CN217848356U

CN217848356U - CT polarity detection wire clamp for electric power system

Info

Publication number: CN217848356U
Application number: CN202221604188.7U
Authority: CN
Inventors: 王宇涵
Original assignee: Northeast Dianli University
Current assignee: Northeast Electric Power University
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-18
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a CT polarity detection wire clamp of an electric power system, which comprises a chuck, two clamping arms arranged in the chuck, a junction pole connected below the chuck and a top rod arranged on the junction pole and positioned below the two clamping arms, wherein the top rod drives the top rod to move up and down through a worm gear mechanism, and the top rod jacks a high-voltage wire between the two clamping arms after rising; the utility model discloses below at the centre gripping arm is provided with the ejector pin to the ejector pin has realized utilizing the turbine worm to drive through certain structure, because the turbine worm drive has the specificity of auto-lock, after the ejector pin height adjustment targets in place, can only make the ejector pin whereabouts through adjusting the worm, and can't utilize dead weight or other modes to make the ejector pin whereabouts, has guaranteed the structural stability when using, prevents effectively that the wire from droing in the centre gripping arm.

Description

CT polarity detection wire clamp for electric power system

Technical Field

The utility model relates to an electric power system CT polarity detects fastener.

Background

In the CT polarity measurement work, the problems that the outdoor work has danger of falling down from the air, the measurement work is complicated and needs to be confirmed for many times, the used working hours do not meet the requirements of work specifications and the like exist. For example, when outdoor high-order CT wiring is performed, a person needs to ascend and set a guardian, which wastes time and working personnel. Some existing jointing clamps can replace climbing operation, but various defects exist.

For example, a common pressure-welding type jointing clamp has good contact and is not easy to fall off, but two persons are required to cooperate to disassemble the wire, and the safety is poor because the pressure-welding type jointing clamp needs to ascend and press.

In addition, as for the hanging type jointing clamp, the contact is loose, the fixing is required manually, and the swinging probability is caused by the influence of weather.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a power system CT polarity detects fastener is provided, convenient and fast just is difficult for droing when using.

The utility model adopts the technical proposal that:

the utility model provides a jointing clamp, its includes the chuck, sets up two centre gripping arms in the chuck, connects the junction pole of chuck below and install on the junction pole and be located the ejector pin of two centre gripping arms below, the ejector pin passes through worm gear mechanism drive its up-and-down motion, the ejector pin rises the back and withstands the high-voltage line between two centre gripping arms.

Furthermore, the worm and gear mechanism comprises a mounting plate arranged at the top of the junction pole, a worm gear arranged on the mounting plate in a rotating mode through a rotating shaft and a driving rod arranged inside the junction pole, the top of the driving rod is provided with a worm rod part, the worm rod part is meshed with the worm gear, a convex column is arranged on the side wall of the worm gear, one side of the ejector rod is connected with a connecting column in lap joint with the convex column, and the connecting column is in lap joint above the convex column.

Furthermore, the convex column is evenly provided with on the lateral wall of worm wheel, and is located and is close to marginal position, the end of spliced pole is located the left side of worm wheel rotation axis.

Further, be equipped with sliding sleeve on the mounting panel, the ejector pin is installed and is equipped with the hole of stepping down in sliding sleeve's one side, the spliced pole is located the hole of stepping down.

Furthermore, the top of the ejector rod is in an inwards concave arc shape.

Furthermore, one end of the clamping arm is rotatably connected with the chuck, and a torsion spring is arranged between the clamping arm and the chuck.

A CT polarity rapid detection device comprises a signal processing circuit, a result indicating circuit, a test wire and a jointing clamp.

The utility model discloses an actively the effect does:

the utility model discloses be provided with the ejector pin in the below of centre gripping arm to the ejector pin has realized utilizing the turbine worm to drive through certain structure, because the turbine worm drive has the particularity of auto-lock, after ejector pin height adjustment targets in place, can only make the ejector pin whereabouts through adjusting the worm, and can't utilize dead weight or other modes to make the ejector pin whereabouts, structural stability when having guaranteed the use effectively prevents that the wire from droing in the centre gripping arm. The clamping operation of the wire is realized by utilizing the two clamping arms with the torsional springs, the wiring clamp is directly hung on a high-voltage wire during use, the metal clamping arms can clamp the wire, the contact is good, and the use is very convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1

The embodiment provides a binding clip, as shown in figure 1, it is including the chuck 1 that is the shape of falling U, set up two centre gripping arms 2 in chuck 1, connect at the junction pole 3 of chuck 1 one end below and install on junction pole 3 and be located two ejector pin 6 that centre gripping arm 2 put the below, the top of ejector pin 6 is the arc of indent, so that with the wire cooperation, ejector pin 6 passes through its up-and-down motion of worm gear structure drive, when moving to top extreme position, ejector pin 6 can be withstood the wire that is located between two centre gripping arms 2, effectively prevent it from droing.

The centre gripping arm 2 has two and is located chuck 1's both sides inner wall respectively, and centre gripping arm 2 is connected through the pivot with 1 inner wall of chuck that corresponds to be equipped with the torsional spring between centre gripping arm 2 and chuck 1, under natural state, because the effect of torsional spring, the top of two centre gripping arms 2 is pressed together, and when having the wire, the torsional spring is compressed, and the wire is pressed the tip position at two centre gripping arms 2.

Specifically, the worm gear structure comprises a mounting plate 4 arranged on the top of the junction pole 3, a worm wheel 7 arranged on the mounting plate 4 in a rotating mode through a rotating shaft, and a driving rod 8 arranged inside the junction pole 3, wherein a worm rod part 9 is arranged on the top of the driving rod 8, and the worm rod part 9 is meshed with the worm wheel 7. Meanwhile, a convex column 11 is arranged on the side wall of the worm wheel 7, a connecting column 12 is installed on one side of the ejector rod 9, and the connecting column 12 is lapped above the convex column 11. The convex columns 11 are uniformly arranged on the side wall of the worm wheel 7 in number 3 and are positioned close to the edge of the worm wheel, and the worm wheel rotates to drive the convex columns 11 to realize height change, so that the connecting columns 12 and the ejector rods 6 are driven to move together.

For the convenience of production, the tail end of the connecting column 12 is located on the left side of the rotating shaft of the worm wheel 7, so that the convex column 11 in contact with the connecting column 12 deflects upwards until the position to be separated from the connecting column 12 is reached, the ejector rod 6 is located at the highest limit position, and at the moment, the top end of the ejector rod 6 is in contact with the wire between the two clamping arms 2, so that the wire is limited and prevented from being separated. After surpassing this extreme position, projection 11 breaks away from with spliced pole 12, and spliced pole 12 falls to the projection 11 of below position on, rotatory worm wheel 11 can realize ejector pin 6's upward drive once more, adopts the utility model discloses a structure, worm portion 9 only need be rotatory to a direction, can realize the rising and the removal of ejector pin 6, and the auto-lock characteristic of usable worm gear, the phenomenon that the pine takes off can not appear in the tight in-process in top.

Example 2

The embodiment is a further supplement to embodiment 1, in this embodiment, a sliding sleeve 5 is arranged on the mounting plate 4, the sliding sleeve 5 has a certain height, the ejector rod 6 is slidably mounted in the sleeve 5, a yielding hole 10 is arranged on one side of the sliding sleeve 5, the connecting column 12 is located in the yielding hole 10, and the sliding sleeve 5 is used for limiting the ejector rod 6 to a certain extent, so as to ensure the smoothness of the up-and-down movement thereof.

Example 3

The present embodiment provides a CT polarity rapid detection apparatus, which includes a signal processing circuit, a result indicating circuit, a test line and the aforementioned wire clamp.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides an electric power system CT polarity detection fastener, its characterized in that it includes chuck (1), sets up two centre gripping arms (2) in chuck (1), connects connecting terminal (3) in chuck (1) below and install on connecting terminal (3) and be located ejector pin (6) of two centre gripping arms (2) below, its up-and-down motion is driven through worm gear mechanism in ejector pin (6), ejector pin (6) are withstood the high-voltage line between two centre gripping arms (2) after rising.

2. The CT polarity detection wire clamp for the power system according to claim 1, wherein the worm and gear mechanism comprises a mounting plate (4) arranged at the top of the junction pole (3), a worm gear (7) rotatably arranged on the mounting plate (4) through a rotating shaft, and a driving rod (8) arranged inside the junction pole (3), a worm rod part (9) is arranged at the top of the driving rod (8), the worm rod part (9) is meshed with the worm gear (7), a convex column (11) is arranged on the side wall of the worm gear (7), a connecting column (12) in lap joint with the convex column (11) is connected to one side of the ejector rod (6), and the connecting column (12) is in lap joint with the convex column (11).

3. The power system CT polarity detection wire clamp according to claim 2, characterized in that the number of the convex columns (11) is 3 on the side wall of the worm wheel (7) and is located close to the edge, and the end of the connecting column (12) is located at the left side of the rotating shaft of the worm wheel (7).

4. The power system CT polarity detection wire clamp according to claim 2 or 3, characterized in that a sliding sleeve (5) is arranged on the mounting plate (4), the ejector rod (6) is arranged in the sliding sleeve (5) and provided with a yielding hole (10) at one side of the sliding sleeve (5), and the connecting column (12) is arranged in the yielding hole (10).

5. The CT polarity detection wire clamp of the electric power system as claimed in claim 2, wherein the top of the top rod (6) is concave arc-shaped.

6. The power system CT polarity detection wire clamp according to claim 1, characterized in that one end of the clamping arm (2) is rotatably connected with the chuck (1), and a torsion spring is arranged between the clamping arm (2) and the chuck (1).