A connecting piece for prefabricated filler wall construction

Abstract

The utility model relates to the technical field of building construction, and specifically discloses a connecting piece for prefabricated infill wall construction, which comprises a connector and a pre-embedded part, the pre-embedded part is arranged perpendicularly to the side surface of the prefabricated infill wall and the cast-in-place segment, one end of the pre-embedded part is flush with the side surface of the prefabricated infill wall, the flush end of the pre-embedded part is provided with a slot in the axial direction, a section of the pre-embedded part close to the end of the slot is provided with a plug hole perpendicularly to the axial direction and is fixedly connected with a plug bar, one end of the connector extends into the slot and is sequentially provided with, in the plug-in direction, an inclined groove with an opening facing outward and used for guiding the plug bar, a jamming groove communicated with the inclined groove, and a receiving hole communicated with the jamming groove and used for accommodating the plug bar, the width of the jamming groove is smaller than the diameter of the plug bar, and the problem that the anchoring structure of the traditional prefabricated infill wall and cast-in-place segment is fixed by using the rotary clamping mode of the clamping piece and the clamping groove, but the clamping piece will fall off from the clamping groove when it is reversed, resulting in the failure of the anchoring structure, is solved.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and specifically discloses a connector for the construction of precast infill walls. Background Technology

[0002] Precast walls, as one of the main components of prefabricated buildings, include precast shear walls and precast infill walls. Traditionally, the horizontal connection between precast shear walls and cast-in-place sections relies primarily on pre-reserved reinforcing bars extending from both sides of the precast wall, which are used to anchor the wall to the cast-in-place section. However, precast infill walls, lacking horizontal reinforcing bars on their sides, typically use connecting bolts and nuts pre-embedded in the precast wall, which are screwed in on-site to achieve anchorage.

[0003] In existing technologies, to avoid the inconvenience of screwing in connecting bolts due to dense reinforcement, Chinese patent CN215053979U discloses an anchoring structure for a precast infill wall and a cast-in-place section. This structure includes embedded connectors and connecting members. The embedded connectors are rod-shaped and are embedded in the precast infill wall, perpendicular to the side where the precast infill wall connects to the cast-in-place section, with one end flush with the side of the precast infill wall. One end of the connecting member has a locking element, and the end of the embedded connector flush with the side of the precast infill wall has a slot that matches the locking element. The end of the slot has a groove that matches the locking element. The locking element of the connecting member passes through the slot and engages with the locking element of the connecting member for fixation. Anchoring between the precast infill wall and the cast-in-place section is achieved through the engagement of the groove of the embedded connector and the locking element of the connecting member.

[0004] Although the above-mentioned connectors and embedded connectors do not need to be positioned by bolts, after the connector's locking part is inserted into the slot of the embedded connector, the connector may still rotate in the opposite direction due to accidental contact, causing the locking part to fall out of the slot. As recorded in the implementation process of the above-mentioned anchoring structure, each connector needs to be pulled out once during acceptance to ensure that it is fixed in place.

[0005] This utility model provides a connector for the construction of precast infill walls to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the traditional anchoring structure between precast infill walls and cast-in-place sections is fixed by a rotating snap-fit ​​method between the snap-fit ​​component and the slot, but the snap-fit ​​component will fall off the slot when it is reversed, causing the anchoring structure to fail.

[0007] To achieve the above objectives, the basic solution of this utility model provides a connector for the construction of a precast infill wall, including a connector and an embedded part pre-embedded in the precast infill wall. The embedded part is a rod-shaped structure and is set perpendicular to the side of the precast infill wall connected to the cast-in-place section. One end of the embedded part is flush with the side of the precast infill wall. The end of the embedded part flush with the precast infill wall has a slot along the axial direction. Near the end of the slot, a section of the embedded part has an insertion hole perpendicular to the axial direction and is fixed with a reinforcing bar. One end of the connector extends into the slot and has the following openings in sequence along the insertion direction: an inclined groove with an outward opening for guiding the reinforcing bar, a retaining groove communicating with the inclined groove, and a receiving hole communicating with the retaining groove for accommodating the reinforcing bar. The width of the retaining groove is smaller than the diameter of the reinforcing bar.

[0008] Furthermore, the width of the locking groove is 0.5-1mm smaller than the diameter of the insert bar.

[0009] Furthermore, the length of the locking groove is 3mm.

[0010] Furthermore, the diameter of the receiving hole is equal to the diameter of the insert bar.

[0011] Furthermore, the end of the slot is provided with an inclined section for pressing the inclined groove inward.

[0012] Furthermore, the absolute value of the tilt angle of the inclined section is less than or equal to the absolute value of the tilt angle of the inclined groove.

[0013] Furthermore, the distance between the axis of the insert and the end of the slot is greater than or equal to the distance between the axis of the receiving hole and the end of the connector.

[0014] Furthermore, the end of the embedded part flush with the precast infill wall is also provided with an inwardly opening engagement hole coaxial with the slot, and an internal thread is provided in the engagement hole. The connecting part is rotated and limited by a connecting ring, and an external thread is formed on the connecting ring to engage with the internal thread.

[0015] Furthermore, the connecting ring is also formed with a connecting portion extending out of the meshing hole, and an anti-slip groove is opened on the outside of the connecting portion.

[0016] The principle and effect of this solution are as follows: Compared with the prior art, this utility model has an inclined groove, a locking groove and a receiving hole arranged sequentially on the connector, and a reinforcing bar is fixed in the embedded part. When the reinforcing bar is aligned with the inclined groove and the connector is inserted into the slot, the reinforcing bar is pre-guided by the outward-opening inclined groove so that it enters the locking groove. At this time, since the width of the locking groove is smaller than the diameter of the reinforcing bar, after increasing the force against the connector, the reinforcing bar enters the receiving hole through the locking groove, thus realizing the fixation of the embedded part and the connector, and realizing the anchoring of the precast infill wall and the cast-in-place section. This solves the problem that the traditional anchoring structure of the precast infill wall and the cast-in-place section is fixed by the rotation of the insert and the slot, but when the insert is reversed, it will fall off the slot, causing the anchoring structure to fail. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a connector for prefabricated infill wall construction according to an embodiment of this application is shown; Figure 2 A partial schematic diagram of a connector for prefabricated infill wall construction according to an embodiment of this application is shown; Figure 3 A schematic diagram of the connector and embedded part proposed in the embodiments of this application is shown. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] The reference numerals in the accompanying drawings include: 1. Precast infill wall; 2. Cast-in-place section; 3. Embedded part; 4. Connecting part; 5. Connecting ring; 6. Inserted bar; 7. External thread; 8. Connecting part; 9. Connecting end; 10. Inclined section; 11. Inclined groove; 12. Locking groove; 13. Receiving hole; 14. Ring groove.

[0021] A connector for the construction of precast infill walls, implementing, for example Figure 1 , Figure 2 and Figure 3 As shown: It includes connector 4 and embedded part 3. Among them, embedded part 3 is embedded in the precast infill wall 1.

[0022] The embedded part 3 is a rod-shaped structure, specifically a cylindrical structure. During the embedding process in the precast infill wall 1, the embedded part 3 is set perpendicular to the side where the precast infill wall 1 connects to the cast-in-place section 2, and the left end of the embedded part 3 is flush with the side of the precast infill wall 1.

[0023] In this embodiment, the end of the embedded connector flush with the precast infill wall 1, i.e., the left end, has a slot along the axial direction. The embedded part 3 has an insertion hole perpendicular to the axial direction near the end of the slot, and a reinforcing bar 6 is welded through the insertion hole.

[0024] Furthermore, the axis of the insertion hole is perpendicular to the axis of the embedded part 3, and the insertion hole is set parallel to the horizontal direction. Both ends of the insertion rod 6 extend out of the insertion hole. In this embodiment, the diameter of the welded insertion rod 6 is 10mm.

[0025] like Figure 2 and Figure 3 As shown, the right end of the connector 4 extends into the slot, and along the insertion direction, an inclined groove 11, a locking groove 12, and a receiving hole 13 are sequentially formed inside, creating the connecting end 9. The locking groove 12 connects the inclined groove 11 and the receiving hole 13, and the width of the locking groove 12 is 1 mm smaller than the diameter of the insert 6. Of course, in other embodiments, the width of the locking groove 12 only needs to be 0.5-1 mm smaller than the diameter of the insert 6. Furthermore, the length of the locking groove 12 is less than the diameter of the insert 6; in this embodiment, the length of the locking groove 12 is only 3 mm.

[0026] like Figure 2 and Figure 3 As shown, the opening of the inclined groove 11 faces outward, and the left end of the inclined groove 11 is tightened and locks the right end of the groove 12. The width of the right end of the inclined groove 11 is greater than the width of the left end of the inclined groove 11, and the width of the right end of the inclined groove 11 is greater than the diameter of the insert 6, which is greater than 1 mm. The overall length of the inclined groove 11 is 15 mm.

[0027] In this embodiment, the diameter of the receiving hole 13 is equal to the diameter of the insert 6. After the insert 6 passes through the inclined groove 11 and the locking groove 12 in sequence, it enters the receiving hole 13, where the receiving hole 13 receives and locks the insert 6.

[0028] Furthermore, at the end of the slot, i.e., the right end, an inclined section 10 is provided for pressing the inclined groove 11 inward. Specifically, the absolute value of the inclination angle of the inclined section 10 is equal to the absolute value of the inclination angle of the inclined groove 11. Of course, in other embodiments, the absolute value of the inclination angle of the inclined section 10 only needs to be less than or equal to the absolute value of the inclination angle of the inclined groove 11.

[0029] Furthermore, the distance between the axis of the insert 6 and the end of the slot is greater than the distance between the axis of the receiving hole 13 and the end of the connector 4. In other embodiments, these distances may be equal.

[0030] like Figure 2 and Figure 3 As shown, the end of the embedded part 3 flush with the precast infill wall 1 has an inwardly opening engagement hole. The engagement hole is coaxial with the slot, and the diameter of the engagement hole is larger than the diameter of the slot. An internal thread is formed in the engagement hole. A section of annular groove 14 is also coaxially formed on the connector 4. A rotatable connecting ring 5 is coaxially installed through the annular groove 14. An external thread 7 that engages with the internal thread is formed on the connecting ring 5. At the same time, a connecting part 8 extending out of the engagement hole is also formed on the connecting part 8. An anti-slip groove is formed on the outside of the connecting part 8. When the insert 6 enters the locking groove 12, the internal thread begins to engage with the external thread 7. The external thread 7 can be screwed into the internal thread by rotating the connecting ring 5, pushing the connector 4 into the insertion hole and pushing the insert 6 from the locking groove 12 into the receiving hole 13.

[0031] When using this utility model, the connector 4 can be inserted into the slot by horizontally aligning the insert 6 and the inclined groove 11. The insert 6 is pre-guided by the outward-opening inclined groove 11 so that it enters the locking groove 12. At this time, since the width of the locking groove 12 is smaller than the diameter of the insert 6, after increasing the force against the connector 4, the insert 6 enters the receiving hole 13 through the locking groove 12. The width of the locking groove 12 set in this utility model is only 0.5-1mm smaller than the diameter of the insert 6, and the length of the locking groove 12 is 3mm to form a structure similar to a boss. The additional force required has been verified by test to be achievable by an adult. Meanwhile, this utility model is also provided with a connecting ring 5 to assist the insertion of the reinforcing bar 6, thereby fixing the reinforcing bar 6 in the receiving hole 13, fixing the connector 4 and the embedded part 3, and anchoring the precast infill wall 1 and the cast-in-place section 2.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A connector for constructing a precast infill wall, comprising a connector and an embedded part pre-embedded in the precast infill wall, the embedded part being a rod-shaped structure, the embedded part being disposed perpendicular to the side of the precast infill wall connecting to the cast-in-place section, one end of the embedded part being flush with the side of the precast infill wall, characterized in that, The embedded part has a slot along the axial direction at one end flush with the precast infill wall. The embedded part has an insertion hole perpendicular to the axial direction at a section near the end of the slot and is fixed with a reinforcing bar. One end of the connector extends into the slot and has the following openings along the insertion direction: an inclined groove with an opening facing outward for guiding the reinforcing bar, a retaining groove connected to the inclined groove, and a receiving hole connected to the retaining groove for accommodating the reinforcing bar. The width of the retaining groove is smaller than the diameter of the reinforcing bar.

2. A connector for precast infill wall construction according to claim 1, characterized in that, The width of the locking groove is 0.5-1mm smaller than the diameter of the insert bar.

3. A connector for precast infill wall construction according to claim 2, characterized in that, The length of the locking groove is 3mm.

4. A connector for precast infill wall construction according to claim 1, characterized in that, The diameter of the receiving hole is equal to the diameter of the insert bar.

5. A connector for precast infill wall construction according to any one of claims 1 to 4, characterized in that, The end of the slot is also provided with an inclined section for pressing the inclined groove inward.

6. A connector for precast infill wall construction according to claim 5, characterized in that, The absolute value of the inclination angle of the inclined section is less than or equal to the absolute value of the inclination angle of the inclined groove.

7. A connector for precast infill wall construction according to claim 1, characterized in that, The distance between the axis of the insert and the end of the slot is greater than or equal to the distance between the axis of the receiving hole and the end of the connector.

8. A connector for precast infill wall construction according to claim 1, characterized in that, The embedded part, which is flush with the precast infill wall, also has an inwardly opening engagement hole coaxial with the slot. The engagement hole has an internal thread. The connecting part is rotated and limited by a connecting ring, and the connecting ring has an external thread that engages with the internal thread.

9. A connector for precast infill wall construction according to claim 8, characterized in that, The connecting ring is also formed with a connecting part extending out of the meshing hole, and the connecting part has an anti-slip groove.

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