Insulation support platform for frequency converters used in withstand voltage testing

Abstract

This invention relates to an insulation support platform for frequency converters used in withstand voltage testing, belonging to the field of electrical equipment testing technology. The invention includes a platform assembly; a telescopic mounting assembly is connected to the bottom of the platform assembly, the telescopic mounting assembly including a height adjustment mechanism with at least two adjustable levels, allowing the height of the platform assembly to be adjusted in real time via the height adjustment mechanism; an insulating pad assembly is installed between the telescopic mounting assembly and the ground, the insulating pad assembly including an insulating pad body, the surface of the insulating pad body abutting against the telescopic mounting assembly having insulating protrusions, the insulating pad assembly used to block current conduction between the telescopic mounting assembly and the ground; an equipment fixing assembly for fixing the test equipment is detachably connected to the platform assembly; at least one test placement assembly for placing test items is detachably connected to the platform assembly. This invention ensures the safe and reliable conduct of withstand voltage tests.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment testing technology, and in particular to an insulation support platform for frequency converters used in withstand voltage testing. Background Technology

[0002] In the withstand voltage test of electrical equipment, the frequency converter, as a key test object, needs to be placed on an insulated support platform for the test operation.

[0003] Existing insulating support platforms have many problems, among which the most prominent is the poor stability of the support at the bottom of the platform: Traditional support methods often use bolts to fix the support legs to the ground or test bench. This method requires operators to manually tighten the bolts, which is cumbersome, time-consuming, and labor-intensive. Furthermore, when tightening the bolts, it is difficult to ensure that the force on each support leg is uniform, which can easily cause the support platform to tilt, affecting the accuracy and safety of the pressure test.

[0004] In addition, the existing insulation support platforms have poor height applicability and generally cannot meet the needs of multi-height testing; they also have poor versatility in terms of the specifications of the test objects.

[0005] Therefore, based on years of experience and practice in related industries, the inventor proposes an inverter insulation support platform for withstand voltage testing to overcome the shortcomings of existing technologies. Summary of the Invention

[0006] The purpose of this invention is to provide an insulation support platform for frequency converters used in withstand voltage testing, overcoming the problems of poor adjustment and fixing stability and poor versatility in existing technologies. This invention uses telescopic installation components to smoothly adjust and fix the platform components, and the insulation protrusions on the insulation pad components effectively improve the support stability. Adjustable equipment fixing components and test placement components are set on the platform components to meet specification requirements and improve the versatility of the device. This invention can ensure that withstand voltage testing is carried out safely and reliably.

[0007] The objective of this invention is achieved as follows: an insulation support platform for a frequency converter used in withstand voltage testing includes a platform assembly for supporting the frequency converter during the withstand voltage test; a telescopic mounting assembly is connected to the bottom of the platform assembly, the telescopic mounting assembly includes a height adjustment mechanism with at least two adjustable levels, the height of the telescopic mounting assembly being adjusted in real time via the height adjustment mechanism; an insulating pad assembly is disposed between the telescopic mounting assembly and the ground, the insulating pad assembly includes an insulating pad body, the surface of the insulating pad body abutting against the telescopic mounting assembly is provided with insulating protrusions, the insulating pad assembly is used to block current conduction between the telescopic mounting assembly and the ground; an equipment fixing assembly for fixing test equipment is detachably connected to the platform assembly, the equipment fixing assembly including an adjustable equipment mounting plate; at least one test placement assembly for placing test items is detachably connected to the platform assembly, the test placement assembly being rotatably configured.

[0008] In a preferred embodiment of the present invention, the telescopic mounting assembly includes a sleeve leg; the height adjustment mechanism is disposed within the sleeve leg; the height adjustment mechanism includes an adjusting mounting bracket and a push rod structure; the adjusting mounting bracket is slidably connected within the sleeve leg, and a threaded transmission structure for driving the adjusting mounting bracket to rise and fall is provided within the adjusting mounting bracket; a first end of the push rod structure is connected to the top outer side of the adjusting mounting bracket, and a second end of the push rod structure is connected between the top inner side of the sleeve leg.

[0009] In a preferred embodiment of the present invention, the threaded transmission structure includes a threaded rod and an adjusting sleeve. The threaded rod is rotatably connected to the adjusting mounting bracket. The adjusting sleeve is circumferentially fixed and movably passes through the bottom of the adjusting mounting bracket. A fixing bolt is connected to the bottom of the adjusting sleeve. An internal thread is provided inside the adjusting sleeve. The threaded rod is rotatably connected to the adjusting sleeve through the internal thread. The rotation of the threaded rod is converted into axial movement of the adjusting mounting bracket.

[0010] In a preferred embodiment of the present invention, a drive motor is provided on the top of the adjustment mounting bracket, the output end of the drive motor is connected to the threaded rod, a protective sleeve is provided on the adjustment mounting bracket outside the drive motor, and the push rod structure is provided between the protective sleeve and the top inner wall of the sleeve support leg.

[0011] In a preferred embodiment of the present invention, an installation groove is provided in the insulating pad body, and a reinforcing rib is embedded in the installation groove; the insulating protrusions are rectangularly distributed on the top of the insulating pad body, and the spacing between two adjacent insulating protrusions is equal.

[0012] In a preferred embodiment of the present invention, the platform component includes a workbench with a device slot, and a device support frame is provided on at least one side of the bottom of the workbench located in the device slot.

[0013] In a preferred embodiment of the present invention, the device fixing assembly includes a pair of fixing brackets disposed on the platform assembly, each fixing bracket being detachably connected to a device mounting plate, the device mounting plate being positioned and angled on the fixing bracket being adjustable.

[0014] In a preferred embodiment of the present invention, the test placement assembly includes a rotary table disposed on the platform assembly and a first placement frame rotatably connected to the rotary table. The first placement frame is used to place test items, and the rotary table is used to rotatably support the first placement frame. At least two upwardly extending second placement frames are disposed on the first placement frame, and each second placement frame is provided with a guide wheel limiting frame. The guide wheel limiting frame is provided with a plurality of guide wheels, which are used for movement guidance when placing test items, and the guide wheel limiting frame is used to limit the movement range of the guide wheels.

[0015] In a preferred embodiment of the present invention, an insulating support is provided on the first placement rack between each of the second placement racks, and an annular insulating pad is provided on the insulating support, with the test article supported above the annular insulating pad.

[0016] In a preferred embodiment of the present invention, an adjusting push rod is embedded on the side of each of the second placement racks facing the radially inner side of the first placement rack. A clamping plate is provided at the end of each adjusting push rod away from the second placement rack. A clamping rubber ball is provided on the side of each clamping plate away from the adjusting push rod. Each clamping rubber ball is used to abut against and adhere to the test article to clamp and fix the test article.

[0017] As described above, the inverter insulation support platform for withstand voltage testing of the present invention has the following beneficial effects: The platform components of this invention provide stable support for frequency converters; The telescopic mounting assembly of this invention adjusts the height of the platform components in real time through a height adjustment mechanism, thereby achieving height adjustment of related parts. The telescopic mounting assembly achieves flexible adjustment of the support height through two- or multi-stage height adjustment mechanisms, meeting different test height requirements and adapting to different test site requirements. The telescopic mounting assembly uses a fixed bolt thread transmission method, which is more labor-saving and efficient than traditional manual bolt fixing, and can precisely control the fixing force to ensure the stability of the platform without shaking. The rectangularly distributed sleeve legs, together with the height adjustment mechanism, enhance the overall load-bearing capacity and anti-overturning performance of the platform, ensuring the safe and reliable conduct of the pressure test.

[0018] The insulating pad body of this invention, with its own insulating properties, blocks the current conduction between the telescopic installation component and the ground, ensuring test safety. The insulating protrusions disperse pressure and avoid excessive local wear. When supporting the platform component, it can effectively prevent slippage and provide stable support. The insulating pad component enhances the insulation performance of the platform component and reduces the risk of leakage. The insulating protrusions optimize the anti-slip and load-bearing effects, making the platform component stable and non-displaceable during the withstand voltage test, ensuring the safety and reliability of the test process. At the same time, it reduces the maintenance costs caused by friction loss and improves the overall practicality.

[0019] The equipment fixing component of this invention can quickly and stably fix the test equipment, reducing installation time and labor costs. Its flexible adaptability can meet the installation needs of various equipment, improve the platform's versatility, and the stable fixing method ensures the stability of the test equipment in the pressure test, avoids the impact of equipment shaking on the accuracy of test data, and prevents safety hazards caused by equipment displacement, thereby improving the safety and reliability of the test.

[0020] The test placement assembly of this invention improves the convenience and flexibility of test operation through rotation, facilitating multi-angle testing. The combined design of the concave first and second placement racks can meet the placement needs of different types of test items, improve space utilization, and the guide wheel limiting frame enhances placement stability, prevents test items from falling and being damaged, reduces test errors, ensures safe and efficient testing, and reduces unexpected risks during the test process. Attached Figure Description

[0021] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein: Figure 1 This is an overall schematic diagram of the inverter insulation support platform for withstand voltage testing according to the present invention.

[0022] Figure 2 This is an overall schematic diagram of the telescopic installation component of the present invention in an exploded state.

[0023] Figure 3 This is a schematic diagram of the platform component, telescopic mounting component, and insulating pad component of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of the telescopic mounting assembly of the present invention.

[0025] Figure 5 This is an exploded view of the adjusting mounting bracket of the telescopic mounting assembly of the present invention.

[0026] Figure 6 This is an exploded view of the insulating pad assembly of the present invention.

[0027] Figure 7This is a schematic diagram of the installation of the device fixing components of the present invention.

[0028] Figure 8 This is a schematic diagram of the overall test placement assembly of the present invention.

[0029] Figure 9 This is an exploded view of the second placement rack of the test placement assembly of the present invention.

[0030] In the picture: 1. Platform components; 11. Workbench; 12. Equipment slot; 13. Equipment support frame; 2. Telescopic mounting assembly; 21. Sleeve support leg; 211. Push rod structure; 22. Protective sleeve; 221. Drive motor; 23. Adjustable mounting bracket; 231. Threaded rod; 232. Adjustable sleeve; 24. Fixing bolt; 3. Insulating pad assembly; 31. Insulating pad body; 311. Insulating bumps; 32. Reinforcing ribs; 4. Equipment fixing components; 41. Fixing bracket; 42. Equipment mounting plate; 5. Test placement assembly; 51. Rotary table; 52. First placement frame; 521. Insulating support; 522. Annular insulating pad; 53. Second placement frame; 54. Guide wheel limiting frame; 541. Guide wheel; 55. Adjusting push rod; 56. Clamping plate; 57. Clamping rubber ball. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0032] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 9 As shown, the present invention provides an inverter insulation support platform for withstand voltage testing, including a platform component 1 for supporting the inverter during withstand voltage testing, the platform component 1 providing stable support for the inverter.

[0035] The bottom of the platform component 1 is connected to the telescopic mounting component 2. The telescopic mounting component 2 includes a height adjustment mechanism that can be adjusted in at least two levels. The telescopic mounting component 2 adjusts the height of the platform component 1 in real time through the height adjustment mechanism, thereby realizing the height adjustment of related components. The telescopic mounting component 2 realizes flexible adjustment of the support height through two or more levels of height adjustment mechanism, which can meet different test height requirements and adapt to different test site requirements.

[0036] An insulating pad assembly 3 is installed between the telescopic mounting assembly 2 and the ground. The insulating pad assembly 3 includes an insulating pad body 31. Insulating protrusions 311 are provided on the surface of the insulating pad body 31 that abuts against the telescopic mounting assembly 2. The insulating pad assembly 3 is used to block the current conduction between the telescopic mounting assembly 2 and the ground. The insulating pad body 31, with its own insulating properties, blocks the current conduction between the telescopic mounting assembly 2 and the ground, ensuring test safety. The insulating protrusions 311 disperse pressure and avoid excessive local wear. When supporting the platform assembly 1, it can effectively prevent slippage and provide stable support. The insulating pad assembly 3 enhances the insulation performance of the platform assembly 1 and reduces the risk of leakage. The insulating protrusions 311 optimize the anti-slip and load-bearing effects, making the platform assembly 1 stable and non-displaceable during the withstand voltage test, ensuring the safety and reliability of the test process, while reducing maintenance costs caused by friction loss and improving overall practicality.

[0037] The platform component 1 is detachably connected to the equipment fixing component 4 for fixing the test equipment. The equipment fixing component 4 includes an adjustable equipment mounting plate 42. The equipment mounting plate 42 can be adjusted according to the size of the equipment to adapt to different specifications of equipment. By adjusting its position and angle, it ensures that the equipment is installed stably and will not be displaced due to vibration or other factors during the test. The equipment fixing component 4 can quickly and stably fix the test equipment, reducing installation time and labor costs. Its flexible adaptability can meet the installation needs of various equipment, improve the versatility of the platform, and the stable fixing method ensures the stability of the test equipment in the pressure test, avoids the impact of equipment shaking on the accuracy of test data, and prevents safety hazards caused by equipment displacement, thereby improving the safety and reliability of the test.

[0038] At least one test placement component 5 for placing test items is detachably connected to platform component 1. The test placement component 5 is rotatably configured. The rotation function of the test placement component 5 improves the convenience and flexibility of test operation, facilitates multi-angle testing, and can meet the placement needs of different types of test items, thereby improving space utilization.

[0039] Furthermore, such as Figure 1 , Figure 2 , Figure 4 As shown, the telescopic mounting assembly 2 includes a sleeve leg 21, and a height adjustment mechanism is installed inside the sleeve leg 21. The height adjustment mechanism includes an adjustment mounting frame 23 and a push rod structure 211. The adjustment mounting frame 23 is slidably connected inside the sleeve leg 21, and a threaded transmission structure for driving the adjustment mounting frame 23 to rise and fall is provided inside the adjustment mounting frame 23. The first end of the push rod structure 211 is connected to the top outer side of the adjustment mounting frame 23, and the second end of the push rod structure 211 is connected to the top inner side of the sleeve leg 21.

[0040] Furthermore, such as Figure 4 , Figure 5 As shown, the threaded transmission structure includes a threaded rod 231 and an adjusting sleeve 232. The threaded rod 231 is rotatably connected to the adjusting mounting bracket 23. The adjusting sleeve 232 is circumferentially fixed and movably passes through the bottom of the adjusting mounting bracket 23. A fixing bolt 24 (which can rotate relative to the adjusting sleeve 232) is connected to the bottom of the adjusting sleeve 232. An internal thread is provided inside the adjusting sleeve 232, and the threaded rod 231 is rotatably connected to the adjusting sleeve 232 through the internal thread. The rotation of the threaded rod 231 is converted into axial movement of the adjusting mounting bracket 23. The threaded transmission structure realizes the first-stage telescopic adjustment of the telescopic mounting assembly 2.

[0041] Furthermore, such as Figure 4 , Figure 5 As shown, a drive motor 221 is provided on the top of the adjusting mounting bracket 23. The output end of the drive motor 221 is connected to the threaded rod 231. A protective sleeve 22 is provided on the adjusting mounting bracket 23 outside the drive motor 221. A push rod structure 211 is provided between the protective sleeve 22 and the top inner wall of the sleeve support leg 21. The push rod structure 211 realizes the two-stage telescopic adjustment of the telescopic mounting assembly 2.

[0042] In one specific embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, there are four sleeve support legs 21, which are arranged in a rectangular shape. Each of the four sleeve support legs 21 is slidably connected to an adjustment mounting bracket 23. The four rectangular sleeve support legs 21 support the platform assembly 1. The adjustment mounting bracket 23 can slide up and down inside the sleeve support leg 21 to initially adjust the height. When the drive motor 221 is started, the threaded rod 231 is driven to rotate. Since it is threadedly connected to the adjustment sleeve 232, it will drive the adjustment sleeve 232 to move axially along the threaded rod 231, thereby driving the bottom fixing bolt 24 to rise and fall.

[0043] After the threaded drive structure is adjusted, when fixed, the adjusting sleeve 232 and the structures above it remain locked (i.e., the height remains unchanged). Rotate the fixing bolt 24 to screw it into the ground or test bench (in the prior art, located below the present invention), and use the thread engagement to achieve a stable fixation. When loosening, the fixing bolt 24 can be rotated in the opposite direction to release the fixation, which facilitates the movement of the present invention. The telescopic installation component 2 realizes flexible adjustment of the support height to adapt to the needs of different test sites. The threaded drive fixing method is more labor-saving and efficient than the traditional manual bolt fixing, and can accurately control the fixing force to ensure the stability of the platform without shaking. The rectangular distributed sleeve legs 21, together with the height adjustment mechanism, enhance the overall load-bearing capacity and anti-overturning performance of the platform, ensuring the safe and reliable conduct of the pressure test.

[0044] A protective sleeve 22 is installed on the outside of the drive motor 221 on the adjusting mounting bracket 23. A push rod structure 211 (which can be an electric push rod, pneumatic push rod, etc.) is installed between the protective sleeve 22 and the inner wall of the sleeve support leg 21. The output end of the drive motor 221 is connected to the top of the protective sleeve 22. After the drive motor 221 is started, it drives the threaded rod 231 to rotate, realizing the lifting and lowering adjustment of related components through threaded transmission to meet different test height requirements. The protective sleeve 22 can protect the drive motor 221 and prevent foreign objects from entering and affecting its normal operation during the test. The push rod structure 211 is located between the protective sleeve 22 and the sleeve support leg 21. Through telescopic movement, it assists in adjusting the telescopic displacement of the mounting bracket 23 within the sleeve support leg 21, adapting to various test scenarios. The dual adjustment mechanism makes the adjustment more precise and efficient. The protective sleeve 22 enhances the operational stability of the drive motor 221, extends the service life of the equipment, and ensures the smooth conduct of the pressure test and the accuracy of the data.

[0045] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, an installation groove is provided inside the insulating pad body 31, and a reinforcing rib 32 is embedded in the installation groove. The insulating protrusions 311 are distributed in a rectangular shape on the top of the insulating pad body 31, and the spacing between two adjacent insulating protrusions 311 is equal.

[0046] Specifically, the insulating pad body 31 is an insulating rubber pad (or it can be an insulating pad made of other materials that have a certain elasticity and can be insulating). The reinforcing ribs 32 are embedded in the insulating pad body 31. The top of the insulating pad body 31 is provided with insulating protrusions 311. The insulating protrusions 311 are distributed in a rectangular shape, and the spacing between two adjacent insulating protrusions 311 is equal. The insulating pad body 31, with its own insulating properties, blocks the current conduction between the telescopic mounting component 2 and the ground, ensuring test safety. The reinforcing ribs 32 are embedded in it, improving the structural strength of the insulating pad body 31 and preventing deformation under pressure. The insulating protrusions 311 disperse pressure and avoid excessive local wear. Their regular rectangular distribution and equidistant design ensure uniform force distribution and effectively prevent slippage when supporting the platform component 1, providing stable support. This insulating pad component 3 enhances the insulation performance of the platform component 1, reducing the risk of leakage. The reinforcing ribs 32 improve durability and extend service life. The insulating protrusions 311 optimize the anti-slip and load-bearing effects, making the platform component 1 stable and non-displaceable during the pressure test, ensuring the safety and reliability of the test process. At the same time, it reduces maintenance costs caused by frictional wear and improves overall practicality.

[0047] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, the platform component 1 includes a workbench 11, on which a device slot 12 is provided, and a device support frame 13 is provided at least on one side of the bottom of the workbench 11 located in the device slot 12.

[0048] Furthermore, such as Figure 1 , Figure 2 , Figure 7 As shown, the equipment fixing component 4 includes a pair of fixing brackets 41 arranged on the platform component 1. Each fixing bracket 41 is detachably connected to an equipment mounting plate 42. The position and angle of the equipment mounting plate 42 on the fixing bracket 41 are adjustable.

[0049] Specifically, two fixed mounting brackets 41 are provided, and the two fixed mounting brackets 41 are respectively set on both sides of the equipment slot 12. Two equipment mounting plates 42 are respectively set on the two fixed mounting brackets 41. The two fixed mounting brackets 41 are symmetrically arranged on both sides of the equipment slot 12 to form a stable support structure. The equipment mounting plates 42 are installed on the fixed mounting brackets 41. Through bolts, buckles and other connecting parts, the frequency converter for withstand pressure testing can be firmly installed in the equipment slot 12. The equipment mounting plates 42 can be adjusted according to the size of the equipment to adapt to different specifications of equipment. By adjusting its position and angle, the equipment is ensured to be installed stably and will not be displaced due to vibration or other factors during the test.

[0050] The equipment fixing component 4 can quickly and stably fix the test equipment, reducing installation time and labor costs. Its flexible adaptability can meet the installation needs of various equipment, improve the platform's versatility, and the stable fixing method ensures the stability of the test equipment in the pressure test, avoids the impact of equipment shaking on the accuracy of test data, and prevents safety hazards caused by equipment displacement, thereby improving the safety and reliability of the test.

[0051] Furthermore, such as Figure 1 , Figure 2 , Figure 8 , Figure 9 As shown, the test placement assembly 5 includes a rotary table 51 disposed on the platform assembly 1 and a first placement frame 52 rotatably connected to the rotary table 51. The first placement frame 52 is used to place test items, and the rotary table 51 is used to rotatably support the first placement frame 52. At least two upwardly extending second placement frames 53 are disposed on the first placement frame 52, and each second placement frame 53 is provided with a guide wheel limiting frame 54. The guide wheel limiting frame 54 is provided with a plurality of guide wheels 541. The guide wheels 541 are used for movement guidance when placing test items, and the guide wheel limiting frame 54 is used to limit the movement range of the guide wheels.

[0052] Furthermore, such as Figure 8 As shown, an insulating support 521 is provided on the first placement rack 52 between each of the second placement racks 53. An annular insulating pad 522 is provided on the insulating support 521, and the test item is supported above the annular insulating pad 522.

[0053] Furthermore, such as Figure 1 , Figure 2 , Figure 8 , Figure 9 As shown, each of the second placement racks 53 has an adjusting push rod 55 embedded on the side facing the radially inner side of the first placement rack 52. Each adjusting push rod 55 has a clamping plate 56 at the end away from the second placement rack 53. Each clamping plate 56 has a clamping rubber ball 57 on the side away from the adjusting push rod 55. Each clamping rubber ball 57 is used to abut against and adhere to the test item to clamp and fix the test item.

[0054] Specifically, the first placement rack 52 is in the form of a concave placement rack, and a second placement rack 53 is provided on both sides of the first placement rack 52. The upper and lower ends of the two second placement racks 53 are provided with guide wheel limit frames 54. After the rotary table 51 is powered on, it can drive the first placement rack 52 to rotate, which makes it convenient for operators to operate and test the test items (including test equipment, small test parts or tools) placed on the first placement rack 52 from different angles. The second placement rack 53 is used to assist in placing small test parts or tools. The guide wheel limit frames 54 at its upper and lower ends limit the movement range of the guide wheels 541 to prevent the placed items (test items) from slipping or shifting, ensuring stable placement. At the same time, it provides guidance when the placed items (test items) move, making it easier to pick up and put down. The test placement component 5 enhances the convenience and flexibility of test operation through its rotation function, facilitating multi-angle testing. The combined design of the concave first placement rack 52 and the second placement rack 53 can meet the placement needs of different types of test items, improve space utilization, and enhance placement stability by using guide wheel limit frame 54 to prevent test items from falling and being damaged, reduce test errors, ensure safe and efficient testing, and reduce unexpected risks during the test process.

[0055] An insulating support 521 is positioned on the first placement rack 52 between the two second placement racks 53. Multiple annular insulating pads 522 are provided on the top of the insulating support 521, with their diameters decreasing sequentially from the outside to the inside. The insulating support 521 is made of insulating material, effectively isolating the test items from the second placement racks 53 and ensuring test safety. The annular insulating pads 522 are arranged in layers, with their diameters decreasing from the outside to the inside, forming a stepped structure. When placing test items of different sizes, the appropriate annular insulating pad 522 can be selected according to the size of the bottom of the test item, utilizing its ring shape... The raised section fits snugly against the bottom of the test item, increasing the contact area and friction to prevent the test item from sliding during the test. At the same time, the multi-layered annular insulating pad 522 can distribute the pressure on the equipment and avoid excessive local stress. The combination of the insulating support 521 and the annular insulating pad 522 significantly enhances the insulation performance of the test placement assembly 5 and reduces the risk of leakage. The multi-layered annular insulating pad 522 can be adapted to test items of various specifications, improving the versatility and practicality of the platform. Its anti-slip and pressure-reducing design can effectively stabilize the equipment, reduce data errors caused by the displacement of test items during the test, improve the accuracy and reliability of the test, and ensure the smooth progress of the test.

[0056] Adjustable push rods 55 are embedded on the side of each of the two second placement racks 53 that are close to each other (radially inward towards the first placement rack 52 / insulating support 521). Clamping plates 56 are provided on the side of each of the two adjustable push rods 55 that are close to each other, and clamping rubber balls 57 are provided on the side of each of the two clamping plates 56 that are close to each other. The adjustable push rods 55 can extend and retract when energized, moving the clamping plates 56 towards the center or sides. By controlling the extension and retraction length of the adjustable push rods 55, the distance between the two clamping plates 56 can be flexibly adjusted to accommodate testing equipment of different sizes. The clamping rubber balls 57 are distributed on the surface of the clamping plates 56. When the equipment is in use, the clamping rubber ball 57 undergoes elastic deformation, tightly adhering to the equipment surface and increasing friction. At the same time, its own elasticity buffers the clamping force, preventing hard damage to the equipment. This design enables rapid and precise clamping and fixing of the test equipment, enhancing the stability of the equipment during the test and reducing test errors caused by equipment shaking. The combination of adjusting push rod 55 and clamping plate 56 can be adapted to various specifications of equipment, improving the platform's versatility. The buffering protection function of the clamping rubber ball 57 can effectively prevent damage to the equipment surface, ensuring the smooth conduct of the test, extending the service life of the equipment, and reducing test risks and costs.

[0057] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A variable frequency drive insulation support platform for pressure testing, characterized by, The platform assembly is connected with the telescopic mounting assembly, the telescopic mounting assembly comprises a height adjusting mechanism capable of being adjusted in at least two stages, the telescopic mounting assembly adjusts the height of the platform assembly in real time through the height adjusting mechanism, an insulating pad assembly is arranged between the telescopic mounting assembly and the ground, the insulating pad assembly comprises an insulating pad body, insulating protrusions are arranged on the surface of the insulating pad body abutting against the telescopic mounting assembly, the insulating pad assembly is used for blocking the conduction of current between the telescopic mounting assembly and the ground, a device fixing assembly for fixing test equipment is detachably connected on the platform assembly, the device fixing assembly comprises an adjustable device mounting plate, at least one test placing assembly for placing test articles is detachably connected on the platform assembly, and the test placing assembly is rotatably arranged.

2. The frequency converter insulation support platform for pressure tests, as set forth in claim 1, characterized in that, The telescopic mounting assembly comprises a sleeve leg, the height adjusting mechanism is arranged in the sleeve leg, the height adjusting mechanism comprises an adjusting mounting frame and a push rod structure, the adjusting mounting frame is slidably connected in the sleeve leg, a screw transmission structure for driving the adjusting mounting frame to ascend and descend is arranged in the adjusting mounting frame, the first end of the push rod structure is connected to the top outer side of the adjusting mounting frame, and the second end of the push rod structure is connected to the top inner side of the sleeve leg.

3. The frequency converter insulation support platform for pressure tests, as set forth in claim 2, characterized in that, The screw transmission structure comprises a threaded rod and an adjusting sleeve, the threaded rod is rotatably connected in the adjusting mounting frame, the adjusting sleeve is circumferentially fixed and movably passes through the bottom of the adjusting mounting frame, and the bottom of the adjusting sleeve is connected with a fixing bolt; an internal thread is arranged in the adjusting sleeve, the threaded rod is rotatably connected to the adjusting sleeve through the internal thread, and the rotation of the threaded rod is converted into the axial movement of the adjusting mounting frame.

4. The frequency converter insulation support platform for pressure tests, as set forth in claim 3, characterized in that, The top of the adjusting mounting frame is provided with a driving motor, the output end of the driving motor is connected with the threaded rod, a protective sleeve is arranged on the outer side of the driving motor on the adjusting mounting frame, and the push rod structure is arranged between the protective sleeve and the top inner side wall of the sleeve leg.

5. The frequency inverter insulation support platform for pressure test according to claim 1, characterized in that, The insulating pad body is provided with a mounting groove, and a reinforcing rib is embedded in the mounting groove; the insulating protrusions are arranged in a rectangular distribution on the top of the insulating pad body, and the spacing between adjacent two insulating protrusions is equal.

6. The frequency converter insulation support platform for pressure testing according to claim 1, wherein, The platform assembly comprises a workbench, the workbench is provided with a device groove, and a device lifting frame is arranged on at least one side of the device groove at the bottom of the workbench.

7. The frequency inverter insulation support platform for pressure test according to claim 1, wherein, The device fixing assembly comprises a pair of fixing mounting frames arranged on the platform assembly, the device mounting plate is detachably connected on each fixing mounting frame, and the position and angle of the device mounting plate on the fixing mounting frame are adjustably arranged.

8. The frequency converter insulation support platform for pressure testing according to claim 1, wherein, The test placement assembly comprises a rotating table arranged on the platform assembly and a first placement rack rotatably connected to the rotating table, the first placement rack is used for placing test articles, and the rotating table is used for rotatably supporting the first placement rack; at least two second placement racks extending upwards are arranged on the first placement rack, a guide wheel limiting rack is arranged on each second placement rack, a plurality of guide wheels are arranged on the guide wheel limiting rack, the guide wheels are used for moving guidance when placing test articles, and the guide wheel limiting rack is used for limiting the movement range of the guide wheels.

9. The frequency converter insulation support platform for pressure testing according to claim 8, wherein, An insulating support is arranged between each second placement rack on the first placement rack, an annular insulating pad is arranged on the insulating support, and the test articles are supported above the annular insulating pad.

10. The frequency converter insulation support platform for pressure testing according to claim 8, wherein, An adjusting push rod is embedded and installed on one side of each second placement rack towards the radial inner side of the first placement rack, a clamping plate is arranged at the end of each adjusting push rod away from the second placement rack, a clamping rubber ball is arranged on one side of each clamping plate away from the adjusting push rod, and each clamping rubber ball is used for abutting and adhering to the test articles to clamp and fix the test articles.

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