Bridge steel structure supporting frame

Abstract

The utility model relates to the technical field of bridge construction, in particular to a bridge steel structure supporting frame which comprises a bottom plate, positioning mechanisms, a first lifting mechanism, a second lifting mechanism and a supporting cushioning mechanism, the positioning mechanisms are symmetrically arranged on the side edges of the bottom plate, the first lifting mechanism is connected to the upper end of the bottom plate, and the second lifting mechanism is connected to the lower end of the bottom plate. Supporting blocks are symmetrically arranged at the upper end of the first lifting mechanism, the upper end of the first lifting mechanism is connected with a second lifting mechanism, the second lifting mechanism is connected with a supporting cushioning mechanism, and supporting pads are symmetrically arranged at the lower end of the bottom plate; the first lifting mechanism and the second lifting mechanism are arranged, the height of the first lifting mechanism is adjusted by starting a driving motor in the using process, bridges with different heights can be conveniently supported, and when the height of the first lifting mechanism is not enough, the second lifting mechanism is started for lifting to improve the supporting height; and when the first lifting mechanism and the second lifting mechanism are folded, the occupied space is reduced.

Description

Technical Field

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

[0002] A common bridge steel structure support frame is the bridge erection machine support frame, which is usually made of steel pipe material and has the advantages of high strength and good corrosion resistance. Various working platforms and supporting facilities can be set on the support frame to support and construct the bridge structure. At the same time, the support frame can also adjust the height and inclination angle according to actual needs to adapt to the structural form and terrain conditions of different bridges. The design and installation of the support frame requires professional technology and experience to ensure safety and stability during the construction process. However, the existing bridge steel structure support frame still has the following problems in actual use:

[0003] Patent No. "CN201821687728.6" discloses a bridge steel structure support frame. When the device is in use, an expansion joint is left between the left support seat and the right support seat; a left steel frame is embedded in the left support seat, and a right steel frame is embedded in the right support seat, and both the left steel frame and the right steel frame are rectangular frame structures; a left support bar is welded and fixed in the left steel frame, and a right support bar is welded in the right steel frame, and the upper parts of the left support bar and the right support bar are both obliquely arranged, and reinforcing ribs of a trapezoidal structure are welded and fixed on the inner sides of the left support bar and the right support bar respectively; A left connecting block is also connected to the upper part of the left steel frame, and a right connecting block is also connected to the upper part of the right steel frame. The inner side of the left connecting block is respectively connected and fixed to the left steel frame and the left support bar, and the inner side of the right connecting block is respectively connected and fixed to the right steel frame and the right support bar. During use, the device cannot adjust the support height, resulting in the device being able to support only at a fixed height, making the device less practical. In addition, the device cannot provide shock absorption during use, resulting in greater pressure on the support frame during use, which will reduce the life of the device during long-term use. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem and proposes a bridge steel structure support frame, which improves the problems of poor practicability and short service life of the existing bridge steel structure support frames.

[0005] A bridge steel structure support frame comprises: a base plate, a positioning mechanism, a first lifting mechanism, a second lifting mechanism and a support and shock-absorbing mechanism, wherein the positioning mechanism is symmetrically arranged on the side of the base plate, the upper end of the base plate is connected to the first lifting mechanism, the upper end of the first lifting mechanism is symmetrically arranged with support blocks, the upper end of the first lifting mechanism is connected to the second lifting mechanism, the second lifting mechanism is connected to the support and shock-absorbing mechanism, and the lower end of the base plate is symmetrically arranged with support pads.

[0006] Preferably, the positioning mechanism includes a connecting plate and bolts, and two connecting plates are symmetrically arranged on the sides of the base plate, and the two connecting plates are symmetrically threadedly connected with bolts.

[0007] Preferably, the first lifting mechanism includes a first support plate, a driving motor and a threaded rod, two first support plates are symmetrically arranged on the upper end of the base plate, and the first support plate is arranged in an inverted "L" shape, and a driving motor is arranged on the upper end of the two first support plates, and the output shaft of the driving motor is connected to the threaded rod, and the threaded rod rotatably connects the first support plate and the base plate.

[0008] Preferably, two first sliding rods are symmetrically arranged between the first support plate and the bottom plate, the two threaded rods are threadedly connected to the second support plate, and the second support plate is slidably connected to the first sliding rods.

[0009] Preferably, the second lifting mechanism includes a shell, a second sliding rod, a vent and an electric telescopic column, four shells are symmetrically arranged on the upper end of the second support plate, the shell is slidably connected to the second sliding rod, vents are arranged at equal angles at the bottom end of the second sliding rod, and an electric telescopic column is arranged on the upper end of the second support plate.

[0010] Preferably, the second sliding rod and the upper end of the electric telescopic column are both connected to the third support plate.

[0011] Preferably, the support and shock-absorbing mechanism includes a slide groove, a third slide rod and a spring column, the third support plate is symmetrically provided with a slide groove, the slide groove is slidably connected to the third slide rod, the upper end of the third slide rod is connected to the fourth support plate, and a spring column is arranged between the fourth support plate and the third support plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. A first lifting mechanism and a second lifting mechanism are provided. During use, the height of the first lifting mechanism is adjusted by starting the driving motor, so as to support bridges of different heights. When the height of the first lifting mechanism is not enough, the supporting height is increased by starting the second lifting mechanism. When the first lifting mechanism and the second lifting mechanism are folded, the occupied space is reduced.

[0014] 2. A supporting shock-absorbing mechanism is provided. The bridge is supported by the fourth supporting plate during use. When the bridge shakes, the spring column can be used for shock absorption. At the same time, the third sliding bar slides on the inside of the sliding groove to position and absorb shock to prevent the fourth supporting plate from tilting, thereby improving the stability of the device during use and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural diagram of the positioning mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the first lifting mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the second lifting mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the supporting and shock-absorbing mechanism of the utility model.

[0020] In the figure: 1. bottom plate; 2. positioning mechanism; 21. connecting plate; 22. bolt; 3. first lifting mechanism; 31. first support plate; 32. driving motor; 33. threaded rod; 34. first slide bar; 35. second support plate; 4. support block; 5. second lifting mechanism; 51. shell; 52. second slide bar; 53. vent; 54. electric telescopic column; 6. support and shock-absorbing mechanism; 61. third support plate; 62. slide groove; 63. third slide bar; 64. spring column; 65. fourth support plate; 7. support pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] When implementing: Figure 1-5 As shown, a bridge steel structure support frame comprises: a base plate 1, a positioning mechanism 2, a first lifting mechanism 3, a second lifting mechanism 5 and a supporting shock-absorbing mechanism 6. The positioning mechanism 2 is symmetrically arranged on the side of the base plate 1, the upper end of the base plate 1 is connected to the first lifting mechanism 3, the upper end of the first lifting mechanism 3 is symmetrically arranged with a supporting block 4, the upper end of the first lifting mechanism 3 is connected to the second lifting mechanism 5, the second lifting mechanism 5 is connected to the supporting shock-absorbing mechanism 6, and the lower end of the base plate 1 is symmetrically arranged with a supporting pad 7. When the device is in use, the device is first positioned by the positioning mechanism 2, and then the first lifting mechanism 3 is started for lifting and supporting according to the use situation, and the support object is supported and shock-absorbing by the supporting shock-absorbing mechanism 6. At the same time, when the supporting height of the first lifting mechanism 3 is not enough during use, the supporting height is increased by starting the second lifting mechanism 5 to improve the practicality of the device.

[0023] The positioning mechanism 2 includes a connecting plate 21 and a bolt 22. Two connecting plates 21 are symmetrically arranged on the side of the base plate 1. The two connecting plates 21 are symmetrically threaded with the bolts 22. When the device is in use, the bolts 22 are rotated at the upper end of the connecting plate 21 and rotated to the ground to position the base plate 1 and the connecting plate 21.

[0024] The first lifting mechanism 3 includes a first support plate 31, a drive motor 32 and a threaded rod 33. Two first support plates 31 are symmetrically arranged on the upper end of the base plate 1, and the first support plates 31 are arranged in an inverted "L" shape. The upper ends of the two first support plates 31 are both provided with a drive motor 32, and the output shaft of the drive motor 32 is connected to the threaded rod 33, and the threaded rod 33 rotatably connects the first support plate 31 and the base plate 1.

[0025] Two first sliding rods 34 are symmetrically arranged between the first support plate 31 and the bottom plate 1, and the two threaded rods 33 are threadedly connected to the second support plate 35. The second support plate 35 is slidably connected to the first sliding rod 34. When the device is in use, the two driving motors 32 are started at the same time, and the threaded rods 33 are driven to rotate by the driving motors 32. During the rotation of the threaded rods 33, the second support plate 35 is driven to slide on the side of the first sliding rod 34. The second support plate 35 is raised and lowered by operating the driving motor 32 to rotate in the reverse direction.

[0026] The second lifting mechanism 5 includes a shell 51, a second sliding rod 52, a vent 53 and an electric telescopic column 54. Four shells 51 are symmetrically arranged on the upper end of the second support plate 35. The shell 51 is slidably connected to the second sliding rod 52. The vents 53 are arranged at equal angles at the bottom end of the second sliding rod 52. The electric telescopic column 54 is arranged on the upper end of the second support plate 35.

[0027] The upper ends of the second slide bar 52 and the electric telescopic column 54 are both connected to the third support plate 61. When the device is in use, when the support height of the first lifting mechanism 3 is not enough, the electric telescopic column 54 is started to push the third support plate 61 to rise. At the same time, the third support plate 61 drives the second slide bar 52 to slide inside the shell 51 during the rising process. When the electric telescopic column 54 is damaged, the second slide bar 52 slides inside the shell 51, and ventilation is carried out through the provided vent hole 53 to prevent the third support plate 61 from descending too fast, causing the operator to be injured.

[0028] The supporting shock-absorbing mechanism 6 includes a slide groove 62, a third slide rod 63 and a spring column 64. The slide groove 62 is symmetrically opened on the upper end of the third support plate 61. The slide groove 62 is slidably connected to the third slide rod 63. The upper end of the third slide rod 63 is connected to the fourth support plate 65. A spring column 64 is arranged between the fourth support plate 65 and the third support plate 61. When the device is in use, the bridge is supported by the fourth support plate 65. When the bridge shakes, the spring column 64 is used for shock absorption. At the same time, the third slide rod 63 slides inside the slide groove 62 to position and shock absorb the fourth support plate 65 to prevent the fourth support plate 65 from tilting.

[0029] When the utility model is used, firstly, the bolt 22 is rotated at the upper end of the connecting plate 21 to rotate the bolt 22 to the ground, so as to position the bottom plate 1 and the connecting plate 21;

[0030] After the positioning is completed, the two driving motors 32 are started at the same time, and the driving motors 32 drive the threaded rod 33 to rotate. During the rotation of the threaded rod 33, the second support plate 35 is driven to slide on the side of the first slide rod 34. By operating the driving motor 32 to rotate in the reverse direction, the second support plate 35 is controlled to be raised and lowered;

[0031] When the support height of the first lifting mechanism 3 is not enough, the electric telescopic column 54 is started to push the third support plate 61 to rise. At the same time, the third support plate 61 drives the second slide bar 52 to slide inside the shell 51 during the lifting process. When the electric telescopic column 54 is damaged, the second slide bar 52 slides inside the shell 51 and ventilation is performed through the vent hole 53 to prevent the third support plate 61 from descending too fast, which may cause the operator to be injured.

[0032] At the same time, the bridge is supported by the fourth support plate 65 during use. When the bridge shakes, the spring column 64 is used to cushion the vibration. At the same time, the third slide bar 63 slides inside the slide groove 62 to position and cushion the vibration of the fourth support plate 65 to prevent the fourth support plate 65 from tilting.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bridge steel structure support frame, characterized in that: include: A base plate (1), a positioning mechanism (2), a first lifting mechanism (3), a second lifting mechanism (5) and a supporting shock absorbing mechanism (6); the base plate (1) is symmetrically provided with a positioning mechanism (2) on its side; the upper end of the base plate (1) is connected to the first lifting mechanism (3); the upper end of the first lifting mechanism (3) is symmetrically provided with a supporting block (4); the upper end of the first lifting mechanism (3) is connected to the second lifting mechanism (5); the second lifting mechanism (5) is connected to the supporting shock absorbing mechanism (6); and the lower end of the base plate (1) is symmetrically provided with a supporting pad (7).

2. A bridge steel structure support frame according to claim 1, characterized in that: The positioning mechanism (2) comprises a connecting plate (21) and a bolt (22); two connecting plates (21) are symmetrically arranged on the side of the base plate (1); and the two connecting plates (21) are symmetrically threadedly connected with the bolt (22).

3. A bridge steel structure support frame according to claim 2, characterized in that: The first lifting mechanism (3) comprises a first support plate (31), a drive motor (32) and a threaded rod (33); two first support plates (31) are symmetrically arranged on the upper end of the base plate (1), and the first support plates (31) are arranged in an inverted "L" shape; a drive motor (32) is arranged on the upper end of the two first support plates (31); an output shaft of the drive motor (32) is connected to a threaded rod (33); and the threaded rod (33) is rotatably connected to the first support plate (31) and the base plate (1).

4. A bridge steel structure support frame according to claim 3, characterized in that: Two first sliding rods (34) are symmetrically arranged between the first support plate (31) and the bottom plate (1); the two threaded rods (33) are threadedly connected to a second support plate (35); and the second support plate (35) is slidably connected to the first sliding rods (34).

5. A bridge steel structure support frame according to claim 4, characterized in that: The second lifting mechanism (5) comprises a shell (51), a second sliding rod (52), a vent (53) and an electric telescopic column (54); four shells (51) are symmetrically arranged on the upper end of the second support plate (35); the shell (51) is slidably connected to the second sliding rod (52); the bottom end of the second sliding rod (52) is provided with vents (53) at equal angles; and the upper end of the second support plate (35) is provided with an electric telescopic column (54).

6. A bridge steel structure support frame according to claim 5, characterized in that: The upper ends of the second sliding rod (52) and the electric telescopic column (54) are both connected to the third supporting plate (61).

7. A bridge steel structure support frame according to claim 6, characterized in that: The support and shock absorbing mechanism (6) comprises a slide groove (62), a third slide rod (63) and a spring column (64); the slide groove (62) is symmetrically provided at the upper end of the third support plate (61); the slide groove (62) is slidably connected to the third slide rod (63); the upper end of the third slide rod (63) is connected to the fourth support plate (65); and a spring column (64) is provided between the fourth support plate (65) and the third support plate (61).

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