CN212457153U - Volute tongue mechanism, air outlet device and cabinet air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners and discloses a volute tongue mechanism, an air outlet device and a cabinet air conditioner. According to the cross-flow fan blade, the volute tongue mechanism is divided into the first volute tongue and the second volute tongue, the first volute tongue is made to form the air outlet, the second volute tongue is used for installing the cross-flow fan blade, and the second volute tongue and the first volute tongue are detachably connected through the buckle structure. When the air outlet device needs to be disassembled and washed, the front panel of the cabinet air conditioner is opened, and then the limitation of the buckle structure is removed, so that the first volute tongue can be disassembled, and the through-flow fan blade and the second volute tongue are exposed. The volute tongue mechanism is easy to disassemble, and provides convenience for a user to disassemble, wash and maintain the air outlet device of the cabinet air conditioner. The air outlet device comprises the volute tongue mechanism, so that the air duct can be conveniently disassembled, and the volute tongue mechanism and the fan can be cleaned and maintained. The cabinet air conditioner comprises the volute tongue mechanism or the air outlet device, so that a user can conveniently disassemble and wash the air outlet device and the volute tongue mechanism.

Description

Volute tongue mechanism, air outlet device and cabinet air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to a volute tongue mechanism, an air outlet device and a cabinet air conditioner.

Background

The volute tongue part of the existing air outlet device of the cabinet air conditioner is generally a whole part or divided into a left volute tongue part and a right volute tongue part. In order to wrap the whole air duct, the volume of the right volute tongue part is large, so that the cross-flow fan blade is difficult to take out when the cross-flow fan blade is disassembled and washed. Therefore, the air outlet device of the prior air conditioner cabinet in the related art is not easy to disassemble, and the cleaning and the maintenance are troublesome.

SUMMERY OF THE UTILITY MODEL

The problem that this application will be improved is that the air-out device of the cabinet air conditioner of current correlation technique is difficult to be dismantled, leads to wasing the comparatively inconvenient problem of maintaining.

In order to solve the problems, the application provides a volute tongue mechanism, an air outlet device and a cabinet air conditioner provided with the air outlet device or the volute tongue mechanism.

In a first aspect, an embodiment of the present application provides a volute tongue mechanism, which is used for installing a cross-flow fan blade of a cabinet air conditioner and forming an air outlet duct, and includes a first volute tongue and a second volute tongue, where the first volute tongue and the second volute tongue are distributed around the circumference of the cross-flow fan blade, the first volute tongue is provided with an air outlet communicated with the air outlet duct, the second volute tongue is used for being rotatably connected with the cross-flow fan blade, and the first volute tongue and the second volute tongue are detachably connected through a buckle structure.

According to the embodiment of the application, the volute tongue mechanism is divided into the first volute tongue and the second volute tongue, the first volute tongue is made to form the air outlet, the second volute tongue is used for installing the through-flow fan blade, and then the second volute tongue and the first volute tongue are detachably connected through the buckle structure. Therefore, the first volute tongue is close to the front side of the cabinet air conditioner compared with the second volute tongue, when the air outlet device needs to be disassembled and washed, after the front panel of the cabinet air conditioner is opened, the limitation of the buckle structure is removed, the first volute tongue can be disassembled, and the cross-flow fan blade and the second volute tongue are exposed. The volute tongue mechanism is easy to disassemble, and provides convenience for a user to disassemble, wash and maintain the air outlet device of the cabinet air conditioner.

In an optional embodiment, the fastening structure includes a plug connector and a fastening component, one of the plug connector and the fastening component is disposed on the first volute tongue, the other is disposed on the second volute tongue, and a clamping groove is disposed on the fastening component. In this embodiment, through elastic deformation for the plug connector supports the draw-in groove of buckle to play the positioning action, such simple structure is stable, the operation of being convenient for. When the connector needs to be detached, external force is applied to enable the connector clip to withdraw from the clamping groove.

In an optional embodiment, the plug connector extends along the axial direction of the cross-flow fan blade, the fastener comprises a matching portion, the matching portion extends along the direction perpendicular to the axial line of the cross-flow fan blade, the clamping groove is formed in the matching portion along the axial direction of the cross-flow fan blade, and the matching portion can generate offset along the axial direction of the cross-flow fan blade under the elastic action. When being applied to cabinet air conditioner, the plug connector is vertical to be established, and the cooperation portion level of buckling piece extends and has the draw-in groove of vertical direction degree of depth. When plug connector and fastener joint cooperation, the cooperation portion can produce vertical skew under the elastic action, finally makes the tip of plug connector support in the draw-in groove of fastener.

Furthermore, the clamping groove can be a through hole which penetrates through the matching part along the axial direction of the through-flow fan blade, or a blind hole or a recess which sinks along the axial direction of the through-flow fan blade.

In an optional embodiment, the fastener further comprises a transition part, one end of the transition part is connected to the end of the first volute tongue or the end of the second volute tongue and extends along the axial direction of the cross-flow fan blade, and the other end of the transition part is connected with the matching part. Under the normal use state, the transition part is vertical extension, and one end is connected at the tip of first snail tongue or second snail tongue, and the other end then is connected with cooperation portion, makes whole buckling piece be "L" shape. The buckling piece in the shape can avoid a certain space (namely the upper part or the lower part of the matching piece) for the plug connector, and the end part of the plug connector is convenient to support into the clamping groove to realize matching.

In an alternative embodiment, the mating portion is provided with a guiding bevel for abutting and sliding against the connector during the snap-fit engagement of the snap structure. Owing to set up the direction inclined plane for when installing first snail tongue and second snail tongue, buckle structure is at the lock in-process, and the plug connector can support and hold on the inclined plane and relative slip, and the cooperation portion takes place elastic deformation under the extrusion of plug connector, thereby produces the skew, makes the plug connector finally support in the draw-in groove, accomplishes the lock. The guide inclined plane is arranged, so that the whole buckling process is smoother, and the buckling can be completed without manually pulling the matching part by a user.

In an optional embodiment, the first volute tongue comprises a side plate and two end plates, the side plate forms the air outlet, and the two end plates are arranged at two ends of the side plate at intervals in the axial direction of the cross-flow fan blade; the second volute tongue comprises a connecting portion and two fixing seats, the two fixing seats are respectively used for being rotatably connected with two ends of the through-flow fan blade, and the two connecting portions are in one-to-one correspondence with the two end plates and are respectively connected through a buckle structure. The side plate of the first volute tongue is used for forming a part of the air outlet duct, and the two end plates can be used for arranging the air guide mechanism. Because the end plate sets up the both ends at first snail tongue, and two fixing bases set up in the both ends of second snail tongue, consequently are connected end plate and the fixing base that corresponds through buckle structure, make first snail tongue and second snail tongue from upper and lower both ends relatively fixed, can guarantee the relative stability of the two betterly.

In an optional embodiment, two fasteners are respectively disposed on the two end plates, and plug connectors corresponding to the fasteners are respectively disposed on the two fixing bases. Specifically, two buckling pieces are arranged on each end plate respectively, two plug connectors are arranged on each fixing seat respectively, the connection of the first volute tongue and the second volute tongue is achieved through four buckles, and the stability of the whole volute tongue mechanism can be guaranteed.

In an optional embodiment, the volute tongue mechanism further includes a limiting structure, the limiting structure includes a first limiting member disposed on the first volute tongue and a second limiting member disposed on the second volute tongue, and when the first volute tongue and the second volute tongue are connected by the buckle structure, the first limiting member and the second limiting member are abutted to each other in the axial direction of the cross-flow fan blade. Because the first volute tongue and the second volute tongue have certain lengths, the first volute tongue and the second volute tongue can be aligned conveniently, and the first volute tongue and the second volute tongue can be axially limited. Specifically, the first limiting member and the second limiting member may be respectively disposed on the side plate of the first volute tongue and the connecting portion of the second volute tongue, and respectively located at inner sides of the side plate and the connecting portion.

In a second aspect, an embodiment of the present application provides an air outlet device, which includes a cross-flow fan blade, a driving element for driving the cross-flow fan blade to rotate, an air guide mechanism, and a volute tongue mechanism in any one of the foregoing embodiments, wherein two ends of the cross-flow fan blade are rotatably connected to the second volute tongue, and the air guide mechanism is disposed on the first volute tongue and is used for guiding outlet air of an air outlet. The air outlet device comprises the volute tongue mechanism provided by the first aspect of the application, so that the air duct can be conveniently disassembled, and the volute tongue mechanism and the fan can be cleaned and maintained.

In a third aspect, an embodiment of the present application provides a cabinet air conditioner, including the volute tongue mechanism of any one of the foregoing embodiments, or including the air outlet device of the foregoing embodiments. The cabinet air conditioner provided by the embodiment of the application can be convenient for a user to unpick and wash the air outlet device and the volute tongue mechanism.

Drawings

Fig. 1 is an exploded view of an air outlet device according to an embodiment of the present disclosure;

fig. 2 is an assembly view of a first volute tongue and an air guiding mechanism according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of the second volute tongue, a cross-flow fan blade, and a driving member according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion IV of FIG. 1;

FIG. 5 is an enlarged view of portion V of FIG. 1;

FIG. 6 is a schematic view of one side of an upper end plate of a first volute tongue according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a side of an upper mounting bracket of a second volute tongue according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of the assembly of a volute tongue mechanism according to an embodiment of the present disclosure;

fig. 9 is a schematic view of part IX in fig. 8.

Description of reference numerals: 010-an air outlet device; 100-a volute tongue mechanism; 110-a first volute tongue; 111-edge panels; 112-upper end plate; 113-a lower end plate; 120-a second volute tongue; 121-a connecting part; 122-upper fixing base; 123-motor frame; 124-lower fixed seat; 130-fasteners; 132-a transition; 134-a mating portion; 136-a card slot; 137-a guide slope; 140-a plug-in unit; 150-a limiting structure; 152-a first stop; 154-a second stop; 200-cross-flow fan blades; 300-a driver; 400-an air guide mechanism; 410-wind guiding blades; 420-wind guide motor; 430-protective screening.

Detailed Description

The air duct device of the prior cabinet air conditioner comprises a volute tongue mechanism, a through-flow fan blade, an air guide blade and the like, wherein the through-flow fan blade is arranged in the volute tongue mechanism, and the volute tongue mechanism is fixed on the inner side of a shell of the cabinet air conditioner. The volute tongue mechanism is generally a whole part or divided into a left volute tongue part and a right volute tongue part. In order to wrap the whole air duct, the volume of the right volute tongue part is large, so that the cross-flow fan blade is difficult to take out when the cross-flow fan blade is disassembled and washed. When part of the air conditioner cabinet internal units are designed to be quickly disassembled, the whole air duct is selected to be fixed on the front panel to be taken out in a rotating mode, and the larger right volute tongue part is easy to interfere. Therefore, the air outlet device of the prior air conditioner cabinet in the related art is not easy to disassemble, and the cleaning and the maintenance are troublesome.

In order to solve the above problem, the embodiment of the application provides a volute tongue mechanism, an air outlet device and a cabinet air conditioner, the volute tongue mechanism is split into a front part and a rear part, and the front part and the rear part are connected by using a buckle structure, so that the volute tongue mechanism is more convenient to disassemble, and cleaning and maintenance are convenient for an air duct and an internal through-flow fan blade. In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below.

Fig. 1 is an exploded view of the air outlet device 010 according to an embodiment of the present application. Referring to fig. 1, the air outlet device 010 provided in the embodiment of the present application includes a cross-flow fan blade 200, a driving member 300 for driving the cross-flow fan blade 200 to rotate, an air guiding mechanism 400, and a volute tongue mechanism 100. The cross-flow fan blade 200 is rotatably connected in the volute tongue mechanism 100, and an air outlet duct is formed between the cross-flow fan blade and the volute tongue mechanism 100. The air guide mechanism 400 is connected to the position of the air outlet of the volute tongue mechanism 100 and is used for guiding the air outlet of the volute tongue mechanism 100.

As shown in fig. 1, the volute tongue mechanism 100 includes a first volute tongue 110 and a second volute tongue 120, and the first volute tongue 110 and the second volute tongue 120 are distributed around the circumference of the cross-flow fan blade 200. The first volute tongue 110 is provided with an air outlet communicated with the air outlet duct, and the second volute tongue 120 is used for being rotatably connected with the cross-flow fan blade 200. The first and second volute tongues 110 and 120 are detachably connected by a snap structure. In the present embodiment, since the first volute tongue 110 forms the air outlet, the first volute tongue 110 is closer to the front side of the cabinet air conditioner than the second volute tongue 120, and the second volute tongue 120 is closer to the rear side of the cabinet air conditioner. When the air outlet device 010 needs to be disassembled and washed, the first volute tongue 110 can be disassembled by opening the front panel of the cabinet air conditioner and then removing the limitation of the buckle structure, so that the cross-flow fan blade 200 and the second volute tongue 120 are exposed. Therefore, the volute tongue mechanism 100 is easy to disassemble, and convenience is provided for a user to disassemble, wash and maintain the air outlet device 010 of the cabinet air conditioner.

Fig. 2 is a schematic view illustrating an assembly of the first volute tongue 110 and the wind guiding mechanism 400 according to an embodiment of the present disclosure. As shown in fig. 2, the air guide mechanism 400 is connected to the first volute tongue 110 to guide the outlet air of the outlet. The first volute tongue 110 includes a side plate 111 and two end plates, the side plate 111 forms an air outlet, and the two end plates are disposed at two ends of the side plate 111 at intervals in the axial direction of the cross-flow fan blade 200. In the cabinet air conditioner of the present embodiment, the side plate 111 is vertically set up in actual use, and two end plates are located at the upper and lower ends of the side plate 111, namely, an upper end plate 112 and a lower end plate 113. In this embodiment, the wind guiding mechanism 400 includes a wind guiding motor 420 and a wind guiding blade 410, and the wind guiding blades 410 are rotatably disposed at the wind outlet at intervals. The air guide motor 420 is used for driving the air guide blade 410 to rotate so as to adjust the air outlet direction. In the present embodiment, the air guiding motor 420 is disposed on the upper end plate 112. Optionally, the air guiding motor 420 is a stepping motor. In addition, a protective screen 430 is further disposed on the inner side of the air guiding mechanism 400 to prevent foreign matters outside the foreign matters from falling into the air outlet duct through the air outlet.

Fig. 3 is a schematic view illustrating the second volute tongue 120, the cross-flow fan blade 200 and the driving member 300 according to an embodiment of the present disclosure. Referring to fig. 3, the second volute tongue 120 includes a connecting portion 121 and two fixing bases, and the two fixing bases are respectively disposed at two ends of the connecting portion 121. In actual use, the connecting portion 121 is vertically disposed, and the two fixing bases are respectively disposed at the upper and lower ends of the connecting portion 121, namely, the upper fixing base 122 and the lower fixing base 124. The upper fixing seat 122 and the lower fixing seat 124 are used for being rotatably connected with two ends of the cross-flow fan blade 200. The upper fixing seat 122 is further provided with a motor frame 123 for installing a driving member 300, and the driving member 300 is in transmission connection with the cross-flow fan blade 200 to drive the cross-flow fan blade to rotate. The drive member 300 may be a motor. In the present embodiment, the upper fixing seat 122 of the second volute tongue 120 is connected to the upper end plate 112 of the first volute tongue 110 through two fastening structures; the lower fixing seat 124 of the second volute tongue 120 is connected with the lower end plate 113 of the first volute tongue 110 through two snap structures.

In the present embodiment, the side plate 111 of the first volute tongue 110 is used to form a part of the air outlet duct, and the two end plates can be used to provide the air guiding mechanism 400. Because the end plates are arranged at two ends of the first volute tongue 110 and the two fixing seats are arranged at two ends of the second volute tongue 120, the end plates and the corresponding fixing seats are connected through the buckle structures, so that the first volute tongue 110 and the second volute tongue 120 are relatively fixed from the upper end and the lower end, and the relative stability of the first volute tongue 110 and the second volute tongue 120 can be better ensured. Of course, in other embodiments of the present application, the air guiding motor 420 may be disposed on the lower end plate 113, and the driving member 300 may also be disposed on the lower fixing base 124; the buckle structure can also be arranged at other parts except the end plate and the fixed seat; the number of the buckle structures can be adjusted according to the requirement.

FIG. 4 is an enlarged view of a portion IV of FIG. 1; FIG. 5 is an enlarged view of portion V of FIG. 1; FIG. 6 is a schematic view of one side of the upper end plate 112 of the first volute tongue 110 according to an embodiment of the present disclosure; fig. 7 is a schematic view of one side of the upper fixing seat 122 of the second volute tongue 120 according to an embodiment of the present disclosure. Referring to fig. 4 to 7, in the present embodiment, the fastening structure includes a plug 140 and a fastening element 130, one of the plug 140 and the fastening element 130 is disposed on the first volute tongue 110, and the other is disposed on the second volute tongue 120. In the embodiment, the fastener 130 is disposed on the end plate of the first tongue 110, and the plug 140 is disposed on the fixing seat of the second tongue 120.

As shown in fig. 4 and 5, the fastening member 130 is provided with a locking groove 136, and when the first volute tongue 110 and the second volute tongue 120 are mutually fastened along the radial direction of the cross-flow fan blade 200, at least one of the fastening member 130 and the plug-in unit 140 can elastically deform and make the plug-in unit 140 abut into the locking groove 136 of the fastening member 130. Specifically, in the present embodiment, the fastener 130 can elastically deform. In this embodiment, the plug 140 is pushed into the engaging groove 136 of the fastening element 130 through elastic deformation to perform a positioning function, so that the structure is simple and stable, and is convenient to operate. When the connector 140 needs to be detached, an external force is applied to withdraw the connector 140 from the slot 136.

In this embodiment, the fastening member 130 includes a transition portion 132 and a fitting portion 134, one end of the transition portion 132 is connected to the end plate and extends along the axial direction of the cross-flow fan blade 200, and the other end is connected to the fitting portion 134. The matching part 134 extends along the direction perpendicular to the axial line of the cross-flow fan blade 200 (i.e. the horizontal direction when in use), the clamping groove 136 is arranged on the matching part 134 along the axial direction of the cross-flow fan blade 200, and the matching part 134 can generate offset along the axial direction of the cross-flow fan blade 200 under the elastic action. Under normal use conditions, the transition portion 132 extends vertically and the mating portion 134 extends horizontally, so that the entire fastener 130 is "L" (or inverted "L") shaped. The shape of the fastener 130 can avoid a certain space (i.e. above or below the mating member) for the connector 140, so that the end of the connector 140 can be pushed into the slot 136 to realize the mating. Further, the locking groove 136 is a through hole penetrating through the matching portion 134 along the axial direction of the cross-flow fan blade 200 in this embodiment, and may be a blind hole or a recess sinking along the axial direction of the cross-flow fan blade 200 in other embodiments. Alternatively, fasteners 130 may be made of a resilient plastic material and may be integrally formed with the header.

In an alternative embodiment, the mating portion 134 is provided with a guiding slope 137, the guiding slope 137 is used for abutting against the plug 140 and sliding relative to the plug 140 during the snap-fit structure buckling process. Due to the arrangement of the guiding inclined plane 137, when the first worm tongue 110 and the second worm tongue 120 are installed, in the buckling process of the buckling structure, the plug connector 140 can be abutted on the inclined plane and relatively slide, the matching portion 134 elastically deforms under the extrusion action of the plug connector 140, so that offset is generated, and the plug connector 140 finally abuts into the clamping groove 136 to complete buckling. The inclined guide surface 137 makes the whole fastening process smoother, and the fastening can be completed without manually pulling the fitting portion 134 by a user.

The plug 140 extends along the axial direction of the cross-flow fan blade 200 and protrudes from the surface of the fixing base, as shown in fig. 5, and is disposed on the surface of the upper fixing base 122 in an upward protruding manner. The side of the end of the plug 140 facing the first worm gear 110 may also be provided with a guide surface to facilitate the snap-fit structure.

In an alternative embodiment, two fasteners 130 are respectively disposed on the two end plates, and two connectors 140 corresponding to the fasteners 130 are respectively disposed on the two fixing bases. Specifically, each end plate is provided with two fasteners 130, each fixing seat is provided with two connectors 140, and the connection between the first volute tongue 110 and the second volute tongue 120 is realized through four fasteners, so that the stability of the whole volute tongue mechanism 100 can be ensured.

FIG. 8 is a schematic view of the assembly of the volute tongue mechanism 100 according to an embodiment of the present disclosure; fig. 9 is a schematic view of part IX in fig. 8. As shown in fig. 8 and 9, in the present embodiment, the volute tongue mechanism 100 further includes a limiting structure 150, the limiting structure 150 includes a first limiting member 152 disposed on the first volute tongue 110 and a second limiting member 154 disposed on the second volute tongue 120, and when the first volute tongue 110 and the second volute tongue 120 are connected through a snap structure, the first limiting member 152 and the second limiting member 154 are abutted against each other in an axial direction of the cross-flow fan blade 200. Specifically, the first limiting member 152 is disposed in the middle of the side plate 111 in the length direction, and the second limiting member 154 is disposed in the middle of the connecting portion 121 in the length direction. The first retaining member 152 and the second retaining member 154 are both located on the inner side of the corresponding volute tongue. As shown in fig. 9, when the first limiting member 152 and the second limiting member 154 are matched, the first limiting member 152 is located above the second limiting member 154. One side of the first limiting member 152 and one side of the second limiting member 154, which are abutted against each other, are both provided with a protrusion and a recess, and when the two are matched, the protrusion of the first limiting portion is abutted into the recess of the second limiting portion, and the protrusion of the second limiting portion is abutted into the recess of the first limiting portion, so that the matching is more tight. In this embodiment, since the first volute tongue 110 and the second volute tongue 120 have a certain length, the positioning structure 150 can facilitate the alignment of the first volute tongue 110 and the second volute tongue 120, and can axially position the first volute tongue 110 and the second volute tongue 120.

The embodiment of the application further provides a cabinet air conditioner, which comprises the volute tongue mechanism 100 or the air outlet device 010 in the embodiment.

In summary, in the embodiment of the application, the volute tongue mechanism is divided into the first volute tongue and the second volute tongue, the first volute tongue forms the air outlet, the second volute tongue is used for installing the cross-flow fan blade, and then the second volute tongue is detachably connected with the first volute tongue through the buckle structure. Therefore, the first volute tongue is close to the front side of the cabinet air conditioner compared with the second volute tongue, when the air outlet device needs to be disassembled and washed, after the front panel of the cabinet air conditioner is opened, the limitation of the buckle structure is removed, the first volute tongue can be disassembled, and the cross-flow fan blade and the second volute tongue are exposed. The volute tongue mechanism is easy to disassemble, and provides convenience for a user to disassemble, wash and maintain the air outlet device of the cabinet air conditioner. The air outlet device comprises the volute tongue mechanism, so that the air duct can be conveniently disassembled, and the volute tongue mechanism and the fan can be cleaned and maintained. The cabinet air conditioner of the embodiment of the application comprises the volute tongue mechanism or the air outlet device of the embodiment, so that a user can conveniently disassemble and wash the air outlet device and the volute tongue mechanism.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present disclosure, and it is intended that the scope of the present disclosure be defined by the appended claims.

Claims (10)

1. The volute tongue mechanism is used for installing a cross-flow fan blade (200) of a cabinet air conditioner and forming an air outlet duct, and is characterized in that the volute tongue mechanism (100) comprises a first volute tongue (110) and a second volute tongue (120), the first volute tongue (110) and the second volute tongue (120) are distributed around the circumference of the cross-flow fan blade (200), an air outlet communicated with the air outlet duct is formed in the first volute tongue (110), the second volute tongue (120) is used for being rotatably connected with the cross-flow fan blade (200), and the first volute tongue (110) and the second volute tongue (120) are detachably connected through a buckle structure.

2. The volute tongue mechanism of claim 1, wherein the fastening structure comprises a plug connector (140) and a fastening member (130), one of the plug connector (140) and the fastening member (130) is disposed on the first volute tongue (110), the other is disposed on the second volute tongue (120), a fastening groove (136) is disposed on the fastening member (130), and when the first volute tongue (110) and the second volute tongue (120) are fastened to each other along a radial direction of the cross-flow fan blade (200), at least one of the fastening member (130) and the plug connector (140) can elastically deform and make the plug connector (140) abut into the fastening groove (136) of the fastening member (130).

3. The volute tongue mechanism of claim 2, wherein the plug connector (140) extends in an axial direction of the cross-flow fan blade (200), the fastener (130) comprises a fitting portion (134), the fitting portion (134) extends in a direction perpendicular to an axis of the cross-flow fan blade (200), the clamping groove (136) is formed in the fitting portion (134) in the axial direction of the cross-flow fan blade (200), and the fitting portion (134) can be deflected in the axial direction of the cross-flow fan blade (200) under the elastic action.

4. The volute tongue mechanism of claim 3, wherein the fastener (130) further comprises a transition portion (132), one end of the transition portion (132) is connected to an end of the first volute tongue (110) or the second volute tongue (120) and extends in an axial direction of the cross-flow fan blade (200), and the other end of the transition portion (132) is connected to the matching portion (134).

5. The mechanism according to claim 3, wherein the engagement portion (134) is provided with a guiding bevel (137), the guiding bevel (137) being adapted to abut the plug (140) and to slide relative to the plug (140) during the snap-fit engagement.

6. The volute tongue mechanism of claim 2, wherein the first volute tongue (110) comprises a side plate (111) and two end plates, the side plate (111) forms the air outlet, and the two end plates are arranged at two ends of the side plate (111) at intervals in the axial direction of the cross-flow fan blade (200); the second volute tongue (120) comprises a connecting part (121) and two fixing seats, the two fixing seats are respectively used for being rotatably connected with two ends of the cross-flow fan blade (200), and the two connecting parts (121) are in one-to-one correspondence with the two end plates and are respectively connected through a buckle structure.

7. The volute tongue mechanism of claim 6, wherein two of the fasteners (130) are disposed on each of the two end plates, and wherein a connector (140) corresponding to the fastener (130) is disposed on each of the two fixing bases.

8. The volute tongue mechanism of claim 1, wherein the volute tongue mechanism (100) further comprises a limiting structure (150), the limiting structure (150) comprises a first limiting member (152) disposed on the first volute tongue (110) and a second limiting member (154) disposed on the second volute tongue (120), and when the first volute tongue (110) and the second volute tongue (120) are connected through a snap structure, the first limiting member (152) and the second limiting member (154) abut against each other in an axial direction of the cross-flow fan blade (200).

9. An air outlet device is characterized by comprising a cross-flow fan blade (200), a driving piece (300) for driving the cross-flow fan blade (200) to rotate, an air guide mechanism (400) and the volute tongue mechanism (100) of any one of claims 1 to 8, wherein two ends of the cross-flow fan blade (200) are rotatably connected to the second volute tongue (120), and the air guide mechanism (400) is arranged on the first volute tongue (110) and used for guiding the outlet air of the air outlet.

10. A cabinet air conditioner, characterized by comprising the volute tongue mechanism (100) of any one of claims 1-8, or comprising the air outlet device (010) of claim 9.

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