CN217583039U

CN217583039U - A gear box and lifting window for lifting window

Info

Publication number: CN217583039U
Application number: CN202220028057.2U
Authority: CN
Inventors: 李太福
Original assignee: Guangdong Lianghua Technology Co ltd
Current assignee: Guangdong Lianghua Technology Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-10-14
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a gear box for lift window, including the motor, with worm gear pair, the rotation axis that motor drive connects, the middle part of rotation axis with worm gear pair transmission is connected, the both ends of rotation axis are used for connecting the relative both sides of lift window form respectively. The worm gear pair is driven by a motor, so that the rotating shaft can be driven, and the middle part of the rotating shaft is in transmission connection with the worm gear pair, so that two ends of the rotating shaft are used as output ends. So, not only need a motor alright realize carrying out the simultaneous drive to the both sides of lift window form, the phenomenon of belt can not take place for the transmission process moreover, has improved driven stability and accuracy nature.

Description

A gear box and lifting window for lifting window

Technical Field

The utility model relates to a lift window technical field especially relates to a gear box and lift window for lift window.

Background

The lifting window can be operated by electric power instead of manual operation, so that the lifting window is convenient and fast to use. The lifting window can be used in office buildings, sea-going buildings, houses and the like. With the appearance and gradual improvement of the lifting window, the technology of the lifting window is more mature.

However, the existing lifting window is mainly driven by the combination of a screw rod, a screw nut and a gear pair, namely, two motors are respectively installed on two opposite sides of a lifting window body, and the two motors move together to drive the lifting window body to perform lifting movement. Or the belt pulley assembly is driven by the independent motor, and the driving wheel and the driven wheel of the belt pulley are respectively in transmission with two opposite sides of the lifting window body so as to drive the lifting window body to perform lifting motion. Obviously, the former requires a large number of motors and requires synchronous movement of the motors, which not only results in high cost, but also results in high failure rate; the latter is driven by a pulley assembly, and is easy to slip.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a gear box for lifting window, which not only can be driven by an independent motor to reduce cost and failure rate, but also has a stable transmission process.

The second objective of the present invention is to provide a lifting window.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the gear box for the lifting window comprises a motor, a worm and gear pair and a rotating shaft, wherein the worm and gear pair is in driving connection with the motor, the middle of the rotating shaft is in driving connection with the worm and gear pair, and two ends of the rotating shaft are respectively used for being connected with two opposite sides of a lifting window body.

Further, the worm-and-gear pair comprises a first worm and a first worm wheel, and the first worm and the output shaft of the motor are coaxially arranged and fixedly connected with each other; the first worm wheel is meshed with the first worm and is in transmission connection with the rotating shaft.

Further, the worm-gear pair further comprises a second worm and a second worm wheel, wherein the second worm is coaxially arranged with the first worm wheel and is fixed on the first worm wheel; the second worm wheel is engaged with the second worm and fixed to the rotary shaft, and the second worm wheel is coaxially arranged with the rotary shaft.

Furthermore, the first worm wheel and the second worm are respectively provided with at least two worm wheels, and the two first worm wheels are respectively arranged on two opposite sides of the first worm and are simultaneously meshed with the first worm; the two second worms are respectively arranged on two opposite sides of the second worm wheel and are simultaneously meshed with the second worms.

Further, the gear box for the lifting window further comprises a box body, the box body is provided with an installation cavity, and the first worm, the first worm wheel, the second worm and the second worm wheel are all accommodated in the installation cavity; the motor is arranged outside the box body, and an output shaft of the motor is parallel to the rotating shaft.

Further, the axis of the first worm wheel is perpendicular to the output shaft of the motor. The axis of the first worm wheel is perpendicular to the axis of the second worm wheel.

Further, the end of the first worm far away from the motor penetrates out of the box body.

Further, the end part, far away from the motor, of the first worm is in a polygonal structure.

Furthermore, two ends of the second worm are respectively installed on the box body through a group of first bearing pairs; the rotating shaft is mounted on the box body through a group of second bearing pairs.

The second purpose of the utility model is realized by adopting the following technical scheme:

the lifting window comprises a lifting window body and the gear box for lifting the window, and the sections of two ends of the rotating shaft are both of non-circular structures; and two ends of the rotating shaft are in transmission connection with two opposite sides of the lifting window body in a one-to-one correspondence mode respectively.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the worm gear pair is driven by a motor, so that the rotating shaft can be driven, and the middle part of the rotating shaft is in transmission connection with the worm gear pair, so that two ends of the rotating shaft are used as output ends. So, not only need a motor alright realize carrying out the simultaneous drive to the both sides of lift window form, the phenomenon of belt can not take place for the transmission process moreover, has improved driven stability and accuracy nature.

Drawings

Fig. 1 is a schematic structural view of a gear case for a lifting window according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is another view of fig. 2.

In the figure: 1. a motor; 2. a rotating shaft; 3. a first worm; 4. a first worm gear; 5. a second worm; 6. A second worm gear; 7. a box body; 8. an end portion; 9. a second bearing set; 10. the first bearing pair.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" 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 "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used herein, "vertical," "horizontal," "left," "right," and similar expressions are for purposes of illustration only and do not represent the only embodiments.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 3 illustrate a gear box for a lifting window according to a preferred embodiment of the present invention, which includes a motor 1, a worm-and-gear pair connected to the motor 1, and a rotating shaft 2, wherein the middle of the rotating shaft 2 is connected to the worm-and-gear pair in a transmission manner, and two ends of the rotating shaft 2 are respectively used for connecting two opposite sides of a lifting window. Obviously, the rotating shaft 2 can be driven by driving the worm gear pair through the motor 1, and the middle part of the rotating shaft 2 is in transmission connection with the worm gear pair, so that two ends of the rotating shaft 2 are used as output ends. So, not only need a motor 1 alright realize carrying out the simultaneous drive to the both sides of lift window form, the phenomenon of belt can not take place moreover in the transmission process, has improved driven stability and accuracy nature.

Preferably, the worm-gear pair comprises a first worm 3 and a first worm wheel 4, the first worm 3 is coaxially arranged with the output shaft of the motor 1 and fixedly connected with each other; the first worm wheel 4 is meshed with the first worm 3 and is in transmission connection with the rotating shaft 2. The arrangement is that the transmission chain is as follows: motor 1 → first worm 3 → first worm wheel 4. It should be noted that the maximum static friction force is relatively small when the first worm 3 drives the first worm wheel 4, so that the driving process is relatively labor-saving. However, when the first worm wheel 4 drives the first worm 3, the maximum static friction force is large, so that the driving process is laborious. Set up like this, when motor 1 outage, shut down or trouble, carry out the auto-lock through frictional force based on the worm gear pair, can prevent that the lift window form from falling. It should be added that the friction force required for driving the first worm 3 based on the first worm wheel 4 has an upper limit value, that is, the weight of the lift window is required to be within a reasonable range, so as to prevent the first worm wheel 4 from driving the first worm 3 due to the excessive weight of the lift window, thereby avoiding the phenomenon of falling of the lift window.

Preferably, the worm-and-gear pair further comprises a second worm 5 and a second worm wheel 6, the second worm 5 being arranged coaxially with the first worm wheel 4 and being fixed to the first worm wheel 4; the second worm wheel 6 is engaged with the second worm 5 and fixed to the rotary shaft 2, and the second worm wheel 6 is arranged coaxially with the rotary shaft 2. The two-stage self-locking is realized through the self-locking of the first worm wheel 4 and the first worm 3 and the self-locking of the second worm wheel 6 and the second worm 5, so that the upper limit of the weight of the lifting window body can be improved.

More preferably, the first worm wheel 4 and the second worm 5 are each provided with at least two. The two first worm wheels 4 are respectively arranged on two opposite sides of the first worm 3 and are simultaneously meshed with the first worm 3; two second worms 5 are respectively provided on opposite sides of the second worm wheel 6 and simultaneously mesh with the second worms 5. So set up, make the transmission process of rotation axis 2 more steady. Moreover, at this time, the first worm 3 is sandwiched by the two first worm wheels 4, and the second worm wheel 6 is sandwiched by the two second worms 5, so that the whole worm-and-wheel pair operates more stably.

Preferably, the gearbox for the lifting window further comprises a box body 7, the box body 7 is provided with a mounting cavity, and the first worm 3, the first worm wheel 4, the second worm 5 and the second worm wheel 6 are all accommodated in the mounting cavity, so that the structural stability of the worm-and-gear pair is further improved. Further, the motor 1 is arranged outside the box body 7, and an output shaft of the motor 1 is parallel to the rotating shaft 2; in this way, the extending direction of the motor 1 is consistent with the extending direction of the rotating shaft 2, thereby reducing the space occupied by the gear box for lifting the window. More specifically, in order to further improve the structural stability of the worm gear pair, the axis of the first worm gear 4 is perpendicular to the output shaft of the motor 1; the axis of the first worm wheel 4 is perpendicular to the axis of the second worm wheel 6.

Preferably, the end 8 of the first worm 3 remote from the electric motor 1 penetrates outside the box 7. With the arrangement, when the motor 1 stops rotating, the end part 8 can be manually pulled, so that the lifting motion of the lifting window is realized, namely, the emergency mode in an emergency state is improved. In particular, in order to facilitate the pulling of the end 8 by the conventional tool, the end 8 of the first worm 3 remote from the motor 1 has a polygonal structure, such as a pentagonal structure, a hexagonal structure, an octagonal structure. Of course, an elliptical configuration or a rounded rectangular configuration, etc. may be used.

Preferably, both ends of the second worm 5 are respectively mounted to the box 7 through a set of first bearing pairs 10; the rotary shaft 2 is mounted to the housing 7 via a set of second bearing pairs 9.

The utility model also discloses a lifting window, lifting window including the lifting window form with a gear box for lifting window, the both ends cross-section of rotation axis 2 is non-circular structure (like rectangle structure or special-shaped structure etc.) preferably, of course, need adopt the drive key to assist when the both ends of rotation axis 2 are circular structure. Two ends of the rotating shaft 2 are in one-to-one corresponding transmission connection with two opposite sides of the lifting window body respectively.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A gear box for a lifting window, characterized in that: the lifting window comprises a motor (1), a worm-and-gear pair in driving connection with the motor (1), and a rotating shaft (2), wherein the middle of the rotating shaft (2) is in transmission connection with the worm-and-gear pair, and two ends of the rotating shaft (2) are respectively used for being connected with two opposite sides of a lifting window body.

2. A gearbox for a lifting window according to claim 1 wherein: the worm-gear worm pair comprises a first worm (3) and a first worm wheel (4), and the first worm (3) and an output shaft of the motor (1) are coaxially arranged and fixedly connected with each other; the first worm wheel (4) is meshed with the first worm (3) and is in transmission connection with the rotating shaft (2).

3. A gearbox for a lifting window according to claim 2 wherein: the worm-and-gear pair further comprises a second worm (5) and a second worm wheel (6), wherein the second worm (5) and the first worm wheel (4) are coaxially arranged and fixed on the first worm wheel (4); the second worm wheel (6) is engaged with the second worm (5) and fixed to the rotary shaft (2), and the second worm wheel (6) is arranged coaxially with the rotary shaft (2).

4. A gearbox for a lifting window according to claim 3 wherein: the first worm wheel (4) and the second worm (5) are provided with at least two, the two first worm wheels (4) are respectively arranged on two opposite sides of the first worm (3) and are meshed with the first worm (3) simultaneously; the two second worms (5) are respectively arranged on two opposite sides of the second worm wheel (6) and are meshed with the second worms (5) simultaneously.

5. A gearbox for a lifting window according to claim 3 wherein: the gearbox for the lifting window further comprises a box body (7), wherein the box body (7) is provided with a mounting cavity, and the first worm (3), the first worm wheel (4), the second worm (5) and the second worm wheel (6) are all accommodated in the mounting cavity; the motor (1) is arranged outside the box body (7), and an output shaft of the motor (1) is parallel to the rotating shaft (2).

6. The gear box for a lifting window according to claim 5, wherein: the axis of the first worm wheel (4) is vertical to the output shaft of the motor (1); the axis of the first worm wheel (4) is perpendicular to the axis of the second worm wheel (6).

7. The gear box for a lifting window according to claim 5, wherein: the end part (8) of the first worm (3) far away from the motor (1) penetrates out of the box body (7).

8. The gear box for a lifting window according to claim 7, wherein: the end part (8) of the first worm (3) far away from the motor (1) is of a polygonal structure.

9. A gearbox for lifting and lowering a window according to claim 5, wherein: two ends of the second worm (5) are respectively installed on the box body (7) through a group of first bearing pairs (10); the rotating shaft (2) is arranged on the box body (7) through a group of second bearing pairs (9).

10. The lifting window is characterized in that: comprising a lifting window and a gearbox for a lifting window according to any of claims 1-9, the cross-section of both ends of the rotating shaft (2) being of non-circular configuration; and two ends of the rotating shaft (2) are in transmission connection with two opposite sides of the lifting window body in a one-to-one correspondence mode respectively.