Chassis components and air conditioners

Abstract

The present application provides a chassis assembly and an air conditioner, wherein the chassis assembly includes a chassis and a roller assembly, the chassis has a bottom surface for facing the ground, a support block and a limiting structure are also provided on the chassis, the roller assembly includes a roller and a support rod, the roller is rotatably mounted on the first end of the support rod, the support rod is connected to the chassis and is configured to be rotatable relative to the chassis, and the support rod has an extended position and a folded position. When the support rod is in the extended position, the support rod extends along the direction of gravity and is connected to the limiting structure, the limiting structure is used to limit the support rod to the extended position, and the roller at least partially protrudes relative to the bottom surface; when the support rod is in the folded position, the extension direction of the support rod is set at an angle to the direction of gravity, the support block is supported on the first end, and the roller at least partially protrudes relative to the bottom surface. The chassis assembly provided by the present application can solve the technical problem that it is inconvenient to disassemble and assemble between the outer box and the chassis of the existing window machine.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a chassis assembly and an air conditioner. Background Art

[0002] When assembling existing window units (i.e., window air conditioners), the outer box is usually buckled onto the chassis from above, and then screws are driven in from three sides of the outer box to fix the outer box and the chassis. This installation method easily causes the outer box to twist and deform, making it difficult to fix, and it is necessary to drive screws in the left, right, and back directions, which seriously affects production efficiency and is inconvenient to disassemble and assemble during maintenance. At the same time, window units are generally installed in the wall, and the installation position is a certain height from the ground. When the chassis is removed for maintenance, it needs to be moved up and down, but the chassis carries many parts and is relatively heavy, so it is very laborious and inconvenient to remove. Summary of the invention

[0003] The embodiment of the present application provides a chassis assembly to solve the technical problem that the outer box and the chassis of the existing window machine are inconvenient to disassemble and assemble.

[0004] To achieve the above-mentioned purpose, the chassis assembly proposed in the present application is used for assembly with an outer box, the outer box has an assembly entrance, a switching step is provided at the assembly entrance, the chassis assembly includes a chassis and a roller assembly, the roller assembly includes a roller and a support rod, the roller is rotatably mounted on the first end of the support rod, the support rod is connected to the chassis and is configured to be able to rotate relative to the chassis, and the support rod has an extended position and a folded position. When the roller passes through the switching step, the support rod switches from one of the extended position and the folded position to the other under the resistance of the switching step.

[0005] Optionally, in one embodiment, the chassis has a bottom surface facing the ground, and a support block and a limiting structure are further provided on the chassis; when the support rod is in the extended position, the support rod extends along the direction of gravity and is connected to the limiting structure, the limiting structure is used to limit the support rod to the extended position, and the roller at least partially protrudes relative to the bottom surface; when the support rod is in the folded position, the extension direction of the support rod is set at an angle to the direction of gravity, the support block is supported on the first end, and the roller at least partially protrudes relative to the bottom surface.

[0006] Optionally, in one embodiment, a limiting member is further provided on the chassis, the limiting member is provided with an arc-shaped limiting groove, and the limiting structure is arranged on the side wall of the arc-shaped limiting groove; the support rod has a second end opposite to the first end, and the second end is slidably installed in the limiting groove.

[0007] Optionally, in one embodiment, a limiting hole is provided on the side wall of the arc-shaped limiting groove, and the limiting hole forms the limiting structure; a limiting ball head is provided at the second end, and the outer diameter of the limiting ball head is larger than the hole diameter of the limiting hole, and when the support rod is in the extended position, the limiting ball head is clamped in the limiting hole.

[0008] Optionally, in one embodiment, the chassis assembly further includes a spring, one end of the spring is connected to the chassis, the other end is connected to the support rod, and the spring extends within the rotation plane of the support rod; when the support rod is in the extended position, the spring is in a natural state.

[0009] Optionally, in one embodiment, the arc-shaped limit groove has a first side and a second side opposite to each other in its extension direction, and when the limit ball head moves toward the second side, the support rod moves from the extended position to the folded position; the side wall of the arc-shaped limit groove is also provided with a limit block, and the limit block is located on the side of the limit hole close to the first side, and the limit block is used to limit the movement of the limit ball head toward the first side.

[0010] Optionally, in one embodiment, the bottom surface is provided with a receiving groove, and the support block, the limiting structure and the roller assembly are all arranged in the receiving groove; when the support rod is in the folded position, the roller portion protrudes out of the receiving groove.

[0011] Optionally, in one embodiment, a accommodating box and a lifting device are further provided on the chassis, the accommodating slot is formed in the accommodating box, the lifting device is connected to the accommodating box, and the lifting device is used to drive the accommodating box to perform lifting motion relative to the chassis.

[0012] The present application also proposes an air conditioner, comprising an outer box and a chassis assembly of any one of the above embodiments, wherein the outer box is provided with an installation cavity and an assembly entrance connected to the installation cavity, a switching step is provided at the assembly entrance, and the chassis slides into or out of the installation cavity from the assembly entrance.

[0013] Optionally, in one embodiment, a guide rail is provided in the installation cavity, the guide rail extends along the depth direction of the installation cavity, and the guide rail has an entry and exit end located at the assembly entrance, the entry and exit end has a switching end surface facing away from the installation cavity; a switching groove is also provided on the guide rail near the entry and exit end, and the portion of the guide rail located between the switching groove and the switching end surface forms the switching step.

[0014] Optionally, in one embodiment, the bottom surface is further provided with a convex positioning buckle, and the guide rail is further provided with a concave positioning slot, and the positioning buckle is inserted into the positioning slot.

[0015] Optionally, in one embodiment, the outer box has two side panels spaced apart from each other, each of the side panels is provided with a first magnetic strip, and the first magnetic strip extends along the depth direction of the installation cavity; the chassis also has two opposite side walls, the two side walls are respectively arranged opposite to the two side panels, and each of the side walls is provided with a second magnetic strip, and the second magnetic strip extends along the length direction of the side walls; the first magnetic strip and the second magnetic strip have the same magnetic properties.

[0016] The chassis assembly provided by the present application is provided with a roller assembly on the chassis, so that the chassis can be conveniently assembled into or pulled out of the outer box by sliding. At the same time, the support rod in the roller assembly is connected to the chassis and is configured to be able to rotate relative to the chassis, so that the support rod can be rotated to an extended position and a folded position. And when the support rod is rotated to the extended position, the support rod extends along the direction of gravity and can support the chassis. At this time, the support rod is also limited to the extended position by a limiting structure to ensure that the support rod stably supports the chassis and drives the chassis to move. When the support rod is rotated to the folded position, the extension direction of the support rod is set at an angle with the direction of gravity, and the support block on the chassis is supported on one end of the support rod. Because the first end of the support rod is rotatably installed with a roller, when the support rod is in the folded position, it is equivalent to the roller directly supporting the chassis through the support block, thereby driving the chassis to move. And compared with the extended position, when the support rod is in the folded position, the ground of the chassis will be closer to the ground, that is, the overall height of the chassis will be lower. In addition, the outer box used for assembly with the present application is also preset with a switching step at its assembly entrance. When the roller passes through the switching step, the support rod can automatically switch between the extended position and the folded position under the resistance of the switching step.

[0017] Therefore, it can be understood that when the chassis assembly provided by the present application is assembled to the outer box (the assembly entrance of the outer box is preset with a switching step), the support rod can be in an extended position before the chassis slides into the outer box, which is conducive to the chassis sliding on the ground and sliding into the outer box at a certain height distance from the ground at the installation position. When the chassis is pushed into the outer box, the roller will pass through the switching step at the assembly entrance, and the support rod will also break away from the restriction of the limit structure under the resistance of the switching step and move to the folded position. When the support rod moves to the folded position, the support rod cannot continue to rotate under the resistance of the switching step due to the abutment of the support block, so the roller can cross the switching step and slide into the outer box. And because the support rod is in the folded position when the chassis slides into the outer box, the overall height of the chassis will be reduced, which is conducive to reducing the volume of the outer box and the entire window machine, and avoiding the window machine from being too large.

[0018] When the chassis assembly needs to be removed, the chassis can be directly pulled out of the outer box. When the roller passes the switching step at the assembly entrance, the support rod will switch from the folded position to the extended position under the resistance of the switching step. That is, after the chassis is pulled out of the outer box, the support rod returns to the extended position, which makes it convenient to re-install the chassis, making the assembly between the chassis and the outer box very simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of an outer box in the air conditioner of the present application;

[0021] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 This is a schematic structural diagram of an embodiment of a chassis assembly of the present application;

[0023] Figure 4 This is a schematic diagram of the structure when the support rod in the chassis assembly of the present application is in the extended position;

[0024] Figure 5 This is a schematic diagram of the structure when the support rod in the chassis assembly of the present application is in a folded position;

[0025] Figure 6 A partial structural schematic diagram of an embodiment of an air conditioner of the present application;

[0026] Figure 7 A partial structural schematic diagram of another embodiment of the air conditioner of the present application;

[0027] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0028] Fig. 9 This is a partial structural schematic diagram of another embodiment of the chassis assembly of the present application;

[0029] Fig.10 This is a partial structural diagram of another embodiment of the air conditioner of the present application.

[0030] Description of Figure Numbers:

[0031]

[0032]

[0033] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0035] The embodiment of the present application provides a chassis assembly to solve the problem that the outer box and the chassis of the existing window machine are inconvenient to disassemble and assemble. The following will be described in conjunction with the accompanying drawings.

[0036] In the embodiments of this application, please combine Figures 1 to 6 The chassis assembly 20 is used to be assembled with an outer box 30, and the outer box 30 has an assembly entrance 31, and a switching step 32 is provided at the assembly entrance 31. Figures 3 to 5 As shown, the chassis assembly 20 includes a chassis 21 and a roller assembly 22, the chassis 21 has a bottom surface 211 facing the ground, the chassis 21 is also provided with a support block 212 and a limiting structure 252, the roller assembly 22 includes a roller 23 and a support rod 24, the roller 23 is rotatably mounted on the first end 241 of the support rod 24, the support rod 24 is connected to the chassis 21 and is configured to be rotatable relative to the chassis 21, and the support rod 24 has an extended position and a folded position.

[0037] like Figure 4 and Figure 6 As shown, when the support rod 24 is in the extended position, the support rod 24 extends along the gravity direction and is connected to the limiting structure 252, the limiting structure 252 is used to limit the support rod 24 to the extended position, and the roller 23 at least partially protrudes relative to the bottom surface 211; Figure 5 and Figure 6 As shown, when the support rod 24 is in the folded position, the extension direction of the support rod 24 is set at an angle to the gravity direction, the support block 212 is supported on the first end 241, and the roller 23 at least partially protrudes relative to the bottom surface 211; when the roller 23 passes through the switching step 32, the support rod 24 switches from one of the extended position and the folded position to the other under the resistance of the switching step 32.

[0038] Specifically, Figure 3 As shown, the chassis 21 is mainly used to carry components such as the compressor, evaporator, condenser, motor, and air duct assembly. The chassis 21 and the outer box 30 are assembled to form the outer shell of the window machine, thereby protecting the components carried on the chassis 21. In this embodiment, the chassis 21 has a bottom wall and a side wall 216 arranged on the bottom wall and surrounding the circumference of the bottom wall. The entire chassis 21 is generally a square box structure with an open top, and the bottom wall of the chassis 21 has a bottom surface 211 for facing the ground.

[0039] Please combine Figure 5 The support block 212 provided on the chassis 21 is mainly used to support the first end 241 of the support rod 24 when the support rod 24 of the roller assembly 22 moves to the folded position (because the roller 23 is rotatably mounted on the first end 241 of the support rod 24, it is equivalent to the roller 23 being rotatably mounted on the support block 212 at this time), so that the roller 23 can support the chassis 21 through the support block 212, thereby facilitating the movement of the chassis 21. Therefore, the shape, position, size, etc. of the support block 212 need to be designed in coordination with the roller assembly 22. For example, when a corresponding support groove is provided at one end of the support rod 24, the shape, size, position, etc. of the support block 212 are adapted to the design of the support groove; for another example, when the support block 212 needs to be surrounded by the first end 241 of the support rod 24 and the rotating shaft of the roller 23, the side of the support block 212 facing the ground can be adapted to be designed into a corresponding shape, and then when the support rod 24 is in the folded position, the support block 212 is tightly fitted to the first end 241 of the support rod 24 and the fitting position passes through the rotating shaft of the roller 23 along the direction of gravity.

[0040] As for the limiting structure 252 provided on the chassis 21, please refer to Figure 4, which is mainly used to connect with the support rod 24 and limit the support rod 24 in the extended position when the support rod 24 of the roller assembly 22 moves to the extended position, so the limiting structure 252 is set near the extended position, so that it can connect with the support rod 24 when the support rod 24 rotates to the extended position. As for the specific form of the limiting structure 252, it needs to be able to meet the requirements of "both limiting the support rod 24 in the extended position to prevent the support rod 24 from rotating at will, and allowing the support rod 24 to break away from the restriction when the support rod 24 is subjected to a certain external force", and accordingly, there are multiple options for the specific setting of the limiting structure 252. For example, the limiting structure 252 can be a snap buckle with two elastic clamping arms. When the support rod 24 moves to the extended position, the support rod 24 is snapped into the snap buckle, and then the snap buckle can limit the support rod 24 in the extended position to prevent the support rod 24 from rotating at will; however, when the support rod 24 is subjected to a large external force (in this solution, it is subjected to the resistance of the switching step 32), it can automatically escape from the elastic buckle and start to move to the folded position. For another example, the limiting structure 252 can be a magnetic part, and the support rod 24 is also provided with a magnetic part. Then, when the support rod 24 moves to the extended position, it can be magnetically connected by the limiting structure 252 to prevent it from rotating at will; however, when the support rod 24 is subjected to a certain external force, the magnetic attraction between the support rod 24 and the limiting structure 252 can be overcome, so that the support rod 24 can be switched to the folded position. For another example, the limiting structure 252 can be a clamping hole set on the chassis 21, and a clamping block is set on the end of the support rod 24. When the support rod 24 moves to the extended position, the clamping block is clamped in the clamping hole, thereby preventing the support rod 24 from rotating at will; however, when the support rod 24 is subjected to a certain external force, the clamping block can be disengaged from the clamping hole, thereby allowing the support rod 24 to leave the extended position and switch to the folded position. In specific implementation, the specific form of the limiting structure 252 can be selected according to actual needs.

[0041] In this embodiment, if Figures 3 to 5 As shown, the roller assembly 22 includes a roller 23 and a support rod 24, and the roller 23 is rotatably mounted on the first end 241 of the support rod 24. Specifically, the first end 241 of the support rod 24 can be provided with a connecting shaft, and the roller 23 can include two wheels, and the two wheels can be rotatably mounted on both ends of the connecting shaft. The support rod 24 is connected to the chassis 21 and is configured to be able to rotate relative to the chassis 21. There are at least two implementation methods for the support rod 24 to be connected to the chassis 21 and to be able to rotate relative to the chassis 21. One is that one end of the support rod 24 is directly rotatably connected to the chassis 21, and the other end (i.e., the first end 241) is rotatably mounted with the roller 23; the other is that the support rod 24 is connected between the roller 23 and the chassis 21 as a connecting rod capable of translational movement, and the support rod 24 rotates relative to the chassis 21 when translationally moving. Both of the above methods can realize the rotation of the support rod 24 relative to the chassis 21, thereby realizing the extension and folding of the roller assembly 22.

[0042] Specifically, please combine Figure 4 and Figure 6 When the support rod 24 moves to the extended position, the support rod 24 extends along the gravity direction, the support rod 24 and the first end 241 and the roller 23 are located at the lower end of the support rod 24, and the roller 23 is in contact with the ground. At this time, the roller assembly 22 is in an extended state. Figure 5 and Figure 6 When the support rod 24 moves to the folded position, the extension direction of the support rod 24 is set at an angle to the gravity direction. For details, please refer to Figure 3 , the chassis 21 has a front end 219 and a rear end 220 relative to each other along its length direction, and the front end 219 is provided with a handle 218. When the chassis 21 is pushed into the outer box 30, the rear end 220 of the chassis 21 first enters the outer box 30. Accordingly, when the support rod 24 moves to the folded position, the first end 241 of the support rod 24 extends to the side where the front end 219 of the chassis 21 is located. At this time, the extension direction of the support rod 24 can be 30°, 45°, 60°, 90° (at this time, the support rod 24 extends horizontally), 100°, etc. with the direction of gravity. It is only necessary that the roller 23 is partially protruding relative to the bottom surface 211 of the chassis 21 and can contact the ground, and the roller assembly 22 is in the folded state. It can be understood that compared with the extended position, when the support rod 24 is in the folded position, the bottom surface 211 of the chassis 21 is closer to the bottom surface 2112, and the overall height of the chassis 21 is lower, which is conducive to reducing the overall height of the outer box 30 and the window.

[0043] It should be noted that, in this embodiment, the extension of the support rod 24 in the direction of gravity is based on the state when the chassis 21 is placed on the horizontal ground. If the bottom surface 211 of the chassis 21 is a plane, when the support rod 24 is in the extended position, the support rod 24 extends perpendicular to the bottom surface 211, thereby better supporting the chassis 21. In addition, the roller assembly 22 can be arranged on the bottom surface 211 of the chassis 21, or on the side wall 216 of the chassis 21, and the specific arrangement position can be flexibly selected according to needs.

[0044] In this embodiment, the support rod 24 is switched between the extended position and the folded position by a switching step 32 preset on the outer box 30. Specifically, please refer to Figures 1 to 6The chassis assembly 20 is used to be assembled with the outer box 30. The outer box 30 has an assembly entrance 31. The chassis assembly 20 is loaded into the outer box 30 through the assembly entrance 31, and the outer box 30 is removed from the assembly entrance 31. A switching step 32 is provided at the assembly entrance 31. The switching step 32 is used to generate resistance to the roller 23, so that the roller 23 cannot move forward temporarily (the forward direction may be the direction of sliding into the outer box 30 or the direction of sliding out of the outer box 30). Then, under the pulling force or pushing force of the disassembling and assembling personnel, the support rod 24 rotatably connected to the roller 23 will move relative to the roller 23 along with the chassis 21, so that the support rod 24 can be switched between the extended position and the folded position.

[0045] Therefore, there are also many options for setting the switching step 32, such as Figure 1 As shown, a protrusion is provided at the assembly entrance 31, and the protrusion forms a step. Whether the roller 23 enters the outer box 30 or slides out of the outer box 30, the roller 23 will be blocked by the protrusion when it abuts against the protrusion and temporarily cannot move forward; for another example, a groove is provided at the assembly entrance 31. When the roller 23 slides into the groove, the side wall 216 of the groove can block the roller 23, so that the roller 23 cannot move forward temporarily. Therefore, the groove is also a form of switching step 32; for another example, the window machine is generally installed on the wall, and there is a certain height gap between the installation position and the ground. At this time, the wall between the ground and the window machine installation position can also be used as a switching step 32 for switching the support rod 24 from the extended position to the folded position. At this time, another switching step 32 is additionally provided to switch the support rod 24 from the folded position back to the extended position. Therefore, the specific setting method of the switching step 32 can be selected according to the actual situation.

[0046] In summary, it can be understood that the chassis assembly 20 provided by the present application is provided with a roller assembly 22 on the chassis 21, and then the chassis 21 can be conveniently assembled into the outer box 30 or pulled out from the outer box 30 by sliding. At the same time, the support rod 24 in the roller assembly 22 is connected to the chassis 21 and is configured to be able to rotate relative to the chassis 21, and then the support rod 24 can be rotated to an extended position and a folded position. And when the support rod 24 is rotated to the extended position, the support rod 24 extends along the direction of gravity and can support the chassis 21. At this time, the support rod 24 is also limited to the extended position by the limiting structure 252, ensuring that the support rod 24 stably supports the chassis 21 and drives the chassis 21 to move. When the support rod 24 rotates to the folded position, the extension direction of the support rod 24 is set at an angle with the direction of gravity, and the support block 212 on the chassis 21 is supported on one end of the support rod 24. Because the first end 241 of the support rod 24 is rotatably mounted with the roller 23, when the support rod 24 is in the folded position, it is equivalent to the roller 23 directly supporting the chassis 21 through the support block 212, thereby driving the chassis 21 to move. And compared with the extended position, when the support rod 24 is in the folded position, the bottom surface 211 of the chassis 21 will be closer to the ground, that is, the overall height of the chassis 21 will be lower. In addition, the outer box 30 used for assembly with the present application is also preset with a switching step 32 at its assembly entrance 31. When the roller 23 passes through the switching step 32, the support rod 24 can automatically switch between the extended position and the folded position under the resistance of the switching step 32.

[0047] When the chassis assembly 20 provided by the present application is assembled to the outer box 30 (the assembly entrance 31 of the outer box 30 is preset with a switching step 32), the support rod 24 can be placed in an extended position before the chassis 21 slides into the outer box 30, which is conducive to the chassis 21 sliding on the ground and sliding into the outer box 30 at a certain height distance from the ground at the installation position. When the chassis 21 is pushed into the outer box 30, the roller 23 will pass through the switching step 32 at the assembly entrance 31, and the support rod 24 will also break away from the restriction of the limiting structure 252 under the resistance of the switching step 32 and move to the folded position. When the support rod 24 moves to the folded position, the support rod 24 cannot continue to rotate under the resistance of the switching step 32 due to the abutment of the support block 212, so the roller 23 can slide into the outer box 30 by crossing the switching step 32 under the pull of the support rod 24. And because the support rod 24 is in a folded position when the chassis 21 slides into the outer box 30, the overall height of the chassis 21 is reduced, which is beneficial to reduce the volume of the outer box 30 and the entire window machine, and avoid the window machine from being too large.

[0048] When the chassis assembly 20 needs to be removed, the chassis 21 can be directly pulled out from the outer box 30, and when the roller 23 passes the switching step 32 at the assembly entrance 31, the support rod 24 will switch from the folded position to the extended position under the resistance of the switching step 32. That is, after the chassis 21 is pulled out of the outer box 30, the support rod 24 returns to the extended position, which makes it convenient to re-install the chassis 21, making the assembly between the chassis 21 and the outer box 30 very simple and convenient, thereby effectively solving the problem of inconvenient disassembly between the outer box 30 and the chassis 21 of the existing window machine.

[0049] Optionally, in one embodiment, as Figure 4 As shown, the chassis 21 is also provided with a limiting member 25, the limiting member 25 is provided with an arc-shaped limiting groove 251, and the limiting structure 252 is provided on the side wall 216 of the arc-shaped limiting groove 251; the support rod 24 has a second end 242 opposite to the first end 241, and the second end 242 is slidably installed in the arc-shaped limiting groove 251. Specifically, in this embodiment, the limiting member 25 can be installed on the chassis 21 by screwing, bonding, clamping or integral molding, and the limiting member 25 is generally a semicircular ring structure, and then the inside of the limiting member 25 is formed with an arc-shaped limiting groove 251, the center of the arc-shaped limiting groove 251 is located on the side where the bottom surface 211 is located, and the arc-shaped limiting groove 251 is bent to the side away from the bottom surface 211. The second end 242 of the support rod 24 is slidably installed in the arc-shaped limiting groove 251, so that the support rod 24 acts as a connecting rod and switches between the extended position and the folded position in a translational manner. At the same time, the limiting structure 252 is arranged on the side wall 216 of the arc-shaped limiting groove 251, so that the support rod 24 can be moved to the extended position to limit the support rod 24 in the extended position. It can be understood that in this embodiment, the support rod 24 is connected to the chassis 21 by the limiting member 25 provided with the arc-shaped limiting groove 251, which can not only realize the rotation of the support rod 24 relative to the chassis 21, but also enable the support rod 24 to be connected to the limiting structure 252 arranged on the side wall 216 of the arc-shaped limiting groove 251 through its end (i.e., the second end 242), that is, the limiting structure 252 is integrated into the connecting component used to connect the support rod 24, which is conducive to simplifying the structure of the chassis assembly 20 and saving space.

[0050] As mentioned above, the limiting structure 252 can be a magnetic part, a spring buckle, a clamping hole, etc. Therefore, when the limiting structure 252 is set on the side wall 216 of the arc-shaped limiting groove 251, the second end 242 of the support rod 24 located in the arc-shaped limiting groove 251 can be provided with a corresponding connection structure, thereby realizing the limiting of the support rod 24 in the extended position. For example, in one embodiment, Figure 4As shown, a limiting hole 252a is provided on the side wall 216 of the arc-shaped limiting groove 251, and the limiting hole 252a forms the limiting structure 252; the second end 242 is provided with a limiting ball head 243, and the outer diameter of the limiting ball head 243 is larger than the aperture of the limiting hole 252a. When the support rod 24 is in the extended position, the limiting ball head 243 is engaged in the limiting hole 252a. In order to ensure that the support rod 24 extends along the gravity direction and is connected to the limiting structure 252 when the support rod 24 is in the extended position, in this embodiment, the limiting hole 252a is provided on the top side wall 216 of the arc-shaped limiting groove 251, and the limiting hole 252a is located in the middle position in the extension direction of the arc-shaped limiting groove 251, so that when the support rod 24 moves to the extended position and extends along the gravity direction, the limiting ball head 243 is just engaged in the limiting hole 252a. It can be understood that in this embodiment, a limiting structure 252 is formed by opening a limiting hole 252a on the side wall 216 of the arc-shaped limiting groove 251, and a limiting ball head 243 is correspondingly provided at the second end 242 of the support rod 24, so that the limiting structure 252 can be simple and easy to obtain, and can stably limit the support rod 24 to the extended position.

[0051] Optionally, in one embodiment, as Figure 4 and Figure 5 As shown, the chassis assembly 20 further includes a spring 26, one end of the spring 26 is connected to the chassis 21, and the other end is connected to the support rod 24, and the spring 26 extends in the rotation plane of the support rod 24; when the support rod 24 is in the extended position, the spring 26 is in a natural state. Specifically, in this embodiment, the arc-shaped limiting groove 251 has a first side 251a and a second side 251b opposite to each other in its extending direction, and when the limiting ball head 243 moves toward the second side 251b, the support rod 24 moves from the extended position to the folded position. The spring 26 can be located on the side where the first side 251a is located, or on the side where the second side 251b is located. The spring 26 is connected between the chassis 21 and the support rod 24, and when the support rod 24 is in the extended position, the spring 26 is in a natural state. Therefore, in the event of unexpected vibration, uneven ground, etc., when the limiting ball head 243 has a tendency to move toward the first side 251a or the second side 251b and to disengage from the limiting hole 252a, the spring 26 will generate a reverse force, thereby ensuring that the limiting ball head 243 is stably stuck in the limiting hole 252a, that is, ensuring that the support rod 24 is stably in the extended position and will not rotate at will, thereby improving the reliability of the chassis assembly 20.

[0052] Optionally, in one embodiment, as Figure 4As shown, the side wall 216 of the arc-shaped limit groove 251 is also provided with a limit block 253, and the limit block 253 is located on the side of the limit hole 252a close to the first side 251a, and the limit block 253 extends to the side where the bottom surface 211 of the chassis 21 is located, so that the limit block 253 can limit the movement of the limit ball head 243 toward the first side 251a, so that the limit ball head 243 cannot pass through the limit hole 252a and continue to move toward the first side 251a of the arc-shaped limit groove 251, that is, the extended position serves as an extreme position of the support rod 24, which prevents the support rod 24 from passing the extended position in the direction away from the folded position, thereby resulting in the inability to support the chassis 21 and affecting the automatic switching.

[0053] Optionally, in one embodiment, as Fig. 9 As shown, the bottom surface 211 is provided with a receiving groove 2131, and the support block 212, the limiting structure 252 and the roller assembly 22 are all arranged in the receiving groove 2131; when the support rod 24 is in the folded position, the roller 23 partially protrudes out of the receiving groove 2131, that is, when the support rod 24 is in the folded position, only part of the roller 23 of the entire roller assembly 22 protrudes from the bottom surface 211 of the chassis 21, so that the overall height of the chassis 21 can be reduced as much as possible on the basis of ensuring that the chassis 21 slides through the roller 23, and then the outer box 30 can be set smaller, that is, the volume of the entire window machine can be set smaller.

[0054] Optionally, in one embodiment, as Fig. 9 As shown, the chassis 21 is also provided with a receiving box 213 and a lifting device 214, the receiving groove 2131 is formed in the receiving box 213, the lifting device 214 is connected to the receiving box 213, and the lifting device 214 is used to drive the receiving box 213 to perform lifting motion relative to the chassis 21. Specifically, when the chassis 21 is completely inserted into the outer box 30, the support rod 24 is in a folded position, and at this time, the roller 23 still partially protrudes from the bottom surface 211 of the chassis 21. In order to prevent the chassis 21 from sliding due to the roller 23 after being installed in place, in this embodiment, the receiving box 213 is provided, and the receiving groove 2131 is formed in the receiving box 213, that is, the support block 212, the limiting structure 252 and the roller assembly 22 are all arranged in the receiving box 213. The receiving box 213 is connected to the lifting device 214, and after the chassis 21 completely enters the outer box 30, the lifting device 214 can be controlled to drive the receiving box 213 to rise, and the receiving box 213 drives the roller 23 to rise, and the chassis 21 descends until the bottom surface 211 of the chassis 21 contacts the bottom plate or the guide rail 34 of the outer box 30. In this way, the roller 23 can be prevented from accidentally driving the chassis 21 to slide out of the outer box 30, and the chassis 21 can be stably installed in the outer box 30.

[0055] Of course, in some other embodiments, a push-type self-locking mechanism may be provided on the side wall 216 of the outer chassis 21 or in the outer box 30. When the chassis 21 is installed in place, the push-type self-locking mechanism automatically locks the chassis 21 to prevent the chassis 21 from sliding freely in the outer box 30. When the chassis 21 needs to be pulled out, the chassis 21 is first pressed into the outer box 30 to unlock the push-type self-locking mechanism, and then the chassis 21 is pulled out. The specific structure of the push-type self-locking mechanism can be realized according to the existing technology, and will not be described in detail here.

[0056] Please combine Figure 1 , Figure 3 and Figure 6 The present application also proposes an air conditioner 10, the air conditioner 10 comprises an outer box 30 and a chassis assembly 20 of any of the above embodiments, the outer box 30 is provided with an installation cavity 33 and an assembly entrance 31 communicating with the installation cavity 33, the assembly entrance 31 is provided with a switching step 32, the relevant introduction of the switching step 32 can be referred to the above, and will not be repeated here, the chassis 21 slides into the installation cavity 33 or slides out of the installation cavity 33 from the assembly entrance 31. Among them, the specific structure of the chassis assembly 20 refers to the above embodiments, and since the present air conditioner 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0057] It should be noted that “at the assembly entrance 31 ” may be exactly on the assembly entrance 31 , or may be a position that is a certain distance away from the assembly entrance 31 to the inside or outside of the outer box 30 .

[0058] Optionally, in one embodiment, as Figure 7 and Figure 8As shown, a guide rail 34 is provided in the installation cavity 33, and the guide rail 34 extends along the depth direction of the installation cavity 33, and the guide rail 34 has an inlet and outlet end 341 located at the assembly entrance 31, and the inlet and outlet end 341 has a switching end face 342 facing away from the installation cavity 33; a switching groove 343 is also provided on the guide rail 34 near the inlet and outlet end 341, and a portion of the guide rail 34 between the switching groove 343 and the switching end face 342 forms the switching step 32. Specifically, in this embodiment, the outer box 30 is roughly a hexahedral structure with front and bottom openings, the front opening forms the assembly entrance 31, and the two sides of the bottom opening are respectively provided with guide rails 34, and the guide rails 34 extend from the assembly entrance 31 to the inside of the outer box 30, and when the chassis 21 is pushed in, the roller 23 rolls on the guide rails 34. The guide rail 34 itself has a certain thickness and installation height, so the inlet and outlet end 341 of the guide rail 34 has a switching end surface 342 that can block the roller 23 and temporarily prevent the roller 23 from moving forward. In addition, a switching groove 343 is provided on the guide rail 34 near the air outlet end, and the portion of the guide rail 34 between the switching groove 343 and the switching end surface 342 forms a switching step 32.

[0059] Specifically, when the chassis 21 is pushed into the outer box 30, the roller 23 will abut against the switching end surface 342. Under the resistance of the switching end surface 342, the roller 23 cannot move forward. At this time, because the chassis 21 is still pushed and moved by the disassembly personnel, the support rod 24 will rotate relative to the roller 23 under the drive of the chassis 21, and then the support rod 24 will break away from the limit of the limit structure 252 and move to the folded position. When the support rod 24 reaches the folded position, because it cannot continue to rotate, the roller 23 will pass over the switching end surface 342 under the pull of the support rod 24, and then continue to roll into the outer box 30.

[0060] When the chassis 21 is pulled out of the outer box 30, the roller 23 will fall into the switching groove 343. Under the resistance of the side of the switching groove 343 (here refers to the side close to the switching end face 342), the roller 23 cannot move forward. At this time, because the chassis 21 is still being pulled and moved by the disassembly and assembly personnel, the support rod 24 will move relative to the roller 23 driven by the chassis 21 until the roller 23 reaches the extended position (i.e., the extreme position), and the roller 23 rolls out of the switching groove 343 and continues to move forward under the pull of the support rod 24.

[0061] It can be understood that the configuration of this embodiment can not only make the structure of the switching step 32 simple and easy to obtain, but also avoid the situation where a large gap is required between the bottom surface 211 of the chassis 21 and the guide rail 34 due to the existence of the switching step 32, and can further reduce the height of the outer box 30, thereby reducing the volume of the window machine.

[0062] Optionally, in one embodiment, as Fig.10 As shown, the bottom surface 211 is also provided with a convex positioning buckle 215, and the guide rail 34 is also provided with a concave positioning slot 344, and the positioning buckle 215 is inserted into the positioning slot 344. Specifically, based on the aforementioned embodiment with the lifting device 214, when the lifting device 214 drives the roller 23 to rise, that is, when the chassis 21 descends, the positioning buckle 215 will be inserted into the positioning slot 344, thereby achieving stable positioning of the chassis 21 in the outer box 30. Alternatively, in order to strengthen the overall structure of the outer box 30, a reinforcing plate 37 is further connected between the two guide rails 34, the reinforcing plate 37 is located at the assembly entrance 31, the positioning slot 344 is provided on the reinforcing plate 37, and the positioning buckle 215 on the chassis 21 is provided corresponding to the positioning slot 344.

[0063] Optionally, in one embodiment, please combine Figure 1 and Figure 3 , the outer box 30 has two side panels 35 spaced opposite to each other, each of which is provided with a first magnetic strip 36, which extends along the depth direction of the installation cavity 33; the chassis 21 also has two opposite side walls 216, which are respectively arranged opposite to the two side panels 35, and each of which is provided with a second magnetic strip 217, which extends along the length direction of the side wall 216; the first magnetic strip 36 and the second magnetic strip 217 have the same magnetic properties. Therefore, it can be understood that when the chassis 21 is pushed into the outer box 30, the first magnetic strip 36 and the second magnetic strip 217 will repel each other, so that the chassis 21 can be prevented from rubbing against the side panels 35 of the outer box 30 due to the deviation of the movement direction during the process of pushing in or pulling out, so that the disassembly and assembly of the chassis 21 on the outer box 30 is smoother, thereby improving the disassembly and assembly efficiency between the chassis 21 and the outer box 30.

[0064] In the above embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0065] The chassis assembly provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A chassis assembly for assembly with an outer box, the outer box having an assembly entrance, the assembly entrance being provided with a switching step, characterized in that: The chassis assembly comprises: chassis; and, A roller assembly, the roller assembly comprising a roller and a support rod, the roller being rotatably mounted on a first end of the support rod, the support rod being connected to the chassis and configured to be rotatable relative to the chassis, the support rod having an extended position and a folded position; When the roller passes through the switching step, the support rod switches from one of the extended position and the folded position to the other under the resistance of the switching step.

2. The chassis assembly according to claim 1, characterized in that The chassis has a bottom surface facing the ground, and a support block and a limiting structure are also provided on the chassis; When the support rod is in the extended position, the support rod extends along the gravity direction and is connected to the limiting structure, the limiting structure is used to limit the support rod to the extended position, and the roller at least partially protrudes relative to the bottom surface; When the support rod is in the folded position, the extension direction of the support rod is arranged at an angle with the gravity direction, the support block is supported on the first end, and the roller at least partially protrudes relative to the bottom surface.

3. The chassis assembly according to claim 2, characterized in that: The chassis is also provided with a limiting member, the limiting member is provided with an arc-shaped limiting groove, and the limiting structure is arranged on the side wall of the arc-shaped limiting groove; the support rod has a second end opposite to the first end, and the second end is slidably installed in the limiting groove.

4. The chassis assembly according to claim 3, characterized in that: A limiting hole is provided on the side wall of the arc-shaped limiting groove, and the limiting hole forms the limiting structure; The second end is provided with a limiting ball head, the outer diameter of the limiting ball head is larger than the hole diameter of the limiting hole, and when the support rod is in the extended position, the limiting ball head is clamped in the limiting hole.

5. The chassis assembly according to claim 4, characterized in that The chassis assembly also includes a spring, one end of which is connected to the chassis, and the other end of which is connected to the support rod, and the spring extends within the rotation plane of the support rod; when the support rod is in the extended position, the spring is in a natural state.

6. The chassis assembly according to claim 5, characterized in that The arc-shaped limiting groove has a first side and a second side opposite to each other in its extending direction, and when the limiting ball head moves toward the second side, the support rod moves from the extended position to the folded position; A limit block is further provided on the side wall of the arc-shaped limit groove. The limit block is located on a side of the limit hole close to the first side. The limit block is used to limit the movement of the limit ball head toward the first side.

7. The chassis assembly according to any one of claims 2 to 5, characterized in that: The bottom surface is provided with a receiving groove, and the support block, the limiting structure and the roller assembly are all arranged in the receiving groove; when the support rod is in the folded position, the roller part protrudes out of the receiving groove.

8. The chassis assembly according to claim 7, characterized in that The chassis is also provided with a receiving box and a lifting device, the receiving slot is formed in the receiving box, the lifting device is connected to the receiving box, and the lifting device is used to drive the receiving box to perform lifting motion relative to the chassis.

9. An air conditioner, characterized in that: include: An outer box, wherein the outer box is provided with an installation cavity and an assembly entrance communicating with the installation cavity, and a switching step is provided at the assembly entrance; as well as, The chassis assembly according to any one of claims 1 to 8, wherein the chassis slides into or out of the mounting cavity from the assembly entrance.

10. The air conditioner according to claim 9, characterized in that: A guide rail is provided in the installation cavity, the guide rail extends along the depth direction of the installation cavity, and the guide rail has an entry and exit end located at the assembly entrance, and the entry and exit end has a switching end surface facing away from the installation cavity; A switching groove is also provided on the guide rail near the entry and exit end, and the portion of the guide rail between the switching groove and the switching end surface forms the switching step.

11. The air conditioner according to claim 10, characterized in that: The chassis has a bottom surface facing the ground, the bottom surface is convexly provided with a positioning buckle, the guide rail is concavely provided with a positioning slot, and the positioning buckle is inserted into the positioning slot.

12. The air conditioner according to any one of claims 9 to 11, characterized in that: The outer box has two side plates that are spaced apart and opposite to each other, each of the side plates is provided with a first magnetic strip, and the first magnetic strip extends along the depth direction of the installation cavity; The chassis also has two opposite side walls, which are respectively arranged opposite to the two side plates, and each of the side walls is provided with a second magnetic strip, which extends along the length direction of the side wall; The first magnetic stripe and the second magnetic stripe have the same magnetic properties.

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