Electric iron tower with stably connected tower bottom and ground

By using an outer retaining frame, an inner clamping frame, and longitudinal and transverse bolts in a cross-installation configuration, combined with a central support plate and threaded columns, the problem of unstable connection between the base of the power tower and the ground was solved, achieving higher installation stability.

CN223991635UActive Publication Date: 2026-03-13WEIFANG ZHONGGUANG TAISHAN IRON TOWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The connection between the base of existing power transmission towers and the ground is not stable enough, especially power transmission towers built with angle steel which lack a central stable structure, resulting in insufficient stability in use.

Method used

The support legs are fixed by using an outer frame, an inner frame, and longitudinal and transverse bolts in a cross-installation method. A central support structure is formed by connecting the central support plate and the threaded column, which enhances the stability of the connection between the tower base and the ground.

Benefits of technology

It improves the connection stability between the base of the power tower and the ground, enhances the stability of the four legs, and improves the overall installation stability of the power tower.

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Abstract

The utility model relates to the technical field of electric power iron towers, in particular to an electric power iron tower with a tower bottom stably connected with the ground, an outer blocking frame is arranged above the ground, supporting legs are arranged at the corners of the inner side of the outer blocking frame, inner clamping frames are arranged on the inner sides of the lower ends of the supporting legs, longitudinal bolts are spirally connected to the inner clamping frames in the front-back direction, and the longitudinal bolts are connected with the outer blocking frame in the front-back direction. The outer blocking frame can be fixedly installed on the supporting leg pre-embedded foundation column through the effect of the arranged connecting steel plate, the outer blocking frame can block the outer side of the supporting leg, the supporting leg can be fixedly installed on the outer blocking frame, and therefore the supporting leg can be fixedly installed on the supporting leg pre-embedded foundation column, and the supporting leg can be fixedly installed on the supporting leg pre-embedded foundation column through the supporting leg pre-embedded foundation column. The outer blocking frame can be inserted into the outer side of the positioning column under the action of the inner clamping frame, the inner side of the supporting leg is blocked, the outer blocking frame, the supporting leg, the inner clamping frame and the positioning column can be mutually connected through cross installation of the longitudinal bolt and the transverse bolt, the installation stability of the supporting leg is improved, and connection between the tower bottom and the ground is more stable.
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Description

Technical Field

[0001] This utility model relates to a power transmission tower with a stable connection between its base and the ground, belonging to the field of power transmission tower technology. Background Technology

[0002] Power transmission towers are an important component of power transmission lines, mainly used for overhead, protection and support of power lines. They are typically composed of structures such as a top frame, lightning protection wire, conductor, tower body and tower legs, ensuring the safety and stability of power transmission. The design, manufacture, installation and maintenance of power transmission towers require strict quality control. Materials typically used are hot-dip galvanized anti-corrosion angle steel, round pipes, etc., to ensure the stability and safety of the towers.

[0003] The existing patent number CN217353794U describes a device for a stable power tower base connected to the ground. This device uses a trapezoidal block that moves towards the outer wall of the tower legs to quickly fix the tower legs, avoiding the complexity of screw and nut fixing and greatly improving work efficiency. Additionally, a clamping plate moves towards the outer wall of the tower legs to further fix them, enhancing the stability of the tower legs and improving safety. However, this device is not suitable for power towers constructed with angle steel. Existing power towers are mainly constructed with angle steel and have four legs. Furthermore, existing technology primarily uses a pre-set base and bolts for fixing. However, the pre-set base can only restrict the legs from the outside, while the inner restriction relies mainly on nuts. This limitation is insufficient to guarantee the stability of the connection between the tower base and the ground. Moreover, it lacks a central stabilizing structure for existing four-legged power towers, reducing the tower's operational stability. Utility Model Content

[0004] The purpose of this invention is to provide a power transmission tower with a stable connection between its base and the ground, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stable power transmission tower with its base connected to the ground includes a ground surface, legs, and pre-embedded foundation columns. An outer frame is provided above the ground surface. Legs are located at the inner corners of the outer frame. An inner retaining frame is provided on the inner side of the lower end of each leg. Longitudinal bolts are spirally connected to the inner retaining frame in the front-to-back direction. The longitudinal bolts are spirally connected to the outer frame and the legs respectively. Transverse bolts are spirally connected to the inner retaining frame in the left-to-right direction. The transverse bolts are spirally connected to the outer frame and the legs respectively. An angle steel frame is fixedly connected to the upper inner side of each leg. A connecting sleeve is provided at the middle of the outer side of the angle steel frame. A connecting rod is fixedly connected to the lower end of the connecting sleeve. A central support plate is fixedly connected to the inner end of the connecting rod.

[0007] Furthermore, the ground surface is provided with pre-embedded support columns, and the upper end of the pre-embedded support columns is fixedly connected to a connecting steel plate, which is fixedly connected to the outer frame.

[0008] Furthermore, a positioning post is fixedly connected at the lower inner corner of the outer frame, the positioning post is fitted to the inner frame, and the positioning post is spirally connected to the longitudinal bolt and the transverse bolt respectively.

[0009] Furthermore, a central base column is provided inside the ground at the center point of the outer frame, and a pre-embedded steel column is fixedly connected inside the central base column, with a central support fixedly connected to the upper end of the pre-embedded steel column.

[0010] Furthermore, the inner side of the central support plate is provided with a threaded post, and a turntable is fixedly connected to the upper end of the threaded post. The threaded post and the central support base are spirally connected.

[0011] Furthermore, the upper end of the central support plate is provided with an anti-loosening sleeve, which is fitted and connected to the threaded post and to the turntable.

[0012] Furthermore, the support legs are made of hot-dip galvanized anti-corrosion angle steel.

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

[0014] This invention utilizes a connecting steel plate to secure the outer frame to the pre-embedded base column of the support leg, providing external obstruction for the support leg. An inner clamping frame is inserted outside the positioning column, providing internal obstruction for the support leg. The cross-installation of longitudinal and transverse bolts connects the outer frame, support leg, inner clamping frame, and positioning column, enhancing the stability of the support leg installation and making the connection between the tower base and the ground more stable. A connecting sleeve is fitted onto the outside of the bottom angle steel frame, and a threaded column is inserted into the middle of the central support plate. Rotation of the turntable allows the threaded column to spirally connect with the central support seat, creating downward pressure on the central support plate. This provides the central support plate with an inward pulling force on the connecting rod and connecting sleeve. An anti-loosening sleeve prevents the turntable from rotating out of control. This provides a centrally supported and stable structure for the four-legged power tower, further improving the installation stability of the tower base. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 This is a front view of a power transmission tower with a stable connection between its base and the ground, according to this utility model.

[0017] Figure 2 This is a cross-sectional view of the installation structure of the outer frame, support legs, and inner clamping frame of a power transmission tower whose base is stably connected to the ground according to this utility model.

[0018] Figure 3 This is a right view of the installation structure of the angle steel frame, connecting sleeve and connecting rod of a power tower whose base is stably connected to the ground according to this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the central support plate and central support seat of a power transmission tower whose base is stably connected to the ground according to this utility model.

[0020] The following are the labels in the diagram: 1. Ground; 2. Outer frame; 3. Support leg; 4. Inner clamping frame; 5. Longitudinal bolt; 6. Transverse bolt; 7. Angle steel frame; 8. Connecting sleeve; 9. Connecting rod; 10. Central support plate; 11. Embedded column of support leg; 12. Connecting steel plate; 13. Positioning column; 14. Central base column; 15. Embedded steel column; 16. Central support seat; 17. Threaded column; 18. Turntable; 19. Anti-loosening sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Example 1 Figures 1-4 This utility model provides a technical solution:

[0023] A stable power transmission tower with its base connected to the ground includes a ground surface 1, legs 3, and pre-embedded support columns 11. An outer frame 2 is provided above the ground surface 1. Legs 3 are located at the inner corners of the outer frame 2. An inner retaining frame 4 is provided on the inner side of the lower end of the legs 3. Longitudinal bolts 5 are spirally connected to the inner retaining frame 4 in the front-to-back direction, and are spirally connected to the outer frame 2 and the legs respectively. Lateral bolts 6 are spirally connected to the inner retaining frame 4 in the left-to-right direction, and are spirally connected to the outer frame 2 and the legs 3 respectively. Pre-embedded support columns 11 are provided inside the ground surface 1. A connecting steel plate 12 is fixedly connected to the upper end of the pre-embedded support column 11, and is fixedly connected to the outer frame 2. The lower inner wall of the outer frame 2... Positioning posts 13 are fixedly connected at the corners. Positioning posts 13 are fitted together with inner clamping frames 4. Positioning posts 13 are spirally connected to longitudinal bolts 5 and transverse bolts 6 respectively. Support legs 3 are made of hot-dip galvanized anti-corrosion angle steel. The outer baffle 2 can be fixedly installed on the pre-embedded base column 11 of the support leg by the setting of connecting steel plate 12, so that the outer baffle 2 can block the support leg from the outside. The inner clamping frame 4 can be inserted on the outside of the positioning post 13 and block the support leg from the inside. The cross installation of longitudinal bolts 5 and transverse bolts 6 can connect the outer baffle 2, support legs 3, inner clamping frames 4 and positioning posts 13 to each other, improve the installation stability of support legs 3, and make the connection between the tower bottom and the ground 1 more stable.

[0024] Please refer to Example 2 Figure 1 Figure 3 and Figure 4The difference between this embodiment and embodiment 1 is as follows: An angle steel frame 7 is fixedly connected to the upper inner side of the outrigger 3. A connecting sleeve 8 is provided at the middle position of the outer side of the angle steel frame 7. A connecting rod 9 is fixedly connected to the lower end of the connecting sleeve 8. A central support plate 10 is fixedly connected to the inner end of the connecting rod 9. A central base column 14 is provided inside the ground 1 at the center point of the outer frame 2. A pre-embedded steel column 15 is fixedly connected inside the central base column 14. A central support seat 16 is fixedly connected to the upper end of the pre-embedded steel column 15. A threaded column 17 is provided on the inner side of the central support plate 10. A turntable 18 is fixedly connected to the upper end of the threaded column 17. The threaded column 17 and the central support seat 16 are spirally connected. The upper end of the central support plate 10... An anti-loosening sleeve 19 is provided, which is fitted and connected to the threaded post 17 and the turntable 18. The connecting sleeve 8 can be fitted onto the outside of the bottom angle steel frame 7, and the threaded post 17 is inserted into the middle position of the central support plate 10. By rotating the turntable 18, the threaded post 17 can be screwed and connected to the central support seat 16, forming a downward pressure on the central support plate 10. This allows the central support plate 10 to have a pulling force on the connecting rod 9 and the connecting sleeve 8 inward. The anti-loosening sleeve 19 prevents the turntable 18 from loosening, so that the power tower with four legs has a central support and stable structure, further improving the installation stability of the power tower base.

[0025] The working principle of this utility model is as follows: During use, the connecting steel plate 12 allows the outer baffle 2 to be fixedly installed on the pre-embedded base column 11 of the support leg. The outer baffle 2 provides external obstruction for the support leg, while the inner clamping frame 4 is inserted into the outside of the positioning column 13 to provide internal obstruction for the support leg. The cross-installation of longitudinal bolts 5 and transverse bolts 6 connects the outer baffle 2, support leg 3, inner clamping frame 4, and positioning column 13, improving the installation stability of the support leg 3 and thus making the connection between the tower base and the ground 1 more stable. The connecting sleeve 8 is used to fit over the outside of the bottom angle steel frame 7, and the threaded column 17 is inserted into the middle position of the central support plate 10. By rotating the turntable 18, the threaded column 17 can be spirally connected to the central support seat 16, forming a downward pressure on the central support plate 10. This allows the central support plate 10 to exert a pulling force on the connecting rod 9 and the connecting sleeve 8 inward. The turntable 18 is protected against loosening by the anti-loosening sleeve 19, so that the power tower with four legs has a central support and stable structure, further improving the installation stability of the power tower base.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power tower with stable tower bottom and ground connection, comprising a ground (1), a leg (3) and a pre-buried footing column (11), characterized in that: The upper side of the ground (1) is provided with an outer blocking frame (2), the inner side corner position of the outer blocking frame (2) is provided with a supporting leg (3), the inner side of the lower end of the supporting leg (3) is provided with an inner clamping frame (4), the front and rear direction of the inner clamping frame (4) is spirally connected with a longitudinal bolt (5), the longitudinal bolt (5) is spirally connected between the outer blocking frame (2) and the supporting leg (3) respectively, the left and right direction of the inner clamping frame (4) is spirally connected with a transverse bolt (6), the transverse bolt (6) is spirally connected between the outer blocking frame (2) and the supporting leg (3) respectively, the inner side of the upper side of the supporting leg (3) is fixedly connected with an angle steel frame (7), the outer side of the middle position of the angle steel frame (7) is provided with a connecting sleeve (8), the lower end of the connecting sleeve (8) is fixedly connected with a connecting rod (9), the inner end of the connecting rod (9) is fixedly connected with a center support plate (10).

2. A power tower with a stable tower bottom connection to the ground according to claim 1, characterized in that The inner side of the ground (1) is provided with a supporting leg embedded foundation column (11), the upper end of the supporting leg embedded foundation column (11) is fixedly connected with a connecting steel plate (12), the connecting steel plate (12) is fixedly connected between the outer blocking frame (2).

3. The power tower according to claim 1, wherein: The inner side lower end wall corner position of the outer blocking frame (2) is fixedly connected with a positioning column (13), the positioning column (13) is connected between the inner clamping frame (4), the positioning column (13) is spirally connected between the longitudinal bolt (5) and the transverse bolt (6) respectively.

4. The power tower according to claim 1, wherein: The inner side of the ground (1) at the center point position of the outer blocking frame (2) is provided with a center foundation column (14), the inner side of the center foundation column (14) is fixedly connected with a pre-embedded steel column (15), the upper end of the pre-embedded steel column (15) is fixedly connected with a center support base (16).

5. A power tower with a stable tower base-ground connection according to claim 4, characterized in that: The inner side of the center support plate (10) is provided with a threaded column (17), the upper end of the threaded column (17) is fixedly connected with a rotating disc (18), the threaded column (17) is spirally connected between the center support base (16).

6. A power tower with a stable tower base-ground connection according to claim 5, characterized in that: The upper end of the center support plate (10) is provided with a lock sleeve (19), the lock sleeve (19) is connected between the threaded column (17), the lock sleeve (19) is connected between the rotating disc (18).

7. The power tower according to claim 1, wherein: The supporting leg (3) is provided with a hot-dip galvanized anti-corrosion angle steel.

Citation Information

Patent Citations

  • Electric iron tower with stably connected tower bottom and ground

    CN217353794U