CN210894472U - A test electric auxiliary trolley for transformer substation tests electrography - Google Patents

Abstract

The utility model discloses an electric test auxiliary trolley used for an electric test pen in a substation, which comprises a hollow tube, a plurality of support rods for supporting the hollow tube, and a trolley body. One end of the support rod is fixed on the outer peripheral surface of the hollow tube The other end is fixed on the body of the trolley. When the electric inspection work of the substation starts, the electric inspection pen passes through the inside of the hollow tube and is fixed by the hollow tube. The utility model overcomes the drawbacks that the electro-examination pen cannot be fixed and falls over when the electro-examination pen is high and heavy, and the operator's strength is insufficient, and bumps against other equipment, resulting in the falling off of the insulating paint of the contacted equipment and damage to the electro-examination pen head. Electrical work efficiency and electrical inspection safety.

Description

A kind of electric test auxiliary trolley used for electric test pen in substation

technical field

The utility model relates to the technical field of auxiliary equipment for electric examination of substations, and more particularly, to an auxiliary electric trolley for electric examination of electric substations.

Background technique

In order to further ensure the safe operation of power grid equipment, it is necessary to conduct power inspection on the power failure equipment before installing the grounding wire or closing the grounding switch on the power failure electrical equipment. To ensure the safety of the staff at all times, prevent the occurrence of vicious accidents such as live installation of grounding wires or live grounding isolation switches.

Since the substation, especially the 500kV primary equipment, adopts the wiring method of 3/2 circuit breaker, and it is an open type equipment, the distance between phases is relatively long, the operator needs to conduct electricity test phase by phase, and the height of the test pen used can reach 10 meters. It is far greater than the height of a normal person, and the electroscope is very bulky. When the electroscope work is carried out, the operator needs to hold the electroscope to conduct the electroscope. When the high and heavy electroscope is fully extended, the upper part of the electroscope shakes greatly. Especially in the case of wind, the operator has to work very hard to stabilize the lower end of the electroscope. Therefore, a lot of physical strength and time are required for each electroscope operation, and the operation efficiency is low. On the other hand, in the case of insufficient strength of the operator, the electroscope falls over because it cannot be fixed, bumps against other equipment, and causes the insulating paint of the contacted equipment to fall off, and it is easy to damage the electroscope head, which is a huge problem for operators and equipment. Security risks.

In addition, because there is no uniform placement of the test pen and insulating gloves before and after the test operation, the operators mostly place the test pencil against the equipment box, and the insulating gloves are placed on the top of the box. risk.

Utility model content

The utility model is to overcome the high and heavy electric test pen in the electric test work of the substation, especially the substation of 500kV. In the case of insufficient strength of the operator, the electric test pen cannot be fixed and falls down, bumping other equipment, resulting in the contacting equipment insulating paint Due to the disadvantages of falling off and damaging the tip of the test pen, it provides a test auxiliary trolley for the test pen in the substation. It can also ensure the uniform placement of insulating gloves before and after the test operation, prevent the test pen from rolling over, and improve the power test efficiency and power test. safety.

In order to achieve the above-mentioned technical effect, the technical scheme of the present utility model is as follows:

An auxiliary trolley for electricity testing used for a test pen in a substation, comprising a hollow tube, a plurality of support rods for supporting the hollow tube, and a trolley body, one end of the support rod is fixed on the outer peripheral surface of the hollow tube, The other end is fixed on the trolley body. When the electricity inspection work starts, the support rod ensures that the center of gravity of the entire electricity inspection pen is consistent with that of the electricity inspection auxiliary trolley.

Preferably, the hollow tube includes an upper hollow tube and a lower hollow tube, the trolley body includes a hand-push beam, a base and a push-back frame, the lower side of the base is provided with a plurality of wheels for moving, the left and right sides of the base There are telescopic rods on both sides, and a basket is provided on the push-back frame of the trolley body; the telescopic rod includes a telescopic front piece, a wing support rod that can extend to the left and right sides, and a T-shaped support for supporting the balance of the trolley. The lower side of the wing support rod is provided with a plurality of wheels for moving, which can play the role of balancing the moment. The T-shaped nail is connected to the wing through the fixing nut provided on the edge side of the wing support rod. The support rod is connected, and the thread on the side of the T-nail is matched with the thread of the fixing nut. During the electrical inspection work, especially when the electrical inspection is performed on the uneven ground, rotating the T-nail can adjust the direct connection between the T-nail and the ground. The distance to support the balance of the electric inspection aid trolley on a non-horizontal plane.

Preferably, two through holes are provided on both sides of the base, and the distance between the centers of the two through holes on one side is smaller than the distance between the centers of the two through holes on the other side, so The diameter of the telescopic front piece of the telescopic rod is smaller than the diameter of the through hole, so that the telescopic front piece of the telescopic rod can penetrate into the interior of the base through the conduction holes on both sides of the base. The distance between the two sides of the base is the same, and the front ends of the telescopic front pieces of the left and right telescopic rods after penetrating into the base will not hinder each other during the shrinking process, ensuring that the left and right telescopic rods of the base are normal when the power inspection is completed. Folding: When the telescopic front piece of the telescopic rod on one side of the base penetrates into the interior of the base through the through hole on the side, the front end surface of the telescopic front piece is just docked with the side of the base opposite to the side; When the telescopic front piece of the telescopic rod on one side penetrates into the interior of the base through the through hole on the side, the front end surface of the telescopic front piece just abuts the side of the base opposite to the side. The telescopic rod is in a retracted state during non-working periods and does not occupy extra space.

Preferably, a rotation hole and a thumb screw matching the rotation hole are provided on the side peripheral surfaces of the upper hollow tube and the lower hollow tube of the hollow tube, and the thread on the inner side of the rotation hole is the same as the thread of the thumb screw. Matching, the wing screw is connected with the hollow tube through the rotating hole; the interior of the upper hollow tube and the lower hollow tube is provided with an insulating rubber layer, and the outer peripheral surface of the insulating rubber layer and the inner peripheral surface of the hollow tube are Fixed connection, the side peripheral surface of the insulating rubber layer is provided with a rotation hole in the same position and the same direction as the side peripheral surface of the hollow tube, and the wing screw on the side of the hollow tube passes through the rotation hole and the hollow tube at the same time. The rotating hole of the insulating rubber layer is connected with the insulating rubber layer, and the central axes of the upper hollow tube and the lower hollow tube are collinear. An insulating piece is provided, and by rotating the wing screw, the contact tightness of the insulating piece at the front end of the wing screw and the outer peripheral surface of the electroscope is adjusted, so as to fix the electroscope.

Preferably, a first beam and a second beam are arranged in the middle of the base, the first beam and the second beam are arranged in parallel, and the distance between the first beam and the second beam is the same as the length of the inner diameter of the insulating rubber layer , to facilitate the penetration of the lower end of the electroscope.

Compared with the prior art, the beneficial effects of the technical solution of the present utility model are:

1) The electric examination auxiliary trolley disclosed by the present utility model is provided with a hollow tube, and under the condition that the electric examination pen is high and heavy and the operator’s strength is insufficient, the trolley supports the electric examination pen through the upper and lower hollow tubes, and fixes the electric examination pen through the thumb screw. , which can prevent the electroscope from tipping over and bumping against other equipment, causing the insulating paint of the contacted equipment to fall off and damage to the electroscope head;

2) The utility model discloses an auxiliary trolley for electricity inspection, which is provided with a telescopic rod and a T-shaped nail for supporting the balance of the trolley, which ensures the good stability of the trolley when conducting electricity inspection on uneven ground, and improves the working efficiency of electricity inspection and the inspection process. Electrical safety.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a top view of the utility model.

FIG. 3 is a schematic structural diagram of the upper hollow tube part of the utility model.

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, some parts of the drawings are omitted, enlarged or reduced, which do not represent the size of the actual product;

It will be understood by those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

Below in conjunction with the accompanying drawings and embodiments, the technical scheme of the present utility model will be further described when it is used in the work of 500kV power inspection in a substation.

Example 1

As shown in Figure 1, the electric inspection auxiliary trolley used for the electric test pen in the substation includes a hollow tube, a support rod and a trolley body. The hollow tube includes an upper hollow tube 11 and a lower hollow tube 12. The electric pencil passes through the upper hollow tube 11 and the lower hollow tube 12 at the same time. The upper hollow tube 11 and the lower hollow tube 12 are used to fix the electroscope. In this embodiment, there are three support rods, including the first support rod 21, the second The support rod 23 and the third support rod 22, the trolley body includes a hand-push beam 3, a base and a push-back frame 4, and the lower side of the base is provided with a plurality of wheels for moving. The front wheel adopts universal wheel 81, which realizes 360° rotation and moves the electric inspection auxiliary trolley, which is convenient to adjust the horizontal direction of electric inspection. The rear wheel of the base adopts the ladder wheel 82. When the electric inspection work site is not on the same level, the ladder of the rear wheel of the base is used. The wheels 82 are convenient for going up and down the stairs. The left and right sides of the base are provided with telescopic rods. The push-back frame 4 of the trolley body is provided with a storage basket 5 for placing insulating gloves. See Figure 1. The trolley base includes a front beam 61 and a rear beam. 64. The left beam 62, the right beam 63 and the middle beam, one end of the middle beam of the base is fixed to the left beam 62 of the base, the other end is fixed to the right beam 63 of the base, and the lower end hollow tube 12 is fixed to the center of the middle beam 3, the same end of the first support rod 21, the second support rod 23 and the third support rod 22 are alternately fixed on the outer peripheral surface of the upper end hollow tube 11, and the opposite first support rod 21 has another One end is fixed to the center of the upper cross bar 41 of the push-back frame, the other end of the second support rod 23 is fixed to the left end of the front cross beam 62 of the base, and the other end of the third support rod 22 is fixed to the front cross beam 62 of the base At the right end of the pen, through the support of three support rods, it is ensured that the center of gravity of the entire electroscope is consistent with the center of gravity of the electroscope auxiliary trolley.

Referring to Figures 1 and 2, the side surfaces of the upper hollow tube 11 and the lower hollow tube 12 of the hollow tube are provided with a rotating hole 17 and a thumb screw 10 matching the rotating hole 17. The thread on the inner side of the rotating hole 17 Matching with the thread of the wing screw 10, the wing screw 10 is connected with the hollow tube through the rotating hole 17, and the front end surface of the wing screw is provided with an insulating member 101; the interior of the upper hollow tube 11 and the lower hollow tube 12 are provided with insulation The rubber layer 71, the outer peripheral surface of the insulating rubber layer 71 is fixedly connected with the inner peripheral surface of the hollow tube, and the side peripheral surface of the insulating rubber layer 71 is provided with a rotation hole 17 in the same position and in the same direction as the side peripheral surface of the hollow tube , the thumb screw on the side of the hollow tube is connected to the insulating rubber layer 71 through the rotating hole 17 of the hollow tube and the rotating hole 17 of the insulating rubber layer 71 at the same time, and the central axes of the upper hollow tube 11 and the lower hollow tube 12 are collinear. When the electrical work is in progress, the electroscope passes through the upper and lower hollow tubes at the same time, and by rotating the thumbscrew 10, the contact tightness between the front end of the thumbscrew 10 and the outer peripheral surface of the electroscope is adjusted, thereby fixing the electroscope.

2, the middle beam of the base includes a first beam 73 and a second beam 72. One end of the first beam 73 is fixed to the left beam 62 of the base, and the other end is fixed to the right beam 63 of the base. One end is fixed to the left beam 62 of the base, and the other end is fixed to the right beam 63 of the base. The first beam 73 and the second beam 72 are arranged in parallel, and the distance between the first beam 73 and the second beam 72 is insulated from the The length of the inner diameter of the rubber layer 71 is the same, which facilitates the penetration of the lower end of the electroscope.

Example 2

As shown in FIG. 2 , in this embodiment, telescopic rods are provided on both sides of the trolley body of the electric test auxiliary trolley used for the electric test pen in the substation. The T-shaped nails 9 for the balance of the trolley, the lower side of the wing support rod 16 is provided with a plurality of wheels for moving. To the effect of the balancing moment, the T-shaped nail 9 is connected with the wing support rod 16 through the fixing nut 91 provided on the edge side of the wing support rod 16, and the thread on the side of the T-shaped nail 9 is matched with the thread of the fixing nut 91, When the electricity inspection is in progress, especially when the electricity inspection is performed on uneven ground, the distance between the T-shaped nail 9 and the ground can be adjusted by rotating the T-shaped nail 9, and the balance of the electric inspection auxiliary trolley on the non-horizontal surface is supported.

As shown in FIG. 2 , the side of the left beam 62 of the base is provided with two conducting holes 13 , and the side of the right beam 63 is also provided with two conducting holes, and the distance between the centers of the two conducting holes 13 of the left beam 62 is less than The distance between the centers of the two through holes of the right beam 63, the diameter of the telescopic front piece 14 of the telescopic rod is smaller than the diameter of the through hole 13, so that the telescopic front piece 14 of the telescopic rod can pass through the left and right beams of the base The through hole 13 on the side penetrates into the interior of the base, the length of the telescopic front piece 14 is the same as the distance between the left and right beams of the base, and the telescopic front piece 14 of the left and right telescopic rods after penetrating into the interior of the base The front ends will not hinder each other during the shrinking process, ensuring the normal retraction of the telescopic rods on the left and right sides of the base at the end of the power inspection: when the telescopic front piece 14 of the telescopic rod on the left side of the base penetrates into the base through the conduction hole 13 on the side of the left beam 62 When the front end surface 15 of the telescopic front piece 14 is just connected to the side of the right beam 63; The front end surface 15 of the leading edge piece 14 just abuts the side surface of the left cross beam 62 . The telescopic rod is in a retracted state during non-working periods and does not occupy extra space.

The same or similar reference numbers correspond to the same or similar parts;

The positional relationship described in the accompanying drawings is only used for exemplary illustration, and should not be construed as a limitation on this patent; the orientation words such as "front, rear, left, right" mentioned in the above embodiments are only for clearer The positional relationship of each part in the drawings of the present utility model is described in a simple manner, and is not intended to limit the embodiments of the present utility model.

For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims (10)

1. a kind of auxiliary trolley for electricity examination for electric test pen in substation, comprising hollow tube, several support rods and trolley body for supporting hollow tube, it is characterized in that: one end of described support rod is fixed on described hollow tube On the outer peripheral surface of the trolley, the other end is fixed to the trolley body. 2. the electric examination auxiliary trolley for the electric test pen of the substation according to claim 1, is characterized in that, described hollow tube comprises upper end hollow tube and lower end hollow tube, and described trolley body comprises hand-push beam, base and rear A push frame, a plurality of wheels for moving are arranged on the lower side of the base, telescopic rods are provided on both sides of the base, and a basket is provided on the push-back frame of the trolley body; the telescopic rods include A telescopic front piece, a wing support rod that can be extended to both sides, and a T-shaped nail for supporting the balance of the trolley, the lower side of the wing support rod is provided with a plurality of wheels for moving, and the T-shaped nails pass through The fixing nut provided on the edge side of the wing support rod is connected with the wing support rod. 3. the electric examination auxiliary trolley for the electric test pen of a substation according to claim 2, is characterized in that, the two sides of the base are provided with two conducting holes, and the center of the two conducting holes of one side side is the center of the circle. The distance between them is smaller than the distance between the centers of the two through holes on the other side, the diameter of the telescopic front piece of the telescopic rod is smaller than the diameter of the through hole, and the telescopic front piece of the telescopic rod passes through the sides of the base. The via hole penetrates into the interior of the base. 4. the electric examination auxiliary trolley for the electric test pen of a substation according to claim 3, is characterized in that, the length of described telescopic front piece is the same as the distance between the two sides of the base, when the telescopic rod on one side is the same as the distance between the two sides of the base When the telescopic front piece of the telescopic rod penetrates into the interior of the base through the through hole on the side, the front end face of the telescopic front piece is just abutting with the opposite side of the base; When the hole penetrates into the interior of the base, the front end surface of the telescopic front piece is just abutted with the opposite side of the base. 5. the electric examination auxiliary trolley for the electric test pen of the substation according to claim 2, is characterized in that, the side perimeter surface of the upper end hollow tube and the lower end hollow tube of the described hollow tube is all provided with a revolving hole and a revolving hole For the matching thumb screw, the thread on the inner side of the rotation hole matches the thread of the thumb screw, the thumb screw is connected with the hollow tube through the rotation hole, and the front end surface of the thumb screw is provided with an insulating member. 6. the electric examination auxiliary trolley for the electric test pen of a substation according to claim 5, is characterized in that, the inside of described upper hollow tube and lower end hollow tube is all provided with insulating rubber layer, and the outer periphery of described insulating rubber layer is provided with insulating rubber layer. The surface is fixedly connected with the inner peripheral surface of the hollow tube. 7. The electric test auxiliary trolley for a substation electric test pen according to claim 6, characterized in that, the side peripheral surface of the insulating rubber layer is provided with the same position and the same direction as the corresponding position on the side peripheral surface of the hollow tube. A rotation hole, the thumb screw on the side of the hollow tube passes through the rotation hole of the hollow tube and the rotation hole of the insulating rubber layer at the same time to be connected with the insulating rubber layer. 8 . The electric test auxiliary trolley for a substation electric test pen according to claim 6 , wherein the central axes of the upper hollow tube and the lower hollow tube are collinear. 9 . 9. The electric test auxiliary trolley for the electric test pen of a substation according to claim 6, wherein the middle of the base is provided with a first beam and a second beam, and the first beam and the second beam are arranged in parallel . 10 . The electric test auxiliary trolley for a substation electric test pen according to claim 9 , wherein the distance between the first beam and the second beam is the same as the length of the inner diameter of the insulating rubber layer. 11 .

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