Steel structure building connecting device

Abstract

The application discloses a steel structure building connecting device, and relates to the technical field of connecting nodes, which comprises a horizontal frame, a web member for strengthening the strength of the horizontal frame, a connecting mechanism for quickly connecting the horizontal frame and the web member and preventing loosening, a mounting block arranged at the end of the web member, and an outer butt joint mechanism arranged between the web member and the connecting mechanism. The connecting mechanism has the advantages that the length requirement of the web member is reduced, the actual connecting length can be changed to a certain extent according to needs, the connecting mechanism can be locked by only rotating half a circle during locking, the operation is simple, and when loosening inevitably occurs due to external influences during the later use, the inner self-adjusting sleeve can be displaced, so that the gap between the inner clamping block and the outer clamping block is reduced, and the relative sliding distance is reduced.

Description

Technical Field

[0001] This invention relates to the field of connection node technology, and more particularly to a connection device for steel structure buildings. Background Technology

[0002] Steel trusses refer to truss structures made of steel, commonly used in industrial and civil buildings such as roof structures, crane beams, bridges, and hydraulic gates, as primary load-bearing components. Various tower types, such as mast towers, television towers, and transmission line towers, often utilize spatial steel trusses composed of three, four, or more planar trusses. Because steel trusses are constructed by splicing various members together, they are lighter and require less material compared to solid-web steel beams made of plates, yet can withstand greater loads, making them a commonly used supporting frame in modern architecture.

[0003] The existing web members and nodes are fixed by welding or bolting. Since steel trusses are usually built at high locations, and the two ends of the web members supporting the middle need to be connected at the included angles of the upper and lower diagonal members, the installation of each web member is quite difficult. At the same time, the spacing between steel trusses varies (different steel trusses have different widths, which leads to changes in the gaps between trusses), resulting in inconsistent angles when the web members are installed. This makes it impossible to produce web members uniformly. In addition, during use, the steel truss may be subjected to repeated loads (i.e., relative sliding between the contact surfaces of the threads). Repeated friction of the web members will cause the oxide film on the metal surface to crack, exposing fresh metal and causing adhesive wear, gradually reducing the preload. Summary of the Invention

[0004] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The present invention provides a steel structure building connection device to solve the technical problems that existing steel structure node connections are inconvenient and lack self-locking function.

[0005] The present invention adopts the following technical solution: a steel structure building connection device, including a cross frame and a web member to strengthen the cross frame, a connection mechanism for quickly connecting the cross frame and the web member and preventing loosening, an installation block is provided at the end of the web member, the web member and the connection mechanism are connected by an external docking mechanism, the external docking mechanism includes an installation block provided at the end of the web member and a connecting sleeve provided on the outer surface of the installation block, an external locking block is provided on the connecting sleeve, and the installation block and the web member can be connected by welding.

[0006] Furthermore, the cross-section of the outer card assembly is tooth-shaped, and the outer card assembly is partially set around the outer connecting sleeve at an angle of 180°.

[0007] Furthermore, the connecting mechanism includes a fixed threaded sleeve and a self-adjusting sleeve disposed within the fixed threaded sleeve, and an internal adjusting rod is disposed within the self-adjusting sleeve, while a plurality of internal threaded blocks are disposed through the fixed threaded sleeve.

[0008] Furthermore, the self-adjusting sleeve and the fixed threaded sleeve are threadedly connected, and the self-adjusting sleeve has several mating grooves with the internal threaded stop, and the diameter of the mating grooves is larger than the diameter of the internal threaded stop. The inner surface of the self-adjusting sleeve is provided with a set of internal locking blocks, and the locking blocks are partially set around the inner surface of the self-adjusting sleeve at an angle of 180°.

[0009] Furthermore, the inner adjusting rod is set on the end face of the self-adjusting sleeve. The inner adjusting rod has a guide groove, a rotating groove and a guide spiral groove in sequence from the outside to the inside. The rotating groove is opened at an angle of 180°. The guide groove and the rotating groove are transitioned through the segment arc surface. The rotating groove and the guide spiral groove are transitioned through the segment arc surface. The spiral tilt angle of the guide spiral groove is greater than 70°. The position of the guide groove corresponds to the position of the end of the inner locking block.

[0010] Furthermore, the connecting sleeve has an installation hole, the inner diameter of which is adapted to the outer diameter of the inner adjusting rod, and a guide ball that is engaged in the guide groove is provided in the installation hole.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] Firstly, steel trusses are used in different environments, and the requirements for functional effects will vary considerably. For example, when used in a relatively static position (such as in a tower), the probability of relative slippage of the web members in the steel truss due to the influence of forces is relatively small. In this case, the focus should be on the quick installation function and adaptability of the nodes. When using this connection mechanism, the actual node is composed of a combination of a fixed threaded sleeve and a self-adjusting threaded sleeve welded to the cross frame. The web members are connected to the self-adjusting sleeve through the connecting sleeve. The self-adjusting sleeve and the connecting sleeve are connected by threads, so the position of the self-adjusting sleeve can be changed. This reduces the length requirement of the web members when connecting the cross frame, improving adaptability. Secondly, during the connection, the mutual locking action of the inner and outer locking blocks can achieve a self-locking effect. Furthermore, due to the structural shape of the inner and outer locking blocks, detachment can be effectively prevented.

[0013] Secondly, when the truss is moved to a structure that needs to withstand repeated loads, the relative sliding wear of the connection nodes needs to be considered. If the self-adjustment is not performed for secondary locking as wear continues, the connection may wobble, thus affecting the structural strength. In this case, the position of the self-adjusting sleeve is adjusted by the cooperation of the inner adjusting rod and the guide ball, combined with the relative sliding of the web members. This reduces the contact gap between the inner and outer locking blocks in the self-adjusting sleeve, thereby reducing the relative sliding amplitude. When this effect is required, the inner threaded stop block needs to be inserted into the fixed threaded sleeve during installation. That is, the inner threaded stop block is located in the mating groove, which plays a role in relatively limiting the sliding direction. In subsequent inspections, only the relative displacement of the self-adjusting sleeve needs to be observed, thus facilitating inspection.

[0014] In summary, this connecting mechanism reduces the length requirement of the web member during use, allowing the actual connection length to be varied to some extent as needed. It also reduces the requirements for the connection nodes when connecting web members at an angle. Furthermore, locking is simple; only a half-turn rotation is required. In later use, when loosening inevitably occurs due to external influences (i.e., the gap between the inner and outer locking blocks increases), the inner self-adjusting sleeve can shift, thereby reducing the gap between the inner and outer locking blocks and decreasing the relative sliding distance. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure between the connecting mechanism and the web member of the present invention;

[0018] Figure 3 This is a schematic diagram of the unfolded structure of the connecting mechanism and the external docking mechanism of the present invention;

[0019] Figure 4 This is a cross-sectional view of the connection mechanism of the present invention;

[0020] Figure 5 This is a schematic diagram of the unfolded structure of the inner adjusting rod of the present invention;

[0021] Figure 6This is a schematic diagram of the mating structure of the inner and outer card blocks of the present invention;

[0022] Figure 7 This is a schematic diagram of the outer surface structure of the fixed threaded sleeve of the present invention.

[0023] Figure label:

[0024] 1. Crossbar; 2. Connecting mechanism; 21. Fixed threaded sleeve; 211. Internal threaded stop block; 22. Self-adjusting sleeve; 221. Internal locking block; 222. Mating groove; 23. Internal adjusting rod; 231. Guide groove; 232. Rotating groove; 233. Guide spiral groove; 3. Mounting block; 31. Connecting sleeve; 311. External locking block; 312. Mounting hole; 313. Guide ball. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0027] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The following is combined with Figures 1 to 7 As shown, this embodiment of the invention provides a steel structure building connection device, including a crossbeam 1 and a web member to strengthen the crossbeam 1. A connection mechanism 2 is used to quickly connect the crossbeam 1 and the web member and prevent loosening. An installation block 3 is provided at the end of the web member. The web member and the connection mechanism 2 are connected by an external docking mechanism. The external docking mechanism includes an installation block 3 provided at the end of the web member and a connecting sleeve 31 provided on the outer surface of the installation block 3. An external locking block 311 is provided on the connecting sleeve 31.

[0031] During operation, in actual production, if the web member is very long, the mounting block 3 and the connecting sleeve 31 can be rotatably connected. If the web member is short, the mounting block 3 and the connecting sleeve 31 can be fixedly connected. The choice between rotatable connection and fixed connection depends on the ease of use.

[0032] Specifically, the outer card assembly 311 has a tooth-shaped cross-section, and the outer card assembly 311 is partially arranged around the outer connecting sleeve 31 at an angle of 180°.

[0033] During operation, due to its toothed shape, similar to a right triangle, and the limiting side being the outward-moving side, the right-angled side cannot move, thus achieving a limiting effect. However, when used on a bridge, the load does not disappear, thus giving it a tendency to slide relative to the ground. The movable surface being an inclined surface ensures the effect of load sliding.

[0034] Specifically, the connecting mechanism 2 includes a fixed threaded sleeve 21 and a self-adjusting sleeve 22 disposed within the fixed threaded sleeve 21. An inner adjusting rod 23 is disposed within the self-adjusting sleeve 22, and a plurality of internal threaded blocks 211 are disposed through the fixed threaded sleeve 21.

[0035] During operation, the internal thread stop 211 is installed through the fixed threaded sleeve 21, meaning that the internal thread stop 211 can be disassembled. This is because during the initial position adjustment, the self-adjusting sleeve 22 may need to rotate too much, and the presence of the internal thread stop 211 may affect the rotation of the self-adjusting sleeve 22. To better facilitate use, multiple through holes can be arrayed on the fixed threaded sleeve 21 to allow the internal thread stop 211 to better restrict its rotation. It should be noted that the internal thread stop 211 is mainly used to prevent the self-adjusting sleeve 22 from rotating excessively due to friction between the outer locking block 311 and the internal thread stop 211 when the connecting sleeve 31 and the self-adjusting sleeve 22 are rotated later. This would cause a significant change in the adjusted length, making subsequent installation inconvenient.

[0036] Specifically, the self-adjusting sleeve 22 is threadedly connected to the fixed threaded sleeve 21. The self-adjusting sleeve 22 has several mating grooves 222 that engage with the internal threaded stop 211. The width of the mating grooves 222 is greater than the width of the internal threaded stop 211. During use, the self-adjusting sleeve 22 will rotate to a certain extent; therefore, the width of the mating grooves 222 on the self-adjusting sleeve 22 needs to be greater than the width of the internal threaded stop 211 inserted into it to ensure rotation is possible if gaps appear later. A set of internal locking blocks 221 is provided on the inner surface of the self-adjusting sleeve 22, and these locking blocks are partially positioned around the inner surface of the self-adjusting sleeve 22 at an angle of 180°. (To prevent the internal threaded stop 211 from falling off or becoming difficult to insert during use, a T-shaped structure with gradually increasing width can be selected, with a rubber layer wrapped around one side. During insertion, the outer rubber layer deforms, improving the connection's firmness.)

[0037] During operation, the angles of both the inner locking block 221 and the outer locking block are 180°, meaning they can combine to form a circle. This ensures that inserting the connecting sleeve 31 into the self-adjusting sleeve 22 is not affected. After rotating 180°, the inner locking block 221 and the outer locking block 311 engage with each other, acting as a limit switch. Unlocking this structure requires rotation. This node is primarily used in load-bearing areas with a tendency to slide, and it provides a non-completely locked fixation. Compared to threaded connections, the load causes relative movement between the threaded screws... Vibration can cause the gap between threads to increase, making them loose. However, it should also have a tendency to move under load, which can reduce the phenomenon of increased gap in the connection node caused by the load. If it is inconvenient to insert the thread in a 180° manner during use, the angle can be slightly reduced. When connecting, because a guide ball 313 is also provided, if it is not installed properly (i.e., the guide ball 313 does not enter the guide groove 231, the connecting sleeve 31 cannot be inserted into the self-adjusting sleeve 22), the device also has a calibration and anti-misconnection effect through the setting of various grooves.

[0038] Specifically, the inner adjusting rod 23 is set on the end face of the self-adjusting sleeve 22. The inner adjusting rod 23 has a guide groove 231, a rotating groove 232 and a guide spiral groove 233 sequentially opened from the outside to the inside. The rotating groove 232 is opened at an angle of 180°. The guide groove 231 and the rotating groove 232 are transitioned through a segment arc surface. The rotating groove 232 and the guide spiral groove 233 are also transitioned through a segment arc surface. The spiral inclination angle of the guide spiral groove 233 is greater than 70°. The position of the guide groove 231 corresponds to the end position of the inner locking block 221.

[0039] The various grooves are designed to accommodate the different motion states of the connecting sleeve 31 during connection, ensuring that the connecting sleeve 31 and the self-adjusting sleeve 22 can be connected. When the connecting sleeve 31 slides relative to the self-adjusting sleeve 22, the self-adjusting sleeve 22 can rotate. During use, it should be noted that when the guide ball 313 moves inward along the guide spiral groove 233, the self-adjusting sleeve 22 moves outward. That is, the self-adjusting sleeve 22 is rotated by the guide thread groove. At this time, the thread direction of the self-adjusting sleeve 22 and the fixed threaded sleeve 21 causes the self-adjusting sleeve 22 to rotate outward.

[0040] Specifically, the connecting sleeve 31 has an installation hole 312, the inner diameter of which is adapted to the outer diameter of the inner adjusting rod 23, and a guide ball 313 that is inserted into the guide groove 231 is provided in the installation hole 312.

[0041] Working principle: When it is necessary to connect the web members in the two crossbars 1, since some web members are set at an angle and some are set at a height, the self-adjusting sleeve 22 is rotated according to the length of the web members set at a height and angle, so that it gradually shrinks inward, and the length of the fixed threaded sleeve 21 and the self-adjusting sleeve 22 changes, which is suitable for web members of different lengths.

[0042] After adjustment, select a suitable through hole and insert the internal thread stop 211. At this time, the internal thread stop 211 is also located in the mating groove 222. The internal thread stop 211 matches the groove in the internal locking block 221. Insert the connecting sleeve 31 at one end of the web rod into the self-adjusting sleeve 22. During the insertion of the web rod, the external locking block 311 on the connecting sleeve 31 and the internal locking block 221 in the self-adjusting sleeve 22 need to be inserted in a staggered manner (specifically: the center line of the external locking block 311 is aligned with the center line of the smooth inner wall of the self-adjusting sleeve 22 and slidably inserted). During the continued insertion, the position of the guide ball 313 matches the position of the guide groove. During the insertion of the connecting sleeve 31, the guide ball 313 also moves along the guide groove 231. During the process, when the connecting sleeve 31 can no longer be inserted, it means that the guide ball 313 has moved to the end of the guide groove 231. Similarly, the fixing threaded sleeve 21 on the other cross frame 1 is then inserted into the other end of the connecting sleeve 31. After both ends are inserted, the self-adjusting sleeve 22 is manually restricted and the connecting sleeve 31 is rotated. The rotation of the connecting sleeve 31 will drive the outer locking block 311 to rotate. At this time, the outer locking block 311 moves into the groove of the inner locking block 221. The outer locking block 311 and the inner locking block 221 engage with each other to complete the locking. Because the length of the guide groove 231 and the distance of the rotation groove 232 are set, the insertion depth and rotation angle of the connecting sleeve 31 are limited during the insertion process, thereby ensuring the connection effect.

[0043] During use, under load, relative sliding (i.e., continuous inward contact) may occur. With this sliding, the contact between the inner locking block 221 and the outer locking block 311 deteriorates, resulting in a slight gap. If this gap is too large, the web rod will cause the guide ball 313 to move inward during relative sliding. The guide ball 313 then moves along the guide spiral groove 233, causing the self-adjusting sleeve 22 to rotate. However, the rotation of the self-adjusting sleeve 22 is restricted by the threads of the fixing threaded sleeve 21, causing it to rotate outward. When the fixing threaded sleeve 21 rotates outward, the inner locking... The inner locking block 221 and the outer locking block 311 re-engage, thereby reducing their sliding gap (although there is sliding wear during use, the actual wear is relatively small, and the specific adjustable amount is the tilt height of the inner locking block 221). Since the back of the outer locking block 311 is always in contact with the inner threaded stop 211, the actual position of the self-adjusting sleeve 22, that is, the outward movement, is always limited, controlling its inward movement, thereby reducing the relative sliding amount and completing the self-adjusting effect. During the later inspection, it is only necessary to judge whether the position of the self-adjusting sleeve 22 has changed, which is convenient for inspection.

[0044] Finally, it should be noted that during use, the internal self-adjusting sleeve 22 will rotate to a certain extent. Therefore, the width of the mating groove 222 opened on the self-adjusting sleeve 22 needs to be greater than the width of the internal threaded stop block 211 inserted therein, so as to ensure that it can rotate when gaps appear later.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel structure building connection device, comprising a crossbeam (1), characterized in that; It also includes a web member to strengthen the crossbar (1), a connecting mechanism (2) for quickly connecting the crossbar (1) and the web member and preventing loosening, an installation block (3) is provided at the end of the web member, and the web member and the connecting mechanism (2) are connected by an external docking mechanism. The external docking mechanism includes an installation block (3) provided at the end of the web member and a connecting sleeve (31) provided on the outer surface of the installation block (3). An external locking block (311) is provided on the connecting sleeve (31). The connecting mechanism (2) includes a fixed threaded sleeve (21) and a self-adjusting sleeve (22) disposed in the fixed threaded sleeve (21), and an inner adjusting rod (23) is disposed in the self-adjusting sleeve (22), and a number of internal threaded blocks (211) are disposed through the fixed threaded sleeve (21). The inner adjusting rod (23) is set on the end face of the self-adjusting sleeve (22). The inner adjusting rod (23) is provided with a guide groove (231), a rotating groove (232) and a guide spiral groove (233) from the outside to the inside. The rotating groove (232) is opened at an angle of 180°. The transition section between the guide groove (231) and the rotating groove (232) is an arc transition. The transition section between the rotating groove (232) and the guide spiral groove (233) is an arc transition. The spiral tilt angle of the guide spiral groove (233) is greater than 70°. The position of the guide groove (231) corresponds to the end position of the inner locking block (221). The connecting sleeve (31) has an installation hole (312), and the inner diameter of the installation hole (312) is compatible with the outer diameter of the inner adjusting rod (23). A guide ball (313) is provided in the installation hole (312) and is inserted into the guide groove (231).

2. The steel structure building connection device according to claim 1, characterized in that; The outer card assembly (311) has a toothed cross-section and is partially set around the outer connecting sleeve (31) at an angle of 180°.

3. A steel structure building connection device according to claim 1, characterized in that; The self-adjusting sleeve (22) is threadedly connected to the fixed threaded sleeve (21), and the self-adjusting sleeve (22) has several mating grooves (222) that mate with the internal threaded stop (211). The diameter of the mating groove (222) is larger than the diameter of the internal threaded stop (211). A set of internal locking blocks (221) is provided on the inner surface of the self-adjusting sleeve (22), and the locking blocks are partially set around the inner surface of the self-adjusting sleeve (22) at an angle of 180°.

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