Water leakage alarm mechanism and dish washing machine

Abstract

The utility model relates to the technical field of kitchen cleaning tools, and provides a water leakage alarm mechanism and a dish washing machine. The water leakage alarm mechanism comprises a water collecting part, a trigger rod, a movable plate and an induction piece. The water collecting part is provided with a water collecting cavity, one end of the trigger rod extends into the water collecting cavity, the movable plate is movably connected to the water collecting part and avoids the water collecting cavity, and the movable plate is connected with the trigger rod; the trigger rod is configured to respond to the pressure intensity change of the water collecting cavity to drive the movable plate to move relative to the water collecting part so as to trigger the induction piece. According to the water leakage alarm mechanism, the water pressure in the water collecting cavity can act on the trigger rod to drive the movable plate to move so as to trigger the induction piece, alarming feedback can be conveniently and timely conducted on overflowing water flow, a user can conveniently and timely conduct processing, and the use safety of the dish washing machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen cleaning appliances, and in particular to a water leakage alarm mechanism and a dishwasher. Background Art

[0002] As dishwashers become more popular, people are paying more attention to the performance indicators of dishwashers such as cleaning when using them. Therefore, in order to meet higher cleaning performance, multiple spray arms are often designed to ensure that the tableware is sprayed and rinsed in all directions without dead ends.

[0003] However, such a setting often causes water droplets during cleaning to splash to other places and then gather at the bottom of the outer shell. These water flows may overflow into the dishwasher. If not handled in time, it may even affect the performance of the electrical structure in the dishwasher. Utility Model Content

[0004] Based on this, it is necessary to provide a water leakage alarm mechanism that can promptly provide alarm feedback for the inflowing water, so that users can take timely measures and improve the safety of dishwasher use.

[0005] A water leakage alarm mechanism comprises a water collecting part, a trigger rod, a movable plate and a sensing element; the water collecting part is constructed with a water collecting cavity, one end of the trigger rod extends into the water collecting cavity, the movable plate is movably connected to the water collecting part and is arranged away from the water collecting cavity, and the movable plate is connected to the trigger rod; the trigger rod is configured to drive the movable plate to move relative to the water collecting part in response to the pressure change of the water collecting cavity to trigger the sensing element.

[0006] It can be understood that the setting of the water collecting chamber is convenient for storing the overflowing water flow; when there is no overflowing water flow in the water collecting chamber, the water collecting chamber is in a normal state of atmospheric pressure; when the water flow overflows into the water collecting chamber, the pressure in the water collecting chamber increases, and the water flow will squeeze the cavity wall of the water collecting chamber, causing the trigger rod to move under the pressure of the water flow; the movement of the trigger rod will drive the movable plate to move relative to the water collecting part, thereby triggering the sensing component, and the sensing component sends a sensing signal to remind the user of the risk of water leakage, which is convenient for timely handling of the water leakage, so as to improve the safety of equipment use.

[0007] In some of the embodiments, the water collecting portion is constructed with a water inlet connected to the water collecting chamber; the water collecting chamber is provided with a receiving plate at a position close to the water inlet, and one end of the trigger rod extending into the water collecting chamber is connected to the receiving plate; and / or, one end of the trigger rod extending into the water collecting chamber is constructed with a connecting portion, the connecting portion is connected to the bottom of the water collecting chamber, and the connecting portion is arranged close to the water inlet.

[0008] In some embodiments, a support plate is provided in the water collecting chamber, the support plate is located on the side of the receiving plate away from the water inlet, the support plate is structured with a limiting hole, and the trigger rod is passed through the limiting hole.

[0009] In some embodiments, the water leakage alarm mechanism also includes a paddle, which is movably connected to the water collection portion and is arranged away from the water collection chamber, and one end of the trigger rod facing away from the water collection chamber is abutted against the paddle, and the paddle is configured to unlock relative to the movable plate in response to movement of the trigger rod.

[0010] In some embodiments, one of the movable plate and the paddle is configured with a locking groove, and the other is configured with a locking tongue, the locking tongue can be clamped in the locking groove to lock the paddle relative to the movable plate, and the locking tongue can move out of the locking groove to unlock the door as the paddle moves.

[0011] In some embodiments, the water leakage alarm mechanism also includes a first elastic member, which is connected between the paddle and the water collecting portion, and is used to apply a force to the paddle to lock it on the movable plate; and / or, the water leakage alarm mechanism also includes a second elastic member, which is connected between the movable plate and the water collecting portion, and is used to apply a force to the movable plate to move toward the sensing member.

[0012] In some embodiments, a portion of the water collecting portion is recessed to form the water collecting chamber, and a portion of the water collecting portion located at the mouth of the water collecting chamber extends to form an assembly section; wherein the trigger rod and the movable plate are arranged on opposite sides along the thickness direction of the assembly section, the assembly section is constructed with a through hole, and the paddle is penetrated through the through hole.

[0013] In some embodiments, the trigger rod is arranged on the side of the assembly section away from the water collecting chamber recess; the water collecting part includes a fixed seat and a connecting arm, the fixed seat is arranged on the side of the assembly section toward the water collecting chamber recess, the connecting arm is connected between the assembly section and the fixed seat, the movable plate and the paddle are both rotatably connected to the fixed seat, and the sensing element is installed at one end of the fixed seat away from the water collecting chamber.

[0014] In some embodiments, the trigger rod includes a first section and a second section connected to one end of the first section, and the second section extends into the water collecting chamber at one end away from the first section; wherein, along the recessed direction of the water collecting chamber, the first section is arranged higher than the second section.

[0015] The present application also provides a dishwasher, comprising a housing assembly and the above-mentioned water leakage alarm mechanism, wherein the water leakage alarm mechanism is installed at the bottom of the housing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A first partial schematic diagram of the water leakage alarm mechanism provided by the present application;

[0018] Figure 2 A cross-sectional view of the water leakage alarm mechanism provided for this application;

[0019] Figure 3 A second partial schematic diagram of the water leakage alarm mechanism provided by the present application;

[0020] Figure 4 A first schematic diagram of the water leakage alarm mechanism provided by the present application being installed on a housing assembly;

[0021] Figure 5 This is a second schematic diagram of the water leakage alarm mechanism provided in the present application installed on the housing assembly.

[0022] 1. Water leakage alarm mechanism; 110. Water collecting part; 111. Receiving plate; 112. Support plate; 113. Assembly section; 114. Fixed seat; 115. Connecting arm; 120. Trigger rod; 121. First section; 122. Second section; 130. Movable plate; 131. Connecting plate; 140. Induction member; 150. Paddle; 160. First elastic member; 170. Second elastic member; 200. Shell assembly; 1001. Lock tongue; 1002. Locking groove; 1101. Water collecting chamber; 1102. Water inlet; 1120. Limiting hole; 1130. Through hole; 1141. First hinge seat; 1142. Second hinge seat; 1201. Connecting part; 1301. Through hole. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0028] See also Figure 4 and Figure 5As shown, an embodiment of the present application provides a dishwasher, including a housing assembly 200 and a water leakage alarm mechanism 100. The water leakage alarm mechanism 100 is installed on the housing assembly 200. The housing assembly 200 is used to enclose an assembly cavity to facilitate the assembly of the spray arm, bowl rack, driving electrical structure, etc. in the dishwasher, wherein the driving electrical structure needs to be installed separately in a cavity to avoid contact with water flow and affect performance. Since some water may penetrate into the cavity for installing the driving electrical structure during the use of the dishwasher, the water leakage alarm mechanism 100 will promptly alarm and indicate at this time, so that the user can handle it in time, reduce the impact of the water flow on the driving electrical structure, and ensure the normal operation of the dishwasher. The water leakage alarm mechanism 100 is described in detail below.

[0029] See also Figures 1 to 5 As shown, an embodiment of the present application provides a water leakage alarm mechanism 100, including a water collecting portion 110, a trigger rod 120, a movable plate 130 and a sensor 140. The water collecting portion 110 is constructed with a water collecting chamber 1101, one end of the trigger rod 120 extends into the water collecting chamber 1101, the movable plate 130 is movably connected to the water collecting portion 110 and is arranged to avoid the water collecting chamber 1101, and the movable plate 130 is connected to the trigger rod 120. The trigger rod 120 is configured to drive the movable plate 130 to move relative to the water collecting portion 110 in response to the pressure change of the water collecting chamber 1101 to trigger the sensor 140.

[0030] In other words, the water flow that overflows into the housing assembly 200 can be stored by using the setting of the water collecting chamber 1101, which is equivalent to providing a temporary storage area to prevent the water flow from directly contacting the driving electrical structure. When there is no water flow overflowing into the water collecting chamber 1101, the water collecting chamber 1101 is filled with air, which is in a normal state of atmospheric pressure, and the pressure borne by the trigger rod 120 is in a balanced state. When water flows into the water collecting chamber 1101, it will cause the pressure in the water collecting chamber 1101 to change, that is, the pressure increases, and the water pressure will act on the trigger rod 120 to drive the trigger rod 120 to move, and the trigger rod 120 drives the movable plate 130 to move relative to the water collecting part 110 to trigger the sensor 140. When the sensor 140 is triggered, it will send out a sensing signal to remind the user of the risk of water leakage, which is convenient for timely handling of water leakage and improves the safety of use.

[0031] Please combine Figures 1 to 3In actual use, the end of the trigger rod 120 extending into the water collecting chamber 1101 is configured with a connecting portion 1201, so as to be connected to the bottom of the water collecting chamber 1101 and to withstand water pressure. Among them, the size of the connecting portion 1201 is relatively large, with a large contact area and receiving water flow, so as to better feedback pressure changes. Among them, the water collecting portion 110 is configured with a water inlet 1102 connected to the water collecting chamber 1101, and the water inlet 1102 is arranged toward the connecting portion 1201, so as to prompt the water flow direction to be toward the connecting portion 1201, so as to facilitate timely feedback of pressure changes. Since the connecting portion 1201 is arranged close to the water inlet 1102, when the water flows into the water collecting chamber 1101 through the water inlet 1102, it will impact the connecting portion 1201, so as to apply water pressure to the connecting portion 1201 in the direction away from the water inlet 1102, so as to prompt the connecting portion 1201 to bend relative to the bottom of the water collecting chamber 1101, thereby driving the trigger rod 120 to move.

[0032] like Figure 1 As shown, in a replaceable embodiment, the water collecting chamber 1101 is provided with a receiving plate 111 at a position close to the water outlet, and one end of the trigger rod 120 extending into the water collecting chamber 1101 is connected to the receiving plate 111. The setting of the receiving plate 111 is convenient for receiving water flow to feedback pressure changes. The receiving plate 111 is erected at the bottom of the water collecting chamber 1101, and the two ends along its own length direction are respectively connected to the side walls of the water collecting chamber 1101, which is equivalent to a partition provided in the water collecting chamber 1101 to divide the water collecting chamber 1101 into a first cavity close to the water inlet 1102 and a second cavity away from the water inlet 1102. After the water flows into the water inlet 1102, the receiving plate 111 applies water pressure toward the second cavity, so that the receiving plate 111 bends and drives the trigger rod 120 to move. The trigger rod 120 is connected to the side of the receiving plate 111 away from the bottom of the water collecting chamber 1101 to ensure obvious displacement.

[0033] It is worth noting that when a receiving plate 111 is provided in the water collecting chamber 1101 , the connecting portion 1201 at the end of the trigger rod 120 can be connected to the receiving plate 111 to connect the trigger rod 120 and the receiving plate 111 into an integral structure.

[0034] Furthermore, a support plate 112 is provided in the water collecting chamber 1101, and the support plate 112 is located on the side of the receiving plate 111 away from the water inlet 1102. The support plate 112 is structured with a limit hole 1120, and the trigger rod 120 is passed through the limit hole 1120. In other words, the support plate 112 and the receiving plate 111 cooperate to meet the double-point constraint of the trigger rod 120 relative to the water collecting part 110, ensure that the trigger rod 120 will not move in a predetermined direction relative to the water collecting part 110, reduce the deviation of the trigger rod 120 relative to the water collecting part 110, so as to trigger the movable plate 130 to move more accurately.

[0035] Please continue to combine Figures 1 to 3In an optional embodiment, the water leakage alarm mechanism 100 further includes a paddle 150, which is movably connected to the water collecting portion 110 and is arranged away from the water collecting chamber 1101. The end of the trigger rod 120 that is away from the water collecting chamber 1101 abuts against the paddle 150, and the paddle 150 is configured to be unlocked relative to the movable plate 130 in response to the movement of the trigger rod 120. It can be understood that the setting of the paddle 150 is used to link the trigger rod 120 and the movable plate 130. When the trigger rod 120 moves toward the water pressure direction under the action of the water pressure in the water collecting chamber 1101, it will push the paddle 150 to move synchronously, prompting the paddle 150 to unlock the movable plate 130, so that the movable plate 130 can move relative to the water collecting portion 110 to trigger the sensing member 140.

[0036] In actual use, the movable plate 130 rotates relative to the water collecting part 110 to trigger the sensing element 140. At this time, the movable plate 130 is provided with a connecting plate 131, so that the movable plate 130 is rotatably connected to the water collecting part 110 through the rotating shaft. At the same time, the paddle 150 is also rotatably connected relative to the water collecting part 110, so that it is convenient to act on the movable plate 130 under the power of the trigger rod 120.

[0037] Please continue to combine Figures 1 to 3 Furthermore, the water leakage alarm mechanism 100 further includes a first elastic member 160, which is connected between the paddle 150 and the water collecting portion 110, and is used to apply a force to the paddle 150 to lock the movable plate 130. At the same time, the water leakage alarm mechanism 100 further includes a second elastic member 170, which is connected between the movable plate 130 and the water collecting portion 110, and is used to apply a force to the movable plate 130 to move toward the sensing member 140.

[0038] That is, by using the first elastic member 160 and the second elastic member 170, the corresponding paddle 150 and the movable plate 130 can be rotated in the opposite direction to restore the locked state. Figure 1Taking the placement orientation in as an example, when the water pressure is toward the left side, when the receiving plate 111 feels the lateral pressure of the water flow, it will bend counterclockwise relative to the bottom of the water collecting chamber 1101 to drive the trigger rod 120 to move to the left side. The trigger rod 120 pushes the paddle 150 to rotate counterclockwise to unlock the movable plate 130, and the movable plate 130 will rotate counterclockwise under the action of the second elastic member 170 to trigger the sensor 140 to alarm for water leakage. When the user cleans the water flow in the water collecting chamber 1101 in time, the water collecting chamber 1101 is in a state of no water or the water flow is insufficient to drive the trigger rod 120 to move, which is equivalent to the trigger rod no longer being subjected to lateral pressure to the left. After the paddle 150 loses the force of the trigger rod 120 to the left, it will rotate clockwise under the action of the first elastic member 160 to drive the movable plate 130 to rotate clockwise to restore the initial state and lock it, and the paddle 150 will push the trigger rod 120 to move to the right to restore the initial state, so as to trigger the sensor 140 again when the water flows in.

[0039] In the above manner, both the first elastic member 160 and the second elastic member 170 are torsion springs.

[0040] In an alternative embodiment, the trigger rod 120 can directly act on the movable plate 130, and the movable plate 130 can slide relative to the water collecting part 110 to trigger the sensing part 140. At this time, the second elastic member connected to the movable plate 130 can be a tension spring, which is used to drive the movable plate 130 to move in a direction away from the sensing part 140 to restore the initial state. Of course, when the paddle 150 is used to meet the linkage between the trigger rod 120 and the movable plate 130, the paddle 150 can also slide relative to the water collecting part 110, then the first elastic member is a tension spring, which is used to drive the paddle 150 to move in a direction away from the sensing part 140, and the second elastic member can be a compression spring, which is used to drive the movable plate 130 to move in a direction close to the sensing part 140; when the paddle 150 and the movable plate 130 are locked, the second elastic member is compressed. Among them, when sliding, the water collecting part 110 and the movable plate 130, or the water collecting part 110 and the paddle 150 can be matched with a slide groove or a slide bar to meet the movement guide.

[0041] In another alternative embodiment, the movable plate 130 , the paddle 150 , and the trigger rod 120 may all be restored to their initial states by manual operation.

[0042] Please continue to combine Figures 1 to 3Furthermore, the movable plate 130 is configured with a locking groove 1002, and the paddle 150 is configured with a locking tongue 1001. The locking tongue 1001 can be clamped in the locking groove 1002 to lock the paddle 150 relative to the movable plate 130, and the locking tongue 1001 can move out of the locking groove 1002 with the movement of the paddle 150 to unlock. In other words, when the locking tongue 1001 moves into the locking groove 1002, it will abut against the groove wall of the locking groove 1002, and under the action of the first elastic member 160, the paddle 150 and the movable plate 130 are locked; when the locking tongue 1001 moves out of the locking groove 1002, the paddle 150 and the movable plate 130 are unlocked. The locking groove 1002 may be formed by a recessed shape in the movable plate 130 along its thickness direction, or by a convex hook portion, as long as the movable plate 130 and the paddle 150 can be locked and unlocked.

[0043] Please continue to combine Figures 1 to 3 In an optional embodiment, a portion of the water collecting portion 110 is recessed to form a water collecting cavity 1101, and a portion of the water collecting portion 110 located at the mouth of the water collecting cavity 1101 extends to form an assembly section 113. The trigger rod 120 and the movable plate 130 are arranged on opposite sides along the thickness direction of the assembly section 113, and the assembly section 113 is configured with a through hole 1130, and the paddle 150 is inserted through the through hole 1130.

[0044] Specifically, the water collecting part 110 may be composed of a flat plate structure, and part of the flat plate structure is concave downward along its thickness direction to form a concave cavity, which is the water collecting cavity 1101, so the upper part of the water collecting cavity 1101 is open. The part of the flat plate structure that is not concave is integrally formed with the cavity opening of the water collecting cavity 1101 to form an assembly section 113, which is convenient for assembling the movable plate 130, the paddle 150, etc. Such a setting can separate the sensing member 140 and the movable plate 130 relative to the water collecting cavity 1101, and reduce the influence of the water flow on the sensing member 140. Among them, as mentioned above, the trigger rod 120 is connected to the position of the receiving plate 111 away from the bottom of the cavity, the more obvious the distance that the receiving plate 111 bends under water pressure to drive the trigger rod 120 to move; and, since the water collecting cavity 1101 is formed by the concave of the water collecting part 110, there is actually sufficient assembly space below the assembly section 113, so this part of the space can be fully utilized to facilitate the assembly of the movable plate 130. Therefore, the trigger rod 120 and the movable plate 130 can be set on opposite sides, the movable plate 130 is located below the assembly section 113, and the trigger rod 120 is located above the assembly section 113. At this time, it is necessary to provide a through hole 1130 that penetrates along the thickness direction of the assembly section 113, so that the paddle 150 can be inserted into the through hole 1130 to connect with the movable plate 130 and the trigger rod 120 arranged on both sides of the thickness direction of the assembly section 113 to meet the power transmission.

[0045] The flat plate structure may serve as a bottom side wall of the housing assembly 200 .

[0046] Please continue to combine Figures 1 to 3 In some embodiments, the trigger rod 120 includes a first section 121 and a second section 122 connected to the first section 121, and the second section 122 is connected to a connecting portion 1201 at one end away from the first section 121, so as to be fixed to the receiving plate 111. There is a height difference between the first section 121 and the second section 122 along the depth direction of the water collecting chamber 1101 (that is, the concave direction), so that the first section 121 can be arranged above the assembly section 113, and the second section 122 is located in the water collecting chamber 1101 to facilitate connection with the receiving plate 111. The first section 121 can be L-shaped, with the end of the short side connected to the second section 122, and the end of the long side abutting against the paddle 150.

[0047] Please continue to combine Figures 1 to 5 , exemplarily, the water collecting part 110 includes a fixed seat 114 and a connecting arm 115, the fixed seat 114 is arranged on one side of the assembly section 113 along the concave direction of the water collecting chamber 1101, the connecting arm 115 is connected between the assembly section 113 and the fixed seat 114, the movable plate 130 and the paddle 150 are both rotatably connected to the fixed seat 114, and the induction member 140 is installed at one end of the fixed seat 114 away from the water collecting chamber 1101. In other words, the setting of the connecting arm 115 satisfies the fixing of the fixed seat 114 relative to the assembly section 113; the setting of the fixed seat 114 facilitates the support of the movable plate 130 and the paddle 150, and also facilitates the setting of the rotation of the movable plate 130 and the paddle 150. Specifically, two hinged seats arranged at intervals along the water flow direction are arranged on the fixed seat 114, wherein the first hinged seat 1141 is used for rotatably connecting the movable plate 130, and the second hinged seat 1142 is used for connecting the paddle 150. Specifically, a connection plate 131 is protruded downward from the lower surface of the movable plate 130, and a first hinge shaft is provided through the connection plate 131 and the first hinge seat 1141 to realize the rotation of the movable plate 130. The second elastic member 170 is sleeved on the first hinge shaft, and its two ends are respectively connected to the movable plate 130 and the fixed seat 114 to meet the force of the movable plate 130 moving toward the sensing member 140. At the same time, the paddle 150 is sleeved on the second hinge shaft through a sleeve, and the first elastic member 160 is also sleeved on the second hinge shaft corresponding to the second hinge seat 1142, and its two ends are respectively connected to the paddle 150 and the fixed seat 114. It is sufficient as long as the movable plate 130 and the paddle 150 can be hinged relative to the fixed seat 114.

[0048] The connecting arm 115 is U-shaped to fix the fixing seat 114 in multiple directions to improve stability. The connecting arm 115 can be detachably connected to the fixing seat 114, or can be bonded. The sensing element 140 can be a contact sensor, which is installed on the side of the fixing seat 114 away from the water collection chamber 1101, so as to avoid the water collection chamber 1101 and reduce the influence of water flow.

[0049] Furthermore, the movable plate 130 is configured with a through hole 1301 for the paddle 150 to pass through, and the through hole 1301 and the through hole 1130 are both long holes, or rectangular holes. The through hole 1301 has a hook extending from the side wall of the water collecting chamber 1101 along its length direction to form a locking groove 1002.

[0050] Furthermore, the movable plate 130 is arranged in a V-shape, and its included angle is an obtuse angle, and the angle is between 120 degrees and 180 degrees, so as to facilitate the locking of the movable plate 130 and the paddle 150. In the initial state, the movable plate 130 can abut against the assembly section 113 of the water collecting part 110 to ensure stability, and can also be used to limit the rotation of the movable plate 130. At the same time, the cooperation of the first elastic member 160 and the second elastic member 170, as well as the cooperation of the locking tongue 1001 and the locking groove 1002, can also meet the rotation limit of the movable plate 130 and the paddle 150.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A water leakage alarm mechanism, characterized in that: The water leakage alarm mechanism (100) comprises a water collecting portion (110), a trigger rod (120), a movable plate (130) and a sensing element (140); The water collecting portion (110) is configured with a water collecting cavity (1101), one end of the trigger rod (120) extends into the water collecting cavity (1101), the movable plate (130) is movably connected to the water collecting portion (110) and is arranged away from the water collecting cavity (1101), and the movable plate (130) is connected to the trigger rod (120); The trigger rod (120) is configured to drive the movable plate (130) to move relative to the water collecting portion (110) in response to the pressure change of the water collecting chamber (1101), so as to trigger the sensing element (140).

2. The water leakage alarm mechanism according to claim 1, characterized in that: The water collecting portion (110) is configured with a water inlet (1102) communicating with the water collecting chamber (1101); The water collecting chamber (1101) is provided with a receiving plate (111) at a position close to the water inlet (1102), and one end of the trigger rod (120) extending into the water collecting chamber (1101) is connected to the receiving plate (111); and / or one end of the trigger rod (120) extending into the water collecting chamber (1101) is configured with a connecting portion (1201), the connecting portion (1201) is connected to the bottom of the water collecting chamber (1101), and the connecting portion (1201) is provided close to the water inlet (1102).

3. The water leakage alarm mechanism according to claim 2, characterized in that: A support plate (112) is provided in the water collecting chamber (1101), the support plate (112) is located on a side of the receiving plate (111) away from the water inlet (1102), the support plate (112) is structured with a limiting hole (1120), and the trigger rod (120) is inserted through the limiting hole (1120).

4. The water leakage alarm mechanism according to any one of claims 1 to 3, characterized in that: The water leakage alarm mechanism (100) further comprises a paddle (150), wherein the paddle (150) is movably connected to the water collecting portion (110) and is arranged away from the water collecting chamber (1101); an end of the trigger rod (120) facing away from the water collecting chamber (1101) abuts against the paddle (150); and the paddle (150) is configured to be unlocked relative to the movable plate (130) in response to movement of the trigger rod (120).

5. The water leakage alarm mechanism according to claim 4, characterized in that: One of the movable plate (130) and the paddle (150) is configured with a locking groove (1002), and the other is configured with a locking tongue (1001); the locking tongue (1001) can be locked in the locking groove (1002) to lock the paddle (150) relative to the movable plate (130), and the locking tongue (1001) can move out of the locking groove (1002) to unlock the door as the paddle (150) moves.

6. The water leakage alarm mechanism according to claim 4, characterized in that: The water leakage alarm mechanism (100) further comprises a first elastic member (160), the first elastic member (160) being connected between the paddle (150) and the water collecting portion (110), the first elastic member (160) being used to apply a force to the paddle (150) to lock it on the movable plate (130); and / or The water leakage alarm mechanism (100) further comprises a second elastic member (170), wherein the second elastic member (170) is connected between the movable plate (130) and the water collecting portion (110), and the second elastic member (170) is used to apply a force to the movable plate (130) to move toward the sensing member (140).

7. The water leakage alarm mechanism according to claim 4, characterized in that: A portion of the water collecting portion (110) is recessed to form the water collecting cavity (1101), and a portion of the water collecting portion (110) located at the cavity opening of the water collecting cavity (1101) is extended to form an assembly section (113); The trigger rod (120) and the movable plate (130) are arranged on opposite sides along the thickness direction of the assembly section (113); the assembly section (113) is provided with a through hole (1130); and the paddle (150) is passed through the through hole (1130).

8. The water leakage alarm mechanism according to claim 7, characterized in that: The trigger rod (120) is arranged on a side of the assembly section (113) that is away from the recess of the water collecting chamber (1101); The water collecting portion (110) comprises a fixing seat (114) and a connecting arm (115); the fixing seat (114) is arranged on a side of the assembly section (113) which is recessed toward the water collecting chamber (1101); the connecting arm (115) is connected between the assembly section (113) and the fixing seat (114); the movable plate (130) and the paddle (150) are both rotatably connected to the fixing seat (114); and the sensor (140) is installed on an end of the fixing seat (114) which is away from the water collecting chamber (1101).

9. The water leakage alarm mechanism according to claim 8, characterized in that: The trigger rod (120) comprises a first section (121) and a second section (122) connected to one end of the first section (121), and one end of the second section (122) facing away from the first section (121) extends into the water collecting chamber (1101); Wherein, along the concave direction of the water collecting chamber (1101), the first section (121) is arranged higher than the second section (122).

10. A dishwasher, characterized in that: The dishwasher comprises: A housing assembly (200); The water leakage alarm mechanism according to any one of claims 1 to 9, wherein the water leakage alarm mechanism (100) is installed at the bottom of the housing assembly (200).

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