A multi-sealed motor

Abstract

The present invention relates to the technical field of motors, and specifically relates to a motor with multiple seals, including a motor housing and a motor cover. A support ring platform is fixedly arranged at the opening of the motor housing. An installation sealing groove is formed on the support ring platform. An insertion sealing ring is fixedly arranged in the installation sealing groove, and a fitting sealing ring is fixedly arranged inside the support ring platform. The motor cover is fixedly installed on the motor housing. A connection sealing ring groove is formed on the end face of the cover opening of the motor cover. An installation sealing groove is formed on the motor housing to cooperate with the outer end face of the motor cover. An insertion sealing ring is fixedly arranged in the installation sealing groove to cooperate with the connection sealing ring groove on the motor cover. Moreover, a fitting sealing ring is arranged inside the motor housing to cooperate with the inner end face of the motor cover, realizing multi-layer sealing between the motor housing and the motor cover, and fully ensuring the sealing performance between the motor housing and the motor cover.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and specifically to a multi-sealed motor. Background Art

[0002] A motor is a power source, which is widely used in various underwater operation machines, working in rivers, lakes, seas, underground and any other underwater occasions, and is applied to fields such as industry, agriculture, river management, sewage disposal projects, etc. With the development of urbanization, the recycling of water resources, the desalination of seawater and the environmental protection requirements of enterprises will further increase the demand for motors.

[0003] Although the existing motors can meet the requirements of underwater operations in terms of sealing, most of their seals are single-layer seals. When the motors operate in deep water areas or complex underwater environments with a lot of sediment, the sealing effect of the motors cannot be guaranteed for a long time, resulting in potential use hazards for the motors. In severe cases, it is very likely to cause damage to the motors, resulting in relatively large economic losses. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-sealed motor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-sealed motor includes a motor housing and a motor cover. A support ring platform is fixedly arranged at the housing opening of the motor housing. An installation sealing groove is formed on the support ring platform. An insertion sealing ring is fixedly arranged in the installation sealing groove, and a fitting sealing ring is fixedly arranged inside the support ring platform. The motor cover is fixedly installed on the motor housing. A connection sealing ring channel is formed on the end face of the cover opening of the motor cover. The inner wall of the installation sealing groove is in close fit with the outer end face of the motor cover. The insertion sealing ring is inserted into the connection sealing ring channel. The fitting sealing ring is in close fit with the inner end face of the motor cover. An installation through hole is formed on the motor cover. An inner convex ring platform is fixedly arranged at the inner port of the installation through hole. A connection sealing groove is formed on the inner convex ring platform. Support installation rods are symmetrically and fixedly arranged on the upper and lower sides of the inner end face of the motor cover. Locking bearing plates are symmetrically and fixedly arranged on the motor cover between the support installation rods. A fitting protruding block is fixedly arranged on the locking bearing plate. An installation ring sleeve is fixedly arranged at the outer port of the installation through hole. Fitting bearing blocks are symmetrically and fixedly arranged on both sides of the outside of the motor cover. A fitting sealing channel is formed on the fitting bearing block. A movable guiding hole is formed on the fitting bearing block inside the fitting sealing channel, and the movable guiding hole penetrates the motor cover. A motor multi-sealing mechanism is installed on the motor cover.

[0007] Preferably, the motor multi-sealing mechanism includes a motor shaft, a driving mating ring, a sealing movable sleeve, a connecting movable ring, a second mechanical seal, a third mechanical seal, and a movable connecting ring plate. The motor shaft is installed on the motor cover through an installation through hole, and a reinforcing connecting sleeve is fixedly arranged on the motor shaft. The reinforcing connecting sleeve is located outside the motor cover.

[0008] Preferably, an insertion sealing ring channel is formed inside the reinforcing connecting sleeve, and a mating connecting column is fixedly arranged on the inner circumference of the insertion sealing ring channel.

[0009] Preferably, the driving mating ring is installed inside the motor cover. The motor shaft passes through the driving mating ring, and support guiding plates are symmetrically and fixedly arranged at the upper and lower ends of the driving mating ring. A mating support hole is formed on the support guiding plate, and a support installation rod is inserted into the mating support hole. A connecting spring is sleeved on the support installation rod.

[0010] Preferably, elastic locking plates are symmetrically and fixedly arranged on the support guiding plate, and mating locking blocks are fixedly arranged on the elastic locking plates. Lateral connecting bearing plates are symmetrically and fixedly arranged on both sides of the driving mating ring. A mating movable hinge rod is hinged on the lateral connecting bearing plate, and the other end of the mating movable hinge rod is hinged with a sealing movable sleeve.

[0011] Preferably, there are two sealing movable sleeves, which are installed inside the motor cover. Two insertion sealing ring plates are symmetrically and fixedly arranged on the sealing movable sleeve, and a bearing connecting block is fixedly arranged on the outer end face of the sealing movable sleeve. The bearing connecting block is hinged with the mating movable hinge rod, and a movable guiding insertion rod is fixedly arranged on the bearing connecting block.

[0012] Preferably, the movable guiding insertion rod is inserted into a movable guiding hole, and a support mating plate is fixedly arranged at the end of the movable guiding insertion rod away from the sealing movable sleeve. A plugging insertion ring is fixedly arranged on the support mating plate. The plugging insertion ring is located outside the motor cover. Reinforcing connecting grooves are symmetrically formed at the upper and lower ends of one sealing movable sleeve, and reinforcing connecting strips are symmetrically and fixedly arranged at the upper and lower ends of the other sealing movable sleeve.

[0013] Preferably, a connecting movable ring is sleeved on the motor shaft. An engaging mating ring groove is formed on the outer end face of the connecting movable ring, and a first mechanical seal is installed in the connecting movable ring. The first mechanical seal cooperates with an inner bearing sealing ring. An installation inner ring groove is formed in the inner bearing sealing ring, and a sealing washer is inserted into the installation inner ring groove. The sealing washer is in close fit with the motor shaft.

[0014] Preferably, a second mechanical seal is installed in the mounting through-hole on the motor cover. The second mechanical seal cooperates with the motor shaft. A third mechanical seal is installed in the mounting ring sleeve, and the third mechanical seal cooperates with a movable connection ring plate.

[0015] Preferably, an inner insertion convex ring is fixedly arranged on the movable connection ring plate. A mating connection hole is circumferentially formed on the inner insertion convex ring. The movable connection ring plate is inserted into the strengthening connection sleeve, and the inner insertion convex ring is inserted into the insertion sealing ring channel. A mating connection column is inserted into the mating connection hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, with the following advantages:

[0017] 1. An installation sealing groove is formed on the motor housing to cooperate with the outer end face of the motor cover. A plugging sealing ring is fixedly arranged in the installation sealing groove to cooperate with the connection sealing ring channel on the motor cover. Moreover, a fitting sealing ring is further arranged on the inner side of the motor housing to cooperate with the inner end face of the motor cover to achieve multi-layer sealing between the motor housing and the motor cover, fully ensuring the sealing performance between the motor housing and the motor cover.

[0018] 2. A connecting movable ring is sleeved on the motor shaft. A first mechanical seal is installed on the inner side of the connecting movable ring. The first mechanical seal cooperates with an inner bearing sealing ring. A sealing gasket is installed inside the inner bearing sealing ring, and the sealing gasket is closely fitted with the motor shaft, ensuring the sealing performance between the motor shaft and the inner bearing sealing ring. At the same time, two sealing movable connecting sleeves are arranged inside the motor cover. Plugging sealing ring plates are symmetrically arranged on the sealing movable connecting sleeves. The two sealing movable connecting sleeves are closed together. One plugging sealing ring plate on the sealing movable connecting sleeve is inserted into the connecting sealing groove, and the other plugging sealing ring plate is inserted into the connecting and mating ring groove, further strengthening the sealing performance between the motor shaft and the motor cover from the inner side of the motor cover.

[0019] 3. In addition, a movable connection ring plate is installed on the outer side of the motor cover through a third mechanical seal. A strengthening connection sleeve is arranged on the motor shaft. When the motor shaft and the motor cover are assembled, the strengthening connection sleeve is sleeved on the movable connection ring plate to achieve the first layer of sealing between the two. At the same time, the inner insertion convex ring on the strengthening connection sleeve is inserted into the insertion sealing ring channel on the strengthening connection sleeve to achieve the second layer of sealing between the two. In this way, with the cooperation of the strengthening connection sleeve and the movable connection ring plate, the sealing performance between the motor shaft and the motor cover can be further strengthened from the outer side of the motor cover. With the cooperation of multiple sealing structures, the sealing performance of the motor itself can be greatly improved, ensuring its long-term and safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly schematic diagram of the motor.

[0021] Figure 2 It is a schematic structural diagram of a motor housing.

[0022] Figure 3 It is an assembly schematic diagram of a motor cover and a motor shaft.

[0023] Figure 4 It is Figure 3 an enlarged schematic diagram of part A in

[0024] Figure 5 a schematic structural diagram of the motor cover from the first perspective.

[0025] Figure 6 a schematic structural diagram of the motor cover from the second perspective.

[0026] Figure 7 an assembly schematic diagram of the motor cover.

[0027] Figure 8 a schematic structural diagram of the motor shaft.

[0028] Figure 9 an exploded schematic diagram of the assembly of a sealed movable sleeve and a connecting movable ring.

[0029] In the figure: 1. Motor housing; 11. Support ring platform; 12. Installation sealing groove; 13. Plug-in sealing ring; 14. Fitting sealing ring; 2. Motor cover; 20. Connecting sealing ring channel; 21. Installation through hole; 22. Inner convex ring platform; 23. Connecting sealing groove; 24. Support installation rod; 25. Locking bearing plate; 251. Fitting protruding block; 26. Installation ring sleeve; 27. Fitting bearing block; 28. Fitting sealing channel; 29. Movable guiding hole; 3. Motor shaft; 31. Reinforcing connecting sleeve; 32. Plug-in sealing ring channel; 33. Fitting connection column; 4. Driving fitting ring; 41. Support guiding plate; 42. Fitting support hole; 43. Connecting spring; 44. Elastic locking plate; 45. Fitting locking block; 46. Lateral connection bearing plate; 47. Fitting movable hinge rod; 5. Sealed movable sleeve; 51. Plug-in sealing ring plate; 52. Bearing connection block; 53. Movable guiding plug-in rod; 54. Support fitting plate; 55. Plugging plugging ring; 56. Reinforcing connection groove; 57. Reinforcing connection strip; 6. Connecting movable ring; 61. Connecting fitting ring groove; 62. First mechanical seal; 63. Inner bearing seal ring; 64. Installation inner ring groove; 65. Sealing washer; 7. Second mechanical seal; 8. Third mechanical seal; 9. Movable connection ring plate; 91. Inner inserted convex ring; 92. Fitting connection hole. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 9 , the present invention provides a technical solution:

[0032] A multi-sealed motor includes a motor housing 1 and a motor cover 2. A support ring platform 11 is fixedly arranged at the housing opening of the motor housing 1. An installation sealing groove 12 is formed on the support ring platform 11. A plug-in sealing ring 13 is fixedly arranged in the installation sealing groove 12. And a fitting sealing ring 14 is fixedly arranged inside the support ring platform 11. The motor cover 2 is fixedly installed on the motor housing 1. A connection sealing ring channel 20 is formed on the cover end surface of the motor cover 2. The inner wall of the installation sealing groove 12 is in close fit with the outer end surface of the motor cover 2. The plug-in sealing ring 13 is plugged into the connection sealing ring channel 20. The fitting sealing ring 14 is in close fit with the inner end surface of the motor cover 2. An installation through hole 21 is formed on the motor cover 2. An inner convex ring platform 22 is fixedly arranged at the inner port of the installation through hole 21. A connection sealing groove 23 is formed on the inner convex ring platform 22. Support installation rods 24 are symmetrically and fixedly arranged on both the upper and lower sides of the inner end surface of the motor cover 2. Locking bearing plates 25 are symmetrically and fixedly arranged on the motor cover 2 between the support installation rods 24. A fitting protruding block 251 is fixedly arranged on the locking bearing plate 25. An installation ring sleeve 26 is fixedly arranged at the outer port of the installation through hole 21. Fitting bearing blocks 27 are symmetrically and fixedly arranged on both sides of the outside of the motor cover 2. A fitting sealing channel 28 is formed on the fitting bearing block 27. A movable guiding hole 29 is formed on the fitting bearing block 27 inside the fitting sealing channel 28. The movable guiding hole 29 penetrates through the motor cover 2. A motor multi-sealing mechanism is installed on the motor cover 2.

[0033] The motor multi-sealing mechanism includes a motor shaft 3, a driving fitting ring 4, a sealing movable connecting sleeve 5, a connecting movable ring 6, a second mechanical seal 7, a third mechanical seal 8 and a movable connecting ring plate 9. The motor shaft 3 passes through the installation through hole 21 and is installed on the motor cover 2. And a strengthening connecting sleeve 31 is fixedly arranged on the motor shaft 3. The strengthening connecting sleeve 31 is located outside the motor cover 2.

[0034] A plug-in sealing ring channel 32 is formed inside the strengthening connecting sleeve 31. A fitting connecting column 33 is fixedly arranged on the inner circumference of the plug-in sealing ring channel 32. And the inner surface of the strengthening connecting sleeve 31 and the inner wall of the plug-in sealing ring channel 32 are both smooth and burr-free. The number of the fitting connecting columns 33 can be set according to actual use requirements.

[0035] The driving mating ring 4 is installed inside the motor cover 2. The motor shaft 3 passes through the driving mating ring 4. Symmetrically fixed support guide plates 41 are provided at the upper and lower ends of the driving mating ring 4. A mating support hole 42 is formed in the support guide plate 41. A support mounting rod 24 is inserted into the mating support hole 42. A connecting spring 43 is sleeved on the support mounting rod 24. In addition, the inner diameter of the driving mating ring 4 is larger than the diameter of the motor shaft 3. The two ends of the connecting spring 43 are respectively fixed on the inner end face of the motor cover 2 and the support guide plate 41.

[0036] Elastic locking plates 44 are symmetrically and fixedly provided on the support guide plate 41. A mating locking block 45 is fixedly provided on the elastic locking plate 44. Lateral connection bearing plates 46 are symmetrically and fixedly provided on both sides of the driving mating ring 4. A mating movable hinge rod 47 is hinged on the lateral connection bearing plate 46. The other end of the mating movable hinge rod 47 is hinged to a sealing movable sleeve 5. When the mating locking block 45 fixes the driving mating ring 4, it is buckled together with the mating protruding block 251.

[0037] There are two sealing movable sleeves 5, which are installed inside the motor cover 2. Two plugging sealing ring plates 51 are symmetrically and fixedly provided on the sealing movable sleeve 5. A bearing connection block 52 is fixedly provided on the outer end face of the sealing movable sleeve 5. The bearing connection block 52 is hinged to the mating movable hinge rod 47. A movable guide plugging rod 53 is fixedly provided on the bearing connection block 52. In addition, the sealing movable sleeves 5 are closed together in the working state. At this time, a plugging sealing ring plate 51 on one of the sealing movable sleeves 5 is inserted into the connecting sealing groove 23.

[0038] The movable guide plugging rod 53 is inserted into the movable guide hole 29. A support mating plate 54 is fixedly provided at the end of the movable guide plugging rod 53 away from the sealing movable sleeve 5. A plugging sealing ring 55 is fixedly provided on the support mating plate 54. The plugging sealing ring 55 is located outside the motor cover 2. Reinforcing connection grooves 56 are symmetrically formed at the upper and lower ends of one sealing movable sleeve 5. Reinforcing connection strips 57 are symmetrically and fixedly provided at the upper and lower ends of the other sealing movable sleeve 5. When the two sealing movable sleeves 5 are closed together, the plugging sealing ring 55 is inserted into the mating sealing channel 28 to seal the movable guide hole 29. At this time, the reinforcing connection strip 57 on one sealing movable sleeve 5 is inserted into the reinforcing connection groove 56 on the other sealing movable sleeve 5.

[0039] A connecting movable ring 6 is sleeved on the motor shaft 3. An engagement mating ring groove 61 is formed on the outer end face of the connecting movable ring 6. A first mechanical seal 62 is installed in the connecting movable ring 6. The first mechanical seal 62 is matched with an inner bearing seal ring 63. An installation inner ring groove 64 is formed in the inner bearing seal ring 63. A sealing washer 65 is inserted into the installation inner ring groove 64. The sealing washer 65 is in close fit with the motor shaft 3 to ensure the sealing performance between the motor shaft 3 and the inner bearing seal ring 63. When the two sealing movable sleeves 5 are closed together, another plugging seal ring plate 51 on the sealing movable sleeve 5 is plugged into the engagement mating ring groove 61.

[0040] A second mechanical seal 7 is installed in the installation through hole 21 on the motor cover 2. The second mechanical seal 7 is matched with the motor shaft 3. A third mechanical seal 8 is installed in the installation ring sleeve 26. The third mechanical seal 8 is matched with a movable connection ring plate 9.

[0041] An inner plug convex ring 91 is fixedly arranged on the movable connection ring plate 9. Matching connection holes 92 are circumferentially formed on the inner plug convex ring 91. The movable connection ring plate 9 is inserted into the strengthening connection sleeve 31, and the two are in close fit. The inner plug convex ring 91 is inserted into the plugging seal ring channel 32, and the two are in close fit. A matching connection column 33 is inserted into the matching connection holes 92. The number of the matching connection columns 33 is equal to the number of the matching connection holes 92.

[0042] When the motor cover 2 is fixedly installed on the motor housing 1, the motor cover 2 is inserted into the installation sealing groove 12 to achieve the first layer of sealing between the motor cover 2 and the motor housing 1. At the same time, the insertion sealing ring 13 on the motor housing 1 is inserted into the connection sealing ring channel 20 on the motor cover 2 to achieve the second layer of sealing between the motor housing 1 and the motor cover 2. Moreover, the fitting sealing ring 14 on the motor housing 1 cooperates with the inner end face of the motor cover 2 to achieve the third layer of sealing between the motor cover 2 and the motor housing 1, thereby fully ensuring the sealing performance between the motor housing 1 and the motor cover 2. When the sealing movable sleeves 5 are not closed together, the cooperating locking block 45 contacts the cooperating protruding block 251. Under the action of the cooperating protruding block 251, the elastic locking plate 44 is in a deformed state. When further sealing between the motor shaft 3 and the motor cover 2 is carried out, the connecting movable ring 6 is sleeved on the motor shaft 3, and the inner bearing sealing ring 63 is in close contact with the motor shaft 3. At this time, the sealing washer 65 is in a compressed state, fully ensuring the sealing performance between the motor shaft 3 and the inner bearing sealing ring 63. Then, the driving cooperating ring 4 is pushed towards the inner convex ring platform 22 until the cooperating locking block 45 passes over the cooperating protruding block 251. The elastic locking plate 44 is reset under the action of the elastic force, so that the cooperating locking block 45 is engaged with the cooperating protruding block 251 to achieve the fixation of the driving cooperating ring 4. When the driving cooperating ring 4 moves, under the action of the cooperating movable hinge rod 47, it will push the two sealing movable sleeves 5 to move towards each other, so that the two sealing movable sleeves 5 are closed together. Furthermore, one insertion sealing ring plate 51 on the sealing movable sleeve 5 is inserted into the connection sealing groove 23, and the other insertion sealing ring plate 51 on the sealing movable sleeve 5 is inserted into the connection and cooperation ring groove 61 on the connecting movable ring 6, further strengthening the sealing performance between the motor shaft 3 and the motor cover 2 from the inner side of the motor cover 2. In addition, when the motor shaft 3 is installed, the strengthening connecting sleeve 31 on the motor shaft 3 is sleeved on the movable connecting ring plate 9 to achieve the first layer of sealed connection between the strengthening connecting sleeve 31 and the movable connecting ring plate 9. At the same time, during the cooperation process between the strengthening connecting sleeve 31 and the movable connecting ring plate 9, the inner inserted convex ring 91 on the movable connecting ring plate 9 is also inserted into the insertion sealing ring channel 32 in the strengthening connecting sleeve 31 to achieve the second layer of sealing between the strengthening connecting sleeve 31 and the movable connecting ring plate 9. Moreover, the cooperating connecting column 33 in the insertion sealing ring channel 32 is also inserted into the cooperating connecting hole 92 on the inner inserted convex ring 91, so that when the motor shaft 3 rotates, it can also drive the movable connecting ring plate 9 to rotate, thereby forming a dynamic seal. In this way, under the cooperation of the strengthening connecting sleeve 31 and the movable connecting ring plate 9, the sealing performance between the motor cover 2 and the motor shaft 3 can be further strengthened from the outer side of the motor cover 2. Under the combined action of the multiple sealing structures, the sealing performance of the motor can be fully ensured, thereby ensuring the long-term safe and stable use of the motor. In addition, when resetting the sealing movable sleeve 5, only need to push the elastic locking plate 44 towards each other so that the cooperating locking block 45 no longer cooperates with the cooperating protruding block 251,It can be reset by the connecting spring 43, and then drive the sealing movable sleeve 5 to reset.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-sealed motor, comprising a motor housing (1) and a motor cover (2), characterized in that: A support ring platform (11) is fixedly arranged at the shell opening of the motor housing (1), a mounting seal groove (12) is provided on the support ring platform (11), a plug-in seal ring (13) is fixedly arranged in the mounting seal groove (12), and a fitting seal ring (14) is fixedly arranged on the inner side of the support ring platform (11); the motor cover (2) is fixedly mounted on the motor housing (1), a connecting seal ring channel (20) is provided on the cover opening end surface of the motor cover (2), and the inner wall of the mounting seal groove (12) is tightly matched with the outer end surface of the motor cover (2). The plug-in sealing ring (13) is plugged into the connecting sealing ring (20), the fitting sealing ring (14) is tightly matched with the inner end surface of the motor cover (2), a mounting through hole (21) is provided on the motor cover (2), an inner convex ring platform (22) is fixedly provided at the inner end of the mounting through hole (21), a connecting sealing groove (23) is provided on the inner convex ring platform (22), support mounting rods (24) are symmetrically fixedly provided on the upper and lower sides of the inner end surface of the motor cover (2), and the motor cover (2) between the support mounting rods (24) is provided with a connection seal groove (23). A locking bearing plate (25) is symmetrically fixedly arranged, a matching protruding block (251) is fixedly arranged on the locking bearing plate (25), a mounting ring (26) is fixedly arranged at the outer end of the mounting through hole (21), matching bearing blocks (27) are symmetrically fixedly arranged on both sides of the outside of the motor cover (2), a matching sealing channel (28) is opened on the matching bearing block (27), and a movable guide hole (29) is opened on the matching bearing block (27) inside the matching sealing channel (28), and the movable guide hole (29) penetrates the motor cover A motor cover (2), wherein a motor multiple sealing mechanism is installed on the motor cover (2), wherein the motor multiple sealing mechanism comprises a motor shaft (3), a drive matching ring (4), a sealing movable sleeve (5), a connecting movable ring (6), a second mechanical seal (7), a third mechanical seal (8) and a movable connecting ring plate (9), wherein the motor shaft (3) passes through a mounting through hole (21) and is installed on the motor cover (2), and a reinforcing connecting sleeve (31) is fixedly provided on the motor shaft (3), and the reinforcing connecting sleeve (31) is located outside the motor cover (2).

2. A multi-sealed motor according to claim 1, characterized in that: The reinforced connection sleeve (31) is provided with an insert sealing ring channel (32) inside, and a matching connection column (33) is fixedly provided on the inner circumference of the insert sealing ring channel (32).

3. A multi-sealed motor according to claim 2, characterized in that: The drive mating ring (4) is installed inside the motor cover (2), the motor shaft (3) passes through the drive mating ring (4), and support guide plates (41) are symmetrically fixedly arranged at the upper and lower ends of the drive mating ring (4), the support guide plates (41) are provided with mating support holes (42), a support mounting rod (24) is inserted into the mating support hole (42), and a connecting spring (43) is sleeved on the support mounting rod (24).

4. A multi-sealed motor according to claim 3, characterized in that: The support guide plate (41) is symmetrically fixedly provided with an elastic locking plate (44), and a matching locking block (45) is fixedly provided on the elastic locking plate (44). Side connecting support plates (46) are symmetrically fixedly provided on both sides of the driving matching ring (4), and a matching movable hinge rod (47) is hingedly connected to the side connecting support plate (46), and the other end of the matching movable hinge rod (47) is hingedly connected to a sealing movable sleeve (5).

5. A multi-sealed motor according to claim 4, characterized in that: There are two sealing movable sleeves (5) installed inside the motor cover (2), two plug-in sealing ring plates (51) are symmetrically fixedly arranged on the sealing movable sleeves (5), and a bearing connection block (52) is fixedly arranged on the outer end surface of the sealing movable sleeve (5), the bearing connection block (52) is hinged with a matching movable hinge rod (47), and a movable guide plug-in rod (53) is fixedly arranged on the bearing connection block (52).

6. A multi-sealed motor according to claim 5, characterized in that: The movable guide plug-in rod (53) is plugged into the movable guide hole (29), and a support matching plate (54) is fixedly provided on the end of the movable guide plug-in rod (53) away from the sealing movable sleeve (5), and a blocking plug-in ring (55) is fixedly provided on the support matching plate (54), and the blocking plug-in ring (55) is located on the outside of the motor cover (2). The upper and lower ends of one sealing movable sleeve (5) are symmetrically provided with reinforced connecting grooves (56), and the upper and lower ends of the other sealing movable sleeve (5) are symmetrically fixedly provided with reinforced connecting strips (57).

7. A multi-sealed motor according to claim 6, characterized in that: The motor shaft (3) is sleeved with a connecting movable ring (6), the outer end surface of the connecting movable ring (6) is provided with a connecting and matching ring groove (61), and a first mechanical seal (62) is installed in the connecting movable ring (6), the first mechanical seal (62) is matched with an inner bearing sealing ring (63), the inner bearing sealing ring (63) is provided with an installation inner ring groove (64), a sealing gasket (65) is inserted in the installation inner ring groove (64), and the sealing gasket (65) is tightly matched with the motor shaft (3).

8. A multi-sealed motor according to claim 7, characterized in that: A second mechanical seal (7) is installed in the installation through hole (21) on the motor cover (2), the second mechanical seal (7) cooperates with the motor shaft (3), a third mechanical seal (8) is installed in the installation ring sleeve (26), and the third mechanical seal (8) cooperates with a movable connection ring plate (9).

9. A multi-sealed motor according to claim 8, characterized in that: An inner plug-in convex ring (91) is fixedly provided on the movable connection ring plate (9), a matching connection hole (92) is provided on the circumference of the inner plug-in convex ring (91), the movable connection ring plate (9) is inserted into the reinforcing connection sleeve (31), the inner plug-in convex ring (91) is inserted into the plug-in sealing ring channel (32), and a matching connection column (33) is inserted into the matching connection hole (92).

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