A detachable anti-slippage connecting node structure of a full-bolt connecting angle steel tower

Abstract

The application discloses a detachable and recyclable anti-slippage connecting node structure of a full-bolt connecting angle steel tower, and belongs to the technical field of angle steel tower connecting. The connecting plate unit comprises a node plate used for being attached to two adjacent angle steel plates in the angle steel tower, and a plurality of groups of perforation unit are formed in the node plate and comprise a giving-way perforation symmetrically formed in the node plate. When the connecting node structure is used for connecting and fixing two adjacent angle steel plates on the angle tower, the two cover shells are attached to the node plate, at the moment, the inner positioning nut, the outer positioning nut and the elastic connecting component are located in the cover shell, in high-temperature weather, the cover shell can effectively block the external heat from being transmitted to the screw rod and the nut, so that the temperature fluctuation of the screw rod and the nut is slowed down, the gap change caused by the cold and hot deformation is reduced, the threaded pretightening force is stabilized, and the slippage of the threaded contact surface is inhibited.

Description

Technical Field

[0001] This invention relates to the field of angle steel tower connection technology, and more specifically, to a detachable, recyclable, anti-slip connection node structure for an all-bolted angle steel tower. Background Technology

[0002] With the rapid development of ultra-high voltage and extra-high voltage power transmission projects, the application of transmission angle steel towers is becoming increasingly widespread. All-bolted angle steel towers offer advantages such as high assembly efficiency, disassembly and recycling, and no welding required, making them suitable for the construction, renovation, and recycling needs of transmission towers, and have become the mainstream tower structure. However, these towers operate under complex outdoor conditions for extended periods, and are susceptible to factors such as wind load vibration, conductor galloping, and alternating temperature differences. This can cause the connecting bolts to loosen, resulting in reduced node stiffness and structural deformation. In severe cases, this can lead to tower instability and jeopardize the safe operation of the power grid.

[0003] Currently, most detachable nodes of fully bolted angle steel towers adopt conventional bolt and nut locking structures. The industry mainly improves the anti-loosening performance by adding anti-slip pads, double nut locking, and optimizing bolt preload and thread accuracy, which can only meet the basic connection requirements under normal working conditions.

[0004] However, the bolts and nuts in the connection point structure are completely exposed to the external environment without protective structures. Under the influence of temperature changes, they are prone to thermal deformation. As a result, the bolts in the connection point structure, which are exposed to the outdoor environment for a long time, are susceptible to thermal expansion and contraction, leading to changes in thread fit clearance, preload reduction, and contact surface slippage, which reduces the stability of node positioning. At the same time, the traditional double-nut fitting installation has no heat dissipation gap. Under high temperature conditions, the heat from the inner and outer nuts cannot be dissipated in time, making the thermal expansion effect of the nuts more prominent. This further aggravates the thread fit distortion and preload loss, resulting in poor anti-slip and anti-loosening durability of the node, which makes it difficult to meet the high reliability and long service life requirements of ultra-high voltage and extra-high voltage towers.

[0005] In view of this, we propose a detachable, recyclable, anti-slip connection node structure for a fully bolted angle steel tower. Summary of the Invention

[0006] Technical problems to be solved The purpose of this invention is to provide a detachable, recyclable, anti-slip connection node structure for a fully bolted angle steel tower, which solves the technical problems mentioned in the background art. Technical solution

[0007] The present invention provides a detachable and recyclable anti-slip connection node structure for a fully bolted angle steel tower, including a connection plate unit, and a bolt assembly unit and a cover assembly unit installed on the connection plate unit; The connecting plate unit includes a node plate for fitting with two adjacent angle steel plates in the angle steel tower. The node plate has multiple sets of perforated units, including symmetrically arranged clearance perforations on the node plate. The bolt assembly unit includes multiple bolt assembly units, each corresponding to a different perforation assembly unit. Each bolt assembly unit includes a screw rod that movably passes through two of the clearance perforations, and the screw rod can movably pass through the angle steel plate. A spring washer that can fit against the node plate is movably sleeved on the outside of the screw rod. A nut assembly unit is installed on the outside of the screw rod, which includes an inner positioning nut and an outer positioning nut that are threaded on the outside of the screw rod. An elastic connecting component is provided between the inner positioning nut and the outer positioning nut. The diaphragm assembly unit includes multiple sets of positioning components mounted on the node plate. Each set of positioning components corresponds to a set of bolt units. The end of the positioning component is equipped with a diaphragm component. When the diaphragm component is sleeved on the outside of two sets of nut units in the same set of bolt units and is in contact with the node plate, the positioning components can fix the diaphragm component and the node plate.

[0008] Preferably, the elastic connection component includes a spring telescopic rod and an annular plate. The inner positioning nut has two horizontally symmetrically mounted spring telescopic rods on one side. The other ends of the two spring telescopic rods are fixedly connected to an annular plate that can be movably sleeved on the outside of the screw. The side of the annular plate away from the spring telescopic rod is coaxially rotatably connected to the side wall of the outer positioning nut.

[0009] Preferably, the positioning component includes a connecting stud, a threaded sleeve, and a fixing plate. A horizontally oriented connecting stud is installed on the node plate on the opposite sides of two clearance holes located in the same group of perforation units. The connecting stud is threaded with a threaded sleeve on its outer thread. The threaded sleeve is rotatably connected to the outer side of the fixing plate. The cover component is installed on the fixing plate.

[0010] Preferably, the cover component includes two covers symmetrically mounted on the fixed plate, and the two covers can be respectively fitted onto the outside of the two sets of nut units.

[0011] Preferably, elastic plates are symmetrically fixedly installed on the inner sidewall of the cover, and a ring is integrally formed on the side of the outer positioning nut away from the annular plate. When the cover is in contact with the node plate, the sides of the two elastic plates that are close to each other are in contact with the edge of the ring on the side away from the outer positioning nut.

[0012] Preferably, the cover is symmetrically equipped with sliding indicator components, and the two sets of sliding indicator components are respectively connected to two elastic plates. When the outer positioning nut slides and drives the elastic plates to deform, the sliding indicator components are displaced to the outside of the cover.

[0013] Preferably, the sliding indicator assembly includes an indicator rod, and an indicator perforation is provided on the side wall of the cover. The indicator rod moves through the indicator perforation and extends into the cover. A positioning ring is coaxially fixed to the outer side wall of the indicator rod. A return spring is installed between the positioning ring and the inner side wall of the cover, and is sleeved on the outside of the indicator rod. When the return spring is in its natural state, the end of the indicator rod is flush with the outer side wall of the cover, and the indicator rod is in contact with the elastic sheet.

[0014] Preferably, the end of the spring telescopic rod away from the annular plate is integrally formed with a snap-fit ​​rod, and the side wall of the inner positioning nut is symmetrically provided with snap-fit ​​holes. The two snap-fit ​​rods can be inserted into the two snap-fit ​​holes respectively and snap-fit ​​with the inner positioning nut.

[0015] Preferably, the node plate has multiple heat dissipation holes on its top and outside the clearance perforation, and the heat dissipation holes extend through the bottom of the node plate.

[0016] Preferably, the sidewall of the node plate has mounting holes on opposite sides of two clearance holes in the same perforation unit, and the mounting holes are connected to multiple heat dissipation holes. The end of the connecting stud is fixedly connected to a snap-fit ​​plate, which can be inserted into the mounting holes and snap-fit ​​with them. Beneficial effects

[0017] One or more technical solutions provided in this invention have at least the following technical effects or advantages: 1. When using this connection node structure to connect and fix two adjacent angle steel plates on an angle tower, both covers are in contact with the node plate. At this time, the inner positioning nut, the outer positioning nut, and the elastic connecting component are located inside the cover. In hot weather, the cover can effectively block the external heat from being transferred to the screw and nut, thereby helping to reduce the temperature fluctuation of the screw and nut, reduce the gap changes caused by thermal deformation, stabilize the thread preload, inhibit the slippage of the thread contact surface, and improve the positioning stability at the connection point. In addition, the cover can protect the threaded parts from dust and moisture corrosion, thereby effectively avoiding thread corrosion and wear, ensuring a tight fit of the thread meshing surface, and thus helping to improve the anti-slip performance between the screw and nut.

[0018] 2. After the external positioning nut is installed, both spring telescopic rods are compressed to their limit. The spring telescopic rods are located between the inner and outer positioning nuts, separating them and leaving ventilation space between them. This facilitates heat dissipation from the inner and outer positioning nuts, helps alleviate thermal expansion, maintains the stability of the threaded fit, and improves the anti-slip effect of the connection point structure.

[0019] 3. After the two covers in the partition component are respectively fitted onto the outside of the two screws in the same bolt group unit, the sides of the two elastic plates that are close to each other are in contact with the edge of the ring away from the outer positioning nut, thereby achieving the effect of pressing the outer positioning nut. By pressing the edge of the matching outer positioning nut on the screw, the circumferential rotational freedom of the outer positioning nut is restricted, preventing the outer positioning nut from rotating and slipping relative to the screw, and further improving the anti-slip performance between the screw and the outer positioning nut.

[0020] 4. Through the design of the sliding indicator component, during long-term service of the angle steel tower, under the influence of long-term wind load vibration, conductor galloping, and temperature changes, the nut and bolt connections may loosen. When the outer positioning nut rotates and slips relative to the screw, the outer positioning nut abuts against the two elastic plates, causing the two elastic plates to deform. This pushes the two indicator rods to slide outward from the casing, so that the ends of the two indicator rods are displaced to the outside of the casing. Therefore, when the staff regularly checks the looseness of the nut and bolt connections in the connection point structure of the angle steel tower, they can quickly determine whether the outer positioning nut has slipped by observing the position of the two indicator rods. This eliminates the need to disassemble the casing component unit, thus facilitating the subsequent maintenance and repair of the angle steel tower.

[0021] 5. Through the cooperation of the elastic sheet and the sliding indicator assembly, when the two covers in the partition component are respectively fitted outside the two screws in the same bolt group unit, if the outer positioning nut is not turned to the designated position on the screw, when the cover is in contact with the node plate, the outer positioning nut abuts against the two elastic sheets, pushing the two indicator rods to slide outwards from the cover, so that the ends of the two indicator rods are displaced to the outside of the cover. This achieves the effect of detecting the installation position of the outer positioning nut when installing the cover, thereby ensuring that the outer positioning nut can be installed in place during the assembly operation of the structure at this connection point.

[0022] 6. By setting up heat dissipation holes, a heat dissipation channel is formed inside the node plate. The heat dissipation holes increase the contact area between the node plate and the air, accelerating the dissipation of heat from the node plate itself, thereby reducing the temperature of the node plate and reducing the heat conducted from the node plate to the bolt assembly unit. This helps to alleviate the thermal expansion deformation caused by the heating of the screw and nut, thereby helping to reduce the magnitude of changes in the threaded pair clearance, stabilizing the preload state between the screw and nut, further helping to suppress relative slippage of the thread meshing surface, and further helping to improve the anti-slip performance between the screw and nut. In addition, the mounting holes are connected to multiple heat dissipation holes, which creates air convection inside the node plate, further improving the heat dissipation effect of the node plate. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the installation structure of the present invention.

[0024] Figure 2 For the present invention Figure 1 A magnified schematic diagram of a portion of the structure in section A.

[0025] Figure 3 This is a schematic diagram of the connecting plate unit of the present invention.

[0026] Figure 4 This is a schematic diagram of the bolt assembly unit of the present invention.

[0027] Figure 5 This is a schematic diagram of the installation structure of the elastic connection component of the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of the diaphragm assembly unit of the present invention.

[0029] Figure 7 This is a schematic diagram of the installation structure of the elastic sheet of the present invention.

[0030] Figure 8 For the present invention Figure 7 A magnified schematic diagram of a local structure in section B.

[0031] Explanation of the labels in the diagram: 1. Connecting plate unit; 11. Node plate; 111. Heat dissipation hole; 112. Mounting clip hole; 12. Clearance through hole; 2. Bolt assembly unit; 21. Screw; 22. Inner positioning nut; 221. Snap-fit ​​hole; 23. Outer positioning nut; 231. Ring; 24. Elastic connecting component; 241. Spring telescopic rod; 2411. Snap-fit ​​rod; 242. Ring plate; 25. Spring washer; 3. Cover assembly unit; 31. Positioning component; 311. Connecting stud; 312. Threaded sleeve; 313. Fixing plate; 32. Cover component; 321. Cover; 4. Angle steel plate; 5. Elastic sheet; 6. Sliding indicator assembly; 61. Indicator rod; 62. Positioning ring; 63. Return spring; 7. Snap-fit ​​plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0034] 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 according to the specific circumstances.

[0035] Example 1, refer to Figures 1-8 The first embodiment of the present invention provides a detachable and recyclable anti-slip connection node structure for a fully bolted angle steel tower, including a connection plate unit 1, and a bolt assembly unit 2 and a cover assembly unit 3 installed on the connection plate unit 1; The connecting plate unit 1 includes a node plate 11 for fitting with two adjacent angle steel plates 4 in the angle steel tower. The node plate 11 has multiple sets of perforated units, including symmetrically arranged clearance perforations 12 on the node plate 11. The bolt assembly unit 2 includes multiple bolt assembly units, each corresponding to a different set of through-hole assembly units. Each bolt assembly unit includes a screw 21 that movably passes through two of the clearance through-holes 12. The screw 21 can movably pass through the angle steel plate 4. Specifically, the angle steel plate 4 has a positioning through-hole, and the screw 21 movably passes through the positioning through-hole on the angle steel plate 4. A spring washer 25 that can fit against the node plate 11 is movably sleeved on the outside of the screw 21. A nut assembly unit is installed on the outside of the screw 21, which includes an inner positioning nut 22 and an outer positioning nut 23 threaded on the outside of the screw 21. An elastic connecting component 24 is provided between the inner positioning nut 22 and the outer positioning nut 23. The partition assembly unit 3 includes multiple sets of positioning components 31, each mounted on the node plate 11. Each set of positioning components 31 corresponds to a set of bolt units. A partition component 32 is mounted on the end of each positioning component 31. When the partition component 32 is sleeved on the outside of two sets of nut units in the same set of bolt units and is in contact with the node plate 11, the positioning components 31 can fix the partition component 32 to the node plate 11. The elastic connecting component 24 includes a spring telescopic rod 241 and an annular plate 242. The inner positioning nut 22 has two horizontally mounted spring telescopic rods 241 on one side. The other ends of the two spring telescopic rods 241 are fixedly connected to an annular plate 242 that can be movably sleeved outside the screw 21. The side of the annular plate 242 away from the spring telescopic rod 241 is coaxially rotatably connected to the side wall of the outer positioning nut 23. The positioning component 31 includes a connecting stud 311, a threaded sleeve 312, and a fixing plate 313. The node plate 11 has two horizontally oriented connecting studs 311 installed on opposite sides of two clearance holes 12 located in the same group of through holes. The threaded sleeve 312 is threaded onto the outside of the connecting stud 311. The fixing plate 313 is rotatably connected to the outside of the threaded sleeve 312. The cover component 32 is installed on the fixing plate 313. The shroud component 32 includes a cover 321 symmetrically mounted on the fixing plate 313. The cover 321 is made of heat-insulating material, and the two covers 321 can be respectively fitted onto the outside of the two sets of nut assembly units. The end of the spring telescopic rod 241 away from the annular plate 242 is integrally formed with a snap-fit ​​rod 2411, and the side wall of the inner positioning nut 22 is symmetrically provided with snap-fit ​​holes 221. The two snap-fit ​​rods 2411 can be inserted into the two snap-fit ​​holes 221 respectively and snap-fit ​​with the inner positioning nut 22.

[0036] During use, when connecting and fixing two adjacent angle steel plates 4 on the diagonal tower using this node plate 11, the node plate 11 is made to fit against the angle steel plate 4 to be fixed, and the multiple positioning holes on the angle steel plate 4 correspond one-to-one with the partial clearance holes 12 in the node plate 11. The screw 21 is passed through the positioning holes on the angle steel plate 4 and the corresponding clearance holes 12 on the node plate 11. A spring washer 25 is fitted on the outside of the screw 21. The inner positioning nut 22 is threaded onto the outside of the screw 21 and tightened. The spring washer 25 is flattened. At this time, the screw 21 and the inner positioning nut 22 are threadedly engaged to generate a preload force. Under the action of this preload force, the angle steel plate 4 and the node plate 11 are pressed together, thus achieving the fixation between the angle steel plate 4 and the node plate 11. Next, the annular plate 242 is fitted onto the outside of the screw 21, and the locking rods 2411 at the ends of the two spring telescopic rods 241 are respectively inserted into the locking holes 221 on the inner positioning nut 22, so that the outer positioning nut 23 engages with the screw 21. Then, the outer positioning nut 23 is turned to engage with the thread of the screw 21, and the two locking rods 2411 are locked with the inner positioning nut 22, thereby positioning the annular plate 242. At this time, during the turning of the outer positioning nut 23, the outer positioning nut 23 rotates with the annular plate 242, and the annular plate 242 applies a resisting force to the two spring telescopic rods 241, so that the two spring telescopic rods 241 are compressed to their limit state. Then, the locking plate 7 is inserted into the inside of the mounting hole 112 through the open end, and the locking plate 7 is rotated by the connecting stud 311, so that the locking plate 7 is locked with the node plate 11, and the two covers 321 in the partition component 32 are respectively fitted onto the same The two screws 21 in the bolt assembly unit are externally positioned so that the threaded sleeve 312 and the connecting stud 311 are threadedly engaged. Then, the threaded sleeve 312 is rotated, and the two covers 321 are displaced through the fixing plate 313, so that both covers 321 are in contact with the node plate 11. At this time, the inner positioning nut 22, the outer positioning nut 23 and the elastic connecting component 24 are located inside the cover 321. In hot weather, the cover 321 can effectively block the external heat from being transferred to the screws 21 and nuts, thereby helping to reduce the temperature fluctuations of the screws 21 and nuts, reduce the gap changes caused by thermal deformation, stabilize the thread preload, inhibit the slippage of the thread contact surface, and improve the positioning stability at the connection point. In addition, the cover 321 can protect the threaded parts from dust and moisture corrosion, thereby effectively avoiding thread corrosion and wear, ensuring that the thread meshing surfaces are tightly fitted, thus helping to improve the anti-slip performance between the screws 21 and nuts.

[0037] In the above description, after the external positioning nut 23 is threadedly installed, both spring telescopic rods 241 are compressed to their limit. The spring telescopic rods 241 are located between the inner positioning nut 22 and the outer positioning nut 23. The spring telescopic rods 241 separate the inner positioning nut 22 and the outer positioning nut 23, leaving ventilation space between the two nuts. This helps to dissipate heat from the inner positioning nut 22 and the outer positioning nut 23, which helps to alleviate the thermal expansion of the two nuts and helps to maintain the stability of the threaded fit, thereby improving the anti-slip effect of this connection point structure. Furthermore, after the external positioning nut 23 is installed, both spring telescopic rods 241 are compressed to their limit. At this time, the two spring telescopic rods 241 continuously push the inner positioning nut 22 and the outer positioning nut 23 outward, so that the threads of the inner positioning nut 22 and the outer positioning nut 23 are always tightly attached to the corresponding tooth surface of the thread on the screw 21, eliminating the thread fit clearance. This effectively prevents the inner positioning nut 22 and the outer positioning nut 23 from loosening and slipping under vibration conditions, further helping to improve the anti-slip effect of this connection point structure.

[0038] Example 2, refer to Figures 7-8 This is the second embodiment of the present invention, which differs from the first embodiment in that: The inner wall of the cover 321 is symmetrically fixed with elastic pieces 5, and the outer positioning nut 23 is integrally formed with a ring 231 on the side away from the annular plate 242. When the cover 321 is in contact with the node plate 11, the side of the two elastic pieces 5 that are close to each other is in contact with the edge of the ring 231 on the side away from the outer positioning nut 23. The cover 321 is symmetrically equipped with sliding indicator components 6. The two sets of sliding indicator components 6 are respectively connected to two elastic plates 5. When the outer positioning nut 23 slides and drives the elastic plate 5 to deform, the sliding indicator components 6 are displaced to the outside of the cover 321. The sliding indicator assembly 6 includes an indicator rod 61. An indicator perforation is provided on the side wall of the housing 321. The indicator rod 61 moves through the indicator perforation and extends into the housing 321. Specifically, the indicator rod 61 and the indicator perforation are in contact with each other. A positioning ring 62 is coaxially fixed to the outer side wall of the indicator rod 61. A return spring 63, sleeved on the outside of the indicator rod 61, is installed between the positioning ring 62 and the inner side wall of the housing 321. When the return spring 63 is in its natural state, the end of the indicator rod 61 is flush with the outer side wall of the housing 321, and the indicator rod 61 is in contact with the elastic plate 5. Specifically, the housing 321 is sleeved on the outside of the outer positioning nut 23 and is in contact with the node plate 11. When the two spring telescopic rods 241 are compressed to their limit, the elastic plate 5 is in contact with the edge of the ring 231 away from the outer positioning nut 23, and the return spring 63 is in its natural state. Specifically, it can be described as follows: Figure 8 As shown.

[0039] During use, after the two covers 321 in the partition component 32 are respectively fitted onto the outside of the two screws 21 in the same bolt group unit, the sides of the two elastic plates 5 that are close to each other are in contact with the edge of the ring 231 away from the outer positioning nut 23, thereby achieving the effect of pressing the outer positioning nut 23. By pressing the edge of the matching outer positioning nut 23 on the screw 21, the circumferential rotational freedom of the outer positioning nut 23 is restricted, preventing the outer positioning nut 23 from rotating and slipping relative to the screw 21, and further improving the anti-slip performance between the screw 21 and the outer positioning nut 23.

[0040] Through the design of the sliding indicator component 6, the cover 321 is fitted outside the outer positioning nut 23 and fits against the node plate 11. The elastic piece 5 fits against the edge of the ring 231 away from the outer positioning nut 23. The end of the indicator rod 61 is flush with the outer wall of the cover 321 and fits against the elastic piece 5. After using this connection point structure to connect and fix two adjacent angle steel plates 4 in the angle steel tower, after the angle steel tower is put into use, during the long-term service of the angle steel tower, under the influence of long-term wind load vibration, conductor galloping and temperature changes, the nut and bolt connection will loosen, causing the outer positioning nut 23 to loosen relative to the bolt. When rod 21 rotates and slips, the outer positioning nut 23 abuts against the two elastic plates 5, causing the two elastic plates 5 to deform. This pushes the two indicator rods 61 to slide outward from the cover 321, so that the ends of the two indicator rods 61 are displaced to the outside of the cover 321. Thus, when the staff periodically checks the looseness of the nuts and bolts in the connection point structure of the angle steel tower, they can quickly determine whether the outer positioning nut 23 has slipped by observing the position of the two indicator rods 61. This eliminates the need to disassemble the cover assembly unit 3, thereby facilitating the later maintenance and repair of the angle tower. Furthermore, through the cooperation of the elastic sheet 5 and the sliding indicator assembly 6, when the two covers 321 in the partition component 32 are respectively fitted onto the outside of the two screws 21 in the same bolt group unit, if the outer positioning nut 23 is not turned to the designated position on the screw 21, when the cover 321 is in contact with the node plate 11, the outer positioning nut 23 abuts against the two elastic sheets 5, pushing the two indicator rods 61 to slide outward from the cover 321 respectively, so that the ends of the two indicator rods 61 are displaced to the outside of the cover 321. This achieves the effect of detecting the installation position of the outer positioning nut 23 when the cover 321 is installed, thereby ensuring that the outer positioning nut 23 can be installed in place during the assembly operation of the connection point structure.

[0041] The remaining structure is the same as that in Example 1.

[0042] Example 3, referring to Figures 1-8This is the third embodiment of the present invention, which differs from the second embodiment in that: The node plate 11 has a plurality of heat dissipation holes 111 on its top and outside the clearance hole 12, and the heat dissipation holes 111 penetrate the bottom of the node plate 11. The sidewall of the node plate 11 has mounting holes 112 on opposite sides of two clearance holes 12 in the same perforation unit. The longitudinal section of the mounting holes 112 is T-shaped and is connected to multiple heat dissipation holes 111. The end of the connecting stud 311 is fixedly connected to a snap-fit ​​plate 7, which can be inserted into the mounting holes 112 and snap-fit ​​therewith.

[0043] During use, by setting heat dissipation holes 111, a heat dissipation channel is formed inside the node plate 11. The heat dissipation holes 111 increase the contact area between the node plate 11 and the air, accelerate the dissipation of heat from the node plate 11 itself, thereby reducing the temperature of the node plate 11 and reducing the heat conducted from the node plate 11 to the bolt assembly unit 2. This helps to alleviate the thermal expansion deformation caused by the heating of the screw 21 and the nut, thereby helping to reduce the magnitude of the change in the thread pair mating clearance, stabilizing the preload state between the screw 21 and the nut, further helping to suppress the relative slippage of the thread meshing surface, and further helping to improve the anti-slip performance between the screw 21 and the nut.

[0044] By utilizing the design of mounting holes 112 and snap-fit ​​plates 7, the connecting studs 311 are detachably connected to the node plate 11 via the snap-fit ​​plates 7. This facilitates the installation or removal of the diaphragm assembly unit 3 and also makes it easier to transport the diaphragm assembly unit 3. The node plate 11 is connected and fixed to the angle steel plate 4 only by bolt assembly unit 2, which facilitates the disassembly of the node plate 11 and achieves the purpose of detachable recycling of this connection point structure. Furthermore, the mounting holes 112 are connected to multiple heat dissipation holes 111, which allows air convection to form inside the node plate 11, further improving the heat dissipation effect of the node plate 11.

[0045] The remaining structure is the same as that in Example 2.

[0046] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detachable, recyclable, anti-slip connection node structure for an all-bolted angle steel tower, characterized in that: Includes a connecting plate unit, as well as a bolt assembly unit and a spacer assembly unit mounted on the connecting plate unit; The connecting plate unit includes a node plate for fitting with two adjacent angle steel plates in the angle steel tower. The node plate has multiple sets of perforated units, including symmetrically arranged clearance perforations on the node plate. The bolt assembly unit includes multiple bolt assembly units, each corresponding to a different perforation assembly unit. Each bolt assembly unit includes a screw rod that movably passes through two of the clearance perforations, and the screw rod can movably pass through the angle steel plate. A spring washer that can fit against the node plate is movably sleeved on the outside of the screw rod. A nut assembly unit is installed on the outside of the screw rod, which includes an inner positioning nut and an outer positioning nut that are threaded on the outside of the screw rod. An elastic connecting component is provided between the inner positioning nut and the outer positioning nut. The diaphragm assembly unit includes multiple sets of positioning components mounted on the node plate. Each set of positioning components corresponds to a set of bolt units. The end of the positioning component is equipped with a diaphragm component. When the diaphragm component is sleeved on the outside of two sets of nut units in the same set of bolt units and is in contact with the node plate, the positioning components can fix the diaphragm component and the node plate.

2. The detachable and recyclable anti-slip connection node structure of the all-bolted angle steel tower according to claim 1, characterized in that: The elastic connection component includes a spring telescopic rod and an annular plate. The inner positioning nut has two horizontally symmetrically mounted spring telescopic rods on one side. The other ends of the two spring telescopic rods are fixedly connected to an annular plate that can be movably sleeved on the outside of the screw. The side of the annular plate away from the spring telescopic rod is coaxially rotatably connected to the side wall of the outer positioning nut.

3. The detachable and recyclable anti-slip connection node structure of the all-bolted angle steel tower according to claim 2, characterized in that: The positioning component includes a connecting stud, a threaded sleeve, and a fixing plate. A horizontal connecting stud is installed on the node plate on the opposite side of two clearance holes in the same group of perforated units. The connecting stud is threaded with a threaded sleeve on its outer thread. The threaded sleeve is rotatably connected to the outside of the fixing plate. The cover component is installed on the fixing plate.

4. The detachable, recyclable, anti-slip connection node structure of the all-bolted angle steel tower according to claim 3, characterized in that: The shroud component includes two covers symmetrically mounted on a fixed plate, and the two covers can be respectively fitted onto the outside of two sets of nut units.

5. The detachable, recyclable, anti-slip connection node structure of the all-bolted angle steel tower according to claim 4, characterized in that: The inner wall of the cover is symmetrically fixed with elastic plates, and the outer positioning nut is integrally formed with a ring on the side away from the annular plate. When the cover is in contact with the node plate, the sides of the two elastic plates that are close to each other are in contact with the edge of the ring on the side away from the outer positioning nut.

6. The detachable, recyclable, anti-slip connection node structure of the all-bolted angle steel tower according to claim 5, characterized in that: The cover is symmetrically equipped with sliding indicator components. The two sets of sliding indicator components are respectively connected to two elastic plates. When the outer positioning nut slides and drives the elastic plates to deform, the sliding indicator components are displaced to the outside of the cover.

7. The detachable and recyclable anti-slip connection node structure of the all-bolted angle steel tower according to claim 6, characterized in that: The sliding indicator assembly includes an indicator rod. An indicator perforation is provided on the side wall of the housing. The indicator rod moves through the indicator perforation and extends into the housing. A positioning ring is coaxially fixed to the outer side wall of the indicator rod. A return spring is installed between the positioning ring and the inner side wall of the housing, and is sleeved on the outside of the indicator rod. When the return spring is in its natural state, the end of the indicator rod is flush with the outer side wall of the housing, and the indicator rod is in contact with the elastic sheet.

8. The detachable and recyclable anti-slip connection node structure of the all-bolted angle steel tower according to claim 7, characterized in that: The end of the spring telescopic rod away from the annular plate is integrally formed with a snap-fit ​​rod, and the side wall of the inner positioning nut is symmetrically provided with snap-fit ​​holes. The two snap-fit ​​rods can be inserted into the two snap-fit ​​holes respectively and snap-fit ​​with the inner positioning nut.

9. The detachable and recyclable anti-slip connection node structure of the all-bolted angle steel tower according to claim 3, characterized in that: The node plate has multiple heat dissipation holes on its top and outside the clearance perforation, and the heat dissipation holes extend through the bottom of the node plate.

10. The detachable, recyclable, anti-slip connection node structure of the all-bolted angle steel tower according to claim 9, characterized in that: The node plate has mounting holes on the sidewalls of the two clearance holes in the same perforation unit. The mounting holes are connected to multiple heat dissipation holes. The end of the connecting stud is fixedly connected to a snap-fit ​​plate, which can be inserted into the mounting hole and snap-fit ​​with it.

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