CN116201021A - A movable cover beam support structure - Google Patents

Abstract

The invention belongs to the field of cover beam supports, and specifically relates to a movable cover beam support structure, including a lifting platform, and the lifting platform includes two symmetrically arranged power tooth plates and two symmetrically arranged moving tooth plates, so that A support beam, a top beam and an extension beam are sequentially fixed on the top surface of the lifting platform, and a plurality of inclined frames are fixedly connected to the top of the extension beam, and the plurality of inclined frames are equidistantly arranged in parallel, and the top surface of the inclined frame It is arranged at an inclination, and the inner side of the lifting platform is provided with a power assembly, which is used to drive the lifting platform to rise and fall, and the outer side of the lifting platform is provided with a fixed assembly, which is used to connect the lifting platform to the bridge column Fixed, through this design, there is no need for bottom support columns, and after the construction of the cover beam support is completed, the fixation can be released, allowing the whole support to fall down for repeated use, which greatly reduces the cost and reduces a lot of manual high-altitude operations. construction safety.

Description

A movable cover beam support structure

technical field

The invention belongs to the field of cover beam supports, in particular to a movable cover beam support structure.

Background technique

The cap beam refers to the beam set on the top of the bent pile pier for supporting, distributing and transmitting the load of the superstructure, also known as the cap beam, and the beam of reinforced concrete or less reinforced concrete set on the pier (platform) or on the pile .

Due to the large size and heavy weight of the cover beam, it is necessary to build a bracket on the top of the pier at the beginning of the construction to support the structure of the cover beam. After the construction of the cover beam is completed, the bracket will be removed. When building, the bracket is an indispensable part.

The existing cover beam supports are generally erected from the ground, erecting a number of metal columns from the bottom of the pier, and then building supports from the top of the metal columns to hold the cover beam. This method not only has high cost, but also because As the height climbs, the staff needs to work at heights for a long time, resulting in low construction safety.

Therefore, the present invention provides a movable cover beam support structure.

Contents of the invention

In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background art is solved.

The technical solution adopted by the present invention to solve its technical problems is: a movable cover beam support structure according to the present invention, including a lifting platform, and a supporting beam, a top beam and an extension beam are sequentially fixed on the top surface of the lifting platform , the top of the extension beam is fixedly connected with a plurality of inclined frames, and the plurality of inclined frames are equidistantly arranged in parallel. The component is used to drive the lifting platform up and down, and the outside of the lifting platform is provided with a fixing component, which is used to fix the lifting platform and the bridge column. Through this design, there is no need for a bottom support column, and the construction of the cover beam bracket After completion, the fixation can be released, allowing the whole support to fall down for reuse, which greatly reduces the cost, and at the same time reduces a large number of manual high-altitude operations and improves construction safety.

Preferably, the lifting platform includes two symmetrically arranged power tooth plates and two symmetrically arranged moving tooth plates, the power tooth plates and the mobile tooth plates are fixedly connected to each other, and the power assembly includes a plurality of power wheels, One side of the power tooth plate is provided with a through groove that runs through to the other side, and the power wheel is located in the through groove to ensure that the rotation of the power wheel can drive the whole lifting platform to move upward. If the project scale is large, it can also be The power wheel is replaced by a gear, and a vertical gear rail is built on the surface of the pier to ensure a stable climb. Through this setting, the rise and fall of the lifting platform is realized.

Preferably, the movable tooth board and the power tooth board are fixedly connected by two fixed belts and two sets of moving belts, the two fixed belts are arranged symmetrically to the center, and the two sets of moving belts are also arranged symmetrically to the center, and the fixed belts As a fixed material, the moving belt is a flexible material. The fixing assembly includes winding rollers. Two sets of moving belts are fixed on the outside of the winding rollers. The winding rollers are located on the inside of the power tooth plate. The driving part winds up the moving belt, thereby tightening the entire lifting platform, ensuring that the power wheel can fully fit the surface of the pier, thereby driving the structure to rise steadily, and the centers of the two sets of moving belts are arranged symmetrically, so that the two moving belts are in the same position. When rewinding, the two power dies remain still, and the two movable dies move slightly to tighten.

Preferably, the driving part includes a geared motor, the output end of the geared motor is fixedly connected with a pinion, the end of the winding roller is fixedly connected with a large gear, and the large gear meshes with the pinion, and the winding roller There are two sets of inner grooves on the surface of the belt, the end of the moving belt is fixedly connected to the surface of the inner grooves, and the small gear drives the large gear to rotate, which realizes the effect of deceleration and lift force, thus giving enough power to the winding roller, which can The moving belt winds up to the outside of the winding roller.

Preferably, the support beam includes two I-shaped steels parallel to each other, and the two I-shaped steels are fixedly connected to the top surfaces of the two power tooth plates, and the top beam also includes two I-shaped steels parallel to each other. The beam and the support beam form a well-shaped shape. The expansion beam includes a plurality of I-shaped steels arranged in parallel. The expansion beam is fixed on the top surface of the top beam on both sides. Adjust the number of extension beams by weight to ensure sufficient support.

Preferably, the overlapping beams include a plurality of I-shaped steels, one end of the overlapping beams is affixed to the top surface of one of the I-shaped steels of the top beam, and the other end of the overlapping beams is affixed to two support structures, The overlapping beam can be overlapped between the two supports to improve the overall stability, and with this arrangement, when the first lifting platform is positioned, the overlapping beam can also position the adjacent lifting platform.

Preferably, the outer side of the power tooth plate is provided with a fixing groove penetrating to the inside, the outer side of the power tooth plate is rotatably connected with a fixed cover, the fixed cover is located outside the fixing groove, and the outer side of the power tooth plate is provided There are multiple insertion rods. Measure the height at the top of the outside of the bridge pier in advance, and make holes. When the lifting platform is in place, open the fixing cover, insert the insertion rods into it through the fixing groove, combine with the pier, and then fix the The cover is closed, which ensures that the lifting platform has a super strong fixing effect with the pier after it rises, and can stably support the bracket.

Preferably, the pile-burying pipe is arranged in a cylindrical shape, the end of the insertion rod is arranged in a flat shape, and a plurality of rotating balls are rotatably connected to the inner side wall of the moving tooth plate, so that the pile-burying pipe is buried in the bridge pier In combination with the flat setting of the end of the insertion rod, even if there is a slight error between the fixing groove and the pile pipe, the insertion rod can be inserted into the pile pipe during the smashing process. At this time, manual high-altitude operations are required, but compared to Traditional homework, time is very short.

Preferably, the inclined frame includes a bottom plate and a top plate, the bottom plate and the top plate are rotatably connected, the bottom plate is fixedly connected to the top surface of the expansion beam, the bottom surface of the bottom plate is rotatably connected to a hydraulic rod, and the extension of the hydraulic rod is controlled at the bottom. Long, adjust the angle between the top plate and the bottom plate, thereby changing the inclination of the top plate, so that the equipment does not need to be welded, and can adapt to cover beams of various angles.

Preferably, the top surface of the bottom plate is provided with a plurality of top grooves, the cross-section of the top groove is arranged in an arc shape, and the top surface of the top plate is provided with a plurality of friction grooves. The setting of the top grooves allows the hydraulic rod to change When supporting at an angle, the hydraulic rod can be stuck more stably, and the setting of the friction groove can increase the friction force on the top surface of the top plate.

The beneficial effects of the present invention are as follows:

1. A kind of movable cover beam support structure according to the present invention, through the setting of lifting platform, first lift platform is socketed on the outer bottom of bridge pier, then support beam, top beam, extension beam and inclined frame of support structure It is built above the lifting platform, and then the lifting platform is driven up by the power component, and the lifting platform and the entire support structure are moved to the bottom of the cover beam, and then the entire lifting platform and the pier are fixed by the fixing component. Through this design, no need The bottom supports the column, and after the construction of the cover beam support is completed, it can be unfixed, allowing the whole support to fall for reuse, which greatly reduces the cost, reduces a lot of manual high-altitude operations, and improves construction safety.

2. A movable cover beam support structure according to the present invention forms a well-shaped shape through a plurality of I-shaped steels to form a stable support layer without affecting the expansion and tightening of the lifting platform, and then lays a plurality of The extension beam formed by I-shaped steel is the main supporting surface, which plays a major supporting role. The whole structure is orderly and tidy, and the number of extension beams can be adjusted according to the weight to be supported to ensure sufficient support.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a schematic diagram of the expanded structure of the present invention;

Fig. 3 is the perspective view of lifting platform among the present invention;

Fig. 4 is a perspective view of a power tooth plate and an insertion rod in the present invention;

Fig. 5 is the perspective view of winding roller among the present invention;

Fig. 6 is a perspective view of a tilting frame in the present invention;

In the figure: 1. Lifting platform; 2. Top beam; 3. Support beam; 4. Expansion beam; 5. Lap beam; ;10, insert rod; 11, power wheel; 12, rotating ball; 13, fixed belt; 14, moving belt; 15, fixed slot; 16, large gear; 17, reduction motor; 18, winding roller; 20. Top plate; 21. Friction groove; 22. Hydraulic rod; 23. Top groove; 24. Piling pipe.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

Embodiment one

As shown in Figures 1 to 2, a movable cover beam support structure according to an embodiment of the present invention includes a lifting platform 1, and a supporting beam 3, a top beam 2 and a supporting beam 2 are sequentially fixed on the top surface of the lifting platform 1. The extension beam 4, the top of the extension beam 4 is fixed with a plurality of inclined frames 6, and the plurality of inclined frames 6 are equidistantly arranged in parallel, the top surface of the inclined frame 6 is inclined, and the inner side of the lifting platform 1 A power component is provided, and the power component is used to drive the lifting platform 1 to rise and fall, and a fixing component is arranged on the outside of the lifting platform 1, and the fixing component is used to fix the lifting platform 1 and the bridge column. When working, the existing The support of the cover beam generally rises from the ground, erecting multiple metal columns from the bottom of the pier, and then constructing supports from the top of the metal columns to hold the cover beam. This method is not only costly, but also due to the The increase in height requires the staff to work at high altitude for a long time, resulting in low construction safety. Through the setting of the lifting platform 1, the lifting platform 1 is firstly connected to the outer bottom of the pier, and then the supporting beam 3 and the top beam of the support structure 2. The expansion beam 4 and the inclined frame 6 are built above the lifting platform 1, and then the lifting platform 1 is driven up by the power component, and the lifting platform 1 and the entire support structure are moved to the bottom of the cover beam, and then the entire lifting platform is lifted by the fixing component. Platform 1 is fixed to the bridge pier. With this design, there is no need to support the column at the bottom, and after the construction of the cover beam support is completed, the fixation can be released, allowing the whole support to fall down for reuse, which greatly reduces the cost and reduces a lot of labor. High-altitude operation improves construction safety.

As shown in Figures 1 to 3, the lifting table 1 includes two symmetrically arranged power tooth plates 8 and two symmetrically arranged movable tooth plates 7, and the power tooth plates 8 and the mobile tooth plates 7 are fixedly connected to each other. , the power assembly includes a plurality of power wheels 11, one side of the power tooth plate 8 is provided with a through groove through to the other side, and the power wheel 11 is located in the through groove. When working, the two power teeth The plate 8 and the two moving tooth plates 7 are connected and socketed on the outside of the bridge pier, so that the power wheel 11 fits on the outside of the bridge pier, and the two power tooth plates 8 and the two moving tooth plates 7 are tightened by the fixed assembly to ensure that the power wheel 11 The rotation of the whole lifting platform 1 can be driven upwards. If the project scale is large, the power wheel 11 can also be replaced by a gear, and a vertical gear rail can be built on the surface of the pier to ensure stable climbing. The rising and falling of lifting platform 1 is realized.

As shown in Figures 3 to 4, the movable tooth plate 7 and the power tooth plate 8 are fixedly connected by two fixed belts 13 and two groups of moving belts 14, the two fixed belts 13 are symmetrically arranged in the center, and the two groups of moving The belt 14 is also arranged symmetrically to the center. The fixed belt 13 is a fixed material, and the moving belt 14 is a flexible material. The fixed assembly includes a winding roller 18, and two groups of moving belts 14 are fixed on the outside of the winding roller 18. The winding roller 18 is located on the inner side of the power tooth plate 8, and the outer side of the winding roller 18 is provided with a driving member. When working, when the two power tooth plates 8 and the two moving tooth plates 7 are spliced, the driving part is started to drive the winding roller 18 rotates to roll up the moving belt 14, thereby tightening the whole lifting platform 1, ensuring that the power wheel 11 can fully fit the pier surface, thereby driving the structure to rise steadily, and the centers of the two sets of moving belts 14 are arranged symmetrically, so that the two When a moving belt 14 is rewinding, the two power tooth plates 8 remain motionless, and the two moving tooth plates 7 move slightly to tighten up.

As shown in Figures 4 to 5, the driving member includes a geared motor 17, the output end of the geared motor 17 is fixedly connected with a small gear, and the end of the winding roller 18 is fixedly connected with a large gear 16, and the large gear 16 is fixedly connected to the end of the winding roller 18. The gear 16 is meshed with the pinion, and the surface of the winding roller 18 is provided with two sets of inner grooves, and the end of the moving belt 14 is fixedly connected to the surface of the inner grooves. When working, the pinion drives the large gear 16 to rotate. The effect of deceleration lift is realized, so that enough power is given to the winding roller 18, and the moving belt 14 can be wound into the outside of the winding roller 18.

As shown in Figures 1 to 3, the support beam 3 includes two I-shaped steels parallel to each other, and the two I-shaped steels are fixedly connected to the top surfaces of the two power tooth plates 8, and the top beam 2 also includes two The I-shaped steels parallel to each other, the top beam 2 and the support beam 3 form a well-shaped shape, the expansion beam 4 includes a plurality of I-shaped steels arranged in parallel, and the expansion beam 4 is fixed on the top surface of the top beam 2 by two side, when working, the support beam 3 is fixed on the outside of the two power die plates 8, because the lifting platform 1 is tightened, the two movable die plates 7 need to be moved, so the support point is not set on the movable die plates 7, through multiple The I-shaped steel forms a well-shaped shape to form a stable support layer without affecting the expansion and tightening of the lifting platform 1. Afterwards, the extension beam 4 formed by laying a plurality of I-shaped steels on the top beam 2 is the main supporting surface and plays a major role. Support effect, the whole structure is orderly and tidy, and the number of extension beams 4 can be adjusted according to the weight to be supported to ensure sufficient support.

As shown in Figures 1 to 2, the lap beam 5 includes a plurality of I-shaped steels, one end of the lap beam 5 is fixed on the top surface of one of the I-shaped steels of the top beam 2, and the lap beam 5 The other end is fixedly connected with the two support structures. During work, the lap beam 5 can be lapped between the two supports to improve the overall stability, and this setting, when the first lifting platform 1 is positioned, the lap beam 5 5 can also give adjacent elevating platform 1 location.

As shown in Figures 3 to 4, the outer side of the power tooth plate 8 is provided with a fixed groove 15 penetrating to the inside, and the outer side of the power tooth plate 8 is rotatably connected with a fixed cover 9, and the fixed cover 9 is located in the fixed groove. 15, the outside of the power dental plate 8 is provided with a plurality of insertion rods 10. During work, the height is measured in advance at the position near the top of the outside of the pier, and a hole is made. When the lifting platform 1 is in place, the fixed cover 9 is opened, the insertion rod 10 is inserted therein through the fixing groove 15, and is combined with the pier, and then the fixing cover 9 is closed to ensure that the lifting platform 1 has a strong fixing effect with the pier after it rises, and can support the support stably.

As shown in Figures 3 to 4, the pile-burying pipe 24 is arranged in a cylindrical shape, and the end of the insertion rod 10 is arranged in a flat shape. Ball 12, turning ball 12 can reduce frictional force, allow movable dental plate 7 to move conveniently, during work, embedded pile pipe 24 is embedded in the bridge pier, coordinates the flat setting of insertion rod 10 ends, even if fixed groove 15 and pile pipe 24 has a little error, also can insert rod 10 in the buried pile pipe 24 in smashing process, need manually carry out high-altitude operation this moment, but compared with traditional operation, the time is very short.

Embodiment two

As shown in Figure 6, Comparative Example 1, wherein another embodiment of the present invention is: the inclined frame 6 includes a bottom plate 19 and a top plate 20, the bottom plate 19 and the top plate 20 are rotatably connected, and the bottom plate 19 is connected to the extension The top surface of the beam 4 is fixed, and the bottom surface of the bottom plate 19 is rotatably connected with a hydraulic rod 22. During work, the angle between the top plate 20 and the bottom plate 19 is adjusted by controlling the extension of the hydraulic rod 22 at the bottom, thereby changing the inclination of the top plate 20. , so that the equipment does not need to be welded, and can be adapted to cover beams of various angles.

The top surface of the base plate 19 is provided with a plurality of top grooves 23, the cross section of the top groove 23 is arc-shaped, and the top surface of the top plate 20 is provided with a plurality of friction grooves 21. During work, the top groove 23 It is set so that when the hydraulic rod 22 changes the angle for support, the hydraulic rod 22 can be stuck more stably, and the setting of the friction groove 21 can increase the frictional force on the top surface of the top plate 20 .

During work, the existing cover beam supports are generally erected from the ground, and a plurality of metal columns are erected from the bottom of the pier, and then a support is built from the top of the metal columns to hold the cover beam. This method not only costs a lot , and as the height climbs, the staff needs to work at heights for a long time, resulting in low construction safety. Through the setting of the lifting platform 1, the lifting platform 1 is firstly connected to the outer bottom of the pier, and then the support of the support structure The beam 3, the top beam 2, the extension beam 4 and the tilting frame 6 are built above the lifting platform 1, and then the lifting platform 1 is driven up by the power component, and the lifting platform 1 and the entire support structure are moved to the bottom of the cover beam, and then passed The fixing component fixes the entire lifting platform 1 and the bridge pier. Through this design, there is no need for bottom supporting columns, and after the construction of the cover beam bracket is completed, the fixing can be released, allowing the whole bracket to fall for reuse, which greatly reduces the cost. Reduce a lot of manual high-altitude operations and improve construction safety; connect two power tooth plates 8 and two mobile tooth plates 7 on the outside of the bridge pier, let the power wheel 11 fit on the outside of the bridge pier, pull through the fixed assembly Tighten the two power tooth plates 8 and the two mobile tooth plates 7 to ensure that the rotation of the power wheel 11 can drive the whole lifting platform 1 to move up. If the project scale is large, the power wheel 11 can also be replaced as a gear part, and the power wheel 11 can be replaced on the bridge pier. Vertical gear rails are built on the surface to ensure stable climbing. Through this setting, the rise and fall of the lifting platform 1 is realized; The winding roller 18 rotates to wind up the moving belt 14, thereby tightening the whole lifting platform 1 to ensure that the power wheel 11 can fully fit the surface of the bridge pier, thereby driving the structure to rise steadily, and the centers of the two sets of moving belts 14 are arranged symmetrically. When the two moving belts 14 are being rolled up, the two power tooth plates 8 remain stationary, and the two mobile tooth plates 7 move slightly to tighten; the small gear drives the large gear 16 to rotate, thereby realizing the effect of deceleration and lifting force, thereby Enough power is given to the winding roller 18, and the moving belt 14 can be drawn into the outside of the winding roller 18; the support beam 3 is fixed on the outside of the two power tooth plates 8, and the two moving tooth plates 7 need to move due to the tightening of the lifting platform 1. Therefore, the support point is not set on the movable tooth plate 7, and a well-shaped shape is formed by a plurality of I-shaped steels to form a stable support layer without affecting the expansion and tightening of the lifting platform 1, and then a plurality of I-shaped steels are laid on the top beam 2 The formed extension beam 4 is the main support surface, which has the main support effect. The whole structure is orderly and tidy, and the quantity of the extension beam 4 can be adjusted according to the weight to be supported, so as to ensure that the support strength is sufficient; the overlapping beam 5 can be overlapped Between the two brackets, the overall stability is improved, and with this arrangement, when the first lifting platform 1 is positioned, the lap beam 5 can also position the adjacent lifting platform 1; it is pre-positioned on the outside of the pier near the top Measure the height and make a hole. When the lifting platform 1 is in place, open the fixed cover 9, insert the insertion rod 10 into it through the fixing groove 15, and combine it with the pier, and then close the fixed cover 9 to ensure that the lifting platform 1 rises. There is a super-strong fixing effect with the bridge pier, which can support the support stably; the buried pile pipe 24 is embedded in the bridge pier, and the flat setting of the end of the insertion rod 10 is coordinated. Even if there is a little error between the fixing groove 15 and the buried pile pipe 24, The insertion rod 10 can be inserted into the buried pile pipe 24 during the smashing process. At this time, manual high-altitude operations are required, but compared with traditional operations, the time is very short; by controlling the elongation of the hydraulic rod 22 at the bottom, the top plate 20 can be adjusted The angle with the bottom plate 19, thereby changing the inclination of the top plate 20, so that the equipment does not need to be welded dead, and can be adapted to cover beams of various angles; the setting of the top groove 23 allows the hydraulic rod 22 to change the angle for support, and it can be stuck more stably The hydraulic rod 22 and the setting of the friction groove 21 can increase the frictional force on the top surface of the top plate 20 .

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A movable cover beam support structure, characterized in that: comprising a lifting platform (1), the top surface of the lifting platform (1) is sequentially fixed with support beams (3), top beams (2) and extension beams (4), the top of the expansion beam (4) is fixedly connected with a plurality of inclined frames (6), and the plurality of inclined frames (6) are equidistantly arranged in parallel, and the top surface of the inclined frame (6) is arranged obliquely , the inner side of the lifting platform (1) is provided with a power assembly, the power assembly is used to drive the lifting platform (1) to rise and fall, and the outer side of the lifting platform (1) is provided with a fixed assembly, and the fixed assembly is used for Fix the lifting platform (1) to the bridge column. 2. A movable cover beam support structure according to claim 1, characterized in that: the lifting platform (1) includes two symmetrically arranged power tooth plates (8) and two symmetrically arranged moving tooth plates plate (7), the power tooth plate (8) and the mobile tooth plate (7) are fixed to each other, the power assembly includes a plurality of power wheels (11), and one side of the power tooth plate (8) is provided with Through the through groove on the other side, the power wheel (11) is located in the through groove. 3. A movable cover beam support structure according to claim 2, characterized in that: two fixing belts (13) and two sets of The moving belt (14) is fixedly connected, and the two fixed belts (13) are centrally symmetrically arranged, and the two groups of moving belts (14) are also arranged centrally symmetrically, the fixed belt (13) is a fixed material, and the moving belt (14 ) is a flexible material, the fixed assembly includes a winding roller (18), two groups of moving belts (14) are fixed on the outside of the winding roller (18), and the winding roller (18) is located on the inside of the power die plate (8), The outer side of the winding roller (18) is provided with a driving member. 4. A movable cover beam support structure according to claim 3, characterized in that: said drive member comprises a geared motor (17), and a pinion is fixedly connected to the output end of said geared motor (17), so The end of the winding roller (18) is fixedly connected with a large gear (16), and the large gear (16) meshes with the pinion. The surface of the winding roller (18) is provided with two sets of inner grooves, and the moving The end of the band (14) is affixed to the surface of the inner groove. 5. A movable cover beam support structure according to claim 1, characterized in that: said supporting beam (3) comprises two I-shaped steels parallel to each other, and the two I-shaped steels are divided into two dynamic tooth plates (8) The top surface is affixed, and the top beam (2) also includes two mutually parallel I-shaped steels, and the top beam (2) and the supporting beam (3) form a well shape, and the expansion beam (4) It includes a plurality of I-shaped steels arranged in parallel, and the expansion beam (4) is fixedly connected to the top surface of the top beam (2) near both sides. 6. A movable cover beam support structure according to claim 5, characterized in that: it also includes a lap beam (5), and the lap beam (5) includes a plurality of I-shaped steels, and the lap beam One end of (5) is affixed to one of the I-shaped steel top surfaces of the top beam (2), and the other end of the lap beam (5) is affixed to two support structures. 7. A movable cover beam support structure according to claim 4, characterized in that: the outer side of the power tooth plate (8) is provided with a fixing groove (15) penetrating to the inner side, and the power tooth plate (8) The outer side of 8) is rotatably connected with a fixed cover (9), the fixed cover (9) is located outside the fixed groove (15), and a plurality of insertion rods (10) are arranged on the outer side of the power tooth plate (8). 8. A movable cover beam support structure according to claim 7, characterized in that: the outside of the lifting platform (1) is provided with a pile-burying pipe (24), and the pile-burying pipe (24) is round It is arranged in a cylindrical shape, the end of the insertion rod (10) is arranged in a flat shape, and a plurality of rotating balls (12) are rotatably connected to the inner side wall of the moving tooth plate (7). 9. A movable cover beam support structure according to claim 8, characterized in that: the inclined frame (6) comprises a bottom plate (19) and a top plate (20), and the bottom plate (19) and the top plate (20) ) is rotationally connected, the base plate (19) is affixed to the top surface of the extension beam (4), and the bottom surface of the base plate (19) is rotationally connected with a hydraulic rod (22). 10. A movable cover beam support structure according to claim 9, characterized in that: a plurality of top grooves (23) are opened on the top surface of the bottom plate (19), and the top grooves (23) The section is arranged in an arc shape, and a plurality of friction grooves (21) are opened on the top surface of the top plate (20).

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