Full grouting sleeve for connection of fabricated building steel bars

Abstract

The utility model discloses an assembly type full grouting sleeve for building steel bar connection, which comprises a sleeve body, round sockets are arranged at two ends of the sleeve body, the left side of the top of the sleeve body is fixedly connected with a slurry discharge pipe through an opening, and the right side of the top of the sleeve body is fixedly connected with a grouting pipe through an opening. The middle part of the inner wall of the sleeve body is fixedly connected with a hollow baffle plate through a fixing block. The utility model relates to the technical field of fabricated building materials. According to the full-grouting sleeve for connection of the fabricated building steel bars, the hollowed-out blocking plate is installed in the middle of the inner wall of the sleeve body, meanwhile, the multiple pieces of expansion rubber are installed in the sleeve body, and the water suction groove openings are formed in the surfaces of the expansion rubber, so that two inserted steel bars can abut against the hollowed-out blocking plate through the arrangement of the structures; and the expansion rubber can absorb water to expand, so that the density of the concrete is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled building materials, in particular to a full-grouting sleeve for connecting steel bars in assembled buildings. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories. Building components and accessories, such as floor slabs, wall panels, stairs, balconies, etc., are processed and manufactured in factories, transported to the construction site, and assembled and installed on site through reliable connection methods.

[0003] At present, the steel bar connection of prefabricated buildings is divided into full grouting sleeves and semi-grouting sleeves, wherein the semi-grouting sleeves are used for the connection of vertical steel bars, and the full grouting sleeves are used for the connection of transverse steel bars. This also results in that if a single transverse steel bar is used with a full grouting sleeve, the staff can easily inject concrete slurry into it. However, in prefabricated buildings, a large number of steel bars are pre-arranged and embedded in the interior of the beam, and when docking with another beam, several full grouting sleeves will be concentrated together, and the feed pipe of the inner full grouting sleeve will be blocked. The staff cannot quickly and conveniently inject concrete slurry, affecting the work progress. In addition, since the interior of the full grouting sleeve is through-shaped, the insertion lengths of the steel bars on both sides are inconsistent, which easily affects the quality after solidification.

[0004] Therefore, a fully grouting sleeve for prefabricated building steel bar connection is now designed to facilitate material injection and improve quality to solve such defects. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a fully grouting sleeve for connecting reinforcement bars in assembled buildings, which solves the problem that the existing fully grouting sleeves cannot be conveniently injected during centralized docking.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fully grouting sleeve for connecting prefabricated building steel bars, including a sleeve body, both ends of the sleeve body are provided with round sockets, the left side of the top of the sleeve body is fixedly connected to a grouting pipe through an opening, the right side of the top of the sleeve body is fixedly connected to a grouting pipe through an opening, and the middle part of the inner wall of the sleeve body is fixedly connected to a hollow baffle plate through a fixing block.

[0007] Preferably, an internal thread groove is provided on the inner side of the grouting pipe, a threaded pipe matched with the internal thread groove is installed on the inner side of the grouting pipe, and a material guide pipe is fixedly connected to the top end of the threaded pipe.

[0008] Preferably, the other end of the material guiding tube is fixedly connected to a docking hopper.

[0009] Preferably, both sides of the inner cavity of the sleeve body are fixedly connected with rubber sleeves used in conjunction with the round sockets through fixing blocks.

[0010] Preferably, both sides of the inner cavity of the sleeve body are fixedly connected with expansion rubbers, and a plurality of expansion rubbers are arranged at equal intervals. The surface of the expansion rubber is provided with water absorption grooves, and a plurality of water absorption grooves are provided.

[0011] Beneficial effects

[0012] The utility model provides a fully grouting sleeve for connecting steel bars in assembled buildings. Compared with existing technologies, it has the following advantages:

[0013] (1) The fully grouting sleeve for connecting steel bars in prefabricated buildings has a hollow baffle installed in the middle of the inner wall of the sleeve body, and a number of expansion rubbers are installed inside the sleeve body, and water absorption grooves are opened on the surface of the expansion rubber. The arrangement of these structures can make the two inserted steel bars press against the hollow baffle, thereby ensuring that the insertion length is the same, and the expansion rubber can absorb water and expand to increase the density of the concrete, thereby ensuring the overall quality of the subsequent building, and the rubber sleeve can effectively prevent the overflow of the concrete slurry inside the sleeve body, which is satisfactory for current use.

[0014] (2) The fully grouting sleeve for connecting steel bars of prefabricated buildings is provided with a threaded pipe installed inside the grouting pipe by using an internal thread groove, and a material guide pipe and a docking hopper are installed at one end of the threaded pipe. The arrangement of these structures enables the staff to use the material guide pipe to drag the docking hopper to the outside when several sleeve bodies are centrally docked, thereby facilitating the docking of the grouting gun and effectively improving the overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of the sleeve of the utility model;

[0017] Figure 3 This is a schematic diagram of the threaded connecting pipe, material guide pipe and docking hopper structure of the utility model.

[0018] In the figure: 1. Sleeve body; 2. Round socket; 3. Slurry discharge pipe; 4. Grouting pipe; 5. Hollow baffle; 6. Internal thread groove; 7. Threaded connecting pipe; 8. Material guide pipe; 9. Docking hopper; 10. Rubber sleeve; 11. Expansion rubber; 12. Water absorption groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 The utility model provides a technical solution: a fully grouting sleeve for connecting assembled building steel bars, comprising a sleeve body 1, round sockets 2 at both ends of the sleeve body 1, a grouting pipe 3 fixedly connected to the left side of the top of the sleeve body 1 through an opening, a grouting pipe 4 fixedly connected to the right side of the top of the sleeve body 1 through an opening, and a hollow blocking plate 5 fixedly connected to the middle part of the inner wall of the sleeve body 1 through a fixing block.

[0021] When in use, first put several sleeve bodies 1 on the cast steel bars, so that one end of the steel bar passes through the round socket 2 and the rubber sleeve 10 and touches and abuts against one side of the hollow baffle 5, and then pass the other steel bar through the inner side of the round socket 2 at the other end of the sleeve body 1 and finally abut against the other side of the hollow baffle 5.

[0022] Furthermore, an internal thread groove 6 is provided on the inner side of the grouting pipe 4, and a threaded pipe 7 for use with the internal thread groove 6 is installed on the inner side of the grouting pipe 4. The top of the threaded pipe 7 is fixedly connected to a material guide pipe 8, which is a hose. The other end of the material guide pipe 8 is fixedly connected to a docking hopper 9. Both sides of the inner cavity of the sleeve body 1 are fixedly connected to a rubber sleeve 10 for use with the round socket 2 through a fixed block. The rubber sleeve 10 is made of flexible rubber material with elasticity and contractility. Both sides of the inner cavity of the sleeve body 1 are fixedly connected to an expansion rubber 11, which is a water-absorbing expansion rubber, and several expansion rubbers 11 are equidistantly arranged. A water absorption groove 12 is provided on the surface of the expansion rubber 11, and several water absorption grooves 12 are arranged.

[0023] After the steel bars are butt-jointed, the guide tube 8 is pulled outward from the inner side of the sleeve bodies 1, and finally the butt-jointing hopper 9 is at the outermost part. Then, a grouting gun is used to butt-join the butt-jointing hopper 9 and inject concrete slurry. After the concrete slurry enters the interior of the sleeve body 1, it will quickly fill through the hollow baffle 5 to wrap the two steel bars. At the same time, after the concrete slurry is fully filled, the rubber sleeve 10 will be squeezed, so that the rubber sleeve 10 will wrap the surface of the steel bar and block the round socket 2 to ensure sealing and reduce the overflow of concrete slurry. The expansion rubber 11 and the water absorption groove 12 absorb the moisture in the concrete slurry and expand, squeezing the concrete slurry, thereby effectively improving the tightness of the concrete slurry to the steel bar after solidification.

[0024] At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.

Claims

1. A fully grouting sleeve for connecting steel bars in assembled buildings, comprising a sleeve body (1), characterized in that: Both ends of the sleeve body (1) are provided with round sockets (2); the left side of the top of the sleeve body (1) is fixedly connected to a slurry discharge pipe (3) through an opening; the right side of the top of the sleeve body (1) is fixedly connected to a grouting pipe (4) through an opening; and the middle part of the inner wall of the sleeve body (1) is fixedly connected to a hollow baffle plate (5) through a fixing block; An internal thread groove (6) is provided on the inner side of the grouting pipe (4), a threaded pipe (7) used in conjunction with the internal thread groove (6) is installed on the inner side of the grouting pipe (4), and a material guide pipe (8) is fixedly connected to the top end of the threaded pipe (7).

2. The fully grouting sleeve for connecting steel bars in an assembled building according to claim 1, characterized in that: The other end of the material guide pipe (8) is fixedly connected to a docking hopper (9).

3. The fully grouting sleeve for connecting steel bars in an assembled building according to claim 1, characterized in that: Both sides of the inner cavity of the sleeve body (1) are fixedly connected to rubber sleeves (10) used in conjunction with the round socket (2) via fixing blocks.

4. The fully grouting sleeve for connecting steel bars in an assembled building according to claim 1, characterized in that: Both sides of the inner cavity of the sleeve body (1) are fixedly connected with expansion rubbers (11), and a plurality of expansion rubbers (11) are arranged at equal intervals. The surface of the expansion rubber (11) is provided with water absorption grooves (12), and a plurality of water absorption grooves (12) are arranged.

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