Self-drilling built-in anchoring part

Abstract

The utility model discloses a self-drilling type built-in anchoring part, which relates to the technical field of connecting pieces, and comprises an inner anchoring sleeve, an outer anchoring sleeve, a first clamping groove, a second clamping groove, a second anchoring sleeve, a third clamping groove, a fourth clamping groove, a fourth clamping groove and a fifth clamping groove, and the outer wall of the middle area of the inner anchoring sleeve is provided with a threaded hole for connecting a bolt; the chip removal drill bit penetrates through the end, provided with the cutting structure, of the inner anchoring sleeve from the end, provided with the first clamping groove, of the inner anchoring sleeve, so that the tip end of the chip removal drill bit extends out of the inner anchoring sleeve, a clamping block at the root of the chip removal drill bit is clamped in the first clamping groove, and the chip removal drill bit is driven by the chip removal drill bit. The cutting structure at the end of the inner anchoring sleeve is used for directly drilling a hole in the to-be-installed plate, and the inner anchoring sleeve is placed in the to-be-installed plate. Compared with a common inner anchoring sleeve, a mounting hole does not need to be prefabricated through a drill bit in advance, the mounting procedure of a conventional method is omitted, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pieces, and more specifically to a self-drilling built-in anchor piece. Background Art

[0002] At present, when autoclaved aerated concrete panels or other mounting panels are installed on the wall outside, the existing autoclaved aerated concrete panels or other mounting panels are installed on the wall by means of inner anchor sleeves and bolts. It is necessary to use a drill to prefabricate mounting holes on the autoclaved aerated concrete panels or other mounting panels in advance, then take out the drill to install the inner anchor sleeves in the prefabricated mounting holes, and finally use bolts to fix the inner anchor sleeves to the mounting frame on the wall. It can be seen that in the prior art, it is necessary to use a drill to prefabricate mounting holes first, and then install the inner anchor sleeves and bolts. The installation process is relatively cumbersome, which affects the installation efficiency of the autoclaved aerated concrete panels or other mounting panels.

[0003] Therefore, how to provide a self-drilling built-in anchor that can improve the installation efficiency of autoclaved aerated concrete panels is a problem that those skilled in the art urgently need to solve. Utility Model Content

[0004] In view of this, the utility model provides a self-drilling built-in anchor, which aims to solve the problems in the above-mentioned background technology and improve the installation efficiency of placing the anchor into the plate to be installed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a self-drilling built-in anchor, comprising: an inner anchor sleeve, one end of which is provided with a cutting structure, the other end of which is provided with a first clamping groove, and the outer wall of the middle area of ​​the inner anchor sleeve is provided with a threaded hole for connecting a bolt;

[0007] Among them, the chip removal drill is passed from one end of the inner anchoring sleeve provided with a first slot to the other end provided with a cutting structure, so that the tip of the chip removal drill protrudes out of the inner anchoring sleeve, and the block at the root of the chip removal drill is stuck in the first slot. Under the drive of the chip removal drill, the cutting structure at the end of the inner anchoring sleeve is used to directly drill a hole on the plate to be installed, and the inner anchoring sleeve is placed in the plate to be installed.

[0008] The self-drilling built-in anchor provided by the utility model also includes a connecting piece, wherein the connecting piece includes a first plane plate and a second plane plate connected to each other and arranged in a staggered manner, and a through hole is arranged on the first plane plate;

[0009] The threaded portion of the bolt passes through the through hole and is connected to the threaded hole, so that the first flat plate is installed on the surface of the plate to be installed, and a second slot is formed between the second flat plate and the plate to be installed.

[0010] According to the self-drilling built-in anchor provided by the utility model, the through hole is a strip-shaped hole.

[0011] According to the self-drilling built-in anchor provided by the utility model, the strip-shaped holes are transverse strip-shaped holes or longitudinal strip-shaped holes.

[0012] According to the self-drilling built-in anchor provided by the utility model, the tip of the chip removal drill bit is a cross-pointed cone, and the chip removal drill bit has a through cavity in the axial direction, and the through cavity extends from the gap between the cross-pointed cones to the root of the chip removal drill bit and communicates with the outside world;

[0013] Wherein, when the chip removal drill drives the inner anchor sleeve to drill into the plate to be installed, the through cavity is used for chip removal.

[0014] According to the self-drilling built-in anchor provided by the utility model, the cutting structure is a cutting edge formed by a plurality of cutting grooves arranged at intervals from each other at the end of the inner anchor sleeve.

[0015] According to the self-drilling built-in anchor provided by the utility model, a spring washer is arranged between the bolt and the first plane plate.

[0016] It can be seen from the above technical solution that compared with the prior art, the utility model discloses a self-drilling built-in anchor, by directly providing a cutting structure at one end of the inner anchor sleeve, and providing a first clamping groove for clamping with a chip removal drill bit at the other end. Under the drive of the chip removal drill bit, the inner anchor sleeve can be directly placed in the plate to be installed. Compared with the commonly used inner anchor sleeve, the utility model does not need to pre-fabricate the installation hole with a drill bit in advance, thus saving the conventional installation process and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the inner anchor sleeve provided by the utility model;

[0019] Figure 2 A schematic diagram of the structure of the self-drilling built-in anchor provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of the self-drilling built-in anchor provided by the utility model from another perspective;

[0021] Figure 4 A schematic diagram of the structure of a chip removal drill provided by the utility model that is inserted into an inner anchor sleeve;

[0022] Figure 5 A schematic diagram of the structure of a chip removal drill provided by the utility model;

[0023] Figure 6 A schematic diagram of the structure of the self-drilling built-in anchor provided by the utility model being arranged on a plate to be installed;

[0024] Figure 7 A cross-sectional view of the self-drilling built-in anchor provided by the utility model being arranged on a plate to be installed;

[0025] Figure 8 The utility model provides Figure 7 A partial enlarged view of C in the middle.

[0026] Among them: 1 is an inner anchor sleeve; 2 is a cutting structure; 3 is a first slot; 4 is a threaded hole; 5 is a bolt; 6 is a chip removal drill; 7 is a block; 8 is a connecting piece; 81 is a first plane plate; 82 is a second plane plate; 9 is a second slot; 10 is a through hole; 11 is a through cavity; 12 is a spring washer; 13 is a plate to be installed. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-8 The utility model discloses a self-drilling built-in anchor, comprising: an inner anchor sleeve 1, one end of which is provided with a cutting structure 2, the other end of which is provided with a first slot 3, and the outer wall of the middle area of ​​the inner anchor sleeve 1 is provided with a threaded hole 4 for connecting a bolt 5.

[0029] Among them, the chip removal drill bit 6 is passed through the end of the inner anchoring sleeve 1 where the first slot 3 is provided to the end where the cutting structure 2 is provided, so that the tip of the chip removal drill bit 6 extends out of the inner anchoring sleeve 1, and the clamping block 7 at the root of the chip removal drill bit 6 is stuck in the first slot 3. Under the drive of the chip removal drill bit 6, the cutting structure 2 at the end of the inner anchoring sleeve 1 is used to directly drill a hole on the plate to be installed 13, and the inner anchoring sleeve 1 is placed in the plate to be installed 13.

[0030] It should be noted that the first slot 3 is a cross-shaped slot opened at the end of the inner anchoring sleeve 1. Similarly, a cross-shaped block 7 is also provided at the root of the chip removal drill bit 6. Through the cooperation of the cross-shaped block 7 and the cross-shaped slot, the chip removal drill bit 6 can provide a rotational torque for the inner anchoring sleeve 1. The cutting structure 2 at the front end of the inner anchoring sleeve 1 discharges the chips of the plate to be installed 13 through the chip removal drill bit 6, and the inner anchoring sleeve 1 is directly placed into the interior of the plate to be installed 13 during the drilling process. The outer diameter of the chip removal drill bit 6 is slightly smaller than the inner diameter of the inner anchoring sleeve 1. With this arrangement, compared with the commonly used inner anchoring sleeve, the self-drilling built-in anchor of the utility model does not need to pre-fabricate the installation hole through the drill bit in advance, which saves the conventional installation process and improves the processing efficiency. In this embodiment, the plate 13 to be installed is preferably an autoclaved aerated concrete plate. By embedding an internal anchor sleeve 1 in the autoclaved aerated concrete plate, it is convenient to connect with other connecting parts through the internal anchor sleeve 1, so as to realize the installation of the autoclaved aerated concrete plate on the main structure through the internal anchor sleeve 1 and the bolt 5. In other embodiments, the plate 13 to be installed may also be a lightweight aggregate concrete plate, a foam concrete plate, a ceramsite lightweight concrete plate or a polystyrene particle lightweight concrete plate.

[0031] In a further embodiment, the self-drilling built-in anchor further comprises a connecting member 8 , the connecting member 8 comprises a first plane plate 81 and a second plane plate 82 which are connected to each other and arranged at different heights, and a through hole 10 is arranged on the first plane plate 81 .

[0032] The threaded portion of the bolt 5 passes through the through hole 10 and is connected to the threaded hole 4, so that the first plane plate 81 is installed on the surface of the plate to be installed 13, and a second clamping groove 9 is formed between the second plane plate 82 and the plate to be installed 13. The second clamping groove 9 is formed to directly clamp the plate to be installed 13 on the full-length angle steel on the wall of the building, so as to realize the installation of the autoclaved aerated concrete plate on the main structure. In this embodiment, preferably, the upper and lower ends of the autoclaved aerated concrete plate are provided with an inner anchor sleeve 1 and a connector 8, so as to realize the fixing of the autoclaved aerated concrete plate by clamping at both ends.

[0033] In a further embodiment, the through hole 10 is a strip hole. By setting the through hole 10 as a strip hole, when the autoclaved aerated concrete board is installed on the full-length angle steel, if there is an installation error between the connecting member 8 and the full-length angle steel, the installation position of the connecting member 8 can be fine-tuned by using the strip hole to ensure smooth installation of the autoclaved aerated concrete board, thereby solving the defect in the prior art that the installation position cannot be fine-tuned when the bolt 5 is directly installed on the full-length angle steel and connected to the inner anchor sleeve 1 in the autoclaved aerated concrete board by using the bolt 5.

[0034] In a further embodiment, the strip holes are transverse strip holes or longitudinal strip holes. In this embodiment, preferably, on the connectors 8 connected at both ends of the autoclaved aerated concrete board, the first plane plate 81 on the connector 8 at one end is provided with transverse strip holes, and the first plane plate 81 on the connector 8 at the other end is provided with longitudinal strip holes, and the transverse strip holes and the longitudinal strip holes cooperate with each other to achieve fine adjustment of the transverse and longitudinal directions of the connector 8 on the autoclaved aerated concrete board, especially when the full-length angle steel forms a frame structure, the transverse strip holes and the longitudinal strip holes are provided to achieve the installation of the autoclaved aerated concrete board, thereby ensuring the smooth installation of the autoclaved aerated concrete board.

[0035] In a further embodiment, the tip of the chip removal drill 6 is a cross-pointed cone, and the chip removal drill 6 has a through cavity 11 in the axial direction. The through cavity 11 extends from the gap between the cross-pointed cones to the root of the chip removal drill 6 and communicates with the outside world;

[0036] Among them, when the chip removal drill 6 drives the inner anchor sleeve 1 to drill into the plate to be installed 13, the through cavity 11 is used for chip removal. Preferably, diamond sand is attached to the tip surface of the cross-pointed cone of the chip removal drill 6 to improve the strength of the chip removal drill 6. The setting of the through cavity 11 can ensure that the chips of the plate to be installed 13 cut by the chip removal drill 6 are discharged in time through the through cavity 11 in the middle of the chip removal drill 6, leaving space for the cutting structure 2 at the end of the inner anchor sleeve 1 to cut, so that the inner anchor sleeve 1 as a whole can be smoothly drilled into the plate to be installed 13 to form a built-in anchoring effect.

[0037] In a further embodiment, the cutting structure 2 is a cutting edge formed by a plurality of cutting grooves spaced apart from each other at the end of the inner anchor sleeve 1. In this embodiment, there are four cutting grooves, and the cutting grooves are arranged obliquely, and the four cutting grooves are arranged in a circular array with the axis of the inner anchor sleeve 1.

[0038] In a further embodiment, a spring washer 12 is provided between the bolt 5 and the first flat plate 81. The provision of the spring washer 12 can prevent the subsequent bolt 5 from becoming loose.

[0039] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-drilling internal anchor, characterized in that: include: An inner anchor sleeve, one end of which is provided with a cutting structure, and the other end of which is provided with a first clamping groove, and an outer wall of a middle area of ​​the inner anchor sleeve is provided with a threaded hole for connecting a bolt; Among them, the chip removal drill is passed from one end of the inner anchoring sleeve provided with a first slot to the other end provided with a cutting structure, so that the tip of the chip removal drill protrudes out of the inner anchoring sleeve, and the block at the root of the chip removal drill is stuck in the first slot. Under the drive of the chip removal drill, the cutting structure at the end of the inner anchoring sleeve is used to directly drill a hole on the plate to be installed, and the inner anchoring sleeve is placed in the plate to be installed.

2. The self-drilling internal anchor according to claim 1, characterized in that: It also includes a connecting member, the connecting member includes a first plane plate and a second plane plate that are connected to each other and arranged in a staggered manner, and the first plane plate is provided with a through hole; The threaded portion of the bolt passes through the through hole and is connected to the threaded hole, so that the first flat plate is installed on the surface of the plate to be installed, and a second slot is formed between the second flat plate and the plate to be installed.

3. The self-drilling internal anchor according to claim 2, characterized in that: The through hole is a strip-shaped hole.

4. The self-drilling internal anchor according to claim 3, characterized in that: The strip-shaped holes are transverse strip-shaped holes or longitudinal strip-shaped holes.

5. The self-drilling internal anchor according to claim 1, characterized in that: The tip of the chip removal drill is a cross-pointed cone, and the chip removal drill has a through cavity in the axial direction, and the through cavity extends from the gap between the cross-pointed cones to the root of the chip removal drill and is connected with the outside; Wherein, when the chip removal drill drives the inner anchor sleeve to drill into the plate to be installed, the through cavity is used for chip removal.

6. The self-drilling internal anchor according to claim 1, characterized in that: The cutting structure is a cutting edge formed by a plurality of cutting grooves spaced apart from each other at the end of the inner anchoring sleeve.

7. The self-drilling internal anchor according to claim 2, characterized in that: A spring washer is arranged between the bolt and the first plane plate.

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