Bidirectionally rotatable spherical joint node and construction method thereof

Abstract

The present invention discloses a bidirectionally rotatable ball joint and a construction method thereof. The ball joint comprises a first fixed plate (1), a first rotating member (2), a second fixed plate (3) and a second rotating member (4); one end of the first fixed plate (1) is fixedly connected to a steel structure (7), the first rotating member (2) is rotatably connected to the other end of the first fixed plate (1), a first chord rod (5) is connected to the first rotating member (2), so that the first chord rod (5) is rotatably connected to the steel structure (7); one end of the second fixed plate (3) is connected to the steel structure (7) and the first fixed plate (1), the second chord rod (6) is rotatably connected to the other end of the second fixed plate (3) through the second rotating member (4), so that the second chord rod (6) is rotatably connected to the steel structure (7). The present invention can solve the problem of poor adjustment flexibility during installation of horizontal connection supports in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a bidirectionally rotatable ball joint and a construction method thereof. Background Art

[0002] At present, in the installation and construction process of steel structures such as large-span space structures and super-high-rise structures, the most widely used is the temporary steel support system of lattice steel structures, including vertical steel supports and horizontal supports. For vertical steel support systems exceeding a certain height, there is an overall stability problem for a single lattice column. It is necessary to set up a certain number of horizontal connecting supports to connect the lattice columns into a whole, forming an overall lattice column steel support system, improving the lateral stiffness of the lattice columns, and thus ensuring the overall stability of the steel support system.

[0003] In actual engineering, since the distance and direction between two lattice column and other vertical steel structures can be random, the rods of the horizontal connecting support may need to be rotated at a certain angle to achieve a reliable connection with the vertical steel structure. Most of the horizontal connecting supports in the prior art are rigid connections, which cannot flexibly adapt to the connection support requirements of different distances and directions between two vertical steel structures. Therefore, it is necessary to provide a bidirectionally rotatable ball joint node and its construction method, which can solve the problem of poor adjustment flexibility during the installation of the horizontal connecting support in the prior art. Summary of the invention

[0004] The object of the present invention is to provide a bidirectionally rotatable ball joint node and a construction method thereof, which can solve the problem of poor adjustment flexibility during installation of horizontal connecting supports in the prior art.

[0005] The present invention is achieved in that:

[0006] A bidirectionally rotatable ball joint comprises a first fixed plate, a first rotating member, a second fixed plate and a second rotating member; one end of the first fixed plate is fixedly connected to a steel structure, the first rotating member is rotatably connected to the other end of the first fixed plate, and a first chord is connected to the first rotating member so that the first chord is rotatably connected to the steel structure; one end of the second fixed plate is connected to the steel structure and the first fixed plate, and the second chord is rotatably connected to the other end of the second fixed plate via the second rotating member so that the second chord is rotatably connected to the steel structure.

[0007] The first fixed plate includes two fixed unit plates, the two fixed unit plates are parallel to each other, one end of the two fixed unit plates are respectively connected to the steel structure, and the bottom of the two fixed unit plates are connected to the second fixed plate; the two fixed unit plates are symmetrically arranged on both sides of the first rotating member and the first chord rod and are rotatably connected to the first rotating member.

[0008] A rotating seat is formed at the end of the first chord rod, and the rotating seat is in a U-shaped structure. The first rotating member is embedded in the open end of the rotating seat, and the closed end of the rotating seat is fixedly connected to the end of the first chord rod.

[0009] The first rotating member is a spherical structure, and pin shafts are formed on both sides of the first rotating member, and the two pin shafts are arranged along the first radial direction of the first rotating member; pin shaft holes are formed at the other ends of the two fixed unit plates, so that the two pin shafts can be rotatably inserted into the pin shaft holes of the two fixed unit plates respectively; plug shafts are formed at both ends of the first rotating member, and the two plug shafts are arranged along the second radial direction of the first rotating member, and plug shaft holes are formed on both sides of the opening end of the rotating seat, so that the two plug shafts can be matched and inserted into the two plug shaft holes respectively.

[0010] The first radial direction is perpendicular to the second radial direction, the first radial direction is perpendicular to the fixed unit plate, and the second radial direction is parallel to the fixed unit plate, so that the first chord rod rotates in a plane parallel to the fixed unit plate through the first rotating member.

[0011] The steel structure is formed with two first plugging holes, which match the cross-section of the fixed unit plate, so that one end of the two fixed unit plates are plugged into the steel structure through the two first plugging holes respectively.

[0012] The end of the second chord is formed with an ear plate, and through holes are formed on the other end of the second fixed plate and the ear plate. The ear plate is fitted with the other end of the second fixed plate and the through holes overlap, and the ear plate and the second fixed plate are rotatably connected through the through hole by the second rotating member.

[0013] The second rotating member is a rotating shaft, the axial direction of which is perpendicular to the plane where the ear plate and the second fixed plate are located. The second fixed plate is vertically connected to the first fixed plate, so that the second chord rod rotates in a plane parallel to the second fixed plate and perpendicular to the first fixed plate.

[0014] A second plugging hole is formed on the steel structure, and the second plugging hole matches the cross section of the second fixing plate, so that one end of the second fixing plate can be plugged into the steel structure through the second plugging hole.

[0015] A construction method for a bidirectionally rotatable ball joint comprises the following steps:

[0016] Step 1: rotatably connecting the first fixed plate to the first rotating member;

[0017] Step 2: Connect the first chord to the first rotating member so that the first chord can rotate relative to the first fixed plate through the first rotating member;

[0018] Step 3: Connect the second fixing plate to the bottom of the first fixing plate;

[0019] Step 4: rotatably connecting the second chord rod to the second fixed plate via the second rotating member;

[0020] Step 5: Set a first plugging hole and a second plugging hole on the steel structure, so that the first fixing plate is plugged into the first plugging hole, and the second fixing plate is plugged into the second plugging hole.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Since the present invention is provided with a first rotating member and a second rotating member, the first chord can be rotatably adjusted by the first rotating member, and the second chord can be rotatably adjusted by the second rotating member, and the adjustment is flexible and simple. The bidirectional rotation of the first chord and the second rotating member can better realize the horizontal connection support between two vertical steel structures such as lattice columns, and meet the horizontal support connection requirements of various forms of steel structures.

[0023] 2. The present invention is provided with a first mounting plate and a second mounting plate, and the whole is installed by plugging and the like, so as to form a fully assembled node, without on-site installation, and convenient disassembly and assembly. It can improve the construction efficiency and construction accuracy while ensuring the structural strength of the steel structure node, and can be recycled after disassembly, thus ensuring the utilization efficiency of the horizontal support at the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the bidirectionally rotatable ball joint of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection between the first fixed plate and the first rotating member in the bidirectionally rotatable spherical joint of the present invention;

[0026] Figure 3 It is a three-dimensional diagram of the first chord in the bidirectionally rotatable spherical joint of the present invention;

[0027] Figure 4 It is a schematic diagram of the connection between the first chord, the first fixed plate and the first rotating member in the bidirectionally rotatable spherical joint of the present invention;

[0028] Figure 5 The invention discloses a schematic diagram of the installation of a first chord rod and a second chord rod in a spherical joint capable of bidirectional rotation.

[0029] In the figure, 1 is the first fixed plate, 2 is the first rotating member, 201 is the pin shaft, 202 is the plug shaft, 3 is the second fixed plate, 4 is the second rotating member, 5 is the first chord rod, 501 is the rotating seat, 6 is the second chord rod, and 7 is the steel structure. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Please see attached Figure 1, Attachment Figure 2 and attached Figure 5 A bidirectionally rotatable ball joint node comprises a first fixed plate 1, a first rotating member 2, a second fixed plate 3 and a second rotating member 4; one end of the first fixed plate 1 is fixedly connected to a steel structure 7, the first rotating member 2 is rotatably connected to the other end of the first fixed plate 1, a first chord 5 is connected to the first rotating member 2, so that the first chord 5 is rotatably connected to the steel structure 7; one end of the second fixed plate 3 is connected to the steel structure 7 and the first fixed plate 1, and the second chord 6 is rotatably connected to the other end of the second fixed plate 3 through the second rotating member 4, so that the second chord 6 is rotatably connected to the steel structure 7.

[0032] The first fixed plate 1 and the first rotating member 2 are used to connect the first chord 5 with the steel structure 7, and the first chord 5 is rotated by the first rotating member 2; the second fixed plate 3 and the second rotating member 4 are used to connect the second chord 6 with the steel structure 7, and the second chord 6 is rotated by the second rotating member 4. The first chord 5 and the second chord 6 have different rotation directions, and the installation angles of the first fixed plate 1 and the second fixed plate 3 on the steel structure 7 can be adjusted according to actual installation requirements, so as to flexibly adjust the rotation directions of the first chord 5 and the second chord 6 to meet the horizontal support connection requirements between two vertical steel structures such as lattice columns.

[0033] Please see attached Figure 1 The first fixed plate 1 includes two fixed unit plates, the two fixed unit plates are parallel to each other, one end of the two fixed unit plates are respectively connected to the steel structure 7, and the bottom of the two fixed unit plates are connected to the second fixed plate 3; the two fixed unit plates are symmetrically arranged on both sides of the first rotating member 2 and the first chord 5 and are rotatably connected to the first rotating member 2.

[0034] The two fixed unit plates facilitate the installation of the first rotating member 2, ensuring the flexible rotation of the first rotating member 2 and preventing it from falling off. At the same time, the two fixed unit plates can limit the first chord 5, ensuring the rotation stability of the first chord 5 between the two fixed unit plates.

[0035] Please see attached Figure 3 and attached Figure 4 The end of the first chord rod 5 is formed with a rotating seat 501, and the rotating seat 501 is a U-shaped structure. The first rotating member 2 is embedded in the open end of the rotating seat 501, and the closed end of the rotating seat 501 is fixedly connected to the end of the first chord rod 5.

[0036] The U-shaped rotating seat 501 wraps the first rotating member 2 in three directions, thereby ensuring the reliability of the connection between the first rotating member 2 and the first chord 5 and ensuring that the first chord 5 can be flexibly rotated through the first rotating member 2.

[0037] Please see attached Figure 2 To Attachment Figure 4 The first rotating member 2 is a spherical structure, and pins 201 are formed on both sides of the first rotating member 2, and the two pins 201 are arranged along the first radial direction of the first rotating member 2; pin holes (not shown in the figure) are formed at the other ends of the two fixed unit plates, so that the two pins 201 can be rotatably inserted into the pin holes of the two fixed unit plates respectively; plug shafts 202 are formed at both ends of the first rotating member 2, and the two plug shafts 202 are arranged along the second radial direction of the first rotating member 2, and plug shaft holes (not shown in the figure) are formed on both sides of the opening end of the rotating seat 501, so that the two plug shafts 202 are matched and inserted into the two plug shaft holes respectively.

[0038] The first rotating member 2 is installed through two pins 201 and rotates relative to the two fixed unit plates to ensure the rotation adjustment function of the first chord 5. At the same time, the first rotating member 2 is installed through two plug shafts 202 and fixed relative to the first chord 5 to ensure the reliable installation of the first chord 5. The two pins 201 and the two plug shafts 202 are located in different radial directions to prevent the first chord 5 from colliding with the fixed unit plates when rotating.

[0039] The first radial direction is perpendicular to the second radial direction, the first radial direction is perpendicular to the fixed unit plate, and the second radial direction is parallel to the fixed unit plate, so that the first chord 5 is rotated in a plane parallel to the fixed unit plate through the first rotating member 2, so that the first chord 5 is reliably limited by the two fixed unit plates, ensuring the stability of the first chord 5 during rotation, and effectively preventing the first chord 5 from being deviated and colliding with the fixed unit plate.

[0040] Please see attached Figure 1 Two first plugging holes (not shown in the figure) are formed on the steel structure 7, and the first plugging holes match the cross-section of the fixed unit plate, so that one end of the two fixed unit plates are respectively plugged into the steel structure 7 through the two first plugging holes.

[0041] The two fixed unit boards are positioned and plugged in through the first plug-in holes, so that the positioning installation is faster and simpler, and the disassembly is also more convenient.

[0042] Please see attached Figure 1 and attached Figure 5 The end of the second chord rod 6 is formed with an ear plate (not shown in the figure), and the other end of the second fixed plate 3 and the ear plate are both formed with through holes (not shown in the figure), the ear plate is fitted with the other end of the second fixed plate 3 and the through holes overlap, and the ear plate and the second fixed plate 3 are rotatably connected through the second rotating member 4 through the through hole.

[0043] The two ends of the second rotating member 4 can be limited by structures such as flanges and nuts to ensure that the second rotating member 4 is connected through the ear plate and the other end of the second fixed plate 3, thereby ensuring that the ear plate and the second chord rod 6 can rotate reliably relative to the second fixed plate 3, and the rotating surface of the second chord rod 6 is parallel to the second fixed plate 3, realizing the two-way rotation adjustment function of the first chord rod 5 and the second chord rod 6, and meeting the connection requirements of various forms of vertical steel structures.

[0044] The second rotating member 4 is a rotating shaft, the axial direction of the rotating shaft is perpendicular to the plane where the ear plate and the second fixed plate 3 are located, and the second fixed plate 3 is vertically connected to the two fixed unit plates of the first fixed plate 1, so that the second chord rod 6 is located in a plane parallel to the second fixed plate 3 and perpendicular to the first fixed plate 1 and rotates, ensuring the rotation stability of the second chord rod 6 and the controllability of the rotation trajectory.

[0045] Please see attached Figure 1 and attached Figure 5 A second plug hole (not shown in the figure) is formed on the steel structure 7, and the second plug hole matches the cross-section of the second fixing plate 3, so that one end of the second fixing plate 3 can be plugged into the steel structure 7 through the second plug hole.

[0046] The second fixing plate 3 is positioned and plugged in through the second plugging hole, so that the positioning installation is faster and simpler, and the disassembly is also more convenient.

[0047] Please see attached Figure 1 To Attachment Figure 5 , a construction method of a bidirectionally rotatable ball joint node, comprising the following steps:

[0048] Step 1: rotatably connect the first fixed plate 1 and the first rotating member 2.

[0049] The step 1 comprises the following sub-steps:

[0050] Step 1.1: Process the steel ingot into a spherical structure on a CNC machine tool as the first rotating member 2, and cylindrical pins 201 extend from both sides of the first rotating member 2, and cylindrical plug shafts 202 extend from both ends of the first rotating member 2.

[0051] The first rotating member 2, the two pin shafts 201 and the two insertion shafts 202 are integrally formed, so that the structural strength of the ball joint is high.

[0052] Step 1.2: Open pin holes matching the pins 201 on the two fixed unit plates of the first fixed plate 1, so that the two fixed unit plates are symmetrically arranged on both sides of the first rotating member 2, and the two pins 201 are inserted into the pin holes of the two fixed unit plates. The first rotating member 2 can rotate relative to the two fixed unit plates through the two pins 201.

[0053] The first rotating member 2 can be quickly installed and flexibly rotated by plugging the pin shaft 201 into the pin shaft hole, which is easy to construct.

[0054] Step 2: Connect the first chord rod 5 to the first rotating member 2 so that the first chord rod 5 can rotate relative to the first fixed plate 1 through the first rotating member 2 .

[0055] Specifically, the rotating seat 501 of the first chord rod 5 is sleeved on the first rotating member 2 and located between the two fixed unit plates of the first fixed plate 1, so that the two plug-in shafts 202 of the first rotating member 2 are respectively inserted into the plug-in shaft holes on both sides of the open end of the rotating seat 501, so that the first chord rod 5 can rotate between the two fixed unit plates through the first rotating member 2.

[0056] The first chord rod 5 can be quickly installed and flexibly rotated by plugging the plug shaft 202 into the plug shaft hole of the rotating seat 501, which is easy to construct.

[0057] Step 3: Connect the second fixing plate 3 to the bottom of the first fixing plate 1.

[0058] Specifically, the second fixing plate 3 is vertically fixedly connected to the bottoms of the two fixing unit plates of the first fixing plate 1 .

[0059] Preferably, the second fixing plate 3 and the two fixing unit plates can be fixedly connected by welding or the like, or can be integrally formed.

[0060] Step 4: Rotatably connect the second chord rod 6 to the second fixed plate 3 via the second rotating member 4 .

[0061] The step 4 comprises the following sub-steps:

[0062] Step 4.1: Fit the ear plate of the second chord rod 6 to the other end of the second fixing plate 3 so that the through hole of the ear plate and the other end of the second fixing plate 3 overlap.

[0063] Step 4.2: The second rotating member 4 is rotatably passed through the connecting ear plate and the other end of the second fixed plate 3 through the through hole, so that the second chord rod 6 rotates relative to the second fixed plate 3 through the second rotating member 4 .

[0064] The second rotating member 4 is quickly plugged in by utilizing the alignment of the through holes, thereby realizing flexible rotation of the second chord rod 6 through the second rotating member 4, which is easy to construct and has high construction efficiency.

[0065] Step 5: A first plugging hole and a second plugging hole are set on the steel structure 7, so that the first fixing plate 1 is plugged into the first plugging hole, and the second fixing plate 3 is plugged into the second plugging hole.

[0066] Preferably, the connection parts among the first fixing plate 1, the second fixing plate 3 and the steel structure 7 can be reinforced by means of screw connection or the like to ensure that the connection nodes are firm and reliable.

[0067] The horizontal support connection between two lattice columns and other vertical steel structures is realized by the first chord 5 and the second chord 6. When the horizontal support length is adjusted, the angles of the first chord 5 and the second chord 6 can be flexibly rotated to meet the horizontal support requirements. The connections between the first fixed plate 1, the first rotating member 2, the second fixed plate 3, the second rotating member 4, the first chord 5 and the second chord 6 are all assembled by plug-in and other methods. The fully assembled node is easy to disassemble and assemble, which is conducive to improving the construction speed, construction accuracy and structural safety. It can be recycled after disassembly, ensuring the use efficiency of the horizontal support at the construction site.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the invention. Therefore, any modifications, equivalent substitutions, 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. A bidirectionally rotatable ball joint, characterized by: The invention comprises a first fixed plate (1), a first rotating member (2), a second fixed plate (3) and a second rotating member (4); one end of the first fixed plate (1) is fixedly connected to the steel structure (7), the first rotating member (2) is rotatably connected to the other end of the first fixed plate (1), a first chord rod (5) is connected to the first rotating member (2), so that the first chord rod (5) is rotatably connected to the steel structure (7); one end of the second fixed plate (3) is connected to the steel structure (7) and the first fixed plate (1), the second chord rod (6) is rotatably connected to the other end of the second fixed plate (3) through the second rotating member (4), so that the second chord rod (6) is rotatably connected to the steel structure (7); the first fixed plate (1) comprises two fixed unit plates, the two fixed unit plates are parallel to each other, one end of the two fixed unit plates is respectively connected to the steel structure (7), and the bottom of the two fixed unit plates is connected to the second fixed plate (3); the two fixed unit plates are symmetrically arranged on the first rotating member (2) and the first chord rod (5) The first chord (5) is rotatably connected to both sides of the first rotating member (2); a rotating seat (501) is formed at the end of the first chord (5); the rotating seat (501) is in a U-shaped structure; the first rotating member (2) is embedded in the open end of the rotating seat (501); the closed end of the rotating seat (501) is fixedly connected to the end of the first chord (5); the first rotating member (2) is in a spherical structure; pins (201) are formed on both sides of the first rotating member (2); the two pins (201) are arranged along The first rotating member (2) is arranged in a first radial direction; the other ends of the two fixed unit plates are respectively formed with pin holes, so that the two pins (201) can be rotatably inserted into the pin holes of the two fixed unit plates; both ends of the first rotating member (2) are formed with insertion shafts (202), the two insertion shafts (202) are arranged along the second radial direction of the first rotating member (2), and both sides of the open end of the rotating seat (501) are formed with insertion shaft holes, so that the two insertion shafts (202) can be matched and inserted into the two insertion shaft holes.

2. The bidirectionally rotatable ball joint according to claim 1 is characterized in that: The first radial direction is perpendicular to the second radial direction, the first radial direction is perpendicular to the fixed unit plate, and the second radial direction is parallel to the fixed unit plate, so that the first chord rod (5) rotates in a plane parallel to the fixed unit plate through the first rotating member (2).

3. The bidirectionally rotatable ball joint according to claim 1 is characterized in that: The steel structure (7) is formed with two first plugging holes, which match the cross-section of the fixed unit plate, so that one end of the two fixed unit plates are plugged into the steel structure (7) through the two first plugging holes respectively.

4. The bidirectionally rotatable ball joint according to claim 1 is characterized in that: The end of the second chord rod (6) is formed with an ear plate, and the other end of the second fixing plate (3) and the ear plate are both formed with through holes, the ear plate is fitted with the other end of the second fixing plate (3) and the through holes overlap, and the ear plate and the second fixing plate (3) are rotatably connected through the through holes via the second rotating member (4).

5. The bidirectionally rotatable ball joint according to claim 4 is characterized in that: The second rotating member (4) is a rotating shaft, the axial direction of which is perpendicular to the plane where the ear plate and the second fixed plate (3) are located, and the second fixed plate (3) is vertically connected to the first fixed plate (1), so that the second chord (6) is located and rotates in a plane parallel to the second fixed plate (3) and perpendicular to the first fixed plate (1).

6. The bidirectionally rotatable ball joint according to claim 1 is characterized in that: A second plugging hole is formed on the steel structure (7), and the second plugging hole matches the cross section of the second fixing plate (3), so that one end of the second fixing plate (3) can be plugged into the steel structure (7) through the second plugging hole.

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