Railway track laying construction track leveling auxiliary device and construction method thereof

Abstract

The application discloses a track leveling auxiliary equipment for railway track laying construction and a construction method thereof. The equipment comprises a leveling frame, a leveling mechanism and a transverse adjusting mechanism. The horizontal support transverse plate of the leveling frame is arranged between adjacent sleepers of a railway track and below a steel rail. The lower end of the support column of the leveling frame is fixed to the ground on the side surface of the railway track. The leveling mechanism connected with the support transverse plate can level the gravel layer below the sleepers. The transverse adjusting mechanism arranged above the support transverse plate can transversely adjust the position of the steel rail. The method comprises the following steps: driving the pressing plate by a gas pump to level the gravel layer, driving the top plate to lift the steel rail, and driving the booster cylinders on the two sides of the steel rail to unilaterally push the steel rail, so as to realize the transverse adjustment of the steel rail. The application can quickly level the gravel layer and improve the accuracy and convenience of the transverse adjustment of the steel rail.

Description

Technical Field

[0001] This invention belongs to the field of railway track construction technology, specifically a track leveling auxiliary device for railway track laying and its construction method. Background Technology

[0002] As is well known, the steel rails of ballast track railways are laid on top of sleepers, and a layer of crushed stone is placed at the bottom of the sleepers. Due to the long length of the steel rails, they are mostly transported and installed by hoisting equipment.

[0003] Typically, after the rails are hoisted, in order to achieve precise rail positioning and connection, the rails need to be manually moved laterally to ensure that adjacent rails are precisely aligned.

[0004] However, in actual operation, due to the large weight and length of the rails, a lot of manual handling is required. Manual handling makes it difficult to control their positional accuracy. Furthermore, when manually pushing the rails laterally, due to the rails' own weight, there is a large friction between the rails and the sleepers, which damages the sleeper structure. Summary of the Invention

[0005] The purpose of this invention is to provide a track leveling auxiliary device and its construction method for railway track laying, which aims to solve the technical problems of poor positional accuracy, time-consuming and labor-intensive, and damage to sleepers caused by manual handling of rails for lateral connection in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A track leveling auxiliary device for railway track laying construction includes a leveling frame, a leveling mechanism, and a lateral adjustment mechanism. The leveling frame is L-shaped, and its horizontal support plate is positioned between adjacent sleepers of the railway track and below the rail. The lower ends of the support columns of the leveling frame are fixed to the ground on the side of the railway track. The leveling mechanism is connected to the support plate and is used to level the gravel layer below the sleepers. The lateral adjustment mechanism is positioned above the support plate and is used to laterally adjust the position of the rail.

[0008] Preferably, the leveling mechanism includes a pressure plate and a first piston. The pressure plate is positioned below the supporting horizontal plate and above the crushed stone layer. The first piston is positioned in the pressurized inner cavity of the supporting horizontal plate and is connected to the pressure plate via a connecting rod. The bottom plate of the supporting horizontal plate has a guide hole that slides with the connecting rod, and the connecting rod and the guide hole are sealed together. The side wall of the pressurized inner cavity has an air inlet for connecting an external air pump, and the air inlet is positioned above the first piston. The air pump vents and vents air into the pressurized inner cavity, driving the first piston and the pressure plate to move up and down, thereby compacting the crushed stone layer.

[0009] Preferably, a rectangular trough is provided above the supporting cross plate, and a top plate is provided inside the trough. A row of rotating rollers is provided on the upper surface of the top plate, and the length direction of the rotating rollers is consistent with the length direction of the rail. The top plate is connected to a second piston in the pressurizing cavity through a connecting column. The second piston is located above the first piston. The top wall of the pressurizing cavity is provided with a guide hole that slides with the connecting column, and the connecting column and the guide hole are sealed together. The air inlet is located below the second piston. An air pump supplies air into the pressurizing cavity to pressurize it, and the second piston drives the top plate to lift the rail upward. When the top plate contacts the bottom of the trough, the upper surface of the rotating rollers is flush with the upper surface of the supporting cross plate.

[0010] Preferably, the lateral adjustment mechanism includes a booster cylinder, a first insert, and a second insert. The first and second inserts are fixed on the support plate and are located on the left and right sides of the rail, respectively. The first and second inserts are connected by an air pump. A pair of booster cylinders distributed on the left and right sides are connected to the inner cavities of the first and second inserts. Each of the two booster cylinders has a T-shaped insert on one side opposite to the other. One end of the T-shaped insert can fit against the two side walls of the rail web, and the other end of the T-shaped insert is connected to the piston column of the booster cylinder.

[0011] Preferably, the inner cavity of the first insert is provided with a right-angled inner cavity, the upper end of the right-angled inner cavity is provided with a stepped insertion hole, the other end of the right-angled inner cavity is provided with an external interface laterally, and the lower end of the booster cylinder is provided with a sealing tube inserted into the stepped insertion hole. The second insert has the same structure as the first insert, and both the first insert and the second insert are connected to the air pump through the external interface.

[0012] Preferably, a pair of side frames are vertically fixed on both sides of the upper end of the support plate. The side frames are triangular in shape, and slots are vertically provided on the inner end face of the side frames. A slider that slides in cooperation with the slots is provided on the outer wall of the end of the booster cylinder.

[0013] Preferably, the support column of the leveling frame is provided with a fixing block that fits against the ground, and the fixing block is fixed to the ground by pre-embedded bolts.

[0014] This invention also provides a construction method for track leveling auxiliary equipment used in railway track laying, comprising the following steps using the aforementioned track leveling auxiliary equipment:

[0015] Lifting and installation: The rails are lifted onto the sleepers at the laying location using a crane. Multiple sets of leveling frames are installed at the front, back, and middle positions of the rails. Pressure cylinders are inserted into both sides of the support cross plate of the leveling frame.

[0016] Leveling Installation: Connect an air pump to the air inlet of the pressurized inner cavity inside the supporting horizontal plate to circulate air into and exhaust the pressurized inner cavity. The first piston drives the pressure plate to repeatedly impact the top surface of the crushed stone layer to achieve leveling. After the crushed stone layer is leveled, continue to supply air into the pressurized inner cavity, so that the force on the second piston in the pressurized inner cavity increases to be greater than the weight of the rail. The second piston drives the top plate to rise and lift the rail to detach it from the sleeper. At the same time, it drives the pressure plate to press tightly against the crushed stone layer.

[0017] Pressure adjustment: Air is introduced into the first and second inserts by an air pump, so that the two T-shaped blocks fit against the two sides of the rail web. According to the position of the rail offset, the air pump is driven to adjust the pressure inside the first and second inserts, so that the internal pressure on one side increases and the internal pressure on the other side decreases, driving the rail to move laterally, so as to fine-tune the lateral position of the rail and complete the docking between adjacent rails.

[0018] The beneficial effects of adopting the above technical solution are as follows: Compared with the prior art, the present invention uses an air pump to drive the pressure plate of the leveling mechanism to level the gravel layer under the rail, while simultaneously lifting the rail and the sleepers to detach and suspend it; the air pump drives the lateral adjustment mechanism to achieve lateral clamping on both sides of the rail and lateral translation, thereby achieving convenient lateral advancement of the rail, greatly improving the lateral adjustment accuracy and convenience of railway tracks, and reducing labor intensity. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a structural schematic diagram of a track leveling auxiliary device and its construction method for railway track laying, provided in an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the supporting horizontal plate in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram showing the relative positions of the top plate and pressure plate to the supporting horizontal plate in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram showing the connection between the first insert and the booster cylinder in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the booster cylinder, the T-shaped insert, and the first insert in an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A diagram of the first insert in the middle;

[0026] Figure 7 yes Figure 5Schematic diagram of the connection between the booster cylinder and the T-shaped insert;

[0027] In the diagram: 1. Ground; 2. Gravel layer; 3. Sleeper; 4. Leveling frame; 5. Supporting cross plate; 6. Fixing block; 7. Top plate; 8. Pressure plate; 9. Air inlet; 10. First insert; 11. Second insert; 12. Rail; 13. Rotating roller; 14. T-shaped insert; 15. Pressure booster cylinder; 16. Screw sleeve; 17. Side frame; 18. Slider; 19. Slot; 20. Insert tube; 21. Sealing ring; 22. External thread; 23. External interface; 24. Pressure boosting inner cavity; 25. Internal thread; 26. Sealing groove; 27. Retaining ring; 28. Right-angle inner cavity; 29. ​​Stepped insertion hole; 30. First piston; 31. Connecting rod; 32. Connecting column; 33. Second piston. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-7 The present invention provides a track leveling auxiliary device for railway track laying construction, comprising a leveling frame 4, a leveling mechanism, and a lateral adjustment mechanism. The leveling frame 4 is L-shaped, and the horizontal support plate 5 of the leveling frame 4 is disposed between adjacent sleepers 3 of the railway track and below the rail 12. The lower end of the support column of the leveling frame 4 is fixed to the ground 1 on the side of the railway track. The leveling mechanism is connected to the support plate 5 and is used to level the gravel layer 2 below the sleepers 3. The lateral adjustment mechanism is disposed above the support plate 5 and is used to laterally adjust the position of the rail 12. The rail 12 is installed on the linearly arranged sleepers 3, with gaps between adjacent sleepers 3. A layer of crushed stone 2 is laid at the lower end of the sleepers 3, and the crushed stone layer 2 is laid on the ground 1. The support plate 5 is inserted horizontally and parallelly into the gap between adjacent sleepers 3, and the support plate 5 is located below the rail 12. The crushed stone layer 2 is leveled by the leveling mechanism, and the position of the rail is adjusted horizontally by the horizontal adjustment mechanism, so that adjacent rails 12 can be connected.

[0030] In one specific embodiment of the present invention, such as Figure 2 , 3As shown, the leveling mechanism includes a pressure plate 8 and a first piston 30. The pressure plate 8 is located below the supporting horizontal plate 5 and above the crushed stone layer 2. The first piston 30 is located in the pressurized inner cavity 24 of the supporting horizontal plate 5. The first piston 30 is connected to the pressure plate 8 through one or more connecting rods 31. The bottom plate of the supporting horizontal plate 5 is provided with a guide hole that slides with the connecting rod 31, and the connecting rod 31 and the guide hole are sealed together. The side wall of the pressurized inner cavity 24 is provided with an air inlet 9 that can be connected to an external air pump. The air inlet is located above the first piston 30. The air pump exhausts and intakes air into the pressurized inner cavity 24, driving the first piston 30 and the pressure plate 8 to move up and down, thereby compacting the crushed stone layer 2.

[0031] In one specific embodiment of the present invention, such as Figure 2 , 3 As shown, a rectangular groove is provided above the supporting horizontal plate 5, and a top plate 7 is provided inside the groove. A row of rotating rollers 13 is provided on the upper surface of the top plate 7. The length direction of the rotating rollers 13 is consistent with the length direction of the rail 12. The top plate 7 is connected to a second piston 33 in the pressurizing cavity 24 through one or more connecting columns 32. The second piston 33 is located above the first piston 30. The top wall of the pressurizing cavity 24 is provided with a guide hole that slides with the connecting column 32. The connecting column 32 and the guide hole are sealed together. The air inlet 9 is located below the second piston 33. An air pump supplies air to the pressurizing cavity 24 to pressurize it, and the second piston 33 drives the top plate 7 to lift the rail 12 upward. When the top plate 7 contacts the bottom of the groove, the upper surface of the rotating rollers 13 is flush with the upper surface of the supporting horizontal plate 5, which can avoid the rotating rollers interfering with the rail. The top plate 7 lifts the rail 12, making the rail 12 suspended in the air. At the same time, the pressure plate 8 presses against the crushed stone layer 2 to form a stable support. With the help of the rotating roller 13, the friction between the rail 12 and the sleeper 3 during the lateral advancement of the rail 12 is further reduced, which greatly improves the convenience of lateral adjustment.

[0032] In operation, an air intake valve is installed at the air inlet 9. An external air pump is connected to the air intake valve to circulate air into and exhaust the pressurized inner cavity 24. The second piston 33 and the first piston 30 drive the top plate 7 and the pressure plate 8 to rise and fall. When the air pressure in the pressurized inner cavity 24 increases, the second piston 33 and the first piston 30 will move outward under the pressure. Since the top plate 7 is below the rail 12, when the upward force on the top plate 7 is less than the weight of the rail 12, the rise of the rail 12 and the top plate 7 is minimal or only has a tendency to rise and will not rise at all. Due to the gaps between the gravel in the gravel layer 2, the pressure plate 8 will eventually descend. Conversely, when the air pressure in the pressurized inner cavity 24 decreases, the second piston 33 and the first piston 30 will cause the top plate 7 and the pressure plate 8 to retract under the negative pressure. This cycle repeats, with the pressure plate 8 repeatedly rising and falling, continuously impacting the crushed stone layer 2. This compacts the crushed stone within the layer, further increasing its density. This prevents the impact force from being transferred to the crushed stone layer after the railway is put into operation, thus avoiding a drop in track elevation and potential safety hazards caused by trains constantly impacting the track. When the air pump continues to pressurize the pressurized cavity 24, increasing the air pressure so that the upward force of the top plate 7 exceeds the weight of the rail 12, the top plate 7 can be driven to lift the rail 12 away from the sleeper 3, simultaneously driving the pressure plate 8 to tightly press against the crushed stone layer 2. Then, the rail 12 is laterally moved using the lateral adjustment mechanism. Therefore, during the air circulation process in the pressurized cavity 24, the rising and falling of the pressure plate 8 impacts and levels the crushed stone layer 2, while the rising of the top plate 7 lifts the rail 12 for easy movement and adjustment.

[0033] As a preferred option, such as Figure 1 , 4 As shown in Figure 7, the lateral adjustment mechanism includes a booster cylinder 15, a first insert 10, and a second insert 11. The first insert 10 and the second insert 11 are fixed on the support plate 5, and the first insert 10 and the second insert 11 are located on the left and right sides of the rail 12, respectively. The first insert 10 and the second insert 11 are connected by an air pump. A pair of booster cylinders 15 distributed on the left and right sides are connected to the inner cavities of the first insert 10 and the second insert 11. Each of the two booster cylinders 15 has a T-shaped insert 14 on one side opposite to the other. One end of the T-shaped insert 14 can fit against the two side walls of the rail web of the rail 12, and the other end of the T-shaped insert 14 is connected to the piston column of the booster cylinder 15. Driven by the air pump, the internal pressure of one side of the booster cylinder 15 increases while the internal pressure of the other side decreases, achieving synchronous movement of one side of the T-shaped insert 14 being pushed forward and the other side of the T-shaped insert 14 being retracted. This allows for lateral adjustment of the rail 12 by laterally pressing the rail 12 through the T-shaped insert 14, greatly improving the lateral adjustment accuracy and convenience of the rail 12.

[0034] In specific design, such as Figure 4As shown, the first insert 10 has a right-angled inner cavity 28. The upper end of the right-angled inner cavity 28 has a stepped insertion hole 29, and the other end of the right-angled inner cavity 28 has a transverse external interface 23. The lower end of the booster cylinder 15 has a vertically arranged insert tube 20 that is sealed and inserted into the stepped insertion hole 29. The second insert 11 has the same structure as the first insert 10. Both the first insert 10 and the second insert 11 are connected to the air pump through the external interface 23. Specifically, the lower end of the insert tube 20 has an annular sealing groove 26, and a sealing ring 21 is provided on the stepped surface of the stepped insertion hole 29. The sealing ring 21 is inserted into the sealing groove 26. The sealing fit between the sealing ring 21 and the sealing groove 26 improves the sealing performance between the booster cylinder 15 and the insert.

[0035] Because the rail 12 has a large weight, it requires a large lateral thrust. Therefore, the internal pressure of the booster cylinder 15 is large, which can easily cause the connection to separate under the action of the internal pressure. In order to improve the connection strength, a retaining ring 27 is fixedly sleeved on the outer wall of the middle section of the insertion tube 20. A threaded sleeve 16 is slidably sleeved on the upper end of the retaining ring 27. The upper end of the threaded sleeve 16 is pressed against the upper end face of the retaining ring 27. The annular outer wall of the threaded sleeve 16 extends to the outer side of the insertion tube 20. The inner wall of the threaded sleeve 16 is provided with an internal thread 25. The upper outer wall of the first insertion tube 10 and the second insertion tube 11 is provided with an external thread 22. The internal thread 25 and the external thread 22 on the threaded sleeve 16 are rotatably threadedly connected.

[0036] By setting the thread of the sleeve 16 to rotate, the sleeve 16 is driven to press down. During the pressing process, the sleeve 16 presses against the retaining ring 27, pulling the insertion tube 20 downward and squeezing it, thereby improving the connection strength between the insertion tube 20 and the insertion cylinder and preventing it from falling off or separating.

[0037] Further optimize the above technical solutions, such as Figure 1 As shown, a pair of side frames 17 are vertically fixed on both sides of the upper end of the supporting horizontal plate 5. The side frames 17 are triangular in shape, and the inner end face of the side frames 17 is vertically provided with a slot 19. The outer wall of the end of the booster cylinder 15 is provided with a slider 18 that slides in cooperation with the slot 19. This structure facilitates the movement of the booster cylinder 15 in the vertical opposite direction when lifting the rail. At the same time, the outer side of the support column of the leveling frame 4 is provided with a fixing block 6 that fits against the ground 1. The fixing block 6 is fixed to the ground 1 by pre-embedded bolts. The leveling frame 4 is fixedly installed by setting the fixing block 6, and the sliding cooperation between the slider 18 and the slot 19 realizes the sliding cooperation between the booster cylinder 15 and the side frame 17. At the same time, the side frame 17 provides lateral support for the booster cylinder 15.

[0038] This invention also provides a construction method for track leveling auxiliary equipment used in railway track laying, comprising the following steps using the aforementioned track leveling auxiliary equipment:

[0039] Lifting and installation: The rail 12 is lifted onto the sleepers 3 at the laying position by a crane. Multiple sets of leveling frames 4 are installed at the front, back and middle positions of the rail 12. Pressure cylinders 15 are inserted into both sides of the support cross plate 5 of the leveling frame 4.

[0040] Leveling and installation: Connect an air pump to the air inlet of the pressurized inner cavity 24 inside the supporting horizontal plate 5 to circulate air into and exhaust the pressurized inner cavity 24. The first piston 30 drives the pressure plate 8 to repeatedly strike the top surface of the crushed stone layer 2 to achieve leveling. After the crushed stone layer 2 is leveled, continue to supply air into the pressurized inner cavity 24, so that the force on the second piston 33 in the pressurized inner cavity 24 increases to be greater than the weight of the rail 12. The second piston 33 drives the top plate 7 to rise and lift the rail 12 to separate it from the sleeper 3. At the same time, it drives the pressure plate 8 to press tightly against the crushed stone layer 2.

[0041] Pressure adjustment: Air is introduced into the first insert 10 and the second insert 11 by an air pump, so that the two T-shaped inserts 14 fit against the two side walls of the rail web of the rail 12; according to the offset position of the rail 12, the air pump is driven to adjust the pressure inside the first insert 10 and the second insert 11, so that the internal pressure on one side increases and the internal pressure on the other side decreases, driving the rail 12 to move laterally, so as to fine-tune the lateral position of the rail and complete the accurate docking between adjacent rails 12.

[0042] Many specific details have been set forth in the foregoing description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed above.

Claims

1. A track leveling auxiliary device for railway track laying construction, characterized in that: The system includes a leveling frame, a leveling mechanism, and a lateral adjustment mechanism. The leveling frame is L-shaped, and its horizontal support plate is positioned between adjacent sleepers of the railway track and below the rail. The lower ends of the support columns of the leveling frame are fixed to the ground on the side of the railway track. The leveling mechanism is connected to the support plate and is used to level the gravel layer below the sleepers. The lateral adjustment mechanism is positioned above the support plate and is used to adjust the position of the rail laterally. The leveling mechanism includes a pressure plate and a first piston. The pressure plate is positioned below the supporting horizontal plate and above the crushed stone layer. The first piston is located in the pressurized inner cavity of the supporting horizontal plate and is connected to the pressure plate via a connecting rod. The bottom plate of the supporting horizontal plate has a guide hole that slides with the connecting rod, and the connecting rod and the guide hole are sealed together. The side wall of the pressurized inner cavity has an air inlet for connecting an external air pump, and the air inlet is located above the first piston. The air pump vents and vents air into the pressurized inner cavity, driving the first piston and the pressure plate to move up and down, thereby compacting the crushed stone layer. A rectangular trough is provided above the supporting horizontal plate, and a top plate is provided inside the trough. A row of rotating rollers is provided on the upper surface of the top plate, and the length direction of the rotating rollers is consistent with the length direction of the rail. The top plate is connected to a second piston in the pressurizing cavity through a connecting column. The second piston is located above the first piston. The top wall of the pressurizing cavity is provided with a guide hole that slides with the connecting column, and the connecting column and the guide hole are sealed together. The air inlet is located below the second piston. An air pump supplies air into the pressurizing cavity to pressurize it, and the second piston drives the top plate to lift the rail upward. When the top plate contacts the bottom of the trough, the upper surface of the rotating rollers is flush with the upper surface of the supporting horizontal plate. The lateral adjustment mechanism includes a booster cylinder, a first insert, and a second insert. The first insert and the second insert are fixed on the support plate and are located on the left and right sides of the rail, respectively. The first insert and the second insert are connected by an air pump. A pair of booster cylinders distributed on the left and right sides are connected to the inner cavities of the first insert and the second insert. A T-shaped insert is provided on the opposite side of each of the two booster cylinders. One end of the T-shaped insert can fit against the two side walls of the rail web, and the other end of the T-shaped insert is connected to the piston column of the booster cylinder. The construction method includes the following steps: Lifting and installation: The rails are lifted onto the sleepers at the laying location using a crane. Multiple sets of leveling frames are installed at the front, back, and middle positions of the rails. Pressure cylinders are inserted into both sides of the support cross plate of the leveling frame. Leveling Installation: Connect an air pump to the air inlet of the pressurized inner cavity inside the supporting horizontal plate to circulate air into and exhaust the pressurized inner cavity. The first piston drives the pressure plate to repeatedly impact the top surface of the crushed stone layer to achieve leveling. After the crushed stone layer is leveled, continue to supply air into the pressurized inner cavity, so that the force on the second piston in the pressurized inner cavity increases to be greater than the weight of the rail. The second piston drives the top plate to rise and lift the rail to separate it from the sleeper. At the same time, it drives the pressure plate to press tightly against the crushed stone layer. Pressure adjustment: Air is introduced into the first and second inserts by an air pump, so that the two T-shaped blocks fit against the two side walls of the rail web; according to the position of the rail offset, the air pump is driven to adjust the pressure inside the first and second inserts, so that the internal pressure on one side increases and the internal pressure on the other side decreases, driving the rail to move laterally, so as to fine-tune the lateral position of the rail and complete the docking between adjacent rails.

2. The track leveling auxiliary equipment for railway track laying construction according to claim 1, characterized in that: The first insert has a right-angled inner cavity, with a stepped insertion hole at the upper end of the right-angled inner cavity and an external interface at the other end of the right-angled inner cavity. The lower end of the booster cylinder has a vertically arranged insert tube that is sealed and inserted into the stepped insertion hole. The second insert has the same structure as the first insert. Both the first insert and the second insert are connected to the air pump through the external interface.

3. The track leveling auxiliary equipment for railway track laying construction according to claim 1, characterized in that: A pair of side frames are vertically fixed on both sides of the upper end of the support plate. The inner end face of the side frame is vertically provided with a slot. The outer wall of the end of the booster cylinder is provided with a slider that slides in cooperation with the slot.

4. The track leveling auxiliary equipment for railway track laying construction according to claim 1, characterized in that: The support column of the leveling frame is provided with a fixing block that fits into the ground, and the fixing block is fixed to the ground by pre-embedded bolts.

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