CN214273122U - Connecting hardware fitting and transmission tower - Google Patents
Connecting hardware fitting and transmission tower Download PDFInfo
- Publication number
- CN214273122U CN214273122U CN202022613927.6U CN202022613927U CN214273122U CN 214273122 U CN214273122 U CN 214273122U CN 202022613927 U CN202022613927 U CN 202022613927U CN 214273122 U CN214273122 U CN 214273122U
- Authority
- CN
- China
- Prior art keywords
- flange
- sleeve portion
- rod
- rod body
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a link fitting, including sleeve portion and connecting portion, the sleeve portion is hollow barrel, and connecting portion include two at least side flanges that set up in the sleeve portion periphery, and side flange includes a flange section of thick bamboo and sets up the ring flange in a flange section of thick bamboo one end, and the axis of a flange section of thick bamboo is perpendicular with the axis of sleeve portion, sets up a plurality of strengthening ribs between a flange section of thick bamboo and the sleeve portion. The utility model also discloses a transmission tower including this link fitting, this link fitting structural design is reasonable, and the sleeve part can directly cup joint on the body of rod for hollow barrel, makes stress evenly distributed, avoids concentrated stress's emergence to lead to the reduction to body of rod intensity, regards as connecting portion with the side flange, and joint strength is high, the installation of being convenient for.
Description
Technical Field
The application relates to the technical field of power transmission insulating equipment, in particular to a connecting hardware fitting and a power transmission tower.
Background
Along with the development of transmission line engineering, the urban electric load is increased sharply, and the traditional iron tower can only be applied to open areas such as urban edges and suburbs due to large floor area and incapability of fusing with urban environment in structural form; the reinforced concrete pole is often applied to low-voltage grade due to lower performance of the material and the whole structure, and the application field is limited; therefore, the steel pipe pole bent by the steel plate is produced and widely applied to power transmission and distribution lines.
The composite cross arm is used as a cross arm type widely applied to the transmission line at present, the steel pipe pole of the transmission line mainly comprises a pole body and the composite cross arm, and the pole body is used for lifting a lead to a certain height so as to keep a certain safety distance between the ground and a structure on the ground; the composite cross arm has the function of supporting the ground wire and the rod body for a certain distance, and the safety distance between the ground wire and the rod body is ensured. The common connection mode of the composite cross arm and the rod body is through connection or flange welding, and for the first through connection mode, holes are drilled in the rod body, so that stress is easily concentrated around the drilled holes, and construction is inconvenient; and the second flange welding connection mode, the flange of compound cross arm directly is connected with the body of rod and probably leads to it to have great weakening to the intensity of the body of rod, and the residual stress after the welding can't better control, and the steel pipe welding department easily causes weldment function and shape change, leads to the wholeness can the decline.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, one of the purposes of the utility model is to provide a connecting hardware fitting which has reasonable structural design, effectively improves the strength of the connecting part of the cross arm and the rod body, enables the stress to be uniformly distributed and avoids the reduction of the rod body strength caused by the occurrence of concentrated stress; the structure is stable, so that the high-voltage pole can be used for high-voltage poles with high strength requirements; the flange matched with the cross arm can be directly connected with the flange of the connecting hardware fitting, and the structure is simple and easy to install.
In order to achieve the above object, the present invention adopts the following technical means: a connecting hardware fitting comprises a sleeve portion and a connecting portion, wherein the sleeve portion is a hollow cylinder, the connecting portion comprises at least two side flanges arranged on the periphery of the sleeve portion, each side flange comprises a flange cylinder and a flange plate arranged at one end of the flange cylinder, the axis of the flange cylinder is perpendicular to the axis of the sleeve portion, and a plurality of reinforcing ribs are arranged between the flange cylinder and the sleeve portion.
This link fitting structural design is reasonable, and the sleeve part can directly cup joint on the body of rod for hollow barrel, makes stress evenly distributed, avoids concentrated stress's emergence to lead to the reduction to body of rod intensity, regards as connecting portion with the side flange, and joint strength is high, the installation of being convenient for.
Preferably, the number of the side flanges is two, and the two side flanges are symmetrically arranged on the outer periphery of the sleeve portion. The two side flanges are symmetrically arranged so as to balance acting force.
Preferably, both ends of the sleeve portion are provided with reinforcing plates disposed around the outer periphery of the sleeve portion. The reinforcing plate can increase the annular pressure resistance of the sleeve part and improve the overall stability of the connecting hardware fitting.
Preferably, a first rib is provided between two adjacent flange cylinders, the first rib is provided on the outer periphery of the sleeve portion, and both ends of the first rib abut against the outer peripheries of the two flange cylinders, respectively. First strengthening rib belongs to long strengthening rib, can transmit the atress of two side flanges, and the atress opposite direction of two side flanges, and some effort can offset each other, has increased link fitting's structural stability.
Preferably, a second reinforcing rib is arranged between the flange cylinder and the reinforcing plate. The reinforcing plate can be directly abutted with the second reinforcing rib, a transmission channel for bearing the force of the side flange is provided, and the bearing force of the side flange can be transmitted to the reinforcing plate and then transmitted to the sleeve part.
The utility model discloses a second of the purpose provides a transmission tower, and this transmission tower includes foretell link fitting, and structural design is reasonable simple, can effectively improve the intensity of cross arm and body of rod junction, can be connected the flange that the cross arm itself was supporting directly with link fitting's side flange, and the structure is succinct, easily installation.
In order to achieve the above object, the present invention adopts the following technical means: the utility model provides a transmission tower, includes the body of rod and cross arm, still includes foretell link fitting, and the fixed cover of link fitting is established on the body of rod, and the cross arm includes post insulator, and post insulator one end sets up the flange, flange and side flange fixed connection, and post insulator's the other end is used for articulating the wire. The transmission tower comprises the connecting hardware fitting, so that the strength of the connecting part of the cross arm and the rod body is effectively improved, the stress is uniformly distributed, and the reduction of the strength of the rod body caused by the occurrence of concentrated stress is avoided; the structure is stable, so that the high-voltage pole can be used for high-voltage poles with high strength requirements; the flange matched with the cross arm can be directly connected with the side flange of the connecting hardware fitting, and the structure is simple and easy to install.
Preferably, the cross arms are at least two groups and are arranged on the periphery of the rod body. The setting of cross arm is unanimous with the quantity of side flange, the installation of being convenient for.
Preferably, the rod body is a metal steel pipe, and the connecting hardware fitting and the rod body are welded into a whole. The rod body is a metal steel pipe, the strength is high, the rod body and the connecting hardware fitting are convenient to weld integrally, and the connecting performance is superior.
Preferably, the rod body is a cement rod, and the connecting hardware fitting is fixedly connected with the rod body in a cementing mode. The cost of the cement pole is low.
Preferably, the cross arm further comprises a cable-stayed insulator, the other end of the post insulator is connected with one end of the cable-stayed insulator, and the other end of the cable-stayed insulator is connected to the power transmission pole. When the post insulator is long, a diagonal insulator is added to improve the stability of the cross arm.
Preferably, the rod body is provided with at least two connecting lugs, the connecting lugs are positioned right above the side flanges, and the diagonal insulator is connected with the power transmission rod through the connecting lugs. The arrangement of the connecting lug is convenient for the installation of the diagonal insulator.
Drawings
Fig. 1 is a schematic perspective view of a connection fitting 100 according to a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a link fitting 200 according to a second embodiment of the present invention;
fig. 3 is a schematic perspective view of a transmission tower 1000 according to a third embodiment of the present invention;
fig. 4 is a schematic perspective view of a transmission tower 2000 according to a fourth embodiment of the present invention.
Detailed Description
As required, detailed embodiments of the present invention will be disclosed herein. However, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed manner, including employing various features disclosed herein in connection with which such features may not be explicitly disclosed.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a link fitting 100, which includes a sleeve portion 110 and a connecting portion, wherein the sleeve portion 110 is a hollow cylinder, the connecting portion includes two side flanges 120 disposed on the outer periphery of the sleeve portion 110, each side flange 120 includes a flange cylinder 121 and a flange 122 disposed at one end of the flange cylinder 121, the axis of the flange cylinder 121 is perpendicular to the axis of the sleeve portion 110, and a plurality of reinforcing ribs are disposed between the flange cylinder 121 and the sleeve portion 110, that is, the plurality of reinforcing ribs simultaneously abut against the outer peripheries of the flange cylinder 121 and the sleeve portion 110. This link fitting 100 structural design is reasonable, and sleeve portion 110 is the hollow barrel can directly cup joint on the body of rod, makes stress evenly distributed, avoids concentrated stress's emergence to lead to the reduction to body of rod intensity, uses side flange 120 as connecting portion, and joint strength is high, the installation of being convenient for.
In the present embodiment, the number of the side flanges 120 is two, and the two side flanges 120 are symmetrically disposed on the outer circumference of the sleeve portion 110. The symmetrical arrangement of the two side flanges 120 facilitates force balancing.
In other embodiments, the number of the side flanges is not limited to two, and may be one or three or more, and is designed according to actual needs.
In other embodiments, the positions of the two side flanges may also be asymmetric, and the design is based on the actual stress condition and the installation condition.
In the present embodiment, the sleeve portion 110 has a circular cross-section. In other embodiments, the sleeve portion is a hollow cylinder, and the inner wall of the cylinder may not be a cylindrical surface, and may be adapted according to the installation environment. For example, the inner wall is a prismatic surface or a conical surface.
In this embodiment, the flange 122 of the side flange 120 is provided with a plurality of mounting holes 123 for facilitating disk-to-disk connection with other components, and is fixedly mounted by using a bolt connection manner.
In other embodiments, the flange of the side flange may be designed to have any shape suitable for the installation environment, such as a shape with a corresponding concave and convex design for the mating surface for installation, which is not limited herein.
In the present embodiment, two first ribs 131 are disposed between the two flange tubes 121, the two first ribs 131 are symmetrically arranged on the outer periphery of the sleeve portion 110 with the central vertical section of the sleeve portion 110 as a symmetry plane, and both ends of the first ribs 131 respectively abut on the outer peripheries of the two flange tubes 121. That is, the two flange tubes 121 are defined, and the two sides of the sleeve portion 110 are provided with the two first beads 131. The first reinforcing rib 131 belongs to a long reinforcing rib, and can transmit the stress of the two side flanges 120, and the stress directions of the two side flanges 120 are opposite, so that a part of acting force can be offset, and the structural stability of the link fitting 100 is increased.
In other embodiments, the number of the first reinforcing ribs may be one, three, four, or the like. When only one first reinforcing rib is arranged, only one side region of the sleeve part is provided with the first reinforcing rib; when the number of the first reinforcing ribs is three, one first reinforcing rib is arranged in the area of one side of the sleeve portion, two first reinforcing ribs are arranged in the area of the other side of the sleeve portion, and the two first reinforcing ribs can be arranged in parallel or in an intersecting manner; when there are four first reinforcing ribs, two first reinforcing ribs are respectively provided in the regions on both sides of the sleeve portion, and the two first reinforcing ribs may be provided in parallel or in an intersecting manner. By analogy, a reasonable number of first reinforcing ribs are arranged according to the length and performance requirements of the sleeve portion.
In another embodiment, the first reinforcing rib may be a short reinforcing rib, and may be provided between the sleeve portion and the flange cylinder in the circumferential direction of the sleeve portion, thereby saving material.
In this embodiment, two second reinforcing ribs 132 are also disposed between the sleeve portion 110 and each of the flange cylinders 121 along the axial direction of the sleeve portion 110, and the two second reinforcing ribs 132 are symmetrically disposed on the periphery of the flange cylinder 121, so as to support the flange cylinder 121 and transmit the acting force applied to the flange cylinder 121 from the axial direction, thereby improving the overall stability of the link fitting 100.
In other embodiments, additional ribs may be disposed around the flange cylinder between the first and second ribs.
In the present embodiment, the sleeve portion 110 and the connecting portion of the link fitting 100 and the reinforcing ribs are integrally connected by welding. In other embodiments, the link fitting may be integrally molded by casting.
The link fitting 100 of this embodiment structural design is reasonable, and sleeve portion 110 can directly cup joint on the body of rod for hollow barrel, makes stress evenly distributed, avoids concentrated stress's emergence to lead to the reduction to body of rod intensity, regards as connecting portion with side flange 120, and joint strength is high, the installation of being convenient for.
Example two:
as shown in fig. 2, the present embodiment provides a connection fitting 200, which is different from the first embodiment in that the connection fitting 200 is further provided with a reinforcing plate 240.
In the present embodiment, both ends of the sleeve portion 210 are provided with reinforcing plates 240 disposed around the outer circumference of the sleeve portion 210. The reinforcing plate 240 increases the circumferential pressure resistance of the sleeve portion 210, and improves the overall stability of the link fitting 200. The reinforcing plate 240 is an annular plate and extends outward of the sleeve portion 210.
In this embodiment, the second reinforcing rib 232 is disposed between the flange cylinder 221 and the reinforcing plate 240. The reinforcing plate 240 may directly abut against the second ribs 232, and provide a transmission path for the force applied to the side flange 220, so that the force applied to the side flange 220 may be transmitted to the reinforcing plate 240 and thus to the sleeve portion 210.
In the present embodiment, the reinforcing plate 240 is flush with the upper and lower end surfaces of the sleeve portion 210, and leaves the largest space for the second rib 232 to be disposed, so that the force transmission path is longer and better distributed. In other embodiments, the reinforcement plate may be spaced from the upper and lower end surfaces of the sleeve portion.
The link fitting 200 of the present embodiment is provided with the reinforcing plate 240, so that the hoop stress resistance of the sleeve portion 210 is increased, and the overall stability of the link fitting 200 is improved.
Example three:
as shown in fig. 3 and fig. 2, the present embodiment provides a transmission tower 1000, where the transmission tower 1000 includes a rod 1100 and a cross arm 1200, and further includes the connection hardware 200, the connection hardware 200 is fixedly sleeved on the rod 1100, the cross arm 1200 includes a post insulator 1210, one end of the post insulator 1210 is provided with a flange 1211, the flange 1211 is fixedly connected with the side flange 220, and the other end of the post insulator 1210 is used for hanging a lead. The power transmission tower 1000 comprises the connecting hardware fitting 200, so that the strength of the connecting part of the cross arm 1200 and the rod body 1100 is effectively improved, the stress is uniformly distributed, and the strength of the rod body 1100 is prevented from being reduced due to the occurrence of concentrated stress; the connecting hardware fitting 200 is stable in structure and can be used for high-voltage-level electric poles with high strength requirements; the flange 1211 matched with the cross arm 1200 itself can be directly connected with the side flange 220 of the link fitting 200, and the structure is simple and easy to install.
In this embodiment, the post insulator 1210 is a short post and may be fixed without using a cable-stayed insulator.
In this embodiment, the flange 1211 and the side flange 220 are provided with mounting holes corresponding to each other and are fixed by bolts. The bolt connection strength is high, and the site operation is convenient.
In other embodiments, other fixing methods such as welding may be used.
In this embodiment, the other end of the post insulator 1210 is provided with a first flange 1212, and the first flange 1212 is provided with a wire hanging hole for hanging a wire.
In this embodiment, the cross arms 1200 are two sets and are disposed on the outer circumference of the rod 1100. The cross arms 1200 are arranged in the same number as the side flanges 220, so that the installation is convenient.
In other embodiments, the cross arms may be only one set. Or, set up a plurality of side flanges on the link fitting, the cross arm sets up to the multiunit thereupon to satisfy different user demands.
In this embodiment, the rod 1100 is a metal steel pipe, and the link fitting 200 and the rod 1100 are welded together. The rod body 1100 is a metal steel pipe, is high in strength, is convenient to weld with the connecting hardware fitting 200 into a whole, and is excellent in connecting performance.
In this embodiment, the rod 1100 and the link fitting 200 may be welded in advance to be an integral unit, and the cross arm 1200 may be installed after being transported to a site. The steps of field installation can be simplified, and the construction speed is accelerated.
In this embodiment, the rod 1100 is an integral metal steel tube. In other embodiments, the rod body can also be designed in a segmented mode, and the rod body is assembled on site and convenient to transport.
In other embodiments, the rod body designed in sections can be provided with cross arms on each section, and the specific number of the cross arms and the distance between the cross arms between different sections are set according to the actual requirement of multiple loops on the transmission line so as to meet the requirement of the electrical performance of the transmission tower.
In other embodiments, the rod body is a cement rod, the connecting hardware fitting is fixedly connected with the rod body in a cementing mode, and the cost of the cement rod is low. Generally speaking the diameter of cement pole is thick under the thin, and reasonable in design's diameter of cement pole overlaps from the head of cement pole with link fitting, and in a certain position department, link fitting can block on the cement pole, and it is supplementary fixed with the mucilage binding, guarantees the joint strength and the angle of connection of cement pole and link fitting.
In other embodiments, the link fitting may also be the structure of the link fitting 100, or other structures in the above embodiments of the link fitting, as long as the performance requirement that the link fitting is installed on the transmission tower is met.
The transmission tower 1000 of the embodiment comprises the connecting hardware fitting 200, so that the strength of the joint of the cross arm 1200 and the rod body 1100 is effectively improved, the stress is uniformly distributed, and the strength of the rod body 1100 is prevented from being reduced due to the occurrence of concentrated stress; the cross arm is suitable for cross arms in different shapes connected with the rod body 1100, and can be used for high-voltage-level electric poles with higher strength requirements due to stable structure; the flange 1211 matched with the cross arm 1200 itself can be directly connected with the side flange 220 of the link fitting 200, and the structure is simple and easy to install.
Example four:
as shown in fig. 4 and fig. 2, the present embodiment provides a transmission tower 2000, which is different from the third embodiment in that a cross arm 2200 is further provided with a diagonal insulator 2220.
In this embodiment, the cross arm 2200 further includes a cable-stayed insulator 2220, one end of the post insulator 2210 is fixedly connected to the side flange 220, the other end of the post insulator 2210 is fixedly connected to one end of the cable-stayed insulator 2220, and the other end of the cable-stayed insulator 2220 is connected to the rod 2100. When the post insulator 2210 is long, the stay insulator 2220 is added in order to improve the stability of the cross arm 2200.
In this embodiment, at the connection between the cable-stayed insulators 2220 and the post insulators 2210, a grading ring 2230 is disposed around the ends of the cable-stayed insulators 2220 and the post insulators 2210, and the grading ring 2230 is disposed on the first flange 2212 for balancing the voltage at the ends of the insulators and improving the overall electrical performance of the power transmission tower 2000.
In other embodiments, if the voltage level of the power transmission line is low, the grading ring may not be provided.
In this embodiment, two engaging lugs 2110 are disposed on the rod 2100, the engaging lugs 2110 are located right above the side flange 220, and the cable-stayed insulator 2220 is connected to the rod 2100 through the engaging lugs 2110. The connection lug 2110 is provided to facilitate the installation of the cable-stayed insulator 2220.
In this embodiment, the rod 2100 is a metal steel pipe, and the rod 2100 and the engaging lug 2110 are fixedly connected by welding. In the actual installation process, the link fitting 200 is sleeved on the rod body 2100, the rod body 2100 and the link fitting 200 are welded into a whole in advance, and then the connecting lug 2110 is welded on the rod body 2100, so that the field operation and construction are facilitated.
In other embodiments, if the rod body is designed in sections, the welding sequence may not be considered.
In other embodiments, the rod body is a cement rod, the link fitting is required to be sleeved and fixed on the rod body, the link lugs are embedded into the rod body above the link fitting, and the connection strength of the link lugs can be reinforced in a connection manner such as cementing.
In the power transmission tower 2000 of the embodiment, the cross arm 2200 is further provided with the diagonal insulator 2220, so that the stability of the cross arm 2200 is improved.
The connecting hardware fitting effectively improves the strength of the connecting part of the cross arm and the rod body, ensures that the stress is uniformly distributed, and avoids the reduction of the rod body strength caused by the occurrence of concentrated stress; the connecting hardware fitting is stable in structure and can be used for high-voltage-level electric poles with high strength requirements; the flange matched with the cross arm can be directly connected with the side flange of the connecting hardware fitting, and the structure is simple and easy to install.
While the invention has been described with reference to the above disclosure, it will be understood by those skilled in the art that various changes and modifications in the above-described structures and materials, including combinations of features disclosed herein either individually or in any combination, will be apparent to one skilled in the art from the disclosure herein. These variants and/or combinations fall within the technical field of the present invention and are intended to be protected by the following claims.
Claims (10)
1. A link fitting is characterized in that: the connecting part comprises at least two side flanges arranged on the periphery of the sleeve part, each side flange comprises a flange cylinder and a flange plate arranged at one end of the flange cylinder, the axis of the flange cylinder is perpendicular to the axis of the sleeve part, and a plurality of reinforcing ribs are arranged between the flange cylinder and the sleeve part.
2. The link fitting according to claim 1, wherein: the number of the side flanges is two, and the two side flanges are symmetrically arranged on the periphery of the sleeve portion.
3. The link fitting according to claim 1, wherein: reinforcing plates are provided at both ends of the sleeve portion so as to surround the outer periphery of the sleeve portion.
4. The link fitting according to claim 1, wherein: first reinforcing ribs are arranged between two adjacent flange cylinders, the first reinforcing ribs are arranged on the peripheries of the sleeve portions, and two ends of each first reinforcing rib abut against the peripheries of the two flange cylinders.
5. The link fitting according to claim 3, wherein: and a second reinforcing rib is arranged between the flange cylinder and the reinforcing plate.
6. The utility model provides a transmission tower, includes the body of rod and cross arm, its characterized in that: the connecting hardware fitting of any one of claims 1 to 5 is further included, the connecting hardware fitting is fixedly sleeved on the rod body, the cross arm includes a post insulator, a flange is arranged at one end of the post insulator, the flange is fixedly connected with the side flange, and the other end of the post insulator is used for hanging a lead.
7. The transmission tower of claim 6, wherein: the cross arm is at least two sets of, sets up the periphery of the body of rod.
8. The transmission tower of claim 6, wherein: the rod body is a metal steel pipe, and the connecting hardware fitting and the rod body are welded into a whole.
9. The transmission tower of claim 6, wherein: the cross arm further comprises a diagonal insulator, the other end of the post insulator is connected with one end of the diagonal insulator, and the other end of the diagonal insulator is connected to the power transmission pole.
10. The transmission tower of claim 9, wherein: the rod body is provided with at least two connecting lugs, the positions of the connecting lugs are positioned right above the side flanges, and the oblique-pulling insulator is connected with the rod body through the connecting lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613927.6U CN214273122U (en) | 2020-11-12 | 2020-11-12 | Connecting hardware fitting and transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613927.6U CN214273122U (en) | 2020-11-12 | 2020-11-12 | Connecting hardware fitting and transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214273122U true CN214273122U (en) | 2021-09-24 |
Family
ID=77775326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022613927.6U Active CN214273122U (en) | 2020-11-12 | 2020-11-12 | Connecting hardware fitting and transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214273122U (en) |
-
2020
- 2020-11-12 CN CN202022613927.6U patent/CN214273122U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209384393U (en) | Joint strengthening type steel-pipe assembly concrete connecting structure | |
| CN108868817B (en) | Connection structure of cable channel and shield tunnel comprising connection structure | |
| CN211036702U (en) | Anti-twisting device for main cable of space cable surface suspension bridge | |
| CN214273122U (en) | Connecting hardware fitting and transmission tower | |
| CN211342028U (en) | Adjustable assembled steel pipe tower | |
| CN212453865U (en) | Steel column base node connection structure | |
| CN202299572U (en) | Plus or minus 800kV extra-high voltage direct current large-crossing steel tubular tower joint | |
| CN210368944U (en) | Bored concrete pile owner muscle and strengthening rib connection structure and bored concrete pile steel reinforcement cage | |
| CN113550616A (en) | Reinforcing rod based on hoop connection and reinforcing method thereof | |
| CN218969809U (en) | Quick assembled closed box culvert structure | |
| CN211421160U (en) | Assembled transmission line shaft tower basis | |
| CN105735308A (en) | Prestressed pipe pile | |
| CN210105440U (en) | Pole heightening device | |
| CN110439108B (en) | Super high-rise building core tube beam column structure and construction method thereof | |
| CN216076564U (en) | First-aid repair tower | |
| CN211446942U (en) | Supporting structure | |
| CN210622987U (en) | Stay cable type tower and wind generating set | |
| CN209011305U (en) | Steel pipe concrete bracket attachment device | |
| CN208137131U (en) | A kind of steel-structure beam-column node | |
| CN202298604U (en) | Prestressed reinforcement concrete special-shaped precast pile | |
| CN219833722U (en) | Connecting fitting and composite cross arm | |
| CN220319246U (en) | Composite cross arm and power transmission tower | |
| CN219833723U (en) | End fitting, composite cross arm comprising end fitting and power transmission tower | |
| CN218623612U (en) | Connection structure of concrete electric wire pole | |
| CN216810613U (en) | Large-span steel truss structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 200050 room 801, building 2, No. 55, Jinlun Road, Changning District, Shanghai Patentee after: Shanghai Shenma Electric Power Engineering Co.,Ltd. Address before: 501, building g, Hongqiao Green Valley, 69 Yonghong Road, Minhang District, Shanghai 201100 Patentee before: Shanghai Shenma Electric Power Engineering Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |