An oil-immersed filter reactor convenient to maintain

Abstract

The utility model belongs to the field of electric reactor, specifically say a kind of oil-immersed filter reactor of being convenient for maintenance, including electric reactor shell, the top of electric reactor shell is fixedly connected with oil pillow, the front side of oil pillow is fixedly connected with breathing pipe, and the bottom of breathing pipe is provided with breather;Breather's top and the bottom between breathing pipe are provided with connecting mechanism;The connecting mechanism includes connecting sleeve, and the outside of breather top is fixedly connected in connecting sleeve, the bottom of breathing pipe outside is fixedly connected with connecting block, and connecting block is inserted in the inside of connecting groove, and connecting groove is opened on the inner wall of connecting sleeve, and connecting block is engaged with fixed block, and fixed block is arranged in the inside of fixed cavity, and fixed cavity is opened in the inside of connecting groove inner wall;Through the structural design of connecting mechanism, the function of being convenient for the maintenance of oil-immersed filter reactor is realized by the structure design of connecting mechanism, to facilitate the dismounting installation of breather.

Description

Technical Field

[0001] This invention relates to the field of reactors, specifically an oil-immersed filter reactor that is easy to maintain. Background Technology

[0002] There are numerous harmonic sources in power grid systems, such as rectifiers, converters, and frequency converters. The high-order harmonics generated by these devices can seriously endanger the safe operation of the main transformer and other electrical equipment in the system. Filtering reactors are widely used in high and low voltage filter cabinets, connected in series with filtering capacitors. By tuning to a certain resonant frequency, they are used to absorb harmonic currents of the corresponding frequency in the power grid. After the filtering reactor is connected in series with the capacitor, it can not only effectively absorb the harmonics of the power grid, but also improve the power factor of the system, which plays a significant role in the safe operation of the system.

[0003] During long-term operation, filter reactors generate significant heat. To dissipate this heat into the air, oil cooling is typically employed. This involves placing insulating oil inside the filter reactor's casing and cooling the reactor body through heat exchange. This prevents the reactor body from melting due to overheating and ensures stable operation. To prevent excessively high or low internal pressure caused by temperature variations in the oil inside the filter reactor, oil-cooled filter reactors utilize a breather to absorb or expel moisture from the surrounding environment.

[0004] The breather used in existing oil-immersed filter reactors becomes less efficient at absorbing moisture from the air after prolonged use, requiring replacement to prevent excessive moisture content in the insulating oil inside the reactor, which could lead to a decline in insulation performance. Currently, the breather is mostly connected to the oil-immersed filter reactor using bolts, requiring wrenches or other tools for installation and disassembly. This is inefficient when replacing breathers for multiple oil-immersed filter reactors. Therefore, to address these issues, a more easily maintainable oil-immersed filter reactor is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the efficiency of breathers used in existing oil-immersed filter reactors in absorbing moisture from the air decreases after prolonged use, necessitating replacement of the breather to prevent excessive moisture content in the insulating oil inside the reactor, which could lead to a decline in insulation performance. Currently, the connection between the breather and the oil-immersed filter reactor is mostly achieved through bolt tightening, requiring the use of wrenches or other tools for installation and disassembly. This results in low efficiency when replacing breathers for multiple oil-immersed filter reactors. Therefore, this invention proposes an oil-immersed filter reactor that is easier to maintain.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an oil-immersed filter reactor that is easy to maintain, including a reactor housing, an oil tank fixedly connected to the top of the reactor housing, a breathing tube fixedly connected to the front side of the oil tank, a breather provided at the bottom of the breathing tube, and a connecting mechanism provided between the top of the breather and the bottom of the breathing tube.

[0007] The connecting mechanism includes a connecting sleeve, which is fixedly connected to the outer side of the top of the respirator. A connecting block is fixedly connected to the bottom end of the outer side of the breathing tube. The connecting block is inserted into the inside of the connecting groove, which is opened on the inner wall of the connecting sleeve. The connecting block engages with a fixing block, which is located inside a fixing cavity, which is opened on the inner side of the inner wall of the connecting groove. An auxiliary spring is provided between the fixing block and the inner wall of the fixing cavity at the position of the fixing block away from the connecting groove and near the top. A movement control component is provided at the bottom end of the fixing block.

[0008] Preferably, the fixing block is sleeved on the outside of the guide rod, and the guide rod is fixedly connected to the inner wall of the fixing cavity near the center.

[0009] Preferably, the auxiliary spring is fixedly connected to the fixed block on the side closer to the fixed block, and the auxiliary spring is fixedly connected to the inner wall of the fixed cavity on the side farther away from the fixed block.

[0010] Preferably, a slider is fixedly connected to the top of the fixing block, and the slider is slidably connected inside the groove, which is opened at the top of the inner wall of the fixing cavity.

[0011] Preferably, the motion control component includes a threaded sleeve, which is fixedly connected to the bottom end of the fixed block near the connecting block, and the threaded sleeve is threadedly connected to a lead screw. One side of the lead screw is rotatably connected to the inner wall of the fixed cavity, and the other side of the lead screw is rotatably connected to the inner wall of the transmission cavity. The lead screw passes through the bottom end of the fixed block. The transmission cavity is opened at the bottom end of the fixed cavity near the connecting block and is connected to the fixed cavity. A driven gear is fixedly connected to the side of the lead screw away from the fixed block. The bottom end of the driven gear meshes with a driving gear. A connecting shaft is fixedly connected to one side of the driving gear. The connecting shaft passes through the connecting sleeve and extends to the outside of the connecting sleeve on the side away from the driving gear.

[0012] Preferably, a knob is fixedly connected to the side of the connecting shaft away from the drive gear, and an anti-slip sleeve is glued to the outside of the knob. The anti-slip sleeve is made of rubber and has anti-slip texture on the outside.

[0013] Preferably, a threaded sleeve is fitted on the outer side of the connecting shaft, and the threaded sleeve is fixedly connected to the connecting sleeve on the side near the outer wall of the connecting sleeve, and a nut is threadedly connected to the outer side of the threaded sleeve.

[0014] Preferably, a locking block is glued to the inner wall of the connecting groove. The locking block is made of rubber and engages with the locking groove. The locking groove is located on the side of the connecting block away from the breathing tube. A sealing ring is fixedly connected to the top of the respirator. The sealing ring is made of silicone and engages with the fitting groove, which is located at the bottom of the breathing tube.

[0015] The advantages of this invention are:

[0016] 1. This invention, through the structural design of the connecting mechanism, facilitates the disassembly and installation of the respirator for maintenance of the oil-immersed filter reactor. It solves the problem that existing respirators for oil-immersed filter reactors experience a decrease in the efficiency of absorbing moisture from the air after prolonged use, necessitating respirator replacement. This also prevents the insulation performance from deteriorating due to excessive moisture content in the insulating oil inside the reactor. Currently, most respirators are connected to the oil-immersed filter reactor using bolts, requiring wrenches or other tools for installation and disassembly. This results in low efficiency when replacing respirators for multiple oil-immersed filter reactors, thus improving the efficiency of oil-immersed filter reactor maintenance.

[0017] 2. The present invention achieves the function of enhancing the sealing performance of the connection between the breathing tube and the respirator through the structural design of the combination of sealing ring and fitting groove. It solves the problem that when using connection methods other than bolts, the connection between the breathing tube and the respirator may be not tight enough, resulting in a decrease in sealing performance. This would allow air with high moisture content to enter the interior of the reactor shell directly without passing through the filter adsorption of the respirator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a partial side view perspective sectional view of the present invention.

[0022] Figure 4For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0024] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point C;

[0025] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point D.

[0026] In the diagram: 1. Reactor housing; 2. Oil tank; 3. Breathing tube; 4. Breather; 51. Connecting sleeve; 52. Connecting block; 53. Connecting groove; 55. Fixing block; 56. Fixing cavity; 57. Guide rod; 58. Auxiliary spring; 59. Slider; 61. Slide groove; 62. Threaded sleeve; 63. Lead screw; 64. Driven gear; 65. Driven gear; 66. Transmission cavity; 67. Connecting shaft; 68. Knob; 69. Anti-slip sleeve; 71. Threaded sleeve; 72. Nut; 73. Clamping block; 74. Clamping groove; 75. Sealing ring; 76. Fitting groove. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see Figures 1-7 As shown, an easy-to-maintain oil-immersed filter reactor includes a reactor housing 1, an oil tank 2 fixedly connected to the top of the reactor housing 1, a breathing tube 3 fixedly connected to the front side of the oil tank 2, a respirator 4 provided at the bottom of the breathing tube 3, and a connecting mechanism provided between the top of the respirator 4 and the bottom of the breathing tube 3.

[0030] The connecting mechanism includes a connecting sleeve 51, which is fixedly connected to the outer side of the top of the respirator 4. A connecting block 52 is fixedly connected to the bottom of the outer side of the breathing tube 3. The connecting block 52 is inserted into the inside of the connecting groove 53, which is opened on the inner wall of the connecting sleeve 51. The connecting block 52 engages with a fixing block 55. The fixing block 55 is located inside the fixing cavity 56, which is opened on the inner side of the inner wall of the connecting groove 53. An auxiliary spring 58 is provided between the fixing block 55 and the inner wall of the fixing cavity 56 at the position of the fixing block 55 away from the connecting groove 53 and the top. A movement control component is provided at the bottom of the fixing block 55.

[0031] During operation, the efficiency of the breather used in the existing oil-immersed filter reactor in absorbing moisture from the air will decrease after prolonged use. At this time, the breather needs to be replaced to avoid the insulation performance being reduced due to excessive water content in the insulating oil inside the reactor. The existing breather and oil-immersed filter reactor are mostly connected by bolts. When installing and disassembling, wrenches or other tools are required. By rotating the connecting shaft 67, the obstruction of the fixing block 55 on the connecting block 52 when it is inserted into the connecting groove 53 is released. After the fixing block 55 is completely released from the obstruction of the connecting block 52, the nut 72 is tightened to fix the fixing block 55 in a state where it will not obstruct the connecting block 52. After the connecting block 52 is fully inserted into the connecting groove 53, the nut 72 is loosened again and the connecting shaft 67 is rotated in the opposite direction to move the fixing block 55 back to its original position, so that the fixing block 55 limits the connection block 52 and connects the breathing tube 3 and the breather 4.

[0032] Furthermore, the auxiliary spring 58 is fixedly connected to the fixed block 55 on the side closer to the fixed block 55, and the auxiliary spring 58 is fixedly connected to the inner wall of the fixed cavity 56 on the side away from the fixed block 55.

[0033] During operation, as the fixed block 55 moves back to its original position by rotating the knob 68 in the opposite direction, the fixed block 55 is simultaneously pushed by the restoring force of the auxiliary spring 58. At this time, the force required to return the fixed block 55 to its original position by rotating the knob 68 in the opposite direction will be smaller, which facilitates the connection between the breathing tube 3 and the respirator 4. The connection between the breathing tube 3 and the respirator 4 can be achieved without rotating the knob 68 too forcefully.

[0034] Furthermore, a slider 59 is fixedly connected to the top of the fixing block 55, and the slider 59 is slidably connected inside the slide groove 61, which is opened at the top of the inner wall of the fixing cavity 56.

[0035] During operation, when the fixed block 55 moves, the slider 59, which is fixedly connected to the top of the fixed block 55, slides synchronously inside the groove 61. The combined action of the slider 59 and the groove 61 reduces the contact area between the fixed block 55 and the inner wall of the fixed cavity 56, thereby reducing the friction between the fixed block 55 and the inner wall of the fixed cavity 56, making the movement of the fixed block 55 inside the fixed cavity 56 smoother.

[0036] Furthermore, the motion control component includes a threaded sleeve 62, which is fixedly connected to the bottom end of the fixed block 55 near the connecting block 52, and the threaded sleeve 62 is threadedly connected to the lead screw 63. One side of the lead screw 63 is rotatably connected to the inner wall of the fixed cavity 56, and the other side of the lead screw 63 is rotatably connected to the inner wall of the transmission cavity 66. The lead screw 63 passes through the bottom end of the fixed block 55. The transmission cavity 66 is opened at the bottom end of the fixed cavity 56 near the connecting block 52, and the transmission cavity 66 communicates with the fixed cavity 56. A driven gear 64 is fixedly connected to the side of the lead screw 63 away from the fixed block 55. The bottom end of the driven gear 64 meshes with the driving gear 65. A connecting shaft 67 is fixedly connected to one side of the driving gear 65. The connecting shaft 67 passes through the connecting sleeve 51 and extends to the outside of the connecting sleeve 51 on the side away from the driving gear 65.

[0037] During operation, when the rotation limit on the connecting shaft 67 is released, rotating the knob 68 drives the driving gear 65 to rotate synchronously via the connecting shaft 67. The driving gear 65 then drives the meshing driven gear 64 to rotate synchronously, which in turn causes the lead screw 63, which is fixedly connected to the driven gear 64, to rotate synchronously. The lead screw 63 then moves the threaded sleeve 62, which in turn moves the fixed block 55, causing it to move synchronously into the fixed cavity 56 and simultaneously compress the auxiliary spring 58. Under this compressive force, the auxiliary spring 58 undergoes elastic deformation. After the fixed block 55 is fully inside the fixed cavity 56, the connecting block 52 is aligned with the connecting groove 53. Then insert the connecting block 52 into the connecting groove 53 to its limit. At this time, rotate the knob 68 in the opposite direction to move the fixing block 55 back to its original position, so that the fixing block 55 fixes the connecting block 52, thus connecting the respirator 4 and the breathing tube 3. During the process of rotating the knob 68 in the opposite direction to move the fixing block 55 back to its original position, the fixing block 55 will also be pushed by the restoring force of the auxiliary spring 58. At this time, the force required to rotate the knob 68 in the opposite direction to restore the fixing block 55 to its original position will be smaller, which facilitates the connection between the breathing tube 3 and the respirator 4. The connection between the breathing tube 3 and the respirator 4 can be made without turning the knob 68 too hard. When you want to disconnect the breathing tube 3 and the respirator 4 and replace the respirator 4, simply reverse the operation.

[0038] Furthermore, a knob 68 is fixedly connected to the side of the connecting shaft 67 away from the drive gear 65. An anti-slip sleeve 69 is glued to the outside of the knob 68. The anti-slip sleeve 69 is made of rubber and has anti-slip texture on its outside.

[0039] During operation, the knob 68 facilitates the rotation of the connecting shaft 67. The rubber anti-slip sleeve 69 on the outside of the knob 68 and the anti-slip texture on the outside of the anti-slip sleeve 69 increase the friction and prevent slippage when the knob 68 is rotated.

[0040] Furthermore, a threaded sleeve 71 is fitted on the outer side of the connecting shaft 67. The threaded sleeve 71 is fixedly connected to the connecting sleeve 51 on the side near the outer wall of the connecting sleeve 51, and a nut 72 is threadedly connected to the outer side of the threaded sleeve 71.

[0041] During operation, when connecting the breathing tube 3 to the respirator 4, first loosen the nut 72 to release the threaded sleeve 71 from its tight fit with the outer side of the connecting shaft 67. At this point, the threaded sleeve 71 releases its limiting effect on the rotation of the connecting shaft 67. Rotating the connecting shaft 67 then releases the obstruction of the fixing block 55 on the connecting block 52 when it is inserted into the connecting groove 53. After the fixing block 55 is completely released from obstruction, tighten the nut 72 to secure the fixing block 55 in place. When the connecting block 52 is fully inserted into the connecting groove 53, the nut 72 is loosened again and the connecting shaft 67 is rotated in the opposite direction to allow the fixing block 55 to move back to its original position, thus limiting the connection block 52 and connecting the breathing tube 3 and the respirator 4. At this time, the nut 72 is tightened again, causing the nut 72 to press against the threaded sleeve 71, making the inside of the threaded sleeve 71 fit tightly against the outside of the connecting shaft 67. The frictional force limits the rotation of the connecting shaft 67.

[0042] Furthermore, a locking block 73 is glued to the inner wall of the connecting groove 53. The locking block 73 is made of rubber and engages with the locking groove 74. The locking groove 74 is located on the side of the connecting block 52 away from the breathing tube 3. A sealing ring 75 is fixedly connected to the top of the respirator 4. The sealing ring 75 is made of silicone and engages with the fitting groove 76. The fitting groove 76 is located at the bottom of the breathing tube 3.

[0043] During operation, when connecting the breathing tube 3 and the respirator 4, the sealing ring 75 also moves with the respirator 4 to the breathing tube 3 and inserts into the interior of the fitting groove 76, tightly fitting with the inner wall of the fitting groove 76 and completely filling the interior of the fitting groove 76, thereby achieving the effect of blocking air and preventing air from entering the interior of the reactor housing 1 directly through the breathing tube 3 without being filtered.

[0044] Working Principle: After prolonged use, the efficiency of the breather used in existing oil-immersed filter reactors in absorbing moisture from the air decreases. Therefore, the breather needs to be replaced to prevent excessive moisture content in the insulating oil inside the reactor, which could lead to a decline in insulation performance. Currently, the breather and oil-immersed filter reactor are mostly connected by bolts, requiring wrenches or other tools for installation and disassembly. This method is inefficient when replacing breathers for multiple oil-immersed filter reactors. To connect the breather tube 3 to the breather 4, first loosen the nut 72 to release the threaded sleeve 71 from its tight fit with the outer side of the connecting shaft 67. This releases the threaded sleeve 71 from its limiting effect on the rotation of the connecting shaft 67. At this time, the obstruction of the fixing block 55 on the connecting block 52 when the connecting block 52 is inserted into the connecting groove 53 can be released by rotating the connecting shaft 67. After the fixing block 55 is completely released from the obstruction of the connecting block 52, tighten the nut 72 to fix the fixing block 55 to a state where it will not obstruct the connecting block 52. After the connecting block 52 is fully inserted into the connecting groove 53, loosen the nut 72 again and rotate the connecting shaft 67 in the opposite direction to make the fixing block 55 move back to its original position, so that the fixing block 55 limits the connection block 52 and connects the breathing tube 3 and the respirator 4. At this time, tighten the nut 72 again to squeeze the threaded sleeve 71 so that the inside of the threaded sleeve 71 is tightly fitted with the outside of the connecting shaft 67. The friction force limits the rotation of the connecting shaft 67.

[0045] When the rotation limit on the connecting shaft 67 is released, rotating the knob 68 drives the driving gear 65 to rotate synchronously via the connecting shaft 67. The driving gear 65 then drives the meshing driven gear 64 to rotate synchronously, which in turn causes the lead screw 63, which is fixedly connected to the driven gear 64, to rotate synchronously. The lead screw 63 then moves the threaded sleeve 62, which in turn moves the fixed block 55, causing it to move synchronously into the fixed cavity 56 and simultaneously compress the auxiliary spring 58. Under this compressive force, the auxiliary spring 58 undergoes elastic deformation. After the fixed block 55 is fully inside the fixed cavity 56, the connecting block 52 is aligned with the connecting groove 53, and then... When the connecting block 52 is inserted into the connecting groove 53 to its limit, the knob 68 is rotated in the opposite direction to move the fixing block 55 back to its original position, thus fixing the connecting block 52 and connecting the respirator 4 and the breathing tube 3. During the process of rotating the knob 68 in the opposite direction to move the fixing block 55 back to its original position, the fixing block 55 will also be pushed by the restoring force of the auxiliary spring 58. At this time, the force required to rotate the knob 68 in the opposite direction to return the fixing block 55 to its original position will be smaller, which facilitates the connection between the breathing tube 3 and the respirator 4. The connection between the breathing tube 3 and the respirator 4 can be made without turning the knob 68 too forcefully. When it is necessary to disconnect the connection between the breathing tube 3 and the respirator 4 and replace the respirator 4, the operation is reversed.

[0046] When the fixed block 55 moves, the guide rod 57 guides the movement of the fixed block 55, preventing the fixed block 55 from shaking and coming into contact with the inner wall of the fixed cavity 56 when it moves inside the fixed cavity 56, thus preventing the fixed block 55 from getting stuck and unable to move.

[0047] When the fixed block 55 moves, the slider 59, which is fixedly connected to the top of the fixed block 55, slides synchronously inside the groove 61. The combined action of the slider 59 and the groove 61 reduces the contact area between the fixed block 55 and the inner wall of the fixed cavity 56, thereby reducing the friction between the fixed block 55 and the inner wall of the fixed cavity 56, making the fixed block 55 move more smoothly inside the fixed cavity 56.

[0048] When the connecting block 52 is inserted into the connecting groove 53, one side of the connecting block 52 squeezes the locking block 73, which is glued to the inner wall of the connecting groove 53. Under the action of the squeezing force, the rubber locking block 73 undergoes elastic deformation. When the connecting block 52 is inserted into the connecting groove 53 to its limit, the squeezing force of the connecting block 52 on the locking block 73 disappears. At this time, the locking block 73 returns to its original shape under its own restoring force and engages with the locking groove 74, which plays an auxiliary role in fixing the connection between the breathing tube 3 and the respirator 4.

[0049] When connecting the breathing tube 3 and the respirator 4, the sealing ring 75 also moves with the respirator 4 into the breathing tube 3 and is inserted into the interior of the fitting groove 76. It fits tightly against the inner wall of the fitting groove 76, completely filling the interior of the fitting groove 76, thereby blocking the air and preventing air from entering the interior of the reactor housing 1 directly through the breathing tube 3 without being filtered.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An easy-to-maintain oil-immersed filter reactor, comprising a reactor housing (1), an oil tank (2) fixedly connected to the top of the reactor housing (1), a breathing tube (3) fixedly connected to the front side of the oil tank (2), and a respirator (4) provided at the bottom end of the breathing tube (3); characterized in that: A connecting mechanism is provided between the top end of the respirator (4) and the bottom end of the breathing tube (3); The connecting mechanism includes a connecting sleeve (51), which is fixedly connected to the outer side of the top of the respirator (4). A connecting block (52) is fixedly connected to the bottom of the outer side of the breathing tube (3). The connecting block (52) is inserted into the inside of the connecting groove (53). The connecting groove (53) is opened on the inner wall of the connecting sleeve (51). The connecting block (52) is engaged with the fixing block (55). The fixing block (55) is set inside the fixing cavity (56). The fixing cavity (56) is opened on the inner side of the inner wall of the connecting groove (53). An auxiliary spring (58) is provided between the fixing block (55) and the inner wall of the fixing cavity (56) at the position of the fixing block (55) away from the connecting groove (53) and the top. A movement control component is provided at the bottom of the fixing block (55). The fixing block (55) is sleeved on the outside of the guide rod (57), and the guide rod (57) is fixedly connected to the inner wall of the fixing cavity (56) near the center. The auxiliary spring (58) is fixedly connected to the fixed block (55) on the side closer to the fixed block (55), and the auxiliary spring (58) is fixedly connected to the inner wall of the fixed cavity (56) on the side away from the fixed block (55). The top of the fixed block (55) is fixedly connected to a slider (59), and the slider (59) is slidably connected inside the groove (61), which is opened at the top of the inner wall of the fixed cavity (56). The movement control assembly includes a threaded sleeve (62), which is fixedly connected to the bottom end of the fixed block (55) near the connecting block (52). The threaded sleeve (62) is threadedly connected to a lead screw (63). One side of the lead screw (63) is rotatably connected to the inner wall of the fixed cavity (56), and the other side of the lead screw (63) is rotatably connected to the inner wall of the transmission cavity (66). The lead screw (63) passes through the bottom end of the fixed block (55), and the transmission cavity (66) is located in the fixed cavity (56). The bottom end is close to the side of the connecting block (52), and the transmission cavity (66) is connected to the fixed cavity (56). The lead screw (63) is fixedly connected to the side away from the fixed block (55) with a driven gear (64). The bottom end of the driven gear (64) meshes with the driving gear (65). The side of the driving gear (65) is fixedly connected with a connecting shaft (67). The side of the connecting shaft (67) away from the driving gear (65) passes through the connecting sleeve (51) and extends to the outside of the connecting sleeve (51).

2. The oil-immersed filter reactor for easy maintenance according to claim 1, characterized in that: A knob (68) is fixedly connected to the side of the connecting shaft (67) away from the drive gear (65). An anti-slip sleeve (69) is glued to the outside of the knob (68). The anti-slip sleeve (69) is made of rubber and has anti-slip texture on the outside.

3. The oil-immersed filter reactor for easy maintenance according to claim 2, characterized in that: The outer side of the connecting shaft (67) is fitted with a threaded sleeve (71), which is fixedly connected to the connecting sleeve (51) on the side near the outer wall of the connecting sleeve (51), and a nut (72) is threadedly connected to the outer side of the threaded sleeve (71).

4. The oil-immersed filter reactor for easy maintenance according to claim 3, characterized in that: The inner wall of the connecting groove (53) is glued with a locking block (73). The locking block (73) is made of rubber and engages with the locking groove (74). The locking groove (74) is located on the side of the connecting block (52) away from the breathing tube (3). The top of the respirator (4) is fixedly connected with a sealing ring (75). The sealing ring (75) is made of silicone and engages with the fitting groove (76). The fitting groove (76) is located at the bottom of the breathing tube (3).

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