CN210142144U

CN210142144U - A testing arrangement for insulation resistance

Info

Publication number: CN210142144U
Application number: CN201921926660.7U
Authority: CN
Inventors: 黎健南; 谢儒铭; 赵香芳; 王通; 吴祥任
Original assignee: Hainan Botest Measurement And Testing Technology Co Ltd
Current assignee: Hainan Botest Measurement And Testing Technology Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-03-13
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a testing device for insulation resistance, which comprises a machine body and two leads connected with clamping heads; the hand-operated electric power tool also comprises a rotating rod, a winding and a hand-operated handle, wherein the rotating rod is rotatably arranged in the machine body, the winding is sleeved on the rotating rod, a wire is wound on the winding, a contact is arranged in the machine body and abuts against one side of the winding, and the hand-operated handle is connected to one end of the rotating rod; the rotating rod is provided with a rectangular groove, a first spring and a protrusion, one end of the first spring is connected to the bottom of the rectangular groove, the other end of the first spring is connected to the protrusion, the winding is provided with a guide groove, and the protrusion enters the guide groove through the rotation of the rotating rod, so that the winding is driven to rotate clockwise; through setting up bull stick and winding to realize that the bull stick clockwise rotates and accomodate the wire, thereby the amount that stretches out of control wire reduces the long wire winding that causes of span at insulation resistance measuring in-process wire and influences measurement of efficiency, with the efficiency that improves insulation resistance detection, and reduced the long-time exposed wearing and tearing of wire.

Description

A testing arrangement for insulation resistance

Technical Field

The utility model relates to an insulation resistance test technical field, concretely relates to a testing arrangement for insulation resistance.

Background

Insulation resistance testing and detection are widely applied to maintenance of electrical equipment or electric equipment; the existing insulation resistance testing device is used for testing insulation resistance by externally connecting two wires on a machine body and contacting electrical equipment or electric equipment through a magnetic joint or a clamp on the wires; however, the tested devices are different in size and distance, so that the span of the lead is generally long, when small electric devices are measured, the lead is long in span and easy to wind, the length of the lead cannot be effectively controlled, the lead is not suitable for operation at a high place, the lead needs to be wound on a machine body when the lead is taken up after the test is finished, and the lead is exposed for a long time, so that the abrasion is easily caused, and the inconvenience of operation is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the weak point that exists in the above-mentioned technique, provide a testing arrangement for insulation resistance, aim at solving the problem that above-mentioned insulation resistance test can not receive the line and control length of being qualified for the next round of competitions.

The utility model provides a testing device for insulation resistance, which comprises a machine body and two leads connected with clamping heads; the hand-operated electric power tool also comprises a rotating rod, a winding and a hand-operated handle, wherein the rotating rod is rotatably arranged in the machine body, the winding is sleeved on the rotating rod, a wire is wound on the winding, a contact is arranged in the machine body and abuts against one side of the winding, and the hand-operated handle is connected to one end of the rotating rod; be equipped with rectangular channel, first spring and arch on the bull stick, the one end of first spring is connected in the bottom of rectangular channel, and the other end of first spring is connected in the arch, is equipped with the guide way on the winding, and the arch rotates in order to get into the guide way through the bull stick to drive the winding and carry out clockwise rotation.

Further, the windings comprise a first winding and a second winding, the rotor comprises a first rotor and a second rotor, the first winding is provided on the first rotor, and the second winding is provided on the second rotor.

Furthermore, a clamping groove is formed in the machine body, a clamping part is arranged on the machine body through hand cranking, and the clamping part is matched with the clamping groove to lock the rotating rod.

Furthermore, the section of the upper end of the protrusion is of a triangular structure or a fan-shaped structure, and the inclined surface or the cambered surface of the protrusion is arranged anticlockwise along the rotating rod.

Furthermore, one end of the first rotating rod is provided with a first gear ring, one end of the second rotating rod is provided with a second gear ring, the end part of the first rotating rod is further provided with a limiting rod, the end part of the second rotating rod is further provided with a limiting hole, and the limiting rod is in sliding fit with the limiting hole so that the first gear ring is meshed with the second gear ring.

Furthermore, the winding device also comprises blocking pieces, wherein the blocking pieces are respectively connected to two sides of the winding, the blocking pieces are made of conductive metal, and the conducting wires are respectively and electrically connected to the blocking pieces.

Furthermore, the device also comprises a conducting rod and a second spring, wherein the conducting rod is arranged in the machine body, one end of the second spring is connected to the conducting rod, and the other end of the second spring is connected to the contact.

The utility model discloses relative prior art has following beneficial effect:

the rotary rod and the winding are arranged, so that the rotary rod rotates clockwise to accommodate the wire, the extension amount of the wire is controlled, the influence of wire winding caused by the long span of the wire on the measurement efficiency in the insulation resistance measurement process is reduced, the insulation resistance detection efficiency is improved, and the abrasion of the wire exposed for a long time is reduced; simultaneously, the winding is through the in-process that clockwise rotation pulled out the wire, and the bull stick can remain motionless to the winding that realizes on two wires can carry out relative rotation, thereby realizes that the pulling out volume of two wires is different, with the nimble control of the volume of improving the wire pulling out, avoids carrying out the problem that insulation resistance detected need pull out two wires simultaneously to less equipment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic view of a testing apparatus for insulation resistance according to the present invention;

fig. 2 is a schematic view of a rotating rod of the testing device for insulation resistance according to the present invention;

fig. 3 is a schematic diagram of a winding and rotating rod of the testing device for insulation resistance according to the present invention;

fig. 4 is a schematic diagram illustrating a first gear ring and a second gear ring of the testing apparatus for insulation resistance according to the present invention being disengaged from each other;

fig. 5 is a schematic raised view of a device for testing insulation resistance according to the present invention;

fig. 6 is a partial enlarged view of a contact point of the testing device for insulation resistance according to the present invention.

In the figure, 1-body; 2-a clamping head; 3-a wire; 4-rotating the rod; 5-coil; 6-hand shaking; 7-contact; 8-a rectangular groove; 9-a first spring; 10-bump; 11-a guide groove; 12-a limiting rod; 13-a limiting hole; 14-a conductive rod; 15-a second spring; 20-a baffle plate; 30-a card slot; 41-a first rotating rod; 42-a second rotating rod; 51-the first coil; 52-second coil; 61-a clamping part; 411 — first ring gear; 421-second ring gear.

Detailed Description

In order to make the structure and features and advantages of the present invention easier to understand, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

example 1:

as shown in fig. 1 to 6, the utility model provides a testing device for insulation resistance, which comprises a machine body 1 and two wires 3 connected with a clamping head 2; the hand crank type winding machine further comprises a rotating rod 4, a winding coil 5 and a hand crank 6, wherein the rotating rod 4 can be rotatably arranged in the machine body 1, the winding coil 5 is sleeved on the rotating rod 4, and the inner diameter of the winding coil 5 is larger than the diameter of the rotating rod 4, so that the winding coil 5 is in clearance fit with the rotating rod 4; the lead 3 is wound on the winding 5, a contact 7 is arranged in the machine body 1, the contact 7 is abutted against one side of the winding 5, one side of the winding 5 is made of a conductive metal material, and the hand crank 6 is hinged at one end of the rotating rod 4; the rotating rod 4 is provided with a rectangular groove 8, a first spring 9 and a protrusion 10, one end of the first spring 9 is connected to the bottom of the rectangular groove 8, the other end of the first spring 9 is connected to the protrusion 10, the winding 5 is provided with a guide groove 11, and the protrusion 10 rotates clockwise through the rotating rod 4 to enter the guide groove 11, so that the winding 5 is driven to rotate clockwise; when the rotating rod 4 rotates anticlockwise, the protrusion 10 is disengaged from the guide groove 11, and the rotating rod 4 rotates anticlockwise and cannot drive the winding 5 to move together, so that the winding 5 can rotate anticlockwise independently relative to the rotating rod 4, and a wire 3 in the two windings 5 can be pulled out of the machine body 1 independently in the using process.

By adopting the technical scheme, the rotating rod 4 and the winding 5 are arranged to realize that the rotating rod 4 rotates clockwise to accommodate the wire 3, so that the extension amount of the wire 3 is controlled, the influence of the winding of the wire 3 caused by the long span of the wire 3 on the measurement efficiency is reduced in the insulation resistance measurement process, the insulation resistance detection efficiency is improved, and the long-time exposed abrasion of the wire 3 is reduced; simultaneously, winding 5 is through the clockwise rotation in-process of pulling out wire 3, and bull stick 4 can remain motionless to realize that winding 5 on two wires 3 can carry out relative rotation, thereby realize that the pulling out volume of two wires 3 is different, in order to improve the nimble control to the pulling out volume of wire 3, avoid carrying out the problem that insulation resistance detected need pull out two wires 3 simultaneously to less equipment.

In particular, winding 5 comprises a first winding 51 and a second winding 52 to enable separate winding of the two wires 3; the rotary rod 4 comprises a first rotary rod 41 and a second rotary rod 42, a first coil 51 is arranged on the first rotary rod 41, and a second coil 52 is arranged on the second rotary rod 42, so that the first coil 51 and the second coil 52 can separately lead out the lead wire 3.

Specifically, be equipped with draw-in groove 30 on organism 1, be equipped with clamping part 61 on hand 6, clamping part 61 through with draw-in groove 30 cooperation to lock extremely to bull stick 4, can effectively reduce bull stick 4 and the problem of the dislocation appears at the in-process that does not receive the line, can also avoid winding 5 to drive bull stick 4 and rotate carrying out the in-process that counter-clockwise rotation pulled out wire 3 simultaneously.

Specifically, the section of the upper end of the protrusion 10 is of a triangular structure or a fan-shaped structure, and the inclined surface or the arc surface of the protrusion 10 is arranged along the counterclockwise direction of the rotating rod 4, so that the winding coil 5 can rotate independently in the counterclockwise direction, and the rotating rod 4 is not driven to rotate in the counterclockwise direction, so that the rotating rod 4 can only rotate clockwise to drive the winding coil 5 to rotate to take up the wire 3, and cannot drive the winding coil 5 to rotate to take out the wire in the counterclockwise direction, and the winding coil 5 can rotate to take out the wire in the counterclockwise direction independently of the rotating rod; and the first winding 51 and the second winding 52 can rotate counterclockwise independently, and the operation is to pull one of the wires 3 to drive the winding 5 to rotate counterclockwise for outgoing.

Specifically, one end of the first rotating rod 41 is provided with a first gear ring 411, one end of the second rotating rod 42 is provided with a second gear ring 421, the end of the first rotating rod 41 is further provided with a limiting rod 12, the end of the second rotating rod 42 is further provided with a limiting hole 13, and the limiting rod 12 is in sliding fit with the limiting hole 13 so that the first gear ring 411 is meshed with the second gear ring 421; specifically, when the first coil 51 needs to be rotated clockwise separately, the first rotating rod 41 is pulled upwards to separate the first ring gear 411 from the second ring gear 421, and the diameter of the limiting rod 12 is smaller than that of the limiting hole 13, so that the first rotating rod 41 can separately drive the coil 5 to rotate clockwise in the process of rotating clockwise; when the wire 3 on the first coil 51 is pulled to be fed out, but the wire 3 on the second coil 52 is not pulled to be fed out, the first rotating rod 41 needs to be pulled upwards to disengage the first gear ring 411 from the second gear ring 421 when the wire is taken up, so that the wire can be taken up separately on the first coil 51; when the wire 3 in the second winding 52 is pulled to be fed out, but the wire 3 in the first winding 51 is not pulled to be fed out, the wire 3 in the first winding 51 needs to be pulled out when the wire is taken up, so that the first rotating rod 41 is rotated clockwise to drive the second rotating rod 42 to rotate together to take up two wires 3.

Example 2:

as shown in fig. 3 and 4, in combination with the technical solution of embodiment 1, in this embodiment, the winding device further includes blocking pieces 20, and the blocking pieces 20 are respectively connected to two sides of the winding coil 5 to limit the position of the wire 3, so as to facilitate the winding of the wire 3; the baffle 20 is made of conductive metal; specifically, the blocking pieces 20 on the opposite sides of the first winding 51 and the second winding 52 are made of conductive metal, the wires 3 are electrically connected to the blocking pieces 20, and the blocking pieces 20 are in a circular structure to abut against the contacts 7 through the blocking pieces 20, so that the blocking pieces 20 can be kept in contact with the contacts 7 when the winding 5 rotates at any angle.

Example 3:

as shown in fig. 4 and fig. 6, with reference to the technical solutions of embodiment 1 and embodiment 2, in this embodiment, the insulation resistance detection device further includes a conductive rod 14 and a second spring 15, the conductive rod 14 is disposed in the machine body 1, one end of the second spring 15 is connected to the conductive rod 14, the other end of the second spring 15 is connected to the contact 7, an end of the contact 7 is a semicircular structure, and the second spring 15 is disposed to enable the contact 7 to elastically contact with the blocking piece 20, so as to effectively reduce a friction force between the coil 5 and the contact 7 in a rotating process, and at the same time, reduce excessive wear between the coil 5 and the contact 7 in the rotating process, and avoid a problem that the insulation resistance detection fails due to poor contact between the coil 5 and the contact 7.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. A testing device for insulation resistance comprises a machine body (1) and two leads (3) connected with clamping heads (2); the portable multifunctional electric torch is characterized by further comprising a rotating rod (4), a winding coil (5) and a hand (6), wherein the rotating rod (4) is rotatably arranged in the machine body (1), the winding coil (5) is sleeved on the rotating rod (4), the wire (3) is wound on the winding coil (5), a contact (7) is arranged in the machine body (1), the contact (7) abuts against one side of the winding coil (5), and the hand (6) is connected to one end of the rotating rod (4); be equipped with rectangular channel (8), first spring (9) and arch (10) on bull stick (4), the one end of first spring (9) connect in the bottom of rectangular channel (8), the other end of first spring (9) connect in on arch (10), be equipped with guide way (11) on winding (5), arch (10) are passed through bull stick (4) are rotated in order to get into guide way (11), thereby drive winding (5) carry out clockwise rotation.

2. Testing device for insulation resistance according to claim 1, characterized in that said winding (5) comprises a first winding (51) and a second winding (52), said rotor (4) comprises a first rotor (41) and a second rotor (42), said first winding (51) being provided on said first rotor (41) and said second winding (52) being provided on said second rotor (42).

3. The insulation resistance testing device according to claim 2, wherein a clamping groove (30) is formed in the machine body (1), a clamping part (61) is formed in the hand crank (6), and the clamping part (61) is matched with the clamping groove (30) to lock the rotating rod (4).

4. The insulation resistance testing device according to claim 3, wherein the cross section of the upper end of the protrusion (10) is a triangular structure or a fan-shaped structure, and the inclined surface or the cambered surface of the protrusion (10) is arranged along the counterclockwise direction of the rotating rod (4).

5. The insulation resistance testing device according to claim 4, wherein a first gear ring (411) is arranged at one end of the first rotating rod (41), a second gear ring (421) is arranged at one end of the second rotating rod (42), a limiting rod (12) is further arranged at the end of the first rotating rod (41), a limiting hole (13) is further arranged at the end of the second rotating rod (42), and the limiting rod (12) is in sliding fit with the limiting hole (13) so that the first gear ring (411) is meshed with the second gear ring (421).

6. The insulation resistance testing device according to any one of claims 1 to 5, further comprising a blocking piece (20), wherein the blocking pieces (20) are respectively connected to two sides of the winding (5), the blocking pieces (20) are made of conductive metal, and the wires (3) are respectively and electrically connected to the blocking pieces (20).

7. The insulation resistance testing device according to claim 6, further comprising a conductive rod (14) and a second spring (15), wherein the conductive rod (14) is arranged in the machine body (1), one end of the second spring (15) is connected to the conductive rod (14), and the other end of the second spring (15) is connected to the contact (7).