Self-locking top cover for humidifier

Abstract

The utility model relates to the technical field of humidifiers, in particular to a self-locking top cover for a humidifier. When the humidifier topples over, the top cover of the humidifier is accidentally disengaged due to collision, and water in the water tank of the humidifier overflows. According to the self-locking top cover for the humidifier, a spring support, a spring and an L-shaped locking plate are arranged in a containing cavity of the self-locking top cover, a key and a spring bolt are arranged on a vertical plate and a horizontal plate of the L-shaped locking plate respectively in a protruding mode, the key penetrates out of a first through hole in the side wall of a handle, and the spring bolt penetrates out of a second through hole in a lower cover. The top cover is convenient to disassemble and assemble, meanwhile, the probability that the top cover is accidentally disengaged when the humidifier is accidentally toppled and collided is reduced, and the reliability of the humidifier is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to humidifier technical field, especially a kind of self-locking top cover for humidifier. BACKGROUND

[0002] In modern life, people often use humidifier to adjust indoor humidity. Humidifier generally adopts the design of top cover plus humidifier body, and adopts the design of setting mist outlet hole on top cover. Disassembling top cover is the routine operation of humidifier. Some humidifiers need to be disassembled to add water to water tank. Most humidifiers need to be cleaned regularly to ensure mist effect. Therefore, the top cover of the existing humidifier is generally easy to disassemble. However, in the daily use of humidifier, it often happens that the humidifier is knocked down. At this time, the easy-to-disassemble top cover may be opened due to collision, causing water in the humidifier water tank to flow out. Therefore, a locking mechanism is needed to prevent the top cover from opening due to collision when the humidifier is accidentally knocked down. SUMMARY

[0003] Therefore, it is necessary to provide a self-locking top cover for humidifier to solve the above problems. The self-locking top cover for humidifier comprises a lower cover and an upper cover mounted on the lower cover. The lower cover and the upper cover form a containing cavity. A mist outlet pipe is arranged in the containing cavity to communicate with the humidifier mist outlet device and the outside. The upper cover is protruded upward to form a handle. The handle is hollow to form a handle cavity. A spring support is arranged at the center of the handle cavity. Two springs are fixedly connected to the spring support and parallel to the upper cover. Each spring is fixedly connected to an L-shaped lock plate at the end away from the spring support. The spring has a tendency to push the L-shaped lock plate away from the spring support. The L-shaped lock plate comprises a vertical plate fixedly connected to the spring and located in the handle cavity, and a horizontal plate extending away from the spring support. A first through hole is formed in the side wall of the handle opposite to the vertical plate. A second through hole is formed in the side wall of the lower cover opposite to the end of the horizontal plate away from the spring. A button is protruded from the surface of the vertical plate facing the first through hole and passing through the first through hole. A lock tongue is protruded from the end of the horizontal plate away from the spring and passing through the second through hole.

[0004] Preferably, a protruding block is further arranged on the upper surface of the lower cover. A locking plate is slidably arranged on the upper surface of the protruding block. The locking plate slides in and out between the two L-shaped lock plates perpendicular to the extension direction of the spring. The locking plate is used to prevent the L-shaped lock plate from moving towards the spring support.

[0005] Preferably, a third through hole is formed in the position opposite to the locking plate of the upper cover. A pull tab is protruded from the upper surface of the locking plate to control the sliding of the locking plate. The pull tab passes out of the third through hole.

[0006] Preferably, the surface of the vertical plate facing the surface of the spring support is provided with a limiting groove for accommodating the locking plate.

[0007] Preferably, the surface of the upper cover below the key is concave to form a handle groove.

[0008] Preferably, the upper cover is provided with a mist outlet cover, and the sidewall of the mist outlet cover is provided with an opening to form a mist outlet channel with the surface of the upper cover.

[0009] Preferably, the mist outlet cover is provided with a mist outlet grille.

[0010] Preferably, the bottom of the lower cover is provided with a metal disc provided with a plurality of air holes.

[0011] Preferably, the bottom of the lower cover is provided with a sealing ring.

[0012] A humidifier also comprises the self-locking top cover described above.

[0013] The self-locking top cover for a humidifier described above, by arranging two opposite springs on the spring support in the handle cavity, and fixing an L-shaped locking plate on each spring, the vertical plate and the horizontal plate of the L-shaped locking plate are respectively provided with a key and a locking tongue, the key and the locking tongue respectively pass out from the first through hole and the second through hole, which realizes the function of unlocking the self-locking top cover by pressing the key to disassemble the top cover, and the top cover will not be accidentally opened due to collision when the humidifier is tilted, which improves the convenience of disassembling the top cover and the stability of the top cover against collision. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional view of the self-locking top cover for a humidifier in one embodiment;

[0015] Figure 2 is another sectional view of the self-locking top cover for a humidifier in one embodiment from another angle;

[0016] Figure 3 is a perspective view of the self-locking top cover for a humidifier in one embodiment;

[0017] Figure 4 is a sectional view of the humidifier installed with the self-locking top cover in one embodiment;

[0018] Figure 5 is another sectional view of the humidifier installed with the self-locking top cover in one embodiment from another angle.

[0019] Explanation of reference signs: 10 - self-locking top cover, 100 - lower cover, 100a - accommodating cavity, 100b - second through hole, 110 - mist outlet pipe, 111 - mist outlet cover, 112 - mist outlet grid, 120 - protrusion, 130 - locking plate, 131 - tab, 140 - metal disc, 140a - air hole, 150 - sealing ring, 200 - upper cover, 210 - handle, 210a - handle cavity, 210b - first through hole, 210c - third through hole, 210d - handle recess, 211 - spring support, 212 - spring, 213 - L-shaped locking plate, 2131 - vertical plate, 2131a - limiting recess, 2132 - horizontal plate, 2133 - button, 2134 - locking tongue DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to give a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] The "upper" and "lower" directions in the utility model are described in the normal state of the humidifier.

[0022] The utility model discloses a self-locking top cover for humidifier, like Figures 1-5As shown, the self-locking top cover for the humidifier in the embodiment comprises a lower cover 100 and an upper cover 200 mounted on the lower cover 100, which are mounted together to form a containing cavity 100a for containing accessories in the top cover. An outlet mist pipe 110 is arranged in the containing cavity 100a, which is used to communicate the outlet mist device of the humidifier with the outside. After the outlet mist device of the humidifier generates water mist, the water mist is discharged to the outside through the outlet mist pipe 110. In the embodiment, a handle 210 is formed by protruding upward at the center of the upper surface of the upper cover 200 of the self-locking top cover, and the handle 210 is hollow inside to form a handle cavity 210a, which can effectively reduce the mass of the self-locking top cover, thereby reducing the center of gravity of the entire humidifier to reduce the risk of tipping. A spring bracket 211 is arranged at the center of the handle cavity 210a, and in the embodiment, the spring bracket 211 is fixed on the top wall of the handle cavity 210a. Two springs 212 are mounted on the spring bracket 211 opposite to each other, and each end of the two springs 212 is respectively mounted with an L-shaped lock plate 213. The L-shaped lock plate 213 comprises a vertical plate 2131 and a horizontal plate 2132, the spring 212 is fixedly connected with the vertical plate 2131, the vertical plate 2131 is vertically arranged in the handle cavity 210a, and the horizontal plate 2132 extends away from the spring bracket 211. A first through hole 210b is formed in the side wall of the handle 210 opposite to the vertical plate 2131, the surface of the vertical plate 2131 facing the first through hole 210b is protrudingly provided with a button 2133, and the button 2133 penetrates out of the first through hole 210b. The horizontal plate 2132 is protrudingly provided with a lock tongue 2134 away from the spring, a second through hole 100b is formed in the side wall of the lower cover 100 opposite to the lock tongue 2134, the lock tongue 2134 penetrates out of the second through hole 100b, and the spring 212 is always in a compressed state to ensure that the L-shaped lock plate 213 is pushed away from the spring bracket 211, and at the same time, the lock tongue 2134 penetrates into the inner ring clamping groove of the decorative ring of the humidifier to fix the self-locking top cover on the humidifier. When it is needed to detach the self-locking top cover from the humidifier, the button 2133 protruding out of the first through hole of the two side walls of the handle 210 is only pressed, at this time, the L-shaped lock plate 213 moves as a whole to the spring bracket 211, the spring 212 is compressed, and the lock tongue 2134 is pulled out of the inner ring clamping groove of the decorative ring of the humidifier, so that the self-locking top cover can be detached from the humidifier.When the self-locking top cover needs to be installed on the humidifier, the button 2133 is also pressed to move the L-shaped lock plate 213 to the spring support 211, the spring 212 is compressed, the lock tongue 2134 is retracted into the second through hole 100b, and then the self-locking top cover is installed on the corresponding position of the humidifier, so that the second through hole 100b and the hole lock tongue 2134 are opposite to the ring slot in the ring of the humidifier decoration ring. Subsequently, the button is released, and the L-shaped lock plate 213 moves away from the spring support 211 under the elastic force of the spring 212, that is, the lock tongue 2134 in the second through hole extends from the second through hole 100b and is inserted into the ring slot in the ring of the humidifier decoration ring. The self-locking top cover is installed on the humidifier. The self-locking top cover for the humidifier can realize the function of quickly disassembling the top cover. At the same time, since the spring 212 always maintains the tendency of pushing the L-shaped lock plate 213 away and always makes the lock tongue 2134 inserted into the inner ring slot of the humidifier decoration ring, the locking can be maintained when the humidifier is tilted, and the risk of water overflow caused by the collision of the top cover of the humidifier when the humidifier is tilted is reduced.

[0023] In order to increase the stability of the self-locking top cover, in an embodiment, as shown in Figures 1-5 a protrusion 120 is provided on the upper surface of the lower cover 100 in the accommodating cavity 100a of the self-locking top cover, and a locking plate 130 is slidably arranged on the protrusion 120. The locking plate 130 slides along a direction perpendicular to the extension and retraction direction of the spring 212, that is, the moving direction of the L-shaped lock plate 213. The locking plate 130 slides in and out between the two L-shaped lock plates 213. When the locking plate 130 slides between the two L-shaped lock plates 213, the two L-shaped lock plates 213 are blocked and cannot move to the spring support 211, and the lock tongue 2134 cannot be pulled out of the inner ring slot of the humidifier decoration ring. That is, the self-locking top cover cannot be unlocked by pressing the button 2133 to be disassembled from the humidifier. When the locking plate 130 slides out of the two L-shaped lock plates 213, the two L-shaped lock plates 213 can normally move, and the self-locking top cover can be normally unlocked by pressing the button 2133, and then the self-locking top cover can be disassembled from the humidifier. The locking plate 130 can further reduce the possibility of the top cover being detached due to collision when the humidifier is tilted, realize secondary locking, and increase the reliability of the self-locking top cover.

[0024] On the basis of the previous embodiment, in the present embodiment, a third through hole 210c is formed at the position opposite to the locking plate 130 of the upper cover 200, a tab is protruded on the locking plate 130, and the tab 130 passes out of the third through hole 210c. The tab 130 is used to control the sliding of the locking plate 130 on the protrusion 120 in and out of the two L-shaped lock plates 213, to realize secondary locking and increase the convenience of use.

[0025] In order to further increase the stability of the self-locking top cover, in an embodiment, a limiting groove 2131a is formed on the surface of the vertical plate 2131 facing the spring support 211, which is located on the movement track of the locking plate 130, for accommodating the locking plate 130. When secondary locking is needed, the locking plate 130 slides into the limiting groove 2131a to prevent the L-shaped locking plate 210 from moving towards the spring support 211. The limiting groove 2131a allows the locking plate 130 to move only within the limiting groove 2131a. Without the limiting groove 2131a, when the humidifier is tilted, the locking plate 130 may be twisted due to collision, which may cause the secondary locking to fail. The limiting groove 2131a can greatly reduce the possibility of the locking plate 130 being twisted, further improving the stability of the self-locking top cover.

[0026] In order to increase the stability of the humidifier with the self-locking top cover, in an embodiment, the surface of the upper cover 200 below the button 2133 is recessed downward to form a handle recess 210d, which can reduce the height of the handle 210, lower the center of gravity of the humidifier, and increase the stability of the humidifier.

[0027] In an embodiment, an outflow cover 111 is further provided on the outflow pipe 110, and an opening is formed on the side wall of the outflow cover 111. The water mist sprayed by the humidifier using heating to generate water vapor can reach a temperature of about 60°C. If the high-temperature water mist is directly sprayed onto the skin, it may cause burns. In the present embodiment, the outflow cover 111 and the surface of the upper cover 200 form a curved outflow channel, so that the water mist is not directly sprayed out of the outflow hole. The water mist sprayed out of the curved outflow channel can significantly reduce the flow rate and temperature of the water mist, reducing the possibility of skin burns caused by the water mist, and improving the safety of the humidifier.

[0028] In an embodiment, an outflow grille 112 is provided above the outflow cover 111, which can block foreign objects from entering the outflow pipe 110 to some extent, and further cut and disperse the water mist flow, improving the safety of the humidifier.

[0029] In one embodiment, a metal disc 140 is arranged at intervals on the bottom of the bottom cover 100 of the top cover, and is detachably connected to the bottom of the bottom cover 100 of the top cover. The disc surface of the metal disc 140 is provided with a plurality of air holes 140a. In a humidifier that generates water mist by heating, when the water mist generating device generates water mist, the water mist is easily concentrated and sprayed on one point on the bottom of the top cover, which causes the temperature of the point to be significantly higher than other areas, and causes the material of the area where the point is located to be accelerated aging. After the metal disc 140 is installed, the water mist is first sprayed on the metal disc 140, and then dispersed through the air holes 140a of the metal disc 140. In addition, the metal disc 140 has good heat conductivity, which can make the water mist pass through different air holes 140a at the same temperature, reduce the temperature difference between different areas on the bottom of the bottom cover 100 of the top cover, and effectively prolong the service life of the top cover and the humidifier. In this embodiment, the metal disc 140 is made of stainless steel.

[0030] In order to improve the sealing between the self-locking top cover and the humidifier body, in one embodiment, as shown in Figures 1-5 , a sealing ring 150 is arranged on the bottom of the self-locking top cover. In this embodiment, a silica gel sealing ring is selected. When the humidifier is working, there is a temperature difference between the self-locking top cover and the humidifier body, so that a gap is generated at the connection between them due to the temperature difference, which reduces the air tightness of the humidifier itself. Not only the spraying efficiency of the mist outlet is reduced, but also there is a risk that the water mist is sprayed from the gap, which is easy to cause damage to the connection for a long time. Arranging the sealing ring 150 on the bottom of the self-locking top cover can effectively block the gap generated at the connection due to the temperature difference, increase the air tightness of the self-locking top cover and the humidifier, and improve the spraying efficiency and durability of the humidifier.

[0031] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0032] The above-mentioned embodiments only express several embodiments of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A self-locking top cover for a humidifier, comprising a lower cover (100) and an upper cover (200) mounted on the lower cover (100), the lower cover (100) and the upper cover (200) enclosing a containing cavity (100a), a mist outlet pipe (110) being arranged in the containing cavity (100a) and communicating with a mist outlet device of the humidifier and the outside, characterized in that, The upper cover (200) is upwardly protruded to form a handle (210), the handle (210) is hollow to form a handle cavity (210a), the handle cavity (210a) is centrally provided with a spring support (211), the spring support (211) is fixedly connected with two springs (212) which are oppositely arranged and parallel to the upper cover (200), each spring (212) is fixedly connected with an L-shaped lock plate (213) at an end away from the spring support (211), the spring (212) has a tendency to push the L-shaped lock plate (213) away from the spring support (211), the L-shaped lock plate (213) comprises a vertical plate (2131) fixedly connected with the spring (212) and located in the handle cavity (210a) and a horizontal plate (2132) extending away from the spring support (211), a first through hole (210b) is formed in a side wall of the handle (210) opposite to the vertical plate (2131), a second through hole (100b) is formed in a side wall of the lower cover (100) opposite to an end of the horizontal plate (2132) away from the spring (212), a surface of the vertical plate (2131) facing the first through hole (210b) is protrudingly provided with a key (2133) penetrating through the first through hole (210b), and an end of the horizontal plate (2132) away from the spring (212) is protrudingly provided with a lock tongue (2134) penetrating through the second through hole (100b).

2. The self-locking top cover for a humidifier of claim 1, wherein, A protruding block (120) is further provided on an upper surface of the lower cover (100), an upper surface of the protruding block (120) is slidably provided with a locking plate (130), the locking plate (130) slides in and out between the two L-shaped lock plates (213) in a direction perpendicular to an extension direction of the spring (212), and the locking plate (130) is used to prevent the L-shaped lock plates (213) from moving towards the spring support (211).

3. The self-locking top cover for a humidifier of claim 2, wherein, A third through hole (210c) is formed in a position of the upper cover (200) opposite to the locking plate (130), a protruding tab (131) for controlling sliding of the locking plate (130) is protrudingly provided on an upper surface of the locking plate (130), and the protruding tab (131) penetrates out of the third through hole (210c).

4. The self-locking top cover for a humidifier according to claim 3, wherein, A limiting groove (2131a) for accommodating the locking plate (130) is formed in a surface of the vertical plate (2131) facing the spring support (211).

5. The self-locking top cover for a humidifier of claim 1, wherein, A surface of the upper cover (200) below the key (2133) is downwardly recessed to form a handle recess (210d).

6. The self-locking top cover for a humidifier of claim 1, wherein, An out-mist cover (111) is provided on an upper portion of the out-mist pipe (110), a side wall of the out-mist cover (111) has an opening to form an out-mist passage with a surface of the upper cover (200).

7. The self-locking top cover for a humidifier of claim 6, wherein, An out-mist grille (112) is provided above the out-mist cover (111).

8. The self-locking top cover for a humidifier of claim 1, wherein, A metal disc (140) provided with a plurality of air holes (140a) is provided on a bottom portion of the lower cover (100).

9. The self-locking top cover for a humidifier of claim 1, wherein, A sealing ring (150) is provided on the bottom portion of the lower cover (100).

10. A humidifier characterised in that, A self-locking top cover is provided. The self-locking top cover comprises the self-locking top cover according to any one of claims 1-9.

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