Assembly type subway station cast-in-place bottom plate tenon positioning pin hole

Abstract

The utility model relates to the technical field of assembly type subway station pouring, and discloses an assembly type subway station cast-in-place bottom plate tenon positioning pin hole which comprises a pin hole die, the pin hole die is of a hollow steel structure, a T-shaped short-edge steel bar is arranged on the top face of the pin hole die, small positioning steel plates are fixedly arranged at the left end and the right end of the bottom face of the T-shaped short-edge steel bar, and a sleeving seat is arranged in the middle of the top face of the T-shaped short-edge steel bar. A front-back through connecting groove is reserved in the sleeving seat, a T-shaped long-edge steel bar is slidably connected in the connecting groove in a sleeving mode, and a small positioning steel plate is arranged on the bottom face of one end of the T-shaped long-edge steel bar. Compared with the prior art, the combination has the advantages that the mass of the die is reduced, the operability of the die is improved, the purpose of convenient construction is achieved, manual operation can be reduced through the three small positioning steel plates at the ends of the T-shaped steel bars, and the combination can be assembled and disassembled only by buckling the combination on a cast-in-place bottom plate steel formwork. And positioning can be achieved by abutting the three small positioning steel plates at the long ends of the T-shaped steel bars against the cast-in-place bottom plate steel formwork, convenience and high efficiency are achieved, and the construction difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of casting of assembled subway stations, in particular to a tenon positioning pin hole for a cast-in-place bottom plate of an assembled subway station. Background Art

[0002] Locating pin holes are often used on the tenons of cast-in-place floor slabs of prefabricated stations, usually to solve construction problems such as insufficient assembly precision and large assembly errors of side walls, and to improve the assembly quality of prefabricated components.

[0003] At present, the positioning pin holes have been used in the construction of various cast-in-place base plates of assembled subway stations. Since the positioning pin holes have high construction accuracy requirements, especially in the construction process of cast-in-place concrete, the construction accuracy of the positioning pin holes is difficult to control. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is that the positioning pin holes have high construction accuracy requirements, especially in the construction process of cast-in-place concrete, unstable factors frequently occur, which makes it difficult to control the construction accuracy of the positioning pin holes.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0008] A mortise positioning pin hole for a cast-in-place bottom plate of an assembled subway station, comprising a pin hole mold, a "T"-shaped long side steel bar, a "T"-shaped short side steel bar, a positioning small steel plate, and a socket seat;

[0009] The pin hole mold is a hollow steel structure with a "T"-shaped short side steel bar on the top surface, small positioning steel plates fixedly provided at both ends of the bottom surface of the "T"-shaped short side steel bar, a socket seat is provided in the middle of the top surface, and a connecting groove through the front and back is reserved in the socket seat, and a "T"-shaped long side steel bar is slidably sleeved in the connecting groove, and a small positioning steel plate is provided on the bottom surface of one end of the "T"-shaped long side steel bar.

[0010] As an improvement, the pin hole mold is pre-embedded in the cast-in-place tenon to isolate the concrete, so that the mold contour is formed at this position.

[0011] As an improvement, a small positioning steel plate is welded according to the distance between the positioning pin hole and the edge of the tenon, so that the small positioning steel plate is snapped onto the edge of the tenon.

[0012] As an improvement, the "T"-shaped short side steel bar is supported on the tenon steel template, connecting the pin hole mold and the positioning small steel plate to achieve position control of the positioning pin hole in the y-axis direction.

[0013] As an improvement, the "T"-shaped long side steel bar is used to position the connection welding of the small steel plate, so as to realize the position control of the positioning pin hole in the x-axis direction.

[0014] (III) Beneficial effects

[0015] The advantages of the utility model compared with the prior art are:

[0016] A hollow steel structure pin hole mold is used to replace the traditional solid iron mold to reduce the mold mass and improve the operability of the mold to achieve the purpose of convenient construction. The three small positioning steel plates at the end of the "T"-shaped steel bar can reduce manual operation. It is only necessary to buckle the combination on the cast-in-place bottom plate steel formwork and press the three small positioning steel plates at the long end of the "T"-shaped steel bar on the cast-in-place bottom plate steel formwork to achieve positioning. It is convenient and efficient and reduces the difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the appearance of the utility model.

[0018] Figure 2 It is a schematic diagram of the component composition of the utility model.

[0019] As shown in the figure: 1. Pin hole mold; 2. "T"-shaped long side steel bar; 3. "T"-shaped short side steel bar; 4. Positioning small steel plate; 5. Socket seat; 6. Connecting groove. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Please see attached Figure 1 , Attachment Figure 2As shown, a positioning pin hole of the tenon of the cast-in-place floor of an assembled subway station comprises a pin hole mold 1. The pin hole mold 1 is a hollow steel structure. The pin hole mold 1 is pre-buried in the cast-in-place tenon to isolate the concrete so that the position forms a mold outline. A "T"-shaped short-side steel bar 3 is provided on the top surface of the pin hole mold 1. Small positioning steel plates 4 are fixedly provided at both ends of the left and right sides of the bottom surface of the "T"-shaped short-side steel bar 3. A socket seat 5 is provided in the middle of the top surface. The socket seat 5 is reserved with a connecting groove 6 that passes through front and back. A "T"-shaped long-side steel bar 2 is slidably socketed in the connecting groove 6. A small positioning steel plate 4 is provided on the bottom surface of one end of the "T"-shaped long-side steel bar 2. The small positioning steel plate 4 is welded according to the position of the positioning pin hole from the edge of the tenon, so that the small positioning steel plate 4 is snapped on the edge of the tenon to realize the positioning control of the positioning pin hole mold 1. The "T"-shaped short side steel bar 3 is supported on the tenon steel template, connecting the pin hole mold 1 and the positioning small steel plate 4, to realize the position control of the positioning pin hole in the y-axis direction and prevent the pin hole mold 1 from falling off. The "T"-shaped long side steel bar 2 is used for the connection welding of the positioning small steel plate 4, to realize the position control of the positioning pin hole in the x-axis direction.

[0023] It is particularly important to note that the position of the small steel plate 4 is determined according to the size of the steel mold used at the construction site, the small steel plate 4 needs to be snapped into the tenon mold of the cast-in-place base plate, and the height of the small steel plate 4 is determined according to the actual situation on site.

[0024] Through the above structure, a pin hole mold 1 with a hollow steel structure is used to replace the traditional solid iron mold, which reduces the mold mass and improves the operability of the mold to achieve the purpose of convenient construction. The three small positioning steel plates 4 at the end of the "T"-shaped steel bar can reduce manual operation. It is only necessary to buckle the combination on the cast-in-place bottom plate steel template and press the three small positioning steel plates 4 at the long end of the "T"-shaped steel bar on the cast-in-place bottom plate steel template to achieve positioning. It is convenient and efficient and reduces the difficulty of construction.

[0025] During the specific implementation of the utility model: when it is necessary to position the tenon of the cast-in-place base plate during construction, first, the pin hole mold 1 is pre-buried in advance in the cast-in-place tenon to isolate the concrete, so that the position forms the mold outline, and is inserted into the tenon of the cast-in-place base plate, and then the "T"-shaped short side steel bar 3 is supported on the tenon steel template, the pin hole mold 1 and the positioning small steel plate 4 are connected, the "T"-shaped long side steel bar 2 and the socket seat 5 are slidably connected together, and then according to the position of the positioning pin hole from the edge of the tenon, the positioning small steel plate 4 is welded at the bottom end of the "T"-shaped short side steel bar 3 and the "T"-shaped long side steel bar 2, so that the positioning small steel plate 4 is buckled on the edge of the tenon to realize the positioning control of the positioning pin hole mold.

[0026] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention of the utility model, they can creatively design a structure and embodiment similar to the technical solution, which should belong to the protection scope of the utility model.

Claims

1. A tenon positioning pin hole for a cast-in-place floor of an assembled subway station, comprising a pin hole mold (1), characterized in that: It also includes a "T"-shaped long side steel bar (2), a "T"-shaped short side steel bar (3), a positioning small steel plate (4), and a socket seat (5); The pin hole mold (1) is a hollow steel structure, with a "T"-shaped short side steel bar (3) on the top surface, small positioning steel plates (4) fixedly provided at both left and right ends of the bottom surface of the "T"-shaped short side steel bar (3), a sleeve seat (5) provided in the middle of the top surface, a connecting groove (6) through which the sleeve seat (5) is reserved, a "T"-shaped long side steel bar (2) is slidably sleeved in the connecting groove (6), and a small positioning steel plate (4) is provided on the bottom surface of one end of the "T"-shaped long side steel bar (2).

2. The tenon positioning pin hole of the cast-in-place floor of an assembled subway station according to claim 1 is characterized in that: The pin hole mold (1) is pre-embedded in the cast-in-place tenon isolation concrete in advance so that the mold outline is formed at this position.

3. The tenon positioning pin hole of the cast-in-place floor of an assembled subway station according to claim 1 is characterized by: A small positioning steel plate (4) is welded according to the distance between the positioning pin hole and the edge of the tenon, so that the small positioning steel plate (4) is buckled on the edge of the tenon.

4. The tenon positioning pin hole of the cast-in-place floor of an assembled subway station according to claim 1 is characterized in that: The "T"-shaped short side steel bar (3) is supported on the tenon steel template, connecting the pin hole mold (1) and the positioning small steel plate (4) to achieve position control of the positioning pin hole in the y-axis direction.

5. The tenon positioning pin hole of the cast-in-place floor of an assembled subway station according to claim 1, characterized in that: The "T"-shaped long side steel bar (2) is used for the connection welding of the positioning small steel plate (4) to achieve position control of the positioning pin hole in the x-axis direction.

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