Isolation switch
By installing inspection windows and identification marks on the disconnect switches, the problem of the inability to identify the opening distance and overtravel of the disconnect switches is solved, enabling convenient maintenance and testing of the equipment and ensuring safe operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, the opening distance and overtravel of disconnect switches are directly determined by production personnel. Once the product is manufactured, it cannot be identified and judged, leading to inconvenience in subsequent maintenance and testing.
An inspection window is provided on the casing of the disconnecting switch, and identification marks are set on the inspection window to measure the opening distance and overtravel data between the moving contact and the stationary contact, including the opening distance mark and the overtravel mark, so as to facilitate the observation and judgment of the staff.
Through the inspection window and identification marks, staff can directly observe and judge the opening distance and overtravel data of the disconnecting switch, improving the convenience of equipment maintenance and testing, and ensuring safe operation.
Smart Images
Figure CN224053074U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of switch, especially relates to a disconnecting switch. BACKGROUND
[0002] The disconnecting switch is a kind of switch device mainly used for "isolating power supply, switching operation, to connect and cut off small current circuit". Its core function is to reliably isolate electrical equipment from live network, form obvious disconnecting point, to ensure the safety of staff, this isolation not only provides intuitive disconnecting mark, but also can establish reliable insulation gap after switching off, to prevent accidental electric shock or equipment damage.
[0003] At present, in low-voltage distribution system, the opening distance and overtravel of disconnecting switch are two important parameters, which directly affect the performance and reliability of switch. In prior art, the opening distance and overtravel of disconnecting switch are directly determined by production personnel, and once product is completed, it cannot be identified and judged, thus greatly inconvenient for subsequent maintenance and detection of disconnecting switch. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a disconnecting switch to solve the problem that in prior art, the opening distance and overtravel of disconnecting switch are directly determined by production personnel, and once product is completed, it cannot be identified and judged, thus greatly inconvenient for subsequent maintenance and detection of disconnecting switch.
[0005] To achieve this purpose, the utility model adopts the following technical scheme:
[0006] The utility model provides a disconnecting switch, which comprises:
[0007] A shell is provided with a static contact and a moving contact inside, and a mounting hole is arranged on the side wall of the shell;
[0008] An inspection window is arranged at the mounting hole, and is used for observing the static contact and the moving contact in the open state and the static contact and the moving contact in the closed state; the inspection window is provided with an identification mark, which is used for measuring the opening distance data and the overtravel data between the moving contact and the static contact.
[0009] As an optional solution of the above disconnecting switch, the identification mark comprises an opening distance mark and an overtravel mark, the opening distance mark is arranged on one side of the inspection window away from the static contact, and the overtravel mark is arranged on one side of the inspection window close to the static contact; when the moving contact and the static contact are in the open state, the moving contact corresponds to the opening distance mark, and when the moving contact and the static contact are in the closed state, the moving contact corresponds to the overtravel mark.
[0010] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0011] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0012] As an alternative to the above-mentioned isolating switch, the housing comprises a first mounting seat and a second mounting seat, the stationary contact is arranged in the first mounting seat, and the movable contact is arranged in the second mounting seat; a first assembly hole is formed in the side wall of the first mounting seat and penetrates the edge of the first mounting seat, and a second assembly hole is formed in the side wall of the second mounting seat and penetrates the edge of the second mounting seat; the first mounting seat is connected with the second mounting seat, and the first assembly hole and the second assembly hole are spliced to form the mounting hole.
[0013] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0014] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0015] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0016] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0017] As an alternative to the above-mentioned isolating switch, the viewing window is provided with a plurality of spaced apart scale lines along the moving direction of the movable contact, and a part of the plurality of scale lines forms the opening distance mark, and another part forms the overtravel mark.
[0018] The beneficial effects of the present application are as follows:
[0019] The isolator comprises a housing and a viewing window. The housing is internally provided with a static contact and a moving contact, and the opening or closing of an electric circuit can be realized by the opening or closing of the static contact and the moving contact. The side wall of the housing is provided with a mounting hole, and the viewing window is arranged at the mounting hole and is used for observing the static contact and the moving contact in the open state and the static contact and the moving contact in the closed state, so that the staff can directly observe the positions of the static contact and the moving contact in the opening or closing through the viewing window, and it is convenient to judge whether the equipment is abnormal or not. Meanwhile, the viewing window is provided with an identification mark, and the identification mark is used for measuring the opening distance data and the overtravel data between the moving contact and the static contact, so that when the relative positions of the moving contact and the static contact inside the equipment are observed through the viewing window, the identification mark can also be used for comparison at the same time, so as to obtain whether the opening distance data and the overtravel data of the equipment meet the requirements, thereby facilitating the subsequent maintenance and detection of the equipment, improving the overall reliability of the equipment, and providing protection for safe operation. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the contents of the embodiments of the present application and the drawings by those skilled in the art without creating any creative labor.
[0021] Figure 1 is a structural schematic view of the isolator provided by the embodiments of the present application;
[0022] Figure 2 is a structural schematic view of the first mounting seat provided by the embodiments of the present application;
[0023] Figure 3 is a structural schematic view of the second mounting seat provided by the embodiments of the present application;
[0024] Figure 4 is a structural schematic view of the viewing window provided by the embodiments of the present application;
[0025] Figure 5 is a side view of the isolator provided by the embodiments of the present application;
[0026] Figure 6 is a first side view of part of the isolator provided by the embodiments of the present application;
[0027] Figure 7 is a second side view of part of the isolator provided by the embodiments of the present application.
[0028] REFERENCE NUMERALS
[0029] 100, housing; 101, mounting hole;
[0030] 1, first mounting seat; 11, static contact; 12, first assembly hole; 121, first plug-in slot; 2, second mounting seat; 21, dynamic contact; 22, second assembly hole; 221, second plug-in slot; 3, viewing window; 31, identification mark; 311, gap mark; 312, overtravel mark; 32, plug-in part; 321, positioning protrusion. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.
[0033] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0035] In the description of the utility model, need explanation further, unless another explicit provision and limitation, term "arrangement", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection. For ordinary skilled in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances.
[0036] In the utility model, unless another explicit provision and limitation, first feature is "on" or "under" second feature can include that first and second features are directly contacted, also can include that first and second features are not directly contacted but are contacted through additional features between them. Moreover, first feature is "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or just indicates that the horizontal height of first feature is higher than second feature. First feature is "under", "below" and "lower surface" of second feature includes that first feature is directly below and obliquely below second feature, or just indicates that the horizontal height of first feature is less than second feature.
[0037] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.
[0038] The embodiment provides a disconnecting switch, and the opening distance and overtravel of the disconnecting switch can be identified and judged.
[0039] As Figures 1-7 As shown in the figure, the disconnecting switch includes a shell 100 and a viewing window 3. The shell 100 is provided with a static contact 11 and a moving contact 21, and the static contact 11 and the moving contact 21 can realize the on-off of the circuit by opening or closing.
[0040] The side wall of the shell 100 is provided with a mounting hole 101, and the observation window 3 is arranged at the mounting hole 101, and the observation window 3 is used for observing the static contact 11 and the moving contact 21 in the open state and the static contact 11 and the moving contact 21 in the closed state, so that the staff can directly observe the position of the static contact 11 and the moving contact 21 in the open or closed state through the observation window 3, and it is convenient to judge whether the equipment is abnormal, and at the same time, the observation window 3 is provided with an identification mark 31, and the identification mark 31 is used for measuring the opening distance data and the overtravel data between the moving contact 21 and the static contact 11, so that when the relative position of the moving contact 21 and the static contact 11 inside the equipment is observed through the observation window 3, the identification mark 31 can also be used for comparison at the same time, so as to obtain whether the opening distance data and the overtravel data of the equipment meet the requirements, thereby facilitating the subsequent maintenance and detection of the equipment, improving the overall reliability of the equipment, and providing protection for safe operation.
[0041] Specifically, the identification mark 31 includes an opening distance mark 311 and an overtravel mark 312, the opening distance mark 311 is arranged on one side of the observation window 3 away from the static contact 11, and the overtravel mark 312 is arranged on one side of the observation window 3 close to the static contact 11, so that when the moving contact 21 and the static contact 11 are in the open state, the moving contact 21 is away from the static contact 11, at this time, the moving contact 21 corresponds to the opening distance mark 311, so that the staff can directly determine the opening distance data through the corresponding position of the moving contact 21 and the opening distance mark 311, and judge whether the opening distance at this time is abnormal; when the moving contact 21 and the static contact 11 are in the closed state, the moving contact 21 abuts against the static contact 11, at this time, the moving contact 21 corresponds to the overtravel mark 312, so that the staff can directly determine the overtravel data through the corresponding position of the moving contact 21 and the overtravel mark 312, and judge whether the overtravel at this time is abnormal.
[0042] In an embodiment, as shown in Figures 4-7 The observation window 3 is provided with a plurality of spaced scale lines along the moving direction of the moving contact 21, a part of the plurality of scale lines forms the opening distance mark 311, and the other part forms the overtravel mark 312, so that when the moving contact 21 and the static contact 11 are in the open state, the moving contact 21 corresponds to one of the scale lines at the opening distance mark 311, at this time, the opening distance can be determined by reading this scale line; when the moving contact 21 and the static contact 11 are in the closed state, the moving contact 21 corresponds to one of the scale lines at the overtravel mark 312, at this time, the overtravel can be determined by reading this scale line. Optionally, the width of the scale line is 1mm, the interval between the adjacent two scale lines at the opening distance mark 311 is 2mm, and the interval between the adjacent two scale lines at the overtravel mark 312 is also 2mm.
[0043] Specifically, the opening distance mark 311 and the overtravel mark 312 are each provided with 4 scale lines, and the silver point of the moving contact 21 corresponds to the scale line. As shown inFigure 5 and Figure 6 As shown in FIG. 3, when the moving contact 21 and the stationary contact 11 are in the open state, the silver point of the moving contact 21 that can be directly observed by the staff from the viewing window 3 is in the position of the open distance mark 311, i.e. when the silver point of the moving contact 21 is at the fourth scale line (the direction of the drawing is from left to right), it indicates that the open distance is normal; if the silver point of the moving contact 21 exceeds the fourth scale line, it indicates that the open distance is too small and needs to be analyzed and processed by the staff; if the silver point of the moving contact 21 is between the first and third scale lines, it needs to be checked whether there is any abnormal part inside the equipment. Figure 5 and Figure 7 As shown in FIG. 4, when the moving contact 21 and the stationary contact 11 are in the closed state, the silver point of the moving contact 21 that can be directly observed by the staff from the viewing window 3 is in the position of the overtravel mark 312, i.e. when the silver point of the moving contact 21 is at the second scale line (the direction of the drawing is from right to left), it indicates that the overtravel meets the requirements; if the silver point of the moving contact 21 is at the third scale line, it indicates that the overtravel is slightly small and needs attention; if the silver point of the moving contact 21 is at the fourth scale line, it indicates that the closed state is abnormal and needs to be excluded before operation.
[0044] In another embodiment, the viewing window 3 is provided with a plurality of interval digital marks along the moving direction of the moving contact 21, and a part of the plurality of digital marks forms the open distance mark 311 and the other part forms the overtravel mark 312, so that when the moving contact 21 and the stationary contact 11 are in the open state, the moving contact 21 corresponds to one of the digital marks at the open distance mark 311, at this time, by reading the digital mark, the open distance condition can be determined; when the moving contact 21 and the stationary contact 11 are in the closed state, the moving contact 21 corresponds to one of the digital marks at the overtravel mark 312, at this time, by reading the digital mark, the overtravel condition can be determined.
[0045] In the embodiment, the window surface of the viewing window 3 is flush with the side wall of the shell 100, so as to facilitate the observation of the stationary contact 11 and the moving contact 21 through the viewing window 3, and make the overall appearance of the disconnecting switch more beautiful.
[0046] As shown in FIG. 5, the viewing window 3 is provided with a plurality of interval digital marks along the moving direction of the moving contact 21, and a part of the plurality of digital marks forms the open distance mark 311 and the other part forms the overtravel mark 312, so that when the moving contact 21 and the stationary contact 11 are in the open state, the moving contact 21 corresponds to one of the digital marks at the open distance mark 311, at this time, by reading the digital mark, the open distance condition can be determined; when the moving contact 21 and the stationary contact 11 are in the closed state, the moving contact 21 corresponds to one of the digital marks at the overtravel mark 312, at this time, by reading the digital mark, the overtravel condition can be determined. Figures 1-4As shown, the shell 100 comprises a first mounting seat 1 and a second mounting seat 2, the static contact 11 is arranged in the first mounting seat 1, and the dynamic contact 21 is arranged in the second mounting seat 2, so that the static contact 11 and the dynamic contact 21 are arranged separately to reduce the installation difficulty of the static contact 11 and the dynamic contact 21. Among them, the side wall of the first mounting seat 1 is provided with a first assembly hole 12, and the first assembly hole 12 penetrates the edge of the first mounting seat 1, the side wall of the second mounting seat 2 is provided with a second assembly hole 22, and the second assembly hole 22 penetrates the edge of the second mounting seat 2, the first mounting seat 1 is connected with the second mounting seat 2, the first assembly hole 12 and the second assembly hole 22 are spliced to form a mounting hole 101, so that when the observation window 3 is installed in the mounting hole 101, the first mounting seat 1 and the second mounting seat 2 can be first disassembled and separated, so that the observation window 3 is located between the first assembly hole 12 and the second assembly hole 22, and then the first mounting seat 1 and the second mounting seat 2 are connected, thereby realizing the assembly of the observation window 3, and directly providing assembly holes on the first mounting seat 1 and the second mounting seat 2 can realize the assembly of the observation window 3 without affecting the overall volume of the equipment.
[0047] Among them, the outer periphery of the observation window 3 extends a plug-in part 32, the hole wall of the first assembly hole 12 is provided with a first plug-in groove 121, the hole wall of the second assembly hole 22 is provided with a second plug-in groove 221, and the plug-in part 32 is plugged into the first plug-in groove 121 and the second plug-in groove 221, so that through the plug-in of the plug-in part 32 and the first plug-in groove 121 and the second plug-in groove 221, the assembly stability of the observation window 3 between the first mounting seat 1 and the second mounting seat 2 can be ensured, and the displacement of the observation window 3 affecting the measurement accuracy of the identification mark 31 can be avoided. Optionally, the plug-in part 32 protrudes a positioning protrusion 321, one of the groove walls of the first plug-in groove 121 and the second plug-in groove 221 is provided with a recess, and the positioning protrusion 321 can be embedded in the recess, so that through the cooperation of the positioning protrusion 321 and the recess, the installation of the observation window 3 between the first mounting seat 1 and the second mounting seat 2 can be prevented from being mistaken, and the observation window 3 can be prevented from being installed in reverse.
[0048] Further, the shell 100 is provided with mounting holes 101 on opposite sides, and the observation window 3 is arranged at the mounting holes 101, so that the staff can observe from the observation windows 3 on both sides, and the accuracy of identification and judgment is improved. Optionally, the static contact 11 and the dynamic contact 21 each comprise at least two, and the static contact 11 and the dynamic contact 21 on both sides are arranged one by one with the observation window 3, so that each observation window 3 can observe the corresponding static contact 11 and dynamic contact 21, measure the corresponding opening distance data and overtravel data, and avoid missing measurement of one pair of static contact 11 and dynamic contact 21 to affect the subsequent maintenance and detection of the equipment.
[0049] Obviously, the above only preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments here, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application has been described in more detail, but the present application is not limited to the above examples, without departing from the present application, the idea can also include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.
[0050] Note that in the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
Claims
1. A disconnector, characterized in that The utility model relates to a kind of circuit breaker, including: Housing (100), static contact (11) and movable contact (21) are equipped in the housing (100), installation hole (101) is equipped on the lateral wall of the housing (100); Viewing window (3) is equipped at the installation hole (101), the static contact (11) and the movable contact (21) in the open state are observed, and the static contact (11) and the movable contact (21) in the closed state are observed using the viewing window (3);The viewing window (3) is provided with identification mark (31), and the identification mark (31) is used to determine the open distance data and overtravel data between the movable contact (21) and the static contact (11).
2. The disconnector according to claim 1, characterized in that The identification mark (31) includes open distance mark (311) and overtravel mark (312), the open distance mark (311) is equipped on the side of the viewing window (3) away from the static contact (11), and the overtravel mark (312) is equipped on the side of the viewing window (3) close to the static contact (11);When the movable contact (21) and the static contact (11) are in open state, the movable contact (21) corresponds to the open distance mark (311), and when the movable contact (21) and the static contact (11) are in closed state, the movable contact (21) corresponds to the overtravel mark (312).
3. The disconnector according to claim 2, characterized in that The viewing window (3) is provided with a plurality of spaced scale lines along the moving direction of the movable contact (21), and a part of the plurality of scale lines forms the open distance mark (311), and another part forms the overtravel mark (312).
4. The disconnector according to claim 2, characterized in that The viewing window (3) is provided with a plurality of spaced numerical designations along the moving direction of the movable contact (21), and a part of the plurality of numerical designations forms the open distance mark (311), and another part forms the overtravel mark (312).
5. The disconnector according to claim 1, characterized in that The housing (100) includes first mounting seat (1) and second mounting seat (2), the static contact (11) is arranged in the first mounting seat (1), and the movable contact (21) is arranged in the second mounting seat (2);The side wall of the first mounting seat (1) is provided with first assembly hole (12), and the first assembly hole (12) penetrates the edge of the first mounting seat (1), and the side wall of the second mounting seat (2) is provided with second assembly hole (22), and the second assembly hole (22) penetrates the edge of the second mounting seat (2);The first mounting seat (1) is connected with the second mounting seat (2), and the first assembly hole (12) and the second assembly hole (22) are spliced to form the installation hole (101).
6. The disconnector according to claim 5, characterized in that The outer periphery of the viewing window (3) extends with plug-in part (32), the hole wall of the first assembly hole (12) is provided with first plug-in groove (121), the hole wall of the second assembly hole (22) is provided with second plug-in groove (221), and the plug-in part (32) is plugged into the first plug-in groove (121) and the second plug-in groove (221).
7. The disconnector according to claim 6, characterized in that The plug-in part (32) is provided with a positioning protrusion (321), the slot wall of one of the first plug-in slot (121) and the second plug-in slot (221) is provided with a recess, and the positioning protrusion (321) can be embedded in the recess.
8. The disconnector according to claim 1, characterized in that The window surface of the viewing window (3) is flush with the side wall of the shell (100).
9. The disconnector according to any of claims 1 to 8, characterized in that The opposite sides of the shell (100) are respectively provided with the mounting hole (101), and the mounting hole (101) is provided with the viewing window (3).
10. The disconnector according to claim 9, characterized in that The static contact (11) and the dynamic contact (21) each include at least two, and the static contact (11) and the dynamic contact (21) on both sides are each provided one by one with the viewing window (3).