Adjustable angle steel clamp type pole tower construction hanging point structure

Abstract

This utility model relates to an adjustable angle steel clamp type pole construction hanging point structure, including a pair of clamps arranged facing left and right for connecting to the main crossarm member. Each clamp includes an outer folded plate and an inner folded plate. The horizontal and vertical portions of the outer folded plate are parallel to the horizontal and vertical portions of the inner folded plate, respectively. A groove-shaped channel is formed between the inner and outer folded plates to clamp the main crossarm member. A connecting plate is provided between the horizontal portions of the outer folded plates of the pair of clamps. A hanging plate is slidably connected to the connecting plate along the front-back direction on the side facing the pair of clamps. The hanging plate has construction hanging holes. This utility model has a simple structure and can replace conventional wire rope binding connection, avoiding the problem of local stress concentration in the members caused by improper binding method, thus improving the convenience and reliability of construction. At the same time, the hanging plate and the connecting plate set between the top of the pair of clamps are slidably connected, so that the clamp can release the load through a certain displacement when under load, avoiding clamp failure.

Description

Technical Field

[0001] This utility model relates to an adjustable angle steel clamp type pole and tower construction hanging point structure. Background Technology

[0002] When upgrading the wind-resistant insulation cables of transmission line towers, suitable locations need to be found on the crossarms and tower body to install cable hanging points. The existing technology involves binding steel wire ropes or fiber ropes around the crossarms and diagonal members of the tower body, connecting shackles to the ropes and suspending the insulation cables. The disadvantages of this technology are: 1. Improper binding methods with steel wire ropes or fiber ropes can easily lead to uneven stress on the crossarms and diagonal members, causing stress concentration on individual members; 2. Manual measurement at the binding points may introduce errors; 3. The binding method is prone to swaying during construction, causing the hanging points to shift; 4. Once the connection position is fixed, it cannot be automatically adjusted, and the connector bears the entire external load; 5. It is impossible to detect stress concentration or fatigue fracture risks in real time. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing an adjustable angle steel clamp type pole and tower construction hanging point structure.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable angle steel clamp type tower construction hanging point structure, including a pair of clamps arranged facing left and right for connecting with the main crossarm member. Each clamp includes an outer folding plate and an inner folding plate. The horizontal and vertical parts of the outer folding plate are parallel to the horizontal and vertical parts of the inner folding plate, respectively. A groove-shaped channel is formed between the inner and outer folding plates to clamp the main crossarm member. A connecting plate is provided between the horizontal parts of the outer folding plates of the pair of clamps. A hanging plate is slidably connected to the connecting plate in the front-back direction on the side facing the pair of clamps. The hanging plate is provided with construction hanging holes.

[0005] Furthermore, the connecting plate includes a set of double-angled long steel bars distributed front to back, with the vertical portions of the set of double-angled long steel bars fitting together, and the left and right ends of the horizontal portions of the set of double-angled long steel bars being connected to the horizontal portions of the inner and outer folding plates respectively by first bolts.

[0006] Furthermore, the hanging plate includes a set of double short angle steels distributed left and right, a set of double short angle steels and a set of double long angle steels distributed perpendicularly, the horizontal part of the set of double short angle steels and the horizontal part of the set of double long angle steels are connected by a second bolt, the vertical part of the set of double short angle steels is attached to each other, and the vertical part of the set of double short angle steels is coaxially provided with a construction hanging hole that runs through the left and right direction.

[0007] Furthermore, each of the transverse portions of a set of double-jointed long angle steels is provided with a sliding elongated hole at the position corresponding to the second bolt. The sliding elongated hole extends in the front-back direction and slides in cooperation with the second bolt in the front-back direction.

[0008] Furthermore, the transverse portion of the outer folding plate and the transverse portion of the inner folding plate, as well as the vertical portion of the outer folding plate and the vertical portion of the inner folding plate, are all connected together by a third bolt. The bolt holes on the transverse and vertical portions of the outer folding plate and the transverse and vertical portions of the inner folding plate for engaging with the third bolt are all elongated holes.

[0009] Furthermore, a MEMS pressure sensor is installed on the outer periphery of the construction hanging hole. The MEMS pressure sensor is electrically connected to a wireless signal transmitter, which transmits the signal from the MEMS pressure sensor to the monitoring center.

[0010] Furthermore, the MEMS pressure sensor is powered by a combination of a solar power module and a supercapacitor.

[0011] Furthermore, both the outer and inner folding plates are horizontally arranged in a groove shape.

[0012] Furthermore, a stiffening plate is welded between the horizontal and vertical portions of the inner folded plate.

[0013] Furthermore, both the outer and inner folding plates are channel steel.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and can replace conventional wire rope binding connection, avoiding the problem of stress concentration in local members caused by improper binding method. It can be accurately positioned as needed, improving the convenience and reliability of construction. At the same time, the hanging plate and the connecting plate set between a pair of clamps adopt a sliding connection, so that the clamps can release the load through a certain displacement when they are under load, avoiding clamp failure. In addition, when the load is checked, the impact force generated can be ignored with an impact coefficient of 1.1, reducing the load borne. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of this utility model; Figure 2 This is a side sectional view of an embodiment of the present invention; Figure 3 This is a bottom view schematic diagram of an embodiment of the present invention; Figure 4 This is a schematic diagram of the main structure of the clamp in an embodiment of this utility model; Figure 5 This is a schematic diagram of the usage state of an embodiment of this utility model.

[0016] In the picture: 1-Clamping fixture; 2-Main crossarm material; 3-Outer folding plate; 31-Horizontal part of the outer folding plate; 32-Vertical part of the outer folding plate; 4-Inner folding plate; 41-Horizontal part of the inner folding plate; 42-Vertical part of the inner folding plate; 5-Connecting plate; 6-Hanging plate; 7-Construction hanging hole; 8-Double-jointed long angle steel; 9-Double-jointed short angle steel; 10-Sliding long hole; 11-Stiffening plate; 12-MEMS pressure sensor; 13-Upper hanging point structure; 14-Lower hanging point structure; 15-Insulated pull rope; 16-Iron tower. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "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 utility model 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 utility model.

[0019] like Figures 1 to 4 As shown, this utility model discloses an adjustable angle steel clamp type tower construction hanging point structure, including a pair of clamps 1 arranged facing left and right and respectively used to connect with the main crossarm 2. The pair of clamps 1 have the same structure. Each clamp 1 includes an outer folded plate 3 and an inner folded plate 4 of the same shape. The horizontal part 31 and the vertical part 32 of the outer folded plate are parallel to the horizontal part 41 and the vertical part 42 of the inner folded plate, respectively. The inner and outer folded plates form a groove-shaped channel for clamping the main crossarm 2. A connecting plate 5 is provided between the horizontal parts of the outer folded plates of the pair of clamps 1. A hanging plate 6 is slidably connected to the middle position of the connecting plate 5 on the side facing the pair of clamps in the front-back direction. The hanging plate 6 has a construction hanging hole 7 for connecting with an insulating cable. By using the hanging plate and the connecting plate set between the pair of clamps connected to the main crossarm, displacement adjustment in the front-back horizontal direction can be achieved when under load to release the force on the clamp. When the load ends, it returns to its original position by gravity.

[0020] In this embodiment, the connecting plate 5 includes a set of double-jointed long angle steels 8 distributed in a front-to-back manner. The set of double-jointed long angle steels 8 is arranged in a left-to-right direction (that is, the length direction of the set of double-jointed long angle steels extends in the left-to-right direction). The vertical parts of the set of double-jointed long angle steels 8 are attached to each other, and the left and right ends of the horizontal part of the set of double-jointed long angle steels 8 are respectively connected to the horizontal parts of the inner and outer folding plates by the first bolts.

[0021] In this embodiment, the hanging plate 6 includes a set of double-splitter short angle steels 9 distributed left and right. The set of double-splitter short angle steels 9 and the set of double-splitter long angle steels 8 are perpendicularly distributed (i.e., the length direction of the set of double-splitter short angle steels extends in the front-back direction). The horizontal part of the set of double-splitter short angle steels 9 is attached to the horizontal part of the set of double-splitter long angle steels 8 and connected by a second bolt. The vertical part of the set of double-splitter short angle steels 9 is attached to each other. The vertical part of the set of double-splitter short angle steels 9 is coaxially provided with a construction hanging hole 7 that runs through in the left-right direction. That is, the set of double-splitter short angle steels and the set of double-splitter long angle steels constitute a construction hanging point assembly for connecting insulating cables. The construction hanging hole is set on the double-splitter short angle steels.

[0022] In this embodiment, each of the transverse portions of a set of double-jointed long angle steel 8 has a sliding elongated hole 10 corresponding to the position of the second bolt (i.e., there are a total of four sliding elongated holes). The sliding elongated holes 10 extend in the front-back direction and slide in conjunction with the second bolt in the front-back direction, thereby forming a sliding engagement between a set of double-jointed short angle steel 9 and a set of double-jointed long angle steel 8 in the front-back direction, realizing horizontal displacement adjustment. Furthermore, the horizontal displacement adjustment distance is 10cm. The double-jointed short angle steel is connected to the bidirectional slide rail on the double-jointed long angle steel, which can realize a horizontal displacement adjustment of 10cm when under load, so as to release the force on the clamp. When the load ends, it returns to its original position by gravity.

[0023] In this embodiment, the horizontal portion 31 of the outer folding plate and the horizontal portion 41 of the inner folding plate, as well as the vertical portion 32 of the outer folding plate and the vertical portion 42 of the inner folding plate, are all connected together by a third bolt. The bolt holes on the horizontal and vertical portions of the outer folding plate 3 and the horizontal and vertical portions of the inner folding plate 4 for cooperating with the third bolt are all elongated holes, which are convenient to accommodate angle steel with different leg widths of 60-200mm (the main material of the crossbeam is angle steel).

[0024] In this embodiment, both the outer folding plate 3 and the inner folding plate 4 are horizontally arranged in a groove shape.

[0025] In this embodiment, in order to improve structural strength, a stiffening plate 11 is welded between the horizontal and vertical portions of the inner folding plate 3.

[0026] In this embodiment, both the outer folding plate 3 and the inner folding plate 4 are channel steel.

[0027] In another embodiment, a MEMS pressure sensor 12 is installed on the outer periphery of the construction hanging hole 7. The MEMS pressure sensor 12 is powered by a combination of a solar power module and a supercapacitor. The MEMS pressure sensor 12 is electrically connected to a wireless signal transmitter, which transmits the signal from the MEMS pressure sensor 12 to the monitoring center. The MEMS pressure sensor collects stress / temperature / vibration data in real time at a sampling rate of 1kHz, and the warning threshold is set to 80% of the material's yield strength. By setting up a MEMS pressure sensor and transmitting data to the monitoring center via a wireless signal transmitter, remote real-time monitoring of stress conditions can be achieved, avoiding the risk of stress concentration or fatigue fracture (such as periodic and accidental load changes caused by wind loads or broken wires).

[0028] This utility model uses fewer materials and has a simple structure, which can replace conventional wire rope binding connections. It is adaptable to angle steel of different widths and avoids the problem of stress concentration in local members caused by improper binding methods. It can be accurately positioned as needed, improving the convenience and reliability of construction. At the same time, a set of double-jointed short angle steel and a set of double-jointed long angle steel slide together in the front-back direction to achieve horizontal displacement adjustment. This allows the clamp to release the load through a certain displacement when under load, avoiding clamp failure. In addition, the impact force generated can be ignored in the load calculation, reducing the load it bears.

[0029] In this embodiment, during construction, there are two hanging point structures, which are distributed facing each other upwards and downwards. The upper and lower ends of the insulated pull rope are respectively connected to the construction hanging holes of the two hanging point structures, such as... Figure 5 As shown.

[0030] In practical use, the specifications of double-jointed long angle steel are selected by calculation based on the actual lap length of the crossarm or tower body at the connection point. The diagonal members of the reinforced section are modeled in the professional tower design software and the bearing capacity is calculated as axial compression or axial tension members. Then, the eccentric bearing capacity is calculated based on the eccentric effect of the compression and bending members of the steel structure. The specific steps include software modeling, load input, program calculation, and verification according to the steel structure specifications.

[0031] The professional tower design software is SmartTower. The software modeling includes rapid modeling steps, calculation data entry and correction steps, and result calculation and analysis steps. The operations in the rapid modeling process include creating absolute coordinate key points, creating the body / leg joint table, and quickly assembling the tower using templates; The operations in the calculation data entry and correction steps include, in sequence, modifying constraints, minimum axis, and parallel axis information, modifying member material information, adding wind pressure polygon data, and adding load and working condition combination data; The calculation and analysis steps include finite element analysis and verification, adjusting member specifications, adding auxiliary balancing method calculations, and outputting tower command diagrams and data.

[0032] Specifically: When inputting loads, the loads on the tower are divided into linear loads and tower body wind loads; linear loads include conductor and ground wire loads; the nodes where loads are applied are the load application points; load application points are divided into conductor / ground wire load nodes and tower body wind load nodes; at the nodes where conductor / ground wire loads are applied, the load components along the three coordinate axes are input. That is, based on the actual situation of the tower location to be reinforced, key information such as horizontal span, vertical span, rotation angle, nominal height, and conductor / ground wire parameters are input, and the software performs load calculations and generates load files. During load input, the SmartLoad software is used, and after load calculation, a load file named XX.ttt is generated. During program calculation, the load calculation results are imported into the tower design software SmartTower, and the results are calculated and analyzed; the stress condition of a certain member is determined by observing the stress ratio color and report of the components in the model.

[0033] When verifying according to steel structure specifications, the original components in the reinforcement area, along with the diagonal braces, short angle steels, filler plates, and cladding plates used for reinforcement, are combined to form a unified compression-bending member. Verification is conducted according to steel structure design standards. Specifically, the formula for calculating the section strength of the compression-bending member is: .

[0034] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0035] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0036] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An adjustable angle steel clamp type tower construction hanging point structure, comprising a pair of clamps arranged facing left and right for connecting with the main crossarm member, each clamp including an outer folding plate and an inner folding plate, the horizontal and vertical portions of the outer folding plate being parallel to the horizontal and vertical portions of the inner folding plate respectively, and the inner and outer folding plates forming a groove-shaped channel for clamping the main crossarm member, characterized in that: A connecting plate is provided between the transverse portions of the outer folded plates of a pair of clamps. A hanging plate is slidably connected to the connecting plate in the front-back direction on the side where the pair of clamps are located. The hanging plate has construction hanging holes.

2. The adjustable angle steel clamp type pole mounting point structure according to claim 1, characterized in that: The connecting plate includes a set of double-angled long steel bars distributed front to back. The vertical parts of the set of double-angled long steel bars are attached to each other, and the left and right ends of the horizontal parts of the set of double-angled long steel bars are respectively connected to the horizontal parts of the inner and outer folding plates by the first bolts.

3. The adjustable angle steel clamp type pole mounting point structure according to claim 2, characterized in that: The hanging plate includes a set of double short angle steels distributed from left to right. The set of double short angle steels and the set of double long angle steels are perpendicularly distributed. The horizontal part of the set of double short angle steels and the horizontal part of the set of double long angle steels are connected by a second bolt. The vertical part of the set of double short angle steels is attached to each other. The vertical part of the set of double short angle steels is coaxially provided with a construction hanging hole that runs through the left and right direction.

4. The adjustable angle steel clamp type tower construction hanging point structure according to claim 3, characterized in that: A set of double-section long angle steels are provided with sliding long holes at the positions corresponding to the second bolts on the transverse part. The sliding long holes extend in the front-back direction and slide in cooperation with the second bolts in the front-back direction.

5. The adjustable angle steel clamp type pole mounting point structure according to claim 1, characterized in that: The horizontal portion of the outer folding plate and the horizontal portion of the inner folding plate, as well as the vertical portion of the outer folding plate and the vertical portion of the inner folding plate, are all connected together by a third bolt. The bolt holes on the horizontal and vertical portions of the outer folding plate and the horizontal and vertical portions of the inner folding plate for engaging with the third bolt are all elongated holes.

6. The adjustable angle steel clamp type pole mounting point structure according to claim 1 or 3, characterized in that: A MEMS pressure sensor is installed on the outer periphery of the construction hanging hole. The MEMS pressure sensor is electrically connected to a wireless signal transmitter, which transmits the signal from the MEMS pressure sensor to the monitoring center.

7. The adjustable angle steel clamp type pole mounting point structure according to claim 6, characterized in that: The MEMS pressure sensor is powered by a combination of a solar power module and a supercapacitor.

8. The adjustable angle steel clamp type pole mounting point structure according to claim 1, characterized in that: Both the outer and inner folding plates are horizontally arranged in a groove shape.

9. The adjustable angle steel clamp type pole mounting point structure according to claim 1 or 8, characterized in that: A stiffening plate is welded between the horizontal and vertical portions of the inner folded plate.

10. The adjustable angle steel clamp type tower construction hanging point structure according to claim 1 or 8, characterized in that: Both the outer and inner folding plates are channel steel.

Images