Fine adjustment fixing device for prefabricated column bearing cup opening

Abstract

The utility model discloses a fine adjustment fixing device for a prefabricated column bearing cup opening, which belongs to the technical field of subway station assembly and comprises a bearing cup with a regular trapezoidal shape and an inverted trapezoidal bearing slot inside. The fine adjustment fixing device is arranged at the cup opening of the receiving cup and comprises a bracket, a positioning nut and a threaded rod; the bracket comprises a vertical surface and a trapezoidal groove; a positioning nut is fixed on the vertical surface of the bracket; a threaded rod is arranged in the positioning nut; the threaded rod vertically penetrates through the vertical surface; the trapezoid-shaped groove is arranged below the vertical face, and the inner surface of the trapezoid-shaped groove is matched with the shape of the outer contour of a cup opening of the bearing cup. The longitudinal position and the transverse position of the middle stand column can be adjusted by adjusting the threaded rod, and construction precision and quality are guaranteed; the inner surface of the trapezoid groove is matched with the outer contour of the cup opening of the bearing cup in shape, the effect of stabilizing the support is achieved, and the whole fine adjustment fixing device is stably embedded in the cup opening of the bearing cup.

Description

Technical Field

[0001] The utility model belongs to the technical field of subway station assembly, in particular to a fine-tuning fixing device for a prefabricated column receiving cup mouth. Background Art

[0002] The existing urban rail transit project is an assembled station under the internal support system. The size of the prefabricated center column is 500×500×6300mm. The center column adopts a receiving cup with a regular trapezoidal shape and an inverted trapezoidal socket inside, and then the grouting material is backfilled to fix the cup mouth. During the construction process, a gantry crane is used to lift and place the column. The column placement mouth is fixed and adjusted by the cylinders of the assembly trolleys on the left and right sides. The cylinder can only adjust the left and right horizontal positions of the center column. Since the trolley needs to move longitudinally, the longitudinal position adjustment of the center column cannot be achieved, which brings certain difficulties to the construction and it is difficult to ensure the construction quality.

[0003] Therefore, a new technical solution is urgently needed in the prior art to solve this problem. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a fine-adjusting fixing device for a prefabricated column receiving cup mouth, which is used to solve the problem that the longitudinal position of the neutral column cannot be adjusted and the construction quality is difficult to ensure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fine-adjusting fixing device for the receiving cup mouth of a prefabricated column, comprising a receiving cup with a regular trapezoidal shape and an inverted trapezoidal socket slot inside; the fine-adjusting fixing device is arranged at the cup mouth of the receiving cup, and the fine-adjusting fixing device comprises a bracket, a positioning nut and a threaded rod; the bracket comprises a vertical surface and a trapezoidal groove; a positioning nut is fixed on the vertical surface of the bracket; a threaded rod is arranged in the positioning nut; the threaded rod is arranged vertically through the vertical surface; the trapezoidal groove is arranged below the vertical surface, and the inner surface of the trapezoidal groove matches the outer contour of the cup mouth of the receiving cup.

[0006] Preferably, the facade of the bracket forms a rectangular frame structure; the bracket is a frame structure with four sides that can be disassembled; the bracket includes a transverse frame and a longitudinal frame; the facade of the transverse frame is a straight plate structure; the facade of the longitudinal frame is a U-shaped plate structure, the longitudinal frame is clamped between the transverse frames, and the longitudinal frame and the transverse frame are fixed by bolts.

[0007] Through the above design scheme, the utility model can bring the following beneficial effects:

[0008] 1. A positioning nut is fixed on the vertical surface of the bracket; a threaded rod is arranged inside the positioning nut and vertically penetrates the vertical surface; the longitudinal and lateral positions of the center column can be adjusted by adjusting the threaded rod, thus ensuring the construction accuracy and quality;

[0009] 2. By setting a trapezoidal groove under the facade, the inner surface of the trapezoidal groove fits the outer contour of the cup mouth of the receiving cup, so as to achieve the effect of stabilizing the bracket, so that the entire fine-tuning fixture is stably nested on the cup mouth of the receiving cup;

[0010] 3. The bracket is a frame structure with detachable sides on all four sides, which makes it easy to disassemble a neutral column and install it on the next cup mouth for repeated use, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0012] Figure 2 The utility model is a schematic diagram of assembling a fine-adjusting fixing device for a receiving cup mouth of a prefabricated column and a receiving cup.

[0013] Figure 3 It is a three-dimensional schematic diagram of a horizontal frame of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0014] Figure 4 It is a three-dimensional schematic diagram of a longitudinal frame of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0015] Figure 5 It is a front view of a transverse frame of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0016] Figure 6 It is an AA cross-sectional view of a transverse frame of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0017] Figure 7 It is a BB cross-sectional view of a transverse frame of a fine-adjusting fixing device for a prefabricated column receiving a cup mouth according to the utility model.

[0018] In the figure, 1-receiving cup, 2-bracket, 21-vertical surface, 22-trapezoidal groove, 23-transverse frame, 24-vertical frame, 25-bolt, 3-positioning nut, 4-threaded rod. DETAILED DESCRIPTION

[0019] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

[0020] It should be noted that the terms "front and back, up and down, left and right" and the like described in the text are merely simplified expressions based on the accompanying drawings for the purpose of intuitively describing the positional relationship, and are not limitations of the technical solution.

[0021] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the preferred embodiments. It should be understood by those skilled in the art. The content described in detail below is illustrative rather than restrictive, and the user may make various changes to the following parameters without departing from the inventive mechanism and scope set forth in the claims. In order to avoid confusing the essence of the present invention, known methods and processes are not described in detail.

[0022] By the attached Figures 1 to 7 As shown: a fine-adjusting fixing device for the receiving cup mouth of a prefabricated column, comprising a receiving cup 1 with a regular trapezoidal shape and an inverted trapezoidal socket slot inside; the fine-adjusting fixing device is arranged at the cup mouth of the receiving cup 1, and the fine-adjusting fixing device comprises a bracket 2, a positioning nut 3 and a threaded rod 4; the bracket 2 comprises a vertical surface 21 and a trapezoidal groove 22; a positioning nut 3 is fixed on the vertical surface 21 of the bracket 2; a threaded rod 4 is arranged in the positioning nut 3; the threaded rod 4 is arranged vertically through the vertical surface 21; the trapezoidal groove 22 is arranged below the vertical surface 21, and the inner surface of the trapezoidal groove 22 is matched with the outer contour of the cup mouth of the receiving cup 1.

[0023] By setting a trapezoidal groove 22 below the facade 21, the inner surface of the trapezoidal groove 22 matches the outer contour of the cup mouth of the receiving cup 1, so as to achieve the effect of stabilizing the bracket, so that the entire fine-adjustment fixing device is stably nested on the cup mouth of the receiving cup 1; by fixing a positioning nut 3 on the facade 21 of the bracket 2; a threaded rod 4 is set in the positioning nut 3 and vertically penetrates the facade; the longitudinal position and lateral position of the center column can be adjusted by adjusting the threaded rod 4, so as to ensure the construction accuracy and quality;

[0024] Furthermore, the facade 21 of the bracket 2 forms a rectangular frame structure.

[0025] Furthermore, in order to facilitate the construction of a central column, dismantle it and install it on the next cup mouth for repeated recycling, thereby saving costs, the bracket 2 is a frame structure with four sides that can be disassembled.

[0026] Further, the bracket 2 includes a transverse frame 23 and a longitudinal frame 24; the vertical surface 21 of the transverse frame 23 is a straight plate structure; the vertical surface 21 of the longitudinal frame 24 is a U-shaped plate structure, the longitudinal frame 24 is clamped between the transverse frames 23, and the longitudinal frame 24 and the transverse frame 23 are fixed by bolts 25. The contact surface between the U-shaped plate structure and the straight plate structure is increased, and such a structure is more stable, and even if only one of the longitudinal frames 24 is removed, the other three sides are still firmly connected.

[0027] In the specific implementation, steel plates are used to form the shape. In order to achieve turnover, it is divided into 4 blocks and connected by bolts 25. First, the blocks are placed on the cup mouth of the receiving cup 1 and assembled and connected. The center column is hoisted into place by a gantry crane, and the position of the threaded rod 4 is adjusted in advance according to the design position of the center column, so that the position deviation of the center column inserted into the cup mouth is small. Through the lead adjustment of the design position of the center column on the cup mouth, the center column is pushed by the threaded rod 4 to make its position meet the design requirements, and the threaded rods 4 in all directions are tightened. Finally, the grouting material is used to backfill the cup mouth and fix it. After reaching the strength, the bracket 2 is disassembled and transported to the next position.

[0028] The utility model can adapt to the situation that the center column assembly trolley of the fully prefabricated assembled station cannot realize the longitudinal adjustment function of the center column. The production and operation are simple and easy, and the utility model can be circulated and reused, thereby improving the prefabrication assembly efficiency.

[0029] Obviously, the above-described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

Claims

1. A fine-adjusting fixing device for a prefabricated column receiving cup mouth, characterized in that: The invention comprises a receiving cup (1) having a regular trapezoidal shape and an inverted trapezoidal receiving slot therein; the fine adjustment fixing device is arranged at the cup mouth of the receiving cup (1), and the fine adjustment fixing device comprises a bracket (2), a positioning nut (3) and a threaded rod (4); the bracket (2) comprises a vertical surface (21) and a trapezoidal groove (22); a positioning nut (3) is fixed on the vertical surface (21) of the bracket (2); a threaded rod (4) is arranged inside the positioning nut (3); the threaded rod (4) is arranged to vertically penetrate the vertical surface (21); the trapezoidal groove (22) is arranged below the vertical surface (21), and the inner surface of the trapezoidal groove (22) matches the outer contour of the cup mouth of the receiving cup (1).

2. A fine-adjusting fixing device for a prefabricated column receiving cup according to claim 1, characterized in that: The vertical surface (21) of the support (2) forms a rectangular frame structure.

3. A fine adjustment fixing device for a prefabricated column receiving cup opening according to claim 2, characterized in that: The bracket (2) is a frame structure with four sides that can be disassembled.

4. A fine adjustment fixing device for a prefabricated column receiving cup mouth according to claim 3, characterized in that: The bracket (2) comprises a transverse frame (23) and a longitudinal frame (24); the vertical surface (21) of the transverse frame (23) is a straight plate structure; the vertical surface (21) of the longitudinal frame (24) is a U-shaped plate structure; the longitudinal frame (24) is clamped between the transverse frames (23); and the longitudinal frame (24) and the transverse frame (23) are fixed by bolts (25).

Images