CN220747436U

CN220747436U - Reinforcing steel bar connecting piece

Info

Publication number: CN220747436U
Application number: CN202322255944.0U
Authority: CN
Inventors: 李建玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-09
Anticipated expiration: 2033-08-22

Abstract

The utility model provides a steel bar connecting piece, which belongs to the field of steel bar connecting sleeves and comprises: the inner wall of the locking inner sleeve is provided with an internal thread, the locking inner sleeve is symmetrically divided into two halves through linear cutting, the inside of the fixing outer sleeve is provided with a through hole along the length direction of the fixing outer sleeve, the diameter of the through hole is 1-5 mm larger than the outer diameter of the locking inner sleeve, and one end of the fixing outer sleeve is fixedly provided with an annular baffle plate. The locking inner sleeve can connect two steel bars to be connected together; the fixing outer sleeve can be directly sleeved on the outer side of the locking inner sleeve, so that two halves of the locking inner sleeve are fixed together, and the phenomenon that the steel bars are connected in a weak manner due to scattering is prevented.

Description

Reinforcing steel bar connecting piece

Technical Field

The utility model belongs to the technical field of steel bar connecting sleeves, and particularly relates to a steel bar connecting piece.

Background

In cast-in-situ reinforced concrete engineering construction, the connection of the steel bars with larger diameters is constructed by the traditional binding method for many years, and although the construction is simple and convenient, no skilled worker is required, the steel bars are not affected by weather, the eccentric connection of the steel bars can generate additional shear stress, and the joint transmission force effect is poor; the high density of the cloth bars can bring difficulty to pouring and vibrating, and the vibrating compactness is affected. While welding connections such as arc welding, flash welding and electroslag pressure welding are affected by a variety of factors, there are some unstable factors, such as insufficient work site capacity, unstable voltages can affect the welding quality, and factors such as gas Hou Chaoshi, too low air temperature, unstable steel chemical compositions in certain regions, and the like can also affect the joint quality.

In the document with the publication number of CN207727847U, the split type steel bar connecting cylinder comprises a split type steel bar connecting cylinder and two locking sleeves, threads are respectively arranged at two ends of the inner diameter of the split type steel bar connecting cylinder and the outer diameter of the split type steel bar connecting cylinder, and the split type steel bar connecting cylinder is wholly and symmetrically cut into two halves by wire cutting. When the device is used, the two locking sleeves are sleeved on the two steel bars respectively, then one ends of the two steel bars to be connected are butted together and provided with external threads, then the threaded heads of the two steel bars to be connected are placed into the split type steel bar connecting cylinder, and then the threads of the inner diameters of the two locking sleeves are meshed with the threads of the two ends of the outer diameter of the split type steel bar connecting cylinder through the spanner, so that the split type steel bar connecting cylinder is tightly meshed with the threaded heads of the steel bars.

However, when the file is used, the locking sleeve is required to be screwed on the split type steel bar connecting cylinder through a spanner, so that compared with the binding operation by using a binding wire, the file has the advantages of complex binding operation, time waste and efficiency reduction; and the outer wall of the locking sleeve in the document is smooth and round, so that a special spanner is needed to be used for being suitable for the locking sleeve.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, a locking sleeve is required to be screwed on a split type steel bar connecting cylinder through a spanner, compared with the binding operation by using a binding wire, the binding operation is complicated, the time is wasted and the efficiency is reduced; meanwhile, in order to solve the problem that the outer wall of the locking sleeve in the prior art is smooth and round, a special spanner is needed to be used for being applicable to the locking sleeve, and the steel bar connecting piece is provided. The steel bars are connected together through the arranged locking inner sleeve, and then the fixing outer sleeve is directly sleeved on the outer side of the locking inner sleeve, so that the locking inner sleeve is fixed on the steel bars.

The technical scheme adopted by the steel bar connecting piece is as follows:

the present utility model provides a reinforcing bar coupler, comprising: the inner wall of the locking inner sleeve is provided with an internal thread, the locking inner sleeve is symmetrically divided into two halves through linear cutting, the inside of the fixing outer sleeve is provided with a through hole along the length direction of the fixing outer sleeve, the diameter of the through hole is 1-2 mm larger than the outer diameter of the locking inner sleeve, one end of the fixing outer sleeve is fixedly provided with an annular baffle, and the inner diameter of the annular baffle is 1-5 mm smaller than the outer diameter of the locking inner sleeve.

The steel bar connecting piece can connect two steel bars to be connected together through the locking inner sleeve, and the fixing outer sleeve is directly sleeved on the outer side of the locking inner sleeve, so that the locking inner sleeve and the steel bars are tightly connected together; the locking inner sleeve can block the annular baffle when the fixing outer sleeve is directly sleeved on the outer side of the locking inner sleeve, so that the fixing outer sleeve is prevented from sliding out of the locking inner sleeve.

Further, the length of the locking inner sleeve is 100 mm, the tooth angle of the internal thread of the locking inner sleeve is 45-60 degrees, and the thread pitch of the internal thread of the locking inner sleeve is 1-5 mm.

Further, the length of the fixed outer sleeve is the same as that of the locking inner sleeve. In the further technical scheme, the length of the fixing outer sleeve is the same as that of the locking inner sleeve, so that the locking inner sleeve can be completely positioned in the fixing outer sleeve when the fixing outer sleeve is sleeved outside the locking inner sleeve.

Further, after the steel bars to be connected are locked by the locking inner sleeve, the fixing outer sleeve is sleeved outside the locking inner sleeve, and binding wires are bound at positions, close to the annular baffle plates, on the steel bars. In the further technical scheme, the fixing outer sleeve can be fixed on the reinforcing steel bar through the mutual matching of the locking inner sleeve and the binding wire, so that the fixing outer sleeve is prevented from being displaced.

The beneficial effects of the utility model are as follows: 1. in the steel bar connecting piece, the steel bars are connected together by the locking inner sleeve, the fixing outer sleeve is directly sleeved on the outer side of the locking inner sleeve to fix the locking inner sleeve on the steel bars, and the step of screwing a wrench is omitted, so that the time is saved, and the efficiency is improved; 2. the steel bar connecting piece does not need to twist a spanner, so that a special spanner is not needed, and the cost is saved.

Drawings

Fig. 1 is a schematic structural view of a reinforcing bar coupler according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view of a fixing jacket of a reinforcing bar coupler according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a reinforcing bar coupler according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a portion a of a reinforcing bar coupler according to an embodiment of the present utility model.

In the accompanying drawings: 1 represents a locking inner sleeve, 2 represents a fixing outer sleeve, 3 represents a through hole, 4 represents an annular baffle, and 5 represents a binding wire.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. In the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present utility model.

Referring to fig. 1, 2, 3 and 4, fig. 1 is a schematic structural view of a reinforcing bar coupler according to an embodiment of the present utility model, fig. 2 is a schematic sectional structural view of a fixing sleeve of a reinforcing bar coupler according to an embodiment of the present utility model, fig. 3 is a schematic structural view of a reinforcing bar coupler according to an embodiment of the present utility model when in use, and fig. 4 is a schematic sectional structural view of a portion a of a reinforcing bar coupler according to an embodiment of the present utility model. According to fig. 1, 3 and 4, the application comprises a locking inner sleeve 1, wherein the length of the locking inner sleeve 1 is 100 mm, the inner diameter of the locking inner sleeve 1 is equal to the outer diameter of a steel bar to be connected, an internal thread is arranged in the locking inner sleeve 1, the tooth angle of the internal thread is 45-60 degrees, and the thread distance of the internal thread is 1-5 mm; with continued reference to fig. 1, the locking inner sleeve 1 is cut horizontally into symmetrical upper and lower halves.

With continued reference to fig. 1, 3 and 4, the present application further includes a fixing outer sleeve 2, the length of the fixing outer sleeve 2 is the same as the length of the locking inner sleeve 1, a through hole 3 is formed in the fixing outer sleeve 2, and the diameter of the through hole 3 is 1-2 mm greater than the outer diameter of the locking inner sleeve 1; referring to fig. 2 and 4, one end of the fixing sleeve 2 is fixedly connected with an annular baffle 4, the annular baffle 4 can be fixedly connected with one end of the fixing sleeve 2 by welding, or the annular baffle 4 and the fixing sleeve 2 are integrally formed while the fixing sleeve 2 is manufactured, and the inner diameter of the annular baffle 4 is 1-5 mm smaller than the outer diameter of the locking inner sleeve 1.

The working principle of the steel bar connecting piece is as follows: firstly, selecting a proper locking inner sleeve 1 according to the diameter of a steel bar to be connected, wherein the inner diameter of the locking inner sleeve 1 is the same as the diameter of the steel bar to be connected, then opening external threads matched with the internal threads of the locking inner sleeve 1 at two ends of the two steel bars to be connected, wherein the length of the external threads on each steel bar is 50 mm, then sleeving a fixed outer sleeve 2 on any one steel bar, arranging an annular baffle 4 at one end far away from the sleeved steel bar, connecting one end of the two steel bars with the external threads, buckling two halves of the locking inner sleeve 1 on the external threads of the steel bar, forming a complete locking inner sleeve 1, then moving a fixed outer sleeve 2 towards the locking inner sleeve 1 until the fixed outer sleeve 2 is completely sleeved outside the locking inner sleeve 1, blocking the annular baffle 4 on the steel bar, binding wires 5 at positions close to the annular baffle 4, fixing the annular baffle 4 through the interaction of the binding wires 5 and the locking inner sleeve 1, and firmly fixing the annular baffle 4 on the steel bar, thus forming a complete locking inner sleeve 1, moving the fixed outer sleeve 2, and firmly fixing the steel bar 2.

In the embodiment, the utility model provides the steel bar connecting piece, wherein the steel bar connecting piece can complete the connection work of the steel bars only by completely sleeving the fixed outer sleeve outside the locking inner sleeve, so that the step of rotating a wrench is omitted, and the time is saved; in addition, the application does not need to use a spanner, thereby saving the cost of manufacturing a specially-made spanner.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.

Claims

1. A rebar junction comprising: locking endotheca (1) and fixed overcoat (2), its characterized in that: the inner wall of the locking inner sleeve (1) is provided with an internal thread, the locking inner sleeve (1) is symmetrically divided into two halves through linear cutting, the inside of the fixing outer sleeve (2) is provided with a through hole (3) along the length direction of the fixing outer sleeve, the diameter of the through hole (3) is 1-2 mm larger than the outer diameter of the locking inner sleeve (1), one end of the fixing outer sleeve (2) is fixedly provided with an annular baffle (4), and the inner diameter of the annular baffle (4) is 1-5 mm smaller than the outer diameter of the locking inner sleeve (1).

2. A reinforcing bar coupler according to claim 1, wherein the length of the locking inner sleeve (1) is 100 mm, the angle of the internal thread of the locking inner sleeve (1) is 45 ° -60 °, and the pitch of the internal thread of the locking inner sleeve (1) is 1-5 mm.

3. A reinforcing bar coupler according to claim 1, wherein the fixing outer sleeve (2) is the same length as the locking inner sleeve (1).

4. A steel bar connecting piece according to claim 1, characterized in that after the steel bar to be connected is locked by the locking inner sleeve (1), the fixing outer sleeve (2) is sleeved outside the locking inner sleeve (1), and binding wires (5) are bound on the steel bar at positions close to the annular baffle plates (4).