Building structure connecting joint

Abstract

The invention relates to the technical field of general building construction, in particular to a building structure connecting joint which comprises a hollow ball, a regular hexagonal sleeve and a web member, a first threaded channel is formed in the hollow ball, the two ends of the first threaded channel penetrate out of the hollow ball, a second threaded channel is further formed in the hollow ball, and the two ends of the second threaded channel are communicated; the first threaded channel and the second threaded channel are the same in diameter. According to the device, the regular hexagonal sleeves are arranged, when the web member is installed, due to the fact that the conical tooth faces of the regular hexagonal sleeves with the axes located in the first plane and perpendicular to one another are meshed with one another, the four regular hexagonal sleeves can synchronously rotate in the circumferential direction by rotating any regular hexagonal sleeve, and therefore the four regular hexagonal sleeves drive the corresponding bolts to rotate in the circumferential direction; and compared with the mode that the web members and the hollow balls are assembled and connected one by one in the prior art, more labor is saved, convenience is achieved, the working time of workers can be greatly saved, and the installation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of general building construction, and in particular to a building structure connection node. Background Art

[0002] A spherical connection node is a structural component specially designed for multi-directional connection in a building structure, which allows the rods to rotate and move freely in multiple directions. This type of node is widely used in spatial structures that require flexible connection of rods at various angles, such as grids, domes and other complex steel structures. The main structure of the existing spherical connection node includes a hollow ball and a connector. The hollow ball is the core component of the spherical connection node, which is usually made of high-strength steel or other corrosion-resistant materials. The connector is usually a regular hexagonal sleeve, which is rotatably set on the outside of the hollow ball to connect the web or chord and the hollow ball together.

[0003] During the specific connection, the staff needs to first hook out the bolts at both ends of the chord rod or the web rod, and then make the waist groove on the outer periphery of the bolt correspond to the position of the positioning hole opened on the regular hexagonal sleeve, and then connect the top screw thread into the positioning hole and make the bottom of the top screw slide and abut against the bottom of the waist groove, and then make the bolt abut against the threaded hole of the hollow ball, and finally rotate the regular hexagonal sleeve. At this time, the regular hexagonal sleeve drives the bolt to rotate synchronously through the top screw. Under the thread cooperation of the bolt and the threaded hole, the bolt is gradually screwed into the interior of the hollow ball, so that the web rod or the chord rod and the regular hexagonal sleeve are pressed against each other, and the installation is completed. However, the existing hollow ball node has the following problems during installation: rotating a regular hexagonal sleeve can only make the bolt corresponding to a web rod or chord rod screw into the hollow ball, and a hollow ball usually needs to be connected to multiple web rods or chord rods, so the operation during installation is relatively cumbersome. Summary of the invention

[0004] Based on this, it is necessary to provide a building structure connection node to address the problems existing in the installation of the current hollow ball node, so as to solve the problem that the operation is relatively cumbersome when installing and connecting the existing hollow ball node and the web and chord.

[0005] The above purpose is achieved through the following technical solutions: A building structure connection node comprises: 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. The bolts are threadedly matched with the corresponding first threaded channel and the corresponding second threaded channel. The bolts and the regular hexagonal sleeve can rotate synchronously around the axis of the bolt and slide relatively along the axis of the bolt.

[0006] Preferably, a one-way limit assembly is provided at one end of the regular hexagonal sleeve away from the hollow ball, and the one-way limit assembly is used to limit the bolt from moving along its axis in a direction away from the hollow ball after the bolt is threadedly engaged with the corresponding first threaded channel and the second threaded channel.

[0007] Preferably, the one-way limit assembly comprises 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 with 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.

[0008] 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.

[0009] Preferably, the thread rotation directions at two ends of the first threaded channel are opposite, and the thread rotation directions at two ends of the second threaded channel are also opposite.

[0010] Preferably, both end ports of the first threaded channel are tapered threads.

[0011] Preferably, a building structure connection node also includes a third threaded channel, which 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.

[0012] Preferably, 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 is adapted to 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.

[0013] Preferably, the hollow sphere includes a first hemisphere, a second hemisphere and a central screw. The first hemisphere and the second hemisphere are interlocked, 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.

[0014] Preferably, 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, a part of the cross-shaped sleeve extends along the first axis, 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, and the second threaded channel is opened inside the cross-shaped sleeve, and the second threaded channel is coaxial with the second axis.

[0015] The beneficial effects of the present invention are: The present invention provides a regular hexagonal sleeve. When installing the web, since the conical tooth surfaces of the regular hexagonal sleeves whose axes are located in the first plane and are perpendicular to each other are meshed 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, thereby causing the four regular hexagonal sleeves to drive the corresponding bolts to rotate in the circumferential direction. At this time, under the thread cooperation between the bolt and the corresponding first threaded channel and the second threaded channel, the bolt gradually moves to the internal preset position of the first threaded channel and the second threaded channel. At this time, the four webs are all in contact with the outer end surface of the regular hexagonal sleeve, and the assembly connection of one end of the four webs with the hollow ball is completed at the same time. Compared with the one-to-one assembly connection between the web and the hollow ball 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of a building structure connection node of the present invention; Figure 2 A top view of a building structure connection node of the present invention; Figure 3 for Figure 2 Middle AA section view; Figure 4 for Figure 3 Schematic diagram of the enlarged structure at B in the middle; Figure 5 for Figure 3 Schematic diagram of the enlarged structure at D in the middle; Figure 6 A schematic diagram of an embodiment of a building structure connection node of the present invention; Figure 7 A side view of a building structure connection node of the present invention; Figure 8 for Figure 7 Middle CC section view; Fig. 9 An exploded view of a regular hexagonal sleeve and a bolt in a building structure connection node of the present invention; Fig.10 The present invention is a schematic diagram of the assembly state of a building structure connection node.

[0017] in: 100, hollow ball; 101, first hemisphere; 102, second hemisphere; 103, central screw; 110, first threaded channel; 120, second threaded channel; 130, first cavity; 140, cross sleeve; 200, regular hexagonal sleeve; 210, tapered tooth surface; 220, threaded positioning hole; 230, top screw; 300, belly rod; 310, bolt; 311, limiting ring groove; 312, first waist groove; 400, one-way limiting assembly; 410, limiting pin; 420, first elastic member; 500. Chord. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is 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.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which 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 therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] like Figures 1 to 10 As shown, a building structure connection node includes a hollow ball 100, a regular hexagonal sleeve 200 and a web 300. A first threaded channel 110 is provided in the hollow ball 100, and both ends of the first threaded channel 110 pass through the hollow ball 100. A second threaded channel 120 is also provided in the hollow ball 100, and both ends of the second threaded channel 120 are connected. 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 the multiple regular hexagonal sleeves 200 are all rotatably arranged on the hollow ball 100. Specifically, there are four regular hexagonal sleeves 200, and the four regular hexagonal sleeves 200 are connected to the first threaded channel 110. The two ends of the threaded channel 110 and the second threaded channel 120 correspond one to one, and the regular hexagonal sleeve 200 is coaxial with the corresponding first threaded channel 110 and the corresponding second threaded channel 120 and is located on the outside of the corresponding first threaded channel 110 and the corresponding second threaded channel 120. The end face of the regular hexagonal sleeve 200 is provided with a bevel tooth surface 210, and the bevel tooth surfaces 210 of the regular hexagonal sleeve 200 whose axes are perpendicular to each other in the first plane are meshed with each other. Bolts 310 are sleeved at both ends of the web 300, and the bolts 310 are threadedly matched with the first threaded channel 110 and the second threaded channel 120. The bolt 310 and the regular hexagonal sleeve 200 can rotate synchronously around the axis of the bolt 310 and slide relatively along the axis of the bolt 310.

[0022] When the hollow ball 100 and the web 300 need to be assembled, the staff first inserts the bolts 310 corresponding to one end of the two webs 300 into the two ends of the first threaded channel 110 respectively, so that the ends of the bolts 310 corresponding to the two webs 300 are threadedly matched with the two ends of the first threaded channel 110. Specifically, the ends of the bolts 310 need to be tightly pressed against the inside of the two end ports of the first threaded channel 110 so that the bolts 310 can move into the first threaded channel 110 when rotating circumferentially. Take two webs 300, so that the bolts 310 corresponding to one end of the two webs 300 are respectively inserted into the two ends of the second threaded channel 120, so that the ends of the bolts 310 corresponding to the two webs 300 are threadedly matched with the two ends of the second threaded channel 120. Next, the staff rotates any hexagonal sleeve 200. At this time, since the axes of the hexagonal sleeves 200 are located in the first plane and are perpendicular to each other, the conical tooth surfaces 210 of the hexagonal sleeves 200 are meshed with each other, so rotating any hexagonal sleeve 200 can make the four hexagonal sleeves 200 Synchronous circumferential rotation, when the four regular hexagonal sleeves 200 rotate circumferentially, since the bolt 310 and the regular hexagonal sleeve 200 can synchronously rotate around the axis of the bolt 310 and slide along the axis of the bolt 310, and since the end of the bolt 310 is threadedly matched with the first threaded channel 110 and the second threaded channel 120, as the bolt 310 rotates circumferentially, the bolt 310 rotates and gradually moves into the first threaded channel 110 and the second threaded channel 120, at this time, the bolt 310 pulls the regular hexagonal sleeve 200 through its bolt head. The hexagonal sleeve 200 synchronously moves toward the direction approaching the hollow ball 100. When the bolt 310 moves to the preset internal positions of the first threaded channel 110 and the second threaded channel 120, the four webs 300 are all in contact with the outer end faces of the regular hexagonal sleeve 200. At this time, the assembly connection between one end of the four webs 300 and the hollow ball 100 is completed at the same time. Compared with the one-to-one assembly connection between the webs 300 and the hollow ball 100 in the prior art, it is more labor-saving and convenient, which can greatly save the working time of the staff and improve the installation efficiency.

[0023] It should be further explained that in order to enable the bolt 310 and the hexagonal sleeve 200 to rotate synchronously around the axis of the bolt 310 and slide relatively along the axis of the bolt 310, as shown in FIG. Fig. 9 As shown, a threaded positioning hole 220 is provided on the outside of the regular hexagonal sleeve, and a first waist groove 312 is provided on the outer periphery of the bolt 310. The diameter of the first waist groove 312 is adapted to the diameter of the threaded positioning hole 220. A top screw 230 is connected to the inner thread of the threaded positioning hole 220, and the bottom of the top screw 230 is slidably abutted against the bottom of the first waist groove 312.

[0024] After the bolt 310 is inserted into the center 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 staff screws the top screw 230 into the threaded positioning hole 220 and makes the bottom of the top screw 230 slide and abut against the bottom of the first waist groove 312. At this time, under the transmission action of the top screw 230, the regular hexagonal sleeve 200 can drive the bolt 310 to rotate synchronously, and under the guiding action of the first waist groove 312, the bolt 310 can also slide along its axis relative to the regular hexagonal sleeve 200.

[0025] In this embodiment, if Figure 4 , Figure 8 and Fig. 9 As shown, a one-way limit assembly 400 is provided at one end of the regular hexagonal sleeve 200 away from the hollow ball 100. The one-way limit assembly 400 is used to limit the bolt 310 from moving along its axis in a direction 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.

[0026] It is understandable that when the staff pushes the bolt 310 so that the bolt 310 is threadedly engaged with the first threaded channel 110 and the second threaded channel 120, if the bolt 310 is subjected to a force that moves it away from the hollow ball 100 at this time, the bolt 310 is easily subjected to the force and cannot maintain threaded engagement with the corresponding first threaded channel 110 and the second threaded channel 120, which will cause the bolt 310 to be unable to rotate and feed into the corresponding first threaded channel 110 and the second threaded channel 120. To solve this problem, it is necessary to provide a one-way limit assembly 400 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 limit assembly 400 is used to limit the bolt 310 from moving in a direction away from the hollow ball 100, so that the bolt 310 maintains threaded engagement with the corresponding first threaded channel 110 and the second threaded channel 120.

[0027] In this embodiment, if Figure 4 , Figure 8 and Fig. 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 arranged in the regular hexagonal sleeve 200, and the axis of the limit pin 410 is arranged at an angle with the axis of the regular hexagonal sleeve 200. Specifically, the first elastic member 420 is a compression spring, which is arranged in the regular hexagonal sleeve 200 and connected between the limit pin 410 and the regular hexagonal sleeve 200. The first elastic member 420 is used to make the limit One end of the pin 410 extends out from the hexagonal sleeve 200, and a plurality of limiting ring grooves 311 are provided on the outside of the bolt 310 away from the end thereof. The plurality of limiting ring grooves 311 are arranged at equal intervals along the axis of the bolt 310. Specifically, the angle between the side surface of the limiting ring groove 311 close to the hollow ball 100 and the axis of the bolt 310 is smaller than the angle between the side surface of the limiting ring groove 311 away from the hollow ball 100 and the axis of the bolt 310.

[0028] When the staff makes the bolt 310 corresponding to the web 300 threadedly cooperate with the first threaded channel 110 and the second threaded channel 120, the outer end surface of the web 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 extends from the inside of the regular hexagonal sleeve 200 and is stuck in the limit ring groove 311 of the bolt 310. If the bolt 310 is subjected to a force that moves it away from the hollow ball 100, the bolt 310 passes through the limit ring groove 311. The side surface with a smaller angle between the positioning ring groove 311 and the axis of the bolt 310 pushes the limit pin 410 to move obliquely downward along the axis of the limit pin 410. At this time, the locking force between the limit pin 410 and the limiting ring groove 311 increases, that is, the resistance of the bolt 310 when moving away from the hollow ball 100 increases. Therefore, at this time, it is not easy for the bolt 310 to move away from the hollow ball 100, so that the end of the bolt 310 maintains threaded cooperation with the corresponding first threaded channel 110 and the second threaded channel 120.

[0029] When the staff rotates the regular hexagonal socket 200 with a wrench, the regular hexagonal socket 200 drives the bolt 310 to rotate synchronously. At this time, under the action of the thread cooperation between the end of the bolt 310 and the corresponding first threaded channel 110 and the second threaded channel 120, the bolt 310 rotates circumferentially and moves into the first threaded channel 110 and the second threaded 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 with a larger angle between the limit ring groove 311 and the axis of the bolt 310. At this time, the pressure between the limit pin 410 and the limit ring groove 311 is reduced. Therefore, when the bolt 310 moves into the corresponding first threaded channel 110 and the second threaded channel 120, the resistance of the limit pin 410 to the bolt 310 is reduced. At this time, when the staff rotates the regular hexagonal socket 200, there is no need to overcome additional large resistance to push the corresponding bolt 310 to move into the first threaded channel 110 and the second threaded channel 120.

[0030] In this embodiment, if Figure 8 and Fig. 9 As shown, the diameter of the bolt 310 section where the limiting ring groove 311 is located is slightly larger than the diameter of the bolt 310 section where the thread is located, and the diameter of the through holes for sleeve bolts 310 opened at both ends of the web 300 is the same as the diameter of the bolt 310 section where the limiting ring groove 311 is located.

[0031] Before the staff assembles the belly bar 300, if the bolt 310 is completely located inside the belly bar 300, since the diameter of the bolt 310 section where the thread is located is smaller than the diameter of the through hole, the staff can use a relatively hard iron wire to insert into the belly bar 300 through the through hole and hook the threaded part of the bolt 310 to drag the bolt 310 outward, thereby pulling the rod of the bolt 310 out of the through hole.

[0032] In this embodiment, the threads at two ends of the first threaded channel 110 have opposite rotation directions, and the threads at two ends of the second threaded channel 120 also have opposite rotation directions.

[0033] When the outer end face of the regular hexagonal sleeve 200 contacts the outer end face of the web 300, the regular hexagonal sleeve 200 continues to be rotated for pre-tightening, and the web 300 is easily driven to rotate synchronously through the friction transmission between the regular hexagonal sleeve 200 and the web 300. If the threads at both ends of the first threaded channel 110 are not rotated in opposite directions, when one end of the web 300 is pre-tightened, the pre-tightening force at the other end of the web 300 will be reduced, and the reason why the threads at both ends of the second threaded channel 120 have opposite directions is the same as the reason why the threads at both ends of the first threaded channel 110 have opposite directions, which will not be repeated here.

[0034] In this embodiment, both end ports of the first threaded channel 110 are tapered threads, and both end ports of the second threaded channel 120 are tapered threads.

[0035] If the surface of the bolt 310 is partially worn, it is easy for the bolt 310 to extend into the port of the first threaded channel 110 or the second threaded channel 120, and the bolt 310 and the first threaded channel 110 or the second threaded channel 120 are no longer aligned. At this time, it is easy for the bolt 310 to be unable to smoothly cooperate with the first threaded channel 110 or the second threaded channel 120. Therefore, the ports of the first threaded channel 110 and the second threaded channel 120 are set to tapered threads, and the tapered threads are used to guide the end of the bolt 310 to be centered.

[0036] In this embodiment, a building structure connection node also includes a third threaded channel, which is arranged inside the hollow ball 100. The third threaded channel has the same diameter as the first threaded channel 110 and the second threaded channel 120, and the third threaded channel does not intersect with the first threaded channel 110 and the second threaded channel 120.

[0037] The third threaded channel is used to connect the chord 500. Specifically, the third threaded channel can be opened at a preset position in the hollow ball 100 according to actual design requirements. When installing the chord 500, the staff makes the end of the bolt corresponding to the chord 500 penetrate into the port of the third threaded channel and cooperate with the thread of the third threaded 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 cooperation between the bolt and the third threaded channel, the bolt rotates and moves into the third threaded channel. After the outer end face of the chord 500 abuts against the outer end face of the regular hexagonal sleeve 200, the connection between the chord 500 and the hollow ball 100 is completed.

[0038] It is understandable that the reason why the third threaded channel does not intersect with the first threaded channel 110 and the second threaded channel 120 is to prevent the bolts screwed into the third threaded channel from interfering with the feeding of the bolts 310 in the first threaded channel 110 and the second threaded channel 120 .

[0039] In the prior art, the hollow ball 100 is usually assembled by welding the first hemisphere 101 and the second hemisphere 102 at the connection 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 use time increases, the connection position of the first hemisphere 101 and the second hemisphere 102 will be corroded and damaged by the environment, which will cause the connection stability of the first hemisphere 101 and the second hemisphere 102 to drop sharply. To solve this problem, in this embodiment, as shown in FIG. Figure 3As shown, the hollow ball 100 includes a first hemisphere 101, a second hemisphere 102 and a central screw 103. The first hemisphere 101 and the second hemisphere 102 are interlocked, and coaxial threaded connection holes are provided in the first hemisphere 101 and the second hemisphere 102. The central screw 103 is threadedly connected to the threaded connection holes corresponding to the first hemisphere 101 and the second hemisphere 102.

[0040] When assembling the hollow ball 100, the staff firstly threadably connects the central screw 103 into the threaded connection holes corresponding to the first hemisphere 101 and the second hemisphere 102. At this time, the first hemisphere 101 and the second hemisphere 102 are connected into a sphere. Next, the staff welds the connection position of the first hemisphere 101 and the second hemisphere 102. This can further extend the safe use time of the hollow ball 100. Even if the welding position of the hollow ball 100 is rusted and damaged, the first hemisphere 101 and the second hemisphere 102 can still be stably connected together under the connection action of the central screw 103, and the connection stability of the first hemisphere 101 and the second hemisphere 102 will not be sharply reduced.

[0041] In this embodiment, if Figure 8 and Fig. 9 As shown, a first cavity 130 is formed together in the first hemisphere 101 and the second hemisphere 102. The first cavity 130 is cross-shaped. A cross-shaped sleeve 140 is arranged in the first cavity 130. One part of the cross-shaped sleeve 140 extends along the first axis, and another part of the cross-shaped sleeve 140 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 110 is opened inside the cross-shaped sleeve 140, and the first threaded channel 110 is coaxial with the first axis. The second threaded channel 120 is opened inside the cross-shaped sleeve 140, and the second threaded channel 120 is coaxial with the second axis.

[0042] It should also be noted that in order to enable the central screw 103 to pass through the cross sleeve 140 and threadedly connect the first hemisphere 101 and the second hemisphere 102, specifically, a matching hole should be opened at the corresponding position on the cross sleeve 140, and the aperture of the matching hole is the same as the aperture of the threaded connection hole.

[0043] When installing the cross sleeve 140, the staff first puts the cross sleeve 140 into the first cavity 130 corresponding to the first hemisphere 101 or the second hemisphere 102, and makes the matching hole opened on the cross sleeve 140 coaxial with the threaded connection holes opened on the first hemisphere 101 and the second hemisphere 102. Next, the staff snaps the first hemisphere 101 and the second hemisphere 102 together. Since the first cavity 130 is a cross shape and the cross sleeve 140 is also a matching cross shape, the cross sleeve 140 is completely fixed inside the first cavity 130. Next, the staff inserts the center screw 103 into the threaded connection hole to connect the first hemisphere 101 and the second hemisphere 102 together, and finally welds the first hemisphere 101 and the second hemisphere 102 at the connection position.

[0044] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached 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. The bolts are threadedly matched with the corresponding first threaded channel and the corresponding second threaded channel. The bolts and the regular hexagonal sleeve can rotate synchronously around the axis of the bolt and slide relatively along the axis of the bolt.

2. A building structure connection node according to claim 1, characterized in that: A one-way limit assembly is provided at one end of the regular hexagonal sleeve away from the hollow ball. The one-way limit assembly is used to limit the bolt from moving along its axis in a direction away from the hollow ball after the bolt is threadedly engaged with the corresponding first threaded channel and the second threaded channel.

3. A building structure connection node according to claim 2, characterized in that: 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 with 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.

4. A building structure connection node according to claim 3, 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.

5. 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.

6. A building structure connection node according to claim 5, characterized in that: The two end ports of the first threaded channel are tapered threads.

7. 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.

8. 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.

9. 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.

10. A building structure connection node according to claim 9, 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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