CN211528578U - Power transmission line fault detection device - Google Patents

Abstract

The utility model relates to a power transmission line fault detection device, it includes the clip-on ammeter casing, the clip-on ammeter casing is connected with the vice of opening and shutting, clip-on ammeter casing lateral wall is provided with control the operating switch who opens and shuts of keeping silent, clip-on ammeter casing dustcoat is equipped with the protecting crust, the protecting crust is including the first casing and the second casing of mutual concatenation, first casing with be provided with latch device between the second casing, clip-on ammeter casing orientation one side threaded connection of keeping silent has the fixed plate, the fixed plate with first casing reaches the second casing is all articulated. The utility model discloses a be equipped with the protective housing at the shell dustcoat, have display screen and the button that sets up on the protection clip-on ammeter shell, do not influence the effect of clip-on ammeter normal use simultaneously.

Description

Power transmission line fault detection device

Technical Field

The utility model belongs to the technical field of the electric power detecting instrument technique and specifically relates to a power transmission line fault detection device is related to.

Background

The transmission line is a line which is used by a power plant to transmit electric energy to a power load center and is mutually communicated with the load center, has large transmission capacity, long transmission distance and high line voltage level, and is a backbone network frame of a power network. When a power transmission line breaks down, an ammeter is needed to be used for checking a fault point, the ammeter which is common in the market at present and convenient to use is a clip-on ammeter, the ammeter can be connected to measure without cutting off and shutting down a circuit, and the method is convenient and fast.

Chinese utility model patent with grant bulletin number CN208795776U discloses a pincerlike meter calliper, including hollow calliper shell and the mobile elastic clamping mechanism who sets up in the calliper shell, elastic clamping mechanism is including dividing two claws of locating both sides, calliper shell upper end is formed with two exports that can supply two claws to stretch out, every claw is including a plurality of clamp blocks that connect gradually, connect through elastic bearing between the adjacent clamp block, elastic bearing forms the elasticity of inside side shrink, be formed with the cavity trough in the middle of the clamp block, be provided with the magnet that can mutual actuation and the conductive contact that can mutually support the connection on the terminal clamp block respectively, two wires pass the trough of two claws respectively and the conductive contact conductive connection on the terminal clamp block, the pincerlike meter is connected to two wire lower extremes, the terminal clamp block cooperation of two claws is connected and is constituted closed circuit, and place the cable clamp in between them.

The above prior art solutions have the following drawbacks: when a user carries and uses the digital clamp-on meter, the display screen, the keys and the like arranged on the surface of the shell are easy to damage the keys and the screen, and further the service life of the digital clamp-on meter is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power transmission line fault detection device, through being equipped with the protective housing at the shell dustcoat, have display screen and the button that sets up on the protection clip-on ammeter shell, do not influence the effect of clip-on ammeter normal use simultaneously.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a power transmission line fault detection device, includes the clip-on ammeter casing, the clip-on ammeter casing is connected with the vice jaw that can open and shut, clip-on ammeter casing lateral wall is provided with the control the operating switch that the vice jaw opened and shut, clip-on ammeter casing dustcoat is equipped with the protecting crust, the protecting crust is including the first casing and the second casing of mutual concatenation, first casing with be provided with latch device between the second casing, the clip-on ammeter casing orientation one side threaded connection of keeping silent has the fixed plate, the fixed plate with first casing reaches the second casing is all articulated.

By adopting the technical scheme, the first shell and the second shell which are spliced with each other are arranged on the outer cover of the shell of the clamp-on ammeter, the first shell and the second shell are hinged with the fixing plate and are fixed by the clamping device, so that the shell of the clamp-on ammeter is covered in the shell, a display screen, keys and the like arranged on the surface of the shell of the clamp-on ammeter are protected, the damage of the outside to the display screen, the keys and the like is reduced, and the service life of the shell of the clamp-on ammeter is prolonged; in addition, the clamping device is convenient to connect and separate the first shell and the second shell, so that when the normal use of the clamp-on ammeter shell is guaranteed, the first shell and the second shell can be conveniently mounted and dismounted, and the use is convenient and fast.

The utility model discloses further set up to: the clamping device comprises a clamping hook fixedly connected with the first shell, a clamping groove matched with the clamping hook is formed in the second shell, the clamping groove is internally corresponding to the clamping hook, a clamping hook position is provided with a clamping piece matched with a clamping hook opening back side inclined plane, a first spring is arranged between the clamping piece and the clamping groove, and the clamping piece is connected with a releasing device.

By adopting the technical scheme, the clamping between the first shell and the second shell is realized by matching the clamping hook and the clamping piece, the clamping piece is connected with the first spring, so that the clamping hook can enter the clamping groove by extruding the first spring to shrink the clamping hook in the process that the clamping hook enters the clamping groove where the clamping piece is located, and the clamping piece limits the clamping hook under the restoring force action of the first spring after the clamping hook completely enters the clamping groove, so that the connection between the first shell and the second shell is realized; the arrangement of the unfreezing device is convenient for the first shell to be separated from the second shell, so that the clip-on ammeter can be normally used.

The utility model discloses further set up to: the first spring endotheca is equipped with the telescopic link, telescopic link one end with draw-in groove inner wall is perpendicular and fixed connection, the other end with joint spare fixed connection.

Through adopting above-mentioned technical scheme, the setting of telescopic link can lead to the flexible process of first spring, avoids the pothook to get into the flexible direction change of first spring that leads to too big of draw-in groove in-process exogenic force, and then influences the spacing effect of joint spare to the pothook to improve the stability of pothook and joint spare connected process.

The utility model discloses further set up to: the unfreezing device comprises a limiting plate arranged at the periphery of the telescopic rod and perpendicular to the limiting plate, a reset ring arranged between the joint pieces and the limiting plate and annularly arranged at the periphery of the first spring, one end of the first spring is fixedly connected with the joint pieces, the other end of the first spring faces towards the limiting plate, one side of the joint pieces is fixedly connected with the limiting plate, the diameter of the reset ring is smaller than that of the limiting plate, the reset ring is fixedly connected with a connecting rod perpendicular to the telescopic direction of the telescopic rod, and the connecting rod penetrates through the side wall of the clamping groove and is connected with a reset handle.

By adopting the technical scheme, the releasing device is provided with the reset ring which is sleeved on the periphery of the first spring and has the diameter smaller than that of the limiting plate, and the reset ring is fixedly connected with the reset handle positioned on the outer surface of the second shell through the connecting rod, so that the reset handle is pulled to drive the reset ring to move, when the reset ring moves to the position of the limiting plate, the limiting plate is driven to move, namely the telescopic rod is driven to contract, the clamping piece moves along with the reset ring to release the limiting state of the clamping hook, and the first shell and the second shell are separated; the reset ring is arranged between the clamping piece and the limiting plate, so that the clamping process of the clamping hook and the clamping piece is not influenced, and the limiting plate can be driven to move together when the reset ring moves, and the unlocking effect is realized.

The utility model discloses further set up to: the handle fixedly connected with slider resets, the second casing is provided with and holds the spout of slider, the spout with the telescopic link direction of stretching out and drawing back is parallel.

Through adopting above-mentioned technical scheme, the setting up of slider and spout can strengthen the restriction to the handle motion route that resets, makes it only remove along the flexible direction of telescopic link to drive the ring that resets and remove towards the limiting plate when realizing that the pulling resets the handle and removes, drive the telescopic link shrink and then realize the unfreezing effect.

The utility model discloses further set up to: the sliding block is connected with elastic clamping teeth parallel to the outer wall of the second shell, and the side wall of the sliding groove is provided with a rack meshed with the elastic clamping teeth.

Through adopting above-mentioned technical scheme, the meshing of elasticity latch and the rack that sets up and spout the lateral wall for the pulling resets the handle and removes the in-process, and arbitrary position all can remain stable state, need not stimulate the handle that resets always when carrying out the operation of unfreezing and makes first casing and second casing separation, can also guarantee simultaneously that the ring that resets is located first spring periphery all the time, does not influence the normal flexible of first spring.

The utility model discloses further set up to: the first shell and the second shell are provided with hooks at the periphery.

By adopting the technical scheme, the hook is arranged to hang the separated first shell and the second shell on the high-voltage cable when the hook is beneficial to high-altitude operation, so that the stability of the clamp-on ammeter in the use process is improved, and the possibility of falling objects is reduced.

The utility model discloses further set up to: one side of the first shell and one side of the second shell, which deviates from the jaw, are set to be arc-shaped.

Through adopting above-mentioned technical scheme, rotate along its pin joint with the fixed plate in first casing and the second casing separation process, the arc setting can prevent that first casing and second casing rotation in-process from taking place the striking extrusion with the pincerlike ampere meter casing of inside, can reduce the volume of first casing and second casing simultaneously, and then alleviates the dead weight, portable use when protecting the pincerlike ampere meter casing.

To sum up, the utility model discloses a beneficial technological effect does:

1. the protection of the shell of the pincer-shaped ammeter is realized by arranging a fixed plate fixedly connected with the shell of the pincer-shaped ammeter and a first shell and a second shell which are hinged with the fixed plate and spliced and cover the shell of the pincer-shaped ammeter;

2. the first shell and the second shell are clamped through the clamping hook and the clamping piece connected with the first spring, the structure is simple, the connection is convenient, and the releasing device is arranged for facilitating the detachment;

3. the elastic clamping teeth arranged in the unlocking device are matched with the rack, so that the reset handle can be stopped at any time in the moving process and can be kept in a stable clamping state.

Drawings

Fig. 1 is the utility model provides a power transmission line fault detection device overall structure sketch map.

Fig. 2 is a specific schematic structural diagram of an open state of a protective shell in a power transmission line fault detection device provided by the present invention.

Fig. 3 is an explosion diagram of a clamping device and an unlocking device of the power transmission line fault detection device provided by the present invention.

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3 to show a specific connection structure of the engaging device and the disengaging device.

Fig. 5 is a partially enlarged view of a portion B of fig. 4 to show a specific coupling structure of a rack position.

In the figure, 1, a clamp-on ammeter shell; 2. a jaw; 3. an operating switch; 4. a protective shell; 41. a first housing; 42. a second housing; 43. a clamping device; 431. a hook; 432. a card slot; 433. a clamping piece; 434. a first spring; 435. a telescopic rod; 44. a fixing plate; 5. a jam releasing device; 51. a limiting plate; 52. a reset ring; 53. a connecting rod; 54. resetting the handle; 55. a slider; 56. a chute; 57. elastic latch; 58. a rack; 6. and (4) hanging hooks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a power transmission line fault detection device, including pincerlike ammeter casing 1, pincerlike ammeter casing 1 is connected with 2 of keeping silent that can open and shut, and 1 lateral wall of pincerlike ammeter casing is provided with the operating switch 3 that control 2 of keeping silent opened and shut. In order to protect the display screen, the keys and the like arranged on the surface of the shell 1 of the pincer-shaped ammeter and reduce the damage of the outside to the display screen, the keys and the like, thereby prolonging the service life of the pincer-shaped ammeter, a protective shell 4 is arranged outside the shell 1 of the pincer-shaped ammeter, and the protective shell 4 comprises a first shell 41 and a second shell 42 which are spliced with each other. In order to connect the protection shell 4 and the pincerlike ammeter shell 1, a fixing plate 44 is connected to one side, facing the jaw 2, of the pincerlike ammeter shell 1 in a threaded manner, meanwhile, the fixing plate 44 is hinged to the first shell 41 and the second shell 42, one sides, facing away from the jaw 2, of the first shell 41 and the second shell 42 are arc-shaped, a clamping device 43 is arranged between the first shell 41 and the second shell 42 for buckling, and therefore the first shell 41 and the second shell 42 can be opened through rotation around a hinge point between the first shell 41 and the fixing plate 44. The periphery of the first shell 41 and the second shell 42 is provided with the hook 6, so that the first shell 41 and the second shell 42 can be conveniently hung on a power transmission line when the clamp-type ammeter is separated and normally used, and the stability in the using process is improved.

As shown in fig. 3 and fig. 4, the locking device 43 includes a hook 431 fixedly connected to the first housing 41, a locking groove 432 disposed in the second housing 42 and matched with the hook 431, a locking member 433 matched with a hook opening of the hook 431 and an inclined surface of the hook 431 is disposed in the locking groove 432 corresponding to the hook 431, a first spring 434 is disposed between the locking member 433 and the locking groove 432, the hook 431 enters the locking groove 432 where the locking member 433 is located, and the first spring 434 is squeezed to contract the locking member 431 so that the locking member 431 can enter the locking groove 432, and after the hook 431 completely enters the locking groove 432, the locking member 433 limits the hook 431 under the restoring force of the first spring 434, thereby achieving the connection between the first housing 41 and the second housing 42. The telescopic link 435 is equipped with to the cover in the first spring 434, and telescopic link 435 one end and the perpendicular and fixed connection of draw-in groove 432 inner wall, the other end and joint spare 433 fixed connection, telescopic link 435 have carried out the restriction to the flexible direction of first spring 434 to the stability of pothook 431 with joint spare 433 joint process has been strengthened.

In order to realize the separation of pothook 431 and joint spare 433, joint spare 433 is connected with unfreezing device 5, combine shown in fig. 3 and fig. 5, unfreezing device 5 is including setting up in telescopic link 435 periphery and rather than vertically limiting plate 51, set up between joint spare 433 and limiting plate 51 and encircle the reset ring 52 of locating first spring 434 periphery, first spring 434 one end and joint spare 433 fixed connection, the other end and limiting plate 51 are towards joint spare 433 one side fixed connection, reset ring 52 diameter is less than limiting plate 51 diameter, and reset ring 52 fixed connection has and telescopic link 435 direction vertically connecting rod 53, connecting rod 53 passes the draw-in groove 432 lateral wall and is connected with reset handle 54. Reset handle 54 fixedly connected with slider 55, second casing 42 is provided with the spout 56 that holds slider 55, spout 56 is parallel with the flexible direction of telescopic link 435, slider 55 is connected with the elasticity latch 57 parallel with second casing 42 outer wall, the spout 56 lateral wall is provided with the rack 58 with elasticity latch 57 meshing, thereby move the process to reset handle 54 and fix a position, make pulling reset handle 54 move the in-process, arbitrary position all can remain stable state, do not need to stimulate reset handle 54 always when carrying out the operation of unfreezing and make first casing 41 and second casing 42 separate, can also guarantee simultaneously that reset ring 52 overlaps all the time and locate first spring 434 periphery, do not influence the normal flexible of first spring 434.

The implementation principle of the embodiment is as follows: when the first housing 41 and the second housing 42 are buckled to cover the clamp-type ammeter, the hook 431 connected to the first housing 41 moves towards the clamping groove 432 provided in the second housing 42, and the first spring 434 is extruded to contract the hook 431 so that the hook 431 can enter the clamping groove 432, and the clamping piece 433 is enabled to limit the hook 431 under the restoring force action of the first spring 434 after the hook 431 completely enters the clamping groove 432, so that the connection between the first housing 41 and the second housing 42 is realized. When the first shell 41 and the second shell 42 need to be separated, the reset handle 54 is pulled to drive the sliding block 55 to move in the sliding groove 56, and meanwhile, the elastic latch 57 is matched with the rack 58 arranged on the side wall of the sliding groove 56 to realize positioning, so that the connecting rod 53 drives the reset ring 52 to move, and when the elastic latch 57 moves to the position of the limiting plate 51, the limiting plate 51 is driven to move, namely the telescopic rod 435 is driven to contract, so that the clamping piece 433 moves along with the elastic latch to release the limiting state of the clamping hook 431, and the first shell 41 and the second shell 42 are separated; reset ring 52 sets up between joint spare 433 and limiting plate 51, when guaranteeing not to influence the joint process of pothook 431 and joint spare 433, has still guaranteed that reset ring 52 can drive limiting plate 51 and remove together when removing, and then realizes the effect of unfreezing.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a power transmission line fault detection device, includes pincerlike ammeter casing (1), pincerlike ammeter casing (1) is connected with keep silent (2) that can open and shut, pincerlike ammeter casing (1) lateral wall is provided with control keep silent operating switch (3) that (2) opened and shut, its characterized in that: the clamp-on ammeter shell (1) dustcoat is equipped with protecting crust (4), protecting crust (4) are including first casing (41) and second casing (42) of splicing each other, first casing (41) with be provided with latch device (43) between second casing (42), clamp-on ammeter shell (1) orientation keep silent (2) one side threaded connection has fixed plate (44), fixed plate (44) with first casing (41) reach second casing (42) are all articulated.

2. A power transmission line fault detection device according to claim 1, characterized in that: clamping device (43) include with pothook (431) of first casing (41) fixed connection, set up in second casing (42) and with pothook (431) complex draw-in groove (432), correspond in draw-in groove (432) pothook (431) position be provided with pothook (431) hook mouth looks dorsal side inclined plane complex joint spare (433), joint spare (433) with be provided with first spring (434) between draw-in groove (432), joint spare (433) are connected with unfreezing device (5).

3. A power transmission line fault detection device according to claim 2, characterized in that: the telescopic rod (435) is arranged in the first spring (434) in a sleeved mode, one end of the telescopic rod (435) is perpendicular to the inner wall of the clamping groove (432) and is fixedly connected with the inner wall of the clamping groove, and the other end of the telescopic rod is fixedly connected with the clamping piece (433).

4. A power transmission line fault detection device according to claim 3, characterized in that: unfreezing device (5) including set up in telescopic link (435) periphery and rather than vertically limiting plate (51), set up in joint spare (433) with between limiting plate (51) and the ring locate reset ring (52) of first spring (434) periphery, first spring (434) one end with joint spare (433) fixed connection, the other end with limiting plate (51) orientation joint spare (433) one side fixed connection, reset ring (52) diameter is less than limiting plate (51) diameter, just reset ring (52) fixedly connected with telescopic link (435) flexible direction vertically connecting rod (53), connecting rod (53) pass draw-in groove (432) lateral wall is connected with and resets handle (54).

5. A power transmission line fault detection device according to claim 4, characterized in that: the reset handle (54) is fixedly connected with a sliding block (55), the second shell (42) is provided with a sliding groove (56) for accommodating the sliding block (55), and the sliding groove (56) is parallel to the telescopic direction of the telescopic rod (435).

6. A power transmission line fault detection device according to claim 5, characterized in that: the sliding block (55) is connected with an elastic clamping tooth (57) parallel to the outer wall of the second shell (42), and a rack (58) meshed with the elastic clamping tooth (57) is arranged on the side wall of the sliding groove (56).

7. A power transmission line fault detection device according to claim 1, characterized in that: the periphery of the first shell (41) and the periphery of the second shell (42) are both provided with hooks (6).

8. A power transmission line fault detection device according to claim 1, characterized in that: the first shell (41) and the second shell (42) are arranged in an arc shape on the side departing from the jaw (2).

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