Voltage transformer for station

Abstract

The invention belongs to the technical field of voltage transformers, and discloses a station voltage transformer which comprises a voltage transformer body. The wiring terminal is arranged at the bottom of one side of the voltage transformer body; the shielding and sealing mechanism comprises a first shielding plate, the first shielding plate is arranged at the bottom of one side of the wiring end, and a second shielding plate located above the first shielding plate is hinged to one side of the wiring end. When the whole second shielding plate is turned over to enable the power assembly to push internal gas into the locking assembly, the outer end of the locking assembly can move outwards, so that the outer end of the locking assembly can be clamped in the terminal, and the whole second shielding plate is clamped and fixed to one side of the terminal. And finally, the connection position between one side of the wiring end and the connected electric wire can be shielded and sealed through the first shielding plate and the second shielding plate, so that the influence of external dust and moisture on the wiring end can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of voltage transformers, in particular to a station-used voltage transformer. Background Art

[0002] A station voltage transformer refers to a voltage transformer used in a substation. It is usually installed in power facilities such as substations or power plants. Its main function is to proportionally reduce the high voltage in the power system to a standard low voltage, and then supply it to various measuring instruments, relay protection devices and automatic devices.

[0003] One side of the existing station voltage transformer is provided with a corresponding wiring port, which can be used to connect the wires of other equipment to the voltage transformer for circuit protection. However, when wiring, the connection position of the wires and the wiring port is usually exposed to the outside world and lacks dust and moisture-proof effects, which will cause external dust and moisture to contact this position, causing short-circuit damage at the connection position. Therefore, it needs to be improved. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a station voltage transformer, which has the advantage of being easy to shield and seal the wiring position.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a station voltage transformer, comprising a voltage transformer body; a terminal, arranged at the bottom of one side of the voltage transformer body; a shielding and sealing mechanism, comprising a first shielding plate, the first shielding plate is arranged at the bottom of one side of the terminal, one side of the terminal is hinged with a second shielding plate located above the first shielding plate, one side surface of the second shielding plate is slidably connected with a closed upper clamping shell, the inside of the terminal is provided with a flip assembly located at the top of both ends of the other side of the second shielding plate, a locking assembly is arranged in the middle of the outer side of the second shielding plate, and the inside of the second shielding plate is provided with a power assembly located at the outer end of the other side of the locking assembly.

[0006] Preferably, mounting blocks are provided on both sides of the bottom of the voltage transformer body.

[0007] Preferably, the flip assembly includes a push arc block and an arc spring;

[0008] The push arc block is fixedly mounted on the outer end of the top of the other side of the second shielding plate, and the push arc block is elastically connected to the inner wall of the wiring terminal through an arc spring.

[0009] Preferably, the locking assembly comprises a first air cylinder, a first pneumatic piston rod and a locking block;

[0010] The first gas cylinder is fixedly installed on the outside of the second baffle plate, the first pneumatic piston rod is movably installed in the inner cavity of the first gas cylinder, the locking block is fixedly installed on the outer end of the first pneumatic piston rod, and the interior of the second baffle plate is provided with a trigger assembly located on the outside of the first gas cylinder.

[0011] Preferably, the power assembly comprises a second air cylinder, a second pneumatic piston rod and a venting groove;

[0012] The second air cylinder is arranged inside the other side of the second shielding plate and located outside the first pneumatic piston rod. The second pneumatic piston rod is movably installed in the inner cavity of the second air cylinder. The second air cylinder is fixedly connected to the first air cylinder through the ventilation groove.

[0013] Preferably, the trigger assembly includes a trigger block, a connecting column and a power spring;

[0014] The trigger block is movably installed inside the second shielding plate and is located outside the first air cylinder. The connecting column is arranged on the top of the trigger block. The top of the connecting column is elastically connected to the inner wall of the second shielding plate through a power spring.

[0015] Preferably, an unlocking push block located at one side of the outer end of the locking block is slidably installed inside the wiring terminal, and an inclined surface at one end of the unlocking push block is in contact with the inclined surface of the outer end of the locking block.

[0016] Preferably, a linkage assembly located between the connecting column and the upper clamping shell is provided inside the second shielding plate, and the linkage assembly includes a fixed frame, a rotating plate and a linkage shaft;

[0017] The fixed frame is respectively fixedly installed on the outer bottom of the closed upper shell and the inner top of the power spring, the rotating plate is movably sleeved inside the second shielding plate and one side of the fixed frame, and the two ends of the fixed frame are movably sleeved with the inner wall of the fixed frame through a linkage shaft.

[0018] Preferably, a sealing clamping assembly is provided between the first shielding plate and the second shielding plate, and the sealing clamping assembly comprises a lower clamping member and an upper clamping member;

[0019] The lower clamping member is fixedly mounted on the top of the first shielding plate, and the upper clamping member is arranged at the bottom of the second shielding plate and is located directly above the lower clamping member. The lower clamping member and the upper clamping member are both made of rubber.

[0020] Preferably, the second shielding plate has a gas delivery assembly located above one side of the closed upper shell inside, and the gas delivery assembly includes a gas storage cylinder, a connecting piston rod and a gas delivery pipe;

[0021] The air cylinder is fixedly installed inside the second baffle plate and is located above one end of the upper shell. The connecting piston rod is movably installed in the inner cavity of the air cylinder, and the bottom end is fixedly connected to the top of one end of the upper shell. The bottom end of the air cylinder is fixedly connected to the upper clamping member through an air pipe.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The above-mentioned technical scheme is implemented by setting a second baffle plate, a locking assembly and a power assembly. When the second baffle plate is flipped as a whole so that the power assembly pushes the internal gas into the interior of the locking assembly, the outer end of the locking assembly can be moved outward, so that the outer end of the locking assembly can be stuck inside the wiring terminal, and then the second baffle plate as a whole can be clamped and fixed on one side of the wiring terminal. Finally, the first baffle plate and the second baffle plate can be used to block and seal the connection position between one side of the wiring terminal and the connected wire, thereby preventing it from being affected by external dust and moisture.

[0024] The present invention provides a trigger component and a linkage component. When the second shielding plate is flipped over and completely fits one side of the wiring terminal, the bottom end of the trigger component can be squeezed upward, thereby driving the linkage component as a whole to drive the upper clamping shell to move downward as a whole. The upper clamping shell can be pressed down to clamp and fit multiple wires together, thereby clamping and sealing the wires while closing them, avoiding the situation where multiple wires are crossed and tangled, which affects subsequent voltage transmission.

[0025] The present invention provides a sealing clamping assembly and a gas transmission assembly. When the entire upper clamping shell is driven downward, the bottom end of the gas transmission assembly is driven to extend downward synchronously, thereby pushing the gas inside the gas transmission assembly to enter the top of the sealing clamping assembly, so that the internal air pressure of the sealing clamping assembly at the top becomes larger, thereby causing the top of the sealing clamping assembly to expand and fully contact the surface of the wire, and finally the clamped part of the wire is completely blocked and sealed, thereby greatly improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the wiring terminal of the present invention;

[0028] Figure 3 It is a schematic cross-sectional structural diagram of the gas delivery assembly of the present invention;

[0029] Figure 4 is a schematic cross-sectional structural diagram of the second shielding plate of the present invention;

[0030] Figure 5 for Figure 4A schematic diagram of the local enlarged structure at point A in the middle;

[0031] Figure 6 It is a schematic diagram of the side cross-sectional structure of the terminal of the present invention;

[0032] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at B in the middle;

[0033] Figure 8 It is a schematic diagram of the local structure of the linkage assembly of the present invention.

[0034] In the figure: 1, voltage transformer body; 2, mounting block; 3, terminal; 4, shielding and sealing mechanism; 401, first shielding plate; 402, second shielding plate; 403, closing the upper clamping shell; 404, flip assembly; 4041, pushing arc block; 4042, arc spring; 405, locking assembly; 4051, first air cylinder; 4052, first pneumatic piston rod; 4053, locking block; 406, power assembly; 4061, second air cylinder ; 4062, second pneumatic piston rod; 4063, ventilation groove; 5, trigger assembly; 501, trigger block; 502, connecting column; 503, power spring; 6, unlocking push block; 7, linkage assembly; 701, fixed frame; 702, rotating plate; 703, linkage shaft; 8, sealing clamping assembly; 801, lower clamping piece; 802, upper clamping piece; 9, gas delivery assembly; 901, gas cylinder; 902, connecting piston rod; 903, gas delivery pipe. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 8 As shown, the present invention provides a station voltage transformer, including a voltage transformer body 1; a terminal 3, which is arranged at the bottom of one side of the voltage transformer body 1; a shielding and sealing mechanism 4, including a first shielding plate 401, the first shielding plate 401 is arranged at the bottom of one side of the terminal 3, one side of the terminal 3 is hinged with a second shielding plate 402 located above the first shielding plate 401, one side surface of the second shielding plate 402 is slidably connected with a closed upper clamping shell 403, the inside of the terminal 3 is provided with a flip assembly 404 located at the top of both ends of the other side of the second shielding plate 402, a locking assembly 405 is arranged in the middle of the inner outer side of the second shielding plate 402, and the inside of the second shielding plate 402 is provided with a power assembly 406 located at the outer end of the other side of the locking assembly 405.

[0037] At this time, since the extended portion of one end of the first shielding plate 401 is the same as the extended portion of the upper clamping shell 403, multiple wires can be clamped and brought close together by the extended portions of both.

[0038] like Figure 1 As shown, mounting blocks 2 are provided on both sides of the bottom of the voltage transformer body 1 .

[0039] By adopting the above solution, by providing the mounting block 2, when the operator needs to install the voltage transformer body 1 as a whole at a specified position, the mounting block 2 can be used in conjunction with bolts to install the voltage transformer body 1 as a whole.

[0040] like Figure 7 As shown, the flip assembly 404 includes a push arc block 4041 and an arc spring 4042;

[0041] The pushing arc block 4041 is fixedly installed on the outer end of the top of the other side of the second shielding plate 402 , and the pushing arc block 4041 is elastically connected to the inner wall of the terminal 3 through the arc spring 4042 .

[0042] By adopting the above scheme: by providing an arc spring 4042, when the second baffle plate 402 is overall released from the locking effect of the contact with one side of the terminal 3, the elastic force of the arc spring 4042 can be smoothly released, thereby pushing the arc block 4041 to drive the second baffle plate 402 to flip open as a whole.

[0043] like Figure 5 As shown, the locking assembly 405 includes a first air cylinder 4051, a first pneumatic piston rod 4052 and a locking block 4053;

[0044] The first gas cylinder 4051 is fixedly installed on the outside of the second baffle plate 402, the first pneumatic piston rod 4052 is movably installed in the inner cavity of the first gas cylinder 4051, the locking block 4053 is fixedly installed on the outer end of the first pneumatic piston rod 4052, and the interior of the second baffle plate 402 is provided with a trigger assembly 5 located on the outside of the first gas cylinder 4051.

[0045] The above scheme is adopted: by providing a locking block 4053, when gas enters the inner cavity of the outer end of the first gas cylinder 4051, the first pneumatic piston rod 4052 and the locking block 4053 can be pushed by the air pressure as a whole to move in opposite directions, so that the outer end of the locking block 4053 can pass through the trigger assembly 5 and be inserted into the interior of the terminal 3, thereby the second baffle plate 402 can be locked and fixed as a whole.

[0046] like Figure 5 As shown, the power assembly 406 includes a second air cylinder 4061, a second pneumatic piston rod 4062 and a venting groove 4063;

[0047] The second air cylinder 4061 is arranged inside the other side of the second baffle plate 402 and is located outside the first pneumatic piston rod 4052. The second pneumatic piston rod 4062 is movably installed in the inner cavity of the second air cylinder 4061. The second air cylinder 4061 is fixedly connected to the first air cylinder 4051 through the ventilation groove 4063.

[0048] The above scheme is adopted: by providing a second pneumatic piston rod 4062, when the other side of the second baffle plate 402 is completely fitted with one side of the terminal 3, the second pneumatic piston rod 4062 will be squeezed and pushed to retract into the inner cavity of the second gas cylinder 4061, so that the gas in the inner cavity of the second gas cylinder 4061 will be pushed through the ventilation groove 4063 into the first gas cylinder 4051, and the gap on the other side of the inner cavity of the second gas cylinder 4061 will become larger, and the molecular distance of the gas will become larger. When the second baffle plate 402 is released from the terminal 3, the support for the second pneumatic piston rod 4062 can be released, so that the gas in the inner cavity on the other side of the second gas cylinder 4061 can be restored, thereby driving the second pneumatic piston rod 4062 to move and reset as a whole.

[0049] like Figure 8 As shown, the trigger assembly 5 includes a trigger block 501, a connecting column 502 and a power spring 503;

[0050] The trigger block 501 is movably installed inside the second baffle plate 402 and is located outside the first air cylinder 4051. The connecting column 502 is set on the top of the trigger block 501. The top of the connecting column 502 is elastically connected to the inner wall of the second baffle plate 402 through a power spring 503.

[0051] The above scheme is adopted: by providing a power spring 503, when the second baffle plate 402 is flipped and completely fits with one side of the terminal 3, the bottom slope of the trigger block 501 will be squeezed, causing the trigger block 501 and the connecting column 502 to move upward as a whole, while compressing the power spring 503. When the elastic force of the power spring 503 is released, the connecting column 502 and the trigger block 501 can be pushed to reset downward as a whole.

[0052] like Figure 5 As shown, an unlocking push block 6 located at one side of the outer end of the locking block 4053 is slidably installed inside the wiring terminal 3, and the inclined surface of one end of the unlocking push block 6 is in contact with the inclined surface of the outer end of the locking block 4053.

[0053] The above scheme is adopted: by providing an unlocking push block 6, when the operator pushes the unlocking push block 6 to move to one side as a whole, the inclined surface on one side of the unlocking push block 6 can squeeze and push the outer ends of the two locking blocks 4053 to separate from the interior of the terminal 3, and the fixing effect of the second baffle plate 402 and the terminal 3 can be released.

[0054] like Figure 8 As shown, the second shielding plate 402 is provided with a linkage assembly 7 between the connecting column 502 and the upper clamping shell 403, and the linkage assembly 7 includes a fixed frame 701, a rotating plate 702 and a linkage shaft 703;

[0055] The fixed frame 701 is fixedly installed on the outer bottom of the closed upper clamping shell 403 and the inner top of the power spring 503 respectively. The rotating plate 702 is movably connected to the inside of the second baffle plate 402 and one side of the fixed frame 701. The two ends of the fixed frame 701 are movably connected to the inner wall of the fixed frame 701 through the linkage shaft 703.

[0056] The above scheme is adopted: by providing a linkage shaft 703, when the connecting column 502 drives the outer fixed frame 701 to move upward as a whole, the inner wall of the fixed frame 701 can squeeze the top linkage shaft 703 to slide on the inner wall, so that the rotating plate 702 is deflected as a whole, and then the bottom linkage shaft 703 can slide on the inner wall of the inner linkage shaft 703, thereby driving the inner fixed frame 701 and the closed upper clamping shell 403 to move downward as a whole.

[0057] like Figure 2 As shown, a sealing clamping assembly 8 is disposed between the first shielding plate 401 and the second shielding plate 402, and the sealing clamping assembly 8 includes a lower clamping member 801 and an upper clamping member 802;

[0058] The lower clamping member 801 is fixedly mounted on the top of the first shielding plate 401 , and the upper clamping member 802 is disposed at the bottom of the second shielding plate 402 and is located directly above the lower clamping member 801 . Both the lower clamping member 801 and the upper clamping member 802 are made of rubber.

[0059] The above solution is adopted: through the deformable design of the upper clamping member 802, when gas enters the interior, expansion can occur smoothly.

[0060] like Figure 2 As shown, inside the second shielding plate 402, there is a gas delivery assembly 9 located above one side of the closed upper shell 403, and the gas delivery assembly 9 includes a gas storage cylinder 901, a connecting piston rod 902 and a gas delivery pipe 903;

[0061] The air cylinder 901 is fixedly installed inside the second baffle plate 402 and is located above one end of the upper clamping shell 403. The connecting piston rod 902 is movably installed in the inner cavity of the air cylinder 901, and the bottom end is fixedly connected to the top of one end of the upper clamping shell 403. The bottom end of the air cylinder 901 is fixedly connected to the upper clamping member 802 through the air supply pipe 903.

[0062] The above scheme is adopted: by providing a connecting piston rod 902, when the upper clamping shell 403 is closed to drive the connecting piston rod 902 to move downward synchronously, the gas stored in the inner cavity at the bottom of the gas storage cylinder 901 can be pushed through the gas pipe 903 into the interior of the upper clamping member 802, so that the upper clamping member 802 can expand smoothly, so that it can fit tightly to the surface of the clamped wire, so as to greatly improve the sealing performance.

[0063] The working principle and use process of the present invention:

[0064] First, the unlocking push block 6 can be pressed to squeeze and push the locking block 4053 toward and away from the inside of the terminal 3, thereby releasing the locking effect on the second baffle plate 402, and releasing the elastic force of the arc spring 4042, thereby pushing the arc block 4041 to drive the second baffle plate 402 to rotate and open as a whole. Then the operator can install and connect the corresponding wires to the inside of the terminal 3, and place the outer end of the wire on the top of the first baffle plate 401 for preliminary closing and limiting.

[0065] Afterwards, the operator can flip the second baffle plate 402 as a whole to contact one side of the terminal 3, at which time the inclined surface at the bottom end of the trigger block 501 will be squeezed to push the trigger block 501 and the connecting column 502 upward as a whole, so that the outer fixed frame 701 can move upward synchronously, and then the linkage shaft 703 at the top of the rotating plate 702 can slide on the outside of the outer fixed frame 701, so that the rotating plate 702 can rotate smoothly, and the rotating plate 702 at the bottom can slide on the inner wall of the inner fixed frame 701, thereby smoothly driving the inner fixed frame 701 and the closed upper clamping shell 403 to move downward as a whole, so that the closed upper clamping shell 403 clamps multiple lines together to avoid clutter of wires.

[0066] When the second baffle plate 402 is completely fitted with one side of the terminal 3, the second pneumatic piston rod 4062 will be squeezed and inserted into the inner cavity of the second gas cylinder 4061, so that the gas in the inner cavity of the second gas cylinder 4061 is pushed through the ventilation groove 4063 to enter the inner cavity of the first gas cylinder 4051. Subsequently, since the trigger block 501 is completely upward as a whole, the outer end of the first pneumatic piston rod 4052 can be directly opposite to the inner groove of the trigger block 501, so that the enlarged gas inside the first gas cylinder 4051 can smoothly push the first pneumatic piston rod 4052 to move in the opposite direction, so that the outer end of the first pneumatic piston rod 4052 can be inserted into the interior of the terminal 3, so that the second baffle plate 402 can be smoothly fixed on one side of the terminal 3 to block the connection position between the wire and the terminal 3.

[0067] Finally, when the second baffle plate 402 moves upward as a whole, it can drive the connected piston rod 902 to move downward as a whole, so as to push the gas at the bottom of the inner cavity of the gas storage cylinder 901 into the interior of the upper clamping member 802 through the gas pipe 903, so that the upper clamping member 802 expands at the same time until it fully fits with the surface of the wire, and the position can be clamped and sealed.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A station voltage transformer, characterized in that: It comprises a voltage transformer body (1); A wiring terminal (3) is arranged at the bottom of one side of the voltage transformer body (1); The shielding and sealing mechanism (4) comprises a first shielding plate (401), the first shielding plate (401) being arranged at the bottom of one side of the connection terminal (3), a second shielding plate (402) being hingedly connected to one side of the connection terminal (3) and being located above the first shielding plate (401), a surface of one side of the second shielding plate (402) being slidably connected to a closed upper clamping shell (403), a flip assembly (404) being arranged inside the connection terminal (3) and being located at the top of both ends of the other side of the second shielding plate (402), a locking assembly (405) being arranged in the middle of the outer side of the second shielding plate (402), and a power assembly (406) being arranged inside the second shielding plate (402) and being located at the outer end of the other side of the locking assembly (405).

2. The station voltage transformer according to claim 1, characterized in that: Mounting blocks (2) are arranged on both sides of the bottom of the voltage transformer body (1).

3. The station voltage transformer according to claim 1, characterized in that: The flip assembly (404) includes a push arc block (4041) and an arc spring (4042); The push arc block (4041) is fixedly mounted on the outer end of the top of the other side of the second shielding plate (402), and the push arc block (4041) is elastically connected to the inner wall of the terminal (3) via an arc spring (4042).

4. The station voltage transformer according to claim 1, characterized in that: The locking assembly (405) comprises a first air cylinder (4051), a first pneumatic piston rod (4052) and a locking block (4053); The first gas cylinder (4051) is fixedly mounted on the outside of the second baffle plate (402), the first pneumatic piston rod (4052) is movably mounted in the inner cavity of the first gas cylinder (4051), the locking block (4053) is fixedly mounted on the outer end of the first pneumatic piston rod (4052), and the interior of the second baffle plate (402) is provided with a trigger assembly (5) located on the outside of the first gas cylinder (4051).

5. The station voltage transformer according to claim 1, characterized in that: The power assembly (406) includes a second air cylinder (4061), a second pneumatic piston rod (4062) and a ventilation groove (4063); The second air cylinder (4061) is arranged inside the other side of the second baffle plate (402) and is located outside the first pneumatic piston rod (4052). The second pneumatic piston rod (4062) is movably installed in the inner cavity of the second air cylinder (4061). The second air cylinder (4061) is fixedly connected to the first air cylinder (4051) through the ventilation groove (4063).

6. The station voltage transformer according to claim 4, characterized in that: The trigger assembly (5) comprises a trigger block (501), a connecting column (502) and a power spring (503); The trigger block (501) is movably installed inside the second shielding plate (402) and is located outside the first air cylinder (4051). The connecting column (502) is arranged on the top of the trigger block (501). The top of the connecting column (502) is elastically connected to the inner wall of the second shielding plate (402) through a power spring (503).

7. The station voltage transformer according to claim 1, characterized in that: An unlocking push block (6) located at one side of the outer end of the locking block (4053) is slidably mounted inside the wiring terminal (3), and an inclined surface at one end of the unlocking push block (6) is in contact with an inclined surface at the outer end of the locking block (4053).

8. The station voltage transformer according to claim 1, characterized in that: The second shielding plate (402) is provided with a linkage assembly (7) located between the connecting column (502) and the upper clamping shell (403) which is closed together, and the linkage assembly (7) comprises a fixed frame (701), a rotating plate (702) and a linkage shaft (703); The fixed frame (701) is respectively fixedly mounted on the outer bottom of the closed upper clamping shell (403) and the inner top of the power spring (503); the rotating plate (702) is movably sleeved inside the second shielding plate (402) and one side of the fixed frame (701); and the two ends of the fixed frame (701) are movably sleeved with the inner wall of the fixed frame (701) via a linkage shaft (703).

9. The station voltage transformer according to claim 1, characterized in that: A sealing clamping assembly (8) is provided between the first shielding plate (401) and the second shielding plate (402), and the sealing clamping assembly (8) comprises a lower clamping member (801) and an upper clamping member (802); The lower clamping member (801) is fixedly mounted on the top of the first shielding plate (401), and the upper clamping member (802) is arranged at the bottom of the second shielding plate (402) and is located directly above the lower clamping member (801). Both the lower clamping member (801) and the upper clamping member (802) are made of rubber.

10. The station voltage transformer according to claim 1, characterized in that: The second shielding plate (402) has a gas delivery assembly (9) located above one side of the closed upper shell (403), wherein the gas delivery assembly (9) includes a gas storage cylinder (901), a connecting piston rod (902) and a gas delivery pipe (903); The gas cylinder (901) is fixedly installed inside the second baffle plate (402) and is located above one end of the upper clamping shell (403). The connecting piston rod (902) is movably installed in the inner cavity of the gas cylinder (901), and the bottom end is fixedly connected to the top of one end of the upper clamping shell (403). The bottom end of the gas cylinder (901) is fixedly connected to the upper clamping member (802) through the gas pipe (903).

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