An insulator creepage distance measuring tool and its usage method

Abstract

The present invention provides an insulator creepage distance measuring tool and a using method thereof. The insulator creepage distance measuring tool includes a nozzle, a roller head, a first rotating shaft sleeve, a second rotating shaft sleeve, a first gear, a second gear, a first belt loop, a second belt loop and a measuring belt. The roller head is rotatably mounted on the nozzle. The first gear and the first belt loop are respectively fixedly mounted on the first rotating shaft sleeve. The second gear and the second belt loop are respectively fixedly mounted on the second rotating shaft sleeve. The first gear is meshed and connected with the second gear. The first belt loop and the second belt loop are correspondingly arranged on the same side. The first end of the measuring belt is wound and connected to the first belt loop, and the second end of the measuring belt passes through the roller head and is wound and connected to the second belt loop. The insulator creepage distance measuring tool provided by the present invention has a simple structure, a small volume, a light weight, is convenient to use, has a low cost, can improve the accuracy of the measurement result, and provides convenience for on-site actual measurement work.

Description

Technical Field

[0001] The present invention relates to the technical field of insulator creepage distance measurement, and in particular to an insulator creepage distance measurement tool and a method for using the same. Background Art

[0002] The creepage distance refers to the shortest distance measured along the insulating surface between two adjacent conductors. The creepage distance of an insulator is actually used to determine the selection parameters of the insulator. Insulators have very different shapes according to different usage scenarios. For insulators with different shapes, the number of curved surfaces and the bending conditions encountered during the measurement of the surface creepage distance are different. If the creepage distance of the insulator is insufficient, it will cause surface discharge of the equipment and insulation aging. In severe cases, it will cause large-scale power outages, fires, explosions and other accidents, posing a serious threat to people's lives and safety. Therefore, it is necessary to accurately measure the creepage distance of the insulator.

[0003] The existing tools for measuring the creepage distance of insulators mainly include tape measures, tapes, thin hemp ropes and laser rangefinders, etc. Among them, when using a tape measure for measurement, due to the complex surface shape of the insulator and various curved surface conditions, the tape measure is prone to sliding during the measurement process and cannot closely fit the surface of the object to be measured, resulting in large measurement errors. When using a tape for measurement, although it can closely fit the surface of the object to be measured to a great extent, it is also difficult to achieve close fitting for a slit-shaped surface with a large bending curvature. However, the tape has a certain degree of ductility, and there are large errors when measuring the tape length after tearing. Moreover, the residue of the tape remaining on the surface of the object to be measured is not easy to be removed. If the residue is not removed cleanly, it will make the electrical equipment more likely to occur pollution flashover and discharge, affecting the safe operation of the electrical equipment and personal safety. When using a soft and non-sticky tool such as a thin hemp rope for measurement, there is also the problem that it cannot closely fit the surface of the object to be measured, and the thin hemp rope type measurement tool itself has a certain thickness, which will also increase the error of the measurement result. When using a laser rangefinder for measurement, it is necessary to rely on devices such as a computer. Although the accuracy of the measurement result is improved, the cost of the measurement tool is increased. Summary of the Invention

[0004] The first object of the present invention is to provide an insulator creepage distance measurement tool, which is convenient to use, low in cost, and improves the accuracy of the measurement result.

[0005] The second object of the present invention is to provide a method for using an insulator creepage distance measurement tool.

[0006] The present invention provides an insulator creepage distance measuring tool, which includes a pressure nozzle, a roller head, a first rotating shaft sleeve, a second rotating shaft sleeve, a first gear, a second gear, a first belt loop, a second belt loop and a measuring belt. The roller head is rotatably installed on the pressure nozzle. The first gear and the first belt loop are respectively fixedly installed on the first rotating shaft sleeve. The second gear and the second belt loop are respectively fixedly installed on the second rotating shaft sleeve. The first gear is meshed and connected with the second gear. The first belt loop and the second belt loop are arranged corresponding to each other on the same side. The first end of the measuring belt is wound and connected to the first belt loop, and the second end of the measuring belt passes through the roller head and is wound and connected to the second belt loop.

[0007] An insulator creepage distance measuring tool according to the present invention further includes a housing, the housing is provided with a measuring port. The first rotating shaft sleeve, the second rotating shaft sleeve, the first gear, the second gear, the first belt loop and the second belt loop are all arranged inside the housing. The pressure nozzle is arranged on the housing at a position close to the measuring port. The roller head is installed at the measuring end of the pressure nozzle, and the measuring end passes through the measuring port and extends outside the housing.

[0008] An insulator creepage distance measuring tool according to the present invention, the pressure nozzle is fixedly installed on a pressure nozzle fixing column, and both ends of the pressure nozzle fixing column are fixedly connected to the inner side wall of the housing respectively.

[0009] An insulator creepage distance measuring tool according to the present invention, the first rotating shaft sleeve is rotatably sleeved on a first fixed shaft, and both ends of the first fixed shaft are fixedly connected to the inner side wall of the housing respectively; the second rotating shaft sleeve is rotatably sleeved on a second fixed shaft, and both ends of the second fixed shaft are fixedly connected to the inner side wall of the housing respectively.

[0010] An insulator creepage distance measuring tool according to the present invention further includes a first guiding shaft arranged between the first fixed shaft and the roller head. Both ends of the first guiding shaft are fixedly connected to the inner side wall of the housing respectively. The second end of the measuring belt passes through the first guiding shaft and the roller head in sequence;

[0011] It further includes a second guiding shaft arranged between the second fixed shaft and the roller head. Both ends of the second guiding shaft are fixedly connected to the inner side wall of the housing respectively. The second end of the measuring belt passes through the first guiding shaft, the roller head and the second guiding shaft in sequence.

[0012] An insulator creepage distance measuring tool provided according to the present invention, wherein a roller head mounting seat is provided at the measuring end, and the roller head mounting seat includes a first mounting plate, a second mounting plate and a connecting shaft. The first end of the first mounting plate and the first end of the second mounting plate are respectively fixedly connected to the measuring end, and the two ends of the connecting shaft are respectively fixedly connected to the second end of the first mounting plate and the second end of the second mounting plate correspondingly. The roller head is rotatably sleeved on the connecting shaft.

[0013] An insulator creepage distance measuring tool provided according to the present invention, wherein the measuring tape includes a PET film and an adhesive layer that are mutually adhered.

[0014] An insulator creepage distance measuring tool provided according to the present invention, wherein measuring scales are provided on the PET film.

[0015] An insulator creepage distance measuring tool provided according to the present invention, wherein the measuring tape is a PVC flexible ruler tape, and measuring scales are provided on the PVC flexible ruler tape.

[0016] The present invention also provides a usage method of an insulator creepage distance measuring tool based on the above, including:

[0017] Bring the roller head on the nozzle into contact with the object to be measured, so that a predetermined angle is formed between the nozzle and the surface of the object to be measured, and then press and push the roller head to move along the surface of the object to be measured, so that the measuring tape led out from the roller head is closely attached to the surface of the object to be measured;

[0018] When the roller head is pushed to a predetermined measurement position, stop pushing the roller head, make the nozzle perpendicular to the surface of the object to be measured, and then separate the roller head from the surface of the object to be measured;

[0019] Read the distance that the measuring tape moves along the surface of the object to be measured.

[0020] The insulator creepage distance measuring tool provided by the present invention includes a pressure nozzle, a roller head, a first rotating shaft sleeve, a second rotating shaft sleeve, a first gear, a second gear, a first belt loop, a second belt loop and a measuring belt. The roller head is rotatably installed on the pressure nozzle. The first gear and the first belt loop are respectively fixedly installed on the first rotating shaft sleeve. The second gear and the second belt loop are respectively fixedly installed on the second rotating shaft sleeve. The first gear is meshed with the second gear. The first belt loop and the second belt loop are arranged corresponding to each other on the same side. The first end of the measuring belt is wound and connected to the first belt loop. The second end of the measuring belt passes through the roller head and is wound and connected to the second belt loop. During measurement, press and push the roller head on the pressure nozzle to move along the surface of the measured object, so that the measuring belt led out by the roller head is closely attached to the surface of the measured object. During the process of the roller head driving the measuring belt to move along the surface of the measured object, the first gear and the second gear are driven to rotate meshingly with each other under the action of the measuring belt, so that the measuring belt is conveyed from the first belt loop to the roller head, and the measuring belt is conveyed from the roller head to the second belt loop. Then, the creepage distance of the insulator can be obtained by reading the distance that the roller head drives the measuring belt to move along the surface of the measured object. Thus, the insulator creepage distance measuring tool provided by the present invention has a simple structure, a small volume, a light weight, is convenient to use, has a low cost, can improve the accuracy of the measurement result, and provides convenience for on-site actual measurement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the insulator creepage distance measuring tool of the present invention;

[0023] Figure 2 is a schematic layout diagram of the first gear, the second gear, the first belt loop and the second belt loop in the insulator creepage distance measuring tool of the present invention;

[0024] Figure 3 is a first schematic structural diagram of the measuring belt in the insulator creepage distance measuring tool of the present invention;

[0025] Figure 4 is a second schematic structural diagram of the measuring belt in the insulator creepage distance measuring tool of the present invention;

[0026] Figure 5 is a third schematic structural diagram of the measuring belt in the insulator creepage distance measuring tool of the present invention;

[0027] Figure 6Schematic diagram of the measurement route of the object to be measured in the present invention.

[0028] Explanation of reference numerals:

[0029] 1: nozzle; 2: roller head; 3: first rotating shaft sleeve; 4: second rotating shaft sleeve; 5: first gear; 6: second gear; 7: first belt loop; 8: second belt loop; 9: measuring belt; 901: PET film; 902: adhesive layer; 10: housing; 11: nozzle fixing post; 12: first fixed shaft; 13: second fixed shaft; 14: first guide shaft; 15: second guide shaft; 16: object to be measured. Specific embodiments

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following is combined with Figures 1 to 6 Describe the specific embodiments of the insulator creepage distance measuring tool of the present invention.

[0034] The insulator creepage distance measuring tool according to an embodiment of the present invention includes a nozzle 1, a roller head 2, a first rotating shaft sleeve 3, a second rotating shaft sleeve 4, a first gear 5, a second gear 6, a first belt loop 7, a second belt loop 8, and a measuring belt 9. The roller head 2 is rotatably mounted on the nozzle 1. The first gear 5 and the first belt loop 7 are respectively fixedly mounted on the first rotating shaft sleeve 3. The second gear 6 and the second belt loop 8 are respectively fixedly mounted on the second rotating shaft sleeve 4. The first gear 5 is meshed with the second gear 6. The first belt loop 7 and the second belt loop 8 are correspondingly arranged on the same side. The first end of the measuring belt 9 is wound and connected to the first belt loop 7, and the second end of the measuring belt 9 passes through the roller head 2 and is wound and connected to the second belt loop 8.

[0035] During measurement, press and push the roller head 2 on the nozzle 1 to move along the surface of the object to be measured 16, so that the measuring belt 9 led out by the roller head 2 is closely attached to the surface of the object to be measured 16. During the process of the roller head 2 driving the measuring belt 9 to move along the surface of the object to be measured 16, under the action of the measuring belt 9, the first gear 5 and the second gear 6 are driven to rotate meshingly with each other, so that the measuring belt 9 is conveyed from the first belt loop 7 to the roller head 2, and the measuring belt 9 is conveyed from the roller head 2 to the second belt loop 8. Then, by reading the distance that the roller head 2 drives the measuring belt 9 to move along the surface of the object to be measured 16, the creepage distance of the insulator can be obtained. Among them, Figure 1 the arrow direction in is the conveying direction of the measuring belt 9, Figure 6 the object to be measured 16 in is a post insulator, where point a is the starting position of measurement, b is the ending position of measurement, and A is the measurement route. Since the creepage distance is measured by the way of the roller head 2 rolling on the surface of the object to be measured 16, the measuring tool can meet the measurement requirements for the curved surface length of the object to be measured 16.

[0036] Therefore, the insulator creepage distance measuring tool according to the embodiment of the present invention has a simple structure, small volume, light weight, convenient use, low cost, can improve the accuracy of the measurement result, and provides convenience for on-site actual measurement work.

[0037] In some embodiments of the present invention, the insulator creepage distance measuring tool further includes a housing 10. The housing 10 is provided with a measurement port. The first rotating shaft sleeve 3, the second rotating shaft sleeve 4, the first gear 5, the second gear 6, the first belt loop 7, and the second belt loop 8 are all arranged inside the housing 10, realizing the integrated installation of the first rotating shaft sleeve 3, the second rotating shaft sleeve 4, the first gear 5, the second gear 6, the first belt loop 7, and the second belt loop 8 inside the housing 10, thus playing a protective role.

[0038] Among them, the nozzle 1 is arranged at a position on the housing 10 close to the measurement port. The roller head 2 is mounted on the measurement end of the nozzle 1. The measurement end of the nozzle 1 passes through the measurement port and extends outside the housing 10, so as to realize the rolling contact measurement with the surface of the object to be measured 16 through the roller head 2.

[0039] Specifically, the outer diameter of the first gear 5 is larger than that of the second gear 6, facilitating the installation and arrangement of the first gear 5 and the second gear 6 within the housing 10.

[0040] Specifically, the housing 10 includes an upper half-shell and a lower half-shell, which are detachably connected. The overall shape of the housing 10 can be set according to the surface curvature of the object 16 to be measured and the comfort of the user's grip.

[0041] Specifically, the roller head 2 includes a metal rod and a rubber sleeve disposed on the outer surface of the metal rod. Since the metal rod has a certain hardness and toughness, the pressure resistance of the roller head 2 can be improved. By wrapping a rubber sleeve around the outer side of the metal rod, the friction between the measuring tape 9 and the roller head 2 can be increased, so that the measuring tape 9 closely adheres to the surface of the object 16 during the rolling of the roller head 2 along the surface of the object 16.

[0042] In some embodiments of the present invention, the nozzle 1 is fixedly installed on the nozzle fixing column 11, and both ends of the nozzle fixing column 11 are fixedly connected to the inner side walls of the housing 10, thereby realizing the reliable installation of the nozzle 1 on the housing 10.

[0043] In some embodiments of the present invention, the first rotating shaft sleeve 3 is rotatably sleeved on the first fixed shaft 12, and both ends of the first fixed shaft 12 are fixedly connected to the inner side walls of the housing 10. That is, by providing the first fixed shaft 12, the reliable installation of the first rotating shaft sleeve 3 within the housing 10 can be realized, enabling the first rotating shaft sleeve 3 to freely rotate along the first fixed shaft 12, and further driving the first gear 5 and the first belt loop 7 to rotate synchronously.

[0044] Among them, the second rotating shaft sleeve 4 is rotatably sleeved on the second fixed shaft 13, and both ends of the second fixed shaft 13 are fixedly connected to the inner side walls of the housing 10. That is, by providing the second fixed shaft 13, the reliable installation of the second rotating shaft sleeve 4 within the housing 10 can be realized, enabling the second rotating shaft sleeve 4 to freely rotate along the second fixed shaft 13, and further driving the second gear 6 and the second belt loop 8 to rotate synchronously.

[0045] In some embodiments of the present invention, the insulator creepage distance measuring tool further includes a first guiding shaft 14 disposed between the first fixed shaft 12 and the roller head 2. Both ends of the first guiding shaft 14 are fixedly connected to the inner side walls of the housing 10. The second end of the measuring tape 9 sequentially passes through the first guiding shaft 14 and the roller head 2 and then is wound and connected to the second belt loop 8. That is, by providing the first guiding shaft 14, the conveying direction of the measuring tape 9 can be guided.

[0046] Furthermore, the insulator creepage distance measuring tool further includes a second guiding shaft 15 disposed between the second fixed shaft 13 and the roller head 2. The two ends of the second guiding shaft 15 are respectively fixedly connected to the inner side walls of the housing 10. The second end of the measuring tape 9 sequentially passes through the first guiding shaft 14, the roller head 2 and the second guiding shaft 15 and then is wound and connected to the second tape loop 8. That is to say, by providing the second guiding shaft 15, the conveying direction of the measuring tape 9 can be further guided.

[0047] Specifically, according to the real-time usage requirements, one or more first guiding shafts 14 can be provided, and one or more second guiding shafts 15 can be provided, as long as the smooth transmission of the measuring tape 9 can be ensured.

[0048] In some embodiments of the present invention, a roller head mounting seat (not shown in the figure) is provided at the measuring end of the nozzle 1. The roller head mounting seat includes a first mounting plate, a second mounting plate and a connecting shaft. The first end of the first mounting plate and the first end of the second mounting plate are respectively fixedly connected to the measuring end, and the two ends of the connecting shaft are respectively fixedly connected to the second end of the first mounting plate and the second end of the second mounting plate correspondingly. The roller head 2 is rotatably sleeved on the connecting shaft. That is to say, by providing the roller head mounting seat, the reliable mounting of the roller head 2 at the measuring end of the nozzle 1 can be realized, so that the roller head 2 can freely roll on the roller head mounting seat.

[0049] Specifically, according to the actual usage requirements, the measuring tape 9 can adopt the following three structural forms.

[0050] In the first embodiment of the present invention, as Figure 3 shown, the measuring tape 9 includes a PET film 901 and an adhesive layer 902 that are mutually attached. Among them, the adhesive layer 902 can adopt a coating made of a mixture of titanium dioxide, heat-resistant resin, self-adhesive and polystyrene, etc. The adhesive layer 902 has a certain adhesiveness, so that it can adhere to the surface of the object to be measured.

[0051] During the measurement process, when the roller head 2 drives the measuring tape 9 to roll and contact the surface of the object to be measured 16, the adhesive layer 902 will separate from the PET film 901 and adhere to the surface of the object to be measured 16. That is to say, through the attachment trace of the adhesive layer 902 on the surface of the object to be measured 16, the measurement track when measuring the surface of the object to be measured 16 can be visually seen, which helps to improve the accuracy of the measurement result. That is to say, when the measurement track does not meet the measurement requirements, the measurement can be repeated until the measurement requirements are met.

[0052] When measuring the creepage distance of the surface of the object to be measured 16 using the measuring tape 9 of this embodiment, when reading the measured value, it is necessary to open the outer shell 10, then remove the measuring tape 9 on the second tape loop 8, and measure the length of the PET film 901 after the adhesive layer 902 has been separated, so as to obtain the surface length of the object to be measured 16, and this surface length is the creepage distance of the object to be measured 16.

[0053] When measuring the creepage distance of the surface of the object to be measured 16 using the measuring tape 9 of this embodiment, the rolling action of the rolling head 2 can achieve a tight fit between the measuring tape 9 and the surface of the object to be measured. During the measurement process, since the PET film 901 and the adhesive layer 902 of the measuring tape 9 are separated from each other, not only can the measurement trajectory be clearly seen, but also the problem of extension and deformation when using existing ordinary tapes for measurement can be avoided. Since the thickness of the measuring tape 9 is about 0.1 mm, the influence on the measurement result caused by the thickness problem can be effectively reduced.

[0054] In the second embodiment of the present invention, as Figure 4 shown, the measuring tape 9 includes a mutually adhered PET film 901 and an adhesive layer 902, and measuring scales are provided on the PET film 901. Among them, the adhesive layer 902 can be a coating made by mixing titanium dioxide, heat-resistant resin, self-adhesive and polystyrene, etc. The adhesive layer 902 has a certain adhesiveness, so that it can adhere to the surface of the object to be measured.

[0055] During the measurement process, when the rolling head 2 drives the measuring tape 9 to roll and contact the surface of the object to be measured 16, the adhesive layer 902 will be separated from the PET film 901 and adhere to the surface of the object to be measured 16. That is to say, through the adhesion trace of the adhesive layer 902 on the surface of the object to be measured 16, the measurement trajectory when measuring the surface of the object to be measured 16 can be intuitively seen, which helps to improve the accuracy of the measurement result. That is to say, when the measurement trajectory does not meet the measurement requirements, it can be re-measured until the measurement requirements are met.

[0056] When measuring the creepage distance of the surface of the object to be measured 16 using the measuring tape 9 of this embodiment, when reading the measured value, first, it is necessary to read the scale value of the measuring tape 9 at the measurement start position, and then after the measurement is completed, read the scale value of the measuring tape 9 at the measurement end position, and then take the difference between the two scale values to obtain the creepage distance of the object to be measured 16.

[0057] The creepage distance of the surface of the object under test 16 is measured using the measuring tape 9 of this embodiment. Through the rolling action of the rolling head 2, the measuring tape 9 can be closely attached to the surface of the object under test. During the measurement, since the PET film 901 and the adhesive layer 902 of the measuring tape 9 are separated from each other, not only can the measurement trajectory be clearly seen, but also the problem of stretching deformation when using an existing ordinary tape for measurement can be avoided. Since the thickness of the measuring tape 9 is about 0.1 mm, the influence on the measurement result caused by the thickness problem can be effectively reduced.

[0058] When using the measuring tape 9 as shown in Figure 3 and Figure 4 for measurement, after the measurement is completed, the adhesive layer 902 remaining on the surface of the object under test 16 needs to be removed. To facilitate the removal of the adhesive layer 902, the surface of the object under test 16 is preferably made of ceramic or glass. After the measurement is completed, the surface of the object under test 16 can be directly wiped with alcohol, and the adhesive layer 902 attached to the surface of the object under test 16 can be easily removed without damaging the surface of the object under test 16.

[0059] In the third embodiment of the present invention, as shown in Figure 5 , the measuring tape 9 is a PVC flexible ruler tape, and measuring scales are provided on the PVC flexible ruler tape. That is, when using this measuring tape 9 for measurement, no measurement marks will be left on the surface of the object under test 16. Therefore, in order to increase the friction on the surface of the measuring tape 9 to ensure that the rolling head 2 can drive the measuring tape 9 to move synchronously on the surface of the object under test 16 during the measurement, rubber can be added to the manufacturing material of the PVC flexible ruler tape, and at the same time, the amount of lubricant can be reduced. Alternatively, a matte PVC material can also be used to make the PVC flexible ruler tape.

[0060] When using the measuring tape 9 of this embodiment to measure the creepage distance of the surface of the object under test 16, when reading the measurement value, first, the scale value of the measuring tape 9 at the measurement start position needs to be read. Then, after the measurement is completed, the scale value of the measuring tape 9 at the measurement end position is read, and the two scale values are subtracted to obtain the creepage distance of the object under test 16.

[0061] Using the measuring tape 9 of this embodiment to measure the creepage distance of the surface of the object to be measured 16, the rolling action of the rolling head 2 can achieve a tight fit between the measuring tape 9 and the surface of the object to be measured, thus ensuring the accuracy of the measuring structure, and the measuring tape 9 can be reused multiple times, further reducing the cost. Since when using the measuring tape 9 of this embodiment to measure the creepage distance of the surface of the object to be measured 16, no measuring traces will be left on the surface of the object to be measured 16, so the measuring tape 9 is particularly suitable for measuring the object to be measured 16 whose surface is made of non-ceramic or non-glass material. After the measurement, there is no need to remove the residues, so the surface of the object to be measured 16 will not be damaged.

[0062] The embodiment of the present invention also provides a usage method of an insulator creepage distance measuring tool based on the above embodiment, which specifically includes the following steps:

[0063] Contact the rolling head 2 on the nozzle 1 with the object to be measured 16, so that a predetermined angle is formed between the nozzle 1 and the surface of the object to be measured 16, and then press and push the rolling head 2 to move along the surface of the object to be measured 16, so that the measuring tape 9 led out from the rolling head 2 is in close contact with the surface of the object to be measured 16. Among them, the predetermined angle is preferably 45 degrees.

[0064] When the rolling head 2 is pushed to the predetermined measurement position, stop pushing the rolling head 2, make the nozzle 1 perpendicular to the surface of the object to be measured 16, and then separate the rolling head 2 from the surface of the object to be measured 16.

[0065] Read the distance that the measuring tape 9 moves along the surface of the object to be measured 16, and this distance is the creepage distance of the insulator of the object to be measured 16.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An insulator creepage distance measuring tool, characterized in that, it includes a pressure nozzle, a roller head, a first rotating shaft sleeve, a second rotating shaft sleeve, a first gear, a second gear, a first belt loop, a second belt loop and a measuring tape. The roller head is rotatably installed on the pressure nozzle. The first gear and the first belt loop are respectively fixedly installed on the first rotating shaft sleeve. The second gear and the second belt loop are respectively fixedly installed on the second rotating shaft sleeve. The first gear is meshed and connected with the second gear. The first belt loop and the second belt loop are arranged corresponding to each other on the same side. The first end of the measuring tape is wound and connected to the first belt loop. The second end of the measuring tape passes through the roller head and is wound and connected to the second belt loop; It further includes a housing. The housing is provided with a measuring port. The first rotating shaft sleeve, the second rotating shaft sleeve, the first gear, the second gear, the first belt loop and the second belt loop are all arranged inside the housing. The pressure nozzle is arranged at a position on the housing close to the measuring port. The roller head is installed at the measuring end of the pressure nozzle. The measuring end passes through the measuring port and extends outside the housing; The pressure nozzle is fixedly installed on a pressure nozzle fixing column. The two ends of the pressure nozzle fixing column are respectively fixedly connected to the inner side walls of the housing; The first rotating shaft sleeve is rotatably sleeved on a first fixed shaft. The two ends of the first fixed shaft are respectively fixedly connected to the inner side walls of the housing; The second rotating shaft sleeve is rotatably sleeved on a second fixed shaft. The two ends of the second fixed shaft are respectively fixedly connected to the inner side walls of the housing; It further includes a first guiding shaft arranged between the first fixed shaft and the roller head. The two ends of the first guiding shaft are respectively fixedly connected to the inner side walls of the housing. The second end of the measuring tape sequentially passes through the first guiding shaft and the roller head; It further includes a second guiding shaft arranged between the second fixed shaft and the roller head. The two ends of the second guiding shaft are respectively fixedly connected to the inner side walls of the housing. The second end of the measuring tape sequentially passes through the first guiding shaft, the roller head and the second guiding shaft; The measuring end is provided with a roller head mounting seat. The roller head mounting seat includes a first mounting plate, a second mounting plate and a connecting shaft. The first end of the first mounting plate and the first end of the second mounting plate are respectively fixedly connected to the measuring end. The two ends of the connecting shaft are respectively fixedly connected corresponding to the second end of the first mounting plate and the second end of the second mounting plate. The roller head is rotatably sleeved on the connecting shaft.

2. The insulator creepage distance measuring tool according to claim 1, characterized in that, the measuring tape includes a PET film and an adhesive layer that are mutually adhered.

3. The insulator creepage distance measuring tool according to claim 2, characterized in that, measuring scales are provided on the PET film.

4. The insulator creepage distance measuring tool according to claim 1, characterized in that, the measuring tape is a PVC flexible ruler tape, and measuring scales are provided on the PVC flexible ruler tape.

5. A method for using the insulator creepage distance measuring tool according to any one of claims 1 to 4, Characterized in that, Comprising: Bring the roller head on the nozzle into contact with the object to be measured, so that a predetermined angle is formed between the nozzle and the surface of the object to be measured, and then press and push the roller head to move along the surface of the object to be measured, so that the measuring tape led out from the roller head is closely attached to the surface of the object to be measured; When the roller head is pushed to the predetermined measurement position, stop pushing the roller head, make the nozzle perpendicular to the surface of the object to be measured, and then separate the roller head from the surface of the object to be measured; Read the distance that the measuring tape moves along the surface of the object to be measured.

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