Steel structure net rack prefabricated part connecting structure

Abstract

The utility model discloses a steel structure net rack prefabricated part connecting structure which comprises a steel ball body and a net rack rod, a threaded connecting sleeve is arranged on the steel ball body, a threaded connector matched with the threaded connecting sleeve in a threaded mode is arranged at the end of the net rack rod, and a secondary locking piece is arranged on the threaded connector. The secondary locking piece comprises a mounting groove formed in the end, away from the net rack rod, of the threaded connector, an open groove is formed in the end, away from the net rack rod, of the mounting groove, the open groove is movably connected with a movable arm, one end of the movable arm extends to the inner side of the mounting groove, and the other end of the movable arm extends to the outer portion of the threaded connector and is provided with clamping teeth. A stress body is movably connected to the position, corresponding to the inner end of the movable arm, of the side wall of the threaded connector, and the outer side of the stress body is an arc face. According to the steel structure net rack prefabricated part connecting structure, the net rack rod is further reinforced after being in threaded connection with the steel ball body through the arranged secondary locking piece, so that the stability of the connecting position of the net rack rod and the steel ball body is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of steel structure grid, in particular to a connection structure of prefabricated components of steel structure grid Background Art

[0002] The connecting fasteners for grid are also called bolt balls. Bolt balls are mostly used in grid structures. The main structural feature is that multiple holes are opened on a ball to connect multiple rods at one point to assemble into a grid.

[0003] However, in the prior art, the bolt ball and the grid rod are only connected by threads. Due to long-term stress, the threads are easily damaged and then loosened, which results in poor safety.

[0004] Therefore, it is necessary to propose a steel structure grid prefabricated component connection structure to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a steel structure grid prefabricated component connection structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The prefabricated component connection structure of a steel structure grid includes a steel sphere and a grid rod. A threaded connection sleeve is provided on the steel sphere. A threaded connection head that is threadably matched with the threaded connection sleeve is provided at the end of the grid rod. A secondary locking piece is provided on the threaded connection head. The secondary locking piece includes a mounting groove arranged at an end of the threaded connection head away from the grid rod. An opening is provided at the end of the mounting groove away from the grid rod. A movable arm is movably connected to the opening. One end of the movable arm extends to the inner side of the mounting groove, and the other end extends to the outside of the threaded connection head and is provided with a latch tooth. A force-bearing body is movably connected to the corresponding part of the side wall of the threaded connection head and the inner end of the movable arm. The outer side of the force-bearing body is an arc surface. The outer side thread of the threaded connection head is matched with a driving ring for extruding the force-bearing body. When the driving ring extrudes the force-bearing body, the force-bearing body can be displaced toward the inner side of the mounting groove to extrude the inner end of the movable arm, and then the movable arm rotates to cause the latch tooth to tilt.

[0008] Preferably, a mounting hole for mounting a threaded connection sleeve is provided on the steel sphere, and the threaded connection sleeve is fixedly connected to the inner cavity of the mounting hole, and a gap is left between the threaded connection sleeve and the end of the mounting hole.

[0009] Preferably, the secondary locking members are at least two groups and are evenly distributed;

[0010] The latching teeth are engaged with the edge of the inner end of the threaded connection sleeve.

[0011] Preferably, a partition is fixedly connected to the middle part of one side of the inner cavity of the installation groove close to the grid rod, and a first spring is arranged between one end of the partition and the end side wall of the movable arm, and the locking tooth does not protrude from the circumferential side wall of the threaded connector in the initial state of the first spring, and at this time, the inner end of the movable arm abuts against the inner end of the force-bearing body, and the outer end of the force-bearing body protrudes from the circumferential side wall of the threaded connector.

[0012] Preferably, it also includes a stabilizing component, which includes a cylinder movably connected to the middle part of one end of the threaded connector away from the grid rod, and an abutment column is movably connected to the inner side of the end of the cylinder away from the grid rod, and a second spring is arranged between the abutment column and the inner wall of the cylinder, and one end of the abutment column protrudes out of the cylinder in the initial state of the second spring.

[0013] Preferably, a driving rod corresponding to the inner end of the cylinder is provided on one side of the inner end of the movable arm, and the driving rod is used to squeeze and push the cylinder to move.

[0014] Preferably, the threaded connector is rotatably connected to the truss rod via a rotating member, the rotating member comprises a rotating block which is arranged at one end of the threaded connector close to the truss rod and has a diameter larger than the diameter of the threaded connector, the end of the truss rod close to the threaded connector is provided with a rotating groove which is adapted to the rotating block, and the rotating block is rotatably connected to the inner side of the rotating groove.

[0015] Preferably, the threaded connector is provided with two relatively distributed flat grooves on the circumferential side wall near one end of the grid rod, and the flat grooves are used for driving the wrench;

[0016] A pair of flat openings which are distributed opposite to each other are arranged on the outer side of the driving ring, and the flat openings are used for driving the wrench.

[0017] Compared with the prior art, the utility model provides a steel structure grid prefabricated component connection structure, which has the following beneficial effects:

[0018] 1. The connection structure of the prefabricated steel structure grid components is further reinforced after the grid rods and the steel spheres are threadedly connected by means of a secondary locking piece, thereby increasing the stability of the connection between the grid rods and the steel spheres and increasing safety. In addition, the threaded connector is rotatably connected to the grid rods, which facilitates the installation of the grid rods and the steel spheres.

[0019] 2. The steel structure grid prefabricated component connection structure can increase the stability between the threaded connection head and the threaded connection sleeve after installation by means of the abutment column, the cylinder, the second spring and the driving rod. Since there is always a reverse force, the possibility of loosening can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model in which the grid rods and the steel sphere are separated;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the steel sphere of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model in which the threaded connector and the grid rod are separated;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the threaded connector of the utility model.

[0025] In the figure: 1. steel sphere; 2. grid rod; 3. threaded connector; 4. threaded sleeve; 5. drive ring; 6. force-bearing body; 7. mounting hole; 8. movable arm; 9. flat groove; 10. flat mouth; 11. rotating block; 12. rotating groove; 13. latching tooth; 14. abutting column; 15. mounting groove; 16. slot; 17. pin shaft; 18. partition; 19. first spring; 20. drive rod; 21. cylinder; 22. second spring. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-5 As shown, the steel structure grid prefabricated component connection structure includes a steel sphere 1 and a grid rod 2, a threaded connection sleeve 4 is provided on the steel sphere 1, a mounting hole 7 for mounting the threaded connection sleeve 4 is provided on the steel sphere 1, and the threaded connection sleeve 4 is fixedly connected to the inner cavity of the mounting hole 7, and a gap is left between the threaded connection sleeve 4 and the end of the mounting hole 7, a threaded connection head 3 threadedly matched with the threaded connection sleeve 4 is provided at the end of the grid rod 2, and a secondary locking piece is provided on the threaded connection head 3, the secondary locking piece is at least two groups, and is evenly distributed, and the secondary locking piece includes a mounting groove 15 arranged at one end of the threaded connection head 3 away from the grid rod 2, and the mounting groove 15 is away from the grid rod 2 is provided with a slot 16, and the slot 16 is movably connected with a movable arm 8. One end of the movable arm 8 extends to the inside of the mounting slot 15, and the other end extends to the outside of the threaded connector 3 and is provided with a latch 13. The side wall of the threaded connector 3 and the corresponding part of the inner end of the movable arm 8 are movably connected with a force-bearing body 6. The outer side of the force-bearing body 6 is an arc surface, and the outer thread of the threaded connector 3 is matched with a driving ring 5 for squeezing the force-bearing body 6. When the driving ring 5 squeezes the force-bearing body 6, the force-bearing body 6 can be displaced toward the inside of the mounting slot 15 to squeeze the inner end of the movable arm 8, and then the movable arm 8 rotates to make the latch 13 tilt up, and the latch 13 is engaged with the edge of the inner end of the threaded connector sleeve 4.

[0028] Furthermore, in order to facilitate the resetting of the movable arm 8, a partition 18 is fixedly connected to the middle part of the inner cavity of the installation groove 15 close to the grid rod 2, and a first spring 19 is arranged between one end of the partition 18 and the end side wall of the movable arm 8, and in the initial state of the first spring 19, the latch tooth 13 does not protrude from the circumferential side wall of the threaded connector 3, and at this time, the inner end of the movable arm 8 abuts against the inner end of the force-bearing body 6, and the outer end of the force-bearing body 6 protrudes from the circumferential side wall of the threaded connector 3.

[0029] It also includes a stabilizing component, which includes a cylinder 21 movably connected to the middle part of one end of the threaded connector 3 away from the grid rod 2, and an abutment column 14 is movably connected to the inner side of the end of the cylinder 21 away from the grid rod 2, and a second spring 22 is arranged between the abutment column 14 and the inner wall of the cylinder 21, and one end of the abutment column 14 protrudes from the cylinder 21 in the initial state of the second spring 22, and a driving rod 20 corresponding to the inner end of the cylinder 21 is arranged on one side of the inner end of the movable arm 8, and the driving rod 20 is used to squeeze and push the cylinder 21 to move.

[0030] Furthermore, the threaded connector 3 is rotatably connected to the truss rod 2 via a rotating member, which includes a rotating block 11 which is arranged at one end of the threaded connector 3 close to the truss rod 2 and has a diameter larger than the diameter of the threaded connector 3; a rotating groove 12 which is adapted to the rotating block 11 is arranged at one end of the truss rod 2 close to the threaded connector 3, and the rotating block 11 is rotatably connected to the inner side of the rotating groove 12.

[0031] Two relatively distributed flat grooves 9 are arranged on the circumferential side wall of the threaded connector 3 near one end of the grid rod 2, and the flat grooves 9 are used to drive the wrench. A pair of relatively distributed flat openings 10 are arranged on the outer side of the drive ring 5, and the flat openings 10 are used to drive the wrench.

[0032] It should be noted that the utility model is a connection structure of prefabricated steel structure grid components. When in use, align the threaded connector 3 at the end of the grid rod 2 with the threaded connector sleeve 4, clamp the flat groove 9 with a wrench, and then screw one end of the threaded connector 3 into the threaded connector sleeve 4, and then clamp the flat mouth 10 on the drive ring 5 with a wrench, rotate the drive ring 5, and the drive ring 5 moves. The drive ring 5 gradually squeezes the force-bearing body 6, and then the force-bearing body 6 moves inward and squeezes the inner end of the movable arm 8. At the same time, the first spring 19 contracts, and the outer end of the movable arm 8 drives the latch tooth 13 to tilt up. The latching teeth 13 are clamped on the inner end edge of the threaded connection sleeve 4, and when the movable arm 8 rotates, it will drive the driving rod 20 to push the cylinder 21, and the cylinder 21 drives the abutment column 14 to move, so that one end of the abutment column 14 abuts against the inner wall of the mounting hole 7, and then the abutment column 14 remains stationary, and the second spring 22 contracts, and then the second spring 22 generates a reverse force acting on the abutment column 14, and the abutment column 14 pushes the inner wall of the mounting hole 7 tightly. Due to the reverse force that always exists, the possibility of loosening between the threaded connector 3 and the threaded connection sleeve 4 is reduced.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel structure grid prefabricated component connection structure, comprising a steel sphere (1) and a grid rod (2), wherein the steel sphere (1) is provided with a threaded connection sleeve (4), and the end of the grid rod (2) is provided with a threaded connection head (3) threadably matched with the threaded connection sleeve (4), characterized in that: The threaded connector (3) is provided with a secondary locking member, the secondary locking member comprising a mounting groove (15) provided at one end of the threaded connector (3) away from the grid rod (2), the mounting groove (15) is provided with a slot (16) at one end away from the grid rod (2), the slot (16) is movably connected with a movable arm (8), one end of the movable arm (8) extends to the inside of the mounting groove (15), and the other end extends to the outside of the threaded connector (3) and is provided with a latching tooth (13) A force-bearing body (6) is movably connected at the corresponding position of the side wall of the threaded connector (3) and the inner end of the movable arm (8), and the outer side of the force-bearing body (6) is an arc surface. The outer thread of the threaded connector (3) is matched with a driving ring (5) for squeezing the force-bearing body (6), so that when the driving ring (5) squeezes the force-bearing body (6), the force-bearing body (6) can be displaced toward the inner side of the installation groove (15) to squeeze the inner end of the movable arm (8), and then the movable arm (8) rotates to make the latching tooth (13) tilt up.

2. The steel structure grid prefabricated component connection structure according to claim 1 is characterized in that: The steel sphere (1) is provided with a mounting hole (7) for mounting a threaded connection sleeve (4), and the threaded connection sleeve (4) is fixedly connected to the inner cavity of the mounting hole (7), and a gap is left between the threaded connection sleeve (4) and the end of the mounting hole (7).

3. The steel structure grid prefabricated component connection structure according to claim 2 is characterized in that: The secondary locking members are at least two groups and are evenly distributed; The latching teeth (13) are in latching engagement with the edge of the inner end of the threaded connection sleeve (4).

4. The steel structure grid prefabricated component connection structure according to claim 2, characterized in that: A partition plate (18) is fixedly connected to the middle part of the inner cavity of the installation groove (15) near the grid rod (2), and a first spring (19) is arranged between one end of the partition plate (18) and the end side wall of the movable arm (8), and in the initial state of the first spring (19), the latching tooth (13) does not protrude from the circumferential side wall of the threaded connector (3), and at this time, the inner end of the movable arm (8) abuts against the inner end of the force-bearing body (6), and the outer end of the force-bearing body (6) protrudes from the circumferential side wall of the threaded connector (3).

5. The steel structure grid prefabricated component connection structure according to claim 4, characterized in that: It also includes a stabilizing component, which includes a cylinder (21) movably connected to the middle part of one end of the threaded connector (3) away from the grid rod (2), an abutment column (14) movably connected to the inner side of the end of the cylinder (21) away from the grid rod (2), a second spring (22) is arranged between the abutment column (14) and the inner wall of the cylinder (21), and in the initial state of the second spring (22), one end of the abutment column (14) protrudes from the cylinder (21).

6. The steel structure grid prefabricated component connection structure according to claim 5, characterized in that: A driving rod (20) corresponding to the inner end of the cylinder (21) is provided on one side of the inner end of the movable arm (8), and the driving rod (20) is used to squeeze and push the cylinder (21) to move.

7. The steel structure grid prefabricated component connection structure according to claim 6, characterized in that: The threaded connector (3) is rotatably connected to the grid rod (2) via a rotating member, wherein the rotating member comprises a rotating block (11) which is arranged at one end of the threaded connector (3) close to the grid rod (2) and has a diameter greater than the diameter of the threaded connector (3); a rotating groove (12) which is adapted to the rotating block (11) is arranged at one end of the grid rod (2) close to the threaded connector (3); and the rotating block (11) is rotatably connected to the inner side of the rotating groove (12).

8. The steel structure grid prefabricated component connection structure according to claim 7, characterized in that: The threaded connector (3) is provided with two flat grooves (9) arranged opposite to each other on the circumferential side wall near one end of the grid rod (2), and the flat grooves (9) are used for driving a wrench; A pair of flat openings (10) which are arranged opposite to each other are arranged on the outer side of the driving ring (5), and the flat openings (10) are used for driving a wrench.

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