阅读说明：本技术 一种旋入式背栓及其面板安装方法 (Screw-in back bolt and panel installation method thereof ) 是由 刘丽 于 2017-01-19 设计创作，主要内容包括：本发明公开了一种旋入式背栓及其面板安装方法,包括限位螺杆和背栓套,所述背栓套一端用于所述限位螺杆旋入,另外一端安装有用于所述限位螺杆撑开的膨胀部,所述膨胀部用于接触锚栓孔的一端呈台阶式依次设置第一锥面和第二锥面,所述第一锥面用于卡接在锚栓孔内,所述第二锥面用于所述背栓套与锚栓孔侧壁不接触；本发明通过在锚栓套上设置第一锥面和第二锥面的方式,使得背栓套在与锚栓孔卡接的同时,使得背栓套与锚栓孔侧壁之间留有空隙,保证胶粘剂顺利进入到空隙中,从而增强背栓套与锚栓孔的连接强度。(The invention discloses a screw-in back bolt and a panel mounting method thereof, and the screw-in back bolt comprises a limit screw and a back bolt sleeve, wherein one end of the back bolt sleeve is used for screwing in the limit screw, the other end of the back bolt sleeve is provided with an expansion part used for opening the limit screw, one end of the expansion part used for contacting an anchor bolt hole is sequentially provided with a first conical surface and a second conical surface in a stepped manner, the first conical surface is used for being clamped in the anchor bolt hole, and the second conical surface is used for ensuring that the back bolt sleeve is not contacted with the side wall of the anchor bolt hole; according to the invention, the first conical surface and the second conical surface are arranged on the anchor bolt sleeve, so that the back bolt sleeve is clamped with the anchor bolt hole, a gap is reserved between the back bolt sleeve and the side wall of the anchor bolt hole, and an adhesive is ensured to smoothly enter the gap, thereby enhancing the connection strength of the back bolt sleeve and the anchor bolt hole.)

1. The utility model provides a screw-in back of body bolt, a serial communication port, including stop screw and back of the body bolt cover, back of the body bolt cover one end is used for stop screw in, one end is installed in addition and is used for the inflation portion that stop screw struts, the one end that inflation portion is used for contacting the anchor bolt hole is the step and sets gradually first conical surface and second conical surface, first conical surface is used for the joint downthehole at the anchor bolt, the second conical surface is used for back of the body bolt cover and anchor bolt hole lateral wall contactless.

2. The screw-in back bolt of claim 1, wherein the limit bolt comprises a limit wire, and the limit wire is annularly mounted on the surface of the limit bolt and used for preventing the limit bolt from screwing in.

3. A method of installing a panel based on a screw-in back bolt, wherein the screw-in back bolt of any one of claims 1-2 is applied, comprising:

step A: drilling anchor bolt holes on the back of the panel;

and B: injecting an adhesive into the anchor bolt hole;

and C: putting a back bolt sleeve of the back bolt into the anchor bolt hole;

step D: and screwing the limit screw of the back bolt into the back bolt sleeve to expand the back bolt sleeve.

4. The method of installing a panel based on a screw-in back bolt of claim 3, wherein the step A comprises:

step A1: drilling a straight hole on the back of the panel;

step A2: and expanding the bottom of the straight hole into a reaming hole, wherein the reaming hole is provided with a pressure bearing surface capable of clamping and locking the expanded back bolt sleeve in the axial direction.

5. The method of installing a panel based on a screw-in back bolt of claim 3, wherein the step B comprises:

step B1: and injecting an adhesive into the anchor bolt hole, wherein the injection amount meets the following requirements: the adhesive can fill all or part of holes in the anchor bolt hole after the back bolt sleeve is expanded; wherein the adhesive comprises epoxy resin AB adhesive.

6. The method of installing a panel based on a screw-in back bolt of claim 3, wherein the step C comprises:

step C1: pushing a back bolt sleeve of a back bolt into the anchor bolt hole until the front end of the back bolt sleeve is jacked to the bottom of the anchor bolt hole, wherein the first conical surface is in contact clamping connection with the counterbored hole, and the second conical surface is not in contact with the anchor bolt hole and is reserved with a gap;

wherein, before being expanded, the maximum diameter of the back bolt sleeve is smaller than the minimum aperture of the anchor bolt hole.

7. The method of installing a screw-in back bolt based panel of claim 4, wherein step D comprises:

step D1: screwing the limit screw in place; wherein, the screw in of spacing screw rod is in place, indicates: the front part of the back bolt sleeve is clamped and locked in the axial direction until the pressure bearing surface can be reamed after being unfolded, and the back bolt sleeve can freely rotate in the anchor bolt hole.

Technical Field

The invention relates to the field of back bolts, in particular to a screw-in back bolt and a curtain wall and panel installation method thereof, and particularly relates to a double-conical screw-in back bolt.

Background

In the prior art, there are generally two ways to implement the installation of curtain walls. One way is to use adhesive to bond the panels, in which all the bearing capacity of the panels comes from the adhesive force of the adhesive, which is not favorable for long-time dry hanging of the panels and is complicated in construction. The other mode is to adopt an expansion type anchor bolt, and an expansion piece is utilized to extrude the wall of the anchor hole to form the anchor bolt with the anchoring effect. The expansion piece is made to expand by utilizing the opposite movement of the cone body and the expansion piece, expansion pressure is generated between the expansion piece and the hole wall panel, and pulling resistance is generated through shearing friction effect to realize an assembly anchored by the connecting piece.

Disclosure of Invention

The invention aims to provide a screw-in back bolt and a panel mounting method thereof to achieve the purpose of enhancing the connection strength of a back bolt sleeve and an anchor bolt hole.

In order to achieve the purpose, the invention provides the following scheme:

the utility model provides a screw-in back of body bolt, includes stop screw and back of the body bolt cover, back of the body bolt cover one end is used for stop screw in, one end is installed and is used for in addition the inflation portion that stop screw strutted, the one end that inflation portion is used for contacting the anchor bolt hole is the step and sets gradually first conical surface and second conical surface, first conical surface is used for the joint downthehole at the anchor bolt, the second conical surface is used for back of the body bolt cover and anchor bolt hole lateral wall contactless.

Preferably, the limiting bolt comprises a limiting line, and the limiting line is annularly arranged on the surface of the limiting bolt and used for preventing the limiting bolt from screwing in.

A method of installing a panel based on a screw-in back bolt, comprising:

step A: drilling anchor bolt holes on the back of the panel;

and B: injecting an adhesive into the anchor bolt hole;

and C: putting a back bolt sleeve of the back bolt into the anchor bolt hole;

step D: and screwing the limit screw of the back bolt into the back bolt sleeve to expand the back bolt sleeve.

Preferably, the step a includes:

step A1: drilling a straight hole on the back of the panel;

step A2: and expanding the bottom of the straight hole into a reaming hole, wherein the reaming hole is provided with a pressure bearing surface capable of clamping and locking the expanded back bolt sleeve in the axial direction.

Preferably, the step B includes:

step B1: and injecting an adhesive into the anchor bolt hole, wherein the injection amount meets the following requirements: the adhesive can fill all or part of holes in the anchor bolt hole after the back bolt sleeve is expanded; wherein the adhesive comprises epoxy resin AB adhesive.

Preferably, the step C includes:

step C1: pushing a back bolt sleeve of a back bolt into the anchor bolt hole until the front end of the back bolt sleeve is jacked to the bottom of the anchor bolt hole, wherein the first conical surface is in contact clamping connection with the counterbored hole, and the second conical surface is not in contact with the anchor bolt hole and is reserved with a gap;

wherein, before being expanded, the maximum diameter of the back bolt sleeve is smaller than the minimum aperture of the anchor bolt hole.

Preferably, the step D includes:

step D1: screwing the limit screw in place; wherein, the screw in of spacing screw rod is in place, indicates: the front part of the back bolt sleeve is clamped and locked in the axial direction until the pressure bearing surface can be reamed after being unfolded, and the back bolt sleeve can freely rotate in the anchor bolt hole.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention combines mechanical locking and chemical bonding, greatly improves the strength of the mounting structure of the panel, and is simple, convenient and safe to mount.

2. The invention is suitable for various curtain wall panel materials, can be applied to 9 mm plates, saves expensive fabric expenditure due to more thin plates, and reduces the limitation on the material selection of the curtain wall external panel due to the strong requirement of a building structure.

3. The invention adopts the completely inosculated back bolt in the expanding hole expanded at the bottom of the anchor bolt hole, so that enough strong supporting force can be realized, and no internal stress is generated on the panel, thereby reducing the breakage rate of the panel.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the back bolt after installation. O represents the exposed length of the check screw.

Fig. 2 is an exploded schematic view of fig. 1. D represents the axial length of the back bolt sleeve. S represents the length of the limit screw.

Fig. 3 is a schematic structural view of the back bolt after installation.

Fig. 4 is a schematic structural view of the back bolt after installation.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is a schematic structural view of the back bolt sleeve before being expanded.

In the figure:

1-Panel

101-straight hole section

102-reaming section

103-pressure bearing face

2-Back bolt sleeve

201-first taper

202-second tapered surface

3-limiting screw

301-position line (also called limiting line)

4-mounting bracket (also can be called as pendant)

5-slip-resistant nut

6-Adhesives

1. A panel; 101. a straight hole section; 102. a reaming section; 103. a pressure bearing face; 2. a back bolt sleeve; 201. a first conical surface; 202. a second tapered surface; 3. a limit screw; 301. positioning a line; 4. mounting a bracket; 5. a slip-resistant nut; 6. and (3) an adhesive.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

The invention provides a screw-in back bolt, a panel mounting method based on the screw-in back bolt, and a curtain wall based on the screw-in back bolt and the mounting method. The present invention will be specifically explained below.

The invention provides a panel installation method based on a screw-in back bolt, which comprises the following steps:

step A: drilling anchor bolt holes on the back of the panel 1;

and B: injecting an adhesive 6 into the anchor bolt hole;

and C: putting a back bolt sleeve 2 of a back bolt into the anchor bolt hole;

step D: screwing a limit screw 3 of the back bolt into the back bolt sleeve 2 to open the back bolt sleeve 2;

step E: and (3) screwing a non-slip nut 5 on the limiting screw rod 3 to lock the mounting bracket 4 (metal hanging piece).

The step A comprises the following steps: step A1: drilling a straight hole on the back of the panel 1; step A2: the bottom of the straight hole is expanded into a counterbore with a bearing surface 103 capable of axially snap-locking the expanded back bolt sleeve 2.

Preferably, the counterbore can lock the distracted back bolt sleeve 2 in the axial direction only.

The step B comprises the following steps: step B1: and injecting an adhesive 6 into the anchor bolt hole, wherein the injection amount meets the following requirements: the adhesive 6 can fill all or part of the holes in the anchor holes after the back bolt sleeve 2 is expanded. Preferably, the adhesive 6 can be epoxy AB glue (preferably adopting series 6101 and 618 with high elasticity), and the back bolt sleeve 2 is installed and the limit screw 3 is installed in place within the epoxy time of the glue. The amount of cement 6 injected may be 50% of the anchor eye depth. Back of the body bolt cover 2 is when installing stop screw 3, and the epoxy is glued and is all filled all holes in the crab-bolt hole, and then guarantees that all back of the body bolts on the panel 1 are effective and atress, reduces the risk that panel 1 dropped to zero.

The step C comprises the following steps: step C1: pushing the back bolt sleeve 2 of the back bolt into the anchor bolt hole until the front end of the back bolt sleeve 2 props against the bottom of the anchor bolt hole; wherein, before being expanded, the maximum diameter of the back bolt sleeve 2 is smaller than the minimum aperture of the anchor bolt hole. The back bolt sleeve 2 can be partially or completely embedded in the anchor bolt hole.

The step D comprises the following steps: step D1: screwing the limit screw 3 in place; wherein, the screw in of spacing screw rod 3 is in place, means: the front part of the back bolt sleeve 2 is expanded until the bearing surface 103 which can be reamed is clamped and locked in the axial direction, and the back bolt sleeve 2 can freely rotate in the anchor bolt hole. Preferably, the limit screw 3 is provided with a limit line, and when the limit line is flush with the orifice of the anchor bolt hole or the rear end surface of the back bolt sleeve 2, the limit screw 3 is just screwed in place. Through the continuous rotation of the limiting screw 3, the limiting screw 3 is screwed into the back bolt sleeve 2 in the panel 1 layer by layer, and the limiting screw 3 can be installed in place when rotating in place according to the indication of a limiting line. The rotating torque force in the whole process is only 12 Nm/s, and after the installation, before the adhesive 6 is solidified, the back bolt can freely rotate in the anchor bolt hole of the panel 1 to avoid stress concentration in the panel 1.

The screw-in back bolt provided by the invention comprises a back bolt sleeve 2 and a limiting screw rod 3; the front part of the back bolt sleeve 2 is an expansion part which can be propped open by the limit screw 3; the limiting screw 3 is screwed in from the rear part of the back bolt sleeve 2; when the expansion part is not expanded, the outer diameter of the expansion part is smaller than the outer diameter of the rear part of the back bolt sleeve 2.

As shown in fig. 1, the expansion portion of the back plug sleeve 2 is provided with two tapered surfaces, which are respectively referred to as a first tapered surface 201 and a second tapered surface 202. Wherein, the cone surface is the local side shape of the frustum. More specifically, the first tapered surface 201 is matched with the bearing surface 103 of the counterbore, that is, the first tapered surface 201 is clamped inside the bearing surface 103, so that the back bolt sleeve 2 cannot be pulled out of the counterbore; the second conical surface 202 is matched with the adhesive 6, so that the strength of the screw-in back bolt is greatly improved.

According to the curtain wall provided by the invention, the curtain wall is installed by adopting the panel installation method based on the screw-in back bolts.

The curtain wall provided by the invention comprises a panel 1 and the screw-in back bolt; an anchor bolt hole is drilled in the back surface of the panel 1, a back bolt sleeve 2 of the screwed back bolt is positioned in the anchor bolt hole, and the back bolt sleeve 2 is opened by a screwed limiting screw rod 3; the back bolt sleeve 2 which is expanded is locked by the anchor bolt hole in the axial direction; the back bolt sleeve 2 is fixedly connected with the anchor bolt hole through an adhesive 6 in the circumferential direction and the radial direction.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.