CN111520786A - Decoration cover mounting device and range hood applying same - Google Patents

Abstract

The invention discloses a decorative cover mounting device, which is characterized in that: including first casing, second casing and supporting component, the second casing can be fixed with outside installation basis, first casing has two, sets up respectively in the relative both sides of second casing, and two first casings all with second casing sliding connection to can be in opposite directions or keep away from ground rectilinear movement mutually, supporting component is including can along with first casing rectilinear movement, and can be relative first casing pivoted first support arm and second support arm, the respective one end of first support arm and second support arm rotates with first casing respectively and is connected, the respective other end of first support arm and second support arm is as the free end, can be close to each other respectively and rotate and leave the decoration cover or rotate and support the decoration cover apart from each other, the axis of rotation of first support arm and second support arm is parallel with the moving direction of first casing. A range hood applying the mounting device is also disclosed.

Description

Decoration cover mounting device and range hood applying same

Technical Field

The invention relates to an oil fume purification device, in particular to a decoration cover installation device and a range hood applying the installation device.

Background

The decoration cover of range hood is used for sheltering from the air-out cover and the air-out pipe at range hood top, plays pleasing to the eye, decorative effect, and the decoration cover can be taken out from range hood's top usually, carries out height control according to the height in user's house. The decoration cover is generally divided into a lower decoration cover fixed to the case and an upper decoration cover capable of being drawn out and drawn up and down, and the upper decoration cover is generally disposed inside the lower decoration cover for aesthetic and safety reasons. The lower decorative cover is divided into two different forms: 1. the split type lower decorative cover can be fixed on the box body after the range hood is installed, usually, screws are exposed, and the range hood has the characteristics of poor attractiveness, integrity and installation firmness, but is simple and convenient to install; 2. the integrated lower decorative cover is integrally connected or formed with the range hood box body, not only has a decorative function, but also generally has a use function, for example, a switch or a lamp is arranged on the lower decorative cover; the integrated lower decorative cover is generally used for a high-end range hood and is characterized in that the lower decorative cover cannot be mounted later and is integrally connected with the whole range hood, so that the upper decorative cover can only be pulled from bottom to top.

The existing drawable decorative cover has the following problems: 1. the gap between the decorative cover and the suspended ceiling is too large, and the appearance is influenced. 2. Before the decorative cover is installed, the shell of the range hood needs to be dismantled firstly, and the installation is inconvenient. 3. The decoration cover is connected with the hook or the wall from the outer surface of the decoration cover in a screw driving mode, and the appearance of the whole machine is damaged. 4. When the smoke tube shielded by the decorative cover needs to be cleaned or the electric part shielded by the decorative cover needs to be repaired, the shell of the range hood needs to be detached firstly, and the disassembly is inconvenient.

The applicant's chinese patent application No. 201610444600.6 discloses a mounting structure of a decorative cover of a range hood, and provides a mounting structure of a decorative cover of a range hood, which is convenient to mount and can realize seamless connection between the decorative cover and a ceiling. In the actual product application process, the mounting structure has the following problems: 1. the requirement on the installation precision of the hook is high: in vertical direction, the distance between couple and the furred ceiling needs to be measured and fix according to the designing requirement through installer, then decorates the unable installation of cover if the couple installation is on the high side, then decorates cover and furred ceiling and have the clearance if on the low side, influences beautifully. 2. Easy falling: because the structure is that the spring bolt is connected with the surface of the hook, if the hook is installed to the left or the right, the size of the contact surface between the spring bolt and the hook support is directly influenced. The motor of the range hood has self-excited vibration phenomenon in the high-speed operation process, and the impeller of the range hood has certain dynamic balance deviation under the influence of the manufacturing process and the use condition of a user, so that the range hood has small vibration in the use process. The long-term vibration accumulation causes the latch bolt and the hook to shift left or right or forward until the two are separated, resulting in the decorative cover falling off. 3. The front end of the lock tongue is exposed, which affects the beauty.

In order to realize seamless installation, chinese patent with application number 201610608530.3 discloses a range hood decorative cover lifting mechanism applied to the technical field of range hood parts, a fixing plate of the range hood decorative cover lifting mechanism is installed on a wall surface, a V-shaped left crank arm is installed on a left mounting plate, a V-shaped right crank arm is installed on a right mounting plate, one end of the left crank arm is connected with a left bracket of a decorative cover, one end of the right crank arm is connected with a right bracket of the decorative cover, a left crank arm tension spring is installed between the left crank arm and the left mounting plate, and a right crank arm tension spring is installed between the right crank arm and the right mounting plate.

As is known from the mounting process disclosed in the above patent document, the left/right support frame is mounted from front to back through the upper decorative cover, and the left/right crank arm head is rotated by pulling the left/right crank arm head, thereby mounting the decorative cover. That is, this mounting structure is applicable only to the above-described trim cover of the form 1, but is not applicable to the trim cover of the form 2; the decorative cover is only suitable for one size type of decorative cover, if the decorative cover is widened or narrowed, the decorative cover cannot be installed, and the decorative cover needs to be adjusted again according to the specific size of the decorative cover; although automatic installation can be realized through the extension spring in the installation, when decorating the cover and needing to dismantle, the extension spring has nevertheless become the resistance source of dismantling, leads to dismantling the difficulty.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a decoration cover installation device aiming at the defects of the prior art, so that the installation universality is improved, the automatic lifting adjustment of the decoration cover can be realized, and the seamless connection between the decoration cover and a suspended ceiling is realized.

The second technical problem to be solved by the invention is to provide a range hood applying the mounting device.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a decorate cover installation device which characterized in that: including first casing, second casing and supporting component, the second casing can be fixed with outside installation basis, first casing has two, sets up respectively in the relative both sides of second casing, and two first casings all with second casing sliding connection to can be in opposite directions or keep away from ground rectilinear movement mutually, supporting component is including can along with first casing rectilinear movement, and can be relative first casing pivoted first support arm and second support arm, the respective one end of first support arm and second support arm rotates with first casing respectively and is connected, the respective other end of first support arm and second support arm is as the free end, can be close to each other respectively and rotate and leave the decoration cover or rotate and support the decoration cover apart from each other, the axis of rotation of first support arm and second support arm is parallel with the moving direction of first casing.

Preferably, for the convenience of driving first support arm and second support arm antiport simultaneously, installation device is still including setting up the first actuating mechanism in first casing, the one end of first support arm is directly or indirectly connected through first round pin axle and first actuating mechanism's output shaft to rotate around self axis by first round pin axle of first actuating mechanism drive, the one end of second support arm is passed through second round pin axle and is connected with first casing rotation, be provided with first gear on the first round pin axle, be provided with the second gear with first gear engagement on the second round pin axle.

Preferably, in order to facilitate the sliding connection of the first housing and the second housing, a side of the first housing facing the second housing is provided with a first sleeve, a side of the second housing facing each first housing is provided with a second sleeve, and the first sleeve and the second sleeve are slidably connected.

According to one aspect of the invention, in order to drive the first shell to move linearly, a second driving mechanism is arranged in the second shell, the mounting device further comprises a screw rod driven by the second driving mechanism to rotate around the axis of the screw rod, and two ends of the screw rod respectively penetrate through the corresponding second sleeve to penetrate into the first sleeve and are in threaded connection with the first sleeve.

For avoiding first sleeve pipe second sleeve pipe relatively to rotate, first sheathed tube tip inserts in the second sleeve pipe, be provided with spacing key on the first sheathed tube tip periphery wall, be formed with the spout to outer sunken on the second sheathed tube internal perisporium, the spout extends along the axial of lead screw, spacing key inserts in the spout.

In order to limit the contraction position of the first sleeve, a limit cover capable of abutting against the first shell is further arranged on the end part of the second sleeve.

According to one aspect of the invention, in order to facilitate manual adjustment of the telescopic position of the first and second sleeves, the first and second sleeves can be locked therebetween by means of a locking nut.

In order to adjust the distance between support arm and the furred ceiling according to the furred ceiling plane for convenience, be provided with the elastic gasket subassembly on the free end of every support arm, every elastic gasket subassembly includes the base of being connected with the free end of corresponding support arm and sets up the elastic gasket who keeps away from corresponding support arm one end at the base, the elastic gasket is cyclic annular, the relative elastic gasket eccentric settings of base, the elastic gasket can rotate around the base.

The first technical solution adopted by the present invention to solve the second technical problem is: the utility model provides an be applied to range hood as above installation device, is including decorating the cover, decorate the cover including the cover body, the cover body includes left side wall and right side wall, its characterized in that: the first shell moves in the left-right direction, and the supporting arms rotate in the front-back direction; the inner sides of the left side wall and the right side wall of the cover body are respectively provided with a flanging matched with each supporting arm, and the flanging is formed by extending a certain distance from the left side wall or the right side wall of the cover body to the interior of the cover body.

The second technical solution adopted by the present invention to solve the second technical problem is: the utility model provides an be applied to range hood as above installation device, is including decorating the cover, decorate the cover including the cover body, the cover body includes left side wall and right side wall, its characterized in that: the first shell moves in the left-right direction, and the supporting arms rotate in the front-back direction; the inner sides of the left side wall and the right side wall of the cover body are respectively provided with a flanging matched with each supporting arm, the flanging is formed by extending a certain distance from the left side wall or the right side wall of the cover body to the inside of the cover body, and a notch for the supporting component to cross is formed on the flanging.

Compared with the prior art, the invention has the advantages that: the mounting device is separated from the decorative cover and is independently arranged, the supporting arm which can move linearly and rotate is used for supporting and lifting the decorative cover to complete mounting of the decorative cover, the decorative cover can adapt to split type and integrated type decorative covers, the universality is wider, the decorative cover can be conveniently and quickly mounted and dismounted, the mounting is simple and reliable, automatic lifting adjustment of the decorative cover can be realized, and the seamless connection between the decorative cover and a suspended ceiling can be realized; in addition, the mounting device has no part exposed outside the range hood body or the decoration cover, so that the appearance of the whole range hood is attractive.

Drawings

Fig. 1 is a schematic view (hiding an air outlet cover) before installation of a decorative cover of a first embodiment of the range hood of the present invention;

FIG. 2 is a sectional view of the range hood according to the first embodiment of the present invention showing the state before the decoration cover and the installation base are installed;

fig. 3 is a first step schematic view of the decoration cover and the installation base of the range hood according to the first embodiment of the present invention in an initial installation state;

fig. 4 is a schematic view of a second step of the initial installation state of the decoration cover and the installation base of the range hood according to the first embodiment of the invention (hiding the air outlet cover);

FIG. 5 is a second step front view of the decoration cover and the installation base of the range hood according to the first embodiment of the present invention in an initial installation state;

FIG. 6 is a second sectional view of the decoration cover and the installation base of the range hood according to the first embodiment of the present invention in the initial installation state;

fig. 7 is a schematic view of the state of the installation of the decoration cover and the installation base of the range hood according to the first embodiment of the present invention (hidden air outlet cover);

FIG. 8 is a front view of the range hood in the state of installation of the decoration cover and the installation base according to the first embodiment of the present invention;

fig. 9 is a first step sectional view (hiding the air outlet cover) of the range hood according to the first embodiment of the present invention after the installation of the decoration cover and the installation base;

fig. 10 is a schematic view of a second step of completing the installation of the decoration cover and the installation base of the range hood according to the first embodiment of the present invention (hiding the air outlet cover);

FIG. 11 is a second step front view of the range hood according to the first embodiment of the present invention after the installation of the decoration cover and the installation base;

fig. 12 is a schematic view of a fixing device of a range hood according to a first embodiment of the present invention;

fig. 13 is a partial schematic view of a fixing device of a range hood according to a first embodiment of the present invention;

fig. 14 is an exploded view of the fixing device of the range hood according to the first embodiment of the present invention.

Fig. 15 is a schematic view of a fixing device of a range hood according to a second embodiment of the present invention;

fig. 16 is a schematic view of an elastic washer assembly of a fixing device of a second embodiment of the range hood of the present invention;

fig. 17 is a schematic view of a decorative cover of a second embodiment of the range hood of the present invention;

FIG. 18 is a front sectional view of the second embodiment of the range hood of the present invention;

fig. 19 is a first sectional view of the range hood according to the second embodiment of the present invention in the initial state of the installation of the decoration cover and the installation base;

fig. 20 is a second sectional view of the decoration cover and the installation base of the second embodiment of the range hood of the present invention in the initial installation state;

fig. 21 is a first step sectional view of the second embodiment of the range hood of the present invention after the decorative cover and the mounting base are mounted;

fig. 22 is a schematic view of a second step of completing the installation of the decoration cover and the installation base of the range hood according to the second embodiment of the present invention (hiding the air outlet cover);

fig. 23 is a second sectional view of the second step of the range hood according to the second embodiment of the present invention after the decorative cover and the mounting base are mounted.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1, 2 and 4, a range hood includes a range hood body 1, a decoration cover 2 and a mounting device 3 for the decoration cover, wherein the decoration cover 2 is disposed on the upper portion of the range hood body 1 and can be longitudinally pulled relative to the range hood body 1. The decorative cover 2 includes a cover body 21 with an open rear side, the cover body 21 includes a front side wall 211, a left side wall 212 and a right side wall 213, so that the cross section of the cover body 21 is substantially U-shaped, the tops of the left and right side walls of the cover body 21 are respectively provided with a flange 22, and the flange 22 is formed by extending a certain distance from the top of the left side wall 212 or the right side wall 213 of the cover body 21 to the inside of the cover body 21.

The mounting device 3 is used to mount the trim cover 2 to an external mounting base (wall surface 100) and enables seamless mounting with the ceiling 200.

Referring to fig. 12 to 14, the mounting device 3 includes a first driving mechanism 31, a second driving mechanism 32, a transmission mechanism 33, and a support assembly 34. The first driving mechanisms 31 are provided in two numbers, and are respectively provided on the left and right sides of the second driving mechanism 32. In the present embodiment, the first drive mechanism 31 and the second drive mechanism 32 are both motors, and the output shafts of the first drive mechanism 31 and the second drive mechanism 32 are arranged in parallel. The transmission mechanism 33 includes a screw 331 driven by the second driving mechanism 32 to rotate, and a first sleeve 332 in threaded connection with the screw 331. The screw 331 and the output shaft of the second driving mechanism 32 may be directly connected, or may be connected through a speed reducing mechanism 333, and in this embodiment, the speed reducing mechanism 333 includes gears that are engaged with each other and are respectively disposed on the output shaft of the second driving mechanism 32 and the screw 331. Thus, when the second driving mechanism 32 is driven, the screw 331 is driven to rotate about its axis, so that the first sleeve 332 is telescopically moved in the left-right direction relative to the screw 331.

In order to facilitate the first driving mechanism 31 and the second driving mechanism 32 to be mounted and fixed on the wall surface 100, a first housing 311 is disposed outside the first driving mechanism 31, and a second housing 321 is disposed outside the second driving mechanism 32. The first driving mechanism 31 is fixedly installed in the first housing 311, the first sleeve 332 is disposed on a side of the first housing 311 facing the second driving mechanism 32, and preferably, the first housing 311 and the first sleeve 332 are integrally formed. The second driving mechanism 32 is fixedly installed in the second housing 321, the screw rods 331 penetrate through the second housing 321 and are respectively exposed at one side of the second housing 321 facing each first housing 311, and the screw rods 331 are rotatably connected with the second housing 321. The outer circumference of the portion of the screw 331 exposed out of the second housing 321 is sleeved with two second sleeves 334, and the two second sleeves 334 are respectively matched with the first sleeves 332 on the corresponding sides. Preferably, the second sleeve 334 and the second housing 321 may be integrally formed. The end of the first sleeve 332 distal to the first housing 311 is inserted into the second sleeve 334. A limit key 3321 is disposed on the outer peripheral wall of the end portion of the first sleeve 332 inserted into the second sleeve 334, an outwardly recessed sliding groove 3341 is disposed on the inner peripheral wall of the second sleeve 334, the sliding groove 3341 extends along the axial direction of the screw 331, and the limit key 3321 is inserted into the sliding groove 3341 to slide relatively, so as to prevent the first sleeve 332 from rotating relative to the second sleeve 334.

In order to limit the position of the first sleeve 332 retracting into the second sleeve 334 and control the second driving mechanism 32 to stop operating in time, a limit cover 3342 is further disposed on the end portion of the second sleeve 334 facing the first housing 311, the limit cover 3342 is annular, so that the position of the first sleeve 332 can be limited by abutting against the first housing 311, when the position abuts against the first sleeve, the second driving mechanism 32 is locked, and the second driving mechanism 32 can be stopped after the locked rotation is detected.

The second driving mechanism 32, the lead screw 331 and the speed reducing mechanism 333 constitute a linear driving module to drive the first driving mechanism 31 to move linearly so as to move closer to or away from the second driving mechanism 32. Other linear driving modules in the prior art can also be adopted, such as the matching of a motor, a gear and a rack, the matching of a motor and a worm gear, an electric push rod, an air cylinder and the like.

The first driving mechanism 31 is used for driving the support assembly 34 to rotate. In the present embodiment, each first driving mechanism 31 corresponds to one supporting component 34, and is disposed on a side of the first housing 311 away from the second driving mechanism 32. Each support member 34 includes a first support arm 341 and a second support arm 342, which are driven by the first drive mechanism 31 to rotate in opposite directions. One end of the first supporting arm 341 is directly or indirectly connected to the output shaft of the first driving mechanism 31 through a first pin 3411, and the other end is a free end, and one end of the second supporting arm 342 is rotatably connected to the first housing 311 through a second pin 3421, and the other end is a free end. First pin 3411 is provided with a first gear 3412, second pin 3421 is provided with a second gear 3422, first gear 3412 and second gear 3422 are engaged with each other, so that when first driving mechanism 31 is actuated, first pin 3411 can be driven to rotate around its axis to drive first gear 3412 thereon to rotate and further drive second gear 3422 to rotate, second pin 3421 rotates with second gear 3422 synchronously, and the rotation directions of first pin 3411 and second pin 3421 are opposite, i.e. the rotation directions of first supporting arm 341 and second supporting arm 342 are opposite, so that the free ends of first supporting arm 341 and second supporting arm 342 are relatively close to or far from each other. The first pin 3411 is used as a rotation shaft of the first support arm 341, and the second pin 3421 is used as a rotation shaft of the second support arm 342, which are parallel (including coaxial) with the screw 331.

Referring to fig. 1 and 2, before installation, the installation apparatus 3 is first installed on the ceiling 200 (external installation base), the first and second housings 311 and 321 are fixed to the ceiling 200, respectively, and the first and second support arms 341 and 342 are in a state of extending vertically downward.

Referring to fig. 3, in an initial installation state, the trim cover 2 is gradually lifted upward, referring to fig. 4 to 6, until the trim cover 2 comes into contact with the ceiling 200, at which time the two support members 34 of the installation apparatus 3 are positioned inside the trim cover 2 without contact.

Referring to fig. 7 and 8, during installation, the second driving mechanism 32 is activated to move the left-side first driving mechanism 31 (together with the corresponding first housing 311 and support member 34) to the left and the right-side first driving mechanism 31 (together with the corresponding first housing 311 and support member 34) to the right, as indicated by the arrows in fig. 8, and the two support members 34 move away from each other until the two support arms of the support members move to a position below the corresponding side flanges 22 of the trim cover 2, which is sufficient to ensure that the two support arms can subsequently support the flanges 22.

Referring to fig. 9, in the installation-completed state, the first drive mechanism 31 is activated, the first support arm 341 is rotated forward (clockwise direction), and the second support arm 342 is rotated backward (counterclockwise direction), as indicated by the arrows in fig. 9. Referring to fig. 10 and 11, the first supporting arm 341 and the second supporting arm 342 of each supporting component 34 respectively rotate to abut against the turned-over edge 22, so as to press the decoration cover 2 and the ceiling 200, thereby realizing seamless installation of the decoration cover 2 and the ceiling 200, and simultaneously effectively preventing the decoration cover 2 from falling off.

By making the first driving mechanism 31 (the first housing 311 and the support member 34) possible, that is, two first driving mechanisms 31 can be moved toward or away from each other, thereby accommodating the mounting of the trim cover 2 of different width dimensions. In addition, because the two first driving mechanisms 31 can independently operate, when the plane of the suspended ceiling 200 inclines in the left/right direction of the decoration cover 2, after the two supporting arms on one side are limited, the two supporting arms on the other side can also continue to rotate until the upper and lower limiting positions are reached.

Example two

Referring to fig. 15 to 17, the difference from the first embodiment is that the second driving mechanism 32 is not provided, but only the first driving mechanism 31 is remained, and the lead screw 331 is not provided, the first sleeve 332 can still extend and contract relative to the second sleeve 334, but can extend and contract manually, and is locked by the locking nut 335 after the extension and contraction is completed.

Furthermore, an elastic washer assembly 35 is provided on the free end of each support arm, each elastic washer assembly 35 including a base 351 coupled to the free end of the corresponding support arm, and an elastic washer 352 provided at an end of the base 351 remote from the corresponding support arm, the elastic washer 352 having a ring shape, the base 351 being eccentrically provided with respect to the elastic washer 352. The elastic washer 352 is made of a compressible material, has a large friction force, and is rotatable around the base 351. By providing the resilient gasket assembly 35, the distance between the respective support arm and the ceiling 200 can be adjusted.

The flanging 22 of the decorative cover 2 is provided with a gap 23 for avoiding the supporting arm in the lifting process of the decorative cover 2.

Referring to fig. 18, before installation, the installation device 3 is first installed on the ceiling 200, the first and second housings 311 and 321 are fixed to the ceiling 200, respectively, and the first and second support arms 341 and 342 are in a state of extending vertically downward.

Referring to fig. 19, in the initial state of installation, the lock nut 335 is unscrewed, and the first housing 311 (support member 34) is manually adjusted to move left/right as indicated by the arrow in fig. 19 until the support member 34 moves to a position below the flange 22 of the trim cover 2, which is sufficient to ensure that the subsequent support member 34 can support the flange 22 of the trim cover 2. Referring to fig. 20, the decorative cover 2 is then gradually lifted up until the decorative cover 2 contacts the suspended ceiling 200, and since the flange 22 of the decorative cover 2 is provided with the notch 23, the support assembly 34 can be avoided and interference can not occur when the decorative cover 2 is lifted up to the position of the support assembly 34.

Referring to fig. 21, in the installation-completed state, the first drive mechanism 31 is activated, the first support arm 341 is rotated forward (clockwise direction), and the second support arm 342 is rotated backward (counterclockwise direction), as indicated by the arrows in fig. 21. Referring to fig. 22 and 23, the first supporting arm 341 and the second supporting arm 342 of each supporting component 34 respectively rotate to abut against the turned-over edge 22, so as to press the decoration cover 2 and the ceiling 200, thereby realizing seamless installation of the decoration cover 2 and the ceiling 200, and simultaneously effectively preventing the decoration cover 2 from falling off. In addition, the resilient washer assembly 35 on each support arm, which is adapted to adjust the distance between the top end of the respective support arm and the ceiling 200 by rotating the resilient washer 352, is adapted to the ceiling 200 when the plane of the ceiling 200 is tilted in the front-to-back direction of the trim cover.

The mounting device 3 can adapt to split type and integrated type decorative covers, and has wider universality. The first shell 311 and the second shell 321 are both fixed on the suspended ceiling, so that measurement errors can be avoided, and the installation is convenient. Cover 2 convenient and fast is decorated in the dismouting, and the installation is simple reliable, can realize decorating 2 automatic rising of cover and adjust to can realize decorating cover 2 and furred ceiling 200 seamless connection, the support arm can die decorating 2 spacing blocks of cover, is difficult for droing. After the installation is finished, no exposed parts exist.

Claims (10)

1. The utility model provides a decorate cover installation device which characterized in that: the portable decorative cover comprises a first shell (311), a second shell (321) and a support assembly (34), wherein the second shell (321) can be fixed with an external installation base, the first shell (311) is provided with two first shells (341) which are respectively arranged at two opposite sides of the second shell (321), the two first shells (311) are in sliding connection with the second shell (321) and can move linearly towards or away from each other, the support assembly (34) comprises a first support arm (341) and a second support arm (342) which can move linearly along with the first shell (311) and can rotate relative to the first shell (311), one end of each of the first support arm (341) and the second support arm (342) is respectively in rotating connection with the first shell (311), the other end of each of the first support arm (341) and the second support arm (342) serves as a decorative free end, and the other end of each of the first support arm (341) and the second support arm (342) can respectively rotate close to each other and away from the decorative cover (2) or far away from each other to support the decorative, the rotating shafts of the first supporting arm (341) and the second supporting arm (342) are parallel to the moving direction of the first shell (311).

2. A trim cover mounting arrangement according to claim 1, wherein: the mounting device further comprises a first driving mechanism (31) arranged in the first shell (311), one end of the first supporting arm (341) is directly or indirectly connected with an output shaft of the first driving mechanism (31) through a first pin shaft (3411), so that the first pin shaft (3411) is driven by the first driving mechanism (31) to rotate around the axis of the first driving mechanism, one end of the second supporting arm (342) is rotationally connected with the first shell (311) through a second pin shaft (3421), a first gear (3412) is arranged on the first pin shaft (3411), and a second gear (3422) meshed with the first gear (3412) is arranged on the second pin shaft (3421).

3. A trim cover mounting arrangement according to claim 1 or 2, wherein: a first sleeve (332) is arranged on one side, facing the second shell (321), of the first shell (311), a second sleeve (334) is arranged on one side, facing each first shell (311), of the second shell (321), and the first sleeve (332) is connected with the second sleeve (334) in a sliding mode.

4. A trim cover mounting arrangement according to claim 3, wherein: the second driving mechanism (32) is arranged in the second shell (321), the mounting device further comprises a screw rod (331) which is driven by the second driving mechanism (32) to rotate around the axis of the screw rod, and two ends of the screw rod (331) respectively penetrate through the corresponding second sleeves (334) to penetrate into the first sleeves (332) and are in threaded connection with the first sleeves (332).

5. A trim cover mounting arrangement according to claim 4, wherein: the end of the first sleeve (332) is inserted into the second sleeve (334), a limit key (3321) is arranged on the outer peripheral wall of the end of the first sleeve (332), an outward concave sliding groove (3341) is formed on the inner peripheral wall of the second sleeve (334), the sliding groove (3341) extends along the axial direction of the screw rod (331), and the limit key (3321) is inserted into the sliding groove (3341).

6. A trim cover mounting arrangement according to claim 5, wherein: a stopper cap (3342) that can abut against the first housing (311) is also provided at the end of the second sleeve (334).

7. A trim cover mounting arrangement according to claim 3, wherein: the first sleeve (332) and the second sleeve (334) can be locked by a locking nut (335).

8. A trim cover mounting arrangement according to claim 7, wherein: an elastic washer assembly (35) is arranged on the free end of each supporting arm, each elastic washer assembly (35) comprises a base (351) connected with the free end of the corresponding supporting arm and an elastic washer (352) arranged at one end of the base (351) far away from the corresponding supporting arm, the elastic washer (352) is annular, the base (351) is eccentrically arranged relative to the elastic washer (352), and the elastic washer (352) can rotate around the base (351).

9. A range hood applying the mounting device according to any one of claims 4 to 6, comprising a decorative cover (2), the decorative cover (2) comprising a cover body (21), the cover body (21) comprising a left side wall (212) and a right side wall (213), characterized in that: the first housing (311) moves in the left-right direction, and the support arms rotate in the front-rear direction; the inner sides of the left side wall and the right side wall of the cover body (21) are respectively provided with a flanging (22) matched with each supporting arm, and the flanging (22) is formed by extending a certain distance from the left side wall (212) or the right side wall (213) of the cover body (21) to the inside of the cover body (21).

10. A range hood applying the mounting device of claim 7 or 8, comprising a decorative cover (2), the decorative cover (2) comprising a cover body (21), the cover body (21) comprising a left side wall (212) and a right side wall (213), characterized in that: the first housing (311) moves in the left-right direction, and the support arms rotate in the front-rear direction; the inboard of the left and right sides wall of the cover body (21) is provided with respectively with each support arm complex turn-ups (22), turn-ups (22) are formed to cover body (21) inside certain distance that extends by left side wall (212) or right side wall (213) of the cover body (21), offer breach (23) that supply supporting component (34) to cross on turn-ups (22).

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