CN211579009U - Suspensible bidirectional pull-out type grounding wire - Google Patents

Abstract

The utility model relates to a suspendable bidirectional pull-out grounding wire, comprising a grounding wire and a wire storage box. The wire storage box is a square box body, and a rotatable bobbin is installed on the front and rear side walls of the wire storage box near the lower position. The first winding reel and the second winding reel are fixed on the bobbin, and the grounding wire is continuously wound on the two winding reels, and the winding directions are opposite. The two ends of the wire are respectively drawn out from the two lead wires. One end of the ground wire is connected to the bolt-type grounding terminal, and the other end is three-phase. Each phase is connected to a grounding clamp, and each grounding clamp is connected to an insulating rod; The front side of the wire storage box is located above the installation position of the spool, and three rows of opening clips arranged up and down are fixed, so that the three insulating rods are arranged up and down on the front side of the wire storage box. The handle; also includes a pay-off lock structure and an automatic wire take-up structure. This ground wire is practical, safe and portable.

Description

A suspendable two-way pull-out ground wire

technical field

The utility model belongs to the technical field of substation operation and maintenance grounding wires in power systems, in particular to a two-way pull-out grounding wire that can be suspended.

Background technique

At present, there are two problems with the grounding wires commonly used in substations: 1. Due to the need for equipment grounding, the grounding wires used in daily use are generally long, and the grounding wires are prone to entanglement or curling, which is inconvenient to use. 2. The exposed ground wire is vulnerable to mechanical damage. 3. The physical properties of the ground wire are soft and not fixed. Although the operator wears insulating gloves during the process of hanging the ground wire, the ground wire may still touch the operator's arm, which is a hidden danger.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a suspendable two-way pull-out ground wire with practicability, safety and portability.

The utility model solves its technical problems by adopting the following technical solutions:

A suspendable two-way pull-out grounding wire is characterized in that:

Including a ground wire and a wire storage box, the wire storage box is a square box body, a rotatable bobbin is installed on the front and rear side walls of the wire storage box near the lower part, and a first bobbin and a bobbin are fixedly installed on the bobbin. In the second winding reel, the grounding wire is continuously wound on the two winding reels, and the winding directions on the two winding reels are opposite. A lead outlet is respectively provided on the left and right side of the storage box. The two ends are respectively drawn from the two lead wires, one end of the grounding wire is connected to the bolted grounding terminal, the other end of the grounding wire is three-phase, each phase is connected to a grounding clamp, and each grounding clamp is connected to an insulating rod ;Three rows of opening clips arranged up and down are fixed on the front side of the wire storage box above the installation position of the spool, so that the three insulating rods are arranged up and down on the front side of the wire storage box. The upper end is connected with a handle that can be used for both carrying and hanging;

It also includes a wire pay-off lock structure and an automatic wire take-up structure.

Further: the pay-off locking structure is composed of a one-way gear and a limit paddle matched with the tooth part of the one-way gear; the one-way gear is arranged in the wire storage box and is fixedly installed on the spool; The rotation direction of the one-way gear is consistent with the pay-off direction of the spool; an installation port is provided on the lower end side wall of the spool box, and the limit paddle is partially inserted and partially exposed. A pin shaft is installed on the outside of the lower end side wall of the wire storage box through the axle frame. The limit paddle is rotatably installed on the pin shaft, and a torsion spring is sleeved on the pin shaft. One end of the torsion spring is connected to the lower end of the wire storage box. The side wall is fixed, and the other end of the torsion spring forms a pressing contact with the limit paddle.

Further: the automatic wire take-up structure adopts a coil spring, the inner end of the coil spring is fixedly connected with the bobbin, the outer end of the coil spring is fixedly connected with the inner wall of the wire storage box, and the tightening direction of the coil spring is related to the payoff direction of the bobbin. Consistent.

Further: the wire storage box is made of hard transparent plastic as a whole.

Further: the wire storage box is composed of a main body of the wire storage box and two transparent covers fixed in the two reserved holes on the front and rear side walls of the main body, and the bobbin is supported at the center of the two transparent covers.

The advantages and positive effects that the utility model has:

1. In the present invention, the grounding wire is wound on two coaxially fixed winding reels in the wire storage box in the opposite direction, so that the grounding wire can be pulled out in both directions, and the bolted grounding end of one end of the grounding wire can be The other end of the grounding wire is connected to the grounding device; the wire-paying locking structure can realize the locking after the pulling wire is in place, and the automatic wire-receiving structure can realize the simultaneous retracting of the grounding wire extending from both ends after the locking position is released. Winding, thereby improving the efficiency of operators when using the grounding wire, reducing unnecessary wire management and wire winding work, protecting the grounding wire body from external force damage, and convenient and quick to take and use.

2. The utility model installs three rows of clips on the front side of the storage box, which are respectively used to clip the insulating rods connected to the three-phase branch line. In this way, during the operation of one phase, the other two phases can be fixed and the operation is avoided. The possibility of accidental contact between the human body and the ground wire protects personal safety and improves the safety of operation and maintenance personnel to a certain extent.

In conclusion, the present invention has various advantages such as practicability, safety and portability.

Description of drawings

Fig. 1 is the external structure schematic diagram of the present utility model;

Fig. 2 is the three-dimensional structure diagram of the spool, two winding reels, pay-off locking structure and automatic take-up structure of the utility model;

Figure 3 is a schematic diagram of the installation of several parts of the spool, two winding reels, the pay-off locking structure and the automatic take-up structure of the present invention.

Detailed ways

The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present utility model.

See Figure 1-3 for a suspendable two-way pull-out ground wire. The invention points are as follows:

Including the ground wire 4 and the wire storage box 1, the wire storage box is a square box body, a rotatable spool 5 is installed on the front and rear side walls of the wire storage box near the lower part, and a first winding is fixed on the spool. On the reel 9 and the second reel 10, the ground wire is continuously wound on the two reels, and the winding directions on the two reels are opposite, that is, clockwise and counterclockwise respectively on the two reels Wrap the ground guide. A lead outlet is provided on the left and right sides of the wire storage box, respectively. The two ends of the grounding wire are drawn out from the two lead wires respectively. , each phase is connected to a grounding clamp 7, and each grounding clamp is connected to an insulating rod 8. Three rows of opening clips 3 arranged up and down are fixed on the front side of the wire storage box above the installation position of the spool, so that the three insulating rods are arranged up and down on the front side of the wire storage box. The upper end is connected with a handle 2 that can be used for both carrying and hanging, which is convenient for accessories hung on the grounding device during carrying and use.

It also includes a wire pay-off lock structure and an automatic wire take-up structure.

Further: the pay-off locking structure is composed of a one-way gear 11 and a limit paddle 13 matched with the tooth portion of the one-way gear. The one-way gear is arranged in the wire storage box, and is fixedly installed on the spool, and the rotation direction of the one-way gear is consistent with the threading direction of the spool. An installation port is provided on the lower end side wall of the wire storage box, the limit paddle is arranged at the installation port in a way that part of the insert is partially exposed, and a pin shaft is installed outside the lower end side wall of the wire storage box through a shaft bracket, The limit paddle is rotatably mounted on the pin shaft, and a torsion spring 14 is sleeved on the pin shaft. One end of the torsion spring is fixed to the lower end side wall of the wire storage box, and the other end of the torsion spring is formed with the limit paddle. Pressure contact.

Further: the automatic take-up structure adopts a coil spring 12, the inner end of the coil spring is fixedly connected with the spool, the outer end of the coil spring is fixedly connected with the inner wall of the storage box, and the tightening direction of the coil spring is connected with the pay-off rotation of the spool. to the same.

By adopting the above-mentioned pay-off lock structure and automatic wire take-up structure, when the ground wire is pulled out in the forward direction, the limit paddle will be pushed away by the teeth of the one-way gear; when the wire is stopped, the limit paddle will be stuck in the tooth slot , to limit the circumferential direction of the one-way gear, so as to limit the pull-out length of the ground wire. After use, press the outer end of the limit paddle to lift the limit paddle to release the circumferential limit on the one-way gear. Under the action of the coil spring, the bobbin drives the two winding reels and the one-way gear. Reverse rotation, so that the two protruding ends of the grounding wire are gradually wound on the two winding reels respectively, so as to realize the winding reset of the grounding wire.

The above-mentioned storage box preferably adopts the following two structures:

The first structure: the wire storage box is made of hard transparent plastic.

The second structure: the wire storage box is composed of a main body part 1-1 of the wire storage box and two transparent covers 1-2 fixed in the two reserved holes on the front and rear side walls of the main body part, and the bobbin is supported on the two sides. the center of a transparent cover.

The wire storage box adopts the above two structures, on the basis of protecting the ground wire from being damaged by external force, it is convenient to observe whether the ground wire is damaged before use.

Although the embodiments of the present invention and the accompanying drawings are disclosed for the purpose of illustration, those skilled in the art will understand that various replacements, transformations and modifications can be made without departing from the spirit and scope of the present invention and the appended claims. It is possible, therefore, that the scope of the present invention is not limited to what is disclosed in the embodiments and drawings.

Claims (5)

1. A suspendable, bi-directional pullout ground cord, comprising:

the wire storage box is a square box body, rotatable wire spools are arranged on the front side wall and the rear side wall of the wire storage box and close to the lower portion of the wire storage box, a first wire spool and a second wire spool are fixedly arranged on the wire spools, the grounding wire is continuously wound on the two wire spools, the winding directions of the two wire spools are opposite, a lead outlet is respectively arranged on the left side and the right side of the wire storage box, two end portions of the grounding wire are respectively led out from the two lead outlets, one end portion of the grounding wire is connected with a bolt type grounding end, the other end portion of the grounding wire is divided into three phases, each phase is connected with a grounding wire chuck, and each grounding wire chuck is connected with an; three rows of open clips which are arranged up and down are fixed on the front side surface of the wire storage box above the mounting position of the wire shaft, so that three insulating rods are clamped on the front side of the wire storage box in an up-down arrangement mode, and the upper end of the wire storage box is connected with a handle which can realize two purposes of carrying and hanging;

the automatic wire winding machine further comprises a wire releasing locking structure and an automatic wire winding structure.

2. A suspendable two-way pullout grounding wire as in claim 1, wherein: the pay-off locking structure consists of a one-way gear and a limiting shifting piece matched with the tooth part of the one-way gear; the one-way gear is arranged in the wire storage box and is fixedly arranged on the wire shaft; the rotation direction of the one-way gear is consistent with the paying-off rotation direction of the spool; the side wall of the lower end of the wire storage box is provided with a mounting opening, the limiting shifting piece is arranged at the mounting opening in a mode that part of the inserting part is exposed, a pin shaft is arranged outside the side wall of the lower end of the wire storage box through a shaft bracket, the limiting shifting piece is rotatably arranged on the pin shaft, a torsion spring is sleeved on the pin shaft, one end of the torsion spring is fixed with the side wall of the lower end of the wire storage box, and the other end of the torsion spring is in abutting contact with the limiting shifting piece.

3. A suspendable two-way pullout grounding wire as in claim 2, wherein: the automatic wire winding structure adopts a coil spring, the inner end of the coil spring is fixedly connected with the wire spool, the outer end of the coil spring is fixedly connected with the inner wall of the wire storage box, and the tightening steering direction of the coil spring is consistent with the wire releasing turning direction of the wire spool.

4. A suspendable two-way pullout grounding wire as in claim 1, wherein: the wire storage box is integrally made of hard transparent plastic.

5. A suspendable two-way pullout grounding wire as in claim 1, wherein: the wire storage box is composed of a wire storage box main body part and two transparent covers fixed in two reserved holes in the front side wall and the rear side wall of the main body part, and the wire shaft is supported in the center positions of the two transparent covers.

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