A building structure connection node

Abstract

The present invention relates to the technical field of general building structures, and particularly to a building structure connection node, which includes a hollow sphere, a regular hexagonal sleeve and web members. A first threaded channel is provided inside the hollow sphere, and both ends of the first threaded channel penetrate out of the hollow sphere. A second threaded channel is also provided inside the hollow sphere, and both ends of the second threaded channel are through. The diameters of the first threaded channel and the second threaded channel are the same. In the present invention, a regular hexagonal sleeve is provided. When installing the web members, since the conical tooth surfaces of the regular hexagonal sleeves whose axes are perpendicular to each other in the first plane mesh with each other, rotating any one of the regular hexagonal sleeves can cause the four regular hexagonal sleeves to rotate synchronously in the circumferential direction, so that the four regular hexagonal sleeves drive the corresponding bolts to rotate in the circumferential direction. Compared with the form in the prior art where the web members are assembled and connected to the hollow sphere one by one, it is more labor-saving and convenient, can greatly save the working time of the staff, and improve the installation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of general building structures, and particularly to a building structure connection node. Background Art

[0002] A spherical connection node is a structural component specifically designed in a building structure for multi-directional connection, which allows rods to freely rotate and move in multiple directions. This type of node is widely used in space structures that require flexible connection of various angled rods, such as grid structures, domes, and other complex steel structure buildings. The main structure of the existing spherical connection node includes a hollow sphere and a connecting piece. The hollow sphere is the core component of the spherical connection node, usually made of high-strength steel or other corrosion-resistant materials. The connecting piece is usually a regular hexagonal sleeve, which is rotatably arranged outside the hollow sphere and is used to connect the web member or chord member to the hollow sphere.

[0003] During specific connection, the staff needs to first hook out the bolts at both ends of the chord member or web member, then make the waist grooves on the outer periphery of the bolts correspond to the positioning holes opened on the regular hexagonal sleeve, then thread the set screw into the positioning hole and make the bottom of the set screw slide and abut against the bottom of the waist groove, then make the bolt abut against the threaded hole in the hollow sphere, and finally rotate the regular hexagonal sleeve. At this time, the regular hexagonal sleeve drives the bolt to rotate synchronously through the set screw. Under the action of the thread fit between the bolt and the threaded hole, the bolt gradually screws into the inside of the hollow sphere so that the web member or chord member abuts tightly against the regular hexagonal sleeve, and the installation is completed at this time. However, the existing hollow sphere nodes have the following problems during installation: Rotating one regular hexagonal sleeve can only make the bolts corresponding to one web member or chord member screw into the hollow sphere, and usually multiple web members or chord members need to be connected to one hollow sphere. Therefore, the operation during installation is relatively cumbersome. Summary of the Invention

[0004] Based on this, in view of the problems existing in the installation of the current hollow sphere nodes, it is necessary to provide a building structure connection node to solve the problem that the operation is relatively cumbersome when the existing hollow sphere nodes are installed and connected to the web members and chord members.

[0005] The above object is achieved by the following technical solutions:

[0006] A building structure connection node includes:

[0007] A hollow sphere, in which a first threaded channel is opened, both ends of the first threaded channel penetrate out of the hollow sphere, a second threaded channel is also opened in the hollow sphere, both ends of the second threaded channel penetrate out of the hollow sphere, the diameters of the first threaded channel and the second threaded channel are the same, and the axis of the first threaded channel and the axis of the second threaded channel are perpendicular to each other in a first plane;

[0008] Regular hexagonal sleeves, there are multiple regular hexagonal sleeves, and multiple regular hexagonal sleeves are all rotatably arranged on the hollow sphere and correspond to both ends of the first threaded channel and the second threaded channel one by one. Moreover, the regular hexagonal sleeves are coaxial with the corresponding first threaded channel and the corresponding second threaded channel and are located outside the corresponding first threaded channel and the corresponding second threaded channel. A bevel gear surface is provided on the end face of the end of the regular hexagonal sleeve, and the bevel gear surfaces of the regular hexagonal sleeves whose axes are perpendicular to each other in the first plane mesh with each other;

[0009] Web members, bolts are sleeved at both ends thereof, and the bolts are in threaded fit with the corresponding first threaded channel and the corresponding second threaded channel. The bolts and the regular hexagonal sleeves can rotate synchronously around the axis of the bolts and slide relative to each other along the axis of the bolts.

[0010] Preferably, a one-way limiting component is provided at one end of the regular hexagonal sleeve away from the hollow sphere. The one-way limiting component is used to limit the bolt from moving along its axis in the direction away from the hollow sphere after the bolt is in threaded fit with the corresponding first threaded channel and the second threaded channel.

[0011] Preferably, the one-way limiting component includes a limiting pin and a first elastic member. The limiting pin is slidably arranged in the regular hexagonal sleeve, and the axis of the limiting pin is arranged at an angle with the axis of the regular hexagonal sleeve. The first elastic member is arranged in the regular hexagonal sleeve and is connected between the limiting pin and the regular hexagonal sleeve. The first elastic member is used to make one end of the limiting pin extend out of the regular hexagonal sleeve;

[0012] A number of limiting ring grooves are provided in the outer part of the bolt and away from its end. The number of limiting ring grooves is arranged at equal intervals along the axis of the bolt. The number of limiting ring grooves is arranged at equal intervals along the axis of the bolt.

[0013] Preferably, the diameter of the bolt section where the limiting ring groove is located is slightly larger than the diameter of the bolt section where the thread is located.

[0014] Preferably, the thread directions at both ends of the first threaded channel are opposite, and the thread directions at both ends of the second threaded channel are also opposite.

[0015] Preferably, the two end ports of the first threaded channel are taper threads.

[0016] Preferably, a building structure connection node further includes a third threaded channel. The third threaded channel is arranged inside the hollow sphere. The third threaded channel has the same diameter as the first threaded channel and the second threaded channel, and does not intersect with the first threaded channel and the second threaded channel.

[0017] Preferably, threaded positioning holes are provided on the outer part of the regular hexagonal sleeve. A first waist groove is provided on the outer circumference of the bolt. The diameter of the first waist groove is adapted to the diameter of the threaded positioning hole. A setscrew is threadedly connected in the threaded positioning hole, and the bottom of the setscrew is in sliding contact with the bottom of the first waist groove.

[0018] Preferably, the hollow sphere includes a first hemispherical shell, a second hemispherical shell and a central screw rod. The first hemispherical shell and the second hemispherical shell are buckled with each other, and threaded connection holes coaxial with each other are formed in the first hemispherical shell and the second hemispherical shell. The central screw rod is threadedly connected to the threaded connection holes corresponding to the first hemispherical shell and the second hemispherical shell respectively.

[0019] Preferably, a first cavity is jointly formed in the first hemispherical shell and the second hemispherical shell. The first cavity is cross-shaped. A cross-shaped sleeve is arranged in the first cavity. A part of the cross-shaped sleeve extends along a first axis, and another part of the cross-shaped sleeve extends along a second axis. The first axis and the second axis are perpendicular to each other in a first plane. A first threaded channel is formed inside the cross-shaped sleeve and is coaxial with the first axis. A second threaded channel is formed inside the cross-shaped sleeve and is coaxial with the second axis.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention is provided with regular hexagonal sleeves. When installing the web members, since the tapered tooth surfaces of the regular hexagonal sleeves whose axes are perpendicular to each other in the first plane are meshed with each other, rotating any one of the regular hexagonal sleeves can make the four regular hexagonal sleeves rotate synchronously in the circumferential direction. Thus, the four regular hexagonal sleeves drive the corresponding bolts to rotate in the circumferential direction. At this time, under the action of the threaded engagement between the bolts and the corresponding first threaded channels and second threaded channels, the bolts gradually move to the preset positions inside the first threaded channels and the second threaded channels. At this time, the four web members are all abutted against the outer end surfaces of the regular hexagonal sleeves, and the assembly connection between one ends of the four web members and the hollow sphere is completed simultaneously. Compared with the form of assembling and connecting the web members and the hollow sphere one by one in the prior art, it is more labor-saving and convenient, can greatly save the working time of the staff, and improve the installation efficiency. Description of the Drawings

[0022] Figure 1 is an overall schematic diagram of a building structure connection node of the present invention;

[0023] Figure 2 is a top view of a building structure connection node of the present invention;

[0024] Figure 3 is Figure 2 the sectional view taken along line A-A in

[0025] Figure 4 is Figure 3 the enlarged schematic diagram of the structure at B in

[0026] Figure 5 is Figure 3 the enlarged schematic diagram of the structure at D in

[0027] Figure 6Schematic diagram of an embodiment of a connection node of a building structure according to the present invention;

[0028] Figure 7 Side view of a connection node of a building structure according to the present invention;

[0029] Figure 8 For Figure 7 Cross-sectional view taken along line C-C in;

[0030] Figure 9 Exploded view of a regular hexagonal sleeve and a bolt in a connection node of a building structure according to the present invention;

[0031] Figure 10 Schematic diagram of the assembled state of a connection node of a building structure according to the present invention.

[0032] Wherein:

[0033] 100, hollow sphere; 101, first hemispherical body; 102, second hemispherical body; 103, central screw; 110, first threaded channel; 120, second threaded channel; 130, first cavity; 140, cross-shaped sleeve;

[0034] 200, regular hexagonal sleeve; 210, tapered tooth surface; 220, threaded positioning hole; 230, setscrew;

[0035] 300, web member; 310, bolt; 311, limit ring groove; 312, first waist groove;

[0036] 400, one-way limiting component; 410, limiting pin; 420, first elastic member;

[0037] 500, chord member. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The serial numbers assigned to components in this text itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "coupling" as used in the present invention, unless otherwise specifically stated, both include direct and indirect connection (coupling). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0041] Such as Figures 1 to 10As shown in the figure, a building structure connection node includes a hollow sphere 100, a regular hexagonal sleeve 200, and a web member 300. A first threaded channel 110 is provided inside the hollow sphere 100. Both ends of the first threaded channel 110 penetrate out of the hollow sphere 100. A second threaded channel 120 is also provided inside the hollow sphere 100. Both ends of the second threaded channel 120 are through. The first threaded channel 110 and the second threaded channel 120 have the same diameter, and the axis of the first threaded channel 110 and the axis of the second threaded channel 120 are perpendicular to each other in a first plane. There are multiple regular hexagonal sleeves 200, and multiple regular hexagonal sleeves 200 are all rotatably arranged on the hollow sphere 100. Specifically, there are four regular hexagonal sleeves 200, and the four regular hexagonal sleeves 200 correspond to both ends of the first threaded channel 110 and the second threaded channel 120 one by one. The regular hexagonal sleeve 200 is coaxial with the corresponding first threaded channel 110 and the corresponding second threaded channel 120 and is located outside the corresponding first threaded channel 110 and the corresponding second threaded channel 120. A bevel gear surface 210 is provided on the end face of the end of the regular hexagonal sleeve 200. The bevel gear surfaces 210 of the regular hexagonal sleeves 200 whose axes are perpendicular to each other in the first plane are engaged with each other. Bolts 310 are sleeved at both ends of the web member 300. The bolts 310 are in threaded cooperation with both the first threaded channel 110 and the second threaded channel 120. The bolts 310 and the regular hexagonal sleeves 200 can rotate synchronously around the axis of the bolts 310 and slide relative to each other along the axis of the bolts 310.

[0042] When the hollow sphere 100 and the web members 300 need to be assembled, the staff first insert the bolts 310 corresponding to one end of the two web members 300 into both ends of the first threaded channel 110 respectively, so that the ends of the bolts 310 corresponding to the two web members 300 are in threaded engagement with both ends of the first threaded channel 110. Specifically, it is necessary to make the ends of the bolts 310 abut against the inner parts of both ends of the first threaded channel 110, so that the bolts 310 can move into the first threaded channel 110 when rotating circumferentially. Next, the staff take another two web members 300 and insert the bolts 310 corresponding to one end of these two web members 300 into both ends of the second threaded channel 120 respectively, so that the ends of the bolts 310 corresponding to the two web members 300 are in threaded engagement with both ends of the second threaded channel 120. Next, the staff rotate any one of the regular hexagonal sleeves 200. At this time, since the conical tooth surfaces 210 of the regular hexagonal sleeves 200 whose axes are perpendicular to each other in the first plane are engaged with each other, rotating any one of the regular hexagonal sleeves 200 can make the four regular hexagonal sleeves 200 rotate synchronously circumferentially. After the four regular hexagonal sleeves 200 rotate circumferentially, since the bolts 310 and the regular hexagonal sleeves 200 can rotate synchronously around the axes of the bolts 310 and slide relative to each other along the axes of the bolts 310, and since the ends of the bolts 310 are in threaded engagement with the first threaded channel 110 and the second threaded channel 120 at this time, with the circumferential rotation of the bolts 310, the bolts 310 rotate and gradually move into the first threaded channel 110 and the second threaded channel 120. At this time, the bolts 310 pull the regular hexagonal sleeves 200 to move synchronously towards the direction close to the hollow sphere 100 through their bolt heads. When the bolts 310 move to the preset positions inside the first threaded channel 110 and the second threaded channel 120, one ends of the four web members 300 are all in contact with the outer end surfaces of the regular hexagonal sleeves 200. At this time, the assembly connection between one ends of the four web members 300 and the hollow sphere 100 is completed simultaneously. Compared with the form of assembling and connecting the web members 300 and the hollow sphere 100 one by one in the prior art, it is more labor-saving and convenient, can greatly save the operation time of the staff, and improve the installation efficiency.

[0043] It should also be supplemented that, in order to enable the bolts 310 and the regular hexagonal sleeves 200 to rotate synchronously around the axes of the bolts 310 and slide relative to each other along the axes of the bolts 310, as Figure 9 shown, threaded positioning holes 220 are formed on the outer parts of the regular hexagonal sleeves, first waist grooves 312 are formed on the outer circumferences of the bolts 310, the diameters of the first waist grooves 312 are adapted to the diameters of the threaded positioning holes 220, setscrews 230 are connected to the threaded positioning holes 220 by threads, and the bottoms of the setscrews 230 are in sliding contact with the bottoms of the first waist grooves 312.

[0044] After the bolt 310 is inserted into the central hole of the regular hexagonal sleeve 200 and the end of the bolt 310 is threadedly engaged with the first threaded channel 110 or the second threaded channel 120, the operator screws the set screw 230 into the threaded positioning hole 220 and makes the bottom of the set screw 230 slidably abut against the bottom of the first waist-shaped groove 312. At this time, under the driving action of the set screw 230, the regular hexagonal sleeve 200 can drive the bolt 310 to rotate synchronously, and under the guiding action of the first waist-shaped groove 312, the bolt 310 can also slide relative to the regular hexagonal sleeve 200 along its axis.

[0045] In this embodiment, as Figure 4 , Figure 8 and Figure 9 shown, a one-way limiting component 400 is provided at one end of the regular hexagonal sleeve 200 away from the hollow ball 100. The one-way limiting component 400 is used to limit the bolt 310 from moving along its axis away from the first threaded channel 110 or the second threaded channel 120 after the bolt 310 is threadedly engaged with the corresponding first threaded channel 110 and the second threaded channel 120.

[0046] It can be understood that when the operator pushes the bolt 310 to make the bolt 310 threadedly engaged with the first threaded channel 110 and the second threaded channel 120, if the bolt 310 is subjected to a force that makes it move away from the hollow ball 100 at this time, the bolt 310 is liable to be stressed and unable to maintain the threaded engagement with the corresponding first threaded channel 110 and the second threaded channel 120. In this way, the bolt 310 cannot be rotated and fed into the corresponding first threaded channel 110 and the second threaded channel 120. To solve this problem, therefore, a one-way limiting component 400 needs to be provided in the regular hexagonal sleeve 200. After the bolt 310 is threadedly engaged with the corresponding first threaded channel 110 and the second threaded channel 120, the one-way limiting component 400 restricts the bolt 310 from moving away from the hollow ball 100, so that the bolt 310 maintains the threaded engagement with the corresponding first threaded channel 110 and the second threaded channel 120.

[0047] In this embodiment, as Figure 4 , Figure 8 and Figure 9As shown, the one-way limit assembly 400 includes a limit pin 410 and a first elastic member 420. The limit pin 410 is slidably disposed within the regular hexagonal sleeve 200, and the axis of the limit pin 410 is disposed at an angle to the axis of the regular hexagonal sleeve 200. Specifically, the first elastic member 420 is a compression spring, which is disposed within the regular hexagonal sleeve 200 and connected between the limit pin 410 and the regular hexagonal sleeve 200. The first elastic member 420 is configured to cause one end of the limit pin 410 to protrude from within the regular hexagonal sleeve 200. A plurality of limit annular grooves 311 are formed in a region of the outer portion of the bolt 310 away from its end. The plurality of limit annular grooves 311 are arranged at equal intervals along the axis of the bolt 310. Specifically, the included angle value between the side surface of the limit annular groove 311 closer to the hollow ball 100 and the axis of the bolt 310 is smaller than the included angle value between the side surface of the limit annular groove 311 farther from the hollow ball 100 and the axis of the bolt 310.

[0048] When the staff member threads the bolt 310 corresponding to the web member 300 with the first threaded passage 110 and the second threaded passage 120, at this time, the outer end surface of the web member 300 does not contact the outer end surface of the regular hexagonal sleeve 200. At this time, under the action of the first elastic member 420, the head of the limit pin 410 protrudes from the inside of the regular hexagonal sleeve 200 and is locked in the limit annular groove 311 of the bolt 310. If the bolt 310 is subjected to a force that causes it to move away from the hollow ball 100 at this time, the bolt 310 pushes the limit pin 410 to move obliquely downward along the axis of the limit pin 410 through the side surface of the limit annular groove 311 with a smaller included angle with the axis of the bolt 310. At this time, the locking force between the limit pin 410 and the limit annular groove 311 increases, that is, the resistance when the bolt 310 moves away from the hollow ball 100 increases. Therefore, at this time, the bolt 310 is not easily moved away from the hollow ball 100, so that the end of the bolt 310 remains in threaded engagement with the corresponding first threaded passage 110 and the second threaded passage 120.

[0049] When the staff rotates the regular hexagonal sleeve 200 with a wrench, the regular hexagonal sleeve 200 drives the bolt 310 to rotate synchronously. At this time, under the action of the thread engagement between the end of the bolt 310 and the corresponding first thread channel 110 and the second thread channel 120, the bolt 310 rotates circumferentially and moves into the first thread channel 110 and the second thread channel 120. At this time, the bolt 310 pushes the limit pin 410 to move obliquely upward along the axis of the limit pin 410 through the side surface of the limit ring groove 311 with a larger angle with the axis of the bolt 310. At this time, the pressure between the limit pin 410 and the limit ring groove 311 decreases. Therefore, when the bolt 310 moves into the corresponding first thread channel 110 and the second thread channel 120, the resistance of the limit pin 410 to the bolt 310 decreases. At this time, when the staff rotates the regular hexagonal sleeve 200, they can push the corresponding bolt 310 into the first thread channel 110 and the second thread channel 120 without having to overcome an additional large resistance.

[0050] In this embodiment, as Figure 8 and Figure 9 shown, the diameter of the section of the bolt 310 where the limit ring groove 311 is located is slightly larger than the diameter of the section of the bolt 310 where the thread is located. The diameter of the through holes opened at both ends of the web member 300 for sleeving the bolt 310 is the same as the diameter of the section of the bolt 310 where the limit ring groove 311 is located.

[0051] Before the staff assembles the web member 300, if the bolt 310 is completely inside the web member 300, since the diameter of the section of the bolt 310 where the thread is located is smaller than the diameter of the through hole, the staff can use a piece of relatively hard iron wire to insert through the through hole into the inside of the web member 300 and hook the threaded part of the bolt 310 to drag the bolt 310 outwards, so as to pull the rod part of the bolt 310 out of the through hole.

[0052] In this embodiment, the thread directions at both ends of the first thread channel 110 are opposite, and the thread directions at both ends of the second thread channel 120 are also opposite.

[0053] When the outer end surface of the regular hexagonal sleeve 200 contacts the outer end surface of the web member 300 and continues to rotate the regular hexagonal sleeve 200 for pre-tightening, it is easy to drive the web member 300 to rotate synchronously through the frictional drive between the regular hexagonal sleeve 200 and the web member 300. If the thread directions at both ends of the first thread channel 110 are not opposite, when pre-tightening one end of the web member 300, the pre-tightening force at the other end of the web member 300 will be reduced. The reason for making the thread directions at both ends of the second thread channel 120 opposite is the same as the reason for making the thread directions at both ends of the first thread channel 110 opposite, which will not be elaborated here.

[0054] In this embodiment, the two end ports of the first thread channel 110 are taper threads, and the two end ports of the second thread channel 120 are taper threads.

[0055] When the surface of the bolt 310 is locally worn, it is easy to cause the bolt 310 to no longer be centered with the first thread channel 110 or the second thread channel 120 after the bolt 310 extends into the port of the first thread channel 110 or the second thread channel 120. At this time, it is easy to cause the bolt 310 to not be able to cooperate smoothly with the first thread channel 110 or the second thread channel 120 in terms of threads. Therefore, the ports of the first thread channel 110 and the second thread channel 120 are set as tapered threads to perform centering guidance on the end of the bolt 310 through the tapered threads.

[0056] In this embodiment, a building structure connection node further includes a third thread channel. The third thread channel is arranged inside the hollow sphere 100. The third thread channel has the same diameter as the first thread channel 110 and the second thread channel 120, and the third thread channel does not intersect with the first thread channel 110 and the second thread channel 120.

[0057] The third thread channel is used to connect the chord member 500. Specifically, the third thread channel can be opened at a preset position inside the hollow sphere 100 according to actual design requirements. When installing the chord member 500, the staff makes the bolt end corresponding to the chord member 500 extend into the port of the third thread channel and thread-fit with the third thread channel. At this time, the staff rotates the regular hexagonal sleeve 200, and the regular hexagonal sleeve 200 drives the bolt to rotate synchronously. Under the action of the thread fit between the bolt and the third thread channel, the bolt rotates and moves into the third thread channel. After the outer end face of the chord member 500 abuts against the outer end face of the regular hexagonal sleeve 200, the connection between the chord member 500 and the hollow sphere 100 is completed.

[0058] It can be understood that the reason for making the third thread channel not intersect with the first thread channel 110 and the second thread channel 120 is to prevent the bolt screwed into the third thread channel from interfering with the feeding of the bolt 310 in the first thread channel 110 and the second thread channel 120.

[0059] In the prior art, the assembly of the hollow sphere 100 is usually carried out by welding at the connection between the first hemisphere 101 and the second hemisphere 102 after the first hemisphere 101 and the second hemisphere 102 are buckled together, and the first hemisphere 101 and the second hemisphere 102 are fixed together by welding. However, as the service time increases, the connection position between the first hemisphere 101 and the second hemisphere 102 will be corroded and damaged under the action of the environment. In this way, the connection stability between the first hemisphere 101 and the second hemisphere 102 will drop sharply. To solve this problem, in this embodiment, as Figure 3As shown, the hollow sphere 100 includes a first hemispherical body 101, a second hemispherical body 102, and a central screw 103. The first hemispherical body 101 and the second hemispherical body 102 are snap-fitted with each other, and threaded connection holes are coaxially provided in the first hemispherical body 101 and the second hemispherical body 102. The central screw 103 is threadedly connected to the corresponding threaded connection holes of the first hemispherical body 101 and the second hemispherical body 102.

[0060] When assembling the hollow sphere 100, the worker first threadedly connects the central screw 103 into the corresponding threaded connection holes of the first hemispherical body 101 and the second hemispherical body 102. At this time, the first hemispherical body 101 and the second hemispherical body 102 are connected into a sphere. Next, the worker welds the connection position between the first hemispherical body 101 and the second hemispherical body 102. In this way, the safe service life of the hollow sphere 100 can be further extended. Even if the welded position of the hollow sphere 100 is corroded and damaged, under the connection action of the central screw 103, the first hemispherical body 101 and the second hemispherical body 102 can still be stably connected together, and the connection stability between the first hemispherical body 101 and the second hemispherical body 102 will not decrease sharply.

[0061] In this embodiment, as Figure 8 and Figure 9 shown, a first cavity 130 is jointly formed in the first hemispherical body 101 and the second hemispherical body 102. The first cavity 130 is cross-shaped. A cross-shaped sleeve 140 is provided in the first cavity 130. One part of the cross-shaped sleeve 140 extends along a first axis, and the other part of the cross-shaped sleeve 140 extends along a second axis. The first axis and the second axis are perpendicular to each other in a first plane. A first threaded channel 110 is provided inside the cross-shaped sleeve 140, and the first threaded channel 110 is coaxial with the first axis. A second threaded channel 120 is provided inside the cross-shaped sleeve 140, and the second threaded channel 120 is coaxial with the second axis.

[0062] It should also be supplemented that, in order for the central screw 103 to pass through the cross-shaped sleeve 140 and be threadedly connected to the first hemispherical body 101 and the second hemispherical body 102, specifically, a mating hole should be provided at the corresponding position on the cross-shaped sleeve 140, and the aperture of the mating hole is the same as that of the threaded connection hole.

[0063] When installing the cross-shaped sleeve 140, the staff first place the cross-shaped sleeve 140 into the first cavity 130 corresponding to the first hemisphere 101 or the second hemisphere 102, and make the mating holes formed on the cross-shaped sleeve 140 coaxial with the threaded connection holes formed on the first hemisphere 101 and the second hemisphere 102. Next, the staff fasten the first hemisphere 101 and the second hemisphere 102 together. Since the first cavity 130 is cross-shaped and the cross-shaped sleeve 140 is also of a matching cross shape, the cross-shaped sleeve 140 is completely fixed inside the first cavity 130. Next, the staff insert the central screw 103 into the threaded connection holes to connect the first hemisphere 101 and the second hemisphere 102 together. Finally, welding is performed at the connection position of the first hemisphere 101 and the second hemisphere 102.

[0064] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0065] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A building structure connection node, characterized in that: include: A hollow ball, wherein a first threaded channel is provided in the hollow ball, and both ends of the first threaded channel pass through the hollow ball, and a second threaded channel is also provided in the hollow ball, and both ends of the second threaded channel pass through the hollow ball, and the first threaded channel and the second threaded channel have the same diameter, and the axis of the first threaded channel and the axis of the second threaded channel are perpendicular to each other in the first plane; A regular hexagonal sleeve, wherein there are a plurality of regular hexagonal sleeves, each of which is rotatably arranged on the hollow ball and corresponds to both ends of the first threaded channel and the second threaded channel one by one, and the regular hexagonal sleeve is coaxial with the corresponding first threaded channel and the corresponding second threaded channel and is located outside the corresponding first threaded channel and the corresponding second threaded channel, and a conical tooth surface is provided on the end surface of the terminal of the regular hexagonal sleeve, and the conical tooth surfaces of the regular hexagonal sleeves whose axes are perpendicular to each other in the first plane are meshed with each other; The web rod has bolts sleeved at both ends, and the bolts are threadedly matched with the corresponding first threaded channel and the corresponding second threaded channel. The bolt and the regular hexagonal sleeve can rotate synchronously around the axis of the bolt and slide relatively along the axis of the bolt; the regular hexagonal sleeve is provided with a one-way limit assembly at the end away from the hollow ball, and the one-way limit assembly is used to limit the bolt from moving along its axis in the direction away from the hollow ball after the bolt is threadedly matched with the corresponding first threaded channel and the second threaded channel; the one-way limit assembly includes a limit pin and a first elastic member, the limit pin is slidably arranged in the regular hexagonal sleeve, and the axis of the limit pin is arranged at an angle to the axis of the regular hexagonal sleeve, the first elastic member is arranged in the regular hexagonal sleeve and connected between the limit pin and the regular hexagonal sleeve, and the first elastic member is used to make one end of the limit pin extend out of the regular hexagonal sleeve; A plurality of limiting ring grooves are arranged outside the bolt and in an area away from the end thereof, and the plurality of limiting ring grooves are arranged at equal intervals along the axis of the bolt. The plurality of limiting ring grooves are arranged at equal intervals along the axis of the bolt.

2. A building structure connection node according to claim 1, characterized in that: The diameter of the bolt section where the limiting ring groove is located is slightly larger than the diameter of the bolt section where the thread is located.

3. A building structure connection node according to claim 1, characterized in that: The threads at two ends of the first threaded channel have opposite rotation directions, and the threads at two ends of the second threaded channel also have opposite rotation directions.

4. A building structure connection node according to claim 3, characterized in that: The two end ports of the first threaded channel are tapered threads.

5. A building structure connection node according to claim 1, characterized in that: It also includes a third threaded channel, which is arranged inside the hollow ball. The third threaded channel has the same diameter as the first threaded channel and the second threaded channel, and does not intersect with the first threaded channel and the second threaded channel.

6. A building structure connection node according to claim 1, characterized in that: A threaded positioning hole is provided on the outside of the regular hexagonal sleeve, and a first waist groove is provided on the outer periphery of the bolt. The diameter of the first waist groove matches the diameter of the threaded positioning hole. A top screw is connected to the inner thread of the threaded positioning hole, and the bottom of the top screw is slidably abutted against the bottom of the first waist groove.

7. A building structure connection node according to claim 1, characterized in that: The hollow ball includes a first hemisphere, a second hemisphere and a central screw. The first hemisphere and the second hemisphere are buckled together, and coaxial threaded connection holes are provided in the first hemisphere and the second hemisphere. The central screw is threadedly connected to the threaded connection holes corresponding to the first hemisphere and the second hemisphere.

8. A building structure connection node according to claim 7, characterized in that: A first cavity is formed together in the first hemisphere and the second hemisphere. The first cavity is cross-shaped. A cross-shaped sleeve is arranged in the first cavity. One part of the cross-shaped sleeve extends along the first axis, and another part of the cross-shaped sleeve extends along the second axis. The first axis and the second axis are perpendicular to each other in the first plane. The first threaded channel is opened inside the cross-shaped sleeve, and the first threaded channel is coaxial with the first axis. The second threaded channel is opened inside the cross-shaped sleeve, and the second threaded channel is coaxial with the second axis.

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