CN107829669A - A kind of motor of rolling shutter door opens Door by Hand system - Google Patents

Abstract

The invention provides a rolling door motor manual door opening system, which includes a motor housing, the motor housing is provided with a motor shaft for driving the rolling door, and a brake housing, the brake housing includes a top plate and a side plate; a transmission shaft, The transmission shaft passes through the top plate, and the end of the transmission shaft close to the motor shaft is provided with an inner hexagonal cavity, and the end of the motor shaft is provided with a positioning hexagonal nut matching the inner hexagonal cavity.

Description

A rolling shutter door motor manual door opening system

technical field

The invention relates to the technical field of motors, in particular to a manual door opening system for a rolling door motor.

Background technique

Rolling shutter doors are widely used in some public places. Generally, rolling shutter doors are driven up and down by motors. However, in the event of a power failure or click damage, the door needs to be opened and closed manually to ensure personal and property safety. At present, the commonly used method is to manually pull the chain wound on the brake pads to raise the door body. The low transmission efficiency leads to time-consuming and laborious operation, and the wear of the brake pads after frequent use will lead to transmission failure.

Contents of the invention

The purpose of the present invention is to provide an easy-to-operate, high-reliability rolling door motor manual door opening system.

In order to achieve said object, the present invention adopts following technical scheme:

A manual door opening system for a rolling door motor, comprising a motor casing, the motor casing is provided with a rotor for driving the rolling door, and it is characterized in that it also includes:

a rear case, the rear case includes a top plate and a side plate;

The transmission shaft passes through the top plate, and the end of the transmission shaft near the rotor is provided with an inner hexagonal cavity, and the end of the rotor is provided with a positioning hexagonal nut matching the inner hexagonal cavity.

As a preference, a brake disc set is provided on the rotor, and the brake disc set includes a brake main body that is sleeved and connected with the rotor, and the inner side of the brake main body is provided with the rotor to limit the distance between the two. Relatively rotating drive surfaces.

As a preference, the brake main body is provided with a positioning slot partially accommodating the positioning hex nut, and the end of the transmission shaft is provided with a limit nut for limiting the movement of the positioning hex nut, and the outer side of the limit nut is The diameter of the flange part is smaller than the diameter of the outer flange part of the positioning hex nut.

As a preference, the brake disc set includes a friction disc and a swing block console, two swing blocks are hingedly arranged on the swing block console, a tension spring is connected between the two swing blocks, and the rear Brake pads are arranged parallel to the friction disc inside the casing, a sleeve is sleeved on the transmission shaft, one end of the sleeve is connected to the brake pad, and a return spring is provided between the other end and the top plate, so that A top plate is also arranged between the top plate and the return spring.

As a preference, a baffle is provided inside the rear housing, the baffle includes a guide hole at the center, and the transmission shaft passes through the guide hole.

As a preference, the transmission shaft is provided with a manual hex nut at the outer end of the rear casing, and a positioning pin is connected between the manual hex nut and the transmission shaft.

As a preference, a supporting member is provided between the motor housing and the rear housing, the supporting member includes an accommodating hole, an annular groove is provided in the accommodating hole, and a For a bearing, one end of the supporting member is provided with a bearing baffle that cooperates with the annular groove to limit the displacement of the bearing, and the rotor passes through the accommodating hole.

As a preference, a motor and a reducer are arranged inside the motor housing.

To sum up, compared with the prior art, the present invention has the advantages of pressing the transmission shaft so that the inner hexagonal cavity is engaged with the positioning hexagonal nut, and the door can be opened manually by turning the transmission shaft with an electric screwdriver tool; Pull up the sleeve to keep the brake pad away from the brake disc. The connection and drive structure is stable and reliable. When the door is manually opened in an accident, the sleeve can be loosened to realize the brake of the door body. Under the action of the spring, the operator's electric batch and brake shaft can be Smooth and easy detachment, high security.

Description of drawings

Fig. 1 is a structural sectional view of the present invention;

Figure 2 is an enlarged view of the structure at A in Figure 1;

Fig. 3 is a structural schematic diagram of the brake disc set.

The labels in the figure are as follows:

1. Motor housing, 11. rotor, 111. positioning hex nut, 112. Limit nut, 2. rear casing, 21. top plate, 22. Side panels, 23． transmission shaft, 231. Inner hexagon cavity, 232. sleeve, 233. return spring, 234. Manual hex nut, 235. Locating pin shaft, 24. top plate, 25． Partition, 3. Brake disc set, 31. brake body, 311. drive surface, 312. positioning slot, 32. Friction disc, 33. block console, 331. Throw blocks, 34． Extension spring, 4. support member, 41. Accommodating hole, 42. annular groove, 43. bearing, 44． Bearing baffle.

Detailed ways

The present invention will be further described below in conjunction with the embodiments in the accompanying drawings.

As shown in Fig. 1 and Fig. 2, the manual door opening system of the rolling door motor includes a motor housing 1, and a rotor 11 for driving the rolling door is arranged in the motor housing 1. The rotor 11 is connected with the rolling door and drives the rolling door to rise and fall. One end of the motor housing 1 is provided with a rear housing 2 , and the rear housing 2 includes a top plate 21 and a side plate 22 . The circular top plate 21, the side plate 22 and the motor casing 1 form a cavity. A transmission shaft 23 is disposed through the top plate 21 , and the end of the transmission shaft 23 near the rotor 11 is provided with an inner hexagonal cavity 231 , and the end of the rotor 11 is provided with a positioning hexagonal nut 111 matching with the inner hexagonal cavity 231 . Move the transmission shaft 23 to the inside of the rear housing 2, so that when the inner hexagon cavity 231 is mated with the positioning hexagon nut 111, the rotation of the transmission shaft 23 can drive the rotor 11 to rotate, thereby realizing the rising and falling of the rolling shutter door.

The rotor 11 is provided with a brake disc set 3 , the brake disc set 3 includes a brake body 31 socketed with the rotor 11 , and the inner side of the brake body 31 is provided with a driving surface 311 that cooperates with the rotor 11 to limit the relative rotation between the two. The driving surface 311 is a plane structure parallel to the rotation axis of the rotor 11 on one side of the end of the rotor 11 .

The brake main body 31 is provided with a positioning groove 312 that partially accommodates the positioning hexagon nut 111. The upper part of the positioning hexagon nut 111 is located outside the positioning groove 312. The end of the transmission shaft 23 is provided with a limit nut 112 for limiting the movement of the positioning hexagon nut 111. The diameter of the outer flange portion of the nut 112 is smaller than the diameter of the outer flange portion of the positioning hex nut 111 . The limit nut 112 is threadedly connected with the transmission shaft 23 . When the transmission shaft 23 is pushed toward the rotor 11 side, the limit nut 112 passes through the inner hexagonal cavity 231, and the inner hexagonal cavity 231 engages with the positioning hexagonal nut 111 to realize the transmission between the rotor 11 and the transmission shaft 23. At this time, the limit nut 112 It is located inside the inner hexagonal cavity 231 and plays the role of limiting the axial displacement of the positioning hexagonal nut 111, preventing the positioning hexagonal nut 111 from loosening during the use of the motor, and at the same time preventing the rotation of the limiting nut 112 from affecting the inner hexagonal cavity 231 and the positioning hexagonal nut. The cooperation between 111 has an impact.

As shown in Figure 3, the brake disc group 3 includes a friction disc 32 and a block console 33, and the console 33 is hingedly provided with two blocks 331, and the two blocks 331 are located outside the console 33. The edge is hinged with the control panel 33 of the throwing block, and a tension spring 34 is connected between the two throwing blocks 331 . When the brake disc 3 rotates, the centrifugal force counteracts the pulling force of the extension spring, and the throwing block 331 rotates relative to the hinged position. Brake pads are arranged parallel to the friction disc 32 inside the rear housing 2, and a sleeve 232 is sleeved on the drive shaft 23. One end of the sleeve 232 is connected to the brake pad, and a return spring 233 is arranged between the other end and the top plate 21. The top plate 21 A top plate 24 is also arranged between the return spring 233 . The return spring 233 acts on the sleeve 232 to make it move toward the side of the friction disc 32 . When the transmission shaft 23 cooperates with the brake shaft to manually rotate the rolling door, the sleeve 232 is pulled toward the end far away from the brake disc group 3 to separate the brake pad from the friction disc 32, and the sleeve 232 can be loosened under the action of the return spring 233 to realize the opening and closing of the door body. Brake to avoid dangerous situations that may be caused by accidents. The arrangement of the sleeve 232 simultaneously ensures the trackability of the transmission shaft 23 during its movement.

The rear casing 2 is provided with a partition 25, the partition 25 includes a guide hole at the center, and the drive shaft 23 passes through the guide hole to limit the position of the drive shaft 23 to ensure its orbital movement and the relationship with the rotor 11. The smoothness of the connection between. The drive shaft 23 is located at the outer end of the rear housing 2 and is provided with a manual hex nut 234 , and the manual hex nut 234 is connected to the drive shaft 23 through a positioning pin 235 . The manual opening of the rolling shutter door can be realized by putting the electric batch on the manual hex nut 234.

A supporting member 4 is arranged between the motor housing 1 and the rear housing 2. The supporting member 4 includes an accommodating hole 41. An annular groove 42 is arranged in the accommodating hole 41. A bearing 43 is arranged in the annular groove 42. One end of the supporting member 4 There is a bearing baffle 44 cooperating with the annular groove 42 to limit the displacement of the bearing 43 , and the rotor 11 passes through the accommodating hole 41 . The bearing 43 limits the position of the end of the rotor 11 , offsets the torque generated at the connection between the rotor 11 and the driving surface 311 , and ensures the position stability of the axis during the rotation of the rotor 11 . The bearing 43 is positioned at the same time as the brake disc group 3 . The bearing baffle 44 fixes the bearing 43 in the annular groove 42 to limit its displacement. A motor and a reducer are arranged in the motor housing 1, and the motor and the reducer are connected with the rotating shaft of the rolling door.

The above description is only an explanation of the present invention, so that those of ordinary skill in the art can implement the scheme completely, but it is not a limitation of the present invention. Those skilled in the art can make non-inventive changes to this embodiment as needed after reading this description. Contributed modifications, these are not creative modifications, but as long as they are within the scope of the claims of the present invention, they are all protected by the patent law.

Claims (8)

1. A manual door opening system for a rolling door motor, comprising a motor housing (1), the motor housing (1) is provided with a rotor (11) that drives the rolling door to move, and it is characterized in that it also includes: A rear case (2), the rear case (2) includes a top plate (21) and a side plate (22); Transmission shaft (23), the transmission shaft (23) passes through the top plate (21), the end of the transmission shaft (23) close to the rotor (11) is provided with an inner hexagon cavity (231), the rotor ( 11) The end is provided with a positioning hexagonal nut (111) matching the inner hexagonal cavity (231). 2. A rolling door motor manual door opening system according to claim 1, characterized in that: the rotor (11) is provided with a brake disc set (3), and the brake disc set (3) includes (11) A drive part (31) that is socketed and connected, and a drive surface (311) that cooperates with the rotor (11) to limit relative rotation between the two is provided on the inner side of the drive part (31). 3. A rolling door motor manual door opening system according to claim 2, characterized in that: the driving part (31) is provided with a positioning groove (312) partially accommodating the positioning hex nut (111), the The end of the transmission shaft (23) is provided with a limit nut (112) to limit the movement of the positioning hex nut (111), and the diameter of the outer flange of the limit nut (112) is smaller than that of the positioning hex nut (111). Outer flange diameter. 4. A rolling door motor manual door opening system according to claim 2, characterized in that: the brake disc set (3) includes a friction disc (32) and a block control console (33), and the block control console (33) There are two throwing blocks (331) on the upper hinge, a tension spring is connected between the two throwing blocks (331), and the rear housing (2) is arranged parallel to the friction plate (32) There are brake pads, a sleeve (232) is sleeved on the transmission shaft (23), one end of the sleeve (232) is connected to the brake pad, and a reset is provided between the other end and the top plate (21). A spring (233), a top plate (24) is also arranged between the top plate (21) and the return spring (233). 5. A rolling door motor manual door opening system according to claim 1, characterized in that: a partition (25) is provided inside the rear housing (2), and the partition (25) includes a centrally located A guide hole, through which the transmission shaft (23) passes. 6. A rolling door motor manual door opening system according to claim 1, characterized in that: the drive shaft (23) is provided with a manual hex nut (234) at the outer end of the rear casing (2), A positioning pin (235) is connected between the manual hex nut (234) and the transmission shaft (23). 7. A rolling door motor manual door opening system according to claim 1, characterized in that: a supporting member (4) is arranged between the motor housing (1) and the rear housing (2), and the The supporting member (4) includes a housing hole (41), an annular groove (42) is arranged in the housing hole (41), a bearing (43) is arranged in the annular groove (42), and the supporting member ( 4) One end is provided with a bearing baffle (44) that cooperates with the annular groove (42) to limit the displacement of the bearing (43), and the rotor (11) passes through the accommodating hole (41). 8. A rolling door motor manual door opening system according to claim 1, characterized in that: the motor housing (1) is provided with a motor and a reducer.