CN210720623U - Fault indicator and mounting tool thereof - Google Patents

Abstract

The utility model relates to a power line fault indication equipment technical field especially relates to a fault indicator and mounting tool thereof. The fault indicator comprises a shell and a non-energy-storage wire clamping mechanism, wherein the non-energy-storage wire clamping mechanism comprises a wire clamp and a locking mechanism, the wire clamp can tightly clamp a power line under the driving of an installing tool, the locking mechanism is provided with a locking portion and a triggering portion, the locking portion is used for tightly clamping the wire clamp on the power line, and the triggering portion can release the locking of the locking portion on the wire clamp under the triggering of the installing tool. The clamp is driven by the installation tool to clamp the power line, and the locking mechanism locks the clamp so that the fault indicator can be reliably clamped and fixed on the power line. Meanwhile, when the fault indicator is installed, the wire clamp can be opened only by unlocking the wire clamp by the locking mechanism, so that the installation is simpler and labor-saving, and the operation is more friendly. When the fault indicator is disassembled, the locking mechanism is triggered by the mounting tool to unlock the wire clamp, and the operation is convenient.

Description

Fault indicator and mounting tool thereof

Technical Field

The utility model relates to a power line fault indication equipment technical field especially relates to a fault indicator and mounting tool thereof.

Background

The fault indicator is suitable for distribution lines, is used for collecting each phase of load current and voltage to ground, and can carry out short circuit, ground fault detection, live indication and local fault indication. In order to meet the requirement on the stability of wire clamping of the fault indicator in the current market, an energy storage wire clamping mechanism with larger elasticity is arranged on the fault indicator, so that the fault indicator and a power line are clamped tightly. When the fault indicator is installed, an operator needs to open and fix the energy storage wire clamping mechanism of the fault indicator on an installation tool, the installation operation is difficult, and the operability is not friendly. And when dismantling the fault indicator from the overhead line, operating personnel need with the locking direction of the energy storage wire clamping mechanism of accurate alignment fault indicator of mounting tool, the operation is unfriendly. The installation and the dismantlement process of fault indicator need many people to operate under the higher condition of high-voltage cable, and the process is loaded down with trivial details, and the operation is difficult and have certain danger.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a fault indicator and an installation tool thereof, aiming at the problems of difficult installation and disassembly and unfriendly operation of the traditional fault indicator.

A fault indicator comprising:

a housing; and

non-energy storage wire clamping mechanism sets up on the shell, and non-energy storage wire clamping mechanism includes fastener and locking mechanism, and the fastener rotationally connects on the shell, and the fastener can press from both sides tight power line under the drive of mounting tool, and locking mechanism sets up between shell and fastener, and locking mechanism has locking portion and trigger part, and locking portion is used for locking the fastener relative to the shell when the fastener presss from both sides tight power line, and trigger part can cooperate with the mounting tool to remove the locking of locking portion to the fastener under the triggering of mounting tool.

In one embodiment, the locking mechanism is a ratchet locking mechanism, the locking mechanism comprises a pawl and a ratchet wheel, the pawl is arranged on one of the shell and the wire clamp, the ratchet wheel corresponding to the pawl is arranged on the other of the shell and the wire clamp, a locking part and a triggering part are both arranged on the pawl, the locking part and the ratchet wheel are matched to lock the wire clamp when the wire clamp clamps the power line, and the triggering part can release the locking of the locking part on the wire clamp under the triggering of the installation tool.

In one embodiment, the locking part and the triggering part are respectively arranged at two opposite ends of the pawl, the middle part of the pawl is rotatably connected to the shell, and the triggering part and the locking part move in opposite directions around the middle part of the pawl;

the ratchet wheel can relatively fixedly be connected on the fastener, and the locking portion is used for cooperating with the ratchet wheel to locking ratchet wheel or release the ratchet wheel, when the trigger part towards the motion of keeping away from one side of shell to preset the position, locking portion locking ratchet wheel, when the trigger part receives the external force of orientation shell one side that mounting tool applyed, locking portion release ratchet wheel.

In one embodiment, the locking mechanism further comprises a locking compression spring disposed between the housing and the trigger part, the locking compression spring being configured to provide a restoring force to the trigger part away from the housing.

In one embodiment, the fault indicator further comprises a power taking mechanism arranged on the housing, the power taking mechanism comprises a first power taking assembly and a second power taking assembly, the first power taking assembly is fixedly connected to the housing, the second power taking assembly is rotatably connected to the first power taking assembly, the second power taking assembly is provided with a first position and a second position, the first position and the second position are opened relative to the first power taking assembly, when the second power taking assembly is located at the first position, an opening used for passing through a power line is formed between the first power taking assembly and the second power taking assembly, when the second power taking assembly is located at the second position, the first power taking assembly and the second power taking assembly are closed to form a power taking closed loop passage surrounding the power line, and the wire clamp is matched with the second power taking assembly and can drive the second power taking assembly to move from the second position to the first position.

In one embodiment, the wire clamp is provided with a hollow part avoiding the second electricity taking assembly, a limiting part is arranged between the wire clamp and the second electricity taking assembly, and when the wire clamp rotates, the wire clamp drives the second electricity taking assembly to move towards the first position through the limiting part.

In one embodiment, the fault indicator further comprises an elastic resetting member, the elastic resetting member is arranged between the first power taking assembly and the second power taking assembly, and the elastic resetting member is used for providing resetting force for the second power taking assembly to move towards the second position.

In one embodiment, the elastic reset element comprises a torsion spring, the torsion spring is sleeved on an articulated shaft connected with the first power taking assembly and the second power taking assembly, a torsion arm on one side of the torsion spring is relatively and fixedly abutted against the first power taking assembly, and a torsion arm on the other side of the torsion spring is abutted against the second power taking assembly.

In one embodiment, the fault indicator further comprises a fault display mechanism arranged on the housing, and the fault display mechanism is connected with the power taking mechanism and used for indicating whether the line of the power line has a fault or not.

In one embodiment, the wire clamp is further provided with a fitting portion for contact fitting with the driving claw of the installation tool so that the wire clamp can clamp the power line by being carried by the driving claw of the installation tool.

A fault indicator installation tool for loading and unloading a fault indicator according to any one of the above aspects, comprising:

a housing having a receiving cavity for receiving a fault indicator;

the bracket is arranged on the shell and is positioned on one side of the opening of the accommodating cavity;

the driving clamping jaw is rotatably arranged on the bracket and is provided with an opening position far away from the opening of the containing cavity and a closing position close to the opening of the containing cavity; and

the first elastic piece is arranged between the driving clamping jaw and the support and used for providing elastic restoring force moving towards the closed position for the driving clamping jaw, when the driving clamping jaw is located at the open position, the driving clamping jaw avoids an opening for accommodating the cavity, and when the fault indicator is installed to the accommodating cavity and the driving clamping jaw is separated from the open position, the driving clamping jaw can move towards the closed position under the restoring force action of the first elastic piece so as to drive the wire clamp to clamp the power line.

In one embodiment, the mounting tool for the fault indicator further comprises a trigger buckle rotatably connected to the bracket, wherein the trigger buckle is used for buckling the wire clamp when the fault indicator is mounted in the accommodating cavity so as to keep the wire clamp in an open state.

In one embodiment, the mounting tool for the fault indicator further comprises a second elastic member mounted in the receiving cavity, and the second elastic member is used for providing an elastic force for the fault indicator to be pulled out of the receiving cavity when the fault indicator is mounted in the receiving cavity.

In one embodiment, the mounting tool for the fault indicator further comprises a stop structure disposed between the drive dog and the bracket for fixing the position of the drive dog relative to the bracket when the drive dog is in the open position.

In one embodiment, the limiting structure comprises:

the limiting seat is arranged on the bracket;

the limiting knob is rotatably arranged on the limiting seat in a penetrating manner, and one end of the limiting knob can extend outwards from the limiting seat or retract into the limiting seat; and

and the limiting groove corresponds to the limiting knob and is arranged on the driving clamping jaw, and when the driving clamping jaw is positioned at an opening position, one end of the limiting knob extends outwards from the limiting seat and is clamped in the limiting groove.

In one embodiment, the mounting tool of the fault indicator further comprises a dismounting lock tongue which is arranged on the shell and located at the opening of the accommodating cavity, the dismounting lock tongue is provided with an elastic extending state and a retracting state, when the dismounting lock tongue is in the retracting state, the dismounting lock tongue avoids the opening of the accommodating cavity, and when the dismounting lock tongue is in the elastic extending state, the dismounting lock tongue can be abutted against the surface of the fault indicator so as to lock the fault indicator in the accommodating cavity.

The beneficial effects of the utility model include:

the installation tool drives the wire clamp to clamp the power line, and the locking mechanism is used for locking the position of the wire clamp, so that the fault indicator can be reliably clamped and fixed on the power line, and the fault indicator is reliably connected with the power line when power is taken. Therefore, the wire clamping stability of the fault indicator is improved, and the reliable work of the fault indicator is ensured. Meanwhile, when the fault indicator is installed, the wire clamp can be opened only by applying small force to the trigger part to release the locking of the locking mechanism to the wire clamp, and the traditional method that the energy storage wire clamping mechanism is opened by overcoming large elastic force is not needed. And when the fault indicator needs to be detached from the overhead power line, the locking mechanism can be used for unlocking the wire clamp only by matching the installation tool with the trigger part. Thus, the utility model discloses a fault indicator's installation is more convenient with the dismantlement, operates simple labour saving more, operates friendlier.

Drawings

Fig. 1 is a schematic structural diagram of a fault indicator according to an embodiment of the present invention;

FIG. 2 is an exploded view of the structure shown in FIG. 1;

fig. 3 is a schematic structural diagram of a mounting tool for a fault indicator according to an embodiment of the present invention;

FIG. 4 is an exploded view of the structure shown in FIG. 3;

FIG. 5 is a schematic view of the structure shown in FIG. 1 installed into the structure shown in FIG. 3;

FIG. 6 is a schematic diagram of the fault indicator of the configuration of FIG. 5 loaded onto a power line;

FIG. 7 is a schematic view of the installation tool shown in FIG. 6 shown disengaged from the fault indicator;

FIG. 8 is a schematic view of the structure shown in FIG. 3 housing the structure shown in FIG. 1;

FIG. 9 is a schematic view of the fault indicator shown in FIG. 8 disengaged from the power line;

FIG. 10 is a schematic view of the structure shown in FIG. 3 with the structure shown in FIG. 1 unloaded from the power line;

fig. 11 is an exploded view of the structure of fig. 3 showing the removal of the locking bolt;

fig. 12 is a sectional view of the structure of fig. 3 with the release latch in an elastically extended position;

fig. 13 is a sectional view of the structure of fig. 3 with the release latch in a retracted position.

Description of reference numerals:

10-a fault indicator; 20-an installation tool; 30-a power line;

100-a housing;

200-a power taking mechanism;

210-a first electricity taking assembly; 211-a first power coil; 212-first detection coil;

220-a second electricity taking assembly;

221-a second power coil; 222-a second detection coil; 223-a limiting part;

230-an elastic reset piece;

300-a non-energy-storage wire clamping mechanism;

310-wire clamp; 311-a mating portion;

320-a locking mechanism;

321-a pawl; 3211-a locking part; 3212-a trigger part;

322-ratchet wheel; 323-locking the pressure spring;

400-fault display mechanism;

410-transparent indicating housing; 420-indicating structure;

500-a housing;

510-a receiving chamber; 511-a second elastic member;

520-a scaffold; 521-touching the buckle;

600-driving the jaw; 700-a first resilient member;

800-a limit structure;

810-a limiting seat;

820-limit knob;

821-main body shaft; 822-a limiting column; 823-limiting piece; 824-a spring;

830-a limit groove;

900-disassembling the bolt;

910-a tongue; 920-bolt brackets; 921-retraction groove; 922-ejection slot;

930-bolt spring; 940-knob spindle; 941-limit pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the fault indicator and the installation tool thereof of the present invention are further described in detail by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, a fault indicator 10 according to an embodiment of the present invention includes a housing 100 and a non-energy-storing wire clamping mechanism 300. Non-charging cable clamping mechanism 300 is disposed on housing 100, and non-charging cable clamping mechanism 300 includes a cable clamp 310 and a locking mechanism 320. The wire clamp 310 is rotatably coupled to the housing 100, and the wire clamp 310 can clamp the power line 30 upon actuation of the installation tool 20. The locking mechanism 320 is provided between the housing 100 and the wire clamp 310, the locking mechanism 320 having a locking portion 3211 and a triggering portion 3212, the locking portion 3211 for locking the wire clamp 310 with respect to the housing when the wire clamp 310 clamps the power line 30. The trigger portion 3212 is engageable with the installation tool 20 to unlock the wire clamp 310 by the latching portion 3211 upon activation of the installation tool 20.

It is worth noting that the fault indicator 10 is typically, and especially in high-altitude operations, loaded onto the power line 30 by the installation tool 20, or unloaded from the power line 30 by the installation tool 20. Referring to fig. 5 to 7, an operator manually mounts the fault indicator 10 on the installation tool 20 on the ground, and then loads the fault indicator 10 on the overhead power line 30 by carrying the fault indicator 10 through the installation tool 20. Referring to fig. 10, after the operation of the fault indicator 10 is completed, the fault indicator 10 is unloaded from the power line 30 by the installation tool 20.

The non-energy-storage wire clamping mechanism 300 is compared with a conventional energy-storage wire clamping mechanism, and the non-energy-storage wire clamping mechanism 300 refers to a wire clamping mechanism which does not utilize an energy storage structure such as an elastic member to clamp the fault indicator 10 on the power line 30. In this embodiment, when the fault indicator 10 is installed on the installation tool 20, the trigger portion is applied with a small force to unlock the wire clamp 310 by the deadlocking mechanism 320, so as to open the wire clamp 310 and fix the wire clamp 310 on the installation tool 20, without overcoming a large elastic force to open the energy storage wire clamping mechanism as in the conventional fault indicator. Therefore, the fault indicator 10 is more convenient to install, simpler and labor-saving to operate and more friendly to operate. When the fault indicator 10 is unloaded, the locking of the locking mechanism 320 on the wire clamp 310 is released only by the mounting tool 20 being matched with the trigger part, so that the fault indicator 10 can be separated from the power line 30, the unloading process is simpler and more convenient, and the operation is more friendly.

Illustratively, referring to fig. 6 and 7, upon loading of the fault indicator 10 onto the power line 30 by the installation tool 20, the power line 30 is clamped by a clamp 310 carried by an elastic stored energy mechanism provided on the installation tool 20. Referring to fig. 3, for example, the installation tool 20 may include a housing 500, the housing 500 having a receiving cavity 510 receiving the fault indicator 10. The installation tool 20 also includes a trigger catch 521 for securing the wire clamp 310. The installation tool 20 further comprises a driving jaw 600 and a first elastic member 700, wherein the driving jaw 600 and the first elastic member 700 form the above-mentioned elastic energy storage mechanism for driving the wire clamp 310 to clamp the power line 30 when the wire clamp 310 is released from the fixing of the trigger buckle 521. While the power clamp 310 clamps the power line 30, the power-taking mechanism 200 of the fault indicator 10 forms a power-taking closed loop path around the power line 30, so that power-taking detection operation can be performed. Referring to fig. 5, in one embodiment, the wire clamp 310 is further provided with a fitting portion 311, the fitting portion 311 being for contact fitting with the driving jaw 600 of the installation tool 20, so that the wire clamp 310 can clamp the power line 30 by being carried by the driving jaw 600 of the installation tool 20. The mating portion 311 may be a lug disposed circumferentially outward of the wire clamp 310 that enables the wire clamp 310 to interfere with the drive dog 600 in a rotational path so that the drive dog 600 can bring the wire clamp 310 into clamping engagement with the power line 30.

Referring to fig. 8 to 10, when the fault indicator 10 is unloaded by the installation tool 20, a force may be applied to the triggering portion 3212 of the locking mechanism 320 through the sidewall of the receiving cavity 510 of the housing 500, so that the locking of the wire clamp 310 by the locking portion 3211 is released, so that the fault indicator 10 is smoothly separated from the power line 30. The specific construction of the installation tool 20, and the loading and unloading process for the fault indicator 10 will be described in detail later.

The locking mechanism 320 may be configured in a variety of ways. Referring to FIG. 2, in one embodiment, the deadlocking mechanism 320 is a ratchet deadlocking mechanism. The deadlocking mechanism 320 includes a pawl 321 and a ratchet 322. A pawl 321 is provided on one of the housing 100 and the wire clamp 310, a ratchet 322 is provided on the other of the housing 100 and the wire clamp 310 corresponding to the pawl 321, a locking portion 3211 and a triggering portion 3212 are both provided on the pawl 321, and the locking portion 3211 and the ratchet 322 cooperate to lock the wire clamp 310 when the wire clamp 310 clamps the power line 30. The trigger portion 3212 is capable of releasing the locking of the wire clamp 310 by the locking portion 3211 upon activation of the installation tool 20. In other embodiments, the locking mechanism 320 may be other structures having a locking portion and a triggering portion, as long as the locking of the wire clamp by the locking portion cooperating with the wire clamp is achieved, and the locking of the wire clamp by the locking portion is released by the triggering portion.

Illustratively, as shown in fig. 2, the locking portion 3211 and the triggering portion 3212 are respectively disposed at opposite ends of the pawl 321, a middle portion of the pawl 321 is rotatably connected to the housing 100, and the triggering portion 3212 and the locking portion 3211 move in opposite directions around the middle portion of the pawl 321. The ratchet 322 may be relatively fixedly connected to the wire clip 310, and the locking portion 3211 is configured to cooperate with the ratchet 322 to lock the ratchet 322 or release the ratchet 322. When the trigger portion 3212 moves to a preset position toward a side away from the housing 100, the locking portion 3211 locks the ratchet 322. When the trigger portion 3212 receives an external force applied toward the side of the housing 100 by the installation tool 20, the latch portion 3211 releases the ratchet 322. Further, the locking mechanism 320 further includes a locking pressure spring 323 disposed between the housing 100 and the trigger portion 3212. The locking compression spring 323 serves to provide a restoring force to the trigger 3212 away from the housing 100. The locking pressure spring 323 may be a compression spring, or may be an elastic structure such as a V-shaped elastic sheet.

In this embodiment, the locking portion 3211 of the pawl 321 is configured to cooperate with the ratchet wheel 322 to lock and release the ratchet wheel 322. The locking portion 3211 may be engaged with the ratchet wheel 322 by engaging concave and convex teeth, that is, teeth are disposed on the periphery of the ratchet wheel 322, and corresponding teeth are disposed on the surface of the locking portion 3211 opposite to the ratchet wheel 322. Alternatively, the locking portion 3211 may be engaged with the ratchet wheel 322, or may be locked by friction, that is, the outer periphery of the ratchet wheel 322 is a friction surface, and the surface of the locking portion 3211 facing the ratchet wheel 322 is also a friction surface. Under a normal state, the triggering portion 3212 of the pawl 321 is located at a preset position relatively far away from the housing 100 under the action of the locking compression spring 323, at this time, the locking portion 3211 contacts the ratchet wheel 322, and the position of the wire clamp 310 is fixed relative to the housing 100. When the wire clamp 310 needs to be opened, a certain external force is only required to be applied to the triggering portion 3212, so that the triggering portion 3212 moves a certain distance towards one side of the housing 100, and at this time, the locking portion 3211 is separated from the ratchet wheel 322, and the wire clamp 310 can be rotated freely. When the wire clamp 310 is required to clamp the power line 30, only the external force acting on the trigger portion 3212 needs to be removed, and when the trigger portion 3212 moves to a preset position toward the side away from the housing 100 under the action of the locking compression spring 323, the locking portion 3211 contacts with the ratchet wheel 322 and locks the ratchet wheel 322, so as to lock the position of the wire clamp 310 relative to the housing 100, and the wire clamp 310 is realized to clamp the power line 30. It is to be understood that the ratchet mechanism is a unidirectional intermittent movement mechanism, and the locking portion 3211 in the present embodiment locks the ratchet 322 specifically in a direction in which the wire clamp 310 clamps the power line 30, so that the wire clamp 310 cannot open by itself when clamping the power line 30.

In this embodiment, the ratchet 322 is relatively fixedly connected to the wire clip 310, which means that the ratchet 322 and the wire clip 310 cannot move and rotate relatively after the ratchet 322 is connected to the wire clip 310. And the ratchet 322 may be detachably connected to the wire clip 310 at a set position by way of shaft hole fitting. Of course, the ratchet 322 can also be directly connected to the wire clip 310 at a set position by a fixed connection manner such as welding. The middle part of the pawl 321 is rotatably connected to the housing 100, and specifically, the middle part of the pawl 321 is provided with a shaft hole, the housing 100 is provided with a shaft hole seat, and the middle part of the pawl 321 is connected with the shaft hole seat by a connecting shaft. Of course, the pawl 321 may be connected to the housing 100 by other rotatable connections.

Referring to fig. 8 and 9, when the trigger portion 3212 receives an external force applied toward the side of the housing 100 by the installation tool 20, the latch portion 3211 releases the ratchet 322. The position where the external force is applied by the installation tool 20 may be specifically an inner side wall of the receiving cavity 510 of the installation tool 20. When it is necessary to remove the fault indicator 10 from the power line 30 after the operation of the fault indicator 10 is completed, it is only necessary to align the housing 510 of the installation tool 20 with the fault indicator 10 to house the fault indicator 10. Meanwhile, in the accommodating process, the inner side wall of the accommodating cavity 510 presses the trigger portion 3212, so that the locking portion 3211 is disengaged from the ratchet 322, thereby releasing the locking of the locking mechanism 320 on the wire clamp 310, and the fault indicator 10 can be smoothly detached by the installation tool 20. Thus, the fault indicator 10 of the present embodiment is convenient to disassemble and operate, and can be used more quickly without the need for strict alignment with the wire clamping structure unlocking direction as in the conventional case. Referring to fig. 3, in one embodiment, the sidewall of the receiving cavity 510 of the housing 500 of the installation tool 20 is substantially flared near the edge of the housing 500. Thus, the operation of the installation tool 20 when receiving the fault indicator 10 is smoother.

Referring to fig. 2, as one possible implementation, the fault indicator 10 includes a power take-off mechanism 200. The power taking mechanism 200 is disposed on the housing 100, the power taking mechanism 200 includes a first power taking assembly 210 and a second power taking assembly 220, the first power taking assembly 210 is fixedly connected to the housing 100, the second power taking assembly 220 is rotatably connected to the first power taking assembly 210, and the second power taking assembly 220 has a first position opened and a second position closed relative to the first power taking assembly 210. When the second power-taking assembly 220 is located at the first position, an opening for passing through the power line 30 is formed between the first power-taking assembly 210 and the second power-taking assembly 220, and when the second power-taking assembly 220 is located at the second position, the first power-taking assembly 210 and the second power-taking assembly 220 are closed to form a power-taking closed loop path surrounding the power line 30. The wire clamp 310 is matched with the second power-taking assembly 220 and can drive the second power-taking assembly 220 to move from the second position to the first position.

As shown in fig. 5, the clip 310 is fixed by touching the buckle 210, so that the second power-taking assembly 220 is fixed at the first position, and an opening is formed between the first power-taking assembly 210 and the second power-taking assembly 220. As shown in fig. 6 and 7, when the power line 30 enters the position between the first power taking assembly 210 and the second power taking assembly 220, the power line 30 applies pressure to the fault indicator 10 to make the wire clamp 310 separate from the limitation of the trigger buckle 521, and clamp the power line 30 under the driving of the driving claw 600, and meanwhile, the second power taking assembly 220 can move to the second position, and at this time, the first power taking assembly 210, the second power taking assembly 220 and the power line 30 therebetween form a power taking loop. And the position of the wire clamp 310 can be locked by the locking mechanism 320, so that the fault indicator 10 is reliably clamped on the power line 30, and the fault indicator 10 and the power line 30 are reliably connected when power is taken. Thereby improving the stability of the wire clamping of the fault indicator 10 and ensuring the reliable operation of the fault indicator 10.

The wire clamp 310 can move the second power-taking assembly 220 in various ways. Referring to fig. 2, in an embodiment, the wire clamp 310 is provided with a hollow portion avoiding the second power-taking assembly 220, a limiting portion 223 is provided between the wire clamp 310 and the second power-taking assembly 220, and the wire clamp 310 can drive the second power-taking assembly 220 to move towards the first position through the limiting portion 223. Exemplarily, the limiting portion 223 is disposed on the second power-taking assembly 220, and the limiting portion 223 can abut and interfere with a surface of the wire clamp 310 close to the second power-taking assembly 220. When the wire clamp 310 rotates in a direction away from the first power taking assembly 210, the wire clamp 310 is firstly abutted to the limiting portion 223, and then the second power taking assembly 220 is driven to move in the direction away from the first power taking assembly 210, so that the second power taking assembly 220 moves to a first position opened relative to the first power taking assembly 210. When power is required to be taken, the driving claw 600 of the installation tool 20 drives the wire clamp 310 to clamp the power line 30, at this time, the wire clamp 310 does not interfere with the limiting portion 223, and the second power taking assembly 220 can move to the second position under the action of external force.

Further, the fault indicator 10 further includes an elastic reset member 230 disposed between the first power-taking assembly 210 and the second power-taking assembly 220. The elastic reset member 230 is used for providing a reset force to the second power-taking assembly 220 to move towards the second position. Illustratively, the elastic reset member 230 includes a torsion spring, and is sleeved on the hinge shaft connecting the first power-taking assembly 210 and the second power-taking assembly 220. One side of the torsion arm of the torsion spring is relatively and fixedly abutted against the first power taking assembly 210, and the other side of the torsion arm of the torsion spring is abutted against the second power taking assembly 220. In this embodiment, when the wire clamp 310 does not interfere with the limiting portion 223, the second power taking assembly 220 can automatically return to the second position under the action of the resetting force of the elastic resetting piece 230, so as to automatically form a stable power taking closed loop with the first power taking assembly 210, thereby improving the power taking stability of the fault indicator 10.

Referring to fig. 2, in one embodiment, the first current-taking assembly 210 includes a first current-taking coil 211 and a first detection coil 212 which are arranged in parallel, the second current-taking assembly 220 includes a second current-taking coil 221 and a second detection coil 222 which are arranged in parallel, when the second current-taking assembly 220 is at the second position, the second current-taking coil 221 and the first current-taking coil 211 are closed to form a ring, and the second detection coil 222 and the first detection coil 212 are closed to form a ring. In this embodiment, the electricity taking mechanism 200 is a dual-coil structure, the first electricity taking assembly 210 includes a semi-annular first electricity taking coil 211 and a first detection coil 212, and the second electricity taking assembly 220 includes a semi-annular second electricity taking coil 221 and a second detection coil 222. When the second current-taking assembly 220 is located at the second position, the first current-taking coil 211 and the second current-taking coil 221 are closed to form an annular current-taking coil, and the first detection coil 212 and the second detection coil 222 are closed to form an annular detection coil. Wherein, get electric coil and detection coil and can all design as CT coil. Alternatively, the pick-up coil may be designed as a CT coil and the detection coil may be designed as a rogowski coil.

Referring to fig. 2, as one practical way, the fault indicator 10 further includes a fault display mechanism 400 disposed on the housing 100. The failure display mechanism 400 is connected to the power supply mechanism 200, and indicates whether the power line 30 has a failure or not. Illustratively, the fault display mechanism 400 includes a transparent indicator housing 410 and an indicator structure 420 located inside the transparent indicator housing 410. The specific form of the indication structure 420 and the specific manner of how the fault display mechanism 400 indicates whether the power line 30 has a fault or not are well known in the art, and are not limited in the embodiment of the present invention.

Referring to fig. 3 and 4, an embodiment of the present invention further provides a fault indicator installation tool 20 for loading and unloading the fault indicator 10 according to any of the above aspects. The installation tool 20 includes a housing 500, a bracket 520, a driving jaw 600, and a first elastic member 700. The housing 500 has a receiving cavity 510 for receiving the fault indicator 10. The bracket 520 is disposed on the housing 500 at one side of the opening of the receiving chamber 510. The driving jaw 600 is rotatably provided on the bracket 520, and the driving jaw 600 has an open position distant from the opening of the housing chamber 510 and a closed position close to the opening of the housing chamber 510. The first elastic member 700 is disposed between the driving jaw 600 and the bracket 520 to provide an elastic restoring force to the driving jaw 600 to move toward the closed position. When the drive dog 600 is in the open position, the drive dog 600 clears the opening of the receiving cavity 510, and the installation tool 20 may receive the fault indicator 10. When the fault indicator 10 is mounted to the receiving cavity 510 and the driving jaw 600 is disengaged from the open position, the driving jaw 600 can move toward the closed position by the restoring force of the first elastic member 700 to bring the wire clamp 310 to clamp the power line 30. The first elastic member 700 may be a torsion spring. Further, the installation tool 20 of the fault indicator 10 further includes a trigger latch 521 rotatably connected to the bracket 520. The trigger catch 521 is used to catch the clip 310 when the fault indicator 10 is mounted to the receiving cavity 510 to maintain the clip 310 in the open state. It can be understood that the wire clamp 310 is in the open state, and correspondingly, the second power taking assembly 220 is in the first position.

The installation tool 20 of the present embodiment is used for loading and unloading the aforementioned failure indicators 10. As shown in fig. 5, before the fault indicator 10 is mounted to the mounting tool 20, the driving jaw 600 is brought into the open position so that the fault indicator 10 can be mounted into the housing 510 through the opening of the housing 510. After the fault indicator 10 is mounted in the receiving cavity 510, the clip 310 is fastened by the touch fastener 521, so that the second power-taking assembly 220 is kept at the first position. It should be noted that the installation of the fault indicator 10 into the housing 510 allows the fault indicator 10 to have a certain elastic floating movement in the housing 510. Thus, when the installation tool 20 carries the fault indicator 10 close to the power line 30, the power line 30 will squeeze the fault indicator 10, thereby unhooking the trigger catch 521 from the cleat 310. And then the driving claw 600 can move to the closed position under the action of the first elastic member 700 to drive the wire clamp 310 to clamp the power line 30, and at the same time, the second power taking assembly 220 moves to the second position to realize the power taking detection operation.

Referring to fig. 4, in one embodiment, the installation tool 20 of the fault indicator 10 further includes a second elastic member 511 installed in the housing 510, and the second elastic member 511 is used for providing an elastic force for the fault indicator 10 to be pulled out of the housing 510 when the fault indicator 10 is installed in the housing 510. The second elastic member 511 may be a coil spring. Or the second elastic element 511 may also be an elastic sheet, a belleville spring, or the like. By providing the second elastic member 511, when the fault indicator 10 is received in the receiving cavity 510, the fault indicator 10 can elastically float relative to the installation tool 20 to disengage the trigger latch 521 from the wire clamp 310 when the fault indicator 10 is loaded on the power line 30.

Referring to fig. 4, as one practical way, the installation tool 20 of the fault indicator 10 further includes a stopper structure 800 disposed between the driving jaw 600 and the bracket 520. The stop structure 800 serves to fix the position of the drive dog 600 relative to the bracket 520 when the drive dog 600 is in the open position. In this embodiment, the limiting structure 800 is mainly used to fix the position of the driving jaw 600 when the fault indicator 10 is installed in the installation tool 20, so as to prevent the driving jaw 600 from obstructing the fault indicator 10 from being received in the receiving cavity 510 through the opening. When the fault indicator 10 is loaded on the power line 30 by the installation tool 20, the driving jaw 600 is released from the limit by the limit structure 800, so that the driving jaw 600 is separated from the open position by the first elastic member 700 and has a tendency to move toward the closed position.

Referring to fig. 4, in one embodiment, the spacing structure 800 includes a spacing block 810, a spacing knob 820, and a spacing groove 830. The stopper 810 is disposed on the bracket 520. The limit knob 820 is rotatably disposed on the limit seat 810 in a penetrating manner, and one end of the limit knob 820 can extend out from the limit seat 810 or retract into the limit seat 810. The limiting groove 830 is disposed on the driving jaw 600 corresponding to the limiting knob 820, and when the driving jaw 600 is in the open position, one end of the limiting knob 820 extends outwards from the limiting seat 810 and is clamped in the limiting groove 830. Exemplarily, as shown in fig. 4, the limiting seat 810 is a hollow structure, and two opposite sidewalls thereof are both provided with through holes. One side of the limiting seat 810 is provided with a deep groove and a shallow groove respectively, wherein the deep groove and the shallow groove are relative, the deep groove refers to a groove with a deeper depth relative to the shallow groove, and the shallow groove refers to a groove with a shallower depth relative to the deep groove. The limit knob 820 comprises a main body shaft 821, a limit column 822 is arranged on the main body shaft 821, and the limit column 822 is used for being respectively clamped in a deep groove or a shallow groove. The main body shaft 821 is further provided with a spring 824 and two limiting pieces 823, one of the limiting pieces 823 is fixedly connected to the main body shaft 821, the other limiting piece 823 is movably sleeved on the main body shaft 821, and the spring 824 is located between the two limiting pieces 823. When the limit knob 820 is mounted on the limit seat 810, the two limit pieces 823 are respectively abutted against the inner sides of the two side walls of the limit seat 810 provided with the through holes, and the limit columns 822 are clamped in the deep grooves or the shallow grooves. When the knob is rotated to clamp the position-limiting post 822 in the deep groove, the end of the position-limiting knob 820 extends outwards from the position-limiting seat 810. When the knob is rotated to clamp the position-limiting columns 822 in the shallow grooves, the end of the position-limiting knob 820 retracts into the position-limiting seat 810.

In other embodiments, the spacing block 810 may be a solid structure. The spacing knob 820 may be in threaded connection with the spacing block 810. Specifically. The outer wall of the limiting knob 820 is provided with external threads, the limiting seat 810 is provided with a threaded hole, and the limiting knob 820 can be extended out and retracted back relative to the limiting seat 810 by rotating the limiting knob 820 forward and backward.

Referring to fig. 4, as an implementation manner, the installation tool 20 of the fault indicator 10 further includes a detaching latch 900 disposed on the housing 500 and located at the opening of the receiving cavity 510. The detaching latch 900 has an elastically extended state and a retracted state, and when the detaching latch 900 is in the retracted state, the detaching latch 900 escapes from the opening of the receiving cavity 510. When the detachment locking tongue 900 is in the elastically extended state, the detachment locking tongue 900 can abut against a surface of the fault indicator 10 to lock the fault indicator 10 in the receiving cavity 510. In this embodiment, the detaching latch 900 is mainly to securely fix the fault indicator 10 and the installation tool 20 when the fault indicator 10 is detached, so as to smoothly detach the fault indicator 10 from the power line 30 through the installation tool 20.

Referring to fig. 11-13, in one embodiment, the detachment latch 900 includes a latch 910, a latch bracket 920 and a latch spring 930, and a knob spindle 940. The latch bracket 920 is fixed at an opening of the receiving cavity 510 of the housing 500, and the knob spindle 940 is installed on the latch bracket 920. The locking tongue 910 is connected to one end of the knob spindle 940, and the knob spindle 940 is capable of rotating relative to the locking tongue 910, but is not movable relative to each other in the axial direction along the knob spindle 940. The spring bolt support 920 is provided with a retraction groove 921 and an ejection groove 922, a limit pin 941 is fixedly arranged on the knob spindle 940, and the limit pin 941 is used for being clamped in the retraction groove 921 or the ejection groove 922. The spring tongue 930 is sleeved on the knob spindle 940 and located between the spring tongue 910 and the limit pin 941. When the limit pin 941 is engaged with the retraction groove 921 of the latch bolt support 920, the latch bolt 910 is in a retraction state, and the latch bolt 910 can escape from the opening of the receiving cavity 510, thereby facilitating the installation of the fault indicator 10 and the installation tool 20. When the limit pin 941 is engaged with the pop-up slot 922 of the latch bracket 920, the latch 910 is in an elastically extended state, i.e., the detachable latch 900 is in an elastically extended state. Thus, when it is necessary to unload the fault indicator 10 from the power line 30, the detaching locking tongue 900 is brought into an elastically extended state. When the fault indicator 10 begins to enter the receiving cavity 510, the circumferential sidewall of the fault indicator 10 presses the latch 910, and the latch 910 elastically contracts in the latch holder 920. When the fault indicator 10 enters the receiving cavity 510 to a certain extent, the latch 910 may protrude toward the inside of the receiving cavity 510 under the action of the latch spring 930, so that the latch 910 can abut against the upper surface of the fault indicator 10, thereby locking the fault indicator 10 in the receiving cavity 510. In this way, the installation tool 20 can reliably unload the fault indicator 10 from the power line 30.

Referring to fig. 5 to 7, an embodiment of the present invention further provides a loading method of a fault indicator, including the following steps:

s100: the trouble indicator 10 is mounted in the housing chamber 510 of the mounting tool 20, and the electricity taking mechanism 200 of the trouble indicator 10 is held at the open position. It is understood that the open position of the power-taking mechanism 200 corresponds to the first position of the second power-taking assembly 220. The specific operation process of maintaining the power-taking mechanism 200 in the open position may include placing the fault indicator 10 in the receiving cavity 510 of the installation tool 20, opening the wire clamp 310 of the fault indicator 10, and hooking the touch buckle 521 of the installation tool 20 to the wire clamp 310, so that the wire clamp 310 maintains the second power-taking assembly 220 in the first position. More specifically, prior to the step of placing the malfunction indicator 10 in the receiving cavity 510 of the installation tool 20, the driving jaw 600 of the installation tool 20 is opened, and the limit knob 820 is twisted to the extended state such that the end of the limit knob 820 is caught in the limit groove 830 of the driving jaw 600, whereby the driving jaw 600 is maintained at the opened position. While twisting the release latch 900 to the retracted state. Then, as shown in fig. 5, the fault indicator 10 is placed in the receiving cavity 510 of the installation tool 20, the wire clamp 310 of the fault indicator 10 is opened, the trigger buckle 521 hooks the wire clamp 310, and the second power-taking assembly 220 is maintained at the first position. The spacing knob 242 is then rotated such that the end of the spacing knob 242 is retracted into the spacing seat 241.

S200: it is determined whether or not the power line 30 enters the opening of the power take-out mechanism 200 of the fault indicator 10.

S300: when it is determined that the power line 30 enters the opening of the power-taking mechanism 200 of the fault indicator 10, the mounting tool 20 is controlled to move toward the side of the power line 30, so that the power line 30 presses the fault indicator 10, thereby causing the wire clamp 310 of the fault indicator 10 to be out of the limit of the trigger catch 521 of the mounting tool 20 and clamping the power line 30 under the action of the driving jaw 600 of the mounting tool 20, and simultaneously the power-taking mechanism 200 of the fault indicator 10 moves to the closed position. It is understood that the closed position of the power-taking mechanism 200 corresponds to the second position of the second power-taking assembly 220.

S400: it is determined whether the wire clamp 310 of the fault indicator 10 is clamped to the power line 30. In this step, it is determined whether or not the clip 310 of the failure indicator 10 is clamped to the power line 600, and it may be determined whether or not the locking portion 3211 of the pawl 321 is locked in contact with the ratchet 322. When the locking portion 3211 is locked in contact with the ratchet 322, it can be determined that the wire clamp 310 is clamped with the power line 30.

S500: when it is determined that the wire clamp 310 of the fault indicator 10 is clamped with the power line 30, the movement of the installation tool 20 toward the side away from the power line 30 is controlled to disengage the installation tool 20 from the fault indicator 10.

According to the loading method of the fault indicator, the fault indicator can be reliably installed on the power line to collect power data through the installation tool matched with the fault indicator, and the operation is convenient. The installation tool can disengage the fault indicator when the fault indicator is securely installed on the power line. Thus, the installation tool can operate the installation of the next fault indicator, and the cost of electric power collection is greatly saved.

Referring to fig. 8 to 10, an embodiment of the present invention further provides an unloading method of a fault indicator, including the following steps:

s100: the installation tool 20 is kept in the open state, and the installation tool 20 is controlled to be close to the malfunction indicator 10. In one embodiment, the step of maintaining the installation tool 20 in the open state may include opening the drive jaw 600 of the installation tool 20 and maintaining the drive jaw 600 in the open position using the stop structure 800 of the installation tool 20. In addition, the detaching latch 900 is twisted to an elastically extended state. In one embodiment, in which the driving jaw 600 is maintained in the open position by the stopper structure 800, the stopper knob 820 may be twisted to the extended state such that the end of the stopper knob 820 is caught in the stopper groove 830 of the driving jaw 600, thereby maintaining the driving jaw 600 in the open position.

S200: it is determined whether the fault indicator 10 is aligned with the opening of the receiving cavity 510 of the installation tool 20.

S300: when it is determined that the malfunction indicator 10 is aligned with the opening of the housing 510 of the installation tool 20, the installation tool 20 is controlled to move in the direction of the malfunction indicator 10 so that the malfunction indicator 10 enters the housing 510.

S400: it is determined whether the locking mechanism 320 of the fault indicator 10 unlocks the wire clamp 310 of the fault indicator 10. In this step, it is determined whether or not the locking mechanism 320 of the failure indicator 10 releases the locking of the wire clip 310 of the failure indicator 10, and it may be determined whether or not the locking portion 3211 of the pawl 321 is out of contact with the ratchet 322. When the lock portion 3211 is out of contact with the ratchet 322, it is determined that the locking mechanism 320 has released the lock of the wire clamp 310.

S500: when it is determined that the locking mechanism 320 of the fault indicator 10 has released the locking of the wire clamp 310 of the fault indicator 10, it is determined whether the detaching locking tongue 900 of the installation tool 20 is ejected and abuts on the surface of the fault indicator 10.

S600: when it is determined that the detachment lock tongue 900 of the installation tool 20 is ejected and abuts on the surface of the fault indicator 10, the installation tool 20 is controlled to move in a direction away from the power line 30 so that the fault indicator 10 is detached from the power line 30 together with the installation tool 20.

According to the method for disassembling the fault indicator, the mounting tool is matched with the fault indicator, so that the fault indicator can be smoothly disassembled from the power line, the operation is convenient, and the safe recovery of the fault indicator is facilitated.

The loading and unloading process of the fault indicator 10 according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In a first step, the installation tool 20 is opened when it is desired to load the fault indicator 10 onto the power line 30. As shown in fig. 5, the driving jaw 600 of the installation tool 20 is first opened, and the spacing knob 820 is twisted to an extended state such that the end of the spacing knob 820 is caught in the spacing groove 830 of the driving jaw 600, so that the driving jaw 600 is maintained at the opened position. While twisting the release latch 900 to the retracted state.

Second, the fault indicator 10 is mounted to the installation tool 20. As shown in fig. 5, the fault indicator 10 is placed in the receiving cavity 510 of the installation tool 20, the wire clamp 310 of the fault indicator 10 is opened, and the wire clamp 310 drives the second power-taking assembly 220 to move toward the first position. The touch fastener 521 of the installation tool 20 hooks the wire clamp 310, and the wire clamp 310 and the second power-taking assembly 220 are both in an open state. The spacing knob 820 is then rotated such that the end of the spacing knob 820 retracts into the spacing block 810. At this time, the fault indicator 10 tends to move upward by the elastic force of the second elastic member 511 of the installation tool 20, the driving claw 600 tends to push the wire clamp 310 to move toward the first power-taking assembly 210 by the elastic restoring force of the first elastic member 700, and the latch 521 is triggered to hook the wire clamp 310, so that the wire clamp 310 cannot move toward the first power-taking assembly 210. Finally, the fault indicator 10 can be fixed in the receiving cavity 510 of the installation tool 20, and the second power taking assembly 220 can be maintained at the first position.

Third, the fault indicator 10 is loaded onto the power line 30. As shown in fig. 6, the fault indicator 10 and the installation tool 20 are aligned with the power line 30, specifically, the opening between the first power take-off assembly 210 and the second power take-off assembly 220 is aligned with the power line 30. After the power line 30 enters the position between the first power-taking assembly 210 and the second power-taking assembly 220, the installation tool 20 is lifted up, so that the power line 30 presses the fault indicator 10, at this time, the second elastic member 511 in the accommodating cavity 510 is compressed, then the fault indicator 10 moves down integrally, and then the wire clamp 310 is separated from the touch buckle 521 of the installation tool 20. Next, the driving claw 600 drives the wire clamp 310 to move towards one side of the first power-taking assembly 210 under the action of the first elastic member 700, and simultaneously the second power-taking assembly 220 moves towards the second position under the action of the elastic resetting member 230, so that the power line 30, the first power-taking assembly 210 and the second power-taking assembly 220 form a power-taking closed loop. Meanwhile, the pawl 321 locks the ratchet 322 by the locking pressure spring 323, so that the position of the wire clamp 310 is locked, and the wire clamp 310 can reliably clamp the power line 30.

Fourth, the installation tool 20 is disengaged from the fault indicator 10. As shown in fig. 7, after the wire clamp 310 of the fault indicator 10 clamps the power line 30, the installation tool 20 is pulled downward, and at this time, the driving jaw 600 is rotated by the opposite action of the power line 30. So that the installation tool 20 can be disengaged from the fault indicator 10. While the fault indicator 10 remains on the power line 30 and the fault detection operation can begin.

In the first step, the installation tool 20 is opened when it is desired to unload the fault indicator 10 from the power line 30. The drive jaws 600 of the installation tool 20 are opened and the limit knob 820 is twisted to an extended state such that the end of the limit knob 820 is caught in the limit groove 830 of the drive jaws 600, and thus the drive jaws 600 are maintained at the opened position. While twisting the detaching latch tongue 900 to an elastically extended state.

Second, the installation tool 20 receives the fault indicator 10. As shown in fig. 8, the installation tool 20 in the open state is lifted upward to align the opening of the receiving cavity 510 with the malfunction indicator 10. In the housing process, the side wall of the housing cavity 510 of the installation tool 20 presses the trigger portion 3212 of the pawl 321 to disengage the locking portion 3211 of the pawl 321 from the ratchet wheel 322, thereby releasing the wire clamp 310, canceling the dead lock state of the wire clamp 310 and the power line 30, and completing the disengagement between the fault indicator 10 and the power line 30. Continuing to lift the installation tool 20 upward, the removal latch 900 successfully locks the fault indicator 10 to the installation tool 20 when the removal latch 900 automatically pops up and abuts the upper surface of the fault indicator 10.

Third, the fault indicator 10 is removed from the power line 30. As shown in fig. 9 and 10, the detaching latch 900 of the installation tool 20 connects the malfunction indicator 10 and the installation tool 20 together, and the installation tool 20 is pulled down, so that the malfunction indicator 10 is moved downward. Meanwhile, under the action of the power line 30, the wire clamp 310 drives the second power-taking assembly 220 to rotate, and when the opening angle between the wire clamp 310 and the second power-taking assembly 220 reaches a certain degree, the fault indicator 10 can be smoothly separated from the power line 30.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (16)

1. A fault indicator, comprising:

a housing (100); and

a non-energy-storage wire clamping mechanism (300) arranged on the shell (100), wherein the non-energy-storage wire clamping mechanism (300) comprises a wire clamp (310) and a locking mechanism (320), the wire clamp (310) is rotatably connected to the housing (100), the wire clamp (310) is capable of clamping an electric power line (30) upon actuation of an installation tool (20), the locking mechanism (320) is arranged between the housing (100) and the wire clamp (310), the locking mechanism (320) is provided with a locking part (3211) and a triggering part (3212), the locking portion (3211) for locking the wire clamp (310) relative to the housing (100) when the wire clamp (310) clamps an electric power line (30), the trigger portion (3212) being cooperable with an installation tool (20), to unlock the wire clamp (310) from the locking portion (3211) upon activation of an installation tool (20).

2. The fault indicator of claim 1, wherein the deadlocking mechanism (320) is a ratchet deadlocking mechanism, the deadlocking mechanism (320) includes a pawl (321) and a ratchet (322), the pawl (321) being disposed on one of the housing (100) and the wire clamp (310), the ratchet wheel (322) is provided on the other of the housing (100) and the wire clip (310) corresponding to the pawl (321), the locking part (3211) and the trigger part (3212) are both provided on the pawl (321), the locking portion (3211) and the ratchet (322) cooperate to lock the wire clamp (310) when the wire clamp (310) clamps an electrical power line (30), the trigger portion (3212) is configured to unlock the wire clamp (310) from the locking portion (3211) upon activation of an installation tool (20).

3. The fault indicator of claim 2, characterized in that the latch portion (3211) and the trigger portion (3212) are respectively disposed at opposite ends of the pawl (321), a middle portion of the pawl (321) is rotatably coupled to the housing (100), and the trigger portion (3212) and the latch portion (3211) move in opposite directions to each other around the middle portion of the pawl (321);

the ratchet wheel (322) can be fixedly connected to the wire clamp (310) relatively, the locking portion (3211) is used for being matched with the ratchet wheel (322) to lock the ratchet wheel (322) or release the ratchet wheel (322), when the trigger portion (3212) moves to a preset position towards one side far away from the shell (100), the locking portion (3211) locks the ratchet wheel (322), and when the trigger portion (3212) is subjected to an external force applied by an installation tool (20) towards one side of the shell (100), the locking portion (3211) releases the ratchet wheel (322).

4. The fault indicator of claim 3, characterized in that the deadlocking mechanism (320) further comprises a locking compression spring (323) disposed between the housing (100) and the trigger portion (3212), the locking compression spring (323) being configured to provide a reset force to the trigger portion (3212) away from the housing (100).

5. The fault indicator according to any one of claims 1 to 4, further comprising a power taking mechanism (200) disposed on the housing (100), wherein the power taking mechanism (200) comprises a first power taking assembly (210) and a second power taking assembly (220), the first power taking assembly (210) is fixedly connected to the housing (100), the second power taking assembly (220) is rotatably connected to the first power taking assembly (210), the second power taking assembly (220) has a first position opened and a second position closed relative to the first power taking assembly (210), when the second power taking assembly (220) is in the first position, an opening for passing through a power line (30) is formed between the first power taking assembly (210) and the second power taking assembly (220), when the second power taking assembly (220) is in the second position, the first electricity taking assembly (210) and the second electricity taking assembly (220) are closed to form an electricity taking closed loop passage surrounding a power line (30), and the wire clamp (310) is matched with the second electricity taking assembly (220) and can drive the second electricity taking assembly (220) to move from a second position to a first position.

6. The fault indicator according to claim 5, characterized in that the wire clamp (310) is provided with a hollow part for avoiding the second power-taking assembly (220), a limiting part (223) is arranged between the wire clamp (310) and the second power-taking assembly (220), and the wire clamp (310) can drive the second power-taking assembly (220) to move towards the first position through the limiting part (223).

7. The fault indicator of claim 5, further comprising an elastic reset member (230) disposed between the first power-taking assembly (210) and the second power-taking assembly (220), the elastic reset member (230) being configured to provide a reset force to the second power-taking assembly (220) to move toward the second position.

8. The fault indicator of claim 7, characterized in that the elastic reset member (230) comprises a torsion spring, and is sleeved on an articulated shaft connecting the first power-taking assembly (210) and the second power-taking assembly (220), wherein a torsion arm at one side of the torsion spring is relatively fixedly abutted on the first power-taking assembly (210), and a torsion arm at the other side of the torsion spring is abutted on the second power-taking assembly (220).

9. The fault indicator according to claim 5, further comprising a fault display mechanism (400) disposed on the housing (100), wherein the fault display mechanism (400) is connected to the power taking mechanism (200) for indicating whether a line of the power line (30) is faulty or not.

10. The fault indicator of any one of claims 1 to 4, characterized in that the clamp (310) is further provided with an engagement portion (311), the engagement portion (311) being adapted to be in contact engagement with the driving jaw (600) of the installation tool (20) so that the clamp (310) can grip the power line (30) with the driving jaw (600) of the installation tool.

11. A fault indicator installation tool for loading and unloading a fault indicator (10) according to any one of claims 1-10, comprising:

a housing (500) having a housing cavity (510) for housing the fault indicator (10);

a bracket (520) disposed on the housing (500) and located at one side of an opening of the receiving cavity (510);

a driving jaw (600) rotatably provided on the bracket (520), the driving jaw (600) having an open position distant from the opening of the receiving chamber (510) and a closed position close to the opening of the receiving chamber (510); and

the first elastic piece (700) is arranged between the driving clamping jaw (600) and the support (520) and used for providing elastic restoring force moving towards the closed position for the driving clamping jaw (600), when the driving clamping jaw (600) is located at the open position, the driving clamping jaw (600) avoids the opening of the accommodating cavity (510), and when a fault indicator (10) is installed in the accommodating cavity (510) and the driving clamping jaw (600) is separated from the open position, the driving clamping jaw (600) can move towards the closed position under the action of the restoring force of the first elastic piece (700) so as to drive the wire clamp (310) to clamp the power line (30).

12. The fault indicator installation tool according to claim 11, further comprising a trigger catch (521) rotatably connected to the bracket (520), wherein the trigger catch (521) is used for catching the wire clamp (310) when the fault indicator (10) is installed in the receiving cavity (510) to keep the wire clamp (310) in an open state.

13. The mounting tool of the fault indicator according to claim 11, further comprising a second elastic member (511) mounted in the housing (510), wherein the second elastic member (511) is used for providing an elastic force for the fault indicator (10) to be pulled out of the housing (510) when the fault indicator (10) is mounted in the housing (510).

14. The mounting tool of a fault indicator according to claim 11, further comprising a stop structure (800) disposed between the drive jaw (600) and the bracket (520), the stop structure (800) being configured to positionally fix the drive jaw (600) relative to the bracket (520) when the drive jaw (600) is in the open position.

15. The fault indicator installation tool according to claim 14, wherein the limiting structure (800) comprises: a stopper seat (810) provided on the bracket (520);

the limiting knob (820) is rotatably arranged on the limiting seat (810) in a penetrating mode, and one end of the limiting knob (820) can extend out of the limiting seat (810) or retract into the limiting seat (810); and

and the limiting groove (830) is arranged on the driving clamping jaw (600) corresponding to the limiting knob (820), and when the driving clamping jaw (600) is in an opening position, one end of the limiting knob (820) extends outwards from the limiting seat (810) and is clamped in the limiting groove (830).

16. The installation tool of the fault indicator according to claim 11, further comprising a detaching latch (900) disposed on the housing (500) and located at the opening of the receiving cavity (510), wherein the detaching latch (900) has an elastic extending state and a retracting state, when the detaching latch (900) is in the retracting state, the detaching latch (900) is out of the opening of the receiving cavity (510), and when the detaching latch (900) is in the elastic extending state, the detaching latch (900) can abut against the surface of the fault indicator (10) to lock the fault indicator (10) in the receiving cavity (510).

Images