CN220705436U - Locking structure and air conditioner indoor unit - Google Patents

Abstract

The application discloses a locking structure and an air conditioner indoor unit, wherein the locking structure comprises a lock rod with a first clamping part; the lock box is limited with a chute, a lock cylinder is arranged in the chute in a sliding manner, the lock cylinder is provided with an initial position and a locking position, a second clamping part is arranged on the lock cylinder, the second clamping part is matched with the first clamping part, the first clamping part is released when the lock cylinder slides to the initial position, and the first clamping part is locked when the lock cylinder slides to the locking position; the limiting structure is arranged in the chute, is connected with the lock cylinder and is provided with a first limiting wall, a second limiting wall and a third limiting wall which are sequentially connected; the reset structure is arranged in the chute and is connected with the lock cylinder. The utility model provides a through the cooperation of locking lever and lock box, make the dodge gate close the air outlet back locking under limit structure's effect, release the locking of dodge gate under reset structure's effect, reduce the rocking of dodge gate after locking the dodge gate to avoid appearing the deviation and lead to the condition that the air conditioner air outlet did not close completely because of the position of dodge gate.

Description

Locking structure and air conditioner indoor unit

Technical Field

The application relates to the technical field of air conditioners, in particular to a locking structure and an air conditioner indoor unit.

Background

The home air conditioner includes a hanging type air conditioner and a vertical type air conditioner. A movable door is movably arranged at an air outlet of the vertical air conditioner, and the air outlet of the air conditioner is opened and closed through rotation of the movable door. The movable door is closed when the vertical air conditioner is not in operation, so that foreign matters such as dust and insects can be prevented from entering the vertical air conditioner.

In the prior art, a motor is generally adopted for driving the movable door, and the movable door is driven to be opened or closed through the cooperation of a gear and a rack. However, when the movable door is driven to close the air outlet of the air conditioner, because the moment of the motor is smaller, the movable door collides with the air conditioner when the air outlet of the air conditioner is closed, so that the movable door shakes under the action of inertia, the position of the movable door for closing the air outlet is deviated, and the air outlet of the air conditioner is not completely closed.

Disclosure of Invention

The embodiment of the application provides a locking structure and air conditioner indoor unit, aims at solving because the motor moment is less, the dodge gate has the collision with the air conditioner when closing the air conditioner air outlet for the dodge gate appears rocking under inertial action, thereby makes the position of dodge gate appear the deviation and leads to the air conditioner air outlet not to close the problem completely.

In a first aspect, an embodiment of the present application provides a locking structure, including:

the lock rod is provided with a first clamping part;

the lock box is limited with a chute, a lock cylinder is arranged in the chute in a sliding manner, the lock cylinder is provided with an initial position and a locking position, a second clamping part is arranged on the lock cylinder, the second clamping part is matched with the first clamping part, the first clamping part is released when the lock cylinder slides to the initial position, and the first clamping part is locked when the lock cylinder slides to the locking position;

the limiting structure is arranged in the sliding groove, connected with the lock cylinder and provided with a first limiting wall, a second limiting wall and a third limiting wall which are sequentially connected;

and the reset structure is arranged in the sliding groove and is connected with the lock cylinder.

By adopting the technical scheme, the lock rod is arranged on the movable door and the lock box is arranged on the air conditioner, and when the movable door closes the air outlet of the air conditioner, the first clamping part of the lock rod is driven to extend into the sliding groove. The first clamping part props against the lock cylinder to slide from the initial position to the locking position, the lock cylinder slides from the first limiting wall to the second limiting wall, the second clamping part is converted from an open state to a clamping state, and the first clamping part is locked, so that the movable door is locked after the air outlet is closed; and then the lock cylinder slides to the initial position from the locking position through the reset mechanism, so that the lock cylinder reaches the first limiting wall after sliding from the second limiting wall to the third limiting wall, the first clamping part is released, and the locking of the movable door is released. However, the movable door is locked after being closed, so that the problem that the air outlet of the air conditioner is not completely closed due to deviation of the position of the movable door when the air outlet is closed due to the fact that the movable door collides with the air conditioner and shakes under the inertia effect is solved.

In some embodiments, the lock cylinder comprises:

the core body is arranged in the chute in a sliding way, and the second clamping part is arranged on the core body;

the reset structure comprises a reset spring, the reset spring is connected with one end of the core body far away from the second clamping part, one end of the reset spring far away from the core body is connected with the groove wall of the chute, and the reset spring has a natural state and a compression state; when the first clamping part is moved to be abutted with the core body and drives the core body to move from the initial position to the locking position, the return spring is changed from the natural state to the compressed state, and when the core body is moved from the locking position to the initial position, the return spring is restored from the compressed state to the natural state.

In some embodiments, the first clamping portion includes a boss disposed at an end of the lock rod, the second clamping portion includes elastic buckles disposed at two sides of the core, and when the second clamping portion is in a clamping state, the elastic buckles clamp the boss, so as to limit the boss from being separated from the core; when the second clamping part is in an open state, the elastic buckle releases the boss.

In some embodiments, the notch of the chute near the first clamping portion is gradually expanded toward a direction near the lock rod.

In some embodiments, the lock cylinder further comprises:

a rotating plate rotatably connected to one side of the core body,

the limiting lug is connected to one end, far away from the core body, of the rotating plate;

the reset torsion spring is sleeved at a rotating shaft where the rotating plate is rotationally connected with the core body;

in the process that the core body moves from the initial position to the locking position, the reset torsion spring acts on the rotating plate and drives the limiting lug to move to the second limiting wall along the first limiting wall, and in the process that the core body moves from the locking position to the initial position, the reset torsion spring acts on the rotating plate and drives the limiting lug to move to the third limiting wall along the second limiting wall and move to the first limiting wall along the third limiting wall.

In some embodiments, when the return spring and the return torsion spring both recover to the natural state, the elastic buckle is in the open state, and the limiting bump is located at one end of the first limiting wall, which is close to the third limiting wall.

In some embodiments, the limiting structure comprises a limiting block arranged on the wall of the chute, the limiting block is in sliding butt with the limiting bump, the circumferential side wall of the limiting block is a first limiting wall, a second limiting wall and a third limiting wall which are sequentially connected, and the second limiting wall is sunken for the lock cylinder to be clamped.

In some embodiments, when the return spring and the return torsion spring are both in a natural state, one end of the first limiting wall and one end of the second limiting wall, which are connected with each other, extend obliquely in a direction away from the limiting bump.

In a second aspect, the application provides an indoor unit of an air conditioner, including the locking structure of the first aspect, still include the air conditioner main part, set up in the front panel of air conditioner main part front side, set up in the rear panel of air conditioner main part rear side, the air outlet has been seted up on the front panel, the front panel with slide between the air conditioner main part and be provided with the dodge gate, the dodge gate is used for opening or closing the air outlet, the lock box set up in on the dodge gate with on the air conditioner main part either, the locking lever set up in on the dodge gate with on the other of the air conditioner main part either, the dodge gate will when the air outlet was closed, the locking lever with the lock box cooperation will the dodge gate is locked.

In some embodiments, the lock box is disposed on a side of the air conditioner body facing the movable door, and the lock rod is disposed on a side of the movable door facing the lock box.

According to the embodiment of the application, when the first clamping part abuts against the core body to move from the initial position to the locking position, the second clamping part is switched from the open state to the clamping state, so that the limiting boss on the core body moves from the first limiting wall to the second limiting wall, the position of the limiting boss on the second limiting wall is locked, and then the clamping state of the second clamping part is locked, so that the movable door closing the air outlet is locked. When the locking of the movable door is required to be released, the movable door is controlled to continuously slide towards the direction of closing the air outlet. When the limit bump moves from the second limit wall to the third limit wall, the locking of the core body is released. Under reset spring's effect, the in-process that the core moved to initial position from the locked position, second joint portion switches to open the state from the chucking state to release the locked state of spacing boss, and then make second joint portion release first joint portion, until spacing lug removes to first spacing wall from the third spacing wall, accomplishes the reset of core, spacing lug, second joint portion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a locking structure according to an embodiment of the present disclosure when a locking bar is not inserted into a lock box;

FIG. 2 is a schematic cross-sectional view of the locking structure according to the embodiment of the present application after the locking bar is inserted into the lock box;

FIG. 3 is an exploded view of a lock box provided in an embodiment of the present application;

fig. 4 is an exploded schematic view of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 5 is a schematic structural view of the lock lever provided in the embodiment of the present application disposed on the sliding door.

Reference numerals illustrate: 1. a lock lever; 11. a first clamping part; 111. a boss; 2. a lock box; 21. a lock core; 211. a core; 2111. a guide post; 212. a return spring; 213. a rotating plate; 214. a limit bump; 215. a reset torsion spring; 22. a chute; 221. a first slot cavity; 2211. a guide groove; 222. a second slot cavity; 23. a second clamping part; 231. an elastic buckle; 3. a limit structure; 31. a first limiting wall; 32. the second limiting wall; 33. a third limiting wall; 34. a limiting block; 4. an air conditioner main body; 41. a front panel; 411. an air outlet; 42. a rear panel; 43. a movable door.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

The embodiment of the application provides a locking structure and an air conditioner indoor unit. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.

First, referring to fig. 1 and 2 together, the locking structure includes a lock lever 1 and a lock box 2. Wherein the lock lever 1 has a first engagement portion 11. The lock box 2 defines a chute 22. A lock cylinder 21 is arranged in the chute 22. The lock cylinder 21 is slidably disposed in the slide groove 22 and has an initial position and a locking position. The lock cylinder 21 is provided with a second locking portion 23. The second locking portion 23 cooperates with the first locking portion 11, and releases the first locking portion 11 when the key cylinder 21 slides to the initial position, and locks the first locking portion 11 when it slides to the locking position. The limiting structure 3 is disposed in the chute 22, and the limiting structure 3 is connected with the lock core 21 and has a first limiting wall 31, a second limiting wall 32 and a third limiting wall 33 which are sequentially connected. The reset structure is arranged in the chute 22 and is connected with the lock cylinder 21.

The second clamping portion 23 has an open state and a clamped state.

When the lock cylinder 21 is located at the initial position, the second clamping part 23 is in an open state; when the first clamping part 11 moves to be abutted with the lock cylinder 21 and drives the lock cylinder 21 to move from the initial position to the locking position, the lock cylinder 21 slides from the first limiting wall 31 to the second limiting wall 32, the second clamping part 23 is converted to a clamping state, and the first clamping part 11 is locked; when the reset structure acts on the lock cylinder, the lock cylinder 21 moves from the locking position to the initial position, the lock cylinder 21 slides from the second limiting wall 32 to the third limiting wall 33 and then reaches the first limiting wall 31, the second clamping part 23 is restored to the open state, and the first clamping part 11 is released.

Specifically, the chute 22 includes two communicating first and second chambers 221, 222. The first slot cavity 221 communicates with the outside of the lock case 2. The second slot chamber 222 has a slot width in the width direction of the lock case 2 that is larger than that of the first slot chamber 221. The lever portion of the lock lever 1 and the first engaging portion 11 are slidable in the first groove 221. The lock cylinder 21 is slidable within the first slot cavity 221 and the second slot cavity 222. The second clamping portion 23 can slide in the first groove cavity 221. When the lock cylinder 21 is located in the first groove cavity 221 and the second clamping portion 23 is located outside the lock box 2, the second clamping portion 23 is in an open state and the lock cylinder 21 is in an initial position. When the lock cylinder 21 is partially located in the first groove cavity 221 and partially located in the second groove cavity 222 and the second clamping portion 23 is located in the first groove cavity 221, the second clamping portion 23 is in a clamping state, and the lock cylinder 21 is in a locking position. Note that the sliding directions of the lock lever 1, the first clamping portion 11, the second clamping portion 23, and the lock cylinder 21 are the same.

In this embodiment, after the lock lever 1 drives the first clamping portion 11 to extend into the first slot cavity 221, the first clamping portion 11 abuts against the lock cylinder 21. The lock core 21 slides from the initial position to the locking position under the driving of the first clamping portion 11, so that the second clamping portion 23 is converted from the open state to the clamping state, so that the first clamping portion 11 extending into the first groove cavity 221 is clamped, and the first clamping portion 11 is locked in the first groove cavity 221. The lock lever 1 continues to drive the first clamping portion 11 to move towards the first slot cavity 221, and the first clamping portion 11 continues to push the lock cylinder 21 to slide towards the second slot cavity 222, so that the lock cylinder 21 is separated from the locking position, and it should be noted that at this time, the first clamping portion 11 continues to push the lock cylinder 21 towards the second slot cavity 222, so that the second clamping portion 23 clamps the first clamping portion 11 more tightly. Then, the lock cylinder 21 slides from the locking position to the initial position, and the lock cylinder 21 pushes the first clamping portion 11 to slide out of the first groove cavity 221, so that the second clamping portion 23 is switched from the clamping state to the open state, and further the first clamping portion 11 is released, and the locking of the first clamping portion 11 is released.

Specifically, the limiting structure 3 is located at a side of the lock core 21 away from the second clamping portion 23, that is, the limiting structure 3 is fixedly disposed in the second slot cavity 222. When the lock cylinder 21 is positioned at the initial position, the lock cylinder is positioned at the first limiting wall 31; when the lock cylinder 21 is in the locking position, it is located on the second limiting wall 32, and at this time, the second clamping portion 23 clamps and locks the first clamping portion 11. Through the first limiting wall 31, the second limiting wall 32 and the third limiting wall 33 of the limiting structure 3, the lock cylinder 21 is abutted against the limiting structure 3 in the process of sliding into the second groove cavity 222, moves to the second limiting wall 32 along the first limiting wall 31, is locked on the second limiting wall 32, and is positioned at a locking position after being locked on the lock cylinder 21; the lock core 21 is further pushed by the first clamping part 11 to slide towards the second groove cavity 222 and then is separated from the second limiting wall 32, and moves to the third limiting wall 33. On the third limiting wall 33, the lock cylinder 21 abuts against the limiting structure 3 and moves along the third limiting wall 33 to the first limiting wall 31, so that the lock cylinder 21 is retracted from the second slot cavity 222 toward the first slot cavity 221 until the lock cylinder 21 returns to the initial position.

Further, referring to fig. 2 and 3 together, lock cylinder 21 includes a core body 211 and the return structure includes a return spring 212. Wherein the core 211 is slidably disposed in the chute 22. The second clamping portion 23 is disposed on the core 211. The return spring 212 is connected to an end of the core 211 remote from the second engaging portion 23. The end of the return spring 212 remote from the core 211 is connected to the wall of the chute 22. The return spring 212 has a natural state and a compressed state. When the first clamping part 11 moves to be abutted with the core 211 and drives the core 211 to move from the initial position to the locking position, the return spring 212 is converted from the natural state to the compression state; when the core 211 is moved from the lock position to the initial position, the return spring 212 returns from the compressed state to the natural state.

It will be appreciated that the core 211 slides partially within the first slot cavity 221 and partially within the second slot cavity 222. The return spring 212 is located within the second slot cavity 222. During the process of moving the core 211 from the first limiting wall 31 to the second limiting wall 32, the return spring 212 is in a compressed state; during the movement of the core 211 from the second limiting wall 32 to the third limiting wall 33, the return spring 212 is still in a compressed state; during the movement of the core 211 from the third limiting wall 33 to the first limiting wall 31, the return spring 212 is switched from the compressed state to the natural state.

In this embodiment, guide posts 2111 are fixedly connected to the side walls of the core 211. Two opposite cavity walls of the first cavity 221 are provided with guide grooves 2211 for sliding the guide posts 2111. The guide groove 2211 may extend through a sidewall of the lock case 2. The sliding of the core 211 in the first groove chamber 221 and the second groove chamber 222 can be guided by the sliding of the guide post 2111 in the guide groove 2211.

Further, the first engaging portion 11 includes a boss 111 provided at an end of the lock lever 1. The second clamping portion 23 includes elastic buckles 231 disposed on two sides of the core 211. When the second clamping portion 23 is in the clamping state, the elastic buckle 231 clamps the boss 111, and the boss 111 is limited to be separated from the core 211. When the second clamping portion 23 is in the open state, the elastic buckle 231 releases the boss 111.

In the above embodiment, the boss 111 extends into the first slot 221 to abut against the core 211 than the rod portion of the lock rod 1. When the lock cylinder 21 moves to the locking position, the elastic buckle 231 is clamped on two sides of the boss 111 opposite to the core 211, so as to limit the boss 111 to be separated from the core 211. The notch of the first groove cavity 221 is gradually expanded towards the direction close to the lock rod 1, so that the contact area between the cavity wall of the first groove cavity 221 and the elastic buckle 231 is increased, and the damage to the elastic buckle 231 is reduced. The elastic buckle 231 is located outside the first groove cavity 221 when in an open state, and the elastic buckle 231 is in a natural state at this time. In the process that the boss 111 abuts against the core 211 to drive the elastic buckle 231 to slide into the first groove cavity 221, the elastic buckle 231 is abutted against the cavity wall of the first groove cavity 221, so that the elastic buckle 231 is gathered and is in a clamping state and clamped on the boss 111. At this time, the elastic buckle 231 is in a compressed state. In the process that the return spring 212 pushes the core 211 to drive the elastic buckle 231 to slide out of the first groove cavity 221, the elastic buckle 231 gradually returns to the natural state and releases the boss 111.

Further, the lock core 21 further includes a rotation plate 213, a limit bump 214, and a reset torsion spring 215. Wherein the rotation plate 213 is rotatably coupled to one side of the core 211. The limit bump 214 is connected to an end of the rotation plate 213 away from the core 211. The reset torsion spring 215 is sleeved at the rotating shaft where the rotating plate 213 is rotationally connected with the core 211.

During the process of moving the core 211 from the initial position to the locking position, the reset torsion spring 215 acts on the rotating plate 213 and drives the limit bump 214 to move along the first limit wall 31 to the second limit wall 32; in the process of moving the core 211 from the locking position to the initial position, the reset torsion spring 215 acts on the rotating plate 213 and drives the limiting bump 214 to move along the second limiting wall 32 to the third limiting wall 33 and move along the third limiting wall 33 to the first limiting wall 31.

Specifically, the length direction of the rotation plate 213 extends in the sliding direction of the core 211. The guide post 2111 on one side of the core 211 penetrates through the rotating plate 213 and the rotating shaft of the rotating plate 213, the rotating shaft of the rotating plate 213 is rotatably sleeved on the guide post 2111 on one side of the core 211, and the rotating shaft of the rotating plate 213 extends along the direction perpendicular to the sliding direction of the core 211.

The core 211 slides towards the second groove cavity 222 to drive the limiting protruding block 214 to abut against the first limiting wall 31 and slide on the first limiting wall 31, so that the rotating plate 213 rotates clockwise until the limiting protruding block 214 slides to the second limiting wall 32, and after the limiting protruding block 214 slides to the second limiting wall 32, the reset torsion spring 215 drives the rotating plate 213 to rotate anticlockwise, so that the limiting protruding block 214 is locked on the second limiting wall 32, and the limiting protruding block 214 is limited to slide towards the first groove cavity 221, so that the core 211 is located at the locking position. The core 211 continues to slide towards the second slot cavity 222, drives the limiting bump 214 to slide towards the direction away from the first slot cavity 221 until the limiting bump 214 is completely separated from the second limiting wall 32, and then the reset torsion spring 215 drives the rotating plate 213 and the limiting bump 214 to rotate anticlockwise, so that the limiting bump 214 slides from the second limiting wall 32 to the third limiting wall 33, and the core 211 is separated from the locking position. Due to the action of the return spring 212, the core 211 drives the rotating plate 213 and the limiting bump 214 to slide towards the first slot cavity 221, specifically drives the limiting bump 214 to slide on the third limiting wall 33, so that the rotating plate 213 continues to rotate anticlockwise until the limiting bump 214 slides away from the third limiting wall 33, and the return torsion spring 215 drives the rotating plate 213 to rotate clockwise, so as to drive the limiting bump 214 to slide onto the first limiting wall 31, so that the core 211 returns to the initial position.

It should be noted that, referring to fig. 1 and fig. 3 together, when the return spring 212 and the return torsion spring 215 are both restored to the natural state, the elastic buckle 231 is in an open state, and specifically, the elastic buckle 231 is located outside the first slot 221 and is in a natural state. The limiting bump 214 is located at one end of the first limiting wall 31 near the third limiting wall 33. At this time, the rotation plate 213 may be parallel to the return spring 212 in a natural state.

Further, with continued reference to fig. 2 and 3, the limiting structure 3 includes a limiting block 34 disposed on a wall of the chute 22, and the limiting block 34 is slidably abutted against the limiting bump 214. The circumferential side wall of the limiting block 34 is a first limiting wall 31, a second limiting wall 32 and a third limiting wall 33 which are sequentially connected. The second limiting wall 32 is recessed for the lock cylinder 21 to be clamped.

Specifically, the rotation plate 213 is located on a side wall of the core 211 corresponding to the stopper 34, and the stopper protrusion 214 is located on a side wall of the rotation plate 213 opposite to the core 211, that is, the stopper 34 is on a sliding path of the stopper protrusion 214, so that the stopper protrusion 214 slides between the first stopper wall 31, the second stopper wall 32, and the third stopper wall 33. It should be noted that the second limiting wall 32 is concavely formed with a locking groove, so that the limiting bump 214 is clamped into the locking groove, and the limiting bump 214 is limited to be separated from the limiting block 34.

In this embodiment, in the natural state of the return spring 212 and the return torsion spring 215, one end of the first limiting wall 31 and the second limiting wall 32 connected with each other extends obliquely in a direction away from the limiting bump 214. The purpose is that when the limit bump 214 slides from the third limit wall 33 to the first limit wall 31, the reset torsion spring 215 has elastic potential energy to drive the rotation plate 213 to move the limit bump 214 to the first limit wall 31.

Further, in order to better implement the locking structure in the embodiment of the present application, based on the locking structure, the embodiment of the present application further provides an indoor unit of an air conditioner. Referring to fig. 4 and 5 together, the air conditioning indoor unit includes the locking structure according to any of the above embodiments, and further includes an air conditioning body 4, a front panel 41 disposed on a front side of the air conditioning body 4, and a rear panel 42 disposed on a rear side of the air conditioning body 4. The front panel 41 is provided with an air outlet 411, and a movable door 43 is slidably provided between the front panel 41 and the air conditioner main body 4. The movable door 43 is used to open or close the air outlet 411. The lock box 2 is arranged on one of the movable door 43 and the air conditioner main body 4, the lock rod 1 is arranged on the other of the movable door 43 and the air conditioner main body 4, and when the movable door 43 closes the air outlet 411, the lock rod 1 is matched with the lock box 2 to lock the movable door 43.

In the present embodiment, the lock case 2 is disposed on the air conditioner main body 4 on the side facing the movable door 43, and the lock lever 1 is disposed on the side of the movable door 43 facing the lock case 2. The lock case 2 is provided with fixing lugs on both sides thereof, the fixing lugs having through holes so that screws pass through the through holes to fix the fixing lugs on the air conditioner body 4.

In other embodiments, the lock lever 1 is disposed on a side of the air conditioner body 4 facing the movable door 43, and the lock lever 1 is disposed on a side of the movable door 43 facing the lock case 2.

The air conditioner indoor unit in the embodiment of the application is provided with the locking structure in the embodiment, so that the air conditioner indoor unit has all the beneficial effects of the locking structure and is not repeated herein.

The above describes in detail a locking structure and an indoor unit of an air conditioner provided in the embodiments of the present application, and specific examples are applied to describe the principles and embodiments of the present application, where the description of the above embodiments is only for helping to understand the method and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims (10)

1. A locking structure, characterized by comprising:

the lock rod is provided with a first clamping part;

the lock box is limited with a chute, a lock cylinder is arranged in the chute in a sliding manner, the lock cylinder is provided with an initial position and a locking position, a second clamping part is arranged on the lock cylinder, the second clamping part is matched with the first clamping part, the first clamping part is released when the lock cylinder slides to the initial position, and the first clamping part is locked when the lock cylinder slides to the locking position;

the limiting structure is arranged in the sliding groove, connected with the lock cylinder and provided with a first limiting wall, a second limiting wall and a third limiting wall which are sequentially connected;

and the reset structure is arranged in the sliding groove and is connected with the lock cylinder.

2. The lock structure according to claim 1, wherein the lock cylinder includes:

the core body is arranged in the chute in a sliding way, and the second clamping part is arranged on the core body;

the reset structure comprises a reset spring, the reset spring is connected with one end of the core body far away from the second clamping part, one end of the reset spring far away from the core body is connected with the groove wall of the chute, and the reset spring has a natural state and a compression state; when the first clamping part is moved to be abutted with the core body and drives the core body to move from the initial position to the locking position, the return spring is changed from the natural state to the compressed state, and when the core body is moved from the locking position to the initial position, the return spring is restored from the compressed state to the natural state.

3. The locking structure according to claim 2, wherein the first clamping portion includes a boss provided at an end of the lock rod, the second clamping portion includes elastic buckles provided at both sides of the core, and when the second clamping portion is in a clamped state, the elastic buckles clamp the boss, limiting separation of the boss from the core; when the second clamping part is in an open state, the elastic buckle releases the boss.

4. The locking structure according to claim 3, wherein the notch of the chute adjacent to the first clamping portion is gradually expanded toward a direction adjacent to the lock lever.

5. The lock structure of claim 3, wherein the lock cylinder further comprises:

a rotating plate rotatably connected to one side of the core body,

the limiting lug is connected to one end, far away from the core body, of the rotating plate;

the reset torsion spring is sleeved at a rotating shaft where the rotating plate is rotationally connected with the core body;

in the process that the core body moves from the initial position to the locking position, the reset torsion spring acts on the rotating plate and drives the limiting lug to move to the second limiting wall along the first limiting wall, and in the process that the core body moves from the locking position to the initial position, the reset torsion spring acts on the rotating plate and drives the limiting lug to move to the third limiting wall along the second limiting wall and move to the first limiting wall along the third limiting wall.

6. The locking structure of claim 5, wherein when the return spring and the return torsion spring both return to natural states, the elastic buckle is in the open state, and the limit bump is located at one end of the first limit wall, which is close to the third limit wall.

7. The locking structure of claim 5, wherein the limiting structure comprises a limiting block arranged on a wall of the chute, the limiting block is in sliding abutting connection with the limiting projection, a circumferential side wall of the limiting block is a first limiting wall, a second limiting wall and a third limiting wall which are sequentially connected, and the second limiting wall is sunken for the lock cylinder to be clamped.

8. The lock-up mechanism of claim 7, wherein when the return spring and the return torsion spring are both in a natural state, an end of the first and second stopper walls connected to each other extends obliquely in a direction away from the stopper projection.

9. An indoor unit of an air conditioner, comprising a locking structure according to any one of claims 1-8, and further comprising an air conditioner main body, a front panel arranged at the front side of the air conditioner main body, and a rear panel arranged at the rear side of the air conditioner main body, wherein an air outlet is formed in the front panel, a movable door is slidably arranged between the front panel and the air conditioner main body, the movable door is used for opening or closing the air outlet, a lock box is arranged on one of the movable door and the air conditioner main body, a lock rod is arranged on the other one of the movable door and the air conditioner main body, and when the air outlet is closed by the movable door, the lock rod is matched with the lock box to lock the movable door.

10. The indoor unit of claim 9, wherein the lock box is disposed on a side of the air conditioner body facing the movable door, and the lock rod is disposed on a side of the movable door facing the lock box.