Elevator door motor device

Abstract

The utility model provides an elevator door motor device which comprises a door motor bottom plate, a first door hanging plate, a second door hanging plate, a door knife, a transmission device and a driving device, wherein the transmission device and the driving device are arranged on the door motor bottom plate. The driving device is in driving connection with the door knife and used for driving the door knife to transversely move; the first door hanging plate and the second door hanging plate are located on the same side of the door machine bottom plate, the door knife is located on the side, away from the door machine bottom plate, of the first door hanging plate, the door knife and the first door hanging plate are fixedly connected through a connecting piece, and a gap is formed between the door knife and the first door hanging plate; the transmission device comprises a transmission rope and two transmission wheels, the two transmission wheels are arranged on the door machine bottom plate in a spaced mode in the transverse direction, and the transmission rope passes through the gap and is wound around the two transmission wheels; the transmission rope is connected with the first door hanging plate and the second door hanging plate and used for driving the first door hanging plate and the second door hanging plate to transversely move in opposite movement directions. Based on the front design of the transmission rope, the space utilization rate of the whole door machine device is improved, and the structure of the door machine device is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator accessories, in particular to an elevator door machine device. Background Art

[0002] An elevator door operator is an auxiliary component used to open and close the elevator car door. It is an indispensable component of the elevator system, and its performance is closely related to the overall safety and comfort of the elevator system. The elevator door operator primarily operates by driving a motor to move the door hanger, which in turn drives the car door, thereby opening and closing the car door.

[0003] However, existing elevator door operators still face several challenges. For example, due to the irrational placement and layout of components, existing elevator door operators typically occupy a large space and are bulky. Furthermore, existing elevator door operators lack structural safeguards against the possibility of door panel detachment, which can pose a series of safety hazards.

[0004] Based on this, it is urgent to propose a solution to solve at least one of the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an elevator door machine device, and the specific technical solution is as follows:

[0006] The utility model provides an elevator door machine device, comprising: a door machine bottom plate, a first door hanging plate, a second door hanging plate, a door knife, and a transmission device and a driving device arranged on the door machine bottom plate;

[0007] The driving device is connected to the door knife and is used to drive the door knife to move horizontally;

[0008] The first door hanging plate and the second door hanging plate are located on the same side of the door machine bottom plate, the door knife is located on the side of the first door hanging plate facing away from the door machine bottom plate, the door knife is fixedly connected to the first door hanging plate by a connecting member, and a gap is formed between the door knife and the first door hanging plate;

[0009] The transmission device includes a transmission rope and two transmission wheels, and the two transmission wheels are arranged on the door machine bottom plate along the horizontal interval. The transmission rope passes through the gap and is wound around the two transmission wheels; the transmission rope is respectively connected to the first door hanging plate and the second door hanging plate, and is used to drive the two to move horizontally in opposite directions.

[0010] In a specific embodiment, a transverse track is provided on the door machine bottom plate, and the first door hanging plate and the second door hanging plate are both slidably connected to the transverse track; the two transmission wheels are fixedly provided at both ends of the transverse track.

[0011] In a specific embodiment, at least one of the first door hanging plate and the second door hanging plate is provided with an upper anti-slip component and / or a lower anti-slip component on the side facing the door machine bottom plate; the upper anti-slip component is close to and surrounds the upper part of the transverse track, and the lower anti-slip component is close to and surrounds the lower part of the transverse track.

[0012] In a specific embodiment, it further includes a door machine drag chain for guiding cables, and the first door hanging plate and the second door hanging plate are each connected to the door machine bottom plate through one of the door machine drag chains.

[0013] In a specific embodiment, limit baffles are provided on the left and right sides of the first door hanging plate and the left and right sides of the second door hanging plate on the door machine bottom plate, and the limit baffles are used to limit the lateral movement of the first door hanging plate or the second door hanging plate.

[0014] In a specific embodiment, positions on the first door hanging plate and the second door hanging plate corresponding to the limit baffle are both provided with abutment components for abutting and cooperating with the limit baffle.

[0015] In a specific embodiment, the abutment assembly includes a connecting piece, a fixing member and a flexible buffer member;

[0016] The connecting piece is fixedly connected to the first door hanging plate or the second door hanging plate. A through hole is opened on the connecting piece. The flexible buffer is passed through the through hole and can move laterally. The fixing piece is used to fix the lateral position of the flexible buffer.

[0017] In a specific embodiment, the driving device includes a low-voltage motor and a low-voltage permanent magnet controller arranged on the door machine base plate, the low-voltage motor drive is connected to the door knife, the low-voltage permanent magnet controller signal is connected to the low-voltage motor, and a Bluetooth module is provided in the low-voltage permanent magnet controller.

[0018] In a specific embodiment, it also includes a transmission belt and a rotating wheel arranged on the bottom plate of the door machine, the transmission belt is wound around the output end of the low-voltage motor and the rotating wheel, and a fixed block is provided on the transmission belt, and the fixed block is fixedly connected to the door knife.

[0019] In a specific embodiment, the door knife includes an externally supported door knife.

[0020] The utility model has at least the following beneficial effects:

[0021] An elevator door machine device of the present utility model uses a transmission rope to drive a first door hanging plate and a second door hanging plate. Based on the pre-designed gap between the first door hanging plate and the door knife through which the transmission rope passes, the overall space utilization rate of the door machine device is improved, making the structure of the door machine device more compact. Moreover, based on the advantage of the relatively small volume of the transmission rope, a smaller gap distance between the door knife and the first door hanging plate can be achieved, thereby maximizing the space utilization rate of the door machine device.

[0022] Furthermore, by arranging a transverse track on the door machine bottom plate, it also plays a guiding role in the transverse movement of the first door hanging plate and the second door hanging plate, improving the stability of the first door hanging plate and the second door hanging plate during transverse movement. On this basis, by arranging upper anti-detachment parts and lower anti-detachment parts on the first door hanging plate and the second door hanging plate, the effect of preventing the door hanging plate from falling off the transverse track is achieved. And when the door hanging plate has fallen off the transverse track, by abutting against or hooking the transverse track, the door hanging plate can be prevented from tipping over, thereby preventing the door hanging plate from contacting and colliding with other components to cause potential safety hazards, having good safety and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 1 It is a front view schematic diagram of the overall structure of the elevator door machine device of the present utility model;

[0025] Figure 2 For Figure 1 Detail A in

[0026] Figure 3 It is a three-dimensional schematic diagram of the overall structure of the elevator door machine device of the present utility model;

[0027] Figure 4 For Figure 3 Detail B in

[0028] Figure 5 It is a connection schematic diagram of the first door hanging plate with the transverse guide rail and the door knife.

[0029] Reference Signs:

[0030] 1 - Door machine base plate; 2 - First door hanging plate; 3 - Second door hanging plate; 4 - Door knife; 5 - Transmission device; 51 - Transmission rope; 52 - Transmission wheel; 6 - Driving device; 61 - Low - voltage motor; 62 - Low - voltage permanent - magnet controller; 7 - Connecting piece; 8 - Horizontal track; 9 - Pulley; 10 - Upper anti - detachment piece; 11 - Lower anti - detachment piece; 12 - Door machine drag chain; 13 - Connecting piece; 14 - Limit baffle; 15 - Abutting component; 151 - Fixing piece; 152 - Flexible buffer piece; 16 - Transmission belt; 17 - Rotating wheel; 18 - Fixed block. Detailed implementation manners

[0031] In the following, various embodiments of the present utility model will be described more comprehensively. The present utility model can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present utility model to the specific embodiments disclosed herein, but the present utility model should be understood to cover all adjustments, equivalents, and / or alternative solutions that fall within the spirit and scope of the various embodiments of the present utility model.

[0032] In the following, the term "comprising" or "may comprise" that can be used in various embodiments of the present utility model indicates the presence of the disclosed functions, operations, or elements, and does not limit the addition of one or more functions, operations, or elements. Further, as used in various embodiments of the present utility model, the terms "comprising", "having" and their cognates are only intended to represent specific features, numbers, steps, operations, elements, components, or combinations of the foregoing items, and should not be construed as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing items or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing items.

[0033] In various embodiments of the present utility model, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the listed words. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0034] Expressions (such as "first", "second", etc.) used in various embodiments of the present utility model may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above - mentioned expressions do not limit the order and / or importance of the elements. The above - mentioned expressions are only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present utility model, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0035] It should be noted that, in this utility model, unless otherwise specified or defined, terms such as "installation," "connection," and "fixation" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0036] Please refer to Figures 1 to 5 The utility model provides an elevator door machine device, including: a door machine bottom plate 1, a first door hanging plate 2, a second door hanging plate 3, a door knife 4, and a transmission device 5 and a driving device 6 arranged on the door machine bottom plate 1.

[0037] Specifically, the drive device 6 drives and connects the door blade 4, driving the door blade 4 in lateral movement. The first door panel 2 and the second door panel 3 are located on the same side of the door machine base plate 1. The door blade 4 is located on the side of the first door panel 2 facing away from the door machine base plate 1. The door blade 4 is fixedly connected to the first door panel 2 via a connector 7, and a gap is formed between the door blade 4 and the first door panel 2. It can be understood that due to the fixed connection between the door blade 4 and the first door panel 2, lateral movement of the door blade 4 also drives lateral movement of the first door panel 2. The transmission device 5 includes a transmission rope 51 and two transmission wheels 52. The two transmission wheels 52 are arranged on the door machine base plate 1 at a horizontal interval. The connection between the transmission wheels 52 and the door machine base plate 1 can be either direct or indirect. The transmission rope 51 passes through the gap and is wound around the two transmission wheels 52. The transmission rope 51 is connected to the first door panel 2 and the second door panel 3, respectively, driving them in opposite lateral movements.

[0038] As can be understood, the first door plate 2 and the second door plate 3 are used to connect to the left and right doors of the elevator car door, respectively, while the door blade 4 is used to connect to the elevator landing door. During use of the device, the drive device 6 drives the door blade 4 to move laterally, which in turn drives the first door plate 2 to move laterally. Because the transmission rope 51 is connected to the first door plate 2 and the second door plate 3 and can drive them to move laterally in opposite directions, the movement of the first door plate 2 drives the transmission rope 51, which in turn drives the second door plate 3 to move laterally in the opposite direction of the movement of the first door plate 2, thereby driving the left and right doors of the elevator car door to move laterally in opposite directions, thereby opening and closing the car door. Specifically, the lateral transmission direction of the transmission rope 51 changes after it passes around the transmission wheel 52. Therefore, the first and second door plates 2 and 3 can be connected to different parts of the transmission rope 51 with different transmission directions, thereby achieving opposite lateral movement between the first and second door plates 2 and 3.

[0039] Understandably, compared with the prior art, the present utility model adopts a front-mounted design of the transmission rope 51, that is, the transmission rope 51 is located between the door knife 4 and the first door hanging plate 2, thereby improving the overall space utilization rate of the door machine device and making the structure of the door machine device more compact. Moreover, through the transmission of the transmission rope 51, the advantage of the smaller volume of the transmission rope 51 is utilized, and a smaller gap distance between the door knife 4 and the first door hanging plate 2 can be achieved, which is convenient for maximizing the space utilization rate of the door machine device.

[0040] Optionally, the gap distance between the door knife 4 and the first door hanging plate 2 can be flexibly set according to the actual situation and will not be specifically limited here. In other embodiments, the transmission rope 51 can also be replaced by a flexible or flexible transmission member such as a transmission belt.

[0041] In a specific embodiment, please refer to Figure 3 , a transverse track 8 is provided on the door machine bottom plate 1, and both the first door hanging plate 2 and the second door hanging plate 3 are slidably connected to the transverse track 8, so as to play a guiding role in the transverse movement of the first door hanging plate 2 and the second door hanging plate 3 and improve the stability of the first door hanging plate 2 and the second door hanging plate 3 during transverse movement. Exemplarily, the first door hanging plate 2 and the second door hanging plate 3 can each be slidably connected to the transverse track 8 through one or more pulleys 9, and the cross-section of the transverse track 8 can be in the Figure 3 class "U" - shaped structure shown in, so as to enhance the structural strength of the transverse track 8. Two transmission wheels 52 can be fixedly arranged at both ends of the transverse track 8, so as to realize the indirect connection with the door machine bottom plate 1.

[0042] Preferably, the transverse track 8 can be a cold-rolled guide rail, so that the service life of the guide rail is longer and the corrosion resistance is better. Preferably, the transverse track 8 can be fixed on the door machine bottom plate 1 through standard parts to improve its installation strength. Exemplarily, the standard parts can include hexagon head bolts and blind rivet nuts.

[0043] Furthermore, at least one of the first door hanging plate 2 and the second door hanging plate 3 is also provided with an upper anti - detachment member 10 and / or a lower anti - detachment member 11 on the side facing the door machine bottom plate 1. Preferably, both the first door hanging plate 2 and the second door hanging plate 3 are provided with an upper anti - detachment member 10 and a lower anti - detachment member 11 on the side facing the door machine bottom plate 1.

[0044] Specifically, please refer to Figure 5, the upper anti - detachment member 10 is close to and surrounds the upper part of the horizontal rail 8, and the lower anti - detachment member 11 is close to and surrounds the lower part of the horizontal rail 8. Both the upper anti - detachment member 10 and the lower anti - detachment member 11 are used to prevent the door hanging plate from detaching from the horizontal rail 8. Understandably, when the door hanging plate is affected by external impact or other factors, it can abut against or hook the horizontal rail 8 through the upper anti - detachment member 10 and / or the lower anti - detachment member 11, thereby preventing the door hanging plate from falling off the horizontal rail 8. If the impact is relatively severe and the door hanging plate has fallen off the horizontal rail 8, it can also prevent the door hanging plate from tipping by abutting against or hooking the horizontal rail 8, thereby preventing the door hanging plate from contacting and colliding with other components and causing potential safety hazards.

[0045] Exemplarily, the upper anti - detachment member 10 and the lower anti - detachment member 11 can be in the Figure 5 hook - like structure shown. The upper anti - detachment member 10 surrounds the upper part of the horizontal rail 8, and one end extends downward and is located on the side of the horizontal rail 8 away from the door hanging plate. The lower anti - detachment member 11 surrounds the lower part of the horizontal rail 8, and one end extends upward and is located on the side of the horizontal rail 8 away from the door hanging plate. In other embodiments, the upper anti - detachment member 10 and the lower anti - detachment member 11 can also be other structures, and no specific limitation is made thereto.

[0046] In a specific embodiment, it further includes a door machine drag chain 12 for guiding the cable. The first door hanging plate 2 and the second door hanging plate 3 are each connected to the door machine bottom plate 1 through a door machine drag chain 12.

[0047] Exemplarily, please refer to Figure 1 , the first door hanging plate 2 and the second door hanging plate 3 are each connected to a door machine drag chain 12 through a connecting piece 13. The end of the door machine drag chain 12 away from the connecting piece 13 is connected to the upper end of the door machine bottom plate 1, so that the door machine drag chain 12 is in a "U" shape, and its two parallel sides are horizontally arranged.

[0048] Understandably, the door machine drag chain 12 will deform as the door hanging plate moves, but its overall shape will still be in a "U" shape, thus not affecting the movement of the door hanging plate. In practical applications, there are some cables in the door machine system, such as light curtain cables. During the frequent opening and closing of the elevator door, the cables will experience repeated bending and stretching. By fixing the cables therein, the door machine drag chain 12 can provide a path for the cables to bend and stretch, and prevent the cables from being directly exposed to the external environment, avoiding cable wear, breakage and signal interference.

[0049] In a specific embodiment, please refer to Figure 1 and Figure 2, on both the left and right sides of the first door hanging plate 2 and the second door hanging plate 3 on the door machine bottom plate 1, there are provided limit baffles 14, and the limit baffles 14 are used to limit the lateral movement of the first door hanging plate 2 or the second door hanging plate 3. Specifically, when in use, when the first door hanging plate 2 and the second door hanging plate 3 move to contact the limit baffle 14, the limit baffle 14 can limit the further movement of the first door hanging plate 2 and the second door hanging plate 3.

[0050] Furthermore, at the positions corresponding to the limit baffle 14 on the first door hanging plate 2 and the second door hanging plate 3, there are also provided abutting components 15 for abutting and cooperating with the limit baffle 14. Specifically, please refer to Figure 2 , the abutting component 15 may include a connecting piece 13, a fixing member 151 and a flexible buffer member 152. The connecting piece 13 is fixedly connected to the first door hanging plate 2 or the second door hanging plate 3. A through hole (not shown in the figure) is provided on the connecting piece 13. The flexible buffer member 152 is inserted through the through hole and can move laterally, and the fixing member 151 is used to fix the lateral position of the flexible buffer member 152. The flexible buffer member 152 is used to abut and contact the limit baffle 14, and plays a buffering role while in limit cooperation.

[0051] It can be understood that when in use, by laterally moving the flexible buffer member 152, after adjusting the lateral position of the flexible buffer member 152, the position of the flexible buffer member 152 can be fixed by the fixing member 151, so as to adjust the limit cooperation effect with the limit baffle 14, which has good flexibility.

[0052] Optionally, the flexible buffer member 152 may be entirely flexible, or only the part in contact with the limit baffle 14 may be flexible.

[0053] In a specific embodiment, please refer to Figure 1 and Figure 3 , the driving device 6 may include a low-voltage motor 61 and a low-voltage permanent magnet controller 62 provided on the door machine bottom plate 1. The low-voltage motor 61 is drivingly connected to the door knife 4, the low-voltage permanent magnet controller 62 is signal-connected to the low-voltage motor 61, and a Bluetooth module is provided in the low-voltage permanent magnet controller 62.

[0054] Specifically, the low-voltage motor 61 may be a 36V low-voltage motor, which can be electrically isolated from the 220v mains power supply, thus being safer and capable of achieving smaller electromagnetic radiation interference. Due to the setting of the Bluetooth module in the low-voltage permanent magnet controller 62, it can communicate with an external controller such as a mobile phone. Therefore, various preset parameters in the low-voltage permanent magnet controller 62 can be conveniently set, and parameters and other data can be sent to the external controller based on the Bluetooth module to display the parameters and other data on the external controller, improving the visualization degree.

[0055] Further, it further includes a transmission belt 16 and a rotating wheel 17 disposed on the door machine base plate 1. The rotating wheel 17 is at the same horizontal height as the low-voltage motor 61. The transmission belt 16 is wound around the output end of the low-voltage motor 61 and the rotating wheel 17. A fixing block 18 is provided on the transmission belt 16, and the fixing block 18 is fixedly connected to the door knife 4. Thus, the low-voltage motor 61 can drive the door knife 4 connected to the transmission belt 16 to move horizontally to the left or right by forward rotation or reverse rotation.

[0056] In a specific embodiment, the door knife 4 may include an outrigger door knife. The outrigger door knife has the advantages of compact structure, high space utilization rate, convenient installation, debugging and subsequent maintenance, etc., which is convenient for further improving the space utilization rate of the door machine device of the present utility model. In addition, when the outrigger door knife is opened and closed, it can generate sufficient force and movement trajectory, so as to ensure that the landing door can be opened and closed smoothly and smoothly, especially the movement is smoother and more fluent at the initial stage of opening the door and the end stage of closing the door.

[0057] To sum up, for an elevator door machine device of the present utility model, a transmission rope 51 is used to drive the first door hanging plate 2 and the second door hanging plate 3. Based on the pre-set design that the transmission rope 51 passes through the gap between the first door hanging plate 2 and the door knife 4, the overall space utilization rate of the door machine device is improved, and the structure of the door machine device is made more compact. And, based on the advantage of the small volume of the transmission rope 51, a smaller gap distance between the door knife 4 and the first door hanging plate 2 can be achieved, so as to maximize the space utilization rate of the door machine device.

[0058] Further, by providing a horizontal track 8 on the door machine base plate 1, it also plays a guiding role in the horizontal movement of the first door hanging plate 2 and the second door hanging plate 3, and improves the stability of the first door hanging plate 2 and the second door hanging plate 3 during horizontal movement. On this basis, by providing an upper anti-disengagement member 10 and a lower anti-disengagement member 11 on the first door hanging plate 2 and the second door hanging plate 3, the effect of preventing the door hanging plate from falling off the horizontal track 8 is achieved, and when the door hanging plate has fallen off the horizontal track 8, by abutting against or hooking the horizontal track 8, the door hanging plate can be prevented from tipping over, so as to prevent the door hanging plate from contacting and colliding with other components and causing potential safety hazards, having good safety and use experience.

[0059] Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily essential for implementing the present utility model.

[0060] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more devices different from the present implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0061] The above serial numbers of the present utility model are only for description and do not represent the advantages or disadvantages of the implementation scenarios.

[0062] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An elevator door machine device, characterized in that, include: A door machine bottom plate, a first door hanging plate, a second door hanging plate, a door knife, and a transmission device and a driving device arranged on the door machine bottom plate; The driving device is connected to the door knife and is used to drive the door knife to move horizontally; The first door hanging plate and the second door hanging plate are located on the same side of the door machine bottom plate, the door knife is located on the side of the first door hanging plate facing away from the door machine bottom plate, the door knife is fixedly connected to the first door hanging plate by a connecting member, and a gap is formed between the door knife and the first door hanging plate; The transmission device includes a transmission rope and two transmission wheels, and the two transmission wheels are arranged on the door machine bottom plate along the horizontal interval. The transmission rope passes through the gap and is wound around the two transmission wheels; the transmission rope is respectively connected to the first door hanging plate and the second door hanging plate, and is used to drive the two to move horizontally in opposite directions.

2. The elevator door machine device according to claim 1, wherein A transverse track is provided on the door machine bottom plate, and the first door hanging plate and the second door hanging plate are both slidably connected to the transverse track; the two transmission wheels are fixedly provided at both ends of the transverse track.

3. The elevator door machine device according to claim 2, wherein, At least one of the first door hanging plate and the second door hanging plate is provided with an upper anti-slip part and / or a lower anti-slip part on the side facing the door machine bottom plate; the upper anti-slip part is close to and surrounds the upper part of the transverse track, and the lower anti-slip part is close to and surrounds the lower part of the transverse track.

4. An elevator door machine device according to claim 1, characterized in that It also includes a door machine drag chain for guiding cables, and the first door hanging plate and the second door hanging plate are each connected to the door machine bottom plate through a door machine drag chain.

5. An elevator door machine device according to claim 1, characterized in that, Limit baffles are provided on the left and right sides of the first door hanging plate and the left and right sides of the second door hanging plate on the door machine bottom plate, and the limit baffles are used to limit the lateral movement of the first door hanging plate or the second door hanging plate.

6. An elevator door machine device according to claim 5, characterized in that, Positions on the first door hanging plate and the second door hanging plate corresponding to the limit baffle are both provided with abutment components for abutting and cooperating with the limit baffle.

7. An elevator door machine device according to claim 6, characterized in that, The abutment assembly includes a connecting piece, a fixing piece and a flexible buffer piece; The connecting piece is fixedly connected to the first door hanging plate or the second door hanging plate. A through hole is opened on the connecting piece. The flexible buffer is passed through the through hole and can move laterally. The fixing piece is used to fix the lateral position of the flexible buffer.

8. An elevator door machine device according to claim 1, characterized in that, The driving device includes a low-voltage motor and a low-voltage permanent magnet controller arranged on the door machine base plate. The low-voltage motor is driven to connect to the door knife. The low-voltage permanent magnet controller signal is connected to the low-voltage motor. A Bluetooth module is provided in the low-voltage permanent magnet controller.

9. The elevator door machine device according to claim 8, characterized in that, It also includes a transmission belt and a rotating wheel arranged on the bottom plate of the door machine. The transmission belt is wound around the output end of the low-voltage motor and the rotating wheel. A fixing block is provided on the transmission belt, and the fixing block is fixedly connected to the door knife.

10. The elevator door machine device according to claim 1, characterized in that, The door knife includes an externally supported door knife.

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