Closing indicating device for isolating switch and isolating switch

Abstract

The utility model belongs to the technical field of switch state indicators, and particularly provides a switching-on indicating device for an isolating switch and the isolating switch. The switching-on indicating device comprises a static indicating part and a movable indicating part, the static indicating part is used for being installed on one side of a conductive box of the disconnecting switch, and the movable indicating part is used for being installed on a transmission flange of the disconnecting switch and rotating along with the transmission flange. The static indicating component comprises a connecting part used for being connected with the conductive box and an inward bending avoiding part forming a set included angle with the connecting part, the inward bending avoiding part is configured to extend towards one side close to the transmission flange relative to the connecting part during use, and the inward bending avoiding part is provided with an indicating structure used for being in contact with the dynamic indicating component when closing is in place. The isolating switch comprises the switching-on indicating device. According to the utility model, on the basis of not influencing the normal indication function of the closing indication device, the static indication component does not influence the normal installation of the flexible connection component of the isolation switch.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of switch state indicator, especially relates to a closing indication device for disconnecting switch and disconnecting switch. BACKGROUND

[0002] The conductive transmission part (crank arm, connecting rod, balance spring and the like) of the double-arm vertical telescopic disconnecting switch transmission mechanism is located in a closed conductive box, is connected with the insulator through a transmission flange below the guide box, and the rotation of the insulator is controlled to drive the rotation of the crank arm in the conductive box to realize the rotation of the knife switch to control the opening and closing of the switch. Under the protection of the conductive box, the disconnecting switch of this form has good rain and snow prevention, wind and sand prevention, anti-freezing and anti-cold performance, and can effectively protect the conductive transmission part. However, the transmission part located in the closed guide box makes it difficult for power station workers to directly observe whether the product is closed in place.

[0003] The patent document with the application publication number CN107026049A discloses a closing over dead point indication device for a single-column double-arm vertical telescopic disconnecting switch, which includes a dynamic indication component and a static indication component. The dynamic indication component is used to be installed on the transmission flange and rotates synchronously with the transmission flange, and the static indication component is used to be installed on the transmission box (i.e. the conductive box). When the closing is in place, the dynamic indication component rotates to the position in contact with the static indication component. The dynamic indication component and the static indication component are both located outside the transmission box, so that the closing in place of the disconnecting switch can be conveniently observed and judged.

[0004] In the indication device disclosed in the above patent document, the static indication component is basically a flat structure extending straight, which includes two parts. One part is a straight plate segment, which is used to be connected with the transmission box, and the specific connection can be achieved by bolts. The other part is a cylindrical segment, which is convex outside the transmission box to be in contact with the dynamic indication component when the closing is in place. The convexity of the cylindrical segment outside the transmission box will inevitably occupy a certain space, which will affect the normal installation of other soft connection components (wires, etc.) outside the transmission box, resulting in a relatively complicated assembly process. In addition, in the indication device disclosed in the above patent document, the dynamic indication component includes a clamp and a dynamic indication rod, and the dynamic indication rod is connected with the transmission flange through the clamp. This connection mode has a relatively complex structure, and the clamp needs to be adjusted in tightness during installation, which will also lead to a relatively complicated assembly process. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a closing indication device for disconnecting switch to solve the technical problem that the dynamic indication component of the closing indication device occupies space and affects the normal installation of soft connection components in the prior art. The utility model also aims at providing a disconnecting switch with the above closing indication device to solve the same technical problem.

[0006] To achieve the above object, the technical scheme of the isolator closing indicating device is provided by the utility model:

[0007] The isolator closing indicating device comprises a static indicating component and a dynamic indicating component, the static indicating component is used for being installed on one side of a conductive box of an isolator, the dynamic indicating component is used for being installed on a transmission flange of the isolator and rotating with the transmission flange, the static indicating component comprises a connecting part used for being connected with the conductive box and an inner bending avoiding part with a set angle with the connecting part, the inner bending avoiding part is configured to extend to the side close to the transmission flange relative to the connecting part in use, and the inner bending avoiding part is provided with an indicating structure used for contacting the dynamic indicating component when closing is in place.

[0008] As a further improvement, the connecting part and the inner bending avoiding part are integrally bent and formed into a bending structure, and the indicating structure is an indicating column connected to the inner bending avoiding part.

[0009] As a further improvement, the connecting part is provided with a perforation for a fastener to pass through to connect the static indicating component with the conductive box, and the perforation is an adaptive hole with at least two passing points for the fastener to pass through to adaptively match the error of the corresponding connecting hole on the conductive box for connecting with the fastener.

[0010] As a further improvement, the dynamic indicating component is provided with at least one mounting hole, and the isolator closing indicating device further comprises a connecting piece for connecting the dynamic indicating component with the transmission flange, and the connecting piece is used for passing through a through hole provided on the transmission flange for the connecting piece to pass through and being connected with the mounting hole.

[0011] As a further improvement, the mounting hole is a through hole and is provided with two or more than two, and the connecting piece is an open pin.

[0012] The utility model belongs to the invention of element change, and its beneficial effect is that the utility model changes the shape of the dynamic indicating component in the closing indicating device, and the static indicating component comprises an inner bending avoiding part, the inner bending avoiding part extends to the side close to the transmission flane relative to the connecting part, and the indicating structure is arranged on the inner bending avoiding part, so that the part protrudes from the conductive box, and then the soft connecting component (wire, etc.) can be normally installed, the assembly process is simplified, and the assembly efficiency is improved.

[0013] To achieve the above object, the technical scheme of the isolator closing indicating device is provided by the utility model:

[0014] The utility model relates to an isolation switch, including conducting box, transmission flange and closing indication device, closing indication device includes the static indicating part of installation in one side of conducting box and the dynamic indicating part of installation in transmission flan and can rotate with transmission flange, static indicating part includes the connecting portion for with conducting box connects and the inner bend avoidance department with the connecting portion is set up angle, and the inner bend avoidance department extends to the side close to transmission flange relative to connecting portion, and the inner bend avoidance department is equipped with the indicating structure for with dynamic indicating part contact when closing in place.

[0015] As further improvement, the connecting portion and the inner bend avoidance portion are a bending structure integrally bent and formed, and the indicating structure is an indicating column connected to the inner bend avoidance portion.

[0016] As further improvement, the connecting portion is connected to the conducting box by a fastener, the connecting portion is provided with a through hole through which the fastener passes, the conducting box is provided with a connecting hole connected to the fastener, and the through hole is an adaptive hole having at least two through points through which the fastener passes to adaptively match the error of the connecting hole.

[0017] As further improvement, the dynamic indicating portion is connected to the transmission flange by a connecting piece, the dynamic indicating portion is provided with at least one mounting hole, the transmission flange is provided with a through hole, and the connecting piece is connected to the mounting hole by passing through the through hole.

[0018] As further improvement, the mounting hole is a through hole and is provided with two or more than two, and the connecting piece is an open pin.

[0019] The utility model belongs to the invention creation of element change, and its beneficial effect is that: the utility model changes the shape of the dynamic indicating portion in the closing indication device, and different from prior art, the static indicating portion includes the inner bend avoidance portion, the inner bend avoidance portion extends to the side close to the transmission flange relative to the connecting portion, and the indicating structure is arranged on the inner bend avoidance portion, which avoids the part protruding from the conducting box, and further enables the soft connecting portion (wire, etc.) to be normally installed, simplifies the assembly process, and improves the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic view of the conducting box position of the isolation switch embodiment in the utility model (opening state);

[0021] Figure 2 It is the structure schematic view of the conducting box position of the isolation switch embodiment in the utility model (closing state);

[0022] Figure 3 It is the front view of the static indicating portion of the closing indication device used in the isolation switch embodiment in the utility model;

[0023] Figure 4The side view of the static indicating component of the closing indicating device used in the isolating switch embodiment of the present utility model;

[0024] Figure 5 The structural schematic view of the dynamic indicating component of the closing indicating device used in the isolating switch embodiment of the present utility model.

[0025] Mark explanation:

[0026] 1, conductive box; 2, transmission flange; 3, dynamic indicating component; 4, static indicating component; 5, connecting bolt; 301, mounting hole; 401, indicating column; 402, long hole; 403, connecting part; 404, inner bending avoiding part. Specific implementation

[0027] In order to solve the problems in the prior art, the basic technical concept of the present utility model is to change the shape of the static indicating component, change the structure of the static indicating component from the basically flat shape to the inner bending avoiding part extending inward to avoid the soft connecting component of the isolating switch, and the indicating structure for contacting the dynamic indicating component in the closing state is arranged in the inner bending avoiding part, so that the static indicating component does not affect the normal installation of the soft connecting component of the isolating switch on the basis of not affecting the normal indicating function of the closing indicating device. The present utility model will be further described in detail in combination with the embodiments.

[0028] The specific embodiment of the isolating switch provided by the present utility model:

[0029] As a most basic embodiment, the isolating switch provided by the present embodiment is basically consistent with the isolating switch (for example, double-arm vertical telescopic isolating switch) in the prior art with a closed conductive box 1 and driven by an insulator to rotate the transmission mechanism to realize opening and closing, as shown in Figure 1 and Figure 2 , which includes a transmission flange 2 and connects an insulator (not shown in the figure) through the transmission flange 2. In order to accurately observe and judge whether the isolating switch is closed in place, the isolating switch is also provided with a closing indicating device. The closing indicating device includes a static indicating component 4 and a dynamic indicating component 3, the static indicating component 4 is installed on one side of the conductive box 1, and the dynamic indicating component 3 is installed on the transmission flange 2 of the isolating switch and can rotate with the transmission flange 2, as shown in Figure 1 , the static indicating component 4 is in a state of not contacting the dynamic indicating component 3. When closed in place, as shown in Figure 2 , the static indicating component 4 is in a state of contacting the dynamic indicating component 3, so that the closing information of the isolating switch can be accurately obtained by observing whether the static indicating component 4 and the dynamic indicating component 3 contact.

[0030] As shown in Figure 3 and Figure 4As shown, the static indicating component 4 includes a connecting portion 403 and an inner-bending avoiding portion 404, which is connected with the conductive box 1 through the connecting portion 403, in other words, the connecting portion 403 is used for connecting with the conductive box 1. The inner-bending avoiding portion 404 and the connecting portion 403 are set at a certain included angle, and the inner-bending avoiding portion 404 extends to the side close to the transmission flange 2 relative to the connecting portion 403. An example of an included angle of 90 degrees is given in the figure, but according to the actual situation, the included angle can be other values slightly greater or less than 90 degrees, as long as the inner-bending avoiding portion 404 can extend inward. The indicating structure used for contacting the dynamic indicating component 3 when the closing is in place is arranged on the inner-bending avoiding portion 404.

[0031] Through analysis, it can be known that the static indicating component 4 in the embodiment avoids the situation that the static indicating component 4 has a part protruding outward from the conductive box 1 by arranging the inner-bending avoiding portion 404, and correspondingly, the dynamic indicating component 3 also does not need to be arranged with a long length, so that the dynamic indicating component 3 and the static indicating component 4 can both avoid the soft connecting component, so that the soft connecting component can be normally installed, which is convenient and efficient.

[0032] As a preferred embodiment which is more convenient to process, as shown in Figure 4 As shown, the connecting portion 403 and the inner-bending avoiding portion 404 are a bending structure integrally bent and formed, which is preferably plate bending, but other embodiments are not completely excluded from bar bending. The indicating structure is an indicating column 401 connected to the inner-bending avoiding portion 404, which can be a cylindrical structure, hollow or solid. The connection between the indicating column 401 and the inner-bending avoiding portion 404 can be welding, bolting, riveting and other forms.

[0033] Compared with the static indicating component 4 integrally processed and formed (for example, multiple bending or machining center machining) or spliced by multiple plates (or bars) in other embodiments, this has a lower cost and can ensure that the static indicating component 4 has a higher precision.

[0034] As another preferred embodiment, as shown in Figures 1-3As shown, the static indicating part 4 can be connected with the conductive box 1 by a fastener, which can be a connecting bolt 5 as shown in the figure, but other embodiments also do not exclude the possibility of using a pin shaft. The connecting part 403 is provided with a through hole for the fastener to pass through, and the conductive box is provided with a connecting hole connected with the fastener, and the fastener passes through the through hole and is connected with the connecting hole. Considering that there is inevitably a certain error when the two parts are installed, in order to solve this problem, the through hole of the connecting part 403 is an adaptive hole, which has at least two through points for the fastener to pass through, that is, when the fastener passes through from one point and cannot be normally connected with the connecting hole, it can be switched to other through points to adapt to the error of the adaptive connecting hole. Specifically, the adaptive hole can be a long hole 402 as shown in the figure. Alternatively, in other embodiments, the adaptive hole can also be an elliptical hole, a large circular hole, etc., as long as the fastener can move in the adaptive hole to adaptively adjust the position.

[0035] It should be noted here that other embodiments do not completely exclude the way of connecting the static indicating part 4 and the conductive box 1 by welding.

[0036] In addition, in order to facilitate the installation of the dynamic indicating part 3, in the embodiment, as shown in the figure, Figure 5 The dynamic indicating part 3 is provided with a mounting hole 301, and the closing indicating device comprises a connecting piece, and the dynamic indicating part 3 is connected with the transmission flange 2 through the connecting piece. Correspondingly, the transmission flange 2 is provided with a through hole (not shown in the figure), and the connecting piece passes through the through hole and is connected with the mounting hole 301. Compared with the way of using a hoop, this way of using a connecting piece is more convenient.

[0037] The mounting hole 301 should be provided with at least one, for example, the mounting hole 301 can be a threaded hole, and correspondingly, the connecting piece can be a connecting bolt 5.

[0038] In some other preferred embodiments, as shown in the figure, Figure 5 The mounting hole 301 can be a through hole, and the mounting hole 301 is provided with two, and the connecting piece used is a split pin, and actually at this time the dynamic indicating part 3 can directly use a pin shaft. When the mounting hole 301 and the through hole on the transmission flange 2 are aligned, the split pin is inserted to quickly realize the rotation-stopping connection of the dynamic indicating part 3 and the transmission flange 2. It should be noted here that in order to improve the connection reliability of the dynamic indicating part 3 and the transmission flange 2, in other embodiments, the mounting hole 301 can be provided with three or even more.

[0039] The specific embodiment of the disconnector closing indicating device in the utility model:

[0040] The embodiment of the disconnector closing indicating device is the closing indicating device recorded in the above-mentioned disconnector embodiment, which will not be described in detail here.

[0041] Finally, it needs to be explained that the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments without paying creative labor, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A closing indicator device for an isolating switch, characterized in that: It includes a static indicating component and a dynamic indicating component. The static indicating component is used to be installed on one side of the conductive box of the disconnector, and the dynamic indicating component is used to be installed on the transmission flange of the disconnector and rotate with the transmission flange. The static indicating component includes a connecting portion for connecting to the conductive box and an inward bending avoidance portion at a set angle to the connecting portion. The inward bending avoidance portion is configured to extend toward a side close to the transmission flange relative to the connecting portion when in use. The inward bending avoidance portion is provided with an indicating structure for contacting the dynamic indicating component when the switch is in place.

2. The closing indicator device for the disconnector according to claim 1, characterized in that: The connecting portion and the inner-bend avoidance portion are an integrally bent structure, and the indicating structure is an indicating column connected to the inner-bend avoidance portion.

3. The closing indicator device for the disconnector according to claim 1 or 2, characterized in that: The connecting portion is provided with a through hole for a fastener to pass through to connect the static indicating component to the conductive box. The through hole is an adaptive hole having at least two penetration points for the fastener to pass through, so as to adaptively match the error of the corresponding connection hole on the conductive box for connecting with the fastener.

4. The closing indicator device for the disconnector according to claim 1 or 2, characterized in that: At least one mounting hole is provided on the dynamic indicating component. The closing indicating device for the disconnector further comprises a connecting piece for connecting the dynamic indicating component and the transmission flange. The connecting piece is used to pass through a through hole provided on the transmission flange for the connecting piece to pass through and be connected to the mounting hole.

5. The closing indicator device for the disconnector according to claim 4, characterized in that: The mounting holes are through holes and are provided with two or more, and the connecting piece is a cotter pin.

6. An isolating switch, characterized in that: It includes a conductive box, a transmission flange and a closing indication device. The closing indication device includes a static indication component installed on one side of the conductive box and a dynamic indication component installed on the transmission flange and capable of rotating with the transmission flange. The static indication component includes a connecting portion for connecting to the conductive box and an inward-bending avoidance portion at a set angle to the connecting portion. The inward-bending avoidance portion extends toward a side close to the transmission flange relative to the connecting portion. The inward-bending avoidance portion is provided with an indication structure for contacting the dynamic indication component when the switch is in place.

7. The isolating switch according to claim 6, characterized in that: The connecting portion and the inner-bend avoidance portion are an integrally bent structure, and the indicating structure is an indicating column connected to the inner-bend avoidance portion.

8. The disconnector according to claim 6 or 7, characterized in that: The connecting part is connected to the conductive box through a fastener. The connecting part is provided with a through hole for the fastener to pass through. The conductive box is provided with a connecting hole connected to the fastener. The through hole is an adaptive hole with at least two penetration points for the fastener to pass through, so as to adaptively match the error of the connecting hole.

9. The disconnector according to claim 6 or 7, characterized in that: The dynamic indicating component is connected to the transmission flange through a connecting piece. The dynamic indicating component is provided with at least one mounting hole. The transmission flange is provided with a through hole. The connecting piece passes through the through hole and is connected to the mounting hole.

10. The isolating switch according to claim 9, characterized in that: The mounting holes are through holes and are provided with two or more, and the connecting piece is a cotter pin.

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