Motor sealing structure

Abstract

The utility model discloses a motor sealing structure, which relates to the technical field of motor sealing, and is characterized in that the motor sealing structure comprises a shell, a motor body is arranged in the shell, a fixing ring is fixedly connected to the left side of the outer wall of the shell, a sealing cover is arranged in the fixing ring, and the right side of the sealing cover is attached to the left side of the shell in a sealing manner; a wire holder is fixedly connected to the middle of the left side of the motor body, a power line is fixedly connected to the left side of the wire holder, a limiting sealing mechanism is arranged in a fixing ring, and an elastic sealing mechanism is arranged on the left side of a sealing cover. And the stability and the sealing performance of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor sealing, and more specifically, it relates to a motor sealing structure. Background Art

[0002] A motor is an electromagnetic device that realizes the conversion between mechanical and electrical energy. Common motors can be divided into AC motors and DC motors. Motors are applied in a variety of scenarios and are used even in dust and water. However, traditional motors have the disadvantage of poor connection sealing between the housing and the cover, resulting in dust or moisture easily entering the motor interior from the outside through the connection between the housing and the cover, thus damaging structures such as the internal coils of the motor and reducing the service life of the motor.

[0003] Existing devices mainly use components such as sealing rings to seal and fix the gap between the outer shell and the cover. Most of the existing technologies are similar to a motor housing sealing structure. The structure with the patent publication number CN209462139U includes a housing and a cover. The housing and the cover are connected in a matching manner. A sealing structure is provided at the connection between the housing and the cover. The sealing structure includes a sealing ring, an upper convex ring provided on the top surface of the sealing ring, and a lower convex ring provided at the bottom of the sealing ring. A first embedding groove for the upper convex ring to be embedded is provided on the surface of the cover facing the sealing ring, and a second embedding groove for the lower convex ring to be embedded is provided on the surface of the housing facing the sealing ring. The utility model adopts a sealing structure at the connection between the housing and the cover, increasing the contact area between the sealing structure and the housing and the cover respectively, thereby improving the connection sealing between the housing and the cover. However, there are still areas for optimization in this device.

[0004] Existing devices mainly directly fix and connect the outer shell and the cover through a plug, making it difficult for some devices to stably limit the cover, resulting in some devices being affected by the loosening of bolts and thus affecting the function of the sealing ring. At the same time, there is a certain gap between the power cord and the cover of some devices, making it difficult for some devices to apply stable pressure to the sealing component of the power cord, resulting in difficulty in stably sealing the gap between the power cord and the cover and reducing the working efficiency and practicality of the device. Therefore, in order to solve the above technical problems, this application proposes a motor sealing structure. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a motor sealing structure.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: including an outer shell, a motor body is arranged inside the outer shell. A fixing ring is fixedly connected to the left side of the outer wall of the outer shell. A cover is arranged inside the fixing ring. The right side of the cover is hermetically attached to the left side of the outer shell. A wiring seat is fixedly connected to the middle of the left side of the motor body. A power cord is fixedly connected to the left side of the wiring seat.

[0007] A limiting and sealing mechanism is provided inside the fixed ring. The limiting and sealing mechanism includes a first wedge-shaped ring block. The outer wall of the first wedge-shaped ring block is fixedly connected to the left inner wall of the fixed ring. An elastic sealing mechanism is provided on the left side of the cover. The elastic sealing mechanism includes a sheath. The right side of the sheath is fixedly connected to the middle of the left side of the cover.

[0008] Preferably, a second wedge-shaped ring block is fixedly connected to the outer wall of the cover. The inclined surface of the second wedge-shaped ring block fits with the inclined surface of the first wedge-shaped ring block.

[0009] Preferably, a bolt is inserted in the middle of the left side of the first wedge-shaped ring block. The right end of the bolt penetrates through the first wedge-shaped ring block. A threaded groove corresponding to the bolt is provided in the middle of the second wedge-shaped ring block.

[0010] Preferably, a conical plug is attached to the left inner wall of the cover. The inner wall of the conical plug is fixedly connected to the outer wall of the power cord.

[0011] Preferably, a telescopic cylinder is fixedly connected to the outer ring on the right side of the conical plug. The right end of the telescopic cylinder is fixedly connected to the outer ring on the left side of the wiring seat.

[0012] Preferably, a spring is fixedly connected to the outer ring of the telescopic cylinder on the right side of the conical plug. The right end of the spring is fixedly connected to the left side of the wiring seat.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. In the present utility model, through structures such as the first wedge-shaped ring block, the second wedge-shaped ring block, the bolt, and the threaded groove in the limiting and sealing mechanism, first, the cover drives the second wedge-shaped ring block into the fixed ring. Then, the cover is rotated clockwise. The cover drives the second wedge-shaped ring block to rotate synchronously. The second wedge-shaped ring block is restricted by the first wedge-shaped ring block, causing the cover to slide to the right and press tightly against the sealing ring between the housing. Then, the bolt is passed through the first wedge-shaped ring block and threadedly connected to the threaded groove, realizing the limiting and sealing of the cover. This enables some sealing structures to stably limit the cover, effectively preventing the sealing ring from failing due to bolt loosening in some devices, and improving the stability and practicality of the device.

[0015] 2. In the present utility model, through structures such as the sheath, the conical plug, the telescopic cylinder, and the spring in the elastic sealing mechanism, first, the cover drives the sheath to slide to the right, causing the sheath to sleeve on the outer wall of the conical plug. Then, the sheath drives the conical plug to slide to the right and contract the telescopic cylinder. At the same time, the conical plug compresses the spring, causing the spring to exert a leftward thrust on the conical plug, realizing the elastic sealing of the power cord. This enables some devices to exert a stable pressure on the sealing component, facilitating the stable sealing of the gap between the power cord and the cover, and improving the sealing performance and practicality of the device. Brief Description of the Drawings

[0016] The drawings described herein are provided to further understand the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is the front side view three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is the front view cross-section three-dimensional structure diagram of the present utility model;

[0019] Figure 3 is the partial structure side view cross-section three-dimensional structure diagram of the cover and the limit sealing mechanism of the present utility model;

[0020] Figure 4 is the partial structure top view cross-section three-dimensional structure diagram of the terminal block and the pressure sealing mechanism of the present utility model.

[0021] 11. Outer shell; 12. Motor body; 13. Fixed ring; 14. Cover; 15. Terminal block; 16. Power cord; 2. Limit sealing mechanism; 21. First wedge-shaped ring block; 22. Second wedge-shaped ring block; 23. Bolt; 24. Thread groove; 3. Elastic sealing mechanism; 31. Sheath; 32. Conical plug; 33. Telescopic cylinder; 34. Spring. Detailed Description of the Preferred Embodiments

[0022] As Figures 1-4 shown, the present utility model provides a motor sealing structure, including an outer shell 11. The inside of the outer shell 11 is provided with a motor body 12. The left side of the outer wall of the outer shell 11 is fixedly connected with a fixed ring 13. The inside of the fixed ring 13 is provided with a cover 14. The right side of the cover 14 is hermetically attached to the left side of the outer shell 11. The middle part of the left side of the motor body 12 is fixedly connected with a terminal block 15. The left side of the terminal block 15 is fixedly connected with a power cord 16;

[0023] Inside the fixed ring 13, a limit and sealing mechanism 2 is provided. The limit and sealing mechanism 2 includes a first wedge-shaped ring block 21. The outer wall of the first wedge-shaped ring block 21 is fixedly connected to the left side of the inner wall of the fixed ring 13. A second wedge-shaped ring block 22 is fixedly connected to the outer wall of the cover 14. The inclined surface of the second wedge-shaped ring block 22 fits with the inclined surface of the first wedge-shaped ring block 21. Through this design, the second wedge-shaped ring block 22 is used to push the cover 14 to the right in cooperation with the first wedge-shaped ring block 21, so that the sealing ring between the cover 14 and the outer shell 11 is squeezed. A bolt 23 is inserted in the middle of the left side of the first wedge-shaped ring block 21. The right end of the bolt 23 penetrates through the first wedge-shaped ring block 21. A threaded groove 24 corresponding to the bolt 23 is opened in the middle of the second wedge-shaped ring block 22. Through this design, the bolt 23 is used to limit the second wedge-shaped ring block 22, effectively preventing the bolt 23 from loosening and causing the sealing ring to fail.

[0024] An elastic sealing mechanism 3 is provided on the left side of the cover 14. The elastic sealing mechanism 3 includes a sheath 31. The right side of the sheath 31 is fixedly connected to the middle of the left side of the cover 14. Preferably, a conical plug 32 is attached to the left side of the inner wall of the cover 14. The inner wall of the conical plug 32 is fixedly connected to the outer wall of the power cord 16. Through this design, the conical plug 32 is used to seal the gap between the power cord 16 and the cover 14 in cooperation with the sheath 31. A telescopic cylinder 33 is fixedly connected to the outer ring of the right side of the conical plug 32. The right end of the telescopic cylinder 33 is fixedly connected to the outer ring of the left side of the wiring seat 15. Through this design, the conical plug 32 is stably slid by the push of the sheath 31. A spring 34 is fixedly connected to the outer ring of the right side of the conical plug 32 located in the telescopic cylinder 33. The right end of the spring 34 is fixedly connected to the left side of the wiring seat 15. Through this design, the conical plug 32 compresses the spring 34 during the process of sliding to the right, so that the compressed spring 34 exerts a leftward thrust on the conical plug 32, thereby improving the sealing performance between the conical plug 32 and the sheath 31.

[0025] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technical personnel in the industry can smoothly implement the present invention according to the illustrations in the specification and the above; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A motor sealing structure, comprising a housing (11), characterized in that: A motor body (12) is arranged inside the housing (11); a fixing ring (13) is fixedly connected to the left side of the outer wall of the housing (11); a sealing cover (14) is provided inside the fixing ring (13); the right side of the sealing cover (14) is sealed and attached to the left side of the housing (11); a wiring seat (15) is fixedly connected to the middle of the left side of the motor body (12); and a power line (16) is fixedly connected to the left side of the wiring seat (15); A position limiting sealing mechanism (2) is provided inside the fixing ring (13), and the position limiting sealing mechanism (2) comprises a first wedge-shaped ring block (21), and the outer wall of the first wedge-shaped ring block (21) is fixedly connected to the left side of the inner wall of the fixing ring (13). An elastic sealing mechanism (3) is provided on the left side of the sealing cover (14), and the elastic sealing mechanism (3) comprises a sleeve (31), and the right side of the sleeve (31) is fixedly connected to the middle part of the left side of the sealing cover (14).

2. A motor sealing structure according to claim 1, characterized in that: A second wedge-shaped ring block (22) is fixedly connected to the outer wall of the sealing cover (14), and the inclined surface of the second wedge-shaped ring block (22) is matched with the inclined surface of the first wedge-shaped ring block (21).

3. A motor sealing structure according to claim 2, characterized in that: A bolt (23) is inserted into the middle of the left side of the first wedge-shaped ring block (21), and the right end of the bolt (23) passes through the first wedge-shaped ring block (21). A thread groove (24) corresponding to the bolt (23) is opened in the middle of the second wedge-shaped ring block (22).

4. The motor sealing structure according to claim 1, characterized in that: A truncated cone plug (32) is attached to the left side of the inner wall of the sealing cover (14), and the inner wall of the truncated cone plug (32) is fixedly connected to the outer wall of the power cord (16).

5. A motor sealing structure according to claim 4, characterized in that: The right outer ring of the truncated cone plug (32) is fixedly connected to a telescopic cylinder (33), and the right end of the telescopic cylinder (33) is fixedly connected to the left outer ring of the wiring seat (15).

6. A motor sealing structure according to claim 5, characterized in that: The right side of the truncated cone plug (32) is located on the outer ring of the telescopic cylinder (33) and is fixedly connected to a spring (34), and the right end of the spring (34) is fixedly connected to the left side of the wiring seat (15).

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