Coupling lever, gas-insulated switchgear, and gas-insulated switchgear adjustment method

Abstract

To obtain a connecting lever capable of suppressing interference with other components arranged around the connecting lever.SOLUTION: A connecting lever 8 includes a connecting lever main body 8a that can be attached to a first member and can be attached to a second member that is disposed away from the first member in the first direction X, a pin 8b that can connect the connecting lever main body 8a and the second member and has a screw hole 8b1 that penetrates in the first direction X, and a bolt 8c that is inserted into the screw hole 8b1 and is provided on the connecting lever main body 8a so as to be rotatable around its axis but immovable in the first direction X. The position of the pin 8b in the first direction X can be adjusted by turning the bolt 8c.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a connecting lever, a gas-insulated switchgear including the connecting lever, and a method for adjusting the gas-insulated switchgear. [Background technology]

[0002] Conventionally, there has been known a gas-insulated switchgear including a switchgear, an operating device that generates a driving force for opening and closing the switchgear, and an operating mechanism that transmits the driving force generated by the operating device to the switchgear to enable the switchgear to be opened and closed. The operating device includes an output shaft, etc. The operating mechanism includes a drive shaft, a link, a connecting lever, etc. The connecting lever is attached to a shaft member such as the drive shaft or the output shaft, and is also attached to a link that is positioned apart from the shaft member. The connecting lever is attached to the link via a pin. Hereinafter, the portion of the connecting lever that is attached to the shaft member will be referred to as the shaft member attachment portion.

[0003] The positions of the shaft member and the link in a gas-insulated switchgear may vary from product to product due to unavoidable dimensional tolerances, assembly tolerances, etc., and therefore the distance from the shaft member to the link (hereinafter sometimes simply referred to as the distance) may also vary from product to product. For this reason, to accommodate different distances, a variety of connecting levers with different lengths from the shaft member mounting portion to the pin (hereinafter sometimes simply referred to as the length) are prepared. After assembling the shaft member and link to the gas-insulated switchgear, a connecting lever with a length that matches the distance for each product is typically selected from the various connecting levers and used, while the other connecting levers whose lengths do not match the distance for each product are discarded. This conventional method poses problems such as increased environmental impact due to the disposal of connecting levers and increased workload due to selecting a connecting lever with the optimal length. To solve these problems, an adjustable connecting lever with adjustable length has been developed.

[0004] For example, Patent Document 1 discloses a connecting lever including a connecting lever body having a shaft member mounting portion and a threaded outer surface, two nuts that are threadedly engaged with the threaded grooves and positioned on either side of the shaft member mounting portion, and a pin that is attached to the connecting lever body at a position away from the two nuts and connects the connecting lever body to a link. With the connecting lever disclosed in Patent Document 1, the connecting lever and pin can be moved relative to the shaft member mounting portion and the nuts by turning the nuts, thereby moving the pin closer to or further away from the shaft member mounting portion (shaft member). Therefore, the length can be adjusted to suit the distance required for each product, and a single connecting lever can accommodate a variety of distances, solving the above-mentioned problem. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 54-67257 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the connecting lever disclosed in Patent Document 1, when the nut is turned, the lever body moves relative to the nut, so if the length is adjusted to fit the distance for each product, the amount of protrusion of the lever body beyond the nut varies for each product. This makes it impossible to predict the amount of protrusion, and there is a possibility that interference may occur with other parts arranged around the connecting lever.

[0007] The present disclosure has been made in view of the above, and has an object to provide a connecting lever that can suppress interference with other components arranged around the connecting lever. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems and achieve the object, the connecting lever according to the present disclosure includes a connecting lever body that can be attached to a first member and a second member that is disposed apart from the first member in a first direction, a pin that can connect the connecting lever body and the second member and has a threaded hole that penetrates in the first direction, and a bolt that is inserted into the threaded hole and is provided on the connecting lever body so as to be rotatable around its axis but immovable in the first direction. The position of the pin in the first direction can be adjusted by turning the bolt. [Effects of the Invention]

[0009] The connecting lever according to the present disclosure has the advantage of being able to suppress interference with other components arranged around the connecting lever. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a front partial cross-sectional view showing a configuration of a gas-insulated switchgear according to a first embodiment; [Figure 2] FIG. 1 is a side view showing a configuration of a gas-insulated switchgear according to a first embodiment; [Figure 3] FIG. 10 is a side view showing the configuration of the connecting lever in the first embodiment. [Figure 4] FIG. 10 is a side view showing the configuration of a connecting lever body according to the first embodiment. [Figure 5] Partially enlarged side view of Figure 3 [Figure 6] A cross-sectional view taken along line VI-VI shown in FIG. 5. [Figure 7] FIG. 1 is a front view showing a configuration of a pin according to the first embodiment; [Figure 8] FIG. 1 is a side view showing a configuration of a pin according to the first embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0011] A connecting lever, a gas-insulated switchgear, and a method for adjusting a gas-insulated switchgear according to an embodiment will be described in detail below with reference to the drawings.

[0012] Embodiment 1 FIG. 1 is a partial front cross-sectional view showing the configuration of a gas-insulated switchgear 100 according to a first embodiment. FIG. 2 is a side view showing the configuration of the gas-insulated switchgear 100 according to the first embodiment. As shown in FIGS. 1 and 2, the gas-insulated switchgear 100 includes a single-phase disconnecting switch 1 as a switch, an operating device 2 that generates a driving force for opening and closing the disconnecting switch 1, and an operating mechanism 3 that transmits the driving force generated by the operating device 2 to the single-phase disconnecting switch 1 to enable the opening and closing operation of the disconnecting switch 1. The operating mechanism 3 has a drive shaft 4, a connecting lever 5, a link 6, and a connecting lever 7. Note that FIG. 1 illustrates a cross-sectional configuration of the disconnecting switch 1, and illustrates a front configuration of the operating device 2 and the operating mechanism 3.

[0013] The disconnector 1 has a container 1a in which insulating gas is sealed, and a switching unit 1b housed in the container 1a. The container 1a is a hollow metal tank. The switching unit 1b has a movable contact 1c and a lever 1d. The lever 1d connects the movable contact 1c to a drive shaft 4. One axial end of the lever 1d is attached to the movable contact 1c. The other axial end of the lever 1d is attached to the drive shaft 4.

[0014] The drive shaft 4 airtightly penetrates the side surface of the container 1a. In this embodiment, the drive shaft 4 airtightly penetrates one side surface of the container 1a, but it may also airtightly penetrate two opposing side surfaces of the container 1a. The drive shaft 4 is rotatably supported in the container 1a and is rotatable around its axis. One axial end of the drive shaft 4 is disposed inside the container 1a and attached to the other axial end of the lever 1d. The other axial end of the drive shaft 4 is attached to one axial end of the link 6 via the connecting lever 5. The other axial end of the link 6 is attached to the output shaft 2a of the operating device 2 via the connecting lever 7. The output shaft 2a is rotatable around its axis. Because the connecting lever 5 and the connecting lever 7 have the same configuration, they may be collectively referred to as the connecting lever 8 hereinafter when there is no need to distinguish between them. Furthermore, the drive shaft 4 and the output shaft 2a may be collectively referred to as the shaft member 9 hereinafter.

[0015] The operating device 2 generates a driving force for rotationally driving the drive shaft 4, and outputs the driving force as a rotational force of the output shaft 2a. The driving force generated by the operating device 2 is transmitted to the drive shaft 4 via the output shaft 2a, the connecting lever 7, the link 6, and the connecting lever 5, and when the drive shaft 4 is rotationally driven, the lever 1d rotates around the drive shaft 4. The movable contact 1c is driven in association with the rotation of the lever 1d. When the movable contact 1c comes into contact with or separates from a fixed contact (not shown), the disconnector 1 is closed or opened.

[0016] Next, the connecting lever 8 will be described in detail with reference to Fig. 2 to Fig. 8. Fig. 3 is a side view showing the configuration of the connecting lever 8 in the first embodiment. Fig. 4 is a side view showing the configuration of the connecting lever main body 8a in the first embodiment. Fig. 5 is a partially enlarged side view of Fig. 3. Fig. 6 is a cross-sectional view taken along line VI-VI shown in Fig. 5. Fig. 7 is a front view showing the configuration of the pin 8b in the first embodiment. Fig. 8 is a side view showing the configuration of the pin 8b in the first embodiment.

[0017] As shown in FIG. 2, the connecting lever 8 is a member that connects the shaft member 9, which is a first member, and the link 6, which is a second member. As shown in FIG. 3, the connecting lever 8 includes a connecting lever body 8a, a pin 8b, a bolt 8c, and a nut 8d. The connecting lever 8 has a mounting hole 8e for mounting to the shaft member 9 and a pin 8b for mounting to the link 6. The center C1 of the mounting hole 8e and the center C2 of the pin 8b are spaced apart from each other. Hereinafter, directions will be described using a right-handed XYZ coordinate system. The X-axis direction is the direction in which the center C1 of the mounting hole 8e is spaced apart from the center C2 of the pin 8b and is parallel to the length direction of the connecting lever body 8a. The Y-axis direction is perpendicular to the X-axis direction and parallel to the thickness direction of the connecting lever body 8a. The Z-axis direction is perpendicular to both the X-axis and Y-axis directions and parallel to the width direction of the connecting lever body 8a. Hereinafter, the X-axis direction, the Y-axis direction, and the Z-axis direction will be referred to as the first direction X, the second direction Y, and the third direction Z. The center C1 of the mounting hole 8e and the center C2 of the pin 8b are located on the same straight line along the first direction X.

[0018] The connecting lever body 8a is attachable to the shaft member 9 and to the link 6 disposed away from the shaft member 9 in the first direction X. As shown in FIG. 4, the connecting lever body 8a has an attachment hole 8e, a first arrangement hole 8f, a second arrangement hole 8g, a third arrangement hole 8h, and a slit 8i. The connecting lever body 8a has a base end face 8j and a tip end face 8k disposed away from the base end face 8j in the first direction X. The connecting lever body 8a also has a side face 8m connecting one end of the base end face 8j and the tip end face 8k in the third direction Z, and a side face 8n connecting the other end of the base end face 8j and the tip end face 8k in the third direction Z. Furthermore, as shown in Figure 6, the connecting lever main body 8a has a side surface 8o that connects one end of the base end surface 8j (not shown in Figure 6) and the tip end surface 8k in the second direction Y, and a side surface 8p that connects the other end of the base end surface 8j and the tip end surface 8k in the second direction Y.

[0019] The mounting hole 8e shown in Fig. 4 is a hole for mounting the shaft member 9 shown in Fig. 2. The mounting hole 8e is located on the connecting lever main body 8a at a position closer to the base end face 8j than the center in the first direction X. The mounting hole 8e penetrates the connecting lever main body 8a in the second direction Y. In this embodiment, the shape of the mounting hole 8e when viewed in the second direction Y is hexagonal, but this may be changed as appropriate to match the outer shape of the shaft member 9.

[0020] The first arrangement hole 8f is a hole in which the pin 8b shown in FIG. 5 is arranged. A part of the bolt 8c shown in FIG. 5 is also arranged in the first arrangement hole 8f. The first arrangement hole 8f is arranged away from the mounting hole 8e in the first direction X. The first arrangement hole 8f is arranged in a position on the connecting lever main body 8a closer to the tip surface 8k than the center in the first direction X. The first arrangement hole 8f penetrates the connecting lever main body 8a in the second direction Y. In this embodiment, the shape of the first arrangement hole 8f when viewed along the second direction Y is oval, but this may be changed as appropriate. The first arrangement hole 8f is an elongated hole extending in the first direction X.

[0021] As shown in FIG. 5, the length dimension D1 of the first arrangement hole 8f along the first direction X is greater than the thickness dimension D2 of the pin 8b. The inner surface of the first arrangement hole 8f has a restriction surface 8f1 that restricts movement of the pin 8b in the first direction X. The restriction surface 8f1 constitutes both end surfaces of the inner surface of the first arrangement hole 8f in the first direction X. The restriction surface 8f1 is a curved surface that is convex in a direction away from the pin 8b. In this embodiment, the restriction surface 8f1 is an arcuate surface with a curvature equivalent to that of the outer peripheral surface of the pin 8b.

[0022] The second arrangement hole 8g is a hole in which the bolt 8c is arranged. As shown in FIG. 4, the second arrangement hole 8g is arranged away from the mounting hole 8e in the first direction X. The second arrangement hole 8g is arranged at a position on the connecting lever body 8a closer to the tip surface 8k than the center in the first direction X. Although the second arrangement hole 8g is divided by the first arrangement hole 8f, it extends intermittently in the first direction X from the tip surface 8k of the connecting lever body 8a toward the mounting hole 8e. The second arrangement hole 8g and the first arrangement hole 8f are in communication with each other. The second arrangement hole 8g includes a countersunk hole 8g1 in which the head of the bolt 8c is arranged and a drilled hole 8g2 in which the shank of the bolt 8c is arranged.

[0023] The countersunk hole 8g1 is disposed closer to the mounting hole 8e than the drilled hole 8g2 in the first direction X. As shown in Fig. 5, the inner surface of the countersunk hole 8g1 comes into contact with the head of the bolt 8c and functions as a restricting surface that restricts movement of the bolt 8c in the first direction X.

[0024] As shown in FIG. 4 , the drilled hole 8g2 extends intermittently in the first direction X from the tip end surface 8k of the connecting lever body 8a toward the countersunk hole 8g1. One end of the drilled hole 8g2 in the first direction X communicates with the countersunk hole 8g1. The other end of the drilled hole 8g2 in the first direction X opens to the tip end surface 8k of the connecting lever body 8a. The drilled hole 8g2 is divided into two in the first direction X by the first arrangement hole 8f. The drilled hole 8g2 includes a first drilled hole 8g3 formed on one side in the first direction X across the first arrangement hole 8f, and a second drilled hole 8g4 formed on the other side in the first direction X across the first arrangement hole 8f. In other words, the first arrangement hole 8f is located between the first drilled hole 8g3 and the second drilled hole 8g4. The first drilled hole 8g3 is formed from the countersunk hole 8g1 to the first arrangement hole 8f. The second drilled hole 8g4 is formed from the first arrangement hole 8f to the tip end surface 8k of the connecting lever body 8a. The first drilled hole 8g3 and the second drilled hole 8g4 are in communication with the first arrangement hole 8f.

[0025] As shown in Figure 6, the countersunk hole 8g1 and the first drilled hole 8g3 open to the side surface 8p of the connecting lever body 8a and are closed to the side surface 8o of the connecting lever body 8a. The second drilled hole 8g4 is closed to both the side surfaces 8o and 8p of the connecting lever body 8a. When placing the bolt 8c inside the connecting lever body 8a, the bolt 8c can be inserted into the connecting lever body 8a through the opening of the countersunk hole 8g1 and the opening of the first drilled hole 8g3. The closed portions of the second drilled hole 8g4 on the side surfaces 8o and 8p of the connecting lever body 8a serve to prevent the bolt 8c placed inside the connecting lever body 8a from falling out.

[0026] The third arrangement hole 8h shown in FIG. 4 is a hole in which a bolt (not shown) is placed to immobilize the shaft member 9 relative to the connecting lever 8. The third arrangement hole 8h is located on the opposite side of the mounting hole 8e from the first arrangement hole 8f and the second arrangement hole 8g in the first direction X. The third arrangement hole 8h is located away from the mounting hole 8e in the first direction X. The third arrangement hole 8h is located closer to the base end surface 8j than the mounting hole 8e. Although the third arrangement hole 8h is divided by the slit 8i, it extends intermittently in the third direction Z from the side surface 8m to the side surface 8n of the connecting lever main body 8a. One end of the third arrangement hole 8h in the third direction Z opens to the side surface 8m of the connecting lever main body 8a. The other end of the third arrangement hole 8h in the third direction Z opens to the side surface 8n of the connecting lever main body 8a.

[0027] The third arrangement hole 8h is divided into two in the third direction Z by the slit 8i. The third arrangement hole 8h includes a first hole 8h1 formed on one side in the third direction Z across the slit 8i, and a second hole 8h2 formed on the other side in the third direction Z across the slit 8i. The first hole 8h1 is a threaded hole into which the shank of a bolt (not shown) is disposed. The first hole 8h1 is formed from the side surface 8m of the connecting lever main body 8a to the slit 8i. The second hole 8h2 is a drilled hole into which the head of a bolt (not shown) is disposed. The second hole 8h2 is formed from the slit 8i to the side surface 8n of the connecting lever main body 8a. The first hole 8h1 and the second hole 8h2 are in communication with the slit 8i.

[0028] The slit 8i is disposed adjacent to the mounting hole 8e in the first direction X. The slit 8i is disposed closer to the base end surface 8j than the mounting hole 8e. The slit 8i extends in the first direction X from the base end surface 8j of the connecting lever main body 8a to the mounting hole 8e. One end of the slit 8i in the first direction X opens to the base end surface 8j of the connecting lever main body 8a. The other end of the slit 8i in the first direction X communicates with the mounting hole 8e. A portion of the slit 8i is located between the first hole 8h1 and the second hole 8h2.

[0029] As shown in FIG. 2, the pin 8b is a rod pin capable of connecting the connecting lever main body 8a and the link 6. As shown in FIG. 3, the pin 8b is disposed in the first arrangement hole 8f and is disposed away from the mounting hole 8e in the first direction X. As shown in FIGS. 7 and 8, the shape of the pin 8b is cylindrical in this embodiment, but may be modified as appropriate. The pin 8b has a screw hole 8b1 formed therethrough in the first direction X. The screw hole 8b1 is formed at the center of the pin 8b in the second direction Y. As shown in FIG. 6, a bolt 8c is screwed into the screw hole 8b1. Both ends of the pin 8b in the second direction Y protrude outside the connecting lever main body 8a through openings in the second arrangement hole 8g that open to the side surfaces 8o and 8p.

[0030] The bolt 8c is inserted into the screw hole 8b1 and is provided on the connecting lever main body 8a so as to be rotatable about its axis but immovable in the first direction X. The axial direction of the bolt 8c coincides with the first direction X. The bolt 8c is disposed in the first arrangement hole 8f and the second arrangement hole 8g. The tip of the shank of the bolt 8c protrudes outside the connecting lever main body 8a through an opening in the tip surface 8k of the second arrangement hole 8g.

[0031] As shown by arrow B in FIG. 5, the position of pin 8b in the first direction X can be adjusted by turning bolt 8c in the direction of arrow C. For example, when viewing the connecting lever 8 from the direction of arrow A in FIG. 5, turning bolt 8c clockwise moves pin 8b toward one side of the first direction X (to the right on the paper), and the position of pin 8b in the first direction X approaches the mounting hole 8e shown in FIG. 3. On the other hand, when viewing the connecting lever 8 from the direction of arrow A, turning bolt 8c counterclockwise moves pin 8b toward the other side of the first direction X (to the left on the paper), and the position of pin 8b in the first direction X moves away from the mounting hole 8e. Even when pin 8b moves in the first direction X, the position of bolt 8c in the first direction X does not change. In other words, the bolt 8c rotates at the same position in the first direction X, and the positional relationship between connecting lever body 8a and bolt 8c does not change. In this embodiment, only the position of the pin 8b of the connecting lever 8 in the first direction X can be adjusted by turning the bolt 8c.

[0032] The nut 8d is a member that is screwed onto the bolt 8c to fix the bolt 8c so that it cannot rotate. After adjusting the position of the pin 8b in the first direction X, the nut 8d is screwed onto the bolt 8c and tightened, thereby fixing the bolt 8c so that it cannot rotate, and therefore fixing the position of the pin 8b so that it cannot move in the first direction X. In Fig. 5, the nut 8d before being screwed onto the bolt 8c is shown by a solid line, and the nut 8d after being screwed onto the bolt 8c is shown by a dashed dotted line.

[0033] Next, a method for adjusting the gas-insulated switchgear 100 according to this embodiment will be described.

[0034] The adjustment method for the gas-insulated switchgear 100 shown in Fig. 2 includes a first installation step, an adjustment step, a fixing step, and a second installation step. Before performing the adjustment method for the gas-insulated switchgear 100, the members other than the connecting lever 8, i.e., the drive shaft 4, the output shaft 2a, the link 6, and other members, are pre-assembled in the appropriate positions of the gas-insulated switchgear 100. This makes it possible to determine the distance D from the shaft member 9 to the link 6.

[0035] The first mounting step is a step of mounting the connecting lever 8 to the shaft member 9. In the first mounting step, after the shaft member 9 is placed in the mounting hole 8e, a bolt (not shown) is screwed into the third arrangement hole 8h. This narrows the slit 8i shown in FIG. 3. By performing the first mounting step, the shaft member 9 is fixed to the connecting lever 8 so as not to move in the second direction Y (the axial direction of the shaft member 9). Furthermore, by performing the first mounting step, the length L required to connect the shaft member 9 and the link 6 can be determined.

[0036] As shown in FIG. 3, the adjustment process is a process of adjusting the position of pin 8b in the first direction X by turning bolt 8c. In the adjustment process, by adjusting the position of pin 8b in the first direction X, it is possible to adjust the length L in the first direction X from the center C1 of mounting hole 8e to the center C2 of pin 8b. That is, in the adjustment process, by turning bolt 8c, only pin 8b is moved relative to mounting hole 8e, and only pin 8b can be moved closer to or further away from mounting hole 8e. In the adjustment process, length L is adjusted to match distance D from shaft member 9 to link 6 shown in FIG. 2.

[0037] As shown in FIG. 5 , the fixing process is a process in which, after adjusting the position of the pin 8b in the first direction X, the nut 8d is screwed onto the bolt 8c and tightened to fix the position of the pin 8b in the first direction X. In the fixing process, the nut 8d is screwed onto the tip of the shank of the bolt 8c, and while rotating the nut 8d in the direction of tightening, the nut 8d is advanced in one direction in the first direction X toward the head of the bolt 8c. When the nut 8d is advanced in the first direction X toward the head of the bolt 8c, it comes into contact with the tip surface 8k of the connecting lever main body 8a and stops. By performing the fixing process, the bolt 8c can be fixed so that it cannot rotate, and therefore the position of the pin 8b in the first direction X can be fixed so that it cannot move.

[0038] 2, the second attachment step is a step of attaching the connecting lever 8 to the link 6 via the pin 8b. By performing the second attachment step, the shaft member 9 and the link 6 are connected via the connecting lever 8.

[0039] If the worker knows in advance the length L required to connect the shaft member 9 and the link 6, the first attachment step may be performed after the adjustment step and the fixing step.

[0040] Next, the effects of the connecting lever 8 and the gas-insulated switchgear 100 according to this embodiment will be described.

[0041] In this embodiment, as shown in FIG. 2, the connecting lever 8 includes a connecting lever main body 8a that can be attached to the shaft member 9 and the link 6. Also, in this embodiment, as shown in FIGS. 2 and 3, the connecting lever 8 includes a pin 8b that can connect the connecting lever main body 8a and the link 6 and has a threaded hole 8b1 that penetrates in the first direction X. Also, in this embodiment, as shown in FIG. 3, the connecting lever 8 includes a bolt 8c that is inserted into the threaded hole 8b1 and is attached to the connecting lever main body 8a so that it can rotate about the axis and cannot move in the first direction X. Also, in this embodiment, as shown in FIG. 5, the position of the pin 8b in the first direction X can be adjusted by turning the bolt 8c. With this configuration, by adjusting the position of the pin 8b in the first direction X, the length L from the center C1 of the mounting hole 8e to the center C2 of the pin 8b, shown in FIG. 3, can be adjusted to match the distance D from the shaft member 9 to the link 6, shown in FIG. 2. In other words, the length L can be adjusted to match the distance D for each product, and a single connecting lever 8 can accommodate a variety of distances D. Conventionally, when a variety of connecting levers with different lengths (non-adjustable connecting levers) are used, problems arise such as an increase in the environmental burden due to the disposal of connecting levers and an increase in the workload due to selecting a connecting lever with the optimal length, but this embodiment does not cause such problems. Also, when a non-adjustable connecting lever is used, if the length does not match the distance for each product, it is necessary to remove and reassemble the connecting lever, but this embodiment can reduce such trouble.

[0042] 2 and 3, when adjusting length L to match distance D for each product, turning bolt 8c moves only pin 8b relative to mounting hole 8e, and therefore the position of bolt 8c in first direction X does not change. As a result, the positional relationship between connecting lever main body 8a and bolt 8c does not change, and the amount of bolt 8c protruding from tip end surface 8k of connecting lever main body 8a remains constant. Therefore, because the amount of bolt 8c protruding from tip end surface 8k of connecting lever main body 8a can be predicted, interference with other components arranged around connecting lever 8 can be reduced.

[0043] In this embodiment, as shown in FIG. 5 , the connecting lever main body 8a is formed with a first arrangement hole 8f, which is an elongated hole in which the pin 8b is arranged. The length dimension D1 of the first arrangement hole 8f along the first direction X is greater than the thickness dimension D2 of the pin 8b. The inner surface of the first arrangement hole 8f has a restriction surface 8f1 that restricts movement of the pin 8b in the first direction X. With this configuration, the position of the pin 8b in the first direction X can be adjusted within the range of the first arrangement hole 8f, and excessive movement of the pin 8b can be restricted. In addition, in this embodiment, the restriction surface 8f1 is a curved surface that is convex in a direction away from the pin 8b and is an arcuate surface with a curvature equivalent to the curvature of the outer peripheral surface of the pin 8b. Therefore, the outer peripheral surface of the pin 8b and the restriction surface 8f1 are in surface contact with each other, thereby preventing problems such as scratches on the pin 8b and the restriction surface 8f1.

[0044] Next, a modification of the first embodiment will be described.

[0045] The gas-insulated switchgear 100 shown in FIG. 1 includes a disconnector 1, an operating device 2, and an operating mechanism 3, but may also include other components such as a circuit breaker and a bus bar.

[0046] As shown in Fig. 1, in this embodiment, the switch is a disconnecting switch 1, but it may be a grounding switch, a disconnecting switch with a grounding switch, etc. Here, a disconnecting switch with a grounding switch is one in which a grounding switch is provided inside the container of the disconnecting switch.

[0047] 1, in the present embodiment, the case where the connecting lever 8 is applied to the gas-insulated switchgear 100 including the single-phase disconnector 1 has been exemplified, but the present invention is not limited to this. That is, the connecting lever 8 may also be applied to the gas-insulated switchgear 100 including the three-phase disconnector 1. In such a configuration, for example, the three-phase disconnector 1 may be opened and closed collectively using a single operating device 2, a single drive shaft 4 arranged across the three-phase disconnector 1, a link 6 connecting the drive shaft 4 and the operating device 2, and two connecting levers 5, 7.

[0048] 5, the shape of the first arrangement hole 8f when viewed along the second direction Y is oval in the present embodiment, but may be rectangular, etc. That is, the restriction surface 8f1 is an arc surface in the present embodiment, but may be a flat surface extending linearly in the third direction Z.

[0049] As shown in Figure 6, in this embodiment, the countersunk hole 8g1 and the first drilled hole 8g3 open to the side surface 8p of the connecting lever main body 8a, but it is sufficient if they open to at least one of the side surfaces 8o, 8p of the connecting lever main body 8a.

[0050] 6, in this embodiment, the second drilled hole 8g4 is closed on both the side surfaces 8o, 8p of the connecting lever body 8a, but it may be open on at least one of the side surfaces 8o, 8p of the connecting lever body 8a so as to communicate with the opening of the countersunk hole 8g1 and the opening of the first drilled hole 8g3. In this configuration, after the bolt 8c is placed inside the connecting lever body 8a, the openings of the countersunk hole 8g1, the first drilled hole 8g3, and the second drilled hole 8g4 that open on the side surfaces 8o, 8p of the connecting lever body 8a may be closed with covers.

[0051] The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies, and parts of the configurations may be omitted or modified without departing from the spirit of the invention. [Explanation of symbols]

[0052] 1 disconnector, 1a container, 1b opening / closing part, 1c movable contact, 1d lever, 2 operating device, 2a output shaft, 3 operating mechanism, 4 drive shaft, 5, 7, 8 connecting lever, 6 link, 8a connecting lever body, 8b pin, 8b1 screw hole, 8c bolt, 8d nut, 8e mounting hole, 8f first arrangement hole, 8f1 regulating surface, 8g second arrangement hole, 8g1 counterbore hole, 8g2 drilled hole, 8g3 first drilled hole, 8g4 second drilled hole, 8h third arrangement hole, 8h1 first hole, 8h2 second hole, 8i slit, 8j base end surface, 8k tip surface, 8m, 8n, 8o, 8p side surface, 9 shaft member, 100 gas-insulated switchgear.

Claims

1. a connecting lever body that can be attached to a first member and can be attached to a second member that is spaced apart from the first member in a first direction; a pin capable of connecting the connecting lever body and the second member and having a screw hole penetrating in the first direction; a bolt inserted into the screw hole and provided on the connecting lever body so as to be rotatable around the axis and immovable in the first direction; Equipped with A connecting lever, wherein the position of the pin in the first direction is adjustable by turning the bolt.

2. The connecting lever body is formed with a long hole in which the pin is disposed, a length dimension of the elongated hole along the first direction is greater than a thickness dimension of the pin; 2. The connecting lever according to claim 1, wherein an inner surface of the elongated hole has a restricting surface that restricts movement of the pin in the first direction.

3. A first member; a second member disposed spaced apart from the first member in a first direction; a connecting lever according to claim 1 or 2 that connects the first member and the second member; A gas-insulated switchgear comprising:

4. a connecting lever that connects the first member and the second member, wherein the connecting lever comprises a connecting lever body that can be attached to the first member and also to the second member, a pin that can connect the connecting lever body and the second member and that has a threaded hole that penetrates in the first direction, and a bolt that is inserted into the threaded hole and is provided on the connecting lever body so as to be rotatable in an axis direction and immovable in the first direction, and wherein the position of the pin in the first direction can be adjusted by turning the bolt, a first attachment step of attaching the connecting lever to the first member; an adjusting step of adjusting the position of the pin in the first direction by turning the bolt; a fixing step of fixing the position of the pin in the first direction by screwing a nut onto the bolt and tightening the nut after adjusting the position of the pin in the first direction; a second attachment step of attaching the connecting lever to the second member via the pin; 1. A method for adjusting gas-insulated switchgear, comprising:

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