CN112444441A - Tensile testing device for electric porcelain insulator - Google Patents
Tensile testing device for electric porcelain insulator Download PDFInfo
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- CN112444441A CN112444441A CN202011295044.3A CN202011295044A CN112444441A CN 112444441 A CN112444441 A CN 112444441A CN 202011295044 A CN202011295044 A CN 202011295044A CN 112444441 A CN112444441 A CN 112444441A
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- 239000012212 insulator Substances 0.000 title claims abstract description 46
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 29
- 238000009864 tensile test Methods 0.000 title claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 abstract description 8
- 238000005381 potential energy Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
Abstract
The invention discloses a tension testing device for an electric porcelain insulator, which comprises a box body, wherein a plate body is welded on the bottom wall of the inner side of the box body, a movable plate is connected to the inner side wall of the box body in a sliding manner, two first grooves are symmetrically formed in the upper surface of the plate body and the lower surface of the movable plate, a first spring is welded on one side, away from each other, of each first groove, and a clamping plate is welded on one end, away from each first groove, of each first spring; move and extrude first spring and take place elastic deformation through the direction that makes the grip block towards first recess, then set up the electroceramic insulator body in the inside of second recess, then the grip block can be pushed back the normal position by the elastic potential energy of first spring, thereby carry out the centre gripping to the electroceramic insulator body, then the grip block still can promote the connecting plate and insert the inside that the second led to the groove, thereby realize the fixed to the electroceramic insulator body of various sizes, go on and can make going on that subsequent work can be smooth, thereby its practicality has been improved.
Description
Technical Field
The invention relates to the technical field of electric porcelain insulator testing, in particular to a tensile force testing device for an electric porcelain insulator.
Background
The insulator is a special insulating control and can play an important role in an overhead transmission line. Early-year insulators are mostly used for telegraph poles, and a plurality of disc-shaped insulators are hung at one end of a high-voltage wire connecting tower which is gradually developed, are used for increasing creepage distance and are usually made of glass or ceramics, namely insulators. The insulator should not fail due to various electromechanical stresses caused by changes in environmental and electrical loading conditions, otherwise the insulator will not function significantly and will compromise the service and operational life of the entire line. An electrical porcelain insulator refers to a porcelain electrically insulating material.
The existing electric porcelain insulator needs to be subjected to tension detection in order to guarantee normal use, however, the existing tension testing device for the electric porcelain insulator cannot fix the electric porcelain insulators with different sizes, so that normal running of testing work is influenced, subsequent work progress is delayed, and further practicability is reduced.
Disclosure of Invention
The invention aims to provide a tension testing device for an electric porcelain insulator, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a tensile force testing device for an electric porcelain insulator comprises a box body, wherein a plate body is welded on the bottom wall of the inner side of the box body, a movable plate is connected on the inner side wall of the box body in a sliding manner, two first grooves are symmetrically formed in the upper surface of the plate body and the lower surface of the movable plate, first springs are welded on the sides, away from each other, of the two first grooves, a clamping plate is welded at one end, away from the first grooves, of each first spring, the outer side wall of each clamping plate is connected to the inner side wall of the corresponding first groove in a sliding manner, second grooves are formed in the upper surface of the plate body and the lower surface of the movable plate, a third groove is formed in the side, away from the first springs, of each clamping plate, a second spring is welded at one side, away from the third grooves, a connecting plate is welded at one end, away from the, a first through groove is formed in one side, away from the first spring, of the first groove, the side, away from the first groove, of the first through groove is communicated with the second groove, one side, away from the third groove, of the connecting plate penetrates through the inside of the first through groove and is inserted into the inside of the second groove, the outer side wall of the connecting plate is connected to the inner side wall of the first through groove in a sliding mode, a clamping groove is formed in one side, away from the second spring, of one connecting plate, a clamping block is bonded to one side, away from the second spring, of the other connecting plate, the outer side wall of the clamping block is clamped to the inner side wall of the clamping groove, an electric porcelain insulator body is inserted into the inner side wall of the second groove, two second through grooves are symmetrically formed in the outer side wall of the electric porcelain insulator body, the outer side wall of the connecting plate is connected to the inner, one end of the electric push rod piston rod penetrates through the inner side bottom wall of the shell and the upper surface of the box body in sequence and is fixedly connected to the upper surface of the movable plate.
As further preferable in the present technical solution: the upper surface mounting of plate body has force sensor, force sensor keeps away from one side of plate body and installs in the lower surface of fly leaf, the front surface mounting of box outer wall has controller and display screen, force sensor's signal output part and the signal input part of controller pass through first wire signal connection, the signal output part of controller and the signal input part of display screen pass through second wire signal connection.
As further preferable in the present technical solution: the spout has been seted up to the inboard roof of first recess, the inside wall sliding connection of spout has the slider, the slider is kept away from one side of spout and is welded in the lateral wall of grip block.
As further preferable in the present technical solution: the limiting groove has all been seted up to the inboard roof of third recess and inboard diapire, the inside wall sliding connection of limiting groove has the stopper, the stopper is kept away from one side of limiting groove and is welded in the lateral wall of connecting plate.
As further preferable in the present technical solution: and a rubber pad is bonded on one side of the clamping plate, which is far away from the first spring.
As further preferable in the present technical solution: the outer side wall of the shell is hinged to a second door plate through a second hinge, and a second observation window is fixedly connected to the front surface of the second door plate.
As further preferable in the present technical solution: the lateral wall of casing is seted up the heat dissipation through-hole that the equidistance was arranged, the inside wall bonding of heat dissipation through-hole has the dust screen.
As further preferable in the present technical solution: the front surface of box articulates through first hinge has first door plant, the front surface fixedly connected with first observation window of first door plant.
As further preferable in the present technical solution: the welding of the mutual symmetry in bottom four corners of box has four bracing pieces, the lateral wall sliding connection of bracing piece has the sleeve, the fourth that the equidistance was arranged leads to the groove is seted up to telescopic lateral wall, the fifth that the equidistance was arranged leads to the groove is seted up to the lateral wall of bracing piece, the inside wall that the fourth led to the groove communicates with the inside wall in fifth groove each other, the inside wall that the fourth led to the groove and the inside wall in fifth groove are pegged graft and are had the bolt, the lateral wall symmetrical welding of bracing piece has two connecting rods, the one end that the bracing piece was kept away from to the connecting rod.
Compared with the prior art, the invention has the beneficial effects that:
firstly, an electric push rod is moved to drive a movable plate to move upwards, so that an electric porcelain insulator body is pulled to generate elastic deformation, a tension sensor is pulled, data information can be generated to a controller after the tension sensor is pulled to bear force, and then the controller can control a display screen to display the data information detected by the tension sensor;
two, move and extrude first spring and take place elastic deformation through the direction that makes the grip block towards first recess, then set up the electroceramic insulator body in the inside of second recess, then the grip block can be pushed back the normal position by the elastic potential energy of first spring, thereby carry out the centre gripping to the electroceramic insulator body, then the grip block still can promote the connecting plate and insert the inside that the second led to the groove, thereby realize the fixed to the electroceramic insulator body of various sizes, go on and can make going on that subsequent work can be smooth, thereby its practicality has been improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure of the region A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure of the area B in FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the housing of the present invention;
FIG. 5 is a schematic view of the internal structure of the sleeve of the present invention;
FIG. 6 is a schematic view of the connection structure between the box body and the first door according to the present invention;
fig. 7 is a circuit diagram of the present invention.
In the figure: 1. a box body; 2. a plate body; 3. a movable plate; 4. a first groove; 5. a first spring; 6. a clamping plate; 7. a second groove; 8. a third groove; 9. a second spring; 11. a connecting plate; 12. a first through groove; 13. a card slot; 14. a clamping block; 15. an electrical porcelain insulator body; 16. a second through groove; 17. a housing; 18. an electric push rod; 19. a tension sensor; 20. a controller; 21. a display screen; 22. a chute; 23. a slider; 24. a limiting groove; 25. a limiting block; 26. a rubber pad; 27. a second door panel; 28. a second observation window; 29. a heat dissipating through hole; 30. a dust screen; 31. a first door panel; 32. a first observation window; 33. a support bar; 34. a sleeve; 35. a fourth through groove; 36. a fifth through groove; 37. a bolt; 38. a connecting rod; 39. and a support plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-7, the present invention provides a technical solution: a tension testing device for an electrical porcelain insulator comprises a box body 1, wherein a plate body 2 is welded on the bottom wall of the inner side of the box body 1, a movable plate 3 is connected on the inner side wall of the box body 1 in a sliding manner, two first grooves 4 are symmetrically formed in the upper surface of the plate body 2 and the lower surface of the movable plate 3, first springs 5 are welded on the sides, away from each other, of the two first grooves 4, a clamping plate 6 is welded on one end, away from the first grooves 4, of each first spring 5, the outer side wall of each clamping plate 6 is connected with the inner side wall of the corresponding first groove 4 in a sliding manner, second grooves 7 are formed in the upper surface of the plate body 2 and the lower surface of the movable plate 3, third grooves 8 are formed in the sides, away from the first springs 5, of the clamping plates 6, second springs 9 are welded on the sides, away from each other, of the second springs 9, one ends, away from the third, a first through groove 12 is formed in one side of the first groove 4 far away from the first spring 5, one side of the first through groove 12 far away from the first groove 4 is communicated with the second groove 7, one side of the connecting plate 11 far away from the third groove 8 penetrates through the inside of the first through groove 12 and is inserted into the inside of the second groove 7, the outer side wall of the connecting plate 11 is slidably connected with the inner side wall of the first through groove 12, a clamping groove 13 is formed in one side of one connecting plate 11 far away from the second spring 9, a clamping block 14 is bonded to one side of the other connecting plate 11 far away from the second spring 9, the outer side wall of the clamping block 14 is clamped to the inner side wall of the clamping groove 13, an electric porcelain insulator body 15 is inserted into the inner side wall of the second groove 7, two second through grooves 16 are symmetrically formed in the outer side wall of the electric porcelain insulator body 15, the outer side wall of, the inner side wall of the housing 17 is connected with an electric push rod 18 through threads, and one end of a piston rod of the electric push rod 18 sequentially penetrates through the inner side bottom wall of the housing 17 and the upper surface of the box body 1 and is fixedly connected to the upper surface of the movable plate 3.
In this embodiment, specifically: a tension sensor 19 is mounted on the upper surface of the plate body 2, one side, away from the plate body 2, of the tension sensor 19 is mounted on the lower surface of the movable plate 3, a controller 20 and a display screen 21 are mounted on the front surface of the outer wall of the box body 1, a signal output end of the tension sensor 19 is in signal connection with a signal input end of the controller 20 through a first lead, and a signal output end of the controller 20 is in signal connection with a signal input end of the display screen 21 through a second lead; through setting up tension sensor 19 and controller 20, can be used for measuring the pulling force, through setting up display screen 21, can demonstrate the pulling force data.
In this embodiment, specifically: a sliding groove 22 is formed in the top wall of the inner side of the first groove 4, a sliding block 23 is connected to the inner side wall of the sliding groove 22 in a sliding mode, and one side, far away from the sliding groove 22, of the sliding block 23 is welded to the outer side wall of the clamping plate 6; the slide groove 22 and the slide block 23 are provided to guide the clamping plate 6.
In this embodiment, specifically: limiting grooves 24 are formed in the inner top wall and the inner bottom wall of the third groove 8, a limiting block 25 is connected to the inner side wall of each limiting groove 24 in a sliding mode, and one side, far away from each limiting groove 24, of each limiting block 25 is welded to the outer side wall of the connecting plate 11; the limiting groove 24 and the limiting block 25 are arranged to limit the connecting plate 11, so that the connecting plate is prevented from being moved out of the third groove 8.
In this embodiment, specifically: a rubber pad 26 is adhered to one side of the clamping plate 6 away from the first spring 5; through setting up rubber pad 26, can play the effect of buffering when carrying out the centre gripping again to electroceramics insulator body 15.
In this embodiment, specifically: the outer side wall of the shell 17 is hinged with a second door panel 27 through a second hinge, and the front surface of the second door panel 27 is fixedly connected with a second observation window 28; by providing the second viewing window 28, it is possible to facilitate viewing of the operating conditions within the housing 17.
In this embodiment, specifically: the outer side wall of the shell 17 is provided with heat dissipation through holes 29 which are arranged at equal intervals, and the inner side wall of each heat dissipation through hole 29 is bonded with a dustproof net 30; by providing the heat dissipation through hole 29, the heat dissipation performance inside the housing 17 can be increased, and by providing the dust-proof net 30, dust can be prevented from entering the inside of the housing 17 through the heat dissipation through hole 29.
In this embodiment, specifically: the front surface of the box body 1 is hinged with a first door panel 31 through a first hinge, and the front surface of the first door panel 31 is fixedly connected with a first observation window 32; by providing the first observation window 32, it is possible to facilitate observation of the working conditions in the case 1.
In this embodiment, specifically: the welding of the mutual symmetry in bottom four corners of box 1 has four bracing pieces 33, the lateral wall sliding connection of bracing piece 33 has sleeve 34, the fourth through groove 35 that the equidistance was arranged is seted up to the lateral wall of sleeve 34, the fifth through groove 36 that the equidistance was arranged is seted up to the lateral wall of bracing piece 33, the inside wall of fourth through groove 35 and the inside wall of fifth through groove 36 communicate each other, the inside wall of fourth through groove 35 and the inside wall grafting of fifth through groove 36 have bolt 37, the lateral wall symmetrical welding of bracing piece 33 has two connecting rods 38, the one end that connecting rod 38 keeps away from bracing piece 33 welds in the lower surface of box 1, the lower surface welding of sleeve 34 has backup; through making the bracing piece 33 slide in the inside of sleeve 34 to can carry out free regulation to the height of this device, through inserting the inside wall of fourth logical groove 35 and the inside wall of fifth logical groove 36 with bolt 37, thereby fix its position, through setting up connecting rod 38, can play the fixed effect of dispersion, through setting up backup pad 39, can play the effect of support to this device.
Working principle or structural principle, when in use, the two clamping plates 6 move towards the direction away from each other and press the first spring 5 to generate elastic deformation, then the two ends of the electric porcelain insulator body 15 are respectively inserted into the two second grooves 7, then the clamping plates 6 can be pushed back to the original position by the elastic potential energy generated after the elastic deformation of the first spring 5, so as to clamp the electric porcelain insulator body, meanwhile, the clamping plates 6 can also push the connecting plates 11 to move towards the direction of the second grooves 7, so as to be inserted into the second through grooves 16, when the two connecting plates 11 are contacted with each other, the connecting plates can be pushed towards the inside of the third grooves 8 to move and press the second springs 9 to generate elastic deformation, then the connecting plates 11 can be pushed out from the inside of the third grooves 8 by the elastic potential energy generated after the elastic deformation of the second springs 9, thereby make its length and the internal diameter phase-match of second through-slot 16, and make the inside of fixture block 14 inserted draw-in groove 13, thereby fix the both ends of electroceramic insulator body 15, then start through on-off control electric putter 18, electric putter 18 drives fly leaf 3 through its piston rod and upwards moves, thereby pulling electroceramic insulator body 15 and take place elastic deformation, and pulling force sensor 19, can be with signal transmission to controller 20 after the pulling force sensor 19 atress, then controller 20 can control the start-up of display screen 21 and send the information that pulling force sensor 19 detected to display screen 21 and show.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a tensile test device for electroceramic insulator, includes box (1), its characterized in that: the plate body (2) is welded on the inner side bottom wall of the box body (1), the movable plate (3) is connected on the inner side wall of the box body (1) in a sliding mode, two first grooves (4) are symmetrically formed in the upper surface of the plate body (2) and the lower surface of the movable plate (3), first springs (5) are welded on the sides, away from each other, of the two first grooves (4), a clamping plate (6) is welded on one end, away from the first grooves (4), of each first spring (5), the outer side wall of each clamping plate (6) is connected to the inner side wall of each first groove (4) in a sliding mode, second grooves (7) are formed in the upper surface of the plate body (2) and the lower surface of the movable plate (3), third grooves (8) are formed in the side, away from the first springs (5), and second springs (9) are welded on the sides, away from each third groove (8), one end, far away from the third groove (8), of the second spring (9) is welded with a connecting plate (11), the outer side wall of the connecting plate (11) is connected to the inner side wall of the third groove (8) in a sliding manner, one side, far away from the first spring (5), of the first groove (4) is provided with a first through groove (12), one side, far away from the first groove (4), of the first through groove (12) is communicated with the second groove (7), one side, far away from the third groove (8), of the connecting plate (11) penetrates through the inside of the first through groove (12) and is inserted into the inside of the second groove (7), the outer side wall of the connecting plate (11) is connected to the inner side wall of the first through groove (12) in a sliding manner, one side, far away from the second spring (9), of the connecting plate (11) is provided with a clamping groove (13), and the other side, far away from the second spring (9), the lateral wall joint of fixture block (14) is in the inside wall of draw-in groove (13), the inside wall of second recess (7) is pegged graft and is had electroceramic insulator body (15), two logical grooves (16) are seted up to the lateral wall symmetry of electroceramic insulator body (15), the lateral wall sliding connection of connecting plate (11) leads to the inside wall of groove (16) in the second, the upper surface threaded connection of box (1) has casing (17), the inside wall threaded connection of casing (17) has electric putter (18), the one end of electric putter (18) piston rod runs through the upper surface and the fixed connection in the upper surface of fly leaf (3) of the inboard diapire of casing (17) and box (1) in proper order.
2. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: the upper surface mounting of plate body (2) has force sensor (19), force sensor (19) are kept away from one side of plate body (2) and are installed in the lower surface of fly leaf (3), the preceding surface mounting of box (1) outer wall has controller (20) and display screen (21), force sensor's (19) signal output part and controller's (20) signal input part pass through first wire signal connection, the signal output part of controller (20) and the signal input part of display screen (21) pass through second wire signal connection.
3. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: spout (22) have been seted up to the inboard roof of first recess (4), the inside wall sliding connection of spout (22) has slider (23), one side that spout (22) were kept away from in slider (23) welds in the lateral wall of grip block (6).
4. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: spacing groove (24) have all been seted up with inboard diapire to the inboard roof of third recess (8), the inside wall sliding connection of spacing groove (24) has stopper (25), one side that spacing groove (24) were kept away from in stopper (25) welds in the lateral wall of connecting plate (11).
5. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: and a rubber pad (26) is bonded on one side of the clamping plate (6) far away from the first spring (5).
6. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: the outer side wall of the shell (17) is hinged to a second door panel (27) through a second hinge, and a second observation window (28) is fixedly connected to the front surface of the second door panel (27).
7. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: the outer side wall of the shell (17) is provided with heat dissipation through holes (29) which are arranged at equal intervals, and the inner side wall of each heat dissipation through hole (29) is bonded with a dust screen (30).
8. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: the front surface of box (1) articulates through first hinge has first door plant (31), the front surface fixedly connected with first observation window (32) of first door plant (31).
9. The tension testing device for the electric porcelain insulator according to claim 1, characterized in that: the welding of the mutual symmetry in bottom four corners of box (1) has four bracing pieces (33), the lateral wall sliding connection of bracing piece (33) has sleeve (34), fourth logical groove (35) that the equidistance was arranged are seted up to the lateral wall of sleeve (34), fifth logical groove (36) that the equidistance was arranged are seted up to the lateral wall of bracing piece (33), the inside wall that the fourth led to groove (35) communicates with each other with the inside wall that the fifth led to groove (36), the inside wall that the fourth led to groove (35) and the inside wall of fifth logical groove (36) are pegged graft and are had bolt (37), the lateral wall symmetrical welding of bracing piece (33) has two connecting rods (38), the one end that bracing piece (33) were kept away from in connecting rod (38) welds in the lower surface of box (1), the lower surface welding of sleeve (.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295044.3A CN112444441A (en) | 2020-11-18 | 2020-11-18 | Tensile testing device for electric porcelain insulator |
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| CN202011295044.3A CN112444441A (en) | 2020-11-18 | 2020-11-18 | Tensile testing device for electric porcelain insulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340345A (en) * | 2021-05-27 | 2021-09-03 | 三瑞科技(江西)有限公司 | Glass insulator quality inspection device |
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