CN102707102B - High-altitude insulation test jointing clamp - Google Patents

Abstract

The invention discloses a high-altitude insulation test jointing clamp, which is capable of saving clamping of workers when equipment is detected, ensuring safety of the workers, and increasing working efficiency. The high-altitude insulation test jointing clamp comprises a clamp head, a clamp base, a cavel bolt and an insulation bar, wherein the clamp head comprises a spreader, wherein a first connecting disc is fixed on the spreader, one end of the spreader is vertical or is bent to one side of the first connecting disc, a bolt is in threaded connection with the end surface of the other end of the spreader, the clamp base comprises a sleeve, a second connecting disc is fixed on the top of the sleeve, the first connecting disc and the second connecting disc are aligned and fixed through the cavel bolt, two surfaces of the first connecting disk, which are in contact with the second connecting disk, are respectively uniformly provided with one ring of lug bosses at equal intervals, and the first connecting disk and the second connecting disk are occluded through the lug bosses; and the top of the insulation bar is fixed in the sleeve of the clamp base. The high-altitude insulation test jointing clamp has the advantages of reasonable design, simple structure, light weight, practicability, safety and reliability, durability and capability of being assembled and disassembled freely, is little in surface contact resistance, and high in accuracy of data obtained through testing.

Description

High-altitude insulation test wiring pliers

technical field

The invention relates to a special tool for detecting electrical equipment or conducting high-voltage tests, in particular to a high-altitude insulation test wiring pliers.

Background technique

During the spring inspection preventive test and condition maintenance routine test of current transformers, voltage transformers, and lightning arresters in substations, it is necessary for the staff to climb up to the equipment under test at a height of 3.0 meters to connect the test leads. If the test leads are connected to the test terminal board If the contact is not good, the staff have to climb again to connect. Each test of a piece of equipment requires the staff to climb twice (once for wiring and once for dismantling). This kind of operation is not only cumbersome, but also labor-intensive, which affects work efficiency. , but also reduce the safety factor of the staff.

Contents of the invention

The purpose of the present invention is to provide a high-altitude insulation test wiring pliers, which can save the climbing of the staff during equipment testing (wiring and unwiring are convenient and simple), ensure the safety of the staff, and improve work efficiency , shorten working hours, etc. the

The present invention is achieved through the following technical solutions:

A kind of high-altitude insulation test wiring pliers, including pliers head, pliers base, claw bolts and insulating rods, pliers head includes a horizontal column, the column wall of the horizontal column is fixed with a first connection disc with a central through hole and the first connection circle The plate and the cross column are located on the same plane, one end of the cross column is straight or bent toward the side of the first connecting disc, and the end surface of the other end is provided with a threaded blind hole, and the internal thread of the threaded blind hole is connected with a bolt; the clamp seat includes a sleeve, The top of the sleeve is vertically fixed with a second connecting disc with a central threaded through hole; the first connecting disc on the pliers head is aligned with the second connecting disc on the pliers base and the claw bolt is passed through the first connecting disc After the central through hole of the second connecting disc is threadedly connected with the central threaded through hole of the second connecting disc, the two are fixed together, and the two surfaces of the first connecting disc and the second connecting disc are equally spaced and evenly distributed A ring of bumps, the pitch of the bumps is the same as the width of the bumps, and the ring of bumps on the first connecting disc and the ring of bumps on the second connecting disc are inserted and engaged with each other (that is: the first connection The bumps on the disc are snapped into the gaps between the bumps on the second connecting disc, and the bumps on the second connecting disc are snapped into the gaps between the bumps on the first connecting disc); the top of the insulating rod is fixed Inside the sleeve of the clamp base.

The protrusions respectively provided on the two surfaces of the first connecting disc and the second connecting disc, on the one hand, can make the first connecting disc and the second connecting disc engage with each other, making good contact and not easy to fall off; On the one hand, the occlusal setting of the bumps increases the contact area between the first connection disc and the second connection disc, the larger the contact area, the smaller the contact resistance between the two, and the smaller the impact on the test, The accuracy of test results has been improved.

When in use, connect the high-voltage test lead wire to the nut of the clamp head, and then screw the nut into the threaded blind hole at one end of the horizontal column of the clamp head, so that the high-voltage test lead wire and the clamp head are firmly connected, and then the staff only needs to stand Lift the insulation rod on the ground, so that the other end of the pliers is inserted and hung on the wiring board of the equipment under test at a high place (among them, the straight type is suitable for high-voltage current transformers and voltage transformers, and the hook type is suitable for high-voltage arresters), After inserting and hanging the pliers, the current loop and the voltage loop are fully conducted, and the high voltage test can be carried out.

Further, the insulating rod is a telescopic rod formed by inserting several sleeves, and a stop protrusion is provided between two adjacent sleeves. The insulating rod is designed to be telescopic, which is more convenient and free to use, and can be adjusted at any time according to the actual height of the device under test, saving space and time, and improving work efficiency. The stop protrusion is an existing technology (as shown in Figure 9), which is well known and easily realized by those skilled in the art. After the two adjacent sleeves are pulled out, they can be positioned by the stop protrusion, and the two adjacent sleeves need to be retracted , it can be retracted by pressing the stop protrusion, which is very convenient.

The insulating rods are all made of epoxy resin. Epoxy resin has excellent electrical insulation and is one of the best dielectric properties of thermosetting resins, which greatly improves the safety of the device.

The first connecting disc is also provided with a radial notch penetrating with the central through hole. This facilitates the loading and unloading replacement of the pliers head and the pliers seat, that is, the pliers head can be disassembled from the pliers seat without fully screwing out the horn bolts, which is convenient and quick.

The present invention is reasonable in design, simple in structure, light and practical, safe and reliable, and the pliers head and pliers seat in the present invention are firm and durable, not easily deformed, and have a longer service life. The invention saves the climbing of the staff during the test, ensures the safety of the staff, reduces the labor intensity, improves the work efficiency and shortens the working time. In addition, the surface contact resistance of the wiring pliers of the present invention is small, the influence of the surface contact resistance is minimized, and the accuracy of test data is greatly improved. The wiring pliers of the present invention have strong portability, and the design structures of the pliers heads, pliers seats, insulating rods, etc. are all convenient for free disassembly and assembly. When not in use, the parts can be disassembled and placed in the parts box; when in use, the parts can be installed and used freely, which is convenient to carry and saves space.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic structural view of the pliers in the present invention.

FIG. 3 is a rear view of FIG. 2 .

Fig. 4 is a left side view of Fig. 3 .

Fig. 5 is a schematic structural view of the clamp base in the present invention.

Fig. 6 is a right side view of Fig. 5 .

Fig. 7 is a schematic diagram of the structure of the anchor bolt in the present invention.

FIG. 8 is a top view of FIG. 7 .

Fig. 9 is a structural schematic diagram of the stop protrusion in the present invention.

Fig. 10 is a schematic diagram of the connection between the pliers head and the pliers base in the present invention.

Fig. 11 is a right side view of Fig. 10 .

In the figure: 1-clamp head, 2-clamp seat, 3-horn bolt, 4-insulating rod, 5-horizontal column, 6-first connecting disc, 7-threaded blind hole, 8-bolt, 9-sleeve , 10-second connecting disc, 11-bulge, 12-stop protrusion, 13-central through hole, 14-central threaded through hole, 15-radial notch.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figures 1 to 10, a high-altitude insulation test wiring pliers includes a clamp head 1, a clamp base 2, a horn bolt 3 and an insulating rod 4, and the clamp head 1 includes a horizontal column 5, which is fixed on the column wall of the horizontal column 5. There is a first connection disk 6 with a central through hole 13 and the first connection disk 6 is located on the same plane as the cross column 5, one end of the cross column 5 is straight or curved to the first connection disk 6 side, and the end surface of the other end There is a threaded blind hole 7 on the top, and the threaded blind hole 7 is internally threaded with a bolt 8; the clamp seat 2 includes a sleeve 9, and the top of the sleeve 9 is vertically fixed with a second connecting disc 10 with a central threaded through hole 14; The first connecting disc 6 on the head 1 is aligned with the second connecting disc 10 on the clamp seat 2 and the claw bolt 3 is passed through the central through hole 13 of the first connecting disc 6 to connect with the second connecting disc 10 The central threaded through hole 14 is threaded, and the two are fixed together. The two faces of the first connecting disc 6 and the second connecting disc 10 are respectively equally spaced and evenly distributed with a circle of bumps 11, and the bumps 11 The spacing is the same as the width of the bumps 11, and a ring of bumps 11 on the first connecting disc 6 and a ring of bumps 11 on the second connecting disc 10 are inserted and engaged with each other, that is, the first connecting disc 6 The bumps 11 on the second connecting disc 10 are snapped into the gaps between the bumps 11 on the second connecting disc 10, and the bumps 11 on the second connecting disc 10 are snapped into the gaps between the bumps 11 on the first connecting disc 6; The top of the insulating rod 4 is fixed in the sleeve 9 of the clamp base 2 .

During specific implementation, the insulating rod 4 is a telescopic rod formed by inserting a plurality of cut sleeves into each other, and stop protrusions 12 (see Fig. 9 ) are provided between adjacent two sleeves to fix adjacent sleeves inserted together. The sleeve pipe and the telescopic rod 4 are easy to use and save space. The overall material of the insulating rod 4 is made of epoxy resin, which has excellent electrical insulation and can greatly improve the safety of the device. The first connecting disc 6 is also provided with a radial notch 15 connected with the central through hole 13. The radial notch 15 can facilitate the removal of the pliers head 1 from the pliers holder 2, which is convenient and quick, and improves the work efficiency.

Claims (5)

1. a high-altitude Insulation test jointing clamp, comprise binding clip (1), clamp block (2) and insulating bar (4), binding clip (1) comprises spreader (5), clamp block (2) comprises sleeve (9), insulating bar (4) top is fixed in the sleeve (9) of clamp block (2), it is characterized in that: also comprise goat's horn bolt (3), the first clutch disk (6) and the first clutch disk (6) that on the post jamb of the spreader (5) of binding clip (1), are fixed with band central through hole (13) are positioned at same plane with spreader (5), one end of spreader (5) is straight or to the first clutch disk (6) curving, on the end face of the other end, offer tapped blind hole (7), tapped blind hole (7) internal thread is connected with bolt (8), sleeve (9) top vertical of clamp block (2) is fixed with second clutch disk (10) of band center tapped through hole (14), the first clutch disk (6) on binding clip (1) aligns and goat's horn bolt (3) is threaded with the center tapped through hole (14) of the second clutch disk (10) after the central through hole (13) through the first clutch disk (6) with the second clutch disk (10) in clamp block (2), the two is fixed together, on two faces that the first clutch disk (6) contacts with the second clutch disk (10), all distinguish an equidistant uniform circle projection (11), projection (11) spacing is identical with projection (11) width, and grafting interlock mutually between the circle projection (11) on the circle projection (11) of one on the first clutch disk (6) and the second clutch disk (10).

2. high-altitude according to claim 1 Insulation test jointing clamp, is characterized in that: the expansion link that described insulating bar (4) is comprised of the some sections of mutual insertings of sleeve pipe, is provided with retention tab (12) between adjacent two sleeve pipes.

3. high-altitude according to claim 1 and 2 Insulation test jointing clamp, is characterized in that: described insulating bar (4) all adopts epoxy resin to make.

4. high-altitude according to claim 1 and 2 Insulation test jointing clamp, is characterized in that: on described the first clutch disk (6), also offer the radially gap (15) connecting with its central through hole (13).

5. high-altitude according to claim 3 Insulation test jointing clamp, is characterized in that: on described the first clutch disk (6), also offer the radially gap (15) connecting with its central through hole (13).