CN215716107U

CN215716107U - Bolt ball node with high-strength bolt with known depth

Info

Publication number: CN215716107U
Application number: CN202122090240.3U
Authority: CN
Inventors: 杨秀刁; 姚方育; 刘子琛; 寇志强; 韩俊伟; 赵介芝; 王睿; 梁慧娟
Original assignee: Shanxi Construction Engineering Group Co Ltd
Current assignee: Shanxi Construction Engineering Group Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-01
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a bolt ball node with a high-strength bolt with a known depth, which comprises a bolt ball with a screw hole, a steel sleeve with a hole, a pin, a conical head and a high-strength bolt, wherein an L-shaped chute is formed in the surface of the high-strength bolt along the axial direction of the high-strength bolt, the width of the L-shaped chute is slightly larger than the diameter of the hole and the diameter of the pin, the steel sleeve is sleeved outside the high-strength bolt, the pin penetrates through the hole, and the tail end of the pin is arranged in the L-shaped chute in a sliding manner. The bolt ball joint with the known depth of the high-strength bolt can determine the tightening degree of the bolt, ensure that the bolt meets the stress requirement and ensure the safety of the structure.

Description

Bolt ball node with high-strength bolt with known depth

Technical Field

The utility model relates to the technical field of structural engineering, in particular to a bolt ball joint with a high-strength bolt with a known depth.

Background

With the increasing demand of China for large-span structures, space grid structures are increasingly used. The bolt ball joint is increasingly applied by the bright characteristics of excellent stress performance, high assembly degree, simple and rapid construction process and the like. While the advantages of the stud-and-ball joint are numerous, there are also drawbacks. Among them, the most serious defect is the phenomenon of "false tightening". Traditional bolt ball node needs drive the rotation of sleeve and bolt through rotating the pin, nevertheless because steel sleeve and conical head wrap up the bolt wherein, leads to constructor can't observe the bolt depth, can only judge whether it reachs preset position through the bolt can't go forward. If the position of the bolt does not reach the preset position, namely the phenomenon of 'false screwing', the bearing capacity of the bolt is greatly influenced, so that the safety of the structure is threatened; even major safety issues like structural collapse may occur.

SUMMERY OF THE UTILITY MODEL

For solving prior art's shortcoming and not enough, provide a bolt ball node that high strength bolt depth degree is known to confirm the degree of screwing up of bolt, ensure that the bolt reaches the atress requirement, guarantee the safety of structure.

The bolt ball node with the known depth of the high-strength bolt comprises a bolt ball with a screw hole, a steel sleeve with a hole, a pin, a conical head and the high-strength bolt, wherein an L-shaped sliding groove is formed in the surface of the high-strength bolt along the axial direction of the high-strength bolt, the width of the L-shaped sliding groove is slightly larger than the diameter of the hole and the diameter of the pin, the steel sleeve is sleeved outside the high-strength bolt, the pin penetrates through the hole, and the tail end of the pin is arranged in the L-shaped sliding groove in a sliding mode.

As a further improvement of the scheme, the thread length of the high-strength bolt is the same as that of the L-shaped sliding groove.

As a further improvement of the scheme, the surface of the high-strength bolt is coated with a fluorescent coating outside the L-shaped sliding groove, an observation hole is formed in the position, on the same side of the steel sleeve and the hole, of the steel sleeve, and the straight line where the circle center of the observation hole and the circle center of the hole are located is parallel to the axis of the steel sleeve.

The utility model has the beneficial effects that:

compared with the prior art, the bolt ball joint with the high-strength bolt with the known depth is characterized in that a steel sleeve is sleeved outside the high-strength bolt, a pin is inserted into a hole and reaches an L-shaped sliding groove, the high-strength bolt extends into a screw hole, the steel sleeve is rotated to drive the high-strength bolt to rotate along with the high-strength bolt, so that the screwing process is completed, in the process, the high-strength bolt is continuously fed inwards along the screw hole, the pin moves upwards along the L-shaped sliding groove, when the high-strength bolt reaches a preset position, the pin also reaches the tail end of the L-shaped sliding groove, at the moment, the steel sleeve is rotated again to generate an idling phenomenon, the high-strength bolt is considered to be screwed, and therefore the false screwing phenomenon is avoided. The bolt ball joint with the known depth of the high-strength bolt can determine the tightening degree of the bolt, ensure that the bolt meets the stress requirement and ensure the safety of the structure.

Drawings

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a high strength bolt of the present invention;

fig. 3 is a cross-sectional view of fig. 1.

Detailed Description

As shown in fig. 1-3, the bolt ball joint with a known depth of the high-strength bolt provided by the utility model comprises a bolt ball 3 with a screw hole 4, a steel sleeve 5 with a hole 6, a pin 8, a conical head 7 and the high-strength bolt 1, wherein an L-shaped chute 2 is arranged on the surface of the high-strength bolt 1 along the axial direction of the high-strength bolt, and the length of the thread of the high-strength bolt 1 is the same as that of the L-shaped chute 2. The width of L type spout 2 slightly is greater than 6 diameters in hole and the diameter of

8, and 5 suits of steel sleeve are in the outside of high strength bolt 1, and pin 8 is penetrated by hole 6, and the end slides and sets up in L type spout 2.

As a further improvement of the scheme, the surface of the high-strength bolt 1 is coated with a fluorescent coating outside the L-shaped sliding chute 2, an observation hole is formed in the position, on the same side of the steel sleeve 5 and the hole 6, of the steel sleeve, and the straight line where the circle center of the observation hole and the circle center of the hole 6 are located is parallel to the axis of the steel sleeve 5. When the high-strength bolt 1 does not reach the designated position, the pin 8 is always located at the long groove part of the L-shaped chute 2, the corresponding observation hole can only see the long groove part of the L-shaped chute 2, when the high-strength bolt 1 reaches the preset position, the pin 8 also reaches the tail end of the long groove part of the L-shaped chute 2, the steel sleeve 5 is rotated again to cause an idle rotation phenomenon, at the moment, the pin 8 is located at the short groove part of the L-shaped chute 2, and the fluorescent coating outside the L-shaped chute 2 of the high-strength bolt 1 can be seen at the observation hole, so that whether the high-strength bolt 1 is screwed down or not is checked conveniently.

The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.

Claims

1. The utility model provides a bolt ball node that high strength bolt depth degree is known which characterized in that: including the bolt ball that opens the screw, the steel sleeve that has the hole, pin, conical head and high strength bolt, L type spout has been seted up along its axial in the surface of high strength bolt, the width of L type spout slightly is greater than hole diameter and pin diameter, the steel sleeve suit is in the outside of high strength bolt, the pin by the hole penetrates, and terminal slip sets up in the L type spout.

2. A high strength bolt depth aware bolt-ball joint as defined in claim 1 wherein: the thread length of the high-strength bolt is the same as the length of the L-shaped sliding groove.

3. A high strength bolt depth aware bolt-ball joint as defined in claim 1 wherein: the surface of the high-strength bolt is coated with a fluorescent coating outside the L-shaped sliding groove, an observation hole is formed in the position, on the same side of the steel sleeve and the hole, of the steel sleeve, and the straight line where the circle center of the observation hole and the circle center of the hole are located is parallel to the axis of the steel sleeve.