 Top view of the lifting locking pressure plate assembly fully engaged with the flip-up locking bolt.

[0027] Figure 5 This is a top view of the flip-locking bolt in its unlocked state.

[0028] Figure 6 for Figure 2 Partial sectional view.

[0029] Figure 7 This is a schematic diagram of the exploded structure of the lifting and locking pressure iron assembly parts.

[0030] Figure 8 This diagram shows the lifting locking pressure plate assembly and the flip-up locking bolt in an unconnected and unlocked state.

[0031] Figure 9 This is a schematic diagram of step S2 of the present invention.

[0032] Figure 10 This is a schematic diagram of step S3 of the present invention. Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0034] Combination Figure 1 — Figure 10 As shown, a method for independently unlocking the lower rails used in rail-changing trains is described, with the following specific implementation steps:

[0035] Step S1: Install a layered rail locking system on the front and rear of the rail-changing train, and then fill the first and second layers with rails 1. First, lock the second layer of rails 1 through the independent rail locking unit 6.

[0036] The interlayer rail locking system consists of column mechanisms spaced apart on the left and right, and two sets of rail support beam mechanisms that are mirror-symmetrically connected to the column mechanisms.

[0037] The column mechanism consists of a pivot column 4 and a locking beam column 5, both of which are symmetrical in structure.

[0038] The rail support beam mechanism consists of upper and lower corresponding roller beams 2 and pressure beams 3.

[0039] Both ends of the roller beam 2 and the pressure beam 3 are respectively attached to the rotating shaft column 4 and the locking beam column 5, and the pressure beam 3 can be rotated outward horizontally through the rotating shaft column 4.

[0040] The roller beam 2 consists of a roller beam body 24, several lower support rollers 21 spaced apart on the roller beam body 24, several locking lower pressure blocks 22 spaced apart in the middle area of ​​the roller beam body 24, and a flip-up locking bolt 23 that can be vertically rotatably mounted on the locking lower pressure block 22.

[0041] The lower support roller 21 is used to support the lower rail 1.

[0042] The flip-locking bolt 23 can rotate 90° outward vertically and is located on the outer side between the two lower support rollers 21.

[0043] The inner end of the flip-locking bolt 23 is integrally provided with a central groove for the insertion locking pressure block 22 and is connected to the rotating main block 231 by a pin.

[0044] A rubber pad 9 is provided between one side of the rotating main block 231 and the center groove of the locking lower pressure block 22.

[0045] The pressure beam 3 consists of a pressure beam body 33, several upper support rollers 31 spaced apart on the top of the pressure beam body 33, and a lifting and locking pressure beam assembly 32 located inside the pressure beam body 33.

[0046] The lifting locking pressure plate assembly 32 and the flip-up locking bolt 23 are in one-to-one correspondence.

[0047] The upper support roller 31 is used to support the upper rail 1.

[0048] When the upper rail 1 is full, the lifting locking clamp assembly 32 is pressed down to fully engage with the vertically reversible locking bolt 23, or moved up to fully disengage from the reversible locking bolt 23, thereby independently locking or unlocking the lower rail 1.

[0049] The end of the iron beam 3 near the rotating shaft column 4 is integrally equipped with a rotating cylinder 35.

[0050] The rotating drum 35 is mounted on the rotating main shaft of the rotating shaft column 4 through bearings arranged at intervals above and below, thereby realizing the outward horizontal rotation of the pressure beam 3.

[0051] The lifting and locking pressure iron assembly 32 consists of a pressure iron base 321 fixed inside the pressure iron beam body 33, a pressure iron housing 322 located inside the pressure iron base 321, and a locking pin 323 rotatably installed inside the pressure iron housing 322.

[0052] The pressure iron housing 322 has side wings 322a on the left and right sides that can press down the adjacent steel rail 1, and an unlocking and lifting ring 324 is provided on the side away from the upper support roller 31.

[0053] The top edge of the locking post 323 is symmetrically provided with a stop 323a that extends outward and can be locked onto the pressure iron base 321.

[0054] The locking post 323 has an internal hexagonal interface at the top and a threaded hole at the bottom.

[0055] The top of the pressure base 321 is provided with a square opening through which the lifting ring 324 can be unlocked and moved upward.

[0056] The top of the pressure iron base 321 is provided with a fixing through hole that fits with the outer wall of the top of the locking post 323, and anti-rotation short posts are provided around the fixing through hole.

[0057] When the lifting and unlocking ring 324 is pulled up, the top of the locking pin 323 is disengaged from the pressure iron base 321. The locking pin 323 can be rotated through the internal hexagonal interface until the stop block 323a falls on the pressure iron base 321, thereby fixing the pressure iron housing 322 together inside the pressure iron base 321.

[0058] The inner wall of the pressure iron housing 322 is provided with a limiting step that matches the outer wall of the locking post 323, and the upper outer wall of the locking post 323 is provided with a circumferential semi-circular groove.

[0059] The pressure iron housing 322 has through holes spaced on the left and right sides of the circumferential semicircular groove for the insertion of the positioning pin 322b. The diameter of the positioning pin 322b matches the diameter of the circumferential semicircular groove, and it passes horizontally through the circumferential semicircular groove, thereby axially limiting and fixing the locking pin 323.

[0060] Rubber pads 9 are installed at the bottom of the side wing 322a.

[0061] A rubber pad 9 is installed between the lower outer wall of the pressure iron housing 322 and the pressure iron base 321.

[0062] The locking beam column 5 is equipped with a locking component at the end of the corresponding iron beam 3.

[0063] The locking assembly consists of a pressure beam baffle 51 with vertically spaced vertical limiting pressure beams 3 at their ends, a locking iron 52 rotatably mounted on the lower pressure beam baffle 51, and a stop iron 53 rotatably mounted on the upper pressure beam baffle 51.

[0064] When the locking iron 52 is rotated to the vertical position, the top of the locking iron 52 is fixed by the stop iron 53 which is rotated to the horizontal position, and the locking is achieved by combining with the end of the transverse limiting pressure iron beam 3 on the side wall of the locking beam column 5.

[0065] The upper part of the pressure beam 3 and the left and right sides of the roller beam 2 are provided with inverted "T" shaped mounting grooves at intervals, and are equipped with independent rail locking units 6, so as to lock the steel rails 1 located on the upper and lower sides. The bottom of the pressure beam 3 is provided with notches 34 for installing and removing the independent rail locking units 6 corresponding to the left and right sides of the roller beam 2.

[0066] The independent rail locking unit 6 consists of an inverted "T" shaped locking bolt 61 that snaps into an inverted "T" shaped mounting groove and an independent locking block 62 that is mounted on the inverted "T" shaped locking bolt 61 and presses against the adjacent rail 1.

[0067] The vertical thread of the inverted "T"-shaped locking bolt 61 passes through the gap between adjacent rails 1 and is fastened to the independent locking block 62 by a nut.

[0068] Step S2: With the second layer of rails 1 fully arranged, lock the rails 1 of the non-side first layer; after flipping the reversible locking bolt 23 to the vertical position using the cross-rail operation tool 7, then use the pressure iron lifting auxiliary tool 8 to drive the lifting locking pressure iron assembly 32 down to fully engage with the vertical reversible locking bolt 23, thereby locking the rails 1 in the middle area of ​​the first layer; finally, manually lock the rails 1 in the remaining side areas of the first layer using the independent rail locking unit 6.

[0069] The iron pressing lifting auxiliary tool 8 consists of a tool stabilizer 81 that can be fixed between adjacent steel rails 1 and a manual lifting link 82 that is installed on the tool stabilizer 81 and can be inserted into the hexagonal interface at the top of the lifting and locking iron pressing assembly 32.

[0070] The cross-track operation tool 7 consists of a "T"-shaped rod 71 and a bolt-flipping horizontal plate 72 located at the bottom of the "T"-shaped rod 71.

[0071] The bolt flipping horizontal plate 72 has a lifting hook 73 on one side that can hook the unlocking and moving lifting ring 324, and a notch on the other side that can be inserted into the flip-locking bolt 23, so that the flip-locking bolt 23 can be switched between horizontal and vertical states.

[0072] Step 3: With the second layer of rails 1 fully arranged, unlock the rails 1 on the non-side side of the first layer; use the lifting and lowering auxiliary tool 8 to move the lifting and locking pressure plate assembly 32 up until it is completely disengaged from the flip-up locking bolt 23, thereby unlocking the rails 1 in the middle area of ​​the first layer, and then manually remove the independent rail locking units 6 in the remaining side areas of the first layer.

[0073] When the manual lifting linkage 82 moves the locking pin 323 down to the lower threaded hole and fully engages with the vertically reversible locking bolt 23, the side wings 322a of the pressure iron housing 322 press tightly against the adjacent rail 1, and the side wings 322a of the left and right adjacent pressure iron housings 322 can achieve left and right locking of the middle rail 1.

[0074] When the manual lifting linkage 82 moves the locking pin 323 upward and completely disengages from the flip-locking bolt 23, the lifting hook 73 pulls up to unlock and move the lifting ring 324 upward, which in turn moves the pressure iron housing 322 upward. The locking pin 323 can be turned by the manual lifting linkage 82 until the stop block 323a passes through the pressure iron base 321 and is higher than the anti-rotation short pin before being rotated and locked for fixed storage.

Claims

1. A method for independently unlocking the lower rail of a rail-transporting train, characterized in that, Includes the following steps: Step S1: Install a layered rail locking system on the front and back of the rail-changing train, and then fill the first and second layers with rails (1). First, lock the second layer of rails (1) through an independent rail locking unit (6). The interlayer rail locking system includes column mechanisms spaced apart on the left and right, and two sets of rail support beam mechanisms mirror-symmetrically overlapped on the column mechanisms. The rail support beam mechanism includes upper and lower corresponding roller beams (2) and pressure beams (3). The roller beam (2) includes a roller beam body (24), several lower support rollers (21) spaced apart on the roller beam body (24), several locking lower pressure blocks (22) spaced apart in the middle area of ​​the roller beam body (24), and reversible locking bolts (23) that can be vertically rotatably installed on the locking lower pressure blocks (22). The wheel (21) is used to support the lower rail (1). The flip-locking bolt (23) can rotate 90° outward vertically and is located on the outer side between the two lower support rollers (21). The pressure beam (3) includes a pressure beam body (33), several upper support rollers (31) spaced apart on the top of the pressure beam body (33), and a lifting and locking pressure assembly (32) located inside the pressure beam body (33). The lifting and locking pressure assembly (32) corresponds one-to-one with the flip-locking bolt (23). The upper support roller (31) is used to support the upper rail (1). Step S2: Lock the non-side rails of the first layer when the second layer is full of rails (1); after flipping the reversible locking bolt (23) to the vertical position by using the cross-rail operation tool (7), then use the pressure iron lifting auxiliary tool (8) to drive the lifting locking pressure iron assembly (32) down to fully engage with the vertical reversible locking bolt (23), thereby locking the rails (1) in the middle area of ​​the first layer; finally, manually lock the remaining side rails (1) of the first layer by using the independent rail locking unit (6). Step 3: With the second layer of rails (1) fully arranged, unlock the rails (1) of the non-side first layer; use the lifting and lowering auxiliary tool (8) to move the lifting and locking pressure plate assembly (32) up until it is completely disengaged from the flip-up locking bolt (23), thereby unlocking the rails (1) in the middle area of ​​the first layer, and then manually remove the independent rail locking units (6) of the remaining side areas of the first layer.

2. The method for independently unlocking the lower rail of a rail-transporting train according to claim 1, characterized in that: The column mechanism includes a pivot column (4) and a locking beam column (5) that are both symmetrical in front and back. The two ends of the roller beam (2) and the pressure beam (3) are respectively attached to the pivot column (4) and the locking beam column (5), and the pressure beam (3) can be rotated outward horizontally through the pivot column (4).

3. The method for independently unlocking the lower rail of a rail-transporting train according to claim 1, characterized in that: The lifting and locking pressure iron assembly (32) includes a pressure iron base (321) fixed inside the pressure iron beam body (33), a pressure iron housing (322) located inside the pressure iron base (321), and a locking post (323) rotatably installed inside the pressure iron housing (322). The pressure iron housing (322) has side wings (322a) that can press down on the adjacent rails (1) on the left and right sides, and an unlocking and lifting ring (324) on the side away from the upper support roller (31). The top edge of the locking post (323) is symmetrically provided with a stop block (323a) that extends outward and can be locked on the pressure iron base (321). The top of the locking post (323) is provided with an internal hexagonal interface and the bottom is provided with a threaded hole.

4. The method for independently unlocking the lower rail of a rail-transporting train according to claim 3, characterized in that: The top of the pressure base (321) is provided with a square opening through which the unlocking and lifting ring (324) passes. The top of the pressure base (321) is provided with a fixed through hole that fits with the outer wall of the top of the locking post (323). A short anti-rotation post is provided around the fixed through hole. When the unlocking and lifting ring (324) is pulled up and the top of the locking post (323) is disengaged from the pressure base (321), the locking post (323) can be rotated through the internal hexagonal interface until the stop block (323a) can fall on the pressure base (321), thereby driving the pressure housing (322) to be fixed together in the pressure base (321).

5. The method for independently unlocking the lower rail of a rail-transporting train according to claim 3, characterized in that: The inner wall of the pressure iron housing (322) is provided with a limiting step that matches the outer wall of the locking post (323). The upper outer wall of the locking post (323) is provided with a circumferential semicircular groove. The pressure iron housing (322) is provided with through holes at intervals on the left and right sides of the circumferential semicircular groove for the insertion of the positioning pin (322b). The diameter of the positioning pin (322b) matches the diameter of the circumferential semicircular groove and passes horizontally through the circumferential semicircular groove, thereby axially limiting and fixing the locking post (323).

6. The method for independently unlocking the lower rail of a rail-transporting train according to claim 3, characterized in that: A rubber pad (9) is installed at the bottom of the side wing (322a). A rubber pad (9) is installed between the lower outer wall of the pressure iron housing (322) and the pressure iron base (321). The inner end of the flip-locking bolt (23) is integrally provided with a rotating main block (231) that is inserted into the center groove of the locking lower pressure block (22) and connected by a pin. A rubber pad (9) is provided between one side of the rotating main block (231) and the center groove of the locking lower pressure block (22).

7. The method for independently unlocking the lower rail of a rail-transporting train according to claim 2, characterized in that: The pressure beam (3) and the left and right sides of the roller beam (2) are provided with inverted "T" shaped mounting grooves at intervals, and are equipped with independent rail locking units (6) to lock the rails (1) located on the upper and lower sides. The bottom of the pressure beam (3) is provided with notches (34) for installing and removing the independent rail locking units (6) in the left and right sides of the roller beam (2).

8. The method for independently unlocking the lower rail of a rail-transporting train according to claim 7, characterized in that: The independent rail locking unit (6) includes an inverted "T"-shaped locking bolt (61) that snaps into an inverted "T"-shaped mounting groove and an independent locking block (62) that is mounted on the inverted "T"-shaped locking bolt (61) and presses against the adjacent rail (1). The vertical screw of the inverted "T"-shaped locking bolt (61) passes through the gap between the adjacent rails (1) and is fastened to the independent locking block (62) by a nut.

9. A method for independently unlocking the lower rail of a rail-transporting train according to claim 1, characterized in that: The iron pressing lifting auxiliary tool (8) includes a tool stabilizer (81) that can be fixed between adjacent rails (1) and a manual lifting link (82) that is installed on the tool stabilizer (81) and can be inserted into the hexagonal interface at the top of the lifting locking iron assembly (32).

10. A method for independently unlocking the lower rail of a rail-transporting train according to claim 4, characterized in that: The cross-track operation tool (7) includes a "T"-shaped rod (71) and a bolt flipping horizontal plate (72) located at the bottom of the "T"-shaped rod (71). The bolt flipping horizontal plate (72) has a lifting hook (73) on one side that can hook the unlocking upward lifting ring (324) and a notch on the other side that can be inserted into the flip-locking bolt (23), thereby enabling the flip-locking bolt (23) to switch between horizontal and vertical states.

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