High-strength single-tube iron tower with fast dismounting and mounting nodes

Abstract

The application relates to the technical field of single-pipe iron towers, in particular to a high-strength single-pipe iron tower with a quick dismounting joint, which comprises a mother pipe, a son pipe is embeddedly connected to the upper surface of the mother pipe, a taper sleeve is fixedly connected to the upper surface of the mother pipe, a wedge core is fixedly connected to the lower surface of the son pipe, a mounting groove is formed in the outer surface of the taper sleeve, a guide locking mechanism is arranged in the mounting groove, the guide locking mechanism comprises a base, an arc-shaped retaining sleeve, an extrusion shaft and a nut, the base is fixedly connected to the inner surface of the mounting groove, when the extrusion shaft is pushed, the outer side of a push clamping plate is pushed, the inner side of the push clamping plate is clamped into a clamping groove, the wedge core is mechanically limited, double fixing is formed with wedge self-locking, connection loosening under dynamic wind load is prevented, a stud is hingedly connected with one end of a clamping spring reinforcing hoop, a hand wheel is rotated to adjust the opening degree, the clamping spring reinforcing hoop generates different pre-tightening forces, different diameter tower bodies are adapted, and the operation is performed manually without tools.

Description

Technical Field

[0001] This invention relates to the field of single-tube steel tower technology, specifically a high-strength steel single-tube steel tower with quick assembly and disassembly nodes. Background Technology

[0002] Single-tube towers, as core support structures for infrastructure such as power transmission lines and communication base stations, have advantages such as small footprint, low wind resistance coefficient, and aesthetically pleasing design, and are widely used in urban areas and complex terrains. Announcement No. CN218668780U describes a reinforcement device for an internally inserted single-tube tower, relating to the field of single-tube tower equipment technology. The device includes a lower tube section, a connecting section, and an upper tube section. The inner side of the upper end of the lower tube section is connected to one end of the connecting section. The top end of the lower tube section is connected to the bottom end of the upper tube section. A gap exists between the inner wall of the upper tube section and the outer wall of the other end of the connecting section. A reinforcement member is wedged into the gap, and both sides of the reinforcement member are respectively attached to the inner wall of the upper tube section and the outer wall of the connecting section. Although the above-mentioned device effectively reinforces the single-tube tower connection by adjusting the wedging depth of the reinforcement component in the gap and monitoring the verticality of the upper section of the pipe with the monitoring component, it is a remedial design after the fact. It is only suitable for reinforcing existing iron towers with existing joint gaps and cannot be applied to the rapid connection of newly built iron towers. Moreover, after the reinforcement component is wedged in, it can only be removed by special equipment such as dismantling structures, hydraulic cylinders, bases, and fasteners. The on-site operation is cumbersome and cannot achieve rapid disassembly and assembly of nodes. Summary of the Invention

[0003] The purpose of this invention is to provide a high-strength steel single-tube iron tower with quick assembly and disassembly nodes to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A high-strength steel single-tube iron tower with quick assembly and disassembly nodes includes a main tube, a daughter tube embedded and connected to the upper surface of the main tube, a conical sleeve fixedly connected to the upper surface of the main tube, and a wedge core fixedly connected to the lower surface of the daughter tube. The outer surface of the tapered sleeve has an installation groove, and the interior of the installation groove is equipped with a guide locking mechanism. The guide locking mechanism includes a base, an arc-shaped retaining sleeve, a pressing shaft, and a nut. The base is fixedly connected to the inner surface of the installation groove, the arc-shaped retaining sleeve is fixedly connected to the outer surface of the base, and steel balls are rotatably embedded in the adjacent surfaces of the arc-shaped retaining sleeve and the base. The pressing shaft is movably embedded in and connected to the outer surface of the base, and a spring is nested on the outer surface of the pressing shaft. The nut is threadedly connected to the rear end of the pressing shaft, and a limit protrusion is fixedly connected to the front end of the pressing shaft.

[0005] As a preferred embodiment of this invention: a boss is fixedly connected to the upper surface of the mother tube, and a guide groove is fixedly connected to the lower surface of the daughter tube, with the boss inserted into the guide groove. Its working principle includes the following steps: the boss inserts into the guide groove to form a nested guide structure. During assembly, the daughter tube's own weight is used to achieve gravity self-positioning, allowing the wedge core and cone sleeve to quickly align coaxially, reducing adjustment time during high-altitude operations. After the wedge core is inserted into the cone sleeve, the cone surfaces engage to create a wedge-shaped self-locking effect. A tight connection can be achieved by axial tapping, eliminating the need for bolt tightening. The clamping plate rotates around the pin shaft to form a ratchet structure. When the extrusion shaft is pushed forward, it pushes the outer side of the clamping plate, causing its inner side to engage in the clamping groove, mechanically limiting the wedge core and forming a double fixation with the wedge-shaped self-locking.

[0006] As a preferred embodiment of this invention: the wedge core is inserted into the inside of the cone sleeve, the outer surface of the wedge core is provided with a groove, the inside of the mounting groove is rotatably connected to a retaining plate, and the side surface of the retaining plate is embedded with a pin.

[0007] As a preferred embodiment of this invention: a retaining ring is nested on the outer surface of the cone sleeve and the wedge core, a buffer pad is fixedly connected to the inner surface of the retaining ring, anti-slip teeth are fixedly connected to the inner surface of the retaining ring, a stud is hinged to one end of the retaining ring, and a handwheel is threaded to the outer surface of the stud.

[0008] As a preferred embodiment of this invention: a through groove is provided at the other end of the retaining ring and the corresponding position of the stud, and the other end of the handwheel contacts the outside of the through groove.

[0009] As a preferred embodiment of this invention: the front end of the extrusion shaft contacts the clamping plate, and the clamping plate and the clamping groove match. Its working principle includes the following steps: the through groove has a U-shaped opening structure. During installation, the stud is placed into the through groove, and the handwheel is rotated to press its end face against the outer stepped surface of the through groove. The self-locking of the thread and the lever principle are used to close the two ends of the retaining spring reinforcing hoop, generating a continuous clamping force. During disassembly, the handwheel is rotated in the opposite direction to release the preload, and the stud is swung out of the through groove to quickly remove the retaining spring reinforcing hoop, achieving tool-free quick disassembly.

[0010] Compared with the prior art, the beneficial effects of the present invention are: 1. After the wedge core is inserted into the tapered sleeve, the tapered surfaces fit together to create a wedge-shaped self-locking effect. A tight connection can be achieved by axial tapping without the need for bolt fastening. The clamping plate rotates around the pin to form a pawl structure. When the extrusion shaft is pushed forward, it pushes the outer side of the clamping plate, causing its inner side to engage in the groove, thus mechanically limiting the wedge core. This, together with the wedge-shaped self-locking, forms a double fixation to prevent the connection from loosening under dynamic wind loads. 2. A buffer pad is filled between the retaining ring reinforcing hoop and the outer surface of the cone sleeve to absorb vibration and shock and prevent direct metal-to-metal contact wear. Anti-slip teeth engage the outer surface of the cone sleeve to increase friction and prevent the retaining ring reinforcing hoop from slipping under load. The stud is hinged to one end of the retaining ring reinforcing hoop. The opening is adjusted by rotating the handwheel to generate different preloads in the retaining ring reinforcing hoop, which can be adapted to towers of different diameters. It can be operated by hand without tools. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the retaining ring reinforcement structure of the present invention; Figure 3 This is a schematic diagram of the connection position structure between the mother tube and the daughter tube of the present invention; Figure 4 This is a partial enlarged view of point A in the present invention; Figure 5 This is a schematic diagram of the guide locking mechanism of the present invention; Figure 6 This is a magnified view of part B of the present invention.

[0012] In the diagram: 1. Main tube; 101. Boss; 2. Daughter tube; 201. Guide groove; 3. Wedge core; 301. Slot; 4. Tapered sleeve; 401. Mounting groove; 5. Guide locking mechanism; 501. Base; 502. Arc-shaped retaining sleeve; 503. Spring; 504. Steel ball; 505. Extrusion shaft; 506. Nut; 507. Limiting protrusion; 6. Clamping plate; 601. Pin; 7. Snap ring reinforcing band; 701. Buffer pad; 702. Stud; 703. Handwheel; 704. Anti-slip teeth. Detailed Implementation

[0013] 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, and 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.

[0014] Example 1 Please see Figure 1-6 In this embodiment of the invention, a high-strength steel single-tube iron tower with quick assembly and disassembly nodes includes a main tube 1, a daughter tube 2 embedded and connected to the upper surface of the main tube 1, a cone sleeve 4 fixedly connected to the upper surface of the main tube 1, and a wedge core 3 fixedly connected to the lower surface of the daughter tube 2. The outer surface of the tapered sleeve 4 is provided with an installation groove 401. The interior of the installation groove 401 is provided with a guide locking mechanism 5. The guide locking mechanism 5 includes a base 501, an arc-shaped retaining sleeve 502, a pressing shaft 505, and a nut 506. The base 501 is fixedly connected to the inner surface of the installation groove 401. The arc-shaped retaining sleeve 502 is fixedly connected to the outer surface of the base 501. A steel ball 504 is embedded and rotatably connected to the adjacent surfaces of the arc-shaped retaining sleeve 502 and the base 501. The pressing shaft 505 is embedded and movably connected to the outer surface of the base 501. A spring 503 is nested and connected to the outer surface of the pressing shaft 505. The nut 506 is threadedly connected to the rear end of the pressing shaft 505. A limit protrusion 507 is fixedly connected to the front end of the pressing shaft 505.

[0015] Specifically, the steel ball 504, together with the arc-shaped retaining sleeve 502 and the base 501, reduces the friction when the wedge core 3 is inserted into the conical sleeve 4. In addition, when the extrusion shaft 505 is pushed forward, it drives the clamping plate 6 to tilt, so that the clamping plate 6 limits the wedge core 3, realizing integrated guidance, positioning and locking. The spring 503 is sleeved on the middle section of the extrusion shaft 505, with one end abutting against the base 501 and the other end abutting against the limiting protrusion 507, providing elasticity to limit the clamping plate 6 of the extrusion shaft 505. During disassembly, the ratchet clamping plate 6 is moved in the opposite direction to overcome the elasticity of the spring 503, so that it can be simultaneously disengaged from the slot 301, reducing the single-node unlocking time.

[0016] Example 2 like Figure 1-6 As shown, a boss 101 is fixedly connected to the upper surface of the mother tube 1, and a guide groove 201 is fixedly connected to the lower surface of the daughter tube 2. The boss 101 is inserted into the interior of the guide groove 201, and the wedge core 3 is inserted into the interior of the cone sleeve 4. A slot 301 is opened on the outer surface of the wedge core 3. A clamping plate 6 is rotatably connected inside the mounting groove 401. A pin 601 is embedded in the side surface of the clamping plate 6. The front end of the extrusion shaft 505 contacts the clamping plate 6, and the clamping plate 6 and the slot 301 are matched.

[0017] In this embodiment, the boss 101 is inserted into the guide groove 201 to form a nested guide structure. During assembly, the weight of the sub-tube 2 is used to achieve gravity self-positioning, so that the wedge core 3 and the cone sleeve 4 can be quickly aligned coaxially, reducing the adjustment time for high-altitude operations. After the wedge core 3 is inserted into the cone sleeve 4, the cone surface fits to produce a wedge-shaped self-locking effect. Axial tapping can achieve a tight connection without the need for bolt fastening. The clamping plate 6 rotates around the pin shaft 601 to form a ratchet structure. When the extrusion shaft 505 is pushed forward, it pushes the outer side of the clamping plate 6, so that its inner side is locked into the clamping groove 301, which mechanically limits the wedge core 3 and forms a double fixation with the wedge-shaped self-locking to prevent the connection from loosening under dynamic wind load. The clamping plate 6 can be manually adjusted later, and the wedge core 3 can be pulled out axially after the limitation is released.

[0018] Example 3 Based on Embodiment 1, in order to overcome the problem that it is inconvenient to reinforce the connection position in Embodiment 1.

[0019] like Figure 1-6 As shown, a retaining ring reinforcing hoop 7 is nested on the outer surface of the cone sleeve 4 and the wedge core 3. A buffer pad 701 is fixedly connected to the inner surface of the retaining ring reinforcing hoop 7. An anti-slip tooth 704 is fixedly connected to the inner surface of the retaining ring reinforcing hoop 7. A stud 702 is hinged to one end of the retaining ring reinforcing hoop 7. A handwheel 703 is threadedly connected to the outer surface of the stud 702.

[0020] In this embodiment, the retaining ring 7 is made of elastic steel sheet in a ring-shaped structure. It uses pre-tightening elasticity to fit the outer side of the joint between the cone sleeve 4 and the wedge core 3, which radially strengthens the joint and improves the overall lateral stiffness of the tower body. The buffer pad 701 is filled between the retaining ring 7 and the outer surface of the cone sleeve 4 to absorb vibration impact and prevent direct metal-to-metal contact wear. The anti-slip teeth 704 bite the outer surface of the cone sleeve 4 to increase friction and prevent the retaining ring 7 from slipping under load. The stud 702 is hinged to one end of the retaining ring 7. The handwheel 703 is rotated to adjust the opening, so that the retaining ring 7 generates different pre-tightening forces to adapt to tower bodies of different diameters. It can be operated by hand without tools.

[0021] like Figure 1-5 As shown, a through groove is provided at the other end of the retaining ring 7 and the corresponding position of the stud 702, and the other end of the handwheel 703 contacts the outside of the through groove.

[0022] In this embodiment, the through groove has a U-shaped opening structure. During installation, the stud 702 is placed into the through groove, and the handwheel 703 is rotated to make its end face press against the outer stepped surface of the through groove. The two ends of the retaining ring reinforcement 7 are closed by the self-locking of the thread and the lever principle, generating a continuous clamping force. During disassembly, the handwheel 703 is rotated in the opposite direction to release the pre-tightening force, and the stud 702 is swung out of the through groove to quickly remove the retaining ring reinforcement 7, achieving tool-free quick disassembly.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-strength steel single-tube iron tower with quick assembly and disassembly nodes, comprising a main tube (1), a sub-tube (2) embedded and connected to the upper surface of the main tube (1), a cone sleeve (4) fixedly connected to the upper surface of the main tube (1), and a wedge core (3) fixedly connected to the lower surface of the sub-tube (2). Its features are, The outer surface of the cone sleeve (4) is provided with a mounting groove (401), and a guide locking mechanism (5) is provided inside the mounting groove (401). The guide locking mechanism (5) includes: The base (501) is fixedly connected to the inner surface of the mounting groove (401); An arc-shaped retaining sleeve (502) is fixedly connected to the outer surface of the base (501), and steel balls (504) are embedded and rotatably connected to the adjacent surfaces of the arc-shaped retaining sleeve (502) and the base (501). An extrusion shaft (505) is embedded and movably connected to the outer surface of the base (501), and a spring (503) is nested on the outer surface of the extrusion shaft (505). The nut (506) is threaded to the rear end of the extrusion shaft (505), and the front end of the extrusion shaft (505) is fixedly connected to the limiting protrusion (507).

2. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 1, characterized in that, The upper surface of the mother tube (1) is fixedly connected to a boss (101), and the lower surface of the daughter tube (2) is fixedly connected to a guide groove (201). The boss (101) is inserted into the interior of the guide groove (201).

3. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 1, characterized in that, The wedge core (3) is inserted into the inside of the cone sleeve (4). A slot (301) is provided on the outer surface of the wedge core (3). A retaining plate (6) is rotatably connected inside the mounting slot (401). A pin (601) is embedded in the side surface of the retaining plate (6).

4. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 1, characterized in that, The outer surfaces of the cone sleeve (4) and the wedge core (3) are nested with a retaining ring reinforcing hoop (7). The inner surface of the retaining ring reinforcing hoop (7) is fixedly connected with a buffer pad (701). The inner surface of the retaining ring reinforcing hoop (7) is fixedly connected with anti-slip teeth (704). One end of the retaining ring reinforcing hoop (7) is hinged with a stud (702). The outer surface of the stud (702) is threaded with a handwheel (703).

5. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 4, characterized in that, The other end of the retaining ring (7) and the stud (702) are provided with a through groove, and the other end of the handwheel (703) is in contact with the outside of the through groove.

6. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 3, characterized in that, The front end of the extrusion shaft (505) contacts the card plate (6), and the card plate (6) matches the card slot (301).

7. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 2, characterized in that, Its working principle includes the following steps: The boss (101) is inserted into the guide groove (201) to form a nested guide structure. During assembly, the weight of the sub-tube (2) is used to achieve gravity self-positioning, so that the wedge core (3) and the cone sleeve (4) are quickly aligned coaxially, reducing the adjustment time for high-altitude operations. After the wedge core (3) is inserted into the cone sleeve (4), the cone surface cooperates to produce a wedge self-locking effect. Axial tapping can achieve a tight connection without bolt fastening. The clamping plate (6) rotates around the pin shaft (601) to form a pawl structure. When the extrusion shaft (505) is pushed forward, it pushes the outer side of the clamping plate (6) so that its inner side is inserted into the clamping groove (301) to mechanically limit the wedge core (3) and form a double fixation with the wedge self-locking.

8. The high-strength steel single-tube iron tower with quick assembly / disassembly nodes according to claim 6, characterized in that, Its working principle includes the following steps: The through groove is a U-shaped opening structure. During installation, the stud (702) is placed into the through groove, and the handwheel (703) is rotated to press its end face against the outer step surface of the through groove. The two ends of the retaining ring reinforcement hoop (7) are closed by the self-locking of the thread and the lever principle to generate a continuous clamping force. When disassembling, the handwheel (703) is rotated in the opposite direction to release the pre-tightening force. The stud (702) can be quickly removed from the through groove to achieve tool-free quick disassembly.

Images