Snap spring detection device for high-voltage circuit breaker

Abstract

The utility model relates to the technical field of electric power facilities, in particular to a snap spring detection device for a high-voltage circuit breaker, which comprises a tool, a metal sensor and a detection part, the tool is provided with a first end and a second end, the first end is provided with a first limiting groove, the metal sensor is arranged on the tool and is close to the first limiting groove, and the detection part is arranged on the tool. The detection part is movably arranged on the tool, a detection groove and a second limiting groove are formed in the detection part, the detection groove is movably connected with the first limiting groove, and the second limiting groove is located in the side, away from the first limiting groove, of the detection groove; by arranging the metal sensor, the detection part, the first limiting groove and the second limiting groove on the tool, the snap spring can be clamped into the detection groove and sensed by the metal sensor in the assembly process, and if the metal sensor does not sense the snap spring, the situation that the snap spring is neglected to be installed or the snap spring is not installed in place exists; therefore, negative effects on the quality and the stability of the high-voltage circuit breaker due to neglected installation or improper installation of the snap spring are avoided, and meanwhile, the overall assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power facilities, in particular to a clamp spring detection device for a high-voltage circuit breaker. Background Art

[0002] High-voltage circuit breakers, also known as high-voltage switches, are the primary control equipment in 1000kV high-voltage circuits, such as those found in power plants and substations. High-voltage circuit breakers have arc-extinguishing properties. When the power system is operating normally, they can disconnect and connect the no-load and load currents of high-voltage lines and various electrical equipment. In the event of a power system fault, the high-voltage circuit breaker can work in conjunction with the protection relay to quickly disconnect the fault current loop.

[0003] During the assembly process of high-voltage circuit breakers, it is necessary to install retaining rings on the mechanism pins in the high-voltage circuit breaker to prevent axial movement of components and reduce damage and malfunctions caused by axial displacement of components. However, in the actual assembly process, due to the complicated assembly process and the small size of the retaining rings, retaining rings are often missed or improperly installed, which can easily have a negative impact on the quality and stability of the high-voltage circuit breaker.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase understanding of the overall background of the present invention, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0005] In order to solve the above-mentioned technical problems of missing or improper installation of retaining springs, the utility model provides a retaining spring detection device for high-voltage circuit breakers, which includes a tooling, a metal sensor and a detection part. The tooling has a first end and a second end, and a first limiting groove is opened on the first end. The metal sensor is arranged on the tooling and close to the first limiting groove. The detection part is movably arranged on the tooling. A detection groove and a second limiting groove are provided on the detection part. The detection groove is movably connected to the first limiting groove, and the second limiting groove is located on the side of the detection groove away from the first limiting groove.

[0006] Wherein, the diameter of the detection slot is Greater than the diameter of the second limiting groove .

[0007] Furthermore, the diameter of the detection slot Larger than the diameter of the first limiting groove .

[0008] Furthermore, the diameter of the second limiting groove is Not less than the diameter of the first limiting groove .

[0009] Furthermore, the first end and the second end are not on the same straight line.

[0010] Furthermore, the retaining spring detection device for a high-voltage circuit breaker further includes a fixing portion, the fixing portion is detachably connected to the tooling, and the fixing portion is movably connected to the metal sensor.

[0011] Furthermore, the tooling and the fixing portion are both made of non-metallic materials.

[0012] Furthermore, the high-voltage circuit breaker retaining spring detection device further includes a positioning portion, and the positioning portion is fixed on the tooling.

[0013] Furthermore, the high-voltage circuit breaker retaining spring detection device further includes a holding portion, which is fixed on the tooling and close to the second end.

[0014] Furthermore, the metal sensor is a shielded sensor.

[0015] Furthermore, a wire trough is provided on the tooling.

[0016] Based on the above, the retaining spring detection device for a high-voltage circuit breaker provided by the utility model, compared with the prior art, is configured by arranging a metal sensor, a detection portion, a first limit groove and a second limit groove on a tooling. During the assembly process, the tooling is extended into the transformer and engaged with the mechanism pin shaft. When the mechanism pin shaft is engaged with the first limit groove, the retaining spring can be engaged with the detection groove and sensed by the metal sensor. If the metal sensor does not sense it, it indicates that the retaining spring is missing or not installed in place. This avoids the negative impact on the quality and stability of the high-voltage circuit breaker due to the missing or improper installation of the retaining spring, and can also improve the overall assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. The positional relationships described in the drawings in the following description are based on the directions of the components in the drawings unless otherwise specified.

[0018] Figure 1 A schematic structural diagram of a clamp spring detection device for a high-voltage circuit breaker provided in one embodiment of the present utility model;

[0019] Figure 2 、 Figure 3 A schematic diagram of the explosion structure of a clip spring detection device for a high-voltage circuit breaker provided in one embodiment of the utility model;

[0020] Figure 4 A schematic structural diagram of a detection unit provided in one embodiment of the present utility model;

[0021] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0022] Figure 6 A diagram showing a usage state of a clamp spring detection device for a high-voltage circuit breaker provided in one embodiment of the present utility model;

[0023] Figure 7 for Figure 6 Schematic diagram of the locally enlarged structure at N in the figure.

[0024] Reference numerals:

[0025] DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof all mean "at least including".

[0028] See also Figures 1 to 3 , Figure 1 A schematic structural diagram of a clamp spring detection device for a high-voltage circuit breaker provided in one embodiment of the present utility model; Figure 2 、 Figure 3 This is a schematic diagram of the explosion structure of a retaining spring detection device for a high-voltage circuit breaker provided in one embodiment of the utility model.

[0029] To solve the above-mentioned technical problems of missing or improper installation of the retaining spring, or to achieve at least one of the above-mentioned advantages or other advantages, an embodiment of the present invention provides a retaining spring detection device 100 for a high-voltage circuit breaker.

[0030] As shown in the figure, the high-voltage circuit breaker retaining spring detection device 100 includes a tool 10, a metal sensor 20, and a detection unit 30. In a specific embodiment, the tool 10 has a first end 11 and a second end 12. During the actual assembly process, the retaining spring 200 is usually clamped to one end of the mechanism pin 300 in the high-voltage circuit breaker. Therefore, it is necessary to provide a first limiting groove 40 on the first end 11 for clamping the mechanism pin 300. At the same time, the first limiting groove 40 can also play an auxiliary positioning role: when the mechanism pin 300 is clamped in the first limiting groove 40, the metal sensor 20 can accurately sense the retaining spring 200.

[0031] Preferably, the first end 11 and the second end 12 are not co-linear. That is, the tool 10 as a whole has a curved line shape, which facilitates workers using the high-voltage circuit breaker clip spring detection device 100 to inspect the clip 200 during assembly. It is understood that the bending angle of the tool 10 can be adjusted based on the actual product being assembled, and this is not a limitation in this application.

[0032] Furthermore, the tooling 10 is made of non-metallic material to avoid interference with the metal sensor 20 .

[0033] The metal sensor 20 is mounted on the tooling 10, near the first limiting slot 40. In practice, a wiring slot 50 is provided on the tooling 10. When the metal sensor 20 is mounted on the tooling 10, the power supply and signal lines are routed out of the tooling 10 through the wiring slot 50. Preferably, the metal sensor 20 is a shielded type sensor.

[0034] When the mechanism pin 300 is engaged with the first limiting groove 40, the metal sensor 20 can accurately sense the retaining spring 200. If the retaining spring 200 is not detected, it means that the retaining spring 200 is missing or not properly installed, which reminds the worker to check in time, thereby avoiding the negative impact on the quality and stability of the high-voltage circuit breaker caused by the missing or improper installation of the retaining spring 200, and also improving the overall assembly efficiency.

[0035] Based on the above, a detection portion 30 is provided on the first end 11 of the tool 10. In practice, during actual assembly, with continued use of the high-voltage circuit breaker retainer detection device 100, the detection portion 30 may wear. Therefore, the detection portion 30 is detachably connected to the tool 10 to facilitate replacement of the detection portion 30 if wear occurs, thereby avoiding detection errors caused by wear.

[0036] The detection portion 30 is provided with a detection slot 31 and a second limiting slot 32. When the detection portion 30 is mounted on the tooling 10, the detection slot 31 abuts against the first limiting slot 40. The second limiting slot 32 is located on the side of the detection slot 31 away from the first limiting slot 40. Preferably, the detection portion 30 is made of metal to reduce wear and tear on the detection portion 30 and improve its durability.

[0037] Specifically, when the mechanism pin 300 is engaged in the first limiting groove 40, the retaining spring 200 is just engaged in the detection groove 60. The second limiting groove 32 can limit the retaining spring 200, so that the retaining spring 200 can be accurately engaged in the detection groove 60. At this time, the metal sensor 20 can accurately sense the retaining spring 200. If the retaining spring 200 is not detected, it means that the retaining spring 200 is missing or not installed properly, reminding workers to check in time, thereby avoiding the negative impact on the quality and stability of the high-voltage circuit breaker due to the missing or improper installation of the retaining spring, and also improving the overall assembly efficiency.

[0038] Preferably, if Figure 4 、 Figure 5 As shown, the diameter of the detection groove 31 Greater than the diameter of the second limiting groove 32 The diameter of the detection slot 31 Larger than the diameter of the first limiting groove 40 The diameter of the second limiting groove 32 Not less than the diameter of the first limiting groove 40 In this way, during the monitoring process, the first limiting groove 40 and the second limiting groove 32 can limit the clamping spring 200 .

[0039] In some preferred embodiments, the high-voltage circuit breaker retainer detection device further includes a fixing portion 60. The fixing portion 60 is movably connected to the metal sensor 20. The fixing portion 60 is detachably connected to the tooling 10, facilitating installation and replacement of the metal sensor 20. Furthermore, the fixing portion 60 is made of a non-metallic material to avoid interference with the metal sensor 20.

[0040] In some preferred embodiments, the high voltage circuit breaker spring detection device further includes a positioning portion 70. The positioning portion 70 is fixed on the tool 10. The positioning portion 70 can play an anti-cheating effect. In specific implementation, Figure 6 、 Figure 7 As shown, the positioning portion 70 is a proximity sensor. Only when the worker accurately places the positioning portion 70 on the mechanism top plate 400 in the high-voltage circuit breaker, the metal sensor 20 can sense the clip 200, avoiding cheating by placing the clip 200 in the detection slot 31.

[0041] In some preferred embodiments, the high-voltage circuit breaker retainer detection device further includes a gripping portion 80. The gripping portion 80 is fixed to the tool 10 and is close to the second end 12, so as to be easily gripped by a worker.

[0042] To sum up, the retaining spring detection device for high-voltage circuit breakers provided by the utility model is compared with the prior art. By arranging a metal sensor, a detection groove, a first limit groove and a second limit groove on the tooling, during the assembly process, the tooling is extended into the transformer and engaged with the mechanism pin shaft. When the mechanism pin shaft and the first limit groove are engaged in place, the retaining spring can be engaged into the detection groove and sensed by the metal sensor. If the metal sensor does not sense it, it indicates that the retaining spring is missing or not installed in place. This avoids the negative impact on the quality and stability of the high-voltage circuit breaker due to the missing or improper installation of the retaining spring, and can also improve the overall assembly efficiency.

[0043] Although this document frequently uses terms such as "tooling" and "testing unit," the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of this utility model; interpreting them as any additional limitations is contrary to the spirit of this utility model.

[0044] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the present invention may be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background art at the same time. Those skilled in the art should understand that the absence of any content in a claim should not be construed as a limitation on that claim.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A snap spring detection device for a high-voltage circuit breaker, characterized in that: include A tooling, the tooling having a first end and a second end, the first end being provided with a first limiting groove; a metal sensor, the metal sensor being disposed on the tooling and close to the first limiting groove; a detection portion, the detection portion being movably disposed on the tooling, the detection portion being provided with a detection slot and a second limiting slot, the detection slot being movably connected to the first limiting slot, the second limiting slot being located on a side of the detection slot away from the first limiting slot; Wherein, the diameter of the detection slot is Greater than the diameter of the second limiting groove .

2. The high-voltage circuit breaker retaining spring detection device according to claim 1, characterized in that: The diameter of the detection slot Larger than the diameter of the first limiting groove .

3. The high-voltage circuit breaker retaining spring detection device according to claim 1, wherein: The diameter of the second limiting groove Not less than the diameter of the first limiting groove .

4. The high-voltage circuit breaker retaining spring detection device according to claim 1, wherein: The first end and the second end are not on the same straight line.

5. The high-voltage circuit breaker retaining spring detection device according to claim 1, wherein: The clamp spring detection device for a high-voltage circuit breaker further includes a fixing portion, which is detachably connected to the tooling and movably connected to the metal sensor.

6. The high-voltage circuit breaker retaining spring detection device according to claim 5, characterized in that: The tooling and the fixing portion are both made of non-metallic materials.

7. The high-voltage circuit breaker retaining spring detection device according to claim 1, characterized in that: The high-voltage circuit breaker retaining spring detection device further includes a positioning portion, which is fixed on the tooling.

8. The high-voltage circuit breaker retaining spring detection device according to claim 1, wherein: The clamp spring detection device for a high-voltage circuit breaker further includes a holding portion, which is fixed on the tool and close to the second end.

9. The high-voltage circuit breaker retaining spring detection device according to claim 1, characterized in that: The metal sensor is a shielded sensor.

10. The high-voltage circuit breaker retaining spring detection device according to claim 1, wherein: A wire groove is provided on the tooling.

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