Steel bar conversion connecting device

Abstract

The utility model relates to the technical field of building construction, in particular to a steel bar conversion connecting device which is used for connecting two steel bars and comprises a first sleeve, a bottom sealing ring, an adjusting ring, a fixing sleeve, a locking nut, a threaded connecting rod and a connecting sleeve. The connecting sleeve is connected with the other reinforcing steel bar, a clamping table is arranged at the other end of the connecting sleeve, the threaded connecting rod comprises an end and a connecting part, the end of the threaded connecting rod is installed in the connecting sleeve, and the end of the threaded connecting rod is limited by the clamping table and the reinforcing steel bar to move within a preset length range in the connecting sleeve; the connecting part is sequentially sleeved with a locking nut, a fixing sleeve, an adjusting ring and a bottom sealing ring. When the threaded connecting rod is used and the threaded connecting rod is not connected, the connecting part of the threaded connecting rod can move in the connecting sleeve along with the end head, part of the connecting part retracts into the connecting sleeve, and it is guaranteed that enough space does not interfere with the threaded connecting rod when the threaded connecting rod is not connected.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and specifically to a steel bar conversion connection device. Background Art

[0002] Under the background of the country's vigorous development of prefabricated buildings, the application of prefabricated concrete components in prefabricated buildings is also increasing. However, due to the complex construction site environment, insufficient component manufacturing precision, and the technical proficiency of on-site construction personnel, the product quality and installation progress of prefabricated components are difficult to control, which in turn leads to an increase in the overall cost of prefabricated buildings.

[0003] The existing connection methods of prefabricated components mainly have the following problems: traditional wet connection, large post-cast concrete area, large on-site pouring volume, many and complex anchored steel bars in the node area, and difficulties in concrete pouring, which seriously affects the overall structural quality and safety of prefabricated buildings; sleeve grouting connection, problems such as incomplete grouting, difficulty in steel bar alignment, grouting hole blocking and inability to grout, and high cost; dry connection such as bolts, weak connection strength, high requirements on component manufacturing accuracy, construction site installation accuracy, and technical level of construction personnel. Especially when two prefabricated components are connected horizontally, the installation operation is inconvenient due to limited connection space. Utility Model Content

[0004] The utility model solves the problem that it is difficult to butt joint steel bars during installation of existing prefabricated components, and provides a steel bar conversion connection device which is convenient for butt joint installation.

[0005] The utility model provides a steel bar conversion connection device for connecting two steel bars, comprising a first sleeve, a bottom ring, a fixing sleeve, a locking nut, a threaded connecting rod, and a connecting sleeve, wherein one end of the first sleeve is connected to a steel bar, and the other end of the first sleeve is provided with an internal thread for connecting to the fixing sleeve; one end of the connecting sleeve is connected to another steel bar, and the other end of the connecting sleeve is provided with a clamping platform inside; one end of the threaded connecting rod is movably installed in the connecting sleeve, and the movable space is the space between the clamping platform and the steel bar end in the connecting sleeve; the other end of the threaded connecting rod extends out of the connecting sleeve, which is provided with a locking nut, a fixing sleeve, and a bottom ring in sequence, the locking nut is threadedly connected to one end of the threaded connecting rod close to the connecting sleeve, the bottom ring is connected to the end of the other end of the threaded connecting rod, and the fixing sleeve is provided with an external thread for connecting to the first sleeve.

[0006] Preferably, an adjustment ring is provided between the bottom sealing ring and the locking nut, and the hole in the middle of the adjustment ring is a waist-shaped hole.

[0007] Preferably, the threaded connecting rod is a "T"-shaped structure, which includes an end portion and a connecting portion; the end portion is accommodated in a connecting sleeve, and the connecting portion extends out of the connecting sleeve.

[0008] Preferably, threads are provided at positions on the connection portion corresponding to the locking nut and the fixing sleeve, and the remaining portions are bare rods.

[0009] Preferably, the structure of the bottom sealing ring is a threaded sleeve or a threaded sleeve with a bottom sealed at one end.

[0010] Preferably, all positions of the connection portion of the threaded connecting rod are provided with threads.

[0011] Preferably, the inner diameter of one end of the first sleeve connected to the steel bar is smaller than the inner diameter of one end of the first sleeve connected to the fixed sleeve.

[0012] Beneficial effects:

[0013] 1. The utility model is mainly used for connecting transverse prefabricated components. When connecting transverse prefabricated components, since the distance between the two components is constant, there is less space available for adjustment during connection. It is necessary to ensure that the threaded connecting rod has enough space before connection without interference, and at the same time does not affect the connection between the two components. The connecting sleeve for adjusting the connecting rod space is prefabricated in one of the prefabricated components, saving adjustment space. When using the utility model, when the threaded connecting rod is not connected, the connecting part of the threaded connecting rod can move with the end in the connecting sleeve, and partially retract into the connecting sleeve, ensuring that there is enough space without interference when not connected.

[0014] 2. The connecting sleeve and the threaded connecting rod are embedded in one of the prefabricated components, which is convenient for construction.

[0015] 3. By adjusting the waist-shaped hole of the ring 3 and the space reserved between the inner diameter of the fixing sleeve 4 and the outer diameter of the connecting portion of the threaded connecting rod 6, an assembly tolerance can be reserved during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a connection diagram of the steel bar conversion connection device of the utility model;

[0017] Figure 2 This is an exploded view of the parts of the steel bar conversion connection device of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the steel bar conversion connection device of the utility model;

[0019] Figure 4 This is a cross-sectional view of the steel bar conversion connection device of the utility model;

[0020] Figure 5Schematic diagram of the adjustment ring of the steel bar conversion connection device of the utility model from two perspectives;

[0021] Among them: a first sleeve 1, a bottom ring 2, an adjusting ring 3, a fixing sleeve 4, a locking nut 5, a threaded connecting rod 6, a connecting sleeve 7; and a steel bar 8. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0023] like Figure 1 , 2 As shown in Figure 4, a steel bar conversion connection device is used to connect two steel bars 8, including a first sleeve 1, a bottom ring 2, an adjustment ring 3, a fixed sleeve 4, a locking nut 5, a threaded connecting rod 6, and a connecting sleeve 7, wherein one end of the first sleeve 1 is connected to a steel bar, and the other end of the first sleeve 1 is provided with an internal thread for connecting to the fixed sleeve 4; one end of the connecting sleeve 7 is connected to another steel bar, and the other end of the connecting sleeve 7 is provided with a clamping table, the threaded connecting rod 6 includes an end and a connecting part, the end is connected to one end of the connecting part, the end of the threaded connecting rod 6 is installed in the connecting sleeve 7, the connecting part extends out of the connecting sleeve 7, and the threaded connecting rod 6 The end of the connecting sleeve 7 is restricted by the clamping platform and the steel bar to move within a preset length; on the connecting part, a locking nut 5, a fixing sleeve 4, an adjusting ring 3, and a bottom ring 2 are sequentially mounted, and threads are provided on both sides of the connecting part. The threads on the end side of the connecting part are used to connect with the locking nut 5, and the threads on the other side of the connecting part are used to connect with the bottom ring 2. Threads can be provided at other positions of the connecting part, or no threads can be provided. If all the connecting parts are provided with threads, the processing of the connecting part will be more convenient, but the locking nut 5 will be rotated more times during installation, which brings inconvenience to the installation. Otherwise, the effect is the opposite. It can be selected according to needs; Figure 5 As shown, the hole in the middle of the adjusting ring 3 is a waist-shaped hole, the inner diameter of the fixing sleeve 4 is larger than the outer diameter of the connecting part of the threaded connecting rod 6, and the fixing sleeve 4 is provided with an external thread for connecting with the first sleeve 1; the structure of the bottom ring 2 is a threaded sleeve or a threaded sleeve with a bottom sealed at one end. In the present embodiment, it is a threaded sleeve with a bottom sealed at one end.

[0024] By adjusting the waist-shaped hole of the ring 3 and the space reserved between the inner diameter of the fixing sleeve 4 and the outer diameter of the connecting portion of the threaded connecting rod 6, an assembly tolerance can be reserved during installation.

[0025] The connection between the first sleeve 1, the connecting sleeve 7 and the steel bar is generally carried out through a thread connection, which belongs to the prior art, so the thread connecting the steel bar is not drawn in the figure.

[0026] In this embodiment, the inner diameters at both ends of the first sleeve 1 are inconsistent, and the inner diameter of the end connected to the fixed sleeve 4 is larger, which can achieve more convenient installation and higher strength. However, in other embodiments, the inner diameters at both ends of the first sleeve 1 are consistent and the connection effect can also be achieved.

[0027] The assembly process is as follows Figure 3 As shown:

[0028] (1) One end of the first sleeve 1 is connected to the steel bar of the prefabricated component and is embedded in the prefabricated component.

[0029] (2) The threaded connecting rod 6 is placed in the connecting sleeve 7 in advance, and then the connecting sleeve 7 is connected to the steel bar in another prefabricated component and embedded in the prefabricated component.

[0030] (3) The locking nut 5, the fixed sleeve 4, the adjusting ring 3 and the bottom ring 2 are sequentially put on the threaded connecting rod 6, so that the bottom ring 2 and the threaded connecting rod 6 are locked to prevent the locking nut 5, the fixed sleeve 4 and the adjusting ring 3 from being separated from the threaded connecting rod 6. (4) The fixed sleeve 4 and the first sleeve 1 are connected by threads;

[0031] (5) The locking nut 5 and the threaded connecting rod 6 are connected until the locking nut 5 is pressed against the left end of the connecting sleeve 7.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel bar conversion connection device for connecting two steel bars, characterized in that It includes a first sleeve, a bottom ring, a fixed sleeve, a locking nut, a threaded connecting rod, and a connecting sleeve, wherein one end of the first sleeve is connected to a steel bar, and the other end of the first sleeve is provided with an internal thread for connecting to the fixed sleeve; one end of the connecting sleeve is connected to another steel bar, and the other end of the connecting sleeve is provided with a clamp; one end of the threaded connecting rod is movably installed in the connecting sleeve, and the movable space is the space between the clamp and the end of the steel bar in the connecting sleeve; the other end of the threaded connecting rod extends out of the connecting sleeve, which is provided with a locking nut, a fixed sleeve, and a bottom ring in sequence, the locking nut is threadedly connected to one end of the threaded connecting rod close to the connecting sleeve, the bottom ring is connected to the end of the other end of the threaded connecting rod, and the fixed sleeve is provided with an external thread for connecting to the first sleeve.

2. A steel bar conversion connection device according to claim 1, characterized in that An adjusting ring is arranged between the bottom sealing ring and the locking nut, and the hole in the middle of the adjusting ring is a waist-shaped hole.

3. A steel bar conversion connection device according to claim 1, characterized in that: The threaded connecting rod is a "T"-shaped structure, which includes an end portion and a connecting portion; the end portion is accommodated in a connecting sleeve, and the connecting portion extends out of the connecting sleeve.

4. A steel bar conversion connection device according to claim 3, characterized in that: The connection part is provided with threads at positions corresponding to the locking nut and the fixing sleeve, and the remaining parts are bare rods.

5. A steel bar conversion connection device according to claim 1, characterized in that The structure of the bottom sealing ring is a threaded sleeve or a threaded sleeve with one end sealed.

6. A steel bar conversion connection device according to claim 3, characterized in that The connection part of the threaded connecting rod is provided with threads at all positions.

7. A steel bar conversion connection device according to claim 1, characterized in that The inner diameter of one end of the first sleeve connected to the steel bar is smaller than the inner diameter of one end of the first sleeve connected to the fixing sleeve.

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