A water tank and ice maker

Abstract

This invention discloses a water tank and an ice maker, relating to the field of refrigeration equipment. It includes a tank located within the ice maker's housing, with a water pump assembly inside. The tank and the ice maker's housing are connected via a coupling mechanism. The coupling mechanism includes: an extension plate assembly comprising a receiving plate fixed to the inner wall of the ice maker's housing, the receiving plate having a slot structure in which an extension unit fixed to the tank is fitted; and a locking assembly comprising a first pin groove on the receiving plate, with a pin fixed to the water pump assembly. The pin is inserted into the first pin groove, locking the coupling mechanism. This invention, by setting a coupling mechanism to connect the tank and the ice maker's housing, allows multiple water delivery units to be removed simultaneously by releasing only one fixing limit component, such as removing the tank and water pump simultaneously from the ice maker's housing, thus reducing the complexity of the cleaning process.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, specifically to a water tank and an ice maker. Background Technology

[0002] An ice maker is a refrigeration machine that produces ice by cooling water through an evaporator with a refrigerant in a refrigeration system. Depending on the principle of the evaporator and the production method, ice makers produce ice of different shapes. Generally, ice makers are classified according to the shape of the ice, such as granular ice makers, flake ice makers, plate ice makers, tube ice makers, and shell ice makers.

[0003] Existing ice makers, such as the one with Chinese patent publication number CN116857871A titled "Ice Maker," include a housing containing a water supply box, a water pump, an ice-making tray, a refrigeration system, a water inlet pipe, and a water storage tank. The ice-making tray has multiple slots for forming ice cubes. The water inlet pipe is positioned above the ice-making tray and supplies water to the slots. The water storage tank is located below the ice-making tray and collects water flowing out of the slots. A drain outlet is located at the bottom of the water storage tank. The drain outlet is connected to the water pump's inlet via a first water pipe. The water pump's outlet is connected to the water inlet via a second water pipe. The water supply box is connected to the water pump's inlet via a third water pipe. A control valve is installed on the third water pipe to control the amount of water flowing from the water supply box into the water pump. This ice maker can increase the low-temperature utilization rate of ice water and improve ice-making efficiency.

[0004] In existing ice makers, the water tank is constantly in a humid environment, which easily accumulates scale and breeds bacteria. Currently, the various water delivery units (such as the water collection tank and water pump) of the ice maker are installed and fixed to the ice maker body in a detachable manner, so that users can easily remove the corresponding water delivery units from the ice maker body for regular cleaning. However, there are still shortcomings in the existing technology. During the cleaning process, each water delivery unit must go through the process of disassembling and installing from the ice maker body, which undoubtedly increases the number of steps in the entire cleaning process. Moreover, the limited space inside the ice maker body makes it even more inconvenient to carry out the disassembly and assembly operations and connect the various water delivery units, making the entire cleaning process too cumbersome. Summary of the Invention

[0005] The purpose of this invention is to provide a water tank and an ice maker to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A water tank includes a tank body located inside an ice maker housing, a water pump assembly being provided inside the tank body, and the tank body being connected to the ice maker housing via a coupling mechanism, the coupling mechanism comprising:

[0008] The extension plate assembly includes a receiving plate fixed to the inner wall of the ice maker housing, the receiving plate having a slot structure, and an insert unit fixed to the slot body is adapted to be inserted into the slot structure.

[0009] The locking assembly includes a first pin groove formed on the receiving plate, and a pin is fixed on the pump assembly. When the pin is inserted into the first pin groove, the coupling mechanism is in a locked state.

[0010] Preferably, the receiving plate includes a base plate vertically fixed to the inner wall of the ice maker's housing, and end plates fixed at both ends of the base plate to fit against the inner wall of the ice maker's housing. The end plates form a placement space for the receiving groove above the base plate.

[0011] Preferably, the groove includes a straight groove section whose length direction is parallel to the length direction of the bottom plate, and a protruding groove section that is perpendicularly connected to the end of the straight groove section. The inner bottom of the protruding groove section is provided with a recessed part, and the recessed part is in the form of a protruding column on the outer bottom of the protruding groove section. The protruding column state constitutes the overall shape of the insertion unit.

[0012] Preferably, the slot structure includes a recessed opening on the base plate that can be adapted to the insertion unit, and a ramp groove that can coincide with the moving trajectory line of the insertion unit is provided on one side of the recessed opening.

[0013] Preferably, a magnetic block is hinged to the bottom end of the insertion unit, and an iron sleeve is fixed to the outer side of the protruding column 3.33 constituting the insertion unit. When the groove is removed from the placement space, the magnetic block and the bottom end of the insertion unit are in an open state.

[0014] Preferably, the pump assembly includes a pump body, and when the coupling mechanism is in the locked state, the pump blades of the pump body are located in the recess.

[0015] Preferably, the first pin groove is formed at the top of the end plate, and the groove body is provided with a second pin groove. The second pin groove is formed at the top of the protruding groove body. The pin includes a hoop that is fixed to the pump body ring. A locking rod that can engage with the second pin groove is fixed on one side of the hoop. A pin rod that can be adapted to engage with the first pin groove is installed at the end of the locking rod away from the hoop.

[0016] Preferably, the rod body of the pin moves through the vertical plane of the locking rod, the first pin groove has a blind hole structure at the top of the end plate, and an internal thread section adapted to the pin thread is provided on the inner wall of the bottom end of the first pin groove.

[0017] Preferably, the inner bottom of the straight groove portion is higher than the bottom of the protruding groove portion, and the inner bottom of the straight groove portion is inclined toward the bottom of the protruding groove portion.

[0018] Preferably, the ice maker is equipped with the aforementioned water tank.

[0019] In the above technical solution, the present invention provides a water tank that connects to the ice maker housing through a coupling mechanism. An extension plate assembly provides support for the tank, and a locking assembly locks the tank in place on the extension plate assembly. When cleaning is required, the pin in the locking assembly is separated from the first pin slot, allowing the water pump assembly to be removed from the ice maker housing along with the tank. This allows multiple water delivery units to be removed simultaneously by releasing only one fixing limit component, such as the tank and water pump being removed from the ice maker housing at the same time. The entire process is simple to operate, reducing the disassembly and assembly steps in the cleaning process, simplifying the procedure, and reducing the complexity of the cleaning process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the water tank body of the present invention inside the ice maker housing;

[0022] Figure 2 This is a schematic diagram of the water tank body according to the present invention;

[0023] Figure 3 This is a schematic diagram of the extended plate assembly of a water tank according to the present invention inside the ice maker housing;

[0024] Figure 4 This is a cross-sectional schematic diagram of a water pump assembly for a water tank according to the present invention, inside a protruding column;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a cross-sectional view of the insertion unit of a water tank according to the present invention within a recessed opening.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Ice maker housing; 2. Tank; 2.1. Straight tank section; 2.2. Protruding tank section; 2.3. Recessed section; 3. Extension plate assembly; 3.1. Support plate; 3.11. Base plate; 3.12. End plate; 3.2. Slot structure; 3.21. Recessed opening; 3.22. Sloping groove; 3.3. Insertion unit; 3.31. Magnetic block; 3.32. Iron sleeve; 3.33. Protruding column; 4. Locking assembly; 4.1 4.1 First pin groove; 4.2 Insert pin; 4.21 Hoop; 4.22 Clamping rod; 4.23 Pin rod; 4.24 Internal thread section; 4.25 Knob block; 4.3 Second pin groove; 5. Pump assembly; 5.1 Pump body; 5.2 Pump impeller; 5.3 Support ring; 5.4 Water outlet; 5.5 Floating ring; 5.6 Annular groove; 5.7 Annular rubber sheet; 5.8 Rubber washer; 6. Drainage pipe. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-6 This invention provides a water tank, including a tank 2 located inside an ice maker housing 1. The tank 2 is specifically a top-opening water tank box used to collect water flowing from the ice tray of the ice maker. A water pump assembly 5 is installed inside the tank 2, capable of pumping and transporting the accumulated water inside the tank 2. The tank 2 is connected to the ice maker housing 1 via a coupling mechanism, allowing the tank 2 to be installed inside the ice maker housing 1. The coupling mechanism includes:

[0031] The extension plate assembly 3 includes a receiving plate 3.1 fixed to the inner wall of the ice maker housing 1. The receiving plate 3.1 has an L-shaped cross-section, wherein the vertical surface of the receiving plate 3.1 is fixed to the inner wall surface of the ice maker housing 1. The receiving plate 3.1 is provided with a slot structure 3.2, and an insertion unit 3.3 fixed to the slot 2 is adapted to be inserted into the slot structure 3.2, so as to facilitate the positioning of the slot 2 when it is installed in the ice maker housing 1 and ensure that the slot 2 is in the correct installation position.

[0032] The locking assembly 4 includes a first pin groove 4.1 formed on the receiving plate 3.1. A pin 4.2 is fixed on the water pump assembly 5. The pin 4.2 and the water pump assembly 5 can move synchronously. When the pin 4.2 is inserted into the first pin groove 4.1, the water pump assembly 5 is located inside the tank 1 and contacts the inner wall of the tank 1, thereby restricting the tank 1 from detaching from the ice maker housing 1. At this time, the coupling mechanism is in a locked state, and the tank 2 is in a locked state at the placement position of the receiving plate 3.1.

[0033] In actual use, when it is necessary to clean the tank and water pump, the pin in the locking assembly is separated from the first pin slot, so that the water pump assembly can be taken out of the ice maker housing along with the tank. This allows multiple water delivery units to be taken out at the same time by releasing only one fixed limiting component, such as the tank and water pump being taken out of the ice maker housing at the same time. The whole process is simple to operate, reduces the disassembly and assembly steps in the entire cleaning process, simplifies the process, and helps to reduce the cumbersomeness of the cleaning process.

[0034] In another embodiment of the present invention, the receiving plate 3.1 includes a base plate 3.11 that is vertically fixed to the inner wall of the ice maker housing 1. The surface of the base plate 3.11 is parallel to the horizontal plane. Both ends of the base plate 3.11 are fixed with end plates 3.12 that are attached to the inner wall of the ice maker housing 1. The end plates 3.12 form a placement space for the trough 2 above the base plate 3.11. In actual use, the trough 1 is placed in the placement space, so that the trough 1 is located directly below the ice plate, thereby receiving the water flowing down from the ice plate. The receiving plate 3.1 provides a stable support for the trough 2 inside the ice maker housing 1.

[0035] In another embodiment of the present invention, the trough 2 includes a straight trough portion 2.1 whose length direction is parallel to the length direction of the bottom plate 3.11, and a protruding trough portion 2.2 that is perpendicularly connected to the end of the straight trough portion 2.1. The water pump assembly 5 is located inside the protruding trough portion 2.2. The trough 2 is generally L-shaped. The inner bottom of the protruding trough portion 2.2 is provided with a recess 2.3. The recess 2.3 is in the state of a protruding column 3.33 on the outer bottom of the protruding trough portion 2.2. The protruding column 3.33 forms the overall shape of the insertion unit 3.3. The protruding column 3.33 is perpendicular to the bottom surface of the trough 2. The slot structure 3.2 includes a recess 3.21 on the bottom plate 3.11 that can be adapted to the insertion unit 3.3. A ramp groove 3.22 that can coincide with the moving trajectory line of the insertion unit 3.3 is provided on one side of the recess 3.21.

[0036] In use, when the groove 2 is located within the placement space, the protruding post 3.33 constituting the insertion unit 3.3 is located within the recess 3.21, thus limiting the position of the groove 2 within the placement space. When it is necessary to remove the groove 2 from the placement space, the protruding post 3.33 constituting the insertion unit 3.3 simply moves out of the ramp groove 3.22 in the recess 3.21. During the process of the protruding post 3.33 constituting the insertion unit 3.3 moving out of the ramp groove 3.22 in the recess 3.21, the impact of the recess 3.21 on the groove is reduced. The protruding column 3.33 constituting the insertion unit 3.3 serves as a limiting stop during the initial movement process. In other words, when the protruding column 3.33 moves out of the recess 3.21, normally the bottom end of the protruding column 3.33 needs to be completely detached from the recess 3.21 before the horizontal movement of the protruding column 3.33 can be realized. However, in this application, by setting a ramp groove 3.22 on the recess 3.21, the horizontal movement of the protruding column 3.33 can occur at the same time as it moves upward, thereby accelerating the efficiency of removing the groove 2 from the placement space.

[0037] In another embodiment of the present invention, a magnetic block 3.31 is hinged to the bottom end of the insertion unit 3.3, and an iron sleeve 3.32 is fixed to the outer side of the protruding column 3.33 constituting the insertion unit 3.3. The iron sleeve 3.32 can magnetically attract the magnetic block 3.31, and at the same time can reduce the wear of the protruding column 3.33 when it is rubbed, and prevent the bottom of the recess 2.3, that is, prevent the outer end of the protruding part from being damaged. When the groove 2 is taken out from the placement space, the magnetic block 3.31 and the bottom end of the insertion unit 3.3 are in an open state.

[0038] Specifically, when the insertion unit 3.3 is located inside the recess 3.21, the bottom end of the protruding column 3.33 is inside the recess 3.21. It should be noted that the recess 3.21 penetrates the bottom plate 3.11 through a through-hole. The magnetic block 3.31, which is attracted and fixed to the iron sleeve 3.32 at the bottom end of the protruding column 3.33, extends out from the lower end of the recess 3.21. At this time, the magnetic block 3.31 restricts the insertion unit 3.3 from moving horizontally. The movement of the slot 2 in the placement space keeps it in a limited position. When the slot 2 needs to be removed from the placement space, when a horizontal force is applied to the slot 2, if the force is greater than the magnetic attraction between the magnetic block 3.31 and the iron sleeve 3.32, the magnetic block 3.31 will rotate around the hinge, thereby releasing the magnetic block 3.31 from restricting the insertion unit 3.3 from moving horizontally, so that the slot 2 can be removed from the placement space.

[0039] Furthermore, when the magnetic block 3.31 is attracted and fixed to the iron sleeve 3.32 at the bottom of the protruding column 3.33, there will also be a corresponding magnetic attraction at the bottom of the recessed part 2.3, which helps to remove iron impurities in the water flow. When the tank 2 can be removed from the placement space, the bottom of the magnetic block 3.31 and the insertion unit 3.3 are in an open state, that is, the iron sleeve 3.32 at the bottom of the magnetic block 3.31 and the insertion unit 3.3 has been separated, which is conducive to removing iron impurities at the bottom of the recessed part 2.3.

[0040] In another embodiment of the present invention, the pump assembly 5 includes a pump body 5.1. When the coupling mechanism is in the locked state, the pump blades 5.2 of the pump body 5.1 are located in the recess 2.3. At this time, the recess 2.3 constitutes the bottom pump housing of the pump body 5.1. A support ring 5.3 is fixedly sleeved on the outside of the pump body 5.1. A rubber gasket 5.8 is fixedly attached to the lower surface of the support ring 5.3 to provide a buffering and sealing effect. Multiple water flow holes 5.4 are provided on the support ring 5.3. 5.4 Evenly distributed along the annular line of the support ring 5.3, a floating ring 5.5 is provided above the support ring 5.3 and is movably sleeved with the pump body 5.1. When the floating ring 5.5 is in contact with the support ring 5.3, the floating ring 5.5 can block the water flow hole 5.4. At this time, the recessed part 2.3 is no longer connected to the inside of the tank 2, and the floating ring 5.5 is in a floating state separated from the support ring 5.3 in the tank 2. At this time, the water flow inside the tank 2 provides buoyancy for the floating ring 5.5.

[0041] The floating ring 5.5 has an annular groove 5.6 on its surface facing the supporting ring 5.3. An annular rubber sheet 5.7 is fixedly covered on the opening of the annular groove 5.6, thus forming an annular cavity on the floating ring 5.5. When the floating ring 5.5 is in contact with the supporting ring 5.3, the annular rubber sheet 5.7 of the floating ring 5.5 can block the water flow hole 5.4. In actual use, if there is water inside the tank 2, the floating ring 5.5 will separate from the supporting ring 5.3. Conversely, if there is no water inside the tank 2, the floating ring 5.5 can block the water flow hole 5.4.

[0042] In another embodiment of the present invention, a first pin groove 4.1 is formed at the top of the end plate 3.12, and a second pin groove 4.3 is formed on the groove body 2. The second pin groove 4.3 is formed at the top of the protruding groove body 2.2. The pin 4.2 includes a hoop 4.21 that is ring-fixed to the pump body 5.1. A locking rod 4.22 that can engage with the second pin groove 4.3 is fixed on one side of the hoop 4.21. The length direction of the locking rod 4.22 is flush with the horizontal plane, and the locking rod 4.22 is away from the hoop. 4.21 has a pin 4.23 installed at one end, which can be inserted into the first pin groove 4.1. A knob block 4.25 is fixed at the top of the pin 4.23. The length direction of the pin 4.23 is vertical. The rod body of the pin 4.23 moves through the vertical surface of the locking rod 4.22. Preferably, the first pin groove 4.1 has a blind hole structure at the top of the end plate 3.12. The inner wall of the bottom end of the first pin groove 4.1 has an internal thread section 4.24 that matches the thread of the pin 4.23.

[0043] In actual use, when the pump body 5.1 is located in the recessed part 2.3, at the same time, the locking rod 4.22 is also inserted into the vertical first pin groove 4.1. When the support ring 5.3 and the groove 2 provide support for the pump body 5.1, the pin 4.23 reaches the bottom of the first pin groove 4.1 where it is naturally inserted. Then, by rotating the knob block 4.25, the pin 4.23 is rotated, so that the thread of the pin 4.23 is helically matched with the internal thread section 4.24, further improving its stability. At this time, the locking rod 4.22 is engaged with the second pin groove 4.3, and the installation of the pump body 5.1 in the groove 2 is completed.

[0044] In another embodiment of the present invention, the inner bottom of the straight channel portion 2.1 is higher than the bottom of the protruding channel portion 2.2, and the inner bottom of the straight channel portion 2.1 is inclined toward the bottom of the protruding channel portion 2.2, so that the water flow inside the channel 2 can flow toward the recessed portion 2.3 in a natural state, which facilitates the water flow to gather at the recessed portion 2.3 and facilitates the pump body 5.1 to draw the water flow.

[0045] In another embodiment of the present invention, the protruding column 3.33 is a cylindrical structure in which the opening of the cylinder is fixedly connected to the bottom of the tank 2. A drain pipe 6 is connected to the protruding column 3.33, and the other end of the drain pipe 6 is connected to the water source end, such as a water storage tank. The height of the water source end is lower than the height of the tank 2. In actual use, when the water flow inside the tank 2 is consumed by ice making, when there is no water in the tank 2, the floating ring 5.5 can block the water flow hole 5.4, and the recess 2.3 is in a closed state. The pump blade 5.2 of the pump body 5.1 is located in the recess 2.3. At this time, the rotating pump blade 5.2 rotates in the closed recess 2.3, so that... The airflow in the recess 2.3 is output through the pump body 5.1, thereby creating a negative pressure in the recess 2.3. Under the action of the negative pressure, the drain pipe 6 supplies water from the water source end into the recess 2.3, and then it is delivered to the spray component of the ice maker through the pump body 5.1. The spray component sprays the water onto the ice plate, and the excess water flows back into the tank 2. When the water in the tank 2 reaches a certain depth, the floating ring 5.5 separates from the water outlet 5.4, and the water in the tank 2 re-enters the recess 2.3. At this time, the negative pressure in the recess 2.3 decreases, and the pump body 5.1 performs the next cycle of delivering the water in the recess 2.3 to the ice plate.

[0046] In other words, under normal conditions, pump body 5.1 pumps water from the recess 2.3 to the ice-making plate. The water flowing down from the ice-making plate is collected through tank 2 and then re-enters the recess 2.3 for circulation by pump body 5.1. As the ice-making plate turns the water into ice, the circulating water flow rate decreases. When the water level in tank 2 is insufficient, the buoyancy of the float ring 5.5 is insufficient, which can block the water outlet 5.4. The recess 2.3 is in a closed state, and the rotating pump blades 5.2 output the airflow in the recess 2.3 through pump body 5.1, thereby creating a negative pressure in the recess 2.3, which causes the drainage pipe 6 to supply water from the water source end into the recess 2.3. This process ensures a continuous supply of water, with the supply exceeding the consumption for ice making. When the water level in tank 2 increases, the floating ring 5.5 rises, allowing the water in tank 2 to re-enter the recessed portion 2.3. The drain pipe 6 also stops supplying water due to reduced suction. Through this process, the water source for ice making is kept fresh. That is, new water is added only when the water in tank 2 from the previous cycle is used up, maintaining the freshness of the water source. This helps reduce the mixing of unused water from the previous ice-making cycle into the newly added water in the next cycle, preventing the water in the tank from deteriorating and contaminating the ice blocks due to prolonged exposure, and improving the hygiene of the produced ice blocks.

[0047] In another embodiment of the present invention, the ice maker is provided with the aforementioned water tank.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water tank, comprising a tank (2) located within an ice maker housing (1), characterized in that, The tank (2) is equipped with a water pump assembly (5), and the tank (2) is connected to the ice maker housing (1) via a coupling mechanism, the coupling mechanism comprising: The extension plate assembly (3) includes a receiving plate (3.1) fixed to the inner wall of the ice maker housing (1), the receiving plate (3.1) having a slot structure (3.2), and an insertion unit (3.3) fixed to the slot body (2) being adapted to be inserted into the slot structure (3.2). The locking assembly (4) includes a first pin groove (4.1) formed on the receiving plate (3.1), and a pin (4.2) is fixed on the pump assembly (5). When the pin (4.2) is inserted into the first pin groove (4.1), the coupling mechanism is in a locked state.

2. A water tank according to claim 1, characterized in that, The receiving plate (3.1) includes a base plate (3.11) that is vertically fixed to the inner wall of the ice maker housing (1). Both ends of the base plate (3.11) are fixed with end plates (3.12) that are attached to the inner wall of the ice maker housing (1). The end plates (3.12) form a placement space for the receiving groove (2) above the base plate (3.11).

3. A water tank according to claim 2, characterized in that, The groove (2) includes a straight groove section (2.1) whose length direction is parallel to the length direction of the bottom plate (3.11), and a protruding groove section (2.2) that is perpendicularly connected to the end of the straight groove section (2.1). The inner bottom of the protruding groove section (2.2) is provided with a recessed part (2.3). The recessed part (2.3) is in the state of a protruding column (3.33) on the outer bottom of the protruding groove section (2.2). The state of the protruding column (3.33) constitutes the overall shape of the insertion unit (3.3).

4. A water tank according to claim 3, characterized in that, The slot structure (3.2) includes a recess (3.21) on the base plate (3.11) that can be adapted to the insertion unit (3.3), and a ramp groove (3.22) is provided on one side of the recess (3.21) that can coincide with the moving trajectory line of the insertion unit (3.3).

5. A water tank according to claim 4, characterized in that, The bottom end of the insertion unit (3.3) is hinged with a magnetic block (3.31), and the outer side of the protruding column 3.33 constituting the insertion unit (3.3) is fixed with an iron sleeve (3.32). When the groove (2) is taken out from the placement space, the magnetic block (3.31) and the bottom end of the insertion unit (3.3) are in an open state.

6. A water tank according to claim 5, characterized in that, The pump assembly (5) includes a pump body (5.1), and when the coupling mechanism is in the locked state, the pump blades (5.2) of the pump body (5.1) are located in the recess (2.3).

7. A water tank according to claim 6, characterized in that, The first pin groove (4.1) is opened at the top of the end plate (3.12). The groove body (2) is provided with a second pin groove (4.3). The second pin groove (4.3) is opened at the top of the protruding groove body (2.2). The pin (4.2) includes a hoop (4.21) that is fixed to the pump body (5.1). A locking rod (4.22) that can engage with the second pin groove (4.3) is fixed on one side of the hoop (4.21). A pin (4.23) that can be adapted to engage with the first pin groove (4.1) is installed at the end of the locking rod (4.22) away from the hoop (4.21).

8. A water tank according to claim 7, characterized in that, The rod of the pin (4.23) moves through the vertical plane of the clamp (4.22). The first pin groove (4.1) has a blind hole structure at the top of the end plate (3.12). The inner wall of the bottom end of the first pin groove (4.1) is provided with an internal thread section (4.24) that is compatible with the thread of the pin (4.23).

9. A water tank according to claim 8, characterized in that, The bottom of the inner groove of the straight groove section (2.1) is higher than the bottom of the groove of the protruding groove section (2.2), and the bottom of the inner groove of the straight groove section (2.1) is inclined toward the bottom of the groove of the protruding groove section (2.2).

10. An ice maker, characterized in that, The ice maker is provided with a water tank as described in any one of claims 1-9.

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