A lightning arrester test lifting test bench

Abstract

The present invention relates to the technical field of lifting devices, in particular to a lightning arrester test lifting test bench, which comprises a loading mechanism, which comprises a multifunctional support seat, an insulating pad and a test bench assembly; the insulating pad is installed at the lower end of the multifunctional support seat, and the test bench assembly is installed at the lower end of the insulating pad; and a moving mechanism, which comprises a lifting assembly installed below the test bench assembly, and a ground anchor pulley installed at the lower end corner of the lifting assembly; the universal strip holes provided on the test platform can adapt to various types of lightning arresters, reduce the installation switching time, and improve the test efficiency; the height adjustable function of the lightning arrester test platform is realized by installing the lifting assembly, and the test platform is foldable, which is easy to carry and store.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices, in particular to a lifting test bench for lightning arrester tests. Background Art

[0002] Electricity is usually transmitted from the place where it is generated, such as a power plant, to the place where it is used by overhead cables. If such cables are struck by lightning, overvoltage will appear on the cables, which may damage the electrical equipment connected to the transmission system. For this reason, one or more lightning arresters are usually connected to the transmission system. These lightning arresters serve as overvoltage suppression devices.

[0003] There are many different types of arresters. One common type of arrester is a column type, with multiple conductive elements stacked together. The conductive elements have non-linear characteristics. They can be made of suitable materials, such as zinc oxide, to obtain this characteristic. In a common example of this type of arrester, the conductive element is a circular cross-section and is mounted on an insulating rod.

[0004] However, the existing test brackets for conventional types of lightning arresters are temporarily welded and the height cannot be adjusted. The bracket still occupies a large space after use, which is inconvenient to use. The lightning arrester fixing flange is not versatile enough and cannot adapt to the bolt spacing of lightning arrester flanges of different voltage levels. Summary of the invention

[0005] This solution mainly solves the problem that during the use of the existing technical solution, during the sewage treatment process, the amount of sludge accumulation is large, which causes the desludging device to increase the load and trip.

[0006] In view of the problem that the test bracket in the above-mentioned and / or existing arrester test lifting test bench cannot be raised or lowered, and the arrester test mounting base does not have universal compatibility, the present invention is proposed.

[0007] Therefore, the problem to be solved by the present invention is how to provide a lightning arrester test lifting test bench.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a loading mechanism, which includes a multifunctional support seat, an insulating pad and a test bench assembly;

[0009] The insulating pad is mounted on the lower end of the multifunctional support seat, which is connected to the outer end of the test bench assembly; and,

[0010] The moving mechanism is arranged at the lower end of the test bench assembly, and comprises a lifting assembly installed below the test bench assembly, and a ground anchor pulley installed at the corner of the lower end of the lifting assembly.

[0011] As a preferred solution of the lightning arrester test lifting test bench described in the present invention, the multifunctional support seat includes a support platform arranged at the upper end of the insulating pad, fixing screw holes opened on the surface of the support platform and distributed equidistantly, and wiring terminals installed on the upper end of the support platform.

[0012] As a preferred solution of the arrester test lifting test bench described in the present invention, the test bench assembly includes a test platform arranged at the lower end of the insulating pad, a microammeter installed at the upper end of the test platform, a first grounding terminal opened on the surface of the test platform, and a universal bar hole opened on the surface of the test platform, wherein the test bench assembly is also provided with a wiring, one end of the wiring is connected to the microammeter, and the other end thereof is connected to the first grounding terminal.

[0013] As a preferred solution of the arrester test lifting test bench described in the present invention, the lifting assembly includes a lifting component installed at the lower end of the test bench assembly, a connecting component installed in the middle of the lifting component, and a base component installed at the bottom end of the lifting component.

[0014] As a preferred solution of the arrester test lifting test bench described in the present invention, the lifting component includes an inner support rod for supporting and connecting the test bench assembly and the base component, and an outer support rod cross-hinged with the center end of the inner support rod, wherein the inner support rod and the outer support rod are symmetrically arranged in a pair.

[0015] As a preferred solution of the arrester test lifting test bench described in the present invention, the connecting component includes a sliding part installed at the lower end of the test platform and an inner connecting rod for movably connecting the inner support rod, wherein the inner connecting rod passes through the sliding part, and the two can cooperate with each other.

[0016] As a preferred solution of the lightning arrester test lifting test bench described in the present invention, the connecting component also includes an external connecting rod for movably connecting the external support rod, and sliding rollers installed at both ends of the external connecting rod, wherein the sliding rollers can slide on the inner side of the base component.

[0017] As a preferred solution of the arrester test lifting test bench described in the present invention, the connecting component also includes a pair of connecting members installed at the lower end of the test platform and a crossbeam for movably connecting the inner support rod and the outer support rod; the connecting member is also provided with another pair inside the base component.

[0018] As a preferred solution of the lightning arrester test lifting test bench described in the present invention, the base component includes a metal frame, a plurality of symmetrical pin holes opened at both ends of the outer surface of the metal frame, and a limit pin installed in the pin hole, wherein the limit pin cooperates with the pin hole to control the position of the sliding roller.

[0019] As a preferred solution of the lightning arrester test lifting test bench described in the present invention, the base component also includes a second grounding terminal opened on the outer surface and bottom of the metal frame, wherein the base component is also provided with a grounding line, and the grounding line is arranged at the first grounding terminal of the test bench assembly and extends through the first grounding terminal to the second grounding terminal of the base component, and it extends from the second grounding terminal and the end is grounded.

[0020] The beneficial effects of the present invention are as follows: by opening universal strip holes on the test platform, it can adapt to various types of lightning arresters, reducing installation switching time and improving test efficiency; by installing a lifting component, the height adjustable function of the lightning arrester test platform is achieved, and the test platform is foldable for easy carrying and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described at the bottom are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 A three-dimensional diagram of the loading mechanism provided by the present invention.

[0023] Figure 2 A three-dimensional diagram of the mobile mechanism provided by the present invention.

[0024] Figure 3 A dissected diagram of the mobile mechanism provided by the present invention.

[0025] Figure 4 The overall front view provided by the present invention.

[0026] Figure 5 A three-dimensional diagram of the overall working status provided by the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides a lightning arrester test lifting test bench: comprising, a loading mechanism 100, which includes a multifunctional support seat 101, an insulating pad 102 and a test bench assembly 103; the insulating pad 102 is installed at the lower end of the multifunctional support seat 101, which is connected to the outer end of the test bench assembly 103; and a moving mechanism 200, which is arranged at the lower end of the test bench assembly 103, and includes a lifting assembly 201 installed below the test bench assembly 103, and a ground pulley 202 installed at the lower end corner of the lifting assembly 201; the lightning arrester is supported by installing the multifunctional support seat 101, and multiple lightning arresters can be supported. At the same time, in order to cooperate with different powers and different sizes and types The multifunctional support seat 101 can be disassembled and the lightning arrester can be directly installed on the test bench assembly 103, which reduces the installation switching time and improves the test efficiency. At the same time, an insulating pad 102 is installed between the multifunctional support seat 101 and the test bench assembly 103 to prevent excess current of the lightning arrester from entering the test bench assembly 103 and prevent leakage of the multifunctional support seat 101 from affecting the test result of the test bench assembly. At the same time, by installing a moving mechanism 200 at the lower end of the loading mechanism 100, on the one hand, the height adjustment of the loading mechanism 100 is realized by the lifting assembly 201 included in the moving mechanism 200, and on the other hand, the flexible movement of the loading mechanism 100 is realized by the anchor pulley 202 included in the moving mechanism 200.

[0033] Furthermore, the multifunctional support seat 101 includes a support platform 101a arranged at the upper end of the insulating pad 102, fixing screw holes 101b opened on the surface of the support platform 101a and equidistantly distributed, and a wiring terminal 101c installed at the upper end of the support platform 101a; by opening the fixing screw hole 101b on the support platform 101a of the multifunctional support seat 101, the lightning arrester is inserted into the fixing screw hole 101b and is tightened and fixed at the lower end of the fixing screw hole 101b with screws, thereby ensuring the stability and removability of the lightning arrester. At the same time, by opening the wiring terminal 101c on the support platform 101a, wiring can be connected to conduct the current received by the multifunctional support seat 101 from the lightning arrester, and these currents can flow to other locations through the wiring installed at the wiring terminal 101c.

[0034] Specifically, the test bench assembly 103 includes a test platform 103a arranged at the lower end of the insulating pad 102, a microammeter 103b installed at the upper end of the test platform 103a, a first grounding terminal 103c opened on the surface of the test platform 103a, and a universal bar hole 103d opened on the surface of the test platform 103a, wherein the test bench assembly 103 is also provided with a wiring 103e, one end of the wiring 103e is connected to the microammeter 103b, and the other end is connected to the first grounding terminal 103c; the current drawn from the lightning arrester by the multifunctional support seat 101 can flow to the microammeter 103b installed on the test platform 103a through the wiring 103e installed at the wiring terminal 101c, and data detection can be performed on the drawn current. The test platform 103a is provided with a first grounding terminal 103c, thereby recording the test data. At the same time, by arranging a first grounding terminal 103c on the test platform 103a, a ground wire can be installed on the test platform 103a, and the excess current can be cleared to ensure the stable operation of the microammeter 103b and reduce the error of the detection data. On the other hand, a universal bar hole 103d is also provided on the surface of the test platform 103a, and its function is the same as that of the fixing screw hole 101b. Lightning arresters of different shapes and different base types can be installed on the surface of the test platform 103a through the asymmetrically arranged universal bar holes 103d, and then fixed at the lower end of the universal bar hole 103d by a screw of corresponding size, which also has the same stability and detachability as the multi-functional support base 101.

[0035] The implementation process of this embodiment is to first install the lightning arrester through the equidistantly distributed fixing screw holes 101b opened on the support platform 101a. When encountering lightning arresters of different types of bases or different sizes, the multifunctional support base 101 can be disassembled, and the lightning arrester can be directly installed on the universal bar holes 103d opened on the surface of the test bench component 103. The unequally distributed universal bar holes 103d can adapt to various types of bases. After installing different types of lightning rods on the support platform 101a or the test platform 103a, the test is carried out, and the test current collected by the platform is introduced into the microammeter 103 installed on the test platform 103a through the wiring 103e led out from the wiring terminal 101c b, detect and collect specific data of the current. In this process, in order to prevent the current multi-functional support seat 101 or other types of lightning arrester loopholes from affecting the data detection of the microammeter 103b, an insulating pad 102 is installed between the multi-functional support seat 101 and the test bench assembly. At the same time, in order to eliminate errors in multiple tests, a first grounding terminal 103c is opened on the surface of the test platform 103a, and a ground wire can be installed inside the first grounding terminal 103c to clear the excess current after detection. Finally, the height adjustment of the loading mechanism 100 is achieved through the lifting assembly 201 included in the moving mechanism 200, and the flexible movement of the loading mechanism 100 is achieved through the anchor pulley 202 included in the moving mechanism 200.

[0036] Example 2

[0037] Reference Figure 2 and Figure 4 , which is the second embodiment of the present invention. Different from the first embodiment, this embodiment provides an operating method for a moving component.

[0038] The lifting component 201 includes a lifting component installed at the lower end of the test bench component 103, a connecting component installed in the middle of the lifting component, and a base component installed at the bottom of the lifting component; by installing the lifting component, on the one hand, the mechanical connection between the entire loading mechanism 100 and the moving mechanism 200 is realized, and at the same time, the height of the test platform 103a can be freely adjusted through the lifting component, thereby realizing the free adjustment of the height of the entire loading mechanism 100; by installing the connecting component, on the one hand, the lifting component itself is fixed and connected, and on the other hand, the lifting component and the base component are mechanically connected and fixed through the connecting component; by folding the lifting component and storing it in the special frame structure of the base component, the connecting component and the base component are stored as one, which is easy to carry.

[0039] Specifically, the lifting component includes an inner support rod 201a-1 for supporting and connecting the test bench assembly 103 and the base component, and an outer support rod 201a-2 cross-hinged with the center end of the inner support rod 201a-1, wherein the inner support rod 201a-1 and the outer support rod 201a-2 are symmetrically arranged in a pair; through the symmetrical distribution of two groups of inner and outer supporting rods, and each group of support rods includes an inner support rod 201a-1 and an outer support rod 201a-2 cross-distributed, it can not only stably support the test platform 103a, but also control the horizontal height of each group of support rods by simultaneously adjusting the crossing angle between the inner support rod 201a-1 and the outer support rod 201a-2 of the two support rods, thereby controlling the height of the test platform 103a.

[0040] Furthermore, the connecting component includes a sliding member 201b-1 installed at the lower end of the test platform 103a and an inner connecting rod 201b-2 for movably connecting the inner support rod 201a-1, wherein the inner connecting rod 201b-2 passes through the sliding member 201b-1, and the two can cooperate with each other; by installing two symmetrical sliding members 201b-1 at the lower end of the test platform, and passing the inner connecting rod 201b-2 through the inside of the sliding member 201b-1, the horizontal limited movement of the inner connecting rod 201b-2 is realized, and the two ends of the inner connecting rod 201b-2 are rotatably connected to the two inner support rods 201a-1, so that the inner support rods 201a-1 in the two groups of support rods can always include the same horizontal height and can rely on the inner connecting rod 201b-2 to move horizontally within the sliding member 201b-1, thereby controlling both the horizontal height and the moving direction of the inner support rod 201a-1.

[0041] The connecting component also includes an outer connecting rod 201b-3 for movably connecting the outer support rod 201a-2, and sliding rollers 201b-4 installed at both ends of the outer connecting rod 201b-3, wherein the sliding rollers 201b-4 can slide on the inner side of the base component; the outer connecting rod 201b-3 horizontally penetrates one end of the outer support rod 201a-2 of the two groups of support rods, so that the two groups of outer support rods 201a-2 are connected at one end under the action of the outer connecting rod 201b-3. The outer connecting rod 201b-3 can be moved, and a sliding roller 201b-4 is installed at each end of the outer connecting rod 201b-3, and the sliding roller 201b-4 is installed on the inner side of the metal frame of the base component, so that the sliding roller 201b-4 can only move within the metal frame. Under this action, the outer connecting rod 201b-3 can only keep horizontal and move within the metal frame, thereby realizing that one end of the two groups of outer support rods 201a-2 connected by the outer connecting rod 201b-3 is also limited to move within the metal frame.

[0042] The connecting component also includes a pair of connecting members 201b-5 installed at the lower end of the test platform 103a and a crossbeam 201b-6 for movably connecting the inner support rod 201a-1 and the outer support rod 201a-2; another pair of connecting members 201b-5 is also arranged inside the base component; through the connecting members 201b-5, the other ends of the two groups of inner support rods 201a-1 are simultaneously movably connected to the inside of the metal frame of the base component and remain fixed, and the other ends of the two groups of outer support rods 201a-2 are also movably connected to the lower end of the test platform 103a through the connecting members 201b-5, and all the inner support rods 201a-1 and the outer support rods 201a-2 are rotatably connected together at the central end point through the crossbeam 201b-6, so that the entire lifting component can only rotate around the crossbeam 201b-6.

[0043] The implementation process of this embodiment is as follows: all the support rods of the lifting component are penetrated at the central end point through the crossbeam 201b-6, so that the entire lifting component can only rotate around the crossbeam 201b-6, and then one end of the inner support rod 201a-1 is fixed to the inside of the base component through the connecting piece 201b-5, and one end of the outer support rod 201a-2 is fixed to the bottom of the test platform 103a through the connecting piece 201b-5. At the same time, the other end of the inner support rod 201a-1 is penetrated by the inner connecting rod 201b-2, and the inner connecting rod 201b-2 cooperates with the sliding piece 201b-1 to realize the limiting end of the inner support rod 201a-1, and the outer support rod 201a-2 The other end is penetrated by an external connecting rod 201b-3, and the sliding rollers 201b-4 installed at both ends of the external connecting rod 201b-3 enable the other end of the outer support rod 201a-2 to move within the base component in a limited position; when the non-fixed end of the inner support rod 201a-1 or the outer support rod 201a-2 moves outward alone or simultaneously, the inner support rod 201a-1 and the outer support rod 201a-2 rotate at the cross beam 201b-6, the angle between the inner support rod 201a-1 and the outer support rod 201a-2 at the cross beam 201b-6 becomes larger, and the horizontal height of the inner support rod 201a-1 and the outer support rod 201a-2 becomes lower, thereby achieving the height reduction of the test platform 103a.

[0044] Example 3

[0045] Reference Figure 2 , Figure 3 and Figure 5 , which is the third embodiment of the present invention, is different from the previous two embodiments: this embodiment provides another operating mode.

[0046] The base component includes a metal frame, a plurality of symmetrical pin holes at both ends of the outer surface of the metal frame, and a limit pin installed in the pin hole, wherein the limit pin cooperates with the pin hole to control the position of the sliding roller 201b-4; wherein the metal frame is a hollow shape, when the inner support rod 201a-1 and the outer support rod 201a-2 rotate at the beam 201b-6 and become horizontal, the horizontal angles of the inner support rod 201a-1 and the outer support rod 201a-2 coincide, because one end of the inner support rod 201a-1 is rotatably connected to the metal frame, the inner support rod 201a-1 and the outer support rod 201a-2 will be folded into the metal frame, and at this time the test platform 103a is in contact with the base component.

[0047] At the same time, the limit pins on both sides of the metal frame are inserted into the corresponding pin holes through the matching of the pin holes. When the sliding rollers 201b-4 on both sides of the metal frame slide outward and contact the limit pins, the sliding rollers 201b-4 stop moving, and the angle between the inner support rod 201a-1 and the outer support rod 201a-2 at the beam 201b-6 no longer changes, and the height of the test platform 103a remains unchanged.

[0048] The base component also includes a second grounding terminal opened on the outer surface and bottom of the metal frame, wherein the base component is also provided with a ground line, and the ground line is arranged at the first grounding terminal 103c of the test bench assembly 103 and extends through the first grounding terminal 103c to the second grounding terminal of the base component, and it extends from the second grounding terminal and the end is grounded; the ground line connected through the first grounding terminal 103c opened on the surface of the test bench assembly 103 enters the interior of the metal frame, passes through the second grounding terminal opened on the surface of the metal frame, and then reaches the ground, thereby realizing the installation of the ground line, ensuring the error of the current data measured each time by the microammeter 103b installed on the test platform 103a.

[0049] The implementation process of this embodiment is that, through the hollow shape of the metal frame, when the angle between the inner support rod 201a-1 and the outer support rod 201a-2 at the beam 201b-6 is the largest, the inner support rod 201a-1 and the outer support rod 201a-2 are folded and overlapped at the beam 201b-6 to enter the inside of the metal frame. At this time, the test platform 103a is in contact with the metal frame, and the device is folded to the most convenient state; and when the angle between the inner support rod 201a-1 and the outer support rod 201a-2 at the beam 201b-6 continues to increase, by inserting the limit pins on both sides of the metal frame into a certain relative pin hole, the sliding rollers 201b-4 located on both sides of the metal frame stop moving when they contact the limit pins during the outward sliding process, and the angle between the inner support rod 201a-1 and the outer support rod 201a-2 at the beam 201b-6 no longer changes, and the height of the test platform 103a remains unchanged.

[0050] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary, and although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application, for example, the size, scale, structure, shape and proportion of various elements, and parameter values ​​such as temperature, pressure, etc., mounting arrangements, use of materials, color, changes in orientation, etc., for example, elements shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be changed or changed. Therefore, all such modifications are intended to be included within the scope of the present invention, and the order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover structures that perform the functions described herein, and not only structural equivalents but also equivalent structures. Without departing from the scope of the invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described, i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention.

[0052] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0053] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A lightning arrester test lifting test bench, characterized in that: include, A loading mechanism (100) comprising a multifunctional support seat (101), an insulating pad (102) and a test bench assembly (103); The insulating pad (102) is mounted on the lower end of the multifunctional support seat (101), and is connected to the outer end of the test bench assembly (103); and, A moving mechanism (200) is arranged at the lower end of the test bench assembly (103), comprising a lifting assembly (201) installed below the test bench assembly (103), and a ground pulley (202) installed at the corner of the lower end of the lifting assembly (201); The multifunctional support seat (101) comprises a support platform (101a) arranged on the upper end of the insulating pad (102), fixing screw holes (101b) opened on the surface of the support platform (101a) and distributed at equal intervals, and a connection terminal (101c) installed on the upper end of the support platform (101a); The test bench assembly (103) comprises a test platform (103a) arranged at the lower end of the insulating pad (102), a microammeter (103b) installed at the upper end of the test platform (103a), a first grounding terminal (103c) provided on the surface of the test platform (103a), and a universal bar hole (103d) provided on the surface of the test platform (103a), wherein the test bench assembly (103) is further provided with a wiring (103e), one end of the wiring (103e) is connected to the microammeter (103b), and the other end thereof is connected to the first grounding terminal (103c); The lifting component (201) comprises a lifting part installed at the lower end of the test bench component (103), a connecting part installed in the middle of the lifting part, and a base part installed at the bottom end of the lifting part; The lifting component comprises an inner support rod (201a-1) for supporting and connecting the test bench assembly (103) and the base component, and an outer support rod (201a-2) cross-hinged with the central end of the inner support rod (201a-1), wherein the inner support rod (201a-1) and the outer support rod (201a-2) are symmetrically arranged in a pair.

2. A lightning arrester test lifting test bench as claimed in claim 1, characterized in that: The connecting component comprises a sliding member (201b-1) installed at the lower end of the test platform (103a) and an inner connecting rod (201b-2) used for movably connecting the inner supporting rod (201a-1), wherein the inner connecting rod (201b-2) passes through the sliding member (201b-1), and the two can cooperate with each other.

3. A lightning arrester test lifting test bench as claimed in claim 1 or 2, characterized in that: The connecting component also includes an outer connecting rod (201b-3) for movably connecting the outer supporting rod (201a-2), and sliding rollers (201b-4) installed at both ends of the outer connecting rod (201b-3), wherein the sliding rollers (201b-4) are capable of sliding on the inner side of the base component.

4. A lightning arrester test lifting test bench as claimed in claim 3, characterized in that: The connecting component also includes a pair of connecting members (201b-5) installed at the lower end of the test platform (103a) and a crossbeam (201b-6) for movably connecting the inner support rod (201a-1) and the outer support rod (201a-2); another pair of the connecting members (201b-5) is also arranged inside the base component.

5. A lightning arrester test lifting test bench as claimed in claim 4, characterized in that: The base component comprises a metal frame, a plurality of latch holes symmetrically arranged at two ends of the outer surface of the metal frame, and limit pins installed in the latch holes, wherein the limit pins cooperate with the latch holes to control the position of the sliding roller (201b-4).

6. A lightning arrester test lifting test bench as claimed in claim 5, characterized in that: The base component also includes a second grounding terminal opened on the outer surface and bottom of the metal frame, wherein the base component is also provided with a grounding line, and the grounding line is provided at the first grounding terminal (103c) of the test bench assembly (103) and extends through the first grounding terminal (103c) to the second grounding terminal of the base component, and extends from the second grounding terminal and the end is grounded.

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