CN220267061U - A kind of prefabricated stair conversion beam - Google Patents

Abstract

The utility model relates to the technical field of construction engineering, and discloses a prefabricated stair conversion beam, which includes a beam body. Two installation grooves are provided on the upper surface of the beam body. The front and rear ends of the installation grooves extend to the front and rear of the beam body respectively. Surface, there are four sockets on the lower surface inside the installation groove, and the four sockets are divided into two groups. There is a sliding block slidingly connected inside the installation groove. When the corresponding rotating block is rotated, the worm rotates and is driven by the worm gear. The screw rotates, and the slide block and shift block rotate. After adjustment, connect the beam to the wall or conversion column, and then rotate the drum to rotate the gear. The two tooth plates move away from each other and enter the two inner cavities respectively. At this time Pour concrete into the sinking trough. The concrete enters the trough and the inner cavity through the rotating drum and through holes. After solidification, the moving blocks can be fixed. At this time, the prefabricated stairs can be placed inside the installation trough and inserted into the sinking trough. The holes are connected and fixed to complete the connection between the two stairs and the beam body parts.

Description

A kind of prefabricated stair conversion beam

Technical field

The utility model relates to the technical field of construction engineering, and is specifically a prefabricated stair conversion beam.

Background technique

The progress of construction industrialization has brought about the continuous optimization of prefabricated building structures. As an important part of prefabricated buildings, steel structure buildings have been widely used for their advantages of low resource consumption, low environmental pollution, and fast construction pace, providing people with healthy , applicable, efficient and environmentally friendly use space and living environment. Precast concrete stairs are commonly used in steel structures. Compared with traditional cast-in-situ stairs, they greatly reduce the workload of on-site construction and shorten the construction period. At present, the connection between precast concrete stairs and ladder beams adopts the connection method of inserting anchors and then grouting; due to the requirements of building functions, the lower part of the space is large, and the upper part of the vertical components cannot directly and continuously penetrate the landing. Instead, through the horizontal conversion structure and The lower vertical members are connected. When the upper structure supported by the transfer beam is a shear wall, the transfer beam is called a frame support beam. There is currently a lack of a prefabricated staircase transfer beam.

Utility model content

In view of the shortcomings of the existing technology, the present utility model provides a prefabricated stair conversion beam, which solves the problems raised in the above background technology.

In order to solve the above technical problems, according to one aspect of the present utility model, more specifically, it is a prefabricated stair conversion beam, which includes a beam body. Two installation grooves are provided on the upper surface of the beam body. The front and rear ends of the installation groove are respectively Extending to the front and rear surfaces of the beam body, four sockets are provided on the inner lower surface of the installation groove. The four sockets are divided into two groups. There is a sliding block slidingly connected inside the installation groove. The beam body Two chutes are provided on the upper surface. The two chutes are located on the opposite sides of the two installation grooves. The inside of the chute is connected to the interior of the installation groove. The rear surface of the inside of the chute is provided with a In the inner groove, the inside of the chute is connected to a screw for rotation together with the inside of the inner groove. The outer surface of the screw is located inside the chute and is threadedly connected to a slider. The slider is fixedly connected to the moving block. A worm wheel is fixed on the outer surface of the screw inside the inner groove, and a worm is rotatably connected to the inside of the inner groove below the worm wheel. The worm is meshed with the worm wheel, and rotors are embedded on the left and right sides of the installation groove. block, and one end of the worm away from the worm gear is fixedly connected to the rotating block.

Furthermore, inner cavities are provided on the opposite sides of the two shifting blocks, and a through groove is provided inside the beam body. There are toothed plates slidingly connected to the front and rear of the through groove, and the lower surface inside the through groove rotates. A gear is connected, a rotating drum is fixed at the center of the upper surface of the gear, a sinking groove is provided on the upper surface of the beam body, the top of the rotating drum penetrates to the lower surface inside the sinking groove, and a sinking groove is provided on the outer surface of the rotating drum. There are a plurality of through-type through holes, and the inside of the rotating drum is connected with the inside of the through-groove through the through holes.

Furthermore, a plurality of tooth slots are provided on opposite sides of the two tooth plates, and the tooth plates are meshed with the gear through the tooth slots.

Furthermore, the tooth plate is adapted to the inner cavity.

Furthermore, the rotating drum has a hollow rectangular column structure inside.

Furthermore, the outer surface of the slider is in contact with the inner surface of the chute.

The beneficial effects of a prefabricated stair transfer beam of this utility model are:

When the utility model is used, according to the direction of the two prefabricated stairs that need to be assembled, adjust the positions of the two moving blocks so that the free space in the installation groove can be used for the installation of the stairs. When adjusting, rotate the corresponding rotating block, and the worm rotation drives the screw to rotate through the worm gear. The slide block and the shifting block can be rotated. After adjustment, connect the beam to the wall or conversion column, and then rotate the drum to rotate the gear. The two tooth plates move back to each other and enter the two inner cavities respectively. At this time, they move towards the sink groove. Concrete is poured inside, and the concrete enters the slot and the inner cavity through the rotating drum and through holes. After solidification, the moving blocks are fixed. At this time, the prefabricated stairs can be placed inside the installation slot and connected and fixed through the jacks. , complete the connection between the two stairs and the beam body parts.

Description of drawings

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a schematic cross-sectional structural diagram of the utility model;

Figure 3 is a schematic cross-sectional view of the utility model;

Figure 4 is a schematic top view of the structure of the present utility model.

In the picture: 1. Beam body; 2. Installation slot; 3. Jack; 4. Moving block; 5. Chute; 6. Screw; 7. Slider; 8. Inner groove; 9. Worm wheel; 10. Worm; 11. Rotating block; 12. Inner cavity; 13. Through slot; 14. Toothed plate; 15. Gear; 16. Rotary drum; 17. Through hole; 18. Sinking groove.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other.

As shown in Figures 1-4, according to one aspect of the present utility model, a prefabricated stair conversion beam is provided, which includes a beam body 1. Two mounting slots 2 are provided on the upper surface of the beam body 1. The front and rear ends of the mounting slots 2 extend respectively. To the front and rear surfaces of the beam body 1, four sockets 3 are provided on the inner lower surface of the installation groove 2. The four sockets 3 are divided into two groups. There are sliding blocks 4 slidably connected inside the installation groove 2. There are four sockets 3 on the upper surface of the beam body 1. Two chute 5, two chute 5 are respectively located on the opposite sides of the two installation grooves 2. The inside of the chute 5 is connected with the inside of the installation groove 2. An inner groove 8 is provided on the rear surface of the inside of the chute 5. The inside of the chute 5 A screw rod 6 is connected to rotate with the inner groove 8. The outer surface of the screw rod 6 is located inside the chute 5 and is threadedly connected to a slider 7. The slider 7 is fixedly connected to the moving block 4. The outer surface of the screw rod 6 is located inside the inner groove 8 and a worm gear is fixed therein. 9. A worm 10 is rotatably connected to the inner groove 8 below the worm gear 9. The worm 10 is meshed with the worm gear 9. The left and right sides of the installation slot 2 are embedded with rotary blocks 11. The end of the worm 10 away from the worm gear 9 is fixedly connected to the rotary block 11. .

In this embodiment, inner cavities 12 are provided on opposite sides of the two shifting blocks 4, and a through groove 13 is provided inside the beam body 1. There are toothed plates 14 slidingly connected to the front and rear of the through groove 13, and the inner lower surface of the through groove 13 A gear 15 is rotatably connected. A rotating drum 16 is fixed at the center of the upper surface of the gear 15. A sinking groove 18 is provided on the upper surface of the beam body 1. The top of the rotating drum 16 penetrates to the inner lower surface of the sinking groove 18. There are multiple openings on the outer surface of the rotating drum 16. There is a through-type through hole 17. The inside of the drum 16 is connected with the inside of the through slot 13 through the through hole 17. Rotating the drum 16 causes the gear 15 to rotate, and the two tooth plates 14 move away from each other and enter the two inner cavities 12 respectively. At this time, concrete is poured into the sink 18, and the concrete enters the through groove 13 and the inner cavity 12 through the rotating drum 16 and the through hole 17. After solidification, the moving block 4 is fixed.

In this embodiment, two tooth plates 14 are provided with a number of tooth slots on opposite sides. The tooth plates 14 are meshed with the gear 15 through the tooth slots. After the gear 15 rotates, the two tooth plates 14 will move away from each other.

In this embodiment, the tooth plate 14 is adapted to the inner cavity 12 , and the tooth plate 14 can slide to point inside the inner cavity 12 .

In this embodiment, the rotating drum 16 has a hollow rectangular column structure inside, and the internal rectangular space can be used by personnel to insert tools to make it more convenient to rotate.

In this embodiment, the outer surface of the slider 7 fits the inner surface of the chute 5 , so that when the screw 6 rotates, the slider 7 cannot rotate under the limit of the chute 5 and can slide along the chute 5 .

The working principle of this device is: during use, adjust the positions of the two moving blocks 4 according to the direction of the two prefabricated stairs that need to be assembled so that the free space in the installation slot 2 can be used for stair installation. During adjustment, rotate the corresponding rotating block 11 and worm 10 The rotation drives the screw 6 to rotate through the worm gear 9, and the slide block 7 and the moving block 4 are rotated. After adjustment, connect the beam 1 to the wall or conversion column, and then rotate the drum 16 to rotate the gear 15, and the two toothed plates 14 are in contact with each other. Move back and enter the two inner cavities 12 respectively. At this time, pour concrete into the sink 18. The concrete enters the through groove 13 and the inner cavity 12 through the rotating drum 16 and the through hole 17. After waiting for solidification, move the block 4 can be fixed. At this time, the prefabricated stairs can be placed inside the installation slot 2 and connected and fixed through the jack 3 to complete the connection between the two stairs and the beam body parts.

Of course, the above description does not limit the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essential scope of the present utility model also belong to protection scope of this utility model.

Claims (6)

1. A prefabricated stair conversion beam, including a beam body (1), characterized in that: the upper surface of the beam body (1) is provided with two installation grooves (2), and the front and rear ends of the installation grooves (2) extend respectively To the front and rear surfaces of the beam body (1), four sockets (3) are provided on the inner lower surface of the installation groove (2). The four sockets (3) are divided into two groups. The installation groove (2) There is a sliding block (4) slidingly connected inside, and two chute (5) are provided on the upper surface of the beam body (1). The two chute (5) are respectively located in the two installation grooves ( 2) On the opposite side, the inside of the chute (5) is connected with the inside of the installation groove (2). An inner groove (8) is provided on the rear surface of the chute (5). The chute (5) ) is connected to a screw (6) for co-rotation with the inner groove (8). The outer surface of the screw (6) is located inside the chute (5) and is threadedly connected to a slider (7). The slider (7) Fixedly connected to the moving block (4), the outer surface of the screw (6) is located inside the inner groove (8), and a worm gear (9) is fixed therein. The inner groove (8) is located inside the worm gear. (9) A worm (10) is rotatably connected below, and the worm (10) is meshed with the worm wheel (9). Rotating blocks (11) are embedded on the left and right sides of the installation groove (2). The worm (10) One end away from the worm gear (9) is fixedly connected to the rotor block (11). 2. A prefabricated stair conversion beam according to claim 1, characterized in that: the two moving blocks (4) are provided with inner cavities (12) on opposite sides, and the beam body (1) is provided with an internal cavity (12). Through slot (13), a toothed plate (14) is slidably connected to the front and rear of the through slot (13), and a gear (15) is rotatably connected to the lower surface of the through slot (13). The gear (15) A rotating drum (16) is fixed at the center of the upper surface, and a sinking groove (18) is provided on the upper surface of the beam body (1). The top of the rotating drum (16) penetrates to the inner lower surface of the sinking groove (18). A plurality of through-holes (17) are provided on the outer surface of the rotating drum (16), and the inside of the rotating drum (16) is connected with the inside of the through-groove (13) through the through-holes (17). 3. A prefabricated stair transfer beam according to claim 1, characterized in that: two tooth plates (14) are provided with a number of tooth grooves on opposite sides, and the tooth plates (14) pass through the tooth grooves. It is meshed with the gear (15). 4. A prefabricated stair transfer beam according to claim 1, characterized in that: the tooth plate (14) is adapted to the inner cavity (12). 5. A prefabricated stair transfer beam according to claim 1, characterized in that the rotating drum (16) has a hollow rectangular column structure inside. 6. A prefabricated stair conversion beam according to claim 1, characterized in that: the outer surface of the slider (7) and the inner surface of the chute (5) fit together.