CN210051823U

CN210051823U - Insulation resistance tester

Info

Publication number: CN210051823U
Application number: CN201920706557.5U
Authority: CN
Inventors: 陈民
Original assignee: Shanghai Zhenyou Equipment Engineering Technology Co Ltd
Current assignee: Shanghai Zhenyou Equipment Engineering Technology Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-02-11
Anticipated expiration: 2029-05-16

Abstract

The utility model belongs to the technical field of the power equipment technique and specifically relates to an insulation resistance tester is related to, including tester body, test handle, and positive wire, the negative pole wire of connecting tester body and test handle, test handle's end is equipped with the box body, and the box body internal fixation has the first axle stick and the second axle stick that are parallel to each other, and coaxial cover has first gear on the first axle stick, and coaxial cover has the second gear on the second axle stick, and first gear and second gear meshing all are equipped with the insulating stick of surveying on first gear and the second gear, are equipped with the conducting strip in the insulating stick of surveying, and the end of insulating stick of surveying is equipped with the conducting cap. The utility model can drive the second gear and the first gear to synchronously rotate by driving the third gear to rotate, thereby adjusting the distance between the two conductive caps, namely adjusting the test distance of the measuring head; through the form of the insulating measuring rod, the measuring rod monomers are connected end to end, the length of the insulating measuring rod can be increased, and the measuring distance of the two conductive caps is increased.

Description

Insulation resistance tester

Technical Field

The utility model belongs to the technical field of the power equipment technique and specifically relates to an insulation resistance tester is related to.

Background

Along with the increasing popularization of power generation and living facilities, the requirement on power supply reliability is higher and higher, and the hot-line work is carried out in power distribution, so that the power supply reliability can be improved, the power failure range and time of a user are greatly reduced, and the obvious economic benefit is achieved. Certainly, the personal safety of live-line workers is a problem which cannot be ignored, and according to the relevant regulations of live-line work, the tools and the instruments need to be subjected to sectional insulation detection by using an insulation resistance meter when entering and leaving a warehouse, so that the tools and the instruments are ensured to work in a normal state, and accidents such as electric shock casualties are avoided.

At present, when workers use an insulation resistance tester to perform segmented detection on live working tools such as insulation clothes, insulation blankets and the like, because positive and negative leads of the insulation resistance tester are soft, the detection can be completed only by matching two workers, so that the defects of manpower waste, low detection efficiency, inconvenience in operation and the like are overcome, and hands are in direct contact with the positive and negative leads, so that the detection is extremely unsafe.

The utility model discloses a grant publication number is CN 204631132U's utility model discloses a safe type insulation resistance tester, including insulation resistance tester body, connect anodal wire and the negative pole wire on insulation resistance tester body, still include a test handle, this test handle is by stereoplasm insulation support, insulating installation head, metal test head and mounting constitute, it installs insulating installation head to be equipped with admittedly at stereoplasm insulation support's head, both ends fixed mounting has metal test head about insulating installation head, install the mounting on each metal test head, anodal wire and negative pole wire all pass stereoplasm insulation support and fix respectively on metal test head through the mounting. This patent is used manpower sparingly, has improved detection efficiency, convenient operation.

However, in the above patent, the metal test heads are fixedly mounted at the left and right ends of the insulating mounting head, the distance between the two metal test heads is fixed and cannot be adjusted, and when the size of the tested object or the part capable of being detected by the tested object is small, the test cannot be accurately performed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an insulation resistance tester, it has the advantage of adjustable gauge head test interval.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: an insulation resistance tester comprises a tester body, a testing handle, and a positive lead and a negative lead which are used for connecting the tester body and the testing handle, wherein a box body is arranged at the tail end of the testing handle, a first shaft rod and a second shaft rod which are parallel to each other are fixed in the box body, a first gear is coaxially sleeved on the first shaft rod, a second gear is coaxially sleeved on the second shaft rod, the first gear is meshed with the second gear, insulation testing rods are respectively arranged on the first gear and the second gear, a conducting strip is arranged in each insulation testing rod, a conducting cap is arranged at the tail end of each insulation testing rod, a conducting stud is screwed on each insulation testing rod, the conducting cap is conducted with the conducting strip through the conducting stud, and the positive lead and the negative lead are respectively connected with the conducting strips in the two insulation testing rods; a first rotating shaft is fixed in the box body, a third gear is coaxially fixed on the first rotating shaft and meshed with the first gear, a knob is fixed on the top end of the first rotating shaft after penetrating out of the box body, and a first clamping mechanism used for fixing the knob is arranged on the box body.

Through adopting above-mentioned technical scheme, it is rotatory through rotatory knob drive third gear, can drive first gear and second gear synchronous revolution to adjust the interval of the terminal conductive cap of insulating survey stick on both sides, it can to fix the knob with the dead mechanism of first card after finishing adjusting.

Preferably, the first locking mechanism comprises a screw, the screw is screwed on the knob, and the screw abuts against the surface of the box body.

By adopting the technical scheme, the surface of the box body is pressed by the screw, and the purpose of fixing the knob is achieved by increasing the static friction force between the screw and the surface of the box body.

Preferably, a first chain wheel is coaxially fixed on the first rotating shaft, a second rotating shaft is arranged on the testing handle, a second chain wheel is coaxially fixed on the second rotating shaft, the first chain wheel is connected with the second chain wheel through a chain, a second clamping mechanism used for fixing the second chain wheel is arranged on the testing handle, and a rotating handle is coaxially fixed on the second chain wheel.

Through adopting above-mentioned technical scheme, through the twist grip on the rotatory test handle, can drive first gear rotatory to adjust the interval of two electrically conductive caps, adjust the dead mechanism of back with the second card and can fix twist grip. The rotary handle is used for adjustment, so that the rotary knob does not need to be bent, and the adjustment process is more convenient and quicker.

Preferably, the second clamping mechanism comprises a pin shaft for inserting the chain, a pin hole is formed in the test handle, and the pin shaft is arranged in the pin hole.

Through adopting above-mentioned technical scheme, can prevent the twist grip rotation with round pin axle insertion chain in.

Preferably, the test handle includes the bottom plate, and in positive wire and negative pole wire wore to locate the bottom plate, be fixed with the reinforcing plate on the bottom plate, reinforcing plate one end and box body fixed connection, the reinforcing plate other end were equipped with the hand hole, still are close to the hand hole on the reinforcing plate and are equipped with the sprocket mounting hole, and in the sprocket mounting hole was located to the second sprocket, pinhole intercommunication hand hole and sprocket mounting hole.

By adopting the technical scheme, the test handle is convenient to hold by one hand due to the hand holes; the positive lead and the negative lead are arranged in the bottom plate, so that the leads can be protected; the second chain wheel is arranged in the chain wheel mounting hole, so that the whole structure is compact.

Preferably, the insulating excellent monomer of surveying including from last to a plurality of layers of range upon range of setting down, every survey and all be equipped with the conducting strip in the excellent monomer, every both ends of surveying excellent monomer all pass the conducting strip and are equipped with the screw hole, and electrically conductive double-screw bolt spiro union is in the screw hole, and first gear and second gear all only survey excellent monomer fixed connection with one, all have one in the insulating stick of surveying of every side survey excellent monomer end cover have electrically conductive cap, electrically conductive cap and this survey the electrically conductive double-screw bolt contact on the excellent monomer.

By adopting the technical scheme, the single measuring rod is connected end to end by the conductive studs, so that the length of the insulating measuring rod can be increased, and the measuring distance of the two conductive caps can be increased.

Preferably, the first shaft rod and the second shaft rod are hollow, two through holes communicated with the first shaft rod and the second shaft rod are formed in the bottom surface of the box body, the positive electrode lead sequentially penetrates through the through holes and the first shaft rod to enter the threaded hole of the single measuring rod at one side, and the negative electrode lead sequentially penetrates through the through holes and the second shaft rod to enter the threaded hole of the single measuring rod at the other side.

Through adopting above-mentioned technical scheme, anodal wire and negative pole wire penetrate the box body in from first axostylus axostyle, second axostylus axostyle respectively, can avoid first gear and second gear.

Preferably, an insulating block is fixed on the box body and is blocked between the insulating measuring rods on the two sides.

By adopting the technical scheme, the insulating block can avoid the short circuit of the positive wire and the negative wire caused by the contact of the two conductive caps.

To sum up, the utility model discloses a beneficial technological effect does:

1. the third gear is driven to rotate, so that the second gear and the first gear can be driven to synchronously rotate, and the distance between the two conductive caps is adjusted, namely the test distance of the measuring head is adjusted;

2. through the form of the insulating measuring rod, the measuring rod monomers are connected end to end, the length of the insulating measuring rod can be increased, and the measuring distance of the two conductive caps is increased.

Drawings

FIG. 1 is a top view of an insulation resistance tester;

FIG. 2 is a top view of the insulation resistance tester with the cartridge hidden;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a schematic view of the structure of the single body of the measuring rod;

FIG. 5 is a perspective view of the insulation resistance tester;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the insulation resistance tester with the base plate hidden;

FIG. 8 is an enlarged view of portion B of FIG. 3;

fig. 9 is an enlarged view of the portion C in fig. 3.

In the figure, 1, a tester body; 2. a test handle; 3. a positive electrode lead; 4. a negative electrode lead; 5. insulating the measuring rod; 51. measuring a rod monomer; 51a, a threaded hole; 6. a conductive sheet; 7. a conductive stud; 8. a conductive cap; 9. a box body; 9a, a through hole; 10. a first mandrel bar; 11. a second shaft rod; 12. a first rotating shaft; 13. a first gear; 14. a second gear; 15. a third gear; 16. a knob; 17. a screw; 18. a first sprocket; 19. a second sprocket; 20. a chain; 21. a second rotating shaft; 22. a pin shaft; 23. a base plate; 24. a reinforcing plate; 24a, pin holes; 24b, hand holes; 24c, sprocket mounting holes; 25. an insulating block; 26. the handle is rotated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): fig. 1 is the utility model discloses an insulation resistance tester, including tester body 1 and test handle 2, positive wire 3 and negative pole wire 4 are drawn forth on the tester body 1, and positive wire 3 and negative pole wire 4 penetrate in test handle 2.

As shown in fig. 1 and 2, a box body 9 is fixed at the end of the test handle 2, a first shaft rod 10 and a second shaft rod 11 which are parallel to each other are fixed in the box body 9, a rotatable first gear 13 is coaxially sleeved on the first shaft rod 10, a rotatable second gear 14 is coaxially sleeved on the second shaft rod 11, and the second gear 14 is meshed with the first gear 13. The first gear 13 and the second gear 14 are both provided with an insulating measuring rod 5.

As shown in fig. 3 and 4, the insulating measuring rod 5 is formed by stacking a plurality of layers of measuring rod monomers 51 from top to bottom, each measuring rod monomer 51 is internally provided with a conducting strip 6 (the conducting strip 6 extends from one end of the measuring rod monomer 51 to the other end of the measuring rod monomer 51), and both ends of each measuring rod monomer 51 penetrate through the conducting strip 6 therein to form threaded holes 51 a.

As shown in fig. 5 and 6, a conductive stud 7 (a countersunk stud) is screwed into the threaded hole 51a, and the conductive stud 7 is also in contact with the conductive plate 6. The first gear 13 and the second gear 14 are both fixedly connected with only one measuring rod monomer 51, only one measuring rod monomer 51 is sleeved at the tail end of the insulating measuring rod 5 at each side, and the conductive cap 8 is in contact with the conductive stud 7 on the measuring rod monomer 51 (the conductive cap 8 covers the threaded hole 51a, and the conductive stud 7 in the threaded hole 51a protrudes out of the threaded hole 51a to be in contact with the conductive cap 8).

As shown in fig. 5 and 6, the single measuring rod 51 is connected end to end by the conductive stud 7, and the single measuring rod 51 sleeved with the conductive cap 8 is positioned at the tail end of the insulating measuring rod 5, so that the length of the insulating measuring rod 5 can be increased, and the testing distance between the two conductive caps 8 can be increased. The positive lead 3 and the negative lead 4 are respectively inserted into the threaded holes 51a of the two measuring rod monomers 51, and the conductive studs 7 are screwed in the threaded holes 51a, so that the tail ends of the positive lead 3 and the negative lead 4 are both contacted with the conductive sheet 6.

As shown in fig. 6, the first and

second mandrels

10, 11 are hollow inside. As shown in fig. 7, the bottom surface of the case 9 is provided with two through holes 9a communicating with the first shaft 10 and the second shaft 11, and the positive electrode lead 3 and the negative electrode lead 4 are inserted into the case 9 through the two through holes 9 a.

As shown in fig. 5, the testing handle 2 is composed of a bottom plate 23 and a reinforcing plate 24 which are perpendicular to each other, the positive electrode lead 3 and the negative electrode lead 4 are arranged in the bottom plate 23 in a penetrating manner, one end of the reinforcing plate 24 is fixedly connected with the box body 9, and the other end of the reinforcing plate 24 is provided with a hand hole 24b for holding by a single hand.

As shown in fig. 8, a sprocket mounting hole 24c is formed in the reinforcing plate 24 near the hand hole 24b, a rotatable second shaft 21 is disposed in the sprocket mounting hole 24c, and the second shaft 21 is coaxially fixed with the second sprocket 19 and the rotating handle 26.

As shown in fig. 9, a rotatable first rotating shaft 12 is fixed in the box body 9, the first rotating shaft 12 is parallel to the first shaft rod 10, a third gear 15 is coaxially fixed on the first rotating shaft 12, and the third gear 15 is meshed with the first gear 13; a first sprocket 18 is coaxially fixed on the first shaft 12, and the first sprocket 18 is connected with a second sprocket 19 through a chain 20.

As shown in fig. 8, a pin hole 24a (not visible in fig. 8, indicated by a dotted line) is formed in the inner wall of the hand hole 24b, the pin hole 24a is inserted into the sprocket mounting hole 24c, the pin 22 is inserted into the pin hole 24a, and the pin 22 is inserted into a gap between adjacent links of the chain 20.

As shown in fig. 9, a knob 16 is fixed on the top end of the first rotating shaft 12 after penetrating through the box body 9, a screw 17 is screwed on the knob 16, and the knob 16 can be fixed when the screw 17 is pressed against the surface of the box body 9.

As shown in fig. 6, an insulating block 25 is further fixed on the box body 9, the insulating block 25 is blocked between the insulating measuring rods 5 on both sides, and the insulating block 25 can prevent the two conductive caps 8 from contacting to cause a short circuit between the positive lead 3 and the negative lead 4.

The implementation principle of the embodiment is as follows: the third gear 15 is driven to rotate by rotating the knob 16 or rotating the rotating handle 26, so that the first gear 13 and the second gear 14 are driven to synchronously rotate, the distance between the conductive caps 8 at the tail ends of the insulating measuring rods 5 at two sides is adjusted, and after the adjustment is finished, the screw 17 is pressed on the surface of the box body 9 to fix the knob 16 or the pin shaft 22 is inserted into the chain 20 to fix the rotating handle 26. When the insulating measuring rod 5 needs to be lengthened, all the conductive studs 7 on the insulating measuring rod 5 are detached, all the measuring rod monomers 51 in the insulating measuring rod 5 on each side are connected end to end on a straight line, the conductive studs 7 are used for connecting the two adjacent measuring rod monomers 51, the conductive studs 7 can conduct the conductive sheets 6 in the two adjacent measuring rod monomers 51, and therefore the conductive caps 8 on the measuring rod monomers 51 at the tail end are electrified.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an insulation resistance tester, includes tester body (1), test handle (2) and connects positive pole wire (3), negative pole wire (4) of tester body (1) and test handle (2), its characterized in that:

the tail end of the test handle (2) is provided with a box body (9), a first shaft rod (10) and a second shaft rod (11) which are parallel to each other are fixed in the box body (9), a first gear (13) is coaxially sleeved on the first shaft rod (10), a second gear (14) is coaxially sleeved on the second shaft rod (11), the first gear (13) is meshed with the second gear (14), the first gear (13) and the second gear (14) are both provided with an insulation measuring rod (5), a conducting strip (6) is arranged in the insulation measuring rod (5), the tail end of the insulation measuring rod (5) is provided with a conducting cap (8), the insulation measuring rod (5) is in threaded connection with a conducting stud (7), the conducting cap (8) is communicated with the conducting strip (6) through the conducting stud (7), and the positive lead (3) and the negative lead (4) are respectively connected with the conducting strips (6) in the two insulation measuring rods (5);

a first rotating shaft (12) is fixed in the box body (9), a third gear (15) is coaxially fixed on the first rotating shaft (12), the third gear (15) is meshed with the first gear (13), a knob (16) is fixed on the top end of the first rotating shaft (12) after penetrating out of the box body (9), and a first clamping mechanism used for fixing the knob (16) is arranged on the box body (9).

2. The insulation resistance tester as recited in claim 1, wherein: the first clamping mechanism comprises a screw (17), the screw (17) is screwed on the knob (16), and the screw (17) is pressed against the surface of the box body (9).

3. The insulation resistance tester as recited in claim 1, wherein: the test device is characterized in that a first chain wheel (18) is coaxially fixed on the first rotating shaft (12), a second rotating shaft (21) is arranged on the test handle (2), a second chain wheel (19) is coaxially fixed on the second rotating shaft (21), the first chain wheel (18) is connected with the second chain wheel (19) through a chain (20), a second clamping mechanism used for fixing the second chain wheel (19) is arranged on the test handle (2), and a rotating handle (26) is coaxially fixed on the second chain wheel (19).

4. The insulation resistance tester as recited in claim 3, wherein: the second clamping mechanism comprises a pin shaft (22) used for inserting the chain (20), a pin hole (24 a) is formed in the testing handle (2), and the pin shaft (22) is arranged in the pin hole (24 a).

5. The insulation resistance tester as recited in claim 4, wherein: test handle (2) include bottom plate (23), in bottom plate (23) are worn to locate by anodal wire (3) and negative pole wire (4), be fixed with reinforcing plate (24) on bottom plate (23), reinforcing plate (24) one end and box body (9) fixed connection, reinforcing plate (24) other end is equipped with hand hole (24 b), it is equipped with sprocket mounting hole (24 c) still to be close to hand hole (24 b) on reinforcing plate (24), sprocket mounting hole (24 c) are located in second sprocket (19), pinhole (24 a) intercommunication hand hole (24 b) and sprocket mounting hole (24 c).

6. The insulation resistance tester as recited in claim 1, wherein: insulating excellent (5) of surveying including from last to a plurality of layers of survey excellent monomer (51) of range upon range of setting down, every survey all to be equipped with conducting strip (6) in excellent monomer (51), every both ends of surveying excellent monomer (51) are all passed conducting strip (6) and are equipped with screw hole (51 a), electrically conductive stud (7) spiro union is in screw hole (51 a), first gear (13) and second gear (14) all only survey excellent monomer (51) fixed connection with one, all have one in insulating the excellent (5) of surveying of every side and survey excellent monomer (51) end cover have electrically conductive cap (8), electrically conductive cap (8) and this electrically conductive stud (7) contact on surveying excellent monomer (51).

7. The insulation resistance tester as recited in claim 1, wherein: the utility model discloses a pole box, including box body (9), first axle stick (10), second axle stick (11), first axle stick (10) and second axle stick (11) are inside cavity, box body (9) bottom surface be equipped with first axle stick (10), communicating two through-holes (9 a) of second axle stick (11), in through-hole (9 a), first axle stick (10) are passed in proper order in anodal wire (3) get into screw hole (51 a) that stick monomer (51) were surveyed to one side, in negative pole wire (4) get into screw hole (51 a) that stick monomer (51) were surveyed to the opposite side through-hole (9 a), second axle stick (.

8. The insulation resistance tester as recited in claim 1, wherein: an insulating block (25) is fixed on the box body (9), and the insulating block (25) is blocked between the insulating measuring rods (5) on the two sides.