A joint connection device

Abstract

The application relates to the field of prefabricated concrete component assembly construction, in particular to a joint connecting device which comprises the following: the end surface of the connecting frame is rectangular, the long edges of the end surface of the connecting frame are provided with bent parts one at both ends, the bent parts one form assembly grooves; pre-bent steel bars are equidistantly arranged on the connecting frame; the middle part of the pre-bent steel bar is provided with a bent part two, the two ends of the pre-bent steel bar are respectively provided with anchoring parts one and two, the bent part two is arranged in parallel with the anchoring parts one and two, respectively penetrates through the connecting frame, the slot opening of the assembly groove faces the bent part one, and the anchoring parts one and two are arranged in the longitudinal direction relative to the connecting frame; the middle part of the anchoring part one is provided with a bent part three, a transition arc one is arranged between the bent part three and the anchoring part one; the middle part of the anchoring part two is provided with a bent part four, a transition arc two is arranged between the bent part four and the anchoring part two; the bent part three is arranged above the bent part four in parallel and in the transverse direction relative to the connecting frame, and the bent part three and the bent part four have a gap therebetween.

Description

Technical Field

[0001] This application relates to the field of precast concrete component assembly construction, and in particular to a joint connection device. Background Technology

[0002] In prefabricated assembled buildings, narrow-body wall panels are widely used, and the reliability of their joint connections directly affects the structural stability. When existing joint connection steel bars are adapted to this wall panel, the connection method of first casting U-shaped or open-end straight steel bars is often adopted, which has obvious shortcomings.

[0003] The existing connection device lacks an effective protective structure, the steel bars are easily bumped and deformed, and the concrete is easily penetrated, which can lead to poor anchorage and stress concentration at the bends, making it difficult to adapt to the space and load-bearing requirements of narrow wall panels.

[0004] Therefore, a new joint connection device is needed to solve the problem that existing connection devices are difficult to adapt to the joint connection of narrow wall panels. Utility Model Content

[0005] The purpose of this application is to provide a joint connection device that solves the problem that existing connection devices are difficult to adapt to the joint connection of narrow wall panels.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions: The end face of the connecting frame is rectangular. One end face has two bent sections at its long sides, forming an assembly groove. Pre-bent reinforcing bars are equidistantly arranged on the connecting frame. A second bent section is located in the middle of the pre-bent reinforcing bars. Anchoring sections one and two are located at the ends of the pre-bent reinforcing bars, respectively. The second bent section makes anchoring sections one and two parallel. Anchoring sections one and two pass through the connecting frame, with the opening of the assembly groove facing the first bent section. Anchoring sections one and two are arranged longitudinally relative to the connecting frame. A third bent section is located in the middle of the first anchoring section, with a transition arc one between the third bent section and the first anchoring section. A fourth bent section is located in the middle of the second anchoring section, with a transition arc two between the fourth bent section and the second anchoring section. The third bent section is located above the fourth bent section, and is parallel to the fourth bent section and arranged laterally relative to the connecting frame. A gap exists between the third bent section and the fourth bent section.

[0007] Furthermore, the two ends of the short side of one end face of the connecting frame are provided with bending parts five, which cooperate with bending parts one to form a protective sleeve.

[0008] Furthermore, anchor part one and anchor part two are vertically arranged on the connecting frame.

[0009] Furthermore, the second bending section includes bending arcs symmetrically arranged at both ends.

[0010] Furthermore, the number of pre-bent steel bars is eight.

[0011] Furthermore, the radius of curvature of the bending arc is 5.5 times the diameter of the reinforcing bar.

[0012] Furthermore, the center distance between anchorage part one and anchorage part two is 6.5 times the diameter of the reinforcing bar.

[0013] Furthermore, the transition arc is located in the middle of the anchorage section.

[0014] Furthermore, the length of the first bend is four times the width of the first bend, and the width of the first bend is the same as the diameter of the pre-bent steel bar.

[0015] Furthermore, the radius of curvature of transition arc one and transition arc two is 5.5 times the diameter of the reinforcing bar.

[0016] Furthermore, the inner side of the bending part five fits against the side wall of the assembly groove.

[0017] By setting up a bending section to form an assembly groove to adapt to the assembly space of the narrow wall panel and to protect the reinforcing steel during transportation and prefabrication; by setting up pre-bent reinforcing steel, and setting up a bending section two on the pre-bent reinforcing steel to transfer shear force and bending moment between components, a reliable connection between the two concrete structures is achieved to adapt to the stress requirements of the narrow wall panel; by keeping the first anchoring section and the second anchoring section parallel to improve the uniformity of anchoring force; by setting up a third bending section and a fourth bending section to adapt to the installation requirements of the narrow space; and finally by setting up a bending arc to reduce stress concentration, the joint connection of the concrete of the narrow wall panel is achieved, thereby solving the problem that the existing connection device is difficult to adapt to the joint connection of the narrow wall panel. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of a seam connection device according to an embodiment.

[0020] Figure 2 This is an exploded structural diagram of a seam connection device according to an embodiment.

[0021] Figure 3 This is a schematic diagram of the structure of the drive component of a seam connection device according to an embodiment.

[0022] Attached Figure

[0023] 1. Pre-bent steel bars; 2. Connecting frame; 101. Bending section two; 102. Anchoring section one; 103. Anchoring section two; 104. Bending section three; 105. Bending section four; 106. Transition arc one; 107. Transition arc two; 108. Gap. 201. Bending section one; 202. Assembly groove; 203. Bending section five. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other. Example

[0028] like Figure 1 and Figure 2 As shown, the device capable of solving the problem of existing connection devices being difficult to adapt to the joint connection of narrow (thin) wall panels includes: The end face of the connecting frame 2 is rectangular. A bending portion 201 is provided at both ends of the long side of one end face of the connecting frame 2, forming an assembly groove 202. Pre-bent steel bars 1 are equidistantly arranged on the connecting frame 2. A bending portion 201 is provided in the middle of the pre-bent steel bar 1. Anchoring portions 102 and 103 are respectively provided at both ends of the pre-bent steel bar 1. The bending portion 201 makes the anchoring portions 102 and 103 parallel to each other. The anchoring portions 102 and 103 pass through the connecting frame 2, so that the opening of the assembly groove 202 faces the bending portion 201, and the anchoring portions 102 and 103 are arranged longitudinally relative to the connecting frame 2, i.e., as shown in the figure. Figure 3 As shown; a bending part three 104 is provided in the middle of the anchoring part one 102, and a transition arc one 106 is provided between the bending part three 104 and the anchoring part one 102; a bending part four 105 is provided in the middle of the anchoring part two 103, and a transition arc two 107 is provided between the bending part four 105 and the anchoring part two 103; the bending part three 104 is located above the bending part four 105, and the bending part three 104 and the bending part four 105 are arranged parallel to each other and laterally relative to the connecting frame 2, and there is a gap 108 between the bending part three 104 and the bending part four 105.

[0029] By setting a bending section 201 to form an assembly groove 202 to adapt to the assembly space of the narrow wall panel, the stability of the connection structure is ensured by guaranteeing the precise assembly positioning of the pre-bent steel bar 1 and the connecting frame 2. By setting a pre-bent steel bar 1, a bending section 201 is set on the pre-bent steel bar 1 to transfer the shear force and bending moment between components, so as to realize the reliable connection of the two concrete structures to adapt to the stress requirements of the narrow wall panel. By keeping the first fixed part and the second anchoring part 103 parallel, the uniformity of the anchoring force is improved. By setting a third bending part 104 and a fourth bending part 105, the installation requirements of the narrow space are adapted, and a staggered gap 108 is formed to improve the anchoring effect. Finally, by setting a bending arc, stress concentration is reduced, and the joint connection of the concrete of the narrow wall panel is realized, thereby solving the problem of existing connection To address the problem of the connection device being difficult to adapt to the joint connection of narrow wall panels, preferably, the bending angle of the bending part three 104 is 90 degrees, and the bending angle of the bending part four 105 is 90 degrees; the center distance between the anchoring part one 102 and the anchoring part two 103 is 6 to 7 times the diameter of the steel bar; the length of the bending part one 201 is four times the width of the bending part one 201, and the width of the bending part one 201 is the same as the diameter of the pre-bent steel bar 1; the spacing between the pre-bent steel bars 1 is 17 to 18 times the diameter of the steel bar. The usage process is that the open end of the straight steel bar of the pre-bent steel bar of the joint connection device is first poured into the concrete, and the exposed U-shaped end will be connected to the second part of the concrete structure, or the U-shaped end is first poured into the structure (from the component), and the open end straight steel bar is exposed and connected to the second part of the concrete structure.

[0030] Specifically, the two ends of the short side of one end face of the connecting frame 2 are provided with bending parts 5 203. The bending parts 5 203 cooperate with the bending parts 1 201 to form a protective sleeve, which is used to protect the steel during transportation and prefabrication by forming a protective sleeve through the bending parts 5 203.

[0031] Specifically, anchoring part 102 and anchoring part 203 are vertically arranged on the connecting frame 2 to fix the precast concrete component and transfer external shear force and bending moment to the inside of the component to ensure connection reliability.

[0032] Specifically, the second bending section 101 includes symmetrically arranged bending arcs at both ends. The radius of curvature of the bending arc is 5 to 6 times the diameter of the steel bar. Preferably, the radius of curvature of the bending arc is 5.5 times the diameter of the steel bar. The radius of curvature of the first transition arc 106 and the second transition arc 107 is the same as the radius of curvature of the bending arc. This is used to reduce stress concentration in the middle of the pre-bent steel bar 1 and ensure the structural strength of the pre-bent steel bar 1. The number of pre-bent steel bars 1 is preferably eight to ensure that a balanced force system is formed in the narrow space.

[0033] Specifically, the center distance between anchorage part 102 and anchorage part 203 is 6.5 times the diameter of the steel bar. Transition arc 106 is located in the middle of anchorage part 102. The radius of curvature of transition arc 106 and transition arc 207 is 5.5 times the diameter of the steel bar, so as to ensure that the best anchorage effect can be achieved in the narrow space, taking into account both installation space and force transmission efficiency.

[0034] Specifically, the inner side of the bending part 203 fits against the side wall of the assembly groove 202.

[0035] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A seam connection device, characterized in that, include: The end face of the connecting frame is rectangular, and the long side of one end face of the connecting frame is provided with a bending part at both ends, and the bending part forms an assembly groove. Pre-bent steel bars are equidistantly arranged on the connecting frame; The pre-bent steel bar has a second bend in the middle, and anchorage part one and anchorage part two are respectively provided at both ends of the pre-bent steel bar. The second bend makes the anchorage part one and anchorage part two parallel to each other. The anchorage part one and anchorage part two pass through the connecting frame, so that the opening of the assembly groove faces the first bend. The anchorage part one and anchorage part two are arranged longitudinally relative to the connecting frame. A bending part three is provided in the middle of the anchoring part one, and a transition arc one is provided between the bending part three and the anchoring part one; A bending part four is provided in the middle of the anchoring part two, and a transition arc two is provided between the bending part four and the anchoring part two; The third bending part is located above the fourth bending part, and the third bending part and the fourth bending part are arranged laterally relative to the connecting frame, with a gap between the third bending part and the fourth bending part.

2. The joint connection device according to claim 1, characterized in that, The connecting frame has five bending portions at both ends of the short side of one end face, and the five bending portions cooperate with the first bending portion to form a protective sleeve.

3. The joint connection device according to claim 1, characterized in that, The first anchoring part and the second anchoring part are vertically arranged on the connecting frame.

4. The joint connection device according to claim 1, characterized in that, The bending section includes bending arcs symmetrically arranged at both ends.

5. The joint connection device according to claim 1, characterized in that, The number of pre-bent steel bars is eight.

6. The joint connection device according to claim 1, characterized in that, The center distance between the first anchorage and the second anchorage is 6.5 times the diameter of the reinforcing bar.

7. The joint connection device according to claim 1, characterized in that, The transition arc is located in the middle of the anchoring part.

8. The joint connection device according to claim 1, characterized in that, The length of the first bend is four times the width of the first bend, and the width of the first bend is the same as the diameter of the pre-bent steel bar.

9. The joint connection device according to claim 1, characterized in that, The radius of curvature of transition arc one and transition arc two is 5.5 times the diameter of the reinforcing bar.

10. The joint connection device according to claim 1, characterized in that, The inner side of the bending portion five is in contact with the side wall of the assembly groove.

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