Pull rope traction motor and electric umbrella

Abstract

The utility model provides a pull rope traction motor and an electric umbrella, the pull rope traction motor comprises a housing, a motor body arranged at one end of the housing, a speed reducing mechanism arranged in the housing, and an output mechanism used for pulling a pull rope, the output mechanism is arranged at the other end of the housing, and the output end of the motor body is connected with the speed reducing mechanism. The speed reducing mechanism is connected with the output mechanism, the speed reducing mechanism is a two-stage planetary speed reducing mechanism, an output shaft of the speed reducing mechanism is connected with an output gear, the output mechanism comprises a connecting shaft arranged on the inner side of the other end of the shell, a driving gear and a grooved wheel, the driving gear and the grooved wheel are coaxially arranged on the connecting shaft, and the output gear is meshed with the driving gear. According to the pull rope traction motor provided by the utility model, the speed reducing mechanism is a two-stage planetary speed reducing mechanism, and the gear ring and the shell are integrally processed and formed, so that the speed reducing mechanism is compact in structure and relatively high in transmission efficiency, and the applicability of the traction motor is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a rope traction motor and an electric umbrella. Background Technology

[0002] In daily life, common household items such as umbrellas and curtains are often opened and closed manually. With social development and the improvement of people's needs, automated household items are becoming increasingly popular. As a result, automatic curtains and automatic folding umbrellas have emerged on the market. For example, the existing fully automatic folding electric umbrellas on the market use a spring inside the umbrella tube to push the upper part of the umbrella tube to open the umbrella, and a traction motor inside the lower part of the umbrella tube drives the pull rope to pull the upper part of the umbrella tube to fold the umbrella, thus achieving a fully automatic function.

[0003] However, existing rope traction motors are large in size and have low transmission efficiency, resulting in poor applicability. This solution addresses these technical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rope-pulling traction motor and an electric umbrella. The reduction mechanism is a two-stage planetary reduction mechanism, and the gear ring and the housing are integrally machined. The reduction mechanism has a compact structure, high transmission efficiency, and improves the applicability of the traction motor.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rope traction motor, including a housing, a motor body disposed at one end of the housing, a reduction mechanism disposed within the housing, and an output mechanism for traction rope, the output mechanism being disposed at the other end of the housing, the output end of the motor body being connected to the reduction mechanism, the reduction mechanism being connected to the output mechanism, the reduction mechanism being a two-stage planetary reduction mechanism, the output shaft of the reduction mechanism being connected to an output gear, the output mechanism including a connecting shaft disposed on the inner side of the other end of the housing, a drive gear and a grooved wheel coaxially disposed on the connecting shaft, the output gear meshing with the drive gear, and the rope passing over the grooved wheel.

[0006] Two opening slots are formed on the inner side of the other end of the housing. Support sleeves are provided at both ends of the connecting shaft. The two support sleeves are respectively set in the opening slots. A protective cover is detachably provided at the other end of the housing. The protective cover abuts against the support sleeves in the opening slots. A through slot is provided on the protective cover to allow the pull rope to pass through.

[0007] The inner side of the housing is provided with a gear ring that meshes with the planetary gears in the reduction mechanism, and the gear ring is integrally machined with the housing.

[0008] One end of the housing is provided with a limiting groove, and a connecting block is provided on the side of the motor body, the connecting block being embedded in the limiting groove.

[0009] A baffle is provided between the limiting groove and the gear ring.

[0010] A sealing ring is provided between the housing and the motor body.

[0011] The output gear is a spur gear, and the drive gear is a crown gear.

[0012] The inner wall of the grooved wheel is provided with several protruding strips arranged in an alternating array on both sides, and the pull rope is arranged to pass around the protruding strips in sequence.

[0013] The convex strips extend outward from the bottom of the grooved wheel to the opening of the grooved wheel. The distance between two adjacent convex strips on the same side of the grooved wheel is greater than the diameter of the pull rope, and the distance between the convex strips on two opposite sides of the grooved wheel is greater than the diameter of the pull rope.

[0014] On the other hand, this application also provides an electric umbrella, which includes the pull cord traction motor.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The reduction mechanism is a two-stage planetary reduction mechanism, and the gear ring and the housing are integrally machined. The reduction mechanism has a compact structure and high transmission efficiency. The output gear is a spur gear and the drive gear is a crown gear. The output mechanism is simple and compact. The drive gear drives the slotted wheel to pull the rope. The combination of the reduction mechanism and the output mechanism improves the applicability of the traction motor.

[0017] (2) After removing the protective cover, the output mechanism can be installed and disassembled as a whole through the opening slot at one end of the housing. After removing the motor and connecting block, the reduction mechanism can be installed and disassembled as a whole. The installation and disassembly of the traction motor is convenient and quick, thereby improving the assembly and maintenance efficiency of the traction motor and further improving the applicability of the traction motor.

[0018] (3) By setting a sealing ring between the housing and the motor body, and setting a baffle between the limiting groove and the gear ring, the traction motor has better sealing performance and the traction motor runs more stably and reliably. Attached Figure Description

[0019] Figure 1 This is an exploded view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3This is a schematic diagram of the shell structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the grooved wheel of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the convex strip of this utility model.

[0024] In the figure: 1. Housing; 11. Opening groove; 12. Gear ring; 13. Limiting groove; 2. Motor body; 3. Reduction mechanism; 31. Output gear; 4. Output mechanism; 41. Drive gear; 42. Grooved wheel; 421. Protrusion; 43. Connecting shaft; 44. Support sleeve; 5. Protective cover; 51. Through groove; 6. Connecting block; 7. Baffle; 8. Sealing ring. Detailed Implementation

[0025] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0026] Example 1: See Figures 1-3 The cable traction motor includes a housing 1, a motor body 2 disposed at one end of the housing 1, a reduction mechanism 3 disposed inside the housing 1, and an output mechanism 4 for traction cable. The output mechanism 4 is disposed at the other end of the housing 1. The output end of the motor body 2 is connected to the reduction mechanism 3, and the reduction mechanism 3 is connected to the output mechanism 4. The reduction mechanism 3 is a two-stage planetary reduction mechanism. The output shaft of the reduction mechanism 3 is connected to an output gear 31. The output mechanism 4 includes a connecting shaft 43 disposed inside the other end of the housing 1, a drive gear 41 coaxially disposed on the connecting shaft 43, and a grooved wheel 42. The output gear 31 meshes with the drive gear 41, and the cable passes around the grooved wheel 42.

[0027] Two opening slots 11 are opened on the inner side of the other end of the housing 1. Support sleeves 44 are provided at both ends of the connecting shaft 43. The two support sleeves 44 are respectively installed in the opening slots 11. A protective cover 5 is detachably provided at the other end of the housing 1. The protective cover 5 abuts against the support sleeves 44 in the opening slots 11. A through slot 51 is provided on the protective cover 5 to allow the pull rope to pass through.

[0028] The two support sleeves 44 are rotatably mounted on the connecting shaft 43, or the drive gear 41 and the grooved wheel 42 are connected and rotate synchronously on the connecting shaft 43. Both of these methods can achieve synchronous rotation of the drive gear 41 and the grooved wheel 42 on the connecting shaft 43, which will not be described in detail here.

[0029] The inner side of the housing 1 is provided with a gear ring 12 that meshes with the planetary gear in the reduction mechanism 3. The gear ring 12 is integrally formed with the housing 1. The gear ring is machined in the housing by gear shaping, which makes the structure of the reduction mechanism 3 more compact and its operation more stable and reliable.

[0030] The output gear 31 is a spur gear, and the drive gear 41 is a crown gear. The crown gear can mesh with bevel gears, spur gears, or worm gears. When speed reduction is required, meshing with a spur gear with fewer teeth usually achieves a larger reduction ratio and results in a more compact overall size.

[0031] The specific working process and principle of this utility model:

[0032] Start the motor body 2, which drives the two-stage planetary reduction mechanism to move. The output gear 31 on the output shaft of the two-stage planetary reduction mechanism drives the drive gear 41 to move. The drive gear 41 drives the grooved wheel 42 to rotate along the connecting shaft 43. The grooved wheel 42 drives one end of the pull rope to generate tension, thereby pulling the umbrella tube to overcome the tension of the spring and folding the umbrella ribs. The folding and storage of the umbrella is achieved without manual operation.

[0033] The reduction mechanism 3 is a two-stage planetary reduction mechanism, and the gear ring 12 and the housing 1 are integrally machined. The reduction mechanism 3 has a compact structure and high transmission efficiency. The output gear 31 is a spur gear, the drive gear 41 is a crown gear, and the output mechanism 4 is simple and compact. The drive gear 41 drives the slotted wheel 42 to pull the pull rope. The combination of the reduction mechanism 3 and the output mechanism 4 improves the applicability of the traction motor.

[0034] Since the other end of the housing 1 is detachably provided with a protective cover 5, the protective cover 5 abuts against the support sleeve 44 in the opening groove 11. The protective cover 5 plays a protective role while also limiting and fixing the support sleeve 44. After the protective cover 5 is removed, the output mechanism 4 can be installed and removed as a whole from the opening groove 11 at one end of the housing 1. The installation and removal of the traction motor is convenient and quick.

[0035] Example 2: See Figures 1-3 One end of the housing 1 is provided with a limiting groove 13, and the side of the motor body 2 is provided with a connecting block 6. The connecting block 6 is provided with a through hole that allows the motor shaft to pass through. The connecting block 6 is embedded in the limiting groove 13. A baffle 7 is provided between the limiting groove 13 and the gear ring 12. The baffle 7 is also provided with a through hole that allows the motor shaft to pass through. A sealing ring 8 is provided between the housing 1 and the motor body 2. The edge of the housing 8 is provided with a groove to accommodate the sealing ring 8.

[0036] When connecting housing 1 and motor body 2, after installing the reduction mechanism 3 into housing 1, first install the baffle 7 into housing 1, then use bolts to firmly install the connecting block 6 to motor body 2, put the sealing ring 8 into the groove on the edge of housing 8, and finally firmly embed the connecting block 6 into the limiting groove 13. At this time, the motor shaft is also firmly connected to the reduction mechanism 3, and the installation of housing 1 and motor body 2 is completed.

[0037] After removing the motor body 2 and the connecting block 6, the reduction mechanism 3 can be installed and disassembled. The installation and disassembly of the traction motor are convenient and quick, thereby improving the efficiency of traction motor assembly and maintenance, and further improving the applicability of the traction motor.

[0038] A sealing ring 8 is provided between the housing 1 and the motor body 2, and a baffle 7 is provided between the limiting groove 13 and the gear ring 12 to isolate the reduction mechanism 3 from the external environment, thereby improving the sealing performance of the traction motor and making the operation of the traction motor more stable and reliable.

[0039] See Figure 4 , Figure 5 To ensure the stability of the traction force and friction of the pull rope by the grooved wheel 42, several protrusions 421 are arranged in an alternating array on both sides of the inner wall of the grooved wheel 42. The pull rope is arranged to pass around the protrusions 421 in sequence, that is, the pull rope will fall between the alternating protrusions 421, making the pull rope bend, thereby increasing the friction of the pull rope by the grooved wheel 42. After the two ends of the pull rope are tightened, the pull rope is effectively prevented from slipping when driven by the grooved wheel 42, and the transmission of the pull rope by the grooved wheel 42 is more stable and efficient.

[0040] More specifically, the two side walls of the grooved wheel 42 are wedge-shaped and inclined, and the inclination direction of the protrusion 421 is the same as that of the two side walls of the grooved wheel 42. That is, the protrusion 421 is outwardly flared and the protrusion 421 is arc-shaped in the direction of the opening of the grooved wheel 42, so as to facilitate the guidance and tensioning of the pull rope.

[0041] Furthermore, the protrusions 421 extend outward from the bottom of the grooved wheel 42 to the opening of the grooved wheel 42. The distance between two adjacent protrusions 421 on the same side of the grooved wheel 42 is greater than the diameter of the pull rope, and the distance between the protrusions 421 on two opposite sides of the grooved wheel 42 is also greater than the diameter of the pull rope. This makes it easier for the pull rope to be guided between the intersecting protrusions 421, causing the pull rope to be in a bent state, effectively preventing the pull rope from slipping, and further improving the stability of the pull rope traction motor.

[0042] On the other hand, this application also provides an electric umbrella, which includes the aforementioned pull cord traction motor.

[0043] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A cord pull motor comprising a housing (1), characterized in that The electric motor umbrella further comprises a motor body (2) arranged at one end of the shell (1), a speed reduction mechanism (3) arranged in the shell (1), and an output mechanism (4) for pulling the rope, wherein the output mechanism (4) is arranged at the other end of the shell (1), the output end of the motor body (2) is connected with the speed reduction mechanism (3), the speed reduction mechanism (3) is connected with the output mechanism (4), the speed reduction mechanism (3) is a two-stage planetary speed reduction mechanism (3), the output shaft of the speed reduction mechanism (3) is connected with an output gear (31), the output mechanism (4) comprises a connecting shaft (43) arranged inside the other end of the shell (1), a driving gear (41) and a slot wheel (42) coaxially arranged on the connecting shaft (43), the output gear (31) is engaged with the driving gear (41), and the rope passes through the slot wheel (42).

2. The pull cord traction motor of claim 1, wherein, Two open grooves (11) are oppositely arranged inside the other end of the shell (1), both ends of the connecting shaft (43) are provided with support sleeves (44), the two support sleeves (44) are arranged in the open grooves (11) respectively, the other end of the shell (1) is detachably provided with a protective cover (5), the protective cover (5) abuts against the support sleeves (44) in the open grooves (11), and a through groove (51) allowing the rope to pass through is arranged on the protective cover (5).

3. The pull cord traction motor of claim 1, wherein, A gear ring (12) engaged with the planetary gear in the speed reduction mechanism (3) is arranged inside the shell (1), and the gear ring (12) is integrally processed and formed with the shell (1).

4. The pull cord traction motor of claim 3, wherein, A limiting groove (13) is arranged at one end of the shell (1), and a connecting block (6) is arranged on the side of the motor body (2) and embedded in the limiting groove (13).

5. The pull cord traction motor of claim 4, wherein, A baffle (7) is arranged between the limiting groove (13) and the gear ring (12).

6. The pull cord traction motor of claim 5, wherein, A sealing ring (8) is arranged between the shell (1) and the motor body (2).

7. The pull cord traction motor of claim 2, wherein, The output gear (31) is a straight gear, and the driving gear (41) is a crown gear.

8. The pull cord traction motor of claim 1, wherein, A plurality of convex strips (421) are arranged on both sides of the inner wall of the slot wheel (42) in a staggered array, and the rope passes through the convex strips (421) in sequence.

9. The pull cord traction motor of claim 8, wherein, The convex strips (421) are outwardly expanded from the bottom of the slot wheel (42) to the opening of the slot wheel (42), the distance between two adjacent convex strips (421) on the same side of the slot wheel (42) is greater than the diameter of the rope, and the distance between two opposite convex strips (421) of the slot wheel (42) is greater than the diameter of the rope.

10. An electric umbrella, characterized by, The electric umbrella comprises the rope pulling motor according to any one of claims 1-9.

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