Steel bar positioning support used in large hollow box girder

Abstract

The utility model belongs to the technical field of bridge construction, and particularly provides a steel bar positioning support used in a large hollow box girder, which comprises a plurality of fixing frames arranged at intervals along the length direction of the box girder, each fixing frame comprises vertical bars and a positioning mechanism, and the two vertical bars are vertically mounted at the bottom of the box girder. The multiple positioning mechanisms are arranged in the length direction of the vertical ribs at intervals and slidably connected to the two vertical ribs through the connecting mechanisms, each positioning mechanism comprises a rigid mounting plate, a sliding rail, multiple sliding blocks and multiple clamping assemblies used for fixing the steel bars, one side of the mounting plate is slidably connected with the two vertical ribs through the connecting mechanisms, the sliding rail is located between the two connecting mechanisms, and the sliding blocks are located between the two connecting mechanisms. The sliding rail is rotationally connected with the mounting plate, the multiple sliding blocks are slidably mounted in the sliding rail, and the clamping assembly is rotationally connected with the sliding blocks through pin shafts. Through the arrangement of the mounting plate, the sliding rail, the multiple sliding blocks and the multiple clamping assemblies, steel bars at any angle can be conveniently mounted and positioned, and the distance between every two adjacent steel bars can be freely adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and relates to a steel bar positioning bracket used in a large hollow box beam. Background Art

[0002] In the construction of bridges and building complexes, the construction of large hollow box girders is a key link. The accurate arrangement and fixation of steel bars are essential to ensure the strength and stability of the structure. Traditional steel bar positioning methods often rely on manual operations, which are not only inefficient, but also difficult to ensure the precise position of the steel bars, thus affecting the safety and reliability of the entire structure. Utility Model Content

[0003] In view of the technical problems in the prior art, the utility model provides a steel bar positioning bracket for a large hollow box girder, comprising a plurality of fixing frames arranged at intervals along the length direction of the box girder, the fixing frames comprising two vertical bars and a plurality of positioning mechanisms arranged opposite to each other, the two vertical bars being vertically installed at the bottom of the box girder, the plurality of positioning mechanisms being arranged at intervals along the length direction of the vertical bars, and the positioning mechanisms being slidably connected to the two vertical bars through a connecting mechanism, the positioning mechanisms comprising a rigid mounting plate, a slide rail, a plurality of sliders and a plurality of clamping assemblies for fixing the steel bars, one side of the mounting plate being slidably connected to the two vertical bars through a connecting mechanism, the slide rail being located between the two connecting mechanisms, the slide rail being rotatably connected to the mounting plate, and the rotation direction is along the direction of the plane where the cross section of the mounting plate is located, the plurality of sliders being slidably installed in the slide rail, the plurality of sliders corresponding one-to-one to the plurality of clamping assemblies, and the clamping assembly being rotatably connected to the slider through a pin shaft, and the rotation direction is along the direction of the plane where the vertical slider is located.

[0004] Furthermore, the slide rail is provided with a first scale dimension line along its length direction, and the first scale dimension line is located on one side of the slider.

[0005] Furthermore, a second scale dimension line is provided on the vertical rib, and the second scale dimension line is movably bonded to the vertical rib.

[0006] Furthermore, the clamping assembly includes a connecting block and an adjusting mechanism, the connecting block is rotatably connected to the slider via a pin shaft, the connecting block is provided with an arc-shaped clamping groove with an opening on one side, and the opening is located at the end away from the pin shaft, the arc-shaped clamping groove is provided with a receiving groove, and the receiving groove is located on one side of the opening, the adjusting mechanism is installed in the receiving groove, and a clamping space for fixing the steel bar is formed between the adjusting mechanism and the arc-shaped clamping groove.

[0007] Furthermore, the adjustment mechanism includes an arc-shaped plate, a telescopic rod and a spring that match the arc-shaped clamping groove. The arc-shaped plate is connected to the bottom of the accommodating groove through the telescopic rod. The spring is sleeved outside the telescopic rod, and the two ends of the spring are respectively abutted against the arc-shaped plate and the bottom of the accommodating groove. Under the action of the elastic force of the spring, the arc-shaped plate slides out of the accommodating groove and abuts against the steel bar.

[0008] Furthermore, the rotation angle of the slide rail and the mounting plate is -90° to 90°. When the rotation angle is 0°, the axial direction of the arc-shaped clamping groove is the vertical direction. When the rotation angle is -90° or 90°, the axial direction of the arc-shaped clamping groove is the length direction of the box beam.

[0009] Furthermore, the connecting mechanism includes a U-shaped screw, a connecting plate and a locking nut. The U-shaped screw is fixedly mounted on the mounting plate with the opening of the U-shaped screw facing outward. The connecting plate is sleeved on one end of the U-shaped screw close to the opening. The connecting plate cooperates with the U-shaped screw and is fixed by two locking nuts.

[0010] Furthermore, the fixing frame also includes a plurality of bracket diagonal braces, which are symmetrically installed on both sides of the vertical reinforcement, and one end of the bracket diagonal brace is fixedly connected to the vertical reinforcement, and the other end is fixedly connected to the bottom of the box beam.

[0011] Beneficial effects:

[0012] 1. In the utility model, the setting of a fixing frame including two relatively arranged vertical bars and multiple positioning mechanisms can facilitate the installation of steel bars in large hollow box girders. Combined with the setting of a rigid mounting plate, a slide rail, multiple sliders and multiple clamping assemblies, it is convenient to position and fix steel bars at any angle, and the spacing between two adjacent steel bars can be freely adjusted to ensure the installation accuracy of the steel bars and improve the installation efficiency. Specifically, when in use, firstly, an appropriate number of mounting plates are connected to the vertical bars through a connecting mechanism, and the spacing between adjacent mounting plates is adjusted and locked and fixed. This setting can ensure the installation accuracy in the vertical direction, and then the axial direction of the clamping assembly is adjusted according to the orientation of the steel bars to be installed, and then the spacing between adjacent clamping assemblies is adjusted by sliding the slider. This setting can ensure the installation accuracy in the horizontal direction. Finally, the mounting plate is removed after the steel bars are fixed for easy reuse. The vertical bars are vertically placed bars of large hollow box girders and do not need to be disassembled. Combined with the setting that the mounting plate is rigid, the overall stability between the two vertical bars can be enhanced.

[0013] 2. In the utility model, by setting the first scale dimension line, the distance between two adjacent clamping components can be accurately adjusted, thereby improving the installation accuracy in the horizontal direction; by setting the second scale dimension line, the distance between two adjacent mounting plates can be accurately adjusted, thereby improving the installation accuracy in the vertical direction; combined with the setting of the second scale dimension line and the active bonding of the vertical ribs, the second scale dimension line can be easily disassembled and assembled, thereby facilitating reuse.

[0014] 3. In the utility model, the arc-shaped clamping groove on the connecting block and the adjustment mechanism including the arc-shaped plate, the telescopic rod and the spring are arranged to improve the clamping effect of the steel bars, prevent the steel bars and the connecting block from slipping, and at the same time meet the installation of steel bars of different diameters. Specifically, the buffering of the spring can adaptively adjust the size of the clamping space, which is suitable for the installation of steel bars of different diameters, and the elastic force of the spring can be used to press the steel bars.

[0015] 4. In the present invention, the rotation angle of the slide rail and the mounting plate is -90° to 90° and the rotation angle corresponds to the axial direction of the arc-shaped clamping groove, which can facilitate the rapid positioning of part of the installation angle of the steel bar, further improving the installation efficiency.

[0016] 5. In the present invention, the U-shaped screw, the connecting plate and the locking nut are arranged to facilitate the disassembly and assembly of the mounting plate and the vertical ribs, and can be used to fix vertical ribs of different diameters.

[0017] 5. In the present invention, by setting a plurality of support diagonal braces, the stability and strength between the vertical reinforcement and the box beam can be improved, and the overall stability between the two vertical reinforcements can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the clamping assembly of the utility model when the axis is in the vertical direction;

[0020] Figure 2 This is a schematic diagram of the overall structure of the clamping assembly of the utility model when the axis is in the horizontal direction;

[0021] Figure 3 for Figure 1 Detailed structural diagram at A in the middle;

[0022] Figure 4This is a schematic diagram of the installation structure when the clamping assembly of the utility model is rotated to another direction;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0024] Figure 6 for Figure 1 Detailed structural diagram at B in the middle;

[0025] Figure 7 It is a schematic diagram of the installation structure of multiple fixing frames of the utility model.

[0026] Description of reference numerals:

[0027] 1. Fixed frame; 2. Vertical ribs; 3. Mounting plate; 4. Slide rails; 5. Clamping assembly; 51. Connecting block; 511. Arc-shaped clamping groove; 52. Adjusting mechanism; 521. Arc-shaped plate; 522. Telescopic rod; 523. Spring; 6. Connecting mechanism; 61. U-shaped screw; 62. Connecting plate; 63. Locking nut; 7. Bracket diagonal support. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] The utility model provides a steel bar positioning bracket for large hollow box beams, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, it includes a plurality of fixing frames 1 arranged at intervals along the length direction of the box beam, the fixing frame 1 includes two vertical bars 2 and a plurality of positioning mechanisms arranged opposite to each other, the two vertical bars 2 are vertically installed at the bottom of the box beam, the plurality of positioning mechanisms are arranged at intervals along the length direction of the vertical bars 2, and the positioning mechanisms are slidably connected to the two vertical bars 2 through a connecting mechanism 6, the positioning mechanism includes a rigid mounting plate 3, a slide rail 4, a plurality of sliders and a plurality of clamping components 5 for fixing steel bars, one side of the mounting plate 3 is slidably connected to the two vertical bars 2 through a connecting mechanism 6, the slide rail 4 is located between the two connecting mechanisms 6, the slide rail 4 is rotatably connected to the mounting plate 3, and the rotation direction is along the cross section of the mounting plate 3 In the direction of the plane, preferably, the rotation angle of the slide rail 4 and the mounting plate 3 is -90° to 90°, when the rotation angle is 0°, the axial direction of the arc-shaped clamping groove 511 is the vertical direction, when the rotation angle is -90° or 90°, the axial direction of the arc-shaped clamping groove 511 is the length direction of the box beam, and multiple sliders are slidably installed in the slide rail 4, multiple sliders correspond to multiple clamping assemblies 5 one by one, and the clamping assemblies 5 are rotatably connected to the sliders through pins, and the rotation direction is along the direction of the plane perpendicular to the slider. Limiting structures can be set at common angle positions between the slide rail 4 and the mounting plate 3, and between the clamping assemblies 5 and the sliders to facilitate limiting fixation and improve installation efficiency.

[0035] In this embodiment, by setting up the fixing frame 1 including two relatively arranged vertical bars 2 and a plurality of positioning mechanisms, it is possible to conveniently install the steel bars in the large hollow box beam. Combined with the setting of the rigid mounting plate 3, the slide rail 4, a plurality of slide blocks and a plurality of clamping components 5, it is possible to conveniently position and fix the steel bars at any angle, and the spacing between two adjacent steel bars can be freely adjusted to ensure the installation accuracy of the steel bars and improve the installation efficiency. Specifically, when in use, firstly, an appropriate number of mounting plates 3 are connected to the vertical bars 2 through the connecting mechanism 6, and the spacing between adjacent mounting plates 3 is adjusted and locked. Tightly fixed, this setting can ensure the installation accuracy in the vertical direction, wherein the number of mounting plates 3 is at least two, at least one of which is used to strengthen the overall stability between the two vertical bars 2, and the others are used to connect and fix the steel bars, and then adjust the axial direction of the clamping assembly 5 according to the orientation of the steel bars to be installed, and then adjust the spacing between adjacent clamping assemblies 5 by sliding the slider, this setting can ensure the installation accuracy in the horizontal direction, and finally remove the mounting plate 3 after fixing the steel bars for reuse, wherein the vertical bars 2 are vertically placed bars of large hollow box girders and do not need to be disassembled.

[0036] In the present invention, preferably, Figure 1 , Figure 2As shown, the slide rail 4 is provided with a first scale dimension line along its length direction, and the first scale dimension line is located on one side of the slider; the vertical rib 2 is provided with a second scale dimension line, and the second scale dimension line is movably bonded to the vertical rib 2.

[0037] In this embodiment, by setting the first scale dimension line, the distance between two adjacent clamping components 5 can be accurately adjusted to improve the installation accuracy in the horizontal direction; by setting the second scale dimension line, the distance between two adjacent mounting plates 3 can be accurately adjusted to improve the installation accuracy in the vertical direction; combined with the setting of the second scale dimension line and the vertical rib 2 being movablely bonded, the second scale dimension line can be easily disassembled and assembled for reuse.

[0038] In the present invention, preferably, Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the clamping assembly 5 includes a connecting block 51 and an adjusting mechanism 52, the connecting block 51 is rotatably connected to the slider through a pin shaft, the connecting block 51 is provided with an arc-shaped clamping groove 511 with an opening on one side, and the opening is located at the end away from the pin shaft, the arc-shaped clamping groove 511 is provided with a receiving groove, and the receiving groove is located on one side of the opening, the adjusting mechanism 52 is installed in the receiving groove, and a clamping space for fixing the steel bar is formed between the adjusting mechanism 52 and the arc-shaped clamping groove 511; the adjusting mechanism 52 includes an arc-shaped plate 521, a telescopic rod 522 and a spring 523 matching the arc-shaped clamping groove 511, the arc-shaped plate 521 is connected to the bottom of the receiving groove through the telescopic rod 522, the spring 523 is sleeved on the outside of the telescopic rod 522, and the two ends of the spring 523 are respectively abutted against the arc-shaped plate 521 and the bottom of the receiving groove, and the arc-shaped plate 521 slides out of the receiving groove and abuts against the steel bar under the elastic force of the spring 523.

[0039] In this embodiment, by providing the arc-shaped clamping groove 511 on the connecting block 51 and the adjusting mechanism 52 including the arc-shaped plate 521, the telescopic rod 522 and the spring 523, the clamping effect on the steel bars can be improved, and the steel bars and the connecting block 51 can be prevented from slipping off. At the same time, the installation of steel bars with different diameters can be satisfied. Specifically, the buffering of the spring 523 can adaptively adjust the size of the clamping space, which is suitable for the installation of steel bars with different diameters. The elastic force of the spring 523 can be used to tighten the steel bars.

[0040] In the present invention, preferably, Figure 1 , Figure 2 and Figure 6As shown, the connecting mechanism 6 includes a U-shaped screw 61, a connecting plate 62 and a locking nut 63. The U-shaped screw 61 is fixedly mounted on the mounting plate 3, and the opening of the U-shaped screw 61 faces outward. The connecting plate 62 is sleeved on one end of the U-shaped screw 61 close to the opening. The connecting plate 62 cooperates with the U-shaped screw 61 and is fixed by two locking nuts 63.

[0041] In this embodiment, the U-shaped screw 61, the connecting plate 62 and the locking nut 63 are provided to facilitate assembly and disassembly of the mounting plate 3 and the vertical rib 2, and can be used to fix vertical ribs 2 of different diameters.

[0042] In the present invention, preferably, Figure 1 , Figure 2 As shown, the fixing frame 1 also includes a plurality of bracket diagonal braces 7, which are symmetrically installed on both sides of the vertical reinforcement 2, and one end of the bracket diagonal brace 7 is fixedly connected to the vertical reinforcement 2, and the other end is fixedly connected to the bottom of the box beam.

[0043] In this embodiment, by disposing a plurality of support diagonal braces 7 , the stability and strength between the vertical reinforcement 2 and the box beam can be improved, and the overall stability between the two vertical reinforcements 2 can be further enhanced.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A steel bar positioning bracket for a large hollow box girder, comprising a plurality of fixing frames (1) arranged at intervals along the length direction of the box girder, the fixing frames (1) comprising two vertical bars (2) arranged opposite to each other and a plurality of positioning mechanisms, the two vertical bars (2) being vertically mounted on the bottom of the box girder, the plurality of positioning mechanisms being arranged at intervals along the length direction of the vertical bars (2), and the positioning mechanisms being slidably connected to the two vertical bars (2) via a connecting mechanism (6), characterized in that: The positioning mechanism comprises a rigid mounting plate (3), a slide rail (4), a plurality of sliders and a plurality of clamping assemblies (5) for fixing the steel bars. One side of the mounting plate (3) is slidably connected to the two vertical bars (2) via a connecting mechanism (6). The slide rail (4) is located between the two connecting mechanisms (6). The slide rail (4) is rotatably connected to the mounting plate (3), and the rotation direction is along the direction of the plane where the cross section of the mounting plate (3) is located. The plurality of sliders are slidably installed in the slide rail (4). The plurality of sliders correspond to the plurality of clamping assemblies (5) one by one. The clamping assemblies (5) are rotatably connected to the slider via a pin shaft, and the rotation direction is along the direction of the plane where the vertical slider is located.

2. A steel bar positioning bracket for use in a large hollow box girder according to claim 1, characterized in that: The slide rail (4) is provided with a first scale dimension line along its length direction, and the first scale dimension line is located on one side of the slide block.

3. A steel bar positioning bracket for use in a large hollow box girder according to claim 1 or 2, characterized in that: A second scale dimension line is provided on the vertical rib (2), and the second scale dimension line is movably bonded to the vertical rib (2).

4. A steel bar positioning bracket for use in a large hollow box girder according to claim 3, characterized in that: The clamping assembly (5) comprises a connecting block (51) and an adjusting mechanism (52); the connecting block (51) is rotatably connected to a slider via a pin shaft; an arc-shaped clamping groove (511) with an opening on one side is provided on the connecting block (51), and the opening is located at an end away from the pin shaft; a receiving groove is provided in the arc-shaped clamping groove (511), and the receiving groove is located on one side of the opening; the adjusting mechanism (52) is installed in the receiving groove; and a clamping space for fixing a steel bar is formed between the adjusting mechanism (52) and the arc-shaped clamping groove (511).

5. The steel bar positioning bracket for use in a large hollow box girder according to claim 4, characterized in that: The adjusting mechanism (52) comprises an arc-shaped plate (521) matched with the arc-shaped clamping groove (511), a telescopic rod (522) and a spring (523); the arc-shaped plate (521) is connected to the bottom of the receiving groove through the telescopic rod (522); the spring (523) is sleeved outside the telescopic rod (522), and two ends of the spring (523) are respectively in contact with the arc-shaped plate (521) and the bottom of the receiving groove; under the elastic force of the spring (523), the arc-shaped plate (521) slides out of the receiving groove and contacts the steel bar.

6. A steel bar positioning bracket for use in a large hollow box girder according to claim 5, characterized in that: The rotation angle between the slide rail (4) and the mounting plate (3) is between -90° and 90°. When the rotation angle is 0°, the axial direction of the arc-shaped clamping groove (511) is in the vertical direction. When the rotation angle is -90° or 90°, the axial direction of the arc-shaped clamping groove (511) is in the length direction of the box beam.

7. The steel bar positioning bracket for use in a large hollow box beam according to claim 1, characterized in that: The connecting mechanism (6) comprises a U-shaped screw (61), a connecting plate (62) and a locking nut (63); the U-shaped screw (61) is fixedly mounted on the mounting plate (3), with the opening of the U-shaped screw (61) facing outward; the connecting plate (62) is sleeved on one end of the U-shaped screw (61) close to the opening; the connecting plate (62) cooperates with the U-shaped screw (61) and is fixed by two locking nuts (63).

8. The steel bar positioning bracket for use in a large hollow box beam according to claim 1, characterized in that: The fixing frame (1) further comprises a plurality of bracket diagonal braces (7), wherein the plurality of bracket diagonal braces (7) are symmetrically mounted on both sides of the vertical rib (2), and one end of the bracket diagonal brace (7) is fixedly connected to the vertical rib (2), and the other end is fixedly connected to the bottom of the box beam.

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