Embedded hub node bolt lock device

Abstract

The utility model discloses a kind of embedded hub node bolt anti-loose locking device, it is related to hub joint technical field, including hub, the hub is connected with multiple embedding seats, the embedding seat extends to the outside of hub and is fixedly connected with chord bar;The upper and lower ends of the hub are connected with cover plate, the cover plate extends into hub and is matched with embedding seat, the center of the hub is threadedly connected with bolt, locking mechanism is set on the cover plate and bolt;The locking mechanism includes first lock washer, second lock washer and nut, the first lock washer and second lock washer are sleeved on bolt, and first lock washer is connected with cover plate, the first lock washer and second lock washer surface are provided with conical clamping groove.The utility model can significantly improve the stability and service life of hub joint by the above technical scheme.

Description

Technical Field

[0001] This utility model relates to the field of hub joint technology, specifically to an embedded hub joint bolt anti-loosening locking device. Background Technology

[0002] The embedded hub joint bolt anti-loosening locking device is a high-performance anti-loosening device specifically designed for spatial grid structures such as single-layer spherical and cylindrical reticulated shells. Through multiple locking mechanisms, it ensures that the hub joint connection remains tight under dynamic loads such as vibration and impact. Based on the special structure of the embedded hub joint and combined with advanced anti-loosening technology, this device effectively solves the engineering problem of easy loosening of traditional bolted connections in large-span spatial structures.

[0003] Traditional bolted connections often struggle to maintain a stable tightness over extended periods when faced with the complex mechanical environments of large-span spatial structures. Under repeated dynamic loads such as vibration and impact, bolts are prone to loosening. This not only reduces the overall stability and safety of the structure but can also trigger a series of chain reactions, causing incalculable losses to the entire project. Utility Model Content

[0004] The purpose of this invention is to provide an embedded hub node bolt anti-loosening locking device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An embedded hub joint bolt anti-loosening locking device includes a hub body, a plurality of embedded seats connected inside the hub body, the embedded seats extending to the outside of the hub body and fixedly connected to a chord; cover plates are connected to the upper and lower ends of the hub body, the cover plates extending into the hub body and cooperating with the embedded seats, a bolt is threaded to the center of the hub body, and a locking mechanism is provided on the cover plates and the bolt; the locking mechanism includes a first anti-loosening washer, a second anti-loosening washer, and a nut.

[0006] A further improvement of the present invention is that the first anti-loosening washer and the second anti-loosening washer are fitted onto the bolt, and the first anti-loosening washer is connected to the cover plate. The surfaces of the first anti-loosening washer and the second anti-loosening washer are provided with conical grooves.

[0007] A further improvement of this utility model is that: a positioning block is provided on the surface of the second anti-loosening washer, a slot is provided on the side wall of the nut, the slot and the positioning block cooperate, a groove is provided on the inner ring of the nut, and a locking key is provided on the surface of the second anti-loosening washer that cooperates with the locking groove.

[0008] A further improvement of this utility model is that: a clamping seat is sleeved on the outer wall of the bolt, a threaded seat is provided above the clamping seat, the threaded seat and the bolt are threadedly connected, and the surfaces of the clamping seat and the threaded seat are both set in a conical shape and cooperate with each other.

[0009] A further improvement of this utility model is that: the surface of the clamping seat is provided with multiple strip grooves, the top of the bolt is provided with a through hole, a steel wire passes through the through hole, and the steel wire connects multiple bolts through the through hole.

[0010] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides an embedded hub joint bolt anti-loosening locking device. Through its unique embedded design and multi-layered anti-loosening locking structure, this device effectively solves the loosening problem that traditional hub joint bolts are prone to during vibration or long-term use. Specifically, the stable connection between the embedded seat and the chord, combined with the tight fit between the cover plate and the hub body, provides a solid foundation for the entire device. The synergistic effect of the first anti-loosening washer, the second anti-loosening washer, and the nut in the locking mechanism, especially the precise fit of the conical groove, the positioning block and the slot, and the groove and the key, further enhances the bolt's anti-loosening capability. Furthermore, the conical surface design of the clamping seat and the threaded seat, and the series locking of multiple bolts by steel wire through holes, ensure the bolt's stability from multiple dimensions, greatly improving the overall reliability and service life of the device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a schematic diagram of the clamping seat structure of this utility model.

[0012] In the diagram: 1. Hub; 2. Chord; 3. Embedded seat; 4. Cover plate; 5. Bolt; 6. First loosening washer; 7. Second loosening washer; 8. Positioning block; 9. Nut; 10. Slot; 11. Threaded seat; 12. Pressing seat; 13. Perforation; 14. Steel wire; 15. Slot; 16. Strip groove. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to embodiments: Example 1 like Figure 1-5 As shown, this utility model provides an embedded hub node bolt anti-loosening locking device, including a hub body 1, a plurality of embedded seats 3 connected inside the hub body 1, the embedded seats 3 extending to the outside of the hub body 1 and fixedly connected to a chord 2; cover plates 4 are connected to the upper and lower ends of the hub body 1, the cover plates 4 extend into the hub body 1 and cooperate with the embedded seats 3, the cover plates 4 are used to position the embedded seats 3 and restrict their movement, a bolt 5 is threadedly connected to the center of the hub body 1, and a locking mechanism is provided on the cover plate 4 and the bolt 5; the locking mechanism includes a first anti-loosening washer 6, a second anti-loosening washer 7 and a nut 9.

[0014] like Figure 3-5 As shown, the first anti-loosening washer 6 and the second anti-loosening washer 7 are fitted onto the bolt 5, and the first anti-loosening washer 6 is connected to the cover plate 4. The surfaces of the first anti-loosening washer 6 and the second anti-loosening washer 7 are provided with conical grooves.

[0015] The tapered grooves on the surfaces of the first anti-loosening washer 6 and the second anti-loosening washer 7 engage with each other. When the hub 1 encounters vibration, the tapered grooves on the surfaces of the first anti-loosening washer 6 and the second anti-loosening washer 7 engage with each other to prevent the bolt 5 from loosening.

[0016] like Figure 2-4 As shown, the surface of the second anti-loosening washer 7 is provided with a positioning block 8, the side wall of the nut 9 is provided with a slot 10, the slot 10 and the positioning block 8 are engaged, the inner ring of the nut 9 is provided with a groove 15, and the surface of the second anti-loosening washer 7 is provided with a locking key that engages with the groove 15.

[0017] Meanwhile, the positioning block 8 on the second anti-loosening washer 7 fits tightly with the slot 10 on the side wall of the nut 9. This design further restricts the rotation of the nut 9 and enhances the anti-loosening effect of the bolt 5. Moreover, the groove 15 on the inner ring of the nut 9 matches the locking key on the second anti-loosening washer 7. When the nut 9 is tightened, the locking key is embedded in the groove 15, forming a mechanical interlock, which effectively prevents the nut 9 from loosening on its own under vibration.

[0018] like Figure 3 As shown, a clamping seat 12 is sleeved on the outer wall of the bolt 5, and a threaded seat 11 is provided above the clamping seat 12. The threaded seat 11 and the bolt 5 are threadedly connected. The surfaces of the clamping seat 12 and the threaded seat 11 are both tapered and fit together.

[0019] The clamping seat 12 sleeved on the outer wall of bolt 5 and the threaded seat 11 above it cooperate with each other through a tapered surface. This tapered cooperation design not only increases the contact area and disperses the pressure, but also ensures that the clamping seat 12 and the threaded seat 11 can maintain a tight contact during vibration and are not prone to relative movement, thereby further ensuring the stability of bolt 5.

[0020] like Figure 1 , 3 As shown in Figure 5, the surface of the clamping seat 12 is provided with multiple strip grooves 16, and the top of the bolt 5 is provided with a through hole 13. A steel wire 14 passes through the through hole 13, and the steel wire 14 connects multiple bolts 5 through the through hole 13.

[0021] The multiple slots 16 on the surface of the clamping seat 12 allow the clamping seat 12 to deform more easily when the tapered surfaces on the threaded seat 11 and the clamping seat 12 engage with each other. This makes the clamping seat 12 and the bolt 5 fit together tightly. The steel wire 14 passing through the through hole 13 at the top of the bolt 5 connects the multiple bolts 5 together through the through hole 13, forming an integral structure. This design allows the bolts 5 to support each other and resist the loosening force caused by vibration, greatly improving the reliability and stability of the entire hub joint bolt anti-loosening locking device.

[0022] The working principle of this embedded hub joint bolt anti-loosening locking device is explained in detail below. The device relies primarily on its unique structural design to achieve the anti-loosening function of bolt 5. When the device is subjected to external forces such as vibration, firstly, the conical grooves on the surfaces of the first anti-loosening washer 6 and the second anti-loosening washer 7 interlock, effectively preventing the bolt 5 from loosening due to vibration. Simultaneously, the positioning block 8 on the second anti-loosening washer 7 tightly engages with the slot 10 on the side wall of the nut 9, restricting the rotation of the nut 9 and further enhancing the anti-loosening effect of bolt 5. Furthermore, the groove 15 on the inner ring of the nut 9 and the locking key on the second anti-loosening washer 7 form a mechanical interlock. When the nut 9 is tightened, the locking key embeds into the groove 15, effectively preventing the nut 9 from loosening on its own under vibration.

[0023] Furthermore, the clamping seat 12 fitted onto the outer wall of bolt 5 and the threaded seat 11 above it engage with each other through a tapered surface. This design not only increases the contact area and disperses pressure, but also ensures that the clamping seat 12 and the threaded seat 11 maintain close contact during vibration, preventing relative movement and thus guaranteeing the stability of bolt 5. Multiple slots 16 on the surface of the clamping seat 12 make it easier for the clamping seat 12 to deform under pressure, thus fitting tightly with bolt 5 and improving the anti-loosening effect. The steel wire 14 passing through the through hole 13 at the top of bolt 5 connects multiple bolts 5 together, forming a unified structure. This design allows the bolts 5 to support each other and jointly resist the loosening force caused by vibration, greatly improving the reliability and stability of the entire hub joint bolt anti-loosening locking device.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An embedded hub joint bolt anti-loosening locking device, comprising a hub body (1), characterized in that: The hub (1) is connected to a plurality of inserts (3), the inserts (3) extend to the outside of the hub (1) and are fixedly connected to a chord (2). The upper and lower ends of the hub (1) are connected to cover plates (4), the cover plates (4) extend into the hub (1) and cooperate with the insert (3), the center of the hub (1) is threaded with bolts (5), and the cover plates (4) and bolts (5) are provided with locking mechanisms. The locking mechanism includes a first anti-loosening washer (6), a second anti-loosening washer (7), and a nut (9).

2. The embedded hub joint bolt anti-loosening locking device according to claim 1, characterized in that: The first anti-loosening washer (6) and the second anti-loosening washer (7) are fitted onto the bolt (5), and the first anti-loosening washer (6) is connected to the cover plate (4). The surfaces of the first anti-loosening washer (6) and the second anti-loosening washer (7) are provided with conical grooves.

3. The embedded hub joint bolt anti-loosening locking device according to claim 1, characterized in that: The second anti-loosening washer (7) has a positioning block (8) on its surface, and the nut (9) has a slot (10) on its side wall. The slot (10) and the positioning block (8) cooperate. The inner ring of the nut (9) has a retaining groove (15). The surface of the second anti-loosening washer (7) has a retaining key that cooperates with the retaining groove (15).

4. The embedded hub joint bolt anti-loosening locking device according to claim 1, characterized in that: A clamping seat (12) is fitted on the outer wall of the bolt (5), and a threaded seat (11) is provided above the clamping seat (12). The threaded seat (11) and the bolt (5) are threaded together. The surfaces of the clamping seat (12) and the threaded seat (11) are both tapered and fit together.

5. The embedded hub joint bolt anti-loosening locking device according to claim 4, characterized in that: The surface of the clamping seat (12) is provided with multiple strip grooves (16), and the top of the bolt (5) is provided with a through hole (13). A steel wire (14) passes through the through hole (13), and the steel wire (14) connects multiple bolts (5) through the through hole.

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