A field assembly tool for a T-type gas-insulated switch
By designing a combination of gantry, lifting device, and inflation device, the problem of difficult installation of T-type gas-insulated switches in confined spaces was solved, achieving efficient and safe installation and sealing protection, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAISHAN NUCLEAR POWER JOINT VENTURE CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing T-type gas-insulated switchgear is difficult to install in confined spaces, increasing labor intensity and reducing safety. It is also susceptible to moisture corrosion during storage and transportation, affecting its sealing performance and service life.
A field assembly tool was designed, comprising a gantry frame, a lifting device, an inflation device, and connecting components. The lifting device suspends the T-type gas-insulated switch to a designated position, and the inflation device maintains the internal high-pressure state. The combination of limit components and lifting lugs improves stability and sealing.
Efficiently installing T-type gas-insulated switches in confined spaces reduces labor intensity, improves safety, extends service life, prevents moisture corrosion, and enhances sealing.
Smart Images

Figure CN224520505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas-insulated switch installation technology, and in particular to a field assembly tool for a T-type gas-insulated switch. Background Technology
[0002] Existing T-type gas-insulated switchgear faces challenges during assembly or installation. Limited space in some areas prevents the use of large gantry cranes within the factory premises, increasing the difficulty of installing the T-type gas-insulated switchgear in the designated location, reducing assembly or installation efficiency, and increasing labor intensity.
[0003] Among them, T-type gas-insulated switches are also difficult to transport due to their large size, increasing labor intensity, reducing safety, and easily causing damage to life and property. During storage and transportation, they are susceptible to moisture corrosion, leading to internal corrosion and affecting the sealing performance and service life of the T-type gas-insulated switches. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a field assembly tool for a T-type gas-insulated switch.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A field assembly tool for a T-type gas-insulated switch is constructed, including: a gantry frame, a lifting device, and an inflation device, as well as a connecting assembly for connecting the T-type gas-insulated switch to the lifting device; the lifting device is installed on the gantry frame; the connecting assembly is installed on the lifting device; the inflation device is installed on the gantry frame and inflates the assembled T-type gas-insulated switch with gas to maintain a high-pressure state inside; the connecting assembly includes: a connecting block, connecting ropes, and limiting members; one end of multiple connecting ropes is disposed on the connecting block, and the other end of multiple connecting ropes is disposed on the limiting member; the limiting member is symmetrically provided with limiting grooves for accommodating the T-type gas-insulated switch, and the limiting member is positioned at the T-shaped inflection point of the T-type gas-insulated switch through the limiting grooves.
[0006] Furthermore, the limiting member includes: a first limiting block, a second limiting block, and a locking member. The first limiting block is detachably mounted on the second limiting block via the locking member. The limiting groove on the first limiting block and the limiting groove on the second limiting block surround each other to form a limiting hole for accommodating the T-type gas-insulated switch.
[0007] Furthermore, both the first limiting block and the second limiting block are provided with multiple adjustment holes, and the locking member cooperates with the adjustment holes to change the size of the limiting holes.
[0008] Furthermore, both the first limiting block and the second limiting block are U-shaped.
[0009] Furthermore, the connecting assembly also includes multiple lifting lugs, each of which is installed in a corresponding adjusting hole via a threaded pair, and multiple connecting ropes are correspondingly disposed on the lifting lugs.
[0010] Furthermore, multiple connecting ropes are arranged in a cross shape on the connecting block.
[0011] Furthermore, the inflation device includes an air pump and a sealing element, wherein the sealing element is detachably installed on the T-type gas-insulated switch to keep the interior of the T-type gas-insulated switch sealed; the air pump is installed on the gantry frame and inflates the interior of the T-type gas-insulated switch through an inflation pipe.
[0012] Furthermore, the field assembly tool for the T-type gas-insulated switch also includes a traveling device mounted on the gantry. The traveling device includes casters and brakes. The casters are symmetrically mounted on the gantry, and the brakes are mounted on the gantry in correspondence with the casters.
[0013] Furthermore, the brake component includes a threaded rod and a support block, wherein the threaded rod is mounted on the gantry via a threaded joint, and the support block is mounted on the threaded rod.
[0014] Furthermore, the sides of the gantry frame are configured as triangular or arched.
[0015] The following are the beneficial effects of implementing this utility model:
[0016] This application utilizes a lifting device mounted on a gantry frame, with connecting components also mounted on the lifting device and an inflation device mounted on the gantry frame. This system inflates the assembled T-type gas-insulated switch to maintain a high-pressure internal state. The connecting components are used to suspend the T-type gas-insulated switch on the lifting device, allowing it to be suspended in confined spaces and moved to the designated installation position. The lifting device then raises or lowers the connecting components and the T-type gas-insulated switch to the designated installation position, facilitating its installation onto the entire equipment and improving installation efficiency. The gantry frame can be used in confined spaces, providing a dedicated assembly tool for the T-type gas-insulated switch. This allows for assembly and installation of the T-type gas-insulated switch in limited spaces, reducing the need for large gantry cranes, increasing installation and assembly efficiency, reducing labor intensity, improving safety, protecting life and property, and enhancing post-assembly sealing, thus extending service life. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0018] In the attached image:
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the field assembly tool for the T-type gas-insulated switch in some embodiments of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the lifting device and connecting components in some embodiments of this utility model;
[0021] Figure 3 This is a three-dimensional structural schematic diagram of the field assembly tool for the T-type gas-insulated switch in some other embodiments of this utility model;
[0022] Figure 4 This is a structural schematic diagram of the lifting device and connecting components in some other embodiments of this utility model;
[0023] Figure 5 This is a schematic diagram of the installation position of the walking device in some embodiments of this utility model.
[0024] Explanation of markings in the diagram
[0025] 1. Gantry frame; 2. Lifting device; 3. Inflation device; 31. Air pump; 32. Sealing component; 33. Inflation pipe; 4. Connecting assembly; 41. Connecting block; 42. Connecting rope; 43. Limiting component; 43. First limiting block; 431. Second limiting block; 432. Locking component; 433. Limiting hole; 434. Adjusting hole; 435. Limiting groove; 44. Lifting lug; 45. Traveling device; 51. Casters; 52. Brake; 521. Threaded rod; 522. Support block; 100. T-type gas-insulated switch. Detailed Implementation
[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0028] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0029] Please see Figure 1 and Figure 2 The first embodiment of this utility model provides a field assembly tool for a T-type gas-insulated switch, comprising: a gantry frame 1, a lifting device 2, and an inflation device 3, as well as a connecting assembly 4 for connecting the T-type gas-insulated switch 100 to the lifting device 2. The lifting device 2 is mounted on the gantry frame 1, the connecting assembly 4 is mounted on the lifting device 2, and the inflation device 3 is mounted on the gantry frame 1 to inflate the assembled T-type gas-insulated switch 100 to maintain a high-pressure state inside. The connecting assembly 4 comprises: a connecting block 41, connecting ropes 42, and limiting members 43. One end of the multiple connecting ropes 42 is disposed on the connecting block 41, and the other end of the multiple connecting ropes 42 is disposed on the limiting member 43. The limiting member 43 is symmetrically provided with limiting grooves 44 for accommodating the T-type gas-insulated switch 100, and the limiting member 43 is positioned at the T-shaped inflection point of the T-type gas-insulated switch 100 through the limiting grooves 44.
[0030] This application utilizes a lifting device 2 to mount the T-type gas-insulated switch 1 onto a gantry frame 1, a connecting assembly 4 to mount the lifting device 2, and an inflation device 3 to mount the gantry frame 1. This inflates the assembled T-type gas-insulated switch 100 with gas, maintaining a high-pressure environment inside. The connecting assembly 4 is used to suspend the T-type gas-insulated switch 100 on the lifting device 2, allowing it to be suspended in confined spaces and moved to a designated location for installation. The lifting device 2 then raises or lowers the connecting assembly 4 and the T-type gas-insulated switch 100 to the designated installation position, facilitating its installation onto the entire equipment and improving installation efficiency. The gantry frame 1 can be used in confined spaces. When assembling the T-type gas-insulated switch 100, some parts can be lifted using the gantry frame 1, lifting device 2, and connecting assembly 4, and then the parts to be installed below can be placed at the lower end for assembly, providing a dedicated assembly tool for the T-type gas-insulated switch 100. This allows for the assembly and installation of T-type gas-insulated switches in confined spaces, reducing the need for large gantry cranes, improving installation and assembly efficiency, reducing labor intensity, increasing safety, and ensuring the safety of life and property.
[0031] After the T-type gas-insulated switch 100 is assembled, it is inflated by the inflation device 3 to maintain a high pressure inside the T-type gas-insulated switch 100, preventing the intrusion of external moisture, reducing the corrosion of the T-type gas-insulated switch 100 by humid air, extending its service life, and also testing the sealing performance of the T-type gas-insulated switch 100 after assembly, allowing for timely repairs, improving sealing performance, facilitating operation, and reducing labor intensity.
[0032] The lifting device 2 can be an electric hoist, a pneumatic cylinder, or a hydraulic cylinder, used to drive the connecting component 4 to move up and down and left and right.
[0033] This application utilizes a connecting assembly 4, comprising a connecting block 41, connecting ropes 42, and limiting members 43. One end of each connecting rope 42 is mounted on the connecting block 41, and the other end is mounted on the limiting members 43. The limiting members 43 are symmetrically provided with limiting grooves 44 for accommodating the T-type gas-insulated switch 100. The limiting members 43 are positioned at the T-shaped inflection point of the T-type gas-insulated switch 100 via the limiting grooves 44, facilitating the hoisting of the T-type gas-insulated switch 100 onto the lifting device 2 via the connecting assembly 4, reducing labor intensity and improving assembly efficiency. The connecting ropes 42 can be adjusted in length as needed, making them suitable for a wider range of assembly and installation environments. The connecting block 41 facilitates the integration of multiple connecting ropes 42 together for connection to the lifting device 2. The limiting grooves 44 are similar in shape to the T-type gas-insulated switch 100, supporting the T-type gas-insulated switch 100 and improving stability during hoisting. This facilitates the installation of the T-type gas-insulated switch 100 onto the connecting assembly 4, enhancing assembly and installation efficiency.
[0034] Please see Figure 1 and Figure 2 In some embodiments, the limiting member 43 includes: a first limiting block 431, a second limiting block 432, and a locking member 433. The first limiting block 431 is detachably mounted on the second limiting block 432 via the locking member 433. The limiting groove 44 on the first limiting block 431 and the limiting groove 44 on the second limiting block 432 surround each other to form a limiting hole 434 for accommodating the T-type gas-insulated switch 100.
[0035] This application utilizes a first limiting block 431 that is detachably mounted on a second limiting block 432 via a locking member 433. The limiting grooves 44 on the first and second limiting blocks 431 and 432 together form a limiting hole 434 to accommodate the T-type gas-insulated switch 100. The locking member 433 can be a bolt or a pin. By using the limiting grooves 44 on the first and second limiting blocks 431 and 432 to surround the limiting hole 434 to accommodate the T-type gas-insulated switch 100, the limiting hole 434 is fitted under the T-type gas-insulated switch 100, locking the switch within it. This prevents displacement of the T-type gas-insulated switch 100 from the connecting assembly 4 during hoisting, improving stability and safety during hoisting, increasing hoisting options, facilitating operation, and making it suitable for more hoisting environments.
[0036] Please see Figure 3 and Figure 4 In some embodiments, the first limiting block 431 and the second limiting block 432 are each provided with a plurality of adjusting holes 435, and the locking member 433 cooperates with the adjusting holes 435 to change the size of the limiting hole 434.
[0037] This application features multiple adjusting holes 435 on both the first limiting block 431 and the second limiting block 432. A locking member 433 engages with the adjusting holes 435 to change the size of the limiting hole 434. By inserting the locking member 433 into different adjusting holes 435 on the first limiting block 431 and the second limiting block 432, the distance between them can be changed, thereby altering the size of the limiting hole 434. By using different limiting holes 434 to fit the first limiting block 431 and the second limiting block 432 around T-type gas-insulated switches 100 of different specifications, the applicability range is expanded, making it suitable for more models, facilitating adjustment, and reducing labor intensity.
[0038] Please see Figures 1 to 4 In some embodiments, both the first limiting block 431 and the second limiting block 432 are U-shaped.
[0039] This application uses a U-shaped first limiting block 431 and a U-shaped second limiting block 432. The U-shaped first limiting block 431 and the second limiting block 432 can be adapted to the shape of the T-type gas-insulated switch 100 and are also easy to manufacture. The U-shaped first limiting block 431 and the second limiting block 432 can reduce deformation during the lifting process and improve service life and safety.
[0040] Please see Figures 1 to 4 In some embodiments, the connecting component 4 further includes a plurality of lifting lugs 45, which are all installed in corresponding adjustment holes 435 by threaded pairs, and a plurality of connecting ropes 42 are correspondingly arranged on the lifting lugs 45.
[0041] This application utilizes multiple lifting lugs 45, each threadedly installed in corresponding adjustment holes 435, with multiple connecting ropes 42 correspondingly mounted on the lifting lugs 45. The connection of the connecting ropes 42 to the lifting lugs 45 facilitates replacement of worn connecting ropes 42, reducing labor intensity. The threaded installation of the multiple lifting lugs 45 in the corresponding adjustment holes 435 allows for easy adjustment of the position between the connecting ropes 42 and the first and second limit blocks 431 and 432, ensuring better fit of the connecting ropes 42 onto the T-type gas-insulated switch 100, further improving stability and safety during lifting, and making it suitable for various lifting environments.
[0042] The first limiting block 431 and the second limiting block 432 can also be quickly connected to the connecting rope 42 via the lifting lug 45, which improves the efficiency of assembly.
[0043] Please see Figures 1 to 4 In some embodiments, multiple connecting ropes 42 are arranged in a cross shape on the connecting block 41.
[0044] This application uses multiple connecting ropes 42 arranged in a cross shape on the connecting block 41. The multiple connecting ropes 42 arranged in a cross shape can wrap around the T-type gas-insulated switch 100 during hoisting, improving the limiting of the T-type gas-insulated switch 100 and further improving the stability and firmness during the hoisting process.
[0045] Please see Figure 1 and Figure 3 In some embodiments, the inflation device 3 includes an air pump 31 and a seal 32. The seal 32 is detachably mounted on the T-type gas-insulated switch 100 to keep the interior of the T-type gas-insulated switch 100 sealed. The air pump 31 is mounted on the gantry 1 and inflates the interior of the T-type gas-insulated switch 100 through the inflation pipe 33.
[0046] This application allows for the detachable installation of a sealing element 32 on a T-type gas-insulated switch 100 to keep the interior of the T-type gas-insulated switch 100 sealed. An air pump 31 is installed on a gantry frame 1 and pressurizes the interior of the T-type gas-insulated switch 100 through an air filling pipe 33. The sealing element 32 is plugged into the flange of the T-type gas-insulated switch 100. Bolts can be used to fasten the sealing element 32 to the flange, maintaining a seal inside the T-type gas-insulated switch 100. Then, the air pump 31 is connected to the interior of the T-type gas-insulated switch 100 via the air filling pipe 33. Air is then pumped into the T-type gas-insulated switch 100 using dry carbon dioxide or inert gas from a gas cylinder, ensuring the internal pressure is higher than the external atmospheric pressure. The pressure can be monitored using a pressure gauge on the air pump 31, and pumping stops once a specified value is reached. The air filling pipe 33 and the air pump 31 can remain connected to the T-type gas-insulated switch 100, replenishing the pressure as needed. Alternatively, the air filling pipe 33 can be disconnected from the T-type gas-insulated switch 100, and the air filling port on the T-type gas-insulated switch 100 can be blocked to maintain an internal seal. This can prevent the intrusion of external humid air, reduce corrosion of the 100 pairs of T-type gas-insulated switches, and extend their service life.
[0047] Please see Figure 1 , Figure 3 and Figure 5 In some embodiments, the field assembly tool for the T-type gas-insulated switch also includes a traveling device 5 mounted on the gantry 1. The traveling device 5 includes casters 51 and brakes 52. The casters 51 are symmetrically mounted on the gantry 1, and the brakes 52 are mounted on the gantry 1 corresponding to the casters 51.
[0048] This application utilizes casters 51 symmetrically mounted on the gantry frame 1, with brake components 52 correspondingly mounted on the gantry frame 1. The casters 51 facilitate the movement of the gantry frame 1. When transporting the T-type gas-insulated switch 100 to the designated installation position, the casters 51 can drive the hoisted T-type gas-insulated switch 100 to the appropriate installation position quickly, thereby improving the efficiency of transportation and installation. It also allows for timely installation of the T-type gas-insulated switch 100 in spaces where large gantry cranes cannot operate, reducing labor intensity and making it suitable for more usage environments.
[0049] Among them, the brake component 52 is used to keep the gantry frame 1 stationary during assembly or installation, which improves stability and safety, and can also maintain a good lifting posture during storage.
[0050] Please see Figure 1 , Figure 3 and Figure 5 In some embodiments, the brake component 52 includes a threaded rod 521 and a support block 522. The threaded rod 521 is mounted on the gantry 1 via a threaded pair, and the support block 522 is mounted on the threaded rod 521.
[0051] This application uses a threaded rod 521 mounted on a gantry frame 1 via a threaded joint, with a support block 522 mounted on the threaded rod 521. To brake, after stabilizing the gantry frame 1, the threaded rod 521 is rotated, causing it to move the support block 522 towards the ground. The friction between the support block 522 and the ground is used for braking, facilitating operation, simplifying manufacturing, and reducing production costs.
[0052] Among them, multiple threaded rods 521 can drive their respective support blocks 522 to descend to different depths, and also have a certain leveling function, improving the stability during assembly or installation, and are suitable for more usage environments.
[0053] Please see Figure 1 and Figure 3 In some embodiments, the sides of the gantry frame 1 are configured as triangular or arched.
[0054] This application designs the sides of the gantry frame 1 as either triangular or arched. A gantry frame 1 with triangular sides is more stable, less prone to deformation, and safer during use. A gantry frame 1 with arched sides can better distribute the load, increasing the lifting capacity and expanding its applicability.
[0055] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.
Claims
1. A T-head gas insulated switch field assembly tool characterized by, include: Gantry (1), lifting device (2) and inflation device (3), and connecting assembly (4) for connecting the T-type gas-insulated switch (100) to the lifting device (2); The lifting device (2) is installed on the gantry frame (1); The connecting assembly (4) is mounted on the lifting device (2); The inflation device (3) is installed on the gantry (1) to inflate the assembled T-type gas-insulated switch (100) with gas, so that the inside is kept under high pressure. The connecting component (4) includes a connecting block (41), connecting ropes (42), and a limiting member (43). One end of each of the connecting ropes (42) is disposed on the connecting block (41), and the other end of each of the connecting ropes (42) is disposed on the limiting member (43). The limiting member (43) is symmetrically provided with limiting grooves (44) for accommodating the T-type gas-insulated switch (100). The limiting member (43) is disposed at the T-shaped inflection point of the T-type gas-insulated switch (100) through the limiting grooves (44).
2. The T-head gas insulated switch field assembly tool of claim 1, wherein, The limiting member (43) includes: a first limiting block (431), a second limiting block (432), and a locking member (433). The first limiting block (431) is detachably mounted on the second limiting block (432) via the locking member (433). The limiting groove (44) on the first limiting block (431) and the limiting groove (44) on the second limiting block (432) surround each other to form a limiting hole (434) for accommodating the T-type gas-insulated switch (100).
3. The T-head gas insulated switch field assembly tool of claim 2, wherein, Both the first limiting block (431) and the second limiting block (432) are provided with multiple adjusting holes (435), and the locking member (433) cooperates with the adjusting holes (435) to change the size of the limiting hole (434).
4. The T-head gas insulated switch field assembly tool of claim 3, wherein, Both the first limiting block (431) and the second limiting block (432) are U-shaped.
5. The T-head gas insulated switch field assembly tool of claim 3, wherein, The connecting assembly (4) also includes a plurality of lugs (45), each of which is installed in a corresponding adjusting hole (435) via a threaded pair, and a plurality of connecting ropes (42) are correspondingly arranged on the lugs (45).
6. The field assembly tool for the T-type gas-insulated switch according to claim 1, characterized in that, Multiple connecting ropes (42) are arranged in a cross shape on the connecting block (41).
7. The T-head gas insulated switch field assembly tool of claim 1, wherein, The inflation device (3) includes an air pump (31) and a sealing element (32). The sealing element (32) is detachably installed on the T-type gas-insulated switch (100) to keep the interior of the T-type gas-insulated switch (100) sealed. The air pump (31) is installed on the gantry (1) and inflates the interior of the T-type gas-insulated switch (100) through the inflation pipe (33).
8. The T-head gas insulated switch field assembly tool of claim 1, wherein, The field assembly tool for the T-type gas-insulated switch also includes a traveling device (5) installed on the gantry (1). The traveling device (5) includes a caster wheel (51) and a brake (52). The caster wheel (51) is symmetrically installed on the gantry (1), and the brake (52) is installed on the gantry (1) in correspondence with the caster wheel (51).
9. The T-head gas insulated switch field assembly tool of claim 8, wherein, The brake piece (52) comprises a threaded rod (521) and a support block (522), the threaded rod (521) is installed on the portal frame (1) through a threaded pair, and the support block (522) is installed on the threaded rod (521).
10. The T-head gas insulated switch field assembly tool of claim 1, wherein, The side surface of the portal frame (1) is provided in a triangular shape or an arch shape.