A built-in basin insulator device

Abstract

The present application relates to a built-in pot-type insulator device, which belongs to the technical field of high-voltage power transmission and distribution, and includes a shell, a pot-type insulator enclosed in the shell, a particle catcher for collecting moving particles inside the shell, a conductor for ensuring current conduction, a contact seat and a foreign matter bin. Since the insulator is completely enclosed inside the shell, it effectively ensures that when the insulator is damaged due to an unexpected fault, the adverse factors can be controlled inside the shell, reducing the adverse effects on the outside. The particle catchers arranged on both sides of the insulator can capture tiny moving metal particles inside the space to prevent the tiny metal particles from affecting the insulation performance of the insulating part. A foreign matter bin is provided at the connection between the conductor and the contact seat, which can limit the foreign matter generated during the friction between the conductor and the contact seat in the foreign matter bin, and prevent the foreign matter generated by the friction from escaping to the surface of the insulating part to damage the insulation performance, effectively improving the safety and reliability of the pot-type insulator.

Description

Technical Field

[0001] The present application relates to the technical field of high voltage power transmission and distribution, and in particular to a built-in pot-type insulator device. Background Art

[0002] Basin insulators are important components in high-voltage electrical equipment. They play the role of insulation, isolation of gas chambers and support of conductors in high-voltage electrical equipment. Their performance directly affects the safe operation of high-voltage electrical equipment. Basin insulators are widely used in GIS (gas-insulated metal-enclosed switchgear) and GIL (rigid gas-insulated transmission lines).

[0003] In the prior art, metal debris may be generated at the connection portion between the central conductor contact seat and the conductor contact of the pot-type insulator due to friction caused by thermal expansion and contraction. The metal debris is easy to float inside the air chamber and move to the surface of the pot-type insulator under the action of the electric field force. In severe cases, it may penetrate the surface of the pot-type insulator, causing failure of the device containing the pot-type insulator. Summary of the invention

[0004] In order to reduce the failures of the built-in pot-type insulator device during use, the present application provides a built-in pot-type insulator device.

[0005] The present application provides an internal pot insulator device adopting the following technical solution:

[0006] A built-in pot insulator device comprises a first shell, a second shell and a pot insulator, wherein the pot insulator is arranged between the first shell and the second shell, a center conductor is coaxially arranged on the pot insulator, the center conductor passes through the pot insulator, a first conductor is arranged at one end of the center conductor, a contact seat and a second conductor are arranged at the other end of the center conductor, the contact seat is fixed to an end of the center conductor facing the second shell, a conducting counterbore for engaging the second conductor is arranged on the contact seat, a contact finger is arranged on the contact seat, one end of the contact finger is in contact with the inner wall of the conducting counterbore, and the other end of the contact finger is in contact with the second conductor;

[0007] A shielding cover is provided on the coaxial sleeve of the first conductor, and a foreign object bin is provided on the coaxial sleeve of the second conductor. The foreign object bin is arranged along the length direction of the second conductor, one end of the foreign object bin is in contact with the second conductor, and the other end of the foreign object bin is in contact with the outer wall of the contact seat, and the connection between the contact finger and the second conductor is located in the foreign object bin. A fixing part for limiting the slippage of the foreign object bin is provided on the second conductor.

[0008] By adopting the above technical scheme, the contact finger is used to keep the contact seat and the second conductor in a conductive state, the shielding cover is used to optimize the electric field at the connection part, effectively improving the surface electric field of the basin-type insulator, and the foreign matter bin is used to collect foreign matter generated by friction when the contact seat and the second conductor move along the axis, thereby effectively preventing foreign matter from moving in the air chamber formed by the first shell and the second shell, thereby achieving the effect of reducing the occurrence of basin-type insulator device during use.

[0009] Preferably, the fixing part includes a plurality of fixing pins slidably arranged on the second conductor, the fixing pins slide radially along the second conductor, a fixing hole for the fixing pins to slide is provided on the second conductor, a fixing ring groove for the fixing pins to engage is provided on the foreign object bin, the foreign object bin can be moved to the fixing hole to communicate with the fixing ring groove, and a fixing elastic part for pushing the fixing pins to slide outside the fixing hole is provided on the second conductor.

[0010] By adopting the above technical solution, when the foreign object bin slides to connect with the fixing hole and the fixing ring groove, the fixing pin can slide and embed into the fixing ring groove under the action of the fixing elastic part, so that the foreign object bin is not easy to move relative to the second conductor, thereby facilitating the fixation of the foreign object bin.

[0011] Preferably, a first flange is coaxially provided on one end of the first shell facing the second shell, a second flange is coaxially provided on one end of the second shell facing the first shell, a flange groove for engaging a pot-type insulator is provided on the first flange, a positioning groove is also provided on the first flange, a positioning protrusion cooperating with the positioning groove is provided on the pot-type insulator, and a limit assembly for limiting the axial displacement of the pot-type insulator is also provided on the first flange.

[0012] By adopting the above technical solution, the basin insulator is embedded in the flange groove, so that the basin insulator is completely sealed between the first shell and the second shell. Even if the basin insulator fails and ruptures in the extreme case later, it is not easy to cause the gas in the air chamber to leak out, which greatly improves the reliability of the power system; the positioning protrusion cooperates with the positioning groove to fix the basin insulator circumferentially, limit the displacement of the basin insulator in the circumferential direction, reduce the particles generated by the friction between the basin insulator and the conductor, and reduce the failure of the basin insulator device during use to a certain extent.

[0013] Preferably, a particle catcher is provided on both the first flange and the second flange, and the particle catcher includes a flange, and a capture groove for the flange to be engaged is provided on both the first flange and the second flange. The particle catcher is connected to the first flange or the second flange through a capture bolt, and the flange is provided with a capture countersunk hole for the screw head of the capture bolt to be engaged.

[0014] By adopting the above technical solution, the particle catcher is used to capture the moving particles inside the air chamber, thereby reducing the failure of the basin-type insulator device during use. The existing particle catcher is directly fixed or welded on the shell flange, occupying more shell space, and through the cooperation of the flange and the capture groove, the space can be saved to the maximum extent, thereby increasing the insulating gap of the gas, and the capture bolt used to fix the particle catcher is hidden in the particle catcher, and the capture bolt will not affect the electric field.

[0015] Preferably, the limiting assembly comprises a plurality of limiting blocks, the first flange and the pot-type insulator are provided with limiting holes for the limiting blocks to be engaged, and the limiting blocks are connected to the first flange via limiting bolts.

[0016] By adopting the above technical solution, the pot-type insulator is not prone to axial movement, which further reduces the failure of the pot-type insulator device during use.

[0017] Preferably, the limit assembly includes a plurality of control blocks, the first flange and the pot-type insulator are provided with control holes for the control blocks to be engaged, the control block is provided with a first slider and a second slider, the control block is provided with a first slide groove for the first slider to slide, the control block is provided with a second slide groove for the second slider to slide, the first flange is provided with a first locking hole for the first slider to slide and then be embedded, the pot-type insulator is provided with a second locking hole for the second slider to slide and then be embedded, and the control block is provided with a sliding member for driving the first slider and the second slider to slide;

[0018] A control gear is rotatably connected inside the control block, the first slider and the second slider are symmetrically arranged on both sides of the radial direction of the control gear, and the first slider and the second slider are both provided with control racks meshing with the control gear.

[0019] By adopting the above technical solution, the first slider cooperates with the first locking hole, and the second slider cooperates with the second locking hole, so that the pot-type insulator can be fixed to the first flange, which limits the axial sliding of the pot-type insulator and improves the reliability of fixing the pot-type insulator on the first flange; by setting the control gear and the control rack, the first slider and the second slider can slide synchronously toward or away from each other, which is convenient for controlling the sliding of the first slider and the second slider.

[0020] Preferably, the sliding member includes a control rod slidably arranged in the control block, the control block is provided with a control slide groove for the control rod to slide, the control slide groove is connected with the first slide groove, and the first slider is provided with a control bevel groove cooperating with the control rod, when the control rod slides to the end of the control bevel groove away from the control gear, the first slider is received in the first slide groove, and when the control rod slides to the end of the control bevel groove close to the control gear, part of the first slider slides out of the first slide groove.

[0021] By adopting the above technical solution, the locking and unlocking between the pot-type insulator and the first flange can be controlled by sliding the control rod, the stroke is fixed and the operation is simple, which facilitates the fixing of the pot-type insulator and the first flange.

[0022] Preferably, the control block is also slidably connected to a mating block, the second flange is provided with a mating ring groove that cooperates with the mating block, the mating block slides along the direction of the axis of the control gear, the control block is provided with a mating hole for accommodating the mating block, and the control block is provided with a mating elastic member for pushing the mating block to slide out of the mating hole.

[0023] By adopting the above technical solution, through the cooperation between the matching block and the matching hole, the second flange is not easy to have circumferential displacement relative to the first flange, which not only improves the reliability of the fixation of the first flange and the second flange, but also makes the air chamber less likely to leak, thereby extending the service life of the device; due to the possible errors of components in the actual production process, the matching block is set to be slidable, so that the matching block can fit with the matching ring groove under the action of the matching elastic member.

[0024] Preferably, a limiting slide groove is provided on the side wall of the mating block, and a mating rod is provided on the control rod. The mating rod extends to the limiting slide groove at one end away from the control rod and is slidably arranged in the limiting slide groove. The limiting slide groove includes a limiting area and a sliding area. When the mating rod is located in the limiting area, the mating block is received in the mating hole. When the mating rod is located in the sliding area, the mating block can slide out of the mating hole under the action of the mating elastic part.

[0025] By adopting the above technical solution, when the matching rod is located in the limit zone, the matching rod cooperates with the limit zone to lock the sliding of the matching block; when the matching rod is located in the sliding zone, the matching block can slide out of the matching hole under the action of the matching spring, thereby releasing the locking of the matching block sliding by the matching rod, but at this time, under the cooperation of the matching rod and the sliding zone, the sliding of the control rod is locked, thereby improving the reliability of fixing the pot-type insulator and the first flange through the control block.

[0026] Preferably, the mating block is connected to a sliding block, the sliding block is hollow, the control gear is rotatably arranged in the sliding block, the control block is provided with a sliding groove for the sliding block to slide, the sliding groove is connected with the first sliding groove, the second sliding groove and the mating hole, the end wall of the sliding block close to the first slider is provided with a first giving way groove for the first slider to slide, the end wall of the sliding block away from the first slider is provided with a first locking groove for the first slider to engage, and the first slider cooperates with the first locking groove to limit the sliding of the mating block.

[0027] By adopting the above technical solution, when the control rod slides to the end of the control bevel away from the control gear, the first slider is completely received in the first slide groove, and the end of the first slider away from the control bevel passes through the first give way groove and is embedded in the first locking groove, further locking the sliding of the matching block, thereby improving the reliability of locking the sliding of the matching block when the first slider is received in the first slide groove. At this time, all the components in the control block are received in the control block, reducing the loss of the control block during transportation; when the control rod slides to the end of the control bevel close to the control gear, part of the first slider slides out of the first slide groove, and the end of the first slider away from the control bevel is separated from the first locking groove, thereby releasing the lock on the sliding of the matching block, and through the setting of the first give way groove, the existence of the first slider is not easy to affect the sliding of the matching block.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. A shielding cover and a foreign matter bin are provided in the shell. The shielding cover is used to optimize the electric field at the connection part and protect the internal circuit, which effectively improves the surface electric field of the basin insulator. The foreign matter bin is used to collect foreign matter generated by friction when the contact seat and the second conductor move along the axis, thereby effectively preventing foreign matter from moving in the air chamber formed by the first shell and the second shell, thereby achieving the effect of reducing the occurrence of failures of the basin insulator device during use;

[0030] 2. The design of embedding the pot-type insulator in the flange groove makes the pot-type insulator completely enclosed between the first shell and the second shell. Even if the pot-type insulator fails and ruptures in the future, it is not easy to cause the gas in the gas chamber to leak out, which greatly improves the reliability of the power system;

[0031] 3. The particle catcher is used to capture the moving particles inside the gas chamber, reducing the failure of the basin-type insulator device during use. The existing particle catcher is directly fixed or welded on the shell flange, occupying more shell space. The combination of the flange and the capture groove can maximize space saving, thereby increasing the insulating gap of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a schematic diagram of the overall structure of Example 1 of the present application.

[0033] Figure 2 It is a schematic diagram of the foreign matter bin fixing structure of Example 1 of the present application.

[0034] Figure 3 This is a schematic diagram of the installation of the particle collector of Example 1 of the present application.

[0035] Figure 4 It is a schematic diagram of the first flange structure of Example 1 of the present application.

[0036] Figure 5 It is a schematic diagram of the fixing structure of the pot-type insulator and the first flange of the second embodiment of the present application.

[0037] Figure 6 It is a structural schematic diagram of the first sliding block in the second embodiment of the present application, in which the first sliding block is partially located outside the control block.

[0038] Figure 7 It is a structural schematic diagram of the first sliding block housed in the control block in the second embodiment of the present application.

[0039] Figure 8 This is a top sectional view of the control block of an embodiment of the present application.

[0040] Fig. 9 It is a schematic diagram of the structure of the embodiment of the present application in which the matching rod is located in the sliding zone.

[0041] Fig.10 It is a schematic diagram of the structure of the embodiment of the present application in which the matching rod is located in the limiting area.

[0042] Fig.11 It is a schematic diagram of the block structure of the embodiment of the present application.

[0043] Explanation of the reference numerals: 1. first housing; 11. first flange; 111. flange groove; 112. positioning groove; 113. limit block; 114. first locking hole; 2. second housing; 21. second flange; 211. matching ring groove; 3. basin insulator; 31. limit hole; 311. limit bolt; 32. sealing ring; 33. control hole; 34. second locking hole; 4. center conductor; 41. first conductor; 411. shielding cover; 42. contact seat; 421. contact finger; 43. second conductor; 431. fixing pin; 432. fixing hole; 433. fixing spring; 44. foreign body bin; 441. fixing ring groove; 5. particle capture device; 51, flange; 52, capture groove; 53, capture countersunk hole; 54, capture bolt; 6, control block; 61, first slider; 611, first slide groove; 612, control inclined groove; 62, second slider; 621, second slide groove; 63, control gear; 64, control rack; 65, control rod; 651, control slide groove; 652, matching rod; 66, matching block; 661, matching hole; 662, matching spring; 663, limit slide groove; 664, limit area; 665, sliding area; 7, sliding block; 71, sliding groove; 72, first give way groove; 73, first locking groove; 74, second give way groove; 75, second locking groove. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-11 This application is described in further detail.

[0045] Embodiment 1: This embodiment of the present application discloses a built-in pot insulator device, referring to Figure 1 , including a first shell 1, a second shell 2 and a pot insulator 3, the pot insulator 3 is arranged between the first shell 1 and the second shell 2, a center conductor 4 is coaxially arranged on the pot insulator 3, the center conductor 4 passes through the pot insulator 3, one end of the center conductor 4 is fixedly provided with a first conductor 41, the other end of the center conductor 4 is provided with a contact seat 42 and a second conductor 43, the contact seat 42 is fixed to the end of the center conductor 4 facing the second shell 2, the end of the contact seat 42 away from the center conductor 4 is provided with a conductive countersunk hole for the second conductor 43 to be embedded, in addition, a contact finger 421 is also provided on the contact seat 42, one end of the contact finger 421 is in contact with the inner wall of the conductive countersunk hole, and the other end of the contact finger 421 is in contact with the second conductor 43, and the contact seat 42 and the second conductor 43 can be kept in a conductive state by the arrangement of the contact finger 421.

[0046] Reference Figure 1The coaxial sleeve on the first conductor 41 is provided with a shielding cover 411, which is used to optimize the electric field at the connection part, and effectively improves the surface electric field of the basin-type insulator 3; the coaxial sleeve on the second conductor 43 is provided with a foreign body bin 44, which is arranged along the length direction of the second conductor 43, one end of the foreign body bin 44 is fixed to the second conductor 43, and the other end of the foreign body bin 44 is in contact with the outer wall of the contact seat 42, so that the connection between the contact finger 421 and the second conductor 43 can be located in the foreign body bin 44, and the foreign body bin 44 is used to collect foreign matter generated by friction when the contact seat 42 and the second conductor 43 move along the axis, thereby effectively preventing foreign matter from moving in the air chamber formed by the first shell 1 and the second shell 2, so as to reduce the failure of the basin-type insulator 3 during use. The air chamber is filled with insulating gas, and the insulating gas includes but is not limited to SF6, N2, CO2 and other gases that have been proven to have insulating properties.

[0047] Reference Figure 1 and Figure 2 The second conductor 43 is provided with a fixing member for limiting the sliding of the foreign body bin 44, and the fixing member includes a plurality of fixing pins 431 slidably arranged on the second conductor 43. In the embodiment of the present application, there are three fixing pins 431, and the three fixing pins 431 are arranged in a circular array with the axis of the second conductor 43 as the center. The fixing pins 431 slide along the radial direction of the second conductor 43, and the second conductor 43 is provided with a fixing hole 432 for the fixing pin 431 to slide. The foreign body bin 44 is coaxially provided with a fixing ring groove 441 for the fixing pin 431 to fit. The second conductor 43 is provided with a fixing hole 432 for the fixing pin 431 to slide. A fixed elastic member pushes the fixed pin 431 to slide toward the outside of the fixed hole 432. In the embodiment of the present application, the fixed elastic member is selected from a fixed spring 433. One end of the fixed spring 433 is fixed to the inner wall of the fixed hole 432, and the other end of the fixed spring 433 is fixed to the fixed pin 431. When the foreign matter bin 44 slides to the fixed hole 432 and is connected to the fixed ring groove 441, the fixed pin 431 can slide under the action of the fixed spring 433 and be embedded in the fixed ring groove 441, so that the foreign matter bin 44 is not easy to move relative to the second conductor 43, which facilitates the fixation of the foreign matter bin 44.

[0048] In the actual production process, a guide ring can be set in the foreign object bin 44 so that the outer wall of the foreign object bin 44 arches in the direction away from the second conductor 43, thereby reducing the metal particles generated by the friction between the contact seat 42 and the foreign object bin 44, and effectively ensuring the insulation performance of the pot insulator 3.

[0049] Reference Figure 1 and Figure 3A first flange 11 is coaxially fixedly arranged at one end of the first shell 1 facing the second shell 2, and a second flange 21 is coaxially fixedly arranged at one end of the second shell 2 facing the first shell 1. A flange groove 111 for engaging the pot-type insulator 3 is provided on the first flange 11, so that the pot-type insulator 3 is completely sealed between the first shell 1 and the second shell 2. Even in the extreme case that the pot-type insulator 3 fails and ruptures later, it is not easy to cause the gas in the gas chamber to leak, thereby greatly improving the reliability of the power system.

[0050] Reference Figure 4 A positioning groove 112 is also provided on the first flange 11, and a positioning protrusion cooperating with the positioning groove 112 is provided on the pot-type insulator 3. When the pot-type insulator 3 is installed in the flange groove 111, the positioning protrusion is embedded in the positioning groove 112. The positioning protrusion cooperates with the positioning groove 112 to fix the pot-type insulator 3 circumferentially, limit the displacement of the pot-type insulator 3 in the circumferential direction, reduce the particles generated by the friction between the pot-type insulator 3 and the conductor, and reduce the failure of the pot-type insulator 3 during use to a certain extent.

[0051] Reference Figure 4 The first flange 11 is also provided with a limit assembly for limiting the axial displacement of the pot-type insulator 3. In the embodiment of the present application, the limit assembly includes five limit blocks 113. The five limit blocks 113 and the positioning groove 112 are arranged in a circumferential array with the axis of the first flange 11 as the center. The first flange 11 and the pot-type insulator 3 are provided with limit holes 31 for the limit blocks 113 to fit. The limit blocks 113 are fixed to the first flange 11 by limit bolts 311, so that the pot-type insulator 3 is not easy to move axially, further reducing the failure of the pot-type insulator 3 during use. Compared with the prior art, the pot-type insulator 3 does not need to be fixed with a special baffle, which effectively reduces the size of the pot-type insulator 3 and the housing flange and reduces the manufacturing cost.

[0052] Reference Figure 3 The first flange 11 and the second flange 21 are both provided with a particle catcher 5, and the particle catcher 5 is used to catch moving particles inside the air chamber, thereby reducing the failure of the basin-type insulator 3 device during use; the particle catcher 5 includes a flange 51, and the first flange 11 and the second flange 21 are both provided with a catching groove 52 for the flange 51 to be engaged, and the particle catcher 5 is connected to the first flange 11 or the second flange 21 through a catching bolt 54. The existing particle catcher 5 is directly fixed or welded on the housing flange, occupying more housing space, and through the cooperation of the flange 51 and the catching groove 52, it is possible to maximize space saving, thereby increasing the insulating gap of the gas.

[0053] Reference Figure 3The particle catcher 5 is connected to the first flange 11 or the second flange 21 through a capture bolt 54. A capture countersunk hole 53 for the screw head of the capture bolt 54 to be engaged is provided on the flange 51. Through the setting of the capture countersunk hole 53, the capture bolt 54 is hidden in the particle catcher 5, and the capture bolt 54 will not affect the electric field.

[0054] Reference Figure 3 A sealing ring 32 is embedded between the pot-type insulator 3 and the first flange 11 and the second flange 21. Through the setting of the sealing ring 32, if the pot-type insulator 3 fails, the gas in the gas chamber will not leak to the outside of the shell.

[0055] Embodiment 2: The difference from Embodiment 1 is that, referring to Figure 5 The limiting assembly includes a plurality of control blocks 6. The control blocks 6 in the embodiment of the present application are consistent in shape and size with the limiting blocks 113 in the first embodiment, and their installation positions are also consistent. The first flange 11 and the pot insulator 3 are provided with control holes 33 for the control blocks 6 to be engaged. The control block 6 is provided with a first slider 61 and a second slider 62. The control block 6 is provided with a first slide groove 611 for the first slider 61 to slide. The control block 6 is provided with a second slide groove 621 for the second slider 62 to slide. The first flange 11 is provided with a first locking hole 114 for the first slider 61 to slide and then be embedded. The pot insulator 3 is provided with a second locking hole 34 for the second slider 62 to slide and then be embedded. The first slider 61 cooperates with the first locking hole 114, and the second slider 62 cooperates with the second locking hole 34, so that the pot insulator 3 can be fixed to the first flange 11, and while limiting the axial sliding of the pot insulator 3, the reliability of the pot insulator 3 being fixed to the first flange 11 is improved.

[0056] Reference Figure 6 , Figure 7 and Figure 8 A control gear 63 is rotatably connected inside the control block 6, and the first slider 61 and the second slider 62 are symmetrically arranged on both sides of the radial direction of the control gear 63. The first slider 61 and the second slider 62 are both provided with a control rack 64 that meshes with the control gear 63. Through the arrangement of the control gear 63 and the control rack 64, the first slider 61 and the second slider 62 can slide synchronously toward or away from each other, which is convenient for controlling the sliding of the first slider 61 and the second slider 62.

[0057] Reference Figure 6 , Figure 7 and Fig. 9The control block 6 is provided with a sliding member for driving the first slider 61 and the second slider 62 to slide. The sliding member includes a control rod 65 slidably arranged in the control block 6. The control rod 65 is located above the first slider 61 in the vertical direction. The control block 6 is provided with a control slide 651 for the control rod 65 to slide. The control rod 65 slides along the length direction of the control slide 651, so that the control slide 651 is connected with the first slide 611, and the end surface of the first slider 61 is provided with a control rod 65 that cooperates with the control rod 65. The control bevel groove 612, the end of the control rod 65 close to the first slider 61 extends into the control bevel groove 612, when the control rod 65 slides to the end of the control bevel groove 612 away from the control gear 63, the first slider 61 is received in the first slide groove 611, when the control rod 65 slides to the end of the control bevel groove 612 close to the control gear 63, the first slider 61 slides out of the first slide groove 611, and the locking and unlocking between the pot insulator 3 and the first flange 11 can be controlled by sliding the control rod 65.

[0058] In actual application, a friction-increasing rib made of rubber can be provided at one end of the control rod 65 away from the first slider 61. The friction-increasing rib has a certain deformation ability. When the first flange 11 and the second flange 21 are fixed, the end of the friction-increasing rib away from the control rod 65 fits with the second flange 21. The friction-increasing rib can facilitate the operator to control the sliding of the control rod 65 on the one hand, and increase the friction between the second flange 21 and the control rod 65 on the other hand, so that the control rod 65 is not easy to slide relative to the pot insulator 3 when the first flange 11 and the second flange 21 are fixed, thereby improving the reliability of fixing the pot insulator 3 to the first flange 11 through the control block 6.

[0059] Reference Figure 5 and Figure 6 , the control block 6 is also slidably connected with a matching block 66, and the matching block 66 slides along the direction of the axis of the control gear 63. The second flange 21 is provided with a matching annular groove 211 that matches with the matching block 66, and the control block 6 is provided with a matching hole 661 for accommodating the matching block 66. The control block 6 is provided with a matching elastic member for pushing the matching block 66 to slide toward the outside of the matching hole 661. In the embodiment of the present application, the matching elastic member is selected from a matching spring 662, one end of the matching spring 662 is fixed to the inner wall of the matching hole 661, and the other end of the matching spring 662 is fixed to the matching block 66. Through the matching of the matching block 66 and the matching hole 661, the second flange 21 is not easy to have a circumferential displacement relative to the first flange 11, which not only improves the reliability of the fixing of the first flange 11 and the second flange 21, but also makes the air chamber not easy to leak, thereby extending the service life of the device; due to the possible errors of the components in the actual production process, the matching block 66 is set to be slidable, so that the matching block 66 can fit with the matching annular groove 211 under the action of the matching spring 662.

[0060] Reference Fig. 9 and Fig.11 , a limiting slide groove 663 is provided on the end surface of the matching block 66 facing the control rod 65, and a matching rod 652 is fixed on the control block 6, and one end of the matching rod 652 away from the control rod 65 extends to the limiting slide groove 663 and is slidably set in the limiting slide groove 663, and the limiting slide groove 663 includes a limiting area 664 and a sliding area 665. When the matching rod 652 is located in the limiting area 664, the matching block 66 is received in the matching hole 661, and the matching rod 652 cooperates with the limiting area 664 to lock the sliding of the matching block 66; when the matching rod 652 is located in the sliding area 665, the matching block 66 can slide out of the matching hole 661 under the action of the matching spring 662, thereby releasing the locking of the matching rod 652 on the sliding of the matching block 66, but at this time, under the cooperation of the matching rod 652 and the sliding area 665, the reliability of fixing the pot insulator 3 and the first flange 11 through the control block 6 is improved.

[0061] Reference Figure 6 , Figure 7 and Fig.11 A hollow sliding block 7 is fixedly arranged on the matching block 66, and the control gear 63 is rotatably arranged in the sliding block 7. A sliding groove 71 for sliding the sliding block 7 is opened on the control block 6, and the sliding groove 71 is communicated with the first sliding groove 611, the second sliding groove 621 and the matching hole 661. A first giving way groove 72 for sliding the first sliding block 61 is provided on the end wall of the sliding block 7 close to the first sliding block 61, and a second locking groove 75 for engaging the second sliding block 62 is provided on the end wall of the sliding block 7 close to the first sliding block 61. A first locking groove 73 for engaging the first sliding block 61 is provided on the end wall of the sliding block 7 away from the first sliding block 61, and a second giving way groove 74 for sliding the second sliding block 62 is provided on the end wall of the sliding block 7 away from the first sliding block 61.

[0062] When the control rod 65 slides to the end of the control bevel 612 away from the control gear 63, the first slider 61 is completely received in the first slide groove 611, and the end of the first slider 61 away from the control bevel 612 passes through the first give way groove 72 and is embedded in the first locking groove 73, further locking the sliding of the matching block 66. At this time, the matching rod 652 is located in the limit area 664, and the components in the control block 6 are all received in the control block 6, reducing the loss of the control block 6 during transportation; when the control rod 65 slides to the end of the control bevel 612 close to the control gear 63, part of the first slider 61 slides out of the first slide groove 611, and the first slider 61 is away from the control bevel One end of the groove 612 is separated from the first locking groove 73. At this time, the matching rod 652 is located in the sliding area 665. The matching block 66 can slide to the outside of the matching hole 661 under the action of the matching spring 662. Under the cooperation of the matching rod 652 and the sliding area 665, the sliding of the control rod 65 is locked. Only when the matching block 66 slides to be completely received in the matching hole 661, can the fixing between the pot insulator 3 and the first flange 11 be contacted by the sliding of the control rod 65, thereby improving the reliability of fixing the pot insulator 3 and the first flange 11 by the control block 6. Since the sliding structure of the second slider 62 is the same as that of the first slider 61, it is not repeated here.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A built-in pot insulator device, characterized in that: The invention comprises a first shell (1), a second shell (2) and a pot-type insulator (3), wherein the pot-type insulator (3) is arranged between the first shell (1) and the second shell (2), a center conductor (4) is coaxially arranged on the pot-type insulator (3), the center conductor (4) passes through the pot-type insulator (3), one end of the center conductor (4) is provided with a first conductor (41), the other end of the center conductor (4) is provided with a contact seat (42) and a second conductor (43), the contact seat (42) is fixed to one end of the center conductor (4) facing the second shell (2), the contact seat (42) is provided with a conduction counterbore for the second conductor (43) to be engaged, the contact seat (42) is provided with a contact finger (421), one end of the contact finger (421) is in contact with the inner wall of the conduction counterbore, and the other end of the contact finger (421) is in contact with the second conductor (43); A shielding cover (411) is coaxially sleeved on the first conductor (41), a foreign matter bin (44) is coaxially sleeved on the second conductor (43), the foreign matter bin (44) is arranged along the length direction of the second conductor (43), one end of the foreign matter bin (44) is in contact with the second conductor (43), the other end of the foreign matter bin (44) is in contact with the outer wall of the contact seat (42), the connection between the contact finger (421) and the second conductor (43) is located in the foreign matter bin (44), and a fixing member for limiting the slippage of the foreign matter bin (44) is provided on the second conductor (43); The fixing member comprises a plurality of fixing pins (431) slidably arranged on the second conductor (43), the fixing pins (431) slide along the radial direction of the second conductor (43), the second conductor (43) is provided with a fixing hole (432) for the fixing pins (431) to slide, the foreign matter bin (44) is provided with a fixing ring groove (441) for the fixing pins (431) to engage, the foreign matter bin (44) can move to the fixing hole (432) to communicate with the fixing ring groove (441), and the second conductor (43) is provided with a fixing elastic member for pushing the fixing pins (431) to slide toward the outside of the fixing hole (432); A first flange (11) is coaxially provided at one end of the first shell (1) facing the second shell (2), a second flange (21) is coaxially provided at one end of the second shell (2) facing the first shell (1), a flange groove (111) for engaging the pot-type insulator (3) is provided on the first flange (11), a positioning groove (112) is also provided on the first flange (11), a positioning protrusion matching the positioning groove (112) is provided on the pot-type insulator (3), and a limit assembly for limiting the axial displacement of the pot-type insulator (3) is also provided on the first flange (11); The limit assembly comprises a plurality of control blocks (6); the first flange (11) and the pot-type insulator (3) are provided with control holes (33) for the control blocks (6) to be engaged; the control block (6) is provided with a first slider (61) and a second slider (62); the control block (6) is provided with a first slide groove (611) for the first slider (61) to slide; the control block (6) is provided with a second slide groove (621) for the second slider (62) to slide; the first flange (11) is provided with a first locking hole (114) for the first slider (61) to slide and then be embedded; the pot-type insulator (3) is provided with a second locking hole (34) for the second slider (62) to slide and then be embedded; the control block (6) is provided with a sliding member for driving the first slider (61) and the second slider (62) to slide; A control gear (63) is rotatably connected inside the control block (6); the first slider (61) and the second slider (62) are symmetrically arranged on both sides of the control gear (63) in a radial direction; and the first slider (61) and the second slider (62) are both provided with a control rack (64) meshing with the control gear (63); The sliding member comprises a control rod (65) slidably arranged in the control block (6); a control slide groove (651) for sliding the control rod (65) is provided on the control block (6); the control slide groove (651) is communicated with the first slide groove (611); a control inclined groove (612) matched with the control rod (65) is provided on the first slider (61); when the control rod (65) slides to the end of the control inclined groove (612) away from the control gear (63), the first slider (61) is received in the first slide groove (611); when the control rod (65) slides to the end of the control inclined groove (612) close to the control gear (63), part of the first slider (61) slides out of the first slide groove (611).

2. The internal pot insulator device according to claim 1, characterized in that: The first flange (11) and the second flange (21) are both provided with a particle catcher (5), the particle catcher (5) comprising a flange (51), the first flange (11) and the second flange (21) are both provided with a capture groove (52) for the flange (51) to engage with, the particle catcher (5) is connected to the first flange (11) or the second flange (21) via a capture bolt (54), the flange (51) is provided with a capture countersunk hole (53) for the screw head of the capture bolt (54) to engage with.

3. The internal pot insulator device according to claim 1, characterized in that: The control block (6) is also slidably connected to a matching block (66); the second flange (21) is provided with a matching annular groove (211) matching with the matching block (66); the matching block (66) slides along the axis of the control gear (63); the control block (6) is provided with a matching hole (661) for accommodating the matching block (66); and the control block (6) is provided with a matching elastic member for pushing the matching block (66) to slide out of the matching hole (661).

4. The internal pot insulator device according to claim 3, characterized in that: A limiting slide groove (663) is provided on the side wall of the matching block (66), and a matching rod (652) is provided on the control rod (65). The matching rod (652) extends to the limiting slide groove (663) at one end away from the control rod (65) and is slidably arranged in the limiting slide groove (663). The limiting slide groove (663) includes a limiting area (664) and a sliding area (665). When the matching rod (652) is located in the limiting area (664), the matching block (66) is received in the matching hole (661). When the matching rod (652) is located in the sliding area (665), the matching block (66) can slide out of the matching hole (661) under the action of the matching elastic member.

5. The internal pot insulator device according to claim 4, characterized in that: The matching block (66) is connected to a sliding block (7), the sliding block (7) is hollow, the control gear (63) is rotatably arranged in the sliding block (7), the control block (6) is provided with a sliding groove (71) for the sliding block (7) to slide, the sliding groove (71) is connected with the first sliding groove (611), the second sliding groove (621) and the matching hole (661), the end wall of the sliding block (7) close to the first sliding block (61) is provided with a first giving way groove (72) for the first sliding block (61) to slide, the end wall of the sliding block (7) away from the first sliding block (61) is provided with a first locking groove (73) for the first sliding block (61) to engage, the first sliding block (61) cooperates with the first locking groove (73) to limit the sliding of the matching block (66).

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