Novel outer wall plastic anchor bolt

Abstract

The utility model discloses a novel outer wall plastic anchor bolt, which relates to the technical field of building materials and comprises a plastic expansion pipe, the plastic expansion pipe is of a hollow structure, a threaded hole is arranged at the tail end of the plastic expansion pipe, a screw rod is connected in the threaded hole, one end of the screw rod is connected with a countersunk head, and the other end of the screw rod is connected with a centering drill. The rear end of the centering drill is connected with six groups of barbs at equal intervals, the tail end of the plastic expansion pipe is provided with six groups of limiting arc blocks at equal intervals, and one sides of the six groups of barbs are in close contact with one sides of the six groups of limiting arc blocks. The anchoring problem caused by the inaccurate drilling depth is solved, the anchoring stability is enhanced, it is guaranteed that an outer wall is firmly installed, and the safety risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material technical field, concretely to a novel outer wall plastic anchor bolt. BACKGROUND

[0002] The thermal insulation layer of wall energy saving engineering usually adopts postposition plastic anchor bolt fixed, and the plastic anchor bolt is composed of plastic expansion sleeve pipe and plastic nail or metal screw with anticorrosion performance, at present, the connecting anchor bolt usually adopts plastic material, the main body is plastic pole, the plastic pole head is equipped with anchor bolt head, the tail part is equipped with anchor bolt cover, the plastic pole outer surface sets up anchor bolt piece, is tightly connected through anchor bolt piece and each component of composite self-insulation block, reaches the purpose of firm bolt connection,

[0003] The applicant finds that a novel outer wall plastic anchor bolt is disclosed in Chinese patent with publication number CN208935116U, which mainly guarantees the anchoring force by the friction and adhesion of the anchor bolt and the base wall, and the strength of the anchor bolt is well guaranteed, and the novel outer wall plastic anchor bolt is convenient to implement and operate on site, and reduces anchor bolt scrap caused by improper operation.

[0004] However, the following defects still exist: in the drilling installation process, due to the difference between construction conditions and worker operation level, it is difficult to ensure that the drilling depth is accurate every time. When the drilling depth is not accurate, the traditional anchor bolt cannot be fully expanded, and the combination with the wall is not tight enough, resulting in poor anchoring stability.

[0005] Therefore, the utility model provides a novel outer wall plastic anchor bolt. Utility model content

[0006] The utility model discloses a novel outer wall plastic anchor bolt.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a novel outer wall plastic anchor bolt, including plastic expansion pipe, the plastic expansion pipe is hollow structure, the plastic expansion pipe tail end is equipped with screw hole, the screw hole is connected with screw rod, one end of screw rod is connected with sink head, the other end of screw rod is connected with centering drill, the rear end of centering drill is connected with six groups of barbed claws at equal intervals, the tail end of plastic expansion pipe is provided with six groups of limit arc blocks at equal intervals, one side of six groups of barbed claws is in close contact with one side of six groups of limit arc blocks.

[0008] As a further scheme of the utility model: the sink head surface is equipped with plum blossom groove, the screw rod is movably sleeved with moving ring, the side surface of moving ring is connected with six groups of limit springs at equal intervals, and the other end of six groups of limit springs is connected with one side of six groups of barbed claws respectively.

[0009] As a further scheme of the utility model: the other end of the plastic expansion pipe is provided with a disc, the disc side is provided with a movable groove, six groups of rotating shaft seats are arranged in the movable groove, an extension plate is installed on the rotating shaft seat, and a connecting hole is formed in the extension plate.

[0010] As a further scheme of the utility model: four groups of installation grooves are equidistantly formed on the plastic expansion pipe side, four groups of supporting blocks are installed in the installation grooves, and positioning blocks are arranged on the surfaces of the four groups of supporting blocks.

[0011] As a further scheme of the utility model: extrusion supporting blocks are arranged on the inner wall of the plastic expansion pipe, and expansion joints are arranged on the side of the plastic expansion pipe and are parallel to the extrusion supporting blocks.

[0012] As a further scheme of the utility model: a sharp protrusion is arranged on the side of the plastic expansion pipe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The plastic expansion pipe end is provided with a threaded hole connected with a screw rod, the screw rod is rotated to drive the centering drill, the barb claw is separated from the limiting arc block and deeply penetrates into the wall body, the anchoring problem caused by the inaccurate drilling depth is solved, the anchoring stability is enhanced, the outer wall installation is firm, and the safety risk is reduced.

[0015] 2. The extension plate with the rotating shaft seat is installed in the movable groove on the disc side, and the connecting hole is formed in the extension plate, so that the anchor bolt can be flexibly rotated according to the installation requirements of different outer wall plates or components in actual use, is connected with various objects through the connecting hole, the versatility of the anchor bolt is greatly improved, and the single connection mode of the traditional anchor bolt is solved.

[0016] Other advantages, objects and features of the utility model will be described in the subsequent description to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional schematic view of the device in the utility model embodiment;

[0018] Figure 2 It is a front view schematic view of the device in the utility model embodiment;

[0019] Figure 3 It is a whole cross-sectional schematic view of the device in the utility model embodiment;

[0020] Figure 4 It isFigure 1 Enlarged view of the middle A.

[0021] In the figure: 1, plastic expansion pipe; 2, threaded hole; 3, screw rod; 4, countersunk; 5, centering drill; 6, barb claw; 7, limit arc block; 8, moving ring; 9, limit spring; 10, disc; 11, movable groove; 12, rotating shaft seat; 13, stretching plate; 14, connecting hole; 15, mounting groove; 16, supporting block; 17, positioning block; 18, extrusion supporting block; 19, expansion joint; 20, pointed protrusion. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described below with reference to the drawings, and it should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0023] In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as there is no conflict between them.

[0024] Please refer to the drawings Figure 1 - the drawings Figure 4 The utility model discloses a novel outer wall plastic anchor bolt, including plastic expansion pipe 1, plastic expansion pipe 1 is hollow structure, plastic expansion pipe 1 end is provided with threaded hole 2, threaded hole 2 is connected with screw rod 3, screw rod 3 one end is connected with countersunk 4, screw rod 3 other end is connected with centering drill 5, and centering drill 5 plays an important role in positioning and guiding during the whole installation process. When the expansion pipe needs to be fixed at a specific position, the centering drill 5 can drill into the target material first to determine the accurate position and provide a stable starting point for the subsequent installation steps. The rear end of the centering drill 5 is connected with six groups of barb claws 6 at equal intervals. The end of the plastic expansion pipe 1 is provided with six groups of limit arc blocks 7 at equal intervals. One side of the six groups of barb claws 6 is in close contact with one side of the six groups of limit arc blocks 7. When the screw rod 3 rotates, the barb claws 6 will displace and deform under the limitation of the limit arc blocks 7. The surface of the countersunk 4 is provided with a wobbly groove. The screw rod 3 is movably sleeved with a moving ring 8, which can freely slide on the screw rod 3. The moving ring 8 is connected with six groups of limit springs 9 at equal intervals on the side surface. The other end of the six groups of limit springs 9 is connected with one side of the six groups of barb claws 6 respectively. While ensuring that the barb claws 6 can be smoothly opened and retracted, the limit springs 9 provide sufficient buffer force to ensure the stability of the entire installation process.

[0025] In the first embodiment, the other end of the plastic expansion pipe 1 is provided with a disc 10. The side surface of the disc 10 is provided with a movable groove 11. Six groups of rotating shaft seats 12 are arranged in the movable groove 11. A stretching plate 13 is installed on the rotating shaft seat 12. The stretching plate 13 is provided with connecting holes 14.

[0026] Specifically, the extension plate 13 installed on the shaft seat is designed in a foldable fan-shaped structure, which can be folded and stored when not in use, saving space; when needed, it can be easily unfolded and freely rotated around the shaft seat 12. The surface of the extension plate 13 is treated with anti-skid treatment, which is convenient for the operator to operate. The connecting hole 14 opened on the extension plate is a standard through hole, which can be adapted to various specifications of bolts, screws and other connecting parts according to different connection requirements.

[0027] In the second embodiment, four groups of installation grooves 15 are equally spaced on the side of the plastic expansion pipe 1, and four groups of supporting blocks 16 are installed in the four groups of installation grooves 15. The surfaces of the four groups of supporting blocks 16 are provided with positioning blocks 17. The inner wall of the plastic expansion pipe 1 is provided with an extrusion supporting block 18. The side of the plastic expansion pipe 1 is provided with an expansion joint 19, which is parallel to the extrusion supporting block 18. The side of the plastic expansion pipe 1 is provided with a sharp protrusion 20.

[0028] Specifically, four groups of installation grooves 15 are equally spaced on the side of the plastic expansion pipe 1. The depth and width of the grooves are adapted to the supporting blocks 16. The surface of the supporting block 16 has anti-skid texture, which further enhances the friction. The surface of the supporting block 16 is provided with a positioning block 17, which is integrally injection molded with the supporting block 16 at the bottom, firmly connected, and the top end is semispherical, which is convenient for embedding into the positioning hole, reducing the installation resistance. The inner wall of the plastic expansion pipe 1 is provided with an extrusion supporting block 18, which is long and longitudinally distributed along the inner wall. When pressed, it can deform and provide supporting force, enhancing the compression strength. The expansion joint 19 on the side is parallel to the extrusion supporting block 18. When the threaded shaft is rotated or subjected to external force, the expansion pipe can moderately expand along the joint, tightly fit the fixed material, and enhance the anchoring effect. The side is also distributed with a sharp protrusion 20, which is conical and sharp at the tip. When installed, it can penetrate into the material, assist in positioning and increase the friction, improve the installation convenience and stability.

[0029] Working principle:

[0030] The plastic expansion pipe 1 has a threaded hole 2 at the end. The screw rod 3 is connected to the threaded hole 2. When the anchor bolt needs to be installed, the tool is used on the countersunk head 4 at one end of the screw rod 3. The torx slot on the surface of the countersunk head 4 can make the tool better force, which is convenient for rotating the screw rod 3. With the rotation of the screw rod 3, the centering drill 5 connected thereto rotates together. The six groups of barbs 6 equally connected at the rear end of the centering drill 5 begin to play a key role. In the initial state, the barbs 6 are in close contact with the six groups of limiting arc blocks 7 equally arranged at the end of the plastic expansion pipe 1. When the screw rod 3 continues to rotate, the barbs 6 are released from the limiting arc blocks 7. With the deepening of the screw rod 3, the barbs 6 penetrate into the wall body and grab the deep wall body. Even if there is an error in the drilling depth, it can also ensure that the anchor bolt is tightly combined with the wall body, enhancing the anchoring stability.

[0031] In the installation of the outer wall plate or other components, according to the actual installation scene and demand, the construction personnel can directly manually operate the stretching plate 13, the stretching plate 13 is flexibly rotated with the pivot seat 12 as the shaft, is quickly adjusted to the angle most suitable for the butt joint with the object to be connected, when the stretching plate 13 is adjusted to the appropriate angle, the construction personnel can select the connecting piece such as bolt, screw, passes through the connecting hole 14 on the stretching plate 13, and is fastened and connected with the corresponding screw hole or connecting part prearranged on the outer wall plate or component, and the connecting mode is simple and efficient, and the anchorage bolt and various objects can be stably connected.

[0032] The above-mentioned front, rear, left, right, top and bottom are based on the Figure 1 of the drawings.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the protection scope of the present application.

[0034] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the described embodiments.

[0035] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A new type of plastic anchor for exterior walls, comprising a plastic expansion tube (1) which is of a hollow structure, characterized in that: The end of the plastic expansion pipe (1) is provided with a threaded hole (2), the threaded hole (2) is connected with a screw rod (3), one end of the screw rod (3) is connected with a countersunk head (4), the other end of the screw rod (3) is connected with a centering drill (5), the rear end of the centering drill (5) is connected with six groups of reverse hook claws (6) at equal intervals, the end of the plastic expansion pipe (1) is provided with six groups of limiting arc blocks (7) at equal intervals, one side of the six groups of reverse hook claws (6) is in close contact with one side of the six groups of limiting arc blocks (7).

2. A new type of plastic anchor bolt for outer wall according to claim 1, characterized in that: The surface of the countersunk head (4) is provided with a plum blossom groove, the screw rod (3) is movably sleeved with a moving ring (8), the side surface of the moving ring (8) is connected with six groups of limiting springs (9) at equal intervals, the other ends of the six groups of limiting springs (9) are connected with one side of the six groups of reverse hook claws (6) respectively.

3. A new type of plastic anchor bolt for outer wall according to claim 1, characterized in that: The other end of the plastic expansion pipe (1) is provided with a disc (10), the side surface of the disc (10) is provided with a movable groove (11), the movable groove (11) is provided with six groups of rotating shaft seats (12), the rotating shaft seats (12) are installed with extension plates (13), the extension plates (13) are provided with connecting holes (14).

4. A new type of plastic anchor bolt for outer wall according to claim 1, characterized in that: The side surface of the plastic expansion pipe (1) is provided with four groups of installation grooves (15) at equal intervals, the four groups of installation grooves (15) are all installed with supporting blocks (16), the surfaces of the four groups of supporting blocks (16) are all provided with positioning blocks (17).

5. A new type of plastic anchor bolt for outer wall according to claim 1, characterized in that: The inner wall of the plastic expansion pipe (1) is provided with an extrusion supporting block (18), the side surface of the plastic expansion pipe (1) is provided with an expansion joint (19), the expansion joint (19) is parallel to the extrusion supporting block (18).

6. A new type of plastic anchor bolt for exterior wall according to claim 1, characterized in that: The side surface of the plastic expansion pipe (1) is provided with a sharp protrusion (20).

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