Mechanical water leakage protection structure and dish washing machine

Abstract

The utility model provides a mechanical water leakage protection structure and a dish-washing machine, and relates to the technical field of dish-washing machine related equipment, the mechanical water leakage protection structure comprises a bottom plate, an overflow flow guide assembly, a connecting pipe and a plugging mechanism, the overflow flow guide assembly and the connecting pipe are both connected with the bottom plate; the connecting pipe is connected with an external water inlet pipe and an external water outlet pipe, so that a passage is formed between the water inlet pipe and the water outlet pipe; the blocking mechanism is connected with the connecting pipe, and one end of the blocking mechanism is used for extending the other end after receiving water guided by the overflow guide assembly so as to block the passage. The technical problem that the overflow protection function of the dishwasher fails under the condition that the whole dishwasher is powered on but the communication of an electronic circuit fails or the whole dishwasher is not powered on in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwasher-related equipment, in particular to a mechanical water leakage protection structure and a dishwasher. Background Art

[0002] A dishwasher is a kitchen appliance that automatically cleans food residue left on dishes after eating at home or in a restaurant. To use it, you place the dishes in the dishwasher's sink, which then sprays water mixed with detergent to wash the dishes.

[0003] In the prior art, dishwashers typically have an overflow assembly, which includes a foam float and a microswitch. When the dishwasher is powered on and the electronic circuits are communicating normally, if water accumulates on the dishwasher floor (due to a leak or overflow), the foam float will rise under the buoyancy of the water, triggering the microswitch to close. If the power board chip detects that the microswitch closure signal persists for a set period of time, it will issue a "Pause the entire machine" command, the digital tube will display an "Alarm" signal, and the buzzer will sound according to the set tone. The drain pump will start draining for a set time, then stop for a set time, repeating the cycle.

[0004] However, the reality is that when the whole machine is powered on but the electronic circuit communication fails or the whole machine is not powered on, the above-mentioned overflow protection function cannot be realized. Utility Model Content

[0005] The purpose of the present utility model is to provide a mechanical water leakage protection structure and a dishwasher, so as to alleviate the technical problem in the prior art that the overflow protection function of the dishwasher fails when the whole machine is powered on but the electronic circuit communication fails or the whole machine is not powered on.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a mechanical water leakage protection structure, comprising a bottom plate, an overflow guide assembly, a connecting pipe, and a blocking mechanism, wherein the overflow guide assembly and the connecting pipe are both connected to the bottom plate;

[0008] The connecting pipe is used to connect to an external water inlet pipe and a water outlet pipe, so as to form a passage between the water inlet pipe and the water outlet pipe;

[0009] The blocking mechanism is connected to the connecting pipe, and one end of the blocking mechanism is used to extend the other end after receiving the water diverted by the overflow diversion component to block the passage.

[0010] Furthermore, the blocking mechanism includes a gravity ball assembly, a rotating shaft and a blocking assembly, wherein the blocking assembly is connected to the connecting pipe, and one end away from the gravity ball assembly is connected to the gravity ball assembly through the rotating shaft;

[0011] One end of the gravity ball assembly away from the rotating shaft is used to receive the water diverted by the overflow diversion assembly and push the blocking assembly to move toward the connecting pipe so that the blocking assembly blocks the passage.

[0012] Furthermore, the gravity ball assembly includes a buoyancy gravity ball and a connecting rod, the buoyancy gravity ball is provided with a receiving portion, and the receiving portion is used to receive the water diverted by the overflow diversion assembly;

[0013] One end of the connecting rod is fixedly connected to the buoyancy gravity ball, and the other end is rotatably connected to the blocking assembly through the rotating shaft.

[0014] Furthermore, the blocking assembly includes a blocking member and a connecting member, one end of the connecting member is connected to the rotating shaft, and the other end is connected to the blocking member;

[0015] The blocking member is used to block the passage.

[0016] Furthermore, the connecting pipe includes a first connecting sub-pipe and a second connecting sub-pipe, the first connecting sub-pipe is connected to the second connecting sub-pipe to form the passage, and the diameter of the first connecting sub-pipe is smaller than the diameter of the second connecting sub-pipe;

[0017] The first connecting sub-pipe is used to connect to the water outlet pipe, and the second connecting sub-pipe is used to connect to the water inlet pipe;

[0018] The blocking member is accommodated in the second connecting sub-tube, and is used to block the passage by abutting against a connection between the first connecting sub-tube and the second connecting sub-tube.

[0019] Furthermore, the blocking assembly further includes a sealing ring connected to an end of the blocking member away from the connecting member, and the sealing ring is used to seal at the connection between the first connecting sub-tube and the second connecting sub-tube.

[0020] Furthermore, a cover plate is provided at one end of the second connecting sub-tube away from the first connecting sub-tube;

[0021] The blocking mechanism further includes an elastic member, one end of which is connected to the blocking member, and the other end of which is connected to the cover plate;

[0022] The elastic member is used to pull the blocking member away from the first connecting sub-tube through its own elastic force.

[0023] Furthermore, the bottom plate is provided with a fixing bracket;

[0024] The connecting pipe is provided with a fixing piece, and the connecting pipe is connected to the fixing bracket through the fixing piece.

[0025] Furthermore, the overflow guide assembly includes an overflow guide plate and an overflow conduit, and the overflow guide plate is connected to the bottom plate;

[0026] One end of the overflow conduit is connected to one end of the overflow guide plate, and the overflow conduit is used to guide the water of the overflow guide plate to the blocking mechanism.

[0027] The utility model can achieve the following beneficial effects:

[0028] In the first aspect, the utility model provides a mechanical water leakage protection structure, including a base plate, an overflow diversion assembly, a connecting pipe and a sealing mechanism, the overflow diversion assembly and the connecting pipe are both connected to the base plate; the connecting pipe is used to connect to an external water inlet pipe and an outlet pipe to form a passage between the water inlet pipe and the outlet pipe; the sealing mechanism is connected to the connecting pipe, and one end of the sealing mechanism is used to extend the other end after receiving the water diverted by the overflow diversion assembly to seal the passage.

[0029] In the utility model, an overflow diversion assembly and a connecting pipe are installed on the bottom plate, and the connecting pipe is used to connect with the water inlet pipe and the water outlet pipe. One end of the blocking mechanism is arranged in the connecting pipe, and the other end is used to receive the water diverted by the overflow diversion assembly, and while receiving the water, it pushes the end of the blocking mechanism arranged in the connecting pipe to move, so as to block the passage between the water inlet pipe and the water outlet pipe.

[0030] Compared with the prior art, the mechanical water leakage protection structure provided by the utility model can use the water diverted by the overflow diversion component as power to drive the blocking mechanism to move, so that the blocking mechanism blocks the passage between the water inlet pipe and the water outlet pipe, thereby achieving a mechanical way to prevent the water inlet pipe from continuing to inject water into the water outlet pipe in the event of overflow, effectively alleviating the overflow in the dishwasher.

[0031] In summary, the present invention at least alleviates the technical problem in the prior art that the overflow protection function of the dishwasher fails when the entire machine is powered on but the electronic circuit communication fails or the entire machine is not powered on.

[0032] In addition, the second aspect of the present invention also provides a dishwasher, including the mechanical water leakage protection structure provided by the first aspect; since the dishwasher provided by the embodiment of the present invention includes the mechanical water leakage protection structure provided by the first aspect, the dishwasher provided by the embodiment of the present invention can achieve all the beneficial effects that can be achieved by the mechanical water leakage protection structure provided by the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a mechanical water leakage protection structure provided by an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of the three-dimensional structure of the bottom plate portion of the mechanical water leakage protection structure provided by an embodiment of the present utility model;

[0036] Figure 3 A schematic structural diagram of the water-stopping portion of the mechanical water leakage protection structure provided by an embodiment of the present utility model;

[0037] Figure 4 A schematic diagram of the explosion structure of the water-stopping portion of the mechanical water leakage protection structure provided by an embodiment of the present utility model;

[0038] Figure 5 A schematic cross-sectional view of the water-stopping portion of the mechanical water leakage protection structure provided by an embodiment of the present utility model in a first use state;

[0039] Figure 6 This is a schematic diagram of the cross-sectional structure of the water-stopping part of the mechanical water leakage protection structure provided by an embodiment of the present utility model in the second usage state.

[0040] Icons: 1-base plate; 11-fixed bracket; 2-overflow guide assembly; 21-overflow guide plate; 22-overflow conduit; 3-connecting pipe; 301-first connecting sub-pipe; 302-second connecting sub-pipe; 31-fixing part; 32-cover plate; 4-sealing mechanism; 41-gravity ball assembly; 411-buoyancy gravity ball; 412-connecting rod; 42-rotating shaft; 43-elastic part; 44-sealing assembly; 441-sealing part; 442-connecting part; 443-sealing ring; 5-water inlet pipe; 6-water outlet pipe. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0046] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0047] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0048] Example 1

[0049] This embodiment provides a mechanical water leakage protection structure. Figure 1The mechanical water leakage protection structure includes a base plate 1, an overflow diversion component 2, a connecting pipe 3 and a blocking mechanism 4. The overflow diversion component 2 and the connecting pipe 3 are both connected to the base plate 1; the connecting pipe 3 is used to connect to the external water inlet pipe 5 and the water outlet pipe 6 to form a passage between the water inlet pipe 5 and the water outlet pipe 6; the blocking mechanism 4 is connected to the connecting pipe 3, and one end of the blocking mechanism is used to extend the other end after receiving the water diverted by the overflow diversion component 2 to block the passage.

[0050] The embodiments of the present invention at least alleviate the technical problem in the prior art that the overflow protection function of the dishwasher fails when the entire machine is powered on but the electronic circuit communication fails or the entire machine is not powered on.

[0051] In an embodiment of the present utility model, an overflow diversion assembly 2 and a connecting pipe 3 are installed on the base plate 1, and the connecting pipe 3 is used to connect with the water inlet pipe 5 and the water outlet pipe 6. One end of the sealing mechanism 4 is arranged in the connecting pipe 3, and the other end is used to receive the water diverted by the overflow diversion assembly 2, and while receiving the water, it is moved by pushing one end of the sealing mechanism 4 arranged in the connecting pipe 3 to block the passage between the water inlet pipe 5 and the water outlet pipe 6.

[0052] Compared with the prior art, the mechanical water leakage protection structure provided by the embodiment of the present invention can use the water diverted by the overflow diversion component 2 as power to push the blocking mechanism 4 to move, so that the blocking mechanism 4 blocks the passage between the water inlet pipe 5 and the water outlet pipe 6, thereby achieving a mechanical way to prevent the water inlet pipe 5 from continuing to inject water into the water outlet pipe 6 in the event of overflow, effectively alleviating the overflow in the dishwasher.

[0053] In an optional implementation manner of this embodiment, refer to Figure 4 The blocking mechanism 4 includes a gravity ball assembly 41, a rotating shaft 42 and a blocking assembly 44. The blocking assembly 44 is connected to the connecting pipe 3, and the end away from the gravity ball assembly 41 is linked to the gravity ball assembly 41 through the rotating shaft 42; the end of the gravity ball assembly 41 away from the rotating shaft 42 is used to receive the water diverted by the overflow diversion assembly 2 and push the blocking assembly 44 to move toward the connecting pipe 3 so that the blocking assembly 44 blocks the passage.

[0054] Specifically: the gravity ball assembly 41 is connected to the blocking assembly 44 through the rotating shaft 42. The gravity ball assembly 41 is used to receive the water diverted by the overflow diversion assembly 2, and through the impact of the water flow, the gravity ball assembly 41 rotates a certain angle relative to the rotating shaft 42, and pushes the blocking assembly 44 to move, so that the blocking assembly 44 blocks the passage.

[0055] Further, refer to Figure 4The gravity ball assembly 41 includes a buoyancy gravity ball 411 and a connecting rod 412. The buoyancy gravity ball 411 is provided with a receiving portion, which is used to receive the water diverted by the overflow diversion assembly 2; one end of the connecting rod 412 is fixedly connected to the buoyancy gravity ball 411, and the other end is rotatably connected to the sealing assembly 44 through the rotating shaft 42.

[0056] Specifically: the receiving part of the buoyancy gravity ball 411 can be a bowl-shaped structure, which is used to receive the water diverted by the overflow diversion component 2; and the connecting rod 412 shaft 42 is rotatably connected to the blocking component 44, and the connecting rod 412 is provided with a protrusion at one end close to the blocking component 44, and the protrusion abuts against the end of the connecting pipe 3; after the buoyancy gravity ball 411 is impacted by water, it rotates downward 90°, and the protrusion of the connecting rod 412 pushes the blocking component 44 to move during this rotation process to achieve blocking of the passage.

[0057] In an optional implementation manner of this embodiment, refer to Figure 5 or Figure 6 The blocking component 44 includes a blocking member 441 and a connecting member 442 . One end of the connecting member 442 is connected to the rotating shaft 42 , and the other end is connected to the blocking member 441 . The blocking member 441 is used to block the passage.

[0058] Specifically: the shape of the sealing member 441 is the same as the shape of the inner tube wall of the connecting tube 3, and is preferably circular; and a through hole is provided at one end of the connecting member 442 away from the sealing member 441, and this through hole is used to connect with the rotating shaft 42, and preferably, a groove is provided at the end of the connecting rod 412, and the end of the connecting member 442 is inserted into this groove, and the two are connected in this groove by the rotating shaft 42.

[0059] Further, refer to Figure 4 or Figure 5 The connecting pipe 3 includes a first connecting sub-tube 301 and a second connecting sub-tube 302. The first connecting sub-tube 301 is connected to the second connecting sub-tube 302 to form a passage, and the diameter of the first connecting sub-tube 301 is smaller than the diameter of the second connecting sub-tube 302; the first connecting sub-tube 301 is used to connect to the water outlet pipe 6, and the second connecting sub-tube 302 is used to connect to the water inlet pipe 5; the blocking piece 441 is accommodated in the second connecting sub-tube 302, and the blocking piece 441 is used to abut against the connection between the first connecting sub-tube 301 and the second connecting sub-tube 302 to block the passage.

[0060] Specifically: the first connecting sub-tube 301 and the second connecting sub-tube 302 are connected, and preferably, the first connecting sub-tube 301 and the second connecting sub-tube 302 are an integrally formed structure, the first connecting sub-tube 301 and the second connecting sub-tube 302 are both circular tube structures, and the diameter of the first connecting sub-tube 301 is smaller than that of the second connecting sub-tube 302; the sealing piece 441 is accommodated in the second connecting sub-tube 302, and the sealing piece 441 is abutted against the connection between the first connecting sub-tube 301 and the second connecting sub-tube 302 to achieve the closure of this passage.

[0061] Further, refer to Figure 4 or Figure 6 The sealing assembly 44 also includes a sealing ring 443, which is connected to one end of the sealing member 441 away from the connecting member 442, and the sealing ring 443 is used to seal the connection between the first connecting sub-tube 301 and the second connecting sub-tube 302.

[0062] Specifically, the sealing ring 443 is connected to the circular sealing member 441 along its circumference. When the sealing member 441 abuts against the connection between the first connecting sub-tube 301 and the second connecting sub-tube 302 , the sealing ring 443 is used to seal the abutting joint.

[0063] In an optional implementation manner of this embodiment, refer to Figure 5 or Figure 6 A cover plate 32 is provided at one end of the second connecting sub-tube 302 away from the first connecting sub-tube 301; the sealing mechanism 4 also includes an elastic member 43, one end of the elastic member 43 is connected to the sealing member 441, and the other end is connected to the cover plate 32; the elastic member 43 is used to pull the sealing member 441 away from the first connecting sub-tube 301 through its own elastic force.

[0064] Specifically: the cover plate 32 is detachably connected to one end of the second connecting sub-tube 302 away from the first connecting sub-tube 301; and the elastic member 43 is preferably a spring, and one end of the elastic member 43 abuts the cover plate 32, and the other end is connected to the disc-shaped blocking member 441. When the gravity ball assembly 41 is not impacted by water, the elastic member 43 is in a compressed state. After the gravity ball assembly 41 is rotated by the impact of water, the elastic action of the elastic member 43 pushes the blocking member 441 to move, so that the blocking member 441 abuts the connection between the first connecting sub-tube 301 and the second connecting sub-tube 302, and the water injected into the second connecting sub-tube 302 by the water inlet pipe 5 also applies pressure on the blocking member 441 toward the first connecting sub-tube 301.

[0065] In an optional implementation manner of this embodiment, refer to Figure 2 or Figure 3 The bottom plate 1 is provided with a fixing bracket 11 ; the connecting pipe 3 is provided with a fixing piece 31 , and the connecting pipe 3 is connected to the fixing bracket 11 through the fixing piece 31 .

[0066] Specifically: a threaded hole is provided on the top of the fixing bracket 11, and a through hole is provided on the fixing piece 31. An external bolt passes through the through hole and is tightened in the threaded hole to connect the two. Preferably, two fixing brackets 11 and two fixing pieces 31 are provided.

[0067] In an optional implementation manner of this embodiment, refer to Figure 1 The overflow guide assembly 2 includes an overflow guide plate 21 and an overflow conduit 22. The overflow guide plate 21 is connected to the bottom plate 1; one end of the overflow conduit 22 is connected to one end of the overflow guide plate 21, and the overflow conduit 22 is used to guide the water of the overflow guide plate 21 to the blocking mechanism 4.

[0068] Specifically: one end of the overflow conduit 22 is connected to one end of the overflow guide plate 21, and the overflow conduit 22 is used to guide the water from the overflow guide plate 21 to the blocking mechanism 4; preferably, the overflow guide plate 21 is used to guide the overflow water from the bottom of the dishwasher to the overflow conduit 22, and then guide it to the buoyancy gravity ball 411 of the blocking mechanism 4 through the overflow conduit 22.

[0069] Example 2

[0070] This embodiment provides a dishwasher, which includes the mechanical water leakage protection structure provided by any optional implementation manner in Example 1.

[0071] Since the dishwasher provided in this embodiment includes the mechanical water leakage protection structure described in Example 1, the dishwasher provided in this embodiment can achieve all the beneficial effects that can be achieved by the mechanical water leakage protection structure in Example 1. Its specific structure and achievable effects can be obtained by referring to the various optional or preferred implementations in Example 1.

[0072] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other; the above embodiments in this specification are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the various embodiments of the utility model.

Claims

1. A mechanical water leakage protection structure, characterized in that: It comprises a bottom plate (1), an overflow diversion assembly (2), a connecting pipe (3) and a blocking mechanism (4), wherein the overflow diversion assembly (2) and the connecting pipe (3) are both connected to the bottom plate (1); The connecting pipe (3) is used to connect to an external water inlet pipe (5) and a water outlet pipe (6) so as to form a passage between the water inlet pipe (5) and the water outlet pipe (6); The blocking mechanism (4) is connected to the connecting pipe (3), and one end of the blocking mechanism is used to extend the other end after receiving the water diverted by the overflow diversion component (2) to block the passage.

2. The mechanical water leakage protection structure according to claim 1, characterized in that: The blocking mechanism (4) comprises a gravity ball assembly (41), a rotating shaft (42) and a blocking assembly (44); the blocking assembly (44) is connected to the connecting pipe (3), and one end of the blocking assembly (44) away from the gravity ball assembly (41) is connected to the gravity ball assembly (41) via the rotating shaft (42); One end of the gravity ball component (41) away from the rotating shaft (42) is used to receive the water diverted by the overflow diversion component (2) and to push the blocking component (44) to move in the direction of the connecting pipe (3) so that the blocking component (44) blocks the passage.

3. The mechanical water leakage protection structure according to claim 2, characterized in that: The gravity ball assembly (41) comprises a buoyancy gravity ball (411) and a connecting rod (412); the buoyancy gravity ball (411) is provided with a receiving portion, and the receiving portion is used to receive the water diverted by the overflow diversion assembly (2); One end of the connecting rod (412) is fixedly connected to the buoyancy gravity ball (411), and the other end is rotatably connected to the blocking assembly (44) via the rotating shaft (42).

4. The mechanical water leakage protection structure according to claim 2, characterized in that: The blocking component (44) comprises a blocking member (441) and a connecting member (442), one end of the connecting member (442) being connected to the rotating shaft (42), and the other end of the connecting member (442) being connected to the blocking member (441); The blocking member (441) is used to block the passage.

5. The mechanical water leakage protection structure according to claim 4, characterized in that: The connecting tube (3) comprises a first connecting sub-tube (301) and a second connecting sub-tube (302), the first connecting sub-tube (301) and the second connecting sub-tube (302) are connected to form the passage, and the diameter of the first connecting sub-tube (301) is smaller than the diameter of the second connecting sub-tube (302); The first connecting sub-pipe (301) is used to be connected to the water outlet pipe (6), and the second connecting sub-pipe (302) is used to be connected to the water inlet pipe (5); The blocking member (441) is accommodated in the second connecting sub-tube (302), and the blocking member (441) is used to block the passage by abutting against the connection between the first connecting sub-tube (301) and the second connecting sub-tube (302).

6. The mechanical water leakage protection structure according to claim 5, characterized in that: The plugging assembly (44) further comprises a sealing ring (433), wherein the sealing ring (433) is connected to an end of the plugging member (441) away from the connecting member (442), and the sealing ring (433) is used to seal at the connection between the first connecting sub-tube (301) and the second connecting sub-tube (302).

7. The mechanical water leakage protection structure according to claim 5, characterized in that: A cover plate (32) is provided at one end of the second connecting sub-tube (302) away from the first connecting sub-tube (301); The blocking mechanism (4) further comprises an elastic member (43), one end of the elastic member (43) being connected to the blocking member (441), and the other end of the elastic member (43) being connected to the cover plate (32); The elastic member (43) is used to pull the blocking member (441) away from the first connecting sub-tube (301) by its own elastic force.

8. The mechanical water leakage protection structure according to claim 1, characterized in that: The bottom plate (1) is provided with a fixing bracket (11); The connecting pipe (3) is provided with a fixing piece (31), and the connecting pipe (3) is connected to the fixing bracket (11) via the fixing piece (31).

9. The mechanical water leakage protection structure according to any one of claims 1 to 8, characterized in that: The overflow guide assembly (2) comprises an overflow guide plate (21) and an overflow conduit (22), and the overflow guide plate (21) is connected to the bottom plate (1); One end of the overflow conduit (22) is connected to one end of the overflow guide plate (21), and the overflow conduit (22) is used to guide the water of the overflow guide plate (21) to the blocking mechanism (4).

10. A dishwasher, characterized in that: The invention comprises the mechanical water leakage protection structure according to any one of claims 1 to 9.

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