Steel bar positioning and connecting device

Abstract

The utility model discloses a reinforcing steel bar positioning and connecting device which comprises a connecting sleeve and more than two groups of bolt assemblies, and an annular limiting boss coaxial with the connecting sleeve is arranged on the inner wall of the middle of the connecting sleeve. The upper end face and the lower end face of the annular limiting boss are each provided with an annular step for clamping the periphery of the end face of a reinforcing steel bar, the plug pin assembly comprises a plurality of plug pins, and the plug pins evenly penetrate through the connecting sleeve in the circumferential direction of the connecting sleeve and are used for abutting against the reinforcing steel bar. According to the connecting device, even if the reinforcing steel bars or the connecting sleeves are subjected to radial acting force, under the radial limiting effect of the annular steps on the reinforcing steel bars A and the reinforcing steel bars B, the situation of eccentricity between the reinforcing steel bars and the connecting sleeves cannot occur easily, and stability is better.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a rebar positioning and connection device. Background Technology

[0002] In building construction, it is often necessary to connect two steel bars. The common method is to insert the two steel bars into a steel sleeve and then use radially inserted positioning pins to limit the steel bars, so that the steel bars and the steel sleeve are aligned on the axis. This ensures that the force transmission between the steel bars and the steel sleeve is evenly distributed and avoids stress concentration at the connection due to eccentric force.

[0003] However, in actual use, if the steel bar or steel sleeve is subjected to radial force, it can still push the radial pin to move relative to the steel sleeve, causing eccentricity between the steel bar and the steel sleeve. Therefore, the traditional connection structure is not conducive to ensuring the stability of the positioning between the steel bar and the steel sleeve. Utility Model Content

[0004] The main purpose of this utility model is to provide a rebar positioning and connection device that can avoid the rebar and sleeve being misaligned.

[0005] To achieve the above objectives, this utility model provides a rebar positioning and connection device, including a connecting sleeve and two or more sets of pin assemblies. The inner wall of the middle part of the connecting sleeve is provided with an annular limiting boss arranged coaxially with the connecting sleeve. The upper and lower end faces of the annular limiting boss are respectively provided with annular steps for the end face periphery of the rebar to engage. The pin assembly includes multiple pins, which are evenly arranged along the circumference of the connecting sleeve to abut against the rebar.

[0006] Furthermore, the upper and lower end faces of the annular limiting boss are both conical in shape with a larger outer diameter and a smaller inner diameter.

[0007] Furthermore, the cross-section of the annular step is right-angled.

[0008] Furthermore, the inner circumference of the annular step is provided with a ring of protrusions for engaging with the end face of the reinforcing bar.

[0009] Furthermore, the pin is threadedly engaged with the connecting sleeve.

[0010] Furthermore, the upper and lower ends of the connecting sleeve are respectively provided with a plurality of pin holes evenly distributed along the circumference of the connecting sleeve, and the pin is inserted into the pin holes.

[0011] Furthermore, the pin holes are arc-shaped and spirally distributed on the connecting sleeve, and the shape and size of the pin match the pin holes.

[0012] Furthermore, a handle is provided on the outside of the pin.

[0013] The beneficial effects of this utility model are reflected in:

[0014] In use, the two reinforcing bars (A and B) to be connected are inserted into the connecting sleeve from both ends, and the end faces of A and B are finally engaged within the annular step. This ensures that A and B are coaxial with the connecting sleeve. Then, the pin is pushed inward until it is in contact with the surface of A and B, achieving coaxial positioning of the connecting sleeve and A and B. With this connection method, even if the reinforcing bars or the connecting sleeve are subjected to radial force, the radial limiting effect of the annular step on A and B will prevent the reinforcing bars from easily becoming eccentric with the connecting sleeve, resulting in better stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the use of a rebar positioning and connection device according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the rebar positioning and connection device;

[0017] Figure 3 for Figure 1 A cross-sectional view of the connecting sleeve;

[0018] Figure 4 for Figure 3 A partial sectional view of the fit between the upper end face of the middle annular limiting boss and the A-reinforcing bar.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Connecting sleeve; 101. Annular limiting boss; 102. Annular step; 103. Protrusion; 104. Pin hole;

[0021] 2. Bolt; 201. Handle;

[0022] 3. A-grade steel reinforcement;

[0023] 4. B-type steel reinforcement. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] See Figures 1 to 4 .

[0026] The present invention relates to a rebar positioning and connection device, comprising a connecting sleeve 1 and two or more sets of pin assemblies. The inner wall of the middle part of the connecting sleeve 1 is provided with an annular limiting boss 101 arranged coaxially with the connecting sleeve 1. The upper and lower end faces of the annular limiting boss 101 are respectively provided with annular steps 102 for the end face periphery of the rebar to engage. The pin assembly includes a plurality of pins 2, which are evenly arranged along the circumference of the connecting sleeve 1 to abut against the rebar.

[0027] In use, the two reinforcing bars (A reinforcing bar 3 and B reinforcing bar 4) to be connected are inserted into the connecting sleeve from both ends, and the end faces of reinforcing bars A and B are finally engaged within the annular step. This ensures that reinforcing bars A and B are coaxial with the connecting sleeve. Then, the pin is pushed inward until it is in close contact with the surfaces of reinforcing bars A and B, achieving coaxial positioning of the connecting sleeve and reinforcing bars A and B. With this connection method, even if the reinforcing bars or the connecting sleeve are subjected to radial force, the radial limiting effect of the annular step on reinforcing bars A and B will prevent the reinforcing bars from easily becoming eccentric with the connecting sleeve, resulting in better stability.

[0028] In one embodiment, the upper and lower end faces of the annular limiting boss 101 are both conical in shape with a larger outer diameter and a smaller inner diameter. This design allows the A and B reinforcing bars to first abut against the upper and lower end faces of the annular limiting boss 101 during insertion into the connecting sleeve. The conical end faces act as guides, enabling the end faces of the A and B reinforcing bars to more smoothly engage with the annular step.

[0029] In one embodiment, the cross-section of the annular step 102 is right-angled. This design allows for a better fit with the periphery of the end faces of reinforcing bars A and B, resulting in a better limiting effect.

[0030] In one embodiment, the inner periphery of the annular step 102 is provided with a protrusion 103 for engaging with the end face of the reinforcing bar. The protrusion serves to provide centering support for the end faces of reinforcing bars A and B.

[0031] In one embodiment, the upper and lower ends of the connecting sleeve 1 are respectively provided with a plurality of pin holes 104 evenly distributed along the circumference of the connecting sleeve 1, and the pins 2 are inserted into the pin holes 104. This design means that a set of pin assemblies is provided at the upper and lower ends of the connecting sleeve to limit the A and B reinforcing bars, resulting in a more reasonable structural space layout.

[0032] This invention provides a pin assembly. In one embodiment, the pin 2 is a conventional round shaft pin, and the pin 2 is threadedly engaged with the connecting sleeve 1. This design makes the pin installation more secure, thereby improving the limiting effect on the A and B reinforcing bars inside the connecting sleeve.

[0033] The present invention also provides another pin assembly, wherein in one embodiment, the pin hole 104 is arc-shaped and spirally distributed on the connecting sleeve 1, and the shape and size of the pin 2 are matched with the pin hole 104. This pin structure provides a larger contact area with the A and B reinforcing bars, resulting in a better limiting effect.

[0034] In one embodiment, a handle 201 is provided on the outer side of the pin 2. The handle is used to facilitate gripping the pin.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforcing bar positioning coupling device characterised in that, The application relates to a connecting sleeve and two or more sets of pin assemblies, wherein the inner wall of the middle part of the connecting sleeve is provided with an annular limiting boss coaxially arranged with the connecting sleeve, the upper end face and the lower end face of the annular limiting boss are respectively provided with annular steps for clamping the end face periphery of a steel bar, and the pin assemblies comprise a plurality of pins which are uniformly arranged on the connecting sleeve along the circumference of the connecting sleeve and used for abutting against the steel bar.

2. The reinforcing bar locating coupling device defined in claim 1, wherein The upper end face and the lower end face of the annular limiting boss are both conical faces with a large diameter outside and a small diameter inside.

3. The reinforcing bar locating coupling device defined in claim 1, wherein The cross section of the annular step is a right angle.

4. A reinforcing bar locating and connecting device as claimed in claim 1 or 2 or 3 wherein, The inner periphery of the annular step is provided with a ring of protrusions for cooperating with the end face of the steel bar.

5. A reinforcing bar locating and connecting device as claimed in claim 1 or 2 or 3 wherein, The pin is screwed with the connecting sleeve.

6. A reinforcing bar locating and connecting device as claimed in claim 1 or 2 or 3 wherein, The upper end and the lower end of the connecting sleeve are respectively provided with a plurality of pin holes which are uniformly distributed along the circumference of the connecting sleeve, and the pin holes are arranged with the pins.

7. The reinforcing bar locating coupling device defined in claim 6, wherein The pin holes are arc-shaped and spirally arranged on the connecting sleeve, and the shape and size of the pin are matched with the pin hole.

8. The reinforcing bar locating coupling device defined in claim 7, wherein, The outer side of the pin is provided with a handle.

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