CN212622811U

CN212622811U - Safe type insulation resistance testing arrangement

Info

Publication number: CN212622811U
Application number: CN202020503404.3U
Authority: CN
Inventors: 徐永新
Original assignee: Suzhou Qunjin Precision Machinery Technology Co ltd
Current assignee: Suzhou Qunjin Precision Machinery Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-02-26
Anticipated expiration: 2030-04-08

Abstract

The utility model belongs to the technical field of resistance test device, especially, be a safe type insulation resistance testing arrangement, which comprises an outer shell, the top fixed mounting of shell has positive electrode connector and negative electrode connector, and the inner chamber fixed mounting of shell has high-voltage tester, and the middle part gomphosis of shell top surface is connected with two stand pipes, and equal activity gomphosis has the lifter in two stand pipes, the insulating cross arm of bottom fixedly connected with of two lifters, the conductive contact of both ends fixedly connected with of insulating cross arm. The utility model discloses during the use, connect positive connector and negative pole connector and examine the circuit, operating handle drives the ratch and rises under the pressure, and the ratch drives insulating cross arm and conductive contact through transverse connecting rod and lifter and rises, and conductive contact guides the high-voltage testing current that the high-voltage tester was derived to the circuit that is connected with two electrodes and is detected, and two electrodes are kept away from to operating personnel's hand at this in-process, consequently can not receive high-voltage electric shock.

Description

Safe type insulation resistance testing arrangement

Technical Field

The utility model relates to a resistance test technical field specifically is a safe type insulation resistance testing arrangement.

Background

The insulation resistance meter is a detection instrument which is used for detecting insulation resistance of a large number of transformers, motors, cables, switches, electrical equipment and insulation materials, has important significance for ensuring the product quality and the safety of people and equipment in operation, and the insulation performance of electrical products is one of important marks for evaluating the insulation quality of the electrical products, is reflected by the insulation resistance, is suitable for insulation test in the maintenance, test and verification of various electrical equipment, and has uniform and clear insulation resistance dividing lines and convenient accurate reading; the high-voltage insulation resistance high-voltage tester mainly comprises three parts, namely a direct-current high-voltage generator for generating direct-current high voltage, a measurement loop and a display; the high voltage generator for measuring insulation resistance must apply a high voltage at the measuring end, the high voltage value is specified as 50V, 100V, 250V, 500V, 1000V, 2500V and 5000V in the national standard of insulation resistance table, and there are three general methods for generating the high voltage. A first hand generator type; the second is to obtain direct current high voltage by boosting and rectifying the voltage of the commercial power transformer; the third method is to use transistor oscillation or special pulse width modulation circuit to generate DC high voltage, and the insulation resistance meter of battery type and commercial power type is adopted.

The current insulation resistance testing device has the following problems:

1. when the existing insulation resistance testing device is operated, workers are easily subjected to high-voltage electric shock, so that safety accidents are caused;

2. the existing insulation resistance testing device has no explosion-proof and flame-retardant functions.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a safe type insulation resistance testing arrangement has solved the electric shock that present insulation resistance testing arrangement when operating staff received high-voltage electricity easily to and do not possess the problem of explosion-proof and fire-retardant function.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a safe insulation resistance testing device comprises a shell, wherein an anode connector and a cathode connector are fixedly mounted at the top end of the shell, a high-voltage tester is fixedly mounted in an inner cavity of the shell, two guide tubes are connected to the middle of the top surface of the shell in an embedded manner, lifting rods are movably embedded in the two guide tubes, two insulating cross arms are fixedly connected to the bottom ends of the lifting rods, conductive contacts are fixedly connected to the two ends of each insulating cross arm, the bottom ends of the two conductive contacts are electrically connected with a main output end of the high-voltage tester through flexible wires, the top ends of the two conductive contacts intermittently abut against the anode connector and the cathode connector, a transverse connecting rod is fixedly mounted at the top ends of the two lifting rods, a toothed bar is fixedly connected to the middle of the top end of the transverse connecting rod, and an operating handle is mounted on one side of the top surface, one end of the operating handle is fixedly connected with a sector gear, and the sector gear is meshed with the toothed bar.

As an optimized technical scheme of the utility model, the high-voltage tester contains battery, boost inductor and contrast circuit.

As an optimal technical scheme of the utility model, the display screen is installed to the positive gomphosis of shell, contrast circuit electric connection the display screen.

As an optimized technical scheme of the utility model, two the spring has been concatenated at the middle part of lifter.

As an optimized technical scheme of the utility model, the inner wall laminating of shell has explosion-proof insulating layer.

As an optimized technical scheme of the utility model, the other end of operating handle has cup jointed insulation support.

(III) advantageous effects

Compared with the prior art, the utility model provides a safe type insulation resistance testing arrangement possesses following beneficial effect:

1. this safe type insulation resistance testing arrangement is connected positive connector and negative connector and is examined the circuit, presses operating handle and drives the ratch and rise, and the ratch passes through transverse connecting rod and lifter and drives insulating cross arm and conductive contact and rise, and conductive contact guides the high-voltage test current that the high-voltage tester was led out to the circuit that is detected with being connected with two electrodes, and two electrodes are kept away from to operating personnel's hand at this in-process, consequently can not receive the high-voltage electric shock.

2. This safe type insulation resistance testing arrangement, the inner wall laminating of shell has explosion-proof insulating layer, and explosion-proof insulating layer adopts cement layer or ceramic composite bed, has multiple efficiency such as insulating and explosion-proof to carry out high voltage insulation to all kinds of high-voltage apparatus that contain wherein, and separate flame, electric arc when its burning.

Drawings

FIG. 1 is a schematic view of the subjective structure of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

fig. 3 is a schematic side sectional view of the present invention.

In the figure: 1. a housing; 2. a positive electrode connector; 3. a negative electrode connector; 4. a high voltage tester; 5. a guide tube; 6. a lifting rod; 7. an insulating cross arm; 8. a conductive contact; 9. a transverse connecting rod; 10. a rack bar; 11. A support; 12. an operating handle; 13. a sector gear; 14. a display screen; 15. a spring; 16. an explosion-proof insulating layer; 17. an insulating sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a safe insulation resistance testing device comprises a shell 1, an anode connector 2 and a cathode connector 3 are fixedly installed at the top end of the shell 1, a high-voltage tester 4 is fixedly installed in an inner cavity of the shell 1, two guide tubes 5 are connected to the middle portion of the top surface of the shell 1 in an embedded mode, lifting rods 6 are movably embedded in the two guide tubes 5, insulating cross arms 7 are fixedly connected to the bottom ends of the two lifting rods 6, conductive contacts 8 are fixedly connected to the two ends of each insulating cross arm 7, the bottom ends of the two conductive contacts 8 are electrically connected with a main output end of the high-voltage tester 4 through flexible wires, the top ends of the two conductive contacts 8 intermittently abut against the anode connector 2 and the cathode connector 3, a transverse connecting rod 9 is fixedly installed at the top ends of the two lifting rods 6, a toothed bar 10 is fixedly connected to the middle portion of the top end of the transverse connecting rod 9, and an, one end of the operating handle 12 is fixedly connected with a sector gear 13, and the sector gear 13 is meshed with the toothed bar 10.

In this embodiment, the high voltage tester 4 adopts an RK2670AM ac withstand voltage tester, and can detect a high voltage of 50KV, when performing the detection, first electrically connect the positive connector 2 and the negative connector 3 to a circuit to be detected, then press down the operating handle 12, the operating handle 12 drives the toothed bar 10 to ascend through the sector gear 13, the toothed bar 10 is connected with the two ascending/descending bars 6 to ascend through the transverse connecting rod 9, and further drives the insulating cross arm 7 and the conductive contacts 8 at the two ends to ascend, at this time, the two conductive contacts 8 simultaneously contact the positive connector 2 and the negative connector 3, guide the high voltage test current guided out by the high voltage tester 4 to the circuit to be detected connected with the positive connector 2 and the negative connector 3, thereby implementing the electrical connection between the high voltage tester 4 and the circuit to be detected, during this process, the hand of the operator is far away from the positive connector 2 and the negative connector 3, and thus is not subjected to high voltage shocks.

Specifically, the high-voltage tester 4 includes a battery, a boost inductor, and a comparison circuit.

In this embodiment, the comparison circuit uses an SMT32F03 MCU chip, and a corresponding detection program is recorded therein, and the comparison circuit has signal analysis and calculation functions, outputs a transportation result through its own output port, and compares the calculation result with its own stored data.

Specifically, the front surface of the housing 1 is provided with a display 14 in an embedded manner, and the comparison circuit is electrically connected with the display 14.

In this embodiment, the display screen 14 is a ZS-09 high-definition touch screen, which can accurately display the high-voltage resistance value measured by the high-voltage tester 4.

Specifically, the middle parts of the two lifting rods 6 are connected with springs 15 in series.

In this embodiment, the springs 15 are connected in series between the middle portions of the two lifting rods 6, the springs 15 elastically abut against the inner top wall of the housing 1 and the insulating cross arm 7, so that the insulating cross arm 7 and the conductive contact 8 are normally away from the positive connector 2 and the negative connector 3, the elastic force of the springs 15 cannot be overcome until the conductive contact is manually operated during use, and the high-voltage tester 4, the positive connector 2 and the negative connector 3 are electrically connected into a whole.

Specifically, an explosion-proof insulating layer 16 is bonded to the inner wall of the housing 1.

In this embodiment, the explosion-proof insulating layer 16 is attached to the inner wall of the housing 1, and the explosion-proof insulating layer 16 is a cement layer or a ceramic composite layer, and has multiple effects of insulation, explosion prevention and the like, so as to insulate various high-voltage electrical appliances contained therein at high voltage and insulate flame and electric arc during combustion.

Specifically, the other end of the operating handle 12 is sleeved with an insulating sleeve 17.

In this embodiment, the other end of the operating handle 12 is sleeved with an insulating sleeve 17, so that the hand of the operator can further isolate the high voltage electricity.

The high-voltage tester 4 in this embodiment is a known technology that has been disclosed to be widely used in industrial production and daily life.

The utility model discloses a theory of operation and use flow: firstly, the positive connector 2 and the negative connector 3 are electrically connected to a circuit to be detected, then the operating handle 12 is pressed down, the operating handle 12 drives the toothed bar 10 to ascend through the sector gear 13, the toothed bar 10 is connected with the two lifting rods 6 to ascend through the transverse connecting rod 9, and further drives the insulating cross arm 7 and the conductive contacts 8 at the two ends of the insulating cross arm to ascend, at the moment, the two conductive contacts 8 simultaneously contact the positive connector 2 and the negative connector 3, high-voltage test current led out by the high-voltage tester 4 is led to the circuit to be detected connected with the positive connector 2 and the negative connector 3, therefore, the electrical connection of the high-voltage tester 4 and the circuit to be detected is realized, the hand of an operator is far away from the positive connector 2 and the negative connector 3 in the process, and therefore the high-voltage electric.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a safe type insulation resistance testing arrangement, includes shell (1), its characterized in that: the top end of the shell (1) is fixedly provided with an anode connector (2) and a cathode connector (3), the inner cavity of the shell (1) is fixedly provided with a high-voltage tester (4), the middle part of the top surface of the shell (1) is embedded with two guide pipes (5), two guide pipes (5) are embedded with lifting rods (6) in an all-movable manner, the bottom end of each lifting rod (6) is fixedly connected with an insulating cross arm (7), two ends of each insulating cross arm (7) are fixedly connected with conductive contacts (8), the bottom ends of the two conductive contacts (8) are electrically connected with the main output end of the high-voltage tester (4) through flexible wires, the top ends of the two conductive contacts (8) are intermittently abutted against the anode connector (2) and the cathode connector (3), and two top ends of the lifting rods (6) are fixedly provided with transverse connecting rods (9), middle part fixedly connected with ratch (10) on horizontal connecting rod (9) top, operating handle (12) are installed through support (11) to one side of shell (1) top surface, the one end fixedly connected with sector gear (13) of operating handle (12), sector gear (13) meshing ratch (10).

2. The safety insulation resistance testing device according to claim 1, wherein: the high voltage tester (4) comprises a battery, a boost inductor and a comparison circuit.

3. The safety insulation resistance testing device according to claim 2, characterized in that: the front surface of the shell (1) is embedded with a display screen (14), and the comparison circuit is electrically connected with the display screen (14).

4. The safety insulation resistance testing device according to claim 1, wherein: the middle parts of the two lifting rods (6) are connected with springs (15) in series.

5. The safety insulation resistance testing device according to claim 1, wherein: and an explosion-proof insulating layer (16) is attached to the inner wall of the shell (1).

6. The safety insulation resistance testing device according to claim 1, wherein: the other end of the operating handle (12) is sleeved with an insulating sleeve (17).