CN220271546U - Self-checking standard for calibrating power cable fault locator by bridge method - Google Patents

Abstract

The utility model discloses a self-checking standard for calibrating a power cable fault positioning instrument by a bridge method, which relates to the technical field of electrical equipment and comprises a standard main body and a rotating frame, wherein the rotating frame is rotationally sleeved in the standard main body; the fixed rod is fixedly arranged on one side of the upper surface of the rotary frame, the transverse plate is fixedly arranged at the upper end of the fixed rod, the sliding groove is formed in the surface of the transverse plate, the sliding block is arranged in the sliding groove in a sliding mode, and the fan is fixedly arranged on the upper surface of the sliding block. The utility model has good heat radiation performance and can ensure the stable operation of the internal elements of the equipment.

Description

Self-checking standard for calibrating power cable fault locator by bridge method

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a self-checking standard for calibrating a power cable fault locator by a bridge method.

Background

The electric bridge method power fault locator is used for judging, analyzing and locating the fault property characteristics of the measured cable, and the measured direct current resistance or resistance ratio can be used for locating the length or length ratio of the uniform cable by utilizing the balance bridge principle. How to ensure the measurement accuracy of the positioning instrument, the instrument needs to be calibrated or detected under the specified necessary conditions of calibration/detection methods, instrument equipment, environmental conditions and the like according to the verification rules or technical files issued by the country or industry.

The traditional self-checking standard for calibrating the bridge method power cable fault locator can generate larger heat in the self-checking standard when in use, and the self-checking standard is only used for radiating by flowing air in the self-checking standard, so that the heat radiating efficiency is low, and the internal element faults can be caused after the self-checking standard is used for a long time, so that the normal use is influenced.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems with the existing self-test standard for calibrating a bridge-method power cable fault locator.

Therefore, the utility model aims to provide a self-checking standard for calibrating a bridge-method power cable fault locator, which solves the problems in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the self-checking standard for calibrating the bridge method power cable fault positioning instrument comprises a standard main body and a rotating frame, wherein the rotating frame is rotationally sleeved in the standard main body, a first dust screen is fixedly arranged in the rotating frame, a U-shaped plate is arranged on the lower surface of the first dust screen in a propping mode, two ends of the U-shaped plate are fixedly connected with the lower surface of the standard main body, and a first transmission mechanism for driving the rotating frame to rotate is arranged on the inner side of the U-shaped plate;

the fixed pole that is provided with of upper surface one side of rotatory frame, the fixed diaphragm that is provided with of upper end of dead lever, the spout has been seted up on the surface of diaphragm, the inside slip of spout is provided with the slider, the upper surface fixed of slider is provided with the fan, the inside of standard ware main part is provided with the drive the second drive mechanism that the fan removed.

Preferably, the first transmission mechanism comprises a worm wheel and a worm, the worm wheel is fixedly sleeved on the outer wall of the rotary frame, the worm is meshed with the rear side of the worm wheel, two ends of the worm are rotatably connected with the inner wall of the corresponding U-shaped plate, a motor is fixedly arranged on one side of the U-shaped plate, and the output end of the motor is fixedly connected with one end of the worm.

Preferably, the second transmission mechanism comprises a reciprocating screw rod and a spur gear, the reciprocating screw rod is rotationally arranged in the sliding groove, one end of the sliding block is sleeved with threads of the reciprocating screw rod, one end of the reciprocating screw rod extends to the outer side of the sliding groove, the spur gear is fixedly sleeved at one end of the outer side of the reciprocating screw rod, a crown gear ring is arranged at the bottom end of the inner portion of the standard body in a fixed mode, and the spur gear is meshed with the crown gear ring.

Preferably, both sides of the sliding block are in contact with the inner wall of the sliding groove.

Preferably, the motor is fixedly connected with the side wall of the U-shaped plate through a supporting frame.

Preferably, a rubber pad is fixedly arranged on the inner side of the U-shaped plate.

Preferably, the two sides of the standard body are provided with exhaust ports.

Preferably, a second dust screen is fixedly arranged in the exhaust port.

Preferably, supporting feet are fixedly arranged on two sides of the lower surface of the standard body.

In the technical scheme, the utility model has the technical effects and advantages that:

1. according to the utility model, the worm is driven by the motor to rotate, the worm drives the worm wheel to rotate, namely the rotating frame can be driven to rotate, the fan is driven by the rotating frame to rotate, and meanwhile, the spur gear is driven to revolve relative to the crown gear ring which is fixedly arranged, namely the spur gear rotates to drive the reciprocating screw rod to rotate, namely the sliding block is driven to reciprocate, namely the fan rotates and simultaneously moves along with the sliding block in a reciprocating manner, so that the inside of the standard device can be comprehensively and uniformly radiated.

2. According to the utility model, the first dust screen is driven to rotate relative to the U-shaped plate when the rotating frame rotates, namely, the U-shaped plate scrapes and cleans the surface of the first dust screen, so that the dust screen can be ensured to be smooth, namely, the smooth flow of the cavity in the standard device is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a self-test standard for calibrating a bridge power cable fault locator according to the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

fig. 3 is a schematic top view of the cross plate of fig. 2.

Reference numerals illustrate:

1. a etalon body; 2. a rotating frame; 3. a first dust screen; 4. a U-shaped plate; 5. a worm wheel; 6. a worm; 7. a motor; 8. a second dust screen; 9. a fixed rod; 10. a cross plate; 11. a reciprocating screw rod; 12. a slide block; 13. a fan; 14. spur gears; 15. crown ring.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a self-checking standard for calibrating a power cable fault locator by a bridge method.

Example 1

Referring to fig. 1-3, a self-checking standard for calibrating a bridge method power cable fault positioning instrument comprises a standard main body 1 and a rotary frame 2, wherein the rotary frame 2 is rotatably sleeved in the standard main body 1, a first dust screen 3 is fixedly arranged in the rotary frame 2, exhaust ports are formed in two sides of the standard main body 1, air in the standard main body 1 is convenient to flow, a second dust screen 8 is fixedly arranged in the exhaust ports, the dustproof performance of the exhaust ports is improved, supporting feet are fixedly arranged on two sides of the lower surface of the standard main body 1, the standard main body 1 can be supported, a rubber pad is fixedly arranged on the inner side of a U-shaped plate 4,U which is abutted against the lower surface of the first dust screen 3, scratches on the first dust screen 3 are prevented as much as possible, and two ends of the U-shaped plate 4 are fixedly connected with the lower surface of the standard main body 1;

the fixed pole 9 is fixed to upper surface one side of rotatory frame 2, and the upper end of fixed pole 9 is fixed to be provided with diaphragm 10, and the spout has been seted up on the surface of diaphragm 10, and the inside slip of spout is provided with slider 12, and the upper surface of slider 12 is fixed to be provided with fan 13.

Example two

Referring to fig. 1-3, the inside of the U-shaped board 4 is provided with a first transmission mechanism for driving the rotating frame 2 to rotate, the first transmission mechanism comprises a worm wheel 5 and a worm 6, the worm wheel 5 is fixedly sleeved on the outer wall of the rotating frame 2, the worm 6 is meshed with the rear side of the worm wheel 5, two ends of the worm 6 are both rotatably connected with the corresponding inner wall of the U-shaped board 4, one side of the U-shaped board 4 is fixedly provided with a motor 7, the output end of the motor 7 is fixedly connected with one end of the worm 6, and the motor 7 is fixedly connected with the side wall of the U-shaped board 4 through a supporting frame, so that the motor 7 is connected with the U-shaped board 4 more firmly.

Example III

Referring to fig. 1-3, a second transmission mechanism for driving a fan 13 to move is arranged in a standard body 1, the second transmission mechanism comprises a reciprocating screw rod 11 and a spur gear 14, the reciprocating screw rod 11 is rotatably arranged in a chute, one end of a sliding block 12 is sleeved with threads of the reciprocating screw rod 11, one end of the reciprocating screw rod 11 extends to the outer side of the chute, the spur gear 14 is fixedly sleeved at one end of the outer side of the reciprocating screw rod 11, a crown gear ring 15 is fixedly arranged at the bottom end of the interior of the standard body 1, the spur gear 14 is meshed with the crown gear ring 15, and two sides of the sliding block 12 are in contact with the inner wall of the chute, so that the sliding block 12 cannot rotate, namely can stably slide.

In the utility model, when the standard device is used, the motor 7 drives the worm 6 to rotate, the worm 6 drives the worm wheel 5 to rotate, namely the rotating frame 2 can drive the fan 13 to rotate, and simultaneously the spur gear 14 is driven to revolve relative to the crown gear 15 which is fixedly arranged, namely the spur gear 14 rotates to drive the reciprocating screw rod 11 to rotate, namely the sliding block 12 is driven to reciprocate, namely the fan 13 rotates and simultaneously moves along with the sliding block 12 in a reciprocating manner, namely the inside of the standard device body 1 can be comprehensively and uniformly cooled, and the rotating frame 2 drives the first dust screen 3 to rotate relative to the U-shaped plate 4 when rotating, namely the U-shaped plate 4 scrapes and cleans the surface of the first dust screen 3, so that the smoothness of the dust screen 3 can be ensured, namely the smoothness of the flow of the cavity inside the standard device body 1 is ensured.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (9)

1. The utility model provides a but self-checking standard ware for calibrating bridge method power cable fault location appearance, includes standard main part (1) and rotatory frame (2), its characterized in that, rotatory frame (2) rotate the inside of overlapping and locate standard main part (1), the inside of rotatory frame (2) is fixed to be provided with first dust screen (3), the lower surface counterbalance of first dust screen (3) is provided with U template (4), the both ends of U template (4) all are fixedly connected with the lower surface of standard main part (1), the inboard of U template (4) is provided with drives rotatory frame (2) pivoted first drive mechanism;

the rotary frame is characterized in that a fixing rod (9) is fixedly arranged on one side of the upper surface of the rotary frame (2), a transverse plate (10) is fixedly arranged at the upper end of the fixing rod (9), a sliding groove is formed in the surface of the transverse plate (10), a sliding block (12) is arranged in the sliding groove in a sliding mode, a fan (13) is fixedly arranged on the upper surface of the sliding block (12), and a second transmission mechanism for driving the fan (13) to move is arranged in the standard body (1).

2. The self-checking standard for calibrating the bridge method power cable fault locator according to claim 1, wherein the first transmission mechanism comprises a worm wheel (5) and a worm (6), the worm wheel (5) is fixedly sleeved on the outer wall of the rotating frame (2), the worm (6) is meshed with the rear side of the worm wheel (5), two ends of the worm (6) are both rotationally connected with the inner wall of the corresponding U-shaped plate (4), a motor (7) is fixedly arranged on one side of the U-shaped plate (4), and the output end of the motor (7) is fixedly connected with one end of the worm (6).

3. The self-checking standard for calibrating the bridge method power cable fault locator according to claim 1, wherein the second transmission mechanism comprises a reciprocating screw rod (11) and a spur gear (14), the reciprocating screw rod (11) is rotatably arranged in the sliding groove, one end of the sliding block (12) is sleeved with threads of the reciprocating screw rod (11), one end of the reciprocating screw rod (11) extends to the outer side of the sliding groove, the spur gear (14) is fixedly sleeved at one end of the outer side of the reciprocating screw rod (11), a crown gear ring (15) is fixedly arranged at the bottom end of the inner side of the standard body (1), and the spur gear (14) is in meshed connection with the crown gear ring (15).

4. The self-test standard for calibrating a power cable fault locator according to claim 1, wherein both sides of the slider (12) are in contact with the inner wall of the chute.

5. The self-checking standard for calibrating a power cable fault locator according to claim 2, wherein the motor (7) is fixedly connected with the side wall of the U-shaped board (4) through a supporting frame.

6. The self-checking standard for calibrating a power cable fault locator according to claim 1, wherein the inside of the U-shaped plate (4) is fixedly provided with a rubber pad.

7. The self-checking standard for calibrating a power cable fault locator according to claim 1, wherein both sides of the standard body (1) are provided with exhaust ports.

8. Self-test standard for calibrating a power cable fault locator according to claim 7, characterized in that the inside of the exhaust port is fixedly provided with a second dust screen (8).

9. The self-checking standard for calibrating a power cable fault locator according to claim 1, wherein supporting feet are fixedly arranged on both sides of the lower surface of the standard body (1).