CN211974708U - Power-off automatic opening electric smoke exhaust window - Google Patents
Power-off automatic opening electric smoke exhaust window Download PDFInfo
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- CN211974708U CN211974708U CN202020528284.2U CN202020528284U CN211974708U CN 211974708 U CN211974708 U CN 211974708U CN 202020528284 U CN202020528284 U CN 202020528284U CN 211974708 U CN211974708 U CN 211974708U
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Abstract
The utility model discloses an electric smoke exhaust window capable of being automatically opened in power failure, which comprises a window frame, a window sash, a chain window opener, a window opening driving device and a pneumatic spring, wherein the extending end of the chain is fixed on the window sash, the window opening driving device is connected with a chain wheel mechanism, and one end of the pneumatic spring is hinged on the window frame and the window sash; the windowing driving device comprises an electric windowing mechanism, a pneumatic windowing mechanism and a clutch; a self-locking worm mechanism of the electric windowing mechanism transmits the torque of the motor to a first gear; an electromagnetic lock of the pneumatic windowing mechanism is fixed on the fixed rod and the fixed seat; the gear shaft can be meshed with or separated from the first gear under the action of a spring; the electric window opening mechanism and the pneumatic window opening mechanism are arranged, and the motor drives the first gear to transmit power under the condition of electricity, so that the window opening or the window closing is realized; when the power is off, the electromagnet of the electromagnetic lock no longer has an adsorption effect on the magnetic block, and the window sash can be automatically opened under the power-off condition under the action of the pneumatic spring.
Description
Technical Field
The utility model relates to a ware technical field that windows, concretely relates to automatic electronic smoke exhaust window who opens of outage.
Background
With the development of economy and society and the progress of building technology, the number of high-rise buildings around us is more and more, and the altitude is higher and higher, so that the fire-fighting problem is endless. Besides taking various measures to prevent the fire from happening, how to open a window to discharge smoke at the first time of the fire, and it is also important to create a good environment for people to escape. At present, the window sash is mainly opened in a manual window opening mode and an electric window opening mode, wherein the manual window opening mode is to manually open the window, but the manual window opening mode is difficult and unsafe in a fire disaster, and the electric window opening mode cannot be used under the condition of power failure.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing an automatic electronic smoke exhausting window who opens of outage.
The utility model adopts the technical proposal that:
the electric smoke exhaust window capable of being automatically opened in power failure comprises a window frame, a window sash, a chain window opener and a window opening driving device, wherein one side of the window sash is hinged to the window frame; the windowing driving device comprises an electric windowing mechanism, a pneumatic windowing mechanism and a clutch; the electric windowing mechanism comprises a motor, a self-locking worm mechanism and a first gear, and the self-locking worm mechanism transmits the torque of the motor to the first gear; the pneumatic windowing mechanism comprises a fixed seat, an electromagnetic lock, a fixed rod and a spring, wherein the electromagnetic lock comprises an electromagnet and a magnetic block, the magnetic block is fixed on the fixed rod, and the electromagnet is fixed on the fixed seat and is far away from one end of the fixed rod; the magnetic block is adsorbed on the electromagnet when the electromagnet is electrified, and the spring is sleeved on the fixed rod and compressed between the fixed rod and the fixed seat; the clutch comprises a gear shaft and a second gear meshed with the gear shaft, and the second gear transmits the torque of the gear shaft to the sprocket mechanism; the gear shaft is arranged on the fixed rod through a bearing and can be meshed with or separated from the first gear under the action of a spring.
The manual windowing mechanism comprises a hand crank and a second bevel gear, and the second bevel gear is mounted on the hand crank and driven to rotate by the hand crank; the first bevel gear is mounted on the fixed rod through a bearing and is coaxially mounted with the gear shaft, and the first bevel gear can be separated from or meshed with the second bevel gear under the action of the spring.
Further, the self-locking worm mechanism comprises a worm and a helical gear meshed with the worm.
Further, the electric window opening mechanism further comprises a third bevel gear, a fourth bevel gear and a transmission shaft, the third bevel gear and the helical gear are coaxially installed, the fourth bevel gear is installed at one end of the transmission shaft and meshed with the third bevel gear, and the first gear is installed at the other end of the transmission shaft.
Further, the magnetic block is made of a magnetic material.
Furthermore, the fixing base is of a U-shaped structure, a through hole is formed in the other end of the fixing base, and one end of the fixing rod penetrates through the through hole and then is fixed with the magnetic block.
Furthermore, a limiting block is arranged on the fixed rod, and the spring is compressed between the limiting block and the other end of the fixed seat.
Further, the sprocket mechanism includes first transfer line, sprocket, fifth bevel gear and sixth bevel gear, fifth bevel gear installs on first transfer line and meshes with sixth bevel gear, sixth bevel gear and sprocket coaxial arrangement, the sprocket meshes with the chain, first transfer line is connected with the second gear.
And the other end of the second transmission rod is connected with the first transmission rod.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the electric window opening mechanism and the pneumatic window opening mechanism are arranged, the pneumatic window opening mechanism and the electric window opening mechanism adopt the same power supply, under the condition of electrification, an electromagnet is electrified and has magnetism, a magnetic block is adsorbed, a fixed rod is moved leftwards (by taking the direction in the attached drawing as reference), a spring is compressed, and meanwhile, a gear shaft is meshed with a first gear; the first gear is driven to transmit power through the forward and reverse rotation of the motor, and the chain wheel mechanism is driven to act, so that the window opening or closing is realized; when the power is off, the electromagnet is powered off and loses magnetism, the electromagnet is no longer adsorbed to the magnetic block, the electromagnet is separated from the magnetic block, the fixed rod moves rightwards under the action of the spring, the clutch is separated from the first gear, the self-locking state is separated, the window sash can be automatically opened under the action of the pneumatic spring, and automatic window opening under the power-off condition is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of an embodiment of the present application illustrating a structure of an electric smoke exhaust window that is automatically opened when power is off;
FIG. 2 is a schematic structural diagram of a state of the driving device and the chain window opener according to the embodiment of the present application;
FIG. 3 is a schematic view of another state structure of the driving device and the chain window opener according to the embodiment of the present application;
FIG. 4 is a schematic structural view of a chain window opener according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a driving device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a portion of an electric window opening mechanism according to an embodiment of the present application.
The window frame comprises a window frame 1, a window sash 2, a chain window opener 3, a fifth bevel gear 31, a first transmission rod 32, a chain wheel 33, a chain 34, a pneumatic window opening mechanism 4, an electromagnetic lock 41, an electromagnet 411, an electromagnetic block 412, a fixed seat 42, a fixed rod 43, a limiting block 431, a spring 44, a manual window opening mechanism 5, a hand crank 51, a second bevel gear 52, a pneumatic spring 6, a hinge 7, an electric window opening mechanism 8, a motor 81, a worm 82, a helical gear 83, a fourth bevel gear 84, a transmission shaft 85, a first gear 86, a third bevel gear 87, a clutch 9, a toothed shaft 91, a second gear 92, a first bevel gear 93 and a second transmission rod 94.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1 to 6, the electric smoke exhaust window capable of being automatically opened in case of power failure comprises a window frame 1, a window sash 2, a chain window opener 3, a window opening driving device and a pneumatic spring 6, wherein one side of the window sash 2 is hinged to the window frame 1, and specifically, one side of the window sash 2 is hinged to the window frame 1 through a hinge 7; the chain window opener 3 comprises a chain 34 and a chain wheel mechanism for driving the chain 34, the extending end of the chain 34 is fixed on the window sash 2, and the window opening driving device is connected with the chain wheel mechanism; one end of the pneumatic spring 6 is hinged on the window frame 1, and the other end is hinged on the window sash 2; the windowing driving device comprises an electric windowing mechanism 8, a pneumatic windowing mechanism 4 and a clutch 9; the electric windowing mechanism 8 comprises a motor 81, a self-locking worm mechanism and a first gear 86, wherein the self-locking worm mechanism transmits the torque of the motor 81 to the first gear 86; the pneumatic windowing mechanism 4 comprises a fixed seat 42, an electromagnetic lock 41, a fixed rod 43 and a spring 44, wherein the electromagnetic lock 41 comprises an electromagnet 411 and a magnetic block 412, the magnetic block 412 is fixed on the fixed rod 43, and the electromagnet 411 is fixed on the fixed seat 42 and is far away from one end of the fixed rod 43; the magnetic block 412 is adsorbed on the electromagnet 411 when the electromagnet 411 is electrified, and the spring 44 is sleeved on the fixed rod 43 and compressed between the fixed rod 43 and the fixed seat 42; the clutch 9 comprises a gear shaft 91 and a second gear 92 meshed with the gear shaft 91, and the second gear 92 transmits the torque of the gear shaft 91 to the sprocket mechanism; the pinion 91 is bearing-mounted on the fixed lever 43 and can be engaged with or disengaged from the first gear 86 by the spring 44.
When the window opener is used, the chain window opener 3 is installed on the window frame 1, the chain 34 is driven to extend out or retract into the chain window opener 3 through the rotation of the chain wheel 33, and the window sash 2 is opened or closed.
According to the window opening device, the electric window opening mechanism 8 and the pneumatic window opening mechanism 4 are arranged, the pneumatic window opening mechanism 4 and the electric window opening mechanism 8 adopt the same power supply, under the condition that electricity exists, the electromagnet 411 is electrified to have magnetism, the magnetic block 412 is adsorbed, the fixing rod 43 is enabled to move leftwards (by taking the direction in the drawing as reference), the spring 44 is compressed, and meanwhile the gear shaft 91 is meshed with the first gear 86; the first gear 86 is driven by the positive and negative rotation of the motor 81 to transmit power, and the chain wheel mechanism is driven to act to open or close the window; when the power is off, the electromagnet 411 is powered off and loses magnetism, the electromagnet 411 does not have an adsorption effect on the magnetic block 412 any more, the electromagnet 411 is separated from the magnetic block 412, the fixed rod 43 moves rightwards under the action of the spring 44, the clutch 9 is separated from the first gear 86, the self-locking state is separated, and the window sash 2 can be automatically opened under the action of the pneumatic spring 6, so that the automatic window opening under the power-off condition is realized. When the power supply is resumed, the electromagnet 411 will attract the magnetic block 412 again, so that the fixing rod moves to the left, and the first gear 86 is engaged with the gear shaft 91 again, thereby resuming the function of the electric window opening mechanism 8.
The magnetic block 412 is made of a magnetic material, and can react to a magnetic field to form the electromagnetic lock 41 with the electromagnet 411. The magnetic block 412 may be fixed to the fixing rod 43 in a conventional manner, which is not limited in this application.
Preferably, the window opening device further comprises a manual window opening mechanism 5 and a first bevel gear 93, wherein the manual window opening mechanism 5 comprises a hand crank 51 and a second bevel gear 52, and the second bevel gear 52 is installed on the hand crank 51 and driven to rotate by the hand crank 51; the first bevel gear 93 is mounted on the fixed rod 43 through a bearing and is coaxially mounted with the pinion shaft 91, and the first bevel gear 93 is separated from or engaged with the second bevel gear 52 by the spring 44.
By arranging the manual window opening mechanism 5, the hand crank 51 of the manual window opening mechanism 5 can be manually rotated to drive the second bevel gear 52 to rotate, so that the first bevel gear 93 is driven to drive the gear shaft 91 to rotate, the torque is transmitted to the chain wheel mechanism through the second gear 92 meshed with the gear shaft 91, the chain wheel mechanism is driven to act, and the window opening or closing is realized. When the power is off, the fixing rod 43 moves rightwards to enable the first bevel gear 93 to be meshed with the second bevel gear 52, and when the smoke exhaust window needs to be closed, the smoke exhaust window can be closed by using the hand crank 51.
Preferably, the self-locking worm mechanism comprises a worm 82 and a bevel gear 83 meshed with the worm 82, and the worm 82 is connected with an output shaft of the motor 81. The worm 82 and the helical gear 83 form a self-locking structure.
Further, the electric window opening mechanism 8 further includes a third bevel gear 87, a fourth bevel gear 84 and a transmission shaft 85, the third bevel gear 87 and the helical gear 84 are coaxially installed, the fourth bevel gear 84 is installed at one end of the transmission shaft 85 and meshed with the third bevel gear 87, and the first gear 86 is installed at the other end of the transmission shaft 85.
An output shaft of a motor 81 is connected with one end of a worm 82, the worm 82 is meshed with a helical gear 84, the helical gear 84 is coaxially arranged with a third bevel gear 87, a fourth bevel gear 84 is meshed with the third bevel gear 87, a second gear 92 is coaxially arranged with the fourth bevel gear 84, the power of the motor 81 is transmitted to a gear shaft 91 through the worm 82, the helical gear 84, the third bevel gear 87, the fourth bevel gear 84 and a first gear 86 in sequence, and then is transmitted to a sprocket mechanism through the gear shaft 91 and drives the sprocket mechanism to act, so that windowing is realized.
Preferably, the fixing base 42 is a U-shaped structure, a through hole is formed in the other end of the fixing base 42, and one end of the fixing rod 43 passes through the through hole and then is fixed to the magnetic block 412. The fixing rod 43 is provided with a stopper 431, and the spring 44 is compressed between the stopper 431 and the other end of the fixing seat 42.
The stopper 431 is an annular protrusion protruding from the surface of the fixing rod 43, and the stopper 431 may be integrally formed with the fixing rod 43 or may be sleeved and fixed on the fixing rod 43.
When the manual window opening mechanism is used, the fixed seat 42 is fixed, the left end of the fixed rod 43 penetrates through the through hole in the right end of the fixed seat 42, the left ends of the electromagnetic lock 41 and the fixed rod 43 are both located in the U-shaped groove of the fixed seat 42, the electromagnet 411 of the electromagnetic lock 41 is fixed at the left end of the fixed seat 42, the magnetic block 412 is fixed at the right end of the fixed rod 43, and in a power-on state, the fixed rod 43 is moved leftwards by the adsorption force of the electromagnet 411 on the magnetic block 412, so that the toothed shaft 91 is meshed with the first gear 86 of the manual window opening mechanism 8 and separated from the first bevel gear 93 of the manual window opening mechanism 5, and at the moment, the electric. In this state, the spring 44 is located outside the U-shaped groove of the fixing seat 42 and compressed between the stopper 431 and the right end of the fixing seat 42. When the power is off, the electromagnet 411 does not adsorb the magnetic block 412 any more and is disconnected from the magnetic block 412, the spring 44 loses constraint and returns to a normal state, the fixed rod 43 moves rightwards, the separation of the gear shaft 91 and the first gear 86 is realized, the self-locking worm mechanism does not act on the gear shaft 91 any more, the pneumatic spring 6 arranged on the window sash 2 and the window frame 1 is automatically opened, the window sash 2 is opened, and the window opening is realized; the force of the pneumatic spring 6 is smaller than the windowing force required when the electric windowing mechanism 8 is started. The fixing lever 43 moves rightward to effect the separation of the pinion shaft 91 from the first gear 86 while the second bevel gear 52 meshes with the first bevel gear 93. When the window needs to be closed, the second bevel gear 52 can be rotated by shaking the hand crank 51, so that the chain wheel mechanism is driven to operate through the first bevel gear 93, the gear shaft 91 and the second gear 92, and the window is closed. After the power supply is resumed, the electromagnet 411 re-attracts the magnetic block 412 to move the fixing lever to the left, so that the gear 91 is engaged with the first gear 86, and the electric windowing function is resumed.
Preferably, a second transmission rod 94 is further included, the second gear 92 is mounted at one end of the second transmission rod 94, and the other end of the second transmission rod 94 is connected to the first transmission rod 32.
The second gear 92 transmits power to the sprocket gear through the second transmission lever 94.
Preferably, the sprocket mechanism comprises a first transmission rod 32, a sprocket 33, a fifth bevel gear 31 and a sixth bevel gear, the fifth bevel gear 31 is installed on the first transmission rod 32 and meshed with the sixth bevel gear, the sixth bevel gear is coaxially installed with the sprocket 33, the sprocket 33 is meshed with the chain 34, and the first transmission rod 32 is connected with the second gear 92.
The first driving lever 32 is connected to the second driving lever 94, and the second driving lever 94 transmits power to the first driving lever 32, the fifth bevel gear 31, the sixth bevel gear and the sprocket 33, thereby driving the chain 34 to extend or retract.
When the power is cut off, the pneumatic spring 6 is automatically opened, the chain 34 is pushed out by the opening force of the pneumatic spring 6, and the power is reversely transmitted among the chain wheel 33, the first transmission rod 32, the second transmission rod 94, the second gear 92 and the gear shaft 91 to realize the windowing.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (9)
1. An electric smoke exhaust window capable of being automatically opened in power failure comprises a window frame (1), window sashes (2), a chain window opener (3) and a window opening driving device, wherein one side of each window sash (2) is hinged to the window frame (1), the chain window opener (3) comprises a chain (34) and a chain wheel mechanism for driving the chain (34), the extending end of the chain (34) is fixed on the window sashes (2), the window opening driving device is connected with the chain wheel mechanism, and the electric smoke exhaust window is characterized in that,
the window frame further comprises a pneumatic spring (6), one end of the pneumatic spring (6) is hinged to the window frame (1), and the other end of the pneumatic spring (6) is hinged to the window sash (2);
the windowing driving device comprises an electric windowing mechanism (8), a pneumatic windowing mechanism (4) and a clutch (9);
the electric windowing mechanism (8) comprises a motor (81), a self-locking worm mechanism and a first gear (86), and the self-locking worm mechanism transmits the torque of the motor (81) to the first gear (86);
the pneumatic windowing mechanism (4) comprises a fixed seat (42), an electromagnetic lock (41), a fixed rod (43) and a spring (44), wherein the electromagnetic lock (41) comprises an electromagnet (411) and a magnetic block (412), the magnetic block (412) is fixed on the fixed rod (43), and the electromagnet (411) is fixed on the fixed seat (42) and is far away from one end of the fixed rod (43); the magnetic block (412) is adsorbed on the electromagnet (411) when the electromagnet (411) is electrified, and the spring (44) is sleeved on the fixed rod (43) and compressed between the fixed rod (43) and the fixed seat (42);
the clutch (9) comprises a gear shaft (91) and a second gear (92) meshed with the gear shaft (91), and the second gear (92) transmits the torque of the gear shaft (91) to the chain wheel mechanism; the gear shaft (91) is mounted on the fixed rod (43) through a bearing and can be meshed with or separated from the first gear (86) under the action of a spring (44).
2. The power-off automatic opening electric smoke discharging window according to the claim 1, further comprising a manual window opening mechanism (5) and a first bevel gear (93), wherein the manual window opening mechanism (5) comprises a hand crank (51) and a second bevel gear (52), the second bevel gear (52) is installed on the hand crank (51) and is driven to rotate by the hand crank (51); the first bevel gear (93) is mounted on the fixed rod (43) through a bearing and is coaxially mounted with the gear shaft (91), and the first bevel gear (93) can be separated from or meshed with the second bevel gear (52) under the action of the spring (44).
3. The powered automatic opening electric smoke discharging window according to the claim 1 or 2, wherein said self-locking worm mechanism comprises a worm (82) and a bevel gear (83) engaged with the worm (82).
4. The electric window for smoke exhaust opened automatically in case of power failure according to claim 3, wherein said electric window opening mechanism (8) further comprises a third bevel gear (87), a fourth bevel gear (84) and a transmission shaft (85), said third bevel gear (87) is coaxially installed with said bevel gear (83), said fourth bevel gear (84) is installed at one end of said transmission shaft (85) and meshed with said third bevel gear (87), said first gear (86) is installed at the other end of said transmission shaft (85).
5. The powered automatic opening electric smoke discharging window according to the claim 1, wherein said magnetic block (412) is made of magnetic material.
6. The power-off automatic opening electric smoke exhaust window according to claim 1 or 2, wherein the fixing seat (42) is a U-shaped structure, the other end of the fixing seat (42) is provided with a through hole, and one end of the fixing rod (43) is fixed with the magnetic block (412) after passing through the through hole.
7. The power-off automatic opening electric smoke discharging window according to the claim 1 or 2, wherein said fixing rod (43) is provided with a stopper (431), said spring (44) is compressed between the stopper (431) and the other end of the fixing base (42).
8. An electrically powered automatically opening smoke exhaust window according to claim 1 or 2, wherein said chain wheel mechanism comprises a first driving rod (32), a chain wheel (33), a fifth bevel gear (31) and a sixth bevel gear, said fifth bevel gear (31) is mounted on said first driving rod (32) and meshed with said sixth bevel gear, said sixth bevel gear is coaxially mounted with said chain wheel (33), said chain wheel (33) is meshed with a chain (34), said first driving rod (32) is connected with a second gear (92).
9. The power-off automatic opening electric smoke discharging window according to the claim 8, further comprising a second transmission rod (94), said second gear (92) is installed on one end of the second transmission rod (94), the other end of the second transmission rod (94) is connected with the first transmission rod (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020528284.2U CN211974708U (en) | 2020-04-10 | 2020-04-10 | Power-off automatic opening electric smoke exhaust window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020528284.2U CN211974708U (en) | 2020-04-10 | 2020-04-10 | Power-off automatic opening electric smoke exhaust window |
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| Publication Number | Publication Date |
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| CN211974708U true CN211974708U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020528284.2U Active CN211974708U (en) | 2020-04-10 | 2020-04-10 | Power-off automatic opening electric smoke exhaust window |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006632A (en) * | 2021-02-01 | 2021-06-22 | 浙江夏厦精密制造股份有限公司 | Window-swinging motor shaft for automobile window |
-
2020
- 2020-04-10 CN CN202020528284.2U patent/CN211974708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006632A (en) * | 2021-02-01 | 2021-06-22 | 浙江夏厦精密制造股份有限公司 | Window-swinging motor shaft for automobile window |
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