Multi-sealed motor

Abstract

The invention relates to the technical field of motors, in particular to a multi-sealing motor which comprises a motor shell and a motor cover, a supporting ring table is fixedly arranged at a shell opening of the motor shell, a mounting sealing groove is formed in the supporting ring table, and an insertion sealing ring is fixedly arranged in the mounting sealing groove. A fitting sealing ring is fixedly arranged on the inner side of the supporting ring table, the motor cover is fixedly installed on the motor shell, a connecting sealing ring channel is formed in the end face of a cover opening of the motor cover, and an installation sealing groove is formed in the motor shell and matched with the outer end face of the motor cover. An insertion sealing ring is fixedly arranged in the installation sealing groove and is matched with a connection sealing ring channel on the motor cover, and an attaching sealing ring is further arranged on the inner side of the motor shell and is matched with the inner end face of the motor cover to achieve multi-layer sealing between the motor shell and the motor cover, so that the sealing performance between the motor shell and the motor cover is fully guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of motors, in particular to a motor with multiple seals. Background Art

[0002] The motor is a power source, which is widely used in various underwater operation machines, diving into rivers, lakes, oceans, underground and any other occasions to work in water. It is used in industry, agriculture, river management, sewage engineering and other fields. 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 seals of existing motors can meet the needs of underwater operations, most of them are single-layer seals. When the motors are operating in deep water areas or complex underwater environments with a lot of mud and sand, the sealing effect of the motors cannot be guaranteed for a long time, resulting in hidden dangers in the use of the motors. In serious cases, the motors are likely to be damaged, causing great economic losses. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solutions: A multi-sealed motor comprises a motor shell and a motor cover, wherein a support ring platform is fixedly arranged at the shell opening of the motor shell, a mounting seal groove is provided on the support ring platform, a plug-in seal ring is fixedly arranged in the mounting seal groove, and a fitting seal ring is fixedly arranged on the inner side of the support ring platform, the motor cover is fixedly installed on the motor shell, a connecting seal ring channel is provided on the cover opening end surface of the motor cover, the inner wall of the mounting seal groove is tightly matched with the outer end surface of the motor cover, the plug-in seal ring is plugged into the connecting seal ring channel, the fitting seal ring is tightly matched with the inner end surface of the motor cover, a mounting through hole is provided on the motor cover, and a fixed seal ring is provided at the inner end of the mounting through hole. An inner convex ring platform is provided, and a connecting sealing groove is opened on the inner convex ring platform, support mounting rods are symmetrically fixedly provided on the upper and lower sides of the inner end surface of the motor cover, and a locking bearing plate is symmetrically fixedly provided on the motor cover between the support mounting rods, and a matching protruding block is fixedly provided on the locking bearing plate, and a mounting ring sleeve is fixedly provided at the outer end of the mounting through hole, and matching bearing blocks are symmetrically fixedly provided on the outer sides of the motor cover, and a matching sealing channel is opened on the matching bearing block, and a movable guide hole is opened on the matching bearing block inside the matching sealing channel, and the movable guide hole passes through the motor cover, and a motor multiple sealing mechanism is installed on the motor cover.

[0006] Preferably, the motor multiple sealing mechanism includes a motor shaft, a drive 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 the mounting through hole, and a reinforcing connecting sleeve is fixedly provided on the motor shaft, and the reinforcing connecting sleeve is located on the outside of the motor cover.

[0007] Preferably, a plug-in sealing ring channel is provided inside the reinforced connecting sleeve, and a matching connecting column is fixedly provided on the inner circumference of the plug-in sealing ring channel.

[0008] Preferably, the drive mating ring is installed inside the motor cover, the motor shaft passes through the drive mating ring, and support guide plates are symmetrically fixed at the upper and lower ends of the drive mating ring, a mating support hole is opened on the support guide plate, a support mounting rod is inserted in the mating support hole, and a connecting spring is sleeved on the support mounting rod.

[0009] Preferably, an elastic locking plate is symmetrically fixed on the support guide plate, a matching locking block is fixed on the elastic locking plate, and lateral connecting plates are symmetrically fixed on both sides of the drive matching ring, a matching movable hinge rod is hinged on the lateral connecting plate, and a sealing movable sleeve is hinged on the other end of the matching movable hinge rod.

[0010] Preferably, there are two sealing movable sleeves installed inside the motor cover, two plug-in sealing ring plates are symmetrically fixed on the sealing movable sleeve, and a bearing connecting block is fixedly provided on the outer end surface of the sealing movable sleeve. The bearing connecting block is hinged with a matching movable hinge rod, and a movable guide plug-in rod is fixedly provided on the bearing connecting block.

[0011] Preferably, the movable guide plug-in rod is plugged into the movable guide hole, and a support matching plate is fixedly provided on the end of the movable guide plug-in rod away from the sealing movable sleeve, and a sealing plug-in ring is fixedly provided on the support matching plate, and the sealing plug-in ring is located on the outside of the motor cover. Reinforced connecting grooves are symmetrically provided at the upper and lower ends of one sealing movable sleeve, and reinforced connecting strips are symmetrically fixedly provided at the upper and lower ends of the other sealing movable sleeve.

[0012] Preferably, a connecting movable ring is sleeved on the motor shaft, a mating ring groove is provided on the outer end surface of the connecting movable ring, and a first mechanical seal is installed in the connecting movable ring, the first mechanical seal is matched with an inner bearing sealing ring, an installation inner ring groove is provided in the inner bearing sealing ring, a sealing gasket is inserted in the installation inner ring groove, and the sealing gasket is tightly matched with the motor shaft.

[0013] Preferably, a second mechanical seal is installed in the installation through hole on the motor cover, the second mechanical seal cooperates with the motor shaft, a third mechanical seal is installed in the installation ring sleeve, and the third mechanical seal cooperates with a movable connecting ring plate.

[0014] Preferably, an inner plug-in convex ring is fixedly provided on the movable connection ring plate, a matching connection hole is opened on the circumference of the inner plug-in convex ring, and the movable connection ring plate is inserted in the reinforced connection sleeve, and the inner plug-in convex ring is inserted in the plug-in sealing ring channel, and a matching connection column is inserted in the matching connection hole.

[0015] Compared with the prior art, the invention has the following advantages: 1. An installation sealing groove is opened on the motor housing to match the outer end surface of the motor cover. A plug-in sealing ring is fixedly arranged in the installation sealing groove to match the connecting sealing ring on the motor cover. A fitting sealing ring is also arranged on the inner side of the motor housing to match the inner end surface of the motor cover to realize multi-layer sealing between the motor housing and the motor cover, which fully ensures the sealing between the motor housing and the motor cover.

[0016] 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, and the first mechanical seal is matched with an inner bearing sealing ring, a sealing gasket is installed inside the inner bearing sealing ring, the sealing gasket is tightly matched with the motor shaft, thereby ensuring the sealing between the motor shaft and the inner bearing sealing ring, and at the same time, two sealing movable sleeves are arranged inside the motor cover, plug-in sealing ring plates are symmetrically arranged on the sealing movable sleeves, the two sealing movable sleeves are closed together, and one plug-in sealing ring plate on the sealing movable sleeve is plugged into the connecting sealing groove, and the other plug-in sealing ring plate is plugged into the connecting matching ring groove, thereby further strengthening the sealing between the motor shaft and the motor cover from the inner side of the motor cover.

[0017] 3. In addition, a movable connecting ring plate is installed on the outer side of the motor cover through the third mechanical seal, and a reinforced connecting sleeve is arranged on the motor shaft. When the motor shaft and the motor cover are assembled, the reinforced connecting sleeve is sleeved on the movable connecting ring plate to realize the first layer of sealing between the two. At the same time, the inner plug-in convex ring on the reinforced connecting sleeve is plugged into the plug-in sealing ring channel on the reinforced connecting sleeve to realize the second layer of sealing between the two. In this way, with the cooperation of the reinforced connecting sleeve and the movable connecting ring plate, the sealing between the motor shaft and the motor cover can be further strengthened from the outside of the motor cover. With the cooperation of the multiple sealing structures, the sealing of the motor itself can be greatly improved to ensure its long-term and safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The diagram of the motor assembly is shown in Figure 2.

[0019] Figure 2 This is a schematic diagram of the motor housing structure.

[0020] Figure 3 This is a schematic diagram of the assembly of the motor cover and the motor shaft.

[0021] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the motor cover from the first perspective.

[0023] Figure 6 This is a schematic diagram of the motor cover from a second perspective.

[0024] Figure 7 The figure shows the assembly diagram of the motor cover.

[0025] Figure 8 This is a schematic diagram of the motor shaft structure.

[0026] Fig. 9 An exploded schematic diagram of the assembly of the sealing movable sleeve and the connecting movable ring.

[0027] In the figure: 1. Motor housing; 11. Support ring platform; 12. Install sealing groove; 13. Plug sealing ring; 14. Fit sealing ring; 2. Motor cover; 20. Connect sealing ring; 21. Install through hole; 22. Inner convex ring platform; 23. Connect sealing groove; 24. Support mounting rod; 25. Lock bearing plate; 251. Matching protruding block; 26. Installing ring sleeve; 27. Matching bearing block; 28. Matching sealing channel; 29. ​​Movable guide hole; 3. Motor shaft; 31. Strengthening connecting sleeve; 32. Plug sealing ring; 33. Matching connecting column; 4. Driving matching ring; 41. Support guide plate; 42. Matching supporting hole; 43. Connecting spring ; 44. Elastic locking plate; 45. Matching locking block; 46. Lateral connecting plate; 47. Matching movable hinge rod; 5. Sealing movable sleeve; 51. Plug-in sealing ring plate; 52. Bearing connection block; 53. Movable guide plug-in rod; 54. Support matching plate; 55. Blocking plug-in ring; 56. Strengthening connection groove; 57. Strengthening connection strip; 6. Connecting movable ring; 61. Connecting matching ring groove; 62. First mechanical seal; 63. Inner bearing sealing ring; 64. Installing inner ring groove; 65. Sealing gasket; 7. Second mechanical seal; 8. Third mechanical seal; 9. Movable connecting ring plate; 91. Inserted convex ring; 92. Matching connecting hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 9 , the present invention provides a technical solution: A multi-sealed motor comprises a motor housing 1 and a motor cover 2, wherein a support ring platform 11 is fixedly arranged at the housing 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 installed on the motor housing 1, a connecting seal ring channel 20 is provided on the cover opening end surface of the motor cover 2, 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 seal ring 13 is plugged into the connecting seal ring channel 20, the fitting seal 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, and a mounting through hole 21 is fixed at the inner end of the mounting through hole 21. An inner convex ring platform 22 is fixedly provided, and a connecting sealing groove 23 is opened 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. A locking bearing plate 25 is symmetrically fixedly provided on the motor cover 2 between the supporting mounting rods 24. A matching protruding block 251 is fixedly provided on the locking bearing plate 25. A mounting ring sleeve 26 is fixedly provided at the outer end of the mounting through hole 21. Matching bearing blocks 27 are symmetrically fixedly provided on both sides of the outside of the motor cover 2. A matching sealing channel 28 is opened on the matching bearing block 27. A movable guide hole 29 is opened on the matching bearing block 27 on the inner side of the matching sealing channel 28. The movable guide hole 29 runs through the motor cover 2, and a motor multiple sealing mechanism is installed on the motor cover 2.

[0030] The motor multiple sealing mechanism includes 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. The motor shaft 3 is installed on the motor cover 2 through the mounting through hole 21, and a reinforcing connecting sleeve 31 is fixedly provided on the motor shaft 3, and the reinforcing connecting sleeve 31 is located on the outside of the motor cover 2.

[0031] A plug-in sealing ring 32 is provided inside the reinforced connecting sleeve 31, and a matching connecting column 33 is fixedly provided on the inner circumference of the plug-in sealing ring 32. The inner surface of the reinforced connecting sleeve 31 and the inner wall of the plug-in sealing ring 32 are smooth and free of burrs. The number of matching connecting columns 33 can be set according to actual usage requirements.

[0032] The driving mating ring 4 is installed inside the motor cover 2, the motor shaft 3 passes through the driving mating ring 4, and the upper and lower ends of the driving mating ring 4 are symmetrically fixed with support guide plates 41, and the support guide plate 41 is provided with a mating support hole 42, and the supporting hole 42 is inserted with a supporting mounting rod 24, and the supporting mounting rod 24 is sleeved with a connecting spring 43. In addition, the inner diameter of the driving mating ring 4 is larger than the diameter of the motor shaft 3, and the two ends of the connecting spring 43 are respectively fixed on the inner end surface of the motor cover 2 and the supporting guide plate 41.

[0033] An elastic locking plate 44 is symmetrically fixedly arranged on the support guide plate 41, and a matching locking block 45 is fixedly arranged on the elastic locking plate 44. Lateral connecting plates 46 are symmetrically fixedly arranged on both sides of the driving matching ring 4. A matching movable hinge rod 47 is hinged on the lateral connecting plate 46, and a sealing movable sleeve 5 is hinged on the other end of the matching movable hinge rod 47. The matching locking block 45 is buckled together with the matching protruding block 251 when it plays a fixing role on the driving matching ring 4.

[0034] There are two sealing movable sleeves 5 installed inside the motor cover 2. Two plug-in sealing ring plates 51 are symmetrically fixed on the sealing movable sleeve 5, and a load-bearing connecting block 52 is fixedly provided on the outer end surface of the sealing movable sleeve 5. The load-bearing connecting block 52 is hinged with the matching movable hinge rod 47, and a movable guide plug-in rod 53 is fixedly provided on the load-bearing connecting block 52. In addition, the sealing movable sleeve 5 is closed together in the working state, and at this time, a plug-in sealing ring plate 51 on the sealing movable sleeve 5 is plugged into the connecting sealing groove 23.

[0035] 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 sealing plug-in ring 55 is fixedly provided on the support matching plate 54. The sealing plug-in ring 55 is located on the outside of the motor cover 2. Reinforced connecting grooves 56 are symmetrically provided at the upper and lower ends of one sealing movable sleeve 5, and reinforced connecting strips 57 are symmetrically fixed at the upper and lower ends of the other sealing movable sleeve 5. When the two sealing movable sleeves 5 are closed together, the sealing plug-in ring 55 is plugged into the matching sealing channel 28 to seal the movable guide hole 29, and at this time, the reinforced connecting strip 57 on one sealing movable sleeve 5 is plugged into the reinforced connecting groove 56 on the other sealing movable sleeve 5.

[0036] A connecting movable ring 6 is sleeved on the motor shaft 3, and a mating ring groove 61 is provided on the outer end surface of the connecting movable ring 6, and a first mechanical seal 62 is installed in the connecting movable ring 6, and the first mechanical seal 62 is matched with an inner bearing sealing ring 63, and an installation inner ring groove 64 is provided in the inner bearing sealing ring 63, and 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 to ensure the sealing between the motor shaft 3 and the inner bearing sealing ring 63. When the two sealing movable sleeves 5 are closed together, the other plug-in sealing ring plate 51 on the sealing movable sleeve 5 is inserted in the mating ring groove 61.

[0037] A second mechanical seal 7 is installed in the installation through hole 21 on the motor cover 2 , and the second mechanical seal 7 matches the motor shaft 3 . A third mechanical seal 8 is installed in the installation ring sleeve 26 , and the third mechanical seal 8 matches a movable connection ring plate 9 .

[0038] An inner plug-in convex ring 91 is fixedly provided on the movable connection ring plate 9, and a matching connection hole 92 is opened on the circumference of the inner plug-in convex ring 91. The movable connection ring plate 9 is inserted in the reinforced connection sleeve 31, and the two are tightly matched. The inner plug-in convex ring 91 is inserted in the plug-in sealing ring channel 32, and the two are tightly matched. A matching connection column 33 is inserted in the matching connection hole 92, and the number of the matching connection columns 33 is equal to the number of the matching connection holes 92.

[0039] When the motor cover 2 is fixedly installed on the motor casing 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 casing 1. At the same time, the plug-in sealing ring 13 on the motor casing 1 is inserted into the connecting sealing ring 20 on the motor cover 2 to achieve the second layer of sealing between the motor casing 1 and the motor cover 2. Furthermore, the fitting sealing ring 14 on the motor casing 1 cooperates with the inner end surface of the motor cover 2 to achieve the third layer of sealing between the motor casing 1 and the motor casing 1, thereby fully ensuring the sealing between the motor casing 1 and the motor cover 2. When the sealing movable sleeve 5 is not closed together, the matching locking block 45 contacts the matching protruding block 251, and the elastic locking plate 44 is in a deformed state under the action of the matching protruding block 251. When further sealing between the motor shaft 3 and the motor cover 2, 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 gasket 65 is in a compressed state, which fully ensures the sealing between the motor shaft 3 and the inner bearing sealing ring 63. Then, the driving matching ring 4 is pushed in the direction of the inner convex ring platform 22 until the matching locking block 45 passes over the matching protruding block 251, and the elastic locking plate 44 is reset under the action of elastic force, so that the matching locking block 45 is engaged with the matching protruding block 251, so as to fix the driving matching ring 4. When the driving matching ring 4 moves, it will push the two sealing movable sleeves 5 to move toward each other under the action of the matching movable hinge rod 47, so that the two sealing movable sleeves 5 are closed. Together, a plug-in sealing ring plate 51 on the sealing movable sleeve 5 is plugged into the connecting sealing groove 23, and another plug-in sealing ring plate 51 on the sealing movable sleeve 5 is plugged into the connecting matching ring groove 61 on the connecting movable ring 6, so as to further strengthen the sealing 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 reinforcing connecting sleeve 31 on the motor shaft 3 is sleeved on the movable connecting ring plate 9 to realize the first layer of sealing connection between the reinforcing connecting sleeve 31 and the movable connecting ring plate 9. At the same time, in the process of the reinforcing connecting sleeve 31 cooperating with the movable connecting ring plate 9, the inner plug-in convex ring 91 on the movable connecting ring plate 9 is also plugged into the plug-in sealing ring channel 32 in the reinforcing connecting sleeve 31 to realize the reinforcing connecting sleeve The second layer of sealing between 31 and the movable connecting ring plate 9, and the matching connecting column 33 in the plug-in sealing ring 32 is also plugged into the matching connecting hole 92 on the inner plug-in convex ring 91, so that the motor shaft 3 can also drive the movable connecting ring plate 9 to rotate when it rotates, 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 between the motor cover 2 and the motor shaft 3 can be further strengthened from the outside of the motor cover 2. Under the joint action of multiple sealing structures, the sealing of the motor can be fully guaranteed, thereby ensuring the long-term safe and stable use of the motor. In addition, when resetting the sealing movable sleeve 5, it is only necessary to push the elastic locking plate 44 toward each other so that the matching locking block 45 no longer cooperates with the matching protruding block 251.The driving ring 4 can be reset under the action of the connecting spring 43, thereby driving the sealing movable sleeve 5 to reset.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-sealed motor, comprising a motor housing (1) and a motor cover (2), characterized in that: A support ring platform (11) is fixedly provided 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 provided in the mounting seal groove (12), and a fitting seal ring (14) is fixedly provided on the inner side of the support ring platform (11); the motor cover (2) is fixedly installed on the motor housing (1), a connecting seal ring channel (20) is provided on the cover opening end surface of the motor cover (2), 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 seal ring (13) is plugged into the connecting seal ring channel (20), and the fitting seal 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), The inner convex ring platform (22) is provided with a connecting sealing groove (23); support mounting rods (24) are symmetrically fixedly arranged on the upper and lower sides of the inner end surface of the motor cover (2); a locking bearing plate (25) is symmetrically fixedly arranged on the motor cover (2) between the support mounting rods (24); a matching protruding block (251) is fixedly arranged on the locking bearing plate (25); a mounting ring sleeve (26) is fixedly arranged at the outer end of the mounting through hole (21); matching bearing blocks (27) are symmetrically fixedly arranged on the outer sides of the motor cover (2); a matching sealing channel (28) is provided on the matching bearing block (27); a movable guide hole (29) is provided on the matching bearing block (27) inside the matching sealing channel (28); the movable guide hole (29) passes through the motor cover (2); and a motor multiple sealing mechanism is installed on the motor cover (2).

2. A multi-sealed motor according to claim 1, characterized in that: 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); the motor shaft (3) passes through a mounting through hole (21) and is mounted on a motor cover (2); 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).

3. A multi-sealed motor according to claim 2, 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).

4. A multi-sealed motor according to claim 3, 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).

5. A multi-sealed motor according to claim 4, 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).

6. A multi-sealed motor according to claim 5, 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).

7. A multi-sealed motor according to claim 6, 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).

8. A multi-sealed motor according to claim 7, 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).

9. A multi-sealed motor according to claim 8, 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).

10. A multi-sealed motor according to claim 9, 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).

Images