Transmission device of elevator door machine and elevator door machine having the same

Abstract

The present invention relates to the technical field of elevator transmission devices, and in particular to a transmission device of an elevator door machine and an elevator door machine having the same. The transmission device of the elevator door machine includes a driving member, a driving wheel, a driven wheel and a transmission belt assembly; the driving wheel is connected to the driving member, one end of the transmission belt assembly is sleeved on the driving wheel, and the other end is sleeved on the driven wheel; and under the drive of the driving member, the transmission belt assembly can move around the driving wheel and the driven wheel; the transmission belt assembly includes a steel wire rope, a toothed belt and at least two connecting clips, the steel wire rope is wound around the driven wheel, and both ends of the steel wire rope extend toward the driving wheel, the toothed belt is wound around the driving wheel, and both ends of the toothed belt extend toward the driven wheel; one end of the steel wire rope is connected to one end of the corresponding toothed belt through a connecting clip, and the other end of the steel wire rope is connected to the other end of the corresponding toothed belt through a connecting clip. The advantages of the present invention are: low noise, low cost, simple structure and stable transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator transmission devices, and in particular to a transmission device of an elevator door machine and an elevator door machine having the same. Background Art

[0002] The transmission device of the existing elevator door machine generally adopts the method of meshing a toothed wheel and a toothed synchronous belt as a whole to realize the conversion of the motor force into the door machine traction force.

[0003] However, this type of toothed wheel and toothed synchronous belt meshing method has too large a friction area during the transmission meshing process and is costly. At the same time, it is very easy to generate friction noise due to factors such as dust accumulation and aging of the synchronous belt, thereby reducing the comfort of passengers. Summary of the invention

[0004] In view of this, in order to solve the above technical problems, it is necessary to provide a transmission device of an elevator door machine with low noise, low cost, simple structure and stable transmission, and an elevator door machine having the same.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] A transmission device for an elevator door machine, comprising a driving member, a driving wheel, a driven wheel and a transmission belt assembly; the driving wheel is connected to the driving member, one end of the transmission belt assembly is sleeved on the driving wheel, and the other end is sleeved on the driven wheel; and under the drive of the driving member, the transmission belt assembly can move around the driving wheel and the driven wheel;

[0007] The transmission belt assembly includes a steel wire rope, a toothed belt and at least two connecting clips. The steel wire rope is wound around the driven wheel, and both ends of the steel wire rope extend toward the driving wheel. The toothed belt is wound around the driving wheel, and both ends of the toothed belt extend toward the driven wheel. One end of the steel wire rope is connected to one end of the corresponding toothed belt through the connecting clip, and the other end of the steel wire rope is connected to the other end of the corresponding toothed belt through the connecting clip.

[0008] In the present application, by providing a toothed belt, a steel wire rope and a connecting clamp, the toothed belt and the steel wire rope can be connected by the connecting clamp, and different meshing modes are formed between the toothed belt and the driving wheel, and between the steel wire rope and the driven wheel. The two different meshing modes can be firmly connected by the connecting clamp, so that the driving wheel end can retain the provision of transmission force. At the same time, through the meshing of the steel wire rope with the driven wheel, the friction noise generated by the existing tooth meshing can be effectively reduced, thereby improving the comfort of passengers; and the use of steel wire rope can greatly reduce costs.

[0009] In one embodiment, the connecting clamp is located between the driving wheel and the driven wheel, and can move between the driving wheel and the driven wheel under the drive of the driving member.

[0010] With such a configuration, the connecting clamp is located between the driving wheel and the driven wheel, and can be moved between the driving wheel and the driven wheel under the drive of the driving member. The setting of the position of the connecting clamp can ensure that the connecting clamp moves on its side and will not move to the driving wheel and the driven wheel, thereby avoiding the connecting clamp from interfering with the operation of the transmission belt assembly.

[0011] In one embodiment, the connecting clamp includes a mounting body and a plug-in body, part of the steel wire rope can be snapped onto one end of the mounting body, part of the toothed belt can be snapped onto the other end of the mounting body, and part of the plug-in body can be plugged into the mounting body to fix the steel wire rope and the toothed belt.

[0012] With such an arrangement, the steel wire rope and the toothed belt are positioned with the mounting body by means of a clip-on connection, the structure is simple, and the installation is convenient and the operation is simple. After the steel wire rope and the toothed belt are clipped with the mounting body, the plug-in body is inserted into the mounting body to press and fix the steel wire rope and the toothed belt, thereby preventing the risk of the steel wire rope or the toothed belt slipping out of the connecting clamp, ensuring the stability of the connection, and enabling the transmission device of the elevator door machine to operate effectively and stably.

[0013] In one embodiment, a first mounting groove and a second mounting groove are respectively provided at both ends of the mounting body, part of the wire rope can be snapped into the first mounting groove, part of the toothed belt can be snapped into the second mounting groove, and part of the plug-in body can be plugged into the first mounting groove and the second mounting groove respectively.

[0014] With such arrangement, the plug-in body can compress and fix the steel wire rope in the first installation groove and the toothed belt in the second installation groove, which is convenient for positioning the steel wire rope and the toothed belt, and can increase the stability of the connection between the steel wire rope and the toothed belt and the connecting clamp.

[0015] In one of the embodiments, the transmission belt assembly further includes two joints, one joint being installed at each end of the steel wire rope, and one end of the joint away from the steel wire rope can be snapped into the first installation groove.

[0016] With such arrangement, the two ends of the steel wire rope are compressed and connected through the joint and the connecting clamp, and the arrangement of the joint facilitates the connection between the steel wire rope and the connecting clamp.

[0017] In one embodiment, a step is formed on the inner wall of the first mounting groove, and the joint has a connecting portion and a mounting portion. One end of the connecting portion is connected to the wire rope, and the other end is connected to the mounting portion. The mounting portion is installed in the first mounting groove and abuts against the step.

[0018] In this way, the step can prevent the mounting portion of the joint from falling out of the first mounting groove, thereby enhancing the stability of the connection between the steel wire rope and the connecting clamp.

[0019] In one embodiment, the plug-in body includes a mounting plate, a first plug-in plate and a second plug-in plate, the first plug-in plate and the second plug-in plate are installed at intervals on one side surface of the mounting plate, the first plug-in plate can be plugged into the first mounting groove to fix the joint; the second plug-in plate can be plugged into the second mounting groove to fix the toothed belt.

[0020] With such arrangement, the first plug plate and the second plug plate respectively fix the joint and the toothed belt, thereby achieving a tight connection between the wire rope, the toothed belt and the connecting clamp, so that the transmission belt assembly can operate stably and efficiently. At the same time, the stable and efficient operation of the transmission belt assembly can achieve the effect of reducing noise at the driven wheel end.

[0021] In one embodiment, the second plug-in board has a mating surface, and the second mounting groove has a guiding surface. The mating surface can be guided by the guiding surface to plug the second plug-in board into the second mounting groove.

[0022] Such an arrangement facilitates the second plug-in board to be installed in the second installation groove more smoothly, thereby achieving compression and fixation of the toothed belt.

[0023] In one embodiment, the mounting plate is provided with a plurality of first mounting holes, the mounting body is correspondingly provided with a plurality of second mounting holes, and the transmission device of the elevator door machine also includes a plurality of locking members; when the plug-in body is plugged into the mounting body, the plurality of first mounting holes correspond one-to-one with the plurality of second mounting holes, and the locking member can pass through the first mounting hole and extend into the second mounting hole to lock the mounting body and the plug-in body.

[0024] With such arrangement, the mounting body and the plug-in body can be tightly connected through the locking member, thereby achieving a tight connection between the wire rope and the toothed belt and the connecting clamp, and preventing the wire rope or the toothed belt from escaping from the connecting clamp.

[0025] The present application also provides an elevator door machine, comprising the transmission device of the elevator door machine described above.

[0026] Compared with the prior art, the present application provides a transmission device for an elevator door machine, which, by providing a toothed belt, a steel wire rope and a connecting clamp, can connect the toothed belt and the steel wire rope through the connecting clamp, and form different meshing modes between the toothed belt and the driving wheel, and between the steel wire rope and the driven wheel. The two different meshing modes can be firmly connected through the connecting clamp, so that the driving wheel end can retain the provision of transmission force. At the same time, through the meshing of the steel wire rope with the driven wheel, the friction noise generated by the existing tooth meshing can be effectively reduced, thereby improving the comfort of passengers; and the use of steel wire rope can greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of the elevator door machine provided for this application.

[0028] Figure 2 A schematic diagram of the structure of the transmission device of the elevator door machine provided in this application.

[0029] Figure 3 for Figure 2 Partial schematic diagram at point A in the middle.

[0030] Figure 4 This is a schematic diagram of the connection between the wire rope and the joint.

[0031] Figure 5 This is a schematic diagram of the structure of the connecting clip provided in this application.

[0032] Figure 6 This is a schematic diagram of the structure of the installation body provided in this application.

[0033] Figure 7 for Figure 6 Top view of the .

[0034] Figure 8 for Figure 6 Right view of .

[0035] Fig. 9 This is a schematic diagram of the structure of the plug-in body provided in this application.

[0036] Fig.10 for Fig. 9 Right view of .

[0037] In the figure, 100, the transmission device of the elevator door machine; 10, the driving member; 20, the driving wheel; 30, the driven wheel; 40, the transmission belt assembly; 41, the wire rope; 42, the toothed belt; 43, the connecting clamp; 431, the mounting body; 4311, the first mounting groove; 4312, the step; 4313, the second mounting groove; 4314, the guide surface; 4315, the second mounting hole; 432, the plug-in body; 4321, the mounting plate; 4322, the first mounting hole; 4323, the first plug-in plate; 4324, the second plug-in plate; 4325, the matching surface; 433, the joint; 4331, the connecting part; 4332, the mounting part; 50, the locking member; 60, the elevator door machine; 61, the first transmission arm; 62, the second transmission arm; 63, the first hanging plate; 64, the second hanging plate; 65, the door machine bottom plate; 66, the bracket. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0041] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the elevator door machine 60 provided in this application. Figure 2 The present application provides a transmission device 100 for an elevator door machine, which is used to realize the door opening and closing actions of the elevator door machine 60.

[0042] In the transmission device of the existing elevator door machine, the driving wheel end and the driven wheel end generally adopt the method of meshing of toothed wheels and toothed synchronous belts to realize the conversion of motor force into door machine traction force. However, this method of meshing of toothed wheels and toothed synchronous belts has too large a friction area during the transmission meshing process and is costly. At the same time, under the induction of factors such as dust accumulation and aging of synchronous belts, friction noise is easily generated, thereby reducing the comfort of passengers.

[0043] See also Figure 2 The transmission device 100 of the elevator door machine provided in the present application includes a driving member 10, a driving wheel 20, a driven wheel 30 and a transmission belt assembly 40; the driving wheel 20 is connected to the driving member 10, one end of the transmission belt assembly 40 is sleeved on the driving wheel 20, and the other end is sleeved on the driven wheel 30; and, under the drive of the driving member 10, the transmission belt assembly 40 can move around the driving wheel 20 and the driven wheel 30.

[0044] In the present application, the driving member 10 is a motor, the driving wheel 20 is a toothed wheel, and the driven wheel 30 is a wire rope wheel.

[0045] For further information, see Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the transmission device 100 of the elevator door machine provided in this application. Figure 3 for Figure 2 Partial schematic diagram at A in the middle. The transmission belt assembly 40 includes a steel wire rope 41, a toothed belt 42 and at least two connecting clips 43. The steel wire rope 41 is wound around the driven wheel 30, and both ends of the steel wire rope 41 extend toward the driving wheel 20. The toothed belt 42 is wound around the driving wheel 20, and both ends of the toothed belt 42 extend toward the driven wheel 30. One end of the steel wire rope 41 is connected to one end of the corresponding toothed belt 42 through the connecting clip 43, and the other end of the steel wire rope 41 is connected to the other end of the corresponding toothed belt 42 through the connecting clip 43.

[0046] By providing a toothed belt 42, a steel wire rope 41 and a connecting clamp 43, the toothed belt 42 and the steel wire rope 41 can be connected via the connecting clamp 43, and different meshing modes are formed between the toothed belt 42 and the driving wheel 20, and between the steel wire rope 41 and the driven wheel 30. The two different meshing modes can be firmly connected via the connecting clamp 43, so that the driving wheel 20 end can retain the provision of transmission force. At the same time, through the meshing of the steel wire rope 41 and the driven wheel 30, the friction noise generated by the existing tooth meshing can be effectively reduced, thereby improving the comfort of the passengers; and the use of the steel wire rope 41 can greatly reduce costs.

[0047] In the present application, the number of the connecting clips 43 is two; of course, in other embodiments, the number of the connecting clips 43 can also be set to other numbers as long as the same connection effect can be achieved, such as the number of the connecting clips 43 is three, four or five.

[0048] Specifically, the connecting clamp 43 is located between the driving wheel 20 and the driven wheel 30, and can be moved between the driving wheel 20 and the driven wheel 30 under the drive of the driving member 10. The setting of the position of the connecting clamp 43 can ensure that the connecting clamp 43 moves on its side and will not move to the driving wheel 20 and the driven wheel 30, thereby avoiding the connecting clamp 43 from interfering with the operation of the transmission belt assembly 40.

[0049] See also Figure 5 , Figure 5 The schematic diagram of the structure of the connection clamp 43 provided in the present application. The connection clamp 43 includes a mounting body 431 and a plug-in body 432. A portion of the steel wire rope 41 can be snapped onto one end of the mounting body 431, a portion of the toothed belt 42 can be snapped onto the other end of the mounting body 431, and a portion of the plug-in body 432 can be plugged into the mounting body 431 to fix the steel wire rope 41 and the toothed belt 42. The steel wire rope 41 and the toothed belt 42 are both snapped onto the mounting body 431 to be positioned. The structure is simple, and the installation is convenient and the operation is simple. After the steel wire rope 41 and the toothed belt 42 are snapped onto the mounting body 431, the plug-in body 432 is plugged into the mounting body 431 to compress and fix the steel wire rope 41 and the toothed belt 42, thereby preventing the risk of the steel wire rope 41 or the toothed belt 42 slipping out of the connection clamp 43, ensuring the stability of the connection, and enabling the transmission device 100 of the elevator door machine to operate effectively and stably.

[0050] For further information, see Figure 6-Figure 8 , Figure 6 This is a schematic diagram of the structure of the installation body 431 provided in this application. Figure 7 for Figure 6 A top view of Figure 8 for Figure 6 The mounting body 431 has a first mounting groove 4311 and a second mounting groove 4313 at both ends thereof, and a portion of the steel wire rope 41 can be snapped into the first mounting groove 4311, and a portion of the toothed belt 42 can be snapped into the second mounting groove 4313. A portion of the plug-in body 432 can be plugged into the first mounting groove 4311 and the second mounting groove 4313, respectively. The plug-in body 432 can press and fix the steel wire rope 41 in the first mounting groove 4311 and the toothed belt 42 in the second mounting groove 4313, which facilitates the positioning of the steel wire rope 41 and the toothed belt 42, and can increase the stability of the connection between the steel wire rope 41 and the toothed belt 42 and the connecting clamp 43.

[0051] See also Figure 4, Figure 4 4 is a schematic diagram of the connection between the steel wire rope 41 and the joint 433. The transmission belt assembly 40 also includes two joints 433, one joint 433 is installed at each end of the steel wire rope 41, and the end of the joint 433 away from the steel wire rope 41 can be clamped in the first installation groove 4311. The setting of the joint 433 facilitates the connection between the steel wire rope 41 and the connecting clamp 43, and both ends of the steel wire rope 41 are compressed and connected through the joint 433 and the connecting clamp 43.

[0052] For further information, see Figure 3 The connector 433 has a connecting portion 4331 and a mounting portion 4332, both of which are cylindrical, and the shape of the first mounting groove 4311 is matched with the shape of the connector 433, so that the connector 433 can be installed in the first mounting groove 4311; a step 4312 is formed on the inner wall of the first mounting groove 4311, one end of the connecting portion 4331 is connected to the steel wire rope 41, and the other end is connected to the mounting portion 4332, and the mounting portion 4332 is installed in the first mounting groove 4311 and abuts against the step 4312. The setting of the step 4312 can prevent the mounting portion 4332 of the connector 433 from falling out of the first mounting groove 4311, thereby enhancing the stability of the connection between the steel wire rope 41 and the connecting clamp 43.

[0053] In the present application, the shape of the second mounting groove 4313 is adapted to the toothed belt 42 , so that the toothed belt 42 can be smoothly inserted into the second mounting groove 4313 to be connected with the connecting clip 43 .

[0054] See also Fig. 9 and Fig.10 , Fig. 9 This is a schematic diagram of the structure of the plug-in body 432 provided in this application. Fig.10 for Fig. 9 The plug-in body 432 includes a mounting plate 4321, a first plug-in board 4323 and a second plug-in board 4324. The first plug-in board 4323 and the second plug-in board 4324 are installed on one side of the mounting plate 4321 at intervals. The shape of the first plug-in board 4323 is an arc shape adapted to the shape of the joint 433. The first plug-in board 4323 can be plugged into the first mounting groove 4311 to fix the joint 433. The shape of the second plug-in board 4324 is roughly a rectangular parallelepiped. The second plug-in board 4324 can be plugged into the second mounting groove 4313 to squeeze and fix the toothed belt 42. The first plug-in plate 4323 and the second plug-in plate 4324 fix the joint 433 and the toothed belt 42 respectively, thereby achieving a tight connection between the wire rope 41 and the toothed belt 42 and the connecting clamp 43, so that the transmission belt assembly 40 can operate stably and effectively. At the same time, the stable and effective operation of the transmission belt assembly 40 can achieve the effect of reducing noise at the driven wheel 30 end.

[0055] For further information, see Figure 7-10 The second plug-in board 4324 has a mating surface 4325, and the second mounting groove 4313 has a guide surface 4314. The mating surface 4325 can be guided by the guide surface 4314 to plug the second plug-in board 4324 into the second mounting groove 4313. This facilitates the second plug-in board 4324 to be installed in the second mounting groove 4313 more smoothly, thereby achieving compression and fixation of the toothed belt 42.

[0056] See also Figure 6 and Fig. 9 The mounting plate 4321 is provided with a plurality of first mounting holes 4322, and the mounting body 431 is correspondingly provided with a plurality of second mounting holes 4315. The transmission device 100 of the elevator door machine further includes a plurality of locking members 50. When the plug-in body 432 is plugged into the mounting body 431, the plurality of first mounting holes 4322 correspond to the plurality of second mounting holes 4315 one by one, and the locking members 50 can penetrate the first mounting holes 4322 and extend into the second mounting holes 4315 to lock the mounting body 431 and the plug-in body 432. The locking members 50 can tightly connect the mounting body 431 and the plug-in body 432, thereby realizing a tight connection between the steel wire rope 41 and the toothed belt 42 and the connecting clamp 43, and preventing the steel wire rope 41 or the toothed belt 42 from coming out of the connecting clamp 43.

[0057] Furthermore, the first mounting hole 4322 is cylindrical, and the second mounting hole 4315 is triangular prism. In the present application, the locking member 50 is a self-tapping screw.

[0058] In the present application, the material of the connecting clip 43 is PA66 nylon, so that the rigidity, toughness, mechanical shock absorption and wear resistance of the connecting clip 43 are better.

[0059] See also Figure 1 The present application also provides an elevator door machine 60, including the transmission device 100 of the above elevator door machine.

[0060] The elevator door machine 60 includes a first transmission arm 61, a second transmission arm 62, a first hanging plate 63 and a second hanging plate 64. The first transmission arm 61 and the second transmission arm 62 are respectively connected to different sides of the transmission belt assembly 40. One end of the first transmission arm 61 is connected to the wire rope 41, and the other end of the first transmission arm 61 is connected to the first hanging plate 63; one end of the second transmission arm 62 is connected to the toothed belt 42, and the other end of the second transmission arm 62 is connected to the second hanging plate 64.

[0061] The operation of the driving member 10 causes the transmission belt assembly 40 to move, and the transmission belt assembly 40 can drive the first transmission arm 61 and the second transmission arm 62 to move synchronously. The synchronous movement of the first transmission arm 61 and the second transmission arm 62 can drag the first hanging plate 63 and the second hanging plate 64 respectively, thereby realizing the opening or closing action of the elevator door machine 60.

[0062] Furthermore, the elevator door machine 60 also includes a door machine bottom plate 65 and a bracket 66 , and the driving member 10 is fixed to the door machine bottom plate 65 via the bracket 66 .

[0063] Specifically, one end of the first transmission arm 61 connected to the wire rope 41 is fixed by bolts, and one end of the second transmission arm 62 connected to the toothed belt 42 is fixed by a pressure plate, so that the connection between the first transmission arm 61, the second transmission arm 62 and the transmission belt assembly 40 can be more stable.

[0064] When the driving member 10 is working, it drives the toothed belt 42 and the wire rope 41 to move synchronously, and then drives the first hanging plate 63 and the second hanging plate 64 to move respectively through the first transmission arm 61 and the second transmission arm 62, thereby realizing the opening and closing actions of the elevator door machine 60.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0066] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A transmission device for an elevator door operator, comprising a driving member, a driving pulley, a driven pulley, and a transmission belt assembly; the driving pulley is connected to the driving member, one end of the transmission belt assembly is sleeved around the driving pulley, and the other end is sleeved around the driven pulley; and, driven by the driving member, the transmission belt assembly is capable of moving around the driving pulley and the driven pulley; It is characterized by: The transmission belt assembly includes a steel wire rope, a toothed belt and at least two connecting clamps. The steel wire rope is wound around the driven wheel, and both ends of the steel wire rope extend toward the driving wheel. The toothed belt is wound around the driving wheel, and both ends of the toothed belt extend toward the driven wheel. One end of the steel wire rope is connected to one end of the corresponding toothed belt through the connecting clamp, and the other end of the steel wire rope is connected to the other end of the corresponding toothed belt through the connecting clamp.

2. The transmission device of the elevator door machine according to claim 1, characterized in that: The connecting clamp is located between the driving wheel and the driven wheel, and can move between the driving wheel and the driven wheel under the drive of the driving member.

3. The transmission device of the elevator door machine according to claim 1, characterized in that: The connecting clamp includes a mounting body and an inserting body. Part of the steel wire rope can be clamped to one end of the mounting body, part of the toothed belt can be clamped to the other end of the mounting body, and part of the inserting body can be inserted into the mounting body to fix the steel wire rope and the toothed belt.

4. The transmission device of the elevator door machine according to claim 3, characterized in that: A first mounting groove and a second mounting groove are respectively provided at both ends of the mounting body. Part of the wire rope can be clamped in the first mounting groove, part of the toothed belt can be clamped in the second mounting groove, and part of the plug-in body can be respectively inserted into the first mounting groove and the second mounting groove.

5. The transmission device of the elevator door machine according to claim 4, characterized in that: The transmission belt assembly further comprises two joints, one of which is installed at each end of the steel wire rope, and one end of the joint away from the steel wire rope can be snapped into the first installation groove.

6. The transmission device of the elevator door machine according to claim 5, characterized in that: A step is formed on the inner wall of the first mounting groove. The joint has a connecting portion and a mounting portion. One end of the connecting portion is connected to the wire rope, and the other end is connected to the mounting portion. The mounting portion is installed in the first mounting groove and abuts against the step.

7. The transmission device of the elevator door machine according to claim 5, characterized in that: The plug-in body includes a mounting plate, a first plug-in plate and a second plug-in plate. The first plug-in plate and the second plug-in plate are installed at intervals on one side surface of the mounting plate. The first plug-in plate can be plugged into the first mounting groove to fix the joint; the second plug-in plate can be plugged into the second mounting groove to fix the toothed belt.

8. The transmission device of the elevator door machine according to claim 7, characterized in that: The second plug-in board has a matching surface, and the second installation slot has a guide surface. The matching surface can be guided by the guide surface to plug the second plug-in board into the second installation slot.

9. The transmission device of the elevator door machine according to claim 7, characterized in that: The mounting plate is provided with a plurality of first mounting holes, and the mounting body is correspondingly provided with a plurality of second mounting holes. The transmission device of the elevator door machine also includes a plurality of locking members. When the plug-in body is plugged into the mounting body, the plurality of first mounting holes correspond one-to-one with the plurality of second mounting holes. The locking member can pass through the first mounting hole and extend into the second mounting hole to lock the mounting body and the plug-in body.

10. An elevator door machine, characterized in that: A transmission device comprising an elevator door machine as described in any one of claims 1 to 9.

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