CN203616427U - A fault locating monitor preventing expansion cracking - Google Patents

Abstract

The utility model discloses a fault location monitor for preventing expansion and cracking, which comprises a monitor body and a clasp fixedly connected to the monitor body, and also includes at least one position-limiting component, and the position-limiting component includes a position-limiting Rod, a spring and an annular fastener, the snap ring is provided with at least one installation hole, the limit rod passes through the installation hole and slides the snap ring and has an outer part located outside the snap ring and an outer part located inside the snap ring The inner part of the limit rod is located at the inner end of the snap ring, and a protruding ring is fixed. A space for installing a cable is formed between the protruding ring and the monitor body, and the protruding ring is against the cable. The spring slides on the limit rod and the two ends of the spring abut against the inner surface of the protruding ring and the snap ring. The ring fastener is located outside the snap ring and locked on the outer part of the limit rod. It has the following advantages: Prevent the snap ring from bursting and have a good clamping effect.

Description

A Fault Location Monitor for Preventing Burst

technical field

The utility model relates to a fault location monitor for preventing swelling and cracking.

Background technique

The power grid often fails during the power transmission process. In order to find the fault point in time and eliminate the fault, the power department organizes special staff responsible for inspections to manually search for the fault point after the line fails. However, the power distribution network has complex lines and many branches, and manual search is very troublesome, and the search efficiency is low and time-consuming.

At present, in order to quickly find the fault point and solve the above technical problems, some intelligent wireless monitors for power distribution lines have appeared. Referring to Fig. 1, the intelligent wireless detector for power distribution lines includes a monitor body 1, a screw 3, and a snap ring 2 for clamping cables, and the snap ring is screwed and fixed on the monitor body 1 by a nut 4 On the top of the snap ring 2 facing the top of the monitor body, there is a screw hole, and one end of the screw 3 is screwed through the screw hole on the top of the snap ring 2 and pressed against the cable 5, so as to fix the monitor body On the cable, the movement of the cable in the up-and-down direction is prevented by the abutment of the screw rod. But there are the following disadvantages: the cable is exposed to the sun for a long time, and it is prone to volume expansion due to temperature rise, while the positioning position of the screw is fixed, and it is easy to cause the snap ring to burst due to the volume expansion of the cable.

Utility model content

The utility model provides a fault location monitor for preventing expansion and cracking, which overcomes the disadvantage of easy expansion and cracking snap rings in the background technology.

The technical solution adopted by the utility model to solve its technical problems is:

A fault location monitor for preventing expansion, which includes a monitor body and a snap ring affixed to the monitor body, and also includes at least one limit assembly, which includes a limit rod, a spring and An annular fastener, the snap ring is provided with at least one installation hole, the limit rod passes through the installation hole and slides on the snap ring and has an outer part located outside the snap ring and an inner part located inside the snap ring, the A protruding ring is fixed at the inner end of the limit rod on the inner side of the clasp, and a space for connecting cables is formed between the protruding ring and the monitor body, and the protruding ring is pressed against the cable, and the spring slides against the cable. The limit rod and the two ends of the spring are against the inner surface of the protruding ring and the snap ring, and the ring fastener is located outside the snap ring and locked on the outer part of the limit rod.

In one embodiment: a suction cup is further included, the suction cup is fixedly connected to the bottom surface of the convex ring, and can suck the cable.

In one embodiment: the diameter of the outer ring surface of the annular fastener is larger than the diameter of the installation hole.

In one embodiment: the number of the limiting components is one set, the snap ring has a top facing the monitor body, and the limiting component is attached to the top of the snap ring.

In one embodiment: the number of the mounting holes is at least three, the number of the limit components is three groups, the snap ring has a top facing the monitor body and left and right parts respectively located on the left and right sides of the top , the limit assembly is mounted on the top, left and right of the clasp.

In one embodiment: the clasp is a U-shaped piece, and the two ends of the U-shaped piece are fixedly connected to the monitor body.

In one embodiment: the outer portion of the limiting rod has a threaded portion, the inner ring surface of the annular fastener has a threaded portion, and the annular fastener and the limiting rod are fastened through threads.

In an embodiment: the limit assembly further includes a hand-held control part, and the hand-held control part is fixedly connected to the outer end of the limit rod outside the snap ring.

In one embodiment: the suction cup is a plastic suction cup.

Compared with the background technology, this technical solution has the following advantages:

1. The limiting assembly includes a limiting rod, a spring and an annular fastener. The snap ring is provided with at least one mounting hole. The limiting rod passes through the mounting hole and slides into the snap ring. The limiting rod is located at A protruding ring is fixed at the inner end of the snap ring, the protruding ring pushes against the cable, the spring slides into the limit rod and the two ends of the spring push against the protruding ring and the inner surface of the snap ring, the ring fastener Located on the outside of the clasp and locked on the outer part of the limit rod, as the cable expands and contracts due to changes in outdoor temperature, the limit component can properly adjust the position of the limit rod through the elastic adjustment of the spring, thereby avoiding the clasp ring It is cracked, simple in structure and ingenious in design.

2. It also includes a suction cup, which is fixed on the bottom surface of the convex ring, and can attract the cable, so that the contact between the limit rod and the cable is tighter, and the fixing of the monitor and the cable more solid.

3. There are at least three installation holes, and three sets of limit components. The limit components are mounted on the top, left and right parts of the snap ring, and are fixed in multiple directions. The monitor and the line The fixing effect of the cable is better, preventing the monitor from sliding on the cable, and it is suitable for cables of different specifications.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

FIG. 1 is a schematic diagram of a fault location monitor of the prior art described in the background art.

FIG. 2 is a schematic diagram of a burst-preventing fault location monitor with a set of limit components.

Fig. 3 is a schematic diagram of a fault location monitor for preventing bursting with three sets of limit components.

Detailed ways

Please refer to Fig. 2 to Fig. 3, a kind of fault locating monitor for preventing bursting, which includes a monitor body 10, a snap ring 20 affixed to the monitor body and at least one limit assembly 30, the limit assembly 30 includes a limit rod 31, a spring 32 and an annular fastener 33, the snap ring 20 is provided with at least one installation hole 21, the limit rod 31 passes through the installation hole 21 and slides on the snap ring 20 and has a An outer part located on the outside of the snap ring and an inner part located on the inside of the snap ring, the inner end of the limit rod 31 located on the inner side of the snap ring 20 is fixed with a protruding ring 34, and a protruding ring 34 is formed between the protruding ring 34 and the monitor body 10. A space for installing the cable 40, the cable 40 passes through the space, the protruding ring 34 abuts against the cable 40, the diameter of the outer ring surface of the ring fastener 33 is larger than the diameter of the mounting hole 21, and the spring 32 slides connected to the limiting rod 31 and the two ends of the spring 32 are against the inner surface of the protruding ring 34 and the snap ring 20, the annular fastener 33 is located on the outside of the snap ring 20 and locked on the outer part of the limiting rod 31, so as to The loop fastener 33 is restricted from passing through the mounting hole.

Preferably, a suction cup 35 is also included, the suction cup 35 is affixed to the bottom surface of the protruding ring 34, and can absorb the cable 40. In a preferred solution: the suction cup 35 is a plastic suction cup, the suction surface of the suction cup 35 There is an oval-shaped concave cavity for 40 radians of the cable.

In a preferred embodiment: the limit component 30 is one set, the snap ring 20 has a top facing the monitor body 10 , the limit component 30 is attached to the top of the snap ring 20 .

In yet another preferred embodiment: the number of the mounting holes 21 is at least three, the number of the limiting components 30 is three groups, the snap ring 20 has a top facing the monitor body 10 and is respectively located on the left and right sides of the top The limit assembly 30 is mounted on the top, left and right of the clasp 20 .

In a preferred solution: the snap ring 20 is a U-shaped piece, and the two ends of the U-shaped piece are fixedly connected to the monitor body 10 . According to the need, also can choose the curved piece.

In a preferred solution: the outer portion of the limiting rod 31 has a threaded portion, the inner ring surface of the annular fastener 33 has a threaded portion, and the annular fastener 33 and the limiting rod 31 are fastened through threads.

In a preferred solution: the limiting assembly 30 further includes a hand-held control part 36 fixedly connected to the outer end of the limiting rod 31 outside the clasp 20 .

In the actual installation process of the monitor, the cable 40 to be tested is first passed through the center of the snap ring 20, and then the limit rod 31 is adjusted to abut against the cable 40 so that the suction cup 35 sucks the cable 40, and the The annular fastener 33 is screwed to abut against the outer surface of the snap ring 20, that is, to adjust the set of limit assemblies 30. If there are three sets of limit assemblies 30, then adjust them in turn according to the above steps, so that the The monitor is firmly attached to this cable. Because the cable is exposed to the outside for a long time, due to the influence of the ambient temperature, thermal expansion and contraction will occur. If the cable is heated and expanded, the cable 40 will push against the limit rod 31, so that the limit rod 31 will move towards the snap ring. 20 moves outside, and the spring 32 is compressed by force, so that the clasp 20 will not be expanded and burst. If the cable 40 is cooled and shrinks, the limit rod 31 will move towards the cable 40 under the action of the restoring force of the spring 32 And still against the cable 40, the monitor is still firmly fixed on the cable.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the contents of the specification should still belong to this utility model. within the scope of utility models.

Claims (9)

1. one kind prevents the localization of fault monitor of spalling, comprise monitor body and be fixed in the snap ring on this monitor body, it is characterized in that: also comprise at least one limit assembly, this limit assembly comprises a gag lever post, one spring and an annular fastener, this snap ring is established at least one mounting hole, this gag lever post is by this mounting hole and slip this snap ring and have an outer part and that is positioned at snap ring outside the part that is positioned at snap ring inner side, the inner that this gag lever post is positioned at snap ring inner side sets firmly a bulge loop, between this bulge loop and this monitor body, form the space of an attaching cable, and this this cable of bulge loop contact, this spring slips the medial surface of this gag lever post and this bulge loop of both ends of the spring contact and this snap ring, this annular fastener is positioned at snap ring outside and is locked in the outer part of this gag lever post.

2. a kind of localization of fault monitor that prevents spalling according to claim 1, is characterized in that: also comprise a sucker, this sucker is fixed in this bulge loop bottom face, and can this cable of adhesive.

3. a kind of localization of fault monitor that prevents spalling according to claim 1, is characterized in that: the outer ring surface diameter of this annular fastener is greater than this mounting hole diameter.

4. a kind of localization of fault monitor that prevents spalling according to claim 1, is characterized in that: the quantity of this limit assembly is one group, and this snap ring has a top in the face of monitor body, and this limit assembly is secured to this snap ring top.

5. a kind of localization of fault monitor that prevents spalling according to claim 1, it is characterized in that: this mounting hole number has three at least, the quantity of this limit assembly is three groups, this snap ring has a top in the face of monitor body and lays respectively at left part and the right part of the left and right sides, top, and this limit assembly is installed in top, left part and the right part of this snap ring.

6. a kind of localization of fault monitor that prevents spalling according to claim 1, is characterized in that: this snap ring is a U-shaped part, and the two ends of this U-shaped part are fixed on this monitor body.

7. a kind of localization of fault monitor that prevents spalling according to claim 1, it is characterized in that: the outer part of this gag lever post has threaded portion, the inner ring surface of this annular fastener has threaded portion, and this annular fastener and this gag lever post are fastening by threaded engagement.

8. a kind of localization of fault monitor that prevents spalling according to claim 1, is characterized in that: this limit assembly also comprises a hand-held control part, and this hand-held control part is fixed in this and is positioned at the gag lever post outer end of snap ring outside.

9. a kind of localization of fault monitor that prevents spalling according to claim 2, is characterized in that: this sucker is plastic suckers.

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