CN216041691U

CN216041691U - Ball joint high-strength bolt for steel structure net rack

Info

Publication number: CN216041691U
Application number: CN202122289159.8U
Authority: CN
Inventors: 何美萍
Original assignee: Hangzhou Hualing Steel Structure High Strength Bolt Co ltd
Current assignee: Hangzhou Hualing Steel Structure High Strength Bolt Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-15
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a ball joint high-strength bolt for a steel structure net rack, which relates to the technical field of bolts and comprises a steel pipe, a conical head and a bolt ball, wherein the conical head is fixedly welded at one end of the steel pipe, the bolt ball is arranged at one side of the conical head, a plurality of limiting grooves are formed in the outer surface of a limiting column, a positioning assembly is arranged at one side inside the limiting grooves, and a sleeve assembly is sleeved on the outer wall of the limiting column. The installation process is quicker and more convenient, and the installation work efficiency is greatly improved.

Description

Ball joint high-strength bolt for steel structure net rack

Technical Field

The utility model relates to the technical field of bolts, in particular to a ball joint high-strength bolt for a steel structure net rack.

Background

The bolt ball node comprises parts such as bolt, steel ball, pin (or screw), sleeve and conical head or shrouding, is applicable to and connects steel pipe member, mainly used spatial grid structure, and the connection structure principle of bolt ball node is: the method comprises the steps of firstly welding conical heads or sealing plates provided with bolts at two ends of a steel pipe rod piece, sleeving long hexagonal sleeves (or long hexagonal non-threaded nuts) on screw rods extending out of the conical heads or the sealing plates, connecting the bolts and the sleeves together by pins or fastening screws, directly screwing the long hexagonal sleeves during assembly, driving the bolts to rotate by the pins or the fastening screws, so that the bolts are screwed into a sphere until the bolt heads are tightly attached to the sealing plates or the conical heads, connecting all converging rod pieces to form nodes, and controlling the screwing degree of the bolts by the pins.

But the synchronous rotation of sleeve and bolt is through the effect of pin, because the pin cross-section is less, when required moment of torsion is great, the pin is easily twisted off, causes the unable tightening of high strength bolt, and false tightening phenomenon promptly leads to unable fastening connection between bolt and the steel pipe, causes the emergence of incident easily.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a ball joint high-strength bolt for a steel structure net rack, and solves the problems that the traditional bolt is fixedly connected with a sleeve through a pin, the pin has a small sectional area, is easy to twist off when the torque is larger, and is twisted falsely.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a ball node high strength bolt for steel construction rack, includes steel pipe, conical head and bolt ball, the fixed welding of one end of steel pipe has the conical head, one side of conical head is provided with the bolt ball, a plurality of installation screws have been seted up to the outer wall surface of bolt ball, a lateral wall central point of conical head puts threaded hole, and the inside threaded connection of screw hole has the equipment thread head, the spacing post of one end fixedly connected with of equipment thread head, a plurality of spacing grooves have been seted up to the surface of spacing post, inside one side of spacing groove is provided with locating component, the outer wall cover of spacing post is equipped with sleeve subassembly, and the fixed welding of one end of spacing post has fixed thread head.

The sleeve component comprises a sleeve, the inside of the sleeve is of a hollow structure, a plurality of limiting blocks are fixedly arranged on the inner wall of the sleeve in an annular array mode, and limiting holes are formed in one side wall of each limiting block.

Furthermore, the number of the limiting grooves is completely the same as that of the limiting blocks, and the internal structures of the limiting grooves are matched with the limiting blocks.

Furthermore, the locating component comprises a movable hole, a return spring is fixedly arranged in the movable hole, a limiting ball head is movably arranged in the movable hole, and the bottom of the limiting ball head is fixedly connected with the top end of the return spring.

Furthermore, the structure of the limiting ball head is matched with the limiting hole.

Furthermore, the thread structure of the mounting screw hole is matched with the mounting screw hole.

Furthermore, the screwing direction of the assembling thread head is consistent with the screwing direction.

Advantageous effects

The utility model provides a ball joint high-strength bolt for a steel structure net rack. Compared with the prior art, the method has the following beneficial effects:

1. a ball joint high-strength bolt for a steel structure net rack comprises a steel pipe, a conical head and a bolt ball, wherein the conical head is fixedly welded at one end of the steel pipe, the bolt ball is arranged at one side of the conical head, a plurality of installation screw holes are formed in the outer wall surface of the bolt ball, a threaded hole is formed in the central position of one side wall of the conical head, an assembly threaded head is in threaded connection with the inside of the threaded hole, a limiting column is fixedly connected at one end of the assembly threaded head, a plurality of limiting grooves are formed in the outer surface of the limiting column, a positioning assembly is arranged at one side inside of each limiting groove, a sleeve assembly is sleeved on the outer wall of each limiting column, and a fixed threaded head is fixedly welded at one end of each limiting column, the structure is firmer and more stable, and the phenomenon of false tightening of high-strength bolts is avoided.

2. The utility model provides a ball joint high strength bolt for steel construction rack, it is fixed to need not traditional pin between this high strength bolt and the sleeve, need not to carry pin and pin fastening tool etc. during the installation, has reduced carrying of mounting tool, and the installation is quick, convenient more, has improved the work efficiency of installation greatly.

Drawings

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

FIG. 2 is a schematic exploded perspective view of the present invention;

FIG. 3 is a schematic top view of a spacing pillar according to the present invention;

FIG. 4 is an exploded perspective view of the positioning assembly of the present invention;

fig. 5 is a perspective view of the sleeve assembly of the present invention.

In the figure: 1. a steel pipe; 2. a conical head; 3. a bolt ball; 4. mounting a screw hole; 5. assembling a thread head; 6. a limiting column; 7. a limiting groove; 8. a positioning assembly; 801. a movable hole; 802. a return spring; 803. a limiting ball head; 9. a sleeve assembly; 901. a sleeve; 902. a limiting block; 903. a limiting hole; 10. and fixing the screw head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a ball joint high-strength bolt for a steel structure net rack comprises a steel pipe 1, a conical head 2 and a bolt ball 3, wherein the conical head 2 is fixedly welded at one end of the steel pipe 1, the bolt ball 3 is arranged at one side of the conical head 2, a plurality of mounting screw holes 4 are formed in the outer surface of the outer wall of the bolt ball 3, a threaded hole is formed in the central position of one side wall of the conical head 2, an assembling threaded head 5 is connected with the internal thread of the threaded hole, a limiting column 6 is fixedly connected with one end of the assembling threaded head 5, a plurality of limiting grooves 7 are formed in the outer surface of the limiting column 6, a positioning component 8 is arranged at one side of the internal part of each limiting groove 7, a sleeve component 9 is sleeved on the outer wall of each limiting column 6, a fixed threaded head 10 is fixedly welded at one end of each limiting column 6, each sleeve component 9 comprises a sleeve 901, the internal part of each sleeve 901 is of a hollow structure, and a plurality of limiting blocks 902 are fixedly arranged on the inner wall of each sleeve 901 in an annular array mode, spacing hole 903 has all been seted up to a lateral wall of stopper 902, the quantity of spacing groove 7 is the same with stopper 902 completely, and the inner structure and the stopper 902 looks adaptation of spacing groove 7, locating component 8 includes activity hole 801, the fixed reset spring 802 that is provided with in inside of activity hole 801, and the inside activity of activity hole 801 is provided with spacing bulb 803, the bottom of spacing bulb 803 and reset spring 802's top fixed connection, the structure and the spacing hole 903 looks adaptation of spacing bulb 803, the helicitic texture and the fixed thread head 10 looks adaptation of installation screw 4, the direction of screwing of equipment screw head 5 is unanimous with the direction of screwing of fixed thread head 10.

When in use, firstly, the sleeve 901 is connected to the limiting column 6 in a sliding manner by means of the limiting block 902, when in installation, the sleeve 901 is sleeved in from the end of the assembling threaded head 5, the limiting block 902 is aligned with the limiting groove 7 and completely slides into the limiting groove 7, in the sliding process, the side wall of the limiting block 902 extrudes the limiting ball head 803, the limiting ball head 803 is pressed into the movable hole 801, when the limiting hole 903 is aligned with the top end of the limiting ball head 803 on the positioning component 8, the limiting ball head 803 is bounced up and enters into the limiting hole 903 due to the elastic action of the reset spring 802, the sleeve component 9 is fixed in position, then the assembling threaded head 5 is screwed into the threaded hole on the side wall of the conical head 2 by hand, the assembling threaded head 5 is screwed by a tool, then the fixing threaded head 10 is aligned with the installation threaded hole 4, the sleeve 901 is rotated by means of the tool, the sleeve 901 drives the fixing threaded head 10 to enter into the installation threaded hole 4 until one end of the sleeve 901 is tightly attached to the side wall of the bolt ball 3, the installation can be completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ball node high strength bolt for steel construction rack, includes steel pipe (1), conical head (2) and bolt ball (3), the fixed welding of one end of steel pipe (1) has conical head (2), one side of conical head (2) is provided with bolt ball (3), its characterized in that: the outer wall of the bolt ball (3) is provided with a plurality of mounting screw holes (4), a threaded hole is formed in the center of one side wall of the conical head (2), an assembling screw head (5) is connected to the inner threads of the threaded hole, one end of the assembling screw head (5) is fixedly connected with a limiting column (6), a plurality of limiting grooves (7) are formed in the outer surface of the limiting column (6), a positioning assembly (8) is arranged on one side of the inner part of each limiting groove (7), a sleeve assembly (9) is sleeved on the outer wall of each limiting column (6), and a fixed screw head (10) is fixedly welded at one end of each limiting column (6);

the sleeve component (9) comprises a sleeve (901), the interior of the sleeve (901) is of a hollow structure, a plurality of limiting blocks (902) are fixedly arranged on the inner wall of the sleeve (901) in an annular array mode, and limiting holes (903) are formed in one side wall of each limiting block (902).

2. The high-strength bolt with the ball joint for the steel structure net rack according to claim 1, is characterized in that: the number of the limiting grooves (7) is completely the same as that of the limiting blocks (902), and the internal structures of the limiting grooves (7) are matched with the limiting blocks (902).

3. The high-strength bolt with the ball joint for the steel structure net rack according to claim 1, is characterized in that: the positioning assembly (8) comprises a movable hole (801), a return spring (802) is fixedly arranged in the movable hole (801), a limiting ball head (803) is movably arranged in the movable hole (801), and the bottom of the limiting ball head (803) is fixedly connected with the top end of the return spring (802).

4. The high-strength bolt with the ball joint for the steel structure net rack according to the claim 3, is characterized in that: the structure of the limiting ball head (803) is matched with the limiting hole (903).

5. The high-strength bolt with the ball joint for the steel structure net rack according to claim 1, is characterized in that: the thread structure of the mounting screw hole (4) is matched with the fixed thread head (10).

6. The high-strength bolt with the ball joint for the steel structure net rack according to claim 1, is characterized in that: the screwing direction of the assembling thread head (5) is consistent with the screwing direction of the fixing thread head (10).