An ancient building beam structure component connection device

Abstract

The present invention relates to the technical field of beam structure member connection, and specifically relates to a connection device for ancient building beam structure members; it includes a base; each of the four corner positions on the lower end surface of the base is installed with a self-locking caster, the left side of the upper end surface of the base is installed with a supporting plate through a support column, a staircase is built on each of the left and right sides of the base through a load-bearing plate, a workbench is installed above the supporting plate through a lifting mechanism, a connection mechanism is installed on the workbench, and a lifting mechanism for lifting vertical beams and columns is arranged on the base; the present invention solves the problems that currently, when connecting ancient building beam structure members, the main method is to connect the columns and beams by knocking, which is time-consuming and laborious, will cause damage to the columns and beams, and the operation space is limited and it is not convenient to perform knocking and fixing, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of beam structure member connection, and specifically to a connection device for ancient building beam structure members. Background Art

[0002] The main ancient building beam structure members refer to: crossbeams - horizontal members used to bear and transfer the weight of the roof, with grooves for fixing columns; columns - as supports for the beams, while bearing their own weight and the vertical load of the roof, having rectangular grooves for fixing other members and rectangular ends for mating with the grooves of the crossbeams; purlins - used to fix two intersecting beams to increase the stability of the beams; mortise and tenon joints - fittings for connecting members such as crossbeams, columns, and purlins.

[0003] Due to the long-term natural erosion of ancient buildings, many members will be damaged. To avoid potential safety hazards and damage to ancient buildings, regular maintenance and replacement of damaged members of ancient building beam structure members are carried out. Among them, the replacement of columns is to disassemble the damaged columns, then replace them with new columns, and fix the columns and crossbeams through mortise and tenon joints by means of knocking.

[0004] However, the current ancient building beam structure members have the following problems during the connection process: The method of connecting columns and crossbeams by knocking, on the one hand, will cause damage to the columns and crossbeams, affecting their service life. On the other hand, the knocking method is inefficient, and the columns are located above the crossbeams and close to the roof, with limited operating space, making it inconvenient to carry out knocking and fixing. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present application provide a connection device for ancient building beam structure members to solve the technical problems in the related art that the existing method of connecting columns and crossbeams by knocking is time-consuming and laborious, will cause damage to the columns and crossbeams, and has limited operating space and is inconvenient for knocking and fixing.

[0006] To achieve the above object, the embodiments of the present application provide the following technical solutions:

[0007] The embodiments of the present application provide a connection device for ancient building beam structure members, including a base; four corner positions on the lower end surface of the base are each installed with a self-locking caster. The upper end surface of the base is installed with a supporting plate through a support column. The base is built with a left-right symmetric staircase through a load-bearing plate. Above the supporting plate, a workbench is installed through a lifting mechanism. A connection mechanism is installed on the workbench, and a lifting mechanism for lifting vertical beams and columns is provided on the base.

[0008] The connecting mechanism includes a fixed block, and a fixed block is symmetrically arranged on the front and rear of the upper end face of the workbench, and the fixed block is a cavity structure. A winding roller is symmetrically installed on the inside of the fixed block, and the same tensioning belt is wound around the two winding rollers in the same fixed block. The tensioning belt slides through the corresponding upper end face of the fixed block. Two clamping blocks are arranged on the tensioning belt through a clamping unit, and protective pads are arranged on the opposite surfaces of the two clamping blocks on the same tensioning belt. An ear seat is symmetrically arranged on the outer wall of the clamping block, and the two opposite ear seats of the two clamping blocks on the same tensioning belt are fixed by butterfly nuts. A mounting block is arranged between the two fixed blocks, and the mounting block is a cavity structure. The winding roller extends to the inside of the mounting block, and a driving unit for driving the winding roller to rotate is installed inside the mounting block.

[0009] As a preferred embodiment, the driving unit includes a No. 1 bevel gear, a No. 1 bevel gear is installed on the winding roller inside the mounting block, a rotating shaft is arranged below the No. 1 bevel gear, both ends of the rotating shaft are rotatably cooperated with the mounting block, a No. 2 bevel gear is installed on the rotating shaft and meshes with the two No. 1 bevel gears opposite to the front and rear, the right end of the rotating shaft passes through the mounting block, a telescopic part is installed on the right end of the rotating shaft, a handle is arranged on the telescopic part, and a limit part for limiting the rotation of the rotating shaft is installed between the rotating shaft and the mounting block.

[0010] As a preferred embodiment, the lifting mechanism includes a roller shaft, and the roller shaft is installed on the upper end surface of the right side of the base through an axis plate, and the front end of the roller shaft passes through the axis plate. A motor is installed on the base on the left side of the roller shaft, and the motor is connected to the roller shaft through a pulley mechanism. A rope is wrapped around the roller shaft, and the two ends of the rope are respectively located on the front and rear sides of the base. Guide wheels are installed symmetrically on the front and rear end surfaces of the workbench, and the ends of the rope pass around the guide wheels on the corresponding side. A hook is provided at each end of the rope.

[0011] As a preferred embodiment, the limiting member includes a T-shaped cylinder, the front end face of the mounting block is coaxially mounted with the rotating shaft, and the rotating shaft and the T-shaped cylinder are rotatably matched, a ratchet is mounted on the rotating shaft part inside the T-shaped cylinder, a cylinder column connected to it is arranged on the horizontal section of the T-shaped cylinder, a T-shaped column is threadedly mounted on the inner thread of the cylinder column, a support rod is rotatably mounted on the lower end face of the T-shaped column, the lower end of the support rod extends into the T-shaped cylinder, and a pawl that cooperates with the ratchet is hinged at the lower end of the support rod through a No. 1 torsion spring.

[0012] As a preferred solution, the clamping unit includes a support plate. On the opposite sides of the two clamping blocks on the same tension belt, a support plate is rotatably installed symmetrically before and after. On the opposite surfaces of the two support plates on the same clamping block, a support plate is installed respectively. Between the two support plates on the same clamping block, an extrusion block is hinged through a second torsion spring. On the opposite surfaces of the two relatively arranged extrusion blocks on the left and right, a V-shaped groove is provided. A roller is arranged between the two support plates on the same clamping block. The tension belt in the same fixed block bypasses two rollers in sequence from a winding roller and is connected to another winding roller.

[0013] As a preferred solution, the telescopic member includes a bottom plate. The right end of the rotating shaft is installed with a bottom plate. A sliding plate is slidably installed in the bottom plate. A handle is rotatably installed on the front end surface of the sliding plate away from the bottom plate. On the front and rear side end faces of the bottom plate, a row of limiting holes are symmetrically arranged respectively. On the front and rear side end faces of the sliding plate, limiting blocks are slidably installed symmetrically through compression springs, and the limiting blocks are matched with the limiting holes.

[0014] As a preferred solution, the lifting mechanism includes a fixed column. A fixed column is installed near each of the four corner positions on the end face of the supporting plate. A sleeve is slidably sleeved on the fixed column. The upper end face of the sleeve is fixed to the workbench. A telescopic oil cylinder is installed on the upper end face of the supporting plate. The telescopic end of the telescopic oil cylinder is connected to the workbench.

[0015] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0016] The connection mechanism set in the present invention clamps the column through the clamping unit to avoid damage to the column. The middle part of the tension belt abuts against the lower surface of the cross beam. By manually rotating the driving unit, the tension belt is tightened, so as to pull the column closer to the cross beam, and then the column and the cross beam are connected and fixed through tenon and mortise, so as to reduce the physical exertion of workers and reduce the space for operating and moving the column, and ensure the butt joint of the column and the cross beam.

[0017] The lifting mechanism set in the present invention makes the two ends of the rope move up and down differently through the rotation of the roller. When the damaged column is lowered, the other end of the rope will transport the new column to the upper part, so as to avoid the accumulation of parts occupying the operation space and shorten the idle period during the operation, and improve the efficiency of column replacement and connection.

[0018] The limiting member set in the present invention can control the cooperation state between the pawl and the ratchet through the up and down movement of the rotating T-shaped column, so as to avoid the reverse rotation of the rotating shaft due to loosening during the connection process of the cross beam and the column, thus affecting the connection process of the cross beam and the column. After the pawl is far away from the ratchet, the rotating shaft can be rotated reversely to relax the tension belt, which is convenient for moving the clamping block and disassembling the clamping block.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0021] Figure 1 It is a schematic diagram of the main structure of the present application.

[0022] Figure 2 It is Figure 1 The second perspective structure diagram of (hiding the columns and crossbeams).

[0023] Figure 3 It is Figure 2 The enlarged structure diagram of part A in .

[0024] Figure 4 It is a schematic diagram of the clamping unit structure of the present application.

[0025] Figure 5 It is a schematic diagram of the partial structure of the driving unit of the present application.

[0026] Figure 6 It is a schematic diagram of the limiting member structure of the present application.

[0027] Figure 7 It is a schematic diagram of the telescopic member structure of the present application.

[0028] Reference Signs:

[0029] 10, base; 11, self-locking casters; 12, supporting plate; 13, staircase; 14, workbench; 2, connecting mechanism; 20, fixing block; 21, winding roller; 22, tensioning belt; 23, clamping block; 24, cushion; 25, mounting block; 26, wing nut; 5, clamping unit; 500, support plate; 501, support plate; 502, extrusion block; 503, roller; 6, driving unit; 60, first bevel gear; 61, rotating shaft; 62, second bevel gear; 63, handle; 64, limiting member; 640, T-shaped cylinder; 641, ratchet; 642, cylinder column; 643, T-shaped column; 644, support rod; 645, pawl; 65, telescopic member; 650, bottom plate; 651, sliding plate; 652, limiting hole; 653, limiting block; 3, lifting mechanism; 30, fixing column; 31, sleeve; 32, telescopic oil cylinder; 4, lifting mechanism; 40, roller; 41, rope; 42, guide wheel; 43, hook. Detailed implementation manners

[0030] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] As Figure 1 shown, a connecting device for ancient building beam structure members includes a base 10; at each of the four corner positions on the lower end surface of the base 10, a self-locking caster 11 is installed. On the upper end surface of the base 10, a supporting plate 12 is installed through a support column. On the base 10, a left-right symmetric staircase 13 is built through a load-bearing plate. Above the supporting plate 12, a workbench 14 is installed through a lifting mechanism 3. A connecting mechanism 2 is installed on the workbench 14. On the base 10, a lifting mechanism 4 for lifting vertical beams and columns is provided.

[0032] As Figure 1 and Figure 2 shown, the lifting mechanism 3 includes a fixed column 30. At each of the four corner positions near the end surface of the supporting plate 12, a fixed column 30 is installed. A sleeve 31 is slidably sleeved on the fixed column 30. The upper end surface of the sleeve 31 is fixed to the workbench 14. A telescopic oil cylinder 32 is installed on the upper end surface of the supporting plate 12. The telescopic end of the telescopic oil cylinder 32 is connected to the workbench 14.

[0033] During specific work, first move the device to the position where the column needs to be replaced, then lock the self-locking casters 11 to fix the device. After that, the worker climbs up from the staircase 13 to the position of the column, and then the telescopic oil cylinder 32 pushes the workbench 14 upward to make the workbench 14 close to the column, so as to facilitate placing and supporting the damaged column, removing the damaged column. The damaged column is moved downward and removed through the lifting mechanism 4. At the same time, the new column is moved upward through the lifting mechanism 4 to the side of the worker. After that, the workers on the two staircases 13 cooperate to first align the column with the cross beam, and then make the cross beam and the column be inserted and tightly connected and fixed through the connecting mechanism 2.

[0034] As Figure 1 and Figure 2As shown, the lifting mechanism 4 includes a roller 40, and the roller 40 is installed on the upper end surface of the right side of the base 10 through an axis plate, and the front end of the roller 40 passes through the axis plate. A motor is installed on the base 10 on the left side of the roller 40, and the motor is connected to the roller 40 through a pulley mechanism. A rope 41 is wound around the roller 40, and both ends of the rope 41 are respectively located on the front and rear sides of the base 10, and guide wheels 42 are symmetrically installed on the front and rear end surfaces of the workbench 14 for rotation, and the ends of the rope 41 pass around the guide wheels 42 on the corresponding side, and a hook 43 is provided at each end of the rope 41.

[0035] During specific work, the end of the rope 41 is pulled downward from the top of the rope 41 after it is wrapped around the column for one circle and passes through the rectangular groove on the column. Then the hook 43 is pulled upward to connect with the upper rope 41. At this time, after the column leaves the support, its weight causes the rope 41 to be tightened. The rope 41 is tightened to lock the column to ensure the stability of the column during the hanging movement. The same rope 41 is wound around the same roller 40. When the motor runs and drives the roller 40 to rotate through the pulley mechanism, the two ends of the rope 41 are tightened and moved upward and loosened and lowered respectively, so that the broken column can be moved downward and the new column can be moved upward at the same time, thereby shortening the work idle period and improving the maintenance and replacement efficiency of the ancient building beams.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the connecting mechanism 2 includes a fixed block 20, and a fixed block 20 is symmetrically arranged on the upper end surface of the workbench 14 in the front and rear directions, and the fixed block 20 is a cavity structure. A winding roller 21 is symmetrically installed in the interior of the fixed block 20 for rotation. The two winding rollers 21 in the same fixed block 20 are wound with the same tensioning belt 22, and the tensioning belt 22 slides through the corresponding upper end surface of the fixed block 20. Two clamping blocks 23 are arranged on the tensioning belt 22 through the clamping unit 5, and the opposite surfaces of the two clamping blocks 23 on the same tensioning belt 22 are provided with a pad 24. The outer wall of the clamping block 23 is symmetrically arranged with an ear seat in the front and rear directions, and the two opposite ear seats of the two clamping blocks 23 on the same tensioning belt 22 are fixed by a butterfly nut 26. A mounting block 25 is arranged between the two fixed blocks 20, and the mounting block 25 is a cavity structure. The winding roller 21 extends to the interior of the mounting block 25, and a driving unit 6 for driving the winding roller 21 to rotate is installed inside the mounting block 25.

[0037] like Figure 3 and Figure 4As shown, the clamping unit 5 includes a support plate 500. On the opposite sides of two clamping blocks 23 on the same tension belt 22, a support plate 500 is rotatably installed symmetrically before and after. On the opposite sides of two support plates 500 on the same clamping block 23, a support plate 501 is installed respectively. Between two support plates 501 on the same clamping block 23, an extrusion block 502 is hinged through a second torsion spring. On the opposite faces of two left - right opposite extrusion blocks 502, a V - shaped groove is provided. Between two support plates 500 on the same clamping block 23, a roller 503 is arranged. The tension belt 22 within the same fixed block 20 bypasses two rollers 503 in sequence from a winding roller 21 and is then connected to another winding roller 21.

[0038] During specific operation, two clamping blocks 23 on the same tension belt 22 are installed on the column, and then the ear seats are made to approach and locked through a wing nut 26, so that the clamping blocks 23 are tightly attached to the column through a cushion 24 for pre - clamping the column. Then, an operator rotates the winding roller 21 through the driving unit 6. The winding roller 21 rotates to wind up the tension belt 22. The middle part of the tension belt 22 abuts against the lower surface of the cross - beam to determine the descending direction of the column. Then, as the winding roller 21 rotates, the tension belt 22 is tightened. As the tension belt 22 is tightened, the extrusion block 502 tightly abuts against the column to further clamp the column. Moreover, since the extrusion block 502 and the support plate 501 are hinged, during the rotation process of the support plate 501, the extrusion block 502 will keep squeezing the column in a facing - each - other manner, thus ensuring the contact area between the extrusion block 502 and the column. Then, the clamping block 23, the column, and the clamping unit 5 are pulled downward by the tension belt 22 to connect and fix the column to the cross - beam. In addition, the cushion 24 prevents hard contact between the clamping block 23 and the clamping unit 5 and the column, which may cause the column to be bruised or scratched, thus affecting its service life.

[0039] As Figure 1 、 Figure 3 and Figure 5 shown, the driving unit 6 includes a first bevel gear 60. The first bevel gear 60 is installed on the winding roller 21 inside the mounting block 25. Below the first bevel gear 60, a rotating shaft 61 is provided. The two ends of the rotating shaft 61 are rotatably matched with the mounting block 25. On the rotating shaft 61, a second bevel gear 62 meshing with two front - and - rear opposite first bevel gears 60 is installed. The right end of the rotating shaft 61 passes through the mounting block 25. A telescopic member 65 is installed at the right end of the rotating shaft 61. A handle 63 is arranged on the telescopic member 65. A limiting member 64 for restricting the rotation of the rotating shaft 61 is installed between the rotating shaft 61 and the mounting block 25.

[0040] As Figure 3 and Figure 6As shown, the limiting member 64 includes a T-shaped cylinder 640, the front end face of the mounting block 25 is coaxially mounted with the rotating shaft 61, and the rotating shaft 61 is rotatably matched with the T-shaped cylinder 640, a ratchet 641 is mounted on the rotating shaft 61 part inside the T-shaped cylinder 640, a cylinder column 642 connected thereto is arranged on the horizontal section of the T-shaped cylinder 640, a T-shaped column 643 is mounted on the internal thread of the cylinder column 642, a support rod 644 is rotatably mounted on the lower end face of the T-shaped column 643, the lower end of the support rod 644 extends into the T-shaped cylinder 640, and a ratchet pawl 645 which is hinged at the lower end of the support rod 644 through a No. 1 torsion spring and cooperates with the ratchet 641.

[0041] During operation, the T-shaped column 643 is manually rotated to move downward, so that the support rod 644 pushes the pawl 645 to move downward and cooperate with the ratchet 641, and then the shaft 61 is manually driven to rotate through the handle 63 and the telescopic member 65 to avoid damage to the components caused by excessive electric driving force; due to the cooperation between the ratchet 641 and the pawl 645, when the handle 63 is released, the pawl 645 will conflict with the ratchet 641 to limit the rotation of the ratchet 641, thereby preventing the shaft 61 from reversing and causing the tension belt 22 to loosen, affecting the process of combining the beam and the column, and the shaft 61 rotates through The meshing of the No. 1 bevel gear 60 and the No. 2 bevel gear 62 drives the winding roller 21 to rotate synchronously, so that the winding roller 21 tightens the tension belt 22. The tightening of the tension belt 22 drives the clamping block 23 fixed with the column and the clamping unit 5 to move downward, so that the connection between the column and the beam is fixed. After the connection between the column and the beam is completed, the T-shaped column 643 is rotated to move upward to make the pawl 645 away from the ratchet 641. At this time, the rotating shaft 61 can be rotated in the opposite direction to make the winding roller 21 rotate to release the tension belt 22. The tension belt 22 is relaxed, and the clamping block 23 can be smoothly separated from the column.

[0042] like Figure 3 and Figure 7 As shown, the telescopic member 65 includes a base plate 650, the right end of the rotating shaft 61 is installed with the base plate 650, a slide plate 651 is slidably installed in the base plate 650, a handle 63 is rotatably installed on the front end surface of the slide plate 651 away from the base plate 650, and a row of limiting holes 652 are symmetrically arranged on the front and rear end surfaces of the base plate 650, and the front and rear end surfaces of the slide plate 651 are symmetrically slidably installed with limiting blocks 653 through compression springs, and the limiting blocks 653 cooperate with the limiting holes 652.

[0043] During specific work, the limit block 653 is manually pressed in the direction of the slide plate 651, and the limit block 653 will disengage from the current limit hole 652 and enter the inside of the base plate 650. Then, the slide plate 651 is pulled outward to a suitable position. The limit block 653 moves outward under the action of the compression spring and cooperates with the current limit hole 652, thereby lengthening the distance between the handle 63 and the rotating shaft 61 to reduce the rotation force required for the rotating shaft 61, making it easier for workers to perform rotation operations.

[0044] When specifically using the present invention to maintain, replace and connect the beam structure components of ancient buildings, first move the device to the position where the column needs to be replaced, then lock the self-locking casters 11 to fix the device. After that, through the lifting mechanism 3, move the workbench 14 close to the column to facilitate placing and supporting the column. Then, use the hoisting mechanism 4 to lower the damaged column, and at the same time move the new column up to the side of the worker. First, manually align the column with the cross beam, and then connect it to the column through the connecting mechanism 2, and pull the column into the slot of the cross beam to complete the connection between the cross beam and the column. After the connection is completed, move the device to other positions that need to be repaired, and repeat the above operations to complete the maintenance and replacement work of the columns at other positions.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0046] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0047] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An ancient building beam structure connection device, comprising a base; characterized in that: A self-locking caster is installed at each of the four corners of the lower end surface of the base, a supporting plate is installed on the upper end surface of the base through a supporting column, a left-right symmetrical staircase is built on the base through the load-bearing plate, a workbench is installed above the supporting plate through a lifting mechanism, a connecting mechanism is installed on the workbench, and a lifting mechanism for lifting vertical beams and columns is provided on the base; wherein: The connecting mechanism comprises a fixed block, the upper end face of the workbench is symmetrically provided with a fixed block in the front and rear, and the fixed block is a cavity structure, a winding roller is symmetrically installed in the interior of the fixed block, and the same tensioning belt is wound around the two winding rollers in the same fixed block, and the tensioning belt slides through the corresponding upper end face of the fixed block, and two clamping blocks are provided on the tensioning belt through a clamping unit, and the opposite surfaces of the two clamping blocks on the same tensioning belt are provided with pads, and the outer wall of the clamping block is symmetrically provided with an ear seat in the front and rear, and the two opposite ear seats of the two clamping blocks on the same tensioning belt are fixed by butterfly nuts, and a mounting block is provided between the two fixed blocks, and the mounting block is a cavity structure, and the winding roller extends to the interior of the mounting block, and a driving unit for driving the winding roller to rotate is installed inside the mounting block; The driving unit comprises a No. 1 bevel gear, a No. 1 bevel gear is installed on the winding roller inside the mounting block, a rotating shaft is arranged below the No. 1 bevel gear, both ends of the rotating shaft are rotatably matched with the mounting block, a No. 2 bevel gear meshing with two No. 1 bevel gears opposite to each other is installed on the rotating shaft, the right end of the rotating shaft passes through the mounting block, a telescopic member is installed on the right end of the rotating shaft, a handle is arranged on the telescopic member, and a limit member for limiting the rotation of the rotating shaft is installed between the rotating shaft and the mounting block; The limiting member includes a T-shaped cylinder, the front end face of the mounting block is coaxially mounted with the rotating shaft with the T-shaped cylinder, and the rotating shaft and the T-shaped cylinder are rotatably matched, a ratchet is mounted on the rotating shaft part in the T-shaped cylinder, a cylinder column connected with the T-shaped cylinder is arranged on the horizontal section of the T-shaped cylinder, a T-shaped column is mounted on the inner thread of the cylinder column, a support rod is rotatably mounted on the lower end face of the T-shaped column, the lower end of the support rod extends into the T-shaped cylinder, and a ratchet pawl that is in contact with the ratchet is hingedly connected to the lower end of the support rod through a No. 1 torsion spring.

2. The connecting device for ancient building beam structure members according to claim 1, wherein: The lifting mechanism includes a roller shaft, and the roller shaft is installed on the upper end surface of the right side of the base through an axis plate. The front end of the roller shaft passes through the axis plate. A motor is installed on the base on the left side of the roller shaft. The motor is connected to the roller shaft through a pulley mechanism. A rope is wrapped around the roller shaft, and the two ends of the rope are respectively located on the front and rear sides of the base. Guide wheels are installed symmetrically on the front and rear end surfaces of the workbench, and the ends of the rope pass around the guide wheels on the corresponding side. A hook is provided at each end of the rope.

3. The connecting device for ancient building beam structure members according to claim 1, characterized in that: The clamping unit includes a support plate, and the two clamping blocks on the same tensioning belt are symmetrically and rotatably installed with a support plate on their opposite sides. The opposite backs of the two support plates on the same clamping block are each installed with a support plate. An extrusion block is hinged between the two support plates on the same clamping block through a No. 2 torsion spring. V-shaped grooves are provided on the opposite surfaces of the two extrusion blocks opposite to each other on the left and right. A roller is arranged between the two support plates on the same clamping block, and the tensioning belt in the same fixed block passes around the two rollers in sequence from one winding roller to be connected to the other winding roller.

4. The connecting device for ancient building beam structure members according to claim 2, characterized in that: The telescopic member includes a bottom plate. The right end of the rotating shaft is equipped with a bottom plate. A sliding plate is slidably installed in the bottom plate. A handle is rotatably installed on the front end face of the sliding plate away from the bottom plate. A row of limiting holes is symmetrically arranged on the front and rear side end faces of the bottom plate. The front and rear side end faces of the sliding plate are slidably installed with limiting blocks in cooperation with compression springs, and the limiting blocks cooperate with the limiting holes.

5. The connecting device for ancient building beam structure members according to claim 1, wherein: The lifting mechanism includes fixed columns. A fixed column is installed at each of the four corner positions close to the end face of the supporting plate. A sleeve is slidably sleeved on the fixed column. The upper end face of the sleeve is fixed to the workbench. A telescopic oil cylinder is installed on the upper end face of the supporting plate. The telescopic end of the telescopic oil cylinder is connected to the workbench.

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