Fixing device for protecting fabricated stair finished product

Abstract

The utility model belongs to a protection plate fixing device of a prefabricated assembly type stair in the field of building construction, and particularly relates to a fixing device for protecting an assembly type stair finished product. A fixing device composed of a transfer beam, a transfer beam pressing plate, a pressing plate fixing screw, a pressing beam, an external corner fixer, an external corner fixer nut, a pressing beam fixer, a sizing block, a pressing beam fixing nut, a direct connector and a direct connector bolt can effectively fix the fabricated stair protection plate, and follow-up construction operation is not affected. And the personal safety protection effect on operators is improved.

Description

Technical Field

[0001] The present invention belongs to a fixing device for a protection board of a prefabricated assembled staircase in the field of building construction, and specifically relates to a fixing device for the finished product protection of an assembled staircase. Background Art

[0002] With the popularization and use of prefabricated green buildings in the construction industry, its prefabricated building structure has gradually replaced the cast-in-place concrete building structure. Among them, the prefabricated staircase is a precast component often used in prefabricated buildings. During the construction process, the prefabricated staircase is used as a passage for construction workers to go up and down the building, and at the same time, it also undertakes functions such as material transportation and load-bearing. As a result, the prefabricated staircase is damaged during the construction process, leading to the following problems: damaged steps, missing edges and corners, surface wear, surface pollution, etc. For the above problems, repair measures are usually taken to make up for them. However, there will be problems such as large color differences, easy peeling off, time-consuming and laborious after repair, which cause great trouble to the construction unit.

[0003] In the current building market, the common finished product protection measures mainly include using wooden templates to protect the steps. The fixing methods are divided into fixing with wooden strips on the side and fixing with wooden strips on the top. When fixing with wooden strips on the side, when the staircase step is adjacent to the wall, it will affect the subsequent wall masonry operation, and also affect subsequent decorative operations such as wall plastering and step skirting. Fixing with wooden strips on the top has poor load-bearing performance, resulting in the displacement and suspension of the step protection wooden template, posing a great safety hazard to the personal safety of construction workers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fixing device for the finished product protection of a prefabricated staircase in view of the above-mentioned deficiencies in the prior art. The fixing device has a simple structure, reasonable design, is easy to install, can be recycled, and can effectively fix the displacement of the step protection board, making the finished product protection of the prefabricated staircase simpler and more convenient. At the same time, it does not affect the adjacent wall masonry operation and subsequent decorative construction operations such as wall plastering and step skirting, and can be adjusted accordingly according to different specifications and sizes of the prefabricated staircase.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A fixing device for the finished product protection of prefabricated stairs, characterized in that: a conversion beam, the conversion beam is a channel steel with a "C"-shaped opening, and oval holes are arranged at a certain interval at the bottom of the channel steel for fixing; a conversion beam pressing plate, the conversion beam pressing plate is a convex-shaped steel plate, and a bolt hole is arranged at the center of the steel plate for fixing, and its convex part can limit the displacement of the conversion beam; a pressing plate fixing bolt, the pressing plate fixing bolt is used to sequentially pass through the conversion beam pressing plate, the conversion beam and the prefabricated stair hoisting bolt hole for connection; a pressing beam, the pressing beam is a channel steel with a "C"-shaped opening, and oval holes are arranged at a certain interval at the bottom of the channel steel for fixing the device and itself; a direct connector, the direct connector is a "["-shaped steel plate, and 4 internal thread bolt holes are arranged on the steel plate for fixing the conversion beam or the pressing beam inserted at both ends of the direct connector; a direct connector bolt, the direct connector bolt is used for tightening and loosening operations on the direct connector to realize the installation and disassembly operations of the conversion beam and the pressing beam inserted at both ends of the direct connector; an external corner fixer, the external corner fixer is a right-angle fixing facility, and a bolt is arranged behind it for its own fixing, and the right-angle part is used for fixing the prefabricated stair step protection plate; an external corner fixer nut, the external corner fixer nut is used for fixing after the external corner fixer passes through the pressing beam; a pressing beam fixer, the pressing beam fixer is a "mountain"-shaped fixing device for connecting and fixing the conversion beam and the pressing beam; a shim, the shim is a triangular device, and a bolt hole is arranged at the top for changing the top surface of the pressing beam at a certain angle into a horizontal plane, and providing a more reliable force-bearing plane for the pressing beam fixer nut; a pressing beam fixer nut, the pressing beam fixer nut is used for connecting and fixing after the pressing beam fixer screw sequentially passes through the pressing beam and the shim.

[0007] The conversion beam has its "C"-shaped opening facing upwards and is installed on the same-level step where the prefabricated stair hoisting bolt hole is located. Oval holes are arranged at a certain interval at the bottom of the conversion beam to be fixed with prefabricated stair hoisting holes of different specifications. In order to achieve the conversion of the prefabricated stair hoisting bolt hole into a horizontally full-length fixing method, when the length of the conversion beam is insufficient, a direct connector is used in cooperation with the direct connector bolt to fasten the conversion beam of the corresponding length. The convex surface of the conversion beam pressing plate is buckled downwards on the conversion beam, and its convex part plays a role in restricting the displacement of the conversion beam. The pressing plate fixing bolt is used to sequentially pass through the conversion beam pressing plate, the conversion beam and the prefabricated stair hoisting bolt hole for connection and fixing. For the step provided with the conversion beam, the prefabricated stair step protection plate should be arranged in multiple layers so that its top surface is at the same height as the top surface of the conversion beam to avoid too large a height difference and form a safety hazard.

[0008] The compression beam is fixed using the external angle fixer nut according to the assembled stairs of different specifications and sizes by increasing, decreasing and adjusting the position of the external angle fixer relative to the compression beam. If the compression beam is not long enough to cover all the steps, a direct connector is used in conjunction with the direct connector bolts to tighten the compression beam of corresponding length.

[0009] The "mountain"-shaped opening of the pressure beam fixer faces upwards, and is pushed into the beam at the end of the conversion beam. The pressure beam equipped with the positive angle fixer is inserted into the bolt of the pressure beam fixer, and then the washer is inserted into the bolt of the pressure beam fixer, and the pressure beam fixer nut is used to connect and fix.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the conversion beam, pressure beam and external angle fixer are adjusted through the device to adapt to the application of prefabricated stairs of different specifications and sizes; by unifying the specifications of all bolts and nuts on the device, the installation and disassembly operations of tools of a single specification can be realized; all materials of the device can be circulated, reducing construction costs; it can be used for protective plates of various materials, and has a wide range of applications; it solves the problem that the prior art affects subsequent operations such as wall masonry, wall plastering, and step skirtings; at the same time, it solves the problem that the prior art has poor force bearing capacity, resulting in the displacement and suspension of the prefabricated stair tread protective plates, thereby greatly improving safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an axonometric diagram of a fixing device for protecting finished assembled stairs of the present invention;

[0012] Figure 2 An exploded view of a fixing device for protecting a finished assembled staircase according to the present invention;

[0013] Figure 3 For the present invention Figure 1 The enlarged schematic diagram of the circled part of the middle coil A;

[0014] Figure 4 For the present invention Figure 1 The left side view of the enlarged schematic diagram of the circled portion of the center coil A;

[0015] Figure 5 For the present invention Figure 1 The enlarged schematic diagram of the circled part of the middle coil B;

[0016] Figure 6 For the present invention Figure 2 The enlarged schematic diagram of the circled part of the middle coil C;

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Prefabricated staircase; 101. Installation and fixing holes for prefabricated staircase; 102. Hoisting bolt holes for prefabricated staircase; 103. Reserved holes for railing installation; 2. Protective plate for prefabricated staircase tread; 3. Transfer beam; 4. Transfer beam pressing plate; 5. Pressing plate fixing bolt; 6. Beam pressing fixator; 7. Shim; 8. Nut for beam pressing fixator; 9. Pressing beam; 10. Outer corner fixator; 11. Nut for outer corner fixator; 12. Direct connector; 13. Direct connector bolt. Detailed implementation mode

[0019] To achieve the above object, the present invention provides the following technical solutions:

[0020] A fixing device for the finished product protection of a prefabricated staircase, characterized in that: a transfer beam (3), the transfer beam (3) is a channel steel with a "C"-shaped opening, and oval holes are arranged at a certain interval at the bottom of the channel steel for fixing use; a transfer beam pressing plate (4), the transfer beam pressing plate (4) is a convex-shaped steel plate, and a bolt hole is provided in the center of the steel plate for fixing use, and its convex part can limit the displacement of the transfer beam (3); a pressing plate fixing bolt (5), the pressing plate fixing bolt is used to sequentially pass through the transfer beam pressing plate (4), the transfer beam (3) and the hoisting bolt hole (103) of the prefabricated staircase for connection; a pressing beam (9), the pressing beam (9) is a channel steel with a "C"-shaped opening, and oval holes are arranged at a certain interval at the bottom of the channel steel for the fixing of the fixing device and itself; a direct connector (12), the direct connector (12) is a "[ "-shaped steel plate, and 4 internal thread bolt holes are provided on the steel plate for fixing the transfer beam (3) or the pressing beam (9) inserted at both ends of the direct connector; a direct connector bolt (13), the direct connector bolt (13) is used for the tightening and loosening operation on the direct connector (12) to realize the installation and disassembly operations of the transfer beam (3) and the pressing beam (9) inserted at both ends of the direct connector. An outer corner fixator (10), the outer corner fixator (10) is a right-angle fixing facility, and a bolt is provided behind it for its own fixing, and the right-angle part is used for fixing the protective plate (2) of the prefabricated staircase tread; an outer corner fixator nut (11), the outer corner fixator nut (11) is used for fixing after the outer corner fixator (10) passes through the pressing beam (9). A beam pressing fixator (6), the beam pressing fixator (6) is a "mountain"-shaped fixing device for the connection and fixing of the transfer beam (3) and the pressing beam (9); a shim (7), the shim (7) is a triangular device, and a bolt hole is provided at the top for changing the top of the pressing beam (9) at a certain angle to a horizontal plane, providing a more reliable force-bearing plane for the nut (8) of the beam pressing fixator. A nut (8) for the beam pressing fixator, the nut (8) for the beam pressing fixator is used for the connection and fixing after the screw of the beam pressing fixator (6) sequentially passes through the pressing beam (9) and the shim (7).

[0021] Working principle: The fixing bolt (5) of the pressing plate passes through the conversion beam pressing plate (4) and the conversion beam (3), and is fixed on two steps at the same level as the hoisting bolt holes (103) of the prefabricated staircase, so as to convert the hoisting bolt holes of the prefabricated staircase into a fixed method with the full transverse length. The protruding part of the beam pressing plate (4) can limit the displacement of the conversion beam (3). According to the different step widths of the prefabricated staircases (1) of different specifications, the direct connector (12) can be used in combination with the direct connector bolt (13) to extend the conversion beam (3). Due to the different numbers of steps of the prefabricated staircases (1) of different specifications, the length of the pressing beam (9) and the number of the external corner fixators (10) will also change. Therefore, the pressing beam (9) can be extended by using the direct connector (12) in combination with the direct connector bolt (13), and the number of the external corner fixators (10) and the external corner fixator nuts (11) can be increased or decreased for matching to correspond to the prefabricated staircases (1) of different specifications. After the pressing beam fixator (6) is pushed into the end of the conversion beam (3), the pressing beam (9) and the shim (7) are successively inserted, and fixed by tightening the pressing beam fixator nut (8). All the bolts and nuts on the device are of the same specification, and the installation and disassembly operations of a single type of tool can be realized.

[0022] Although the embodiments of the present invention have been described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for protecting finished assembled stairs, characterized in that: A transfer beam (3), the transfer beam (3) being a channel steel with a "C"-shaped opening, with elliptical holes arranged at a certain interval at the bottom of the channel steel for fixing; a transfer beam pressure plate (4), the transfer beam pressure plate (4) being a convex-shaped steel plate, with a bolt hole arranged at the center of the steel plate for fixing, and the convex portion of the steel plate being capable of limiting the displacement of the transfer beam (3); a pressure plate fixing bolt (5), the pressure plate fixing bolt being used to sequentially pass through the transfer beam pressure plate (4), the transfer beam (3) and the assembled staircase hoisting bolt hole (102) to be fixed. A pressure beam (9), the pressure beam (9) is a channel steel with a "C"-shaped opening, and oval holes are arranged at a certain interval at the bottom of the channel steel for fixing the device and itself; a direct connector (12), the direct connector (12) is a "["-shaped steel plate, and 4 internal thread bolt holes are arranged on the steel plate for fixing the conversion beam (3) or the pressure beam (9) inserted into the two ends of the direct connector; a direct connector bolt (13), the direct connector bolt (13) is used to loosen the direct connector (12) A tightening operation is performed to realize the installation and removal of the conversion beam (3) and the pressure beam (9) inserted into the two ends of the direct connector (12); a positive angle fixer (10), the positive angle fixer (10) is a right-angle fixing facility, a bolt is provided at the back of the positive angle fixer (10) for fixing itself, and the right-angle portion is used to fix the assembled stair tread protection plate (2); a positive angle fixer nut (11), the positive angle fixer nut (11) is used to fix the positive angle fixer (10) after passing through the pressure beam (9); a pressure beam fixer (6), the pressure beam fixing The device (6) is a "mountain"-shaped fixing device used for connecting and fixing the conversion beam (3) and the pressure beam (9); the washer (7), which is a triangular device with a bolt hole on the top, used to change the top of the pressure beam (9) at a certain angle into a horizontal plane, providing a more reliable plane for the pressure beam fixer nut (8); the pressure beam fixer nut (8), which is used for connecting and fixing the pressure beam fixer (6) after the screw rod passes through the pressure beam (9) and the washer (7) in sequence.

2. A fixing device for protecting finished assembled stairs according to claim 1, characterized in that The transfer beam (3) has elliptical holes arranged at a certain interval at the bottom of the transfer beam (3) so as to be fixed with the lifting bolt holes (102) of assembled stairs of different specifications.

3. A fixing device for protecting finished assembled stairs according to claim 1, characterized by The external angle fixer (10) and the external angle fixer nut (11) are fixed on the pressure beam (9) in cooperation with each other and can be adjusted according to assembled stairs (1) of different specifications.

4. A fixing device for protecting finished assembled stairs according to claim 1, characterized in that The pressure beam fixer (6) can effectively connect the conversion beam (3) and the pressure beam (9), and can change the top of the pressure beam at a certain angle into a horizontal plane through the shim (7), thereby providing a more reliable plane for the pressure beam fixer nut (8).

5. A fixing device for protecting finished assembled stairs according to claim 1, characterized in that If the conversion beam (3) and the pressure beam (9) are insufficient in length, the lengths can be increased by using a direct connector (12) and a direct connector bolt (13).

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