Motor home exhaust fan convenient to start and stop and motor home

Abstract

The utility model relates to the technical field of touring car supplies, in particular to a touring car exhaust fan convenient to open and close and a touring car. The touring car exhaust fan comprises a support, an exhaust fan body arranged on the support, a turning cover arranged on one side of the support and hinged to the support, and a turning cover opening and closing mechanism; a hinge seat is arranged on the turning cover, and a guide groove is formed in the hinge seat; the flip opening and closing mechanism comprises a swing arm, a transmission assembly connected with the swing arm, a motor assembly connected with the transmission assembly and a knob assembly connected with the transmission assembly, one end of the swing arm is hinged to the support, and the other end of the swing arm is slidably arranged in the guide groove; a hinged shaft of the swing arm and the support is parallel to a hinged shaft of the turning cover and the support; the motor assembly or the knob assembly drives the transmission assembly to drive one end of the swing arm to rotate along a hinged shaft of the swing arm and the support, and the other end slides along the guide groove to drive the turning cover to turn over to be opened and closed. The utility model can be driven by a motor, is convenient to use, can be driven by a knob, and meets the use requirements of users in different scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a house car article technical field, concretely is a kind of house car exhaust fan and house car of convenient opening and closing. BACKGROUND

[0002] The house car is usually equipped with seats, tables, water supplies, cooking facilities and storage facilities, etc., and can meet the living and life needs of people in travel, and is called "mobile home". Since the space of the house car is relatively closed, the exhaust fan plays an important role in the house car, which can not only improve the comfort of living, but also can ensure the health and safety of passengers to a certain extent. The current flap of the exhaust fan on the house car is mainly opened by a knob, and the knob structure is simple and has high reliability, and will not fail due to electronic failure. However, manual operation is required every time in the daily use process, which is troublesome to use. SUMMARY

[0003] The utility model aims at providing a kind of house car exhaust fan and house car of convenient opening and closing, solve the problem that the flap of the exhaust fan on the existing house car can only be opened by a knob, which causes the use to be troublesome every time in the daily use process.

[0004] To solve the above problems, the utility model provides the technical scheme as follows:

[0005] A kind of house car exhaust fan of convenient opening and closing, including support, exhaust fan main body being arranged on the support, flap being arranged on one side of the support and being hinged with the support, and the flap opening and closing mechanism for driving the flap overturning opening and closing;Hinged seat is arranged on the flap, and guide groove is arranged on the hinged seat;The flap opening and closing mechanism includes swing arm, transmission assembly connected with the swing arm, motor assembly connected with the transmission assembly, and knob assembly connected with the transmission assembly, one end of the swing arm is hinged with the support, and the other end is slidably arranged in the guide groove;The hinged shaft of the swing arm and the support is parallel to the hinged shaft of the flap and the support;The motor assembly or the knob assembly drives the transmission assembly to drive one end of the swing arm to rotate along the hinged shaft of the swing arm and the support, and the other end slides along the guide groove to drive the flap to overturn and open and close.

[0006] The house car exhaust fan of convenient opening and closing as described above, the motor assembly includes motor and gear reduction assembly, the input end of the gear reduction assembly is provided with input shaft, the output end of the gear reduction assembly is provided with output shaft, the input shaft is connected with the motor, and the output shaft is connected with the transmission assembly;The knob assembly includes knob and rotating shaft, and the rotating shaft is coaxial with the output shaft and is fixedly connected.

[0007] The rotating shaft is integrally formed with the output rotating shaft.

[0008] The gear reduction assembly comprises a first end pinion coaxial with and fixedly connected to the input rotating shaft, a first reduction gear wheel engaged with the first end pinion, a first reduction pinion coaxial with and fixedly connected to the first reduction gear wheel, a second reduction gear wheel engaged with the first reduction pinion, a second reduction pinion coaxial with and fixedly connected to the second reduction gear wheel, a third reduction gear wheel engaged with the second reduction pinion, a third reduction pinion coaxial with and fixedly connected to the third reduction gear wheel, and a terminal gear wheel engaged with the third reduction pinion and coaxial with and fixedly connected to the output rotating shaft.

[0009] The transmission assembly comprises a worm and a transmission gear wheel matched with the worm, the worm is connected with the output rotating shaft, and the transmission gear wheel is connected with the swing arm.

[0010] The output end of the gear reduction assembly is provided with an output shaft sleeve, a plurality of shaft sleeve grooves penetrating through both ends of the output shaft sleeve and arranged in the circumferential direction of the output shaft sleeve are arranged on the output shaft sleeve, a plurality of output protrusions matched with the shaft sleeve grooves are arranged on the output rotating shaft, and a plurality of worm protrusions matched with the shaft sleeve grooves are arranged on the worm.

[0011] The flip opening and closing mechanism comprises two parallel swing arms, a synchronous rotating shaft connected with the two swing arms and parallel to the hinge shaft of the flip and the support, the flip is provided with the hinge seats corresponding to the two swing arms, the hinge seats are provided with the guide grooves, one end of the swing arm is fixedly connected with the synchronous rotating shaft, and the other end is slidably arranged in the guide groove, and the synchronous rotating shaft is coaxial with and fixedly connected with the transmission gear wheel.

[0012] The motor assembly comprises a motor shell, the motor and the gear reduction assembly are arranged in the motor shell, the transmission assembly comprises a transmission shell, and the worm and the transmission gear wheel are arranged in the transmission shell.

[0013] One end of the swing arm is provided with a sliding block perpendicular to the swing arm, and the sliding block is slidably arranged in the guide groove.

[0014] A motor home comprises a vehicle body, and the vehicle body is provided with the convenient opening and closing exhaust fan.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The house car exhaust fan provided by the utility model has the cover opening and closing mode of the motor assembly driving and the knob assembly driving, the cover can be opened and closed by the motor assembly driving in daily use, manual operation is reduced, and the house car exhaust fan is convenient to use, the cover can be opened and closed by the knob assembly driving when an emergency such as unstable power supply or equipment failure occurs, and therefore the use requirement of users in different scenes can be met well, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 Structure diagram of the house car exhaust fan of the utility model embodiment Figure 1 .

[0019] Figure 2 Structure diagram of the house car exhaust fan of the utility model embodiment Figure 2 .

[0020] Figure 3 Structure diagram of the cover opening and closing mechanism in the house car exhaust fan of the utility model embodiment.

[0021] Figure 4 Local structure exploded view of the cover opening and closing mechanism in the house car exhaust fan of the utility model embodiment.

[0022] Figure 5 Structure diagram of the gear reduction assembly in the house car exhaust fan of the utility model embodiment.

[0023] Among them, the corresponding number of the sign is as follows:

[0024] 1, support; 11, fixed support; 2, exhaust fan body; 3, flap; 31, hinge seat; 32, guide groove; 4, flap opening and closing mechanism; 41, swing arm; 411, sliding block; 42, synchronous rotating shaft; 43, transmission assembly; 431, worm; 4311 worm protrusion; 432, transmission gear; 433, transmission housing; 44, motor assembly; 441, motor; 442, gear reduction assembly; 4421, first end pinion; 4422, first reduction gear; 4423, first reduction pinion; 4424, second reduction gear; 4425, second reduction pinion; 4426, third reduction gear; 4427, third reduction pinion; 4428, end gear; 443, input rotating shaft; 444, output rotating shaft; 4441, output protrusion; 445, output shaft sleeve; 4451, sleeve groove; 446, motor housing; 45, knob assembly; 451, knob; 452, rotating shaft; 5, sealing ring; 6, control panel; 7, exhaust fan drive motor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] Please refer to the drawings in the embodiments of the present application Figure 1 to the drawings in the embodiments of the present application Figure 5The embodiment provides a convenient opening and closing exhaust fan for a house car, which comprises a support 1, an exhaust fan body 2 arranged on the support 1, a flip cover 3 arranged on one side of the support 1 and hinged to the support 1, and a flip cover opening and closing mechanism 4 for driving the flip cover 3 to flip and open and close; the flip cover 3 is provided with a hinge seat 31, and the hinge seat 31 is provided with a guide groove 32; the flip cover opening and closing mechanism 4 comprises a swing arm 41, a transmission assembly 43 connected with the swing arm 41, a motor assembly 44 connected with the transmission assembly 43, and a knob assembly 45 connected with the transmission assembly 43, one end of the swing arm 41 is hinged to the support 1, and the other end is slidingly arranged in the guide groove 32; the hinge shaft of the swing arm 41 and the support 1 is parallel to the hinge shaft of the flip cover 3 and the support 1; the motor assembly 44 or the knob assembly 45 drives the transmission assembly 43 to drive one end of the swing arm 41 to rotate along the hinge shaft of the swing arm 41 and the support 1, and the other end to slide along the guide groove 32, so as to drive the flip cover 3 to flip and open and close. The convenient opening and closing exhaust fan for a house car provided by the embodiment has the flip cover opening and closing mode driven by the motor assembly 44 and the knob assembly 45, and in daily use, the flip cover 3 can be driven to open and close by the motor assembly 44, manual operation is reduced, and use is convenient; in an emergency, for example, unstable power supply or equipment failure, the flip cover 3 can be driven to open and close by the knob assembly 45, so that the use demand of users in different scenes can be well met, and user experience is improved.

[0027] Further, the support 1 is provided with a sealing ring 5 on the side where the flip cover 3 is arranged, the other side of the support 1 is provided with a control panel 6, the motor assembly 44 is electrically connected with the control panel 6, when the convenient opening and closing exhaust fan for a house car is installed on a house car, the support 1 is connected with a vehicle body, the control panel 6 is located inside the vehicle body, and the flip cover 3 is located outside the vehicle body. The embodiment further comprises an exhaust fan driving motor 7, the support 1 is provided with a fixed support 11, and the exhaust fan body 2 and the exhaust fan driving motor 7 are arranged on the fixed support 11.

[0028] Further, the motor assembly 44 in the embodiment comprises a motor 441 and a gear reduction assembly 442, an input rotating shaft 443 is arranged at the input end of the gear reduction assembly 442, an output rotating shaft 444 is arranged at the output end of the gear reduction assembly 442, the input rotating shaft 443 is connected with the motor 441, and the output rotating shaft 444 is connected with the transmission assembly 43; the knob assembly 45 comprises a knob 451 and a rotating shaft 452, the rotating shaft 452 is coaxial with and fixedly connected with the output rotating shaft 444. In the embodiment, the high-speed rotation of the motor 441 is converted into low-speed high-torque output through the gear reduction assembly 442, and then transmitted to the transmission assembly 43 through the output rotating shaft 444, so as to drive the transmission assembly 43 to drive one end of the swing arm 41 to rotate along the hinge shaft of the swing arm 41 and the support 1, and the other end to slide along the guide groove 32, thereby realizing the opening and closing of the flip cover 3. Since the rotating shaft 452 in the knob assembly 45 is coaxial with and fixedly connected with the output rotating shaft 444, the rotating shaft 452 and the output rotating shaft 444 can also be driven to rotate synchronously by rotating the knob 451, so as to drive the transmission assembly 43 to drive one end of the swing arm 41 to rotate along the hinge shaft of the swing arm 41 and the support 1, and the other end to slide along the guide groove 32, thereby realizing the opening and closing of the flip cover 3. In addition, in the embodiment, the knob 451 and the rotating shaft 452 are fixedly connected through screws, and the detachable structure facilitates replacement of the knob 451 or the rotating shaft 452. In some embodiments, the knob 451 and the rotating shaft can be integrally formed and fixed, and the structure is simpler.

[0029] Further, the rotating shaft 452 and the output rotating shaft 444 in the embodiment are integrally formed. The integrally formed structure is simpler and more stable, which can effectively avoid relative rotation of the rotating shaft 452 and the output rotating shaft 444, and ensure good driving effect.

[0030] Further, the gear reduction assembly 442 comprises a first end pinion 4421 coaxial with and fixedly connected to the input rotating shaft 443, a first reduction gear wheel 4422 engaged with the first end pinion 4421, a first reduction pinion 4423 coaxial with and fixedly connected to the first reduction gear wheel 4422, a second reduction gear wheel 4424 engaged with the first reduction pinion 4423, a second reduction pinion 4425 coaxial with and fixedly connected to the second reduction gear wheel 4424, a third reduction gear wheel 4426 engaged with the second reduction pinion 4425, a third reduction pinion 4427 coaxial with and fixedly connected to the third reduction gear wheel 4426, and a last gear wheel 4428 engaged with the third reduction pinion 4427 and coaxial with and fixedly connected to the output rotating shaft 444. Through the cooperation of the gears in the gear reduction assembly 442, the high-speed rotation of the motor 441 can be effectively converted into low-speed high-torque output. In the embodiment, the gear reduction assembly 442 has a compact structure and occupies less space. Moreover, compared with other reduction modes, the meshing relationship of the gears adopted in the embodiment makes the energy transmission more stable, reduces vibration and impact, and at the same time ensures the stability and durability during long-time operation.

[0031] Further, the motor assembly 44 comprises a motor housing 446, and the motor 441 and the gear reduction assembly 442 are arranged in the motor housing 446. The motor housing 446 can fix the motor 441 and the gear reduction assembly 442 and protect them from external interference, so as to ensure the driving effect and the service life of the motor 441 and the gear reduction assembly 442.

[0032] Further, the transmission assembly 43 comprises a worm 431 and a transmission gear 432 matched with the worm 431, the worm 431 is connected with the output rotating shaft 444, and the transmission gear 432 is connected with the swing arm 41. The worm 431 and the transmission gear 432 have simple structure, stable transmission and good carrying capacity. Moreover, the spiral shape of the worm 431 makes the contact point gradually move during rotation, which can provide high-precision transmission effect and help reduce vibration and noise.

[0033] Further, the output end of the gear reduction assembly 442 is provided with an output shaft sleeve 445, a plurality of shaft sleeve grooves 4451 penetrating through both ends of the output shaft sleeve 445 and arranged in a circumferential array of the output shaft sleeve 445 are arranged on the output shaft sleeve 445, a plurality of output protrusions 4441 matched with the shaft sleeve grooves 4451 are arranged on the output rotating shaft 444, and a plurality of worm protrusions 4311 matched with the shaft sleeve grooves 4451 are arranged on the worm 431. By matching the shaft sleeve grooves 4451 with the output protrusions 4441 and the worm protrusions 4311, the output shaft sleeve 445 can lock the output rotating shaft 444 and the worm 431 in the circumferential direction, so that the output rotating shaft 444 and the worm 431 can rotate synchronously.

[0034] Further, the transmission assembly 43 comprises a transmission housing 433, and the worm 431 and the transmission gear 432 are arranged in the transmission housing 433. The transmission housing 433 can fix the worm 431 and the transmission gear 432 and protect the worm 431 and the transmission gear 432, so as to avoid interference of the mechanical movement of the worm 431 and the transmission gear 432 by the outside world, guarantee the transmission effect, and guarantee the service life of the worm 431 and the transmission gear 432. The transmission housing 433 is provided with a limiting groove matched with both ends of the worm 431, so as to limit the axial movement of the worm 431 and guarantee the transmission effect of the worm 431 and the transmission gear 432.

[0035] Further, the flip opening and closing mechanism 4 comprises two parallel arranged swing arms 41, and further comprises a synchronous rotating shaft 42 connected with the two swing arms 41 and parallel to the hinge shaft of the support 1 and the flip 3. The flip 3 is provided with the hinge seats 31 corresponding to the two swing arms 41, and the two hinge seats 31 are provided with the guide grooves 32 correspondingly. One end of the swing arm 41 is fixedly connected with the synchronous rotating shaft 42, and the other end is slidably arranged in the guide groove 32. The synchronous rotating shaft 42 is coaxial with and fixedly connected with the transmission gear 432. In this embodiment, the swing arm 41 is provided with a sliding block 411 perpendicular to the swing arm 41, and the sliding block 411 is slidably arranged in the guide groove 32. This structure is simple and convenient to install.

[0036] The convenient opening and closing exhaust fan for a house car provided by the embodiment has a flip opening and closing mode driven by the motor assembly 44 and the knob assembly 45, in daily use, the motor 441 can be started, high-speed rotation of the motor 441 is transmitted to the gear reduction assembly 442 through the input shaft 443, is output through the output shaft 444 after being decelerated by the gear reduction assembly 442, is driven to rotate the synchronous shaft 42 through the transmission of the worm 431 and the transmission gear 432, thereby driving one end of the two swing arms 41 to rotate along the hinge shaft of the swing arm 41 and the support 1, the other end of the two swing arms 41 slides along the corresponding guide groove 32, the flip 3 is realized to open and close, manual operation is reduced, and use is convenient, in an emergency, for example, unstable power supply or equipment failure, the knob 451 can be twisted, the rotating shaft 452 and the output shaft 444 fixedly connected with the rotating shaft 452 are simultaneously rotated, the synchronous shaft 42 is driven to rotate through the transmission of the worm 431 and the transmission gear 432, thereby driving one end of the two swing arms 41 to rotate along the hinge shaft of the swing arm 41 and the support 1, the other end of the two swing arms 41 slides along the corresponding guide groove 32, the flip 3 is realized to open, thereby meeting the use requirements of users in different scenes well and being favorable to improving user experience.

[0037] The embodiment is applied to a house car, the house car comprises a vehicle body, and the vehicle body is provided with the convenient opening and closing exhaust fan for a house car described above. The house car has the convenient opening and closing exhaust fan for a house car, which has a flip opening and closing mode driven by the motor assembly 44 and the knob assembly 45, in daily use, the flip 3 can be driven to open and close by the motor assembly 44, manual operation is reduced, and use is convenient, in an emergency, for example, unstable power supply or equipment failure, the flip 3 can be driven to open by the knob assembly 45, thereby meeting the use requirements of users in different scenes well and being favorable to improving user experience.

[0038] It should be understood that the terms "first", "second" and the like are used in the present application to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, under the premise of can make a number of improvements and deformation, these improvements and deformation also be considered as the protection scope of the present application.

Claims

1. A conveniently openable and closeable exhaust fan for RVs, characterized in that, The utility model provides a kind of exhaust fan, including support (1), be provided on the support (1) exhaust fan main body (2), be provided on the support (1) one side and with the hinge of support (1) flap (3), and for driving the flap (3) flip opening and closing flap opening and closing mechanism (4);Flap (3) is equipped with hinge seat (31), hinge seat (31) is equipped with guide slot (32);Flap opening and closing mechanism (4) includes swing arm (41), with the transmission assembly (43) of swing arm (41) connection, with the motor assembly (44) of transmission assembly (43) connection, and with the knob assembly (45) of transmission assembly (43) connection, swing arm (41) one end is hinged with support (1), the other end is slidably provided in guide slot (32);The hinge shaft of swing arm (41) and support (1) is parallel to the hinge shaft of flap (3) and support (1);Motor assembly (44) or knob assembly (45) drives transmission assembly (43) to drive the one end of swing arm (41) rotation along the hinge shaft of swing arm (41) and support (1), the other end slides along guide slot (32), to drive flap (3) flip opening and closing.

2. The exhaust fan according to claim 1, wherein The motor assembly (44) includes a motor (441) and a gear reduction assembly (442), the input end of the gear reduction assembly (442) is provided with an input shaft (443), the output end of the gear reduction assembly (442) is provided with an output shaft (444), the input shaft (443) is connected with the motor (441), and the output shaft (444) is connected with the transmission assembly (43); The knob assembly (45) includes a knob (451) and a rotating shaft (452), the rotating shaft (452) is coaxial with the output shaft (444) and is fixedly connected.

3. The easily opened and closed exhaust fan for a recreational vehicle according to claim 2, characterized by The rotating shaft (452) is integrally formed with the output shaft (444).

4. The easily opened and closed exhaust fan for a recreational vehicle according to claim 2, characterized by The gear reduction assembly (442) includes a first end pinion (4421) coaxial with and fixedly connected with the input shaft (443), a first reduction gear (4422) engaged with the first end pinion (4421), a first reduction pinion (4423) coaxial with and fixedly connected with the first reduction gear (4422), a second reduction gear (4424) engaged with the first reduction pinion (4423), a second reduction pinion (4425) coaxial with and fixedly connected with the second reduction gear (4424), a third reduction gear (4426) engaged with the second reduction pinion (4425), a third reduction pinion (4427) coaxial with and fixedly connected with the third reduction gear (4426), and a last gear (4428) engaged with the third reduction pinion (4427) and coaxial with and fixedly connected with the output shaft (444).

5. The easily opened and closed exhaust fan for a recreational vehicle according to claim 2, wherein The transmission assembly (43) comprises a worm (431) and a transmission gear (432) matched with the worm (431), the worm (431) is connected with the output rotating shaft (444), and the transmission gear (432) is connected with the swing arm (41).

6. The easily opened and closed exhaust fan for a recreational vehicle according to claim 5, characterized by The output end of the gear reduction assembly (442) is provided with an output shaft sleeve (445), a plurality of shaft sleeve grooves (4451) penetrating through both ends of the output shaft sleeve (445) and arranged in the circumferential direction of the output shaft sleeve (445) are arranged on the output shaft sleeve (445), a plurality of output protrusions (4441) matched with the shaft sleeve grooves (4451) are arranged on the output rotating shaft (444), and a plurality of worm protrusions (4311) matched with the shaft sleeve grooves (4451) are arranged on the worm (431).

7. The easily opened and closed exhaust fan for a recreational vehicle according to claim 5, wherein The flip opening and closing mechanism (4) comprises two swing arms (41) arranged in parallel, further comprises a synchronous rotating shaft (42) connected with the two swing arms (41) and parallel to the hinge shaft of the support (1) and the flip (3), the flip (3) is provided with the hinge seats (31) corresponding to the two swing arms (41) one by one, the two hinge seats (31) are provided with the guide grooves (32) correspondingly, one end of the swing arm (41) is fixedly connected with the synchronous rotating shaft (42), and the other end is slidably arranged in the guide groove (32), and the synchronous rotating shaft (42) is coaxial with and fixedly connected with the transmission gear (432).

8. The easily opened and closed exhaust fan for a recreational vehicle according to claim 5, characterized by The motor assembly (44) comprises a motor housing (446), and the motor (441) and the gear reduction assembly (442) are arranged in the motor housing (446); the transmission assembly (43) comprises a transmission housing (433), and the worm (431) and the transmission gear (432) are arranged in the transmission housing (433).

9. The easily opened and closed exhaust fan for a recreational vehicle according to claim 1, characterized by One end of the swing arm (41) is provided with a sliding block (411) perpendicular to the swing arm (41), and the sliding block (411) is slidably arranged in the guide groove (32).

10. A recreational vehicle comprising a vehicle body, characterised in that, The vehicle body is provided with the convenient opening and closing exhaust fan for a motor home according to any one of claims 1-9.

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