Mechanical door opener and automatic opening and closing door

Abstract

The utility model discloses a mechanical door opener and automatic opening and closing door, mechanical door opener includes: mounting rack, transmission subassembly, power mechanism and rocker arm, power mechanism, transmission subassembly and rocker arm transmission connection, transmission subassembly includes power input end, power output end and clutch subassembly, power input end with power mechanism transmission connection, power output end with power mechanism transmission connection, and clutch subassembly with power output end transmission connection. The power input end is in transmission connection with the rocker arm, the power output end is in transmission connection with the rocker arm, the clutch assembly comprises a moving part, when the moving part is located at the coupling position, the power input end and the power output end synchronously move, and when the moving part is located at the decoupling position, the power input end and the power output end independently move; comprising a first driving part and a lifting part, the first driving part is provided with a rotor, the rotor is in transmission connection with the lifting part, the end of the lifting part faces the moving part and is driven by the rotor to move in the direction close to or away from the moving part, and the moving part is controlled by the lifting part to move between the coupling position and the decoupling position.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic door opening and closing, in particular to a mechanical door opener and an automatic door opening and closing device. Background Art

[0002] An intelligent door opening and closing machine is a driving mechanism installed between the door body and the door frame, which can open and close the door body. In recent years, with the advent of the intelligent era, people aspire to enjoy a free and high-tech intelligent life. The emergence of the utility model has realized these demands.

[0003] For example, the door opener and automatic door opening and closing device disclosed in the Chinese patent with the application number 202410113927.X adjusts the frictional force between the friction plate and the iron plate by adjusting the pressing force of the electric cylinder and the link transmission mechanism, so that the frictional force is greater than the torque required for opening the door and less than the maximum load force that the transmission parts in the speed reducer can withstand when the output torque is applied. The above structure is relatively complex, increasing the production cost, and is not conducive to later maintenance and overhaul. At the same time, there is also the problem of relatively heavy self-weight. Summary of the Utility Model

[0004] In view of this, the utility model provides a mechanical door opener and an automatic door opening and closing device to solve the problems of complex structure, high production cost, difficult maintenance and heavy self-weight of the existing door opener.

[0005] In a first aspect, the utility model provides a mechanical door opener, including: a mounting frame, a transmission assembly, a power mechanism and a rocker arm. The mounting frame is arranged on one of the door frame and the door leaf. The power mechanism, the transmission assembly and the rocker arm are in transmission connection. The transmission assembly includes a power input end, a power output end and a clutch assembly. The power input end is in transmission connection with the power mechanism. The power output end is in transmission connection with the rocker arm. The clutch assembly includes a moving part. When the moving part is in the coupling position, the power input end and the power output end move synchronously. When the moving part is in the decoupling position, the power input end and the power output end move independently. It further includes:

[0006] A lifting mechanism is arranged on the mounting frame and includes a first driving part and a lifting part. The first driving part has a rotor, and the rotor is in transmission connection with the lifting part. The end of the lifting part faces the moving part and moves in a direction close to or away from the moving part under the drive of the rotor. The moving part is controlled by the lifting part to move between the coupling position and the decoupling position.

[0007] Optionally, the power input end includes a transmission member rotatably connected to the mounting frame. The power mechanism is drivingly connected to one end of the transmission member through a worm and worm gear transmission structure. The power output end includes an output shaft rotatably connected to the mounting frame. The transmission member is arranged to rotate coaxially with the output shaft.

[0008] The clutch assembly includes a first clutch plate and a second clutch plate. The first clutch plate is arranged inside the transmission member and is arranged to rotate coaxially with the output shaft. The first clutch plate is axially movable but non-rotatable relative to the transmission member. The second clutch plate is arranged inside the transmission member and is arranged to be non-rotatable coaxially with the output shaft. The second clutch plate is axially movable and rotatable relative to the transmission member. The second clutch plate serves as a moving part. The end of the lifting member moves in a direction close to or away from the second clutch plate.

[0009] Optionally, the rotor of the first driving member and the lifting member are arranged to rotate coaxially with the output shaft. The rotor is in threaded cooperation with the lifting member.

[0010] Optionally, the first driving member is provided with a guide sleeve which is in rotational cooperation with the lifting member coaxially.

[0011] Optionally, a support shaft platform is arranged on the mounting frame. One end of the support shaft platform is connected to the mounting frame, and the other end is connected to the bottom of the first driving member. The support shaft platform is arranged to rotate coaxially with the output shaft.

[0012] Optionally, the transmission member is a transmission housing. The top of the transmission housing has a first rotating seat which is arranged to rotate coaxially with the output shaft.

[0013] The worm and worm gear transmission structure includes a first worm which is arranged to rotate coaxially with the output shaft. The first worm is drivingly connected to the first rotating seat. The mounting frame is provided with a limit bearing and a first bearing. The first rotating seat is connected to the mounting frame through the limit bearing. The first worm is in rotational cooperation with the mounting frame through the first bearing. The first rotating seat, the limit bearing, the first worm and the first bearing are arranged in sequence from bottom to top along the axis direction of the output shaft.

[0014] Optionally, a first stop member is fixedly arranged on the mounting frame. The bottom of the first stop member abuts against the top of the first bearing.

[0015] Optionally, the first stop member includes a stop sleeve and a convex edge arranged at one end edge of the stop sleeve. The convex edge is connected to the mounting frame through a fastener. The other end of the stop sleeve is in contact and cooperation with the top surface of the first bearing.

[0016] Optionally, the power mechanism includes a second driving member, a second worm is sleeved on an output rod of the second driving member, the second worm is in transmission connection with a first worm through a turbine assembly, the top of the output rod is in rotational fit with a second bearing arranged on the mounting bracket, and a second stop member is arranged at the top of the second bearing.

[0017] Optionally, the second stop member includes a top cover and a ring edge extending downward from the edge of the top cover to contact the upper surface of the second bearing, and the top cover is anchored on the output rod through a pin.

[0018] In a second aspect, the present utility model provides an automatic door opening and closing device, which includes the above-mentioned mechanical door opener, and further includes: a door assembly composed of a door frame and a door leaf rotatably connected to the door frame.

[0019] Beneficial effects:

[0020] The mechanical door opener provided by the present utility model includes: a mounting bracket, a transmission assembly, a lifting mechanism, a power mechanism and a rocker arm. The mounting bracket is arranged on one of the door frame and the door leaf, the power mechanism, the transmission assembly and the rocker arm are in transmission connection, the transmission assembly includes a power input end, a power output end and a clutch assembly, the power input end is in transmission connection with the power mechanism, the power output end is in transmission connection with the rocker arm, the clutch assembly includes a moving part, when the moving part is in the coupling position, the power input end and the power output end move synchronously, when the moving part is in the decoupling position, the power input end and the power output end move independently, and further includes: a lifting mechanism arranged on the mounting bracket, including a first driving member and a lifting member, the first driving member has a rotor, the rotor is in transmission connection with the lifting member, the end of the lifting member faces the moving part, and moves in a direction close to or away from the moving part driven by the rotor, and the moving part is controlled by the lifting member to move between the coupling position and the decoupling position.

[0021] When the mechanical door opener works, the moving part in the clutch assembly is in the coupling position, the second driving member drives the rocker arm to rotate relative to the mounting bracket through a worm and gear transmission structure, a power input end and a power output end, when the mounting bracket is arranged on the door frame, the other end of the rocker arm drives the door leaf to rotate relative to the door frame, so as to realize automatic door opening and closing. Among them, the movement of the moving part between the coupling position and the decoupling position can be controlled by the lifting mechanism, the lifting mechanism has a lifting member that is controlled by the first driving member to move up and down, after the lifting member rises to the end abuts against the moving part and pushes it to move to the coupling position, the power input end and the power output end realize linkage cooperation, the lifting member descends to the end to leave the moving part, and the moving part can return to the decoupling position under its own weight or the pressure of other structural parts in the clutch assembly that abuts against it.

[0022] Compared with the prior art, in the present application, the first driving member directly controls the lifting member to drive the moving member to move, so as to realize the coupling and decoupling of the power input end and the power output end, without the need to set other transmission structures, which simplifies the structure, reduces the production cost, and is also conducive to the later maintenance and servicing, meeting the lightweight requirement of the door opener. Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural schematic diagram of the mechanical door opener of this embodiment;

[0025] Figure 2 Cross-sectional structural schematic diagram of the mechanical door opener of this embodiment;

[0026] Figure 3 Internal structural schematic diagram of the mechanical door opener of this embodiment;

[0027] Figure 4 For Figure 2 Partial enlarged schematic diagram of A in

[0028] Figure 5 For Figure 2 Partial enlarged schematic diagram of B in

[0029] Figure 6 For Figure 2 Partial enlarged schematic diagram of C in

[0030] Figure 7 Structural schematic diagram of the first clutch disc in this embodiment;

[0031] Figure 8 Structural schematic diagram of the first clutch disc in this embodiment;

[0032] Figure 9 Structural schematic diagram of the convex head in this embodiment.

[0033] Explanation of the reference numerals:

[0034] 100, Mechanical door opener; 1, Mounting bracket; 2, Lifting mechanism; 21, First driving member; 211, Rotor; 212, Guide sleeve; 213, Support shaft platform; 22, Lifting member; 3, Power mechanism; 31, Second driving member; 311, Output rod; 4, Rocker arm; 41, Slot hole; 5, Power input end; 51, Transmission member; 52, Output shaft; 521, Flat section; 522, Convex head; 6, Power output end; 61, First rotating seat; 611, Limiting bearing; 7, Clutch assembly; 71, First clutch plate; 711, First shaft hole; 72, Second clutch plate; 721, Second shaft hole; 8, Worm and worm gear transmission structure; 81, First worm; 811, First bearing; 82, Second worm; 821, Second bearing; 91, First stop member; 911, Stop sleeve; 912, Convex edge; 92, Second stop member; 921, Top cover; 922, Ring edge. Detailed implementation mode

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0036] As Figure 1 、 Figure 2 and Figure 3 shown, in this embodiment, a mechanical door opener is provided. The mechanical door opener 100 includes: a mounting bracket 1, a transmission assembly, a lifting mechanism 2, a power mechanism 3, and a rocker arm 4.

[0037] The mounting bracket 1 is provided on one of the door frame and the door leaf. The mounting bracket 1 is a rectangular frame, which has a plurality of mounting positions for cooperating with the transmission assembly, the lifting mechanism 2, the power mechanism 3, and other components. The mounting bracket 1 can be installed on one of the door frame and the door leaf by means of anchor bolts, screw fastening structures, welding, etc. The power mechanism 3, the transmission assembly, and the rocker arm 4 are in transmission connection.

[0038] The transmission assembly is arranged on the mounting bracket 1 and includes a power input end 5, a power output end 6 and a clutch assembly 7. The power input end 5 is in transmission connection with the power mechanism 3, and the power output end 6 is in transmission connection with the rocker arm 4. The clutch assembly 7 includes a moving part. When the moving part is in the coupling position, the power input end 5 and the power output end 6 move synchronously. When the moving part is in the decoupling position, the power input end 5 and the power output end 6 move independently. Specifically, when the moving part is in the coupling position, the power of the power input end 5 is transmitted to the power output end 6 to realize the coupling movement of the two. When the moving part is in the decoupling position, the power of the power input end 5 is not enough to drive the power output end 6 to move, realizing the decoupling movement of the two.

[0039] The lifting mechanism 2 is arranged on the mounting bracket 1 and includes a first driving member 21 and a lifting member 22. The first driving member has a rotor, and the rotor is in transmission connection with the lifting member. The end of the lifting member faces the moving part and moves in a direction close to or away from the moving part under the drive of the rotor. The moving part is controlled by the lifting member to move between the coupling position and the decoupling position.

[0040] The power mechanism 3 includes a second driving member 31 arranged on the mounting bracket 1. The second driving member 31 is in transmission connection with the power input end 5 through a worm and worm gear transmission structure 8. The second driving member 31 provides power for the power input end 5 through the worm and worm gear transmission structure 8. When the moving part is in the coupling position, the second driving member 31 drives the rocker arm 4 to rotate relative to the mounting bracket 1 through the worm and worm gear transmission structure 8, the power input end 5 and the power output end 6, so as to realize the automatic door opening and closing function.

[0041] One end of the rocker arm 4 is connected to the power output end 6, and the other end acts on the other of the door frame and the door leaf.

[0042] When the mechanical door opener 100 works, the moving part in the clutch assembly 7 is in the coupling position. The second driving member 31 drives the rocker arm 4 to rotate relative to the mounting bracket 1 through the worm and worm gear transmission structure 8, the power input end 5 and the power output end 6. When the mounting bracket 1 is arranged on the door frame, the other end of the rocker arm 4 drives the door leaf to rotate relative to the door frame, so as to realize automatic door opening and closing. Similarly, when the mounting bracket 1 is arranged on the door leaf, the other end of the rocker arm 4 is connected to the door frame, and the door leaf can still be driven to rotate relative to the door frame. Among them, the movement of the moving part between the coupling position and the decoupling position can be controlled by the lifting mechanism 2. The lifting mechanism 2 has a lifting member 22 that is controlled by the first driving member 21 to move up and down. After the lifting member 22 rises to the end and abuts against the moving part and pushes it to move to the coupling position, the power input end 5 and the power output end 6 realize linkage cooperation. When the lifting member 22 descends to the end and leaves the moving part, the moving part can return to the decoupling position under its own weight or the pressure of other structural members in the clutch assembly 7 that abut against it.

[0043] Compared with the prior art, in the present application, the first driving member 21 directly controls the lifting member 22 to drive the moving member to move, so as to realize the coupling and decoupling of the power input end 5 and the power output end 6, without setting other transmission structures, which simplifies the structure, reduces the production cost, and is also conducive to the later maintenance and servicing, meeting the lightweight requirement of the door opener.

[0044] As Figure 2 , Figure 3 and Figure 4 shown, in this embodiment, the power input end 5 includes a transmission member 51, the transmission member 51 is rotatably connected to the mounting frame 1, the power mechanism 3 is drivingly connected to one end of the transmission member 51 through a worm and worm gear transmission structure 8, the power output end 6 includes an output shaft 52, the output shaft 52 is rotatably connected to the mounting frame 1, and the transmission member 51 and the output shaft 52 are coaxially rotatable.

[0045] The clutch assembly 7 includes a first clutch plate 71 and a second clutch plate 72. The first clutch plate is arranged inside the transmission member 51 and is coaxially rotatable with the output shaft 52. The first clutch plate 71 is axially movable but not rotatable relative to the transmission member 51. The second clutch plate 72 is arranged inside the transmission member 51 and is non-rotatably arranged coaxially with the output shaft 52. The second clutch plate 72 is axially movable and rotatable relative to the transmission member 51. The second clutch plate 72 serves as the moving member, and the end of the lifting member 22 moves in a direction close to or away from the second clutch plate 72.

[0046] When the top of the lifting member 22 does not press the second clutch plate 72, there is a certain frictional force between the first clutch plate 71 and the second clutch plate 72. When the power input end 5 provides power, the first clutch plate 71 rotates around the output shaft 52 along with the transmission member 51. However, the frictional force between the first clutch plate 71 and the second clutch plate 72 is not sufficient to provide enough torque to drive the second clutch plate 72 to rotate, and the second clutch plate 72 and the output shaft 52 remain stationary. On the contrary, when the output shaft 52 and the second clutch plate 72 rotate synchronously, the first clutch plate 71 and the power input end 5 remain stationary. Therefore, when the second clutch plate 72 is in the decoupled position, there is no linkage relationship between the power input end 5 and the power output end 6.

[0047] When the lifting member 22 presses the second clutch plate 72 through the top under the drive of the first driving member 21, the frictional force between the second clutch plate 72 and the first clutch plate 71 increases. When the power input end 5 provides power, the first clutch plate 71 rotates around the output shaft 52 along with the transmission member 51. The frictional force between the first clutch plate 71 and the second clutch plate 72 is sufficient to provide enough torque to drive the second clutch plate 72 to rotate, and the second clutch plate 72 and the output shaft 52 move synchronously with the transmission member 51 and the first clutch plate 71. Therefore, when the second clutch plate 72 is in the coupled position, there is a linkage relationship between the power input end 5 and the power output end 6, thereby realizing automatic door opening and closing.

[0048] The above-mentioned conversion of the second clutch disc 72 between the decoupled position and the coupled position can be completely achieved by the first driving member 21 driving the lifting member 22 to move up and down through the rotor 211, with a simple structure and reduced production costs.

[0049] In this embodiment, the opposite surfaces of the first clutch disc 71 and the second clutch disc 72 are rough planes, and the number of the first clutch discs 71 and the second clutch discs 72 is the same or the difference in the number is 1, and they are arranged in an alternating and interspersed manner. For example, at least two first clutch discs are provided, and at least two second clutch discs 72 are provided, and they are arranged in a manner of adjacent cooperation between the first clutch discs 71 and the second clutch discs 72.

[0050] As Figure 3 and Figure 4 shown, in this embodiment, the rotor 211 of the first driving member 21 and the lifting member 22 are arranged to rotate coaxially with the output shaft 52. The rotor 211 is in threaded engagement with the lifting member 22. For example, the outer shape of the lifting member 22 can be a circular tube, the inner wall of the lifting member 22 is a smooth surface and is sleeved on the output shaft 52, and the output shaft 52 will not be affected during the up and down movement of the lifting member 22. The outer wall of the lifting member 22 is provided with an external thread, and the rotor 211 is provided with an internal thread that mates with the external thread. The first driving member 21 can be a servo motor. The first driving member 21 controls the lifting member 22 to move up or down respectively by driving the rotor 211 to rotate forward and backward. In this way, a small-power motor can be used for the first driving member 21 to provide sufficient pressure on the second clutch disc 72 by the lifting member 22.

[0051] As Figure 3 and Figure 4 shown, in this embodiment, the first driving member 21 is provided with a guide sleeve 212. The guide sleeve 212 is in rotational engagement with the lifting member 22 coaxially. The outer wall of the output shaft 52 cooperates with the inner wall of the lifting member 22 for guiding, and the guide sleeve 212 cooperates with the outer wall of the lifting member 22 for guiding, so that the lifting member 22 can accurately move along the axis direction of the output shaft 52, improving the stability of the rotor 211 driving the lifting member 22 to move up and down.

[0052] In an implementation manner of this embodiment, the lower end of the guide sleeve 212 is in rotational engagement with the rotor 211, so that the rotor 211 can only rotate relative to the output shaft 52 and cannot move in the axial direction.

[0053] As Figure 3 and Figure 4As shown, in this embodiment, a support shaft platform 213 is provided between the bottom of the mounting bracket 1 and the first driving member 21. The support shaft platform 213 is coaxially rotatably arranged with the output shaft 52. The support shaft platform 213 does not interfere with the movement of the output shaft 52, and at the same time can shorten the distance between the first driving member 21 and the transmission member 51. Then, a lifting member 22 with higher thread precision and shorter length dimension can be set, which is beneficial to improving the efficiency of the moving member moving towards the coupling position and is also beneficial to performing precise pressurization.

[0054] As Figure 3 shown, in this embodiment, the transmission member 51 is a transmission housing. The top of the transmission housing is a first rotating seat 61 that is coaxially rotatably arranged with the output shaft 52. The worm and worm gear transmission structure 8 has a first worm 81 that is coaxially rotatably arranged with the output shaft. The first worm 81 is connected to the first rotating seat 61, and the first worm 81 and the first rotating seat 61 rotate synchronously, thereby driving the transmission member 51 and the first clutch plate 71 to rotate synchronously. The first rotating seat 61 is connected to the mounting bracket 1 through a limit bearing 611. The limit bearing 611 can limit the axial movement of the transmission member 51 and ensure the effectiveness of the lifting member 22 pressing on the moving member. The first worm 81 is rotationally matched with the mounting bracket 1 through a first bearing 811 to ensure the stability of the rotation of the first worm 81. The first rotating seat 61, the limit bearing 611, the first worm 81, and the first bearing 811 are arranged in sequence from bottom to top along the axis direction of the output shaft to ensure that the first worm 81 can stably drive the first rotating seat 61 and the transmission member 51 to rotate relative to the output shaft 52.

[0055] The edge of the first clutch plate 71 has protrusions, and the transmission member 51 has clamping grooves that cooperate with the protrusions. A plurality of protrusions are arranged around the first clutch plate 71, and a plurality of clamping grooves are arranged at positions corresponding to the plurality of protrusions one by one. The driving mechanism is in transmission connection with the transmission member 51 and is adapted to drive the transmission member 51 to rotate around the rotation axis of the output shaft 52.

[0056] As Figure 2 、 Figure 3 and Figure 5 shown, in this embodiment, a first stop member 91 fixedly connected to the mounting bracket 1 is provided at the top of the first bearing 811. During the long-term operation of the first worm 81, the first bearing 811 has a tendency to move along the output shaft 52. The first stop member 91 can press the first bearing 811 to prevent the first bearing 811 from detaching from the mounting bracket 1, so as to ensure the stability of the rotation of the first worm 81 and ensure that the door opener can operate stably for a long time, saving the cost of later maintenance and repair.

[0057] As Figure 5As shown, in a specific implementation of this embodiment, the first stop member 91 includes a stop sleeve 911 and a flange 912 arranged on the edge of one end of the stop sleeve 911, and the flange 912 is connected to the mounting frame 1 through a fastener, which can be a screw or a pin, and the other end of the stop sleeve 911 is in contact with the top surface of the first bearing 811.

[0058] like Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the power mechanism 3 includes a second driving member 31, and a second worm 82 is sleeved on the output rod 311 of the second driving member 31. The second worm 82 is transmission-connected to the first worm 81 through a turbine assembly. The top of the output rod 311 is rotationally matched with a second bearing 821 arranged on the mounting frame 1, and a second stopper 92 is arranged on the top of the second bearing 821. The second bearing 821 can ensure the stability of the cooperation between the second worm 82 and the turbine assembly. The second driving member 31 drives the output rod 311, the second worm 82, the worm wheel assembly and the first worm 81, thereby providing power for the power input end 5. During the long-term operation of the second worm 82, the second bearing 821 has a tendency to move upward. The second stopper 92 can press the second bearing 821, thereby preventing the second bearing 821 from detaching from the mounting frame 1, ensuring the stability of the movement of the second worm 82, and ensuring that the door opener can operate stably for a long time, thereby reducing the cost of later inspection and maintenance.

[0059] like Figure 6 As shown, in this embodiment, the second stop member 92 includes a top cover 921 and an annular edge 922 extending downward from the edge of the top cover 921 to contact the upper surface of the second bearing 821. The top cover 921 is anchored on the output rod 311 by pins. The second stop member 92 can rotate with the output rod 311 without reducing the rotation ability of the second worm gear 82. At the same time, the second bearing 821 can be pressed by the annular edge 922 to ensure that the second worm gear 82 can operate stably for a long time.

[0060] like Figure 7 , Figure 8 and Figure 9 As shown, in this embodiment, the first clutch plate 71 has a first shaft hole 711, and the size of the first shaft hole 711 is larger than the diameter of the output shaft 52, so that the first clutch plate 71 will not be linked with the output shaft 52 when rotating. The second clutch plate 72 has a second shaft hole 721, and the size of the second shaft hole 721 is the same as the diameter of the output shaft 52, so that the second clutch plate 72 and the output shaft 52 can always maintain a linked relationship, so that when the first clutch plate 71 and the second clutch plate 72 are in contact, the second clutch plate 72 can drive the output shaft 52 to rotate.

[0061] The second shaft hole 721 has a first planar segment, and the output shaft 52 has a second planar segment 521. The first planar segment and the second planar segment 521 are in sliding fit. Specifically, the first planar segment and the second planar segment 521 are in sliding fit in the extending direction of the output shaft 52, and the edge of the first planar segment abuts against the edge of the second planar segment 521. In this way, the contact and separation between the second clutch plate 72 and the first clutch plate 71 can be realized by the relative sliding of the second clutch plate 72 with respect to the output shaft 52. Since the edges of the first planar segment and the second planar segment on the second shaft hole 721 are in abutting fit, the second clutch plate 72 and the output shaft 52 can always maintain a rotational fit relationship in the circumferential direction of the output shaft 52 and always rotate synchronously.

[0062] The top of the output shaft 52 has a convex head 522, and the rocker arm 4 is provided with a slot hole 41 adapted to the shape of the convex head 522. The convex head 522 is fixed in the slot hole 41 by a fixing member. For example, the fixing member can be a pin, and the convex head 522 is fixed in the slot hole 41 by the pin. In this way, it can be ensured that the rocker arm 4 can rotate synchronously with the output shaft 52 during the rotation of the output shaft 52.

[0063] In a second aspect, the present invention provides an automatic door opener, which includes the above-mentioned mechanical door opener 100, and further includes: a door assembly composed of a door frame and a door leaf rotatably connected to the door frame.

[0064] The composition and connection relationship of the mechanical door opener 100 in this embodiment are completely the same as those of the mechanical door opener 100 in the above text, and will not be repeated here. It also has the advantages of simple structure, low production cost, and being conducive to later maintenance and repair, and realizes the lightweight requirement of the automatic door opener.

[0065] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A mechanical door opener, comprising: A mounting bracket (1), a transmission assembly, a power mechanism, and a rocker arm (4). The mounting bracket is provided on one of the door frame and the door leaf. The power mechanism (3), the transmission assembly, and the rocker arm (4) are in transmission connection. The transmission assembly includes a power input end (5), a power output end (6), and a clutch assembly (7). The power input end (5) is in transmission connection with the power mechanism (3), the power output end (6) is in transmission connection with the rocker arm (4), and the clutch assembly (7) includes a moving part. When the moving part is in the coupling position, the power input end (5) and the power output end (6) move synchronously. When the moving part is in the decoupling position, the power input end (5) and the power output end (6) move independently. It is characterized in that it further includes: A lifting mechanism (2) provided on the mounting bracket (1), including a first driving member (21) and a lifting member (22). The first driving member (21) has a rotor (211), and the rotor (211) is in transmission connection with the lifting member (22). The end of the lifting member (22) faces the moving part and moves in a direction close to or away from the moving part under the drive of the rotor (211). The moving part is controlled by the lifting member (22) to move between the coupling position and the decoupling position.

2. The mechanical door opener according to claim 1, characterized in that, The power input end (5) includes a transmission member (51). The transmission member (51) is rotatably connected to the mounting bracket (1). The power mechanism is in transmission connection with one end of the transmission member (51) through a worm and worm gear transmission structure (8). The power output end (6) includes an output shaft (52). The output shaft (52) is rotatably connected to the mounting bracket (1). The transmission member (51) is coaxially rotatably arranged with the output shaft (52); The clutch assembly (7) includes a first clutch plate (71) and a second clutch plate (72). The first clutch plate (71) is arranged in the transmission member (51) and is coaxially rotatably arranged with the output shaft (52). The first clutch plate (71) is axially movable but non-rotatable relative to the transmission member (51). The second clutch plate (72) is arranged in the transmission member (51) and is coaxially non-rotatably arranged with the output shaft (52). The second clutch plate (72) is axially movable and rotatable relative to the transmission member (51). The second clutch plate (72) serves as the moving part. The end of the lifting member (22) moves in a direction close to or away from the second clutch plate (72).

3. The mechanical door opener according to claim 2, characterized in that, The rotor (211) of the first driving member (21) and the lifting member (22) are coaxially rotatably arranged with the output shaft (52), and the rotor (211) is in threaded cooperation with the lifting member (22).

4. The mechanical door opener according to claim 2, characterized in that, The first driving member (21) is provided with a guide sleeve (212), and the guide sleeve (212) is in coaxial rotational cooperation with the lifting member (22).

5. The mechanical door opener according to claim 2, characterized in that, A support shaft platform (213) is provided on the mounting bracket (1). One end of the support shaft platform (213) is connected to the mounting bracket (1), and the other end is connected to the bottom of the first driving member (21). The support shaft platform (213) is arranged to rotate coaxially with the output shaft (52).

6. The mechanical door opener according to claim 2, characterized in that, The transmission member (51) is a transmission housing, and a first rotating seat (61) is provided at the top of the transmission housing. The first rotating seat (61) is arranged to rotate coaxially with the output shaft (52); The worm and worm gear transmission structure (8) includes a first worm (81). The first worm (81) is arranged to rotate coaxially with the output shaft (52). The first worm (81) is in transmission connection with the first rotating seat (61). The mounting bracket (1) is provided with a limit bearing (611) and a first bearing (811). The first rotating seat (61) is connected to the mounting bracket (1) through the limit bearing (611). The first worm (81) is in rotational cooperation with the mounting bracket (1) through the first bearing (811). The first rotating seat (61), the limit bearing (611), the first worm (81), and the first bearing (811) are arranged in sequence from bottom to top along the axis direction of the output shaft (52).

7. The mechanical door opener according to claim 6, characterized in that, A first stop member (91) is fixedly provided on the mounting bracket (1). The bottom of the first stop member (91) abuts against the top of the first bearing (811).

8. The mechanical door opener according to claim 7, characterized in that, The first stop member (91) includes a stop sleeve (911) and a convex edge (912) provided at one end edge of the stop sleeve (911). The convex edge (912) is connected to the mounting bracket (1) through a fastener. The other end of the stop sleeve (911) is in contact and cooperation with the top surface of the first bearing (811).

9. The mechanical door opener according to claim 6, characterized in that, The power mechanism (3) includes a second driving member (31). A second worm (82) is sleeved on the output rod (311) of the second driving member (31). The second worm (82) is in transmission connection with the first worm (81) through a turbine assembly. The top of the output rod (311) is in rotational cooperation with a second bearing (821) provided on the mounting bracket (1). A second stop member (92) is provided at the top of the second bearing (821).

10. The mechanical door opener according to claim 9, characterized in that, The second stop member (92) includes a top cover (921) and a ring edge (922) extending downward from the edge of the top cover (921) to contact the upper surface of the second bearing (821). The top cover (921) is anchored on the output rod (311) through a pin.

11. An automatic door switch, characterized in that, Including the mechanical door opener according to any one of claims 1 to 10, further comprising: a door assembly, which is composed of a door frame and a door leaf rotatably connected to the door frame.

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