Fabricated steel bar connecting sleeve

Abstract

The utility model relates to the technical field of assembly construction, and discloses an assembly type steel bar connecting sleeve which comprises a connecting pipe and fastening assemblies arranged at the two ends of the connecting pipe, connecting rings are connected to the two ends of the connecting pipe in a threaded mode, and a heat preservation assembly is arranged in the connecting pipe. The fastening assembly comprises a pair of rotating sleeves which are arranged at one ends of a pair of connecting rings in a sleeving mode correspondingly, one end of each rotating sleeve is fixedly connected with a fastening ring, and the peripheral wall of each fastening ring is in threaded connection with a grouting sleeve; the reinforcing steel bar connecting device achieves the effect of improving the reinforcing steel bar connecting efficiency, the rotating sleeve is driven to be close to the fastening sleeve through the fastening ring, then the limiting block is pressed through the rotating sleeve, the limiting block drives the fastening blocks to slide along the sliding groove to abut against the reinforcing steel bar head, and the reinforcing steel bar head is jointly clamped and fixed through the multiple evenly-distributed fastening blocks; the efficiency and stability of steel bar connection are improved, and the problem that the efficiency and construction safety of steel bar connection are difficult to effectively improve is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly construction, in particular to an assembled steel bar connecting sleeve. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods. The prefabricated building component rebar connecting sleeve assembly is a connecting sleeve used to connect rebar when assembling prefabricated building components.

[0003] The patent with publication number CN112127550B discloses a prefabricated building component steel bar connection sleeve assembly, including a steel bar connection sleeve body, a limiting side frame and a steel bar body, the steel bar connection sleeve body is a cylindrical structure with openings at both ends, and a plug-in self-locking seat is embedded and installed at the inner center position of the steel bar connection sleeve body, and the plug-in self-locking seat is assembled to enable the base to fix the steel bar end when the steel bar body is embedded in the plug-in self-locking seat, and the limiting side frame is rotatably arranged inside the steel bar connection sleeve body through a bearing seat.

[0004] The device is provided with a plug-in self-locking seat. When the end of the steel bar body is plugged into the plug-in groove of the plug-in self-locking seat, the end of the steel bar body automatically squeezes the tail end of the adjusting side frame, so that the adjusting side frame as a whole rotates around the rotating shaft and fits the steel bar body. At this time, the self-locking protrusion at the end position of the adjusting side frame is automatically clamped in the clamping groove on the steel bar body to fix the steel bar. The operation is convenient and quick, and the work efficiency is improved.

[0005] However, the device still has the following problems: the device fixes the device and the steel bar body by mutually engaging with the coupling grooves provided on the outer peripheral wall of the steel bar body through multiple self-locking soil blocks for adjusting the position of the side frame ends, and then by rotating the limiting side frame, the limiting protrusion provided at one end of the limiting side frame is in contact with the annular ribs on the outer peripheral wall of the steel bar body to further enhance the fixing effect. In actual use, it takes a lot of manpower, material resources and time costs to open the coupling grooves on the outer peripheral wall of each steel bar, and the opening of the coupling grooves will inevitably affect the supporting effect of the steel bar, making it difficult to effectively improve the efficiency of the steel bar connection and the construction safety. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides an assembled steel bar connection sleeve, which solves the above-mentioned problem of difficulty in effectively improving the efficiency of steel bar connection and construction safety.

[0008] (II) Technical solution

[0009] To achieve the above object, the utility model provides the following technical solutions: an assembled steel bar connection sleeve, comprising a connection pipe, both ends of the connection pipe are threadedly connected with connection rings, and also comprising fastening components arranged at both ends of the connection pipe, and a heat preservation component is arranged inside the connection pipe;

[0010] The fastening assembly includes a pair of rotating sleeves respectively sleeved on one end of a pair of connecting rings, one end of each rotating sleeve is fixedly connected to a fastening ring, the outer peripheral wall of each fastening ring is threadedly connected to a grouting sleeve, one end of each grouting sleeve is fixedly connected to a fastening sleeve, a plurality of evenly distributed sliding grooves are opened on the outer peripheral wall of one end of each fastening sleeve, the inner wall of each sliding groove is slidably connected to a limiting block, one side of the inner wall of each limiting block is fixedly connected to a fastening block adapted to a steel bar head, the other end of each grouting sleeve is opened with a socket, a steel bar head is inserted in each socket, and a grouting hole is opened on one side of the outer peripheral wall of each grouting sleeve.

[0011] Preferably, one end of each of the limit blocks is slidably connected to a plurality of guide rods, and one end of each of the guide rods is fixedly connected to the inner wall of the slide groove, and the outer peripheral wall of each of the guide rods is sleeved with a spring.

[0012] Preferably, one end of each of the rotating sleeves is arranged in a frustum-shaped structure, and the rotating sleeve is adapted to the fastening sleeve and the limit block.

[0013] Preferably, the thermal insulation component comprises an anti-expansion layer arranged inside the connecting pipe, and the outer peripheral wall of the anti-expansion layer is provided with a thermal insulation layer.

[0014] Preferably, one end of each of the fastening blocks is arranged in an arc-shaped structure.

[0015] (III) Beneficial effects

[0016] 1. The assembled steel bar connection sleeve drives the rotating sleeve to approach the fastening sleeve through the fastening ring, and then presses the limit block through the rotating sleeve, so that the limit block drives the fastening block to slide along the slide groove to contact the steel bar head. The steel bar head is clamped and fixed by multiple evenly distributed fastening blocks, which improves the efficiency and stability of the steel bar connection.

[0017] 2. The assembled steel bar connection sleeve is cleverly designed, practical and efficient. The anti-expansion layer is set to prevent the concrete slurry from solidifying and bursting the connection pipe, thereby improving construction safety. The insulation layer is set to reduce the impact of the external environment on the steel bar connection, thereby improving the protective effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0019] Figure 2 This is a schematic diagram of a half-cut three-dimensional structure of some components of the utility model;

[0020] Figure 3 It is a schematic diagram of the exploded structure of some fastening components of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of some fastening components of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of part of the thermal insulation components of the present utility model.

[0023] In the figure: 1, connecting pipe; 101, insulation layer; 102, anti-expansion layer; 2, connecting ring; 3, rotating sleeve; 4, fastening ring; 5, grouting sleeve; 6, plug hole; 7, steel bar head; 8, grouting hole; 9, fastening sleeve; 10, slide groove; 11, limit block; 12, guide rod; 13, spring; 14, fastening block. DETAILED DESCRIPTION

[0024] 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.

[0025] Example: Figure 1 As shown, an assembled steel bar connecting sleeve includes a connecting pipe 1, both ends of which are threadedly connected with connecting rings 2, the connecting rings 2 are made of composite metal materials to improve the connection strength and stability, and also include fastening components arranged at both ends of the connecting pipe 1, and an insulation component is arranged inside the connecting pipe 1.

[0026] like Figure 2-Figure 4As shown, in a certain embodiment, in order to improve the connection efficiency, the fastening assembly includes a pair of rotating sleeves 3 respectively sleeved on one end of a pair of connecting rings 2, wherein the connecting rings 2 serve to facilitate the connection of the fastening assembly with the connecting pipe 1, one end of each of the rotating sleeves 3 is fixedly connected to a fastening ring 4 by bolts, and the outer peripheral wall of each of the fastening rings 4 is threadedly connected to a grouting sleeve 5, and the stability of the connection between the fastening ring 4 and the grouting sleeve 5 is improved by threaded connection, one end of each of the grouting sleeves 5 is fixedly connected to a fastening sleeve 9 by bolts, and the outer peripheral wall of one end of each of the fastening sleeves 9 is provided with a plurality of evenly distributed sliding grooves 10, and the inner wall of each of the sliding grooves 10 is slidably connected to a limiting block 11, wherein the sliding grooves 10 serve to facilitate the sliding of the limiting block 11, and one side of the inner wall of each of the limiting blocks 11 is fixedly connected A fastening block 14 adapted to the steel bar head 7 is connected, and one end of each of the fastening blocks 14 is arranged in an arc-shaped structure. The arc-shaped structure of the fastening block 14 facilitates the connection between the steel bar head 7 and the device. The other end of each of the grouting sleeves 5 is provided with a socket 6, and a steel bar head 7 is inserted in each socket 6. A grouting hole 8 is provided on one side of the outer peripheral wall of each of the grouting sleeves 5, wherein the grouting hole 8 serves to facilitate the pouring of concrete slurry. One end of each of the limit blocks 11 is slidably connected to a plurality of guide rods 12, and one end of the guide rods 12 is fixedly connected to the inner wall of the slide groove 10. The outer peripheral wall of each of the guide rods 12 is sleeved with a spring 13. Through the mutual cooperation between the guide rods 12 and the spring 13, the limit block 11 is convenient for driving the fastening block 14 to reset, thereby the secondary grouting improves the stability of the connection between the steel bar heads 7.

[0027] like Figure 3 As shown, in a certain embodiment, in order to improve the efficiency of the device in fastening steel bars, one end of each of the rotating sleeves 3 is arranged in a frustum-shaped structure, and the rotating sleeve 3 is adapted to the fastening sleeve 9 and the limit block 11, so that the rotating sleeve 3 presses the limit block 11 along the fastening sleeve 9, so that the limit block 11 drives the fastening block 14 to contact the steel bar head 7, which is convenient for fastening the steel bar head 7 and further improves the efficiency of the device in connecting steel bars.

[0028] like Figure 1 and Figure 5 As shown, in a certain embodiment, in order to improve the protective effect of the device, the thermal insulation component includes an anti-expansion layer 102 arranged inside the connecting pipe 1, wherein the anti-expansion layer 102 is made of high-strength alloy material to prevent the concrete slurry from solidifying and bursting the connecting pipe 1, thereby improving the safety of the device. The outer peripheral wall of the anti-expansion layer 102 is provided with an insulation layer 101, wherein the insulation layer 101 is made of thermal insulation material, thereby effectively reducing the influence of the external environment on the steel bar connection and improving the protective effect of the device.

[0029] Working principle: When in use, first place a pair of steel bar heads 7 along the insertion hole 6 in the grouting sleeve 5, and extend them to the inside of the connecting pipe 1, so that one end of the pair of steel bar heads 7 are in conflict with each other, and then fix the grouting sleeve 5, rotate the fastening ring 4, so that the fastening ring 4 drives the rotating sleeve 3 to approach the fastening sleeve 9, and the rotating sleeve 3 presses the limit block 11, so that the limit block 11 drives the fastening block 14 to slide along the slide groove 10 and conflict with the steel bar head 7. The steel bar head 7 is clamped and fixed by multiple evenly distributed fastening blocks 14, which improves the stability of the connection between the device and the steel bar, and avoids the steel bar tilting during the grouting process to affect the connection effect, and then through the grouting hole 8 is poured into concrete slurry. After the concrete in the connecting pipe 1 is initially formed, the fastening ring 4 and the grouting sleeve 5 are loosened to make the rotating sleeve 3 move away from the fastening sleeve 9. Then, through the cooperation between the guide rod 12 and the spring 13, the limit block 11 drives the fastening block 14 to reset. Then, the secondary grouting is performed to fill the gap to avoid affecting the connection effect. The operation is simple and the efficiency of the steel bar connection is effectively improved. Then, through the setting of the anti-expansion layer 102, the concrete slurry is prevented from solidifying and bursting the connecting pipe 1, thereby improving the construction safety. Through the setting of the thermal insulation layer 101, the influence of the external environment on the steel bar connection is reduced, thereby improving the protection effect of the device.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] 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. An assembled steel bar connection sleeve, comprising a connection pipe (1), both ends of the connection pipe (1) being threadedly connected with connection rings (2), characterized in that: It also includes fastening components arranged at both ends of the connecting pipe (1), and a heat preservation component is arranged inside the connecting pipe (1); The fastening assembly comprises a pair of rotating sleeves (3) respectively sleeved on one end of a pair of connecting rings (2); one end of each rotating sleeve (3) is fixedly connected to a fastening ring (4); the outer peripheral wall of each fastening ring (4) is threadedly connected to a grouting sleeve (5); one end of each grouting sleeve (5) is fixedly connected to a fastening sleeve (9); the outer peripheral wall of one end of each fastening sleeve (9) is provided with a plurality of evenly distributed sliding grooves (10); the inner wall of each sliding groove (10) is slidably connected to a limiting block (11); one side of the inner wall of each limiting block (11) is fixedly connected to a fastening block (14) adapted to a steel bar head (7); the other end of each grouting sleeve (5) is provided with an insertion hole (6); a steel bar head (7) is inserted into each insertion hole (6); and one side of the outer peripheral wall of each grouting sleeve (5) is provided with a grouting hole (8).

2. The assembled steel bar connection sleeve according to claim 1, characterized in that: One end of each of the limit blocks (11) is slidably connected to a plurality of guide rods (12), and one end of each of the guide rods (12) is fixedly connected to the inner wall of the slide groove (10), and the outer peripheral wall of each of the guide rods (12) is sleeved with a spring (13).

3. The assembled steel bar connection sleeve according to claim 1, characterized in that: One end of each rotating sleeve (3) is arranged in a frustum-shaped structure, and the rotating sleeve (3) is adapted to the fastening sleeve (9) and the limit block (11).

4. The assembled steel bar connection sleeve according to claim 1, characterized in that: The heat-insulating component comprises an anti-expansion layer (102) arranged inside the connecting pipe (1), and the outer peripheral wall of the anti-expansion layer (102) is provided with a heat-insulating layer (101).

5. The assembled steel bar connection sleeve according to claim 1, characterized in that: One end of each of the fastening blocks (14) is arranged in an arc-shaped structure.

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