Steel structure angle-adjustable self-locking connector and self-locking method thereof

Abstract

The invention discloses a steel structure angle-adjustable self-locking connector and a self-locking method thereof, and relates to the field of steel structure connectors, an articulated seat and an articulated member, wherein the articulated seat has two symmetrically distributed articulated plates, the articulated member is inserted between the two articulated plates, shaft cylinders are provided on both sides of the articulated member, the articulated member is rotatably connected to the articulated plate through the shaft cylinder, a circle of inner tooth surfaces are distributed on the circular mouth surface of the articulated plate, a number of radially sliding inner toothed members are annularly distributed on the surface of the shaft cylinder, and abutments are symmetrically arranged on both sides of the articulated member, a screw is threadedly connected to the articulated member and squeezes the abutment member toward the shaft cylinder, so that the abutment member squeezes the inner toothed member from the inner side of the shaft cylinder to diffuse and move outward, the inner toothed member is clamped with the inner toothed surface to lock the rotation angle of the articulated seat and the articulated member, the invention can adjust the connection angle of the steel structure through the rotation of the articulated member and the articulated plate, and through the axial tightening screw, the abutment member squeezes all the inner toothed members to expand and clamp the inner toothed surfaces synchronously, so as to realize the stable locking of the connection angle of the steel structure.

Description

Technical Field

[0001] The invention relates to the field of steel structure connectors, and in particular to an angle-adjustable self-locking connector for a steel structure and a self-locking method thereof. Background Art

[0002] The connection between steel structure frames is generally made by welding or bolting. Due to the complex distribution of steel structure frameworks and the large number of oblique support connection points, the connection of the inclined parts of the frame is difficult. If welding is used, the connection end of the frame needs to be accurately cut to the required inclination. If bolts are used, the bolt connection holes need to be accurately aligned in advance. Either way will increase the difficulty of oblique connection. If rotating connectors are used to assemble the inclined frame, the connection difficulty is greatly reduced, and it can better adapt to complex working conditions for adaptive adjustment.

[0003] Traditional rotating connectors use bolts as the hinge basis, and then lock the angle of the hinge point by tightening the bolts. This method can only provide axial clamping force and cannot stably lock the connection angle. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the purpose of the present invention is to provide a steel structure angle-adjustable self-locking connector and a self-locking method thereof, so as to solve the problem that the existing steel structure's rotating angle-adjusting connector is difficult to stably lock the connection angle.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows:

[0006] The steel structure angle-adjustable self-locking connector comprises an articulated seat and an articulated member, wherein the articulated seat has two symmetrically distributed articulated plates, the articulated member is inserted between the two articulated plates, and shaft cylinders are provided on both sides of the articulated member, the articulated member is rotatably connected to the articulated plates via the shaft cylinders, a circle of inner tooth surfaces are distributed on the circular mouth surface of the articulated plates, and a number of radially sliding inner toothed members are distributed in an annular manner on the surface of the shaft cylinder, and a resisting member is symmetrically arranged on both sides of the articulated member, a screw is threadedly connected to the articulated member and squeezes the resisting member toward the shaft cylinder, so that the resisting member squeezes the inner toothed member from the inner side of the shaft cylinder to diffuse and move outward, and the inner toothed member is engaged with the inner toothed surface to lock the rotation angle of the articulated seat and the articulated member.

[0007] Preferably, the abutment includes a side plate with a conical block at the center thereof, and the inner end of the inner tooth expansion member has an inclined block. The screw squeezes the side plate to insert the conical block into the shaft tube, and the surface of the conical block abuts against the inclined surface of the inclined block to cause the inner tooth expansion member to move radially outward.

[0008] Preferably, the surface of the conical block has a plurality of planar grooves, the inclined block is aligned and flat with the planar grooves one by one, so that the side plate and the shaft cylinder are locked at an angle, the end face of the shaft cylinder has a side tooth surface, and the surface of the side plate has a movable tooth surface aligned with the side tooth surface.

[0009] Preferably, the angle between the inclined block and the inclined surface of the planar slot is 45°.

[0010] Preferably, the abutment member comprises a plate seat, the edge of the plate seat is rotatably connected to the inner toothed member via a connecting rod, and a screw squeezes the plate seat to snap into the interior of the shaft tube, so that the connecting rod pushes the inner toothed member to slide radially outward.

[0011] Preferably, an axially extending movable cavity is opened at the center position of the hinge, a positioning ball is arranged in the movable cavity, a T-shaped piece is slidably arranged in the hinge, the T-shaped piece is slidably inserted into the movable cavity, the end of the T-shaped piece has a ball groove adapted to the positioning ball, two external tooth pieces are symmetrically distributed on both sides of the T-shaped piece, the outer cylindrical surface of the hinge plate has an external tooth surface, the external tooth piece is aligned with the external tooth surface, and the screw is inserted into the movable cavity to interfere with the positioning ball to be stuck in the ball groove.

[0012] Preferably, the T-shaped member slides elastically with the hinge member through a spring, so that the outer tooth member has a tendency to be stuck to the outer tooth surface.

[0013] A self-locking method based on the steel structure angle-adjustable self-locking connector comprises the following steps:

[0014] A. The hinge seat and the hinged member are respectively connected to the steel structure to be assembled, and the assembly angle of the steel structure is adjusted by rotating the hinged member and the hinged plate;

[0015] B. Tighten the screw and the hinge thread. The screw pushes the resistance piece toward the shaft tube. The resistance piece squeezes the inner gear piece obliquely from the inner side of the shaft tube and moves outward. The inner gear piece and the inner tooth surface are engaged to lock the angle between the hinge seat and the hinge.

[0016] Compared with the prior art, the advantages of the present invention are as follows:

[0017] 1. The present invention can adjust the connection angle of the steel structure by rotating the hinge and the hinge plate, and through the axial tightening screw, the abutment member squeezes all the internal toothed members to expand and engage the internal tooth surfaces synchronously, thereby achieving a stable locking of the connection angle of the steel structure.

[0018] 2. In the present invention, when the tightening screw pushes the resistance member to expand the internal tooth member, the movable tooth surface is engaged with the side tooth surface to provide a lateral holding force, thereby further improving the locking strength of the steel structure angle.

[0019] 3. In the present invention, when the tightening screw pushes the resistance member to expand the inner tooth member, the screw resists the positioning ball to be clamped into the ball groove, generating a pulling force on the T-shaped member, so that the outer tooth member and the outer tooth surface are clamped, forming an external clamping force to lock and reinforce the angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the overall embodiment 1 of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the hinged seat of the present invention.

[0022] Figure 3 It is a schematic diagram of the side plate alignment shaft cylinder structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the distribution structure of the internal expansion gear of the present invention.

[0024] Figure 5 It is a structural schematic diagram of a first embodiment of the resistance member of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the positioning ball positioning external gear member of the present invention.

[0026] Figure 7 It is a schematic diagram of the T-shaped piece structure of the present invention.

[0027] Figure 8 It is a schematic structural diagram of the overall embodiment 2 of the present invention.

[0028] Fig. 9 It is a structural schematic diagram of the second embodiment of the resistance member of the present invention.

[0029] Figure numerals: 1. hinge plate; 11. external tooth surface; 12. internal tooth surface; 13. side tooth surface; 2. hinged part; 21. movable cavity; 3. shaft cylinder; 31. radial slide groove; 4. internal expansion tooth part; 41. inclined block; 5. external tooth part; 51. T-shaped part; 52. ball groove; 6. side plate; 61. conical block; 62. plane slot; 63. movable tooth surface; 7. screw; 8. positioning ball; 9. plate seat; 91. connecting rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Embodiment 1: Figure 1-3 As shown, the steel structure angle-adjustable self-locking connector is composed of an articulated seat, an articulated member 2 and a locking component. The articulated seat has a base plate, and two articulated plates 1 are symmetrically welded and fixed on the surface of the base plate. The articulated plate 1 is semicircular as a whole, and the surface of the articulated plate 1 has a round mouth for articulated assembly. The articulated member 2 is T-shaped, and the plane end of the articulated member 2 has a channel steel for connecting the steel structure. The branch end of the articulated member 2 has a cylinder, and shaft cylinders 3 are symmetrically fixed on both sides of the cylinder. The cylinder of the articulated member 2 is inserted between the two articulated plates 1, and the shaft cylinders 3 on both sides are adapted to rotate with the round mouths of the articulated plates 1;

[0032] like Figure 2-5As shown, the locking component includes a resistance member, an inner tooth member 4, and a plurality of radial grooves 31 are annularly distributed around the outer end surface of the shaft cylinder 3. The outer opening of the radial groove 31 passes through the outer surface of the shaft cylinder 3, and the inner opening passes through the inner surface of the shaft cylinder 3. An inner tooth member 4 is slidably installed in each radial groove 31. The resistance member includes a circular side plate 6, and a conical block 61 is fixed at the center position of the surface of the side plate 6. The center positions of the side plate 6 and the conical block 61 have through holes. The outer end of the inner tooth member 4 is an arc-shaped tooth surface, and the inner end of the inner tooth member 4 has an inclined block 41. The circular surface of the hinge plate 1 is distributed with an inner tooth surface 12, and the screw 7 passes through the through hole from the outer side of the side plate 6 and is threadedly connected to the hinge member 2;

[0033] The base plate of the hinge seat is fixedly connected to the steel structure by bolts, and the steel structure that needs to be installed tilted is fixed to the channel steel of the hinge 2 by bolts. The connection angle of the steel structure is adjusted by rotating the hinge 2 and the hinge plate 1. After the angle is determined, use a wrench to tighten the screw 7. The screw 7 squeezes the side plate 6 toward the shaft tube 3, and the conical block 61 is inserted into the interior of the shaft tube 3. The surface of the conical block 61 conflicts with the inclined surface of the inclined block 41, pushing all the inner gear parts 4 to expand and slide radially outward synchronously, so that the tooth surface at the outer end of the inner gear part 4 is engaged with the inner tooth surface 12, and the rotation of the hinge 2 and the hinge plate 1 is locked to achieve the angle fixation of the steel structure.

[0034] like Figure 4-5 As shown, the surface of the conical block 61 is provided with a plurality of planar grooves 62, the inclined block 41 and the planar grooves 62 are aligned and flat one by one, and the optimal angle of the inclined surface of the inclined block 41 and the planar groove 62 is 45°, which not only improves the stability of the conical block 61 against the inclined block 41, but also the engagement between the inclined block 41 and the planar groove 62 can lock the angle of the side plate 6 and the shaft cylinder 3, the end surface of the shaft cylinder 3 has a side tooth surface 13, and the surface of the side plate 6 has a movable tooth surface 63 that is aligned with the side tooth surface 13. After the fastening screw 7 pushes the side plate 6 toward the shaft cylinder 3, the movable tooth surface 63 is engaged with the side tooth surface 13, thereby further improving the strength of the angle locking of the hinge 2 and the hinge plate 1.

[0035] like Figure 6-7 As shown, an axially extending active cavity 21 is provided at the center of the hinge 2, a positioning ball 8 is placed in the active cavity 21, and the diameter of the positioning ball 8 is adapted to the diameter of the active cavity 21, so that the positioning ball 8 can only move axially in the active cavity 21, a T-shaped piece 51 is radially slidably installed in the hinge 2, the T-shaped piece 51 is slidably inserted into the active cavity 21, the surface of the T-shaped piece 51 has a ball groove 52 adapted to the positioning ball 8, two external tooth pieces 5 are symmetrically distributed on both sides of the T-shaped piece 51, an external tooth surface 11 is provided on the outer cylindrical surface of the hinge plate 1, and the external tooth piece 5 is aligned with the external tooth surface 11;

[0036] The T-shaped member 51 slides elastically with the hinge 2 through the spring, so that the external tooth member 5 has a tendency to be clamped to the external tooth surface 11. In the process of rotating the hinge 2 to adjust the assembly angle of the steel structure, the elastic clamping of the external tooth member 5 and the external tooth surface 11 provides damping force for angle adjustment, which facilitates the positioning of the adjustment angle.

[0037] During the process of adjusting the angle of the steel structure, since the T-shaped piece 51 and the external tooth piece 5 are in an active state, the ball groove 52 is not aligned with the center of the active cavity 21, and the positioning ball 8 cannot be completely positioned in the ball groove 52, so that the positioning ball 8 is in an offset state. During the process of locking the angle with the fastening screws 7, the fastening screws 7 on both sides are inserted into the active cavity 21 to resist the positioning ball 8, so that the positioning ball 8 is adapted to be inserted into the ball groove 52, and a pulling force is generated on the T-shaped piece 51, so that the external tooth piece 5 is stably engaged with the external tooth surface 11, and the strength of locking the angle of the hinge 2 and the hinge plate 1 is further improved.

[0038] Embodiment 2: The difference from Embodiment 1 is that the abutment member has another implementation mode;

[0039] like Figure 8-9 As shown, the abutment includes a plate seat 9, the edge of the plate seat 9 is rotatably connected to the inner toothed member 4 via a connecting rod 91, and the fastening screw 7 squeezes the plate seat 9 into the interior of the shaft tube 3, so that the connecting rod 91 pushes the inner toothed member 4 to slide radially outward, thereby engaging the inner toothed member 4 with the inner tooth surface 12 to lock the connection angle.

[0040] In this embodiment, a plane that contacts the shaft cylinder 3 can also be provided on the outer side of the plate seat 9 to achieve the effect of locking the movable tooth surface 63 and the side tooth surface 13 as in the first embodiment.

[0041] The self-locking method of the steel structure angle-adjustable self-locking connector comprises the following steps:

[0042] A. The hinge seat and the hinge member 2 are respectively connected to the steel structure to be assembled, and the assembly angle of the steel structure is adjusted by rotating the hinge member 2 and the hinge plate 1;

[0043] B. Tighten the screw 7 and the hinge 2. The screw 7 pushes the resistance member in the direction of the shaft tube 3. The resistance member obliquely squeezes the inner toothed member 4 from the inner side of the shaft tube 3 and moves outward. The inner toothed member 4 is engaged with the inner tooth surface 12 to lock the angle between the hinge seat and the hinge 2.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Steel structure angle-adjustable self-locking connector, including: An articulated seat and an articulated component (2), wherein the articulated seat has two symmetrically distributed articulated plates (1), the articulated component (2) is inserted between the two articulated plates (1), and the articulated component (2) has shaft cylinders (3) on both sides, and the articulated component (2) is rotatably connected to the articulated plate (1) through the shaft cylinder (3), characterized in that a circle of inner tooth surfaces (12) are distributed on the circular mouth surface of the articulated plate (1), and a plurality of radially sliding inner toothed components (4) are distributed in an annular manner on the surface of the shaft cylinder (3), and a resisting component is symmetrically arranged on both sides of the articulated component (2), a screw (7) is threadedly connected to the articulated component (2) and presses the resisting component toward the shaft cylinder (3), so that the resisting component presses the inner toothed component (4) from the inner side of the shaft cylinder (3) to spread outward, and the inner toothed component (4) and the inner toothed surface (12) are engaged to lock the rotation angle of the articulated seat and the articulated component (2); The abutment member comprises a side plate (6), a conical block (61) is provided at the center of the side plate (6), an inner end of the inner toothed member (4) is provided with an inclined block (41), the screw (7) presses the side plate (6) so that the conical block (61) is inserted into the shaft cylinder (3), and the surface of the conical block (61) abuts against the inclined surface of the inclined block (41) so that the inner toothed member (4) moves radially outward; The surface of the conical block (61) has a plurality of plane grooves (62), and the inclined block (41) is aligned and flat with the plane grooves (62) one by one, so that the side plate (6) and the shaft cylinder (3) are locked at an angle, the end surface of the shaft cylinder (3) has a side tooth surface (13), and the surface of the side plate (6) has a movable tooth surface (63) aligned with the side tooth surface (13); An axially extending movable cavity (21) is provided at the center of the hinge (2), a positioning ball (8) is arranged in the movable cavity (21), a T-shaped piece (51) is slidably arranged in the hinge (2), the T-shaped piece (51) is slidably inserted into the movable cavity (21), an end of the T-shaped piece (51) has a ball groove (52) adapted to the positioning ball (8), two external tooth pieces (5) are symmetrically distributed on both sides of the T-shaped piece (51), the outer cylindrical surface of the hinge plate (1) has an external tooth surface (11), the external tooth piece (5) is aligned with the external tooth surface (11), and the screw (7) is inserted into the movable cavity (21) to abut against the positioning ball (8) and be inserted into the ball groove (52).

2. The steel structure angle-adjustable self-locking connector according to claim 1, characterized in that: The angle between the inclined surface of the inclined block (41) and the plane slot (62) is 45°.

3. The steel structure angle-adjustable self-locking connector according to claim 1, characterized in that: The abutment member comprises a plate seat (9), the edge of the plate seat (9) being rotatably connected to the inner toothed member (4) via a connecting rod (91), and the screw (7) pressing the plate seat (9) into the interior of the shaft cylinder (3) causes the connecting rod (91) to push the inner toothed member (4) to slide radially outward.

4. The steel structure angle-adjustable self-locking connector according to claim 1, characterized in that: The T-shaped member (51) slides elastically with the hinge member (2) via a spring, so that the outer tooth member (5) has a tendency to be clamped onto the outer tooth surface (11).

5. A self-locking method for a steel structure angle-adjustable self-locking connector according to any one of claims 1 to 4, characterized in that: The steps include: A. The hinge seat and the hinge member (2) are respectively connected to the steel structure to be assembled, and the assembly angle of the steel structure is adjusted by rotating the hinge member (2) and the hinge plate (1); B. Tighten the screw (7) and the hinge (2) threads, the screw (7) pushes the abutment member in the direction of the shaft tube (3), the abutment member is obliquely pressed by the inner side of the shaft tube (3) to spread outward, and the inner toothed member (4) and the inner toothed surface (12) are engaged to lock the angle between the hinge seat and the hinge (2).

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