CN220381251U - Knife switch state detection device - Google Patents

Abstract

The utility model provides a knife switch state detection device, which comprises: the detected piece is used for being connected with the movable part of the disconnecting link; the detection assembly is used for being connected with the disconnecting link seat body and can detect the position of a detected piece; the collector assembly is provided with a control board, the collector assembly is independently arranged relative to the detection assembly, and the control board is electrically connected with the detection assembly through a wire. The utility model solves the problem of higher transformation difficulty degree of the isolating switch designed and transformed in the prior art.

Description

Knife switch state detection device

Technical Field

The utility model relates to the technical field of transformer substation devices, in particular to a disconnecting link state detection device.

Background

In the process of power generation and use, the switching-on and switching-off control of the grounding disconnecting link of the primary equipment is generally carried out by adopting an electric operating mechanism. In operation, the motor is started after the electric operating mechanism receives a remote electric signal, and the transmission rod is driven to rotate after the electric operating mechanism passes through the transmission system, so that the disconnecting link is operated to finish the action of breaking or closing. The electric operating mechanism immediately feeds back the electric signal of the position of the operating mechanism, namely the primary feedback signal of the disconnecting link opening and closing. However, during the opening and closing process, the motor may be correctly operated due to the knife switch itself, and the auxiliary contact is already in place, but the knife switch is not completely in place, so that misoperation accidents are easily caused. Therefore, the secondary confirmation of the switch increasing criterion is carried out, and the actual reflection of the current running state of the equipment becomes important.

At present, a double-confirmation detection mechanism for the position of a disconnecting link is adopted in the existing scheme in the power industry, so that the purpose of secondarily confirming the criterion for increasing the disconnecting link of the isolating switch is realized. The novel disconnecting switch is generally designed with a disconnecting link position double-confirmation detection mechanism, but for old disconnecting switches, how to reform the novel disconnecting switch to realize the purpose of secondarily confirming the disconnecting link addition criterion becomes an important problem.

The 'double-confirmation detection mechanism for the knife switch position' of the knife switch generally requires that the detection equipment is additionally arranged at the last stage of equipment input and is also the last stage of a transmission mechanism, thereby ensuring the reliability of feedback signals. Considering the comprehensive performances such as modification feasibility, convenience, attractive appearance and the like, the 'double-confirmation detection mechanism for the position of the disconnecting link' is generally additionally arranged at the output shaft of the disconnecting link, and the modification of installed operation or production equipment can be realized.

Because upgrade transformation is carried out to current equipment, and because isolator equipment producer is many, isolator does not have unified standard, and structural difference is big, and the commonality is poor to in the in-process of design transformation isolator, detection mechanism's customization degree needs higher, reforms transform the degree of difficulty higher. And under the condition of no drawing, the isolating switch structure needs to be studied and measured in detail, the production, processing and delivery periods of the product are longer, and the transformation efficiency is affected.

Disclosure of Invention

The utility model mainly aims to provide a disconnecting link state detection device which is used for solving the problem that the improvement difficulty degree of the disconnecting switch is high in the prior art.

In order to achieve the above object, the present utility model provides a knife switch state detection device, including: the detected piece is used for being connected with the movable part of the disconnecting link; the detection assembly is used for being connected with the disconnecting link seat body and can detect the position of a detected piece; the collector assembly is provided with a control board, the collector assembly is independently arranged relative to the detection assembly, and the control board is electrically connected with the detection assembly through a wire.

Further, the detection assembly is a plurality of, and different detection assemblies are installed in different positions of the knife switch seat body, and when one of all detection assemblies detects a detected piece, the detection assembly sends a signal to the control board, and the control board indicates the knife switch state.

Further, the knife switch state detection device further comprises a protective sleeve, the protective sleeve is connected with the detection assembly and the collector assembly, and the lead is arranged in the protective sleeve in a penetrating mode.

Further, the protective sleeve is a flexible sleeve.

Further, the detection assembly includes: a first housing having a first mounting structure for mounting on a knife gate housing, the first housing being a unitary piece or an assembly comprising a plurality of sub-components; and the detection element is arranged in the first shell and can detect the position of the detected piece.

Further, the first housing has an identification for indicating the detection range.

Further, the collector assembly includes: a second housing having a second mounting structure for mounting, the control board being mounted within the second housing, the second housing being a unitary piece or an assembly comprising a plurality of sub-components; the adapter is arranged on the second shell, extends out of the second shell and is electrically connected with the control board; the plug is connected with the second shell, and the plug and the adapter are both detachably connected with the second shell and can exchange positions.

Further, the knife switch state detection device further includes: the first installation component is used for installing the detected piece on the movable part of the disconnecting link; the second installation component, detection component installs on the switch pedestal through the second installation component, and the collector subassembly is located on the second installation component or is located on the switch pedestal.

Further, the first mounting assembly and/or the second mounting assembly comprises at least one mounting bracket, when the mounting brackets are multiple, the mounting brackets are sequentially connected, at least two mounting brackets are connected in an adjustable mode, one of the two mounting brackets at the end is connected with the detected piece or the detecting assembly, and the other of the two mounting brackets at the end is connected with the movable part or the knife switch seat body.

Further, the knife switch state detection device further comprises an auxiliary mounting piece, and the first mounting component and/or the second mounting component are/is mounted on the knife switch movable part or the knife switch base body through the auxiliary mounting piece.

By applying the technical scheme of the utility model, the detection assembly is separated from the collector assembly, the detection assembly is used for detecting the position and the like of the detected piece, the collector assembly comprises the control board, and the control board can be used for receiving and processing signals and data and communicating with a remote terminal and the like, so that the detection assembly does not comprise the control board and other parts, the volume of the detection assembly can be designed to be smaller, the smaller detection assembly does not need a large installation space, and the detection assembly can adapt to different installation environments, and can be installed no matter the shape and the space of the isolating switch. Meanwhile, the collector assembly does not need to consider the installation position too much, only the installation can be carried out by finding the installation position, and the control board is connected with the detection assembly through a lead, so that signal transmission between the collector assembly and the detection assembly can be realized even if the collector assembly is installed at different or even far positions, and the normal operation of the knife switch state detection device is ensured. The setting mode is on the basis that guarantee that knife switch state detection device can realize the secondary of knife switch state confirms for knife switch state detection device can adapt to different isolator, also need not carry out a large amount of detailed investigation and measurement to isolator during the installation, thereby can reduce the degree of difficulty of transformation, simultaneously, device structure itself is simple, can effectively reduce the complexity of scheme design, reduces production, processing, delivery cycle, can prepare goods in advance during the production and processing, installs fast during the installation, and convenient transformation improves transformation efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural diagram of a knife switch state detection device of the present utility model;

FIG. 2 shows a schematic structural diagram of the detection assembly of FIG. 1;

FIG. 3 is a schematic diagram showing the construction of the knife switch state detection device of FIG. 1 applied to an AIS isolation switch;

fig. 4 shows a schematic structural diagram of the knife switch state detection device in fig. 1 applied to a GIS isolation switch.

Wherein the above figures include the following reference numerals:

10. a member to be detected; 20. a detection assembly; 21. identification; 30. a collector assembly; 31. a second housing; 32. an adapter; 33. a plug; 40. a protective sleeve; 51. a first mounting bracket; 52. a fourth mounting bracket; 61. a second mounting bracket; 62. a third mounting bracket; 63. a fifth mounting bracket; 71. a first clip; 72. and a second clip.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

In order to solve the problem that the improvement difficulty of the disconnecting switch is high in the prior art, the utility model provides a disconnecting link state detection device.

The knife switch state detection device as shown in fig. 1 to 4 comprises a detected piece 10 for being connected with a knife switch movable part, a detection component 20 for being connected with a knife switch base body and a collector component 30, wherein the detection component 20 can detect the position of the detected piece 10; the collector assembly 30 has a control board, the collector assembly 30 being independently disposed with respect to the sensing assembly 20, the control board being electrically connected to the sensing assembly 20 by wires.

In this embodiment, the detection assembly 20 is separated from the collector assembly 30, the detection assembly 20 is used for detecting the position of the detected member 10, and the collector assembly 30 includes a control board, which can be used for receiving signals and data, processing signals and communicating with a remote terminal, so that the detection assembly 20 does not include components such as the control board, and the volume of the detection assembly 20 can be designed smaller, so that the smaller detection assembly 20 does not need a large installation space, and can adapt to different installation environments, and the detection assembly 20 can be installed regardless of the shape and space of the isolating switch. Meanwhile, the collector assembly 30 does not need to consider the installation position too much, only the installation can be performed by finding the installation position, and the control board is connected with the detection assembly 20 through a wire, so that signal transmission between the collector assembly 30 and the detection assembly 20 can be realized even if the collector assembly 30 is installed at different or even far positions, and the normal operation of the knife switch state detection device is ensured. The setting mode is on the basis that guarantee that knife switch state detection device can realize the secondary of knife switch state confirms for knife switch state detection device can adapt to different isolator, also need not carry out a large amount of detailed investigation and measurement to isolator during the installation, thereby can reduce the degree of difficulty of transformation, simultaneously, device structure itself is simple, can effectively reduce the complexity of scheme design, reduces production, processing, delivery cycle, can prepare goods in advance during the production and processing, installs fast during the installation, and convenient transformation improves transformation efficiency.

The term "independent" as used herein means that the detecting unit 20 and the collector unit 30 are two components, and are not integrally formed.

Optionally, the detecting assembly 20 is plural, and different detecting assemblies 20 are installed at different positions of the knife switch base, and when one of all detecting assemblies 20 detects the detected member 10, the detecting assembly 20 sends a signal to the control board, and the control board indicates the knife switch state. In this embodiment, the detected member 10 is a magnetic element, and one detecting member 20 is a hall element assembly, and two detecting members 20 are provided for illustration, however, the specific number, type, etc. of the detected member 10 and the detecting members 20 can be adjusted accordingly as required.

Specifically, since the detected member 10 moves along the movable portion of the knife switch, and the detecting assemblies 20 need to obtain the state of the knife switch according to the position of the detected member 10, the setting position of the detecting assemblies 20 is related to the movement of the movable portion of the knife switch and the detected member 10, for example, when the knife switch rotates 90 ° to realize opening and closing, the detected member 10 also rotates 90 °, at this time, the two detecting assemblies 20 may be disposed at 90 ° intervals along the circumferential direction of the detected member 10, so that the two detecting assemblies 20 can be matched with the detected member 10.

Preferably, the setting positions of the two detecting assemblies 20 are adopted in this embodiment, so that the detecting ranges of the two detecting assemblies 20 are relatively independent, i.e. are not overlapped, and therefore the detected member 10 can only be detected by one of the detecting assemblies 20 at the same time, in this way, only when the detecting trigger states of the two detecting assemblies 20 are different, the action of the knife switch is described, and if the detected member 10 is detected by both detecting assemblies 20 or the detected member 10 is not detected by both detecting assemblies 20, i.e. both detecting assemblies 20 are triggered or neither are triggered, the abnormal state of the knife switch is described, and the collector assembly 30 feeds back the abnormal state to the remote terminal in time. Specifically, the two detecting assemblies 20 are respectively referred to as a first detecting assembly and a second detecting assembly, and the above process is that when the detected member 10 is detected by the first detecting assembly and the second detecting assembly cannot detect the detected member 10, one state of the knife switch in the closing and opening states can be described, and when the detected member 10 is detected by the second detecting assembly and the first detecting assembly cannot detect the detected member 10, the other state of the knife switch in the closing and opening states can be described. When the first detection component and the second detection component both detect the detected piece 10 or neither detect the detected piece 10, the abnormal state of the knife switch is described. In the above process, the detection component 20 sends the detected signal to the control board, and the control board collects the corresponding detection information, and determines the state of the knife switch according to the information and feeds back to the terminal to give an instruction to the operator.

As shown in fig. 1, in this embodiment, the knife switch state detecting device further includes a protective sleeve 40, two ends of the protective sleeve 40 are respectively connected with the detecting component 20 and the collector component 30, and the wires are threaded in the protective sleeve 40. The protective sleeve 40 can protect the wires, ensure the safety during installation and use, avoid accidental damage and the like, and prolong the service life.

In view of the wide variety of possibilities for the uncertainty of the relative positions between the collector assembly 30 and the sensing assembly 20 at the time of installation, the protective sheath 40 of the present embodiment is preferably a flexible sheath for further improving the adaptability to the installation environment. The flexible sleeve itself may deform to bend and twist to accommodate the relative mounting positions of the collector assembly 30 and the sensing assembly 20. Further preferably, the protective sheath 40 is a metal over-molded hose.

In this embodiment, the detecting assembly 20 includes a first housing and a detecting element, where the first housing has a receiving cavity, and the detecting element is installed and received in the receiving cavity, and the detecting element is matched with the detected element 10 to play a role in detecting the position of the detected element 10, and because the detected element 10 in this embodiment adopts a magnetic element, the detecting element can adopt a reed switch or a hall element, and the detecting element can be specifically adjusted as required, so long as the detecting element can be mutually matched with the detected element 10 to realize detection. The first casing is the part that detection subassembly 20 installation is fixed, detects subassembly 20 and installs on the switch pedestal through first casing promptly, consequently, first casing has the first mounting structure that is used for installing on the switch pedestal, and first mounting structure can adopt mounting hole isotructure, wears to establish in the mounting hole through the bolt and can realize detecting subassembly 20 and install on the switch pedestal.

In order to facilitate the installation of the components such as the detection element in the accommodating cavity, the first housing of the embodiment adopts a structural form of an assembly comprising a plurality of sub-components, namely, the first housing comprises a base and a cover body, the base and the cover body are in butt joint to form the accommodating cavity, and the side surface of the base is also provided with a via hole structure for being in butt joint with the protective sleeve 40. The side of base has two arm that stretch out, has offered the mounting hole on the arm that stretches out, like this, holds and separates between chamber and the mounting hole, and the two each other do not influence. Of course, the first housing may be provided in other forms such as a single piece.

As shown in fig. 2, in the present embodiment, since the detection element is provided in the first housing, the present embodiment is provided with a mark 21 for indicating the detection range on the outer surface of the first housing. The marks 21 can be in the form of characters, patterns and the like, in this embodiment, a plurality of parallel strip-shaped marks are adopted, and the length of the strip-shaped marks close to the detection center is long, and sequentially decreases towards two sides. Thus, the detection range of the detection component 20 can be rapidly judged through the mark 21, the matching relationship between the detected piece 10 and the detection component 20 is ensured during installation, the initial positioning is realized, and the condition of detection error caused by installation problem is avoided.

As shown in fig. 1, in the present embodiment, the collector assembly 30 includes a second housing 31, an adapter 32 and a plug 33, where the second housing 31 acts similarly to the first housing, and also has a receiving cavity, and the control board is mounted and received in the second housing 31, and at the same time, the second housing 31 also has a second mounting structure similar to the first mounting structure, and the second mounting structure may also use mounting holes, so that the collector assembly 30 may be mounted in a suitable position on the knife switch. The second housing 31 may be provided as a single piece or as an assembly including a plurality of sub-components, as required, and the specific form may refer to the relevant content of the foregoing first housing, which is not described herein again.

The adapter 32 and the plug 33 are both arranged on the second shell 31 and connected with the second shell 31, and the adapter 32 and the plug 33 extend out of the second shell 31, and the adapter 32 is electrically connected with the control board, so that wired connection of external signals and the like can be realized. The plug 33 and the adapter 32 are located at different sides of the second housing 31 and are both detachably connected with the second housing 31, so that the positions of the plug 33 and the adapter 32 can be exchanged for enabling the outgoing lines to be convenient in different use occasions, and different wiring requirements can be adapted.

In this embodiment, the knife switch state detection device further includes: the first installation component and the second installation component, wherein, first installation component plays the effect of installation by detection spare 10, and the detection spare 10 is installed on the switch movable part through first installation component, and the second installation component plays the effect of installation detection subassembly 20, and detection subassembly 20 passes through the second installation component and installs on the switch pedestal, and collector subassembly 30 then can install on the second installation component or directly install in switch pedestal etc. department as required.

In this embodiment, the first mounting component and/or the second mounting component include mounting brackets, and the number of the mounting brackets may be set as required, and one or more mounting brackets may be set. When the mounting brackets are multiple, each mounting bracket is connected in sequence, at least two mounting brackets are connected in an adjustable mode, one of the two mounting brackets at the end is connected with the detected piece 10 or the detection assembly 20, and the other of the two mounting brackets at the end is connected with the movable part of the knife switch or the knife switch seat body. The mounting bracket can be adjusted in an adjustable matching mode, so that the positions of the detection assembly 20 and the detected piece 10 can be correspondingly adjusted during mounting, positioning is realized, and the mounting bracket can be adapted to isolating switches in different forms, so that adaptability is improved.

Besides the mounting bracket, the knife switch state detection device can further comprise an auxiliary mounting piece, the auxiliary mounting piece can adopt a clamp and other structures, and when the first mounting component and/or the second mounting component are inconvenient to directly mount on the knife switch, the first mounting component and/or the second mounting component can be mounted on the movable part of the knife switch or the knife switch seat body through the auxiliary mounting piece.

The disconnecting link state detection device of the embodiment can be applied to an AIS (Air Insulated Switchgear, open type switchgear) disconnecting switch, and also can be applied to a GIS (Gas Insulated Switchgear, gas insulated metal enclosed switchgear) disconnecting switch, and main body parts of the disconnecting link state detection device are the same, mainly characterized in that installation component parts are different, and specific applications of the two disconnecting switches are respectively described below.

As shown in fig. 3, when the first mounting assembly is applied to the AIS isolation switch, the first mounting assembly comprises a first mounting bracket 51, the first mounting bracket 51 is clamped and fastened to the bottom of a porcelain bottle rotating and rotating with a knife switch, and the detected piece 10 is mounted on the side surface of the bottom of the first mounting bracket 51. The position of the detected member 10 in both the radial and axial directions with respect to the cylindrical porcelain bottle can be changed by adjusting the position of the first mounting bracket 51. The second mounting assembly comprises a second mounting bracket 61 and a third mounting bracket 62, wherein the second mounting bracket 61 and the third mounting bracket 62 are provided with long strip-shaped holes, and bolts penetrate through the long strip-shaped holes, so that the relative positions between the second mounting bracket 61 and the third mounting bracket 62 can be adjusted, and the bolts can lock the relative positions between the second mounting bracket 61 and the third mounting bracket 62. The second mounting bracket 61 and the third mounting bracket 62 are respectively located at two sides of the knife switch row frame and clamped on the fixed row frame through bolts, the detection assembly 20 is mounted on the upper surface of the second mounting bracket 61, the second mounting bracket 61 is provided with an arc-shaped long groove, the detection assembly 20 is mounted on the arc-shaped long groove, and therefore adjustment of the detection assembly 20 in the radial direction and the circumferential direction can be achieved, the two detection assemblies 20 are respectively mounted at different positions in the circumferential direction, and accordingly detection of the detected piece 10 in different states of the knife switch can be achieved. The collector assembly 30 is disposed at the side of the row frame, and may be directly mounted on the row frame, or may be mounted on a mounting section of the second mounting bracket 61 bent at the side, so as not to occupy too much mounting area of the detection assembly 20. The whole scheme is simple in structure except for the knife switch state detection device, the main materials are metal plates and metal blocks, the production period is short, and the installation is convenient.

When the GIS isolating switch is applied to the GIS isolating switch, as shown in fig. 4, the first mounting assembly comprises the fourth mounting bracket 52, and the fourth mounting bracket 52 is inconvenient to directly mount on the swing arm rotating shaft, so that the first clamp 71 serving as an auxiliary mounting part is arranged, the first clamp 71 is sleeved outside the swing arm rotating shaft and clamped on the swing arm rotating shaft, the fourth mounting bracket 52 is connected with the first clamp 71, the detected part 10 is mounted on the bottom surface of the fourth mounting bracket 52, and the position can be axially adjusted as required. The second mounting assembly comprises a fifth mounting bracket 63, the fifth mounting bracket 63 is not convenient to be directly mounted on a fixed cylindrical tank body, a second clamp 72 serving as an auxiliary mounting piece is also arranged, the second clamp 72 is sleeved and clamped on the outer side of the cylindrical tank body, the fifth mounting bracket 63 is connected with the second clamp 72, the detecting assembly 20 is mounted on the fifth mounting bracket 63, the two detecting assemblies 20 are respectively mounted at circumferentially different positions in a manner of adopting an arc-shaped long groove to realize adjustable matching in circumferential direction and radial direction, and accordingly detection of the detected piece 10 in different states of the knife gate can be realized. The collector assembly 30 is mounted on the mounting section of the fifth mounting bracket 63 in a laterally folded arrangement. The whole scheme is simple in structure except for the knife switch state detection device, the main materials are metal plates and metal blocks, the production period is short, and the installation is convenient.

It should be noted that, the above-mentioned specific manner is that the knife switch state detection device of the present embodiment may be applied to different types of isolation switches, so that the adaptability is better. The specific installation mode and the like can be adjusted according to the actual structure of the isolating switch, and are not limited to the mode described in the embodiment.

It should be noted that the wire and the protective sheath 40 are not shown in fig. 3 and 4. The plurality of the above embodiments refers to at least two.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. the problem of the design in the prior art that the transformation difficulty degree of transforming the isolating switch is high is solved;

2. the disconnecting link state detection device can be adapted to different disconnecting switches, and a great amount of detailed investigation and measurement on the disconnecting switches are not needed during installation, so that the difficulty of transformation can be reduced;

3. the device has simple structure, can effectively reduce the complexity of scheme design, reduce production, processing and delivery cycle, can prepare goods in advance during production and processing, is fast to install during installation, and is convenient to reform transform, and improves the transformation efficiency.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A knife switch state detection device, characterized by comprising:

a detected piece (10) connected with the movable part of the knife switch;

the detection assembly (20) is used for being connected with the disconnecting link seat body, and the detection assembly (20) can detect the position of the detected piece (10);

-an integrator assembly (30), the integrator assembly (30) having a control board, the integrator assembly (30) being arranged independently of the detection assembly (20), the control board being electrically connected to the detection assembly (20) by means of wires.

2. The knife switch state detection device according to claim 1, wherein the number of detection assemblies (20) is plural, and different detection assemblies (20) are mounted at different positions of the knife switch base, and when one of all the detection assemblies (20) detects the detected member (10), the detection assembly (20) sends a signal to the control board, and the control board indicates the knife switch state.

3. The knife switch status detection device according to claim 1, further comprising a protective sheath (40), wherein the protective sheath (40) is connected to the detection assembly (20) and the collector assembly (30), and wherein the wire is threaded into the protective sheath (40).

4. A knife switch status detection device according to claim 3, characterized in that the protective sheath (40) is a flexible sheath.

5. The knife switch status detection device according to claim 1, wherein the detection assembly (20) comprises:

a first housing having a first mounting structure for mounting on the knife gate housing, the first housing being a unitary piece or an assembly comprising a plurality of sub-components;

and a detection element which is provided in the first housing and is capable of detecting the position of the object (10).

6. The knife switch state detection device according to claim 5, wherein the first housing has a flag (21) for indicating a detection range.

7. The knife switch status detection device according to claim 1, wherein the collector assembly (30) comprises:

-a second housing (31), the second housing (31) having a second mounting structure for mounting, the control board being mounted within the second housing (31), the second housing (31) being a unitary piece or an assembly comprising a plurality of sub-components;

the adapter (32) is arranged on the second shell (31) and extends out of the second shell (31), and the adapter (32) is electrically connected with the control board;

the plug (33), the plug (33) with second casing (31) is connected, plug (33) with adapter (32) both can dismantle with second casing (31) and can the exchange position.

8. The knife switch state detection device according to any one of claims 1 to 7, characterized in that the knife switch state detection device further comprises:

the first installation component is used for installing the detected piece (10) on the movable part of the disconnecting link;

the second installation assembly, detection component (20) pass through second installation assembly is installed on the switch pedestal, collector subassembly (30) are located on the second installation assembly or are located on the switch pedestal.

9. The knife switch state detection device according to claim 8, wherein the first mounting assembly and/or the second mounting assembly comprises at least one mounting bracket, when the plurality of mounting brackets are provided, each mounting bracket is sequentially connected, at least two mounting brackets are connected in an adjustable manner, one of the two mounting brackets at the end is connected with the detected piece (10) or the detection assembly (20), and the other of the two mounting brackets at the end is connected with the knife switch movable part or the knife switch base.

10. The knife switch status detection device of claim 8, further comprising an auxiliary mounting member, wherein the first mounting assembly and/or the second mounting assembly is mounted on the knife switch movable portion or the knife switch base via the auxiliary mounting member.