Prefabricated box girder inner mold structure

Abstract

The utility model discloses an internal mold structure of a prefabricated box girder, which relates to the field of internal molds of prefabricated box girders, and comprises a plurality of internal mold frames which are mutually butted end to end, two adjacent internal mold frames are clamped through a butting mechanism, a framework is welded in the middle of the inner wall of each internal mold frame, the outer wall of each framework is matched with the inner wall of the corresponding internal mold frame, and the internal mold frames are connected with the internal mold frames in a clamped manner. Every two adjacent frameworks are connected through a fixing mechanism. The butt joint mechanism and the fixing mechanism are arranged, so that in the splicing process of the inner formwork, when the splicing dislocation situation occurs, workers can effectively make judgment, reconnection is conducted, and the slurry leakage problem of follow-up pouring is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the inner mould field of prefabricated box girder, concretely is a prefabricated box girder inner mould structure. BACKGROUND

[0002] The mould of prefabricated box girder includes bottom plate, side mould and inner mould (also called core mould), and the above-mentioned components play the role of shaping in the process of prefabricating the connected forming.

[0003] The first inner mould is generally hollow integral structure, and the integral inner mould needs to be replaced as a whole if local depression appears in the use process, therefore, the subsequent improvement is spliced structure, and the replacement can be correspondingly carried out when local damage occurs, but the existing spliced inner mould is prone to misalignment when splicing, and the misalignment cannot be effectively and timely judged, leading to the slurry leakage in the pouring process. UTILITY MODEL CONTENT

[0004] The utility model discloses a prefabricated box girder inner mould structure.

[0005] To achieve the above object, the utility model provides the following technical scheme: a prefabricated box girder inner mould structure, including multiple inner mould frames that are butt-jointed along the head-tail direction, two adjacent inner mould frames are clamped through butt-joint mechanisms, a skeleton is welded in the middle of the inner wall of the inner mould frame, the outer wall of the skeleton is consistent with the inner wall of the inner mould frame, and two adjacent skeletons are connected through fixing mechanisms.

[0006] As a further scheme of the utility model: the butt-joint mechanism includes a butt-joint block integrally formed at one end of the inner mould frame, one butt-joint block includes two butt-joint plates, and the two butt-joint plates have a clamping port therebetween.

[0007] As a further scheme of the utility model: the butt-joint mechanism further includes a butt-joint groove integrally formed at the end of the inner mould frame away from the butt-joint block, and the inner wall of the butt-joint groove is consistent with the outer wall of the butt-joint plate.

[0008] As a further scheme of the utility model: the fixing mechanism includes multiple fixing lugs integrally formed on the inner side of the skeleton, the multiple fixing lugs are equidistantly distributed along the inner wall of the skeleton, and a fixing rod is inserted into the inner wall of the fixing lug.

[0009] As a further scheme of the utility model: the fixing rods connecting two adjacent skeletons are in a staggered distribution state, threaded heads are formed at the two ends of the outer wall of the fixing rod, and locking nuts are threadedly connected to the outer wall of the threaded head.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. By setting up docking and fixing mechanisms, when misalignment occurs during the splicing of the inner mold frame, workers can effectively judge the situation and reconnect it, thus avoiding grout leakage during subsequent pouring. Attached Figure Description

[0012] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0013] Fig. 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0014] Fig. 3 This is a schematic diagram of the connection of the fixing mechanism of this utility model.

[0015] In the diagram: 1. Inner mold frame; 2. Connecting groove; 3. Connecting plate; 4. Frame; 5. Snap-fit ​​interface; 6. Fixing rod; 7. Fixing lug; 8. Threaded head; 9. Locking nut. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figs. 1-3 In this embodiment of the present invention, a precast box girder inner mold structure includes multiple inner mold frames 1 that are connected to each other at the beginning and end. Two adjacent inner mold frames 1 are connected by a docking mechanism. A skeleton 4 is welded to the middle of the inner wall of the inner mold frame 1. The outer wall of the skeleton 4 matches the inner wall of the inner mold frame 1. Two adjacent skeletons 4 are connected by a fixing mechanism.

[0018] In this embodiment: First, multiple inner mold frames 1 are spliced ​​end to end to form an inner mold. During splicing, the snap-fit ​​mechanism at one end of one inner mold frame 1 is connected to the snap-fit ​​mechanism at one end of another inner mold frame 1. After the connection is completed, a fixing mechanism is used to pass through the skeleton 4 inside the two inner mold frames 1. Then the fixing mechanism is locked to complete the fixing of the two inner mold frames 1. The above method can be used to fix them one by one and complete the assembly of the inner mold.

[0019] It should be noted that sealing rings are installed at both ends of the inner mold frame 1. During the assembly of the inner mold frame 1, the sealing rings are deformed under pressure, which can improve the sealing of the docking position and prevent grout leakage.

[0020] Please refer to this carefully. Fig. 1 and Fig. 2The docking mechanism comprises a docking block integrally formed at one end of the inner mold frame 1, one docking block comprises two docking plates 3, the two docking plates 3 have a clamping interface 5 therebetween, and the docking mechanism further comprises a docking groove 2 integrally formed at an end of the inner mold frame 1 away from the docking block, an inner wall of the docking groove 2 is in conformity with an outer wall of the docking plate 3.

[0021] In the embodiment, when splicing, the docking plate 3 at one end of one inner mold frame 1 is aligned with the docking groove 2 at one end of another inner mold frame 1, and then the two ends of the two inner mold frames 1 are pushed to abut, at this time, the docking plate 3 is clamped into the docking groove 2, and the clamping interface 5 is clamped at one end of the other inner mold frame 1, the alignment of the two is completed, and the splicing misalignment of the two adjacent inner mold frames 1 during docking is avoided.

[0022] Please refer to Fig. 3 The fixing mechanism comprises a plurality of fixing lugs 7 integrally formed on the inner side of the framework 4, the plurality of fixing lugs 7 are equidistantly distributed along the inner wall of the framework 4, a fixing rod 6 is inserted into the inner wall of the fixing lug 7, the fixing rods 6 connecting the adjacent two frameworks 4 are in a staggered distribution state, threaded heads 8 are formed at both ends of the outer wall of the fixing rod 6, and locking nuts 9 are threadedly connected to the outer wall of the threaded heads 8.

[0023] In the embodiment, after the splicing of the two adjacent inner mold frames 1 is completed, the fixing rod 6 is inserted into the fixing lug 7, at this time, the fixing rod 6 connecting the two frameworks 4 should be installed with an interval of one fixing lug 7, that is, the above-mentioned staggered distribution, after the insertion of the fixing rod 6 is completed, the locking nuts 9 are respectively screwed on the outer wall of the threaded heads 8, and after the locking nuts 9 are completely locked, one end surface of the locking nut 9 is tightly pressed on the end surface of the fixing lug 7, and the fixing of the inner mold frame 1 is completed.

[0024] During the splicing process, if the splicing misalignment occurs, the front and rear fixing lugs 7 will be misaligned, at this time, the fixing rod 6 cannot be smoothly inserted into the front and rear fixing lugs 7, so that the staff can effectively judge whether the splicing misalignment occurs.

[0025] The above-described is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A prefabricated box girder inner mold structure comprising a plurality of inner mold frames (1) which are connected to each other in a head-to-tail manner, characterized in that, Two adjacent inner mold frames (1) are connected through butt joint mechanism, a skeleton (4) is welded in the middle of the inner wall of the inner mold frame (1), the outer wall of the skeleton (4) is consistent with the inner wall of the inner mold frame (1), and two adjacent skeletons (4) are connected through a fixing mechanism.

2. The precast box girder inner formwork structure according to claim 1, wherein, The butt joint mechanism comprises a butt joint block integrally formed at one end of the inner mold frame (1), one butt joint block comprises two butt joint plates (3), and the two butt joint plates (3) have a clamping port (5) therebetween.

3. The precast box girder inner formwork structure according to claim 2, wherein, The butt joint mechanism further comprises a butt joint groove (2) integrally formed at the end of the inner mold frame (1) away from the butt joint block, and the inner wall of the butt joint groove (2) is consistent with the outer wall of the butt joint plate (3).

4. The precast box girder inner formwork structure according to claim 3, wherein, The fixing mechanism comprises a plurality of fixing lugs (7) integrally formed on the inner side of the skeleton (4), the plurality of fixing lugs (7) are equidistantly distributed along the inner wall of the skeleton (4), and the inner wall of the fixing lug (7) is inserted with a fixing rod (6).

5. The precast box girder inner formwork structure according to claim 4, wherein, The fixing rods (6) connecting two adjacent skeletons (4) are in staggered distribution state, threaded heads (8) are formed at both ends of the outer wall of the fixing rod (6), and the outer wall of the threaded head (8) is threadedly connected with a locking nut (9).

Images