Hand tubular motor

Abstract

The utility model relates to the technical field of tubular motors, and discloses a hand-cranking tubular motor, which is characterized in that the hand-cranking tubular motor comprises a base and an outer tube, a hand-cranking part is arranged on the base and is in transmission connection with the outer tube, a planetary gear set is arranged in the outer tube, and the planetary gear set comprises a planetary carrier, a sun gear and a planetary gear part. When the hand-cranking part drives the outer pipe to rotate, the end cover can be driven to rotate, so that the planet carrier rotates, and under the condition that the sun gear does not rotate, the planet gear part can circumferentially rotate along the sun gear, so that the output piece rotates; by means of the technical scheme, rotation of the output piece can be achieved through transmission of the outer pipe under the condition that a rotary sliding ring body is omitted, and therefore the overall length of the tubular motor can be reduced and occupied space can be reduced under the condition that lifting of the roller shutter door can be controlled through hand cranking.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular motors, and more particularly to a hand-cranked tubular motor. Background Art

[0002] Electric rolling shutter doors are increasingly being used. A tubular motor is installed inside the electric rolling shutter door to drive the door up and down. However, due to its large overall structure, it is difficult to raise or lower the electric rolling shutter door by directly pulling the door in the event of a power outage or power failure.

[0003] Therefore, in the invention patent with application number 20071000212.4, a tubular motor with a manual rotating device is disclosed. The manual rotating device is provided at the tubular motor so that the rolling door can be raised and lowered by the manual rotating device.

[0004] In the above manual rotation device, a rotating slip ring needs to be provided in the tubular motor to prevent the wires from being twisted off. However, the provision of the rotating slip ring requires increasing the overall length of the tubular motor, which results in an increase in the space occupied. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a hand-cranked tubular motor for manually controlling a rolling shutter door while eliminating the use of a rotating slip ring.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a hand-cranked tubular motor, comprising a base and an outer tube, the base being provided with a hand-cranked part, the hand-cranked part being transmission-connected to the outer tube, a planetary gear set being provided inside the outer tube, the planetary gear set comprising a planet carrier, a sun gear and a planetary gear part, the sun gear being transmission-connected to the planet carrier through the planetary gear part, an end cover being fixedly connected to the outer tube, the end cover being meshed with or fixedly connected to the planet carrier, an output member being rotatably connected to the end cover, and the output member being connected to the planetary gear part.

[0007] As a further improvement of the present invention, an extension section is formed at one end of the end cover facing the planet carrier, a gear ring is formed on the outer surface of the extension section, and the gear ring is engaged with the planet carrier.

[0008] As a further improvement of the present invention, the planetary gear portion includes at least three planetary gears, the planetary gears are engaged with the sun gear, and the three planetary gears are all connected to the output member.

[0009] As a further improvement of the present invention, at least three pillars are formed on one end of the output member facing the planetary gear portion, through holes are opened on the planetary gear, and the pillars extend into the corresponding through holes.

[0010] As a further improvement of the present invention, a bearing is connected between the output member and the end cover.

[0011] As a further improvement of the present invention, the hand-cranked part includes a worm and a gear, the worm is rotationally connected to the base, the worm is meshed with the gear, and the gear is transmission-connected to the outer tube.

[0012] As a further improvement of the present invention, a sleeve is fixedly connected to the gear, and one end of the sleeve away from the gear extends into the outer tube and is fixedly connected to the outer tube.

[0013] As a further improvement of the present invention, a connecting pipe is inserted into the end of the sleeve away from the gear, and the connecting pipe is sleeved on the sleeve, and the sleeve is fixedly connected to the outer tube through the connecting pipe.

[0014] As a further improvement of the present invention, a plurality of slots are formed at one end of the sleeve away from the gear, and a plurality of inserts are formed in the connecting tube, and the inserts are inserted into the corresponding slots.

[0015] As a further improvement of the present invention, the base includes a support section, the support section extends into the outer tube, and the sleeve is sleeved on the support section.

[0016] The beneficial effects of the utility model are as follows: in the utility model, when the hand-cranked part drives the outer tube to rotate, the end cover will be driven to rotate, thereby causing the planetary carrier to rotate. When the sun gear does not rotate, the planetary gear part will rotate circumferentially along the sun gear, thereby causing the output member to rotate. The rotation of the output member can be achieved through the transmission of the outer tube without the rotating slip ring body, thereby reducing the overall length of the tubular motor and reducing the occupied space while realizing the manual control of the lifting of the rolling shutter door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the hand crank part of the utility model

[0019] Figure 3 It is a cross-sectional view of the planetary gear set in the present invention;

[0020] Figure 4 It is a structural diagram of the end cover of the utility model;

[0021] Figure 5 It is a structural diagram of the output component in the utility model;

[0022] Figure 6 This is a schematic structural diagram of the planetary gear portion of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the hand-cranked part of the utility model;

[0024] Figure 8 It is a structural diagram of the casing in the utility model;

[0025] Figure 9 It is a structural schematic diagram of the connecting pipe in the utility model.

[0026] Figure numerals: 1. base; 11. support section; 2. outer tube; 3. hand-cranked part; 31. worm; 32. gear; 33. sleeve; 331. slot; 34. connecting tube; 341. insert; 41. planetary carrier; 42. sun gear; 43. planetary gear part; 431. through hole; 5. end cover; 51. extension section; 511. ring gear; 6. output member; 61. pillar; 62. bearing. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0028] Reference Figure 1 、 Figure 2 and Figure 3 As shown, a hand-cranked tubular motor of this embodiment includes a base 1 and an outer tube 2. A hand-cranked portion 3 is provided on the base 1, and the hand-cranked portion 3 is transmission-connected to the outer tube 2. The outer tube 2 can be controlled to rotate by the hand-cranked portion 3. A planetary gear set is provided in the outer tube 2. The planetary gear set includes a planet carrier 41, a sun gear 42, and a planetary gear portion 43. The sun gear 42 is transmission-connected to the planet carrier 41 via the planetary gear portion 43. Multiple planetary gear sets can be provided, and the multiple planetary gear sets can share a planet carrier 41, thereby achieving multi-stage reduction.

[0029] An end cover 5 is fixedly connected to the outer tube 2, and the end cover 5 is engaged or fixedly connected to the planet carrier 41. In this embodiment, the end cover 5 is engaged with the planet carrier 41, and an output member 6 is rotatably connected to the end cover 5, and the output member 6 is connected to the planet gear portion 43. The end cover 5 and the outer tube 2 are fixedly connected by bolts, wherein a positioning member is formed on the outer surface of the end cover 5, and a positioning groove is opened at the end of the outer tube 2. The positioning member is snapped into the corresponding positioning groove, thereby forming a positioning, which facilitates the connection of the bolts. The positioning grooves are evenly distributed circumferentially along the central axis of the outer tube 2. In this embodiment, there are three positioning grooves.

[0030] When the hand crank 3 drives the outer tube 2 to rotate, it will drive the end cover 5 to rotate, thereby causing the planet carrier 41 to rotate. When the sun gear 42 does not rotate, the planet gear part 43 will rotate circumferentially along the sun gear 42, thereby causing the output member 6 to rotate. The output member 6 drives the winding tube on the electric rolling door to rotate. The winding tube and the output member 6 are connected to the rotating wheel to realize the lifting and lowering of the rolling door.

[0031] The output member 6 can be rotated by the transmission of the outer tube 2 without the rotating slip ring, thereby reducing the overall length of the tubular motor and the occupied space while enabling manual control of the lifting of the rolling door.

[0032] When the motor in the tubular motor is working, it drives the output member 6 to rotate through the planetary gear set. At this time, the planet carrier 41 and the end cover 5 do not rotate; the planetary gear set plays a deceleration role.

[0033] In the case of multiple planetary gear sets, in this embodiment, a three-stage reduction is implemented, and a common planet carrier 41 is provided. During the rotation of the planet carrier 41, the sun gear 42 between two adjacent sets of planetary gear parts 43 will rotate, and the planetary gear parts 43 will also rotate. Under the action of the reduction ratio, the output speed of the output member 6 will be slightly affected.

[0034] Reference Figure 4 As shown, an extension section 51 is formed at one end of the end cover 5 facing the planet carrier 41, and a ring gear 511 is formed on the outer surface of the extension section 51. The ring gear 511 is engaged with the planet carrier 41. Since internal teeth are formed in the planet carrier 41, it is preferred that the end cover 5 and the planet carrier 41 are driven by meshing; the ring gear 511 is engaged with the internal teeth, and when the end cover 5 rotates, the planet carrier 41 is driven to rotate.

[0035] Of course, the end cover 5 and the planet carrier 41 can be fixed by bolts.

[0036] Reference Figure 4 and Figure 5As shown, the planetary gear portion 43 includes at least three planetary gears, which are engaged with the sun gear 42 , and the at least three planetary gears are all connected to the output member 6 .

[0037] Reference Figure 4 As shown, at least three struts 61 are formed on one end of the output member 6 facing the planetary gear portion 43. Through holes 431 are formed on the planetary gear, and the struts 61 extend into corresponding through holes 431. This can increase the rotational stability of the output member 6 and facilitate the connection between the output member 6 and the planetary gear.

[0038] The plurality of pillars 61 are evenly distributed circumferentially along the central axis of the output member 6 .

[0039] Generally speaking, there can be three or four pillars 61 .

[0040] A bearing 62 is connected between the output member 6 and the end cover 5 . The provision of the bearing 62 can increase the rotational stability between the output member 6 and the end cover 5 .

[0041] Reference Figure 7 、 Figure 8 and Figure 9 As shown, the hand-cranked part 3 includes a worm 31 and a gear 32. The worm 31 is rotatably connected to the base 1, wherein a through-hole is provided on the base 1, and the through-hole passes through the opposite sides of the base 1. The worm 31 is rotatably connected in the through-hole. Hexagonal holes are provided at both ends of the worm 31, and of course, square holes can also be provided to facilitate connection with the rocker, so that the rocker can drive the rotation of the worm 31. The worm 31 is meshed with the gear 32, and the gear 32 is transmission-connected to the outer tube 2. When the worm 31 rotates, the gear 32 can be driven to rotate by the meshing, thereby causing the outer tube 2 to rotate.

[0042] A sleeve 33 is fixedly connected to the gear 32. The gear 32 and the sleeve 33 can be formed as one piece. The end of the sleeve 33 away from the gear 32 extends into the outer tube 2 and is fixedly connected to the outer tube 2. In this embodiment, the outer tube 2 can be fixedly connected to the sleeve 33 by bolts, so that transmission is performed between the outer tube 2 and the gear 32 through the sleeve 33.

[0043] In another embodiment, a connecting tube 34 is inserted into the end of the sleeve 33 away from the gear 32, and the connecting tube 34 is sleeved on the sleeve 33. The sleeve 33 is fixedly connected to the outer tube 2 through the connecting tube 34. When there is a difference between the outer diameter of the sleeve 33 and the inner diameter of the outer tube 2, the connecting tube 34 can be added to achieve transmission.

[0044] The connecting pipe 34 and the outer pipe 2 are fixedly connected by bolts. The connecting pipe 34 and the sleeve 33 can also be connected by bolts. The connecting pipe 34 and the sleeve 33 can also be connected by transmission in a meshing manner.

[0045] Preferably, the connecting tube 34 and the sleeve 33 are connected to each other by plugging. A plurality of slots 331 are formed on the end of the sleeve 33 away from the gear 32. A plurality of inserts 341 are formed in the connecting tube 34. The inserts 341 are inserted into corresponding slots 331 to facilitate the alignment of the connecting tube 34 with the outer tube 2. There are five slots 331, which are evenly distributed along the central axis of the sleeve 33.

[0046] In one embodiment, four threaded holes may be formed on the sleeve 33, connecting holes corresponding to the threaded holes may be formed on the connecting tube 34, and countersunk holes corresponding to the connecting holes may be formed on the outer tube 2. The corresponding threaded holes, connecting holes, and countersunk holes may be connected by bolts.

[0047] The slots 331 and the threaded holes may exist at the same time, and the threaded hole is located between the two slots 331 .

[0048] Reference Figure 2 As shown, the base 1 includes a support section 11, which extends into the outer tube 2. The sleeve 33 is sleeved on the support section 11. The support section 11 increases the stability of the sleeve 33, prevents the sleeve 33 from breaking, and provides certain support for the sleeve 33.

[0049] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A hand-cranked tubular motor, characterized in that: The invention comprises a base (1) and an outer tube (2), wherein a hand-cranked part (3) is provided on the base (1), and the hand-cranked part (3) is transmission-connected to the outer tube (2), and a planetary gear set is provided in the outer tube (2), wherein the planetary gear set comprises a planetary carrier (41), a sun gear (42) and a planetary gear part (43), and the sun gear (42) is transmission-connected to the planetary carrier (41) through the planetary gear part (43), and an end cover (5) is fixedly connected to the outer tube (2), and the end cover (5) is meshed with or fixedly connected to the planetary carrier (41), and an output member (6) is rotatably connected to the end cover (5), and the output member (6) is connected to the planetary gear part (43).

2. A hand-cranked tubular motor according to claim 1, characterized in that: An extension section (51) is formed at one end of the end cover (5) facing the planet carrier (41), and a gear ring (511) is formed on the outer surface of the extension section (51), and the gear ring (511) is meshed with the planet carrier (41).

3. A hand-cranked tubular motor according to claim 1, characterized in that: The planetary gear portion (43) includes at least three planetary gears, the planetary gears are engaged with the sun gear (42), and the planetary gears are all connected to the output member (6).

4. A hand-cranked tubular motor according to claim 3, characterized in that: At least three pillars (61) are formed on one end of the output member (6) facing the planetary gear portion (43); a through hole (431) is opened on the planetary gear, and the pillars (61) extend into the corresponding through holes (431).

5. The hand-cranked tubular motor according to claim 1, characterized in that: A bearing (62) is connected between the output member (6) and the end cover (5).

6. The hand-cranked tubular motor according to claim 1, characterized in that: The hand-cranked part (3) comprises a worm (31) and a gear (32); the worm (31) is rotationally connected to the base (1); the worm (31) is meshed with the gear (32); and the gear (32) is transmission-connected to the outer tube (2).

7. A hand-cranked tubular motor according to claim 6, characterized in that: A sleeve (33) is fixedly connected to the gear (32), and one end of the sleeve (33) facing away from the gear (32) extends into the outer tube (2) and is fixedly connected to the outer tube (2).

8. The hand-cranked tubular motor according to claim 7, characterized in that: A connecting pipe (34) is inserted into one end of the sleeve (33) away from the gear (32), and the connecting pipe (34) is sleeved on the sleeve (33). The sleeve (33) is fixedly connected to the outer tube (2) through the connecting pipe (34).

9. The hand-cranked tubular motor according to claim 8, characterized in that: A plurality of slots (331) are formed at one end of the sleeve (33) away from the gear (32), and a plurality of inserting strips (341) are formed in the connecting tube (34), and the inserting strips (341) are inserted into the corresponding slots (331).

10. The hand-cranked tubular motor according to claim 7, characterized in that: The base (1) comprises a support section (11), the support section (11) extends into the outer tube (2), and the sleeve (33) is sleeved on the support section (11).

Images