High-strength bolt for steel truss bolt-sphere joint

Abstract

The utility model relates to the technical field of high-strength bolts, and provides a high-strength bolt for a steel net rack bolt-sphere node, which comprises a rod piece, a connecting pipe, a connecting mechanism and a tensioning mechanism, the connecting pipe is fixedly connected to one end of the rod piece, one end of the connecting pipe is provided with a sliding hole, the connecting mechanism is arranged on the connecting pipe, and the tensioning mechanism is arranged on the connecting pipe. The connecting device comprises a connecting pipe and a tensioning mechanism, the connecting pipe is arranged on the connecting pipe and used for connecting the steel net rack bolt-sphere joint and a rod piece, the tensioning mechanism is arranged on the connecting pipe and used for tensioning the steel net rack bolt-sphere joint and the rod piece, and the connecting mechanism comprises a sliding rod, a baffle, a connecting screw rod and a tensioning plate. The two ends of the rod piece are difficult to screw up at the same time, so that the mounting stability of the high-strength bolt and the steel net rack bolt-sphere joint is easily influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-strength bolts, in particular to a high-strength bolt for a steel grid bolt ball node. Background Art

[0002] High-strength bolts are used in steel grid bolt ball nodes to connect steel frames (such as scaffolding, etc.). Due to the use of high-strength bolts, the stability and reliability of the connection are improved, and their use in fastener connections is generally increasing.

[0003] After the existing high-strength bolts and steel truss bolt ball nodes are installed, they are prone to loosening after long-term use, and the threaded rods at both ends of the high-strength bolts are fixedly connected to the rod. When the threaded rod on one side is loose, it is necessary to rotate the rod to tighten the threaded rod at one end. At this time, the threaded rod at the other end will restrict the rotation of the rod. Even after the loose side is tightened, the other side will also loosen as the rod rotates, which can easily affect the stability of the installation of the high-strength bolts and steel truss bolt ball nodes. Utility Model Content

[0004] The utility model proposes a high-strength bolt for a steel truss bolt ball node, which solves the problem in the related art that when one side of the high-strength bolt becomes loose, it is difficult to tighten both ends of the rod at the same time, which easily affects the stability of the installation of the high-strength bolt and the steel truss bolt ball node.

[0005] The technical solution of the utility model is as follows: a high-strength bolt for a steel grid bolt ball node comprises: a rod, a connecting pipe, a connecting mechanism and a tensioning mechanism;

[0006] The connecting pipe is fixedly connected to one end of the rod, and a sliding hole is opened at one end of the connecting pipe;

[0007] The connecting mechanism is provided on the connecting pipe and is used to connect the steel grid bolt ball node and the rod;

[0008] The tensioning mechanism is arranged on the connecting pipe and is used to tighten the steel grid bolt ball node and the rod.

[0009] Preferably, the connecting mechanism includes: a sliding rod, a baffle, a connecting screw and a tensioning plate;

[0010] The slide rod is slidably and rotatably connected in the slide hole;

[0011] The baffle is fixedly connected to one end of the slide rod;

[0012] The connecting screw is fixedly connected to one side of the baffle;

[0013] The tensioning plate is rotatably connected to the other end of the sliding rod.

[0014] Furthermore, the tensioning mechanism includes: a slider, a tensioning block, a moving ring, a driving assembly and a limiting assembly;

[0015] The connecting pipe is provided with two chute grooves, and the two chute grooves are both slidably connected with a slider;

[0016] The two sliders are both fixedly connected with a tensioning block, and the tensioning plate is located between the two tensioning blocks;

[0017] The movable ring is sleeved on the circumferential surface of the connecting pipe, and the two sliders are fixedly connected to the inner wall of the movable ring;

[0018] The driving assembly is provided on the connecting pipe and is used to drive the moving ring to move axially on the connecting pipe;

[0019] The limiting assembly is arranged on the circumferential surface of the connecting pipe and is used to limit the driving assembly.

[0020] Furthermore, the drive assembly includes: a drive screw, a drive block, a drive rod, a drive gear and a gear ring;

[0021] The driving screw is rotatably connected to the circumferential surface of the connecting pipe;

[0022] The driving block is fixedly connected to the moving ring, and a screw hole is provided on the driving block, and the driving screw is threadedly connected in the screw hole;

[0023] One end of the driving rod is fixedly connected to the end opposite to the driving screw;

[0024] The driving gear is fixedly connected to the other end of the driving rod;

[0025] The gear ring is rotatably connected to the circumferential surface of the connecting pipe, and the gear ring is fixedly connected to the driving gear.

[0026] As a further solution of the present application, the limiting assembly includes: a limiting frame, a limiting rod, a limiting block and a support spring;

[0027] The limiting frame is fixedly connected to the circumferential surface of the connecting pipe;

[0028] The limiting frame is provided with a sliding hole, and the limiting rod is slidably connected in the sliding hole;

[0029] The limit block is fixedly connected to the bottom end of the limit rod, and a tooth groove matching the driving gear is formed on the limit block, and the driving gear is meshed with the tooth groove;

[0030] The support spring is sleeved on the circumferential surface of the limiting rod, and both ends of the support spring are respectively fixedly connected between the limiting block and the limiting frame.

[0031] As a further solution of the present application, a pull rod is fixedly connected to the gear ring.

[0032] The working principle and beneficial effects of the utility model are as follows:

[0033] In the utility model, through the cooperation between the rod, the connecting pipe, the connecting mechanism and the tightening mechanism, it is convenient to rotate and connect the connecting screw and the rod, and then the connecting screws at both ends of the rod can be rotated separately, and it is convenient to tighten the high-strength bolts and the steel grid bolt ball node after connection, so that the high-strength bolts and the steel grid bolt ball node can be installed quickly and stably, which improves stability and installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 This is a schematic diagram of the structure of the utility model in cross section;

[0037] Figure 3 This is a structural diagram of the connecting mechanism and the tensioning mechanism of the utility model;

[0038] Figure 4 For this utility model Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0039] In the figure: 1. Rod; 2. Connecting pipe; 3. Sliding rod; 4. Baffle; 5. Connecting screw; 6. Tension plate; 7. Sliding block; 8. Tension block; 9. Moving ring; 10. Driving screw; 11. Driving block; 12. Driving rod; 13. Driving gear; 14. Gear ring; 15. Limiting frame; 16. Limiting rod; 17. Limiting block; 18. Support spring; 19. Pull rod. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] like Figures 1 to 4As shown, this embodiment proposes a high-strength bolt for a steel truss bolt ball node, including: a rod 1, a connecting pipe 2, a connecting mechanism and a tightening mechanism. The connecting pipe 2 is fixedly connected to one end of the rod 1, and a sliding hole is opened at one end of the connecting pipe 2. Through the cooperation between the rod 1, the connecting pipe 2, the connecting mechanism and the tightening mechanism, it is convenient to rotate the connecting screw 5 and the rod 1, and then the connecting screws 5 at both ends of the rod 1 can be rotated separately, and it is convenient to tighten the high-strength bolt and the steel truss bolt ball node after connection, so that the high-strength bolt and the steel truss bolt ball node can be quickly and stably installed, which improves stability while also improving installation efficiency.

[0042] Among them, the connecting mechanism is arranged on the connecting pipe 2, which is used to connect the steel grid bolt ball node and the rod 1. The connecting mechanism includes: a sliding rod 3, a baffle 4, a connecting screw 5 and a tensioning plate 6. The sliding rod 3 slides and rotates in the sliding hole, the baffle 4 is fixedly connected to one end of the sliding rod 3, the connecting screw 5 is fixedly connected to one side of the baffle 4, and the tensioning plate 6 is rotatably connected to the other end of the sliding rod 3. Specifically, the sliding rod 3 rotates in the sliding hole and can also slide in the sliding hole. After the connecting screw 5 is tightened in the screw hole, the sliding rod 3 and the connecting screw 5 are rotated separately, so that the rod 1 does not need to be rotated, thereby realizing the separate tightening of the connecting screw 5.

[0043] Among them, the tensioning mechanism is arranged on the connecting pipe 2, which is used to tighten the steel grid bolt ball node and the rod 1. The tensioning mechanism includes: a slider 7, a tensioning block 8, a moving ring 9, a driving assembly and a limit assembly. Two slide grooves are provided on the connecting pipe 2, and sliders 7 are slidably connected in the two slide grooves. The two sliders 7 are fixedly connected with tensioning blocks 8. The tensioning plate 6 is located between the two tensioning blocks 8. The moving ring 9 is sleeved on the circumferential surface of the connecting pipe 2. The two sliders 7 are fixedly connected to the inner wall of the moving ring 9. The driving assembly is arranged on the connecting pipe 2 to drive the moving ring 9 to move in the connecting pipe. 2 for axial movement, the limiting assembly is arranged on the circumferential surface of the connecting pipe 2, and is used to limit the driving assembly. The driving assembly includes: a driving screw 10, a driving block 11, a driving rod 12, a driving gear 13 and a gear ring 14. The gear ring 14 is fixedly connected with a pull rod 19. The driving screw 10 is rotatably connected to the circumferential surface of the connecting pipe 2. The driving block 11 is fixedly connected to the moving ring 9. A screw hole is opened on the driving block 11, and the driving screw 10 is threadedly connected in the screw hole. One end of the driving rod 12 is fixedly connected to the end opposite to the driving screw 10, and the driving gear 13 is fixedly connected to The other end of the driving rod 12 is fixedly connected, the gear ring 14 is rotatably connected to the circumferential surface of the connecting pipe 2, the gear ring 14 is fixedly connected to the driving gear 13, and the limiting assembly includes: a limiting frame 15, a limiting rod 16, a limiting block 17 and a support spring 18. The limiting frame 15 is fixedly connected to the circumferential surface of the connecting pipe 2, a sliding hole is provided on the limiting frame 15, the limiting rod 16 is slidably connected in the sliding hole, the limiting block 17 is fixedly connected to the bottom end of the limiting rod 16, and a tooth groove matching the driving gear 13 is provided on the limiting block 17. The driving gear 13 is engaged with the tooth groove, and the support spring 18 is sleeved on the limiting rod 16. circumferential surface, the two ends of the support spring 18 are respectively fixedly connected between the limit block 17 and the limit frame 15. Specifically, the operator toggles the pull rod 19 to drive the gear ring 14 to rotate, and when the gear ring 14 rotates, it drives the driving gear 13 to rotate. When the driving gear ring 14 rotates, it drives the driving rod 12 and the driving screw 10 to rotate, thereby driving the driving block 11 and the moving ring 9 to move in the direction of the gear ring 14. When the moving ring 9 moves, it drives the two sliders 7 and the two tensioning blocks 8 to move synchronously, thereby pulling the tensioning plate 6 and the slide rod 3, thereby tightening the connecting screw 5 and the screw hole.

[0044] In this embodiment, when looseness occurs between the connecting screw 5 and the screw hole, the operator only needs to rotate the slide rod 3 to drive the connecting screw 5 to rotate, thereby tightening the connecting screw 5 in the screw hole. After that, the operator drives the gear ring 14 to rotate by toggling the pull rod 19. When the gear ring 14 rotates, it drives the driving gear 13 to rotate. When the driving gear ring 14 rotates, it drives the driving rod 12 and the driving screw 10 to rotate, thereby driving the driving block 11 and the moving ring 9 to move in the direction of the gear ring 14. When the moving ring 9 moves, it drives the two sliders 7 and the two tensioning blocks 8 to move synchronously, thereby pulling the tensioning plate 6 and the slide rod 3, thereby tightening the connecting screw 5 and the screw hole, thereby effectively preventing subsequent loosening between the connecting screw 5 and the screw hole.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. High-strength bolts for steel grid bolt ball nodes, characterized by: include: Rod (1); A connecting pipe (2), the connecting pipe (2) being fixedly connected to one end of the rod (1), and a sliding hole being provided at one end of the connecting pipe (2); A connecting mechanism, the connecting mechanism being arranged on one side of the connecting pipe (2) and being used to connect the steel grid bolt ball node and the rod (1); A tensioning mechanism is provided in the connecting pipe (2) and is used to tension the steel grid bolt ball node and the rod (1).

2. The high-strength bolt for steel grid bolt ball node according to claim 1, characterized in that: The connecting mechanism comprises: A slide rod (3), the slide rod (3) being slidably and rotatably connected in the slide hole; a baffle (4), the baffle (4) being fixedly connected to one end of the slide rod (3); A connecting screw (5), the connecting screw (5) being fixedly connected to one side of the baffle (4); A tensioning plate (6) is rotatably connected to the other end of the sliding rod (3).

3. The high-strength bolt for steel grid bolt ball node according to claim 2, characterized in that: The tensioning mechanism comprises: A slider (7), wherein two slide grooves are provided on the connecting pipe (2), and the slider (7) is slidably connected in both of the slide grooves; A tensioning block (8), wherein the two sliders (7) are both fixedly connected with the tensioning block (8), and the tensioning plate (6) is located between the two tensioning blocks (8); A moving ring (9), the moving ring (9) is sleeved on the circumferential surface of the connecting pipe (2), and the two sliders (7) are fixedly connected to the inner wall of the moving ring (9); a drive assembly, the drive assembly being arranged on the connecting pipe (2) and being used to drive the moving ring (9) to move axially on the connecting pipe (2); A limiting component is provided on the circumferential surface of the connecting pipe (2) and is used to limit the driving component.

4. The high-strength bolt for a steel grid bolt ball node according to claim 3, characterized in that: The drive assembly includes: a driving screw (10), the driving screw (10) being rotatably connected to the circumferential surface of the connecting pipe (2); A driving block (11), the driving block (11) is fixedly connected to the moving ring (9), a screw hole is provided on the driving block (11), and the driving screw (10) is threadedly connected in the screw hole; A driving rod (12), one end of the driving rod (12) being fixedly connected to an end opposite to the driving screw rod (10); A driving gear (13), the driving gear (13) being fixedly connected to the other end of the driving rod (12); A gear ring (14), the gear ring (14) is rotatably connected to the circumferential surface of the connecting pipe (2), and the gear ring (14) is fixedly connected to the driving gear (13).

5. The high-strength bolt for steel grid bolt ball node according to claim 4, characterized in that: The limiting component includes: A limiting frame (15), the limiting frame (15) being fixedly connected to the circumferential surface of the connecting pipe (2); A limiting rod (16), wherein a sliding hole is provided on the limiting frame (15), and the limiting rod (16) is slidably connected in the sliding hole; a limit block (17), the limit block (17) being fixedly connected to the bottom end of the limit rod (16), the limit block (17) being provided with a tooth groove matching the driving gear (13), the driving gear (13) being meshed with the tooth groove; A support spring (18) is sleeved on the circumferential surface of the limiting rod (16), and two ends of the support spring (18) are respectively fixedly connected between the limiting block (17) and the limiting frame (15).

6. The high-strength bolt for a steel grid bolt ball node according to claim 5, characterized in that: A pull rod (19) is fixedly connected to the gear ring (14).

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