Double-yoke-plate large-span V-shaped quadruple suspension string

Abstract

The utility model discloses a large-span V-shaped four-link suspension string with double link plates, which comprises a plurality of parallel suspension link plates, link plate connecting pieces are assembled between the opposite suspension link plates for connection, and each suspension link plate consists of a plate large arm and cross beam plates integrally connected to two ends of the plate large arm. The pair of cross beam plates and the large plate arm jointly form an I-shaped structure, one cross beam plate is integrally triangular to form a triangular beam plate, the other cross beam plate is integrally rectangular to form a rectangular beam plate, suspension clamps are assembled on the two cross beam plates, and the other end of the cross beam plate of the rectangular structure is further rotationally connected with a hanging piece. The structure is suitable for large-width hardware fittings, the stability between the large-span hardware fittings can be improved, the large-span hardware fittings have the mutual traction capacity, and therefore it is guaranteed that the hardware fittings can effectively resist adverse effects caused by extreme weather when being erected in a large-span mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of hardware for power transmission lines, in particular to a V-shaped four-joint suspension string with double joint plates and large span. Background Art

[0002] With the construction of high voltage, the voltage level is getting higher and higher, which will inevitably increase the cross-section of the wire and the number of wire splits, which will increase the use of wires, the tonnage of hardware strings, the size and tonnage of hardware, and the increase in voltage, which will also make the structural dimensions between the hanging points of the tower larger and the width of the line corridor increase, the weight of the tower is getting heavier, and the investment in the project will also increase. Line power outages or insulator string drop accidents caused by lightning strikes will cause great danger to the safe operation of the entire power grid.

[0003] Chinese patent CN106558376B discloses a V-type double-joint single-hanging point four-split suspension string, which adopts a four-hanging point four-split connecting plate to increase the number of wire splits, adapt to higher and higher voltage levels, improve the structural strength of the hardware and the overall strength of the suspension string, and make the force structure between the products more reasonable, ensuring the normal operation of the transmission line; at the same time, it effectively shortens the length of the suspension string, thereby reducing the tower height of the transmission tower, and reducing the manufacturing, transportation and construction costs of the hardware and tower. The arcing angle and arcing ring are used in combination to protect the transmission line from lightning strikes in thunderstorms, so that the transmission line can operate safely and stably, protect the insulation string, and increase the service life of the insulation string. The same style of V-type insulator string can be used for strings of split conductors such as two-split, three-split, four-split, six-split, and eight-split.

[0004] The existing four-link suspension strings have poor stability when connected over large spans, making the hardware more susceptible to extreme weather challenges when erecting over large spans. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems existing in the above-mentioned background technology, the utility model adopts the following technical solutions.

[0007] A double-linked plate large-span V-shaped four-linked suspension string, comprising a plurality of suspension linking plates arranged parallel to each other, and the suspension linking plates arranged relatively to each other are connected by linking plate connecting pieces, the suspension linking plates are composed of a plate arm and a crossbeam plate integrally connected to the two ends of the plate arm, a pair of the crossbeam plates and the plate arm together form an I-shaped structure, one of the crossbeam plates is a triangle as a whole to form a triangular beam plate, and the other crossbeam plate is a rectangle as a whole to form a rectangular beam plate, and both of the crossbeam plates are equipped with suspension wire clamps, wherein the other end of the crossbeam plate of the rectangular structure is also rotatably connected to a hanging piece, the hanging piece is equipped with a steamed bread hanging plate by bolts, the steamed bread hanging plate is equipped with a suspension string, and the other end of the suspension string is installed with an arcing angle; the linking plate connecting piece is composed of a support plate and a template integrally connected to the two ends of the support plate, and a plurality of screw holes are provided on the template; the connection between the plate arm and the crossbeam plate is provided with bolt holes arranged in a rectangular shape, and the template is fitted at the connection between the plate arm and the crossbeam plate so that its screw holes coincide with the bolt holes, and is fixed by bolts.

[0008] Preferably, first arc ribs are provided at both ends of the same side of the triangular beam plate and the rectangular beam plate, a connecting hole is provided at the center of the first arc rib, and the suspension connecting plate is assembled with the suspension wire clamp by bolt fixing through the connecting hole.

[0009] Preferably, a connecting buckle is provided at one end of the Wotou hanging plate, and a hanging joint is connected to the other end of the Wotou hanging plate, a plug hole is opened on the hanging joint, the Wotou hanging plate is plugged into the hanging plate through the connecting buckle, assembled with bolts, and the hanging joint of the Wotou hanging plate is connected to the insulator string.

[0010] Preferably, a second arc rib is symmetrically provided between the connecting buckle and the hanging joint on the steamed bread hanging plate, and a through hole for assembling bolts is opened at the center of the second arc rib.

[0011] Preferably, the suspension wire clamp includes a lower wire sleeve and an upper wire sleeve, the upper wire sleeve covers the lower wire sleeve and is fixed through with bolts, a screw hole seat is provided on the upper surface of the upper wire sleeve, the upper wire sleeve is connected to a connecting plate via the screw hole seat, and the connecting plate and the screw hole seat are connected by bolts.

[0012] Preferably, a protective wire is provided between the lower wire sleeve and the upper wire sleeve, and the protective wire wraps the connection between the cable and the suspension clamp.

[0013] Preferably, the end of the arcing angle is equipped with a ball head hanging plate, a U-shaped connecting plate is installed on the ball head hanging plate, an extension rod is provided at the end of the U-shaped connecting plate, and there are two U-shaped connecting plates and two extension rods, and the two U-shaped connecting plates and the extension rods are connected in sequence, and a U-shaped hanging ring is installed on the end of the extension rod, and the U-shaped hanging ring is connected to the power tower.

[0014] Preferably, a pressure equalizing ring is also connected to the suspension string.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The structure in the present application is suitable for large-width fittings, which can improve the stability between large-span fittings and enable the large-span fittings to have the ability to pull each other, thereby ensuring that the fittings can effectively resist the adverse effects of extreme weather when they are erected over a large span.

[0017] (2) In conjunction with the present application, the present application is equipped with connecting plate connectors between large-span hardware. Since the conductors are subjected to relatively large tension in large-span power lines, the connecting plate connectors between the suspension connecting plates can effectively disperse the tension of the conductors and evenly distribute it to each suspension connecting plate, thereby reducing the stress on a single suspension connecting plate and improving the stability of the entire system; the connecting plate connectors connect the suspension connecting plates to form a more stable structure, which helps to resist the influence of natural forces such as wind and ice load, reduce the swing and vibration of the conductors, and prevent breakage or falling off due to excessive external force.

[0018] (3) The connecting plate connector helps maintain the accurate spacing between the conductors and ensure the normal operation of the power line. The connecting plate connector supports two adjacent suspension connecting plates, so that a certain spacing is formed between the conductors installed through the suspension connecting plates. The appropriate spacing can reduce electromagnetic interference between the conductors, improve power transmission efficiency, and ensure the safe operation of the line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a double-connected plate large-span V-shaped four-connected suspension string overall structure Figure 1 .

[0020] Figure 2 The utility model is a double-connected plate large-span V-shaped four-connected suspension string overall structure Figure 2 .

[0021] Figure 3 It is a schematic diagram of the suspended connecting plate structure in the utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the suspension wire clamp in the utility model.

[0023] Figure 5 It is a side view of the suspension wire clamp in the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the hanging plate of the steamed bread in the utility model.

[0025] Figure 7 It is a side view of the hanging plate of the steamed bread in the utility model.

[0026] Figure 8This is a schematic diagram of the structure of the center link plate connector of the utility model.

[0027] Fig. 9 It is a side view of the center link plate connector of the present utility model.

[0028] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0029] 100. Suspended connecting plate; 101. Plate arm; 102. Crossbeam plate; 1021. Connecting piece; 1022. First arc rib; 1023. Triangular beam plate; 1024. Rectangular beam plate; 103. Suspended wire clamp; 1031. Lower wire sleeve; 1032. Upper wire sleeve; 1033. Screw hole seat; 1034. Connecting plate; 104. Guard wire; 105. Wotou hanging plate; 1051. Connecting buckle; 1052. Hanging joint; 1053. Second arc rib; 106. Connecting plate connector; 1061. Support plate; 1062. Formwork; 107. Suspended string; 1071. Arcing angle; 1072. Ball head hanging plate; 1073. U-shaped connecting plate; 1074. Extension rod; 1075. U-shaped hanging ring; 1076. Pressure equalizing ring. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0033] Figure 1The structure diagram of the double-span V-shaped four-link suspension string in this embodiment includes a plurality of suspension link plates 100 arranged in parallel with each other, and the suspension link plates 100 arranged relatively are equipped with link plate connectors 106 for connection; the suspension link plate 100 in this embodiment is a key component connecting the power conductor and the supporting structure, transmitting the tension of the conductor to the tower to ensure that the conductor remains stable under external forces such as wind load and ice load. Therefore, in order to further improve the mechanical capacity of the suspension link plate 100 in this application, the suspension link plate 100 in this application is designed to be composed of a plate arm 101 and a pair of cross beam plates 10 2, wherein a pair of cross beam plates 102 are integrally connected to both ends of a plate arm 101, and at the same time, in order to enable the suspension connecting plate 100 and the connecting plate connecting member 106 to be assembled, the present application provides bolt holes arranged in a rectangular shape at the connection between the plate arm 101 and the cross beam plate 102, and the connecting plate connecting member 106 is fixed to the bolt holes of the suspension connecting plate 100 by bolts. Finally, in order to connect the device in the present application with cables, the present application assembles a suspension wire clamp 103 on the cross beam plate 102 through the connecting hole, and the cable is connected to the double connecting plate type suspension wire clamp assembly in the present application through the suspension wire clamp 103.

[0034] Figure 2 The structural diagram of the suspension connecting plate 100 in this embodiment is shown. In this embodiment, a pair of cross beam plates 102 and a plate arm 101 are combined to form an I-shaped structure. The shape design of the I-shaped connecting plate makes it have good mechanical stability and can withstand large mechanical loads. Since the suspension connecting plate 100 in this application needs to be loaded with a suspension clamp 103 on the one hand, and needs to be connected to an insulator string on the other hand, in order to ensure the force balance of the suspension connecting plate 100 in this application, in this embodiment, one of the cross beam plates 102 is designed as a rectangular structure as a whole to form a rectangular beam plate 1024. The rectangular beam plate 1024 has four vertices, wherein each vertex is used to connect with the suspension clamp 103, and the other two vertices are rotatably connected with a hanging plate 1021, and a steamed bread hanging plate 105 is assembled on the hanging plate 1021 by bolts. It is connected to the Wotou hanging plate 105 through the hanging piece 1021, and the hanging piece 1021 and the Wotou hanging plate 105 can be rotated at a certain angle, so that the torque problem at the connection between the cable and the double-plate type suspension wire clamp assembly in the present application caused by the wind blowing the cable can be eliminated during use; further, the Wotou hanging plate 105 is equipped with a suspension string 107, and the suspension string 107 is also connected to a voltage equalizing ring 1076. The voltage equalizing ring 1076 is a metal accessory used for power lines, mainly used to adjust the potential difference between the wires and maintain the voltage balance between the wires. On a multi-circuit line, due to the different lengths of the wires, a potential difference will be generated, which may cause current to flow between the wires and generate induced voltage and current. The voltage equalizing ring 1076 provides a low-impedance path to limit the potential difference between the wires to a minimum value, thereby reducing the generation of induced current.

[0035] Continue reading Figure 1 and Figure 2 In this embodiment, an arcing angle 1071 is installed at the other end of the suspension string 107. The shape design of the arcing angle 1071 enables it to guide the conductor to smoothly transition from one supporting point to another supporting point, which helps to reduce the conductor swing caused by external factors such as wind force and ice load, and improves the stability of the power line. A ball head hanging plate 1072 is provided at the end of the arcing angle 1071, and a U-shaped connecting plate 1073 is installed on the ball head hanging plate 1072. An extension rod 1074 is provided at the end of the U-shaped connecting plate 1073, and two U-shaped connecting plates 1073 and the extension rod 1074 are provided, and the two U-shaped connecting plates 1073 The U-shaped connecting plate 1073, the U-shaped connecting plate 1074 and the U-shaped connecting plate 1075 are connected in sequence to the extension rod 1074, and the U-shaped connecting plate 1075 is connected to the power iron tower. In this embodiment, the ball head hanging plate 1072, the U-shaped connecting plate 1073, the extension rod 1074 and the U-shaped connecting plate 1075 together form a connecting member for connecting to the iron tower, wherein the U-shaped connecting plate 1073 and the U-shaped connecting plate 1075 can be rotated at a certain angle to a certain extent while being connected, thereby eliminating the torque problem caused by wind resistance, and the extension rod 1074 is used to pull the suspension string 107 to the iron tower;

[0036] Since the other cross beam plate 102 only needs to be assembled with the suspension wire clamp 103, the cross beam plate 102 at this position is designed as a triangular structure as a whole, thereby forming a triangular beam plate 1023; specifically, in this embodiment, since it is necessary to open a hole on the suspension connecting plate 100 to facilitate the connection of the suspension wire clamp 103, and the opening of the hole will reduce the overall strength of the suspension connecting plate 100 to a certain extent, the present application is provided with a first arc rib 1022 at both ends of the same side of the rectangular beam plate 1024 and the triangular beam plate 1023, and the connection hole for assembling the suspension wire clamp 103 is opened at the center of the first arc rib 1022. The first arc rib 1022 increases the strength and rigidity of the suspension connecting plate 100 in a specific area by increasing the local thickness of the suspension connecting plate 100, while reducing the overall weight;

[0037] In summary, the suspension connecting plate 100 in this embodiment is a key component connecting the power conductor and the supporting structure. The tension of the conductor is transmitted to the tower through a mechanical connection to ensure that the conductor remains stable under external forces such as wind load and ice load, and to avoid safety accidents such as wire breakage or contact with the ground caused by excessive sagging of the conductor. When installing and maintaining power lines, the tension of the conductor needs to be precisely controlled.

[0038] further, Figure 6 and Figure 7FIG. 1 is an overall structural diagram of the steamed bread hanging plate 105. In this embodiment, a connecting buckle 1051 is provided at one end of the steamed bread hanging plate 105. The connecting buckle 1051 is used to connect with the hanging plate 1021. The other end of the steamed bread hanging plate 105 is connected with a hanging joint 1052. The hanging joint 1052 is provided with a plug hole. The steamed bread hanging plate 105 is plugged with the hanging plate 1021 through the connecting buckle 1051 and assembled with bolts. The hanging joint 1052 of the steamed bread hanging plate 105 is connected with the hanging plate 1021. Insulator strings are connected; further, in order to strengthen the connection firmness between the Wotou hanging plate 105 and the hanging piece 1021, the present application symmetrically provides a second arc rib 1053 between the connecting buckle 1051 and the hanging joint 1052 on the Wotou hanging plate 105, and the function of the second arc rib 1053 is the same as that of the first arc rib 1022. By opening a through hole at the center of the second arc rib 1053, the hanging piece 1021 is assembled on the through hole of the second arc rib 1053 by bolts;

[0039] Figures 3 to 5 The structure diagram of the suspension clamp 103 in this embodiment, the suspension clamp 103 includes a lower wire sleeve 1031 and an upper wire sleeve 1032, the upper wire sleeve 1032 covers the lower wire sleeve 1031 and is fixed through with bolts, the design of the lower wire sleeve 1031 and the upper wire sleeve 1032 enables the suspension clamp 103 to be opened, so as to be easily sleeved on the cable, the upper wire sleeve 1032 is provided with a screw hole seat 1033 on the upper surface, the upper wire sleeve 1032 is connected with a connecting plate 1034 by means of the screw hole seat 1033, the connecting plate 1034 and the screw hole seat 1033 are connected by bolts, and the suspension clamp 103 can be connected to the suspension connecting plate 100 through the suspension clamp 103, and the cable is connected When the wire is connected to the bracket 1031, a protective wire 104 is provided between the lower wire sleeve 1031 and the upper wire sleeve 1032. The protective wire 104 wraps the connection between the cable and the suspension clamp 103 to protect the wire from direct damage by external factors. In this embodiment, the suspension clamp 103 firmly fixes the wire in a specified position by mechanical clamping to prevent the wire from being displaced or slipping under the action of external forces such as wind and ice load, provides necessary support for the wire, reduces the free swing of the wire, thereby reducing fatigue damage caused by swinging, and prolongs the service life of the wire. By limiting the swing range of the wire, the suspension clamp helps to reduce friction and wear between the wire and the bracket, thereby protecting the wire from premature damage.

[0040] See also Figure 8 and Fig. 9In a large-span power line, the conductor is subjected to a large tension, so the present application is provided with a connecting plate connector 106, which can effectively disperse the tension of the conductor and evenly distribute it to each suspension connecting plate 100, thereby reducing the force on a single suspension connecting plate 100 and improving the stability of the entire system. Specifically, the connecting plate connector 106 is composed of a support plate 1061 and a template 1062 integrally connected to both ends of the support plate 1061. The template 1062 is arranged in a rectangular shape and has a plurality of screw holes. When the connecting plate connector 106 is assembled on the suspension connecting plate 100, the screw holes coincide with the bolt holes, and the template 1062 is attached to the side wall of the suspension connecting plate 100 and fixed with bolts.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A double-connected plate large-span V-shaped four-connected suspension string, comprising a plurality of suspension connecting plates (100) arranged in parallel with each other, wherein connecting plate connectors (106) are arranged between the oppositely arranged suspension connecting plates (100) for connection, Features: The suspension connecting plate (100) is composed of a plate arm (101) and a crossbeam plate (102) integrally connected to both ends of the plate arm (101); a pair of the crossbeam plates (102) and the plate arm (101) together form an I-shaped structure, wherein one of the crossbeam plates (102) is in the shape of a triangle to form a triangular beam plate (1023), and the other crossbeam plate (102) is in the shape of a rectangle to form a rectangular beam plate (1024); both crossbeam plates (102) are equipped with a suspension wire clamp (103); the other end of the crossbeam plate (102) with a rectangular structure is also rotatably connected to a hanging plate (1021); a steamed bread hanging plate (105) is installed on the hanging plate (1021) via bolts; a suspension string (107) is installed on the steamed bread hanging plate (105); and an arcing angle (1071) is installed on the other end of the suspension string (107); The connecting plate connecting member (106) is composed of a support plate (1061) and a template (1062) integrally connected to both ends of the support plate (1061), and a plurality of screw holes are provided on the template (1062); bolt holes arranged in a rectangular shape are provided at the connection between the plate arm (101) and the cross beam plate (102), and the template (1062) is fitted at the connection between the plate arm (101) and the cross beam plate (102) so that the screw holes overlap with the bolt holes, and is fixed by bolts.

2. The double-joint-plate large-span V-shaped quadruple suspension string according to claim 1 is characterized in that: The first arc ribs (1022) are provided at both ends of the same side of the triangular beam plate (1023) and the rectangular beam plate (1024), a connection hole is provided at the center of the first arc rib (1022), and the suspension connecting plate (100) is assembled with the suspension wire clamp (103) by bolt fixing through the connection hole.

3. The double-joint-plate large-span V-shaped quadruple suspension string according to claim 2 is characterized in that: A connecting buckle (1051) is provided at one end of the steamed bread hanging plate (105), and a hanging joint (1052) is connected to the other end of the steamed bread hanging plate (105). A plug hole is provided on the hanging joint (1052). The steamed bread hanging plate (105) is plugged into the hanging plate (1021) via the connecting buckle (1051) and assembled using bolts. The hanging joint (1052) of the steamed bread hanging plate (105) is connected to the insulator string.

4. The double-jointed large-span V-shaped quadruple suspension string according to claim 3 is characterized by: A second arc rib (1053) is symmetrically arranged between the connecting buckle (1051) and the hanging joint (1052) on the cornbread hanging plate (105), and a through hole for assembling a bolt is opened at the center of the second arc rib (1053).

5. The double-jointed large-span V-shaped quadruple suspension string according to claim 1 is characterized in that: The suspension wire clamp (103) comprises a lower wire sleeve (1031) and an upper wire sleeve (1032); the upper wire sleeve (1032) covers the lower wire sleeve (1031) and is fixed through the lower wire sleeve by bolts; a screw hole seat (1033) is provided on the upper surface of the upper wire sleeve (1032); the upper wire sleeve (1032) is connected to a connecting plate (1034) by means of the screw hole seat (1033); and the connecting plate (1034) and the screw hole seat (1033) are connected by bolts.

6. The double-joint-plate large-span V-shaped quadruple suspension string according to claim 5 is characterized in that: A protective wire (104) is provided between the lower wire sleeve (1031) and the upper wire sleeve (1032), and the protective wire (104) wraps around the connection between the cable and the suspension wire clamp (103).

7. The double-jointed large-span V-shaped quadruple suspension string according to claim 1 is characterized by: The end of the arcing horn (1071) is equipped with a ball head hanging plate (1072), a U-shaped connecting plate (1073) is installed on the ball head hanging plate (1072), an extension rod (1074) is provided at the end of the U-shaped connecting plate (1073), and two U-shaped connecting plates (1073) and two extension rods (1074) are provided, and the two U-shaped connecting plates (1073) and the extension rods (1074) are connected in sequence, and a U-shaped hanging ring (1075) is installed on the extension rod (1074) at the end, and the U-shaped hanging ring (1075) is connected to the power tower.

8. The double-joint-plate large-span V-shaped quadruple suspension string according to claim 1 is characterized by: The suspension string (107) is also connected to a pressure equalizing ring (1076).

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