Electric shielding structure for motor transformer ascending flanged base

Abstract

The invention discloses an electric shielding structure for an ascending flanged base of a motor transformer, which comprises two shielding shells, the two shielding shells are correspondingly arranged in a covering manner, one ends of the two shielding shells are provided with openings corresponding to the ascending flanged base, and two sealing gaskets are fixedly arranged at the openings; the two sealing gaskets are fixedly arranged at the openings of the two shielding shells through fixing mechanisms, the two shielding shells are provided with covering and tightening mechanisms corresponding to the shielding shells, side grooves are formed in the inner walls of the two shielding shells, the two side grooves are attached to the shielding shells in a U-shaped mode, and the two shielding shells are arranged in a U-shaped mode. And a plurality of shielding plates are arranged in the two side grooves in a sliding manner, and the plurality of shielding plates are arranged in sequence from inside to outside. The electric shielding structure can be rapidly installed on the ascending flanged base of the transformer, airtight isolation is carried out to achieve electric shielding, the shielding plate of the telescopic groove can be popped up along with ascending and descending of the ascending flanged base, and the electric shielding structure can adapt to ascending and descending to continuously keep a point shielding state.

Description

Technical Field

[0001] The invention relates to the technical field of transformer electric shielding, and in particular to an electric shielding structure for a motor transformer elevation seat. Background Art

[0002] A shielding measure that uses conductive material grounding to suppress electric field coupling interference between common ground circuits. A grounded shielding box, shell or plate is used to separate two common ground circuits. The electric field generated by the circuit at a high potential is blocked by the shielding body, and the charge induced on the shielding body enters the ground through the grounding point, thereby suppressing the coupling interference of the electric field. That is, a hollow sealed metal box is placed in an electric field. No matter how strong the electric field is outside the box, there is no electric field inside the box. The electric field inside the box is zero, and the entire metal box is an isothermal body, which is called electric field shielding. Electric shielding is to prevent high voltage field strength from interfering with components. The design principle of electric shielding is to use a shielding body to minimize the distributed capacitance between the interference source and the receptor, thereby reducing the impact of the interference source on the receptor.

[0003] When using motor transformers, some larger transformers often need to adapt to the transformer's lifting base for height adjustment. In order to prevent the strong electric field around the transformer from interfering with the control circuit of the lifting base, the lifting base often needs to be electrically shielded. However, due to the lifting characteristics of the lifting base, the traditional electric shielding structure is difficult to adapt and use. For this reason, we propose an electric shielding structure for the motor transformer lifting base to solve the above problem. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose an electric shielding structure for a motor transformer elevation seat.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An electric shielding structure for a motor transformer elevation seat, comprising two shielding shells, the two shielding shells are arranged in a corresponding covering manner, one end of the two shielding shells is provided with an opening corresponding to the elevation seat, and two sealing gaskets are fixedly arranged at the opening, the two sealing gaskets are fixedly arranged at the openings of the two shielding shells through a fixing mechanism, the two shielding shells are provided with corresponding covering and tightening mechanisms, and the inner walls of the two shielding shells are provided with side grooves, the two side grooves are both arranged in a U-shape in affixed manner to the shielding shells, a plurality of shielding plates are slidably arranged in the two side grooves, and the plurality of shielding plates are arranged in sequence from the inside to the outside, the inner shielding plate is slidably arranged on the inner wall of the outer shielding plate through a slider, and the outermost shielding plate is slidably arranged on the inner wall of the side groove through a slider, the shielding plate and the inner wall of the side groove are provided with lifting grooves corresponding to the sliders, each of the sliders is connected to the side wall of the lifting groove through a third spring, a sealing sleeve is fixedly arranged on the outer wall of each shielding plate, and the two shielding shells are provided with corresponding clamping mechanisms.

[0006] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the fixing mechanism includes two plug-in plates, the openings of the two shielding shells are provided with slots corresponding to the plug-in plates, the side walls of the two slots are provided with receiving slots, each of the receiving slots is slidably provided with a card block, several of the card blocks are connected to the inner wall of the receiving slot through a second spring, the side wall of each card block close to the slot is inclined, the side walls of the two plug-in plates are provided with slots corresponding to the card blocks, the side walls of each card block are fixedly provided with a lever, several of the levers are slidably penetrated through the upper wall of the shielding shell, and the upper wall of the shielding shell is provided with several strip-shaped sliding openings corresponding to the levers.

[0007] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the covering and tightening mechanism includes two tensioning plates, and the two tensioning plates are respectively slidably arranged on the two side walls of a shielding shell through sliding blocks, and the two side walls of the shielding shell are provided with sliding grooves corresponding to the sliding blocks, and second threaded rods are rotatably arranged in the two sliding grooves, and the two second threaded rods are respectively rotated to pass through the two sliding blocks, and the two sliding blocks are provided with threaded through holes corresponding to the second threaded rods, and one end of the two second threaded rods are rotated to pass through the side wall of the shielding shell and are fixedly connected with a second handle, and the two tensioning plates are provided with a connecting mechanism corresponding to the shielding shell.

[0008] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the connecting mechanism includes two card plates, and the side walls of the two tensioning plates close to the shielding shell are provided with telescopic grooves corresponding to the card plates, the two card plates are respectively slidably set in the two telescopic grooves, and each of the card plates is connected to the inner wall of the telescopic groove through a first spring, the side walls of the two card plates away from the sliding block are inclined, and the side walls of the shielding shell away from the sliding block are provided with card slots corresponding to the card plates, and the two card plates are provided with corresponding pulling mechanisms.

[0009] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the pulling mechanism includes two pull rods, which are respectively fixed on the side walls of one end of the two clamping plates close to the first spring, and the two pull rods respectively slide through the side walls of the two tensioning plates, and the ends of the two pull rods away from the clamping plates are fixedly connected with pull handles.

[0010] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the clamping mechanism includes two clamping plates, the side walls of the two shielding shells are fixedly provided with side plates, the two clamping plates are slidably provided on the two side plates through slides, the two side plates are provided with sliding grooves corresponding to the slides, the two sliding grooves are rotatably provided with first threaded rods, the two first threaded rods are rotatably passed through the two slides, the two slides are provided with threaded through holes corresponding to the first threaded rods, and one end of the two first threaded rods are respectively rotated to pass through the side walls of the two side plates and are fixedly connected with a first turning handle.

[0011] The advantages of the present invention are: through the cooperation of the slider and the third spring, the shielding plate can be quickly popped out when the lifting seat is raised, and through the combination of the shielding plate and the shielding shell, the lifting seat can be continuously isolated and shielded when it is raised or lowered, thereby maintaining the electric shielding effect and avoiding the influence of the transformer electric field on the operation of the lifting seat. Through the cooperation of the second threaded rod and the sliding block, the tensioning plate is controlled, and then through the cooperation of the card plate and the card slot, the tensioning plate and the shielding shell are connected, so that the two shielding shells can be tightened, and a closed environment is formed in cooperation with the sealing gasket, thereby realizing the electric shielding of the lifting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of an electric shielding structure for a motor transformer elevation stand proposed by the present invention; Figure 2 A schematic diagram of the three-dimensional structure from another angle of the electric shielding structure for the motor transformer elevation stand proposed by the present invention; Figure 3 A schematic diagram of a top view of an electric shielding structure for a motor transformer elevation stand proposed by the present invention; Figure 4 for Figure 3 The structural diagram at A in the middle; Figure 5 The present invention is a schematic side structural diagram of an electric shielding structure for a motor transformer elevation seat.

[0013] In the figure: 1 shielding shell, 2 sealing gasket, 3 side plate, 4 sliding groove, 5 sliding plate, 6 first threaded rod, 7 clamping plate, 8 first turning handle, 9 lever, 10 sliding groove, 11 sliding block, 12 tensioning plate, 13 second threaded rod, 14 second turning handle, 15 clamping plate, 16 pull rod, 17 pull handle, 18 shielding plate, 19 plug-in plate, 20 telescopic groove, 21 first spring, 22 slot, 23 clamping block, 24 second spring, 25 storage groove, 26 third spring, 27 side groove, 28 sliding block. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] Reference Figure 1-Figure 5As shown, an electric shielding structure for a motor transformer elevation seat comprises two shielding shells 1, the two shielding shells 1 are arranged in a corresponding covering manner, one end of the two shielding shells 1 is provided with an opening corresponding to the elevation seat, and two sealing gaskets 2 are fixedly arranged at the opening, and the two sealing gaskets 2 are fixedly arranged at the openings of the two shielding shells 1 through a fixing mechanism, the fixing mechanism comprises two plug-in plates 19, the openings of the two shielding shells 1 are provided with slots 22 corresponding to the plug-in plates 19, and the side walls of the two slots 22 are provided with receiving grooves 25, each receiving groove 25 is slidably provided with a card block 23, and a plurality of card blocks 23 are connected to the inner wall of the receiving groove 25 through a second spring 24, and the side wall of each card block 23 close to the slot 22 is inclined, and the two plug-in plates The side walls of the shielding shell 1 are provided with card grooves corresponding to the card blocks 23, and the side walls of each card block 23 are fixedly provided with a lever 9, and a plurality of levers 9 are slidably penetrated through the upper wall of the shielding shell 1, and the upper wall of the shielding shell 1 is provided with a plurality of strip-shaped sliding openings corresponding to the levers 9, and the two shielding shells 1 are provided with corresponding covering and tightening mechanisms, and the covering and tightening mechanisms include two tensioning plates 12, and the two tensioning plates 12 are respectively slidably arranged on the side walls of a shielding shell 1 through the sliding blocks 11, and the side walls of the shielding shell 1 are provided with sliding grooves 10 corresponding to the sliding blocks 11, and the two sliding grooves 10 are rotatably provided with second threaded rods 13, and the two second threaded rods 13 are respectively rotatably penetrated through the two sliding blocks 11, and the two sliding blocks 11 are provided with a second threaded rod 13. The threaded through hole corresponding to the threaded rod 13, one end of the two second threaded rods 13 are rotated to penetrate the side wall of the shielding shell 1 and are fixedly connected with a second handle 14, and the two tensioning plates 12 are provided with a connecting mechanism corresponding to the shielding shell 1, and the connecting mechanism includes two card plates 15, and the side wall of the two tensioning plates 12 close to the shielding shell 1 is provided with a telescopic groove 20 corresponding to the card plate 15, and the two card plates 15 are respectively slidably arranged in the two telescopic grooves 20, and each card plate 15 is connected to the inner wall of the telescopic groove 20 through a first spring 21, and the side wall of the two card plates 15 away from the sliding block 11 is inclined, and the side walls of the shielding shell 1 away from the sliding block 11 are provided with card grooves corresponding to the card plate 15, and the two card plates 15 are provided with corresponding card grooves. The pulling mechanism includes two pull rods 16, which are respectively fixed on the side walls of the two clamping plates 15 at one end close to the first spring 21, and the two pull rods 16 slide through the side walls of the two tensioning plates 12, and the ends of the two pull rods 16 away from the clamping plates 15 are fixedly connected with pull handles 17, and the inner walls of the two shielding shells 1 are provided with side grooves 27, and the two side grooves 27 are both fitted with the U-shaped setting of the shielding shell 1, and a plurality of shielding plates 18 are slidably arranged in the two side grooves 27, and the plurality of shielding plates 18 are arranged sequentially from the inside to the outside, and the inner shielding plate 18 is slidably arranged on the inner wall of the outer shielding plate 18 through the slider 28, and the outermost shielding plate 18 is slidably arranged on the inner wall of the side groove 27 through the slider 28.The shielding plate 18 and the inner wall of the side groove 27 are provided with lifting grooves corresponding to the slider 28, each slider 28 is connected to the side wall of the lifting groove through the third spring 26, and a sealing sleeve is fixedly arranged on the outer wall of each shielding plate 18. The two shielding shells 1 are provided with a corresponding clamping mechanism, and the clamping mechanism includes two clamping plates 7. The side walls of the two shielding shells 1 are fixedly provided with side plates 3, and the two clamping plates 7 are respectively slidably arranged on the two side plates 3 through the slide plate 5. The two side plates 3 are provided with a slide groove 4 corresponding to the slide plate 5, and the two slide grooves 4 are rotatably provided with a first threaded rod 6, and the two first threaded rods 6 are rotatably arranged to penetrate the two slide plates 5. The two slide plates 5 are provided with threaded through holes corresponding to the first threaded rod 6, and one end of the two first threaded rods 6 is respectively rotated to penetrate the side walls of the two side plates 3 and is fixedly connected with a first turning handle 8, which is provided through the slider 28. The cooperation with the third spring 26 enables the shielding plate 18 to be quickly ejected when the lifting seat is raised. The combination of the shielding plate 18 and the shielding shell 1 enables the lifting seat to be continuously isolated and shielded when it is raised or lowered, thereby maintaining the electric shielding effect and preventing the transformer electric field from affecting the operation of the lifting seat. The cooperation of the second threaded rod 13 and the sliding block 11 realizes the control of the tensioning plate 12, and the cooperation of the clamping plate 15 and the clamping slot realizes the connection between the tensioning plate 12 and the shielding shell 1, so that the two shielding shells 1 can be tightened and a closed environment is formed by cooperating with the sealing gasket 2, thereby realizing the electric shielding of the lifting seat. The cooperation of the lever 9 and the clamping block 23 realizes the detachability of the sealing gasket 2, which facilitates the replacement of the sealing gasket 2 and ensures the close and sealed effect with the lifting seat. The two clamping plates 7 are provided to facilitate the clamping, installation and fixation of the shielding shell 1 on the transformer.

[0016] In the process of electric shielding of the transformer lifting seat of the present invention, the shielding shell 1 is first fitted and installed from both sides of the lifting seat, and after the lifting seat is covered, the clamping plate 15 is put into the two clamping grooves on the shielding shell 1, and the second threaded rod 13 is rotated to tighten the two shielding shells 1, and then the two first threaded rods 6 are rotated to drive the two clamping plates 7 to clamp on the transformer to complete the installation of the device. When the lifting seat is raised, the shielding plate 18 can be quickly popped out. Through the combination of the shielding plate 18 and the shielding shell 1, the lifting seat can be continuously isolated and shielded when it is raised or lowered, thereby maintaining the electric shielding effect and preventing the transformer electric field from affecting the operation of the lifting seat.

[0017] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrical shielding structure for a motor transformer elevation seat, comprising two shielding shells (1), characterized in that: The two shielding shells (1) are arranged in a corresponding covering manner, one end of the two shielding shells (1) is provided with an opening corresponding to the lifting seat, and two sealing pads (2) are fixedly arranged at the opening, and the two sealing pads (2) are fixedly arranged at the openings of the two shielding shells (1) through a fixing mechanism, the two shielding shells (1) are provided with a corresponding covering and tightening mechanism, and the inner walls of the two shielding shells (1) are provided with side grooves (27), the two side grooves (27) are arranged in a U-shape in contact with the shielding shells (1), and a plurality of shielding plates (18) are slidably arranged in the two side grooves (27), and the plurality of shielding plates (18) are fixedly arranged in contact with the shielding shells (1). 18) are arranged in sequence from the inside to the outside, the inner shielding plate (18) is slidably arranged on the inner wall of the outer shielding plate (18) through a slider (28), and the outermost shielding plate (18) is slidably arranged on the inner wall of the side groove (27) through a slider (28), and the shielding plate (18) and the inner wall of the side groove (27) are both provided with lifting grooves corresponding to the slider (28), and each of the sliders (28) is connected to the side wall of the lifting groove through a third spring (26), and a sealing sleeve is fixedly arranged on the outer wall of each shielding plate (18), and the two shielding shells (1) are provided with a clamping mechanism corresponding thereto.

2. The electric shielding structure for the motor transformer elevation seat according to claim 1 is characterized in that: The fixing mechanism comprises two plug plates (19), the openings of the two shielding shells (1) are provided with slots (22) corresponding to the plug plates (19), the side walls of the two slots (22) are provided with receiving slots (25), each receiving slot (25) is provided with a card block (23) slidably arranged in the inside, a plurality of the card blocks (23) are connected to the inner wall of the receiving slot (25) via a second spring (24), the side wall of each card block (23) close to the slot (22) is inclined, the side walls of the two plug plates (19) are provided with a card slot corresponding to the card block (23), a lever (9) is fixedly arranged on the side wall of each card block (23), a plurality of the levers (9) are slidably arranged to penetrate the upper wall of the shielding shell (1), and the upper wall of the shielding shell (1) is provided with a plurality of strip-shaped sliding openings corresponding to the levers (9).

3. The electric shielding structure for the motor transformer elevation seat according to claim 1 is characterized in that: The covering and tightening mechanism comprises two tensioning plates (12), the two tensioning plates (12) are respectively slidably arranged on the side walls of a shielding shell (1) through sliding blocks (11), the side walls of the shielding shell (1) are provided with sliding grooves (10) corresponding to the sliding blocks (11), second threaded rods (13) are rotatably arranged in the two sliding grooves (10), the two second threaded rods (13) are respectively rotatably arranged to penetrate the two sliding blocks (11), the two sliding blocks (11) are provided with threaded through holes corresponding to the second threaded rods (13), one end of the two second threaded rods (13) are rotatably arranged to penetrate the side walls of the shielding shell (1) and are fixedly connected with second rotating handles (14), and the two tensioning plates (12) are provided with connection mechanisms corresponding to the shielding shell (1).

4. The electric shielding structure for the motor transformer elevation seat according to claim 3 is characterized in that: The connection mechanism comprises two clamping plates (15), and a telescopic groove (20) corresponding to the clamping plate (15) is provided on the side wall of the two tensioning plates (12) close to the shielding shell (1), and the two clamping plates (15) are respectively slidably arranged in the two telescopic grooves (20), and each of the clamping plates (15) is connected to the inner wall of the telescopic groove (20) through a first spring (21), and the side walls of the two clamping plates (15) away from the sliding block (11) are inclined, and clamping grooves corresponding to the clamping plates (15) are provided on both side walls of the shielding shell (1) away from the sliding block (11), and the two clamping plates (15) are provided with corresponding pulling mechanisms.

5. The electric shielding structure for the motor transformer elevation seat according to claim 4 is characterized in that: The pulling mechanism comprises two pull rods (16), the two pull rods (16) are respectively fixedly arranged on the side walls of one end of the two clamping plates (15) close to the first spring (21), and the two pull rods (16) are respectively slidably arranged to penetrate the side walls of the two tensioning plates (12), and the ends of the two pull rods (16) away from the clamping plates (15) are fixedly connected with pull handles (17).

6. The electric shielding structure for the motor transformer elevation seat according to claim 1 is characterized in that: The clamping mechanism comprises two clamping plates (7), the side walls of the two shielding shells (1) are fixedly provided with side plates (3), the two clamping plates (7) are slidably provided on the two side plates (3) through slide plates (5), the two side plates (3) are provided with sliding grooves (4) corresponding to the slide plates (5), the two sliding grooves (4) are rotatably provided with first threaded rods (6), the two first threaded rods (6) are rotatably passed through the two slide plates (5), the two slide plates (5) are provided with threaded through holes corresponding to the first threaded rods (6), and one end of the two first threaded rods (6) are rotatably passed through the side walls of the two side plates (3) and are fixedly connected with first rotating handles (8).

Images