Novel vent hole forming tool for railway simply-supported box girder

By using a combined structure of high-density rubber rods and reinforced steel rods in the ventilation hole forming tooling of railway simply supported box girders, the problems of movement and collapse of the ventilation holes during the pouring process were solved, and the dense and stable forming of the ventilation holes was achieved.

CN223442485UActive Publication Date: 2025-10-17CHINA RAILWAY 24TH BUREAU GRP BRIDGE & CONSTR CO LTD +1
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Patent Information

Application Number
CN202423035448.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-10-17
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

The ventilation holes of existing railway simply supported box girders are prone to movement during the pouring process, causing blockage and collapse of the ventilation holes, affecting the ventilation effect and causing quality defects.

Method used

A hole-forming tooling is designed, which includes an inner formwork and an outer formwork of a box beam. Both the inner formwork and the outer formwork are provided with mounting holes. A hole-forming mechanism is composed of a high-density rubber rod and a reinforced steel rod, which is fixed by a pressing component and a rotating reinforcement component to ensure that the rubber rod does not move and is easy to pull out after the concrete has finally set.

Benefits of technology

Effectively prevent ventilation holes from being blocked and collapsed, ensure the density and ventilation effect of ventilation holes, and improve molding quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223442485U_ABST
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Abstract

The utility model discloses a novel railway simply-supported box girder vent hole forming tool which comprises a box girder vent hole forming tool body, the box girder vent hole forming tool body comprises a box girder inner mold and a box girder outer mold, and mounting holes are formed in the box girder inner mold and the box girder outer mold. The mounting holes, the box girder inner mold and the box girder outer mold are of an integrated structure. By designing the box girder hole forming mechanism, after a box girder inner mold and a box girder outer mold are both fixedly installed, high-density rubber rods penetrate through the interiors of installation holes, reinforcing steel rods penetrate through through holes and are installed for rigidity reinforcement, and when concrete is poured into the box girder inner mold and the box girder outer mold to form the railway simply-supported box girder, the concrete is poured into the box girder inner mold and the box girder outer mold to form the railway simply-supported box girder. The high-density rubber rod can be pulled out after concrete is finally set, the high-density rubber rod contracts due to stress and is easy to pull out, hole collapse and non-compactness of the concrete surface are not prone to being caused, and the ventilation effect is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to box beam vent forming frock technical field, concretely relates to a railway simply supported box beam vent novel hole forming frock. BACKGROUND

[0002] The railway simply supported box beam vent is the hole that sets up for the convection of the air in the box and the air outside the box, the air quality measure that guarantees the equipment management personnel walks in the box, ensures the personal safety, and needs to be vented when the railway simply supported box beam is casted and formed, is usually casted and formed through box beam vent forming frock;

[0003] The existing railway simply supported box beam vent all adopts seamless steel pipe hole forming, when the railway simply supported box beam formwork is installed, the seamless steel pipe traverses the outer form, the end of seamless pipe is closely attached to the inner form, when the railway simply supported box beam is casted and formed, the seamless steel pipe is easy to shift, the end of seamless pipe is not closely attached to the inner form, leading to the blockage of vent, finally after hole forming, the seamless pipe is pulled out before the initial setting of box beam concrete and final setting, and the hole is easy to collapse, resulting in that the vent concrete is not dense, ventilation is poor, and there is quality defect, thereby affecting the effect of forming frock in the hole forming of railway simply supported box beam vent. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a railway simply supported box beam vent novel hole forming frock to solve the problem that when the railway simply supported box beam formwork is installed, the seamless steel pipe traverses the outer form, the end of seamless pipe is closely attached to the inner form, when the railway simply supported box beam is casted and formed, the seamless steel pipe is easy to shift, the end of seamless pipe is not closely attached to the inner form, leading to the blockage of vent, finally after hole forming, the seamless pipe is pulled out before the initial setting of box beam concrete and final setting, and the hole is easy to collapse, resulting in that the vent concrete is not dense, ventilation is poor, and there is quality defect.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a railway simply supported box beam vent novel hole forming frock, including box beam vent forming frock main part, the box beam vent forming frock main part includes box beam inner form and box beam outer form, the inside of box beam inner form and box beam outer form all is set up with the mounting hole, and the mounting hole and box beam inner form and box beam outer form are integral type structure, still be provided with on the box beam vent forming frock main part:

[0006] The box beam hole forming mechanism, and the box beam hole forming mechanism includes the novel hole forming assembly arranged in the inside of mounting hole, the inside of novel hole forming assembly is provided with the reinforcing assembly, and the one end of reinforcing assembly is closely attached to the surface of box beam inner form with the end of novel hole forming assembly and is provided with the press-fit mounting assembly;

[0007] The reinforcing fixing mechanism comprises a pressing assembly arranged at the connecting position of the new hole forming assembly and the reinforcing assembly, and the surface of the pressing assembly is arranged with a rotating reinforcing assembly at the other end of the reinforcing assembly.

[0008] Preferably, the new hole forming assembly comprises a high-density rubber rod clamped and installed at the connecting position of the box girder inner mold and the box girder outer mold through the mounting hole, and the end of the high-density rubber rod extends outside the box girder inner mold and the box girder outer mold.

[0009] Preferably, the reinforcing assembly comprises a through hole integrally formed at the middle position inside the high-density rubber rod, and the inside of the through hole is penetrated by a reinforcing steel rod.

[0010] Preferably, the pressing and clamping assembly comprises a connecting pressing disc welded at one end of the reinforcing steel rod, the inner surface edge of the connecting pressing disc is provided with a clamping groove, the surface of the box girder inner mold at the edge of the mounting hole is welded with an annular pressing plate, and the surface of the box girder outer mold at the edge of the mounting hole is welded with an outer mold extension ring.

[0011] Preferably, the clamping groove and the connecting pressing disc are in an integral structure, and the end of the annular pressing plate is clamped with the inside of the clamping groove.

[0012] Preferably, the pressing assembly comprises a threaded structure arranged at the other end of the reinforcing steel rod, and a pressing and clamping cover is clamped and installed at the end of the high-density rubber rod and the outer surface of the reinforcing steel rod.

[0013] Preferably, the rotating reinforcing assembly comprises a fixing nut and a locking nut rotatably fixed on the outer surface of the reinforcing steel rod through the threaded structure, and the surfaces of the fixing nut and the pressing and clamping cover are in extrusion contact.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] Through the design of the box girder hole forming mechanism, the box girder inner mold and the box girder outer mold can be fixed and installed, the high-density rubber rod is penetrated in the inside of the mounting hole, the reinforcing steel rod is penetrated in the through hole and is installed to reinforce the rigidity, when the concrete is poured and formed into the railway simply supported box girder in the inside of the box girder inner mold and the box girder outer mold, the high-density rubber rod is prevented from moving and blocking the hole during pouring, and the high-density rubber rod is pulled out after the concrete is finally cured, the high-density rubber rod is easily pulled out due to the stress shrinkage, the hole is not easily collapsed, and the concrete surface is not easily incompact, the forming effect of the box girder ventilation hole forming tool body on the railway simply supported box girder ventilation hole is improved, and the ventilation effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic view of the utility model;

[0017] Figure 2The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows

[0018] Figure 3 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows Figure 1 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows

[0019] Figure 4 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows

[0020] Figure 5 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows Figure 1 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows

[0021] Figure 6 The utility model discloses a high density rubber stick, through hole and reinforced steel stick structure schematic diagram shows

[0022] In the drawing: 100, box beam ventilation hole forming tool main body, 101, box beam inner die, 102, box beam outer die, 103, mounting hole, 1031, high density rubber stick, 1032, through hole, 1033, connecting pressure disc, 1034, reinforced steel stick, 1035, annular pressing plate, 1036, outer die extension ring, 1037, clamping groove, 104, tight pressing fixed cover, 1041, screw structure, 1042, fixed nut, 1043, locking nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: a new hole forming tool of railway simply supported box beam ventilation hole, including box beam ventilation hole forming tool main body 100, box beam ventilation hole forming tool main body 100 includes box beam inner die 101 and box beam outer die 102, the inside of box beam inner die 101 and box beam outer die 102 is all set with mounting hole 103, and mounting hole 103 and box beam inner die 101 and box beam outer die 102 are all integral structure, box beam ventilation hole forming tool main body 100 still be provided with:

[0025] The box girder hole forming mechanism is provided with a new hole forming assembly inside the mounting hole 103, the inside of the new hole forming assembly is provided with a reinforcing assembly, one end of the reinforcing assembly is located on the surface of the box girder inner mold 101, and the surface of the box girder inner mold 101 is provided with a pressing mounting assembly. When the railway simply supported box girder is formed into a ventilation hole, the box girder hole forming mechanism is installed inside the mounting hole 103 to form the ventilation hole, so that the high-density rubber rod 1031 does not move during pouring to block the hole, and the problems of hole collapse and non-compactness of the concrete surface during pulling out are solved, and the ventilation effect is ensured.

[0026] In order to facilitate the formation of a ventilation hole in a railway simply supported box girder by the new hole forming assembly, preferably, the new hole forming assembly comprises a high-density rubber rod 1031 clamped and mounted at the connection between the box girder inner mold 101 and the box girder outer mold 102 through the mounting hole 103, and the end of the high-density rubber rod 1031 extends outside the box girder inner mold 101 and the box girder outer mold 102, so as to facilitate the installation of the high-density rubber rod 1031 between the box girder inner mold 101 and the box girder outer mold 102 to form a ventilation hole, and ensure that the high-density rubber rod 1031 does not move during pouring to block the hole, and solve the problems of hole collapse and non-compactness of the concrete surface during pulling out.

[0027] In order to facilitate the reinforcement of the high-density rubber rod 1031 by the reinforcing assembly, the high-density rubber rod 1031 is not easy to deform and move during pouring, and the reinforcing assembly comprises a through hole 1032 integrally formed at the middle position inside the high-density rubber rod 1031, and a reinforcing steel rod 1034 is penetrated inside the through hole 1032, so as to facilitate the installation of the reinforcing steel rod 1034 inside the high-density rubber rod 1031 through the through hole 1032 to reinforce the high-density rubber rod 1031 to form a ventilation hole.

[0028] In order to facilitate the reinforcement and installation of the high-density rubber rod 1031 and the reinforcing steel rod 1034 after being closed by the pressing mounting assembly, the pressing mounting assembly comprises a connecting pressure disc 1033 welded and fixed at one end of the reinforcing steel rod 1034, a clamping groove 1037 is formed in the edge of the inner surface of the connecting pressure disc 1033, and an annular pressure plate 1035 is welded on the surface of the box girder inner mold 101 at the edge of the mounting hole 103, so that the reinforcing steel rod 1034 is penetrated inside the through hole 1032, and the connecting pressure disc 1033 is closed on the surface of the annular pressure plate 1035 through the clamping groove 1037 for clamping installation, so as to facilitate tight fixing, and an outer mold extension ring 1036 is welded on the surface of the box girder outer mold 102 at the edge of the mounting hole 103, and the other end of the high-density rubber rod 1031 is extended and fixed inside the box girder outer mold 102 through the outer mold extension ring 1036.

[0029] The reinforcing fixing mechanism is arranged at the connection between the new hole forming assembly and the reinforcing assembly end, the surface of the pressing assembly is arranged at the other end of the reinforcing assembly, and the rotating reinforcing assembly is arranged at the surface of the pressing assembly. The reinforcing steel bar 1034 and the high-density rubber bar 1031 are installed, and the reinforcing fixing mechanism is used for reinforcing and fixing the installation. When the concrete is poured and stressed, it is more stable, the hole forming operation is reinforced and fixed, and the box girder ventilation hole forming tool body 100 is improved in the reinforcing and fixing of the railway simply supported box girder ventilation hole forming.

[0030] In order to connect the end of the reinforcing steel bar 1034 and the end of the high-density rubber bar 1031 through the pressing assembly, and facilitate the rotating reinforcing installation, in the embodiment, preferably, the pressing assembly comprises a threaded structure 1041 arranged at the other end of the reinforcing steel bar 1034, and the outer surface of the reinforcing steel bar 1034 is clamped and installed with the pressing fixing cover 104 at the end of the high-density rubber bar 1031. The reinforcing steel bar 1034 can be closed in the end surface of the high-density rubber bar 1031 through the inside of the pressing fixing cover 104, and the closed reinforcing installation is facilitated.

[0031] In order to connect the end of the reinforcing steel bar 1034 and the end of the high-density rubber bar 1031 through the pressing assembly, and facilitate the rotating reinforcing installation, in the embodiment, preferably, the pressing assembly comprises a threaded structure 1041 arranged at the other end of the reinforcing steel bar 1034, and the outer surface of the reinforcing steel bar 1034 is clamped and installed with the pressing fixing cover 104 at the end of the high-density rubber bar 1031. The reinforcing steel bar 1034 can be closed in the end surface of the high-density rubber bar 1031 through the inside of the pressing fixing cover 104, and the closed reinforcing installation is facilitated.

[0032] The working principle and use process of the utility model are: the novel hole forming tool for the railway simply supported box girder ventilation hole, when in use, first, the box girder inner mold 101 and the box girder outer mold 102 are fixedly installed, then the high density rubber stick 1031 is installed in the connecting position of the box girder inner mold 101 and the box girder outer mold 102 by penetrating the inside of the installation hole 103, the reinforcing steel bar 1034 is penetrated into the penetrating hole 1032, the connecting pressure disc 1033 is clamped on the surface of the annular pressure plate 1035 by the clamping groove 1037, and the high density rubber stick 1031 is pressed and installed, which facilitates the rigidity during pouring, and the other end of the high density rubber stick 1031 penetrates the inside of the outer mold extension ring 1036 and extends and closes, so that when the box girder inner mold 101 and the box girder outer mold 102 are used to pour and shape the railway simply supported box girder, the high density rubber stick 1031 does not move and block the hole during pouring, and the high density rubber stick 1031 can be pulled out after the concrete is finally set, the high density rubber stick 1031 is easy to pull out due to stress shrinkage, and the problems of hole collapse and non-dense concrete surface during pulling out are solved, the box girder ventilation hole forming tool main body 100 is improved to improve the ventilation hole forming effect of the railway simply supported box girder, and the ventilation effect is ensured.

[0033] Then when the high density rubber stick 1031 is installed at the connecting position of the box girder inner mold 101 and the box girder outer mold 102 by the installation hole 103, the reinforcing steel bar 1034 is penetrated into the inside of the penetrating hole 1032 and is closed and reinforced after installation, then the other end of the reinforcing steel bar 1034 penetrates the tight pressure fixing cover 104 and is clamped on the end of the high density rubber stick 1031, the fixed nut 1042 is rotated on the surface of the tight pressure fixing cover 104 at the end of the reinforcing steel bar 1034 through the threaded structure 1041, and the surface of the fixed nut 1042 is locked by the rotation locking nut 1043, so that the high density rubber stick 1031 is extruded and reinforced, the installation is more stable during shaping, the concrete pouring is not easy to be unstable during stress, the hole forming operation is reinforced and fixed, and the box girder ventilation hole forming tool main body 100 is improved to improve the reinforcement and fixation of the railway simply supported box girder ventilation hole forming.

[0034] Although the embodiments of the utility model have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel hole-forming tool for railway simply supported box beam ventilation holes, comprising a box beam ventilation hole forming tool body (100), wherein the box beam ventilation hole forming tool body (100) comprises a box beam inner mold (101) and a box beam outer mold (102), wherein the box beam inner mold (101) and the box beam outer mold (102) are both provided with mounting holes (103), and the mounting holes (103) and the box beam inner mold (101) and the box beam outer mold (102) are all integrated structures, and the invention is characterized in that: The box beam ventilation hole forming tool body (100) is further provided with: A box beam hole forming mechanism, comprising a novel hole forming assembly arranged inside a mounting hole (103), a reinforcing assembly being arranged inside the novel hole forming assembly, and a press-fitting mounting assembly being arranged on the surface of a box beam inner mold (101) where one end of the reinforcing assembly and the end of the novel hole forming assembly are located; The reinforcing fixing mechanism includes a pressing component arranged at the connection between the new hole-forming component and the end of the reinforcing component, and a rotating reinforcement component is arranged on the surface of the pressing component at the other end of the reinforcing component.

2. The novel hole-forming tool for ventilation holes of railway simply supported box girders according to claim 1, characterized in that: The novel hole forming assembly comprises a high-density rubber rod (1031) which is mounted at the connection between the box beam inner mold (101) and the box beam outer mold (102) through a mounting hole (103), and the end of the high-density rubber rod (1031) extends outside the box beam inner mold (101) and the box beam outer mold (102).

3. The novel hole-forming tool for ventilation holes of railway simply supported box girders according to claim 2, characterized in that: The reinforcement component comprises a through hole (1032) integrally formed at a middle position inside the high-density rubber rod (1031), and a reinforcement steel rod (1034) penetrates the through hole (1032).

4. The novel hole-forming tool for ventilation holes of a railway simply supported box girder according to claim 3 is characterized by: The press-fit installation assembly comprises a connecting pressure plate (1033) welded and fixed to one end of a reinforcing steel rod (1034); a clamping groove (1037) is provided on the inner surface edge of the connecting pressure plate (1033); an annular pressure plate (1035) is welded on the surface of the box beam inner mold (101) at the edge of the mounting hole (103); and an outer mold extension ring (1036) is welded on the surface of the box beam outer mold (102) at the edge of the mounting hole (103).

5. The novel hole-forming tool for ventilation holes of railway simply supported box girders according to claim 4, characterized in that: The clamping groove (1037) and the connecting pressure plate (1033) are an integrated structure, and the end of the annular pressure plate (1035) is engaged with the interior of the clamping groove (1037).

6. The novel hole-forming tool for ventilation holes of railway simply supported box girders according to claim 3, characterized in that: The pressing assembly includes a threaded structure (1041) opened at the other end of the reinforcing steel rod (1034), and the outer surface of the reinforcing steel rod (1034) is located at the end of the high-density rubber rod (1031) and is clamped and installed with a pressing fixing cover (104).

7. The novel hole-forming tool for ventilation holes of railway simply supported box girders according to claim 6, characterized in that: The rotation reinforcement assembly comprises a fixing nut (1042) and a locking nut (1043) which are rotationally fixed to the outer surface of the reinforcing steel rod (1034) through a threaded structure (1041), and the fixing nut (1042) is in compression contact with the surface of the pressing fixing cover (104).