Railway precast beam bridge floor drain hole pre-burying tool

Abstract

The utility model discloses a railway precast beam bridge floor drain hole pre-burying tool which comprises a steel pipe detachably assembled in a drain hole, the drainage end, corresponding to the drain hole, of the steel pipe is closed, and the water inlet end, corresponding to the drain hole, of the steel pipe is detachably provided with an iron cover. In the construction project of reserving the drainage hole in the precast beam bridge floor, the problem of deformation of the hole channel of the drainage hole is effectively avoided by utilizing the characteristic of high strength of the steel pipe, so that the hole forming quality of the drainage hole is further guaranteed, and the steel pipe is also matched with the additionally arranged iron cover to form a closed protection body; and concrete is effectively prevented from entering the steel pipe in the construction process, and the steel pipe can be conveniently disassembled in the later period.

Description

Technical Field

[0001] The utility model relates to the field of construction technology of precast beam bridge deck drain holes, in particular to a pre-embedded tool for precast beam bridge deck drain holes of railways. Background Technique

[0002] The main function of the precast beam bridge deck drain hole is to drain the rainwater and other water accumulated on the bridge surface. In the rainy season or humid environment, the water on the bridge surface is very easy to accumulate. If the accumulated water is too much, it will not only easily corrode the bridge and cause structural damage, but also affect the normal passage of vehicles. The design of the drain hole is to let this water drain smoothly to reduce water accumulation, thereby protecting the bridge structure and normal vehicle passage.

[0003] In the current construction of precast beam bridge deck drain hole reservation, it is necessary to pre-embed PVC drain pipes in advance. However, during the concrete pouring process, the PVC drain pipes are easily damaged, resulting in deformation of the drain hole channels, and the concrete is easily introduced into the PVC drain pipes, causing difficulties in disassembling the PVC drain pipes in the later stage, seriously affecting the construction efficiency of precast beams. Content of the Utility Model

[0004] The utility model provides an anti-blocking drain pipe to solve the above technical problems.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] A pre-embedded tool for precast beam bridge deck drain holes of railways, including a steel pipe detachably assembled in the drain hole. The drainage end of the steel pipe corresponding to the drain hole is closed, and an iron cover is detachably provided at the water inlet end corresponding to the drain hole. In the construction project of precast beam bridge deck drain hole reservation, the problem of deformation of the drain hole channel is effectively avoided by using the characteristic of the large strength of the steel pipe, and the steel pipe and the iron cover cooperate with each other to form a sealed protection body, effectively avoiding the situation that concrete enters the interior of the steel pipe during the construction process, and ensuring the steel pipe.

[0007] Preferably, a threaded rod is provided inside the steel pipe. The threaded rod passes through the water inlet end of the steel pipe corresponding to the drain hole and is detachably connected to the iron cover. Specifically, a circular ring is fixed on the closed end of the steel pipe. The threaded rod is "L"-shaped, one end of which is detachably inserted into the circular ring, and the other end is used to connect the iron cover, which is convenient for the disassembly and assembly of the threaded rod. Among them, a through hole for the threaded rod to pass through is opened on the iron cover, and a nut is screwed on after the threaded rod passes through the through hole to ensure that the iron cover is firmly installed on the steel pipe.

[0008] Preferably, the length of the steel pipe is greater than the length of the drain hole to ensure the coverage of the entire drain hole.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model replaces the traditional PVC drain pipe with a steel pipe. In the construction project of reserving the construction of the drain hole on the precast beam bridge deck, the characteristic of high strength of the steel pipe is used to effectively avoid the problem of deformation of the drain hole duct, thereby ensuring the hole forming quality of the drain hole. Moreover, the steel pipe and the added iron cover cooperate with each other to form a sealed protection body, effectively avoiding the situation that concrete enters the inside of the steel pipe during the construction process, and facilitating the disassembly of the steel pipe in the later stage. Description of the Drawings

[0011] Figure 1 is the overall structural schematic diagram of the utility model;

[0012] Figure 2 is the structural schematic diagram of the iron cover of the utility model.

[0013] Reference Signs in the Drawings: 1, steel pipe; 2, iron cover; 3, threaded rod; 4, ring; 5, nut; 6, through hole. Detailed Embodiment

[0014] In order to make the purpose, technical solutions and advantages of the utility model clearer and more understandable, the following combines the embodiments and the drawings to make a further detailed description of the utility model. The illustrative embodiments of the utility model and their descriptions are only used to explain the utility model and do not limit the utility model.

[0015] Embodiment 1

[0016] As Figure 1 shown, a pre-embedded tool for the drain hole on the railway precast beam bridge deck includes a steel pipe 1 detachably assembled in the drain hole. One end of the steel pipe 1 corresponding to the drainage end of the drain hole is closed, and an iron cover 2 is detachably provided at the water inlet end corresponding to the drain hole. During the construction of the railway precast beam, first embed the steel pipe 1 into the drain hole of the beam bridge deck, and then pour the concrete. During the whole concrete pouring process, the characteristic of high strength of the steel pipe 1 is used to effectively avoid the problem of deformation of the drain hole duct. Specifically, before the concrete pouring, the steel pipe 1 is closed by the iron cover 2 to form a sealed protection body, effectively avoiding the situation that concrete enters the inside of the steel pipe 1 during the construction process, and thus facilitating the disassembly of the steel pipe 1 in the later stage.

[0017] Both the above-mentioned steel pipe 1 and the iron cover 2 are made of metal and can be recycled.

[0018] As a preferred solution of the above embodiment, a threaded rod 3 is provided inside the steel pipe 1. The threaded rod 3 passes through one end of the steel pipe 1 corresponding to the water discharge hole for water inlet, and is detachably connected to the iron cover 2. Specifically, a ring 4 is fixed on the closed end of the steel pipe 1. The threaded rod 3 is in an "L" shape, one end of which is detachably inserted into the ring 4, and the other end is used to connect the iron cover 2. A through hole 6 for the threaded rod 3 to pass through is provided on the iron cover 2. After the threaded rod 3 passes through the through hole 6, a nut 5 is screwed thereon to ensure that the iron cover 2 is firmly installed on the steel pipe 1.

[0019] As a preferred solution of the above embodiment, the length of the steel pipe 1 is greater than the length of the water discharge hole, so as to ensure the coverage of the entire water discharge hole, and the entire constructed water discharge hole will not be deformed.

[0020] Certainly, the present utility model can also have many other implementation manners. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A pre-embedded tool for drainage holes on the deck of precast railway girders, characterized in that, It includes a steel pipe (1) detachably assembled in a drain hole. One end of the steel pipe (1) corresponding to the drainage end of the drain hole is closed, and an iron cover (2) is detachably provided at the water inlet end corresponding to the drain hole.

2. The pre-embedded tool for the deck drain hole of the railway precast beam according to claim 1, characterized in that, A threaded rod (3) is arranged inside the steel pipe (1). The threaded rod (3) penetrates through the water inlet end of the steel pipe (1) corresponding to the drain hole and is detachably connected to the iron cover (2).

3. The pre-embedded tool for the deck drain hole of the railway precast beam according to claim 2, wherein A ring (4) is fixed on the closed end of the steel pipe (1). The threaded rod (3) is in an "L" shape, one end of which is detachably inserted into the ring (4), and the other end is used to connect the iron cover (2).

4. The pre-embedded tool for the deck drain hole of the railway precast beam according to claim 3, characterized in that, A through hole (6) for the threaded rod (3) to pass through is formed on the iron cover (2). After passing through the through hole (6), the threaded rod (3) is screwed with a nut (5).

5. The pre-embedded tool for the drain hole on the bridge deck of the precast railway beam according to any one of claims 1-4, characterized in that, The length of the steel pipe (1) is greater than the length of the drain hole.

Images