Bridge supporting bracket for bridge construction

Abstract

The bridge supporting bracket for bridge construction comprises a base, the base is detachably installed at the upper end of a bridge pier, a first lifting table is arranged at the upper end of the base, a mounting table is arranged at the upper end of the first lifting table, two second lifting tables are arranged in the mounting table, and a first moving assembly facing left and right is arranged at the upper end of one second lifting table; the upper end of the other second lifting table is provided with a second moving assembly facing forwards and backwards. The precast beam in the falling beam is placed on the first moving assembly and the second moving assembly, the first moving assembly and the second moving assembly alternately support the precast beam through the second lifting table, the precast beam is displaced through the driving wheels, the precast beam is moved on the horizontal plane, the position of the precast beam is adjusted more quickly, and the mounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a bridge support bracket used for bridge construction. Background Art

[0002] In modern bridge construction, precast beam technology is widely used due to its advantages such as high efficiency, economy and controllable quality. Precast beams refer to bridge components that are transported to the construction site for installation after being prefabricated in the factory. This process involves multiple steps such as manufacturing, transportation, hoisting and positioning of precast beams. Among them, the positioning of precast beams is one of the key links to ensure the stability and accuracy of the bridge structure. In order to ensure that the precast beams can be installed accurately, various support brackets are often used to assist in positioning during construction. These support brackets usually have the function of adjustable height and can withstand the weight of the precast beams.

[0003] Traditional support brackets are mostly adjusted manually, using jacks or other similar tools to adjust the height. Although this method meets the construction needs to a certain extent, there are still some problems in actual operation. It is inconvenient to adjust the position of the prefabricated beam on the horizontal plane, and it needs to be moved by a bridge-building machine. In order to reduce the shaking of the prefabricated beam, the bridge-building machine can only move slowly, resulting in slow installation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a bridge support bracket for bridge construction, which can correct the position of the prefabricated beam by gently placing the prefabricated beam being hoisted on a moving component and then correct the position of the prefabricated beam by alternating movement of the driving wheels, thereby accelerating the installation efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A bridge support bracket for bridge construction, comprising a base, the base being detachably mounted on the upper end of a bridge pier, a first lifting platform being provided at the upper end of the base, a mounting platform being provided at the upper end of the first lifting platform, two second lifting platforms being provided inside the mounting platform, a first moving assembly facing left and right being provided at the upper end of one of the second lifting platforms, and a second moving assembly facing front and back being provided at the upper end of the other second lifting platform;

[0007] The first moving assembly and the second moving assembly both include a support base, a driving wheel, a rotating shaft, a transmission assembly and a rotating motor. The lower end of the support base is connected to the second lifting platform, and a plurality of mounting grooves are evenly opened at the upper end of the support base. The driving wheel is installed in the mounting groove, and part of the driving wheel protrudes from the mounting groove. There are multiple rotating shafts and they are arranged one by one along the axis of the driving wheel. The rotating shaft is rotatably matched with the support plate, and the transmission assembly connects each rotating shaft to the rotating motor, and the rotating motor drives each driving wheel to rotate simultaneously.

[0008] By adopting the above technical solution, the prefabricated beams in the falling beams are gently placed on the first movable assembly and the second movable assembly. The first movable assembly and the second movable assembly are alternately supported by the second lifting platform to support the prefabricated beams, and the prefabricated beams are displaced by the driving wheels.

[0009] The present invention is further configured as follows: a transmission cavity is opened on one side of the support seat, and the transmission assembly includes a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a main shaft and a connecting rod, the first bevel gear is arranged in the transmission cavity and is installed one by one on the rotating shaft, the main shaft is installed in the transmission cavity and is perpendicular to the rotating shaft, both ends of the main shaft are rotatably connected to the support seat, the second bevel gear is installed on the main shaft and corresponds one by one to the rotating shaft, the first bevel gear and the second bevel gear are meshed with each other one by one, the rotating motor is arranged at the lower end of the support plate, the output shaft of the rotating motor is connected to the connecting rod, and the connecting rod is inserted into the transmission cavity at one end away from the rotating motor, the third bevel gear is installed on the main shaft, the fourth bevel gear is installed on the connecting rod, and the third bevel gear and the fourth bevel gear are meshed with each other.

[0010] By adopting the above technical solution, the third bevel gear and the fourth bevel gear are driven to rotate by the rotating motor, and each driving wheel on the rotating shaft is driven to rotate in the same direction by the first bevel gear and the second bevel gear. Since the weight of the prefabricated beam is mainly borne by the bridge erection machine, and the first moving assembly and the second moving assembly only play the role of displacement, excessive power is not required.

[0011] The present invention is further configured as follows: a plurality of rolling teeth are evenly arranged on the circumference of the driving wheel.

[0012] By adopting the above technical solution, it is convenient to drive the prefabricated beam.

[0013] The present invention is further configured as follows: the first lifting platform includes a first outer cylinder, a first inner cylinder and a first hydraulic rod, the upper end of the first outer cylinder is in an open state, the lower end of the first inner cylinder is in an open state, the first inner cylinder is inserted into the first outer cylinder, the first inner cylinder and the first outer cylinder are slidably matched, the first hydraulic rod is vertically arranged in the first outer cylinder, the lower end of the first hydraulic rod is connected to the bottom of the first outer cylinder, and the upper end of the first hydraulic rod is connected to the top of the first inner cylinder.

[0014] By adopting the above technical solution, the lifting is carried out by the first hydraulic rod, and the lowering needs to be carried out with the help of the first hydraulic rod in the later stage, and a high-power hydraulic rod needs to be used.

[0015] The present invention is further configured as follows: two grooves are provided at the upper end of the mounting platform, the second lifting platform includes a second inner cylinder, a pressure sensor and a second hydraulic rod, the lower end of the second inner cylinder is in an open state, the second inner cylinder is inserted into the groove, the second inner cylinder and the groove are slidably matched, the driving wheel can be received in the groove, the second hydraulic rod is vertically arranged in the groove, the lower end of the second hydraulic rod is connected to the bottom of the groove, and the upper end of the second hydraulic rod is connected to the top of the second inner cylinder through the pressure sensor.

[0016] By adopting the above technical solution, the second lifting platform is lifted and lowered by the second hydraulic rod, and the second inner cylinder must ensure that the driving wheel is completely stored in the groove when not in use, so as to facilitate the use of the first lifting platform to complete the up and down lifting.

[0017] The present invention is further configured as follows: a support arm is connected to the base, and the support arm includes a slide plate, an adjusting knob, a telescopic rod and a third hydraulic rod; a slide groove extending left and right is opened on the base, and the slide plate is inserted in the slide groove, and the slide plate is slidably matched with the slide groove; the adjusting knob is installed on the base and used in conjunction with the slide plate; the telescopic rod is connected to one end of the slide plate, and the telescopic rod and the slide plate are on the same horizontal plane and perpendicular to each other; the other end of the telescopic rod is rotatably connected to the third hydraulic rod; the third hydraulic rod is vertically arranged; and the upper end of the third hydraulic rod is provided with a moving mechanism installed on the bridge erecting machine.

[0018] By adopting the above technical solution and connecting with the moving mechanism on the bridge erecting machine, it is convenient to move the position of the base and place the base on the bridge pier. The base can also be pressed on the bridge pier by pressing down the third hydraulic rod.

[0019] The present invention is further configured as follows: a fixing knob is provided on the telescopic rod.

[0020] By adopting the above technical solution, the fixing knob is used to fix the length of the telescopic rod.

[0021] The present invention is further configured as follows: an anti-slip layer is provided at the lower end of the base, an adsorption cavity is opened in the middle of the protective pad, the adsorption cavity is connected to a vacuum pump, and a sealing ring is provided on the peripheral side of the lower end of the adsorption cavity.

[0022] By adopting the above technical solution, the pressure in the adsorption chamber is sucked out by a vacuum pump, so that the base is tightly adsorbed on the bridge pier to form a fixed position.

[0023] The present invention is further configured as follows: a controller is electrically connected to the base, and the rotating motor, the vacuum pump, the bridge erection machine, the first lifting platform and the second lifting platform are all electrically connected to the controller.

[0024] By adopting the above technical solution, operations are performed through a controller, making it convenient for workers on the pier to perform real-time control.

[0025] In summary, the present invention has the following beneficial effects:

[0026] Firstly, the present invention places the prefabricated beams in the falling beams on the first movable assembly and the second movable assembly, and the first movable assembly and the second movable assembly are alternately supported by the second lifting platform to support the prefabricated beams, and the prefabricated beams are displaced by driving wheels to realize the movement of the prefabricated beams on the horizontal plane, so as to adjust the position of the prefabricated beams more quickly and improve the installation efficiency.

[0027] Secondly, the driving wheel in the present invention can be stored in the installation groove. After completing the correction on the horizontal plane, the second lifting platform is lowered and retracted into the groove, and supported by the upper end of the installation platform. The first lifting platform is used to complete the final installation work, which can speed up the beam dropping speed and reduce the shaking of the prefabricated beam.

[0028] Thirdly, the base in the present invention is installed on the bridge erection machine through a support arm and a moving mechanism, and is combined with the bridge erection machine to move the position of the base support, which also facilitates the movement of the device with the bridge erection machine. The base is pressed and fixed on the bridge pier through the third hydraulic rod, and then fixed with the help of adsorption of a vacuum pump, which greatly simplifies the fixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a cross-sectional view of the present invention;

[0031] Figure 3 is a cross-sectional view of the transmission cavity in the present invention;

[0032] Figure 4 It is a structural schematic diagram of the driving wheel in the present invention.

[0033] In the figure: 1, base; 2, first lifting platform; 21, first outer tube; 22, first inner tube; 23, first hydraulic rod; 3, mounting platform; 31, groove; 4, second lifting platform; 41, second inner tube; 42, pressure sensor; 43, second hydraulic rod; 5, first moving assembly; 6, second moving assembly; 61, support seat; 62, driving wheel; 621, rolling gear; 63, rotating shaft; 64, transmission assembly; 641, first bevel gear; 642, second bevel gear; 643, third bevel gear; 644, fourth bevel gear; 645, main shaft; 646, connecting rod; 65, rotating motor; 66, mounting groove; 67, transmission chamber; 7, supporting arm; 71, slide plate; 72, adjusting knob; 73, telescopic rod; 74, third hydraulic rod; 75, fixing knob; 8, anti-skid layer; 81, adsorption chamber; 82, vacuum pump; 83, sealing ring; 9, controller. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "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, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment, a bridge support bracket for bridge construction, such as Figures 1 to 4As shown, it includes a base 1, which can be detachably mounted on the upper end of the pier, and a first lifting platform 2 is provided on the upper end of the base 1 for realizing up and down lifting, and a mounting platform 3 is provided on the upper end of the first lifting platform 2, and two second lifting platforms 4 are provided in the mounting platform 3, wherein a first moving assembly 5 facing left and right is provided on the upper end of one of the second lifting platforms 4, and a second moving assembly 6 facing front and back is provided on the upper end of the other second lifting platform 4. The first moving assembly 5 and the second moving assembly 6 are lifted and lowered by the two second lifting platforms 4, and the first moving assembly 5 and the second moving assembly 6 are used alternately to realize the displacement of the prefabricated beam on the plane.

[0039] Wherein the first mobile assembly and the second mobile assembly 6 both include a support seat 61, a driving wheel 62, a rotating shaft 63, a transmission assembly 64 and a rotating motor 65, the lower end of the support seat 61 is connected to the second lifting platform 4, the upper end of the support seat 61 is evenly provided with a plurality of mounting grooves 66, the driving wheel 62 is installed in the mounting groove 66, the part of the driving wheel 62 protrudes from the mounting groove 66, and the peripheral side of the driving wheel 62 is evenly provided with a plurality of rolling teeth 621, which increases the friction force and facilitates the driving of the precast beam. The rotating shaft 63 is provided with a plurality of and is arranged along the axis of the driving wheel 62 one by one, the rotating shaft 63 is rotated with the support plate, the transmission assembly 64 connects each rotating shaft 63 with the rotating motor 65, and the rotating motor 65 drives each driving wheel 62 to rotate simultaneously. The first mobile assembly and the second mobile assembly 6 both provide power through the rotating motor 65, and the power is transmitted to the rotating shaft 63 through the transmission assembly 64, and the driving wheel 62 on the rotating shaft 63 rotates accordingly, and the driving wheel 62 is supported at the lower end of the precast beam, and drives the precast beam to move when rotating. During this process, the prefabricated beam is still suspended by the bridge-building machine. The first movable assembly 5 and the second movable assembly 6 mainly play the role of displacement and avoiding shaking. Therefore, they do not need to bear excessive pressure, and the power of the rotating motor 65 does not need to be too much.

[0040] A transmission cavity 67 is provided on one side of the support seat 61. The transmission assembly 64 includes a first bevel gear 641, a second bevel gear 642, a third bevel gear 643, a fourth bevel gear 644, a main shaft 645 and a connecting rod 646. The first bevel gear 641 is provided in the transmission cavity 67 and is mounted one by one on the rotating shaft 63. The main shaft 645 is mounted in the transmission cavity 67 and is perpendicular to the rotating shaft 63. Both ends of the main shaft 645 are rotatably connected to the support seat 61. The second bevel gear 642 is mounted on the main shaft 645 and corresponding to the rotating shaft 63 one by one, the first bevel gear 641 and the second bevel gear 642 mesh with each other one by one, the rotating motor 65 is arranged at the lower end of the supporting plate, the output shaft of the rotating motor 65 is connected to the connecting rod 646, the end of the connecting rod 646 away from the rotating motor 65 is inserted into the transmission cavity 67, the third bevel gear 643 is mounted on the main shaft 645, the fourth bevel gear 644 is mounted on the connecting rod 646, and the third bevel gear 643 and the fourth bevel gear 644 mesh with each other. When in use, the connecting rod 646 is driven to rotate by the rotating motor 65, the fourth bevel gear 644 at the upper end of the connecting rod 646 drives the third bevel gear 643 to rotate, the main shaft 645 and the second bevel gear 642 rotate accordingly, and the first bevel gear 641 and the rotating shaft 63 are driven to rotate, so as to complete the same direction rotation of the driving wheel 62, of course, it can also be other transmission components 64.

[0041] The first lifting platform 2 includes a first outer cylinder 21, a first inner cylinder 22 and a first hydraulic rod 23. The upper end of the first outer cylinder 21 is in an open state, the lower end of the first inner cylinder 22 is in an open state, the first inner cylinder 22 is inserted into the first outer cylinder 21, the first inner cylinder 22 and the first outer cylinder 21 are slidably matched, the first hydraulic rod 23 is vertically arranged in the first outer cylinder 21, the lower end of the first hydraulic rod 23 is connected to the bottom of the first outer cylinder 21, and the upper end of the first hydraulic rod 23 is connected to the top of the first inner cylinder 22. The first hydraulic rod 23 pushes the first inner cylinder 22 to slide up and down to achieve movement in the up and down directions. Of course, the first lifting platform 2 needs to adjust the up and down directions of the precast beam, and a high-power hydraulic rod should be used.

[0042] Two grooves 31 are provided at the upper end of the mounting platform 3. The second lifting platform 4 includes a second inner cylinder 41, a pressure sensor 42 and a second hydraulic rod 43. The lower end of the second inner cylinder 41 is in an open state. The second inner cylinder 41 is inserted into the groove 31. The second inner cylinder 41 and the groove 31 are slidably matched. The driving wheel 62 can be received in the groove 31. The second hydraulic rod 43 is vertically arranged in the groove 31. The lower end of the second hydraulic rod 43 is connected to the bottom of the groove 31. The upper end of the second hydraulic rod 43 is connected to the top of the second inner cylinder 41 through the pressure sensor 42. In addition to facilitating the lifting and lowering of the second inner cylinder 41, the setting of the groove 31 also requires the storage of the first moving assembly 5 and the second moving assembly 6. When the first moving assembly 5 and the second moving assembly 6 have completed their work, the first moving assembly 5 and the second moving assembly 6 need to be stored in the groove 31 to facilitate the operation of the first lifting platform 2.

[0043] The base 1 is connected with a support arm 7, which includes a slide plate 71, an adjustment knob 72, a telescopic rod 73 and a third hydraulic rod 74. The base 1 is provided with a slide groove that runs through the left and right sides. The slide plate 71 is inserted into the slide groove to facilitate the adjustment of the position of the base 1 on the bridge pier. The slide plate 71 is slidably matched with the slide groove. The adjustment knob 72 is installed on the base 1 and used in conjunction with the slide plate 71. The telescopic rod 73 is connected to one end of the slide plate 71. The telescopic rod 73 and the slide plate 71 are on the same horizontal plane and are perpendicular to each other. The other end of the telescopic rod 73 is connected and rotatably connected to the third hydraulic rod 74, which is convenient for rotating the base 1 onto the bridge pier and also convenient for removing the base 1 from the bridge pier. If manual rotation is inconvenient, an automatic rotation power mechanism can be added. A fixed knob 75 is provided on the telescopic rod 73 to facilitate the adjustment of the position of the base 1 on the bridge pier. The third hydraulic rod 74 is vertically arranged, and the upper end of the third hydraulic rod 74 is provided with a moving mechanism installed on the bridge erecting machine. The base 1 is connected to the bridge erecting machine through the support arm 7 and the moving mechanism. The bridge erecting machine and the moving mechanism are both existing technologies, so they are not described in detail and are not shown in the attached drawings. During use, it is necessary to ensure that both piers have this device. The best solution is to set this device on both sides for better balance. After the device is connected to the bridge erecting machine, it can be moved with the bridge erecting machine, and then the support position can be adjusted. In addition to lifting the base 1, the third hydraulic rod 74 also presses the base 1 on the pier to fix it, which is convenient for fixing.

[0044] In order to further ensure the firmness of the fixation, an anti-slip layer 8 is provided at the lower end of the base 1, an adsorption chamber 81 is opened in the middle of the protective pad, the adsorption chamber 81 is connected to a vacuum pump 82, and a sealing ring 83 is provided on the peripheral side of the lower end of the adsorption chamber 81. Fixation is performed by vacuum adsorption, which is simple and convenient.

[0045] The base 1 is electrically connected to a controller 9, and the rotating motor 65, the vacuum pump 82, the bridge erecting machine, the first lifting platform 2 and the second lifting platform 4 are all electrically connected to the controller 9. The controller 9 is convenient for the workers on the bridge pier to operate, and they can intuitively see the falling situation of the prefabricated beams, which is convenient for quick and timely adjustments. The controller 9 controls the coordinated work of various electronic components. Of course, the controller 9 is electrically connected to the bridge erecting machine, which is convenient for the bridge erecting machine to make quick adjustments during the adjustment of the prefabricated beams, thereby speeding up the erection efficiency.

[0046] Instructions for use: Before the bridge erector drops the beam, the third hydraulic rod 74 is extended, the telescopic rod 73 is rotated, the base 1 is inserted on the bridge pier, as close to the support as possible, and then the beam is dropped. When dropping the beam, the first lifting platform 2 and the second lifting platform 4 are raised to the highest point, and when the bottom of the prefabricated beam contacts the first moving component 5 and the second moving component 6, it is detected by the pressure sensor 42, and the second moving component 6 and the bridge erector are lowered together. At this time, the beam dropping speed can be accelerated without excessive shaking. When the second lifting platform 4 is fully retracted, the prefabricated beam is supported on the mounting platform 3. At the same time, the first lifting platform 2 is adjusted to level the prefabricated beam, and the bridge-building machine also makes corresponding adjustments. After leveling, the first lifting platform 2 descends, and one of the second lifting platforms 4 rises to adjust the prefabricated beam in the left and right directions of the horizontal plane. After adjusting one direction, the other second lifting platform 4 is raised to adjust the prefabricated beam in the front and back directions of the horizontal plane. After the adjustment is completed, the first lifting platform 2 rises, and the second lifting platform 4 shrinks to support the prefabricated beam to complete the final installation. After the installation is completed, take out the base 1, and carry out the next round of installation work with the bridge-building machine.

[0047] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A bridge support bracket for bridge construction, comprising a base (1), characterized in that: The base (1) is detachably mounted on the upper end of the pier, the upper end of the base (1) is provided with a first lifting platform (2), the upper end of the first lifting platform (2) is provided with a mounting platform (3), two second lifting platforms (4) are provided inside the mounting platform (3), the upper end of one of the second lifting platforms (4) is provided with a left-right oriented first moving component (5), and the upper end of the other second lifting platform (4) is provided with a front-back oriented second moving component (6); The first moving assembly and the second moving assembly (6) both comprise a support seat (61), a driving wheel (62), a rotating shaft (63), a transmission assembly (64) and a rotating motor (65); the lower end of the support seat (61) is connected to the second lifting platform (4); the upper end of the support seat (61) is evenly provided with a plurality of mounting grooves (66); the driving wheel (62) is mounted in the mounting grooves (66); a portion of the driving wheel (62) protrudes from the mounting grooves (66); a plurality of rotating shafts (63) are provided and are arranged one by one along the axis of the driving wheel (62); the rotating shafts (63) are rotatably matched with the support plate; the transmission assembly (64) connects each rotating shaft (63) with the rotating motor (65); and the rotating motor (65) drives each driving wheel (62) to rotate simultaneously.

2. A bridge support bracket for bridge construction according to claim 1, characterized in that: A transmission cavity (67) is provided on one side of the support seat (61); the transmission assembly (64) comprises a first bevel gear (641), a second bevel gear (642), a third bevel gear (643), a fourth bevel gear (644), a main shaft (645) and a connecting rod (646); the first bevel gears (641) are provided in the transmission cavity (67) and are mounted one by one on the rotating shaft (63); the main shaft (645) is mounted in the transmission cavity (67) and is perpendicular to the rotating shaft (63); both ends of the main shaft (645) are rotatably connected to the support seat (61); the second bevel gear (642) is mounted on the main shaft (645) and correspond one-to-one to the rotating shaft (63), the first bevel gear (641) and the second bevel gear (642) are meshed with each other, the rotating motor (65) is arranged at the lower end of the supporting plate, the output shaft of the rotating motor (65) is connected to the connecting rod (646), and the end of the connecting rod (646) away from the rotating motor (65) is inserted into the transmission cavity (67), the third bevel gear (643) is installed on the main shaft (645), the fourth bevel gear (644) is installed on the connecting rod (646), and the third bevel gear (643) and the fourth bevel gear (644) are meshed with each other.

3. A bridge support bracket for bridge construction according to claim 2, characterized in that: A plurality of rolling teeth (621) are evenly arranged on the circumference of the driving wheel (62).

4. A bridge support bracket for bridge construction according to claim 3, characterized in that: The first lifting platform (2) comprises a first outer cylinder (21), a first inner cylinder (22) and a first hydraulic rod (23); the upper end of the first outer cylinder (21) is in an open state, the lower end of the first inner cylinder (22) is in an open state, the first inner cylinder (22) is inserted into the first outer cylinder (21), the first inner cylinder (22) and the first outer cylinder (21) are slidably matched, the first hydraulic rod (23) is vertically arranged in the first outer cylinder (21), the lower end of the first hydraulic rod (23) is connected to the bottom of the first outer cylinder (21), and the upper end of the first hydraulic rod (23) is connected to the top of the first inner cylinder (22).

5. A bridge support bracket for bridge construction according to claim 4, characterized in that: The upper end of the mounting platform (3) is provided with two grooves (31); the second lifting platform (4) comprises a second inner cylinder (41), a pressure sensor (42) and a second hydraulic rod (43); the lower end of the second inner cylinder (41) is in an open state; the second inner cylinder (41) is inserted into the groove (31); the second inner cylinder (41) and the groove (31) are slidably matched; the driving wheel (62) can be received in the groove (31); the second hydraulic rod (43) is vertically arranged in the groove (31); the lower end of the second hydraulic rod (43) is connected to the bottom of the groove (31); and the upper end of the second hydraulic rod (43) is connected to the top of the second inner cylinder (41) through the pressure sensor (42).

6. A bridge support bracket for bridge construction according to claim 5, characterized in that: The base (1) is connected to a support arm (7), and the support arm (7) includes a slide plate (71), an adjusting knob (72), a telescopic rod (73) and a third hydraulic rod (74). The base (1) is provided with a slide groove extending left and right, and the slide plate (71) is inserted into the slide groove. The slide plate (71) and the slide groove are slidably matched. The adjusting knob (72) is installed on the base (1) and used in conjunction with the slide plate (71). The telescopic rod (73) is connected to one end of the slide plate (71). The telescopic rod (73) and the slide plate (71) are on the same horizontal plane and are perpendicular to each other. The other end of the telescopic rod (73) is rotatably connected to the third hydraulic rod (74). The third hydraulic rod (74) is vertically arranged. The upper end of the third hydraulic rod (74) is provided with a moving mechanism installed on the bridge erecting machine.

7. A bridge support bracket for bridge construction according to claim 6, characterized in that: The telescopic rod (73) is provided with a fixing knob (75).

8. A bridge support bracket for bridge construction according to claim 7, characterized in that: The lower end of the base (1) is provided with an anti-slip layer (8), the middle part of the protective pad is provided with an adsorption chamber (81), the adsorption chamber (81) is connected to a vacuum pump (82), and a sealing ring (83) is provided on the peripheral side of the lower end of the adsorption chamber (81).

9. A bridge support bracket for bridge construction according to claim 8, characterized in that: The base (1) is electrically connected to a controller (9), and the rotating motor (65), the vacuum pump (82), the bridge erection machine, the first lifting platform (2) and the second lifting platform (4) are all electrically connected to the controller (9).

Images