Connector for abutted seam of double-sided laminated wall

Abstract

The utility model discloses a connector for a double-sided laminated wall abutted seam, which comprises a connecting rod, two ends of the connecting rod are provided with connecting ends, and the inner center of each connecting end is provided with a threaded hole; one end of the screw rod is a square end head, external threads are arranged on the outer surface of a rod body, and the other end of the screw rod is matched and connected with the threaded hole; the fixing assembly comprises an aluminum film, a steel back ridge, a steel plate and a butterfly buckle which are sequentially connected to the screw in a sleeving mode, one side of the steel back ridge compresses the aluminum film and the connecting end, the other opposite side of the steel back ridge is tightly attached to the steel plate, and internal threads of the butterfly buckle are matched and screwed with the screw, so that the steel plate, the steel back ridge, the aluminum film and the connecting end are compressed; the steel plate and the aluminum die are provided with threaded holes for the threaded rods to penetrate through. The structure is simple, construction is convenient, the problem of later-stage plugging of the splicing seam screw hole of the double-sided laminated wall can be effectively solved, and the waterproof performance and construction efficiency of the double-sided laminated wall are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of joint connection of double-sided superimposed walls, in particular to a connector used for joints of double-sided superimposed walls. Background Art

[0002] In the field of construction, tie rods are often used as the connection parts of the vertical formwork of double-sided composite walls. The steps of its use and subsequent sealing are as follows: before pouring concrete, reserve tie rod holes in the aluminum film 31 → build the aluminum film 31 on the outside of the prefabricated wall 1 → install the PVC pipe 4, and pass the tie rod 3 in the middle → fix the formwork with back ribs 6 on both sides → fix the back ribs 6 with fixing steel plates 5 → tighten the nuts that match the screws (such as Figure 1 After the concrete is poured, take out the tension screw 3 → remove the PVC pipe 4 in the screw hole → chisel the outer opening into a bell mouth 8 → fill the screw hole with micro-expansion cement mortar 7 → after the mortar is dry, apply waterproof coating on the outer opening (such as Figure 2 This process affects the construction efficiency and there is a risk of water leakage at the blocked part. In addition, due to the formwork requirements, tension screws are also required around the prefabricated components. However, the number of steel bars in the double-sided composite wall steel mesh is dense, and too many tension screws also affect the vibration during pouring.

[0003] In view of this, the purpose of this application is to develop a connector for a double-sided composite wall joint formwork to solve the problems of traditional tension screw connectors. Utility Model Content

[0004] The technical problem to be solved by the present application is that when supporting the formwork for the vertical and horizontal joints of the double-sided composite wall, the connecting parts mostly use tension screws, but the construction efficiency brought about by the use of tension screw connecting parts is low, there is a risk of leakage when the screws are sealed, and there are too many screw holes left on the prefabricated wall, which affects the vibration during pouring.

[0005] To solve the above technical problems, the present application provides a connector for the joints of double-sided overlapping walls, including: a connecting rod, connecting ends are provided at both ends of the connecting rod, and a threaded hole is opened in the center of the connecting end; a screw, one end of which is a square end, the outer surface of the screw rod body is provided with an external thread, and the end of the screw away from the square end is matched and connected with the threaded hole; a fixing component, including an aluminum film, a steel back rib, a steel plate and a butterfly buckle which are sequentially sleeved on the screw, one side of the steel back rib presses the aluminum film and the connecting end, and the other side of the steel back rib is close to the steel plate, the internal thread of the butterfly buckle is matched and tightened with the screw, thereby pressing the steel plate, the steel back rib, the aluminum film and the connecting end; the steel plate and the aluminum film are both provided with threaded holes for the screw to pass through; wherein, when the connector is used, the connecting rod is located in the wall, and the two ends of the connecting rod are fixedly connected to the wall by the screw and the fixing component respectively; the diagonal length of the square end is less than the diameter of the screw rod body.

[0006] According to an embodiment of the present application, the connecting end is a square steel block, and the width and height of the square steel block are not less than 40 mm.

[0007] According to an embodiment of the present application, the depth of the threaded hole in the square steel block is the width of the square steel block minus 10 mm, and the depth of the threaded hole is not less than 30 mm.

[0008] According to an embodiment of the present application, when the connecting rod is a long round steel, the diameter of the long round steel is not less than 14 mm.

[0009] According to the embodiment of the present application, the connecting rod and the screw rod are both long round steels made of steel with a grade not lower than Q355 round steel.

[0010] According to an embodiment of the present application, the screw rod body is threaded into a thread shape.

[0011] According to an embodiment of the present application, when connecting the horizontal seams of the double-sided composite wall, the connector is placed horizontally at the bottom seam.

[0012] According to an embodiment of the present application, when connecting the vertical seams of the double-sided composite wall, the connectors on both sides of the vertical seams are arranged vertically.

[0013] According to an embodiment of the present application, the aluminum film is an L-shaped aluminum film, and the length of the foot of the L-shaped aluminum film is the same as the width of the steel back rib.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] 1. In the prior art, when supporting the vertical and horizontal joints of the double-sided composite wall, the connecting parts are mostly tension screws, but the construction efficiency brought about by the tension screw connecting parts is low, there is a risk of leakage when the screws are blocked, and there are too many screw holes on the prefabricated wall, which affects the vibration during pouring. The connecting rod of the present application is embedded in the wall, and no holes are required for the overall pouring, and it is reserved in the cast-in-place wall. Other supporting components do not need to be reserved, and the remaining parts can be reused.

[0016] 2. The present application has a simple structure and is easy to construct. It can effectively solve the problem of late-stage plugging of screw holes in the joints of double-sided composite walls, and improve the waterproof performance and construction efficiency of double-sided composite walls.

[0017] 3. After adopting the connector of the utility model, after the concrete pouring is completed, the connecting rod is buried in the joint and does not need to be taken out, and the other parts can be removed and reused, saving manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0019] Figure 1 It is a schematic diagram of a node of a double-sided composite wall in the prior art;

[0020] Figure 2 It is another node schematic diagram of the double-sided composite wall in the prior art;

[0021] Figure 3 This is a schematic structural diagram of a connector used for a joint of a double-sided overlapping wall according to an example of the present utility model;

[0022] Figure 4 A schematic diagram of a connector used in a horizontal joint according to an example of the present utility model;

[0023] Figure 5 This is a schematic diagram of a connector according to an example of the present invention being applied to a vertical seam.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Prefabricated wall, 2. Cast-in-place composite layer, 3. Tension screws, 4. PVC pipes, 5. Fixed steel plates, 6. Back ribs, 7. Micro-expansive cement mortar, 8. Bell mouth, 10. Connecting rods, 11. Connecting ends, 20. Screws, 21. Square ends, 30. Fixed components, 31. Aluminum film, 32. Steel back ribs, 33. Steel plates, 34. Butterfly buckles. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0027] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.

[0028] like Figures 3 to 5As shown, an example of the utility model is a connector for the joints of double-sided composite walls, including a connecting rod 10, a screw rod 20 and a fixing assembly 30 for fixing the two. Compared with the prior art, the connector of the present application is integrally cast without leaving holes, and the connecting rod 10 is reserved in the cast-in-place composite layer 2, and other prefabricated components do not need to be reserved. The remaining parts can be reused, which is convenient for vibration during the casting of the cast-in-place composite layer 2, effectively avoiding water leakage, and improving construction efficiency.

[0029] In this embodiment, connecting ends 11 are provided at both ends of the connecting rod 10 , and a threaded hole is provided in the center of the connecting end 11 .

[0030] Furthermore, the connecting end 11 is a square steel block, the width and height of the square steel block are not less than 40 mm, and the square steel block is connected to the connecting rod 10 by welding.

[0031] Furthermore, the connecting rod 10 is preferably made of a long round steel with a grade not lower than Q355 round steel, and the diameter of the long round steel is not less than 14 mm.

[0032] Furthermore, the depth of the threaded hole in the square steel block is the width of the square steel block minus 10 mm, and the depth of the threaded hole is not less than 30 mm. The threaded hole has a certain depth so that the screw rod 20 can be inserted and the connection is more stable.

[0033] In this embodiment, one end of the screw rod 20 is a square end head 21 , the outer surface of the rod body of the screw rod 20 is provided with an external thread, and one end of the screw rod 20 away from the square end head 21 is matched and connected with the threaded hole.

[0034] Furthermore, the screw rod 20 is preferably made of long round steel with a steel grade not lower than Q355 round steel, and the rod body of the screw rod 20 is threaded into a thread shape, and the end is thickened into a square shape.

[0035] Furthermore, the diagonal length of the square end 21 is smaller than the diameter of the shaft of the screw rod 20 .

[0036] Furthermore, the diameter of the screw rod 20 should not be less than Φ14 mm.

[0037] In this embodiment, the fixing assembly 30 includes an aluminum film 31, a steel back rib 32, a steel plate 33 and a butterfly buckle 34 which are sequentially sleeved on the screw 20. One side of the steel back rib 32 presses the aluminum film 31 and the connecting end 11, and the other side of the steel back rib 32 is close to the steel plate 33. The internal threaded sleeve of the butterfly buckle 34 is matched with the screw 20 and tightened, thereby pressing the steel plate 33, the steel back rib 32, the aluminum film 31 and the connecting end 11; the steel plate 33 and the aluminum film 31 are provided with threaded holes for the screw 20 to pass through.

[0038] Furthermore, the aluminum film 31 may preferably be an L-shaped aluminum film, and the length of the foot of the L-shaped aluminum film is the same as the width of the steel back rib 32. The shape of the aluminum film 31 may be customized according to the wall joints of the specific application.

[0039] Furthermore, the steel back rib 32 is composed of a steel plate 33, and the specific shape of the steel back rib 32 used can be customized according to the specific application scenario, such as Figure 5 The steel back ribs 32 used in the invention are of long strip shape and L-shaped shape. One steel back rib 32 can be used by multiple groups of connectors at the same time.

[0040] In this embodiment, when the connector is in use, the connecting rod 10 is located in the wall, and both ends of the connecting rod 10 are fixedly connected to the wall through the screw rod 20 and the fixing assembly 30 respectively.

[0041] Furthermore, if Figure 4 As shown, when joining the horizontal seams of double-sided overlapped walls, the connector is placed horizontally at the bottom seam.

[0042] Furthermore, if Figure 5 As shown, when connecting the vertical joints of the double-sided composite wall, the connectors on both sides of the vertical joints are arranged vertically.

[0043] In this embodiment, Figure 4 As shown, the construction process of the connector when used in the horizontal joint is as follows: before the prefabricated component is hoisted, a new type of connector is placed at a certain interval at the bottom joint position. After the component is hoisted, an L-shaped aluminum film with a reserved threaded hole (the aperture matches the connecting rod 10) is used to seal the bottom joint on the indoor side, the threaded hole is aligned with the connecting rod 10, a steel back rib 32 is placed slightly higher than the threaded hole, and a steel plate 33 with a threaded hole is used to support the steel back rib 32 and the L-shaped aluminum film. The length of the foot of the L-shaped aluminum film is the same as the width of the steel back rib 32, and then the screw 20 is passed through the steel plate 33 to connect with the connecting rod 10. After it is completed, the bottom joint is sealed with an aluminum film 31 with a reserved threaded hole on the outdoor side, the threaded hole is aligned with the connecting rod 10, and the screw 20 is used to connect with the connecting rod 10. After tightening, two back ribs are passed through the steel rod, and the steel plate 33 with a threaded hole is used to support the steel back rib 32, and then the butterfly buckle 34 is tightened, and the horizontal joint is completed.

[0044] In this embodiment, Figure 5As shown, the construction process of the connector when used in the vertical joint is as follows: after the prefabricated components are hoisted, one side of the vertical joint is sealed with an aluminum film 31, and threaded holes with a certain spacing are reserved on the aluminum film 31, and then the connecting rod 10 is aligned with the threaded holes on the aluminum film 31, and the threaded screw 20 is connected to the connecting rod 10, and after tightening, the steel back rib 32 is passed through the screw 20, and the steel back rib 32 is supported by a steel plate, and then tightened with a butterfly buckle 34. After all the connectors on this side are installed, the joints are sealed with aluminum film 31 on the other side, and then the screw 20 is aligned with the threaded holes on the connecting rod 10, and after tightening, the steel back rib 32 is passed through the screw 20, and the steel back rib 32 is supported by a steel plate, and then tightened with a butterfly buckle 34, and the vertical joint is completed.

[0045] In summary, the technical solution of this application has the following beneficial effects:

[0046] 1. In the prior art, when supporting the vertical and horizontal joints of the double-sided composite wall, the connecting parts are mostly tension screws, but the construction efficiency brought about by the tension screw connecting parts is low, there is a risk of leakage when the screws are blocked, and there are too many screw holes on the prefabricated wall, which affects the vibration during pouring. The connecting rod of the present application is embedded in the wall, and no holes are required for the overall pouring, and it is reserved in the cast-in-place wall. Other supporting components do not need to be reserved, and the remaining parts can be reused.

[0047] 2. The present application has a simple structure and is easy to construct. It can effectively solve the problem of late-stage plugging of screw holes in the joints of double-sided composite walls, and improve the waterproof performance and construction efficiency of double-sided composite walls.

[0048] 3. After adopting the connector of the utility model, after the concrete pouring is completed, the connecting rod is buried in the joint and does not need to be taken out, and the other parts can be removed and reused, saving manufacturing costs.

[0049] The above are merely exemplary embodiments of the present application and are not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.

Claims

1. A connector for the joints of double-sided composite walls, characterized in that: include: A connecting rod, with connecting ends at both ends, and a threaded hole is opened in the center of the connecting end; A screw rod, one end of which is a square end head, the outer surface of the screw rod body is provided with an external thread, and the end of the screw rod away from the square end head is matched and connected with the threaded hole; The fixing assembly comprises an aluminum film, a steel back rib, a steel plate and a butterfly buckle which are sequentially sleeved on the screw rod, one side of the steel back rib presses the aluminum film and the connecting end head, and the other side of the steel back rib is in close contact with the steel plate, and the inner thread of the butterfly buckle matches the screw rod and is tightened, thereby pressing the steel plate, the steel back rib, the aluminum film and the connecting end head; the steel plate and the aluminum film are provided with threaded holes for the screw rod to pass through; Wherein, the diagonal length of the square end is smaller than the diameter of the screw; Wherein, when the connector is in use, the connecting rod is located in the wall, and both ends of the connecting rod are fixedly connected to the wall through screws and fixing components respectively.

2. A connector for use at joints of double-sided composite walls according to claim 1, characterized in that: The connecting end is a square steel block, and the width and height of the square steel block are not less than 40 mm.

3. A connector for use in joints of double-sided composite walls according to claim 2, characterized in that: The square steel block is connected to the connecting rod by welding.

4. A connector for use in joints of double-sided composite walls according to claim 2, characterized in that: The depth of the threaded hole in the square steel block is the width of the square steel block minus 10 mm, and the depth of the threaded hole is not less than 30 mm.

5. A connector for joints of double-sided composite walls according to claim 1, characterized in that: The connecting rod is a long round steel, and the diameter of the long round steel is not less than 14 mm.

6. A connector for joints of double-sided composite walls according to claim 1, characterized in that: The connecting rod and the screw rod are both long round steels made of steel not lower than Q355 round steel grade.

7. A connector for joints of double-sided composite walls according to claim 1, characterized in that: The screw rod body is threaded into a threaded shape.

8. A connector for joints of double-sided composite walls according to claim 1, characterized in that: When connecting the horizontal seams of double-sided overlapping walls, the connector is placed horizontally at the bottom seam.

9. A connector for joints of double-sided composite walls according to claim 1, characterized in that: When connecting the vertical seams of the double-sided composite wall, the connectors on both sides of the vertical seams are arranged vertically.

10. A connector for joints of double-sided composite walls according to claim 1, characterized in that: The aluminum film is an L-shaped aluminum film, and the length of the foot of the L-shaped aluminum film is the same as the width of the steel back rib.

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