A sealed low-noise explosion-proof motor

Abstract

The present invention relates to the technical field of explosion-proof motors, and discloses a sealed low-noise explosion-proof motor, comprising a body, a sealing sleeve fixedly connected to the top of the body, an outer shell arranged inside the sealing sleeve, an inner shell fixedly connected to the inside of the sealing sleeve, a locking ring slidably connected to the outside of the inner shell, a connecting piece comprising an initial position and a setting position, when the connecting piece is in the initial position, the outer shell and the wiring tube plate are fixed by the locking ring and the locking block respectively, when the connecting piece is in the setting position, the outer shell and the wiring tube plate are unlocked, and the separation is completed at this time, and the outer shell can be rotated to adjust the angle. By simply operating the upper and lower positions of the connecting piece, the outer shell and the wiring tube plate can be quickly unlocked and re-locked without dismantling the overall structure, effectively avoiding the stagnation of the production line caused by the direction adjustment of the junction box, and the angular position of the outer shell can be quickly adjusted to adapt to complex working environments and meet the changing equipment layout requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof motors, and in particular to a sealed low-noise explosion-proof motor. Background Art

[0002] Explosion-proof motors are special motors used in hazardous environments such as flammable and explosive gases and dust. Through special structural design and manufacturing processes, they have low noise and explosion-proof properties, effectively preventing electric sparks and high temperatures generated inside the motor from causing external explosions, ensuring safe and reliable operation in hazardous areas. They are widely used in many industries such as petrochemicals and coal.

[0003] However, in the prior art, the junction box of the explosion-proof motor is a component that connects the explosion-proof motor and the power supply. Its structure is mainly composed of a terminal plate, an outer shell and a cover plate. The bottom of the outer shell is placed in the sealing sleeve at the top of the motor. It is fixed in the sealing sleeve by screwing screws into the sealing sleeve to achieve stability and ensure the sealing of the outer shell. The terminal plate is connected to the cable and fixed in the outer shell by screws. The outer shell is then sealed with a cover plate. In the mining working face under the coal mine, the space is narrow and various facilities such as mining equipment are closely intertwined, which severely compresses the working space. As the mining process continues to advance, the equipment layout must also change dynamically, causing the cable connection position to change. At this time, facing the need to change the direction of the junction box, the junction box must first be removed from the motor as a whole, so three disassembly and assembly operations are required, namely, the top plate and the terminal plate. In order to dismantle it, it is necessary to pull the terminal plate upwards in order to reach and remove the screws used to fix it inside the outer shell before the outer shell angle can be rotated and adjusted. After the rotation adjustment, it is necessary to install it step by step, which is very inconvenient and affects the progress of work. In addition, the lighting conditions underground are extremely dim, and the light provided by the lighting equipment is limited. Coupled with the narrow operating space, the removed screws are easily lost and need to be carefully stored. At the same time, it is difficult for workers to quickly find the corresponding screws and screw installation positions, as well as the fulcrum of the tool, which increases the time required for disassembly and assembly, resulting in the production line being unable to work in time, affecting subsequent operations. At the same time, the angle adjustment of the outer shell will be limited by the connection point between the outer shell and the sealing sleeve, so that the junction box of the explosion-proof motor can only be rotated ninety degrees, which is difficult to meet the complex and changeable equipment layout requirements of the coal mine, resulting in poor flexibility in the direction adjustment of the junction box.

[0004] To this end, a sealed, low-noise, explosion-proof motor is proposed, which enables the wiring position to be quickly adjusted and the layout to be adjusted efficiently. Summary of the Invention

[0005] The object of the present invention is to provide a sealed low-noise explosion-proof motor to solve the problem that the wiring position of the explosion-proof motor cannot be quickly adjusted according to layout requirements.

[0006] The technical solution of the present invention is: a sealed low-noise explosion-proof motor, comprising a body, a sealing sleeve fixedly connected to the top of the body, an outer shell arranged inside the sealing sleeve, an inner shell fixedly connected to the inside of the sealing sleeve, a locking ring slidably connected to the outside of the inner shell, a shaft sleeve fixedly connected between the outer shell and the inner shell, a turntable rotatably connected to the inside of the outer shell, a wiring tube plate fixedly connected to the inside of the sealing sleeve, a connecting sleeve and a locking block slidably connected to the inside of the outer shell, a cover plate clamped at the top of the outer shell, an outer seal fixedly connected to the outside of the sealing sleeve, a connecting piece slidably connected to the inside of the sealing sleeve, and a rotating piece rotatably connected to the outer seal, the locking ring and the inner shell are both located below the outer shell, the connecting piece comprises an initial position and a setting position, when the connecting piece is in the initial position, the outer shell and the wiring tube plate are fixed respectively by the locking ring and the locking block, and when the connecting piece is in the setting position, the locking of the outer shell and the wiring tube plate is released.

[0007] Furthermore, an outer wire tube is provided on the outside of the outer shell, a plurality of indicator marks are provided at equal angles on the outer wall of the outer shell, a guide plate is fixedly connected to the inside of the outer shell, a plurality of circular holes are provided at equal angles on the bottom of the outer shell, a first square notch is provided on the side of the outer shell close to the connecting piece, and a plurality of elastic semicircles are provided at equal angles on the outer shell.

[0008] Furthermore, a guide bar and a support bar are provided inside the inner shell, and a second square notch is opened on the side of the inner shell close to the connecting piece. The first square notch and the second square notch are the same in size and shape, and the top of the support bar is always in contact with the bottom of the outer shell.

[0009] Furthermore, the locking ring includes a circular ring slidably connected to the outside of the guide bar, and multiple circular bars arranged at equal angles and fixedly connected to the top of the circular ring. A square groove is opened on the circular ring, and the circular bars are the same size and shape as the circular hole.

[0010] Furthermore, the top of the wiring tube plate is located above the guide plate, and a plurality of locking grooves are provided at equal angles on the wiring tube plate, and the number of the indicator marks, round holes, elastic semicircles, round bars and locking grooves is equal.

[0011] Furthermore, straight slots are opened at equal angles on the guide plate, the turntable is located below the guide plate, guide bevels are opened at equal angles on the turntable, a pressure bevel is opened on the outer wall of the turntable near the connecting piece, the bottom of the locking block is circular and passes through the straight slots and the guide bevel, and the number of the locking blocks, straight slots and guide bevels is equal.

[0012] Furthermore, the connecting member includes a straight plate slidably connected to the inside of the outer envelope, a short plate fixedly connected to the top of the straight plate, and a long plate fixedly connected to the bottom of the straight plate. An arc groove is opened on the straight plate, one end of the short plate is located inside the sleeve, and the long plate passes through the second square notch and the square groove.

[0013] Furthermore, the rotating member includes a handle rotatably connected to the inside of the outer sleeve, and a convex shaft fixedly connected to one side of the rotating member, the convex shaft is located inside the arc groove, and a screw is connected between the outer sleeve and the handle.

[0014] Furthermore, the sleeve includes an outer ring slidably connected to the outer shell, and an inner ring fixedly connected to the outer ring, the inner ring is located inside the outer shell, the outer ring is close to the first square notch, extends to the interior of the outer shell and is connected to the inner ring, and a circular shaft is provided on the inner side of the inner ring, and the circular shaft is located inside the pressure inclined groove.

[0015] Furthermore, a header is provided on the outside of the sealing sleeve, and a plurality of semicircular grooves are provided at equal angles on the top of the sealing sleeve, and the number of the semicircular grooves is the same as the number of the elastic semicircles.

[0016] Beneficial effects of the present invention:

[0017] 1. The outer shell and the wiring tube plate can be quickly unlocked and relocked by simply operating the up and down positions of the connector without dismantling the entire structure. The operation is simple and intuitive, which reduces the difficulty of operation for workers, saves operation time, and significantly improves work efficiency. It effectively avoids production line stagnation caused by adjustment of the direction of the junction box. The angle position of the outer shell can be quickly adjusted to adapt to complex working environments and meet changing equipment layout requirements.

[0018] 2. Effective locking is achieved by the close fit between the locking ring and the bottom of the outer shell, and the insertion of multiple locking blocks into the locking grooves of the wiring tube plate. During long-term use, it is not easy to malfunction due to aging and other faults. It can continuously and stably ensure the normal operation of the motor, provide solid protection for the reliable operation of the equipment in harsh environments, prevent electronic equipment from being susceptible to electromagnetic interference, moisture, dust, etc., reduce environmental impact, and improve the applicability of the equipment in different harsh environments.

[0019] 3. Workers only need to remove the screws between the outer cover and the handle and turn the handle to unlock and lock. This process can be operated without any learning. The equipment relies on a mechanical structure, which makes troubleshooting simple and can be maintained using existing maintenance methods. The maintenance cost is low and it can be quickly combined with the existing motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0021] Figure 2 A top view of the overall structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 Cross-sectional view at AA in the middle;

[0023] Figure 4 This is a schematic structural diagram of the locking block of the present invention;

[0024] Figure 5 This is a structural diagram of the wiring tube plate of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the outer shell of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the turntable of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the locking ring of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the set of the present invention;

[0029] Figure 10 For the present invention Figure 5 A magnified schematic diagram of point B in the middle;

[0030] Figure 11 For the present invention Figure 9 Enlarged schematic diagram of point C in the middle.

[0031] In the picture:

[0032] 1. Body; 2. Sealing sleeve; 21. Header; 22. Semicircular groove; 3. Outer shell; 31. Outer wire tube; 32. Indicator; 33. Guide plate; 331. Straight notch; 34. Round hole; 35. First square notch; 36. Elastic semicircle; 4. Inner shell; 41. Guide bar; 42. Support bar; 43. Second square notch; 5. Locking ring; 51. Round ring; 511. Square groove; 52. Round bar; 6. Bushing; 7. Turntable; 71. Guide bevel; 72. Pressure bevel; 8. Wiring tube plate; 81. Locking groove; 9. Connecting sleeve; 91. Outer collar; 92. Inner collar; 921. Round shaft; 10. Locking block; 11. Cover; 12. Outer sleeve; 13. Connecting piece; 131. Straight plate; 130. Arc groove; 132. Short plate; 133. Long plate; 14. Rotating piece; 141. Turning handle; 142. Protruding shaft. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Reference Figures 1-11 , an embodiment of the present invention provides a sealed low-noise explosion-proof motor, including a body 1, a sealing sleeve 2 fixedly connected to the top of the body 1, an outer shell 3 arranged inside the sealing sleeve 2, an inner shell 4 fixedly connected to the inside of the sealing sleeve 2, a locking ring 5 slidably connected to the outside of the inner shell 4, a shaft sleeve 6 fixedly connected between the outer shell 3 and the inner shell 4, a turntable 7 rotatably connected to the inside of the outer shell 3, a wiring tube plate 8 fixedly connected to the inside of the sealing sleeve 2, a connecting sleeve 9 and a locking block 10 slidably connected to the inside of the outer shell 3, a cover plate 11 clamped on the top of the outer shell 3, an outer sleeve 12 fixedly connected to the outside of the sealing sleeve 2, a connecting member 13 slidably connected to the inside of the sealing sleeve 2, and a rotating member 14 rotatably connected to the outer sleeve 12, a locking ring 5 The outer shell 3 and the inner shell 4 are both located below the outer shell 3. The connecting piece 13 includes an initial position and a setting position. When the connecting piece 13 is in the initial position, the outer shell 3 and the wiring tube plate 8 are fixed respectively by the locking ring 5 and the locking block 10. When the connecting piece 13 is in the setting position, the outer shell 3 and the wiring tube plate 8 are unlocked. At this time, the separation is completed, and the outer shell 3 can be rotated to adjust the angle. When the angle of the outer shell 3 needs to be adjusted, the worker can drive the connecting piece 13 to move by operating the rotating piece 14, thereby unlocking the outer shell 3 and the wiring tube plate 8, and then rotating it. According to the actual equipment layout requirements, the outer shell 3 can be flexibly transformed into multiple angles, which improves adaptability to complex environments, is convenient and labor-saving to operate, and ensures reasonable cable connection and normal operation of the equipment.

[0035] Specifically, by moving the connecting member 13 from the initial position to the setting position, the outer shell 3 and the wiring tube plate 8 can be unlocked, and by moving it in the opposite direction, the connecting member 13 is moved from the setting position to the initial position, and the outer shell 3 and the wiring tube plate 8 can be locked. In addition, moving the connecting member 13 from the initial position to the setting position is a downward movement, and moving the connecting member 13 from the setting position to the initial position is an upward movement.

[0036] It can be understood that the body 1 is made of high-stability steel to provide a solid support foundation for the motor as a whole. At the same time, rubber composite materials are placed at the joints of the components to form a multi-layer sealing structure, which effectively reduces the vibration and noise during the operation of the motor. The top of the wiring tube plate 8 is a wiring terminal plate, and the bottom of the wiring terminal plate is a hard pipe. The cables in the body 1 are located in the pipe and connected to the wiring terminal plate. The hard pipe and the wiring terminal plate are used to form a wiring tube plate 8. The hard pipe provides support for the wiring terminal plate, so that the wiring terminal plate does not need to be completely supported by the outer shell 3.

[0037] Reference Figure 3-Figure 7The outside of the outer shell 3 is provided with an outer wire tube 31, which can ensure the smooth passage of the cable, and at the same time a sealing structure is installed to prevent the invasion of external impurities. The outer wall of the outer shell 3 is provided with multiple indicator marks 32 at equal angles, and the inside of the outer shell 3 is fixedly connected to a guide plate 33. The bottom of the outer shell 3 is provided with multiple circular holes 34 at equal angles, and the side of the outer shell 3 close to the connecting piece 13 is provided with a first square notch 35. The outer shell 3 is provided with multiple elastic semicircles 36 at equal angles.

[0038] The surface of the indicator mark 32 is affixed with a fluorescent yellow reflective sheet to better attract the operator's attention.

[0039] Reference Figure 3-Figure 8 The interior of the inner shell 4 is provided with a guide bar 41 and a support bar 42. A second square notch 43 is opened on the side of the inner shell 4 close to the connecting piece 13. The first square notch 35 and the second square notch 43 are the same size and shape. The top of the support bar 42 is always in contact with the bottom of the outer shell 3, so that the bottom of the outer shell 3 is always supported by the support bar 42 and will not move downward, effectively preventing the outer shell 3 from moving downward due to its own weight, motor operation vibration or external impact force. At the same time, the shaft sleeve 6 fixedly connected between the outer shell 3 and the inner shell 4 is fixed so that the outer shell 3 and the inner shell 4 are tightly connected, and the outer shell 3 can rotate.

[0040] Reference Figure 3-Figure 8 The locking ring 5 includes a circular ring 51 that is slidably connected to the outside of the guide bar 41, and a plurality of circular bars 52 that are arranged at equal angles and fixedly connected to the top of the circular ring 51. The circular ring 51 is restricted by the guide bar 41 and can only move up and down. A square groove 511 is provided on the circular ring 51. The circular bar 52 is the same size and shape as the circular hole 34. When the connecting member 13 is in the initial position, the circular bar 52 is located inside the circular hole 34, that is, the circular bar 52 is like the tenon in the mortise and tenon structure, and fits tightly with the circular hole 34. At this time, the outer shell 3 will be fixed by multiple circular bars 52, limiting the rotation of the outer shell 3, and effectively preventing the outer shell 3 from shaking or displacing unnecessary during the operation of the motor when there is no need to adjust the angle, thereby ensuring the stability of the entire motor structure.

[0041] Reference Figure 2-Figure 7The top of the wiring tube plate 8 is located above the guide plate 33. A plurality of locking grooves 81 are provided at equal angles on the wiring tube plate 8. The number of the indicator mark 32, the circular hole 34, the elastic semicircle 36, the round bar 52 and the locking groove 81 is equal, and the number can be twelve. Therefore, the equal angle degrees are also the same, all of which are thirty degrees. Therefore, when adjusting the angle of the outer shell 3, only thirty degrees can be adjusted at a time. If more angles of the outer shell 3 are required, the number of corresponding components needs to be increased. At the same time, when the outer shell 3 rotates, the turntable 7 and the lock plate 7 located inside the outer shell 3 The fixed block 10 will rotate synchronously, and the wiring tube plate 8 will not rotate. When the locking block 10 is located in the locking groove 81, the wiring tube plate 8 will be locked and cannot move. When you want to adjust the angle of the outer shell 3, you first need to separate the locking block 10 from the wiring tube plate 8. In addition, locking grooves 81 are provided on the upper and lower sides of the top of the wiring tube plate 8, and the top of the locking block 10 is C-shaped and the bottom is a circular shaft, so that the wiring tube plate 8 can be fixed from the upper and lower positions, so that the wiring tube plate 8 is locked by multiple locking blocks 10.

[0042] Reference Figure 2-Figure 8 A straight slot 331 is opened at an equal angle on the guide plate 33, the turntable 7 is located below the guide plate 33, a guide inclined groove 71 is opened at an equal angle on the turntable 7, and a pressure inclined groove 72 is opened on the outer wall of the turntable 7 near the connecting piece 13. The bottom of the locking block 10 is circular and passes through the straight slot 331 and the guide inclined groove 71. The number of the locking block 10, the straight slot 331 and the guide inclined groove 71 is equal and can be four.

[0043] Specifically, when the connecting member 13 moves up and down, it will squeeze the turntable 7 through the connecting sleeve 9. When the pressure-bearing inclined groove 72 of the turntable 7 is squeezed by the connecting sleeve 9, the turntable 7 rotates, that is, when the connecting member 13 moves down, the turntable 7 can rotate forward, and conversely, when the connecting member 13 moves up, the turntable 7 reverses. Since the bottom of the locking block 10 is located in the guide inclined groove 71, the rotating turntable 7 will push the bottom of the locking block 10, causing the locking block 10 to move, and the locking block 10 is simultaneously restricted by the straight slot 331, so that the four locking blocks 10 move along the path of the straight slot 331, thereby controlling the four locking blocks 10 to lock the wiring tube plate 8.

[0044] Reference Figure 3-10The connecting member 13 includes a straight plate 131 slidably connected to the inside of the outer envelope 12, a short plate 132 fixedly connected to the top of the straight plate 131, and a long plate 133 fixedly connected to the bottom of the straight plate 131. An arc groove 130 is opened on the straight plate 131, one end of the short plate 132 is located inside the sleeve 9, and the long plate 133 passes through the second square slot 43 and the square slot 511. When the straight plate 131 moves up and down, it will synchronously drive the short plate 132 and the long plate 133, and then the long plate 133 pulls the ring 51 to move synchronously. At the same time, the long plate 133 passes through the first square slot 35, and the short plate 132 pulls the sleeve 9 to move. When the long plate 133 moves, it can only move up and down within the second square slot 43 and the first square slot 35. The second square slot 43 and the first square slot 35 are used to restrict the long plate 133, further making it possible for the long plate 133 and the straight plate 131 to only move up and down.

[0045] Reference Figure 3-10 The rotating member 14 includes a turning handle 141 rotatably connected to the inside of the outer sleeve 12, and a convex shaft 142 fixedly connected to one side of the rotating member 14. The convex shaft 142 is located inside the arc groove 130. A screw is connected between the outer sleeve 12 and the turning handle 141, and the turning handle 141 is fixed by the screw. When the screw is removed, the turning handle 141 is rotated to rotate the convex shaft 142, and the convex shaft 142 is located inside the arc groove 130, so that the straight plate 131 is pressed and moved. The direction of rotation of the turning handle 141 controls the movement direction of the straight plate 131, and the straight plate 131 also moves up and down in the corresponding direction. The up and down movement of the straight plate 131 synchronously drives the short plate 132 and the long plate 133, so that the connecting sleeve 9 and the locking ring 5 move up and down as a whole, and when the ring 51 and the top round bar 52 move down, the round bar 52 separates from the round hole 34, thereby releasing the lock of the outer shell 3.

[0046] In addition, the outer sealing sleeve 12 has the same shape as the outer contact surface of the outer shell 3 and the connecting sleeve 9, thereby ensuring a sufficient sealing effect.

[0047] Reference Figure 3-Figure 11 The connecting sleeve 9 includes an outer ring 91 that is slidably connected to the outer shell 3, and an inner ring 92 that is fixedly connected to the outer ring 91. The inner ring 92 is located inside the outer shell 3. The outer ring 91 is close to the first square notch 35 and extends to the interior of the outer shell 3 and is connected to the inner ring 92. A circular shaft 921 is provided on the inner side of the inner ring 92, and the circular shaft 921 is located inside the pressure inclined groove 72.

[0048] Specifically, when the outer shell 3 rotates, the internal structure is driven to move, and the outer ring 91 and the inner ring 92 are driven to rotate, so that when the outer shell 3 adjusts its position, the short plate 132 can always be located in the outer ring 91.

[0049] Reference Figures 1-11, a header 21 is provided on the outside of the sealing sleeve 2. Observe whether the header 21 is symmetrical with the indicator mark 32 to ensure accurate locking of the outer shell 3 and the wiring tube plate 8. A plurality of semicircular grooves 22 are provided at equal angles on the top of the sealing sleeve 2. The number of semicircular grooves 22 and the elastic semicircle 36 is the same, and the elastic semicircle 36 is usually located in the semicircular groove 22. When the outer shell 3 is rotated, the elastic semicircle 36 will move synchronously, so that the outer shell 3 is subjected to resistance during rotation until the elastic semicircle 36 is squeezed and deformed by the sealing sleeve 2. Every time the outer shell 3 rotates thirty degrees, the elastic semicircle 36 will be re-assembled with the semicircular groove 22, which can significantly increase the resistance of the outer shell 3 during rotation. At this time, it is necessary to break through this resistance and squeeze and deform the elastic semicircle 36 to further achieve accurate locking of the outer shell 3 and the wiring tube plate 8.

[0050] The working principle of the present invention is as follows: during the normal operation stage of the motor, the header 21 on the outside of the sealing sleeve 2 is aligned with the indicator mark 32 on the outside of the outer shell 3, and the connecting member 13 is in the initial position as a whole. At this time, the straight plate 131 is in a higher position, and the turn handle 141 is locked. The long plate 133 is tightly matched with the square groove 511 of the ring 51, and the round bar 52 is fixed in the circular hole 34 at the bottom of the outer shell 3, firmly fixing the outer shell 3 from the bottom. At the same time, under the squeezing of the turntable 7, the locking block 10 is located in the locking groove 81 of the wiring tube plate 8, locking the wiring tube plate 8 so that it cannot move. In addition, the elastic semicircle 36 is located in the semicircular groove 22 at the top of the sealing sleeve 2, and the two fit tightly.

[0051] When the angle of the outer shell 3 needs to be adjusted, the operator first needs to remove the screws connecting the outer sleeve 12 and the turning handle 141, and then turn the turning handle 141. As the turning handle 141 rotates, the convex shaft 142 on one side of the turning handle 141 pushes the straight plate 131 to move downward. When the straight plate 131 moves downward, it synchronously drives the short plate 132 and the long plate 133. The long plate 133 pulls the ring 51 downward, so that the round bar 52 is separated from the circular hole 34, and the fixation on the bottom of the outer shell 3 is released, and the short plate 132 synchronously pulls the outer ring 91 downward, and the outer ring 91 drives the inner ring 92 and the circular shaft 921 thereon to move synchronously, and the circular shaft 921 is used to squeeze the compressed inclined groove 72, prompting the turntable 7 to rotate. Since the bottom of the locking block 10 is located in the guide inclined groove 71 of the turntable 7 and is restricted by the straight notch 331 on the guide plate 33, the rotation of the turntable 7 pushes the locking block 10 to move back along the straight notch 331 path, so that the locking block 10 is separated from the locking groove 81 on the wiring tube plate 8, thereby releasing the lock on the wiring tube plate 8. At this time, the outer shell 3 and the wiring tube plate 8 are both in the unlocked state, and the outer shell 3 can be rotated. The operator can conveniently rotate and adjust the angle of the outer shell 3 according to the indicator 32. The rotation angle of each time is determined according to the requirements of the component, that is, the single rotation angle of the present invention is thirty degrees to achieve precise angle adjustment.

[0052] When the outer shell 3 is adjusted to the required angle, it is necessary to align the header 21 outside the sealing sleeve 2 with the indicator mark 32 outside the outer shell 3. At this time, the operator rotates the handle 141 in the opposite direction, and the convex shaft 142 pushes the straight plate 131 upward in the arc groove 130. The straight plate 131 drives the short plate 132 and the long plate 133 to move upward. The long plate 133 pulls the ring 51 upward, so that the round bar 52 is reinserted into the circular hole 34 and the outer shell 3 is fixed from the bottom again. At the same time, the entire sleeve 9 moves upward under the pull of the short plate 132, and its circular shaft 921 reversely squeezes the compressed inclined groove 72, causing the turntable 7 to rotate in the opposite direction. The reverse rotation of the turntable 7 passes through the guide inclined groove 71, pushing the locking block 10 along the straight notch 331 to move toward the position of the wiring tube plate 8, so that the locking block 10 re-enters the locking groove 81 on the wiring tube plate 8 and locks the wiring tube plate 8 again.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sealed low-noise explosion-proof motor, comprising a body (1), characterized in that: The machine body also includes a sealing sleeve (2) fixedly connected to the top of the machine body (1), an outer shell (3) arranged inside the sealing sleeve (2), an inner shell (4) fixedly connected to the inside of the sealing sleeve (2), a locking ring (5) slidably connected to the outside of the inner shell (4), a shaft sleeve (6) fixedly connected between the outer shell (3) and the inner shell (4), a turntable (7) rotatably connected to the inside of the outer shell (3), a wiring tube plate (8) fixedly connected to the inside of the sealing sleeve (2), a connecting sleeve (9) and a locking block (10) slidably connected to the inside of the outer shell (3), a cover plate (11) clamped on the top of the outer shell (3), a fixed connecting sleeve (9), and a locking block (10) fixedly connected to the inside of the outer shell (3). An outer sealing sleeve (12) connected to the outside of the sealing sleeve (2), a connecting member (13) slidably connected to the inside of the sealing sleeve (2), and a rotating member (14) rotatably connected to the outer sealing sleeve (12), the locking ring (5) and the inner sleeve (4) are both located below the outer sleeve (3), the connecting member (13) includes an initial position and a setting position, when the connecting member (13) is located at the initial position, the outer sleeve (3) and the wiring tube plate (8) are fixed by the locking ring (5) and the locking block (10), and when the connecting member (13) is located at the setting position, the outer sleeve (3) and the wiring tube plate (8) are unlocked; The outer shell (3) is provided with an outer wire tube (31) on the outside, a plurality of indicator marks (32) are provided on the outer wall of the outer shell (3) at equal angles, a guide plate (33) is fixedly connected to the inside of the outer shell (3), a plurality of circular holes (34) are provided at equal angles on the bottom of the outer shell (3), a first square notch (35) is provided on a side of the outer shell (3) close to the connecting member (13), and a plurality of elastic semicircles (36) are provided on the upper part of the outer shell (3); The inner shell (4) is provided with a guide bar (41) and a support bar (42), and a second square notch (43) is provided on a side of the inner shell (4) close to the connecting piece (13). The first square notch (35) and the second square notch (43) are of the same size and shape, and the top of the support bar (42) is always in contact with the bottom of the outer shell (3); The locking ring (5) comprises a circular ring (51) slidably connected to the outside of the guide bar (41), and a plurality of circular bars (52) arranged at equal angles and fixedly connected to the top of the circular ring (51), wherein a square groove (511) is formed on the circular ring (51), and the circular bar (52) has the same size and shape as the circular hole (34); The top of the wiring tube plate (8) is located above the guide plate (33), and a plurality of locking grooves (81) are provided on the wiring tube plate (8) at equal angles, and the number of the indicator mark (32), the circular hole (34), the elastic semicircle (36), the round bar (52) and the locking groove (81) is equal; The guide plate (33) is provided with a straight slot (331) at an equal angle, the turntable (7) is located below the guide plate (33), the turntable (7) is provided with a guide bevel (71) at an equal angle, the outer wall of the turntable (7) is provided with a pressure bevel (72) near the connecting piece (13), the bottom of the locking block (10) is circular and passes through the straight slot (331) and the guide bevel (71), and the number of the locking block (10), the straight slot (331) and the guide bevel (71) is equal; The connecting member (13) includes a straight plate (131) slidably connected to the interior of the outer envelope (12), a short plate (132) fixedly connected to the top of the straight plate (131), and a long plate (133) fixedly connected to the bottom of the straight plate (131). An arc groove (130) is provided on the straight plate (131). One end of the short plate (132) is located inside the connecting sleeve (9). The long plate (133) passes through the second square notch (43) and the square groove (511).

2. The sealed low-noise explosion-proof motor according to claim 1, characterized in that: The rotating member (14) comprises a turning handle (141) rotatably connected to the interior of the outer envelope (12), and a convex shaft (142) fixedly connected to one side of the rotating member (14), wherein the convex shaft (142) is located inside the arc groove (130), and a screw is connected between the outer envelope (12) and the turning handle (141).

3. The sealed low-noise explosion-proof motor according to claim 1, characterized in that: The connecting sleeve (9) includes an outer ring (91) slidably connected to the outer shell (3), and an inner ring (92) fixedly connected to the outer ring (91), wherein the inner ring (92) is located inside the outer shell (3), and the outer ring (91) is close to the first square notch (35) and extends to the inside of the outer shell (3) to connect with the inner ring (92), and a circular shaft (921) is provided on the inner side of the inner ring (92), and the circular shaft (921) is located inside the pressure-bearing inclined groove (72).

4. The sealed low-noise explosion-proof motor according to claim 1, characterized in that: The sealing sleeve (2) is provided with a header (21) on the outside, and a plurality of semicircular grooves (22) are provided at equal angles on the top of the sealing sleeve (2), and the number of the semicircular grooves (22) is the same as the number of the elastic semicircles (36).

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