Anti-backflow and anti-overflow mechanism and humidifier

Abstract

The utility model relates to the technical field of humidifiers, and discloses an anti-reverse-overflow mechanism which comprises a shell with an upper opening and a lower opening, the interior of the shell is hollow, a containing cavity is formed in the shell, a support is arranged at the lower opening of the shell, a funnel-shaped channel which is through in the vertical direction is formed in the support, and a balancing weight is arranged in the containing cavity at intervals. The lower surface of the balancing weight extends downwards to form a guide rod, the guide rod is movably inserted into a channel formed by the support, and one end, extending out of the channel, of the guide rod is provided with a sealing cover with the area larger than that of the lower opening of the shell. When the humidifier topples over, the balancing weight in the containing cavity slides towards the water injection spraying opening along the bevel edge of the funnel-shaped channel under the action of gravity, then the guide rod and the sealing cover on the guide rod are driven to move, finally, the lower opening of the shell is sealed by the sealing cover, water in the humidifier is prevented from flowing out, and the risk that water overflows when the humidifier topples over is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to humidifier technical field especially is related to a prevent spilling mechanism. BACKGROUND

[0002] In dry season, the respiratory mucosa of human will become fragile because of dry, cause discomfort, in addition, dust, pollen and other air in the environment of the floating object can obviously increase, easy to cause respiratory disease, therefore people will use humidifier to adjust air humidity in dry indoor. In the process of using humidifier, it is inevitable that the humidifier is accidentally knocked down, in the family of pet, the pet in the home also exists the possibility of knocking down the humidifier, at this time, the water in the humidifier is easy to flow out from the water inlet, spray opening or single-port designed water spray opening, which may cause the floor or table top to be wet, or even cause a fire due to the wet power strip. Therefore, a prevent spilling mechanism is needed to prevent the water in the humidifier from spilling out when it is knocked down. SUMMARY

[0003] Therefore, it is necessary to provide a prevent spilling mechanism to solve the above problems.

[0004] The shell is hollow to form a receiving cavity, an upper opening is formed on the upper surface of the shell, a lower opening is formed on the lower surface of the shell, and a support of a funnel-shaped channel is fixedly connected to the lower opening.

[0005] The counterweight is spaced apart in the receiving cavity, the lower surface of the counterweight extends downward to form a guide rod, and the guide rod is movably inserted into the channel and extends out of the channel.

[0006] The sealing cover is fixedly connected to the bottom end of the guide rod, and the area of the sealing cover is greater than that of the lower opening.

[0007] Preferably, the upper opening of the shell is provided with a top cover, and the top cover is provided with a plurality of water spraying holes.

[0008] Preferably, the top cover is recessed downward at the plurality of water spraying holes to form a pit.

[0009] Preferably, the side wall of the counterweight is parallel to the cavity wall of the receiving cavity.

[0010] Preferably, the shape of the receiving cavity is a cylinder.

[0011] Preferably, the shape of the receiving cavity is an inverted circular table.

[0012] Preferably, the sealing cover is made of elastic material.

[0013] Preferably, the upper surface of one side of the sealing cover is fixedly connected to the lower surface of the shell.

[0014] A humidifier further comprising the anti-overflow water mechanism of any one of the preceding.

[0015] Preferably, the shell is provided with a fixing plate on both sides, bolt holes are formed on the fixing plate, a threaded hole is formed on the inner side of the top wall of the humidifier, and a mounting bolt is further included, which is threadedly connected to the threaded hole through the bolt hole.

[0016] The anti-overflow water mechanism of the utility model, including the shell of upper and lower openings, hollow inside to form a containing cavity, a bracket is arranged on the lower opening of the shell, a funnel-shaped channel is formed on the bracket in the vertical direction, a counterweight is arranged in the containing cavity, the lower surface of the counterweight extends downward to form a guide rod, the guide rod is movably inserted into the channel formed by the bracket, and one end of the guide rod extending out of the channel is provided with a sealing cover larger than the area of the lower opening of the shell. The utility model is applied to a humidifier with a single opening design, the anti-overflow water mechanism of the utility model has the functions of water injection and spraying for the humidifier, when the humidifier is tilted, the counterweight in the containing cavity slides along the inclined edge of the funnel-shaped channel to the water injection and spraying opening under the action of gravity, thereby driving the displacement of the guide rod and the sealing cover thereon, and finally the sealing cover closes the lower opening of the shell to prevent the water in the humidifier from flowing out, effectively avoiding the risk of water overflow when the humidifier is tilted. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structural schematic view of one embodiment of the anti-overflow water mechanism (without a top cover) of the utility model;

[0018] Figure 2 It is a perspective structural schematic view of one embodiment of the anti-overflow water mechanism (without a top cover) of the utility model; Figure 1 It is a perspective structural schematic view of one embodiment of the anti-overflow water mechanism (without a top cover) of the utility model;

[0019] Figure 3 It is a sectional view of one embodiment of the anti-overflow water mechanism (without a fixing plate) of the utility model;

[0020] Figure 4 It is a schematic view of one embodiment of the humidifier of the utility model.

[0021] The reference signs are as follows: 10 is an anti-overflow water mechanism, 100 is a shell, 100a is a containing cavity, 100b is an upper opening, 100c is a lower opening, 100d is a funnel-shaped channel, 110 is a bracket, 120 is a fixing plate, 120a is a bolt hole, 200 is a counterweight, 210 is a guide rod, 300 is a sealing cover, 400 is a top cover, and 400a is a water injection and spraying hole. DETAILED DESCRIPTION

[0022] In order to make the above objects, features and advantages of the present application more obvious, specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0023] The "upper and lower" directions described in the present application are described in the normal state of the humidifier.

[0024] The utility model discloses a kind of anti-overflow water mechanisms, specifically, please combine Figures 1-4 The anti-overflow water mechanism of the embodiment includes: a housing 100 with upper and lower surface openings and an internal hollow forming a receiving cavity 100a, a counterweight 200 disposed in the receiving cavity 100a, and a sealing cover 300 for closing the lower opening 100c of the housing 100. The lower opening 100c of the housing 100 is in communication with the water tank of the humidifier, and a bracket 110 is fixedly connected to the lower opening 100c of the housing 100. The bracket 110 has a funnel-shaped passage 100d formed in the vertical direction. The lower surface of the counterweight 200 extends downward to form a guide rod 210 with a length greater than the funnel-shaped passage 100d. The guide rod 210 is movably inserted into the funnel-shaped passage 100d, with one end of the guide rod 210 extending out of the bottom opening of the funnel-shaped passage 100d. The sealing cover 300 is fixedly connected to the guide rod 210 extending out of the bottom opening of the funnel-shaped passage 100d. The counterweight 200 and the guide rod 210 can move within the receiving cavity 100a along the funnel-shaped passage 100d, thereby moving the sealing cover 300 to close the lower opening 100c of the housing 100.

[0025] In the embodiment, the anti-overflowing water mechanism is applied to a humidifier with a single port design, that is, the humidifier uses the same port for water injection and spraying, and the anti-overflowing water mechanism is installed below the water injection and spraying port 400a of the humidifier, so that the containing cavity 100a of the anti-overflowing water mechanism is in communication with the water injection and spraying channel of the humidifier. In the normal operation of the humidifier, the water mist is sprayed out of the upper opening 100b of the anti-overflowing water mechanism during continuous spraying, and the humidifier is watered through the upper opening 100b of the anti-overflowing water mechanism when water is needed. When the humidifier is tilted, the weight block 200 in the containing cavity 100a tends to move downward under the action of gravity, and at this time, the guide rod 210 on the lower surface of the weight block 200 prevents the weight block 200 from moving downward along the gravity direction in the funnel-shaped channel 100d, but slides downward along the side wall of the funnel-shaped channel 100d, that is, the weight block 200 moves to the upper opening 100b of the shell 100, and then drives the sealing cover 300 to move to the lower opening 100c of the shell 100 through the guide rod 210, and finally the sealing cover 300 closes the lower opening 100c of the shell 100, so that the water in the humidifier cannot flow out of the anti-overflowing water mechanism, effectively avoiding the risk of water overflow caused by tilting of the humidifier.

[0026] In order to prevent foreign matter from entering the containing cavity 100a of the anti-overflowing water mechanism, in an embodiment, as shown in Figure 3 , if the upper opening 100b of the shell 100 is kept in an open state without covering in daily use, foreign matter is easy to enter the containing cavity 100a, which may cause a decrease in the water injection and spraying rate of the anti-overflowing water mechanism, or even cause the weight block 200 to be stuck in the containing cavity 100a, resulting in failure of the anti-overflowing water mechanism. Therefore, in the embodiment, the top cover 400 is arranged at the upper opening 100b of the shell 100, and the water injection and spraying hole 400a is formed on the top cover 400, so as to ensure the normal water injection and spraying function, prevent large-size foreign matter from entering the containing cavity 100a and causing the weight block 200 to be stuck, reduce the opportunity of small-size foreign matter entering the containing cavity 100a, and increase the reliability of the anti-overflowing water mechanism.

[0027] On the basis of the above embodiment, since the anti-overflowing water mechanism of the utility model is applied to a humidifier with a single port design, water needs to be injected into the humidifier through the top cover 400, and the flow rate cannot be accurately controlled during water injection, so water may be injected in excess at a certain moment, and the water cannot all pass through the water injection and spraying hole 400a, resulting in water overflow. In an embodiment, as shown in Figure 3 , the top cover is recessed downward to form a pit around the water injection and spraying hole 400a, so that even if water is occasionally injected in excess, the excess water can be stored in the pit of the top cover 400, effectively reducing the overflow of water injection. In addition, in the embodiment, the bottom surface of the pit is inclined, so that the excess water automatically flows into the water injection and spraying hole 400a under the action of gravity.

[0028] To ensure the efficiency of water injection and spraying, in one embodiment, as shown in Figures 1-3 Figure 1, the sidewall of the weight 200 in the accommodating cavity 100a is always parallel to the cavity wall of the accommodating cavity 100a under normal circumstances, which can ensure the same speed of water injection and water spray through the weight 200 in the accommodating cavity 100a at different positions under the premise of having a certain mass, and will not slow down the efficiency of water injection and spraying of the anti-overflow water mechanism due to the narrowness of the weight 200 and the cavity wall of the accommodating cavity 100a at a certain position, effectively ensuring the efficiency of water injection and spraying of the anti-overflow water mechanism.

[0029] In one embodiment, the shape of the accommodating cavity 100a is cylindrical, and the shape of the weight 200 in the accommodating cavity 100a is also cylindrical. The gap between the weight 200 and the inner wall of the accommodating cavity 100a can ensure that the weight 200 has enough travel to drive the sealing cover 300 to close the lower opening 100c when the humidifier is tilted. The cylindrical accommodating cavity 100a has the following advantages: dispersing pressure on the cavity wall, resisting deformation to some extent, reducing resistance when water or water mist flows in the cavity of the anti-overflow water mechanism, and allowing water and water mist to pass through the accommodating cavity 100a at maximum flow.

[0030] In one embodiment, as shown in Figures 1-3 Figure 2, the shape of the accommodating cavity 100a is an inverted circular table, and the shape of the weight 200 is also an inverted circular table. The gap between the weight 200 and the inner wall of the accommodating cavity 100a can ensure that the weight 200 has enough travel to drive the sealing cover 300 to close the lower opening 100c when the humidifier is tilted. In this embodiment, the upper opening 100b of the shell 100 is larger than the lower opening 100c of the shell, and the shell 100 is trumpet-shaped, which can reduce water splashing when water is injected.

[0031] In one embodiment, the sealing cover 300 is made of elastic material. Compared with non-elastic material, when the humidifier is tilted, the weight 200 drives the sealing cover 300 to move towards the lower opening 100c of the shell 100 through the guide rod 210 and close the lower opening 100c. In addition, the elastic material will elastically deform due to continuous stress, causing the upper surface of the sealing cover 300 to slightly extrude into the lower opening 100c, which can significantly improve the sealing performance of the sealing cover 300, making it more difficult for the humidifier to overflow when it is accidentally tilted.

[0032] In one embodiment, as shown in Figures 2-3As shown in the above embodiment, the sealing cover 300 is made of an elastic material, and one side of the upper surface of the sealing cover 300 is fixedly connected to the lower surface of the shell 100. When the humidifier is tilted, a collision occurs at the moment of tilting, and the impact caused by the collision sometimes causes the sealing cover 300 to excessively penetrate into the lower opening 100c or not completely seal the lower opening 100c, thereby causing a gap, which reduces the sealing performance and still causes a small amount of water to flow out of the water injection and spraying hole 400a. In the present embodiment, one end of the sealing cover 300 is fixed to the lower surface of the shell 100, thereby limiting the movement range of the sealing cover 300 and reducing the impact caused by the collision to some extent, effectively reducing the possibility of causing a gap and improving the reliability of the anti-overflowing water mechanism.

[0033] In an embodiment, as shown in the drawings, Figures 1-3 As shown, two fixed plates 120 are arranged opposite to each other on the side of the anti-overflowing water mechanism, and bolt holes 120a are formed in the fixed plates 120. Correspondingly, threaded holes are formed in the inner surface of the top end of the humidifier, and mounting bolts are used to pass through the bolt holes 120a in the fixed plates 120 and be screwed into the threaded holes in the inner surface of the top end of the humidifier.

[0034] The anti-overflowing water mechanism of the present application is installed on the water injection and spraying hole of a single-port designed humidifier and is in communication with the water tank of the humidifier. When water injection is needed, the user injects water into the humidifier from the water injection and spraying hole, and the water enters the anti-overflowing water mechanism from the water injection and spraying hole and then enters the water tank of the humidifier. When spraying, the water mist passes through the anti-overflowing water mechanism and is sprayed out of the water injection and spraying hole. The anti-overflowing water mechanism of the present application sets a counterweight on the bracket of the lower opening of the shell, the lower surface of the counterweight is provided with a guide rod, and the guide rod is connected with a sealing cover. When the humidifier is tilted, the counterweight is jointly acted on by gravity and the bracket and moves towards the upper opening of the anti-overflowing water mechanism, thereby driving the sealing cover to move towards the lower opening of the anti-overflowing water mechanism and finally close the lower opening, effectively preventing the water in the water tank from overflowing.

[0035] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present application.

[0036] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A spill-resistant water mechanism, comprising: The utility model relates to a kind of anti-overflow water mechanism, including: Shell (100), the shell (100) is hollowly formed and is accommodated cavity (100a), the shell (100) upper surface is opened with upper opening (100b), lower surface is opened with lower opening (100c), the lower opening (100c) is fixedly connected with the support (110) of funnel-shaped passage (100d) being opened along vertical direction; Counterweight (200), the counterweight (200) is spaced apart and arranged in the accommodating cavity (100a), the lower surface of the counterweight (200) extends downward to form guide rod (210), the guide rod (210) is movably inserted in the funnel-shaped passage (100d) and extends from the funnel-shaped passage (100d); Sealing cover (300), the sealing cover (300) is fixedly connected at the bottom end of the guide rod (210), and the area of the sealing cover (300) is greater than the lower opening (100c).

2. The anti-overflow water mechanism according to claim 1, wherein, The upper opening (100b) of the shell is provided with a top cover (400), and the top cover (400) is provided with a plurality of water injection spray holes (400a).

3. The anti-overflow mechanism according to claim 2, wherein, The top cover (400) is recessed downward at the plurality of water injection spray holes (400a) to form a pit.

4. The anti-overflow mechanism according to claim 1, wherein, The side wall of the counterweight (200) is parallel to the cavity wall of the accommodating cavity (100a).

5. The anti-overflow mechanism according to claim 4, wherein, The shape of the accommodating cavity (100a) is cylindrical.

6. The anti-overflow mechanism according to claim 4, wherein, The shape of the accommodating cavity (100a) is inverted circular table.

7. The anti-overflow mechanism according to claim 1, wherein The sealing cover (300) is made of elastic material.

8. The anti-overflow mechanism according to claim 7, wherein, The upper surface of one side of the sealing cover (300) is fixedly connected with the lower surface of the shell (100).

9. A humidifier, characterized in that The utility model relates to a kind of anti-overflow water mechanism, including:

10. The humidifier of claim 9, wherein, The shell (100) is provided with fixed plate (120) on both sides, the fixed plate (120) is opened with bolt hole (120a) on the upper surface, the humidifier top wall inner side is opened with screw hole, and further include installation bolt, the installation bolt is screw-connected in the screw hole by passing through the bolt hole (120a).

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