CN219387416U - Mixed-pressure three-loop corner steel pipe four-bar - Google Patents
Mixed-pressure three-loop corner steel pipe four-bar Download PDFInfo
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- CN219387416U CN219387416U CN202223434617.3U CN202223434617U CN219387416U CN 219387416 U CN219387416 U CN 219387416U CN 202223434617 U CN202223434617 U CN 202223434617U CN 219387416 U CN219387416 U CN 219387416U
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Abstract
The application provides a mix and press three return circuit corner steel pipe four poles, include: the main rod consists of four steel pipes; a main rod body provided on the main rod; the beam is arranged on the rod body; the crossbeam includes: the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are sequentially distributed along the direction from one end of the rod body to the position close to the main rod; the two ends of the first wire cross arm, the second wire cross arm and the third wire cross arm are all used for taking the central axis of the rod body as the standard, and extend towards the direction far away from the rod body, and the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are parallel to each other and are on the same plane. This application structure occupation of land size is little to be applicable to narrow region, adopts wire horizontal arrangement mode, can reduce the interlayer spacing, has reduced the pole body height, has practiced thrift the steel quantity. The mixed pressure three-loop design is adopted, so that the number of the towers is reduced, and the occupied area is further reduced.
Description
Technical Field
The application belongs to the technical field of high-voltage iron towers, and particularly relates to a mixed-voltage three-loop corner steel pipe four-bar.
Background
The electric power corner tower refers to a tower for changing the horizontal direction of a line. In overhead power transmission line construction, a line center pile is a tower center pile, and foundation pit division is performed based on the center pile.
At present, a steel pipe pole for laying a high-voltage power transmission line in an urban planning range is taken away along an urban greening line, and in a common power transmission line project, a steel pipe single pole is mostly adopted. However, in the ultra-high voltage power transmission line, the steel pipe single pole does not meet the use condition, but needs to be conveyed by adopting an electric power corner tower.
Urban green belts are generally tense in width, and electric power corner towers occupy large corridor width, so that the traditional electric power corner towers cannot be applied to some urban narrow areas.
Disclosure of Invention
This application is great for solving electric power corner tower and occupies corridor width, consequently can't use traditional electric power corner tower's problem in some urban narrow region, provides a mix and press three return circuit corner steel pipe four poles, includes:
the main rod consists of four steel pipes; the main rod is fixed on the ground;
a main rod body provided on the main rod; the beam is arranged on the rod body; the cross beam is arranged at one end of the rod body far away from the main rod;
the crossbeam includes: the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are sequentially distributed along the direction from one end of the rod body to the position close to the main rod;
the two ends of the first wire cross arm, the second wire cross arm and the third wire cross arm are all used for taking the central axis of the rod body as the standard, and extend towards the direction far away from the rod body, and the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are parallel to each other and are on the same plane.
In one possible implementation, the length of both sides of the second wire cross arm is longer than the length of both sides of the first wire cross arm; the lengths of the two sides of the first wire cross arm are longer than those of the two sides of the third wire cross arm.
In one possible implementation, the ground wire cross arm includes a first ground wire cross arm and a second ground wire cross arm;
the length of the first ground wire cross arm is longer than that of the second ground wire cross arm;
and the length of the second ground wire cross arm extending out of the rod body is consistent with the length of the second lead wire cross arm extending out of the rod body at the same side.
In one possible implementation, the length of the beam extending from the same side end of the first ground wire cross arm to the shaft is greater than the length of the beam extending from the same side end of the second ground wire cross arm to the shaft.
In one possible implementation, the ends of the first ground wire cross arm and the second ground wire cross arm, which are far away from the shaft, are respectively provided with a first ground wire hanging point and a second ground wire hanging point.
In one possible implementation manner, a first wire hanging point and a first jumper hanging point are arranged at the same side end of the first wire cross arm and the first ground wire cross arm;
the same side ends of the first wire cross arm and the second ground wire cross arm are provided with a second wire hanging point and a second jumper hanging point.
In one possible implementation manner, a third wire hanging point and a third jumper hanging point are arranged at the same side end of the second wire cross arm and the first ground wire cross arm; a fourth wire hanging point and a fourth jumper hanging point are arranged at the position from the same side end of the second wire cross arm and the first ground wire cross arm to the middle position of the rod body;
a fifth wire hanging point and a fifth jumper hanging point are arranged at the same side end of the second wire cross arm and the second ground wire cross arm; and a sixth wire hanging point and a sixth jumper wire hanging point are arranged at the middle position from the same side end of the second wire cross arm and the second ground wire cross arm to the rod body.
In one possible implementation manner, a seventh wire hanging point and a seventh jumper hanging point are arranged at the same side end of the third wire cross arm and the first ground wire cross arm;
a ninth wire hanging point and a ninth jumper hanging point are arranged at the same side end of the third wire cross arm and the second ground wire cross arm;
an eighth wire hanging point and an eighth jumper wire hanging point are arranged between the positions where the third wire cross arm is connected with the rod body.
In one possible implementation, the second wire cross arm is longer than the first wire cross arm; the first wire cross arm length is longer than the third wire cross arm.
In one possible implementation, the vertical distance of the ground wire cross arm from the first wire cross arm is 6.00m, the vertical distance of the first wire cross arm from the second wire cross arm is 8.50m, and the vertical distance of the second wire cross arm (32) from the third wire cross arm is 8.50m.
According to the technical scheme, the application provides a mixed-pressure three-loop corner steel pipe four-bar, which comprises: the main rod consists of four steel pipes; the main rod is fixed on the ground; a main rod body provided on the main rod; the beam is arranged on the rod body; the cross beam is arranged at one end of the rod body far away from the main rod; the crossbeam includes: the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are sequentially distributed along the direction from one end of the rod body to the position close to the main rod; the two ends of the first wire cross arm, the second wire cross arm and the third wire cross arm are all used for taking the central axis of the rod body as the standard, and extend towards the direction far away from the rod body, and the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are parallel to each other and are on the same plane. The utility model adopts the steel pipe design, reduces the occupied area and is suitable for wiring in a narrow area. In addition, four steel pipes are adopted to strengthen the transverse stress of the rod body, and the horizontal arrangement mode of the wires is adopted, so that the interlayer spacing of the cross arm can be reduced, the height of the rod body is reduced, and the steel consumption is saved. Meanwhile, a mixed pressure three-loop design is adopted, so that the number of used towers is reduced, the occupied area is further reduced, and the funds are saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the embodiments of the utility model. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a hybrid three-circuit corner steel pipe four-bar according to an exemplary embodiment of the present disclosure.
Reference numerals illustrate:
1-a main rod; 2-a shaft; 3-a cross beam; 31-a first wire cross arm; 32-a second wire cross arm; 33-a third wire cross arm; 34-ground wire cross arms; 311-a first wire hanging point; 312-a first jumper hanging point; 313-a second wire hanging point; 314—a second jumper hanging point; 321-a third wire hanging point; 322-third jumper hanging point; 323-fourth wire hanging point; 324-fourth jumper hanging point; 325-fifth wire hanging point; 326-fifth jumper hanging point; 327-sixth wire hanging points; 328-sixth jumper hanging point; 331-seventh wire hanging point; 332-seventh jumper hanging point; 333-eighth wire hanging point; 334-eighth jumper hanging point; 335-ninth wire hanging points; 336-ninth jumper hanging point; 341-a first ground cross arm; 342-a second ground cross arm; 341a—a first ground wire hanging point; 342 a-second ground wire hanging point.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. In the following description, numerous specific details are provided to give a thorough understanding of the implementations of embodiments of the utility model. However, those skilled in the art will recognize that the aspects of embodiments of the utility model may be practiced with one or more of the specific details omitted, or with other methods, steps, etc. In other instances, well-known aspects have not been shown or described in detail to avoid obscuring aspects of embodiments of the utility model.
The electric power corner tower refers to a tower for changing the horizontal direction of a line. In overhead power transmission line construction, a line center pile is a tower center pile, and foundation pit division is performed based on the center pile. At present, a steel pipe pole for laying a high-voltage power transmission line in an urban planning range is taken away along an urban greening line, and in a common power transmission line project, a steel pipe single pole is mostly adopted. However, in the ultra-high voltage power transmission line, the steel pipe single pole does not meet the use condition, but needs to be conveyed by adopting an electric power corner tower. Urban green belts are generally tense in width, and electric power corner towers occupy large corridor width, so that the traditional electric power corner towers cannot be applied to some urban narrow areas.
In order to solve the problem that a power corner tower occupies a large corridor width, so that a traditional power corner tower cannot be applied to some urban narrow areas, the application provides a hybrid three-circuit corner steel pipe four-bar, and referring to fig. 1, fig. 1 is a schematic structural diagram of a hybrid three-circuit corner steel pipe four-bar shown in an exemplary embodiment of the application, and the hybrid three-circuit corner steel pipe four-bar comprises a main bar 1, wherein the main bar 1 consists of four steel pipes; the main rod 1 is fixed on the ground;
a shaft 2 provided on the main shaft 1; the beam 3 is arranged on the rod body 2; the cross beam 3 is arranged at one end of the rod body 2 far away from the main rod 1; the pole body 2 in this application extends from mobile jib 1 to form, and mobile jib 1 comprises four steel pipes, and pole body 2 also is four steel pipes that extend promptly, under the circumstances that mobile jib 1 was the steel pipe design, can reduce area to be fit for establishing the narrow region in the city, the size of pole body 2 is the same with mobile jib 1, consequently can not influence city building around, and, crossbeam 3 whole has certain height from the ground, and this height should be higher than the building around at least, consequently the size of crossbeam 3 is unrestricted, design can in the bearing scope.
The cross member 3 includes: the first wire cross arm 31, the second wire cross arm 32, the third wire cross arm 33 and the ground wire cross arm 34 are sequentially distributed along the direction from one end of the rod body 2 to the position close to the main rod 1, wherein the ground wire cross arm 34, the first wire cross arm 31, the second wire cross arm 32 and the third wire cross arm 33 are sequentially distributed along the direction from one end to the position close to the main rod 1; in other words, the ground wire cross arm 34, the first wire cross arm 31, the second wire cross arm 32, and the third wire cross arm 33 are fixed in this order from the top to the bottom on the shaft 2.
In this embodiment, the two ends of the first wire cross arm 31, the second wire cross arm 32, and the third wire cross arm 33 are all based on the central axis of the shaft 2, and extend in the direction away from the shaft 2, and the first wire cross arm 31, the second wire cross arm 32, the third wire cross arm 33, and the ground wire cross arm 34 are parallel to each other and on the same plane. The parallel and coplanar structure of each cross arm is adopted in the application, so that the wires are horizontally arranged, the interlayer spacing of the cross arms is reduced, and the height of the rod body 2 is greatly reduced. In particular, the total length of the main shaft 1 and the shaft 2 may be between 55-65 m.
In some embodiments of the present application, with continued reference to fig. 1, ground cross arm 34 includes a first ground cross arm 341 and a second ground cross arm 342; the length of the first ground wire cross arm 341 is longer than the length of the second ground wire cross arm 342; and the length of the second ground wire cross arm 342 protruding from the shaft 2 is identical to the length of the second wire cross arm 32 protruding from the shaft 2 on the same side. Because of the existence of the corner, the lengths of the first ground wire cross arm 341 and the second ground wire cross arm 342 need to be matched with the calculation of the corner angle, specifically, in the embodiment of the application, when the corner is 10 ° -30 °, the length of the first ground wire cross arm 341 is 14.7m, the length of the second ground wire cross arm 342 is 14.3m, and the distance between the two rods at the connection position of the two rods is 3.8m; when the angle is 50 ° -70 °, the length of the first ground wire cross arm 341 is 16m, the length of the second ground wire cross arm 342 is 13.5m, and the double-pole spacing at the junction with the pole body is 3.8m. It is to be understood that the lengths of the first ground wire cross arm 341 and the second ground wire cross arm 342 are calculated from the central axis position of the shaft 2, and may have different dimensions according to practical situations, which is not particularly limited in this application.
In some embodiments of the present application, with continued reference to fig. 1, the length of the beam 3 extending from the shaft 2 at the same side end as the first ground wire cross arm 341 is greater than the length of the beam 3 extending from the shaft 2 at the same side end as the second ground wire cross arm 342. Like the ground crossarm 34, the dimensions of the two sides of the crossarm 3 are not the same in consideration of the angle of rotation, and specifically, in the embodiment of the present application, when the angle of rotation is 10 ° -30 °, the length of the first wire crossarm 31 extending to the left of the shaft 2 is 10.8m, the length of the first wire crossarm extending to the right of the shaft 2 is 10.3m, and the distance between the two bars at the junction with the shaft 2 is 3.6m. The length of the second wire cross arm 32 extending to the left side of the shaft 2 is 14.8m, the length of the second wire cross arm extending to the right side of the shaft 2 is 14.3m, and the double-pole distance at the joint of the second wire cross arm and the shaft 2 is 3.6m. The length of the third wire cross arm 33 extending to the left side of the shaft 2 is 5.3m, the length of the third wire cross arm extending to the right side of the shaft 2 is 4.9m, and the double-pole distance at the joint of the third wire cross arm and the shaft 2 is 3.5m. It is to be understood that the lengths of the first ground wire cross arm 341 and the second ground wire cross arm 342 are calculated from the central axis position of the shaft 2, and may have different dimensions according to practical situations, which is not particularly limited in this application.
In some embodiments of the present application, with continued reference to fig. 1, the ends of the first and second ground cross arms 341 and 342 remote from the shaft 2 are provided with first and second ground hanging points 341a and 342a, respectively. Here, the first ground wire hanging point 341a and the second ground wire hanging point 342a are used for hanging the ground wire.
In some embodiments of the present application, with continued reference to fig. 1, the length of both sides of the second wire cross arm 32 is longer than the length of both sides of the first wire cross arm 31; the length of both sides of the first wire cross arm 31 is longer than the length of both sides of the third wire cross arm 33. In the present application, the total length of the first wire cross arm 31, the second wire cross arm 32 and the third wire cross arm 33 is according to the hanging mode and hanging point of the wires, specifically, the same side ends of the first wire cross arm 31 and the first ground wire cross arm 341 are provided with a first wire hanging point 311 and a first jumper hanging point 312; the same side ends of the first wire cross arm 31 and the second ground wire cross arm 342 are provided with a second wire hanging point 313 and a second jumper hanging point 314.
The same side end of the second wire cross arm 32 and the first ground wire cross arm 341 is provided with a third wire hanging point 321 and a third jumper hanging point 322; a fourth wire hanging point 323 and a fourth jumper hanging point 324 are arranged from the same side end of the second wire cross arm 32 and the first ground wire cross arm 341 to the middle position of the rod body 2; the same side ends of the second wire cross arm 32 and the second ground wire cross arm 342 are provided with a fifth wire hanging point 325 and a fifth jumper hanging point 326; a sixth wire hanging point 327 and a sixth jumper hanging point 328 are arranged from the same side end of the second wire cross arm 32 and the second ground wire cross arm 342 to the middle position of the rod body 2.
A seventh wire hanging point 331 and a seventh jumper hanging point 332 are arranged at the same side end of the third wire cross arm 33 and the first ground wire cross arm 341; a ninth wire hanging point 335 and a ninth jumper hanging point 336 are arranged at the same side end of the third wire cross arm 33 and the second ground wire cross arm 342; an eighth wire hanging point 333 and an eighth jumper hanging point 334 are arranged between the positions where the third wire cross arm 33 is connected with the rod body 2.
The jumper wire is a short wire which is used for electric connection and does not bear tension between two sections of the power line; in the present application, four wire hanging points and four jumper hanging points are provided on the second wire cross arm 32, and two wire hanging points and two jumper hanging points are provided on the first wire cross arm 31, so that the second wire cross arm 32 is longer than the first wire cross arm 31; the third wire cross arm 33 is provided with three wire hanging points and three jumper hanging points, wherein the eighth wire hanging point 333 and the eighth jumper hanging point 334 on the third wire cross arm 33 are arranged between the positions connected with the rod body 2, so that occupied space can be reduced, and the length of the first wire cross arm 31 is longer than that of the third wire cross arm 33. And the vertical spacing of the wires and the consideration of electrician operation are arranged in a structure with long and short intervals, so that better space utilization is realized.
In some embodiments of the present application, with continued reference to fig. 1, the ground wire cross arm 34 is at a vertical distance of 5.5m-6.5m from the first wire cross arm 31, the first wire cross arm 31 is at a vertical distance of 8m-9m from the second wire cross arm 32, and the second wire cross arm 32 is at a vertical distance of 8-9m from the third wire cross arm 33. The distance between the first wire cross arm 31, the second wire cross arm 32 and the third wire cross arm 32 needs to ensure that wires do not contact when the wires are erected, specifically, in this embodiment, the vertical distance between the ground wire cross arm 34 and the first wire cross arm 31 is 6m, the vertical distance between the first wire cross arm 31 and the second wire cross arm 32 is 8.5m, and the vertical distance between the second wire cross arm 32 and the third wire cross arm 32 is 8.5 m.
According to the technical scheme, the application provides a mixed-pressure three-loop corner steel pipe four-bar, which comprises: the main rod consists of four steel pipes; the main rod is fixed on the ground; a main rod body provided on the main rod; the beam is arranged on the rod body; the cross beam is arranged at one end of the rod body far away from the main rod; the crossbeam includes: the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are sequentially distributed along the direction from one end of the rod body to the position close to the main rod; the two ends of the first wire cross arm, the second wire cross arm and the third wire cross arm are all used for taking the central axis of the rod body as the standard, and extend towards the direction far away from the rod body, and the first wire cross arm, the second wire cross arm, the third wire cross arm and the ground wire cross arm are parallel to each other and are on the same plane. The utility model adopts the steel pipe design, reduces the occupied area and is suitable for wiring in a narrow area. In addition, four steel pipes are adopted to strengthen the transverse stress of the rod body, and the horizontal arrangement mode of the wires is adopted, so that the interlayer spacing of the cross arm can be reduced, the height of the rod body is reduced, and the steel consumption is saved. Meanwhile, a mixed pressure three-loop design is adopted, so that the number of used towers is reduced, the occupied area is further reduced, and the funds are saved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. The utility model provides a mix and press three return circuit corner steel pipe four poles which characterized in that includes:
the main rod (1), the main rod (1) is composed of four steel pipes; the main rod (1) is fixed on the ground;
a shaft (2) provided on the main shaft (1); a beam (3) is arranged on the rod body (2); the cross beam (3) is arranged at one end, far away from the main rod (1), of the rod body (2);
the cross beam (3) comprises: the novel electric power transmission device comprises a first wire cross arm (31), a second wire cross arm (32), a third wire cross arm (33) and a ground wire cross arm (34), wherein the ground wire cross arm (34), the first wire cross arm (31), the second wire cross arm (32) and the third wire cross arm (33) are sequentially distributed along the direction from one end of a rod body (2) to the direction close to a main rod (1);
the two ends of the first wire cross arm (31), the second wire cross arm (32) and the third wire cross arm (33) are respectively used for taking the central axis of the rod body (2) as a reference, and extend in the direction away from the rod body (2), and the first wire cross arm (31), the second wire cross arm (32), the third wire cross arm (33) and the ground wire cross arm (34) are mutually parallel and on the same plane.
2. The hybrid three-circuit corner steel pipe four-bar according to claim 1, wherein the lengths of both sides of the second wire cross arm (32) are longer than the lengths of both sides of the first wire cross arm (31); the lengths of the two sides of the first wire cross arm (31) are longer than the lengths of the two sides of the third wire cross arm (33).
3. The hybrid three-circuit corner steel pipe four-bar system according to claim 1, wherein the ground wire cross arm (34) comprises a first ground wire cross arm (341) and a second ground wire cross arm (342);
the length of the first ground wire cross arm (341) is longer than the length of the second ground wire cross arm (342);
and the length of the second ground wire cross arm (342) extending out of the rod body (2) is consistent with the length of the second wire cross arm (32) extending out of the rod body (2) at the same side.
4. A hybrid three-circuit corner steel pipe four-bar linkage according to claim 3, wherein the lengths of the same side ends of the cross beam (3) and the first ground wire cross arm (341) extending out of the rod body (2) are larger than the lengths of the same side ends of the cross beam (3) and the second ground wire cross arm (342) extending out of the rod body (2).
5. A hybrid three-circuit corner steel pipe four-bar according to claim 3, wherein the ends of the first ground wire cross arm (341) and the second ground wire cross arm (342) away from the shaft (2) are respectively provided with a first ground wire hanging point (341 a) and a second ground wire hanging point (342 a).
6. A hybrid three-circuit corner steel pipe four-bar linkage according to claim 3, wherein a first wire hanging point (311) and a first jumper hanging point (312) are arranged at the same side end of the first wire cross arm (31) and the first ground wire cross arm (341);
the same side ends of the first wire cross arm (31) and the second ground wire cross arm (342) are provided with a second wire hanging point (313) and a second jumper wire hanging point (314).
7. A hybrid three-circuit corner steel pipe four-bar according to claim 3, wherein a third wire hanging point (321) and a third jumper hanging point (322) are arranged at the same side end of the second wire cross arm (32) and the first ground wire cross arm (341); a fourth wire hanging point (323) and a fourth jumper wire hanging point (324) are arranged from the same side end of the second wire cross arm (32) and the first ground wire cross arm (341) to the middle position of the rod body (2);
a fifth wire hanging point (325) and a fifth jumper hanging point (326) are arranged at the same side end of the second wire cross arm (32) and the second ground wire cross arm (342); and a sixth wire hanging point (327) and a sixth jumper wire hanging point (328) are arranged from the same side end of the second wire cross arm (32) and the second ground wire cross arm (342) to the middle position of the rod body (2).
8. A hybrid three-circuit corner steel pipe four-bar according to claim 3, wherein a seventh wire hanging point (331) and a seventh jumper wire hanging point (332) are arranged at the same side end of the third wire cross arm (33) and the first ground wire cross arm (341);
a ninth wire hanging point (335) and a ninth jumper hanging point (336) are arranged at the same side end of the third wire cross arm (33) and the second ground wire cross arm (342);
an eighth wire hanging point (333) and an eighth jumper wire hanging point (334) are arranged between the positions where the third wire cross arm (33) is connected with the rod body (2).
9. A hybrid three-circuit corner steel pipe four-bar according to claim 1, characterized in that the length of the second wire cross arm (32) is longer than the first wire cross arm (31); the first wire cross arm (31) is longer than the third wire cross arm (33).
10. The hybrid three-circuit corner steel pipe four-bar linkage according to claim 1, wherein the vertical distance between the ground wire cross arm (34) and the first wire cross arm (31) is 6.00m, the vertical distance between the first wire cross arm (31) and the second wire cross arm (32) is 8.50m, and the vertical distance between the second wire cross arm (32) and the third wire cross arm (33) is 8.50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223434617.3U CN219387416U (en) | 2022-12-21 | 2022-12-21 | Mixed-pressure three-loop corner steel pipe four-bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223434617.3U CN219387416U (en) | 2022-12-21 | 2022-12-21 | Mixed-pressure three-loop corner steel pipe four-bar |
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| Publication Number | Publication Date |
|---|---|
| CN219387416U true CN219387416U (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223434617.3U Active CN219387416U (en) | 2022-12-21 | 2022-12-21 | Mixed-pressure three-loop corner steel pipe four-bar |
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| Country | Link |
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| CN (1) | CN219387416U (en) |
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