CN112049025A - Balancing unit convenient to bridge level is turned construction - Google Patents
Balancing unit convenient to bridge level is turned construction Download PDFInfo
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- CN112049025A CN112049025A CN202010850624.8A CN202010850624A CN112049025A CN 112049025 A CN112049025 A CN 112049025A CN 202010850624 A CN202010850624 A CN 202010850624A CN 112049025 A CN112049025 A CN 112049025A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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Abstract
The invention belongs to the field of bridge construction, and particularly relates to a balancing device convenient for horizontal rotation construction of a bridge, wherein a rotating seat is connected on a support seat ascending and descending assembly in a transmission manner, a driving motor is fixedly connected on the inner wall of one side of an installation cavity on the rotating seat, a gear is fixedly sleeved at one end of a rotating shaft fixedly connected on an output shaft of the driving motor, a ball screw is rotatably connected on the inner wall of the bottom of the installation cavity, a screw nut is connected on the ball screw in a threaded manner, a toothed plate meshed with the gear is fixedly connected on one side of the screw nut, the top end of the ball screw penetrates through a circular groove on the top of the rotating seat and is fixedly connected with a turntable, the bottom end of a bridge main body extends into a positioning groove on the top of the turntable and is clamped with the positioning groove, and a clamping device forming a triangular shape with the bridge main, no tilting occurs.
Description
Technical Field
The invention belongs to the field of bridge construction, and relates to a balancing device convenient for horizontal rotation construction of a bridge.
Background
The bridge is a building constructed for a road to cross natural or artificial barriers, is erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through, and is constructed on two banks or two sides of the road by dividing the whole bridge crossing rivers, highways and railways into two parts by a bridge turning technology, and after the upper structure of the bridge is basically finished, the two parts are folded into an integral bridge by rotating beam bodies on the two banks or two sides of the road.
When the existing bridge is in rotating construction, friction is too large in the relative rotating process, so that the bridge is not easy to rotate, and when the bridge rotates, the bridge is easy to incline, and construction is influenced.
Disclosure of Invention
In view of the above, the invention provides a balancing device for facilitating horizontal rotation construction of a bridge, which aims to solve the problems that when the bridge is rotated, the bridge is not easy to rotate due to excessive friction in the relative rotation process, and the bridge is easy to incline to influence the construction during rotation.
In order to achieve the above purpose, the invention provides a balancing device convenient for horizontal rotation construction of a bridge, comprising a supporting seat and a bridge main body, wherein the supporting seat is provided with a lifting assembly, the lifting assembly is in transmission connection with a rotating seat, the rotating seat is provided with an installation cavity, the inner wall of one side of the installation cavity is fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly sleeved with a gear, the inner wall of the bottom of the installation cavity is rotatably connected with a ball screw, the ball screw is in threaded connection with a screw nut, one side of the screw nut is fixedly connected with a toothed plate, the toothed plate is meshed with the gear, the top of the rotating seat is provided with a circular groove, the top end of the ball screw penetrates through the circular groove and is fixedly connected with a rotating disc, the top of the rotating disc is provided with a positioning groove, the, the top symmetry fixedly connected with two thread plates of carousel, equal threaded connection has the screw thread axle on two thread plates, and the one end that two screw thread axles are close to each other all rotates and is connected with the movable plate, the equal fixedly connected with fixed column in top of two movable plates, the equal fixedly connected with pinch-off blades of one end of two fixed columns, and one side that two pinch-off blades are close to each other closely laminates with the both sides of bridge main part respectively.
The beneficial effect of this basic scheme lies in: through making two fixed columns and two clamp plates and bridge main part and carousel form a triangle-shaped form, can increase the stability for the bridge main part can keep balance when turning the construction, can not take place the slope, and makes things convenient for the bridge to rotate through the carousel, and rotates stably, can not take place the slope, has improved the equilibrium, is convenient for turn the construction.
Further, the lifting unit is including establishing the fixed cavity on the supporting seat, fixedly connected with push rod motor on the bottom inner wall of fixed cavity, fixedly connected with lifter plate on the output shaft of push rod motor, two spliced poles of the top symmetry fixedly connected with of lifter plate, the bottom of rotating the seat extend to in the fixed cavity and with the top fixed connection of two spliced poles. Has the advantages that: the push rod motor can make the bridge main part go up and down, conveniently removes to suitable position, the construction of being convenient for.
Furthermore, equal fixedly connected with landing leg on the bottom four corners position of supporting seat, the equal fixedly connected with blotter in bottom of four landing legs, the bottom of blotter is equipped with anti-skidding line. Has the advantages that: can cushion the supporting seat through the blotter, and be equipped with anti-skidding line on the blotter, can increase frictional force for the position of supporting seat is more stable, has further improved the equilibrium of supporting seat.
Further, the inner wall of the top of the installation cavity is fixedly connected with a telescopic rod, and the bottom end of the telescopic rod is fixedly connected with the top of the toothed plate. Has the advantages that: the telescopic link can support the pinion rack, and can make the pinion rack can stabilize the removal.
Furthermore, the bottom symmetry fixedly connected with two gag lever posts of carousel, the bottom of two gag lever posts all is connected with the bottom inner wall of circular recess rotation. Has the advantages that: the limiting rod can rotate in the circular groove, so that the rotating friction force can be reduced, the rotating disc and the bridge main body can rotate more stably, the bridge main body is not prone to tilting, balance can be kept, and construction is facilitated.
Furthermore, the top of the rotary table is symmetrically and fixedly connected with slide rails, and the bottoms of the two movable plates are respectively in sliding connection with the two slide rails. Has the advantages that: the slide rail can make the movable plate can steady movement, can not take place the offset.
Furthermore, one side fixedly connected with slipmat of clamp plate, the one side that two slipmats are close to each other closely laminates with the both sides of bridge main part respectively. Has the advantages that: the non-slip mat can increase frictional force for the clamp plate can be inseparabler with the laminating of bridge main part.
Further, the installation cavity is internally and fixedly connected with a limiting plate, the other side of the screw nut is provided with a roller, and the roller is in rolling connection with one side of the limiting plate. Has the advantages that: through the gyro wheel roll on the limiting plate, can carry on spacingly to screw nut for the removal that screw nut can stabilize.
Further, ventilation holes are symmetrically formed in the two sides of the supporting seat and the two sides of the rotating seat, and filter screens are fixedly connected in the ventilation holes. Has the advantages that: the ventilation hole can make installation cavity and fixed cavity keep ventilating, the driving motor and the heat dissipation of push rod motor of being convenient for, and the filter screen can the separation external dust, prevents to cause the pollution to installation cavity and fixed cavity.
Furthermore, the inner walls of the two sides of the fixed cavity are provided with sliding grooves, and the two sides of the lifting plate respectively extend into the two sliding grooves and are in sliding connection with the inner wall of one side, far away from the sliding grooves. Has the advantages that: the sliding groove can enable the lifting plate to move along the sliding groove more smoothly.
The invention has the beneficial effects that:
1. according to the balancing device convenient for bridge horizontal rotation construction, the movable plate can drive the fixed columns to move by rotating the threaded shafts inwards, the two fixed columns can enable the two clamping plates to approach each other, and one sides of the two anti-slip pads approaching each other are respectively attached to the two sides of the bridge main body, so that the two fixed columns and the two clamping plates, the bridge main body and the rotating disc can form a triangular shape, the stability can be improved, the bridge main body can be kept balanced during rotation construction, and inclination cannot occur.
2. According to the balancing device convenient for horizontal rotation construction of the bridge, disclosed by the invention, the toothed plate can drive the screw nut to move through the driving motor, so that the ball screw can drive the rotary table and the bridge main body to rotate, and the limiting rod is arranged and can rotate in the circular groove, so that the rotating friction force can be reduced, the rotary table and the bridge main body can rotate more stably, the bridge main body is not easy to incline, the balance can be kept, and the construction is convenient.
3. According to the balancing device convenient for horizontal rotation construction of the bridge, disclosed by the invention, the bridge main body can be lifted through the push rod motor, the bridge main body can be conveniently moved to a proper position, the construction is convenient, meanwhile, the ventilation holes are formed, the ventilation of the installation cavity and the fixed cavity can be kept, the heat dissipation of the driving motor and the push rod motor is convenient, the filter screen can block external dust, the pollution to the installation cavity and the fixed cavity is prevented, the supporting seat can be buffered through the buffer cushion, and the anti-skid grains are arranged on the buffer cushion, so that the friction force can be increased, the position of the supporting seat is more stable, and the balance is further improved.
4. The balancing device convenient for horizontal rotation construction of the bridge is reasonable in structure, stability can be improved by enabling the two fixing columns and the two clamping plates to form a triangular shape with the bridge main body and the rotary table, so that the bridge main body can keep balance and cannot incline during rotation construction, the bridge main body can be convenient to rotate through the rotary table, the rotation is stable, the inclination cannot occur, the balance is improved, and rotation construction is convenient.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a balancing device for facilitating horizontal rotation construction of a bridge according to the present invention;
FIG. 2 is a sectional view of a rotary seat in the balancing apparatus for facilitating horizontal rotary construction of a bridge according to the present invention;
FIG. 3 is a cross-sectional view of a support seat of the balancing apparatus for facilitating horizontal swivel construction of a bridge according to the present invention;
FIG. 4 is a schematic view of the installation of a filter screen in the balancing device for facilitating the horizontal rotation construction of a bridge according to the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 1 according to the present invention.
Reference numerals: the bridge comprises a supporting seat 1, a rotating seat 2, a bridge body 3, an installation chamber 4, a driving motor 5, a rotating shaft 6, a gear 7, a ball screw 8, a screw nut 9, a toothed plate 10, a rotary disc 11, a threaded plate 12, a threaded shaft 13, a movable plate 14, a fixed column 15, a clamping plate 16, a fixed chamber 17, a push rod motor 18, a lifting plate 19, a connecting column 20, a sliding chute 21, a vent hole 22, a filter screen 23, a telescopic rod 24, a limiting plate 25, a roller 26, a circular groove 27, a limiting rod 28, supporting legs 29, a cushion pad 30, a sliding rail 31 and a non-slip mat 32.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1-5, a balancing device for facilitating horizontal swivel construction of a bridge comprises a supporting seat 1 and a bridge main body 3, wherein a lifting assembly is arranged on the supporting seat 1, the lifting assembly is in transmission connection with a rotating seat 2, the rotating seat 2 is provided with an installation chamber 4, a driving motor 5 is fixedly connected on the inner wall of one side of the installation chamber 4, an output shaft of the driving motor 5 is fixedly connected with a rotating shaft 6, one end of the rotating shaft 6 is fixedly sleeved with a gear 7, the inner wall of the bottom of the installation chamber 4 is rotatably connected with a ball screw 8, the ball screw 8 is in threaded connection with a screw nut 9, one side of the screw nut 9 is fixedly connected with a toothed plate 10, the toothed plate 10 is meshed with the gear 7, the top of the rotating seat 2 is provided with a circular groove 27, the top end of the ball screw 8 penetrates through the circular groove 27 and is fixedly connected with a rotating disc 11, the top of the rotating, two thread plates 12 of the top symmetry fixedly connected with of carousel 11, equal threaded connection has threaded shaft 13 on two thread plates 12, the one end that two threaded shaft 13 are close to each other all rotates and is connected with movable plate 14, the equal fixedly connected with fixed column 15 in top of two movable plates 14, the equal fixedly connected with clamp plate 16 of one end of two fixed columns 15, one side that two clamp plate 16 are close to each other closely laminates with the both sides of bridge main part 3 respectively, form a triangle-shaped through making two fixed columns 15 and two clamp plate 16 and bridge main part 3 and carousel 11, can increase the stability, make bridge main part 3 when the construction of turning, can keep balance, can not take place the slope, and make things convenient for bridge main part 3 to rotate through carousel 11, and the rotational stability, can not take place the slope, the equilibrium has improved, the construction of turning of being convenient for.
In this embodiment, lifting unit is including establishing fixed cavity 17 on supporting seat 1, fixedly connected with push rod motor 18 on fixed cavity 17's the bottom inner wall, fixedly connected with lifter plate 19 on push rod motor 18's the output shaft, two spliced poles 20 of the top symmetry fixedly connected with of lifter plate 19, the bottom of rotating seat 2 extend to in fixed cavity 17 and with two spliced poles 20's top fixed connection, push rod motor 18 can make bridge main part 3 go up and down, conveniently remove to suitable position, be convenient for be under construction.
In this embodiment, equal fixedly connected with landing leg 29 in the bottom four corners position of supporting seat 1, the equal fixedly connected with blotter 30 in bottom of four landing legs 29, the bottom of blotter 30 is equipped with anti-skidding line, can cushion supporting seat 1 through blotter 30, and is equipped with anti-skidding line on the blotter 30, can increase frictional force for the position of supporting seat 1 is more stable, further improves the equilibrium.
In this embodiment, fixedly connected with telescopic link 24 on the top inner wall of installation cavity 4, the bottom of telescopic link 24 and the top fixed connection of pinion rack 10, telescopic link 24 can support pinion rack 10, and can make pinion rack 10 can stabilize the removal.
In this embodiment, two gag lever posts 28 of the bottom symmetry fixedly connected with of carousel 11, the bottom of two gag lever posts 28 all rotates with the bottom inner wall of circular recess 27 to be connected, and gag lever post 28 can both reduce pivoted frictional force at the internal rotation of circular recess 27, can make carousel 11 and bridge main part 3 rotate more stably again for bridge main part 3 is difficult to take place the slope, can keep balance, convenient construction.
In this embodiment, the top of the turntable 11 is symmetrically and fixedly connected with the slide rails 31, the bottoms of the two moving plates 14 are respectively connected with the two slide rails 31 in a sliding manner, and the slide rails 31 can enable the moving plates 14 to move stably without position deviation.
In this embodiment, one side fixedly connected with slipmat 32 of pinch-off plate 16, one side that two slipmats 32 are close to each other closely laminates with the both sides of bridge main part 3 respectively, and slipmat 32 can increase frictional force for pinch-off plate 16 can be inseparabler with the laminating of bridge main part 3.
In this embodiment, fixedly connected with limiting plate 25 in installation cavity 4, screw nut 9's opposite side is equipped with gyro wheel 26, and gyro wheel 26 and one side roll connection of limiting plate 25 roll on limiting plate 25 through gyro wheel 26, can carry on spacingly to screw nut 9 for the removal that screw nut 9 can stabilize.
In this embodiment, ventilation hole 22 has been seted up to the both sides of supporting seat 1 and the equal symmetry in both sides of rotating seat 2, fixedly connected with filter screen 23 in ventilation hole 22, and ventilation hole 22 can make installation cavity 4 and fixed cavity 17 keep ventilating, and the driving motor 5 and the heat dissipation of push rod motor 18 of being convenient for, filter screen 23 can the external dust of separation, prevents that the dust from causing the pollution to installation cavity 4 and fixed cavity 17.
In this embodiment, all seted up spout 21 on the both sides inner wall of fixed cavity 17, the both sides of lifter plate 19 extend respectively to in two spout 21 and with the one side inner wall sliding connection that spout 21 kept away from each other, spout 21 can make lifter plate 19 can more smooth-going removal.
The using method of the balancing device convenient for bridge horizontal rotation construction includes that the bottom of a bridge main body 3 extends into a positioning groove, then two threaded shafts 13 rotate inwards, the two movable plates 14 can be made to approach each other by the two threaded shafts 13, the two movable plates 14 can be made to approach each other by the two fixed columns 15, the two clamping plates 16 can be made to approach each other by the two movable plates 14, and therefore the two anti-skid pads 23 can be made to be tightly attached to the two sides of the bridge main body 3, the two fixed columns 15 and the two clamping plates 16 can be made to form a triangular shape with the bridge main body 3 and the turntable 11, stability can be improved, and the bridge main body 3 can be kept balanced and cannot incline during rotation construction.
Then the power is switched on, the push rod motor 18 is started, the output shaft of the push rod motor 18 can enable the lifting plate 19 to move, the lifting plate 19 can enable the rotating seat 2 to move through the two connecting columns 20, so that the bridge main body 3 can be moved to a proper position, the rotating body is convenient, and after the bridge main body is moved to the proper position, the push rod motor 18 is switched off. Restart driving motor 5, driving motor 5's output shaft can make pivot 6 rotate, pivot 6 can make gear 7 drive pinion rack 10 remove, pinion rack 10 can make lead screw nut 9 remove, because lead screw nut 9 and ball 8 are threaded connection and the two transmission has reversibility, so lead screw nut 9 removes and can make ball 8 rotate, ball 8 can make carousel 11 drive bridge main part 3 rotate, owing to set up gag lever post 28, gag lever post 28 can rotate at circular slot 27, both can reduce pivoted frictional force, can make carousel 11 and bridge main part 3 rotate more stably again, make bridge main part 3 be difficult to take place the slope, can keep balance, convenient construction.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a balancing unit convenient to construction of turning of bridge level, includes supporting seat (1) and bridge main part (3), its characterized in that, be equipped with lifting unit on supporting seat (1), lifting unit goes up the transmission and is connected with and rotates seat (2), be equipped with installation cavity (4) on rotating seat (2), fixedly connected with driving motor (5) on the inner wall of one side of installation cavity (4), fixedly connected with pivot (6) on the output shaft of driving motor (5), the fixed cover of one end of pivot (6) is equipped with gear (7), it is connected with ball (8) to rotate on the bottom inner wall of installation cavity (4), threaded connection has lead screw nut (9) on ball (8), one side fixedly connected with pinion rack (10) of lead screw nut (9), pinion rack (10) mesh with gear (7), the top of rotating seat (2) is equipped with circular slot (27), the top of ball (8) runs through circular slot (27) and fixedly connected with carousel (11), the constant head tank has been seted up at the top of carousel (11), the bottom of bridge main part (3) extends to in the constant head tank and clamps mutually with the constant head tank, the top symmetry fixedly connected with two thread plates (12) of carousel (11), equal threaded connection has screw shaft (13) on two thread plates (12), the one end that two screw shaft (13) are close to each other all rotates and is connected with movable plate (14), the equal fixedly connected with fixed column (15) in top of two movable plate (14), the equal fixedly connected with clamp plate (16) of one end of two fixed columns (15), the one side that two clamp plate (16) are close to each other closely laminates with the both sides of bridge main part (3) respectively.
2. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 1, wherein the lifting assembly comprises a fixed cavity (17) arranged on the supporting base (1), a push rod motor (18) is fixedly connected to the inner wall of the bottom of the fixed cavity (17), a lifting plate (19) is fixedly connected to the output shaft of the push rod motor (18), two connecting columns (20) are symmetrically and fixedly connected to the top of the lifting plate (19), and the bottom of the rotating base (2) extends into the fixed cavity (17) and is fixedly connected to the top ends of the two connecting columns (20).
3. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 1, wherein the supporting base (1) is fixedly connected with legs (29) at four corners of the bottom thereof, the bottom ends of the four legs (29) are fixedly connected with cushions (30), and the bottoms of the cushions (30) are provided with anti-skid threads.
4. The balancing device for facilitating horizontal swivel construction of bridges according to claim 1, wherein the top inner wall of the installation chamber (4) is fixedly connected with a telescopic rod (24), and the bottom end of the telescopic rod (24) is fixedly connected with the top of the toothed plate (10).
5. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 1, wherein the bottom of the rotary plate (11) is symmetrically and fixedly connected with two limiting rods (28), and the bottom ends of the two limiting rods (28) are rotatably connected with the bottom inner wall of the circular groove (27).
6. The balancing device for facilitating the horizontal rotation construction of bridges according to claim 1, wherein the top of the rotary table (11) is symmetrically and fixedly connected with sliding rails (31), and the bottoms of the two moving plates (14) are respectively connected with the two sliding rails (31) in a sliding manner.
7. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 1, wherein the clamping plate (16) is fixedly connected with anti-slip pads (32) at one side, and the sides of the two anti-slip pads (32) close to each other are respectively and tightly attached to the two sides of the bridge main body (3).
8. The balancing device for facilitating the horizontal swivel construction of bridges according to claim 1, wherein a limiting plate (25) is fixedly connected in the installation chamber (4), and a roller (26) is arranged on the other side of the lead screw nut (9), and the roller (26) is in rolling connection with one side of the limiting plate (25).
9. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 1, wherein the two sides of the supporting seat (1) and the two sides of the rotating seat (2) are symmetrically provided with vent holes (22), and a filter screen (23) is fixedly connected in the vent holes (22).
10. The balancing device for facilitating the horizontal rotation construction of the bridge according to claim 2, wherein the fixed chamber (17) is provided with sliding grooves (21) on the inner walls of both sides thereof, and both sides of the lifting plate (19) extend into the two sliding grooves (21) respectively and are slidably connected with the inner wall of the side of the lifting plate away from the sliding grooves (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850624.8A CN112049025A (en) | 2020-08-21 | 2020-08-21 | Balancing unit convenient to bridge level is turned construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850624.8A CN112049025A (en) | 2020-08-21 | 2020-08-21 | Balancing unit convenient to bridge level is turned construction |
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| CN112049025A true CN112049025A (en) | 2020-12-08 |
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| CN202010850624.8A Pending CN112049025A (en) | 2020-08-21 | 2020-08-21 | Balancing unit convenient to bridge level is turned construction |
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| CN113735009A (en) * | 2021-09-08 | 2021-12-03 | 武汉船舶职业技术学院 | Bridge machine for lifting prefabricated part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735009A (en) * | 2021-09-08 | 2021-12-03 | 武汉船舶职业技术学院 | Bridge machine for lifting prefabricated part |
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Application publication date: 20201208 |
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