A door opener

Abstract

The utility model provides a door opener, including motor, speed reducer, door opener and hand zipper subassembly, the door opener includes shell body, transmission assembly, sleeve, abuts and reaches, switching assembly and normally closed switch, the shell body is fixed on the motor, transmission assembly rotatable is arranged in the shell body, the sleeve is set up on transmission assembly and is connected with the shell body screw thread, abuts and reaches and is set up on transmission assembly, normally closed switch is fixed in the shell body inside and is connected with motor electrically, switching assembly is fixed with sleeve to drive sleeve and transmission assembly moves opposite shell body, to make abuts and reaches have with normally closed switch's contact abuts and keeps on -on and transmission assembly and motor disconnects the first state of connection, and with abuts and reaches and normally closed switch's contact is disconnected abuts and reaches and transmission assembly and motor transmission connection's second state, hand zipper subassembly only in special circumstances can play a role, and then eliminates the possible of misoperation, guarantees production safety.

Description

Technical Field

[0001] This utility model relates to the technical field of door opening equipment, and in particular to a door opening machine. Background Technology

[0002] With the advancement of technology and the continuous improvement of people's living standards, automatic door openers have gradually become more widely recognized and accepted. Door openers can be classified into two types according to their driving method: electromechanical door openers and hydraulic door openers. Electromechanical door openers consist of a motor, a motor drive unit, a speed transmission mechanism, and a clutch device.

[0003] For example, patent CN218570017U provides an industrial door opener drive device, including: a hand zipper structure, a motor, and a reducer. The reducer includes an input shaft, which passes through the motor and is connected to the hand zipper structure for transmission. The motor includes a housing, a stator, and a rotor. The housing is fixed on the reducer, the rotor is sleeved on the input shaft and fixed to the input shaft, and the stator is sleeved on the rotor and fixed inside the housing.

[0004] The existing technology has the following drawbacks: both the zipper structure and the motor can control the opening of the door, and under special circumstances, the zipper structure may be misoperated. Utility Model Content

[0005] In view of this, it is necessary to provide a door opener that can solve the problem of misoperation of the manual zipper structure.

[0006] This utility model provides a door opener, comprising: Electric motor; The speed reducer is rotatably connected to the motor; A door opener includes a housing, a transmission assembly, a sleeve, a contact sleeve, a switching assembly, and a normally closed switch. The housing is fixed to a motor. The transmission assembly is rotatably inserted through the housing. The sleeve is fitted onto the transmission assembly and threadedly connected to the housing. The contact sleeve is fitted onto the transmission assembly. The normally closed switch is fixed inside the housing and electrically connected to the motor. The switching assembly is fixed to the sleeve to drive the sleeve and the transmission assembly to move relative to the housing. This allows the contact sleeve to have a first state where it abuts against the contacts of the normally closed switch and remains conductive, while the transmission assembly is disconnected from the motor. It also allows the contact sleeve to disengage from the contacts of the normally closed switch and the transmission assembly to be connected to the motor. And a hand zipper assembly, which is rotatably connected to the transmission assembly.

[0007] In other embodiments, the transmission assembly includes a gear ring, a bevel gear, and a transmission shaft. The transmission shaft is rotatably mounted through the housing. The gear ring is fixed to one end of the motor. The bevel gear is sleeved on the transmission shaft. In the first state, the bevel gear is separated from the gear ring. In the second state, the bevel gear is engaged with the gear ring.

[0008] In other embodiments, the outer surface of the sleeve is provided with threads, and the outer shell is provided with a threaded hole for the drive shaft to pass through. The threaded hole matches the sleeve, and the inner diameter of the sleeve matches the drive shaft.

[0009] In other embodiments, the abutment sleeve is fitted onto the drive shaft, the outer peripheral surface of the abutment sleeve forms an abutment surface that abuts against the normally closed switch contact, and the distance between the normally closed switch and the drive shaft matches the abutment sleeve.

[0010] In other embodiments, the switching assembly includes a rotating gear and a chain, the rotating gear being coaxially fixed with the sleeve, and the chain meshing with the rotating gear.

[0011] In other embodiments, the motor includes a motor housing, a motor shaft, a stator, and a rotor. The motor shaft passes through the motor housing, one end of the motor shaft forms a connection end for connection with the door opener, and the other end of the motor shaft is connected to the reducer. The stator is fixed on the inner wall of the motor housing, and the rotor is sleeved on the motor shaft.

[0012] In other embodiments, the speed reducer includes a speed reducer housing, a worm, a worm wheel, and a rotating rod. The worm is disposed inside the speed reducer housing, and one end of the worm is connected to the motor for transmission. The rotating rod is rotatably fixed inside the speed reducer housing, and the worm wheel is sleeved on the rotating rod and threadedly connected to the worm.

[0013] In other embodiments, the worm gear is fixed coaxially with the motor shaft.

[0014] In other embodiments, the worm gear is connected to the motor shaft via a gear transmission.

[0015] In other embodiments, a plurality of heat dissipation fins extend from the outer surface of the reducer housing.

[0016] The beneficial effects of this utility model are as follows: This utility model includes a motor, a reducer, a door opener, and a zipper assembly. The motor is rotatably connected to the reducer. The door opener includes a housing, a transmission assembly, a sleeve, a contact sleeve, a switching assembly, and a normally closed switch. The housing is fixed to the motor. The transmission assembly is rotatably inserted through the housing. The sleeve is fitted onto the transmission assembly and threadedly connected to the housing. The contact sleeve is fitted onto the transmission assembly. The normally closed switch is fixed inside the housing and electrically connected to the motor. The switching assembly is fixed to the sleeve to drive the sleeve and the transmission assembly to move relative to the housing. This allows the contact sleeve to have a first state where it contacts the normally closed switch and remains conductive, and the transmission assembly is disconnected from the motor; and a second state where the contact sleeve is disconnected from the normally closed switch and the transmission assembly is connected to the motor. The zipper assembly is rotatably connected to the transmission assembly. During normal motor operation, the abutting sleeve abuts against the contacts of the normally closed switch, keeping the normally closed switch conducting. At this time, the transmission component is disconnected from the motor, and the inner shaft of the motor cannot be rotated by the hand zipper assembly. When manual operation is required, rotating the switching component drives the sleeve and the transmission component to move relative to the outer shell, causing the abutting sleeve to disconnect from the contacts of the normally closed switch and the transmission component to be connected to the motor. At this time, the motor is open-circuited and stops working, but the hand zipper assembly is rotatably connected to the motor through the transmission component. Thus, manual operation can be performed by the hand zipper assembly. This utility model, by setting up a door opener, ensures that the hand zipper assembly can only function under special circumstances, thereby eliminating the possibility of misoperation and ensuring production safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the door opening mechanism in this utility model; Figure 2 for Figure 1 A schematic diagram of the structure after removing the outer shell; Figure 3 for Figure 2 Enlarged schematic diagram of the central transmission assembly; Figure 4 for Figure 3 A schematic diagram of the switching component in the middle; Figure 5for Figure 1 Cross-sectional schematic diagram of a center-opening gantry crane; Wherein: 1-motor, 11-motor housing, 12-motor shaft, 13-stator, 14-rotor; 2-Reducer, 21-Reducer housing, 211-Heat dissipation fins, 22-Worm, 23-Worm wheel, 24-Rotating rod; 3-Gate opener, 31-Outer casing, 32-Transmission assembly, 321-Gear ring, 322-Bevel gear, 323-Drive shaft, 33-Sleeve, 34-Abutting sleeve, 35-Switching assembly, 351-Rotating gear, 352-Chain, 36-Normally closed switch; 4- Hand zipper assembly. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figure 1-5 As shown, an embodiment of this utility model provides a door opener, which includes: a motor 1, a reducer 2, a door opener 3, and a hand zipper assembly 4. The motor 1 is rotatably connected to the reducer 2. The door opener 3 includes a housing 31, a transmission assembly 32, a sleeve 33, a contact sleeve 34, a switching assembly 35, and a normally closed switch 36. The housing 31 is fixed to the motor 2. The transmission assembly 32 is rotatably inserted through the housing 31. The sleeve 33 is sleeved on the transmission assembly 32 and threadedly connected to the housing 31. The contact sleeve 34 is sleeved on the transmission assembly 32. The normally closed switch 36 is fixed inside the housing 31 and electrically connected to the motor 2. The switching component 35 is fixed to the sleeve 33 to drive the sleeve 33 and the transmission component 32 to move relative to the housing 31, so that the abutting sleeve 34 has a first state in which it abuts against the contacts of the normally closed switch 36 and remains conductive, and the transmission component 32 is disconnected from the motor 1, and a second state in which the abutting sleeve 34 is disconnected from the contacts of the normally closed switch 36 and the transmission component 32 is connected to the motor 1. The zipper assembly 4 is rotatably connected to the transmission component 32.

[0021] In this invention, during normal motor drive, the contact sleeve 34 abuts against the contacts of the normally closed switch 36, keeping the normally closed switch 36 conducting. At this time, the transmission component 32 is disconnected from the motor 1, and the inner shaft of the motor 2 cannot be rotated via the hand zipper assembly 4. When manual operation is required, the switching component 35 is rotated, driving the sleeve 33 and the transmission component 32 to move relative to the outer shell 41, causing the contact sleeve 34 to disconnect from the contacts of the normally closed switch 36 and the transmission component 32 to be connected to the motor 1. At this time, the motor 2 is open-circuited and stops working, but the hand zipper assembly 4 is rotatably connected to the motor 1 via the transmission component 32. Thus, manual operation can be performed via the hand zipper assembly 4. By setting up a door opener, this invention ensures that the hand zipper assembly 4 can only function under special circumstances, thereby eliminating the possibility of misoperation and ensuring production safety.

[0022] Specifically, the motor 1 includes a motor housing 11, a motor shaft 12, a stator 13, and a rotor 14. The motor shaft 12 passes through the motor housing 11, one end of the motor shaft 12 forms a connection end that is connected to the door opener 3, and the other end of the motor shaft 12 is connected to the reducer 2. The stator 13 is fixed on the inner wall of the motor housing 11, and the rotor 14 is sleeved on the motor shaft 12.

[0023] It should be noted that the stator 13 and the rotor 14 are conventional devices in motors in the art, and this application has not improved them. Their structure is well known to those skilled in the art, so their specific structure will not be described in detail here.

[0024] Specifically, the reducer 2 includes a reducer housing 21, a worm 22, a worm wheel 23, and a rotating rod 24. The worm 22 is disposed inside the reducer housing 21, and one end of the worm 22 is connected to the motor 1 for transmission. The rotating rod 24 is rotatably fixed inside the reducer housing 21. The worm wheel 23 is sleeved on the rotating rod 24 and is threadedly connected to the worm 22.

[0025] In some feasible embodiments, the worm gear 22 is connected to the motor 1 by means that the worm gear 22 is coaxially fixed with the motor shaft 12. However, in this embodiment, the worm gear 22 and the motor shaft 12 are connected by gears.

[0026] Specifically, a plurality of heat dissipation fins 211 extend from the outer surface of the reducer housing 21. The heat dissipation fins 211 are used to improve the heat dissipation capacity of the reducer housing 21.

[0027] Specifically, the transmission assembly 32 includes a gear ring 321, a bevel gear 322, and a transmission shaft 323. The transmission shaft 323 is rotatably mounted on the outer casing 31. The gear ring 321 is fixed to one end of the motor shaft 12. The bevel gear 322 is sleeved on the transmission shaft 323. When in the first state, the bevel gear 322 is separated from the gear ring 321. When in the second state, the bevel gear 322 is engaged with the gear ring 321.

[0028] Specifically, the outer surface of the sleeve 33 is threaded, and the outer casing 31 has a threaded hole for the drive shaft 323 to pass through. The threaded hole matches the sleeve 33, and the inner diameter of the sleeve 33 matches the drive shaft 323. The switching assembly 35 can drive the sleeve 33 to rotate, and through the engagement of the threaded hole and the thread, the sleeve 33 and the drive shaft 323 can move relative to the threaded hole.

[0029] Specifically, the abutment sleeve 34 is sleeved on the drive shaft 323, and the outer peripheral surface of the abutment sleeve 34 forms an abutment surface that abuts against the contact of the normally closed switch 36. The distance between the normally closed switch 36 and the drive shaft 323 matches the abutment sleeve 34. When the drive shaft 323 is displaced, the normally closed switch 36 and the abutment sleeve 34 also move relative to each other, so the abutment sleeve 34 can either abut against or disengage from the contact of the normally closed switch 36.

[0030] Specifically, the switching assembly 35 includes a rotating gear 351 and a chain 352. The rotating gear 351 is coaxially fixed with the sleeve 33, and the chain 352 meshes with the rotating gear 351. When a state needs to be switched, the chain 352 pulls the rotating gear 351 to rotate, thereby driving the sleeve 33 to rotate. Through the engagement of the threaded hole and the thread, the sleeve 33 and the transmission shaft 323 move relative to the threaded hole.

[0031] Specifically, the normally closed switch 36 is located between the power supply and the motor 1. When the contacts of the normally closed switch 36 are abutted by the abutting sleeve 34, the normally closed switch 36 is closed, making the power supply and the motor 1 conductive, and the motor 1 can work; when the contacts of the normally closed switch 36 are disengaged from the abutting sleeve 34, the normally closed switch 36 is open, the circuit between the motor 1 and the power supply is broken, and the motor 1 stops working.

[0032] In use, during normal motor drive, the abutment sleeve 34 abuts against the contacts of the normally closed switch 36, keeping the normally closed switch 36 conducting. At this time, the transmission component 32 is disconnected from the motor 1, and the inner shaft of the motor 2 cannot be rotated through the hand zipper assembly 4. When manual operation is required, the switching component 35 is rotated, driving the sleeve 33 and the transmission component 32 to move relative to the outer shell 41, causing the abutment sleeve 34 to disconnect from the contacts of the normally closed switch 36 and the transmission component 32 to be connected to the motor 1. At this time, the motor 2 is open-circuited and stops working, but the hand zipper assembly 4 is rotatably connected to the motor 1 through the transmission component 32. At this time, manual operation can be performed through the hand zipper assembly 4. This utility model, by setting a door opener, ensures that the hand zipper assembly 4 can only function under special circumstances, thereby eliminating the possibility of misoperation and ensuring production safety.

[0033] The beneficial effects of this utility model are: This utility model includes a motor, a reducer, a door opener, and a zipper assembly. The motor is rotatably connected to the reducer. The door opener includes a housing, a transmission assembly, a sleeve, a contact sleeve, a switching assembly, and a normally closed switch. The housing is fixed to the motor. The transmission assembly is rotatably inserted through the housing. The sleeve is fitted onto the transmission assembly and threadedly connected to the housing. The contact sleeve is fitted onto the transmission assembly. The normally closed switch is fixed inside the housing and electrically connected to the motor. The switching assembly is fixed to the sleeve to drive the sleeve and the transmission assembly to move relative to the housing. This allows the contact sleeve to have a first state where it contacts the normally closed switch and remains conductive, and the transmission assembly is disconnected from the motor; and a second state where the contact sleeve is disconnected from the normally closed switch and the transmission assembly is connected to the motor. The zipper assembly is rotatably connected to the transmission assembly. During normal motor operation, the abutting sleeve abuts against the contacts of the normally closed switch, keeping the normally closed switch conducting. At this time, the transmission component is disconnected from the motor, and the inner shaft of the motor cannot be rotated by the hand zipper assembly. When manual operation is required, rotating the switching component drives the sleeve and the transmission component to move relative to the outer shell, causing the abutting sleeve to disconnect from the contacts of the normally closed switch and the transmission component to be connected to the motor. At this time, the motor is open-circuited and stops working, but the hand zipper assembly is rotatably connected to the motor through the transmission component. Thus, manual operation can be performed by the hand zipper assembly. This utility model, by setting up a door opener, ensures that the hand zipper assembly can only function under special circumstances, thereby eliminating the possibility of misoperation and ensuring production safety.

[0034] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.

Claims

1. A door opener, characterized in that, include: Electric motor; The speed reducer is rotatably connected to the motor; A door opener includes a housing, a transmission assembly, a sleeve, a contact sleeve, a switching assembly, and a normally closed switch. The housing is fixed to a motor. The transmission assembly is rotatably inserted through the housing. The sleeve is fitted onto the transmission assembly and threadedly connected to the housing. The contact sleeve is fitted onto the transmission assembly. The normally closed switch is fixed inside the housing and electrically connected to the motor. The switching assembly is fixed to the sleeve to drive the sleeve and the transmission assembly to move relative to the housing. This allows the contact sleeve to have a first state where it abuts against the contacts of the normally closed switch and remains conductive, while the transmission assembly is disconnected from the motor. It also allows the contact sleeve to disengage from the contacts of the normally closed switch and the transmission assembly to be connected to the motor. And a hand zipper assembly, which is rotatably connected to the transmission assembly.

2. The door opener as described in claim 1, characterized in that, The transmission assembly includes a gear ring, a bevel gear, and a transmission shaft. The transmission shaft is rotatably mounted on the outer casing. The gear ring is fixed to one end of the motor. The bevel gear is sleeved on the transmission shaft. When in the first state, the bevel gear is separated from the gear ring. When in the second state, the bevel gear is engaged with the gear ring.

3. The door opener as described in claim 2, characterized in that, The outer surface of the sleeve is threaded, and the outer shell is provided with a threaded hole for the drive shaft to pass through. The threaded hole matches the sleeve, and the inner diameter of the sleeve matches the drive shaft.

4. The door opener as described in claim 2, characterized in that, The abutment sleeve is fitted onto the drive shaft, and the outer circumferential surface of the abutment sleeve forms an abutment surface that abuts against the normally closed switch contact. The distance between the normally closed switch and the drive shaft matches the abutment sleeve.

5. The door opener as described in claim 2, characterized in that, The switching assembly includes a rotating gear and a chain. The rotating gear is coaxially fixed with the sleeve, and the chain meshes with the rotating gear.

6. The door opener as described in claim 1, characterized in that, The motor includes a motor housing, a motor shaft, a stator, and a rotor. The motor shaft passes through the motor housing, one end of the motor shaft forms a connection end that connects to the door opener, and the other end of the motor shaft is connected to the reducer. The stator is fixed on the inner wall of the motor housing, and the rotor is sleeved on the motor shaft.

7. The door opener as described in claim 6, characterized in that, The speed reducer includes a speed reducer housing, a worm, a worm wheel, and a rotating rod. The worm is disposed inside the speed reducer housing, and one end of the worm is connected to the motor for transmission. The rotating rod is rotatably fixed inside the speed reducer housing, and the worm wheel is sleeved on the rotating rod and threadedly connected to the worm.

8. The door opener as described in claim 7, characterized in that, The worm gear is fixed coaxially with the motor shaft.

9. The door opener as described in claim 7, characterized in that, The worm gear is connected to the motor shaft via gear transmission.

10. The door opener as described in claim 7, characterized in that, Several heat dissipation fins extend from the outer surface of the reducer housing.

Images