Super-early-strength concrete prefabricated part

Abstract

The utility model discloses a super-early-strength concrete prefabricated part, and relates to the technical field of prefabricated stairs. The stair comprises a stair body, connecting plates are fixedly connected to the two ends of the stair body, a floor slab is in lap joint with the bottoms of the connecting plates, through holes are formed in the two sides of the top of each connecting plate, positioning columns are arranged on the two sides of the top of each floor slab, the positioning columns and the through holes are arranged in a sliding mode, and a reinforcing mechanism is arranged on the top of each floor slab. Connecting mechanisms are arranged on the two sides of the top of the floor slab, when the stair body is installed, the vertical plate can abut against a clamping block when entering an empty groove, the clamping block abuts against the vertical plate through the counter-acting force of a spring, and therefore the connecting area between the stair body and the floor slab is increased; the stair body and the floor slab are connected more tightly, the connecting stability and the bearing capacity can be improved, and the possibility of shaking in the using process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated stairs, and in particular to ultra-early-strength concrete prefabricated components. Background Art

[0002] With the continuous development of the economy and society, the population has increased significantly and people's demand for housing has become increasingly greater. At this stage, prefabricated stairs have been widely used in the field of prefabricated buildings because of their high degree of standardization, low production difficulty, and easy construction and installation.

[0003] The prefabricated stairs mentioned in the existing Chinese public patent (authorization announcement number: CN218990719U) can be prefabricated by casting the prefabricated floor slab and the prefabricated handrail as a whole, avoiding the subsequent installation of the handrail, reducing the construction process, reducing the construction difficulty, and reducing the risk of mold expansion during on-site formwork for large-span stairs, reducing the apparent flatness difference of the stairs, and effectively avoiding common quality problems such as cracking, hollowing, and cracks in the prefabricated handrails. At the same time, the flatness is good. The adjustment limit holes and protective grooves on the surface of the prefabricated handrails cooperate with the protective plates to protect the gaps in the prefabricated handrails to prevent children from passing through the gaps, reducing safety hazards, and the protective height of the protective plates can be adjusted to adapt to different scenarios.

[0004] When installing existing prefabricated stairs, most of them are lifted by a crane, and then the prefabricated floor slab is moved to the top of the floor slab, and then connected to the longitudinal assembly holes with steel bars, and finally fixed by pouring mortar. However, when lifting the prefabricated stairs, since mortar must be poured inside the longitudinal assembly holes, there is a certain gap between the steel bars and the longitudinal assembly holes. The gap may reduce the stability of the connection point, making the stairs prone to shaking during the installation process, increasing the risk of construction workers falling when going up and down the stairs. Utility Model Content

[0005] The purpose of the present application is to solve the problem that gaps may cause the stability of the connection points to be reduced, making the stairs prone to shaking during installation, and the present application provides ultra-early-strength concrete prefabricated components.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The ultra-early-strength concrete prefabricated component comprises a staircase body, both ends of the staircase body are fixedly connected with connecting plates, the bottom of the connecting plates is overlapped with a floor slab, through holes are opened on both sides of the top of the connecting plates, positioning columns are arranged on both sides of the top of the floor slab, the positioning columns and the through holes are slidably arranged, a reinforcement mechanism is arranged on the top of the floor slab, and connecting mechanisms are arranged on both sides of the top of the floor slab.

[0008] By adopting the above technical solution, the stair body is moved to the top of the floor slab, and then the stair body is driven to move downward so that the positioning column enters the interior of the through hole, and then the stair body continues to be moved downward so that the stair body and the floor slab are overlapped, and finally mortar is poured between the positioning column and the through hole to fix the prefabricated staircase to the floor slab, thereby completing the installation of the prefabricated staircase. The stability between the floor slab and the stair body can be increased by the reinforcement mechanism, and the connectivity between the two positioning columns can be improved by the connecting mechanism.

[0009] Furthermore, the reinforcement mechanism includes a vertical plate fixedly connected to the top of the floor slab, an elastic member is arranged inside the connecting plate, the elastic member is composed of a spring and a telescopic rod, the elastic member is fixedly connected to the inner wall of the empty groove, one end of the elastic member is fixedly connected to a slide plate, a side of the slide plate away from the elastic member is fixedly connected to a locking block, and the locking block is in conflict with the vertical plate.

[0010] By adopting the above technical solution, the vertical plate will resist the locking block when entering the empty groove. After the locking block is subjected to force, it will drive the sliding plate to move. The movement of the sliding plate causes the elastic part to contract. After the elastic part contracts, the spring will contract to generate elastic potential energy. The reaction force of the spring will resist the vertical plate, thereby increasing the connection area between the stair body and the floor slab.

[0011] Furthermore, a clamping groove is provided on a side of the vertical plate close to the slide plate, and the clamping block is clamped and connected to the clamping groove.

[0012] By adopting the above technical solution, the snap block and the snap groove can further improve the firmness of the connection.

[0013] Furthermore, the engaging block and the engaging groove are both configured as semicircles.

[0014] By adopting the above technical solution, the engaging block is separated from the engaging groove under the sliding action of the arc surface.

[0015] Furthermore, sliding blocks are fixedly connected to both sides of the slide plate, and sliding grooves are provided on the inner walls of both sides of the empty groove, and the sliding grooves are slidably connected to the sliding blocks.

[0016] By adopting the above technical solution, the slider and the slide groove provide a guiding function for the slide plate, making the slide plate more stable when moving.

[0017] Furthermore, the connecting mechanism includes a pouring trough opened on both sides of the top of the floor slab, the inner bottom wall of the pouring trough is fixedly connected to the positioning column, the inner bottom wall of the pouring trough is provided with a connecting hole, and a pouring trough is opened inside the floor slab, and the pouring trough is connected to the connecting hole.

[0018] By adopting the above technical solution, the connection strength between the floor slab and the stair body can be effectively enhanced through sufficient mortar pouring.

[0019] Furthermore, the connecting hole is arranged in an inclined shape.

[0020] By adopting the above technical solution, the mortar can be filled into the pouring tank.

[0021] Furthermore, a plurality of anti-slip pads are fixedly connected to the top of the stair body at equal intervals.

[0022] By adopting the above technical solution, the anti-slip mat can provide additional friction and reduce the risk of slipping for construction workers when going up and down stairs.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, when installing the stair body, the vertical plate will contact the locking block when entering the empty groove. The locking block contacts the vertical plate through the reaction force of the spring, thereby increasing the connection area between the stair body and the floor slab. By increasing the connection area, the connection between the stair body and the floor slab is made tighter, which can improve the stability and bearing capacity of the connection and reduce the possibility of shaking during use.

[0025] 2. In the present application, when pouring mortar, the staff pours the mortar into the pouring trough, connects the pouring trough with the connecting hole, allows the mortar to enter the connecting hole, and then connects the connecting hole with the pouring trough, allows the mortar to enter the pouring trough. By fully pouring the mortar, the connection strength between the floor slab and the stair body can be effectively enhanced, thereby improving the stability and bearing capacity of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the first three-dimensional structure of the prefabricated staircase in this application;

[0027] Figure 2 It is a schematic diagram of the first three-dimensional structure of the prefabricated staircase in this application;

[0028] Figure 3 It is a schematic diagram of the first cross-sectional structure of the floor slab and the staircase body in this application;

[0029] Figure 4 It is a schematic diagram of the second cross-sectional structure of the floor slab and the stair body in this application.

[0030] Description of reference numerals:

[0031] 1. Staircase body; 2. Connecting plate; 3. Floor slab; 4. Through hole; 5. Positioning column; 6. Vertical plate; 7. Empty groove; 8. Elastic part; 9. Slide plate; 10. Snap block; 11. Snap groove; 12. Pouring groove; 13. Connecting hole; 14. Pouring groove; 15. Anti-slip pad; 16. Sliding block. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiments of the present application disclose an ultra-early-strength prefabricated concrete component.

[0034] Reference Figure 1 and Figure 2 The ultra-early-strength concrete precast component includes a stair body 1, two ends of the stair body 1 are fixedly connected with connecting plates 2, the bottom of the connecting plate 2 is overlapped with a floor slab 3, through holes 4 are opened on both sides of the top of the connecting plate 2, positioning columns 5 are arranged on both sides of the top of the floor slab 3, the positioning columns 5 and the through holes 4 are slidably arranged, a reinforcement mechanism is arranged on the top of the floor slab 3, and connecting mechanisms are arranged on both sides of the top of the floor slab 3.

[0035] When installing the prefabricated stairs, first lift the stair body 1, then move the stair body 1 to the top of the floor 3, then drive the stair body 1 to move downward, so that the positioning column 5 enters the inside of the through hole 4, and then continue to move the stair body 1 downward, so that the stair body 1 and the floor 3 are overlapped, and finally pour mortar between the positioning column 5 and the through hole 4 to fix the prefabricated stairs to the floor 3, thereby completing the installation of the prefabricated stairs. The prefabricated stairs are made of ultra-early strength nucleated concrete, which has stable performance and low price. The reinforcement mechanism can increase the stability between the floor 3 and the stair body 1, and reduce the risk of shaking of the stair body 1 during installation, thereby improving the installation efficiency. When pouring mortar, the connection mechanism can make the connectivity between the two positioning columns 5 better, thereby improving the fixity and stability between the stair body 1 and the floor 3.

[0036] Reference Figure 2 and Figure 3 The reinforcement mechanism includes a vertical plate 6 fixedly connected to the top of the floor 3, an elastic member 8 is arranged inside the connecting plate 2, the elastic member 8 is composed of a spring and a telescopic rod, the elastic member 8 is fixedly connected to the inner wall of the empty groove 7, one end of the elastic member 8 is fixedly connected to a slide plate 9, and a side of the slide plate 9 away from the elastic member 8 is fixedly connected to a clamping block 10, and the clamping block 10 is in conflict with the vertical plate 6.

[0037] A clamping groove 11 is formed on one side of the vertical plate 6 close to the sliding plate 9 , and the clamping block 10 is clamped and connected with the clamping groove 11 .

[0038] In addition, the engaging block 10 and the engaging groove 11 are both configured in a semicircular shape.

[0039] In addition, sliding blocks 16 are fixedly connected to both sides of the sliding plate 9 , and sliding grooves are provided on the inner walls of both sides of the hollow groove 7 , and the sliding grooves are slidably connected to the sliding blocks 16 .

[0040] When installing the staircase body 1, the staircase body 1 moves downward, and the vertical plate 6 enters the empty groove 7. When the vertical plate 6 enters the empty groove 7, it will contact the locking block 10. After the locking block 10 is subjected to force, it will drive the slide plate 9 to move. The movement of the slide plate 9 causes the elastic member 8 to contract. After the elastic member 8 contracts, the spring contracts to generate elastic potential energy, and the reaction force of the spring contacts the vertical plate 6, thereby increasing the connection area between the staircase body 1 and the floor slab 3. By increasing the connection area, the connection between the staircase body 1 and the floor slab 3 is made tighter, which can improve the stability and bearing capacity of the connection and reduce the occurrence of The possibility of shaking is reduced by engaging the locking block 10 with the locking groove 11, so that there is a certain bite force between the locking block 10 and the vertical plate 6, which can further improve the firmness and stability of the connection. When it is necessary to lift, the locking block 10 and the locking groove 11 are set to be semicircular, and the stair body 1 is lifted upward. Under the sliding action of the arc surface of the locking groove 11, the locking block 10 moves inside the locking groove 11, so that the locking block 10 is separated from the locking groove 11. When the slide plate 9 moves, the slider 16 and the slide groove provide a guiding effect for the slide plate 9, so that the slide plate 9 is more stable when moving.

[0041] Reference Figures 2 to 4 The connecting mechanism includes a pouring trough 12 opened on both sides of the top of the floor 3, the inner bottom wall of the pouring trough 12 is fixedly connected to the positioning column 5, the inner bottom wall of the pouring trough 12 is provided with a connecting hole 13, and a pouring trough 14 is opened inside the floor 3, and the pouring trough 14 is connected to the connecting hole 13.

[0042] The connection hole 13 is arranged in an inclined shape.

[0043] When pouring mortar, the staff pours the mortar into the pouring groove 12, which is connected with the connecting hole 13 through the pouring groove 12, so that the mortar enters the connecting hole 13, and then connected with the pouring groove 14 through the connecting hole 13, so that the mortar enters the pouring groove 14. Through sufficient mortar pouring, the connection strength between the floor 3 and the stair body 1 can be effectively enhanced, thereby improving the stability and bearing capacity of the overall structure. The mortar can be filled into the pouring groove 14 by the inclined setting of the connecting hole 13.

[0044] Reference Figure 1 and Figure 2 A plurality of anti-slip pads 15 are fixedly connected to the top of the stair body 1 at equal intervals.

[0045] The anti-skid pad 15 can provide additional friction to reduce the risk of slipping of construction workers when going up and down stairs.

[0046] Working principle: first, lift the stair body 1, then move the stair body 1 to the top of the floor 3, and then drive the stair body 1 to move downward, so that the positioning column 5 enters the inside of the through hole 4, and then continue to move the stair body 1 downward, so that the stair body 1 and the floor 3 are overlapped, and finally mortar is poured between the positioning column 5 and the through hole 4 to fix the prefabricated staircase and the floor 3, thereby completing the installation of the prefabricated staircase. When installing the stair body 1, the stair body 1 moves downward at this time, and the vertical plate 6 enters the inside of the empty groove 7. When the vertical plate 6 enters the empty groove 7, it will resist the locking block 10. After the locking block 10 is subjected to force, it will drive the slide plate 9 to move. The movement of the slide plate 9 causes the elastic member 8 to contract. After the elastic member 8 contracts, the spring will contract to generate elastic potential energy, and the vertical plate 6 will be resisted by the reaction force of the spring, thereby increasing the connection area between the stair body 1 and the floor 3.

[0047] By snapping the snap block 10 and the snap groove 11 together, there is a certain bite force between the snap block 10 and the vertical plate 6, which can further improve the firmness and stability of the connection. When pouring mortar, the staff pours the mortar into the pouring groove 12, which is connected with the connecting hole 13 through the pouring groove 12, so that the mortar enters the connecting hole 13, and then connects with the pouring groove 14 through the connecting hole 13, so that the mortar enters the pouring groove 14. By fully pouring the mortar, the connectivity between the floor 3 and the stair body 1 can be effectively enhanced.

Claims

1. An ultra-early-strength concrete prefabricated component, comprising a staircase body (1), characterized in that: The two ends of the staircase body (1) are fixedly connected with connecting plates (2), the bottom of the connecting plates (2) is overlapped with a floor slab (3), through holes (4) are opened on both sides of the top of the connecting plates (2), positioning columns (5) are arranged on both sides of the top of the floor slab (3), the positioning columns (5) and the through holes (4) are slidably arranged, a reinforcing mechanism is arranged on the top of the floor slab (3), and connecting mechanisms are arranged on both sides of the top of the floor slab (3).

2. The ultra-early-strength precast concrete component according to claim 1, characterized in that: The reinforcing mechanism comprises a vertical plate (6) fixedly connected to the top of the floor slab (3); an elastic member (8) is arranged inside the connecting plate (2); the elastic member (8) is composed of a spring and a telescopic rod; the elastic member (8) is fixedly connected to the inner wall of the hollow groove (7); one end of the elastic member (8) is fixedly connected to a slide plate (9); a side of the slide plate (9) away from the elastic member (8) is fixedly connected to a locking block (10); the locking block (10) is in contact with the vertical plate (6).

3. The ultra-early-strength precast concrete component according to claim 2, characterized in that: A snap-fit ​​groove (11) is provided on a side of the vertical plate (6) close to the slide plate (9), and the snap-fit ​​block (10) is snap-fitted and connected to the snap-fit ​​groove (11).

4. The ultra-early-strength concrete prefabricated component according to claim 2, characterized in that: The engaging block (10) and the engaging groove (11) are both arranged in a semicircular shape.

5. The ultra-early-strength precast concrete component according to claim 2, characterized in that: Slide blocks (16) are fixedly connected to both sides of the slide plate (9), and slide grooves are provided on the inner walls of both sides of the hollow groove (7), and the slide grooves are slidably connected to the slide blocks (16).

6. The ultra-early-strength precast concrete component according to claim 1, characterized in that: The connection mechanism comprises a pouring trough (12) provided on both sides of the top of the floor slab (3), the inner bottom wall of the pouring trough (12) being fixedly connected to the positioning column (5), the inner bottom wall of the pouring trough (12) being provided with a connection hole (13), and a pouring trough (14) being provided inside the floor slab (3), the pouring trough (14) being connected to the connection hole (13).

7. The ultra-early-strength prefabricated concrete component according to claim 6, characterized in that: The connection hole (13) is arranged in an inclined shape.

8. The ultra-early-strength prefabricated concrete component according to claim 1, characterized in that: A plurality of anti-slip pads (15) are fixedly connected at equal intervals to the top of the staircase body (1).

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