Prefabricated stair assembling and connecting structure

Abstract

The utility model aims to solve the problem of stability of a prefabricated stair, and discloses a prefabricated stair splicing and connecting structure which comprises the prefabricated stair, a guide frame is fixedly connected to the bottom face of the prefabricated stair, sliding pipes are symmetrically sleeved on the guide frame, hinge blocks are installed on the upper surfaces of the sliding pipes, a connecting block is arranged between the two hinge blocks, and the connecting block is connected with the guide frame. Rotating rods are symmetrically installed between the connecting block and the hinge block, pressing rods are evenly installed on the connecting block, pedal blocks are installed at the top ends of the pressing rods, a push rod is welded to the lower surface of the sliding pipe, a push plate is fixedly connected to the outer end of the push rod, an elastic piece is fixedly installed on the surface of the push plate, and the elastic piece is of an arc-shaped structure and is made of a steel material; the sliding pipe is in sliding fit with the guide frame, and the guide frame is of a U-shaped structure. According to the utility model, the support is arranged below the prefabricated staircase, and the support force of the support can be increased only when the prefabricated staircase is used, so that the stability of the prefabricated staircase is further improved.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated stairs, in particular to an assembly connection structure of prefabricated stairs. Background Art

[0002] Stairs are indispensable in the construction industry. Prefabricated stairs are relatively mature components in prefabricated parts of assembled buildings. For some longer prefabricated stairs, although it is relatively convenient to install, they can be directly hoisted to the designated location for installation. However, the load-bearing capacity in the middle of the prefabricated stairs is limited, and long-term use may cause certain deformation. When using the stairs, it is not easy to improve the overall load-bearing capacity of the stairs, which greatly reduces the service life of the stairs. In order to make the prefabricated stairs more stable, the inventor invented a prefabricated staircase assembly connection structure to solve the stability problem of the prefabricated stairs. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides a prefabricated staircase assembly connection structure.

[0004] The utility model is realized through the following technical solutions:

[0005] A prefabricated stair assembly connection structure comprises a prefabricated staircase, wherein a guide frame is fixedly connected to the bottom surface of the prefabricated staircase, a sliding tube is symmetrically sleeved on the guide frame, a hinge block is installed on the upper surface of the sliding tube, a connecting block is arranged between two hinge blocks, a rotating rod is symmetrically installed between the connecting block and the hinge block, pressure rods are evenly installed on the connecting blocks, a tread block is installed on the top of the pressure rod, a push rod is welded to the lower surface of the sliding tube, a push plate is fixedly connected to the outer end of the push rod, an elastic part is fixedly installed on the surface of the push plate, the elastic part is an arc-shaped structure and is made of steel material, the sliding tube and the guide frame are slidably matched, and the guide frame is a U-shaped structure.

[0006] As a preferred technical solution of the utility model, the compression rod is an arc-shaped structure, the compression rod and the connecting block are movably connected, a groove for the compression rod to slide is provided in the prefabricated staircase, and the rotating rod and the connecting block are movably connected.

[0007] As a preferred technical solution of the utility model, the hanging hole is arranged on the side of the prefabricated staircase, and a spiral structure is formed in the hanging hole.

[0008] As a preferred technical solution of the utility model, a rubber sealing belt is connected between the tread block and the step surface of the prefabricated staircase, and a groove corresponding to the tread block is opened on the surface of the prefabricated staircase.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model provides a pressure rod and a step block. When the prefabricated staircase is used, the step block can be stepped on to provide thrust on both sides to slide the slide tube, and the elastic member is used to tighten the connection between the prefabricated staircase and the platform to increase the stability of the prefabricated staircase, which is equivalent to arranging a stable bracket under the prefabricated staircase. The elastic member has a certain buffering effect to prevent excessive squeezing force on the connection between the prefabricated staircase and the platform. The step block can increase the support force of the prefabricated staircase when the staircase is used, and prevent the force from being applied between the prefabricated staircase and the platform for a long time, thereby preventing the prefabricated staircase from loosening. The utility model further increases the stability of the prefabricated staircase by arranging a bracket under the prefabricated staircase, and the bracket can increase the support force when the prefabricated staircase is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the pressure rod of the utility model.

[0013] Figure 3 This is a schematic diagram of the connection between the prefabricated staircase and the platform of the utility model.

[0014] In the figure: 1, pressure rod, 2, connecting block, 3, rotating rod, 4, hinge block, 5, sliding pipe, 6, push rod, 7, push plate, 8, elastic member, 9, guide frame, 10, hanging hole, 11, prefabricated stairs, 12, step block. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 , the utility model provides a technical solution:

[0017] A prefabricated stair assembly connection structure includes a prefabricated stair 11, a guide frame 9 is fixedly connected to the bottom surface of the prefabricated stair 11, a slide tube 5 is symmetrically sleeved on the guide frame 9, an articulation block 4 is installed on the upper surface of the slide tube 5, a connecting block 2 is arranged between two of the articulation blocks 4, a rotating rod 3 is symmetrically installed between the connecting block 2 and the articulation block 4, pressure rods 1 are evenly installed on the connecting block 2, a tread block 12 is installed on the top of the pressure rod 1, and a connecting piece composed of the tread block 12 and the pressure rod 1 forms a control switch for pushing the elastic member 8, so that the elastic member 8 is pushed and squeezed only when someone uses the staircase.

[0018] A push rod 6 is welded to the lower surface of the sliding tube 5, and a push plate 7 is fixedly connected to the outer end of the push rod 6. An elastic member 8 is fixedly installed on the surface of the push plate 7. The elastic member 8 is an arc-shaped structure and is made of steel. The sliding tube 5 is slidably matched with a guide frame 9. The guide frame 9 is a U-shaped structure. The setting of the elastic member 8 has a certain buffering force, and also facilitates the integral bracket formed under the prefabricated stairs 11 to support the prefabricated stairs 11.

[0019] The compression rod 1 is an arc-shaped structure, and is movably connected to the connecting block 2. A groove for the compression rod 1 to slide is provided in the prefabricated staircase 11, and the rotating rod 3 is movably connected to the connecting block 2.

[0020] The hanging hole 10 is arranged on the side of the prefabricated staircase, and the inside of the hanging hole 10 is a spiral structure.

[0021] A rubber sealing belt is connected between the tread block 12 and the step surface of the prefabricated staircase 11 , and a groove corresponding to the tread block 12 is opened on the surface of the prefabricated staircase 11 .

[0022] Working principle: applied to this embodiment, when a person steps on the prefabricated stair 11, he steps on the tread block 12, which in turn pushes the pressure rod 1. The sliding of the pressure rod 1 will squeeze the rotating rod 3, so that the slide tube 5 will slide to both sides. At the same time, it will drive the elastic member 8 to slide outward, and the elastic member 8 is used to support the connection between the prefabricated stair 11 and the platform, so that the integral bracket under the prefabricated stair 11 can stably support the prefabricated stair 11, thereby increasing the overall stability of the prefabricated staircase. When no one is using it, stop stepping on the tread block 12. At this time, due to the action of the elastic member 8, the continuous squeezing of the connection between the prefabricated stair 11 and the platform is stopped, thereby preventing the connection between the prefabricated stair 11 and the platform from loosening, making the assembled prefabricated staircase more stable when used.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated staircase assembly connection structure, comprising a prefabricated staircase (11), characterized in that: The bottom surface of the prefabricated staircase (11) is fixedly connected to a guide frame (9), a slide tube (5) is symmetrically sleeved on the guide frame (9), an articulated block (4) is mounted on the upper surface of the slide tube (5), a connecting block (2) is arranged between the two articulated blocks (4), a rotating rod (3) is symmetrically mounted between the connecting block (2) and the articulated block (4), pressure rods (1) are evenly mounted on the connecting block (2), and a step block (12) is mounted on the top of the pressure rod (1).

2. The prefabricated staircase assembly connection structure according to claim 1, characterized in that: A push rod (6) is welded to the lower surface of the slide tube (5), and a push plate (7) is fixedly connected to the outer end of the push rod (6). An elastic member (8) is fixedly installed on the surface of the push plate (7). The elastic member (8) is an arc-shaped structure and is made of steel material. The slide tube (5) is slidably matched with a guide frame (9), and the guide frame (9) is a U-shaped structure.

3. The prefabricated staircase assembly connection structure according to claim 1, characterized in that: The compression rod (1) is an arc-shaped structure, the compression rod (1) and the connecting block (2) are movably connected, a groove for the compression rod (1) to slide is provided in the prefabricated staircase (11), and the rotating rod (3) and the connecting block (2) are movably connected.

4. The prefabricated staircase assembly connection structure according to claim 1, characterized in that: The hanging hole (10) is arranged on the side of the prefabricated staircase, and a spiral structure is formed inside the hanging hole (10).

5. The prefabricated staircase assembly connection structure according to claim 1, characterized in that: A rubber sealing belt is connected between the tread block (12) and the step surface of the prefabricated staircase (11), and a groove corresponding to the tread block (12) is opened on the surface of the prefabricated staircase (11).

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