Node connecting device for steel tube tower

Abstract

The utility model relates to the technical field of steel tube tower installation, in particular to a node connecting device for a steel tube tower, which is characterized in that a threaded shaft is rotatably connected inside an inner bracket, a sliding square tube is spirally connected to the outer side of the threaded shaft, an inner supporting plate is fixedly connected to the outer end of the sliding square tube, and a main steel tube is slidably connected to the outer end of the inner supporting plate; through the effect of the arranged rotating pull disc, the lifting cross-shaped rod can be driven to move upwards after being pulled upwards, so that the arranged first spring is compressed, the limiting buckle can be moved out of the inner supporting frame, the rotating pull disc can rotate, the rotating pipe is driven to rotate through the lifting cross-shaped rod, and the rotating pipe is driven to rotate through the lifting cross-shaped rod. Therefore, the bevel gear set can drive the threaded shaft to rotate, the sliding square pipe can drive the inner supporting plate to move towards the outer side, the inserting plate can be inserted into the main steel pipe, rapid connection of the lining steel structure at the joint is achieved, and the joint connecting efficiency and connecting convenience of the steel pipe tower are improved.

Description

Technical Field

[0001] The utility model relates to a node connection device for a steel tube tower and belongs to the technical field of steel tube tower installation. Background Art

[0002] The main components of the steel tube tower are made of steel tubes, and the other components are made of steel tubes or steel sections. The lattice tower is a supporting structure for overhead transmission lines to support conductors and lightning conductors, so that the conductors meet the distance requirements from the ground and objects, and can withstand the loads of the conductors, lightning conductors, their own loads and external loads.

[0003] The existing patent number is CN217001154U, which is a node connection device for a steel pipe tower. This device has the advantages of being able to adjust the angle, facilitating installation and connection, and meeting the use requirements by setting a main pipe, connecting a secondary pipe, an adjusting component, a connecting plate, a first fixed plate, a second fixed plate, an arc groove, a sliding groove, a fastening screw, a movable rod, a fastening nut, a limit hole, and a limit rod. However, in the prior art, the installation of the node does not require angle adjustment, and all are installed horizontally. In the prior art, the internal steel structure and the outer main bearing steel pipe are connected at four points, but the four-point connection requires manual installation one by one, and the installation process is relatively cumbersome. The convenience of node installation of the internal supporting steel structure is improved; and when the node is connected to the outer pipe body of the steel pipe tower, the connection between the upper and lower side pipe bodies and the inner structure cannot be limited to each other, thereby affecting the connection stability between the upper and lower steel pipes, and the mutual bidirectional reinforcement effect cannot be achieved. Utility Model Content

[0004] The utility model aims to provide a node connection device for a steel pipe tower to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A node connection device for a steel pipe tower comprises an inner support frame and a main steel pipe, wherein the inner support frame is rotatably connected with a threaded shaft, the outer side of the threaded shaft is spirally connected with a sliding square tube, the sliding square tube and the inner support frame are slidably connected, the outer end of the sliding square tube is fixedly connected with an inner support plate, the outer end of the inner support plate is slidably connected with the main steel pipe, the inner side of the main steel pipe is slidably connected with a plug plate, the plug plate and the inner support plate are fixedly connected, the lower end of the main steel pipe is fixedly connected with a threaded head, the lower end of the threaded head is fixedly connected with a limiting plug rod, the limiting plug rod and the plug plate are slidably connected, and the lower end of the limiting plug rod is slidably connected to the limiting pin.

[0007] Furthermore, a rotating tube is rotatably connected at the middle position of the upper end of the inner support frame, a bevel gear set is fixedly connected to the lower end of the rotating tube, and an outer bevel gear of the bevel gear set is fixedly connected to the threaded shaft.

[0008] Furthermore, a lifting cross rod is slidably connected to the inner side of the rotating tube, a rotating pull plate is fixedly connected to the upper end of the lifting cross rod, a first spring is covered on the surface of the lifting cross rod, a limiting buckle is fixedly connected to the outer side of the lower end of the rotating pull plate, and the limiting buckle is slidably connected to the inner support frame.

[0009] Furthermore, a limiting insertion hole is provided on the lower side of the limiting insertion rod, and the position and size of the limiting insertion hole correspond to the position and size of the limiting latch.

[0010] Furthermore, a sliding rod is slidably connected to the upper side of the front end of the main steel pipe, the sliding rod is fixedly connected to the limit pin, the surface of the sliding rod is covered with a second spring, and the front end of the sliding rod is rotatably connected to a pull ring.

[0011] Furthermore, there are four groups of main steel pipes, and the upper ends of the main steel pipes are provided with connecting internal threads.

[0012] Furthermore, there are four threaded shafts, which are symmetrically arranged about the central axis of the inner support frame.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a rotating pull plate, which can drive the lifting cross rod to move upward after being pulled upward, so that the set first spring is compressed and the limit buckle can be moved out of the inner support frame, so that the rotating pull plate can be rotated, and the rotating tube is driven to rotate by the lifting cross rod, so that the bevel gear set can drive the threaded shaft to rotate, so that the sliding square tube can drive the inner support plate to move outward, and the plug plate can be inserted into the main steel pipe, so as to realize the rapid connection of the lining steel structure at the node, without connecting one by one, thereby improving the connection efficiency and convenience of the steel pipe tower node. The threaded head is utilized to connect the upper and lower butt-jointed main steel pipes to each other, and the limit rod can be inserted into the inner side of the plug plate to realize the horizontal limit treatment of the inner support frame. At the same time, the sliding pull rod can be moved outward by pulling the pull ring, and the limit pin is driven to move outward. After the limit rod is fully inserted, the pull ring is released to extend the second spring, so that the limit pin can be inserted into the limit hole at the lower end of the limit rod, thereby realizing the limit treatment of the upper main steel pipe, ensuring the connection stability and convenience at the node of the steel pipe tower, and enabling the various structures at the node to have a mutual two-way reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a node connection device for a steel pipe tower according to the utility model;

[0017] Figure 2 It is a cross-sectional view of the installation structure of an inner support frame, a threaded shaft and a rotating pull plate of a node connection device for a steel pipe tower of the utility model;

[0018] Figure 3 It is a top cross-sectional view of the installation structure of the rotating tube and the lifting cross rod of a node connection device for a steel tube tower of the utility model;

[0019] Figure 4 It is a cross-sectional view of the installation structure of the inner support plate and the main steel pipe of a node connection device for a steel pipe tower of the utility model;

[0020] Figure 5 It is a left view of the installation structure of the sliding rod and the pull ring of a node connection device for a steel pipe tower of the utility model;

[0021] Numbers in the figure: 1. Inner support frame; 2. Threaded shaft; 3. Sliding square tube; 4. Inner support plate; 5. Main steel tube; 6. Insert plate; 7. Threaded head; 8. Limiting rod; 9. Limiting pin; 10. Rotating tube; 11. Bevel gear set; 12. Lifting cross rod; 13. Rotating pull plate; 14. First spring; 15. Limiting buckle; 16. Limiting socket; 17. Sliding pull rod; 18. Second spring; 19. Pull ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1 Please refer to Figure 1-Figure 5 , the utility model provides a technical solution:

[0024] A node connection device for a steel pipe tower comprises an inner support frame 1 and a main steel pipe 5, wherein the inner support frame 1 is rotatably connected with a threaded shaft 2, the outer side of the threaded shaft 2 is spirally connected with a sliding square pipe 3, the sliding square pipe 3 is slidably connected to the inner support frame 1, the outer end of the sliding square pipe 3 is fixedly connected with an inner support plate 4, the outer end of the inner support plate 4 is slidably connected with the main steel pipe 5, a rotating tube 10 is rotatably connected at the middle position of the upper end of the inner support frame 1, the lower end of the rotating tube 10 is fixedly connected with a bevel gear set 11, the outer bevel gear of the bevel gear set 11 is fixedly connected with the threaded shaft 2, the inner side of the rotating tube 10 is slidably connected with a lifting cross rod 12, the upper end of the lifting cross rod 12 is fixedly connected with a rotating pull plate 13, the surface of the lifting cross rod 12 is covered with a first spring 14, and the lower end of the rotating pull plate 13 is fixedly connected to the outer side of a limited The positioning buckle 15 is slidingly connected between the limiting buckle 15 and the inner support frame 1. There are four threaded shafts 2, which are symmetrically arranged about the central axis of the inner support frame 1. The rotating pull plate 13 can drive the lifting cross rod 12 to move upward after being pulled upward, so that the set first spring 14 is compressed, and the limiting buckle 15 can be moved out of the inner support frame 1, so that the rotating pull plate 13 can rotate, and the lifting cross rod 12 drives the rotating tube 10 to rotate, so that the bevel gear set 11 can drive the threaded shaft 2 to rotate, so that the sliding square tube 3 can drive the inner support plate 4 to move outward, and the plug plate 6 can be inserted into the main steel pipe 5, so as to realize the rapid connection of the lining steel structure at the node, without the need to connect one by one, thereby improving the connection efficiency and convenience of the steel pipe tower node.

[0025] Example 2 Please refer to Figure 1 , Figure 4 and Figure 5The difference between this embodiment and embodiment 1 is that: the inner side of the main steel pipe 5 is slidably connected with a plug plate 6, the plug plate 6 is fixedly connected to the inner support plate 4, the lower end of the main steel pipe 5 is fixedly connected with a threaded head 7, the lower end of the threaded head 7 is fixedly connected with a limited plug rod 8, the limited plug rod 8 is slidably connected to the plug plate 6, the lower end of the limited plug rod 8 is slidably connected to the limited plug pin 9, the lower side of the limited plug rod 8 is provided with a limited plug hole 16, the position and size of the limited plug hole 16 correspond to the position and size of the limited plug pin 9, the upper side of the front end of the main steel pipe 5 is slidably connected with a sliding rod 17, the sliding rod 17 is fixedly connected to the limiting plug pin 9, the surface of the sliding rod 17 is covered with a second spring 18, the front end of the sliding rod 17 is rotatably connected with a pull ring 19, the main There are four groups of steel pipes 5. An internal connecting thread is provided at the upper end port of the main steel pipe 5. The threaded head 7 is used to connect the upper and lower main steel pipes 5 to each other, and the limiting rod 8 is inserted into the inner side of the plug plate 6 to achieve horizontal limiting of the inner support frame 1. At the same time, the sliding rod 17 is pulled to move outward by pulling the pull ring 19, and the limiting pin 9 is driven to move outward. After the limiting rod 8 is fully inserted, the pull ring 19 is released to extend the second spring 18, so that the limiting pin 9 can be inserted into the limiting socket 16 at the lower end of the limiting rod 8, thereby achieving limiting of the upper main steel pipe 5, ensuring the connection stability and convenience at the steel pipe tower node, and enabling the various structures at the node to have a mutual bidirectional reinforcement effect.

[0026] Working principle of the utility model: when the device is in use, the rotating pull plate 13 can be set to drive the lifting cross rod 12 to move upward after being pulled upward, so that the set first spring 14 is compressed, and the limit buckle 15 can be moved out of the inner support frame 1, so that the rotating pull plate 13 can rotate, and the lifting cross rod 12 drives the rotating tube 10 to rotate, so that the bevel gear set 11 can drive the threaded shaft 2 to rotate, so that the sliding square tube 3 can drive the inner support plate 4 to move outward, and the plug plate 6 can be inserted into the main steel pipe 5, so as to realize the rapid connection of the lining steel structure at the node, without the need to connect one by one, and improve the connection efficiency and connection of the steel pipe tower node. The connection is convenient, and the threaded head 7 is used to connect the upper and lower main steel pipes 5 connected to each other, and the limit rod 8 can be inserted into the inner side of the plug plate 6 to realize the horizontal limit processing of the inner support frame 1. At the same time, the sliding pull rod 17 can be moved outward by pulling the pull ring 19, and the limit pin 9 is driven to move outward. After the limit rod 8 is fully inserted, the pull ring 19 is released to extend the second spring 18, so that the limit pin 9 can be inserted into the limit socket 16 at the lower end of the limit rod 8, so as to realize the limit processing of the upper main steel pipe 5, ensure the connection stability and convenience at the node of the steel pipe tower, and enable the various structures at the node to have a mutual two-way reinforcement effect.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A node connection device for a steel pipe tower, comprising an inner support frame (1) and a main steel pipe (5), characterized in that: The inner support frame (1) is rotatably connected to a threaded shaft (2), the outer side of the threaded shaft (2) is spirally connected to a sliding square tube (3), the sliding square tube (3) is slidably connected to the inner support frame (1), the outer end of the sliding square tube (3) is fixedly connected to an inner support plate (4), the outer end of the inner support plate (4) is slidably connected to a main steel pipe (5), the inner side of the main steel pipe (5) is slidably connected to a plug plate (6), the plug plate (6) is fixedly connected to the inner support plate (4), the lower end of the main steel pipe (5) is fixedly connected to a threaded head (7), the lower end of the threaded head (7) is fixedly connected to a limiting plug rod (8), the limiting plug rod (8) is slidably connected to the plug plate (6), and the lower end of the limiting plug rod (8) is slidably connected to a limiting latch pin (9).

2. A node connection device for a steel pipe tower according to claim 1, characterized in that: A rotating tube (10) is rotatably connected at the middle position of the upper end of the inner support frame (1), a bevel gear set (11) is fixedly connected to the lower end of the rotating tube (10), and an outer bevel gear of the bevel gear set (11) is fixedly connected to the threaded shaft (2).

3. A node connection device for a steel pipe tower according to claim 2, characterized in that: A lifting cross rod (12) is slidably connected to the inner side of the rotating tube (10), a rotating pull plate (13) is fixedly connected to the upper end of the lifting cross rod (12), a first spring (14) is coated on the surface of the lifting cross rod (12), a limiting buckle (15) is fixedly connected to the outer side of the lower end of the rotating pull plate (13), and the limiting buckle (15) is slidably connected to the inner support frame (1).

4. A node connection device for a steel pipe tower according to claim 1, characterized in that: A limiting insertion hole (16) is provided on the lower side of the limiting insertion rod (8), and the position and size of the limiting insertion hole (16) correspond to the position and size of the limiting latch (9).

5. A node connection device for a steel pipe tower according to claim 1, characterized in that: A sliding rod (17) is slidably connected to the upper side of the front end of the main steel pipe (5), the sliding rod (17) is fixedly connected to the limit latch (9), the surface of the sliding rod (17) is covered with a second spring (18), and the front end of the sliding rod (17) is rotatably connected to a pull ring (19).

6. A node connection device for a steel pipe tower according to claim 1, characterized in that: There are four groups of the main steel pipes (5), and the upper end ports of the main steel pipes (5) are provided with connecting internal threads.

7. A node connection device for a steel tube tower according to claim 1, characterized in that: There are four threaded shafts (2), and the threaded shafts (2) are symmetrically arranged about the central axis of the inner support frame (1).

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