Anti-backflow humidifier

Abstract

The utility model discloses an anti-backflow humidifier which comprises a box body, a flow guide pipe, a heating disc, a steam cover, a water mist channel and a water mist outlet, the flow guide pipe, the heating disc, the steam cover, the water mist channel and the water mist outlet are arranged in a cavity of the box body, and the flow guide pipe comprises a blocking and buffering mechanism which is used for changing the water flow direction and reducing the water flow speed so as to prevent backflow impact. The heating disc is used for heating water flowing out of the flow guide pipe to form water vapor, the steam cover is arranged above the heating disc and communicated with the water mist channel, the water mist channel is communicated with the water mist outlet, and the water vapor can flow along the steam cover, the water mist channel and the water mist outlet in sequence, so that the water mist is discharged. According to the utility model, the purpose of humidifying by discharging hot fog can be achieved, and in the humidifying process, the condensate water can flow back to a designated position and avoid interference on water shortage alarm caused by high-speed impact backflow through the condensate water baffle and the blocking and buffering mechanism; the accuracy of water shortage alarm is ensured, and the influence of backflow on parts on related parts in the box body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of humidifiers, in particular to a backflow-proof humidifier. Background Art

[0002] Humidifiers are small household appliances commonly used in life and work. Through humidifiers, the area around the humidifier can be humidified to adjust the dryness in a small space. The humidifier discharges normal temperature water mist that is not heated or high temperature water mist (i.e. hot mist) that is heated. The high temperature here only refers to water mist that is higher than normal temperature (25°C). Before the water mist is formed, the water needs to flow to a specific location so that it can be condensed and / or evaporated to form water mist. In the water path where the water flows, if the structural design is unreasonable, the evaporated high temperature water will flow back to non-target areas. Since the water flows back to other places instead of the target area, it will cause water waste. In addition, it may also affect the relevant components inside the humidifier. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a backflow-proof humidifier, which can solve the problems described in the background technology.

[0004] The technical solution to achieve the purpose of the utility model is: a backflow prevention humidifier, including a box body, and a guide pipe, a heating plate, a steam cover, a water mist channel and a water mist outlet arranged in the cavity of the box body,

[0005] The guide pipe includes a damping mechanism for changing the direction of water flow and reducing the flow velocity to prevent backflow impact.

[0006] The heating plate is used to heat the water flowing out of the guide pipe to form water vapor.

[0007] The steam hood is arranged above the heating plate and is connected to the water mist channel, and the water mist channel is connected to the water mist outlet.

[0008] The water vapor can flow along the steam hood, the water mist channel and the water mist outlet in sequence, thereby discharging the water mist.

[0009] Furthermore, it also includes a launching assembly and a launching float, the launching assembly is linked to the launching float, the launching float is used to open and close the launching assembly under the action of external force, and the output end of the launching assembly is connected to the guide pipe.

[0010] Furthermore, it also includes a water-blocking plate, through which the water-discharging assembly is installed in the cavity of the box body. The water-blocking plate is horizontally laid in the cavity of the box body. The water-blocking plate is in sealing contact with the inner wall of the box body to divide the cavity of the box body into two layers, namely an upper cavity and a lower cavity. The water-discharging assembly, water-discharging float, guide pipe, and heating plate are all located in the lower cavity, and the steam hood and water mist channel are all located in the upper cavity.

[0011] Furthermore, the heating plate is located in the middle of the lower cavity and is spaced apart from the bottom of the lower cavity. The steam hood covers the heating plate. A through hole is provided on the steam hood, which is connected to the water mist channel. The water mist channel is located directly above the through hole. The water mist outlet is provided at one end of the water mist channel away from the steam hood. The water mist outlet is provided on the top plate of the box body, and the water mist outlet passes through the top plate.

[0012] Furthermore, it also includes a fan, which is installed in the box body and is used to introduce air outside the box body into the box body, the output end of the fan is connected to the inlet of the air outlet channel, and the outlet of the air outlet channel is connected to the inside of the steam hood.

[0013] The air outlet channel is also provided with a condensation water baffle, which is vertically suspended on the water-blocking plate and is located on a side close to the outlet.

[0014] Furthermore, it also includes a water shortage float, which is used to detect whether there is a water shortage in the water path from the water discharge component to the water pipe.

[0015] Furthermore, the water shortage float is located on one side of the water launch float and is spaced apart from the water launch float. The water shortage float is located in the water path from the water launch component to the water guide pipe, and the water shortage float is located in the lower cavity.

[0016] Furthermore, the guide tube also includes a guide cavity, a water inlet channel and a water outlet. The damping mechanism, the water inlet channel and the water outlet are all arranged in the guide cavity. The water inlet channel, the damping mechanism and the water outlet are connected in sequence. The damping mechanism is between the water inlet channel and the water outlet. The water inlet channel is located on the side of the guide tube close to the water-deficient float.

[0017] Furthermore, the damping mechanism is arranged at the turning point of the guide cavity, and the damping mechanism includes a plurality of guide water baffles, each of which is arranged at intervals, and the guide water baffles are used to guide the flow direction of water, and the guide water baffles are provided with guide recesses, and the guide recesses are located on one side of the guide water baffles, and the width of the guide recesses is smaller than the width of the guide water baffles, and the guide recesses of two adjacent guide water baffles are staggered, and the height of the guide water baffles is greater than the guide recesses.

[0018] Furthermore, the height of the guide water baffle is the same as the depth of the groove in the guide cavity.

[0019] The beneficial effects of the utility model are as follows: the utility model can discharge hot mist to achieve the purpose of humidification, and can also realize backflow to the designated position and avoid high-speed impact backflow and interference with the water shortage alarm through the condensation water baffle and the buffer mechanism during the humidification process, thereby ensuring the accuracy of the water shortage alarm and avoiding the impact of backflow on the components at related parts of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the schematic diagrams of the internal partial structure of the humidifier;

[0021] Figure 2 This is one of the schematic diagrams of the internal partial structure of the humidifier;

[0022] Figure 3 This is one of the schematic diagrams of the internal partial structure of the humidifier;

[0023] Figure 4 is a schematic diagram of the structure of the guide tube;

[0024] Figure 5 It is a top view schematic diagram under perspective vision;

[0025] In the figure, 1-water launching assembly, 11-water stop plug, 12-water stop spring, 13-water launching push rod, 2-water launching float, 3-water shortage float, 4-box, 5-guide pipe, 51-guide cavity, 52-water inlet channel, 53-water outlet, 54-guide water baffle, 541-guide recess, 6-water mist outlet, 7-water mist channel, 8-steam hood, 9-heating plate, 10-fan, 101-condensate baffle, 14-water inlet, 15-enclosing baffle, 16-water baffle mechanism. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation plans:

[0027] like Figure 1-Figure 5As shown, a backflow prevention humidifier includes a housing 4, and a water discharge assembly 1, a water discharge float 2, a water shortage float 3, a guide tube 5, a heating plate 9, a steam hood 8 and a water mist channel 7 arranged in the cavity of the housing 4. The water discharge assembly 1 is linked to the water discharge float 2, and the water discharge float 2 is used to open and close the water discharge assembly 1 under the action of an external force. When the water discharge assembly 1 is in an open state, water can pass through the water discharge assembly 1 and flow out of the water discharge assembly 1. When the water discharge assembly 1 is in a closed state, water cannot flow into the water discharge assembly 1 or flow out of the water discharge assembly 1. The launching assembly 1 includes a water stop plug 11, a water stop spring 12 and a launching ram 13. The water stop spring 12 is sleeved on the launching ram 13. The two ends of the water stop spring 12 respectively contact the water stop plug 11 and the launching ram 13. The water stop spring 12 is used to reset the launching ram 13 from the first position to the initial position. The initial position: the launching ram 13 is in sealing contact with the water stop plug 11; the first position: the launching ram 13 is at least partially separated from the water stop plug 11 to form a passage, so that water can flow through the launching assembly 1 from the passage and flow out of the launching assembly 1. For example, the launching float 2 is controlled to move up and down by a switch. The upward movement of the launching float 2 can push open the launching assembly 1, and the water flows into the launching assembly 1 and flows out of the launching assembly 1. The launching assembly 1 that allows water to pass through in the open state and prohibits water from passing through in the closed state is a prior art, so it will not be described here.

[0028] The water discharge assembly 1 is installed in the cavity of the box body 4 through a water baffle (not shown in the figure). The water baffle is horizontally laid in the cavity of the box body 4. The water baffle and the inner wall of the box body 4 are in sealing contact to divide the cavity of the box body 4 into two layers, namely an upper cavity and a lower cavity. The water discharge assembly 1, the water discharge float 2, the water shortage float 3, the guide tube 5, and the heating plate 9 are all located in the lower cavity, and the steam hood 8 and the water mist channel 7 are all located in the upper cavity. The water stop plug 11 passes through the water baffle and is sealed to the water baffle. For example, a sealing ring is provided at the joint of the water stop plug 11 and the water baffle to achieve a sealed connection. The water stop plug 11 can be a water stop plug 11 made of silicone.

[0029] The water shortage float 3 is located on one side of the water discharge float 2 and is spaced apart from the water discharge float 2. The water shortage float 3 is located on the waterway connecting the water discharge assembly 1 to the water guide pipe. The water flowing out of the water discharge assembly 1 flows into the guide pipe 5 through the waterway. The water shortage float 3 is used to detect the water volume and issue an alarm (for example, by sound and light) to determine whether there is a water shortage. If there is a water shortage, an alarm is issued. The amount of water can be characterized by the water level.

[0030] The flow guide pipe 5 is located on one side of the water-deficient float 3, and includes a damping mechanism, which is used to reduce the water flow velocity by changing the direction of the water flow to prevent backflow impact. The flow guide pipe 5 also includes a flow guide cavity 51, a water inlet channel 52 and a water outlet 53, and the damping mechanism, the water inlet channel 52 and the water outlet 53 are all arranged in the flow guide cavity 51, and the water inlet channel 52, the damping mechanism and the water outlet 53 are connected in sequence, and the damping mechanism is between the water inlet channel 52 and the water outlet 53, that is, the water inlet channel 52 and the water outlet 53 are respectively located on both sides of the damping mechanism, and the water inlet channel 52 is located on the side of the flow guide pipe 5 close to the water-deficient float 3.

[0031] The slowing mechanism is arranged at the turning point of the guide cavity 51, and the slowing mechanism includes a plurality of guide baffles 54, each of which is arranged at intervals, and the guide baffles 54 are used to guide the flow direction of the water flow, and the guide baffles 54 are provided with guide recesses 541, and the guide recesses 541 are located on one side of the guide baffles 54, and the width of the guide recesses 541 is smaller than the width of the guide baffles 54, that is, the guide recesses 541 only occupy a part of the guide baffles 54, and are prohibited from occupying the entire guide baffles 54. The guide recesses 541 of two adjacent guide baffles 54 are staggered, that is, they are arranged on different sides, so as to play the role of making the water flow turn more significantly. The height of the guide water baffle plate 54 is the same as the depth of the groove in the guide cavity 51, that is, the top surface of the guide water baffle plate 54 is flush with the top surface of the guide cavity 51, and the height of the guide water baffle plate 54 is greater than the guide recess 541, and the guide recess 541 and the non-guide recess 541 part of the guide water baffle plate 54 form a step with a height difference.

[0032] The heating plate 9 is located in the middle of the lower cavity and is spaced apart from the bottom of the lower cavity. The heating plate 9 is used to heat the water flow in the lower cavity, that is, to heat the water flowing out of the guide tube 5, so as to evaporate part or all of the water flow to form water vapor. The steam hood 8 is covered on the heating plate 9. The steam hood 8 is provided with a through hole (not shown in the figure). The through hole is connected to the water mist channel 7. The water mist channel 7 is located directly above the through hole. The end of the water mist channel 7 away from the steam hood 8 is provided with a water mist outlet 6. The water mist outlet 6 is provided on the top plate of the box body 4 (not shown in the figure). The water mist outlet 6 runs through the top plate. After the water vapor passes through the steam hood 8 and the water mist channel 7 in turn, it is discharged from the water mist outlet 6. The flow direction is also the direction of the water mist.

[0033] In an optional embodiment, it also includes a fan 10, which is installed in the box body 4. The fan 10 is used to introduce air outside the box body 4 into the box body 4. The output end of the fan 10 is connected to the inlet of an air outlet channel (not shown in the figure), and the outlet of the air outlet channel is connected to the interior of the steam hood 8, so that air is introduced into the steam hood 8. The water vapor in the steam hood 8 is cooled by air with a lower temperature than itself to form water mist, and the water mist is then discharged through the water mist channel 7 and the water mist outlet 6, thereby discharging the water mist.

[0034] In an optional embodiment, a condensation water baffle 101 is also installed on the air outlet channel. The condensation water baffle 101 is vertically suspended on the water-blocking plate. The condensation water baffle 101 is located close to the outlet side to prevent the water vapor in the steam hood 8 from flowing back into the air outlet channel through the outlet, thereby only allowing it to flow back onto the heating plate 9 to avoid affecting the air outlet channel and the fan 10.

[0035] In an optional embodiment, a water retaining mechanism 16 and a baffle plate 15 are further installed in the waterway, and the water retaining mechanism 16 and the baffle plate 15 are respectively located on different sides of the water-deficient float 3. For example, the water retaining mechanism 16 is installed on the left side of the water-deficient float 3, and the baffle plate 15 is installed on the upper end of the water-deficient float 3, and the baffle plate 15 is an arc-shaped structure. The water retaining mechanism 16 and the baffle plate 15 prevent the water flow fluctuation from affecting the water-deficient float 3, and avoid the accuracy of the water-deficient float 3 in detecting whether there is water shortage.

[0036] In actual use, water is added to the box body 4 through the water inlet 14, which is arranged on the box body 4. Water flows into and is stored in the upper cavity of the box body 4. The water float 2 pushes the water push rod 13 of the water launch assembly 1, and a passage is formed between the water push rod 13 and the water stopper 11. Water flows into the water launch assembly 1 from the passage and flows out from the water launch assembly 1. The outflowing water flows into the lower cavity after passing through the guide pipe 5, and the heating plate 9 generates heat, thereby heating and evaporating the water in the lower cavity, evaporating to form water vapor, and the water vapor gathers in the steam cover 8 and meets the air flowing in from the air outlet channel to form water mist, which flows through the water mist channel 7 and is finally discharged from the water mist outlet 6, thereby discharging water mist with temperature (i.e., hot mist), completing humidification.

[0037] In the process of discharging water mist to complete humidification, the slowing mechanism on the guide tube 5 prevents the boiling water heated by the heating plate 9 from quickly impacting the side of the backflow concave water shortage float 3, so as to avoid the accuracy of the water shortage alarm of the water shortage float 3, which is to achieve the first aspect of preventing backflow. On the other hand, through the condensed water baffle 101, the water vapor in the steam hood 8 can only flow back to the cavity where the heating plate 9 is located, avoiding backflow to the air outlet channel or other places, and avoiding affecting the components in other parts.

[0038] The utility model can discharge hot mist to achieve the purpose of humidification, and can also realize backflow to the designated position and avoid high-speed impact backflow and interference with the water shortage alarm through the condensation water baffle 101 and the buffer mechanism during the humidification process, thereby ensuring the accuracy of the water shortage alarm and avoiding the impact of backflow on the components at related positions in the box 4.

[0039] The embodiment disclosed in this specification is only an example of the unilateral features of the utility model, and the protection scope of the utility model is not limited to this embodiment. Any other functionally equivalent embodiments fall within the protection scope of the utility model. For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A humidifier with anti-backflow function, characterized in that: It includes a box body, and a guide pipe, a heating plate, a steam cover, a water mist channel and a water mist outlet arranged in the cavity of the box body. The guide pipe includes a damping mechanism for changing the direction of water flow and reducing the flow velocity to prevent backflow impact. The heating plate is used to heat the water flowing out of the guide pipe to form water vapor. The steam hood is arranged above the heating plate and is connected to the water mist channel, and the water mist channel is connected to the water mist outlet. The water vapor can flow along the steam hood, the water mist channel and the water mist outlet in sequence, thereby discharging the water mist.

2. The anti-backflow humidifier according to claim 1, characterized in that: It also includes a launching assembly and a launching float. The launching assembly is linked to the launching float. The launching float is used to open and close the launching assembly under the action of external force. The output end of the launching assembly is connected to the guide pipe.

3. The anti-backflow humidifier according to claim 2, characterized in that: It also includes a water-blocking plate, through which the water-discharging assembly is installed in the cavity of the box body. The water-blocking plate is horizontally laid in the cavity of the box body. The water-blocking plate is in sealing contact with the inner wall of the box body to divide the cavity of the box body into two cavities, an upper cavity and a lower cavity, respectively. The water-discharging assembly, water-discharging float, guide pipe, and heating plate are all located in the lower cavity, and the steam hood and water mist channel are all located in the upper cavity.

4. The anti-backflow humidifier according to claim 3, characterized in that: The heating plate is located in the middle of the lower cavity and is spaced apart from the bottom of the lower cavity. The steam cover is covered on the heating plate. A through hole is provided on the steam cover, which is connected to the water mist channel. The water mist channel is located directly above the through hole. The water mist outlet is provided at one end of the water mist channel away from the steam cover. The water mist outlet is provided on the top plate of the box body, and the water mist outlet runs through the top plate.

5. The anti-backflow humidifier according to claim 4, characterized in that: The machine also includes a fan, which is installed in the box body and used to introduce air outside the box body into the box body. The output end of the fan is connected to the inlet of the air outlet channel, and the outlet of the air outlet channel is connected to the inside of the steam hood. A condensation water baffle is also installed on the air outlet channel. The condensation water baffle is vertically suspended on the water-blocking plate and is located on the side close to the outlet.

6. The anti-backflow humidifier according to claim 3, characterized in that: It also includes a water shortage float, which is used to detect whether there is a water shortage in the water path from the water discharge component to the water pipe.

7. The anti-backflow humidifier according to claim 6, characterized in that: The water shortage float is located at one side of the water discharge float and is spaced apart from the water discharge float. The water shortage float is located on the water path from the water discharge component to the water guide pipe, and the water shortage float is located in the lower cavity.

8. The anti-backflow humidifier according to claim 6, characterized in that: The guide tube also includes a guide cavity, a water inlet channel and a water outlet. The damping mechanism, the water inlet channel and the water outlet are all arranged in the guide cavity. The water inlet channel, the damping mechanism and the water outlet are connected in sequence. The damping mechanism is between the water inlet channel and the water outlet. The water inlet channel is located on the side of the guide tube close to the water-deficient float.

9. The anti-backflow humidifier according to claim 8, characterized in that: The damping mechanism is arranged at the turning point of the guide cavity, and the damping mechanism includes a plurality of guide water baffles, each of which is arranged at intervals, and the guide water baffles are used to guide the flow direction of the water flow. The guide water baffle is provided with a guide recess, and the guide recess is located on one side of the guide water baffle. The width of the guide recess is smaller than the width of the guide water baffle, and the guide recesses of two adjacent guide water baffles are staggered, and the height of the guide water baffle is greater than the guide recess.

10. The anti-backflow humidifier according to claim 9, characterized in that: The height of the guide water baffle is the same as the depth of the groove in the guide cavity.

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