A switch device with leakage fault indication function
By designing a switchgear with leakage fault indication function, the leakage indicator is driven by the trip mechanism to reveal the leakage indicator, the problem of inaccurate judgment of leakage faults in the prior art is solved, and accurate indication of leakage faults and personal safety is achieved.
Patent Information
- Application Number
- CN202411982877.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-04
AI Technical Summary
The existing leakage fault judgment methods are indicated by the position of the leakage electrode handle, and there is a risk of inaccurate judgment and leakage fault being ignored, especially in gap leakage faults, which can easily lead to personal safety threats.
A switching device with leakage fault indication function is designed, including a leakage electrode handle, a leakage indicator, a trip mechanism and a status indicator hole. The leakage indicator is driven by the trip mechanism to reveal the leakage indicator or the normal indication area at the status indicator hole, so as to achieve accurate indication of leakage faults.
This equipment can accurately display the leakage indication area when a leakage fault occurs in the line, ensuring that the circuit breaker trip is caused by leakage faults, avoid misjudgment and leakage faults being ignored, and improve the accuracy of fault judgment and personal safety guarantee.
Smart Images
Figure CN119764126A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of leakage indication, and in particular to a switch device with a leakage fault indication function. Background Art
[0002] Existing residual current operated circuit breakers (RCBOs) mainly determine whether there is leakage in the line by whether the leakage electrode handle is in the closed state or the open state, so as to repair the line. However, there are many disadvantages in indicating only by the state of the handle, and serious leakage faults may even threaten personal safety and lead to adverse consequences. Therefore, it is particularly important to judge the leakage fault. The main disadvantages of the existing indication of leakage by the handle position are as follows:
[0003] 1. During circuit fault inspection and repair, if the leakage electrode handle is manually pulled down, it is impossible to confirm whether there is a leakage fault in the line, and thus it is impossible to confirm whether the circuit breaker is tripped due to the leakage fault. In addition, in many cases, the leakage fault in the line is not a continuous leakage. After an intermittent leakage fault occurs, if the leakage electrode handle is manually closed, the line leakage problem is easily ignored, and the secondary leakage threatens personal safety.
[0004] 2. In many special cases, the leakage electrode handle does not fall off due to line leakage. At this time, it is impossible to accurately determine the cause of the fault simply by relying on the handle to indicate, which brings great difficulties to the troubleshooting of line problems or circuit breaker problems themselves. Summary of the invention
[0005] The present invention aims to provide a switch device with a leakage fault indication function to solve the above-mentioned technical problems.
[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a switch device with a leakage fault indication function, comprising a housing and a leakage electrode handle, a leakage indicator, a tripping mechanism, and a tripping device installed in the housing, the leakage electrode handle is connected in a transmission manner to drive the tripping mechanism to perform manual opening and closing, the tripping device is connected in a transmission manner to drive the tripping mechanism to perform tripping and opening, a status indication hole is provided on the housing, the leakage indicator has a leakage indication area and a normal indication area, and the tripping mechanism is used to drive the leakage indicator to move back and forth, so that the leakage indication area and the normal indication area are switched and exposed at the status indication hole;
[0007] When the line is normal and the switch is manually opened or closed, the leakage indicator does not work, and the status indicator hole always shows the normal indication area;
[0008] When a leakage fault occurs in the line and causes the circuit breaker to trip, the tripping mechanism drives the leakage indicator to operate, and the status indicator hole switches from the normal indication area to the leakage indication area for display;
[0009] When the circuit breaker is tripped and the line leakage fault is repaired and the circuit breaker is manually closed again, the tripping mechanism drives the leakage indicator to operate, and the status indicator hole switches from the leakage indication area to the normal indication area for display.
[0010] Preferably, the tripping mechanism comprises a U-shaped connecting rod, an intermediate piece, a tripping rod, a tripping buckle, a reset plate and a lock buckle; the leakage electrode handle, the intermediate piece, the tripping rod, the lock buckle and the reset plate are all rotatably pivotally connected in the housing, and the tripping buckle is pivotally connected to the tripping rod; the leakage electrode handle is transmission-connected to the tripping buckle through the U-shaped connecting rod, the tripping buckle is movably locked and matched with the lock buckle, the tripping rod and the intermediate piece are transmission-matched, and the tripping buckle and the intermediate piece are transmission-matched with the leakage indicator respectively;
[0011] When the line is normal and the switch is manually opened and closed, the trip button and the intermediate piece are not in contact with the leakage indicator to prevent the leakage indicator from being driven to operate, and the normal indication area is always visible at the status indication hole;
[0012] When a leakage fault occurs in the line and causes the circuit breaker to trip, the push rod of the tripper pushes the reset plate to rotate forward so that the lock buckle rotates forward and cooperates with the trip buckle to release the lock, and then the trip buckle rotates reversely to drive the leakage indicator to move in the first direction, so that the status indicator hole switches from the normal indication area to the leakage indication area for exposure;
[0013] When the circuit breaker is tripped and the line leakage fault is repaired and the circuit breaker is manually closed again, the trip rod rotates in the reverse direction to drive the intermediate part to rotate forward, and then drives the leakage indicator to move in the second direction, so that the status indication hole switches from the leakage indication area to the normal indication area for exposure.
[0014] Preferably, the leakage electrode handle and the release are respectively arranged on the upper and lower sides of the tripping mechanism. The leakage electrode handle is located on the upper side of the tripping latch and is transmission-connected to it through a U-shaped connecting rod. The release is located on the lower side of the reset plate. The push rod of the release is used to push the reset plate upward to rotate forward so that the lock rotates forward and cooperates with the tripping latch to release the lock.
[0015] Preferably, a first protrusion and a second protrusion are provided on the bottom side of the leakage indicator, a first transmission part is provided on the top side of the jump button, and the jump button and the leakage indicator are in abutment contact with the first protrusion through the first transmission part to achieve transmission cooperation, and a second transmission part is provided on the top side of the middle piece, and the middle piece and the leakage indicator are in abutment contact with the second protrusion through the second transmission part to achieve transmission cooperation.
[0016] Preferably, a third transmission part is provided on one side of the tripping rod close to the middle piece, and a fourth transmission part is provided on one side of the middle piece close to the tripping rod, and the tripping rod and the middle piece are in abutment contact with each other through the third transmission part and the fourth transmission part to achieve transmission cooperation.
[0017] Preferably, the leakage indication area is red, and the normal indication area is gray.
[0018] Preferably, the first direction is the left direction, the second direction is the right direction, the normal indication area and the leakage indication area are arranged on the left and right sides of the top side of the leakage indicator, and the status indication hole is located above the leakage indicator.
[0019] Preferably, a blocking convex buckle is provided on at least one side of the leakage indicator in the shell, and an elastic limiting buckle is provided on at least one of the front and rear sides of the leakage indicator. The elastic limiting buckle cooperates with the blocking convex buckle to block and limit, and the blocking convex buckle is used to block the elastic limiting buckle on the left or right side of the blocking convex buckle.
[0020] Preferably, the front and rear sides of the leakage indicator are respectively extended toward the right end to form elastic cantilevers, and the elastic limiting buckle is located on one side of the extended end of the elastic cantilever.
[0021] Preferably, the switchgear is a circuit breaker.
[0022] The present invention has the following beneficial effects:
[0023] 1. Only when a leakage fault occurs in the line, the status indicator hole will reveal the leakage indication area of the leakage indicator, that is, display a specific color, so as to accurately indicate that the residual current operated circuit breaker is tripped due to a leakage fault in the line, to prevent the situation that when the line fails to be repaired, after manually turning the closing leakage electrode handle, it is impossible to confirm whether there is a leakage fault in the line, and thus it is impossible to confirm whether the circuit breaker is tripped due to a leakage fault, so as to accurately judge the leakage fault, timely and accurately repair or cut off the circuit to ensure personal safety.
[0024] 2. It can accurately indicate whether the circuit breaker tripping is caused by a leakage fault, which is convenient for accurate analysis of the cause of the fault, so that the line problem or the circuit breaker problem can be quickly and accurately checked, improving work efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 Schematic diagram of an exploded view of an embodiment of the present invention.
[0026] Figure 2 It is a top view of the embodiment of the present invention in a normal open state.
[0027] Figure 3 It is a left view of the embodiment of the present invention in a normal open state.
[0028] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the present invention in a normal open state.
[0029] Figure 5 yes Figure 4 A magnified schematic diagram of center A.
[0030] Figure 6 It is a schematic diagram of the coordination of some components of an embodiment of the present invention in a normal open state.
[0031] Figure 7 It is a top view of the embodiment of the present invention in a normal closing state.
[0032] Figure 8 It is a left view of the embodiment of the present invention in a normal closing state.
[0033] Fig. 9 It is a schematic diagram of the internal structure of an embodiment of the present invention in a normal closing state.
[0034] Fig.10 yes Fig. 9 A magnified schematic diagram of point B in the middle.
[0035] Fig.11 It is a schematic diagram of the coordination of some components of an embodiment of the present invention in a normal closing state.
[0036] Fig.12 It is a top view of the embodiment of the present invention in a tripping state due to a leakage fault.
[0037] Fig.13 It is a left view of the embodiment of the present invention in a leakage fault tripping and opening state.
[0038] Fig.14 It is a schematic diagram of the process of tripping and opening caused by a leakage fault in an embodiment of the present invention.
[0039] Fig.15 yes Fig.14 Enlarged schematic diagram of point C in the middle.
[0040] Fig.16 It is a schematic diagram of the coordination of some components of an embodiment of the present invention in a tripping state due to a leakage fault.
[0041] Fig.17 It is a schematic structural diagram of a leakage indicator according to an embodiment of the present invention.
[0042] Fig.18 It is a schematic diagram of the internal structure of the base of an embodiment of the present invention.
[0043] Fig.19 It is a schematic diagram of installing the leakage indicator in the base according to the embodiment of the present invention.
[0044] Figures are marked: 1 shell, 11 base, 12 side cover, 13 blocking protrusion, 14 status indication hole, 2 leakage indicator, 21 leakage indication area, 22 normal indication area, 23 first protrusion, 24 second protrusion, 25 elastic cantilever, 26 elastic limit buckle, 3 leakage electrode handle, 4 U-shaped connecting rod, 5 middle piece, 51 second transmission part, 52 fourth transmission part, 6 tripping rod, 61 third transmission part, 7 tripping buckle, 71 locked part, 72 first transmission part, 8 reset plate, 9 and lock buckle, 91 locking part, 10 tripper. DETAILED DESCRIPTION
[0045] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0046] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0048] For the convenience of description, the forward and reverse directions are respectively Figure 4 The viewing angles in the figure are in the clockwise and counterclockwise directions of the reference datum.
[0049] See also Figure 1-19As shown, as an embodiment of the present invention, a switch device with a leakage fault indication function is provided, specifically a double-wire electromagnetic residual current operated circuit breaker with overcurrent protection, comprising a housing 1 and a leakage electrode handle 3, a leakage indicator 2, a tripping mechanism, and a tripper 10 installed in the housing 1. The leakage electrode handle 3 is connected to the tripping mechanism in a transmission manner to drive the tripping mechanism to perform manual opening and closing. The tripper 10 is connected to the tripping mechanism in a transmission manner to drive the tripping mechanism to perform tripping and opening. A status indication hole 14 is provided on the housing 1. The leakage indicator 2 has a leakage indication area 21 and a normal indication area 22. The tripping mechanism is used to drive the leakage indicator 2 to move back and forth, so that the leakage indication area 21 and the normal indication area 22 are switched and exposed at the status indication hole 14.
[0050] When the circuit breaker is in normal condition and the circuit breaker is manually opened and closed, the leakage indicator 2 does not operate (i.e., the tripping mechanism does not drive the leakage indicator 2 to operate), and the normal indication area 22 is always visible at the status indication hole 14, indicating that there is no leakage fault in the circuit.
[0051] When a leakage fault occurs in the circuit breaker and causes the circuit breaker to trip, the tripping mechanism drives the leakage indicator 2 to operate, and the status indicator hole 14 switches from the normal indication area 22 to the leakage indication area 21 to be displayed, thereby indicating that there is a leakage fault in the circuit.
[0052] When the circuit breaker is tripped and the line leakage fault is repaired and the circuit breaker is manually closed again, the tripping mechanism drives the leakage indicator 2 to operate, and the status indicator hole 14 switches from the leakage indication area 21 to the normal indication area 22 to be displayed, thereby indicating that the line leakage fault has returned to normal.
[0053] Specifically, the tripping mechanism includes a U-shaped connecting rod 4, an intermediate piece 5, a tripping rod 6, a tripping buckle 7, a reset plate 8 and a lock buckle 9. The leakage electrode handle 3, the intermediate piece 5, the tripping rod 6, the lock buckle 9 and the reset plate 8 can be rotatably pivoted and connected in the housing 1, and the tripping buckle 7 is pivotally connected to the tripping rod 6. The leakage electrode handle 3 is transmission-connected to the tripping buckle 7 through the U-shaped connecting rod 4, and the tripping buckle 7 and the lock buckle 9 are movably locked and matched. The tripping rod 6 and the intermediate piece 5 are transmission-matched, and the tripping buckle 7 and the intermediate piece 5 are respectively transmission-matched with the leakage indicator 2. The leakage indication area 21 is red, which is more eye-catching and convenient for staff to observe. The normal indication area 22 is gray, and the area of the leakage indication area 21 is much larger than the area of the normal indication area 22, ensuring the active display range of the leakage indication area 21;
[0054] When the circuit breaker is in normal condition and the circuit breaker is manually opened and closed, the trip button 7 and the intermediate component 5 are not in contact with the leakage indicator 2, and thus the leakage indicator 2 will not be driven to operate. The normal indication area 22 (displayed in gray) is always displayed at the status indication hole 14, indicating that there is no leakage fault in the circuit.
[0055] When a leakage fault occurs in the line and causes the circuit breaker to trip, the push rod of the release 10 pushes the reset plate 8 to rotate forward so that the lock buckle 9 rotates forward and releases the locking cooperation with the trip buckle 7, and then the trip buckle 7 rotates reversely to drive the leakage indicator 2 to move in the first direction, so that the status indicator hole 14 switches from the normal indication area 22 to the leakage indication area 21 for display (the display switches from gray to red), thereby indicating that there is a leakage fault in the line;
[0056] When the circuit breaker is tripped and the circuit breaker is manually closed again after the leakage fault of the line is repaired, the trip rod 6 rotates in the reverse direction to drive the intermediate piece 5 to rotate forward, thereby driving the leakage indicator 2 to move in the second direction, so that the status indicator hole 14 switches from the leakage indication area 21 to the normal indication area 22 for display (the display switches from red to gray), thereby indicating that the leakage fault of the line has returned to normal.
[0057] Of course, the switch device of this embodiment may be other switch devices such as relays in addition to the circuit breaker.
[0058] Specifically, the lock buckle 9 is provided with a locking portion 91, the trip buckle 7 is provided with a locked portion 71 that can be locked with the locking portion 91, the pivot axis of the trip rod 6 and the housing 1 is the D axis, the pivot axis of the trip buckle 7 and the trip rod 6 is the E axis, and the D axis and the E axis are not coaxial. In the circuit breaker off state, the leakage electrode handle 3 is toggled, and the trip buckle 7 is driven to rotate in the opposite direction around the E axis through the linkage of the U-shaped connecting rod 4, until the locked portion 71 and the locking portion 91 are locked and matched (buckle locked) due to the rotation of the trip buckle 7, at this time, the lock buckle 9 forms a limit for the trip buckle 7, and the locking portion 91 provides a fulcrum for the trip buckle 7. Under the continuous force of the leakage electrode handle 3, the trip buckle 7 rotates in the opposite direction around the D axis together with the trip rod 6, and the trip rod 6 rotates in the opposite direction to drive the intermediate member 5 to rotate forward, and then drives the leakage indicator 2 to move in the second direction, so that the state indicating hole 14 switches from the leakage indicating area 21 to the normal indicating area 22 for exposure.
[0059] In this embodiment, the leakage electrode handle 3 and the release 10 are respectively arranged on the upper and lower sides of the tripping mechanism. The leakage electrode handle 3 is located on the upper side of the tripping buckle 7 and is transmission-connected with it (the tripping buckle 7) through the U-shaped connecting rod 4. The release 10 is located on the lower side of the reset plate 8. The push rod of the release 10 is used to push the reset plate 8 upward to rotate forward so that the lock buckle 9 rotates forward and releases the locking cooperation with the tripping buckle 7. Such an arrangement makes the assembly layout of each component more reasonable and compact.
[0060] In this embodiment, a first protrusion 23 and a second protrusion 24 are provided on the bottom side of the leakage indicator 2, a first transmission part 72 is provided on the top side of the jump button 7, and the jump button 7 and the leakage indicator 2 are in contact with each other through the first transmission part 72 and the first protrusion 23 to achieve transmission cooperation, and a second transmission part 51 is provided on the top side of the middle piece 5, and the middle piece 5 and the leakage indicator 2 are in contact with each other through the second transmission part 51 and the second protrusion 24 to achieve transmission cooperation.
[0061] In this embodiment, a third transmission part 61 is provided on the side of the tripping rod 6 close to the middle piece 5, and a fourth transmission part 52 is provided on the side of the middle piece 5 close to the tripping rod 6. The tripping rod 6 and the middle piece 5 are in abutment with each other through the third transmission part 61 and the fourth transmission part 52 to achieve transmission cooperation.
[0062] In this embodiment, a first elastic member, a second elastic member and a third elastic member for providing a reset elastic force are also included. The first elastic member, the second elastic member and the third elastic member are all torsion springs. One end of the first elastic member abuts against the housing 1, and the other end abuts against the reset plate 8, so as to rely on its elastic force to maintain the contact between the reset plate 8 and the push rod of the releaser 10, and realize the rotation reset of the reset plate 8 after the quick release, thereby providing a reset force for the push rod. One end of the second elastic member abuts against the housing 1, and the other end abuts against the lock 9, so as to realize the rotation reset of the lock 9 after the quick release. One end of the third elastic member abuts against the housing 1, and the other end abuts against the drain electrode handle 3, so as to realize the rotation reset of the drain electrode handle 3 after the quick release.
[0063] In this embodiment, the first direction is the left direction, and the second direction is the right direction, that is, the leakage indicator 2 is arranged in the housing 1 to move back and forth left and right, the normal indication area 22 and the leakage indication area 21 are arranged left and right on the top side of the leakage indicator 2, and the status indication hole 14 is located above the leakage indicator 2, thereby ensuring the display effect.
[0064] In this embodiment, the shell 1 includes a base 11 and a side cover 12 assembled with each other, and a blocking protrusion 13 is provided on at least one side of the leakage indicator 2 in the shell 1, and an elastic limiting buckle 26 is provided on at least one side of the front and rear sides of the leakage indicator 2. The elastic limiting buckle 26 cooperates with the blocking protrusion 13 to block and limit. The blocking protrusion 13 is used to block the elastic limiting buckle 26 on the left or right side of the blocking protrusion 13 to ensure the stability of the leakage indication area 21 or the normal indication area 22 of the leakage indicator 2 at the status indication hole 14, to prevent the leakage indicator 2 from moving due to vibration of the circuit breaker or other reasons, thereby causing the leakage indication area 21 or the normal indication area 22 to be unable to be accurately exposed at the status indication hole 14, and thus unable to accurately indicate the fault condition of the line.
[0065] In this embodiment, the front and rear sides of the leakage indicator 2 extend toward the right end to form an elastic cantilever 25, and the elastic limit buckle 26 is located on one side of the extended end of the elastic cantilever 25, so as to enhance the elastic force of the elastic limit buckle 26, ensure the stability of the blocking and limiting cooperation between the elastic limit buckle 26 and the blocking convex buckle 13, and ensure the smoothness of the elastic limit buckle 26 moving back and forth left and right.
[0066] The working principle of this embodiment is as follows:
[0067] See also Figure 4-6 As shown (only the manual opening state is shown in the figure), when the circuit of the circuit breaker is normal and the circuit is manually opened and closed, the trip button 7 and the intermediate component 5 are not in contact with the leakage indicator 2, and thus the leakage indicator 2 will not be driven to operate, and the normal indication area 22 (displayed in gray) is always displayed at the status indication hole 14, thereby indicating that there is no leakage fault in the circuit;
[0068] See also Figure 14-16 As shown, when a leakage fault occurs in the line and causes the circuit breaker to trip and open, the push rod of the tripper 10 pushes the reset plate 8 upward to rotate forward so that the lock buckle 9 rotates forward and releases the locking cooperation with the trip buckle 7, thereby causing the trip buckle 7 to rotate in the opposite direction, until the first transmission part 72 of the trip buckle 7 abuts against the first protrusion 23 of the leakage indicator 2, thereby pushing the leakage indicator 2 to move leftward, so that the elastic limit buckle 26 passes over the left side of the blocking protrusion 13, and then the trip buckle 7 is elastically reset to the position of the opening state. At this time, the leakage handle is in the position of the opening state, and the state indicator hole 14 switches from the normal indication area 22 to the leakage indication area 21 for display (the display switches from gray to red), thereby indicating that there is a leakage fault in the line;
[0069] See also Figure 9-11 As shown, when the circuit breaker is tripped and the circuit breaker is manually closed again after the leakage fault of the line is repaired, first, the leakage electrode handle 3 of the circuit breaker is in the position of the opening state, and the leakage electrode handle 3 is moved toward the position of the closing state (clockwise), and the leakage electrode handle 3 drives the trip buckle 7 to rotate in the opposite direction through the U-shaped connecting rod 4 until the locked part 71 of the trip buckle 7 is locked and matched with the locking part 91 of the lock buckle 9, and the movement of the trip buckle 7 is locked, thereby driving the trip rod 6 to rotate in the opposite direction, and the third transmission part 61 of the trip rod 6 abuts against the fourth transmission part of the middle piece 5, thereby driving the middle piece 5 to rotate forward, and the second transmission part 51 of the middle piece 5 abuts against the second protrusion 24 of the leakage indicator 2, thereby pushing the leakage indicator 2 to move to the right, so that the elastic limit buckle 26 passes over the right side of the blocking protrusion 13, so that the status indication hole 14 switches from the leakage indication area 21 to the normal indication area 22 for display (the display switches from red to gray), thereby indicating that the leakage fault of the line has returned to normal.
[0070] In summary, the switch device with leakage fault indication function of this embodiment has the following advantages:
[0071] 1. Only when a leakage fault occurs in the line, the status indication hole 14 will reveal the leakage indication area 21 of the leakage indicator 2, that is, display a specific color, and then distinguish it from other states, so as to accurately indicate that the residual current operated circuit breaker is tripped due to a leakage fault in the line, and prevent the situation that when the line fails to be repaired, after manually turning the closing leakage electrode handle 3, it is impossible to confirm whether there is a leakage fault in the line, and thus it is impossible to confirm whether the circuit breaker is tripped due to a leakage fault, so that the leakage fault can be accurately judged, and the circuit can be repaired or cut off in time and accurately to ensure personal safety.
[0072] 2. It can accurately indicate whether the circuit breaker tripping is caused by a leakage fault, which is convenient for accurate analysis of the cause of the fault, so that the line problem or the circuit breaker problem can be quickly and accurately checked, improving work efficiency and reducing costs.
[0073] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims will fall within the scope of protection of the present invention.
Claims
1. A switch device with leakage fault indication function, characterized in that: It includes a housing and a leakage electrode handle, a leakage indicator, a tripping mechanism, and a tripper installed in the housing. The leakage electrode handle is connected to the tripping mechanism in a transmission manner to drive the tripping mechanism to manually open and close the switch. The tripper is connected to the tripping mechanism in a transmission manner to drive the tripping mechanism to trip and open the switch. A status indication hole is provided on the housing. The leakage indicator has a leakage indication area and a normal indication area. The tripping mechanism is used to drive the leakage indicator to move back and forth, so that the leakage indication area and the normal indication area are switched and exposed at the status indication hole. When the line is normal and the switch is manually opened or closed, the leakage indicator does not work, and the status indicator hole always shows the normal indication area; When a leakage fault occurs in the line and causes the circuit breaker to trip, the tripping mechanism drives the leakage indicator to operate, and the status indicator hole switches from the normal indication area to the leakage indication area for display; When the circuit breaker is tripped and the line leakage fault is repaired and the circuit breaker is manually closed again, the tripping mechanism drives the leakage indicator to operate, and the status indicator hole switches from the leakage indication area to the normal indication area for display.
2. The switch device with leakage fault indication function according to claim 1 is characterized in that: The tripping mechanism includes a U-shaped connecting rod, an intermediate piece, a tripping rod, a tripping buckle, a reset plate and a lock buckle. The leakage electrode handle, the intermediate piece, the tripping rod, the lock buckle and the reset plate can be rotatably pivoted and connected in the housing, and the tripping buckle is pivotally connected to the tripping rod. The leakage electrode handle is connected to the tripping buckle through the U-shaped connecting rod, the tripping buckle is movably locked with the lock buckle, the tripping rod and the intermediate piece are in transmission cooperation, and the tripping buckle and the intermediate piece are respectively in transmission cooperation with the leakage indicator. When the line is normal and the switch is manually opened and closed, the trip button and the intermediate piece are not in contact with the leakage indicator to prevent the leakage indicator from being driven to operate, and the normal indication area is always visible at the status indication hole; When a leakage fault occurs in the line and causes the circuit breaker to trip, the push rod of the tripper pushes the reset plate to rotate forward so that the lock buckle rotates forward and cooperates with the trip buckle to release the lock, and then the trip buckle rotates reversely to drive the leakage indicator to move in the first direction, so that the status indicator hole switches from the normal indication area to the leakage indication area for exposure; When the circuit breaker is tripped and the line leakage fault is repaired and the circuit breaker is manually closed again, the trip rod rotates in the reverse direction to drive the intermediate part to rotate forward, and then drives the leakage indicator to move in the second direction, so that the status indication hole switches from the leakage indication area to the normal indication area for exposure.
3. The switch device with leakage fault indication function according to claim 2 is characterized in that: The leakage electrode handle and the release are respectively arranged on the upper and lower sides of the tripping mechanism. The leakage electrode handle is located on the upper side of the tripping buckle and is transmission-connected with it through a U-shaped connecting rod. The releaser is located on the lower side of the reset plate. The push rod of the releaser is used to push the reset plate upward to rotate forward so that the lock buckle rotates forward and cooperates with the tripping buckle to release the lock.
4. The switch device with leakage fault indication function according to claim 2, characterized in that: A first protrusion and a second protrusion are arranged on the bottom side of the leakage indicator, a first transmission part is arranged on the top side of the jump button, and the jump button and the leakage indicator are in contact with each other through the first transmission part and the first protrusion to achieve transmission cooperation, and a second transmission part is arranged on the top side of the middle piece, and the middle piece and the leakage indicator are in contact with each other through the second transmission part and the second protrusion to achieve transmission cooperation.
5. The switch device with leakage fault indication function according to claim 2, characterized in that: A third transmission part is arranged on one side of the tripping rod close to the middle piece, and a fourth transmission part is arranged on one side of the middle piece close to the tripping rod. The tripping rod and the middle piece are in abutment contact with each other through the third transmission part and the fourth transmission part to achieve transmission cooperation.
6. The switch device with leakage fault indication function according to claim 1, characterized in that: The leakage indication area is red and the normal indication area is gray.
7. The switch device with leakage fault indication function according to claim 2, characterized in that: The first direction is the left direction, the second direction is the right direction, the normal indication area and the leakage indication area are arranged on the left and right sides of the top side of the leakage indicator, and the state indication hole is located above the leakage indicator.
8. The switch device with leakage fault indication function according to claim 7, characterized in that: A blocking convex buckle is provided on at least one side of the leakage indicator in the shell, and an elastic limiting buckle is provided on at least one side of the front and rear sides of the leakage indicator. The elastic limiting buckle cooperates with the blocking convex buckle for blocking and limiting. The blocking convex buckle is used to block the elastic limiting buckle on the left or right side of the blocking convex buckle.
9. The switch device with leakage fault indication function according to claim 8, characterized in that: The front and rear sides of the leakage indicator are respectively extended toward the right end to form elastic cantilevers, and the elastic limiting buckle is located on one side of the extended end of the elastic cantilever.
10. The switch device with leakage fault indication function according to any one of claims 1 to 9, characterized in that: The switchgear is a circuit breaker.