Box girder with adjustable diaphragm

Abstract

The utility model relates to the technical field of box girders, in particular to a box girder with an adjustable diaphragm, which comprises a box girder, reinforcing steel bars and a connecting mechanism, the side wall of the box girder is provided with a slot, a prefabricated member is fixed inside the slot, two ends of the connecting mechanism are respectively fixed with one reinforcing steel bar, and the other end of the reinforcing steel bar is fixed with the prefabricated member. The connecting mechanism comprises a connecting groove, a first connecting piece, a bolt and a sliding block, the connecting groove is formed in the end, fixed to the connecting mechanism, of the steel bar, the first connecting piece is a groove pipe, and the bottom of the sliding block is slidably connected with the top of the first connecting piece; the limiting hole is formed in the top of the first connecting piece, the bolt is arranged in the middle of the sliding block, the bolt is in threaded connection with the sliding block and the limiting hole, the position of the sliding block can be adjusted in the first connecting piece, the bolt is used for fixing the sliding block, and then the sliding block is matched with steel bars of different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of box beams, in particular to a box beam with an adjustable transverse beam. Background Art

[0002] The assembled prestressed concrete small box girder bridge uses cast-in-place cross beams to make multiple small box girders bear the force in space as a whole. The cross beam is an important structural component of the prestressed concrete small box girder bridge that transfers load in the transverse direction of the bridge.

[0003] The Chinese utility model patent with publication number CN219280444U and published on June 30, 2023 discloses a prefabricated small box girder integral cast-in-place transverse beam structure, including a prefabricated small box girder, a cast transverse beam arranged between two adjacent prefabricated small box girders, a prefabricated unit arranged on the side of the prefabricated small box girder, a connecting unit arranged on the prefabricated unit, and a connector arranged between two adjacent prefabricated small box girders and used to connect the two connecting units, the prefabricated unit including a prefabricated groove arranged on the side end of the prefabricated small box girder, a transverse steel bar arranged in the prefabricated small box girder and protruding from the bottom surface of the prefabricated groove, and a prefabricated sleeve arranged in the prefabricated groove and connected to the transverse steel bar.

[0004] The above patent can realize the rapid adjustment of two adjacent steel bars through the connecting unit. However, in actual use, the distance between two adjacent steel bars is different, and it is impossible to adjust the position of the sliding block according to the distance between the steel bars. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a box girder with an adjustable cross beam, which can adjust the position of a sliding block inside a first connecting member and fix the sliding block with bolts to match steel bars of different lengths.

[0006] The utility model provides the following technical solutions:

[0007] A box beam with an adjustable cross beam comprises a box beam, steel bars and a connecting mechanism. A slot is provided on the side wall of the box beam, a prefabricated part is fixed inside the slot, two ends of the connecting mechanism are respectively fixed to a steel bar, and the other end of the steel bar is fixed to the prefabricated part. The connecting mechanism comprises a connecting groove, a first connecting member, a bolt and a sliding block. A connecting groove is provided on the end of the steel bar fixed to the connecting mechanism, the first connecting member is a groove tube, and the bottom of the sliding block is slidably connected to the top of the first connecting member; a limiting hole is provided on the top of the first connecting member, a bolt is arranged in the middle of the sliding block, and the bolt is threadedly connected to the sliding block and the limiting hole.

[0008] Furthermore, the connection mechanism also includes a second connection member and an auxiliary component. The second connection member is fixed to the outer periphery of the first connection member, and both ends of the auxiliary component are respectively fixed to a first connection member.

[0009] Furthermore, the second connecting member is a U-shaped tube, and the openings of the first connecting member and the second connecting member are perpendicular.

[0010] Furthermore, a clamping strip is fixed to the inner wall of the opening of the second connecting member.

[0011] Furthermore, the auxiliary component includes a limiting screw, a connecting block and a fastening nut. The two connecting blocks are respectively fixed to the outer wall of a second connecting member. Both ends of the limiting screw pass through a connecting block respectively. The two fastening nuts are respectively threadedly connected to the two ends of the limiting screw, and the fastening nuts abut against the connecting block.

[0012] Furthermore, a bottom formwork is fixed between the bottom side walls of adjacent box beams.

[0013] The utility model has the following beneficial technical effects:

[0014] 1. The utility model can adjust the position of the sliding block inside the first connecting member, and fix the sliding block with bolts to match steel bars of different lengths.

[0015] 2. The auxiliary component of the utility model can quickly limit the positions of the two second connecting members after the two second connecting members are installed, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 is a structural schematic diagram of the connecting mechanism;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of the middle A area;

[0019] Figure 4 A schematic diagram of the structure of the auxiliary components.

[0020] The reference numerals in the figure are as follows:

[0021] 1. Box girder; 101. Slot; 102. Prefabricated part; 2. Bottom formwork; 3. Rebar; 4. Connecting mechanism; 411. Connecting groove; 412. First connecting part; 413. Clip; 414. Second connecting part; 415. Sliding block; 416. Bolt; 417. Limiting hole; 42. Auxiliary component; 421. Limiting screw; 422. Connecting block; 423. Fastening nut. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-Figure 4 As shown, the box girder of the adjustable cross beam of this embodiment includes a box girder 1, steel bars 3 and a connecting mechanism 4. A slot 101 is provided on the side wall of the box girder 1, a prefabricated part 102 is fixed inside the slot 101, two ends of the connecting mechanism 4 are respectively fixed to a steel bar 3, and the other end of the steel bar 3 is fixed to the prefabricated part 102. The connecting mechanism 4 includes a connecting groove 411, a first connecting member 412, a bolt 416 and a sliding block 415. A connecting groove 411 is provided on the end where the steel bar 3 is fixed to the connecting mechanism 4, the first connecting member 412 is a groove tube, and the bottom of the sliding block 415 is slidably connected to the top of the first connecting member 412; a limiting hole 417 is provided on the top of the first connecting member 412, a bolt 416 is arranged in the middle of the sliding block 415, and the bolt 416 is threadedly connected to the sliding block 415 and the limiting hole 417.

[0025] The utility model can change the position of the sliding block 415 by sliding the sliding block 415, so as to limit the steel bars 3 with different spacings, avoid the situation where the steel bars 3 cannot be normally connected and limited due to different lengths, and improve the scope of application.

[0026] Furthermore, the connecting mechanism 4 further includes a second connecting member 414 and an auxiliary component 42 . The second connecting member 414 is fixed to the outer periphery of the first connecting member 412 , and both ends of the auxiliary component 42 are respectively fixed to a first connecting member 412 .

[0027] Furthermore, the second connecting member 414 is a U-shaped tube, and the openings of the first connecting member 412 and the second connecting member 414 are perpendicular to each other.

[0028] Furthermore, a clamping strip 413 is fixed to the inner wall of the opening of the second connecting member 414 .

[0029] Two clamping strips 413 are symmetrically fixedly connected to the inner side of the second connecting member 414 . The cross-section of the clamping strip 413 is a right-angled trapezoid. The clamping strip 413 is used to limit the first connecting member 412 after it is installed on the inner side of the second connecting member 414 to prevent it from slipping out of the opening of the second connecting member 414 .

[0030] Furthermore, the auxiliary component 42 includes a limiting screw 421, a connecting block 422 and a fastening nut 423. The two connecting blocks 422 are respectively fixed to the outer wall of a second connecting member 414. Both ends of the limiting screw 421 respectively pass through a connecting block 422. The two fastening nuts 423 are respectively threadedly connected to the two ends of the limiting screw 421, and the fastening nuts 423 abut against the connecting block 422.

[0031] When installing the second connecting member 414, the second connecting member 414 is inserted from the side of the first connecting member 412 through the opening, so that the first connecting member 412 is located on the inner side of the second connecting member 414, and the position of the second connecting member 414 is adjusted to drive the two connecting blocks 422 to be located on the same vertical line. By passing the limiting screw 421 through the two through holes from top to bottom, and tightening the fastening nut 423 from the two ends of the limiting screw 421 to make it press against the adjacent connecting block 422, the limiting of the limiting screw 421 can be completed. By limiting the connecting block 422 by the limiting screw 421, the positions of the two second connecting members 414 connected thereto can be limited to avoid rotation during use. The setting of the connecting block 422 can avoid the situation where it is inconvenient to install the limiting screw 421 between the two second connecting members 414 after the two traditional second connecting members 414 are installed in place. The installation method is simple and effectively improves the construction efficiency.

[0032] Furthermore, a bottom formwork 2 is fixed between the bottom side walls of adjacent box beams 1 .

[0033] A casting interval is formed between the two box beams 1 and the bottom formwork 2 for casting the cross beam.

[0034] The method of using the utility model is:

[0035] The position of the sliding block 415 is changed by sliding the sliding block 415. After the sliding block 415 is moved to the desired position, the rotating bolt 416 is inserted into the adjacent limiting hole 417 to complete the limiting of the position of the sliding block 415, thereby preventing the sliding block 415 from being offset during use and maintaining a good use effect, so as to facilitate the limiting of the steel bars 3 with different spacings. When installing the second connecting piece 414, the second connecting piece 414 is inserted from the side of the first connecting piece 412 through the opening, so that the first connecting piece 412 is located on the inner side of the second connecting piece 414, and the limiting screw 421 is passed through the two through holes from top to bottom, and the fastening nut 423 is threadedly tightened from both ends of the limiting screw 421 to make it press against the adjacent connecting block 422, thereby completing the limiting of the limiting screw 421.

[0036] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A box girder with an adjustable transverse beam, comprising a box girder (1), a steel bar (3) and a connecting mechanism (4), wherein a slot (101) is provided on a side wall of the box girder (1), a prefabricated part (102) is fixed inside the slot (101), two ends of the connecting mechanism (4) are respectively fixed to a steel bar (3), and the other end of the steel bar (3) is fixed to the prefabricated part (102), characterized in that: The connecting mechanism (4) comprises a connecting groove (411), a first connecting piece (412), a bolt (416) and a sliding block (415); a connecting groove (411) is provided at one end of the steel bar (3) fixed to the connecting mechanism (4); the first connecting piece (412) is a groove tube; the bottom of the sliding block (415) is slidably connected to the top of the first connecting piece (412); a limiting hole (417) is provided at the top of the first connecting piece (412); the bolt (416) is arranged in the middle of the sliding block (415); the bolt (416) is threadedly connected to the sliding block (415) and the limiting hole (417).

2. The box beam with adjustable cross beam according to claim 1, characterized in that: The connecting mechanism (4) also includes a second connecting member (414) and an auxiliary component (42). The second connecting member (414) is fixed to the outer periphery of the first connecting member (412), and both ends of the auxiliary component (42) are respectively fixed to a first connecting member (412).

3. The box beam with adjustable cross beam according to claim 2, characterized in that: The second connecting member (414) is a U-shaped tube, and the openings of the first connecting member (412) and the second connecting member (414) are perpendicular to each other.

4. The box beam with adjustable cross beam according to claim 2, characterized in that: A clamping strip (413) is fixed to the inner wall of the opening of the second connecting member (414).

5. The box beam with adjustable cross beam according to claim 2, characterized in that: The auxiliary component (42) comprises a limiting screw (421), a connecting block (422) and a fastening nut (423); the two connecting blocks (422) are respectively fixed to the outer wall of a second connecting member (414); the two ends of the limiting screw (421) respectively pass through a connecting block (422); the two fastening nuts (423) are respectively threadedly connected to the two ends of the limiting screw (421); and the fastening nuts (423) are in contact with the connecting block (422).

6. The box beam with adjustable cross beam according to claim 1, characterized in that: A bottom template (2) is fixed between the bottom side walls of adjacent box beams (1).

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