A water collecting box sealing structure

Abstract

The application discloses a sealing structure of a water collecting box, which comprises a water collecting tray and a water collecting box. The water collecting box is arranged at the bottom of the water collecting tray and can move upward to cooperate with the water collecting tray and move downward to separate from the water collecting tray. The bottom of the water collecting tray is provided with a water outlet valve, and the top of the water collecting box is provided with a water inlet valve cooperating with the water outlet valve. During the upward movement of the water collecting box to cooperate with the water collecting tray, the water inlet valve is opened earlier than the water outlet valve. During the downward movement of the water collecting box to separate from the water collecting tray, the water outlet valve is closed earlier than the water inlet valve. The sealing structure of the water collecting box has the advantages that when the water collecting box is inserted, the sealing valve is opened, and the water in the water collecting tray flows into the water collecting box; when the water collecting box is pulled out to pour water, the sealing valve is closed, the water in the water collecting tray cannot flow out, the water collecting box can be automatically sealed to prevent overflow, and thus the sealing requirement can be met during the process of taking out the water collecting box, and the water leakage phenomenon can be prevented.

Description

Technical Field

[0001] This invention relates to water storage devices, and more particularly to a sealing structure for a water collection box. Background Technology

[0002] As users' demands for kitchen environments increase, various cooling-type range hoods have been invented to address the pain points of high kitchen temperatures and poor cooking experiences in summer. Due to limitations imposed by factors such as kitchen layout and design, it's generally difficult to install an outdoor unit; the outdoor unit is usually integrated inside the cooling-type range hood. Therefore, a reliable method for handling condensate is particularly important. When the range hood operates in cooling mode, the condensate on the evaporator surface flows out through the outlet at the bottom of the evaporator mounting jacket. This outlet is connected to the inlet of the drip tray via a flexible hose, allowing the condensate to flow into the drip tray, which then collects and flows into the bottom collection box. While collecting and emptying the condensate using a collection box is a simple and reliable method, improper design of the sealing structure between the drip tray and the collection box can lead to leakage during installation and removal, thus affecting the overall reliability of the machine. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water collection box sealing structure that can meet the sealing requirements during the installation and removal of the water collection box, in view of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the water collection box sealing structure includes a water receiving tray and a water collection box. The water collection box is located at the bottom of the water receiving tray. The water collection box can move upward to cooperate with the water receiving tray, and the water collection box can move downward to detach from the water receiving tray. The feature is that: a water outlet valve is installed at the bottom of the water receiving tray, and a water inlet valve that cooperates with the water outlet valve is installed at the top of the water collection box. During the process of the water collection box moving upward to cooperate with the water receiving tray, the water inlet valve opens before the water outlet valve. During the process of the water collection box moving downward to detach from the water receiving tray, the water outlet valve closes before the water inlet valve.

[0005] In order to allow the water in the receiving tray to flow smoothly into the water collection box through the outlet valve and the inlet valve, the bottom of the receiving tray is provided with an outlet valve outlet, and the top of the water collection box is provided with an inlet valve inlet. The inner diameter of the inlet valve inlet is larger than the inner diameter of the outlet valve outlet.

[0006] The water outlet valve can have various structures. Preferably, the water outlet valve includes a water outlet valve body, a water outlet valve sealing ring, a water outlet valve spring, and a spring upper pressure cover. The lower end of the water outlet valve body is inserted into the water outlet of the water outlet valve, forming a water outlet gap with the inner wall of the water outlet valve. The water outlet valve body is sealed to the water receiving tray by the water outlet valve sealing ring. The lower end of the water outlet valve spring abuts against the water outlet valve body, and the upper end of the water outlet valve spring abuts against the spring upper pressure cover. The spring upper pressure cover is fixed to the water receiving tray. In this way, the water outlet valve can be opened by pushing the water outlet valve body upward to overcome the elastic force of the water outlet valve spring. Conversely, after the external force acting on the water outlet valve body disappears, the water outlet valve body returns to its original position downward under the elastic force of the water outlet valve spring, and the water outlet valve closes.

[0007] The outlet valve spring can have various installation structures. Preferably, a radial boss is provided in the middle of the outlet valve body. The radial boss is located above the outlet of the outlet valve. The outlet valve sealing ring is located between the top of the outlet of the outlet valve and the radial boss. The lower end of the outlet valve spring is sleeved on the upper end of the outlet valve body and abuts against the radial boss.

[0008] In order to ensure that water can flow smoothly after the outlet valve is opened, a vertical guide rib is provided on the outer peripheral wall of the lower end of the outlet valve body. The vertical guide ribs are distributed at intervals along the circumference, and the outlet gap is formed between adjacent vertical guide ribs.

[0009] The inlet valve can have various structures. Preferably, the inlet valve includes an inlet valve base, an inlet valve body, an inlet valve sealing ring, an inlet valve spring, and a spring lower pressure cover. The inlet valve base is installed on the top of the water collection box, and the inlet valve inlet is opened on the top of the inlet valve base. The inlet valve body is installed inside the inlet valve base, and the upper end of the inlet valve body is inserted into the inlet valve inlet, forming an inlet gap with the inner wall of the inlet valve inlet. The inlet valve body is sealed to the inlet valve base by the inlet valve sealing ring. The upper end of the inlet valve spring abuts against the inlet valve body, and the lower end of the inlet valve spring abuts against the spring lower pressure cover, which is fixed to the inlet valve base. Thus, when the inlet valve body is subjected to an external force and moves downward, the inlet valve opens; conversely, when the external force acting on the inlet valve body disappears, the inlet valve body returns to its original position under the elastic force of the inlet valve spring, and the inlet valve closes.

[0010] The inlet valve spring can have various mounting structures. Preferably, the lower part of the inlet valve body has a spring mounting cavity, the lower spring cover extends upward to form a spring mounting post, the upper end of the inlet valve spring is installed in the spring mounting cavity, and the lower end of the inlet valve spring is sleeved on the spring mounting post.

[0011] In order to allow water to enter smoothly after the inlet valve is opened, the upper end of the inlet valve body has circumferentially staggered vertical ribs, and the inlet gap is formed between adjacent vertical ribs.

[0012] To prevent water leakage at the connection between the inlet valve base and the water collection box, the inlet valve base is sealed to the water collection box by an inlet valve base sealing ring.

[0013] To ensure that the inlet valve opens before the outlet valve when the water collection box moves upward and closes before the inlet valve when the water collection box moves downward, the spring force of the outlet valve is greater than that of the inlet valve spring. This difference in spring force between the outlet and inlet valves ensures a tight seal during the installation and removal of the water collection box, preventing leakage.

[0014] Compared with the prior art, the advantages of the present invention are as follows: the water collection box sealing structure has an outlet valve installed at the bottom of the water receiving tray and an inlet valve installed at the top of the water collection box. During the process of the water collection box moving upward to cooperate with the water receiving tray, the inlet valve opens before the outlet valve. During the process of the water collection box moving downward to disengage from the water receiving tray, the outlet valve closes before the inlet valve. Thus, when the water collection box is inserted, the sealing valve opens, and water in the water receiving tray flows into the water collection box; when the water collection box is pulled out to empty the water, the sealing valve closes, and water in the water receiving tray will not flow out. The water collection box can also automatically seal to prevent overflow, thereby meeting the sealing requirements during the installation and removal of the water collection box and preventing water leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the water receiving tray and water collection box according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the outlet valve and the inlet valve according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the water outlet valve body according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the water inlet valve body according to an embodiment of the present invention;

[0019] Figure 5 This is a cross-sectional view of the structure of the present invention before the water collection box is inserted, according to an embodiment of the invention.

[0020] Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle;

[0021] Figure 7 This is a cross-sectional view of the structure during the insertion of the water collection box according to an embodiment of the present invention;

[0022] Figure 8This is a cross-sectional view of the structure after the water collection box has been inserted, according to an embodiment of the present invention. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 6 As shown, the water collection box sealing structure of this embodiment includes a water receiving tray 1 and a water collection box 2. The water collection box 2 is located at the bottom of the water receiving tray 1. The water collection box 2 can move upward to engage with the water receiving tray 1, and can move downward to detach from the water receiving tray 1. The bottom of the water receiving tray 1 is provided with a water outlet 11, and a water outlet valve 3 is installed at the water outlet 11. The top of the water collection box 2 has a water inlet 21, and the inner diameter of the water inlet 21 is larger than the inner diameter of the water outlet 11. A water inlet valve 4, which engages with the water outlet valve 3, is installed at the water inlet 21. During the upward movement of the water collection box 2 to engage with the water receiving tray 1, the water inlet valve 4 opens before the water outlet valve 3. During the downward movement of the water collection box 2 to detach from the water receiving tray 1, the water outlet valve 3 closes before the water inlet valve 4.

[0025] The water outlet valve 3 in this embodiment includes a water outlet valve body 31, a water outlet valve sealing ring 32, a water outlet valve spring 33, and a spring cap 34. The lower end of the water outlet valve body 31 is inserted into the water outlet 11. Vertical guide ribs 36 protrude from the outer peripheral wall of the lower end of the water outlet valve body 31, and are spaced circumferentially, forming a water outlet gap 30 between adjacent vertical guide ribs 36. A radial boss 35 protrudes from the middle of the water outlet valve body 31, positioned above the water outlet 11. The water outlet valve sealing ring 32 is located between the top of the water outlet 11 and the radial boss 35, sealing the water outlet valve body 31 to the water receiving tray 1 via the water outlet valve sealing ring 32. The lower end of the outlet valve spring 33 is sleeved on the upper end of the outlet valve body 31 and abuts against the radial boss 35. The upper end of the outlet valve spring 33 abuts against the upper spring cover 34, which is fixed on the water receiving tray 1.

[0026] The water inlet valve 4 of this embodiment includes a water inlet valve base 41, a water inlet valve body 42, a water inlet valve sealing ring 43, a water inlet valve spring 44, and a spring pressing cover 45. Among them, the water inlet valve base 41 is installed on the top of the water collection box 2. There is a water inlet of the water inlet valve 21 on the top of the water inlet valve base 41. The water inlet valve body 42 is installed inside the water inlet valve base 41, and the upper end of the water inlet valve body 42 is inserted into the water inlet 21 of the water inlet valve. The upper end of the water inlet valve body 42 has circumferentially staggered vertical ribs 48. A water inlet gap 40 is formed between adjacent vertical ribs 48. The vertical ribs 48 can not only play a guiding role for up and down movement but also allow water to flow in. The water inlet valve body 42 is sealed with the water inlet valve base 41 through the water inlet valve sealing ring 43, and the water inlet valve base 41 is sealed with the water collection box 2 through the water inlet valve base sealing ring 49.

[0027] A spring installation cavity 46 is opened at the lower part of the water inlet valve body 42. The spring pressing cover 45 extends upward with a spring installation column 47. The upper end of the water inlet valve spring 44 is installed in the spring installation cavity 46 and abuts against the water inlet valve body 42. The lower end of the water inlet valve spring 44 is sleeved on the spring installation column 47 and abuts against the spring pressing cover 45. The spring pressing cover 45 is fixed on the water inlet valve base 41.

[0028] In order to enable the water outlet valve 3 and the water inlet valve 4 to be opened successively or closed front and back, in this embodiment, the elastic force of the water outlet valve spring 33 is greater than the elastic force of the water inlet valve spring 44.

[0029] As Figure 5 and Figure 6 shown, when the water collection box 2 is not pushed upward, the water outlet valve 3 and the water inlet valve 4 are not in contact. The water outlet valve 3 and the water inlet valve 4 are respectively sealed by the water outlet valve sealing ring 32 and the water inlet valve sealing ring 43 under the action of their respective springs. Let the elastic force of the water outlet valve spring 33 be F1 and the elastic force of the water inlet valve spring 44 be F2. It is necessary to satisfy F1 > F2. In this structure, it is designed that F1 = 3 to 5 N and F2 = 1 to 2 N.

[0030] As Figure 7 shown, as the water collection box 2 moves upward, the water inlet valve 4 contacts the water outlet valve 3. Due to F1 > F2, the water inlet valve spring 44 starts to be compressed, and the water inlet valve 4 is pushed downward and opened. At this time, the water outlet valve 3 on the water receiving tray 1 is still closed, ensuring sealing during the insertion of the water collection box 2.

[0031] As Figure 8 shown, as the water collection box 2 continues to be installed in place, the water inlet valve spring 44 is compressed to the limit and no longer compresses. The water inlet valve 4 pushes the water outlet valve 3 upward to open. The water on the water receiving tray 1 flows out through the water outlet gap 30 on the water outlet valve body 3 and then flows into the water collection box 2 through the water inlet gap 40 on the water inlet valve body 42. Let the diameter of the water outlet 11 of the water outlet valve be D1 and the diameter of the water inlet 21 of the water inlet valve be D2. D1 < D2, ensuring that water can smoothly enter the water collection box 2.

[0032] Once the water collection box 2 is full, during the process of pulling out the water collection box 2, the outlet valve 3 will close first because F1>F2. As the water collection box 2 continues to be pulled out, the inlet valve 4 will close. After the water collection box 2 is removed, the water collection box 2 meets the sealing requirements in any direction.

Claims

1. A water collection box sealing structure, comprising a water receiving tray (1) and a water collection box (2), wherein the water collection box (2) is disposed at the bottom of the water receiving tray (1), the water collection box (2) can move upward to cooperate with the water receiving tray (1), and the water collection box (2) can move downward to detach from the water receiving tray (1), characterized in that: A water outlet valve (3) is installed at the bottom of the water receiving tray (1), and a water outlet valve outlet (11) is provided at the bottom of the water receiving tray (1). A water inlet valve (4) that cooperates with the water outlet valve (3) is installed at the top of the water collection box (2). During the process of the water collection box (2) moving upward to cooperate with the water receiving tray (1), the water inlet valve (4) opens before the water outlet valve (3). During the process of the water collection box (2) moving downward to disengage from the water receiving tray (1), the water outlet valve (3) closes before the water inlet valve (4). The outlet valve (3) includes an outlet valve body (31), an outlet valve sealing ring (32), an outlet valve spring (33), and a spring cap (34). The lower end of the outlet valve body (31) is inserted into the outlet valve outlet (11) and forms an outlet gap (30) with the inner wall of the outlet valve outlet (11). The outlet valve body (31) is sealed to the water receiving tray (1) by the outlet valve sealing ring (32). The lower end of the outlet valve spring (33) abuts against the outlet valve body (31). The upper end of the valve (4) abuts against the upper pressure cover (34) of the spring, which is fixed on the water receiving tray (1). The water inlet valve (4) includes a water inlet valve base (41), a water inlet valve body (42), a water inlet valve sealing ring (43), a water inlet valve spring (44), and a lower pressure cover (45). The water inlet valve base (41) is installed on the top of the water collection box (2), and a water inlet valve inlet (21) is opened on the top of the water inlet valve base (41). The water inlet valve body (42) is installed on the water inlet valve base (41). Inside, the upper end of the inlet valve body (42) is inserted into the inlet valve inlet (21) and forms an inlet gap (40) with the inner wall of the inlet valve inlet (21). The inlet valve body (42) is sealed to the inlet valve base (41) by the inlet valve sealing ring (43). The upper end of the inlet valve spring (44) abuts against the inlet valve body (42), and the lower end of the inlet valve spring (44) abuts against the spring lower pressure cover (45). The spring lower pressure cover (45) is fixed on the inlet valve base (41).

2. The water collection box sealing structure according to claim 1, characterized in that: The inner diameter of the inlet (21) of the inlet valve is larger than the inner diameter of the outlet (11) of the outlet valve.

3. The water collection box sealing structure according to claim 1, characterized in that: The water outlet valve body (31) has a radial boss (35) protruding in the middle. The radial boss (35) is located above the water outlet valve outlet (11). The water outlet valve sealing ring (32) is located between the top of the water outlet valve outlet (11) and the radial boss (35). The lower end of the water outlet valve spring (33) is sleeved on the upper end of the water outlet valve body (31) and abuts against the radial boss (35).

4. The water collection box sealing structure according to claim 1, characterized in that: The lower end of the water outlet valve body (31) is provided with a vertical guide rib (36) protruding on the outer peripheral wall. The vertical guide ribs (36) are distributed at intervals along the circumference, and the water outlet gap (30) is formed between adjacent vertical guide ribs (36).

5. The water collection box sealing structure according to claim 1, characterized in that: The lower part of the water inlet valve body (42) has a spring mounting cavity (46), the lower spring cover (45) extends upward to a spring mounting post (47), the upper end of the water inlet valve spring (44) is installed in the spring mounting cavity (46), and the lower end of the water inlet valve spring (44) is sleeved on the spring mounting post (47).

6. The water collection box sealing structure according to claim 1, characterized in that: The upper end of the water inlet valve body (42) has circumferentially staggered vertical ribs (48), and the water inlet gap (40) is formed between adjacent vertical ribs (48).

7. The water collection box sealing structure according to claim 1, characterized in that: The inlet valve base (41) is sealed to the water collection box (2) by the inlet valve base sealing ring (49).

8. The water collection box sealing structure according to any one of claims 1 to 7, characterized in that: The spring force of the outlet valve spring (33) is greater than that of the inlet valve spring (44).

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