Non-touch transfer hanging point fitting for insulator in salt deposit density test and use method of non-touch transfer hanging point fitting

Abstract

The invention discloses a salt deposit density test insulator touch-free transfer hanging point fitting and a use method thereof, and belongs to the technical field of insulator salt deposit density test.The salt deposit density test insulator touch-free transfer hanging point fitting comprises a cross arm angle steel connecting piece and an insulator connecting piece, the insulator connecting piece comprises an insulation rope hanging plate, a bowl head and a first ball head, the bowl head is connected to the upper portion of the insulation rope hanging plate, and the first ball head is connected to the lower portion of the insulation rope hanging plate; the first ball head is connected to the lower part of the insulating rope hanging plate; and the insulator connecting piece and the cross arm angle steel connecting piece as well as the insulator connecting piece and the insulator are both of a quick disintegration hooking structure. The insulator for salt density testing does not need to touch the surface of the insulator in the transferring and hooking process, and it is guaranteed that the salt density testing process meets the requirement of the equivalent salt density standard. According to the invention, the fixing stability of the insulator string can be ensured, redundant touch of operators on the surface of the insulator is avoided, the risk early warning time is shortened, the working efficiency is improved, the operation safety coefficient is improved, and safe and stable operation of a power grid is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of insulator salt density testing, and in particular relates to a non-contact transfer hanging point hardware for a salt density testing insulator and a use method thereof. Background Art

[0002] In order to assess the degree of pollution in the environment where the transmission line is located, it is necessary to frequently carry out salt density testing during the operation and maintenance of the transmission line. The salt density test is to regularly rotate the insulator strings on the operating line, and perform salt density tests on the removed insulator strings to test the salt density and ash density values ​​of the dirt attached to the test insulators. According to the latest national requirements for salt density test insulators, the salt density test insulator string consists of at least 7 insulators. In the past, the insulator string consisted of 3 insulators, which were tied to the cross arm of the operating tower with iron wire. The 7 porcelain insulators weigh more than 30kg, and the iron wire binding is easy to fall off and cause danger; if the iron wire used for binding is not used properly, there is a risk of short circuit tripping of the line, and at the same time, it causes serious harm to the operators; iron wire binding consumes a long time, affecting the efficiency of the operation.

[0003] The Chinese utility model patent with application number 201220055943.0 discloses a hanging fixture for an insulator salt density value test string, including a fixture body, fastening bolts, fastening nuts, and reinforcing ribs. The upper part of the fixture body is connected to a pressure plate by fastening bolts and fastening nuts, the lower end of the fixture body is movably connected to a right-angle hanging plate by fastening bolts and fastening nuts, and the lower end of the right-angle hanging plate is movably connected to a ball head ring by fastening bolts and fastening nuts. The hanging fixture for the insulator salt density value test string can reduce the labor intensity of the installers of the insulator salt density value test string.

[0004] The Chinese invention patent with application number 201910987705.X ​​discloses a salt density test insulator string suspension device, including an insulator fixing ball head, a first angle steel fixing screw, a second angle steel fixing screw, an angle steel fixing block and a nut; the insulator fixing ball head is connected to one end of the first angle steel fixing screw, the other end of the first angle steel fixing screw is a stud, and the angle steel fixing block and the nut are installed on the stud in sequence; one end of the second angle steel fixing screw is provided with a sleeve, the sleeve is sleeved on the first angle steel fixing screw, the other end of the second angle steel fixing screw is provided with a stud, and the angle steel fixing block and the nut are installed on the stud in sequence; the two angle steel fixing blocks are respectively fixed to the two right-angle sides of the tower angle steel, and the insulator string is installed on the insulator fixing ball head.

[0005] During the transfer process of the insulator string used for salt density test, it is required to avoid touching the surface of the insulator as much as possible to prevent the dirt on the surface of the insulator string from being wiped off by touching, resulting in inaccurate test results. The shortcomings of the above existing solutions are that the problem of touching during the transfer process cannot be avoided, because during the suspension process of the insulator string, the insulator string needs to be lifted and then the clamp is connected to the cross arm angle steel of the high tower. The weight and length of the insulator string will limit the suspension process and even cause accidental falling, causing safety problems. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a touch-free transfer hanging point hardware for salt density test insulators and a method of using the same, and proposes a crossarm angle steel connector and an insulator connector that can be quickly disassembled. When hanging and rotating salt density test insulator strings, the insulator strings can be quickly and reliably connected or removed, ensuring the safety of salt density testing, avoiding unnecessary touching of the insulator surface by operators, reducing the labor intensity of high-altitude operators, improving work efficiency, and obtaining accurate test results.

[0007] To achieve the above object, the present invention is implemented through the following technical solutions:

[0008] According to a first aspect of the present invention, there is provided a non-touch transfer hanging point hardware for a salt-tight test insulator, comprising a cross-arm angle steel connector and an insulator connector, wherein the insulator connector comprises an insulating rope hanging plate, a bowl head and a first ball head, wherein the bowl head is connected to the upper part of the insulating rope hanging plate, and the first ball head is connected to the lower part of the insulating rope hanging plate; a quick disassembly hanging structure is provided between the insulator connector and the cross-arm angle steel connector, and between the insulator connector and the insulator.

[0009] Furthermore, the cross-arm angle steel connecting member includes a longitudinal hook plate and a transverse hook plate, the top hook head of the longitudinal hook plate matches the upper edge of the cross-arm angle steel, and the bottom of the longitudinal hook plate is connected to a second ball head; the hook head at one end of the transverse hook plate matches the side edge of the cross-arm angle steel, and the other end of the transverse hook plate is provided with a screw rod that matches the long hole on the longitudinal hook plate, and a locking nut is screwed on the screw rod.

[0010] Furthermore, the insulating rope hanging plate is provided with at least two rope threading holes, and the at least two rope threading holes are arranged to be symmetrically distributed.

[0011] Furthermore, any two or more of the insulating rope hanging plate, the bowl head and the first ball head are integrated fixed structures.

[0012] Furthermore, any two or more of the insulating rope hanging plate, the bowl head and the first ball head are detachable connection structures.

[0013] Furthermore, an R pin fixing hole is provided on the bowl head.

[0014] Furthermore, the size of the first ball head matches the cup head model of the insulator to be tested.

[0015] Furthermore, the insulator is a standard ceramic insulator with a bowl head.

[0016] Furthermore, the bowl head and the first ball head are made of alloy steel material with a tensile strength of more than 300 MPa, and the surface is plated with a zinc layer of more than 100-200 um.

[0017] According to a second aspect of the present invention, a method for non-contact transfer of hanging point fittings using the salt density test insulator is provided, and the operating steps of the method are as follows:

[0018] Step S101: firstly, install the cross arm angle steel connector onto the cross arm angle steel on the tower pole;

[0019] Step S102: Hanging the insulator connector onto the first insulator of the insulator string;

[0020] Step S103: Pass the insulating rope onto the insulating rope hanging plate and lift the insulating rope with a sling;

[0021] Step S104: transferring the insulator string to the ground to prepare for salt density test;

[0022] Step S105: Install a new string of insulators onto the cross-arm angle steel connector using new insulator connectors and insulating ropes, and the operation is completed.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] First, the cross-arm angle steel connector and insulator connector that can be quickly disassembled make it possible to quickly and reliably connect or remove the insulator string, thus preventing the operator from removing dirt from the insulator surface due to unnecessary contact with the insulator surface, thereby improving the accuracy of the salt density test and promptly discovering problems through reference comparison of insulator dirt detection;

[0025] Second, reduce the labor intensity of high-altitude workers and improve work efficiency;

[0026] Third, the hardware structure is optimized to improve the reliability and durability of the hardware. It has the advantages of small size, light weight and easy to carry.

[0027] Fourth, it can adapt to various common pole tower cross arm specifications, ensure the stability of insulator string fixation, and ensure the safety of salt density test operations. It has a reasonable structure, is easy to use, and can be reused. It can effectively shorten the power outage operation time, reduce the risk warning time, and improve the operation safety factor. It embodies good economic benefits, promotes the advancement of power maintenance technology, and is conducive to the safe and stable operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to understand the present invention and do not constitute improper limitations of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the use state of the non-contact transfer hanging point hardware of the salt density test insulator according to the embodiment of the present invention;

[0030] Figure 2 2 is a schematic diagram of the structure of the cross arm angle steel connector in an embodiment of the present invention;

[0031] Figure 3 is a structural schematic diagram of an insulator connector from a first perspective in an embodiment of the present invention;

[0032] Figure 4 is a structural schematic diagram of an insulator connector from a second perspective in an embodiment of the present invention;

[0033] Figure 5 is a schematic diagram of the longitudinal hook plate structure in an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the transverse hook plate structure in an embodiment of the present invention.

[0035] In the figure: 1-cross arm angle steel connector, 2-insulator connector, 3-insulating rope hanging plate, 4-bowl head, 5-first ball head, 6-longitudinal hook plate, 7-transverse hook plate, 8-cross arm angle steel, 9-second ball head, 10-screw, 11-nut, 12-R pin fixing hole, 13-rope threading hole, 14-R pin, 15-insulator. DETAILED DESCRIPTION

[0036] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the present invention is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of the present invention and the actual situation. In order to avoid confusing the essence of the present invention, known methods, processes, processes, components and circuits are not described in detail. It should be understood that the terms "first" and "second" are only used for descriptive purposes, and the features defined as "first" and "second" do not represent any order, quantity or importance, but are only used to distinguish different components.

[0037] The components of the embodiments of the present invention generally described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the invention claimed, but only represents selected embodiments of the present invention.

[0038] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A schematic structural diagram of an embodiment of a non-touch transfer hanging point hardware for a salt density test insulator of the present invention is shown, wherein the non-touch transfer hanging point hardware for a salt density test insulator comprises a cross arm angle steel connector 1 and an insulator connector 2, wherein the insulator connector 2 comprises an insulating rope hanging plate 3, a bowl head 4 and a first ball head 5, wherein the bowl head 4 is connected to the upper part of the insulating rope hanging plate 3, and the first ball head 5 is connected to the lower part of the insulating rope hanging plate 3; a quick disassembly hanging structure is provided between the insulator connector 2 and the cross arm angle steel connector 1, and between the insulator connector 2 and the insulator 15.

[0039] The cross-arm angle steel connector 1 includes a longitudinal hook plate 6 and a transverse hook plate 7. The top hook head of the longitudinal hook plate 6 matches the upper edge of the cross-arm angle steel 8, and a second ball head 9 is connected to the bottom of the longitudinal hook plate 6; the hook head at one end of the transverse hook plate 7 matches the side edge of the cross-arm angle steel 8, and the other end of the transverse hook plate 7 is connected to the long hole on the longitudinal hook plate 6 through a screw rod 10 and a nut 11.

[0040] At least two rope threading holes 13 are provided on the insulating rope hanging plate 3 and are arranged in pairs. The two rope threading holes 13 are symmetrically distributed on the left and right. Weight reduction holes can also be provided on the insulating rope hanging plate 3 according to the need of weight reduction.

[0041] The insulating rope hanging plate 3, the bowl head 4 and the first ball head 5 are an integrated fixed structure, and a detachable connection structure of any two or more components can also be used. The integrated fixed structure has greater strength, and the detachable connection structure is conducive to reducing manufacturing costs. The bowl head 4 is provided with an R pin fixing hole 12, and an R pin 14 can be inserted after connection to prevent falling off and disintegration.

[0042] The size of the first ball head 5 matches the cup head model of the insulator 15 to be tested. The insulator 15 in the embodiment of the present invention is a standard ceramic insulator with a cup head. The cup head 4 and the first ball head 5 are made of alloy steel material with a tensile strength of more than 300 MPa, and the surface is plated with a zinc layer of 100-200 microns, which plays a role in improving the surface hardness of the metal material and increasing the wear resistance.

[0043] The method for using the embodiment of the non-touching transfer hanging point hardware of the salt density test insulator of the present invention is to adopt the cross-arm angle steel connector 1 and the insulator connector 2 of the quick disassembly hanging structure, so that during the transfer and hanging process of the insulator 15 of the salt density test, it is only necessary to pull and lift the insulator connector 2 with an insulating rope, without touching the surface of the insulator 15, thereby ensuring that the salt density test process meets the requirements of the equivalent salt density standard, and the operation steps are as follows: 1) first install the cross-arm angle steel connector 1 on the cross-arm angle steel 8 on the tower pole; 2) hang the insulator connector 2 on the first insulator 15 of the insulator string; 3) pass the insulating rope through all the rope threading holes 13 on the insulating rope hanging plate 3, and lift the insulating rope with a sling; 4) transfer the insulator string to the ground, and prepare for the salt density test; 5) install a new string of insulators on the cross-arm angle steel connector 1 with a new insulator connector 2 and insulating rope, and the operation is completed.

[0044] In the embodiment of the present invention, the withstand voltage level of the insulating rope and insulating rod used should not be lower than the preventive test level of live working tools and equipment to ensure the safety of the test.

[0045] Social benefits:

[0046] The cross arm angle steel connector 1 and the insulator connector 2 that can be quickly disassembled in the present invention enable the insulator string to be quickly and reliably connected or removed, and prevent the dirt on the surface of the insulator 15 from falling off due to unnecessary touching of the surface by the operator, thereby improving the accuracy of the test of the salt density value, and timely discovering the problem by comparing and comparing the detection of dirt on the insulator 15; the insulating rope is passed through the rope threading hole 13 on the insulating rope hanging plate 3, and the insulating rope is lifted by a sling, thereby reducing the labor intensity of the high-altitude operators and improving the work efficiency;

[0047] The invention optimizes the hardware structure, improves the reliability and durability of the hardware, has the advantages of small size and light weight, the actual weight of a single set is 1.9kg, and is easy to carry; at the same time, it can also adapt to a variety of common pole tower cross arm specifications (such as: ∟75*75, ∟90*90, ∟120*120, etc.) and 15 models of insulators (U70 / 146, XWP-70, XWP-100, etc.), can ensure the stability of the insulator string fixation, and make the salt density test operation safe, with reasonable structure, easy to use, reusable, effectively shorten the power outage operation time, reduce the risk warning time, and improve the operation safety factor; it embodies good economic benefits, promotes the progress of power maintenance technology, and is conducive to the safe and stable operation of the power grid.

Claims

1. Salt density test insulator non-touch transfer hanging point hardware, including cross arm angle steel connector and insulator connector, characterized in that: The insulator connector comprises an insulating rope hanging plate, a bowl head and a first ball head, wherein the bowl head is connected to the upper part of the insulating rope hanging plate, and the first ball head is connected to the lower part of the insulating rope hanging plate; the insulator connector and the cross arm angle steel connector, and the insulator connector and the insulator are both quick disassembly hanging structures.

2. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: The cross-arm angle steel connecting piece includes a longitudinal hook plate and a transverse hook plate. The top hook head of the longitudinal hook plate matches the upper edge of the cross-arm angle steel, and a second ball head is connected to the bottom of the longitudinal hook plate. The hook head at one end of the transverse hook plate matches the side edge of the cross-arm angle steel, and the other end of the transverse hook plate is provided with a screw rod that matches the long hole on the longitudinal hook plate, and a locking nut is screwed on the screw rod.

3. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: The insulating rope hanging plate is provided with at least two rope threading holes, and the at least two rope threading holes are arranged to be symmetrically distributed.

4. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: Any two or more of the insulating rope hanging plate, the bowl head and the first ball head are integrated fixing structures.

5. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: Any two or more of the insulating rope hanging plate, the bowl head and the first ball head are detachable connection structures.

6. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: The bowl head is provided with an R pin fixing hole.

7. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: The size of the first ball head matches the cup head model of the insulator to be tested.

8. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1 is characterized in that: The insulator is a standard ceramic insulator with a bowl head.

9. The non-contact transfer hanging point hardware for salt-tight test insulators according to claim 1, characterized in that: The bowl head and the first ball head are made of alloy steel material with a tensile strength of more than 300 MPa, and the surface is plated with a zinc layer of more than 100-200 um.

10. A method for using the salt density test insulator according to claim 1 to transfer the hanging point hardware without touching, characterized in that: The steps of this method are as follows: Step S101: firstly, install the cross arm angle steel connector onto the cross arm angle steel on the tower pole; Step S102: Hanging the insulator connector onto the first insulator of the insulator string; Step S103: Pass the insulating rope onto the insulating rope hanging plate and lift the insulating rope with a sling; Step S104: transferring the insulator string to the ground to prepare for salt density test; Step S105: Install a new string of insulators onto the cross-arm angle steel connector using new insulator connectors and insulating ropes, and the operation is completed.

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