CN209624733U - A current clamp mounting rod - Google Patents

Abstract

The utility model belongs to the field of electric high-voltage switch characteristic test, in particular to a current clamp installation rod, which includes a rod body composed of several insulating rods, the top of the rod body is provided with a current clamp connector, and the installation rod is also provided with a pulling One handle of the current clamp is fixedly connected to the connection head of the current clamp, and the other handle of the current clamp is connected to the pulling mechanism, and the pulling mechanism can open the jaws of the current clamp. The current clamp installation rod provided by the utility model can directly clamp the current clamp into the high-voltage cable through the installation rod on the ground, without the need for high-altitude operations, making this work simple, safe and portable.

Description

A current clamp mounting rod

technical field

The utility model belongs to the field of electric high-voltage switch characteristic test, in particular to a current clamp installation rod.

Background technique

When testing the characteristics of high-voltage switch circuit breakers, when the ground blades on both sides of the switch are grounded at the same time, the traditional single-ended grounding switch characteristic tester will not be able to test normally. At this time, it is required to use a double-ended grounding switch characteristic tester to test the switch characteristics. To use the double-terminal grounding switch characteristic tester, it is necessary to install electromagnetic induction current clamps on the high-voltage cables on both sides of the circuit breaker. At present, the above-mentioned current clamps are usually installed by working at heights. When working at heights, there is no corresponding clamp on the circuit breaker of the substation. The suspension point of the anti-fall seat belt brings safety hazards to the staff, increases work difficulty and preparation time, and is very inconvenient in actual operations.

Utility model content

In order to solve the above problems, the utility model provides a current clamp installation rod for the switch characteristic tester, which can directly clamp the current clamp to the high-voltage cable through the installation rod on the ground, without the need to carry out high-altitude operations. , making this job easy, safe and portable.

The technical scheme of the utility model is: a current clamp installation rod, including a rod body composed of several insulating rods, the top of the rod body is provided with a current clamp connector, and the installation rod is also provided with a pulling mechanism. The side handle is fixedly connected to the connecting head of the current clamp, and the other side handle of the current clamp is connected to the pulling mechanism, and the pulling mechanism can open the jaws of the current clamp.

The handle on one side of the current clamp is fixed on the top of the rod body through the connection head of the current clamp. The height of the rod body can be spliced and adjusted by several sections of insulating rods. At the same time, the handle on the other side of the current clamp is pulled by the pulling mechanism to open the jaws of the current clamp. on high voltage cables. Using the mounting rod, the current clamp can be quickly and time-savingly installed on the high-voltage cable without working at heights.

Further, the pulling mechanism includes a take-up wheel, a pulley, and a pull rope, the pulley is fixed on one side of the current clamp connector, the take-up wheel is fixed on the bottom side of the rod body, and one end of the pull rope It is fixedly connected with the handle on one side of the current clamp, and the other end of the pull rope is wound on the take-up wheel across the pulley, and a handle is provided on one side of the take-up wheel for rotating and recovering the pull rope Stretch the jaws of the current clamp. Utilize the pulley mechanism of the pulley and the take-up wheel, pull the pull rope through the handle to pull the handle on one side of the current clamp, so that the jaw of the current clamp can be quickly opened and installed on the high-voltage cable. Wherein the pulley is used to change the direction of the stay rope to reduce the frictional force, so that the current clamp can be pulled apart by the stay rope.

Further, the take-up wheel is provided with a fixing frame, and the line taking-up wheel is fixed on the rod body through the fixing frame, and the installation position of the fixing frame on the rod body can be changed according to the height requirement.

Further, the take-up wheel is provided with a limit pin and a limit hole, and the fixed frame is provided with a through hole, and the limit pin is sequentially inserted into the through hole and the limit hole to limit the position of the take-up wheel , making it impossible to rotate. The limit pin is welded on one side of the fixed frame through a thin iron chain and hung. When the pull rope is pulled by shaking the handle to open the jaw of the current clamp, the limit pin can prevent the take-up wheel from rotating and keep the clamp of the current clamp. Open the mouth until the current clamp is installed on the high-voltage cable, remove the limit pin, the jaw of the current clamp is reset and closed due to the force of the torsion spring of the current clamp itself, so that the pull rope pulls the take-up wheel to rotate and reset.

Further, the pulley and the take-up pulley are fixedly installed in the same vertical direction to reduce friction and facilitate the operator to quickly shake the handle and pull the pull cord to open the jaws of the current clamp.

Further, one end of the connection head of the current clamp is provided with a square hole for inserting the handle of the current clamp, and the other end of the connection head of the current clamp is provided with a first threaded hole for connecting with the insulating rod, one of the square holes is There is a second threaded hole on the side, and the connecting head of the current clamp is also provided with a torx screw, and the torx screw passes through the second threaded hole to lock the handle of the current clamp in the square hole. Use the Torx screw to lock one side handle of the current clamp in the square hole, so that the current clamp is firmly installed in the connection head of the current clamp.

Further, one end of the insulating rod is provided with a third threaded hole, the other end of the insulating rod is provided with a stud, and several sections of the insulating rod are connected end to end to form the rod body. The cable height of the current clamp can be installed according to actual needs, and a suitable number of insulating rods can be used to splice the rod body. At the same time, it can be disassembled when not in use, so it is easy to carry and store.

The beneficial effects of the utility model are: the current clamp installation rod of the utility model is cleverly designed so that the current clamp is installed on the current clamp connection head of the installation rod, and the height of the rod body can be adjusted by splicing the insulating rod, and the staff can lift the The rod body of the installation rod, and the current clamp can be opened and quickly installed on the high-voltage cable through the pulling mechanism. The whole process is assisted by the original multi-person, and can be completed by a single person without any high-altitude operations, saving time in use and installation. It is labor-saving, greatly improves work efficiency and the life safety of the staff, and the manufacturing cost is low, so it is worthy of vigorous promotion in the world.

Description of drawings

Fig. 1 is a schematic diagram of the closed state of the jaws of the current clamp.

Fig. 2 is a schematic diagram of the opening state of the jaws of the cable clamp.

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

Example 1:

As shown in Figures 1 and 2, one end of the insulating rod is provided with a third threaded hole, the other end of the insulating rod is provided with a stud, and several sections of insulating rods are connected end to end to form a rod body 1, and the top of the rod body 1 is provided with a current Clamp connector 2, one end of the current clamp connector 2 is provided with a square hole 11 for inserting the handle on one side of the current clamp, and the other end of the current clamp connector 2 is provided with a first threaded hole for connecting with the first section of the insulating rod. Column connection, one side of the square hole 11 is provided with a second threaded hole, the current clamp connector 2 is also provided with a torx screw 12, and the torx screw 12 passes through the second threaded hole to lock the handle of the current clamp in the square hole 11; The handle on the other side of the current clamp is connected to the pulling mechanism. The pulling mechanism includes a take-up pulley 3, a pulley 4, and a pull rope 5. The pulley 4 is fixed on one side of the current clamp connector 2 by screws, and the take-up pulley 3 is provided with a fixing frame. 7. The fixed frame 7 is fixed on the bottom of the rod body 1 by bolts, and the take-up wheel 3 is fixed in the fixed frame 7 through the rotating shaft. In the fixed ring of the handle on one side of the current pliers, the other end of the stay rope 5 is wound on the take-up pulley 3 across the pulley 4, and one side of the take-up pulley 3 is provided with a handle 6 for rotating and recovering the stay rope 5 to make the current pliers The jaws are stretched; the take-up wheel 3 is provided with a limit pin 8 and a limit hole 9, and the fixed frame 7 is provided with a through hole 10, and the limit pin 8 is inserted into the through hole 10 and the limit hole 9 in turn to adjust the take-up wheel 3 Limit it so that it cannot rotate.

When in use, first connect the switch characteristic tester with the signal output port of the current clamp itself through the wire, and then turn the handle 6 of the take-up wheel 3 counterclockwise, so that the pull rope 5 pulls the handle on one side of the current clamp downward, that is The jaws of the current clamp can be stretched open. At this time, the limit hole 9 on the take-up wheel 3 is aligned with the through hole 10 of the fixed frame 7, and the limit pin 8 is inserted to limit the position so that the take-up wheel 3 cannot rotate. The jaws of the current clamp remain open, as shown in Figure 2, the rod body 1 can be used to lift the jaws of the current clamp into the high-voltage cable, and finally the limit pin 8 is removed. The force of the torsion spring of the clamp itself will automatically close, so that the pull rope 5 pulls the take-up wheel 3 and turns clockwise to reset, as shown in Figure 1. After the test of the characteristics of the high-voltage switch circuit breaker is completed, open the current clamp again in the same way. The current clamp can be easily removed from the jaws.

The whole process can be completed by one person without any high-altitude operations, saving time and effort in use and installation. At the same time, after use, the current clamp can be disassembled by twisting the torx screw 12, and the current clamp connector 2 can be separated from the insulating rod. , The insulation rods are separated, easy to disassemble, and convenient to carry and store.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (7)

1. a kind of current clamp mounting rod, which is characterized in that including the body of rod (1) being made of several section insulating bars, the body of rod (1) Top be equipped with current clamp connector (2), which is additionally provided with pulling mechanism, the side grip and the current clamp of current clamp Connector (2) is fixedly connected, and another side grip of current clamp is connect with the pulling mechanism, and the pulling mechanism can make current clamp Jaw strut.

2. a kind of current clamp mounting rod according to claim 1, which is characterized in that the pulling mechanism includes take-up pulley (3), pulley (4), drawstring (5), the pulley (4) are fixed on the side of the current clamp connector (2), the take-up pulley (3) It is fixed on the bottom side of the body of rod (1), one end of the drawstring (5) is fixedly connected with a side grip of current clamp, described The other end of drawstring (5) is wrapped on the take-up pulley (3) across the pulley (4), and the side of the take-up pulley (3) is equipped with hand Handle (6) struts current clamp jaw for rotating the recycling drawstring (5).

3. a kind of current clamp mounting rod according to claim 2, which is characterized in that the take-up pulley (3) is equipped with fixed frame (7), the take-up pulley (3) is fixed on the body of rod (1) by the fixed frame (7).

4. a kind of current clamp mounting rod according to claim 3, which is characterized in that the take-up pulley (3) is equipped with spacer pin (8) and limit hole (9), the fixed frame (7) is equipped with through-hole (10), the spacer pin (8) be sequentially inserted into the through-hole (10) and The take-up pulley (3) can be limited in the limit hole (9), be able to rotate it not.

5. a kind of current clamp mounting rod according to claim 2, which is characterized in that the pulley (4) and the take-up pulley (3) it is fixedly mounted on same vertical direction.

6. a kind of current clamp mounting rod according to claim 1, which is characterized in that the one of the current clamp connector (2) End is equipped with the handle that square hole (11) are used to be inserted into current clamp, and the other end of the current clamp connector (2) is equipped with the first threaded hole For connecting with the insulating bar, the side of the square hole (11) is equipped with the second threaded hole, and the current clamp connector (2) also sets Have plum blossom screw rod (12), the plum blossom screw rod (12) passes through second threaded hole and the handle of current clamp is locked at the square hole (11) in.

7. a kind of current clamp mounting rod according to claim 1, which is characterized in that one end of the insulating bar is equipped with third Threaded hole, the other end of the insulating bar are equipped with stud, and insulating bar described in several sections forms the body of rod by joining end to end.