CN214697420U

CN214697420U - Electric window opener

Info

Publication number: CN214697420U
Application number: CN202120297471.9U
Authority: CN
Inventors: 朱文彪
Original assignee: Ningbo Yinzhou Shuozhi Electromechanical Co ltd
Current assignee: Ningbo Yinzhou Shuozhi Electromechanical Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-12
Anticipated expiration: 2031-02-02

Abstract

The application relates to the technical field of building hardware, in particular to an electric window opener. The chain wheel transmission assembly comprises a fixed shaft detachably connected in the module bracket, a chain wheel rotatably connected on the fixed shaft and a transmission chain connected with the chain wheel; the two ends of the fixed shaft are provided with positioning columns, the opposite side walls of the module support penetrate through the fixed shaft to form positioning holes, the aperture of each positioning hole is smaller than the outer diameter of the corresponding fixed shaft, and the positioning columns are clamped in the positioning holes. This application has the effect that improves the assembly efficiency of electronic ware of windowing.

Description

Electric window opener

Technical Field

The application relates to the technical field of building hardware, in particular to an electric window opener.

Background

In large stores, louvers are often provided to improve the air flow through the interior walls of the store, but for safety reasons, these louvers are typically located higher up in the store. In order to control the opening or closing of the window conveniently, people often install a window opener on the window, and then remotely control the window.

The prior chinese patent publication No. CNA108561032A discloses an electric window opener, which mainly comprises a transmission case, a sprocket transmission assembly disposed in the transmission case, and a gear transmission assembly driving the sprocket assembly to operate, wherein the sprocket transmission assembly comprises a transmission shaft rotatably connected to the transmission case through a bearing, a sprocket sleeved on the transmission shaft, and a transmission chain connected to the sprocket; the gear transmission assembly comprises a transmission gear connected to the transmission shaft in a sleeved mode and a driving gear meshed with the transmission gear, and the driving gear drives the transmission gear and the chain wheel to rotate synchronously.

In view of the above-mentioned related art, the inventor believes that the electric window opener has a defect of low assembly efficiency due to a large number of structural components.

SUMMERY OF THE UTILITY MODEL

In order to improve the assembly efficiency of electronic ware of windowing, this application provides an electronic ware of windowing.

The application provides an electronic ware of windowing adopts following technical scheme:

an electric window opener comprises a module bracket and a chain wheel transmission assembly arranged in the module bracket, wherein the chain wheel transmission assembly comprises a fixed shaft detachably connected in the module bracket, a chain wheel rotatably connected on the fixed shaft and a transmission chain connected with the chain wheel; the two ends of the fixed shaft are provided with positioning columns, the opposite side walls of the module support penetrate through the fixed shaft to form positioning holes, the aperture of each positioning hole is smaller than the outer diameter of the corresponding fixed shaft, and the positioning columns are clamped in the positioning holes.

Through adopting above-mentioned technical scheme, the fixed axle passes through the reference column joint in the locating hole for fixed axle and module support have realized relatively fixed, and realize the removal of driving chain through the relative rotation between sprocket and the fixed axle, have changed current fixed axle and the synchronous pivoted form of sprocket, have reduced the bearing setting between fixed axle and the module support, have simplified transmission structure, have promoted assembly efficiency simultaneously.

In addition, because the aperture of locating hole is less than the external diameter of fixed axle, and the reference column joint is in the locating hole for the removal of module support restriction fixed axle, and then improve the rotational stability of sprocket.

Optionally, the sprocket includes that the cover locates the connecting portion on the fixed axle and the gear portion of being connected with the driving chain, be provided with the rotatory drive gear of drive connecting portion on the connecting portion, drive gear passes through connecting portion drive gear portion and rotates.

Through adopting above-mentioned technical scheme, because connecting portion are direct cover and are located fixed epaxial for when needs drive transmission chain removed, drive gear passes through connecting portion drive gear portion and rotates, makes the control to the transmission chain more simple and convenient. In addition, when the chain wheel is damaged due to long-time use, the connecting part can be directly separated from the fixing part, so that the chain wheel is simpler and more convenient to replace.

Optionally, the one end that gear portion was kept away from to connecting portion is provided with location hexagonal post, drive gear's lateral wall runs through to have seted up and has fixed a position hexagonal groove, location hexagonal post joint is in location hexagonal inslot.

Through adopting above-mentioned technical scheme, location hexagonal post joint is in location hexagonal inslot for location hexagonal post restriction drive gear's removal, and then makes drive gear can drive connecting portion rotatory. In addition, when the driving gear is damaged due to long-time use, the driving gear can be directly separated from the positioning hexagonal column, so that the driving gear is simpler and more convenient to replace.

Optionally, the sprocket still includes the fixed part that sets up on the fixed axle and a plurality of rolling post that set up between fixed part and connecting portion, the rotation hole has been seted up on the fixed part, the fixed axle wears to establish the rotation hole and with fixed part fixed connection, just the fixed part passes through the rolling post with connecting portion and rotates and be connected.

Through adopting above-mentioned technical scheme, because be provided with the rolling post between fixed part and the connecting portion, and fixed part and fixed axle fixed connection for when drive sprocket takes place to rotate, become the rolling friction between rolling post and the connecting portion with the sliding friction between connecting portion and the fixed axle, and then reduce the produced resistance of drive sprocket, improve the rotatory smoothness nature of sprocket.

Optionally, the hole wall of the rotating hole is provided with an external spline, the outer circumferential surface of the fixed shaft is provided with an internal spline, and the external spline is inserted into the internal spline and is fixedly connected with the fixed shaft.

Through adopting above-mentioned technical scheme, when needs installation sprocket, locate the fixed axle with the fixed part cover on to peg graft the external splines in the internal splines and with fixed axle fixed connection, make the removal of internal splines restriction external splines, and then the removal of restriction fixed cover, improve the stability of being connected of fixed cover and fixed axle. In addition, when the sprocket needs to be replaced, the fixing sleeve can be directly separated from the fixing shaft, so that the sprocket can be replaced more simply and conveniently.

Optionally, an accommodating cavity is formed between the fixing portion and the connecting portion, and the rolling column is embedded in the accommodating cavity.

Through adopting above-mentioned technical scheme, the rolling post inlays and locates the holding intracavity, and the holding chamber carries on spacingly to the rolling post, and then reduces the possibility that the rolling post breaks away from the holding chamber, improves the rotatory stability of sprocket indirectly.

Optionally, the sprocket still including setting up in the holder that is used for fixed rolling post, set up a plurality of caulking grooves that supply the rolling post to inlay to establish on the holder, just the holder inlays and locates the holding intracavity.

By adopting the technical scheme, the retainer is embedded in the accommodating cavity, the rolling column is embedded in the embedding groove, the groove wall of the embedding groove limits the movement of the rolling column, the possibility that the rolling column is separated from the accommodating cavity is further reduced, and the rotation stability of the chain wheel is further improved.

Optionally, the sprocket drive assembly further comprises a guide block arranged in the module support, a guide track for accommodating the sprocket is arranged on the guide block, and the transmission chain slides in the guide track in a reciprocating manner.

Through adopting above-mentioned technical scheme, because the driving chain is reciprocating in the guide track and slides for the guide track restriction driving chain's removal, and then reduce the possibility that the dislocation skew takes place for the driving chain, and then improve sprocket drive driving chain's stability.

Optionally, a positioning strip is arranged on a groove wall of the guide track, and a positioning space for positioning the transmission chain is formed between the positioning strip and the chain wheel.

Through adopting above-mentioned technical scheme, be formed with the location space that is used for fixing a position the driving chain between location strip and the sprocket for the removal of location space restriction driving chain further reduces the possibility that the driving chain takes place the skew, and then improves the stability of sprocket drive driving chain.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the sprocket drive assembly is assembled, the positioning column can be directly penetrated into the positioning hole, so that the sprocket drive assembly is more simple and convenient to install.

2. Because the aperture of locating hole is less than the external diameter of fixed axle for the removal of module support restriction fixed axle, and then improve the rotational stability of sprocket.

Drawings

Fig. 1 is a schematic structural diagram of an electric window opener according to an embodiment of the present application.

Fig. 2 is an exploded view of the electric window opener according to the embodiment of the present application.

Fig. 3 is a partially exploded schematic view of the transmission.

Fig. 4 is a schematic view of the transmission mechanism in another direction.

Fig. 5 is an exploded view of the worm gear assembly and module mount.

Fig. 6 is an exploded view of the gear assembly and module holder.

Fig. 7 is an exploded view of the sprocket assembly and module holder.

Fig. 8 is an exploded schematic view of the sprocket.

FIG. 9 is a cross-sectional view of the sprocket.

Description of reference numerals: 1. a window opener housing; 2. a drive device; 3. a right-angle plate; 21. a drive chain; 22. a chain case; 23. a transmission mechanism; 24. a module holder; 25. a guide rail; 231. a drive motor; 232. a worm gear assembly; 233. a gear drive assembly; 234. a sprocket drive assembly; 241. a separation seat; 242. a cover plate; 243. a placement groove; 244. a through hole; 245. a support frame; 2321. a worm; 2322. a worm gear; 2323. a fixing hole; 2324. a first connecting shaft; 2325. a first connection hole; 2326. a first limit post; 2327. a first limit hole; 2331. a first gear transmission pair; 2332. a second gear transmission pair; 2333. a third gear transmission pair; 2341. a fixed shaft; 2342. a sprocket; 2343. a guide block; 2344. rotating the hole; 2345. a positioning column; 2346. positioning holes; 2347. a guide rail; 2348. a positioning bar; 2349. connecting grooves; 23410. positioning a space; 23311. a first drive gear; 23312. a first reduction gear; 23313. a second connecting shaft; 23321. a second transmission gear; 23322. a second reduction gear; 23323. a third connecting shaft; 23324. a second connection hole; 23325. a ring groove; 23326. a second limit post; 23327. a second limiting hole; 23331. a third transmission gear; 23332. a drive gear; 23333. positioning the hexagonal groove; 23421. a gear portion; 23422. a connecting portion; 23423. a fixed part; 23424. a rolling post; 23425. a holder; 23426. an external spline; 23427. an internal spline; 23428. an accommodating cavity; 23429. caulking grooves; 234210, positioning hexagonal column; 234261, a holding base; 234262, a retaining cover ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses an electric window opener. Referring to fig. 1 and 2, the electric window opener comprises a window opener housing 1, a driving device 2 arranged in the window opener housing 1 and a right-angle plate 3 arranged on the window opener housing, wherein the window opener housing 1 is fixed on a window frame through the right-angle plate 3. Specifically, the driving device 2 includes a transmission chain 21, a chain box 22 for accommodating the transmission chain 21, a transmission mechanism 23 for driving the transmission chain 21 to move, and a module bracket 24 for placing the transmission mechanism 23.

In this embodiment, the inner wall of the chain box 22 is integrally formed with a guide rail 25, and the transmission chain 21 is embedded in the guide rail 25, so that the guide rail 25 provides the transmission chain 21 with a limiting and guiding function, thereby reducing the possibility of the transmission chain 21 deviating and improving the control stability of the transmission chain 21. In addition, the module bracket 24 is connected with the chain box 22 through bolts, so that the electric window opener can be more conveniently maintained when the electric window opener is required to be damaged.

When the opening and closing of the window need to be controlled, the transmission chain 21 is connected with the window through a support, and then the transmission mechanism 23 is used for controlling the movement of the transmission chain 21, so that the opening and closing of the window are changed.

Referring to fig. 2 and 3, the transmission mechanism 23 includes a driving motor 231 disposed on the module bracket 24, a worm gear assembly 232 connected to the driving motor 231, a gear assembly 233 connected to the worm gear assembly 232, and a sprocket assembly 234 connected to the gear assembly 233, and the sprocket assembly 234 is connected to the transmission chain 21.

The module bracket 24 includes a separating base 241, a cover plate 242 fixed to the separating base 241 by bolts, and a support frame 245 fixed between the separating base 241 and the cover plate 242 by welding, and a placement groove 243 is formed between the separating base 241 and the cover plate 242. The worm and gear assembly 232, the gear assembly 233 and the sprocket assembly 234 are accommodated in the accommodating groove 243.

Referring to fig. 4 and 5, the worm and gear assembly 232 includes a worm 2321 and a worm wheel 2322 disposed in the placement groove 243, and the worm wheel 2322 and the worm 2321 are engaged with each other. Specifically, one end of the module bracket 24 is penetrated and provided with a through hole 244 communicated with the placing groove 243, the driving motor 231 is fixed on the outer wall of the module bracket 24 through a bolt, and an output shaft of the driving motor 231 penetrates through the through hole 244 and is rotatably connected with the support frame 245 through a bearing.

The end of the worm 2321 penetrates through a fixing hole 2323, and the output shaft of the driving motor 231 is clamped in the fixing hole 2323, so that the driving motor 231 is forced to directly control the worm 2321. The worm wheel 2322 is provided with a first connection shaft 2324 in a penetrating manner, specifically, a first connection hole 2325 is formed in a penetrating manner on a side wall of the worm wheel 2322, the first connection shaft 2324 penetrates through the first connection hole 2325 and is rotatably connected with the worm wheel 2322, so that the worm 2321 is forced to drive the worm wheel 2322 to rotate.

The two ends of the first connecting shaft 2324 are integrally formed with first limiting columns 2326, two opposite groove walls of the placing groove 243 are penetrated by first limiting holes 2327, the aperture of each first limiting hole 2327 is smaller than the outer diameter of the first connecting shaft 2324, and the first limiting columns 2326 are clamped in the first limiting holes 2327.

Referring to fig. 4 and 6, the gear assembly 233 includes a first gear pair 2331 connected to the worm gear assembly 232, a second gear pair 2332 connected to the first gear pair 2331, and a third gear pair 2333 connected to the second gear pair 2332, and the third gear pair 2333 is connected to the sprocket assembly 234.

When it is desired to control the operation of the sprocket assembly 234, the first gear pair 2331 is first driven to operate by the worm and gear assembly 232. The first gear wheel set 2331 drives the second gear wheel set 2332 to move, then the second gear wheel set 2332 drives the third gear wheel set 2333 to move, and finally the third gear wheel set 2333 drives the sprocket 2342 to rotate.

Referring to fig. 4 and 6, the first gear train 2331 includes a first transmission gear 23311 integrally formed at a sidewall of the worm wheel 2322, a first reduction gear 23312 engaged with the first transmission gear 23311, and a second connection shaft 23313 penetrating through a sidewall of the first reduction gear 23312.

In this embodiment, the modulus of the first transmission gear 23311 is smaller than that of the worm wheel 2322, the modulus of the first reduction gear 23312 is larger than that of the first transmission gear 23311, the first reduction gear 23312 is clamped at the end of the second connecting shaft 23313, and two ends of the second connecting shaft 23313 are rotatably connected with two opposite groove walls of the placing groove 243 through bearings.

The second gear train set 2332 includes a second transmission gear 23321 provided on the second connecting shaft 23313, a second reduction gear 23322 engaged with the second transmission gear 23321, and a third connecting shaft 23323 provided through a sidewall of the second reduction gear 23322.

In this embodiment, the second transmission gear 23321 is integrally formed at one end of the second connecting shaft 23313 away from the first reduction gear 23312, and the module of the second transmission gear 23321 is smaller than that of the first reduction gear 23312. A second connecting hole 23324 is formed through a side wall of the second reduction gear 23322, an annular groove 23325 is formed at one end of the third connecting shaft 23323, the second reduction gear 23322 is sleeved in the annular groove 23325, and a module of the second reduction gear 23322 is greater than a module of the second transmission gear 23321.

In addition, the two ends of the third connecting shaft 23323 are welded and fixed with second limiting columns 23326, two opposite groove walls of the placing groove 243 are penetrated and provided with second limiting holes 23327, the diameter of each second limiting hole 23327 is smaller than the outer diameter of the third connecting shaft 23323, and the second limiting columns 23326 are clamped in the second limiting holes 23327.

The third gear train set 2333 includes a third transmission gear 23331 disposed on the second reduction gear 23322 and a drive gear 23332 intermeshed with the third transmission gear 23331, and the drive gear 23332 is connected to the sprocket drive assembly 234.

In this embodiment, the third transmission gear 23331 is welded to the side wall of the second reduction gear 23322, and the side of the third transmission gear 23331 away from the second reduction gear 23322 abuts against the wall of the placement groove 243. In addition, the module of the third transmission gear 23331 is smaller than that of the second reduction gear 23322, and the module of the second drive gear 23332 is larger than that of the third transmission gear 23331.

When the worm gear assembly 232 drives the sprocket assembly 234 to operate through the gear assembly 233, the torque of the worm gear assembly 232 is increased through the three-stage speed reduction effect of the first 2331, the second 2332 and the third 2333 gear pairs, so that the control of the sprocket assembly 234 is simpler and more convenient.

Referring to fig. 4 and 7, the sprocket gear assembly 234 includes a fixing shaft 2341 coupled to the driving gear 23332, a sprocket 2342 provided on the fixing shaft 2341, and a guide block 2343 provided in the placement groove 243. The driving gear 23332 is disposed on the sprocket 2342, the sprocket 2342 is provided with a rotation hole 2344 through the rotation hole 2344, and the fixing shaft 2341 is disposed through the rotation hole 2344 and rotatably connected to the sprocket 2342.

In this embodiment, two ends of the fixing shaft 2341 are welded and fixed with positioning posts 2345, two opposite groove walls of the placing groove 243 penetrate through and are provided with positioning holes 2346, the hole diameter of each positioning hole 2346 is smaller than the outer diameter of the fixing shaft 2341, and the positioning posts 2345 are clamped in the positioning holes 2346. So that the groove wall of the placement groove 243 restricts the movement of the fixing axis 2341, thereby reducing the possibility of the fixing axis 2341 falling.

The side wall of the guide block 2343 is penetrated by a guide rail 2347 for the transmission chain 21 to slide back and forth, and the sprocket 2342 is accommodated in the guide rail 2347. In addition, a positioning bar 2348 is integrally formed on a groove wall of the guide rail 2347, and a positioning space 23410 for positioning the transmission chain 21 is formed between the positioning bar 2348 and the sprocket 2342, so that the guide rail 2347 and the positioning space 23410 limit the movement of the transmission chain 21, the possibility of the transmission chain 21 shifting is further reduced, and the stability of the transmission chain 21 driven by the sprocket 2342 is further improved.

Referring to fig. 7 and 8, the sprocket 2342 includes a gear portion 23421 coupled to the driving chain 21, a coupling portion 23422 sleeved on the fixing shaft 2341, a fixing portion 23423 provided on the fixing shaft 2341, a plurality of rolling columns 23424 provided between the fixing portion 23423 and the coupling portion 23422, and a holder 23425 for fixing the rolling columns 23424.

Specifically, a groove wall of the guide rail 2347 is provided with a connecting groove 2349, and the gear portion 23421 is integrally formed at one end of the connecting portion 23422 and is received in the guide rail 2347. One end of the connecting portion 23422, which is far away from the gear portion 23421, penetrates through the connecting groove 2349 and is fixedly connected with the driving gear 23332, and the outer diameter of the driving gear 23332 is larger than that of the connecting groove 2349.

In this embodiment, a positioning hexagonal column 234210 is die-cast at an end of the connecting portion 23422 away from the gear portion 23421, a positioning hexagonal groove 23333 is formed through a side wall of the driving gear 23332, and the positioning hexagonal column 234210 is clamped in the positioning hexagonal groove 23333. Such that the positioning hex slot 23333 restricts movement of the positioning hex post 234210, causing the drive gear 23332 to drive the gear portion 23421 for rotation through the connecting portion 23422.

Referring to fig. 4, at this time, the side of the second reduction gear 23322 away from the third transmission gear 23331 abuts against the side of the guide block 2343 close to the third transmission gear 23331; and the side of the driving gear 23332 close to the gear portion 23421 abuts against the side of the second reduction gear 23322 close to the third transmission gear 23331, so that the guide block 2343 simultaneously limits the movement of the second reduction gear 23322 and the driving gear 23332, thereby improving the stability of the sprocket 2342 in the operation of the gear assembly 233.

Referring to fig. 8 and 9, the rotation hole 2344 is opened in a side wall of the fixing portion 23423, and the fixing shaft 2341 is inserted through the rotation hole 2344 and fixedly connected to the fixing portion 23423. Specifically, the hole wall of the rotating hole 2344 is provided with an external spline 23426, the outer peripheral surface of the fixed shaft 2341 is provided with an internal spline 23427, and the external spline 23426 is inserted into the internal spline 23427 and fixedly connected with the fixed shaft 2341.

The fixing portion 23423 is rotatably connected to the connecting portion 23422 via a rolling post 23424. Specifically, an accommodating cavity 23428 is formed between the outer peripheral surface of the fixing portion 23423 and the inner peripheral surface of the connecting portion 23422, and the holding frame 23425 and the rolling column 23424 are embedded in the accommodating cavity 23428.

In this embodiment, the cage 23425 includes the retaining base 234261 and the retaining cover ring 234262 fixedly connected to the retaining base 234261 by bolts. A plurality of slots 23429 are formed between the retaining base 234261 and the retaining cover ring 234262, and the rolling posts 23424 are embedded in the slots 23429, so that the slot walls of the slots 23429 limit the movement of the rolling posts 23424, thereby reducing the possibility of the fixed posts being detached. Taking eighteen as an example, eighteen caulking grooves 23429 are formed, and eighteen caulking grooves 23429 are arranged in central symmetry with the axis of the holding frame 23425 as the center. Eighteen rolling posts 23424 are also provided, and eighteen rolling posts 23424 are in one-to-one correspondence with eighteen caulking grooves 23429.

Due to the existence of the rolling post 23424, when the driving sprocket 2342 rotates, rolling friction is generated between the rolling post 23424 and the connecting portion 23422, so that resistance generated by the driving sprocket 2342 is reduced, and the smoothness of the rotation of the sprocket 2342 is improved.

The implementation principle of the electric window opener in the embodiment of the application is as follows:

when the electric window opener needs to be used, the driving motor 231 is started first, the output shaft of the driving motor 231 drives the worm 2321 to rotate, and the worm 2321 drives the worm wheel 2322 to rotate.

Then the worm gear 2322 drives the first transmission gear 23311 to rotate, the first transmission gear 23311 drives the first reduction gear 23312 to rotate, the first reduction gear 23312 drives the second connection shaft 23313 to rotate, and further drives the second transmission gear 23321 to rotate. The second transmission gear 23321 rotates the second reduction gear 23322, and the second reduction gear 23322 rotates the third transmission gear 23331.

Then, the third transmission gear 23331 forces the driving gear 23332 to rotate, the driving gear 23332 drives the connecting part 23422 to rotate, and the connecting part 23422 drives the gear part 23421 to rotate, so as to drive the transmission chain 21 to move, and further control the opening and closing of the window.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an electronic ware of windowing, includes module support (24) and sets up sprocket feed subassembly (234) in module support (24), its characterized in that: the chain wheel transmission assembly (234) comprises a fixed shaft (2341) detachably connected in the module bracket (24), a chain wheel (2342) rotatably connected on the fixed shaft (2341) and a transmission chain (21) connected with the chain wheel (2342); the two ends of the fixed shaft (2341) are provided with positioning columns (2345), the opposite side walls of the module support (24) penetrate through the positioning holes (2346), the hole diameter of each positioning hole (2346) is smaller than the outer diameter of the corresponding fixed shaft (2341), and the positioning columns (2345) are clamped in the positioning holes (2346).

2. The electric window opener of claim 1, wherein: the chain wheel (2342) comprises a connecting portion (23422) sleeved on the fixed shaft (2341) and a gear portion (23421) connected with the transmission chain (21), a driving gear (23332) is fixedly connected to one end, far away from the gear portion (23421), of the connecting portion (23422), and the driving gear (23332) rotates through the connecting portion (23422) and the gear portion (23332).

3. The electric window opener of claim 2, wherein: one end, far away from the gear part (23421), of the connecting part (23422) is provided with a positioning hexagonal column (234210), the side wall of the driving gear (23332) is provided with a positioning hexagonal groove (23333) in a penetrating mode, and the positioning hexagonal column (234210) is clamped in the positioning hexagonal groove (23333).

4. The electric window opener of claim 2, wherein: sprocket (2342) is still including setting up fixed part (23423) on fixed axle (2341) and a plurality of rolling post (23424) that set up between fixed part (23423) and connecting portion (23422), rotating hole (2344) have been seted up on fixed part (23423), fixed axle (2341) wear to establish rotating hole (2344) and with fixed part (23423) fixed connection, just fixed part (23423) are connected through rolling post (23424) rotation with connecting portion (23422).

5. The electric window opener of claim 4, wherein: the hole wall of the rotating hole (2344) is provided with an external spline (23426), the outer peripheral surface of the fixing shaft (2341) is provided with an internal spline (23427), and the external spline (23426) is inserted into the internal spline (23427) and fixedly connected with the fixing shaft (2341).

6. The electric window opener of claim 4, wherein: an accommodating cavity (23428) is formed between the fixing portion (23423) and the connecting portion (23422), and the rolling column (23424) is embedded in the accommodating cavity (23428).

7. The electric window opener of claim 6, wherein: sprocket (2342) are still including setting up in holder (23425) that is used for fixed rolling post (23424), set up a plurality of caulking grooves (23429) that supply rolling post (23424) to inlay on holder (23425), just holder (23425) are inlayed and are located in holding chamber (23428).

8. The electric window opener of claim 1, wherein: sprocket drive assembly (234) still including setting up guide block (2343) in module support (24), set up guide rail (2347) that supply sprocket (2342) to hold on guide block (2343), driving chain (21) slides in guide rail (2347) reciprocating.

9. The electric window opener of claim 8, wherein: positioning strips (2348) are arranged on the groove walls of the guide rail (2347), and positioning spaces (23410) used for positioning the transmission chain (21) are formed between the positioning strips (2348) and the chain wheel (2342).