Combined outer wall plastic anchor bolt

Abstract

The utility model discloses a combined type outer wall plastic anchor bolt, which relates to the technical field of plastic anchor bolts, and comprises an anchor rod main body, a threaded rod is arranged at the bottom of the anchor rod main body, an expansion sleeve assembly is arranged outside the threaded rod, the expansion sleeve assembly comprises a plastic expansion sleeve, a through hole and a threaded groove are arranged in the middle of the plastic expansion sleeve, and the through hole is communicated with the threaded groove. A through groove is formed in the middle of the side wall of the plastic expansion sleeve, an arc-shaped wear-resisting block is arranged outside the plastic expansion sleeve, a reinforcing layer is arranged in the arc-shaped wear-resisting block, and the reinforcing layer comprises a top wear-resisting ring and a wear-resisting shell; a first resin layer, a reinforcing steel wire, a supporting steel wire net and a second resin layer are arranged between the top wear-resisting ring and the wear-resisting shell. The wear-resistant shell and the top wear-resistant ring are respectively distributed outside and inside the arc-shaped wear-resistant blocks, and meanwhile, the arc-shaped wear-resistant blocks are uniformly distributed outside the plastic expansion sleeve, so that the wear-resistant effect of the plastic expansion sleeve is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic anchor technology, and in particular to a combined external wall plastic anchor. Background Technology

[0002] In wall energy-saving projects, the insulation layer is typically fixed using post-installed plastic anchors. These anchors consist of a plastic expansion sleeve on the tail plate and plastic nails or corrosion-resistant metal screws. Currently, the connecting anchors are usually made of plastic, with a plastic rod as the main body. The head of the plastic rod has an anchor head, and the tail has an anchor cap. Anchor plates are installed on the outer surface of the plastic rod. These anchor plates are used to tightly connect with the various components of the composite self-insulating block, achieving a secure bolted connection.

[0003] Existing plastic anchors are prone to damage to the anchor sleeve due to excessive friction during use, which affects the stability of the anchor. Therefore, a combined external wall plastic anchor is needed to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a modular plastic anchor for exterior walls, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A combined external wall plastic anchor bolt includes an anchor bolt body, a threaded rod at the bottom of the anchor bolt body, and an expansion sleeve assembly on the outside of the threaded rod;

[0007] The expansion sleeve assembly includes a plastic expansion sleeve, which has a through hole and a threaded groove in the middle, and a through groove in the middle of the side wall of the plastic expansion sleeve. The plastic expansion sleeve has an arc-shaped wear-resistant block on the outside and a reinforcing layer inside the arc-shaped wear-resistant block.

[0008] The reinforcing layer includes a top wear-resistant ring and a wear-resistant outer shell, and a first resin layer, reinforcing steel wire, supporting steel wire mesh and a second resin layer are disposed between the top wear-resistant ring and the wear-resistant outer shell.

[0009] Preferably, the plastic expansion sleeve has a through hole in the middle, and the through hole extends through the bottom end of the plastic expansion sleeve. The inner wall of the through hole has a threaded groove, and the threaded rod is connected to the plastic expansion sleeve through the threaded groove.

[0010] Preferably, the sidewall of the plastic expansion sleeve has a through groove in the middle, and there are multiple through grooves, which are evenly distributed in the middle of the sidewall of the plastic expansion sleeve. The through grooves are connected to the through holes. An arc-shaped wear-resistant block is fixedly connected to the outer wall of the plastic expansion sleeve, and there are multiple arc-shaped wear-resistant blocks, which are evenly distributed in the outer wall of the plastic expansion sleeve.

[0011] Preferably, the top wear-resistant ring is fixedly connected to the outer wall of the arc-shaped wear-resistant block, and a wear-resistant outer shell is fixedly connected to the inner wall of the arc-shaped wear-resistant block. The top wear-resistant ring and the wear-resistant outer shell are symmetrically distributed on both sides of the arc-shaped wear-resistant block.

[0012] Preferably, the top wear-resistant ring has a first resin layer poured inside, and a reinforcing steel wire is provided on the side of the first resin layer away from the top wear-resistant ring. A supporting steel wire mesh is provided on the side of the reinforcing steel wire away from the first resin layer, and the supporting steel wire mesh is fixedly connected to the reinforcing steel wire.

[0013] Preferably, a second resin layer is provided on the side of the supporting wire mesh away from the reinforcing wire, and the second resin layer and the first resin layer wrap around the outside of the reinforcing wire and the supporting wire mesh.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the wear-resistant outer shell and the top wear-resistant ring are respectively distributed on the outside and inside of the arc-shaped wear-resistant block, while the arc-shaped wear-resistant blocks are evenly distributed on the outside of the plastic expansion sleeve. This improves the wear resistance of the plastic expansion sleeve and prevents damage caused by excessive force during use. Furthermore, the arc-shaped wear-resistant blocks contact the anchor hole, increasing the friction between the anchor sleeve and the anchor hole, further improving the stability of the anchor bolt body insertion. The reinforcing steel wire and supporting steel wire mesh enhance the toughness of the anchor sleeve and extend its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the expansion sleeve assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the plastic expansion sleeve of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the arc-shaped wear-resistant block of this utility model.

[0020] In the diagram: 1. Anchor bolt body; 2. Threaded bolt; 3. Expansion sleeve assembly; 4. Plastic expansion sleeve; 5. Through hole; 6. Through groove; 7. Arc-shaped wear-resistant block; 8. Reinforcing layer; 9. First resin layer; 10. Reinforcing steel wire; 11. Supporting wire mesh; 12. Second resin layer; 13. Threaded groove; 14. Top wear-resistant ring; 15. Wear-resistant outer shell. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1 , Figure 2 , Figure 3 As shown, a combined external wall plastic anchor bolt includes an anchor bolt body 1, a threaded rod 2 is provided at the bottom of the anchor bolt body 1, and an expansion sleeve assembly 3 is provided on the outside of the threaded rod 2.

[0023] The expansion sleeve assembly 3 includes a plastic expansion sleeve 4. The plastic expansion sleeve 4 has a through hole 5 and a threaded groove 13 in its center, and a through groove 6 in the center of its sidewall. An arc-shaped wear-resistant block 7 is provided on the outside of the plastic expansion sleeve 4, and a reinforcing layer 8 is provided inside the arc-shaped wear-resistant block 7. The through hole 5 extends through the bottom end of the plastic expansion sleeve 4. A threaded groove 13 is provided on the inner wall of the through hole 5, and a threaded rod 2 is connected to the plastic expansion sleeve 4 through the threaded groove 13. The through groove 6 is provided in the center of the sidewall of the plastic expansion sleeve 4. There are multiple arc-shaped wear-resistant blocks 7, which are evenly distributed in the middle of the side wall of the plastic expansion sleeve 4. The through groove 6 and the through hole 5 are interconnected. An arc-shaped wear-resistant block 7 is fixedly connected to the outer wall of the plastic expansion sleeve 4. There are multiple arc-shaped wear-resistant blocks 7, which are evenly distributed on the outer wall of the plastic expansion sleeve 4. The wear-resistant outer shell 15 and the top wear-resistant ring 14 are respectively distributed on the outside and inside of the arc-shaped wear-resistant block 7. At the same time, the arc-shaped wear-resistant blocks 7 are evenly distributed on the outside of the plastic expansion sleeve 4, thereby improving the wear resistance of the plastic expansion sleeve 4 and preventing damage to the plastic expansion sleeve 4 caused by excessive force during use.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the reinforcing layer 8 includes a top wear-resistant ring 14 and a wear-resistant outer shell 15. A first resin layer 9, reinforcing steel wires 10, supporting wire mesh 11, and a second resin layer 12 are disposed between the top wear-resistant ring 14 and the wear-resistant outer shell 15. The top wear-resistant ring 14 is fixedly connected to the outer wall of the arc-shaped wear-resistant block 7, and the wear-resistant outer shell 15 is fixedly connected to the inner wall of the arc-shaped wear-resistant block 7. The top wear-resistant ring 14 and the wear-resistant outer shell 15 are symmetrically distributed on both sides of the arc-shaped wear-resistant block 7. The first resin layer 9 is cast inside the top wear-resistant ring 14, and a reinforcing steel wire 10 is disposed on the side of the first resin layer 9 away from the top wear-resistant ring 14. A supporting wire mesh 11 is provided on the side away from the first resin layer 9, and the supporting wire mesh 11 is fixedly connected to the reinforcing wire 10. A second resin layer 12 is provided on the side of the supporting wire mesh 11 away from the reinforcing wire 10, and the second resin layer 12 and the first resin layer 9 wrap around the reinforcing wire 10 and the supporting wire mesh 11. The arc-shaped wear-resistant block 7 is in contact with the anchor hole, which increases the friction between the anchor sleeve and the anchor hole, further improving the stability of the anchor bolt body insertion. The reinforcing wire 10 and the supporting wire mesh 11 strengthen the toughness of the anchor sleeve and extend the service life of the plastic expansion sleeve 4.

[0025] It should be noted that this utility model is a combined external wall plastic anchor. In use, the plastic expansion sleeve 4 is inserted into the required anchor hole. The anchor rod body 1 rotates along the threaded groove 13 inside the plastic expansion sleeve 4 through the threaded rod 2, thereby connecting the anchor rod body 1 to the wall. It is fixed to the outside of the plastic expansion sleeve 4 by the set arc-shaped wear-resistant block 7, which improves the strength of the plastic expansion sleeve 4. The top wear-resistant ring 14 and wear-resistant outer shell 15 are set to strengthen the strength of the arc-shaped wear-resistant block 7, preventing the plastic expansion sleeve 4 from being damaged due to excessive force during use, which would affect the use of the device. The arc-shaped wear-resistant block 7 is provided with a reinforcing steel wire 10 and a supporting steel wire mesh 11 in the middle. The reinforcing steel wire 10 and the supporting steel wire mesh 11 are cast together by the first resin layer 9 and the second resin layer 12 to improve the stability of use. The set reinforcing steel wire 10 and supporting steel wire mesh 11 further strengthen the strength of the arc-shaped wear-resistant block 7, which facilitates the repeated use of the plastic expansion sleeve 4 and extends the service life of the plastic expansion sleeve 4.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined external wall plastic anchor, comprising an anchor body (1), characterized in that: The bottom of the anchor body (1) is provided with a threaded rod (2), and an expansion sleeve assembly (3) is provided on the outside of the threaded rod (2); The expansion sleeve assembly (3) includes a plastic expansion sleeve (4), the plastic expansion sleeve (4) has a through hole (5) and a threaded groove (13) in the middle, and a through groove (6) is provided in the middle of the side wall of the plastic expansion sleeve (4). An arc-shaped wear-resistant block (7) is provided on the outside of the plastic expansion sleeve (4), and a reinforcing layer (8) is provided inside the arc-shaped wear-resistant block (7). The reinforcing layer (8) includes a top wear-resistant ring (14) and a wear-resistant outer shell (15), and a first resin layer (9), a reinforcing steel wire (10), a supporting steel wire mesh (11) and a second resin layer (12) are provided between the top wear-resistant ring (14) and the wear-resistant outer shell (15).

2. The combined external wall plastic anchor according to claim 1, characterized in that: The plastic expansion sleeve (4) has a through hole (5) in the middle, and the through hole (5) penetrates the bottom end of the plastic expansion sleeve (4). The inner wall of the through hole (5) has a threaded groove (13), and the threaded rod (2) is connected to the plastic expansion sleeve (4) through the threaded groove (13).

3. A combined external wall plastic anchor according to claim 2, characterized in that: The plastic expansion sleeve (4) has a through groove (6) in the middle of its side wall, and there are multiple through grooves (6) evenly distributed in the middle of the side wall of the plastic expansion sleeve (4). The through groove (6) is connected to the through hole (5). An arc-shaped wear-resistant block (7) is fixedly connected to the outer wall of the plastic expansion sleeve (4), and there are multiple arc-shaped wear-resistant blocks (7) evenly distributed in the outer wall of the plastic expansion sleeve (4).

4. A combined external wall plastic anchor according to claim 1, characterized in that: The top wear-resistant ring (14) is fixedly connected to the outer wall of the arc-shaped wear-resistant block (7), and a wear-resistant outer shell (15) is fixedly connected to the inner wall of the arc-shaped wear-resistant block (7). The top wear-resistant ring (14) and the wear-resistant outer shell (15) are symmetrically distributed on both sides of the arc-shaped wear-resistant block (7).

5. A combined external wall plastic anchor according to claim 4, characterized in that: The top wear-resistant ring (14) is filled with a first resin layer (9), and a reinforcing steel wire (10) is provided on the side of the first resin layer (9) away from the top wear-resistant ring (14). A supporting steel wire mesh (11) is provided on the side of the reinforcing steel wire (10) away from the first resin layer (9), and the supporting steel wire mesh (11) is fixedly connected to the reinforcing steel wire (10).

6. A combined external wall plastic anchor according to claim 5, characterized in that: The supporting wire mesh (11) is provided with a second resin layer (12) on the side away from the reinforcing wire (10), and the second resin layer (12) and the first resin layer (9) are wrapped around the outside of the reinforcing wire (10) and the supporting wire mesh (11).

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