L-shaped connecting structure for prefabricated wallboards

Abstract

The utility model provides an L-shaped connecting structure for prefabricated wallboards. The prefabricated wallboard L-shaped connecting structure comprises a bolt rod, a fastener, a first embedded sleeve embedded in the transverse wallboard and a guide hole formed in the longitudinal wallboard, the guide hole and the first embedded sleeve are horizontally aligned in the height direction Z, the guide hole penetrates through the outer surface of the longitudinal wallboard, and the first embedded sleeve and the guide hole are arranged in the longitudinal wallboard. The bolt rod is arranged in the first embedded sleeve, the bolt rod penetrates through the side wall of the guide hole and extends into the guide hole, a fastener is connected to the extending end of the bolt rod, and the fastener abuts against the side wall. The first pre-embedded sleeve is pre-embedded in the transverse wallboard, and the bolt rod penetrates through the first pre-embedded sleeve and extends into the guide hole in the longitudinal wallboard, so that the longitudinal wallboard and the transverse wallboard are connected into a whole, the assembling work content is greatly simplified, and the steel consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to an L-shaped connection structure for precast wall panels. Background Art

[0002] In prefabricated buildings, for the butt joint of a transverse wall panel and a longitudinal wall panel in an L shape, the connection methods of the butt-jointed transverse wall panel and longitudinal wall panel include dry connection and wet connection. Among them, the wet connection means that reinforcing bars are embedded and extended in two wall panels, and the extended reinforcing bars are arranged in the height direction of the wall panels. The extended reinforcing bars of the two are overlapped and then bundled with stirrups to form a skeleton, and finally concrete is cast at the skeleton to connect the two wall panels into one body. The dry connection means that connectors are used on the outer surfaces of the two butt-jointed wall panels, and then bolts are used to connect the connectors to the wall panels. The above-mentioned wet connection uses more steel and the prefabrication process is relatively complex; the above-mentioned dry connection has a large amount of bolt tightening work, is cumbersome to operate, and increases the assembly strength. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an L-shaped connection structure for precast wall panels, which simplifies the operation and reduces the steel consumption.

[0004] The technical solution of the utility model is: an L-shaped connection structure for precast wall panels, which is used to connect between a transverse wall panel and a longitudinal wall panel. The transverse wall panel and the longitudinal wall panel are butt-jointed in an L shape. The L-shaped connection structure for precast wall panels includes a bolt rod, a fastener, a first embedded sleeve embedded in the transverse wall panel, and a guide hole provided in the longitudinal wall panel. The guide hole is horizontally aligned with the first embedded sleeve in the height direction Z, and the guide hole penetrates the outer surface of the longitudinal wall panel. The bolt rod is placed in the first embedded sleeve, and the bolt rod passes through the side wall of the guide hole and extends into the guide hole. A fastener is connected to the extended end of the bolt rod, and the fastener abuts against the side wall.

[0005] Preferably, a notch is provided on one side of the first embedded sleeve away from the longitudinal wall panel, and the notch penetrates the outer surface of the transverse wall panel. The bolt head of the bolt rod is placed in the notch.

[0006] Preferably, a sealing block is provided in the notch.

[0007] Preferably, a plurality of cavities are provided in the longitudinal wall panel, and heat insulation materials are arranged in each cavity. A convex block protrudes from the side wall of the cavity close to the transverse wall panel. A notch is provided on the heat insulation material in the cavity close to the transverse wall panel, and the notch and the convex block are adjacently arranged to form the guide hole. The bolt rod passes through the convex block.

[0008] Preferably, every two cavities are separated by a middle rib.

[0009] Preferably, a joint is formed between the horizontal wall panel and the vertical wall panel, and a sealing layer is provided in the joint.

[0010] Preferably, the guide hole is filled with mortar.

[0011] Preferably, a second embedded sleeve is pre-embedded in the vertical wall panel. The second embedded sleeve is horizontally aligned with the first embedded sleeve in the height direction Z, and the bolt rod extends from the second embedded sleeve into the guide hole.

[0012] Preferably, the second embedded sleeve is made of hardwood.

[0013] Compared with the related art, the beneficial effects of the present utility model are as follows:

[0014] First, a first embedded sleeve is pre-embedded in the horizontal wall panel. The bolt rod passes through the first embedded sleeve and extends into the guide hole in the vertical wall panel to connect the vertical wall panel and the horizontal wall panel into one body, greatly simplifying the assembly work content and reducing the steel consumption.

[0015] Second, the butt joint of the two wall panels no longer requires the use of connecting pieces, so that there are no connection points at the joint of the wall panels, and there is no need to construct a on-site plugging box, improving the interior roughcast effect.

[0016] Third, a convex block is provided at the guide hole. The bolt rod passes through the convex block to connect the vertical wall panel, and the connection strength of the bolt rod is enhanced through the convex block, improving the overall stability of the connection structure.

[0017] Fourth, hardwood is added to the convex block, which not only facilitates on-site drilling but also further enhances the bearing capacity of the bolt rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view structural schematic diagram of the precast wall panel L-shaped connection structure provided by the present utility model;

[0019] Figure 2 is Figure 1 partial cross-sectional schematic Figure 1 ;

[0020] Figure 3 is Figure 1 partial cross-sectional schematic Figure 2 .

[0021] In the drawings: 1, horizontal wall panel; 2, vertical wall panel; 3, middle rib; 4, notch; 5, first embedded sleeve; 6, guide hole; 7, convex block; 8, thermal insulation material; 9, plugging block; 10, bolt rod; 11, joint; 12, fastener; 13, second embedded sleeve; 14, cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. For the convenience of description, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right directions of the accompanying drawings themselves, and do not limit the structure.

[0023] Embodiment 1

[0024] As Figure 1 、 Figure 2 shown, a precast wall panel L-shaped connection structure provided in this embodiment is used to connect between a transverse wall panel 1 and a longitudinal wall panel 2. The transverse wall panel 1 and the longitudinal wall panel 2 are butted in an L shape, and a joint seam 11 is formed between the transverse wall panel 1 and the longitudinal wall panel 2.

[0025] The precast wall panel L-shaped connection structure includes a bolt rod 10, a fastener 12, a first embedded sleeve 5 embedded in the transverse wall panel 1, and a guide hole 6 provided in the longitudinal wall panel 2.

[0026] A plurality of cavities 14 are provided in the longitudinal wall panel 2, and each two of the cavities 14 are separated by a middle rib 3. Heat insulation materials 8 are provided in each of the cavities 14. A convex block 7 protrudes from the side wall of the cavity 14 close to the transverse wall panel 1. A notch is provided on the heat insulation material 8 in the cavity 14 close to the transverse wall panel 1, and the notch and the convex block 7 are arranged adjacent to each other to form the guide hole 6. An inner hole is provided in the convex block 7, and the inner hole is horizontally aligned with the guide hole 6 and the first embedded sleeve 5 in the height direction Z. The number of the guide holes 6, the convex blocks 7, and the first embedded sleeves 5 is arranged in plurality according to the height direction Z of the wall panel. The side surface of the convex block 7 forms the side wall 61 of the guide hole 6.

[0027] The guide hole 6 penetrates through the outer surface of the longitudinal wall panel 2 along the extending direction of the transverse wall panel 1. As Figure 2 shown, the through port of the guide hole 6 faces the side of the transverse wall panel 1.

[0028] A notch 4 is provided on the side of the first embedded sleeve 5 away from the longitudinal wall panel 2, and the notch 4 penetrates through the outer surface of the transverse wall panel 1 along the extending direction of the longitudinal wall panel 2.

[0029] The bolt rod 10 can be a standard part or customized, and a bolt head is provided at one end thereof. The bolt rod 10 is inserted from the notch 4, passes through the first embedded sleeve 5, passes through the inner hole in the convex block 7, and extends into the guide hole 6. Fasteners 12 (such as washers, nuts, etc.) are installed at the part where the bolt rod 10 extends into the guide hole 6, and the fasteners 12 are abutted against the side wall 61, while the bolt head of the bolt rod 10 is placed in the notch 4, and the side surface of the bolt head is abutted against the inner surface of the notch 4, thereby realizing the locking connection between the transverse wall panel 1 and the longitudinal wall panel 2.

[0030] After the installation of the bolt rod 10 is completed, mortar is filled in the guide hole 6. A plugging block 9 is filled in the notch 4, and the plugging block 9 can be made of mortar or sealant. A plugging layer is filled in the joint 11, and the plugging layer is sealant or a PE rod.

[0031] Embodiment 2

[0032] As Figure 3 shown, in this embodiment, the precast wall panel L-shaped connection structure further includes a second embedded sleeve 13, the second embedded sleeve 13 is embedded in the longitudinal wall panel 2, the second embedded sleeve 13 is horizontally aligned with the first embedded sleeve 5 in the height direction Z, and the bolt rod 10 extends from the second embedded sleeve 13 into the guide hole 6. The second embedded sleeve 13 is made of hardwood, which is convenient for drilling on-site, and the drilled hardwood forms the second embedded sleeve 13.

[0033] The utility model is applied to full prefabricated construction, can meet rapid dry connection, reduce embedded connectors while achieving reliable connection effect, can control quality, rapidly assemble, and shorten the construction period.

[0034] The above are only the embodiments of the utility model, and thus do not limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the utility model.

Claims

1. A precast wall panel L-shaped connection structure is used to connect between a transverse wall panel (1) and a longitudinal wall panel (2). The transverse wall panel (1) and the longitudinal wall panel (2) are butted to form an L shape, and it is characterized in that, It includes a bolt rod (10), a fastener (12), a first embedded sleeve (5) embedded in the transverse wall panel (1), and a guide hole (6) provided in the longitudinal wall panel (2). The guide hole (6) is horizontally aligned with the first embedded sleeve (5) in the height direction Z. The guide hole (6) penetrates the outer surface of the longitudinal wall panel (2). The bolt rod (10) is placed in the first embedded sleeve (5), and the bolt rod (10) passes through the side wall (61) of the guide hole (6) and extends into the guide hole (6). A fastener (12) is connected to the extended end of the bolt rod (10), and the fastener (12) abuts against the side wall (61).

2. The precast wall panel L-shaped connection structure according to claim 1, characterized in that, A notch (4) is provided on one side of the first embedded sleeve (5) away from the longitudinal wall panel (2). The notch (4) penetrates the outer surface of the transverse wall panel (1). The bolt head of the bolt rod (10) is placed in the notch (4).

3. The precast wall panel L-shaped connection structure according to claim 2, characterized in that, A blocking block (9) is provided in the notch (4).

4. The precast wall panel L-shaped connection structure according to claim 1, wherein, A plurality of cavities (14) are provided in the longitudinal wall panel (2). Thermal insulation materials (8) are arranged in each cavity (14). A convex block (7) protrudes from the side wall of the cavity (14) close to the transverse wall panel (1). A notch is provided on the thermal insulation material (8) in the cavity (14) close to the transverse wall panel (1). The notch and the convex block (7) are adjacently arranged to form the guide hole (6). The bolt rod (10) passes through the convex block (7).

5. The precast wall panel L-shaped connection structure according to claim 4, characterized in that Every two cavities (14) are separated by a middle rib (3).

6. The precast wall panel L-shaped connection structure according to claim 1, wherein, A joint (11) is formed between the transverse wall panel (1) and the longitudinal wall panel (2). A sealing layer is arranged in the joint (11).

7. The precast wall panel L-shaped connection structure according to claim 1, characterized in that, The guide hole (6) is filled with mortar.

8. The precast wall panel L-shaped connection structure according to any one of claims 1-7, characterized in that, A second embedded sleeve (13) is embedded in the longitudinal wall panel (2). The second embedded sleeve (13) is horizontally aligned with the first embedded sleeve (5) in the height direction Z. The bolt rod (10) extends from the second embedded sleeve (13) into the guide hole (6).

9. The precast wall panel L-shaped connection structure according to claim 8, wherein, The second embedded sleeve (13) is made of hardwood.

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