Steel bar connecting device
By designing a steel bar connection device, using the combination of internal threads and external threads, the two-way adjustable connection of steel bars is achieved, solving the problem of connecting steel bars in the prior art, reducing costs and construction complexity, and improving the connection quality.
Patent Information
- Application Number
- CN202420862034.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-11
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing steel bar connection method cannot achieve the overall connection of steel bar parts, especially in prefabricated buildings, exposed steel bars cannot rotate or move partially, resulting in difficult to ensure the connection quality, high cost and complex process.
A reinforced bar connection device is designed, including a first connector, a second connector, an inner top cap and an external screw sleeve, which is connected by internal thread and external thread, allowing bidirectional adjustment to adapt to different building environments.
The two-way adjustable connection of steel bars is realized, which simplifies the connection process, reduces cost and construction complexity, and improves the connection quality.
Smart Images
Figure CN222275946U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device used for connecting steel bars in a building structure. Background Art
[0002] The mechanical connection forms of steel bars in existing building structures mainly include: cold extrusion connection and threaded connection.
[0003] Cold extrusion connection uses a steel casing with high ductility and moderate strength. By extruding the outer circle of the steel casing, the steel casing undergoes plastic deformation, and the inner hole of the steel casing tightly grips the ribbed steel bars, thereby achieving the connection of two ribbed steel bars.
[0004] Threaded connection includes tapered thread connection, upset straight thread connection and rolled straight thread connection. The two steel bars to be connected are processed by special equipment, and steel wire heads with corresponding threads are made at the ends of the two steel bars. Then, the two steel bars are connected by a connecting sleeve with corresponding internal threads to achieve steel bar connection. When connecting, the connecting sleeve needs to be screwed into one steel wire head first, and then the other steel bar is screwed into the sleeve and tightened to connect the two steel bars and transmit force. During the connection process, at least one steel bar must rotate and move axially. Therefore, the existing steel bar connection method is only suitable for single steel bar connection.
[0005] With the development of the construction industry and the continuous improvement of construction technology, steel bar component construction is gradually adopted in construction, that is, before the steel bar connection construction, multiple steel bars are made into an integral steel mesh and steel cage, and then the steel bar components are connected as a whole. In this kind of steel bar component connection construction, the steel bar can only move axially, cannot rotate, and cannot move locally. Therefore, the overall connection of steel bar components cannot be achieved using the existing steel bar connection method. For example, the prefabricated building technology is being vigorously promoted. Since the exposed steel bars of the components cannot rotate, the existing steel bar mechanical connection technology cannot achieve steel bar connection. The steel bar connection between the components in the prefabricated building can only be carried out by grouting sleeves. The grouting sleeves are expensive, the construction process is cumbersome and complicated, the quality of the grouting construction directly affects the quality of the project, and the quality of the steel bar connection is difficult to guarantee. Summary of the invention
[0006] The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a steel bar connecting device which can be adjusted in two directions to adapt to the use of steel bars in different building environments.
[0007] The technical solution adopted by the utility model to solve the above problems is:
[0008] A steel bar connection device, characterized in that it comprises a first connection piece, a second connection piece, an inner top cap and an outer screw sleeve;
[0009] The tail of the first connecting member is provided with a connecting end connected to the first steel bar, the outer ring is provided with an external thread threadedly connected to the internal thread at one end of the external screw sleeve, and the head is provided with an internal top cap connecting end;
[0010] The tail of the second connecting member is provided with a connecting end connected to the second steel bar, the diameter of which is smaller than the inner diameter of the inner cavity of the outer screw sleeve and is limited by the other end of the outer screw sleeve;
[0011] The other end of the outer screw sleeve is also provided with a through hole larger than the diameter of the second steel bar;
[0012] The inner top cap is placed between the first connecting member and the second connecting member, and is connected to the head of the first connecting member.
[0013] Preferably, a first threaded hole is provided at the connecting end of the first connecting member, and the first steel bar is threadedly connected to the first threaded hole, so that the connection is more convenient.
[0014] Preferably, a second threaded hole is provided at the connecting end of the second connecting member, and the second steel bar is threadedly connected to the second threaded hole, so that the connection is more convenient.
[0015] Preferably, the head connecting end of the first connecting member is threadedly connected to the inner top cap, so that the distance between the first connecting member and the second connecting member can be easily adjusted.
[0016] The utility model has the advantages that: since the diameter of the second connecting piece is smaller than the inner diameter of the inner cavity of the outer screw sleeve, the second connecting piece can move in the inner cavity of the outer screw sleeve, so the second steel bar can be easily adjusted to better adapt to the connection environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a steel bar connecting device according to an embodiment of the utility model. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] like Figure 1 As shown, the steel bar connecting device includes a first connecting member 1, a second connecting member 2, an inner top cap 3 and an outer screw sleeve 4.
[0020] The first connecting member 1 has a threaded hole 11 at its tail end for connecting to a first steel bar, an outer ring has an outer thread 12 threadedly connected to an inner thread at one end of an outer screw sleeve, and a head has an outer thread 13 threadedly connected to an inner thread of a top cap.
[0021] The second connecting member 2 is provided with a threaded hole 21 for connecting with the second steel bar, and the threaded hole 21 has a diameter smaller than the inner diameter of the inner cavity of the outer screw sleeve 3 and is limited by the other end 32 of the outer screw sleeve.
[0022] An internal thread 31 is arranged at one end of the inner cavity of the outer screw sleeve 3 , and the other end is a limiting end and is provided with a through hole 33 larger than the diameter of the second steel bar, which can allow the second steel bar to pass through and be connected to the second connecting member 2 .
[0023] The inner top cap 4 is placed between the first connecting member 1 and the second connecting member 2 and is threadedly connected to the head thread 13 of the first connecting member.
[0024] The first connecting member 1 is placed at one end of the inner cavity of the outer screw sleeve 3 and is threadedly connected to the inner thread 31 at one end of the inner cavity of the outer screw sleeve 3 through the outer thread 12 of the first connecting member 1 , and the first steel bar is connected to the first threaded hole 11 .
[0025] The second connecting member 2 is placed at the other end of the inner cavity of the outer screw sleeve 3 and is limited by it. The second steel bar passes through the through hole 32 and is connected to the threaded hole 21 of the second connecting member 2 .
[0026] Of course, the first connecting member 1 and the first steel bar can be connected by welding or bonding, and similarly, the second steel bar and the second connecting member 2 can be connected by welding or bonding.
Claims
1. A steel bar connection device, characterized in that: It includes a first connecting piece, a second connecting piece, an inner top cap and an outer screw sleeve; The tail of the first connecting member is provided with a connecting end connected to the first steel bar, the outer ring is provided with an external thread threadedly connected to the internal thread at one end of the external screw sleeve, and the head is provided with an internal top cap connecting end; The tail of the second connecting member is provided with a connecting end connected to the second steel bar, the diameter of which is smaller than the inner diameter of the inner cavity of the outer screw sleeve and is limited by the other end of the outer screw sleeve; The other end of the outer screw sleeve is also provided with a through hole larger than the diameter of the second steel bar; The inner top cap is placed between the first connecting member and the second connecting member, and is connected to the head of the first connecting member.
2. The steel bar connection device according to claim 1, characterized in that: A first threaded hole is arranged at the connecting end of the first connecting member, and the first steel bar is threadedly connected to the first threaded hole.
3. The steel bar connection device according to claim 1, characterized in that: A second threaded hole is arranged at the connecting end of the second connecting member, and the second steel bar is threadedly connected to the second threaded hole.
4. The steel bar connection device according to claim 1, characterized in that: The head connecting end of the first connecting member is threadedly connected to the inner top cap.