A locking system for interlayer rails

Abstract

The invention discloses a locking system for an interlayer rail, comprising a column mechanism and a rail supporting beam mechanism, the column mechanism comprising a rotating shaft column and a locking beam column, the rail supporting beam mechanism comprising a roller beam and a pressure iron beam corresponding to the upper and lower parts, the roller beam comprising a roller beam body, a lower supporting belt roller, a locking lower pressure block and a reversible locking bolt, the lower supporting belt roller is used to receive the rail of the lower layer, the reversible locking bolt can be vertically rotated 90° outwards and is correspondingly located on the outer side between the two lower supporting belt rollers; the pressure iron beam comprises a pressure iron beam body, a plurality of upper supporting belt rollers spaced apart on the top of the pressure iron beam body and a lifting and locking pressure iron assembly located on the inner side of the pressure iron beam body, the lifting and locking pressure iron assembly corresponds one by one to the reversible locking bolt, the upper supporting belt roller is used to receive the rail of the upper layer, the invention has the advantages of selective loading and unloading of rails at any position, improving rail unloading efficiency, meeting on-site operation requirements, novel conception, sufficient operating space, and stability of the column mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of rail locking, and in particular relates to an interlayer rail locking system. Background Art

[0002] When existing rail-changing trains transport rails, they must first fill the bottom layer and lock it before loading the upper layer of rails and locking it; when unloading rails, they must first unlock and remove the upper layer of rails before operating the lower layer of rails. Therefore, existing long-rail vehicles do not have the function of selecting and loading and unloading rails at any position. However, once it is necessary to move the unloaded rails from one place to another for installation, the rails are generally installed randomly at any position on the upper and lower layers when they are installed on the rail transport vehicle in order to improve installation efficiency. As a result, the length of the rails cannot be uniformly distributed and installed according to all specifications. However, when the required length of the rails at another location is inconsistent, for example, the required specification of the rails happens to be located on the lower layer, but currently all the upper layer rails can only be removed before the lower layer rails can be operated, resulting in low rail unloading efficiency, insufficient on-site operation flexibility, and inability to meet operational needs. Summary of the invention

[0003] The present invention aims to provide a locking system for interlayer rails, which can flexibly unlock rails to meet operation requirements and solve the problem that the existing long rail vehicles do not have the function of selecting and loading and unloading rails at any position, resulting in that the length of the rails cannot be uniformly allocated and installed in all specifications and cannot meet on-site operation requirements.

[0004] To this end, the technical solution adopted by the present invention is: a kind of interlayer rail locking system, including a column mechanism arranged at intervals on the left and right and two groups of rail support beam mechanisms symmetrically overlapped on the column mechanism in front and back, the column mechanism includes a rotating shaft column and a locking beam column both of which are symmetrical in front and back structure, the rail support beam mechanism includes a roller beam and a pressure beam corresponding to the upper and lower parts, the two ends of the roller beam and the pressure beam are respectively overlapped on the rotating shaft column and the locking beam column, and the pressure beam can be horizontally rotated outward through the rotating shaft column, the roller beam includes a roller beam body, a plurality of lower support rollers arranged at intervals on the roller beam body, a plurality of locking lower pressure blocks arranged at intervals in the middle area of ​​the roller beam body, and a vertically rotatable lower locking block installed in the locking lower locking block. The reversible locking bolt on the pressure block, the lower belt supporting roller is used to receive the steel rails of the lower layer, the reversible locking bolt can be vertically rotated 90° outward, and is correspondingly located on the outer side between the two lower belt supporting rollers; the pressure beam comprises a pressure beam main body, a plurality of upper belt supporting rollers spaced apart on the top of the pressure beam main body, and a lifting and locking pressure iron assembly located on the inner side of the pressure beam main body, the lifting and locking pressure iron assembly corresponds one by one to the reversible locking bolts up and down, the upper belt supporting roller is used to receive the steel rails of the upper layer, and when the steel rails on the upper layer are full, the lifting and locking pressure iron assembly is pressed down to fully dock with the reversible locking bolts in the vertical state, or moved up to completely disengage from the reversible locking bolts, thereby independently locking or unlocking the steel rails of the lower layer.

[0005] As a preferred embodiment of the above scheme, the lifting and locking weight assembly includes a weight base fixed on the inner side of the weight beam body, a weight shell located in the weight base and a locking column rotatably installed in the weight shell, the left and right sides of the weight shell are obliquely provided with side wings that can press the adjacent rails, and the side away from the upper support belt roller is provided with an unlocking and moving up ring, so that the obliquely arranged side wings of adjacent weight shells can be staggered and not collide with each other while pressing the rails on the left and right, thereby locking the middle rail, and the design structure is ingenious and reasonable; the top edge of the locking column is symmetrically provided with a block extending outward and able to be stuck on the weight base, thereby fixing the locking column; the top of the locking column is provided with a hexagonal interface and the bottom is provided with a threaded hole, which is convenient for docking operation, and the design structure is reasonable.

[0006] Further preferably, the top of the weight iron base is provided with a square opening for the unlocking and moving upward lifting ring to pass through, the top of the weight iron base is provided with a fixed through hole that fits with the outer wall of the top end of the locking column, and anti-rotation short columns are provided along the circumference of the fixed through hole to prevent the locking column from self-spinning and unlocking due to vibration and sliding. The structural design is ingenious and has high practical value; when the unlocking and moving upward lifting ring is pulled to drive the top of the locking column to separate from the weight iron base, the locking column can be rotated through the hexagonal interface until the block can fall on the weight iron base, thereby driving the weight iron shell to be fixed in the weight iron base together, and it needs to be lifted to be higher than the anti-rotation short column before the locking column can be rotated.

[0007] Further preferably, the inner wall of the weight iron shell is provided with a limiting step that matches the outer wall of the locking column, the upper outer wall of the locking column is provided with an annular semicircular groove, and the weight iron shell is provided with through holes for inserting locating pins corresponding to the annular semicircular groove at left and right intervals, and the locating pin has a diameter that matches the diameter of the annular semicircular groove and passes through the annular semicircular groove horizontally on the inner side to ensure the stability of the installation, thereby axially limiting and fixing the locking column, ensuring the stable connection between the weight iron shell and the locking column, and ensuring that the locking column can only rotate but cannot move up and down relative to the weight iron shell. The design structure is ingenious and the structure is interlocking.

[0008] Further 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 weight shell and the weight base. The rubber pad effectively prevents the components from direct contact and wear, thereby reducing the service life of the components; the inner end of the flippable 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 through a pin shaft, and a rubber pad is provided between one side of the rotating main block and the center groove of the locking lower pressure block.

[0009] It is further preferred that inverted "T"-shaped installation grooves are provided on the top of the pressure beam and on the left and right sides of the roller beam at intervals, and are equipped with independent rail locking units to lock the rails on the upper and lower sides. Notches for installing and removing independent rail locking units are provided on the bottom of the pressure beam corresponding to the left and right sides of the roller beam. The design structure is reasonable and reduces the cost of locking the bottom rails. Only the lifting and locking pressure iron assembly needs to be installed in the middle area of ​​the roller beam. Notches are provided on the bottom of the pressure beam corresponding to the left and right sides of the roller beam to leave space for manual operation, thereby ensuring the independent removal of the bottom side rails. The design is clever and reduces costs.

[0010] Further preferably, the independent rail locking unit comprises an inverted "T" type locking bolt inserted into an inverted "T" type installation groove and an independent locking block installed on the inverted "T" type locking bolt and pressing the adjacent rails, the vertical screw of the inverted "T" type locking bolt passes through the gap between the adjacent rails, and the independent locking block is fastened and installed by a nut, and the adjacent independent rail locking unit is used to lock the middle rail, and the design structure is reasonable. The operation is simple and quick.

[0011] It is further preferred that a locking assembly is provided at the end of the pressure beam corresponding to the lock beam column, and the locking assembly includes a pressure beam baffle plate which is vertically limited at an interval of upper and lower intervals at the end of the pressure beam, a lock iron rotatably mounted on the lower pressure beam baffle plate, and a baffle iron rotatably mounted on the upper pressure beam baffle plate. When the lock iron is rotated to a vertical state, the baffle iron which is rotated to a horizontal state fixes the top end of the lock iron and combines with the lock beam column side wall to horizontally limit the pressure beam end to achieve locking.

[0012] Further preferably, a rotating drum is integrally provided at the end of the pressure beam close to the rotating shaft column, and the rotating drum is installed on the rotating main shaft of the rotating shaft column through bearings arranged at upper and lower intervals, so as to realize the outward horizontal rotation of the pressure beam. The design structure is reasonable and the pressure beam can be stably opened outward.

[0013] Beneficial effects of the present invention:

[0014] (1) Compared with the existing long rail vehicle which does not have the function of selectively loading and unloading rails at any position, the present solution adopts a lifting locking pressure iron assembly corresponding to the reversible locking bolt one by one, and presses the lifting locking pressure iron assembly down to fully dock with the reversible locking bolt in the vertical state, or moves up to completely disengage from the reversible locking bolt, so as to realize the individual locking or unlocking of the rails at any position of the upper and lower layers, without the need to unlock the rails layer by layer in the order from the upper layer to the lower layer. Moreover, when loading rails, the rails can be uniformly loaded on the upper or lower layer according to their specifications, and the efficiency of unloading rails can be improved at the same time, achieving two goals at one stroke, realizing rail loading and unloading at any position, with flexible operation and meeting the needs of on-site operations.

[0015] (2) The pressure beam is installed on the 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, and the flip locking bolts are located between the two lower support belt rollers. When the left and right adjacent lifting and locking pressure iron assemblies are fully connected with the corresponding flip locking bolts, the rails between the two lifting and locking pressure iron assemblies can be completely locked. The concept is novel, the design is ingenious, and the structure is interlocking.

[0016] (3) The reversible locking bolt installed on the locking lower pressure block can be rotated vertically outward by 90°. When it is flipped outward, there is enough working space without any position conflict with other components. The spatial layout is reasonable, so the lower support belt roller needs to be installed on the inner side of the roller beam, and the upper support belt roller is set on the top of the pressure iron beam body and is located on the outer side accordingly. Therefore, the upper support belt roller and the lower support belt roller are arranged in a front-to-back staggered manner, which not only ensures the operating space but also ensures that the upper and lower layers of the column mechanism are subjected to dispersed forces, and the load-bearing force is not concentrated on one side, thereby ensuring the stability of the column mechanism. The design is reasonable.

[0017] In summary, the present invention has the advantages of selective loading and unloading of rails at any position, improving rail unloading efficiency, meeting on-site operation requirements, novel conception, sufficient operating space, and stability of the column mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention (the independent rail locking unit of the upper rail is not shown).

[0019] Figure 2 for Figure 1 Front view of the (showing the independent locking unit for the upper rail).

[0020] Figure 3 for Figure 1 Left view of .

[0021] Figure 4 This is a top view of the lifting and locking iron pressure assembly and the reversible locking bolt in a fully docked state.

[0022] Figure 5 It is a top view of the flip-out locking bolt in the unlocked state.

[0023] Figure 6 for Figure 2 Partial cross-sectional view.

[0024] Figure 7 Schematic diagram of the exploded structure of the lifting and locking pressure iron assembly parts.

[0025] Figure 8 This is a schematic diagram of the lifting locking pressure iron assembly and the flip locking bolt being in an un-jointed and unlocked state. DETAILED DESCRIPTION

[0026] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0027] Combination Figure 1 — Figure 8 As shown, a layer rail locking system is composed of a column mechanism arranged at intervals on the left and right and two groups of rail support beam mechanisms symmetrically overlapped on the column mechanism in front and back mirror images.

[0028] The column mechanism is composed of a rotating shaft column 4 and a locking beam column 5, both of which are front-to-back symmetrical structures.

[0029] The rail support beam structure is composed of a roller beam 2 and a pressure beam 3 corresponding to the upper and lower parts.

[0030] Both ends of the roller beam 2 and the pressure beam 3 are respectively overlapped on the rotating shaft column 4 and the lock beam column 5, and the pressure beam 3 can realize outward horizontal rotation through the rotating shaft column 4.

[0031] The roller beam 2 is composed of a roller beam body 24, a plurality of lower support rollers 21 spaced apart on the roller beam body 24, a plurality of locking pressing blocks 22 spaced apart in the middle area of ​​the roller beam body 24, and a flippable locking bolt 23 vertically rotatably mounted on the locking pressing block 22.

[0032] The lower support belt roller 21 is used to receive the rail 1 at the lower layer.

[0033] The flip lock bolt 23 can be vertically rotated 90° outward and is correspondingly located on the outer side between the two lower belt-supporting rollers 21 .

[0034] The inner end of the flippable locking bolt 23 is integrally provided with a rotating main block 231 that is inserted into the central groove of the locking pressing block 22 and is connected via a pin shaft.

[0035] A rubber pad 9 is provided between one side of the rotating main block 231 and the central groove of the locking pressing block 22 .

[0036] The pressure beam 3 is composed of a pressure beam body 33 , a plurality of upper belt-supporting 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 .

[0037] The lifting locking iron pressure assembly 32 corresponds to the flippable locking bolt 23 one by one up and down.

[0038] The upper support belt roller 31 is used to receive the rail 1 on the upper layer.

[0039] When the rails 1 on the upper layer are full, the locking weight assembly 32 is lifted and pressed down to completely engage with the vertically reversible locking bolt 23, or moved up to completely disengage from the reversible locking bolt 23, thereby independently locking or unlocking the rails 1 on the lower layer.

[0040] A rotating drum 35 is integrally provided at the end of the pressure iron beam 3 close to the rotating shaft column 4 .

[0041] The rotating drum 35 is installed on the rotating main shaft of the rotating shaft column 4 through bearings arranged at intervals above and below, so as to realize the outward horizontal rotation of the iron pressure beam 3.

[0042] The lifting and locking weight assembly 32 is composed of a weight base 321 fixed to the inner side of a weight beam body 33 , a weight shell 322 located in the weight base 321 , and a locking column 323 rotatably mounted in the weight shell 322 .

[0043] The left and right sides of the weight housing 322 are obliquely provided with side wings 322 a that can press the adjacent rails 1 , and the side away from the upper supporting belt roller 31 is provided with an unlocking upward lifting ring 324 .

[0044] A stopper 323 a is symmetrically provided on the top edge of the locking column 323 and extends outward and can be stuck on the weight base 321 .

[0045] The locking column 323 has a hexagon socket at the top and a threaded hole at the bottom.

[0046] A square opening is provided on the top of the weight iron base 321 for the unlocking and upward lifting ring 324 to pass through.

[0047] A fixing through hole is provided at the top of the weight iron base 321 and matches with the outer wall of the top end of the locking column 323 , and anti-rotation short columns are provided along the circumference of the fixing through hole.

[0048] When the lifting and unlocking lifting ring 324 drives the top of the locking column 323 to separate from the weight base 321, the locking column 323 can be rotated through the hexagonal interface until the stop block 323a can fall on the weight base 321, thereby driving the weight shell 322 to be fixed in the weight base 321.

[0049] The inner wall of the weight housing 322 is provided with a limiting step that matches the outer wall of the locking column 323, and the upper outer wall of the locking column 323 is provided with an annular semicircular groove.

[0050] The iron weight housing 322 is provided with through holes at intervals on the left and right corresponding to the annular semicircular groove for the positioning pins 322b to be inserted, and the diameter of the positioning pins 322b matches the diameter of the annular semicircular groove and passes through the annular semicircular groove horizontally on the inside, thereby axially limiting and fixing the locking column 323.

[0051] A rubber pad 9 is installed at the bottom of the side wing 322a.

[0052] A rubber pad 9 is installed between the lower outer wall of the weight housing 322 and the weight base 321 .

[0053] The locking beam column 5 is provided with a locking assembly at the end of the corresponding pressure iron beam 3.

[0054] The locking assembly is composed of a pressure beam baffle plate 51 at the end of the vertical limit pressure beam 3 spaced apart from each other, a locking iron 52 rotatably mounted on the lower pressure beam baffle plate 51 , and a baffle iron 53 rotatably mounted on the upper pressure beam baffle plate 51 .

[0055] When the lock iron 52 is rotated to a vertical state, the top of the lock iron 52 is fixed by the stop iron 53 rotated to a horizontal state and combined with the side wall of the lock beam column 5 to horizontally limit the end of the iron beam 3 to achieve locking.

[0056] Inverted "T"-shaped installation grooves are provided at intervals on the left and right sides of the weight beam 3 and the left and right sides of the roller beam 2, and are equipped with independent rail locking units 6 to lock the rails 1 located on the upper and lower sides. Notches 34 for installing and removing independent rail locking units 6 are provided at the bottom of the weight beam 3 corresponding to the left and right sides of the roller beam 2.

[0057] The independent rail locking unit 6 is composed of an inverted “T”-shaped locking bolt 61 inserted into an inverted “T”-shaped mounting groove and an independent locking pressing block 62 installed on the inverted “T”-shaped locking bolt 61 and pressing the adjacent rail 1 .

[0058] The vertical screw of the inverted “T”-shaped locking bolt 61 passes through the gap between adjacent rails 1 and is fastened to the independent locking pressing block 62 by a nut.

[0059] The invention discloses a locking system for an interlayer rail, comprising a column mechanism and a rail supporting beam mechanism, the column mechanism comprising a rotating shaft column and a locking beam column, the rail supporting beam mechanism comprising a roller beam and a pressure iron beam corresponding to the upper and lower parts, the roller beam comprising a roller beam body, a lower supporting belt roller, a locking lower pressure block and a reversible locking bolt, the lower supporting belt roller is used to receive the rail of the lower layer, the reversible locking bolt can be vertically rotated 90° outwards and is correspondingly located on the outer side between the two lower supporting belt rollers; the pressure iron beam comprises a pressure iron beam body, a plurality of upper supporting belt rollers spaced apart on the top of the pressure iron beam body and a lifting and locking pressure iron assembly located on the inner side of the pressure iron beam body, the lifting and locking pressure iron assembly corresponds one by one to the reversible locking bolt, the upper supporting belt roller is used to receive the rail of the upper layer, the invention has the advantages of selective loading and unloading of rails at any position, improving rail unloading efficiency, meeting on-site operation requirements, novel conception, sufficient operating space, and stability of the column mechanism.

Claims

1. A rail locking system, characterized in that: The invention relates to a rail support beam mechanism, comprising a column mechanism arranged at intervals on the left and right and two groups of rail support beam mechanisms symmetrically overlapped on the column mechanism in a front-to-back mirror image. The column mechanism comprises a rotating shaft column (4) and a locking beam column (5) both of which are symmetrical in structure. The rail support beam mechanism comprises a roller beam (2) and a pressure beam (3) corresponding to each other in the upper and lower parts. Both ends of the roller beam (2) and the pressure beam (3) are respectively overlapped on the rotating shaft column (4) and the locking beam column (5). The pressure beam (3) can be horizontally rotated outward through the rotating shaft column (4). The roller beam (2) comprises a roller beam body (24), a plurality of lower support belt rollers (21) arranged at intervals on the roller beam body (24), a plurality of locking lower pressing blocks (22) arranged at intervals in the middle area of ​​the roller beam body (24), and a flippable locking bolt (23) mounted on the locking lower pressing block (22) in a vertically rotatable manner. The wheel (21) is used to receive the steel rail (1) of the lower layer, and the reversible locking bolt (23) can be vertically rotated 90 degrees outward and is located correspondingly on the outer side between the two lower belt-supporting rollers (21); the pressure iron beam (3) comprises a pressure iron beam body (33), a plurality of upper belt-supporting rollers (31) arranged at intervals on the top of the pressure iron beam body (33), and a lifting and locking pressure iron assembly (32) located on the inner side of the pressure iron beam body (33), the lifting and locking pressure iron assembly (32) corresponding to the reversible locking bolt (23) one by one up and down, and the upper belt-supporting roller (31) is used to receive the steel rail (1) of the upper layer, and when the steel rail (1) of the upper layer is full, the lifting and locking pressure iron assembly (32) is pressed down to completely dock with the reversible locking bolt (23) in a vertical state, or moved up to completely detach from the reversible locking bolt (23), thereby independently locking or unlocking the steel rail (1) of the lower layer.

2. The interlayer rail locking system according to claim 1, characterized in that: The lifting and locking weight assembly (32) comprises a weight base (321) fixed on the inner side of a weight beam body (33), a weight shell (322) located in the weight base (321), and a locking column (323) rotatably mounted in the weight shell (322); the weight shell (322) has side wings (322a) obliquely arranged on the left and right sides thereof capable of pressing down on adjacent rails (1); a side away from the upper support belt roller (31) is provided with an unlocking upward lifting ring (324); a stopper (323a) extending outwardly and capable of being clamped on the weight base (321) is symmetrically arranged on the top edge of the locking column (323); a hexagonal socket is arranged at the top end thereof, and a threaded hole is arranged at the bottom end thereof.

3. The interlayer rail locking system according to claim 2, characterized in that: The top of the weight iron base (321) is provided with a square opening for the unlocking and moving upward lifting ring (324) to pass through, and the top of the weight iron base (321) is provided with a fixing through hole that fits with the outer wall of the top end of the locking column (323), and anti-rotation short columns are provided along the circumference of the fixing through hole. When the unlocking and moving upward lifting ring (324) is lifted to drive the top of the locking column (323) to separate from the weight iron base (321), the locking column (323) can be rotated through the hexagonal interface to rotate until the stopper (323a) can fall on the weight iron base (321), thereby driving the weight iron shell (322) to be fixed in the weight iron base (321).

4. The interlayer rail locking system according to claim 2, characterized in that: The inner wall of the iron pressure shell (322) is provided with a limiting step that matches the outer wall of the locking column (323), and the upper outer wall of the locking column (323) is provided with an annular semicircular groove. The iron pressure shell (322) is provided with through holes at intervals on the left and right corresponding to the annular semicircular groove for the insertion of positioning pins (322b), and the positioning pins (322b) have a diameter that matches the diameter of the annular semicircular groove and pass through the annular semicircular groove horizontally on the inside, thereby axially limiting and fixing the locking column (323).

5. The interlayer rail locking system according to claim 2, 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 weight housing (322) and the weight base (321), and a rotating main block (231) is integrally provided at the inner end of the flippable locking bolt (23) and is inserted into the central groove of the locking lower pressure block (22) and connected via a pin shaft, and a rubber pad (9) is provided between one side of the rotating main block (231) and the central groove of the locking lower pressure block (22).

6. The interlayer rail locking system according to claim 1, characterized in that: Inverted "T"-shaped installation grooves are provided at intervals on the left and right sides of the pressure beam (3) and the left and right sides of the roller beam (2), and are equipped with independent rail locking units (6) to lock the steel rails (1) located on the upper and lower sides. Notches (34) for installing and removing the independent rail locking units (6) are provided at the bottom of the pressure beam (3) corresponding to the left and right sides of the roller beam (2).

7. The interlayer rail locking system according to claim 6, characterized in that: The independent rail locking unit (6) comprises an inverted "T"-shaped locking bolt (61) inserted into an inverted "T"-shaped mounting groove and an independent locking pressing block (62) mounted on the inverted "T"-shaped locking bolt (61) and pressing the adjacent steel rails (1); the vertical screw of the inverted "T"-shaped locking bolt (61) passes through the gap between the adjacent steel rails (1), and the independent locking pressing block (62) is fastened and mounted by a nut.

8. The interlayer rail locking system according to claim 1, characterized in that: The locking beam column (5) is provided with a locking assembly at the end of the corresponding pressure beam (3), and the locking assembly comprises a pressure beam baffle (51) arranged at intervals above and below to vertically limit the end of the pressure beam (3), a locking iron (52) rotatably mounted on the lower pressure beam baffle (51), and a baffle (53) rotatably mounted on the upper pressure beam baffle (51). When the locking iron (52) is rotated to a vertical state, the baffle (53) rotated to a horizontal state fixes the top of the locking iron (52) and combines with the side wall of the locking beam column (5) to horizontally limit the end of the pressure beam (3) to achieve locking.

9. The interlayer rail locking system according to claim 1, characterized in that: A rotating drum (35) is integrally provided at the end of the pressure beam (3) close to the rotating shaft column (4); the rotating drum (35) is mounted on the rotating main shaft of the rotating shaft column (4) via bearings spaced apart up and down, thereby achieving outward horizontal rotation of the pressure beam (3).

Images