Wedge-shaped steel plate spiral slope adjusting device for movable steel pedestal

Abstract

The utility model discloses a spiral slope adjusting device for a wedge-shaped steel plate of a movable steel pedestal. The spiral slope adjusting device comprises a base, the fixed steel plate is horizontally arranged on the base; the four fixed threaded sleeves are distributed on the fixed steel plate in a rectangular array; the four adjusting threaded screws are correspondingly mounted in the four fixed threaded sleeves; the four adjusting nuts are mounted at the bottoms of the four adjusting threaded screws respectively; the horizontally-arranged bottom plate slope adjusting steel plate is in ball connection with the tops of the four adjusting threaded screws. The gradient adjusting device for the wedge-shaped block at the bottom of the prefabricated box girder is less in investment, flexible to use and simple to operate, can adjust the gradient of the wedge-shaped block at the bottom of the beam slab to millimeter, can be repeatedly used, and meets the standard construction of the prefabricated box girder. The device is simple in structure, easy to operate, high in flexibility, good in economical efficiency, high in safety, capable of guaranteeing construction quality, capable of being widely applied to gradient adjustment of wedge-shaped blocks at the bottoms of various precast beams and slabs, and remarkable in benefit.

Description

Technical Field

[0001] This utility model relates to the technical field of box girder prefabrication construction equipment, and in particular to a spiral slope adjustment device for a wedge-shaped steel plate on a mobile steel platform. Background Technology

[0002] In the design of various precast beams in bridge engineering, when the longitudinal and transverse slopes of the bridge deck are large, wedge blocks are installed at the bottom of the precast beam ends to ensure the accuracy of the precast beam erection and the safety of the subsequent structure. Adjustments are made by setting corresponding longitudinal and transverse slopes at the bottom of the wedge blocks. The construction of the wedge blocks must be accurate to the millimeter to meet structural requirements. The construction accuracy of the wedge blocks at the bottom of the beam ensures that the longitudinal and transverse slopes of the top surface of the precast beam meet the design requirements after erection. If the wedge blocks at the bottom of the beam are not tightly fitted to the supports, or if the support is uneven or detached, uneven pressure will occur. Under long-term dynamic loads from vehicles, the supports are prone to damage or even detachment, posing a quality hazard to the safe operation of the bridge. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a mobile steel platform wedge-shaped steel plate spiral slope adjustment device.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A movable steel platform wedge-shaped steel plate spiral slope adjustment device includes:

[0006] Base;

[0007] The steel plate is fixed and horizontally mounted on the base.

[0008] Four fixed threaded sleeves are arranged in a rectangular array on a fixed steel plate;

[0009] Four adjusting threaded screws are installed in four fixed threaded sleeves;

[0010] Four adjusting nuts are installed at the bottom of four adjusting threaded screws;

[0011] The base plate is horizontally set with a slope adjustment steel plate, and the ball is connected to the top of four adjusting threaded screws.

[0012] The base is an H-shaped structure composed of three reinforced I-beams connected to each other.

[0013] The base plate slope adjustment steel plate is provided with four mechanism ball sockets corresponding to the positions of the four adjusting threaded screws. Universal flange ball heads are installed in the mechanism ball sockets and are installed on the top of the adjusting threaded screws.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model is applicable to mobile steel pedestals, fixed steel pedestals, and concrete pedestals.

[0016] 2. This utility model has a low investment, flexible use, and simple operation for adjusting the slope of the precast box girder bottom wedge block. It can adjust the wedge block of the beam bottom to millimeters with precision, and it can be reused to meet the standardized construction of precast box girders.

[0017] 3. This utility model can be applied to the slope adjustment of the wedge-shaped blocks at the bottom of precast bridge beams with large longitudinal and transverse slopes.

[0018] 4. This utility model has a simple structure, is easy to operate, highly flexible, economical, safe, and has guaranteed construction quality. It can be widely used for slope adjustment of wedge blocks at the bottom of various precast beams and slabs, with significant benefits. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a front view of the present invention.

[0021] Figure 3 This is the left view of the present invention.

[0022] In the diagram: 1—base plate slope adjustment steel plate; 2—mechanical ball socket; 3—universal flange ball head; 4—fixed threaded sleeve; 5—adjusting threaded screw; 6—adjusting nut; 7—fixed steel plate; 8—reinforcing I-beam. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] like Figures 1 to 3As shown, a movable steel platform wedge-shaped steel plate spiral slope adjustment device includes: a base; a fixed steel plate 7, horizontally set on the base; four fixed threaded sleeves 4, distributed in a rectangular array on the fixed steel plate 7; four adjusting threaded rods 5, correspondingly installed in the four fixed threaded sleeves 4; four adjusting nuts 6, respectively installed at the bottom of the four adjusting threaded rods 5; and a horizontally set base plate slope adjustment steel plate 1, ball-jointed to the top of the four adjusting threaded rods 5. The base is an H-shaped structure composed of three reinforced I-beams 8 interconnected. The base plate slope adjustment steel plate 1 is provided with four mechanism ball sockets 2 corresponding to the positions of the four adjusting threaded rods 5, and universal flange ball heads 3 are fitted into the mechanism ball sockets 2, which are fitted into the top of the adjusting threaded rods 5.

[0025] In use, this utility model is placed at the bottom of the beam. By rotating the adjusting nut 6, the adjusting threaded screw 5 welded to it will rotate. At this time, the adjusting threaded screw 5 moves up and down inside the fixed threaded sleeve 4, thereby causing the bottom plate slope adjusting steel plate 1 to deflect and realize the slope adjustment.

[0026] Specifically, the universal flange ball head 3 with the ball head end is installed in the ball socket 2 of the mechanism, and one end is connected to the adjusting threaded screw 5. The adjusting threaded screw 5 passes through the fixed threaded sleeve 4 and the adjusting nut 6 is welded to the end of the screw. The slope of the beam bottom is adjusted by rotating the adjusting nut 6. The fixed steel plate 7 has holes at four corners. The fixed threaded sleeve 4 is inserted into the holes and welded vertically to the steel plate. The reinforcing I-beam 8 is welded to the fixed steel plate 7 and finally welded to the movable steel base according to the design drawings.

[0027] Wherein: the bottom plate slope adjustment steel plate 1 is a steel plate with a thickness of 2cm. Its length is consistent with the width of the bottom mold of the moving platform, and its width is 10cm wider than the pre-embedded steel plate to ensure that it does not deform during use. It serves as the bottom mold of the box girder wedge block. The top of the bottom plate slope adjustment steel plate 1 contacts the pre-embedded steel plate at the bottom of the beam to provide support. The slope adjustment function is achieved by adjusting the inclination of the bottom plate slope adjustment steel plate 1 by adjusting the threaded screw 5.

[0028] The mechanism ball socket 2 consists of four parts, which are welded to the four corners of the bottom slope adjustment steel plate 1 (back side). The center positions of the four mechanism ball sockets 2 are the diagonal points of the four 175mm x 175mm squares at the corners of the steel plate.

[0029] The universal flange ball head 3 with the ball head end is installed in the ball socket 2 of the mechanism to ensure uniform force during slope adjustment. It can adjust the slope to a large degree and is suitable for bridges with large longitudinal and transverse slopes. One end is connected to the adjusting threaded screw 5.

[0030] The adjusting threaded screw 5 passes through the fixed threaded sleeve 4, and an adjusting nut 6 is welded to the end of the screw. The slope of the beam bottom is adjusted by rotating the adjusting nut 6. The adjusting threaded screw 5 should have high strength, deep threads, and sharp screw teeth to ensure uniform force distribution and prevent slippage during rotation.

[0031] The size of the four corner holes of the fixed steel plate 7 is consistent with the outer diameter of the fixed threaded sleeve 4, and its center line is consistent with the center line of the ball socket 2 of the mechanism. The fixed threaded sleeve 4 is inserted into the hole and welded vertically to the steel plate for reinforcement.

[0032] The reinforcing I-beams 8 are welded into an H-shape and then welded to the bottom of the fixed steel plate 7. The movable steel platform I-beams are 40# I-beams and are finally welded to the movable steel platform according to the actual situation of the steel platform.

[0033] Specific applications are as follows:

[0034] like Figure 1-3 Both the base plate slope adjustment steel plate 1 and the fixed steel plate 7 are 2cm thick steel plates. Their length is consistent with the width of the bottom mold of the movable platform, and their width is 10cm wider than the pre-embedded steel plate to ensure that they do not deform during use. The diagonal points of the four 175mm x 175mm squares at the corners of the base plate slope adjustment steel plate 1 are marked as the center points of the four mechanism ball sockets 2, which are consistent with the center lines of the four corner openings of the fixed steel plate 7. The size of the openings is consistent with the outer diameter of the fixed threaded sleeve 4. They can be adjusted appropriately on site according to the actual situation.

[0035] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A movable steel platform wedge-shaped steel plate spiral slope adjustment device, characterized in that, include: Base; The fixed steel plate (7) is horizontally set on the base; Four fixed threaded sleeves (4) are arranged in a rectangular array on the fixed steel plate (7); Four adjusting threaded screws (5) are installed in four fixed threaded sleeves (4); Four adjusting nuts (6) are installed at the bottom of four adjusting threaded screws (5); A horizontally set base plate slope adjustment steel plate (1) is connected to the top of four adjusting threaded screws (5).

2. The movable steel platform wedge-shaped steel plate spiral slope adjustment device according to claim 1, characterized in that: The base is an H-shaped structure composed of three reinforced I-beams (8) connected to each other.

3. The movable steel platform wedge-shaped steel plate spiral slope adjustment device according to claim 1, characterized in that: The base plate slope adjustment steel plate (1) is provided with four mechanism ball sockets (2) corresponding to the positions of the four adjustment threaded screws (5). A universal flange ball head (3) is installed in the mechanism ball socket (2), and the universal flange ball head (3) is installed on the top of the adjustment threaded screw (5).

Images