Waterproof motor for buried automatic door

Abstract

The utility model discloses a waterproof motor for an underground automatic door, which comprises the components of a cabinet which is provided with a hollow inner wall and a side wall which is provided with an opening; the sealing cover plate covers the opening position of the case; the permanent magnet direct current motor is arranged in the middle of the case; the power unit is arranged at the tail end of the case; the power unit comprises a supporting frame, a conversion wheel, a main shaft and a synchronous wheel, the supporting frame is arranged in the machine box, the conversion wheel is rotationally connected into the machine box and connected with the permanent magnet direct current motor through a synchronous belt, the main shaft is coaxially arranged on one side of the conversion wheel and penetrates through the machine box, and the synchronous wheel is coaxially arranged on the outer ring of the main shaft. Compared with the prior art, the waterproof motor has the following advantages and effects: by arranging the waterproof motor with high sealing performance, a closed space is formed in the case, and water is prevented from entering the case along gaps everywhere, so that the stable work of all components in the case is ensured, and the service life of the whole waterproof motor is ensured.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a waterproof motor for underground automatic doors. Background Art

[0002] Theoretically, automatic sliding doors should be understood as an extension of the concept of automatic doors, which are developed and improved according to human needs. Automatic doors refer to control units that can recognize the action of a person approaching the door (or some kind of entry authorization) as a door opening signal, open the door through a drive system, and automatically close the door after the person leaves, and control the opening and closing process.

[0003] When assembling traditional underground automatic doors, the motor unit is usually buried under the ground. However, since the motor unit does not have good waterproof measures, water can easily penetrate and cause damage to the motor unit, affecting the service life of the motor unit, which needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a waterproof motor for an underground automatic door, which has the effect of improving the waterproof performance.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a waterproof motor for an underground automatic door, comprising:

[0006] The chassis has a hollow inner wall and an opening on the side wall;

[0007] A sealing cover plate, covering the opening of the chassis;

[0008] A permanent magnet DC motor is arranged in the middle of the chassis;

[0009] A power unit is arranged at the rear end of the chassis;

[0010] The power unit includes a support frame, a conversion wheel, a main shaft and a synchronous wheel. The support frame is arranged inside the chassis. The conversion wheel is rotatably connected to the inside of the chassis and is connected to the permanent magnet DC motor through a synchronous belt. The main shaft is coaxially arranged on one side of the conversion wheel and passes through the chassis. The synchronous wheel is coaxially arranged on the outer ring of the main shaft.

[0011] In a preferred example, the utility model can be further configured as follows: a pressure ring surrounding the main shaft is arranged on the chassis, and a sealing oil seal ring is arranged between the pressure ring and the main shaft.

[0012] In a preferred example, the present invention can be further configured as follows: a sealing rubber ring is provided between the pressure ring and the chassis.

[0013] In a preferred example, the utility model can be further configured as follows: the outer wall of the synchronous wheel is provided with a retaining ring bent toward the direction of the pressing ring, and the pressing ring is provided with a groove for the retaining ring to be embedded.

[0014] In a preferred example, the utility model can be further configured as follows: an electromagnetic clutch brake is provided on a side of the conversion wheel away from the main shaft.

[0015] In a preferred example, the utility model can be further configured as follows: a desiccant located beside the electromagnetic clutch brake is arranged on the support frame.

[0016] In a preferred example, the utility model can be further configured as follows: a sealing rubber pad is provided on the inner side of the sealing cover plate to press the opening position of the chassis.

[0017] In a preferred example, the utility model can be further configured as follows: a base is provided at the lower end of the chassis, and sound insulation cotton is provided at the lower end of the base.

[0018] In a preferred example, the present invention can be further configured as follows: a waterproof line clip for the line to pass through is provided at the end of the chassis.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. By setting a highly sealed waterproof motor, a closed space is formed inside the chassis to prevent water from entering the chassis through the gaps everywhere, thereby ensuring the stable operation of all components in the chassis and the service life of the entire waterproof motor;

[0021] 2. By setting a retaining ring on the exposed synchronous wheel to match the pressure ring, the seal between the two is achieved to prevent external water vapor or dust from entering the sealing oil seal ring, thereby improving the waterproof performance and ensuring the stable operation of the main shaft;

[0022] 3. By placing a desiccant with moisture-proof and mildew-proof properties in the chassis, the moisture generated in the chassis can be adsorbed in time to ensure the dryness inside the chassis, thereby ensuring the stable operation of each component;

[0023] 4. By setting sealing pads at the openings of the chassis and waterproof wire clips at the line insertion positions, each opening or hole position of the chassis can be well sealed, ensuring the waterproof performance of the chassis and improving working stability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment;

[0025] Figure 2is a schematic structural diagram of a power unit of an embodiment;

[0026] Figure 3 Schematic diagram of the structure of the conversion wheel and the synchronous wheel of the embodiment.

[0027] Figure numerals: 1. Chassis; 11. Base; 12. Sound insulation cotton; 13. Waterproof wire clip; 14. Pressure ring; 15. Sealing oil seal ring; 16. Sealing rubber ring; 17. Groove; 2. Sealing cover plate; 21. Sealing rubber pad; 3. Permanent magnet DC motor; 4. Power unit; 41. Support frame; 42. Conversion wheel; 43. Main shaft; 44. Synchronous wheel; 45. Synchronous belt; 46. Retaining ring; 47. Electromagnetic clutch brake; 48. Desiccant. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1 As shown, a waterproof motor for an underground automatic door includes a chassis 1, a sealing cover plate 2, a permanent magnet DC motor 3 and a power unit 4.

[0030] like Figure 2 , Figure 3 As shown, the inner wall of the chassis 1 is hollow and the side wall has an opening. The sealing cover plate 2 covers the opening position of the chassis 1. A sealing rubber pad 21 is provided on the inner side of the sealing cover plate 2 to press the opening position of the chassis 1 so as to achieve sealing of the opening position of the chassis 1 and improve the waterproof performance.

[0031] like Figure 2 , Figure 3 As shown, a base 11 is provided at the lower end of the chassis 1, and a sound insulation cotton 12 is provided at the lower end of the base 11 to reduce the noise generated during the working process. A waterproof line clip 13 for the line to pass through is provided at the end of the chassis 1, so that the opening position of the chassis 1 can achieve good sealing, ensure the waterproof performance of the chassis 1, and improve the working stability and service life.

[0032] like Figure 2 , Figure 3 As shown, the permanent magnet DC motor 3 is arranged at the middle position of the chassis 1, and the power unit 4 is arranged at the rear end position of the chassis 1, which is used to connect the automatic door to realize the opening and closing control of the automatic door.

[0033] like Figure 2 , Figure 3 As shown, the power unit 4 includes a support frame 41, a conversion wheel 42, a main shaft 43 and a synchronous wheel 44. The support frame 41 is arranged inside the chassis 1, and the conversion wheel 42 is rotatably connected to the inside of the chassis 1 and connected to the permanent magnet DC motor 3 through a synchronous belt 45.

[0034] like Figure 2 , Figure 3 As shown, the main shaft 43 is coaxially arranged on one side of the conversion wheel 42 and passes through the chassis 1. A pressure ring 14 surrounding the main shaft 43 is arranged on the chassis 1. A sealing oil seal ring 15 is arranged between the pressure ring 14 and the main shaft 43. A sealing rubber ring 16 is arranged between the pressure ring 14 and the chassis 1. The setting of the sealing oil seal ring 15 and the sealing rubber ring 16 is used to increase the sealing and waterproof properties of the connection position.

[0035] like Figure 2 , Figure 3 As shown, the synchronous wheel 44 is coaxially arranged on the outer ring of the main shaft 43, and the outer wall of the synchronous wheel 44 is provided with a retaining ring 46 bent toward the pressure ring 14, and the pressure ring 14 is provided with a groove 17 for the retaining ring 46 to be embedded in, so as to achieve a seal between the two and prevent external water vapor or dust from entering the sealing oil seal ring 15, thereby improving the waterproof performance and ensuring the stable operation of the main shaft 43.

[0036] like Figure 2 , Figure 3 As shown, an electromagnetic clutch brake 47 is provided on the side of the conversion wheel 42 away from the main shaft 43, which is used to control the emergency stop of the synchronous wheel 44 to ensure the stability and safety of the automatic door during operation. A desiccant 48 is provided on the support frame 41 next to the electromagnetic clutch brake 47 to timely absorb the moisture generated in the chassis 1 to ensure the dryness of the inside of the chassis 1, thereby ensuring the stable operation of each component.

[0037] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A waterproof motor for underground automatic doors, characterized in that: include: The chassis (1) has a hollow inner wall and an opening on the side wall; A sealing cover plate (2) covering the opening of the chassis (1); A permanent magnet DC motor (3) is arranged in the middle of the chassis (1); A power unit (4) is arranged at the rear end of the chassis (1); The power unit (4) comprises a support frame (41), a conversion wheel (42), a main shaft (43) and a synchronous wheel (44); the support frame (41) is arranged inside the chassis (1); the conversion wheel (42) is rotatably connected to the inside of the chassis (1) and is connected to the permanent magnet DC motor (3) via a synchronous belt (45); the main shaft (43) is coaxially arranged on one side of the conversion wheel (42) and passes through the chassis (1); and the synchronous wheel (44) is coaxially arranged on the outer ring of the main shaft (43).

2. The waterproof motor for underground automatic door according to claim 1, characterized in that: The chassis (1) is provided with a pressure ring (14) surrounding the main shaft (43), and a sealing oil seal ring (15) is provided between the pressure ring (14) and the main shaft (43).

3. The waterproof motor for underground automatic door according to claim 2, characterized in that: A sealing rubber ring (16) is provided between the pressure ring (14) and the chassis (1).

4. The waterproof motor for underground automatic door according to claim 3, characterized in that: The outer wall of the synchronous wheel (44) is provided with a retaining ring (46) bent toward the direction of the pressing ring (14), and the pressing ring (14) is provided with a groove (17) for the retaining ring (46) to be embedded.

5. The waterproof motor for underground automatic door according to claim 1, characterized in that: An electromagnetic clutch brake (47) is provided on the side of the conversion wheel (42) facing away from the main shaft (43).

6. The waterproof motor for underground automatic door according to claim 5, characterized in that: The support frame (41) is provided with a desiccant (48) located beside the electromagnetic clutch brake (47).

7. The waterproof motor for underground automatic door according to claim 1, characterized in that: A sealing rubber pad (21) is provided on the inner side of the sealing cover plate (2) for pressing the opening position of the chassis (1).

8. The waterproof motor for underground automatic door according to claim 1, characterized in that: A base (11) is provided at the lower end of the chassis (1), and sound insulation cotton (12) is provided at the lower end of the base (11).

9. The waterproof motor for underground automatic door according to claim 1, characterized in that: The end of the chassis (1) is provided with a waterproof line clip (13) for the line to pass through.

Images