Pushing support structure for bridge construction

Abstract

The utility model discloses a pushing support structure for bridge construction, and belongs to the technical field of bridge construction. A pushing support structure for bridge construction comprises a horizontal support table and further comprises two sets of sliding bases which are arranged on the horizontal support table in a sliding mode, rotating bases are arranged on the two sets of sliding bases in a lifting mode respectively, adapter bases are rotationally arranged in the rotating bases, and bearing tables are fixedly arranged at the ends, away from the rotating bases, of the adapter bases; a driving part for driving the adapter to rotate is arranged on the rotating seat; the rotating seat is arranged on the top of the sliding seat in a lifting mode, the adapter seat is rotatably arranged on the top of the rotating seat, then the bearing table is fixedly arranged on the top of the adapter seat, the worm drives the worm gear to rotate, the adapter seat and the bearing table can be driven to rotate, a linear beam body can be supported, and the bearing table can be driven to rotate. And the curved beam body can be effectively supported, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a jacking support structure for bridge construction. Background Art

[0002] Bridges are an important part of the line. The jacking method is mostly used in the construction of continuous bridges with equal cross-sections of prestressed reinforced concrete and cable-stayed bridges. It refers to a construction method in which the beam is cast or assembled section by section at the bridge head, and jacks are used to push the beam longitudinally so that the beam is put into place through the temporary sliding bearing surfaces on the top of each pier. The jacking method requires the use of a jacking bracket to implement.

[0003] The jacking bracket in the prior art is usually only suitable for supporting a straight beam body, but is inconvenient for supporting a curved beam body. It has great limitations when used, which affects the use effect. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to support a curved beam in the prior art, and proposes a jacking support structure for bridge construction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A jacking support structure for bridge construction includes a horizontal support platform and also includes: two groups of sliding seats, both of which are slidably arranged on the horizontal support platform, wherein the two groups of sliding seats are respectively provided with rotating seats for lifting and lowering, and an adapter seat is rotatably arranged inside the rotating seat, and a bearing platform is fixedly arranged at one end of the adapter seat away from the rotating seat, and a driving part for driving the adapter seat to rotate is arranged on the rotating seat.

[0007] In order to facilitate the adjustment of the rotation angle of the support platform, preferably, the driving part includes a worm gear fixedly arranged on the adapter seat, wherein a rotation groove is opened in the rotating seat, the worm wheel is rotatably arranged in the rotation groove, a rotating shaft is rotatably arranged on the rotating seat, a worm is fixedly arranged on one end of the rotating shaft extending into the rotation groove, the worm is meshed with the worm wheel, and a handle is fixedly arranged on the rotating shaft.

[0008] In order to prevent the rotating shaft from rotating, further, a fastening screw is threadedly connected to the rotating seat, one end of the fastening screw abuts against the outer wall of the rotating shaft, and a knob is fixedly provided on the other end of the fastening screw.

[0009] In order to improve the limiting effect on the rotating shaft and avoid crushing the rotating shaft, further, a clamping pad is fixedly provided at one end of the fastening screw, and the clamping pad abuts against the outer wall of the rotating shaft.

[0010] Preferably, a slide is fixedly provided on the top of the horizontal support platform, two groups of sliding seats are symmetrically arranged on the slide, a bidirectional screw is rotatably provided inside the slide, the two groups of sliding seats are respectively threadedly connected to the two ends of the bidirectional screw, and a motor for driving the bidirectional screw to rotate is fixedly provided inside the horizontal support platform.

[0011] Furthermore, a first gear is fixedly provided at the output end of the motor, a second gear is fixedly provided on the bidirectional screw, and the first gear is meshed with the second gear.

[0012] Preferably, fixed plates are fixedly provided at both ends of the support platform, clamping plates are slidably provided on the two groups of fixed plates, and telescopic cylinders are fixedly provided on the fixed plates, the clamping plates are fixed at the output ends of the telescopic cylinders, and the end faces of the clamping plates away from the telescopic cylinders are arc surfaces.

[0013] Preferably, a jack is fixedly arranged on the sliding seat, the rotating seat is fixedly arranged at the output end of the jack, and guide rods are fixedly arranged at both ends of the rotating seat, and two groups of guide rods are slidably connected to the sliding seat.

[0014] Preferably, support columns are fixedly disposed at the bottom of the horizontal support platform, and the support columns are symmetrically arranged in multiple groups.

[0015] Furthermore, a plurality of groups of the support columns are provided with receiving grooves, a hydraulic cylinder is fixedly arranged in the receiving groove, and a walking wheel is arranged at the output end of the hydraulic cylinder.

[0016] Compared with the prior art, the utility model provides a jacking support structure for bridge construction, which has the following beneficial effects:

[0017] 1. The push support structure for bridge construction is constructed by lifting and disposing a rotating seat on the top of a sliding seat, rotatably disposing an adapter seat on the top of the rotating seat, and then fixing a bearing platform on the top of the adapter seat. The worm drives the worm wheel to rotate, which can drive the adapter seat and the bearing platform to rotate. It is suitable for beams with different curvatures. During use, it can not only support straight beams, but also effectively support curved beams, thereby increasing the scope of use.

[0018] 2. The jacking support structure for bridge construction has a bidirectional screw that is rotated in the slide, and the two sets of sliding seats are respectively threadedly connected to the two ends of the bidirectional screw. The two sets of sliding seats can be driven to move closer to or away from each other through the bidirectional screw, which can speed up the adjustment speed of the sliding seats and improve construction efficiency.

[0019] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. In this utility model, the rotating seat is arranged to be lifted on the top of the sliding seat. A transfer seat is rotatably arranged on the top of the rotating seat. Then, a bearing platform is fixedly arranged on the top of the transfer seat. By driving the worm to rotate the worm gear, the transfer seat and the bearing platform can be driven to rotate, which can not only support a linear beam body but also effectively support a curved beam body, improving the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structural schematic diagram of a jacking support structure for bridge construction proposed by the present utility model Figure 1 ;

[0021] Figure 2 The structural schematic diagram of a jacking support structure for bridge construction proposed by the present utility model Figure 2 ;

[0022] Figure 3 The front view of a jacking support structure for bridge construction proposed by the present utility model;

[0023] Figure 4 A jacking support structure for bridge construction proposed by the present utility model Figure 3 The enlarged view of part A in the figure.

[0024] In the figure: 1, horizontal support platform; 101, support column; 102, accommodation groove; 103, distribution box; 104, traveling wheel; 105, hydraulic cylinder; 2, sliding seat; 201, jack; 202, guide rod; 3, sliding table; 301, bidirectional screw; 4, rotating seat; 401, rotating groove; 5, transfer seat; 501, worm gear; 6, bearing platform; 7, clamping plate; 701, telescopic cylinder; 8, rotating shaft; 801, worm; 802, handle; 9, fastening screw; 901, knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Embodiment:

[0028] Referring to Figures 1 - 4 , a jacking support structure for bridge construction, including a horizontal support platform 1, on which a distribution box 103 is fixedly arranged to facilitate the control of the traveling wheels 104, the bidirectional screw 301, the telescopic cylinder 701, etc. At the bottom of the horizontal support platform 1, support columns 101 are fixedly arranged, and multiple groups of support columns 101 are symmetrically arranged. There are two to six groups of support columns 101. Here, according to the actual use situation, four groups are preferably selected, which can improve the support effect. And accommodating grooves 102 are formed in all four groups of support columns 101. The accommodating grooves 102 are coaxial with the support columns 101. A hydraulic cylinder 105 is fixedly arranged in the accommodating groove 102. A traveling wheel 104 is arranged at the output end of the hydraulic cylinder 105. When in use, when it is necessary to move the horizontal support platform 1, first start the four groups of hydraulic cylinders 105 simultaneously to make the traveling wheels 104 extend out of the accommodating grooves 102. At this time, the horizontal support platform 1 can be pushed to move, which is convenient for transferring the horizontal support platform 1 and improves the use effect. After the movement is completed, start the hydraulic cylinder 105 again to take the traveling wheels 104 back into the accommodating grooves 102. At this time, the support columns 101 are used for support, which can prevent the traveling wheels 104 from being stressed all the time and affecting the service life of the traveling wheels 104. It also includes two sliding seats 2, both of which are slidably arranged on the horizontal support platform 1. Among them, rotating seats 4 are respectively arranged on the two sliding seats 2 in a lifting manner, which can longitudinally adjust the height of the rotating seats 4 to improve the jacking effect. A transfer seat 5 is rotatably arranged in the rotating seat 4. A bearing platform 6 is fixedly arranged at one end of the transfer seat 5 away from the rotating seat 4. And a driving part for driving the transfer seat 5 to rotate is arranged on the rotating seat 4. When in use, by pushing the two sliding seats 2 to slide, the distance between the two sliding seats 2 can be adjusted. Then, according to the bending degree of the beam body, the transfer seat 5 is driven by the driving part to drive the bearing platform 6 to rotate by a corresponding angle, so that the two clamping plates 7 on the bearing platform 6 are respectively abutted against both sides of the beam body. It can not only support the straight beam body, but also effectively support the curved beam body, improving the scope of use.

[0029] When in use, by arranging the rotating seat 4 in a lifting manner on the top of the sliding seat 2, a transfer seat 5 is rotatably arranged on the top of the rotating seat 4. Then, a bearing platform 6 is fixedly arranged on the top of the transfer seat 5. By driving the worm wheel 501 to rotate through the worm 801, the transfer seat 5 and the bearing platform 6 can be driven to rotate, which is suitable for beam bodies with different bending degrees. During the use process, it can not only support the straight beam body, but also effectively support the curved beam body, improving the scope of use; by rotatably arranging a bidirectional screw 301 in the sliding table 3 and threadedly connecting the two sliding seats 2 to both ends of the bidirectional screw 301 respectively, the two sliding seats 2 can be driven to approach or move away from each other through the bidirectional screw 301, which can accelerate the adjustment speed of the sliding seats 2 and improve the construction efficiency.

[0030] Referring to Figure 4 , the driving part can directly use a motor or a servo motor to drive the adapter seat 5 to rotate. Here, we design the driving part as follows: a worm gear 501 is fixedly arranged on the adapter seat 5. Among them, a rotating groove 401 is opened in the rotating seat 4, and the worm gear 501 is rotatably arranged in the rotating groove 401. A rotating shaft 8 is rotatably arranged on the rotating seat 4. A worm 801 is fixedly arranged at one end of the rotating shaft 8 extending into the rotating groove 401. The worm 801 has self-locking property. The worm 801 is meshed with the worm gear 501. And a handle 802 is fixedly arranged on the rotating shaft 8. A scale line is fixedly arranged on the top of the rotating seat 4, which is convenient for observing the rotation angle of the carrier table 6 and improving the adjustment accuracy. When in use, the worm 801 is driven to rotate by the handle 802. The worm 801 is meshed with the worm gear 501, which can drive the adapter seat 5 and the carrier table 6 to rotate, facilitating the support of beam bodies with different bending degrees. The bending of the beam body refers to the bending in the horizontal plane direction.

[0031] Referring to Figure 4 , a fastening screw 9 is threadedly connected to the rotating seat 4. One end of the fastening screw 9 abuts against the outer wall of the rotating shaft 8. A knob 901 is fixedly arranged at the other end of the fastening screw 9. When the positions of the adapter seat 5 and the carrier table 6 are adjusted, the fastening screw 9 is driven to approach the rotating shaft 8 by the knob 901 and abuts against the outer wall of the rotating shaft 8, which can, to a certain extent, limit the rotation of the rotating shaft 8 and prevent accidentally touching the handle 802 and then driving the rotating shaft 8 to rotate, resulting in the movement of the carrier table 6 that has been adjusted and affecting the normal use.

[0032] Referring to Figure 4 , a clamping pad is fixedly arranged at one end of the fastening screw 9. The material of the clamping pad can be rubber or nylon or polyurethane, preferably rubber. The clamping pad abuts against the outer wall of the rotating shaft 8. When in use, by fixedly arranging a clamping pad on the fastening screw 9 and making the clamping pad abut against the rotating shaft 8, on the one hand, the limiting effect on the rotating shaft 8 can be achieved, and on the other hand, the outer wall of the rotating shaft 8 can be prevented from being damaged, improving the service life.

[0033] Referring to Figure 1 and Figure 3, a sliding table 3 is fixedly arranged on the top of the horizontal support table 1. Two sliding seats 2 are both slidably arranged on the sliding table 3 and symmetrically arranged on the sliding table 3. A bidirectional screw 301 is rotatably arranged in the sliding table 3. The two sliding seats 2 are respectively threadedly connected to the two ends of the bidirectional screw 301. The two sliding seats 2 are symmetrically distributed on the bidirectional screw 301. The bidirectional screw 301 has self-locking property, and a motor for driving the bidirectional screw 301 to rotate is fixedly arranged in the horizontal support table 1. A first gear is fixedly arranged at the output end of the motor, and a second gear is fixedly arranged on the bidirectional screw 301. The first gear is meshed with the second gear. During use, the motor drives the first gear to rotate, and the first gear is meshed with the second gear, so as to drive the bidirectional screw 301 to rotate, thereby driving the two sliding seats 2 to approach or move away from each other. The adjustment is convenient and the adjustment accuracy is high.

[0034] Refer to Figure 1 , fixing plates are respectively fixedly arranged at both ends of the bearing table 6. Clamping plates 7 are both slidably arranged on the two fixing plates, and a telescopic cylinder 701 is fixedly arranged on the fixing plates. The clamping plates 7 are fixed at the output ends of the telescopic cylinders 701, and the end surface of the clamping plate 7 far away from the telescopic cylinder 701 is an arc surface. During use, by slidably arranging the clamping plates 7 on the bearing table 6, the beam body can be fixed, improving the stability of the beam body. Moreover, an arc surface is fixedly arranged on the clamping plate 7, which is convenient for fixing a curved beam body and improving the use effect.

[0035] Refer to Figure 1 and Figure 3 , a jack 201 is fixedly arranged on the sliding seat 2. A rotating seat 4 is fixedly arranged at the output end of the jack 201, and guide rods 202 are respectively fixedly arranged at both ends of the rotating seat 4. The two guide rods 202 are both slidably connected to the sliding seat 2. During use, the jack 201 can drive the rotating seat 4 to lift reliably, improving the support effect. Moreover, the guide rods 202 are fixedly arranged on the rotating seat 4, which can ensure the reliable lifting of the rotating seat 4 and avoid deflection, affecting the normal use.

[0036] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A jacking support structure for bridge construction, including a horizontal support platform (1), characterized in that, It further includes: Two groups of sliding seats (2), both of which are slidably arranged on the horizontal support platform (1), wherein, rotating seats (4) are respectively arranged on the two groups of sliding seats (2) in a lifting manner, a transfer seat (5) is rotatably arranged in the rotating seat (4), a bearing platform (6) is fixedly arranged at one end of the transfer seat (5) away from the rotating seat (4), and a driving part for driving the transfer seat (5) to rotate is arranged on the rotating seat (4).

2. The jacking support structure for bridge construction according to claim 1, characterized in that, The driving part includes a worm gear (501) fixedly arranged on the transfer seat (5), wherein, a rotating groove (401) is formed in the rotating seat (4), the worm gear (501) is rotatably arranged in the rotating groove (401), a rotating shaft (8) is rotatably arranged on the rotating seat (4), one end of the rotating shaft (8) extending into the rotating groove (401) is fixedly provided with a worm (801), the worm (801) is meshed with the worm gear (501), and a handle (802) is fixedly arranged on the rotating shaft (8).

3. The jacking support structure for bridge construction according to claim 2, wherein, A fastening screw (9) is threadedly connected to the rotating seat (4), one end of the fastening screw (9) abuts against the outer wall of the rotating shaft (8), and a knob (901) is fixedly arranged at the other end of the fastening screw (9).

4. A jacking support structure for bridge construction according to claim 3, characterized in that, A clamping pad is fixedly arranged at one end of the fastening screw (9), and the clamping pad abuts against the outer wall of the rotating shaft (8).

5. A jacking support structure for bridge construction according to claim 1, characterized in that, A sliding table (3) is fixedly arranged at the top of the horizontal support platform (1), the two groups of sliding seats (2) are symmetrically arranged on the sliding table (3), a bidirectional screw (301) is rotatably arranged in the sliding table (3), the two groups of sliding seats (2) are respectively threadedly connected to both ends of the bidirectional screw (301), and a motor for driving the bidirectional screw (301) to rotate is fixedly arranged in the horizontal support platform (1).

6. The jacking support structure for bridge construction according to claim 5, characterized in that, A first gear is fixedly arranged at the output end of the motor, a second gear is fixedly arranged on the bidirectional screw (301), and the first gear is meshed with the second gear.

7. A jacking support structure for bridge construction according to claim 1, characterized in that, Fixing plates are respectively fixedly arranged at both ends of the bearing platform (6), clamping plates (7) are slidably arranged on both groups of fixing plates, a telescopic cylinder (701) is fixedly arranged on the fixing plates, the clamping plates (7) are fixed at the output end of the telescopic cylinder (701), and the end face of the clamping plate (7) away from the telescopic cylinder (701) is an arc surface.

8. The jacking support structure for bridge construction according to claim 1, characterized in that, A jack (201) is fixedly arranged on the sliding seat (2), the rotating seat (4) is fixed at the output end of the jack (201), and guide rods (202) are respectively fixedly arranged at both ends of the rotating seat (4), and the two groups of guide rods (202) are both slidably connected to the sliding seat (2).

9. The jacking support structure for bridge construction according to claim 1, characterized in that, Support columns (101) are fixedly arranged at the bottom of the horizontal support platform (1), and multiple groups of the support columns (101) are symmetrically arranged.

10. A jacking support structure for bridge construction according to claim 9, characterized in that, Receiving grooves (102) are formed in multiple groups of the support columns (101), hydraulic cylinders (105) are fixedly arranged in the receiving grooves (102), and traveling wheels (104) are arranged at the output ends of the hydraulic cylinders (105).

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