Self-propelled clamp equipment and method of using the same

Abstract

The present application relates to the field of construction engineering technology, and in particular to a self-propelled clamping device, comprising two semicircular clamps that are tightly fitted to the surface of a pier column to achieve position fixation, a plurality of bolt plates fixedly connected to the semicircular clamps and used for inserting bolts to bring the two semicircular clamps close to each other, and a construction platform arranged on the semicircular clamps for workers to carry out construction work on the top, each group of bolt plates comprising an active plate and a passive plate, a same row of tensioning bolts being inserted between the passive plate and the active plate, the heads of the tensioning bolts abutting against the passive plate, a locking block abutting against the active plate at one end of the tensioning bolt away from the passive plate, a wedge block with an inclined surface abutting against the locking block being slidably connected to the active plate, the active plate being provided with a wedge block cylinder that can drive the wedge block to move toward the locking block so as to change the spacing between the locking block and the active plate, and having the effect of being more convenient when only the two semicircular clamps are put on the pier column and then the two semicircular clamps can automatically approach each other.

Description

Technical Field

[0001] The present application relates to the field of construction engineering technology, and in particular to a self-propelled clamping device and a method for using the same. Background Art

[0002] In some bridge projects over deep ravines, canyons, rivers, lakes and seas, it is necessary to first build higher piers, and then build corresponding pad stones, cap beams and tie beams on the top of the piers. In order to carry out corresponding construction on piers of a certain height, it is necessary to set up a construction platform on the top of the piers, and set a hoop at the bottom of the construction platform to be tightly connected to the piers to support the construction platform.

[0003] The existing clamps are generally fixed by bolts and nuts, so that two clamps approximately in a semicircular shape can fit tightly against the surface of the pier column.

[0004] Regarding the above-mentioned related technologies, due to the high height of the upper end of the pier and the strong wind, the workers' work of fixing the clamp is affected by many factors, and they also need to carry certain weight equipment, which has the defect that it is inconvenient to fix the clamp on the pier. Summary of the invention

[0005] In order to facilitate the fixed installation of the clamp on the pier column, the present application provides a self-propelled clamp equipment and a method of using the same.

[0006] In the first aspect, the present application provides a self-propelled clamp equipment and a method of using the same, which adopts the following technical solution.

[0007] A self-propelled clamping device and a method of using the same, comprising two semicircular clamps that fit tightly against the surface of a pier column to achieve position fixation, a set of bolt plates fixedly connected to the semicircular clamps and bringing the two semicircular clamps close to each other, and a construction platform provided on the semicircular clamps for workers to perform construction work on top, wherein each set of bolt plates comprises an active plate and a passive plate, a row of tensioning bolts are passed through the passive plate and the active plate, the heads of the tensioning bolts abut against the passive plate, a locking block abutting against the active plate is provided at one end of the tensioning bolt away from the passive plate, the active plate is slidably connected to a wedge block whose inclined surface fits against the locking block, and the active plate is provided with a wedge block cylinder that can drive the wedge block to move toward the locking block so as to change the spacing between the locking block and the active plate.

[0008] By adopting the above technical scheme, after the two semicircular hoops are tightly sleeved on the corresponding pier columns, the wedge block cylinder drives the wedge block to move toward the locking block. Under the push of the inclined surface of the wedge block, the locking block is away from the active plate, so that the head of the tensioning bolt can be close to the wedge block, so that the active plate and the passive plate are tightly attached, so that the two semicircular hoops are pressed tightly against the surface of the pier column, and the two semicircular hoops are tightened on the pier column. There is no need for workers to insert bolts into the active plate and the passive plate, which is more convenient, so that the semicircular hoops can be installed and fixed on the pier column accordingly.

[0009] Optionally, the two semicircular hoops form a group, two groups of semicircular hoops are provided, and the same group of movable cylinders are hinged between the two groups of semicircular hoops.

[0010] By adopting the above technical scheme, two groups of semicircular hoops are arranged at the bottom of the pier column, and then the two groups of semicircular hoops are clamped on the pier column in turn, and at the same time, the movable cylinder extends or contracts correspondingly to the semicircular hoops at different heights and clamped on the pier column, so that the two groups of semicircular hoops can be moved from the bottom end of the pier column to the upper end of the pier column, and there is no need to lift the semicircular hoops and install them from the upper end of the pier column, which makes it easier to fix the semicircular hoops at the predetermined position on the upper end of the pier column. At the same time, the hinged setting makes it difficult for the connection between the movable cylinder and the corresponding semicircular hoops to be subjected to excessive stress.

[0011] Optionally, each of the semicircular clamps is provided with box blocks at both peripheries thereof, and guide rollers are provided in the box blocks, which can fit the surface of the pier column, rotate and produce elastic deformation, and the surface of the guide rollers is in an arc shape that fits the pier column.

[0012] By adopting the above technical solution, when the mobile cylinder drives the corresponding semicircular clamp to move upward, the semicircular clamp is not easy to hit the surface of the pier column, so that the semicircular clamp can move smoothly and is not easy to damage the pier column.

[0013] Optionally, the box block is fixedly connected to an outer wall block, the outer wall block is fixedly connected to a spring column, the spring column is plugged with an ejection spring, the ejection spring has one end away from the outer wall block abutted against a roller block sleeved on the spring column, and the guide roller is rotatably connected to the roller block.

[0014] By adopting the above technical solution, when the two semicircular hoops in the same group are clamped on the pier, the push-out spring will be compressed, so that the guide roller does not need to produce excessive deformation, and when the two semicircular hoops in the same group release the pier to move, the guide roller can also be tightly attached to the surface of the pier, so that the corresponding semicircular hoops can move stably.

[0015] Optionally, the two groups of semicircular hoops of the same pier are in a row, and several rows of semicircular hoops are arranged corresponding to all the piers. Each row of semicircular hoops is fixedly connected with a hoop block, and the construction platform is fixedly connected with a platform block hinged to the hoop block. The hoop block is passed through the bottom of the construction platform to limit the rotation angle of the construction platform.

[0016] By adopting the above technical solution, when there is a slight difference in the upward movement height of different rows of semicircular clamps, the construction platform can adaptively tilt at a slight angle, so that the connection between the construction platform and the corresponding semicircular clamp is not easily damaged.

[0017] Optionally, the passive sheet and the active sheet are provided with limiting posts, the limiting posts are plugged into the wedge-shaped block, and the passive sheet is provided with a limiting mechanism which enables the limiting posts to move toward the wedge-shaped block.

[0018] By adopting the above technical solution, when the wedge block moves into position so that the corresponding set of semicircular clamps are tightly clamped on the pier column, the limit column is inserted into the wedge block, so that the wedge block is less likely to move arbitrarily and significantly under external force, and further makes it less likely that the set of semicircular clamps in the clamped state will change state.

[0019] Optionally, the limiting mechanism includes a column bevel block arranged at one end of the limiting column away from the wedge block, a rod bevel block arranged on the wedge block cylinder power rod to move toward the column bevel block, and a return spring sleeved on the limiting column and making the column bevel block away from the passive plate; the inclined surface of the rod bevel block abuts against the inclined surface of the column bevel block so that the column bevel block can be pushed to move toward the wedge block; the limiting column is located at one end in the active plate and is fixedly connected with an anti-slip plate that can abut against the passive plate and the wedge block.

[0020] By adopting the above technical solution, while the wedge block cylinder drives the wedge block to move, it can also drive the rod ramp block to move, so that the column ramp block drives the limit column to move toward the wedge block and plug in, without adding an additional power source to the clamp with limited space.

[0021] Optionally, the active plate is provided with a movable limiting plate that can abut against the side of the wedge block away from the wedge block cylinder, and a telescopic rod that can change its own length is provided between the wedge block cylinder power rod and the wedge block, and the telescopic rod is connected with a telescopic rod spring that forces the wedge block to move away from the wedge block cylinder.

[0022] By adopting the above technical solution, after the wedge block moves into place and abuts against the moving limit plate, the wedge block cylinder power rod continues to extend, so that the length of the telescopic rod is shortened, and then the inclined surface of the rod inclined surface block will abut against the inclined surface of the column inclined surface, so that after the wedge block stops moving, the limit column will be correspondingly inserted into the wedge block, so that the limit column can be tightly inserted into the wedge block, and there is less likely to be a gap between the limit column and the inside of the wedge block, so that after the wedge block moves into place, the wedge block is more difficult to move at will.

[0023] Optionally, the wedge block cylinder power rod is provided with a rod block connected to the rod ramp block and the telescopic rod, the active plate and the passive plate are fixedly connected to the opposite sides with reinforcement plates, the wedge block cylinder is fixedly connected to the reinforcement plates, and the rod block is passed through the adjacent reinforcement plates.

[0024] By adopting the above technical solution, the reinforcing plate makes it more difficult for the connection points between the passive plate and the active plate and the semicircular clamp to bend, and it is also convenient for setting the wedge block cylinder.

[0025] In the second aspect, the present application provides a method for using a self-propelled clamp equipment adopts the following technical solution.

[0026] A method for using a self-propelled clamp equipment, using the above-mentioned self-propelled clamp equipment, specifically includes the following steps.

[0027] Step 1: A row of semicircular hoops is set at the bottom of each pier column, and the same construction platform is set on the semicircular hoop with the highest height in each row;

[0028] Step 2: First, clamp the lowest set of semicircular clamps in each row to the pier column, and then move the oil cylinder to lift it up;

[0029] Step 3: After the lifting is completed, a group of semicircular clamps with the highest height in each row are clamped tightly to the pier column, and then the cylinder is moved to retract;

[0030] Step 4: Repeat steps 2 and 3 until the construction platform moves to the designated position on the top of the pier. Then each set of semicircular clamps is tightly clamped to the pier, and then construction work can begin.

[0031] By adopting the above technical solution, each row of semicircular hoops can move upward corresponding to their respective piers by themselves, and there is no need to fix the semicircular hoops directly above the piers, which simplifies the construction difficulty and facilitates the installation and fixing of the semicircular hoops on the piers.

[0032] In summary, the present application includes at least one of the following beneficial effects:

[0033] 1. It is not necessary for workers to insert bolts into the active and passive plates, which is more convenient for the installation and fixing of the semicircular clamp on the pier column;

[0034] 2. While the wedge block oil cylinder drives the wedge block to move, it can also drive the rod ramp block to move, so that the column ramp block drives the limit column to move toward the wedge block and plug in, without adding an additional power source to the clamp with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic cross-sectional structure diagram of a self-propelled clamping equipment selected along the length direction of the present application;

[0036] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0037] Figure 3 This is a structural diagram of the highest set of semicircular hoops on a pier;

[0038] Figure 4 Yes Figure 3 A cross-section of the upper part of a group of bolt plates in the figure is provided to show the structural schematic diagram of the tension bolt and the anti-slip plate;

[0039] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0040] Figure 6 yes Figure 3 Enlarged view of center C.

[0041] Description of the reference numerals: 1. semicircular clamp; 2. bolt plate; 21. inner plate of the cylinder; 22. plug rod; 23. end ring; 24. intermediate block; 25. roller groove; 26. waist-shaped opening; 27. rotation limit opening; 3. construction platform; 31. telescopic rod; 32. telescopic rod spring; 33. rod block; 34. reinforcement plate; 35. ejection spring; 36. oil cylinder plate; 37. connection block; 38. anti-drop plate; 39. sleeve; 4. main Moving plate; 41, roller block; 42, hoop block; 43, platform block; 44, limit column; 45, limit mechanism; 46, column ramp block; 47, rod ramp block; 48, return spring; 49, mobile limit plate; 5, passive plate; 51, tension bolt; 52, locking block; 53, wedge block; 54, wedge block cylinder; 55, mobile cylinder; 56, box block; 57, guide roller; 58, outer wall block; 59, spring column. DETAILED DESCRIPTION

[0042] The present application is further described in detail below in conjunction with the accompanying drawings.

[0043] The present application embodiment discloses a self-propelled clamping device, referring to Figure 1 , including several rows of semicircular hoops 1 corresponding to each pier column. In this embodiment, the pier column is vertical and there are two of them. Two groups of semicircular hoops 1 are arranged in each row along the vertical direction. A group of mobile cylinders 55 is installed between the two groups of semicircular hoops 1 in the same row. Two mobile cylinders 55 are arranged symmetrically on the center line of the corresponding semicircular hoops 1. The power rod and the two ends of the cylinder body of each mobile cylinder 55 are hinged to the two semicircular hoops 1 corresponding to each other in the vertical direction in the two groups in the same row. A construction platform 3 is installed above the highest semicircular hoop 1 in each row. The semicircular hoop 1 is installed at the bottom end of the pier column. Then the two groups of semicircular hoops 1 in the same row can be respectively clamped on the pier column and cooperate with the extension and shortening of the mobile cylinder 55, so that the construction platform 3 moves up to the upper end of the pier column, and then the workers carry out construction on the construction platform 3.

[0044] Reference Figure 1 and Figure 2Each group of semicircular clamps 1 is provided with two symmetrical ones, and a group of bolt plates 2 are fixedly connected at both ends of the same group of semicircular clamps 1. Each group of bolt plates 2 includes an active plate 4 and a passive plate 5. The active plates 4 and passive plates 5 of the same group are connected to the adjacent two ends of the same group of semicircular clamps 1 in a one-to-one correspondence. The active plates 4 and passive plates 5 of the same group are fixedly connected to the opposite vertical sides of the active plates 4 and passive plates 5 of the same group. Each group of reinforcing plates 34 is provided with two pieces and each reinforcing plate 34 is horizontal. The two reinforcing plates 34 of the same group are located at the two ends of the connected active plate 4 or passive plate 5 in a one-to-one correspondence. A hoop block 42 is fixedly connected to the upper surface of the reinforcing sheet 34 corresponding to the highest semicircular hoop 1 in each row. A plurality of limited rotation openings 27 are penetrated and opened at the bottom of the construction platform 3 corresponding to each hoop block 42. The hoop block 42 extends into the limited rotation opening 27. A platform block 43 is fixedly connected to each limited rotation opening 27 of the construction platform 3. The hoop block 42 is rotatably connected to the platform block 43. The rotation plane of the hoop block 42 is vertical and parallel to the direction of the line connecting the center points of the two piers, so that when there is a slight inconsistency in the upward movement height of the two rows of semicircular hoop 1, the construction platform can be tilted at a slight angle to adapt, thereby reducing the possibility of damage at the connection between the semicircular hoop 1 and the construction platform 3.

[0045] Reference Figure 3 and Figure 4 The active sheet 4 and the passive sheet 5 of the same group are both provided with a group of tensioning bolts 51, and each group of tensioning bolts 51 can be provided with two, and the heads of the tensioning bolts 51 abut against the vertical side surface of the passive sheet 5 away from the active sheet 4, and one end of the tensioning bolts 51 of the same group passes through the active sheet 4 and is fixedly connected with the same locking block 52, and each active sheet 4 is slidably connected with a group of wedge blocks 53 along the vertical direction toward the side surface of the locking block 52, and each group of wedge blocks 53 is provided with two, and the two wedge blocks 53 of the same group move toward the two ends of the corresponding locking block 52, and the wedge blocks 53 and the locking blocks 52 are both provided with inclined surfaces, so that when the inclined surfaces of the wedge blocks 53 are fitted with the inclined surfaces of the locking blocks 52, the wedge blocks 53 can force the locking blocks 52 to move away from the corresponding active sheet 4, so that the active sheet 4 and the passive sheet 5 of the same group are close to and close to each other, so that the two semicircular clamps 1 of the same group are tightly clamped to the corresponding pier column.

[0046] Reference Figure 3 and Figure 4, the two adjacent reinforcing plates 34 corresponding to the two groups of semicircular clamps 1 in the same row are integrally formed with a cylinder plate 36, and each cylinder plate 36 is fixedly connected to a wedge block cylinder 54. When the mobile cylinder 55 contracts, there is always enough space between the two adjacent cylinder plates 36 corresponding to the semicircular clamps 1 in the same row without conflict. The power rod of the wedge block cylinder 54 is fixedly connected to a door-shaped rod block 33. The two vertical sections of the rod block 33 are penetrated in the vertical direction and slidably connected to the corresponding two reinforcing plates 34, so that an active plate 4 and a passive plate 5 in the same group are located between the two vertical sections of a rod block 33. The same connecting block 37 is integrally formed between the ends of the two wedge blocks 53 in the same group away from the corresponding locking block 52. The connecting block 37 is driven by one end of the vertical section of the adjacent rod block 33, so that the two wedge blocks 53 in the same group can move vertically synchronously.

[0047] Reference Figure 4 Each passive sheet 5 is provided with a set of two limiting posts 44 corresponding to the two wedge-shaped blocks 53 in the same group. The length direction of the limiting posts 44 is perpendicular to the corresponding passive sheet 5. The limiting posts 44 are tightly plugged into the corresponding wedge-shaped blocks 53 along their own length direction. The passive sheet 5 is provided with a limiting mechanism 45 for moving the limiting posts 44 toward the wedge-shaped blocks 53. The limiting mechanism 45 includes a column inclined surface block 46 fixedly connected to the end of the limiting posts 44 that is exposed to the passive sheet 5. The vertical section of the rod block 33 away from the connecting block 37 is fixedly connected to the middle block 24. The middle block 24 is integrally formed with a set of two rod inclined surface blocks 47. The two rod inclined surface blocks 47 in the same group are located at both ends of the middle block 24 in a one-to-one correspondence. The inclined surface of the rod inclined surface block 47 can abut against the inclined surface of the column inclined surface block 46, so that the column inclined surface block 46 drives the limiting posts 44 to approach and be plugged into the wedge-shaped block 53. The limiting column 44 is plugged with a return spring 48 whose two ends correspond to each other and abut against the side surfaces of the passive sheet 5 and the column inclined surface block 46. The return spring 48 enables the column inclined surface block 46 to be pushed back when the rod inclined surface block 47 is away from the column inclined surface block 46. The part of the limiting column 44 located in the active sheet 4 is coaxially fixedly connected with an anti-slip sheet 38. The anti-slip sheet 38 can abut against the side surface of the passive sheet 5 facing the active sheet 4, so that the limiting column 44 is not easy to be separated from the passive sheet 5 under the action of the return spring 48. The anti-slip sheet 38 can also abut against the wedge block 53, so that the limiting column 44 is not easy to be over-inserted into the wedge block 53.

[0048] Reference Figure 4 and Figure 5The active piece 4 is fixedly connected with a horizontal movable limiting piece 49. When the wedge block 53 moves to abut against the movable limiting piece 49, the corresponding passive piece 5 and active piece 4 of the same group abut against each other, so that the two semicircular clamps 1 of the same group are tightly clamped on the pier. The same telescopic rod 31 is fixedly connected between the connecting block 37 and the corresponding vertical section of the rod block 33. The telescopic rod 31 includes a sleeve 39 fixedly connected to the connecting block 37 and in a vertical position. The inner wall of the sleeve 39 is slidably connected with the inner sheet 21 in the vertical direction. The inner sheet 21 is coaxially fixedly connected with the plug rod 22. The end of the plug rod 22 away from the inner sheet 21 is fixedly connected to the corresponding vertical section of the rod block 33. The end face of the sleeve 39 for the plug rod 22 to be inserted is coaxially fixedly connected with the end ring 23. The outer circumferential wall of the plug rod 22 is slidably connected to the inner circumferential wall of the end ring 23 in the vertical direction. The inner sheet 21 abuts against the end ring 23, so that the plug rod 22 is not easy to be separated from the sleeve 39. The same telescopic rod 31 is plugged with a telescopic rod spring 32 , and two ends of the telescopic rod spring 32 abut against the vertical section of the rod block 33 and the connecting block 37 respectively, so as to force the connecting block 37 to stay away from the rod block 33 .

[0049] When the wedge block 53 abuts against the movable limiting plate 49, the rod bevel block 47 just abuts against the column bevel block 46, and then the wedge block cylinder 54 continues to extend, so that the telescopic rod spring 32 is compressed, so that the rod bevel block 47 can push the column bevel block 46 to move, so that the limiting column 44 can be tightly inserted into the wedge block 53.

[0050] Reference Figure 3 and Figure 6, each semicircular hoop 1 is fixedly connected to the circumferential outer wall on both sides of the center point with a box block 56, the box block 56 is close to the peripheral plane of the semicircular hoop 1, and the adjacent outer walls of the box block 56 are provided with a roller groove 25 facing the pier, and the length direction of the roller groove 25 is consistent with a radial direction of the pier, and a guide roller 57 that fits the surface of the pier is installed in the roller groove 25. The guide roller 57 can be a rubber roller, and the axis of the guide roller 57 is consistent with the length direction of the roller groove 25. The surface of the guide roller 57 is concave in the shape of an arc to better fit the circumferential outer wall of the pier, and the two ends of the guide roller 57 in the length direction are coaxially rotatably connected with roller blocks 41, and the two ends of the roller groove 25 in the length direction are provided with a waist-shaped opening 26 that penetrates to the outer wall of the box block 56, and the waist-shaped opening 26 is horizontal and the length direction is perpendicular to the axis direction of the guide roller 57, and each roller block 41 is slidably connected to the corresponding inner wall of the waist-shaped opening 26 along the length direction of the waist-shaped opening 26. The two outer walls of the box block 56 opening the waist-shaped opening 26 are fixedly connected with the outer wall block 58, and the outer wall block 58 is fixedly connected with the spring column 59 whose length direction is consistent with the length direction of the waist-shaped opening 26. Each roller block 41 is sleeved along the length direction of the waist-shaped opening 26 and slidably connected to the corresponding spring column 59. Each spring column 59 is plugged with a push-out spring 35, and the two ends of the push-out spring 35 are correspondingly abutted against the adjacent outer wall block 58 and roller block 41, so that the roller block 41 is far away from the outer wall block 58. When the roller block 41 abuts against the inner wall of the end of the waist-shaped opening 26, the roller block 41 is still sleeved on the spring column 59.

[0051] When a group of semicircular hoops 1 move, the semicircular hoops 1 are easily shaken and collide with the surface of the pier column due to the hinged connection between the moving cylinder 55 and the semicircular hoops 1. The setting of the guide roller 57 enables the guide roller 57 to be tightly attached to the surface of the pier column under the action of the ejection spring 35 when the semicircular hoops 1 move, so that the semicircular hoops 1 are not easy to shake when moving.

[0052] The implementation principle of a self-propelled clamp equipment in an embodiment of the present application is as follows: two rows of semicircular clamps 1 are arranged corresponding to the bottoms of two piers, and a construction platform 3 is built and connected on the corresponding semicircular clamps 1, and then two groups of semicircular clamps 1 in each row are clamped and loosened on the pier in turn, and at the same time, the mobile cylinder 55 cooperates to extend and contract, so that the two rows of semicircular clamps 1 slowly rise, and the construction platform 3 slowly rises to a specified height, and the tightening and loosening of the pier by each group of semicircular clamps 1 can be achieved by controlling the extension and shortening of the wedge block cylinder 54.

[0053] The embodiment of the present application also discloses a method for using a self-propelled clamp equipment, which specifically includes the following steps.

[0054] Step 1: A row of semicircular clamps 1 is correspondingly arranged at the bottom of each pier column, and a same construction platform 3 is arranged on the semicircular clamps 1 with the highest height in each row;

[0055] Step 2: First, a group of semicircular clamps 1 with the lowest height in each row are clamped tightly to the pier column, and then the oil cylinder 55 is moved to lift it up;

[0056] Step 3: After the lifting is completed, a group of semicircular clamps 1 with the highest height in each row are clamped tightly to the pier column, and then the cylinder 55 is moved to retract;

[0057] Step 4: Repeat steps 2 and 3 until the construction platform 3 moves to the designated position on the top of the pier column, and then each set of semicircular clamps 1 is tightly clamped to the pier column, and then the construction work can begin.

[0058] The implementation principle of a method for using a self-propelled clamp equipment in an embodiment of the present application is that the construction platform 3 is driven to move upward synchronously when the two rows of semicircular clamps move upward by themselves, so that the construction platform 3 is finally fixed at a suitable position on the upper end of the pier.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-propelled clamping device, comprising two semicircular clamping hoops (1) which are closely attached to the surface of a pier column to achieve position fixation, an array of bolt plates (2) which are fixedly connected to the semicircular clamping hoops (1) and make the two semicircular clamping hoops (1) close to each other, and a construction platform (3) which is arranged on the semicircular clamping hoops (1) and on which workers can perform construction work, characterized in that: Each group of bolt plates (2) comprises an active plate (4) and a passive plate (5); a row of tension bolts (51) are inserted between the passive plate (5) and the active plate (4); the heads of the tension bolts (51) abut against the passive plate (5); a locking block (52) abutting against the active plate (4) is provided at one end of the tension bolt (51) away from the passive plate (5); a wedge block (53) having an inclined surface abutting against the locking block (52) is slidably connected to the active plate (4); and the active plate (4) is provided with a wedge block capable of driving the wedge block (53) to move toward the locking block (52) so as to change the distance between the locking block (52) and the active plate (4). The two semicircular hoops (1) form a group, two groups of semicircular hoops (1) are provided, and the same group of movable cylinders (55) are hingedly connected between the two groups of semicircular hoops (1); the passive sheet (5) and the active sheet (4) are provided with limit columns (44), the limit columns (44) are inserted into the wedge-shaped block (53), and the passive sheet (5) is provided with a limit mechanism (45) for making the limit columns (44) move toward the wedge-shaped block (53); the limit mechanism (45) comprises a column inclined surface block (46) provided at one end of the limit column (44) away from the wedge-shaped block (53), and a power rod provided at the wedge-shaped block cylinder (54) to move toward the limit column (44). A rod inclined surface block (47) moves toward the column inclined surface block (46), a return spring (48) sleeved on the limiting column (44) and causing the column inclined surface block (46) to move away from the passive plate (5), the inclined surface of the rod inclined surface block (47) abuts against the inclined surface of the column inclined surface block (46) so that the column inclined surface block (46) can be pushed to move toward the wedge block (53), and the limiting column (44) is located in the active plate (4) and one end thereof is fixedly connected to an anti-slip plate (38) capable of abutting against the passive plate (5) and the wedge block (53); the active plate (4) is provided with a movable limiting plate capable of abutting against a side of the wedge block (53) away from the wedge block cylinder (54). (49), a telescopic rod (31) capable of changing its own length is provided between the power rod of the wedge block cylinder (54) and the wedge block (53), and a telescopic rod spring (32) is inserted into the telescopic rod (31) to force the wedge block (53) away from the wedge block cylinder (54); the power rod of the wedge block cylinder (54) is provided with a rod block (33) connected to the rod inclined surface block (47) and the telescopic rod (31), and the active plate (4) and the passive plate (5) are fixedly connected to the opposite sides thereof with reinforcing plates (34), the wedge block cylinder (54) is fixedly connected to the reinforcing plate (34), and the rod block (33) is inserted into the adjacent reinforcing plate (34).

2. A self-propelled clamping device according to claim 1, characterized in that: Box blocks (56) are provided at both peripheries of each semicircular clamp (1), and guide rollers (57) are provided in the box blocks (56) and can fit on the surface of the pier column, rotate and generate elastic deformation, and the surface of the guide rollers (57) is in an arc shape that fits on the pier column.

3. A self-propelled clamping device according to claim 2, characterized in that: The box block (56) is fixedly connected to an outer wall block (58), the outer wall block (58) is fixedly connected to a spring column (59), a push-out spring (35) is inserted into the spring column (59), one end of the push-out spring (35) away from the outer wall block (58) is in contact with a roller block (41) sleeved on the spring column (59), and the guide roller (57) is rotatably connected to the roller block (41).

4. The self-propelled clamping equipment according to claim 1, characterized in that: The two groups of semicircular hoops (1) on the same pier form a row, and several rows of semicircular hoops (1) are arranged corresponding to all the piers. Each row of semicircular hoops (1) is fixedly connected to a hoop block (42), and the construction platform (3) is fixedly connected to a platform block (43) hinged to the hoop block (42). The hoop block (42) is passed through the bottom of the construction platform (3) to limit the rotation angle of the construction platform (3).

5. A method for using a self-propelled clamping device, using a self-propelled clamping device as claimed in any one of claims 1 to 4, characterized in that: The specific steps include: Step 1: a row of semicircular clamps (1) is arranged at the bottom of each pier column, and a same construction platform (3) is arranged on the semicircular clamps (1) with the highest height in each row; Step 2: First, a group of semicircular clamps (1) with the lowest height in each row are clamped tightly to the pier column, and then the oil cylinder (55) is moved to lift it up; Step 3: After the lifting is completed, a group of semicircular clamps (1) with the highest height in each row are clamped tightly to the pier column, and then the cylinder (55) is moved and retracted; Step 4: Repeat steps 2 and 3 until the construction platform (3) moves to the designated position on the top of the pier column, and then each set of semicircular clamps (1) are tightly clamped to the pier column, and then the construction work can begin.

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