CN220011808U

CN220011808U - Coupling assembling, drive mechanism and elevator door machine

Info

Publication number: CN220011808U
Application number: CN202321106390.1U
Authority: CN
Inventors: 章文斌; 王支强
Original assignee: Hangzhou Youmai Electromechanical Technology Co ltd
Current assignee: Hangzhou Youmai Electromechanical Technology Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-11-14
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a connecting assembly, a transmission mechanism and an elevator door machine, wherein the connecting assembly comprises a first connecting plate and a second connecting plate, and the first connecting plate is attached to the second connecting plate and is connected with the second connecting plate so that the first connecting plate and the second connecting plate are mutually matched and are commonly used for clamping a toothed belt; the second connecting plate extends towards the direction deviating from the toothed belt relative to the first connecting plate and is provided with an extension convex part, the extension convex part is provided with a rope connecting part, and the rope connecting part is arranged at intervals with the first connecting plate and is used for being matched with a rope so as to limit the rope onto the second connecting plate. The connecting component can connect the toothed belt and the rope in steps, and realize synchronous movement of the toothed belt and the rope, so that the manual operation difficulty is reduced, and the connecting efficiency of the toothed belt and the rope is improved.

Description

Coupling assembling, drive mechanism and elevator door machine

Technical Field

The utility model belongs to the technical field related to elevator door systems, and particularly relates to a connecting assembly, a transmission mechanism and an elevator door machine.

Background

The rope and the toothed belt are common driving parts in elevator door systems and are matched with a driving wheel to form a driving mechanism, and the rotation of the driving wheel is utilized to realize the movement of the rope and/or the toothed belt and the power transmission.

The inventor aims at solving the problem of friction noise generated between the toothed belt and the corresponding toothed driving wheel when in transmission, and sets the driving mechanism of the elevator door machine in a form of combining the toothed belt and the rope. At present, the existing connecting component for connecting the toothed belt and the rope is arranged into a box body structure, the toothed belt and the rope are assembled on the box body at the same time, then the cover plate is used for compressing and limiting, and in the process, the rope and the toothed belt are required to be assembled on the box body at the same time; however, in actual operation, the rope needs to be wound onto the driven wheel first, the toothed belt needs to be wound onto the driving wheel first, and the rope and the toothed belt all need to be in a tensioning state, so that the assembly between the rope and the toothed belt is realized by adopting the existing box body structure, the operation difficulty when the rope and the toothed belt are preassembled onto the box body manually can be increased, and the connection efficiency between the rope and the toothed belt is reduced.

Disclosure of Invention

In view of the foregoing, there is a need for a connecting assembly, a transmission mechanism and an elevator door machine that solve the above-mentioned problems.

A connecting component for connecting a rope and a toothed belt so that the toothed belt can drive the rope to synchronously move; the connecting assembly comprises a first connecting plate and a second connecting plate, wherein the first connecting plate is attached to the second connecting plate and is connected with the second connecting plate, so that the first connecting plate and the second connecting plate are mutually matched and are commonly used for clamping the toothed belt;

the second connecting plate extends towards the direction deviating from the toothed belt relative to the first connecting plate and is provided with an extending convex part, the extending convex part is provided with a rope connecting part, and the rope connecting part is arranged at intervals with the first connecting plate and is used for being matched with a rope so as to limit the rope to the second connecting plate.

It can be understood that the toothed belt is clamped by the mutual matching of the first connecting plate and the second connecting plate, and the rope is connected by the rope connecting part on the extending convex part extending out of the first connecting plate on the second connecting plate, so that the toothed belt and the rope can be connected by the connecting assembly step by step, and the synchronous movement of the toothed belt and the rope is realized, thus, the manual operation difficulty is reduced, and the connection efficiency of the toothed belt and the rope is improved.

In one embodiment, the first connecting plate or the second connecting plate is provided with a tooth surface for being matched with the tooth surface on the tooth-shaped belt in a concave-convex mode so as to limit the tooth-shaped belt between the first connecting plate and the second connecting plate.

It can be understood that the concave-convex matching between the tooth surface and the tooth surface is used for realizing the assembly limit of the toothed belt between the first connecting plate and the second connecting plate, so that the connection strength of the connecting assembly and the toothed belt is improved, and the toothed belt has the function of improving the assembly stability of the toothed belt between the first connecting plate and the second connecting plate.

In one embodiment, the rope connection part comprises a side block opposite to the first connection plate, and the side block is provided with a through hole for the rope to pass through.

In one embodiment, the connecting assembly further comprises a first locking member detachably mounted on the first connecting plate and the second connecting plate, so that the first connecting plate is detachably connected with the second connecting plate.

It is understood that the first locking member is used to realize the connection of the first connecting plate and the second connecting plate by the clamping and disassembling, so that the connection between the first connecting plate and the second connecting plate is facilitated, and the toothed belt is further conveniently assembled between the first connecting plate and the second connecting plate.

The utility model also claims a transmission mechanism which comprises a driving wheel, a driven wheel, a toothed belt, a rope and the connecting component, wherein one end of the toothed belt bypasses the driving wheel, is connected with one end of the rope through the connecting component, and the other end of the rope bypasses the driven wheel and is connected with the other end of the toothed belt through the connecting component, so that the toothed belt can drive the rope to move at the same time.

In one embodiment, the transmission mechanism further comprises a tension adjusting assembly capable of acting on the rope and the connecting assembly to adjust the tension of the rope and the toothed belt between the driven wheel and the driving wheel.

In one embodiment, the rope connection comprises a side stop disposed opposite the first connection plate, the rope being disposed through the side stop;

the tensioning adjusting assembly comprises an elastic piece, a limiting piece and a second locking piece, wherein the elastic piece and the limiting piece are arranged at one end of the rope and are both installed on a part of the rope penetrating through the side block so that two ends of the elastic piece are abutted against the side block and the limiting piece; the second locking piece is connected to the part of the connecting rod penetrating through the side block, can displace relative to the connecting rod and lock the position, and is used for adjusting the length of the part of the connecting rod penetrating through the side block.

It can be understood that the part length of the connecting rod penetrating through the rope connecting part is adjusted by compressing the elastic piece by the limiting piece, so that the adjustment of the tensioning degree of the rope and the toothed belt between the driven wheel and the driving wheel is realized, the transmission mechanism can be matched with the connecting rod on the rope to realize the adjustment of the tensioning degree of the rope and the toothed belt, and therefore, the transmission mechanism can be conveniently assembled and applied in the elevator door machine, and the tensioning degree of the rope and the toothed belt can be conveniently adjusted.

In one embodiment, the extending convex part is marked with a mark, and the limiting part can be aligned with the mark and used as a judging standard for adjusting the rope tension.

It can be understood that the alignment between the mark on the extension convex part and the limiting piece is used for realizing the setting of the rope tensioning degree adjustment, so that the consistency of the rope tensioning degree adjustment is ensured; thus, the operation of adjusting the rope tension manually is convenient.

In one embodiment, the extending protrusion further has a flange, and the limiting member can abut against the flange, and is used as a judging standard for adjusting the rope tension.

It can be understood that the abutment between the flange on the extension convex part and the limiting part is used for realizing the setting of the adjustment of the rope tensioning degree, so that the consistency of the adjustment of the rope tensioning degree is ensured; thus, the operation of adjusting the rope tension manually is convenient.

The utility model also discloses an elevator door machine comprising the transmission mechanism.

In one embodiment, the transmission mechanism further comprises a driven wheel base, and the driven wheel base is mounted on the door machine base and is in rotary connection with the driven wheel;

the driven wheel base is provided with a limiting foot which can be in plug-in fit with the door machine base so as to guide the driven wheel base to be mounted on the door machine base.

It can be understood that the driven wheel base is guided by the plug-in fit between the upper limit foot of the driven wheel base and the door machine base, and the driven wheel base is guided to be mounted on the door machine base, so that the driven wheel base is conveniently mounted on the door machine base, and the transmission mechanism is conveniently assembled and connected on the door machine base.

Compared with the prior art, the utility model has the following beneficial effects:

the connecting component, the transmission mechanism and the elevator door machine claimed by the utility model are mutually matched with the first connecting plate to clamp the toothed belt, and the rope is connected by the rope connecting part on the extending convex part extending out of the first connecting plate on the second connecting plate, so that the connecting component can be used for connecting the toothed belt and the rope in steps and realizing synchronous movement of the toothed belt and the rope, thereby not only reducing the manual operation difficulty, but also improving the connection efficiency when the toothed belt is connected with the rope.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present utility model, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is an exploded view of a connection assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the assembled structure of the connection assembly, rope, toothed belt, and tension adjustment assembly of FIG. 1;

FIG. 3 is a schematic structural diagram of a connection assembly according to another embodiment of the present utility model;

FIG. 4 is a schematic diagram of the assembled structure of the connection assembly, rope, toothed belt, and tension adjustment assembly of FIG. 3;

FIG. 5 is a schematic diagram of a transmission mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of an elevator door machine according to an embodiment of the present utility model;

fig. 7 is an exploded view of the door operator base, the driven wheel base, and the driven wheel assembly of the present utility model.

Reference numeral, 100, connection assembly; 10. a first connection plate; 11. tooth-shaped surfaces; 20. a second connecting plate; 21. an extension protrusion; 211. a side block; 2111. a through hole; 2112. an opening; 212. marking; 213. a flange; 30. a first locking member; 200. a rope; 201. a blocking head; 202. a connecting rod; 300. a toothed belt; 301. tooth surfaces; 400. driven wheel; 410. a driven wheel base; 411. a limit foot; 412. a screw; 413. supporting feet; 500. a driving wheel; 600. a tension adjusting assembly; 601. an elastic member; 602. a limiting piece; 603. a second locking member; 1000. a transmission mechanism; 2000. and a door machine base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 2 and 4, the connection assembly 100 of the present utility model is used for connecting the rope 200 and the toothed belt 300, so that the toothed belt 300 can drive the rope 200 to move synchronously.

As shown in fig. 1 and 3, a connecting assembly 100 according to an embodiment of the present utility model includes a first connecting plate 10 and a second connecting plate 20, where the first connecting plate 10 is abutted to the second connecting plate 20 and connected to the second connecting plate 20, so that the first connecting plate 10 and the second connecting plate 20 cooperate with each other and are commonly used to clamp a toothed belt 300; wherein, the second connecting plate 20 extends towards the direction away from the toothed belt 300 relative to the first connecting plate 10 and is formed with an extension convex part 21, the extension convex part 21 is provided with a rope connecting part, and the rope connecting part is arranged at intervals with the first connecting plate 10 and is used for being matched with the rope 200 so as to limit the rope 200 to the second connecting plate 20. That is, in the connection assembly 100 of this embodiment, the connection between the first connection plate 10 and the second connection plate 20 is only used to clamp the toothed belt 300, so that the connection assembly 100 can connect the toothed belt 300 and the rope 200 in steps, and realize synchronous movement of the toothed belt 300 and the rope 200, thus not only reducing the difficulty of manual operation, but also improving the connection efficiency when the toothed belt 300 is connected with the rope 200.

The first connecting plate 10 or the second connecting plate 20 is formed with a toothed surface 11 for being in concave-convex fit with the toothed surface 301 of the toothed belt 300, so as to limit the toothed belt 300 between the first connecting plate 10 and the second connecting plate 20. In this way, the connection strength of the connection assembly 100 and the toothed belt 300 is improved, and the assembly stability of the toothed belt 300 between the first connection plate 10 and the second connection plate 20 is improved.

When the toothed surface 11 is in concave-convex fit with the tooth surface 301, the first connecting plate 10 or the second connecting plate 20 can limit the movement of the toothed belt 300 in the direction of separating from the connecting assembly 100, and the toothed belt 300 is pressed when the first connecting plate 10 and the second connecting plate 20 are connected, so that the assembly limit of the toothed belt 300 between the first connecting plate 10 and the second connecting plate 20 can be realized.

As shown in fig. 1, the tooth-shaped surface 11 is exemplarily disposed on a portion of the first connecting plate 10 for connecting with the second connecting plate 20, and correspondingly, a portion of the second connecting plate 20 for connecting with the first connecting plate 10 is disposed in a planar structure matched with the other end surface of the tooth-shaped surface 11; alternatively, the tooth surface 11 is provided on the second connection plate 20 at a portion for connection with the first connection plate 10.

The connection assembly 100 further includes a first locking member 30, where the first locking member 30 is detachably mounted on the first connection plate 10 and the second connection plate 20, so that the first connection plate 10 and the second connection plate 20 are detachably connected. That is, the first connection plate 10 and the second connection plate 20 may be detachably connected with the first locking member 30. In this way, the connection between the first connection plate 10 and the second connection plate 20 is facilitated, and thus the toothed belt 300 is conveniently assembled between the first connection plate 10 and the second connection plate 20.

Specifically, the first locking member 30 is provided as a bolt, a nut, and the first connecting plate 10 is fixed to the second connecting plate 20 by screw-fitting between the bolt and the nut. Alternatively, the first locking member 30 is provided as a binding band, and the first connection plate 10 and the second connection plate 20 are fixed to each other by binding the first connection plate 10 and the second connection plate 20 with the binding band.

As shown in fig. 1, the rope connection portion specifically includes a side block 211 disposed opposite to the first connection plate 10, and a through hole 2111 is formed in the side block 211 for the rope 200 to pass through, so that the connection between the rope 200 and the side block 211 can be achieved by passing the rope 200 through the side block 211 and then using abutment between the portion of the rope 200 passing through the side block 211 and the side block 211, which is not described herein. In the present embodiment, the side rail 211 is a mounting surface formed by bending an end portion of the extension boss 21. In other embodiments, the side rail 211 may be a mounting plate connected to the extension boss 21.

For example, in an embodiment, the portion of the rope 200 passing through the side rail 211 is formed with the stopper 201, at this time, an opening 2112 may be formed on the side rail 211, and the opening 2112 is in communication with the through hole 2111, so that the rope 200 can drive the stopper 201 to be clamped into the through hole 2111 through the opening 2112, and limit the rope 200 on the side rail 211 by using abutment between the stopper 201 and the side rail 211. In other embodiments, the portion of the cord 200 that passes through the side rail 211 may be removable with the external component, and the abutment between the external component and the side rail 211 may be used to limit the amount of cord 200 on the side rail 211.

As shown in fig. 5, a transmission mechanism 1000 according to an embodiment of the present utility model includes a driving wheel 500, a driven wheel 400, a toothed belt 300, a rope 200 and the above-mentioned connection assembly 100, wherein one end of the toothed belt 300 passes around the driving wheel 500 and is connected to one end of the rope 200 through the connection assembly 100, the other end of the rope 200 passes around the driven wheel 400 and is connected to the other end of the toothed belt 300 through the connection assembly 100, i.e. the toothed belt 300 is wound on the driving wheel 500, and the rope 200 is wound on the driven wheel 400; the number of the connecting components 100 is two, and the toothed belt 300 and the rope 200 are connected through the two connecting components 100, so that the toothed belt 300 can drive the rope 200 to move at the same time, and the two connecting components 100 are arranged up and down and are positioned between the driving wheel 500 and the driven wheel 400. The rope 200 is specifically configured as a wire rope, or other rope having sufficient strength.

The transmission mechanism 1000 further comprises a tensioning adjustment assembly 600, the tensioning adjustment assembly 600 can act on the rope 200 and the connecting assembly 100 to adjust the tensioning degree of the rope 200 and the toothed belt 300 between the driven wheel 400 and the driving wheel 500, and therefore the use requirement that the toothed belt 300 can realize power transmission when the transmission mechanism 1000 works is met.

As shown in fig. 5, the tensioning adjustment assembly 600 includes an elastic member 601, a limiting member 602 and a second locking member 603, where the elastic member 601 and the limiting member 602 are disposed at one end of the rope 200 and are both mounted on a portion of the rope 200 passing through the side rail 211, so that two ends of the elastic member 601 are abutted against the side rail 211 and the limiting member 602; at least one end of the rope 200 is connected with the connecting rod 202, and the second locking member 603 is connected to a portion of the connecting rod 202 passing through the side rail 211 and is displaceable and lockable with respect to the connecting rod 202 to adjust the length of the portion of the connecting rod 202 passing through the side rail 211. The tension of the rope 200 is adjusted by adjusting the length of the portion of the connecting rod 202 passing through the side rail 211.

Because the number of the connecting assemblies 100 in the transmission mechanism 1000 is two, in order to realize the adjustment of the tightness, the elastic member 601, the limiting member 602 and the second locking member 603 may be integrally disposed at the position where one of the connecting assemblies 100 is located, that is, the elastic member 601, the limiting member 602 and the second locking member 603 are located on the connecting rod 202 at the same time; the elastic member 601 may be disposed at a position where one of the connection assemblies 100 is located, and the second locking member 603 may be disposed at a position where the other connection assembly 100 is located, that is, the elastic member 601 and the limiting member 602 are located at one end of the rope 200, and the connecting rod 202 is located at the other end of the rope 200. And will not be described herein. Regardless of how the belt is arranged, the elastic piece 601 is abutted between the limiting piece 602 and the side block 211 to tighten and loosen the rope 200 and the toothed belt 300, and the second locking piece 603 is matched with the connecting rod 202 to adjust and lock the tightness of the elastic piece 601, so that the tightness of the transmission belt formed by the rope 200 and the toothed belt 300 is adjusted and locked. When the elastic member 601 and the limiting member 602 are located at one end of the rope 200 and the connecting rod 202 is located at the other end of the rope 200, the limiting member 602 can be used as the stopper 201 formed at the end of the rope 200.

In one embodiment, as shown in fig. 2 and 4, the elastic member 601 and the limiting member 602 are both sleeved on the portion of the connecting rod 202 passing through the side block 211, so that two ends of the elastic member 601 are abutted against the side block 211 and the limiting member 602; the second locking member 603 is connected to the connecting rod 202 and is capable of being adjusted relative to the position of the connecting rod 202 to limit the limiting member 602 to the connecting rod 202. That is, the connecting rod 202 passing through the side rail 211 is limited by abutment between the elastic member 601 and the side rail 211, thereby defining the compression position of the elastic member 601, i.e., the tension of the locking rope 200. In this embodiment, the limiting member 602 may specifically be a limiting pad.

It will be appreciated that the tension adjusting assembly 600 is disposed at the position of the connecting assembly 100, so that the transmission mechanism 1000 of this embodiment can use the cooperation between the connecting assembly 100 and the connecting rod 202 on the rope 200 to adjust the tension, that is, the transmission mechanism 1000 itself can adjust the tension of the rope 200, so that the assembly application of the transmission mechanism 1000 in the elevator door machine is facilitated, and the adjustment of the tension is facilitated.

It should be noted that, the above-mentioned elastic member 601 is specifically configured as a spring, a rubber sleeve, a bellows, etc., the second locking member 603 is specifically configured to be engaged with the connecting rod 202 in a threaded manner, so that the second locking member 603 can be adjusted and locked on the connecting rod 202, in order to prevent the second locking member 603 from being displaced on the connecting rod 202 under the pushing of the elastic restoring force of the compressed elastic member 601 after locking, specifically, two nuts may be configured to abut and be respectively assembled on the connecting rod 202 in a threaded manner, which, of course, it is also possible for a person skilled in the art to configure the second locking member 603 as one nut, and then to connect and fix the nut to the connecting rod 202 in a welded manner, which will not be explained herein.

Further, the portion of the connecting rod 202 located in the through hole 2111 of the side block 211 is limited circumferentially with the side block 211, and a plane may be formed between the portion of the side block 211 contacting with the connecting rod 202, so that the connecting rod 202 and the rope 200 cannot rotate relative to the side block 211 along with the screwing of the second locking member 603 in the process of adjusting the tightness of the rope 200, and thus, the function of conveniently adjusting the tightness of the rope 200 can be achieved.

As shown in fig. 1 and 2, in an embodiment, the extending protrusion 21 is marked with a mark 212, and the limiting member 602 can be aligned with the mark 212 and used as a judgment standard for adjusting the belt tension. That is, when the transmission mechanism 1000 adjusts the belt tension, the alignment between the mark 212 on the extension protrusion 21 and the limiting member 602 can be used to set the belt tension adjustment, so as to ensure the consistency of the belt tension adjustment; thus, the operation of manual adjustment of the tension degree of the transmission belt is facilitated.

As shown in fig. 3 and 4, in an embodiment, the extension protruding portion 21 further has a flange 213, and the limiting member 602 can abut against the flange 213, and is used as a criterion for adjusting the belt tension. That is, when the transmission mechanism 1000 adjusts the tension of the transmission belt, the abutment between the flange 213 on the extension protrusion 21 and the limiting member 602 can be used to set the tension adjustment of the transmission belt, so as to ensure the consistency of the tension adjustment; thus, the operation of manual adjustment of the tension degree is convenient.

Further, the elastic member 601 is configured as a compression spring, so that when the tension is adjusted, the tension force of the transmission mechanism 1000 is equal to the spring force of the compression spring, so that the adjustment of the tension force is facilitated. Thus, when the limiting member 602 reaches the tensioning position, the tensioning force reaches the design value.

As shown in fig. 6, an elevator door machine according to an embodiment of the present utility model includes a door machine base 2000 and the above-mentioned transmission mechanism 1000, where the transmission mechanism 1000 is installed on the door machine base 2000.

The transmission mechanism 1000 further includes a driven wheel base 410, where the driven wheel base 410 is mounted on the door motor base 2000 and is rotatably connected to the driven wheel 400, that is, the driven wheel 400 is mounted on the door motor base 2000 through the driven wheel base 410.

As shown in fig. 7, in an embodiment, a limiting leg 411 is formed on the driven wheel base 410, and the limiting leg 411 can be in plug-in fit with the door machine base 2000 so as to guide the driven wheel base 410 to be mounted on the door machine base 2000; in this manner, determination of the mounting position of the driven wheel mount 410 on the door motor mount 2000 may be accomplished to facilitate mounting of the driven wheel mount 410 to the door motor mount 2000.

It should be noted that, the driven wheel base 410 and the door machine base 2000 may be locked by using the screw 412, so as to fix the driven wheel base 410 to the door machine base 2000; in addition, the driven wheel base 410 is further formed with a supporting leg 413 on the side where the limiting leg 411 is located, the supporting leg 413 has a certain stress area, and the position of the supporting leg 413 is consistent with the stress direction of the driven wheel 400, so as to improve the assembly stability of the driven wheel base 410 on the door machine base 2000.

The elevator door machine may be a door system for controlling opening and closing of a car door, or may be a door system for controlling opening and closing of a landing door, and is not limited thereto.

The technical features of the above embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.

Claims

1. A connecting assembly for connecting a rope (200) with a toothed belt (300) so that the toothed belt (300) can drive the rope (200) to move synchronously; the connecting assembly (100) is characterized by comprising a first connecting plate (10) and a second connecting plate (20), wherein the first connecting plate (10) is attached to the second connecting plate (20) and is connected with the second connecting plate (20), so that the first connecting plate (10) and the second connecting plate (20) are mutually matched and are commonly used for clamping the toothed belt (300);

the second connecting plate (20) extends towards the direction away from the toothed belt (300) relative to the first connecting plate (10) and is provided with an extending convex part (21), the extending convex part (21) is provided with a rope connecting part, and the rope connecting part is arranged at intervals with the first connecting plate (10) and is used for being matched with a rope (200) so as to limit the rope (200) to the second connecting plate (20).

2. The connection assembly according to claim 1, characterized in that the first connection plate (10) or the second connection plate (20) is formed with a toothed surface (11) for a concave-convex cooperation with the toothed surface (301) of the toothed belt (300) to limit the toothed belt (300) between the first connection plate (10) and the second connection plate (20).

3. The connecting assembly according to claim 1, wherein the rope connecting portion comprises a side block (211) opposite to the first connecting plate (10), and a through hole (2111) is formed in the side block (211) for the rope (200) to pass through.

4. The connection assembly according to claim 1, wherein the connection assembly (100) further comprises a first locking member (30), the first locking member (30) being detachably mounted on the first connection plate (10) and the second connection plate (20) to detachably connect the first connection plate (10) with the second connection plate (20).

5. A transmission mechanism, characterized by comprising a driving wheel (500), a driven wheel (400), a toothed belt (300), a rope (200) and the connecting assembly (100) according to any one of claims 1-4, wherein one end of the toothed belt (300) bypasses the driving wheel (500) and is connected with one end of the rope (200) through the connecting assembly (100), and the other end of the rope (200) bypasses the driven wheel (400) and is connected with the other end of the toothed belt (300) through the connecting assembly (100), so that the toothed belt (300) can drive the rope (200) to move at the same time.

6. The transmission mechanism according to claim 5, characterized in that the transmission mechanism (1000) further comprises a tension adjustment assembly (600), the tension adjustment assembly (600) being capable of acting on the rope (200) and the connection assembly (100) to adjust the tension of the rope (200) and the toothed belt (300) between the driven wheel (400) and the driving wheel (500).

7. The transmission according to claim 6, characterized in that the rope connection comprises a side stop (211) arranged opposite the first connection plate (10), the rope (200) being arranged through the side stop (211);

the tensioning adjusting assembly (600) comprises an elastic piece (601), a limiting piece (602) and a second locking piece (603), wherein the elastic piece (601) and the limiting piece (602) are arranged at one end of the rope (200) and are both installed on a part of the rope (200) penetrating through the side block (211), so that two ends of the elastic piece (601) are abutted against the side block (211) and the limiting piece (602); a connecting rod (202) is connected to at least one end of the rope (200), and the second locking piece (603) is connected to a portion of the connecting rod (202) penetrating through the side block (211) and can be displaced relative to the connecting rod (202) and locked in position so as to adjust the length of the portion of the connecting rod (202) penetrating through the side block (211).

8. The transmission mechanism according to claim 7, wherein the extending protrusion (21) is marked with a mark (212), and the limiting member (602) can be aligned with the mark (212) and used as a judgment standard for adjusting the tightness.

9. The transmission mechanism according to claim 7, wherein the extension protrusion (21) further has a flange (213), and the stopper (602) is capable of abutting against the flange (213) and is used as a criterion for adjusting the tension.

10. Elevator door machine characterized by comprising a door machine base (2000) and a transmission mechanism (1000) according to any of claims 5-9, said transmission mechanism (1000) being mounted on said door machine base (2000).

11. The elevator door machine of claim 10, wherein the transmission mechanism (1000) further comprises a driven wheel base (410), the driven wheel base (410) being mounted on the door machine base (2000) and in rotational connection with the driven wheel (400);

the driven wheel base (410) is provided with a limiting foot (411), and the limiting foot (411) can be in plug-in fit with the door machine base (2000) so as to guide the driven wheel base (410) to be mounted on the door machine base (2000).