A connecting device for prefabricated concrete components

Abstract

The present invention discloses a connecting device for prefabricated concrete components, which includes four upper shells. The lower surfaces of the four upper shells are all provided with lower shells. A first limiting slider is provided on one adjacent side of the upper shell and the lower shell, and a first limiting slider is welded on the front surfaces of the upper shell and the lower shell. The outer side wall of the first limiting slider is slidably connected with the inner side wall of the first limiting chute. According to the number of steel bars on the prefabricated concrete component, the upper shell and the lower shell are assembled by the first limiting slider on the first limiting chute, and then the steel bars on the prefabricated concrete component are clamped, and the steel bars on the prefabricated concrete component are uniformly grouted, which saves time and effort, improves the stability between the upper shell and the lower shell, enhances the grouting effect on the steel bars of the prefabricated concrete component, and at the same time, the grouting pipe is clamped by the arc-shaped plate and the spring, reducing the labor intensity of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of precast concrete components, and specifically to a connecting device for assembled precast concrete components. Background Technique

[0002] The technical system of prefabricated buildings is mainly based on concrete structural systems, such as prefabricated concrete frame structures, prefabricated concrete shear wall structures, etc. In prefabricated concrete structures, the steel bar connection of precast concrete components (such as beams, columns, shear walls, etc.) is the key point of prefabricated construction. Currently, the main steel bar connection methods used in precast concrete components include grouting sleeve connection and grout anchor lap connection, etc. The connecting sleeve of the grouting sleeve is manufactured by casting technology, and the connection of steel bars is completed by filling a high-strength slightly expanding cement-based material between the steel bars and the sleeve. When precast concrete is assembled, generally, the precast concrete components need to be used to butt the steel bars of the two components through the sleeve, and then grout concrete is poured into the sleeve.

[0003] In the existing connecting device for assembled precast concrete components, during the use process, when connecting precast concrete components, usually a single sleeve is used to grout the steel bars on the precast concrete components one by one. This grouting method is not only time-consuming and laborious, but also the stability between the sleeves is poor, resulting in a poor grouting and fixing effect on the steel bars on the precast concrete components. Moreover, when grouting the sleeve, it is necessary for the staff to hold the grouting pipe for grouting, which increases the labor intensity of the staff. For this reason, a connecting device for assembled precast concrete components is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a connecting device for assembled precast concrete components to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A connecting device for assembled precast concrete components, including four upper shells. The lower surfaces of the four upper shells are all provided with lower shells. A first limiting slider is opened on one adjacent side of the upper shell and the lower shell, and the front surfaces of the upper shell and the lower shell are both welded with a first limiting slider. The outer side wall of the first limiting slider is slidably connected to the inner side wall of the first limiting chute. An arc-shaped groove is opened on one adjacent side of the upper shell and the lower shell. The upper surfaces of the four upper shells are all fixedly connected with a pipe body. Four springs are symmetrically fixedly connected to the inner side wall of the pipe body. One adjacent end of the four springs is respectively fixedly connected with two arc-shaped plates. Pouring holes are opened on the upper surfaces of the four upper shells, and two slurry outlet holes are symmetrically opened on the upper surfaces of the four upper shells.

[0006] As a further preference of this technical solution: Rubber pads are bonded to one adjacent side of the two arc-shaped plates.

[0007] As a further preference of this technical solution: A sealing ring is adhesively bonded to the inner side wall of the arc-shaped groove.

[0008] As a further preference of this technical solution: Sub-buckles are fixedly connected to both sides of the upper shell, and female buckles are hinged to both sides of the lower shell, and the sub-buckles are clamped with the female buckles.

[0009] As a further preference of this technical solution: Two handles are symmetrically fixedly connected to the upper surfaces of the four upper shells.

[0010] As a further preference of this technical solution: A first threaded through hole is formed in the upper surface of the first limiting slider, and a first threaded rod is threadedly connected to the inner side wall of the first threaded through hole.

[0011] As a further preference of this technical solution: A second threaded through hole is formed in the upper surface of the upper shell, and a second threaded rod is threadedly connected to the inner side wall of the second threaded through hole.

[0012] As a further preference of this technical solution: First plate bodies are welded to the tops of the first threaded rod and the second threaded rod, a first through hole is formed in the outer side wall of the first plate body, and a rod body is slidably connected to the inner side wall of the first through hole.

[0013] As a further preference of this technical solution: Limiting plates are welded to both ends of the rod body.

[0014] As a further preference of this technical solution: Four second plate bodies are symmetrically welded to the upper surface of the upper shell, second limiting chutes are formed in the adjacent sides of the four second plate bodies, second limiting sliders are slidably connected to the inner side walls of the four second limiting chutes, two third plate bodies are fixedly connected to the adjacent sides of the four second limiting sliders respectively, and a scraping plate is fixedly connected to the lower surface of the two third plate bodies.

[0015] Compared with the prior art, the beneficial effects of the present invention are: During the use of this device, according to the number of steel bars on the precast concrete member, the upper shell and the lower shell are assembled by the first limiting slider on the first limiting chute, and then the steel bars on the precast concrete member are clamped, and the steel bars on the precast concrete member are uniformly grouted, which is time-saving and labor-saving, and improves the stability between the upper shell and the lower shell, enhances the grouting effect on the steel bars of the precast concrete member, and at the same time clamps the grouting pipe by the arc-shaped plate in cooperation with the spring, reducing the labor intensity of the staff. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the present invention;

[0017] Figure 2 Schematic structural diagram of the upper housing and the lower housing of the present invention;

[0018] Figure 3 Schematic structural diagram of the interior of the pipe body of the present invention;

[0019] Figure 4 Schematic structural diagram of the second plate body of the present invention;

[0020] Figure 5 Schematic structural diagram of the first plate body of the present invention;

[0021] Figure 6 of the present invention Figure 1 Enlarged schematic diagram of the structure of area A.

[0022] In the figure: 1. Upper housing; 2. Lower housing; 3. Arc-shaped groove; 4. Sealing ring; 5. First limiting sliding groove; 6. First limiting sliding block; 7. Pipe body; 8. Spring; 9. Arc-shaped plate; 10. Rubber pad; 11. Pouring hole; 12. Slurry outlet hole; 13. Sub-button; 14. Mother button; 15. Handle; 16. First threaded through hole; 17. First threaded rod; 18. First plate body; 19. First through hole; 20. Rod body; 21. Limiting plate; 22. Second plate body; 23. Second limiting sliding groove; 24. Second limiting sliding block; 25. Third plate body; 26. Scraper; 27. Second threaded through hole; 28. Second threaded rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment

[0025] Please refer to Figure 1-6, the present invention provides a technical solution: a connecting device for prefabricated concrete components, including four upper shells 1. The lower surfaces of the four upper shells 1 are all provided with lower shells 2. The adjacent sides of the upper shell 1 and the lower shell 2 are both provided with first limiting sliders 6. The front surfaces of the upper shell 1 and the lower shell 2 are both welded with first limiting sliders 6. The outer side walls of the first limiting sliders 6 are slidably connected with the inner side walls of the first limiting chutes 5. The adjacent sides of the upper shell 1 and the lower shell 2 are both provided with arc-shaped grooves 3. The upper surfaces of the four upper shells 1 are all fixedly connected with pipe bodies 7. The inner side walls of the pipe bodies 7 are symmetrically and fixedly connected with four springs 8. The adjacent ends of the four springs 8 are respectively fixedly connected with two arc-shaped plates 9. The upper surfaces of the four upper shells 1 are all provided with pouring holes 11. The upper surfaces of the four upper shells 1 are symmetrically provided with two slurry outlet holes 12.

[0026] In this embodiment, specifically: rubber pads 10 are bonded to the adjacent sides of the two arc-shaped plates 9; through the setting of the rubber pads 10, the friction between the grouting pipe and the arc-shaped plates 9 is increased, thereby improving the fixing effect on the grouting pipe.

[0027] In this embodiment, specifically: a sealing ring 4 is bonded to the inner side wall of the arc-shaped groove 3; through the setting of the sealing ring 4, the sealing performance between the steel bars on the precast concrete component and the upper shell 1 and the lower shell 2 is improved.

[0028] In this embodiment, specifically: sub-buckles 13 are fixedly connected to both sides of the upper shell 1, and mother-buckles 14 are hinged to both sides of the lower shell 2. The sub-buckles 13 are clamped with the mother-buckles 14; through the setting of the clamping of the sub-buckles 13 and the mother-buckles 14, the positions of the upper shell 1 and the lower shell 2 are fixed.

[0029] In this embodiment, specifically: two handles 15 are symmetrically and fixedly connected to the upper surfaces of the four upper shells 1; through the setting of the handles 15, it is convenient to move the position of the upper shell 1.

[0030] In this embodiment, specifically: a first threaded through hole 16 is opened on the upper surface of the first limiting slider 6, and a first threaded rod 17 is threadedly connected to the inner side wall of the first threaded through hole 16; through the setting of the first threaded rod 17, the first limiting slider 6 on the upper shell 1 and the lower shell 2 is fixed.

[0031] In this embodiment, specifically: a second threaded through hole 27 is opened on the upper surface of the upper shell 1, and a second threaded rod 28 is threadedly connected to the inner side wall of the second threaded through hole 27; through the setting of the second threaded rod 28, the upper shell 1 and the lower shell 2 are further fixed.

[0032] In this embodiment, specifically: first plate bodies 18 are welded to the tops of the first threaded rod 17 and the second threaded rod 28. First through holes 19 are formed in the outer side walls of the first plate bodies 18. Rod bodies 20 are slidably connected to the inner side walls of the first through holes 19. Through the arrangement of the rod bodies 20, the rod bodies 20 are slidably adjusted in the first through holes 19, and the rod bodies 20 are rotated to drive the first plate bodies 18 to rotate, so as to facilitate driving the first threaded rod 17 and the second threaded rod 28 to rotate.

[0033] In this embodiment, specifically: limiting plates 21 are welded to both ends of the rod bodies 20; the limiting plates 21 prevent the rod bodies 20 from sliding out of the first through holes 19.

[0034] In this embodiment, specifically: four second plate bodies 22 are symmetrically welded to the upper surface of the upper housing 1. Second limiting sliding grooves 23 are formed in one side of the four adjacent second plate bodies 22. Second limiting sliding blocks 24 are slidably connected to the inner side walls of the four second limiting sliding grooves 23. Two third plate bodies 25 are fixedly connected to one side of the four adjacent second limiting sliding blocks 24. A scraping plate 26 is fixedly connected to the lower surface of the two third plate bodies 25. Through the arrangement of the scraping plate 26, the third plate bodies 25 are slid in the second limiting sliding grooves 23 through the second limiting sliding blocks 24 to drive the scraping plate 26 to move, so as to facilitate cleaning the slurry flowing out of the slurry outlet holes 12 and prevent the slurry from blocking the slurry outlet holes 12.

[0035] Working principle or structural principle: During use, according to the number of steel bars on the precast concrete member, the upper housing 1 and the lower housing 2 are slid through the first limiting sliding blocks 6 in the first limiting sliding grooves 5, and then the upper housing 1 and the lower housing 2 are used to clamp the steel bars on the precast concrete member. The male buckle 13 and the female buckle 14 are snapped together to initially fix the positions of the upper housing 1 and the lower housing 2. Then the first threaded rod 17 is rotated in the first threaded through hole 16 to fix the first limiting sliding blocks 6 on the upper housing 1 and the lower housing 2. The second threaded rod 28 is rotated in the second threaded through hole 27 to further fix the upper housing 1 and the lower housing 2. The grouting pipe is inserted into the pouring hole 11. At the same time, the grouting pipe pushes the spring 8, and the reaction force of the spring 8 squeezes the arc-shaped plate 9 to fix the grouting pipe. After grouting, the slurry flows out of the slurry outlet holes 12. The third plate bodies 25 are slid in the second limiting sliding grooves 23 through the second limiting sliding blocks 24 to drive the scraping plate 26 to move, so as to facilitate cleaning the slurry flowing out of the slurry outlet holes 12 and prevent the slurry from blocking the slurry outlet holes 12.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting device for prefabricated concrete components, comprising four upper shells (1), characterized in that: The lower surfaces of the four upper shells (1) are all provided with lower shells (2). On one adjacent side of the upper shell (1) and the lower shell (2), a first limiting sliding groove (5) is opened. On the front surfaces of the upper shell (1) and the lower shell (2), a first limiting sliding block (6) is welded. The outer side wall of the first limiting sliding block (6) is slidably connected with the inner side wall of the first limiting sliding groove (5). On one adjacent side of the upper shell (1) and the lower shell (2), an arc-shaped groove (3) is opened. On the upper surfaces of the four upper shells (1), a pipe body (7) is fixedly connected. On the inner side wall of the pipe body (7), four springs (8) are symmetrically fixedly connected. The adjacent ends of the four springs (8) are respectively fixedly connected with two arc-shaped plates (9). On the upper surfaces of the four upper shells (1), a pouring hole (11) is opened. On the upper surfaces of the four upper shells (1), two slurry outlet holes (12) are symmetrically opened; On the upper surface of the first limiting sliding block (6), a first threaded through hole (16) is opened. The inner side wall of the first threaded through hole (16) is threadedly connected with a first threaded rod (17); On the upper surface of the upper shell (1), a second threaded through hole (27) is opened. The inner side wall of the second threaded through hole (27) is threadedly connected with a second threaded rod (28); On the tops of the first threaded rod (17) and the second threaded rod (28), a first plate body (18) is welded. On the outer side wall of the first plate body (18), a first through hole (19) is opened. The inner side wall of the first through hole (19) is slidably connected with a rod body (20); On both ends of the rod body (20), a limiting plate (21) is welded; On the upper surface of the upper shell (1), four second plate bodies (22) are symmetrically welded. On one adjacent side of the four second plate bodies (22), a second limiting sliding groove (23) is opened. The inner side walls of the four second limiting sliding grooves (23) are all slidably connected with a second limiting sliding block (24). On one adjacent side of the four second limiting sliding blocks (24), two third plate bodies (25) are respectively fixedly connected. On the lower surface of the two third plate bodies (25), a scraping plate (26) is fixedly connected.

2. The connecting device for an assembled precast concrete component according to claim 1, characterized in that: On one adjacent side of the two arc-shaped plates (9), a rubber pad (10) is bonded; 3. The connecting device for an assembled precast concrete member according to claim 1, characterized in that: On the inner side wall of the arc-shaped groove (3), a sealing ring (4) is bonded; 4. The connecting device for an assembled precast concrete component according to claim 1, characterized in that: On both sides of the upper shell (1), a male buckle (13) is fixedly connected. On both sides of the lower shell (2), a female buckle (14) is hinged. The male buckle (13) is clamped with the female buckle (14); 5. The connecting device for an assembled precast concrete component according to claim 1, characterized in that: On the upper surfaces of the four upper shells (1), two handles (15) are symmetrically fixedly connected.

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