Window air conditioner

Abstract

The present invention belongs to the technical field of household appliances, and specifically discloses a window air conditioner, which comprises: a housing having a fresh air inlet connected to an outdoor environment, an operating rod with a handle and a damper respectively arranged at two ends, a pivot limit mechanism arranged between the handle and the damper and comprising a support member and a first limit member, and a pivot limit mechanism comprising a support platform and a second limit member, wherein the support member is inserted into the support platform and is relatively fixed rotatably, the support platform supports the rotation of the operating rod, the operating rod rotates around the support platform between a first working position of opening the fresh air inlet at a first angle and a second working position of closing the fresh air inlet, and the first limit member and the second limit member correspondingly abut against each other when the operating rod rotates to the first working position or the second working position. The window air conditioner of the present invention has the advantages of simple structure, no noise, uneasy damage to parts, reliable closure of the fresh air inlet, and convenient installation and disassembly.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a window air conditioner. Background Art

[0002] At present, window air conditioners require the room to be in a closed state when working, and the indoor and outdoor air cannot circulate each other, so as to ensure that the air conditioner can give full play to its efficient heat exchange performance and make the air in the room circulate to adjust the temperature and dehumidify. However, in the closed circulation state where the indoor and outdoor air are isolated, when the indoor carbon dioxide and various other odors continue to increase, the air will become polluted, and people will feel uncomfortable working and living in such an environment. Therefore, most window air conditioners are equipped with a fresh air inlet, which can be opened and closed to draw fresh air from the outside into the room as needed to achieve the purpose of ventilation. Generally, the damper operating lever is used to open and close the fresh air inlet. The head of the damper operating lever is pinched with fingers, and the tail of the damper operating lever is opened and closed by rotating left and right.

[0003] However, in order to control the rotation angle of the damper operating lever on the existing window air conditioner, it is necessary to set a large component such as a limit column in the overall height of the window air conditioner, which makes the structure more complicated, and the damper operating lever needs to collide with the limit column rigidly to be prevented from further movement, which not only generates loud noise, but also easily causes damage to the damper operating lever, which is not conducive to the reliable opening and closing of the fresh air inlet. In addition, the damper operating lever needs to be fixed with screws, and installation and disassembly are relatively troublesome. Summary of the invention

[0004] Based on this, in view of the prior art, the technical problem to be solved by the present invention is to provide a window air conditioner with a simple structure, no noise, uneasy parts damage, reliable closure of the fresh air inlet, and easy installation and disassembly.

[0005] To achieve the above purpose, the technical solution used in the present invention is as follows:

[0006] The present invention provides a window air conditioner, which comprises: a shell, on which a fresh air inlet connected to an outdoor environment is provided; an operating rod, at both ends of which a handle and a damper are respectively provided, and a pivot limit mechanism is provided between the handle and the damper on the operating rod, and the pivot limit mechanism comprises a support member and a first limit member; a pivot limit mechanism; which comprises a support platform and a second limit member; the support member is inserted into the support platform and is relatively fixed rotatably, the support platform supports the rotation of the operating rod, the operating rod rotates around the support platform between a first working position and a second working position, the angle between the first working position and the second working position is a first angle, when the operating rod rotates to the first working position or the second working position, the first limit member and the second limit member abut against each other, when the operating rod rotates around the support platform along the first direction to the first working position, the damper moves away from the fresh air inlet so as to open the fresh air inlet, and when the operating rod rotates around the support platform along the second direction to the second working position, the damper presses against the fresh air inlet so as to close the fresh air inlet.

[0007] Further optionally, the pivot limiting mechanism also includes a groove portion and a through hole opened in the groove portion, the first limiting member is set as an elastic cantilever located at the through hole, the elastic cantilever includes a fixed end and a free end, the fixed end is connected to the groove portion, and the free end is provided with a protrusion, the protrusion has a first limiting surface, and the elastic cantilever causes the protrusion to move closer to or away from the through hole under the action of the elastic deformation force; the supporting member is provided with a rotating shaft extending along a bottom surface perpendicular to the groove portion and a positioning boss fixedly connected to the rotating shaft; the second limiting member is provided with a guide boss, the guide boss has a second limiting surface, the first limiting surface abuts against the second limiting surface to limit the rotation of the operating rod; the support table is provided with A protrusion with a hollow portion, a through groove is provided on the top shell of the protrusion, the groove portion at least accommodates part of the top of the protrusion therein, the shape of the through groove is adapted to the shape of the positioning boss and allows the positioning boss to pass through, the guide boss and the elastic cantilever are both arranged on the outside of the outer surface of the protrusion relative to the radial direction centered on the rotating shaft; when the operating lever is in a working state, the positioning boss is located in the hollow portion and the movement in the axial direction of the rotating shaft is restricted by the top shell, the rotating shaft is located in the through hole, and when the handle is driven by the driving force, the operating lever, supported by the top shell, revolves around the center line of the rotating shaft and synchronously drives the rotating shaft and the positioning boss to rotate between the first working position and the second working position.

[0008] Further optionally, the protrusion also has a first inclined surface opposite to the first limit surface, and the guide boss also has a second inclined surface opposite to the second limit surface; when the operating rod is in an installed state, the positioning boss is aligned with the through groove and inserted into the hollow portion, and the operating rod is then rotated along the second direction with the rotating shaft as the center until the first inclined surface of the protrusion contacts the second inclined surface of the guide boss, and then the operating rod is further rotated along the second direction, and the first inclined surface causes the elastic cantilever to bounce up in the direction away from the guide boss under the action of the sliding friction force of the second inclined surface, and finally the operating rod is further rotated along the second direction, and the elastic cantilever is reset under the action of the elastic restoring force after the first inclined surface as a whole passes through the second inclined surface, so that the first limit surface and the second limit surface are opposite to each other.

[0009] Further optionally, when the operating lever is in a disassembled state, the operating lever is rotated along the first direction with the rotating shaft as the center until the first limit surface contacts the second limit surface, and then when the operating lever is further rotated along the first direction, the protrusion is lifted away from the guide boss so that the elastic cantilever produces elastic deformation, and the operating lever is further rotated along the first direction until the positioning boss is aligned with the through slot, and the positioning boss is moved away from the through slot.

[0010] Further optionally, the elastic cantilever, the through hole and the guide boss all extend along the same arc line centered on the rotating shaft, the protrusion is provided with a first concave surface between the first limiting surface and the first inclined surface, and the guide boss is provided with a second concave surface between the second limiting surface and the second inclined surface, and when the first limiting surface and the second limiting surface abut against each other, the first concave surface abuts against the second concave surface.

[0011] Further optionally, a pair of ribs are provided at the fixed end of the protrusion, each rib extends in a direction parallel to the extension direction of the elastic cantilever and has a top surface that gradually increases in height in the direction away from the protrusion, and a convex tip portion is provided at the free end of each rib, and the second limiting surface abuts the convex tip portion to prevent further rotation of the operating rod.

[0012] Further optionally, the pivot limiting mechanism also includes a section of arc-shaped protruding plate adjacent to the through hole, the inner surface of the arc-shaped protruding plate slidingly cooperates with the side surface of the positioning boss, and at least part of the inner surface of the groove portion slidingly cooperates with the outer surface of the protrusion.

[0013] Further optionally, the positioning boss includes a pair of straight columns symmetrical with respect to the rotating axis, the through groove includes an axial hole with a hole diameter larger than the rotating axis and a pair of straight grooves symmetrical with respect to the axial hole and larger in size than the pair of straight columns, and a pair of hollow holes correspondingly exposing the pair of straight columns are opened on the groove portion.

[0014] The damper is a flat plate, and a sealing member is arranged on a side of the damper facing away from the handle. When the damper closes the fresh air inlet, the sealing sponge is compressed to cover the fresh air inlet.

[0015] Further optionally, the shell includes a damper bracket and a volute, the support platform and the second limit member are both arranged on the damper bracket, the volute includes a side shell plate, and when the operating rod rotates along the second direction around the support platform until the damper abuts against the side shell plate, the damper closes the fresh air inlet.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The window air conditioner of the present invention adopts a detachable plug-in rotational cooperation between the support member on the operating rod and the support platform, so the installation and disassembly of the operating rod are very convenient. In addition, since the mutual abutment between the first limit member and the second limit member on the operating rod is adopted to reliably limit the working position to which the damper of the operating rod rotates to open or close the fresh air inlet, it has the advantages of simple structure, no noise, no damage to parts and components, and reliable closure of the fresh air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings. However, the exemplary embodiments of the present invention and their description are used to explain the present invention and do not constitute improper limitations on the present invention, wherein:

[0019] Figure 1 A schematic diagram of the top surface direction of the operating rod of the window air conditioner of the present invention;

[0020] Figure 2 A schematic diagram showing the bottom surface direction of the operating rod of the window air conditioner of the present invention;

[0021] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 A partial schematic diagram of a pivot support and limiting mechanism is shown for the window air conditioner of the present invention;

[0023] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle

[0024] Figure 6 and Figure 7 It is a partial schematic diagram of two different positions of the operating lever of the window air conditioner of the present invention when it is in an installed state or a disassembled state;

[0025] Figure 8 A partial front view of the window air conditioner of the present invention showing a state where the first inclined surface and the second inclined surface are in contact;

[0026] Fig. 9It is a partial front view of the window air conditioner of the present invention when the operating lever is installed and the elastic cantilever is in an elastic reset state or the operating lever is in a state of opening the fresh air inlet;

[0027] Fig.10 A partial front view of the window air conditioner of the present invention with the operating lever in a state of closing the fresh air inlet;

[0028] Fig.11 A partial front view of the operating rod of the window air conditioner of the present invention just being installed on the support platform or about to be taken away from the support platform;

[0029] Fig.12 A partial front view of the window air conditioner of the present invention with the fresh air inlet opened;

[0030] Fig.13 A partial front view of the window air conditioner of the present invention in a state where the fresh air inlet is closed;

[0031] Fig.14 A top view of the relevant angles of the operating lever of the window air conditioner of the present invention;

[0032] The reference numerals in the figure are as follows:

[0033] 1-housing; 11-fresh air inlet; 12-damper bracket; 13-volute; 131-side shell plate;

[0034] 2-operating lever; 21-handle; 22-throttle;

[0035] 3-pivot limiting mechanism; 31-groove portion; 311-through hole; 312-hollow hole; 32-elastic cantilever; 321-protrusion; 3211-first limiting surface; 3212-first inclined surface; 3213-first concave surface; 322-protruding rib; 3221-convex tip; 33-rotating shaft; 34-positioning boss; 341-straight column; 35-arc-shaped protruding plate;

[0036] 4-pivot support limiting mechanism; 41-guide boss; 411-second limiting surface; 412-second inclined surface; 413-second concave surface; 42-protrusion; 421-hollow portion; 422-top shell; 4221-through groove; 42211-axial hole; 42212-straight groove. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] refer to Figures 1 to 14As an object of the present invention, an embodiment of the present invention provides a window air conditioner, which includes a shell 1, an operating rod 2 and a pivot limit mechanism 4. The shell 1 is provided with a fresh air inlet 11 connected to the outdoor environment, and a handle 21 and a damper 22 are respectively provided at both ends of the operating rod 2. The operating rod 2 is provided with a pivot limit mechanism 3 between the handle 21 and the damper 22. Preferably, the pivot limit mechanism 3 includes a support member and a first limit member. Preferably, the pivot limit mechanism 3 is obtained by integrally molding the operating rod 2. The pivot limit mechanism 4 includes a support platform and a second limit member. The pivot limit mechanism 4 is arranged on a surface of, for example, a damper bracket 12 (further described below). The support member is inserted into the support platform and is rotatably fixed relative to the support platform. That is to say, under normal working conditions, the support member can rotate relative to the support platform and will not separate from the support platform during the rotation process. The operating rod 2 rotates around the support platform between a first working position and a second working position. The angle between the first working position and the second working position is a first angle. When the operating rod 2 rotates to the first working position or the second working position, the first limit member and the second limit member abut against each other. When the operating rod 2 rotates around the support platform along the first direction to the first working position, the damper 22 moves away from the fresh air inlet 11, thereby opening the fresh air inlet 11. When the operating rod 2 rotates around the support platform along the second direction to the second working position, the damper 22 presses against the fresh air inlet 11, thereby closing the fresh air inlet 11. It should be particularly noted that, according to actual needs, the first limiter and the second limiter can be selected to abut against each other in one of the first working position and the second working position, while the other working position is limited by other components such as the side shell plate of the volute. In addition, the first limiter and the second limiter can be limited by abutting against each other's limiting surfaces and abutting against the limiting surfaces and the convex tip at the two working positions. In the embodiments of the present invention, the first working position is limited by abutting against each other of the first limiter and the second limiter, and the second working position is limited by abutting against each other of the side shell plate of the volute and the damper. To sum up, since the operating rod 2 is rotatably connected with the support platform through the plug-in cooperation of the supporting member, the installation and removal of the operating rod 2 relative to the support platform are simple and quick; the abutment of the first limit member and the second limit member is used to limit the rotation angle of the operating rod 2, so the structure is simple, and since the first limit member is arranged on the operating rod 2 and has a small size, correspondingly, the second limit member is also small in size. Therefore, the pressing contact between the first limit member and the second limit member is not only noise-free, but also the relative force of the two limit members is small, so that the two are not easily damaged, and the fresh air inlet is also ensured to be reliably closed.

[0041] Please refer to further Figure 3 and Figure 5Preferably, the pivot limiting mechanism 3 further comprises a groove portion 31 and a through hole 311 provided on the groove portion 31, the first limiting member is an elastic cantilever 32 located at the through hole 311, more specifically, at least most of the elastic cantilever 32 is located in the through hole 311, the elastic cantilever 32 comprises a fixed end and a free end, the fixed end is connected to the groove portion 31, and a protrusion 321 is provided at the free end, the protrusion 321 has a first limiting surface 3211, and the elastic cantilever 32 makes the protrusion 321 move closer to or away from the through hole 311 under the action of the elastic deformation force, which can also be understood as the protrusion 321 rotating in and out relative to the through hole 311 around the fixed end; the supporting member is set to include The invention comprises a rotating shaft 33 extending along the bottom surface of the groove portion 31 perpendicularly to the bottom surface of the groove portion 31 and a positioning boss 34 fixedly connected to the rotating shaft 33; the second limiting member is provided with a guide boss 41, the guide boss 41 has a second limiting surface 411, the first limiting surface 3211 abuts against the second limiting surface 411 to limit the rotation of the operating rod 2; the support platform is provided with a protrusion 42 with a hollow portion 421, specifically, the protrusion 42 can be set to a hollow cylindrical shape, a through groove 4221 is provided on the top shell 422 of the protrusion 42, the groove portion 31 at least accommodates part of the top of the protrusion 42 therein, and the shape of the through groove 4221 is adapted to the shape of the positioning boss 34 and allows the positioning boss 34 to pass through The guide boss 41 and the elastic cantilever 32 are both arranged on the outside of the outer surface of the protrusion 42 in the radial direction with the rotation axis 33 as the center. In this way, as the operating rod 2 rotates under the drive of the handle 21, the process of the groove rotating around the rotation axis 33 relative to the protrusion 42 will not be interfered by the guide boss 41 and the elastic cantilever 32, and on the motion trajectory of the elastic cantilever 32 rotating synchronously with the operating rod 2, the second limiting surface 411 of the guide boss 41 will abut against the first limiting surface 3211 of the protrusion 321, thereby blocking the further rotation of the protrusion 321, thus preventing the operating rod 2 from rotating beyond the range. It can be known that the angle that meets the opening and closing requirements can be determined according to actual needs. The first angle of rotation of the operating rod 2 around the rotating shaft 33 required for the fresh air inlet 11 is then set to the position where the guide boss 41 needs to be relative to the protrusion 321 when the operating rod 2 is in the first working position or / and the second working position. When the operating rod 2 is in the working state, the second limiting surface 411 of the positioning boss 34 is located in the hollow portion 421 and the movement in the axial direction of the rotating shaft 33 is limited by the top shell 422. The rotating shaft 33 is located in the through hole 311. When the handle 21 is driven by the driving force, the operating rod 2 is supported by the top shell 422 to rotate around the center line of the rotating shaft 33 and synchronously drives the rotating shaft 33 and the positioning boss 34 to rotate between the first working position and the second working position. Please refer to Fig.12 and 13 , Fig.12 It shows that when the operating lever 2 is rotated to the first working position, that is, at the first working angle, the air door 22 opens the fresh air inlet 11. Fig.13It is shown that when the operating lever 2 is rotated to the second working position, that is, at the second working angle, the damper 22 closes the fresh air inlet 11, and during the rotation of the operating lever 2 between the first working angle and the second working angle, the positioning boss 34 is always staggered with the through slot 4221, so that it will not escape from the hollow portion 421 through the through slot 4221. In addition, in this embodiment, if Fig.14 As shown, a section of the operating lever 2 between the pivot limit mechanism 3 and the damper 22 is set as a straight rod, and the acute angle between the surface where the damper 22 is located and the side of the straight rod is 72°, the acute angle between the center line of the handle 21 passing through the center of the shaft 33 and the side of the straight rod is 9°, and the acute angle between the surface where the fresh air inlet 11 is located and the horizontal plane is 18°, that is, = 90°-72°. Therefore, when the control operating lever 2 is rotated to the straight rod in the vertical direction, the damper 22 is just in contact with the fresh air inlet 11 for sealing. In addition, the above-mentioned angles, the orientation of the fresh air inlet 11, the length of the rotating force arm of the elastic cantilever 32, etc. can be set according to actual needs, as long as it meets the concept of the present invention to ensure that the fresh air inlet 11 is opened and closed in the first working position and the second working position respectively.

[0042] Further comparison Fig. 9 , Fig.10 , Fig.12 and Fig.13 For example, when the operating lever 2 is in the working state, when the user needs to open the fresh air inlet 11, the user only needs to rotate the handle 21 on the operating lever 2 to the right or counterclockwise until the first limiting surface 3211 of the protrusion 321 provided on the operating lever 2 contacts the second limiting surface 411 of the guide boss 41 provided on the damper bracket 12 (which will be further described below) (e.g. Fig. 9 , Fig.12 When the user needs to close the fresh air inlet 11, he only needs to rotate the handle 21 on the operating rod 2 to the left or clockwise until the damper 22 provided on the operating rod 2 contacts the side shell plate 131 (described further below) of the volute 13 (as shown in FIG. Fig.10 , Fig.13 As described above, by setting the pivot limit mechanism 4 and the pivot limit mechanism 3 as components with exquisite dimensions and accurately matching each other, it is not easy to generate noise and damage, and the rotation angle of the operating rod 2 can be accurately controlled to ensure high-quality opening and closing of the fresh air inlet 11.

[0043] Please refer to further Figure 3 and Figure 5 Optionally, the protrusion 321 also has a first inclined surface 3212 opposite to the first limiting surface 3211, and the guide boss 41 also has a second inclined surface 412 opposite to the second limiting surface 411. The provision of these two inclined surfaces helps the protrusion 321 to move smoothly relative to the guide boss 41. Figure 6, Figure 7 and Fig.11 When the operating rod 2 is in the installed state, the positioning boss 34 is aligned with the through groove 4221 and inserted into the hollow portion 421, as shown in FIG. Figure 8 As shown, the operating rod 2 is then rotated along the second direction with the rotating shaft 33 as the center until the first inclined surface 3212 of the protrusion 321 contacts the second inclined surface 412 of the guide boss 41, i.e., they slide together face to face, and then the operating rod 2 is further rotated along the second direction, and the first inclined surface 3212 is subjected to the sliding friction force of the second inclined surface 412, so that the elastic cantilever 32 bounces up in the direction away from the guide boss 41, i.e., bounces up, and finally the operating rod 2 is further rotated along the second direction, and the elastic cantilever 32 is reset under the elastic restoring force after the first inclined surface 3212 as a whole passes through the second inclined surface 412, so that the first limiting surface 3211 and the second limiting surface 411 are opposite to each other, so that the second limiting surface 411 can abut against the first limiting surface 3211 during the subsequent rotation of the operating rod 2 to limit the position of the first limiting surface 3211. Further comparison Figure 6 and Figure 7 For example, when the operating lever 2 is in the installed state, when the user installs the operating lever 2, the positioning boss 34 on the operating lever 2 is first aligned with the through groove 4221 of the protrusion 42 provided on the damper bracket 12 and then inserted to the bottom (such as Figure 6 and Figure 7 As shown), the operating rod 2 is rotated clockwise with the rotating shaft 33 as the reference until the first inclined surface 3212 of the elastic cantilever 32 on the operating rod 2 contacts the second inclined surface 412 of the guide boss 41 provided on the damper bracket 12 (as shown in FIG. Figure 8 As shown), the operating rod 2 is rotated clockwise, and the elastic cantilever 32 on the operating rod 2 is bounced upward by the friction force of the relative motion with the second inclined surface 412. When the operating rod 2 is rotated clockwise, the elastic cantilever 32 is separated from the guide boss 41 and then returns to the reset state (as shown). Fig. 9 As shown in the figure, therefore, by arranging the elastic cantilever 32 structure on the operating rod 2, when installing the operating rod 2, the first inclined surface 3212 on the elastic cantilever 32 is guided by the second inclined surface 412 of the guide boss 41 and is inserted into the protrusion 42 through the through groove 4221. After the elastic cantilever 32 is reset, it can be used to limit the rotation angle of the operating rod 2, so that the installation operation method of the operating rod 2 is simple and convenient, and the installation can be completed in one step.

[0044] Preferably, when the operating rod 2 is in the disassembled state, the operating rod 2 is rotated along the first direction with the rotating shaft 33 as the center until the first limiting surface 3211 contacts the second limiting surface 411, and then when the operating rod 2 is further rotated along the first direction, the protrusion 321 is lifted away from the guide boss 41, so that the elastic cantilever 32 is elastically deformed, and the operating rod 2 is further rotated along the first direction until the positioning boss 34 is aligned with the through groove 4221, and the positioning boss 34 is taken away from the through groove 4221. Fig. 9 For example, when the operating rod 2 is in a disassembled state, when the operating rod 2 needs to be disassembled for after-sales maintenance, the handle 21 on the operating rod 2 is first rotated rightward, that is, counterclockwise, until the first limiting surface 3211 of the protrusion 321 provided on the operating rod 2 contacts the second limiting surface 411 of the guide boss 41 provided on the damper bracket 12 (such as Fig. 9 ), then lift the elastic cantilever 323 on the operating rod 2 by about 2 mm with a finger or a small screwdriver to make it bounce upward, so that the first limiting surface 3211 of the protrusion 321 is higher than the second limiting surface 411 of the guide boss 41 as a whole, and then continue to rotate the handle 21 on the operating rod 2 to the right, that is, counterclockwise, until the positioning boss 34 on the operating rod 2 is aligned with the through groove 4221 of the protrusion 42 set on the damper bracket 12, and then take it out upward (as shown in FIG. Figure 6 In this way, by virtue of the elastic deformation characteristics of the elastic cantilever 32 structure, when disassembling the operating rod 2, it is only necessary to move the first limiting surface 3211 away from the second limiting surface 411 by a certain height to release the interference of the second limiting surface 411 with the first limiting surface 3211 and limit the position, and then rotate the protrusion 321 away from the guide boss 41 to achieve the alignment of the positioning boss 34 and the through groove 4221 until it is removed, thereby making the disassembly operation of the operating rod 2 simple and convenient, and the disassembly can be completed easily.

[0045] Please refer to further Figure 3 and Figure 5Preferably, the elastic cantilever 32, the through hole 311 and the guide boss 41 all extend along the same arc line centered on the rotating shaft 33. It should be noted that the overall extended shape of the through hole 311 is similar to the overall extended shape of the elastic cantilever 32 and is larger in size. This ensures that the elastic cantilever 32 can be elastically deformed freely in the through hole 311, and that the elastic cantilever 32 and the guide boss 41 can reliably abut against each other. In addition, it is more preferred that a larger gap is provided at the protrusion 321 of the elastic cantilever 32 in the through hole 311 to facilitate the insertion of fingers or a small screwdriver tool to lift the elastic cantilever 32. The protrusion 321 is provided with a first concave surface 3213 between the first limiting surface 3211 and the first inclined surface 3212, and the guide boss 41 is provided with a second concave surface 413 between the second limiting surface 411 and the second inclined surface 412. When the first limiting surface 3211 and the second limiting surface 411 abut against each other, the first concave surface 3213 abuts against the second concave surface 413. By setting the first concave surface 3213 and the second concave surface 413 abutting against each other in a sliding fit, it not only provides an avoidance space so that the first limiting surface 3211 can move to completely abut against the second limiting surface 411, but also further increases the limiting effect. In addition, it also provides a guiding effect for the protrusion 321 to pass over the guide boss 41 when it bounces upward when installing the operating rod 2 to reduce resistance.

[0046] As a further improvement, in the second direction, the first inclined surface 3212 and the second inclined surface 412 have the same acute inclination angle, which is more conducive to the first inclined surface 3212 and the second inclined surface 412 being closely attached to each other so as to slide relatively smoothly and the first inclined surface 3212 receiving uniform sliding friction.

[0047] Please refer to further Figure 3 and Figure 5The cam 322 is provided with a protruding portion 3221 on the upper end of the support 21 so as to prevent the cam 322 from rotating. It should be particularly noted that, in the present embodiment, the rotation of the operating lever 2 to the second working position is ensured by the abutment between the damper 22 and the side shell plate 131 of the volute 13. Therefore, the two protruding tips 3221 can further improve the accuracy of the rotation to the second working position. In addition, the rotation angle of the operating lever 2 can be limited, that is, the accurate rotation to the correct second working position can be limited, by the abutment between the two protruding tips 3221 and the guide boss 41 alone.

[0048] Please refer to further Figure 3 and Figure 5 Preferably, the pivot limit mechanism 3 also includes a section of arc-shaped protrusion 35 adjacent to the through hole 311, the inner surface of the arc-shaped protrusion 35 is slidably matched with the side surface of the positioning boss 34, and the side surface is an arc-shaped surface of the positioning boss 34 facing away from the protrusion 42, and at least part of the inner surface of the groove portion 31 is slidably matched with the outer surface of the protrusion 42. Therefore, by setting two pairs of slidably matched surfaces, it is ensured that the pivot limit mechanism 3 of the operating lever 2 rotates smoothly and stably relative to the pivot support limit mechanism 4.

[0049] Please refer to further Figure 3 Preferably, the positioning boss 34 includes a pair of straight columns 341 symmetrical with respect to the rotating shaft 33, the through groove 4221 includes an axial hole 42211 with a larger aperture than the rotating shaft 33 and a pair of straight grooves 42212 symmetrical with respect to the axial hole 42211 and larger in size than the pair of straight columns 341, and a pair of hollow holes 312 correspondingly exposing the pair of straight columns 341 are opened on the groove portion 31. In this way, it is not only beneficial for the positioning boss 34 to be integrally formed on the operating rod 2, but also the alignment of the positioning boss 34 and the through groove 4221 can be conveniently observed through the pair of hollow holes 312, thereby improving the convenience of installing and removing the operating rod 2.

[0050] Please refer to further Figure 1 and Fig.13Preferably, the damper 22 is a flat plate, and a sealing member (not shown) is provided on the side of the damper 22 facing away from the handle 21. The sealing member may be a sealing sponge, etc. When the damper 22 closes the fresh air inlet 11, the sealing sponge is compressed to cover the fresh air inlet 11. Therefore, the provision of the sealing sponge can ensure complete sealing between the damper 22 and the fresh air inlet 11.

[0051] Please refer to further Figure 6 Preferably, the shell 1 includes a damper bracket 12 and a volute 13, the volute 13 is made of foam material, the damper bracket 12 can be made of sheet metal, for example, the support platform of the protrusion 42 and the second limit member of the guide boss 41 are formed on the damper bracket 12 by stamping, the volute 13 includes a side shell plate 131, and when the operating rod 2 rotates around the support platform along the second direction until the damper 22 abuts against the side shell plate 131, the damper 22 closes the fresh air inlet 11. In this case, since the side shell plate 131 is in surface contact with the side of the damper 22, the further movement of the damper 22 can be evenly and effectively prevented.

[0052] Unless otherwise specifically stated, the relative arrangement of the parts set forth in these embodiments does not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A window air conditioner, characterized in that: include: A housing having a fresh air inlet connected to the outdoor environment; An operating rod, with a handle and a damper respectively disposed at both ends thereof, a pivot limiting mechanism being disposed between the handle and the damper, the pivot limiting mechanism comprising a supporting member and a first limiting member; A pivoting and limiting mechanism, comprising a supporting platform and a second limiting member; The swivel member is inserted into the support platform and is relatively fixed for rotation, and the swivel member rotates relative to the support platform in a normal working state and will not separate from the support platform during the rotation process, and the support platform supports the rotation of the operating rod, and the operating rod rotates around the support platform between a first working position and a second working position, and an angle between the first working position and the second working position is a first angle. When the operating rod is rotated to the first working position, the first limiting member and the second limiting member abut against each other to limit the rotation angle of the operating rod, and when the operating rod is rotated around the support platform along the first direction to the first working position, the air door moves away from the fresh air inlet to open the fresh air inlet, and when the operating rod is rotated around the support platform along the second direction to the second working position, the air door presses against the fresh air inlet to close the fresh air inlet; The first direction and the second direction are opposite; The pivot limiting mechanism further includes a groove portion and a through hole formed on the groove portion, the first limiting member is configured as an elastic cantilever located at the through hole, the elastic cantilever includes a fixed end and a free end, the fixed end is connected to the groove portion, the free end is provided with a protrusion, the protrusion has a first limiting surface, and the elastic cantilever causes the protrusion to move closer to or away from the through hole under the action of elastic deformation force; The supporting member is provided with a rotating shaft extending perpendicularly to the bottom surface of the groove portion and a positioning boss fixedly connected to the rotating shaft; The second limiting member is provided with a guide boss, the guide boss has a second limiting surface, and the first limiting surface abuts against the second limiting surface to limit the rotation of the operating rod; The support platform is provided with a protrusion having a hollow portion, a through groove is provided on the top shell of the protrusion, the groove portion at least accommodates a portion of the top of the protrusion therein, the shape of the through groove is adapted to the shape of the positioning boss and allows the positioning boss to pass through, the guide boss and the elastic cantilever are both arranged on the outside of the outer surface of the protrusion in the radial direction centered on the rotation axis; When the operating lever is in a working state, the positioning boss is located in the hollow portion and the movement of the rotating shaft in the axial direction is limited by the top shell, and the rotating shaft is located in the through hole. When the handle is driven by a driving force, the operating lever, supported by the top shell, rotates around the center line of the rotating shaft and synchronously drives the rotating shaft and the positioning boss to rotate between the first working position and the second working position; A pair of protruding ribs are provided at the fixed end of the protruding block, each of the protruding ribs extends in a direction parallel to the extension direction of the elastic cantilever and has a top surface that gradually increases in height in a direction away from the protruding block, and a convex tip portion is provided at the free end of each protruding rib; When the operating lever rotates in the second direction to move the protrusion away from the guide boss until it reaches the second working position, the two protruding tips abut against the guide boss, limiting further rotation of the operating lever to ensure that the damper moves accurately to close the fresh air inlet.

2. The window air conditioner according to claim 1, characterized in that: The protrusion also has a first inclined surface opposite to the first limiting surface, and the guide boss also has a second inclined surface opposite to the second limiting surface; When the operating rod is in the installed state, the positioning boss is aligned with the through groove and inserted into the hollow portion, and the operating rod is then rotated along the second direction with the rotating shaft as the center until the first inclined surface of the protrusion contacts the second inclined surface of the guide boss, and then the operating rod is further rotated along the second direction, and the first inclined surface causes the elastic cantilever to bounce up in the direction away from the guide boss under the action of the sliding friction force of the second inclined surface, and finally the operating rod is further rotated along the second direction, and the elastic cantilever is reset under the action of the elastic restoring force after the first inclined surface as a whole passes through the second inclined surface, so that the first limit surface and the second limit surface are opposite to each other.

3. The window air conditioner according to claim 1, characterized in that: When the operating lever is in a disassembled state, the operating lever is rotated along the first direction with the rotating shaft as the center until the first limit surface contacts the second limit surface, and then when the operating lever is further rotated along the first direction, the protrusion is lifted away from the guide boss so that the elastic cantilever produces elastic deformation, and the operating lever is further rotated along the first direction until the positioning boss is aligned with the through slot, and then the positioning boss is moved away from the through slot.

4. The window air conditioner according to claim 2, characterized in that: The elastic cantilever, the through hole and the guide boss all extend along the same arc line centered on the rotating shaft, the protrusion is provided with a first concave surface between the first limiting surface and the first inclined surface, and the guide boss is provided with a second concave surface between the second limiting surface and the second inclined surface, and when the first limiting surface and the second limiting surface abut against each other, the first concave surface abuts against the second concave surface.

5. The window air conditioner according to claim 1, characterized in that: The positioning boss includes a pair of straight columns symmetrical with respect to the rotating shaft, the through groove includes an axial hole with a hole diameter larger than the rotating shaft and a pair of straight grooves symmetrical with respect to the axial hole and larger in size than the pair of straight columns, and a pair of hollow holes correspondingly exposing the pair of straight columns are opened on the groove portion.

6. The window air conditioner according to any one of claims 1 to 5, characterized in that: The damper is a flat plate, and a sealing member is provided on a side of the damper facing away from the handle. When the damper closes the fresh air inlet, the sealing member is compressed and covers the fresh air inlet.

7. The window air conditioner according to any one of claims 1 to 5, characterized in that: The shell includes a damper bracket and a volute, the support platform and the second limit member are both arranged on the damper bracket, the volute includes a side shell plate, and when the operating rod rotates around the support platform along the second direction until the damper abuts against the side shell plate, the damper closes the fresh air inlet.

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