JP3233753U - Water replenishment control mechanism and a humidifier using the water replenishment control mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water replenishment control mechanism having an excellent water leakage prevention effect and a humidifier.
A tank 1 provided with a water discharge hole 2 and an atomization chamber 3 located below the water discharge hole are included. A valve core 4 is attached to the water discharge hole, and a water stop member 5 is provided on the valve core. The water replenishment control mechanism is provided with an elastic restoration member 6 that controls the movement of the valve core. A lever 8 is mounted below the tank via a first horizontal rotation shaft. One end of the lever is the control end and is connected to the valve core, and the other end is the free end. A water level control lever 10 is mounted in the atomization chamber via a second horizontal rotation shaft. One end of the water level control lever is the refilling push-up rod end 101, and the other end is the float end. The water level control lever is located below the lever and exerts an acting force on the valve core.
[Selection diagram] Fig. 1

Description

The present invention belongs to the technical field of household electric appliances, and specifically relates to a water replenishment control mechanism and a humidifier using the water replenishment control mechanism.

Atomizers are used in household appliances such as humidifiers, atomizers, aroma diffusers, and atomizers. Therefore, it is necessary to maintain the water level in the atomizer within a predetermined range by controlling the water replenishment operation to the atomizer by the water replenishment control mechanism installed between the tank and the atomizer. Currently, the most common structure of refill control mechanisms includes a vertical valve core that is operably inserted into the spout. A water stop member is provided at the tip of the valve core, and the water stop member is located above the water discharge hole. Further, a spring is arranged on the valve core, and the elastic force of the spring pulls the valve core downward. As a result, the water stop member is firmly pressed against the upper surface of the water discharge hole to close the water discharge hole. When the water level of the atomizer falls below a predetermined water level, the float in the atomizer pushes the valve core upward, so that the water stop member separates from the water discharge hole and starts the water replenishment operation. However, the above water replenishment control mechanism has the following drawbacks. That is, since the valve core is pulled downward only by the spring to close the water discharge hole, the elastic force applied is not sufficient. Therefore, it is easy for the blockage to fail due to the accumulation of foreign matter in the water discharge hole, the assembly tolerance of the mechanism, the fatigue of the spring, etc., and a situation occurs in which water constantly leaks from the tank to the atomizer.

A spring with a stronger elastic force can reduce the probability of water leakage, but a spring with a stronger elastic force makes it difficult for the float to lift the valve core upward against the elastic force of the spring, resulting in normal water replenishment operation. It will hinder you.

An object of the present invention is to provide a water replenishment control mechanism having an excellent water leakage prevention effect and a humidifier using the water replenishment control mechanism.

The water replenishment control mechanism of the present invention includes a tank provided with a water discharge hole and an atomization chamber located below the water discharge hole. A valve core is attached to the water discharge hole, and a water stop member is provided on the valve core. The water replenishment control mechanism is provided with an elastic restoration member that controls the movement of the valve core in order to close the water discharge hole with the water stop member. Importantly, a lever is mounted below the tank via a first horizontal rotation shaft. One end of the lever is a control end and is connected to the valve core. The other end of the lever is a free end. A water level control lever is mounted in the atomization chamber via a second horizontal rotation shaft. One end of the water level control lever is the end of the refilling push-up rod, and the other end is the float end. The water level control lever is located below the lever and exerts an acting force on the valve core through or directly from the lever. The water stop member is separated from the water discharge hole by the acting force applied to the valve core by moving the end of the water replenishment push-up rod upward. Further, the water stop member closes the water discharge hole by the acting force applied to the valve core by the float end moving upward and the acting force applied to the valve core by the elastic restoring member.

The operating principle of the water replenishment control mechanism is as follows.

The lever, valve core, valve body, and elastic restoration member of the water replenishment control mechanism are all mounted on the tank, and the water level control lever is mounted in the atomization chamber. At the time of use, the tank is placed above the atomization chamber, and the height of the float end of the water level control lever changes as the water level in the atomization chamber changes. When the water level in the atomization chamber falls below a predetermined water level, the height of the float end decreases. Then, the lever structure of the water level control lever lifts the other end of the water level control lever, that is, the end of the refilling push-up rod upward. At this time, since the acting force applied to the valve core by the end of the refilling push-up rod is larger than the acting force applied to the valve core by the elastic restoring member, the water blocking member is separated from the water discharge hole. Then, the water in the tank flows into the atomization chamber through the spout hole, and the water level in the atomization chamber gradually rises by performing a water replenishment operation on the atomization chamber. As the water level in the atomization chamber rises, the height of the float end of the water level control lever continues to rise, and the height of the water replenishment push-up rod end gradually decreases. As a result, the water stop member closes the water discharge hole by the acting force applied to the valve core by moving the float end upward and the acting force applied to the valve core by the elastic restoring member, and the water replenishment operation is stopped.

If the spout hole is not tightly closed due to various causes, water will continue to leak from the tank into the atomization chamber. In this case, the height of the float end of the water level control lever continues to rise as the water level rises, and the acting force applied to the valve core also continues to increase. As a result, the pressure of the water stop member with respect to the water discharge hole also continues to increase, and the degree of sealing between the water stop member and the water discharge hole is improved, so that the continuation of water leakage is reduced or avoided.

When the tank is removed from the atomization chamber, the contact between the water level control lever and the valve core and lever is released. At this time, the valve core moves by the acting force of the elastic restoring member, and the water stop member closes the water discharge hole, so that the situation where the water in the tank flows out from the water discharge hole is avoided.

The water replenishment control mechanism has the following specific structures.

1. 1. The water stop member is located below the water discharge hole. The elastic restoring member is located between the free end of the lever and the bottom wall of the tank, and applies a downward elastic force to the free end of the lever. The end of the rehydration push-up rod of the water level control lever is located below the free end of the lever, and the float end of the water level control lever is located below the valve core or the control end of the lever.

When the water level in the atomization chamber falls below a predetermined water level, the height of the float end decreases. Then, the lever structure of the water level control lever lifts the other end of the water level control lever, that is, the end of the refilling push-up rod upward. At this time, the end of the refilling push-up rod applies an upward acting force to the free end of the lever. The acting force is larger than the downward elastic force applied to the free end of the lever by the elastic restoring member. Therefore, the free end of the lever moves upward, and the valve core moves downward by the lever, so that the water stop member is separated from the water discharge hole. Then, the water in the tank flows into the atomization chamber through the spout hole, and the water level in the atomization chamber gradually rises by performing a water replenishment operation on the atomization chamber. As the water level in the atomization chamber rises, so does the height of the float end of the water level control lever. As a result, the height of the end of the refilling push-up rod gradually decreases, so that the free end of the lever cannot obtain an upward acting force from the end of the refilling push-up rod. On the contrary, the float end moves upward and pushes up the control end of the lever. At the same time, the elastic restoring member utilizes the action of the lever to apply an upward acting force to the control end of the lever. When the acting forces of both the float end and the elastic restoration member are combined and the valve core moves upward, the water stop member closes the water discharge hole and stops the water replenishment operation.

If the spout hole is not tightly closed due to various causes, water will continue to leak from the tank into the atomization chamber. In this case, the height of the float end of the water level control lever continues to rise as the water level rises, and the upward acting force applied to the valve core also continues to increase. As a result, the pressure of the water stop member with respect to the water discharge hole also continues to increase, and the degree of sealing between the water stop member and the water discharge hole is improved, so that the continuation of water leakage is reduced or avoided.

In addition, since the water stop member is installed below the water discharge hole, the water flow pushes out foreign matter such as dust in the water stop member part during the water replenishment process. This reduces the risk of water leakage caused by the presence of foreign matter on the surface of the water blocking member.

Further, a through hole is provided at the control end of the lever, and the water blocking member is an elastic member inserted into the through hole. Of the water stop members, a water stop plate is provided above the through hole, and a tightening plate is provided below the through hole. By tightening the lever between the tightening plate and the water stop plate, a fixed connection between the water stop member and the lever is realized. Above and below the through hole of the water stop member, a portion larger than the cross section of the through hole is provided, whereby the water stop member and the lever are fixedly connected.

Further, the free end of the lever is provided with a protruding pillar protruding upward, and the bottom wall of the tank is provided with a protruding pillar protruding downward. The elastic restoring member is a spring whose both ends are arranged on the free end of the lever and the protruding column on the bottom wall of the tank, respectively. The bottom end of the spring is in contact with the free end of the lever and the top end of the spring is in contact with the bottom wall of the tank. In the compressed state, the spring applies a downward elastic force to the free end of the lever, thereby applying an upward restoring elastic force to the valve core via the lever. The two protruding columns can avoid the deviation of the spring by restricting the position of the spring.

Further, at the float end of the water level control lever, a push-up pillar protruding upward is provided in order to shorten the distance between the float end and the free end of the lever.

2. The water stop member is located above the water discharge hole. The elastic restoring member is located between the free end of the lever and the bottom wall of the tank, and applies an upward elastic force to the free end of the lever. The end of the rehydration push-up rod of the water level control lever is located below the control end of the valve core or the lever, and the float end of the water level control lever is located below the free end of the lever.

When the water level in the atomization chamber falls below a predetermined water level, the height of the float end decreases, the float end and the free end of the lever do not come into contact with each other, and an upward pushing force cannot be applied to the free end of the lever. Then, the float end uses the lever structure of the water level control lever to push up the other end of the water level control lever, that is, the end of the refilling push-up rod. At this time, the upward acting force applied to the valve core by the end of the refilling push-up rod is larger than the downward elastic force applied to the valve core by the elastic restoring member through the lever. Therefore, the valve core moves upward and separates the water stop member from the water discharge hole. Then, the water in the tank flows into the atomization chamber through the spout hole, and the water level in the atomization chamber gradually rises by performing a water replenishment operation on the atomization chamber. As the water level in the atomization chamber rises, so does the height of the float end of the water level control lever. As a result, the height of the end of the refilling push-up rod gradually decreases, so that the valve core cannot obtain an upward acting force from the end of the refilling push-up rod. Conversely, the float end moves upwards, pushing the free end of the lever upwards. In addition, the downward acting force applied to the valve core by the elastic restoring member is combined, and the control end of the lever moves downward by the action of the lever. As a result, a downward acting force is applied to the valve core. Then, the valve core moves downward due to the acting force, so that the water stop member closes the water discharge hole and stops the water replenishment operation.

If the spout hole is not tightly closed due to various causes, water will continue to leak from the tank into the atomization chamber. In this case, the height of the float end of the water level control lever continues to rise as the water level rises, and the downward acting force applied from the lever to the valve core also continues to increase. As a result, the pressure of the water stop member with respect to the water discharge hole also continues to increase, and the degree of sealing between the water stop member and the water discharge hole is improved, so that the continuation of water leakage is reduced or avoided.

Specifically, the elastic restoring member is a spring connected to the free end of the lever and the bottom wall of the tank. When the spring is in the extended state, it applies an upward restoring elastic force to the free end of the lever. Since the free end of the lever and the bottom wall of the tank are designed with appropriate hooks, it is possible to engage both ends of the spring with the free end of the lever and the bottom wall of the tank.

Further, a through hole is provided at the control end of the lever, and the lower portion of the valve core is inserted into the through hole. Further, at the bottom end of the valve core, a dropout prevention portion having a contour larger than the contour of the through hole is provided. When the control end of the lever moves downward, the valve core moves downward in synchronization with the dropout prevention portion, so that the water discharge hole is closed by the water blocking member. Further, the contour of the through hole may be designed to be larger than the contour of the cross section of the valve core. By doing so, when the valve core moves up and down, it does not occur that the valve core collides with the side wall of the through hole and the movement of the valve core is delayed.

3. 3. The bottom wall of the tank is provided with a penetrating cylinder that projects downward. A valve body fixing cylinder is detachably attached to the lower part of the penetrating cylinder, and the penetrating cylinder and the valve body fixing cylinder are connected in a sealed manner. The valve body fixing cylinder has a tubular structure with an open upper end, and a water discharge hole of the tank is provided on the bottom wall of the valve body fixing cylinder. The valve body fixing cylinder is designed to be removable. Therefore, the user can periodically remove the valve body fixing cylinder from the tank and clean the water discharge hole in order to reduce the risk of water leakage due to the presence of foreign matter in the water discharge hole. In addition, since the water discharge hole is designed to be a member having a small volume called a valve body fixing cylinder, it is advantageous for improving manufacturing accuracy and easy to inspect. This eliminates the sealing failure caused by the dimensional tolerances of the water discharge hole, the water stop member, and the valve core.

Further, the water blocking member is located above the water discharge hole. The bottom wall of the tank is integrally provided with a filter cylinder that separates the inside of the tank from the water discharge hole, or is detachably attached. The filter cylinder has a tubular structure with an open bottom end. The elastic restoring member is located between the upper wall of the filter cylinder and the valve core, and applies a downward elastic force to the valve core. The end of the rehydration push-up rod of the water level control lever is located below the control end of the valve core or the lever, and the float end of the water level control lever is located below the free end of the lever.

When the water level in the atomization chamber falls below a predetermined water level, the height of the float end decreases, the float end and the free end of the lever do not come into contact with each other, and an upward pushing force cannot be applied to the free end of the lever. Then, the float end uses the lever structure of the water level control lever to push up the other end of the water level control lever, that is, the end of the refilling push-up rod. At this time, the upward acting force applied to the valve core by the end of the refilling push-up rod is larger than the downward elastic force applied to the valve core by the elastic restoring member. Therefore, the valve core moves upward and separates the water stop member from the water discharge hole. Then, the water in the tank flows into the atomization chamber through the spout hole, and the water level in the atomization chamber gradually rises by performing a water replenishment operation on the atomization chamber. As the water level in the atomization chamber rises, so does the height of the float end of the water level control lever. As a result, the height of the end of the refilling push-up rod gradually decreases, so that the valve core cannot obtain an upward acting force from the end of the refilling push-up rod. Conversely, the float end moves upwards, pushing the free end of the lever upwards. Then, the control end of the lever moves downward due to the action of the lever, so that a downward acting force is applied to the valve core. Then, the downward acting force applied to the valve core from the elastic restoring member is combined with the acting force, and the valve core moves downward, so that the water stop member closes the water discharge hole and stops the water replenishment operation.

If the spout hole is not tightly closed due to various causes, water will continue to leak from the tank into the atomization chamber. In this case, the height of the float end of the water level control lever continues to rise as the water level rises, and the downward acting force applied to the valve core also continues to increase. As a result, the pressure of the water stop member with respect to the water discharge hole also continues to increase, and the degree of sealing between the water stop member and the water discharge hole is improved, so that the continuation of water leakage is reduced or avoided.

Since the filter net can filter the water flowing from the tank to the atomization chamber, it is possible to avoid a situation in which foreign matter in the water flows into the spout hole and interferes with the sealing effect.

Further, the filter cylinder is mounted above the valve body fixing cylinder by screw connection with the valve body fixing cylinder. Further, the bottom end of the filter net and the bottom wall of the valve body fixing cylinder are connected in a sealed manner. Since the filter cylinder is detachably attached to the valve body fixing cylinder, it is possible to remove the filter cylinder and clean or replace the filter net after using the filter cylinder for a certain period of time. As a result, the filtration effect is improved and the water quality condition in the tank is improved. Needless to say, by installing some upward protruding pillars on the bottom wall of the tank and attaching the filter cylinder to the protruding pillar by the tightening method, the filter cylinder can be detachably attached to the bottom wall of the tank. You may achieve the purpose.

Further, the peripheral region of the water discharge hole has a planar structure, and the water stop member has an elastic flat plate structure covering the peripheral region of the water discharge hole. Due to the acting force of the float, the water blocking member is firmly pressed downward against the area surrounding the water discharge hole. As a result, a surface sealing structure is formed between the water blocking member and the peripheral region of the water discharge hole, so that the sealing effect is significantly enhanced and water leakage is avoided.

Since the humidifier provided by the present invention controls the water replenishment operation of the tank and the atomization chamber by using the above water replenishment control mechanism, a good water leakage prevention effect can be obtained.

The water replenishment control mechanism of the present invention not only controls the water replenishment operation by the float and the elastic restoration member, but also increases the pressure of the water stop member with respect to the water discharge hole by the float when the water level in the atomization chamber is too high. You can also do it. As a result, the sealing performance of the water blocking member with respect to the water discharge hole is improved, and continuous water leakage from the tank is avoided. As a result of actual verification, the above-mentioned water replenishment control mechanism has a good water leakage prevention effect, and is very suitable for use in electric equipment such as a humidifier.

FIG. 1 is a diagram showing a structure of a water replenishment control mechanism according to the first embodiment. FIG. 2 is an exploded view of a partial structure of the water replenishment control mechanism according to the first embodiment. FIG. 3 is a diagram showing the structure of the water replenishment control mechanism according to the second embodiment. FIG. 4 is an exploded view of a partial structure of the water replenishment control mechanism according to the second embodiment. FIG. 5 is a diagram showing the structure of the water replenishment control mechanism in the third embodiment. FIG. 6 is an exploded view of a partial structure of the water replenishment control mechanism according to the third embodiment. FIG. 7 is a diagram showing the assembly of the filter holder and the valve body fixing cylinder in the third embodiment. FIG. 8 is a diagram showing the structure of the water replenishment control mechanism in the fourth embodiment. FIG. 9 is an exploded view of a partial structure of the water replenishment control mechanism according to the fourth embodiment.

Hereinafter, with reference to the drawings, through the description of the examples, the shape and structure of each member, the position and connection relationship between the parts, the operation and the operating principle of each part, etc. according to the specific embodiment of the present invention will be further described. This will be described in detail.

In this embodiment, a water replenishment control mechanism having an excellent water leakage prevention effect and a humidifier using the water replenishment control mechanism are provided.

As shown in FIGS. 1 and 2, the water replenishment control mechanism of this embodiment includes a tank 1 provided with a water discharge hole 2 and an atomization chamber 3 located below the water discharge hole 2. A valve core 4 is mounted on the water discharge hole 2, and the valve core 4 is provided with a water stop member 5 made of a silicone material. The water replenishment control mechanism is provided with an elastic restoration member 6 that controls the movement of the valve core 4 in order to close the water discharge hole 2 with the water stop member 5. A lever 8 is mounted below the tank 1 via a first horizontal rotation shaft 7. One end of the lever 8 is a control end 81, which is connected to the valve core 4. Further, the other end of the lever 8 is a free end 82. A water level control lever 10 is mounted in the atomization chamber 3 via a second horizontal rotation shaft 9 on the holder 16. The water level control lever 10 has a water replenishment push-up rod end 101 at one end and a float end 102 at the other end. The water level control lever 10 is located below the lever 8 and is substantially parallel to the lever 8. Specifically, the rehydration push-up rod end 101 of the water level control lever 10 is located below the free end 82 of the lever, and the float end 102 of the water level control lever 10 is located below the control end 81 of the lever.

The water level control lever 10 exerts an acting force on the valve core 4 through the lever 8 or directly. The water stop member 5 is separated from the water discharge hole 2 by the acting force applied to the valve core 4 by moving the water replenishment push-up rod end 101 upward. Further, the water stop member 5 closes the water discharge hole 2 by the acting force applied to the valve core 4 by the float end 102 moving upward and the acting force applied to the valve core 4 by the elastic restoring member 6.

In this embodiment, the valve core 4 and the water blocking member 5 have an integral structure. The water stop member 5 is located below the water discharge hole 2. A through hole is provided at the control end 81 of the lever 8, and the water blocking member 5 is an elastic member inserted into the through hole. Of the water stop member 5, a water stop plate 51 is provided above the through hole, and a tightening plate 52 is provided below the through hole. By tightening the lever 8 between the tightening plate 52 and the water stop plate 51, a fixed connection between the water stop member 5 and the lever 8 is realized. The water discharge hole 2 has a ring-shaped wall-like structure protruding downward, and has a narrow bottom end. The water stop plate 51 closes the water discharge hole 2 when the upper surface contacts the water discharge hole 2.

The free end 82 of the lever is provided with a protruding pillar protruding upward, and the bottom wall of the tank 1 is provided with a protruding pillar protruding downward. The elastic restoring member 6 is a spring whose both ends are arranged on a free end 82 of a lever and a protruding column on the bottom wall of the tank 1, respectively. The bottom end of the spring is in contact with the free end 82 of the lever, and the top end of the spring is in contact with the bottom wall of the tank 1. In the compressed state, the spring applies a downward elastic force to the free end 82 of the lever 8 to apply an upward restoring elastic force to the valve core 4 via the lever 8.

The float end 102 of the water level control lever 10 is provided with a push-up pillar 103 protruding upward in order to shorten the distance between the float end 102 and the free end 82 of the lever.

When the water level in the atomization chamber 3 falls below a predetermined water level, the height of the float end 102 decreases. Then, the other end of the water level control lever 10, that is, the water replenishment push-up rod end 101 is lifted upward by the lever structure of the water level control lever 10. At this time, the refilling push-up rod end 101 applies an upward acting force to the free end 82 of the lever 8. The acting force is larger than the downward elastic force applied to the free end 82 of the lever by the elastic restoring member 6. Therefore, the free end 82 of the lever moves upward, and the valve core 4 moves downward by the lever 8, so that the water stop member 5 is separated from the water discharge hole 2. Then, the water in the tank 1 flows into the atomization chamber 3 via the water discharge hole 2, and the water level in the atomization chamber 3 gradually rises by performing a water replenishment operation on the atomization chamber 3. As the water level in the atomization chamber 3 rises, the height of the float end 102 of the water level control lever 10 also continues to rise. As a result, the height of the refilling push-up rod end 101 gradually decreases, so that the free end 82 of the lever cannot obtain an upward acting force from the refilling push-up rod end 101. On the contrary, the float end 102 moves upward and pushes up the control end 81 of the lever 8. At the same time, the elastic restoring member 6 applies an upward acting force to the control end 81 of the lever by utilizing the action of the lever 8. When the acting forces of both the float end 102 and the elastic restoration member 6 are combined and the valve core 4 moves upward, the water stop member 5 closes the water discharge hole 2 and stops the water replenishment operation.

If the water discharge hole 2 is not firmly closed due to various causes, water continues to leak from the tank 1 into the atomization chamber 3. In this case, the height of the float end 102 of the water level control lever 10 continues to rise as the water level rises, and the upward acting force applied to the valve core 4 also continues to increase. As a result, the pressure of the water stop member 5 with respect to the water discharge hole 2 also continues to increase, and the degree of sealing between the water stop member 5 and the water discharge hole 2 is improved, so that the continuation of water leakage is reduced or avoided.

When the tank 1 is removed from the atomization chamber 3, the contact between the water level control lever 10 and the valve core 4 and the lever 8 is released. At this time, the valve core 4 moves by the acting force of the elastic restoration member 6, and the water stop member 5 closes the water discharge hole 2, so that the situation where the water in the tank 1 flows out from the water discharge hole 2 is avoided.

In addition, since the water stop member 5 is installed below the water discharge hole 2, the water flow pushes out foreign matter such as dust in the water stop member 5 portion during the water replenishment process. As a result, the risk of water leakage caused by the presence of foreign matter on the surface of the water blocking member 5 is reduced.

As shown in FIGS. 3 and 4, the water replenishment control mechanism of this embodiment includes a tank 1 provided with a water discharge hole 2 and an atomization chamber 3 located below the water discharge hole 2. A valve core 4 is mounted on the water discharge hole 2, and a water stop member 5 is provided on the valve core 4. The water replenishment control mechanism is provided with an elastic restoration member 6 that controls the movement of the valve core 4 in order to close the water discharge hole 2 with the water stop member 5. A lever 8 is mounted below the tank 1 via a first horizontal rotation shaft 7. One end of the lever 8 is a control end 81, which is connected to the valve core 4. Further, the other end of the lever 8 is a free end 82. A water level control lever 10 is mounted in the atomization chamber 3 via a second horizontal rotation shaft 9 on the holder 16. The water level control lever 10 has a water replenishment push-up rod end 101 at one end and a float end 102 at the other end. The water level control lever 10 is located below the lever 8 and is substantially parallel to the lever 8. Specifically, the rehydration push-up rod end 101 of the water level control lever 10 is located below the valve core 4, and the float end 102 of the water level control lever 10 is located below the free end 82 of the lever.

The water level control lever 10 exerts an acting force on the valve core 4 through the lever 8 or directly. The water stop member 5 is separated from the water discharge hole 2 by the acting force applied to the valve core 4 by moving the water replenishment push-up rod end 101 upward. Further, the water stop member 5 closes the water discharge hole 2 by the acting force applied to the valve core 4 by the float end 102 moving upward and the acting force applied to the valve core 4 by the elastic restoring member 6.

In this embodiment, the water stop member 5 is located above the water discharge hole 2. The water stop member 5 is an umbrella-shaped water stop member used in a conventional humidifier, and is fixed to the upper end of the valve core 4. The elastic restoring member 6 is a spring connected to the free end 82 of the lever and the bottom wall of the tank 1. When the spring is in the extended state, it applies an upward restoring elastic force to the free end 82 of the lever. Since hooks are designed on the free end 82 of the lever and the bottom wall of the tank 1, both ends of the spring can be engaged with the free end 82 of the lever and the bottom wall of the tank 1.

A through hole is provided at the control end 81 of the lever 8, and the lower portion of the valve core 4 is inserted into the through hole. Further, at the bottom end of the valve core 4, a dropout prevention portion 41 having a contour larger than the contour of the through hole is provided. When the control end 81 of the lever moves downward, the valve core 4 moves downward in synchronization with the dropout prevention portion 41, so that the water discharge hole 2 is closed by the water stop member 5. Further, the contour of the through hole may be designed to be larger than the contour of the cross section of the valve core 4. By doing so, when the valve core 4 moves up and down, the situation that the valve core 4 collides with the side wall of the through hole and the movement of the valve core 4 is delayed does not occur.

When the water level in the atomization chamber 3 falls below a predetermined water level, the height of the float end 102 decreases, the float end 102 and the free end 82 of the lever do not come into contact with each other, and an upward pushing force is applied to the free end 82 of the lever. Can no longer be granted. Then, the float end 102 uses the lever structure of the water level control lever 10 to push up the other end of the water level control lever 10, that is, the refilling push-up rod end 101 upward. At this time, the upward acting force applied to the valve core 4 by the refilling push-up rod end 101 is larger than the downward elastic force applied to the valve core 4 by the elastic restoring member 6 through the lever 8. Therefore, the valve core 4 moves upward to separate the water stop member 5 from the water discharge hole 2. Then, the water in the tank 1 flows into the atomization chamber 3 via the water discharge hole 2, and the water level in the atomization chamber 3 gradually rises by performing a water replenishment operation on the atomization chamber 3. As the water level in the atomization chamber 3 rises, the height of the float end 102 of the water level control lever 10 also continues to rise. As a result, the height of the refilling push-up rod end 101 gradually decreases, so that the valve core 4 cannot obtain an upward acting force from the refilling push-up rod end 101. On the contrary, the float end 102 moves upward and pushes up the free end 82 of the lever 8. Further, the downward acting force applied to the valve core 4 by the elastic restoring member 6 is combined, and the control end 81 of the lever moves downward by the action of the lever 8. As a result, a downward acting force is applied to the valve core 4. Then, the valve core 4 moves downward due to the acting force, so that the water stop member 5 closes the water discharge hole 2 and stops the water replenishment operation.

When the tank 1 is removed from the atomization chamber 3, the contact between the water level control lever 10 and the valve core 4 and the lever 8 is released. At this time, the valve core 4 moves by the acting force of the elastic restoration member 6, and the water stop member 5 closes the water discharge hole 2, so that the situation where the water in the tank 1 flows out from the water discharge hole 2 is avoided.

If the water discharge hole 2 is not firmly closed due to various causes, water continues to leak from the tank 1 into the atomization chamber 3. In this case, the height of the float end 102 of the water level control lever 10 continues to rise as the water level rises, and the downward acting force applied from the lever 8 to the valve core 4 also continues to increase. As a result, the pressure of the water stop member 5 with respect to the water discharge hole 2 also continues to increase, and the degree of sealing between the water stop member 5 and the water discharge hole 2 is improved, so that the continuation of water leakage is reduced or avoided.

As shown in FIGS. 5, 6 and 7, the water replenishment control mechanism of this embodiment includes a tank 1 provided with a water discharge hole 2 and an atomization chamber 3 located below the water discharge hole 2. A valve core 4 is mounted on the water discharge hole 2, and a water stop member 5 is provided on the valve core 4. The water replenishment control mechanism is provided with an elastic restoration member 6 that controls the movement of the valve core 4 in order to close the water discharge hole 2 with the water stop member 5. A lever 8 is mounted below the tank 1 via a first horizontal rotation shaft 7. One end of the lever 8 is a control end 81, which is connected to the valve core 4. Further, the other end of the lever 8 is a free end 82. A water level control lever 10 is mounted in the atomization chamber 3 via a second horizontal rotation shaft 9 on the holder 16. The water level control lever 10 has a water replenishment push-up rod end 101 at one end and a float end 102 at the other end. The water level control lever 10 is located below the lever 8 and is substantially parallel to the lever 8. Specifically, the rehydration push-up rod end 101 of the water level control lever 10 is located below the valve core 4, and the float end 102 of the water level control lever 10 is located below the free end 82 of the lever.

A penetrating cylinder 11 projecting downward is provided on the bottom wall of the tank 1. A valve body fixing cylinder 15 is detachably mounted below the penetrating cylinder 11 by a screw coupling method. Moreover, the penetrating cylinder 11 and the valve body fixing cylinder 15 are connected in a sealed manner. Further, above the valve body fixing cylinder 15, a filter cylinder that separates the inside of the tank 1 and the water discharge hole 2 is detachably mounted. The filter cylinder includes a filter holder 12 and a filter net 13. The filter holder 12 has a tubular structure with an open bottom end. The filter holder 12 is detachably mounted above the valve body fixing cylinder 15 by being connected to the female screw of the valve body fixing cylinder 15 via a male screw on the outer wall. Further, in order to improve the sealing property between the penetrating cylinder 11 and the valve body fixing cylinder 15, an annular packing 17 is provided in the portion. Further, water passage slits are provided at intervals on the side wall of the filter holder 12. An annular groove having an opening facing downward is provided inside the filter holder 12, and the filter net 13 is attached to the annular groove of the filter holder 12. The bottom end of the filter net 13 is connected to the bottom wall of the valve body fixing cylinder 15. The bottom end of the filter net 13 and the bottom wall of the valve body fixing cylinder 15 are provided so that the water in the tank 1 does not flow into the water discharge hole 2 through the gap between the bottom end of the filter net 13 and the bottom wall of the valve body fixing cylinder 15. An annular packing 14 is provided between them. As a result, the bottom end of the filter net 13 and the bottom wall of the valve body fixing cylinder 15 are connected in a sealed manner.

The valve body fixing cylinder 15 has a tubular structure with an open upper end, and a water discharge hole 2 of the tank 1 is provided on the bottom wall of the valve body fixing cylinder 15. The bottom end of the filter cylinder and the valve body fixing cylinder 15 are designed to be removable. Therefore, the user can periodically remove the valve body fixing cylinder 15 from the tank 1 and clean the water discharge hole 2 in order to reduce the risk of water leakage due to the presence of foreign matter in the water discharge hole 2. In addition, since the water discharge hole 2 is designed to be a member having a small volume called a valve body fixing cylinder 15, it is advantageous for improving manufacturing accuracy and easy to inspect. As a result, the sealing defect caused by the dimensional tolerances of the water discharge hole 2, the water stop member 5, and the valve core 4 is eliminated.

The valve core 4 is inserted into the water discharge hole 2. Further, the water stop member 5 at the upper end of the valve core 4 is located above the water discharge hole 2. The elastic restoring member 6 is a spring located between the upper wall of the filter cylinder and the valve core 4, and applies a downward elastic force to the valve core 4. In order to avoid deviation of the spring, projecting columns facing each other are provided on the upper end of the valve core 4 and the upper wall of the filter holder 12, and both ends of the spring are arranged on the two projecting columns.

A through hole is provided at the control end 81 of the lever 8, and the lower portion of the valve core 4 is inserted into the through hole. Further, at the bottom end of the valve core 4, a dropout prevention portion 41 having a contour larger than the contour of the through hole is provided. When the control end 81 of the lever moves downward, the valve core 4 moves downward in synchronization with the dropout prevention portion 41, so that the water discharge hole 2 is closed by the water stop member 5. Further, the contour of the through hole may be designed to be larger than the contour of the cross section of the valve core 4. By doing so, when the valve core 4 moves up and down, the situation that the valve core 4 collides with the side wall of the through hole and the movement of the valve core 4 is delayed does not occur.

When the water level in the atomization chamber 3 falls below a predetermined water level, the height of the float end 102 decreases, the float end 102 and the free end 82 of the lever do not come into contact with each other, and an upward pushing force is applied to the free end 82 of the lever. Can no longer be granted. Then, the float end 102 uses the lever structure of the water level control lever 10 to push up the other end of the water level control lever 10, that is, the refilling push-up rod end 101 upward. At this time, the upward acting force applied to the valve core 4 by the refilling push-up rod end 101 is larger than the downward elastic force applied to the valve core 4 by the elastic restoring member 6. Therefore, the valve core 4 moves upward to separate the water stop member 5 from the water discharge hole 2. Then, the water in the tank 1 flows into the atomization chamber 3 via the water discharge hole 2, and the water level in the atomization chamber 3 gradually rises by performing a water replenishment operation on the atomization chamber 3. As the water level in the atomization chamber 3 rises, the height of the float end 102 of the water level control lever 10 also continues to rise. As a result, the height of the refilling push-up rod end 101 gradually decreases, so that the valve core 4 cannot obtain an upward acting force from the refilling push-up rod end 101. On the contrary, the float end 102 moves upward and pushes up the free end 82 of the lever 8. Then, the control end 81 of the lever moves downward due to the action of the lever 8, so that a downward acting force is applied to the valve core 4. Then, the downward acting force applied from the elastic restoring member 6 to the valve core 4 is combined with the acting force, and the valve core 4 moves downward, so that the water stop member 5 closes the water discharge hole 2 and performs the water replenishment operation. Stop.

When the tank 1 is removed from the atomization chamber 3, the contact between the water level control lever 10 and the valve core 4 and the lever 8 is released. At this time, the valve core 4 moves by the acting force of the elastic restoration member 6, and the water stop member 5 closes the water discharge hole 2, so that the situation where the water in the tank 1 flows out from the water discharge hole 2 is avoided.

If the water discharge hole 2 is not firmly closed due to various causes, water continues to leak from the tank 1 into the atomization chamber 3. In this case, the height of the float end 102 of the water level control lever 10 continues to rise as the water level rises, and the downward acting force applied to the valve core 4 also continues to increase. As a result, the pressure of the water stop member 5 with respect to the water discharge hole 2 also continues to increase, and the degree of sealing between the water stop member 5 and the water discharge hole 2 is improved, so that the continuation of water leakage is reduced or avoided. In this embodiment, the peripheral region of the water discharge hole 2 has a planar structure. Further, the water blocking member 5 has an elastic flat plate structure that covers the peripheral region of the water discharge hole. Above the water stop member 5 of the valve core 4, a circular pressing plate similar to the contour of the water stop member 5 is provided. The acting force of the water level control lever 10, the pressure of the water in the tank 1, and the acting force of the elastic restoring member 6 interact with each other, so that the water blocking member 5 is firmly pressed downward against the peripheral region of the water discharge hole 2. .. As a result, a surface sealing structure is formed between the water blocking member 5 and the peripheral region of the water discharge hole 2, so that the sealing effect is significantly enhanced and water leakage is avoided.

Since the filter net 13 in the filter cylinder can filter the water flowing from the tank 1 to the atomization chamber 3, it is possible to avoid a situation in which foreign matter in the water flows into the water discharge hole 2 and interferes with the sealing effect.

As shown in FIGS. 8 and 9, unlike the third embodiment, the filter holder 12 in the present embodiment is integrally formed on the bottom wall of the tank. As a result, the mold required for the filter holder 12 can be omitted, resulting in cost reduction. Since the other structures in this embodiment are the same as those in the third embodiment, they will not be described in detail here.

In this embodiment, a humidifier that prevents water leakage is provided. By using the water replenishment control mechanism in any of the above embodiments, the humidifier controls the water replenishment operation of the tank and the atomization chamber, so that a good water leakage prevention effect can be obtained. Needless to say, the water replenishment control mechanism can be applied to household electric appliances such as a sprayer, an aroma diffuser, and an atomizer that require a water replenishment control operation, but will not be described in detail here.

In the above, the present invention has been exemplified by combining the drawings. Needless to say, the specific design of the present invention is not limited to the above-mentioned form, and various improvements without substantiveness made by using the concept and the technical plan of the present invention, or without improving the concept and the technical plan of the present invention. Any case where it is applied as it is to other scenes is included in the scope of protection of the present invention.

1 Tank 2 Water discharge hole 3 Atomization chamber 4 Valve core 41 Fall-off prevention part 5 Water stop member 51 Water stop board 52 Tightening board 6 Elastic restoration member 7 1st horizontal rotation axis 8 Lever 81 Control end 82 Free end 9 2nd horizontal rotation axis 10 Water level control lever 101 Refilling push-up rod end 102 Float end 103 Push-up pillar 11 Penetration cylinder 12 Filter holder 13 Filter net 14 Ring packing 15 Valve body fixing cylinder 16 Holder 17 Ring packing

Claims (12)

A water replenishment control mechanism including a tank provided with a water discharge hole and an atomization chamber located below the water discharge hole, the valve core is mounted on the water discharge hole, and a water stop member is provided on the valve core. A water replenishment control mechanism provided with an elastic restoration member that controls the movement of the valve core in order to close the water discharge hole with the water stop member.
A lever is mounted below the tank via a first horizontal rotation shaft, one end of the lever is a control end and is connected to the valve core, and the other end of the lever is a free end. A water level control lever is mounted in the atomization chamber via a second horizontal rotation shaft. One end of the water level control lever is a refilling push-up rod end, and the other end is a float end. The water level control lever is located below the lever and exerts an acting force on the valve core through or directly from the lever, and the end of the refilling push-up rod moves upward to the above. The water blocking member is separated from the water discharge hole by the acting force applied to the valve core, and the float end moves upward to be applied to the valve core, and the acting force applied to the valve core by the elastic restoring member is used. The water stop member is a water replenishment control mechanism characterized by closing the water discharge hole. The water stop member is located below the water discharge hole, and the elastic restoration member is located between the free end of the lever and the bottom wall of the tank, and is elastic downward to the free end of the lever. A force is applied, the end of the refilling push-up rod of the water level control lever is located below the free end of the lever, and the float end of the water level control lever is located below the valve core or the control end of the lever. The water replenishment control mechanism according to claim 1. A through hole is provided at the control end of the lever, and the water stop member is an elastic member inserted into the through hole. Among the water stop members, a water stop plate is provided above the through hole. Is provided, and a tightening plate is provided in the lower portion of the through hole. By tightening the lever between the tightening plate and the water stop plate, the water stop member and the lever can be connected to each other. The water replenishment control mechanism according to claim 2, wherein a fixed connection is realized. The free end of the lever is provided with a protruding pillar protruding upward, the bottom wall of the tank is provided with a protruding pillar protruding downward, and both ends of the elastic restoration member are of the lever. The water replenishment control mechanism according to claim 2, wherein the spring is arranged at the free end and the protruding column on the bottom wall of the tank. The water stop member is located above the water discharge hole, and the elastic restoration member is located between the free end of the lever and the bottom wall of the tank, and is elastic upward toward the free end of the lever. A force is applied, the end of the refilling push-up rod of the water level control lever is located below the control end of the valve core or the lever, and the float end of the water level control lever is located below the free end of the lever. The water replenishment control mechanism according to claim 1. The water replenishment control mechanism according to claim 5, wherein the elastic restoring member is a spring connected to the free end of the lever and the bottom wall of the tank. A through hole is provided at the control end of the lever, the lower portion of the valve core is inserted into the through hole, and a dropout prevention portion having a contour larger than the contour of the through hole is provided at the bottom end of the valve core. The water replenishment control mechanism according to claim 5. A penetrating cylinder protruding downward is provided on the bottom wall of the tank, and a valve body fixing cylinder is detachably mounted below the penetrating cylinder, and the penetrating cylinder and the valve are attached. The body fixing cylinder is connected in a sealed shape, the valve body fixing cylinder has a tubular structure with an open upper end, and the water discharge hole of the tank is provided on the bottom wall of the valve body fixing cylinder. The water replenishment control mechanism according to claim 1. The water stop member is located above the water discharge hole, and a filter cylinder that separates the inside of the tank from the water discharge hole is integrally provided on the bottom wall of the tank, or is detachably attached. The filter cylinder has a tubular structure with an open bottom end, and the elastic restoring member is located between the upper wall of the filter cylinder and the valve core, and faces downward with respect to the valve core. An elastic force is applied, the end of the refilling push-up rod of the water level control lever is located below the valve core or the control end of the lever, and the float end of the water level control lever is located below the free end of the lever. 8. The water replenishment control mechanism according to claim 8. The filter cylinder is mounted above the valve body fixing cylinder by a screw connection with the valve body fixing cylinder, and the bottom end of the filter net and the bottom wall of the valve body fixing cylinder are connected in a sealed manner. The water replenishment control mechanism according to claim 9. The water replenishment control mechanism according to claim 9, wherein the peripheral region of the water discharge hole has a planar structure, and the water stop member has an elastic flat plate structure covering the peripheral region of the water discharge hole. A humidifier according to any one of claims 1 to 11, wherein the water replenishment operation of the tank and the atomization chamber is controlled by the water replenishment control mechanism.

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