A pumping device and a refrigeration and humidification device

Abstract

The present invention relates to a pumping device and a refrigeration and humidification device. The pumping device includes a housing, a water pump, and a water passing component. The water pump is disposed inside the housing, and a water inlet adapted for docking with an external component is provided on the housing. The water passing component includes a rotary water sealing member for closing or opening the water inlet. The rotary water sealing member includes a fixed part and a rotary part. The rotary part is adapted to rotate between a water sealing position where it is offset from the fixed part to close the water inlet and a water passing position where it coincides with the fixed part to open the water inlet under the action of the external component. The pumping device provided by the present invention can open or close the water inlet in a rotary opening and closing manner through the above-mentioned water passing component provided at the water inlet of the housing, improve the water passing flow rate of the water pump, and have better sealing performance, avoiding the problem of water residue caused by plugging and unplugging opening and closing.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to a pumping device and a refrigeration and humidification device. Background Art

[0002] In traditional refrigeration and humidification devices such as cooling fans or evaporative humidifiers, the water pump is placed in the water tank. When the user extracts the water tank, it will be affected by the interference of the water pump pipeline structure. The user needs to manually disassemble the water pump and the pipeline connected to the water pump. Therefore, when the user extracts the water tank, an additional disassembly step is added, and the operation is very inconvenient.

[0003] In related prior arts, the water pump is arranged outside the water tank, and the opposite water discharge is realized by respectively arranging check valves at the water inlet end of the water pump and the water outlet end of the water tank. Although it is not necessary to disassemble the pipeline connected to the water pump when extracting the water tank, however, since the water pump intakes water from the gap around the valve stem of the check valve, it is impossible to achieve a large flow of water passing through, the water intake is small, and for a high-lift tower cooling fan, the large-flow usage requirements cannot be met. And with the repeated pulling of the water tank during long-term use and the multiple pluggings and unplugging of the check valve, residual water is also likely to accumulate at the water inlet end of the water pump, affecting the user experience. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the water passing flow rate and water intake of the water pump in the existing refrigeration and humidification devices are small and residual water is easily accumulated, so as to provide a refrigeration and humidification device that effectively increases the water passing flow rate of the water pump, has better sealing performance, does not require plugging and unplugging of the water pump for water passing, and reduces residual water.

[0005] To solve the above problems, in a first aspect, the present invention provides a pumping device, which includes: a housing with a water passing cavity therein; a water pump arranged in the housing, and an inlet adapted for docking with an external component is provided on the housing; a water passing component including a rotary water sealing member for closing or opening the inlet, and the rotary water sealing member includes a fixed part and a rotary part; the rotary part is adapted to rotate between a water sealing position where it is staggered from the fixed part to close the inlet and a water passing position where it coincides with the fixed part to open the inlet under the action of the external component.

[0006] Optionally, the water passing component further includes a screw transmission member, one end of the screw transmission member abuts against the external component, and the other end passes through the rotary part and is in screw transmission cooperation with the rotary part; the screw transmission member is adapted to move axially along the inlet under the pressing or releasing action of the external component and can drive the rotary part to rotate between the water sealing position and the water passing position.

[0007] Optionally, the water passing component further includes: a fixed bushing fixedly arranged in the water passing cavity, with one end of the fixed bushing closed and the other end open, the open end of the fixed bushing extending to the water inlet, the rotary water sealing member arranged at the open end of the fixed bushing, one end of the screw drive member passing through the rotary water sealing member and extending into the fixed bushing, and the other end extending out of the housing through the water inlet; an elastic member arranged between the closed end of the fixed bushing and the screw drive member, adapted to apply a force to the screw drive member to move in a direction away from the closed end of the fixed bushing.

[0008] Optionally, a part of the edge of the open end of the fixed bushing extends circumferentially and outwardly to form the fixing part.

[0009] Optionally, the rotating part includes a rotating shaft at the center and a rotating plate fixedly arranged at one end of the rotating shaft in a fan shape, the end of the rotating shaft being adapted to extend into the fixed bushing, and a spiral groove for the screw drive member to pass through being formed in the rotating shaft.

[0010] Optionally, the screw drive member includes a counter-collision screw rod and limiting parts and pushing parts fixedly arranged at both ends of the counter-collision screw rod; wherein, the limiting parts are adapted to be in abutting and cooperating connection with the elastic member, and a positioning groove matching the shape and size of the outer peripheral wall of the end of the external member is formed on the side of the pushing part facing the external member.

[0011] Optionally, the water passing component further includes a mounting ring fixed at the water inlet, a mounting groove being arranged in a circle on the inner circumference of the mounting ring, and the outer peripheral edge of the rotating part being clamped into the mounting groove and being rotatable in the mounting groove.

[0012] In a second aspect, the present invention provides a refrigeration and humidification device, including: a machine body, a water tank, and a pumping device, the water tank being pullable out or pushed into the machine body, a water outlet and a sealing valve sealing the water outlet under normal conditions being arranged on the water tank; the pumping device being fixedly arranged in the machine body and corresponding to the position of the water tank; when the water tank is pushed into the machine body, the water passing component can push open the sealing valve to open the water outlet, and the rotating part of the rotary water sealing member can rotate to open the water inlet under the pressing action of the sealing valve, and when the water tank is pulled out of the machine body, the rotating part of the rotary water sealing member resets to seal the water inlet.

[0013] Optionally, the screw drive member of the water passing component corresponds to the position of the sealing valve. When the water tank is pushed into the machine body, the screw drive member pushes open the sealing valve and moves in a direction away from the water tank under the pressing force of the sealing valve, so as to drive the rotating part to rotate to coincide with the fixing part to open the water passing position of the water inlet.

[0014] Optionally, a water tank seat is fixedly provided at the bottom of the machine body, and a water tank lock that can slide up and down is provided on the side wall of the water tank away from the pumping device; a locking groove suitable for engaging with the water tank lock is provided on the water tank seat, and after the water tank is pushed into a preset installation position, the water tank lock is suitable for locking the water tank lock and the locking groove by pulling the water tank lock downward to limit the displacement of the water tank in the extraction direction.

[0015] Optionally, an interface structure suitable for connecting with the water inlet end of the shell is constructed at the water outlet of the water tank; a sealing member for sealing the matching gap between the water inlet end of the shell and the interface structure is arranged in the interface structure.

[0016] Optionally, the refrigeration and humidification equipment is a cooling fan or a humidifier.

[0017] The present invention has the following advantages:

[0018] The pumping device provided in the embodiment of the present invention can realize opening or closing the water inlet in a rotating opening and closing manner through the water-passing assembly arranged at the water inlet of the shell, thereby increasing the water flow rate of the water pump, and having better sealing performance, thereby avoiding the problem of water residue caused by plugging and unplugging. The refrigeration and humidification equipment provided in the embodiment of the present invention can push open the sealing valve on the water tank to open the water outlet when the water tank is pushed into the body, and the rotating part of the rotating water sealing part can rotate to open the water inlet under the pressure of the sealing valve, and when the water tank is pulled out of the body, the rotating water sealing part is reset to close the water inlet. The water flow between the pumping device and the water tank is realized by the pumping device, and compared with the existing one-way valve structure, the water flow rate is larger, which effectively increases the water flow rate of the water pump, and can meet the use requirements of some high-lift tower cooling fans for large flow rates, and compared with the one-way valve structure, the sealing performance is better, and there is no need to plug and unplug the water, and the water inlet end of the water pump is not easy to accumulate residual water, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It shows a schematic structural diagram of the water tank of the refrigeration and humidification equipment in the embodiment being pushed into the body;

[0021] Figure 2 It shows a schematic structural diagram of a water tank extraction body of a refrigeration and humidification device in an embodiment;

[0022] Figure 3 Shows an enlarged view of the structure at the locking fit between the water tank lock of the water tank and the locking groove of the water tank seat in the embodiment;

[0023] Figure 4 Shows a cross-sectional view at an angle of the water passing assembly in the water sealing position when the water tank of the refrigeration and humidification device in the embodiment is not pushed in place;

[0024] Figure 5 Shows a cross-sectional view at another angle of the water passing assembly in the water sealing position when the water tank of the refrigeration and humidification device in the embodiment is not pushed in place;

[0025] Figure 6 Shows the embodiment Figure 5 An enlarged view of the cooperation between the pumping device and the water tank;

[0026] Figure 7 Shows a schematic diagram of the cooperation between the water passing assembly in the water sealing state and the sealing valve when the water tank in the embodiment is pulled out of the machine body;

[0027] Figure 8 Shows a schematic diagram of the cooperation between the water passing assembly in the water passing state and the sealing valve when the water tank in the embodiment is pushed into the machine body;

[0028] Explanation of reference numerals:

[0029] 10, machine body; 11, water tank seat; 111, locking groove;

[0030] 20, water tank; 21, sealing valve; 22, water tank lock; 23, interface structure; 24, seal;

[0031] 30, pumping device; 31, housing; 32, water pump;

[0032] 33, water passing assembly;

[0033] 331, screw drive member; 3311, opposing lead screw; 3312, limiting portion; 3313, pushing top portion;

[0034] 332, rotary water sealing member; 3321, fixed portion; 3322, rotary portion; 33221, rotary shaft; 33222, rotary plate;

[0035] 333, fixed shaft sleeve; 334, elastic member; 335, mounting ring. Detailed implementation manners

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figures 1 to 8 As shown, this embodiment provides a pumping device 30, including a shell 31, a water pump 32, and a water passing assembly 33, the shell 31 has a water passing cavity; the water pump 32 is arranged in the shell 31, and the shell 31 is provided with a water inlet suitable for connecting with an external component; the water passing assembly 33 includes a rotating water sealing member 332 for closing or opening the water inlet, and the rotating water sealing member 332 includes a fixed part 3321 and a rotating part 3322; the rotating part 3322 is suitable for rotating between a water sealing position staggered with the fixed part 3321 to close the water inlet and a water passing position overlapped with the fixed part 3321 to open the water inlet under the action of the external component.

[0041] In the above solution, when the pumping device is not affected by an external component, the rotating part 3322 is in a water-sealing position that is offset from the fixed part 3321 to close the water inlet. When being driven by an external component, the rotating part 3322 rotates to a water-passing position that coincides with the fixed part 3321 to open the water inlet. By means of the above water-passing assembly provided at the water inlet of the housing, the water inlet can be opened or closed in a rotating opening and closing manner, which can increase the water passing flow rate of the water pump, and has better sealing performance, avoiding the problem of water residue caused by plugging and unplugging opening and closing.

[0042] Further, the water-passing assembly 33 further includes a screw transmission member 331, one end of which abuts against the external component, and the other end passes through the rotating part 3322 and is in screw transmission cooperation with the rotating part 3322; the screw transmission member 331 is adapted to move along the axial direction of the water inlet under the pressing or releasing action of the external component and can drive the rotating part 3322 to rotate between the water-sealing position and the water-passing position.

[0043] Further, this embodiment also provides a refrigeration and humidification device, including: a machine body 10, a water tank 20, and a pumping device 30. The water tank 20 can be pulled out or pushed into the machine body 10. The water tank 20 is provided with a water outlet and a sealing valve 21 that is sealed at the water outlet under normal conditions. The above external component includes the sealing valve 21. Optionally, in this embodiment, the water outlet is opened at the bottom position of the side wall of the water tank 20, and the sealing valve 21 is normally kept in a position where it seals the water outlet to ensure the sealing performance of the water tank 20. When the water tank 20 is pushed into the machine body 10, the sealing valve 21 is adapted to be docked with the pumping device 30 to open the water outlet and realize the conduction between the pumping device 30 and the water tank 20.

[0044] In the above solution, the "normal state" is the initial state in which the sealing valve 21 seals the water outlet without being affected by an external force. Further, the pumping device 30 is fixedly arranged in the machine body 10 and is located outside the water tank 20. When the water tank 20 is pushed into the machine body 10, the screw transmission member 331 of the water-passing assembly 33 can push open the sealing valve 21 to open the water outlet, and when the sealing valve 21 moves to the extreme opening position, the rotating water-sealing member 332 can rotate to open the water inlet under the pressing action of the sealing valve 21. When the water tank 20 is pulled out of the machine body 10, the rotating part 3322 of the rotating water-sealing member 332 resets to close the water inlet. By means of the above pumping device, the water passing between it and the water tank is realized. Compared with the existing one-way valve structure, the water passing flow rate is larger, effectively increasing the water passing flow rate of the water pump, and can meet the large-flow usage requirements of some high-lift tower-type cooling fans. And compared with the one-way valve structure, the sealing performance is better, there is no need to plug and unplug for water passing, and the water inlet end of the water pump is not easy to accumulate residual water, improving the user experience.

[0045] Further, one end of the screw drive member 331 is adapted to abut against the sealing valve 21, and the other end is in screw drive cooperation with the rotating part 3322; under normal conditions, the rotating part 3322 is in a water sealing position that is offset from the fixed part 3321 to close the water inlet. When the water tank 20 is pushed into the machine body 10, the screw drive member 331 is compressed under the abutting pressure of the sealing valve 21, and can drive the rotating part 3322 to rotate to a water passing position that coincides with the fixed part 3321 to open the water inlet.

[0046] Further, the fixed part 3321 is fixed relative to the water inlet and does not move. The rotating part 3322 is sleeved on the screw drive member 331 and can convert the axial movement of the screw drive member 331 into circumferential rotational movement; combined with Figure 1 、 Figure 5 、 Figure 6 、 Figure 8 As shown, when the water tank 20 is pushed into the machine body 10, the screw drive member 331 abuts against and presses on the sealing valve 21. When the sealing valve 21 moves to a preset open position, continue to push the water tank 20. The screw drive member 331 is compressed under the abutting pressure of the sealing valve 21 and drives the rotating part 3322 to rotate to a water passing position that coincides with the fixed part 3321 to open the water inlet; combined with Figures 2 to 7 When the water tank 20 is pulled out of the machine body 10, the compression of the screw drive member 331 is released, and the screw drive member 331 is reset under the action of the elastic member 334, and it drives the rotating part 3322 to rotate to a water sealing position that abuts against the fixed part 3321 to close the water inlet.

[0047] In the above solution, the water passing assembly 33 formed by the screw drive member 331 and the rotating water sealing member 332 is used as the valve body structure of the water pump 32. Compared with using a one-way valve structure in an existing pumping device to conduct water with external components, the water passing flow rate is larger, effectively increasing the water passing flow rate of the water pump 32, and can meet the large flow rate usage requirements of some high-lift tower-type cooling fans. And compared with the one-way valve structure, the sealing performance is better, there is no need to plug and unplug for water passing, and the water inlet end of the water pump 32 is not easy to accumulate residual water, improving the user experience.

[0048] Further, the water inlet is arranged on the side of the housing 31 facing the water tank 20. The housing 31 covers and fixes the entire water pump 32 therein. The housing 31 serves as both a fixing member for fixing the water pump 32 and a water guiding structure for docking with the water tank 20. Optionally, the water pump 32 is a submersible pump.

[0049] In the present application, the pumping device 30 is independently arranged from the water tank 20, and the pumping device 30 is fixed in the body 10 located outside the water tank 20. When the user removes the water tank 20 for cleaning or adding water, there is no need to remove the water pump 32. The operation is convenient and easy to clean, and it can effectively avoid the water pump 32 being fixed inside the water tank 20, and excessive pipeline interference affecting the experience when pumping the water tank 20.

[0050] Optionally, the fixed portion 3321 is fixedly arranged at the water inlet, and the rotating portion 3322 is rotatably arranged at the water inlet. The rotating portion 3322 and the fixed portion 3321 are arranged closely together along the axial direction of the water inlet, and the rotating portion 3322 rotates between a water-passing position overlapping with the fixed portion 3321 and a water-sealing position staggered from the fixed portion 3321. When the rotating portion 3322 is in the water-sealing position, the rotating portion 3322 and the fixed portion 3321 can form a complete closed shape that matches the shape and size of the water inlet, and can completely close the water inlet, with better sealing performance.

[0051] In existing cooling fans or humidifiers, the external water pump 32 mostly uses a one-way valve to directly collide with the one-way valve on the water tank 20, which will have some residual water. Repeated use will accumulate a large amount of residual water. If the residual water connection position is not cleaned regularly, it will cause problems such as leakage of the body 10. Moreover, the structure of two one-way valves directly colliding with each other takes in water from the circumferential gap between the valve stem and the water inlet, and the water intake is limited. If the water quality is poor and there are many impurities, long-term use will cause blockage at the water passage. In the present application, the water-passing component 33 of the pumping device 30 adopts a spiral transmission part 331 and a rotating water sealing part 332 to rotate and pass water for water intake, which can reduce the residual water in the collision process of the two one-way valves. Compared with the conventional one-way valve circumferential water passage, the water flow rate of the collision and rotation water passage has a larger opening area and a larger water flow rate, which reduces the risk of impurities clogging the water pump 32.

[0052] Optionally, when the rotating part 3322 is in the water-sealing position, the edge portions at both ends thereof can overlap with the fixed part 3321. Preferably, the overlapping portion of the rotating part 3322 and the fixed part 3321 is provided with a water-sealing structure for sealing the gap therebetween, so as to ensure the sealing effect of the shell 31 when the water-sealing part is in the closed position, and avoid water leakage at the water inlet.

[0053] Optionally, the water passing component 33 further includes: a fixed bushing 333 and an elastic member 334, which are fixedly arranged in the housing 31. One end of the fixed bushing 333 is closed and the other end is open. The open end of the fixed bushing 333 extends to the water inlet. The rotary water sealing member 332 is arranged at the open end of the fixed bushing 333. One end of the screw drive member 331 passes through the rotary water sealing member 332 and extends into the fixed bushing 333, and the other end is located outside the housing 31. The elastic member 334 is arranged between the closed end of the fixed bushing 333 and the screw drive member 331, and is adapted to apply a force to the screw drive member 331 to move in a direction away from the closed end of the fixed bushing 333.

[0054] Further, referring to Figure 5 and Figure 6 As shown, the housing 31 includes a first housing part that matches the shape and size of the water pump 32, a second housing part for water inlet located on the water outlet side close to the water tank 20, and a narrowing connecting part connected between the first housing part and the second housing part. The second housing part is a cylindrical structure with one end closed. The closed end of the second housing part faces the water outlet side of the water tank 20. The water inlet is opened at the closed end of the second housing 31. An installation structure for installing and fixing the fixed bushing 333 is formed in the narrowing connecting part.

[0055] Optionally, a part of the edge of the open end of the fixed bushing 333 bends and extends circumferentially outward to form the fixing part 3321. The fixing part 3321 is a fan-shaped plate-like structure formed by bending and extending the circumferential edge part of the open end of the fixed bushing 333.

[0056] Optionally, the central angle corresponding to the fixing part 3321 is greater than 180°.

[0057] Optionally, the rotary part 3322 and the fixing part 3321 have the same shape and size, and both are fan-shaped structures with a central angle greater than 180°. Preferably, the central angles of the rotary part 3322 and the fixing part 3321 are α respectively, and 240° ≥ α > 180°.

[0058] Preferably, in this embodiment, the central angles corresponding to the fixing part 3321 and the rotary part 3322 are both greater than 180 degrees, so as to ensure that they overlap and fit at least partially both in the water sealing position and the water passing position, ensuring the sealing performance.

[0059] Preferably, in this embodiment, the central angle corresponding to the fixed portion 3321 and the rotating portion 3322 is 240°. When in the water flow position, the opening size of the water inlet occupies about 1 / 3 of the entire water inlet cross section, and the water inlet flow rate is much greater than the water inlet amount of the existing water pump 32 entering the gap between the water inlet and the outer periphery of the one-way valve stem.

[0060] Optionally, the rotating part 3322 includes a rotating shaft 33221 located in the center and a rotating plate 33222 fixedly arranged at one end of the rotating shaft 33221 in a fan shape; the end of the rotating shaft 33221 is suitable for extending into and being limited in the fixed sleeve 333, and a spiral groove is provided in the rotating shaft 33221 for the spiral transmission member 331 to pass through. The spiral groove penetrates the rotating shaft 33221 in the axial direction, and a spiral body is formed on the outside of the spiral transmission member 331. Through the cooperation between the spiral body of the spiral transmission member 331 and the spiral groove, the spiral transmission member 331 can drive the rotating part 3322 to rotate when it moves along the spiral groove.

[0061] Optionally, the rotating shaft 33221 is a columnar structure, and the outer diameter of the rotating shaft 33221 is slightly smaller than the inner diameter of the fixed sleeve 333 so that it can be inserted into the fixed sleeve 333 and rotate in the fixed sleeve 333. The rotating plate 33222 and the rotating shaft 33221 can be fixedly connected or integrally formed.

[0062] See also Figure 8 As shown, in this embodiment, when the spiral transmission member 331 is moved toward the water pump 32 by the resisting pressure, it can drive the rotating part 3322 to rotate clockwise, so that the rotating part 3322 overlaps with the fixed part 3321, and the water inlet is opened. Figures 5 to 7 As shown, when the water tank 20 is pulled out, the spiral transmission member 331 moves in the direction away from the water pump 32 under the action of the elastic member 334, thereby driving the counterclockwise rotation to rotate to a position offset from the fixed portion 3321 to close the water inlet. The pumping device 30 can form a self-seal in time, and has good airtightness and water-proofing properties, which can effectively reduce residual water.

[0063] Optionally, the screw drive member 331 includes a butt screw 3311, and a limiting portion 3312 and a pushing portion 3313 fixedly provided at both ends of the butt screw 3311; wherein, the limiting portion 3312 is adapted to be in abutting cooperation with the elastic member 334, and a positioning groove is formed on one side of the pushing portion 3313 facing the sealing valve 21 and is configured to have a shape and size that match the outer peripheral wall of the end portion of the sealing valve 21. By adopting the design of the above-mentioned positioning groove, when the water tank 20 is pushed in, a stable and reliable cooperation can be formed between the butt screw 3311 and the sealing valve 21, and they are not easily separated, which can improve the stability of the cooperation between the butt screw 3311 and the sealing valve 21.

[0064] Optionally, the sealing valve 21 includes a valve stem. The positioning groove of the pushing portion 3313 matches the shape and size of one end of the valve stem close to the pumping device 30. When the water tank 20 is pushed in, the end portion of the valve stem can be inserted into the positioning groove to compress and extrude the butt screw 3311, thereby driving the rotation portion 3322 to rotate.

[0065] Optionally, as shown in Figure 8 The limiting portion 3312 is a disc-shaped structure. The outer diameter of the limiting portion 3312 is slightly smaller than the inner diameter of the fixed sleeve. The elastic member 334 is a spring compressed between the closed end of the fixed shaft sleeve 333 and the limiting portion 3312.

[0066] Optionally, the water passing assembly 33 further includes a mounting ring 335 fixed at the water inlet. A mounting groove is provided on the inner circumference of the mounting ring 335. The outer peripheral edge of the rotation portion 3322 is snapped into the mounting groove and can rotate in the mounting groove. In this embodiment, the mounting groove provided on the inner circumference of the mounting ring 335 allows the rotation portion 3322 to freely rotate in the circumferential direction and can form an axial limit on the rotation portion 3322 to prevent the rotation portion 3322 from moving axially. The mounting ring 335 can be installed and fixed at the water inlet by means of clamping, screws or welding.

[0067] Optionally, the mounting ring 335 and the fixing portion 3321 are integrally formed. Alternatively, the fixing portion 3321 and the mounting ring 335 are fixedly connected.

[0068] Optionally, as shown in Figure 2 、 Figure 3 and Figure 5As shown, a water tank base 11 is fixedly arranged at the bottom of the body 10. A slidable-up-and-down water tank lock 22 is arranged on the side wall of the water tank 20 away from the pumping device 30. A lock groove 111 adapted to be engaged with the water tank lock 22 is arranged on the water tank base 11. After the water tank 20 is pushed into the preset installation position, the water tank lock 22 can be locked with the lock groove 111 by pulling down the water tank lock 22, so as to limit the displacement of the water tank 20 in the extraction direction.

[0069] Optionally, the water tank lock 22 includes a stop plate slidable up and down. A handle part is fixedly arranged on the outer wall surface of the stop plate, which is convenient for users to manually operate. The water tank lock 22 further includes an insertion rib fixedly arranged at the lower end of the stop plate. A buckle is formed on the insertion rib. The lock groove 111 is a clamping groove formed on the bottom wall of the water tank base 11. After the water tank 20 is pushed into the preset position in the water tank base 11, the water outlet of the water tank 20 can be accurately docked with the pumping device 30. Pull down the stop plate so that the insertion rib at its bottom can be inserted into and engaged with the lock groove 111, ensuring stable cooperation and non-separation between the water connection assembly 33 and the water tank 20.

[0070] Optionally, an interface structure 23 adapted to be docked with the water inlet end of the housing 31 is constructed at the water outlet of the water tank 20. A seal 24 for sealing the mating gap between the water inlet end of the housing 31 and the interface structure 23 is arranged in the interface structure 23.

[0071] In this embodiment, the inner circumference of the interface structure 23 can be docked with the outer circumference of the water inlet end of the housing 31. Preferably, a diversion channel is formed in the interface structure 23. The diversion channel is tapered and expanded from the side of the water outlet of the water tank 20 towards the direction close to the pumping device 30. Such a setting can enable it to be quickly positioned and docked with the water inlet end of the housing 31. The seal 24 is a sealing sleeve fixed on the inner circumference of the interface structure 23. When the water tank 20 is installed in place, the water inlet end of the housing 31 can be inserted into the interface structure 23, and the sealing sleeve seals between the two.

[0072] Optionally, in this embodiment, the seal valve 21 at the water outlet of the water tank 20 includes a valve rod, a spring and a sealing cap. The sealing cap is located inside the water tank 20 to block the water outlet. One end of the valve rod is connected to the sealing cap and the other end is limited outside the water tank 20. A limit boss is formed at the other end of the valve rod. The spring is compressively arranged between the limit boss and the outer wall of the water tank 20, and is adapted to apply a force to the limit boss to move away from the water tank 20, so as to drive the sealing cap at the other end of the valve rod to closely adhere to the water outlet to seal the water outlet.

[0073] In this embodiment, the water tank 20 and the water pump 32 are two independent structures, which can be independently disassembled and connected without pipes. At the same time, by setting the water passing component 33 at the water inlet end of the pumping device 30, compared with setting a traditional one-way valve structure at the water inlet end of the pumping device 30, the water passing flow rate of the water pump 32 is effectively increased. At the same time, compared with the ordinary one-way valve structure, the sealing performance is better, and the residual water is reduced. When the water tank 20 is pushed into the machine body 10, the water inlet end of the housing 31 is inserted into the interface structure 23 to form a diversion channel. The end of the screw transmission part 331 pushes open the sealing valve 21 to open the water outlet of the water tank 20, and the water in the water tank 20 can flow out from the water outlet. Continuing to push the water tank 20 inward, the screw transmission part 331 is pressed against the sealing valve 21 and compressed, thereby driving the rotating part 3322 to rotate to a position coinciding with the fixed part 3321, opening the water inlet of the housing 31, and the water in the water tank 20 can enter the housing 31. At this time, starting the water pump 32 can pump out the water in the water tank 20 and transport it to the wet curtain assembly located above the water tank 20. When the water tank 20 is pulled outwards, the elastic part 334 pushes the screw transmission part 331 to extend outwards, thereby driving the rotating part 3322 to rotate in the reverse direction to a water sealing position where it is butted against the fixed part 3321 to close the water inlet.

[0074] Optionally, the refrigeration and humidification device is a cold fan or a humidifier. Of course, in this embodiment, the water pump 32 adopting the rotary opening and closing water inlet mode is not limited to being applied to cold fans or humidifiers, and it is also applicable to water purifiers or water dispensers.

[0075] Preferably, the refrigeration and humidification device is a tower cold fan.

[0076] Optionally, the refrigeration and humidification device further includes a wet curtain assembly and a fan assembly.

[0077] The working process and principle of the refrigeration and humidification device provided in this embodiment are as follows:

[0078] In this embodiment, a sealing valve 21 is provided at the water outlet of the water tank 20, which is in contact with the spiral transmission member 331 of the water passing assembly 33 of the pumping device 30. The pumping device 30 includes a housing 31, a water pump 32 arranged in the housing 31, and a water passing assembly 33 is provided at the water inlet end of the housing 31 near the water tank 20, which is connected to the water tank 20. The water passing assembly 33 includes a rotating water sealing member 332, a spiral transmission member 331, a fixed shaft sleeve 333, and an elastic member 334. When the water tank 20 is installed, the sealing valve 21 of the water tank 20 is first connected and sealed with the water-passing component 33 at the front end of the pumping device 30. The water tank 20 continues to enter, and the sealing valve 21 of the water tank 20 presses against the collision screw rod 3311 at the front end of the pumping device 30. The collision screw rod 3311 is compressed and enters into the fixed sleeve 333, driving the rotating part 3322 on the collision screw rod 3311 to rotate, and the fixed part 3321 and the rotating part 3322 of the rotating water sealing part 332 are unscrewed to realize water passing, with a large water flow rate, reducing the risk of poor water quality and impurities clogging the water pump 32. When the water tank 20 is taken out, the sealing valve 21 of the water tank 20 disengages from the collision screw 3311, canceling the force applied to the collision screw 3311, and the collision screw 3311 moves outward to reset under the action of the elastic member 334, and the rotating part 3322 rotates back to the normal position under the drive of the collision screw 3311, thereby sealing the pumping device 30, locking water, and reducing residual water.

[0079] In the present embodiment, the water-passing component 33 of the pumping device 30 adopts a counter-rotating opening and closing method to intake water. The water flow rate is large and the structure is reliable. At the same time, the residual water in the counter-rotating mechanism formed by the existing two one-way valves can be minimized to the greatest extent. The one-way valve structure used in traditional refrigeration and humidification equipment cannot achieve a large flow rate when passing water. For some tower-type cooling fan high-lift equipment, it cannot meet the demand for large flow rate use. When the one-way valve spring structure is disconnected and reset, residual water will be generated. Repeated plugging and unplugging will cause the residual water to accumulate, affecting the user experience and easily causing overflow, leakage and other problems.

[0080] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A pumping device, characterized in that, Comprising: A housing (31) with a water passage cavity therein; A water pump (32) disposed within the housing (31), and an inlet adapted for docking with an external component is provided on the housing (31); A water passage assembly (33) including a rotary water sealing member (332) for closing or opening the inlet, and the rotary water sealing member (332) includes a fixed portion (3321) and a rotary portion (3322); The rotary portion (3322) is adapted to rotate between a water sealing position where it is offset from the fixed portion (3321) to close the inlet and a water passage position where it coincides with the fixed portion (3321) to open the inlet under the action of the external component; The water passage assembly (33) further includes: A screw drive member (331), one end of which abuts against the external component, and the other end passes through the rotary portion (3322) and is in screw drive cooperation with the rotary portion (3322); The screw drive member (331) is adapted to move axially along the inlet under the pressing or releasing action of the external component and can drive the rotary portion (3322) to rotate between the water sealing position and the water passage position; The water passage assembly (33) further includes: A fixed bushing (333) fixedly disposed within the water passage cavity, one end of the fixed bushing (333) is closed and the other end is open, one end of the screw drive member (331) passes through the rotary water sealing member (332) and extends into the fixed bushing (333), and the other end extends out of the housing (31) through the inlet; An elastic member (334) disposed between the closed end of the fixed bushing (333) and the screw drive member (331), and is adapted to apply a force to the screw drive member (331) to move in a direction away from the closed end of the fixed bushing (333).

2. The pumping device according to claim 1, characterized in that, The open end of the fixed bushing (333) extends to the inlet, and the rotary water sealing member (332) is disposed at the open end of the fixed bushing (333).

3. The pumping device according to claim 2, characterized in that, The circumferential part edge of the open end of the fixed bushing (333) bends and extends outward to form the fixed portion (3321).

4. The pumping device according to claim 3, characterized in that, The rotary portion (3322) includes a rotary shaft (33221) at the center and a rotary plate (33222) fixedly disposed at one end of the rotary shaft (33221) and having a fan shape. The end of the rotary shaft (33221) is adapted to extend into the fixed bushing (333), and a spiral groove for the screw drive member (331) to pass through is formed in the rotary shaft (33221).

5. The pumping device according to claim 1, characterized in that, The screw drive member (331) includes a counter - impact screw rod (3311) and a limit portion (3312) and a push - top portion (3313) fixedly disposed at both ends of the counter - impact screw rod (3311); Wherein, the limit portion (3312) is adapted to abut and cooperate with the elastic member (334), and a positioning groove matching the shape and size of the outer peripheral wall of the end of the external component is formed on the side of the push - top portion (3313) facing the external component.

6. The pumping device according to any one of claims 1-5, characterized in that, The water passage assembly (33) further includes a mounting ring (335) fixed at the inlet; The inner circumference of the mounting ring (335) is provided with a circle of mounting grooves, and the outer peripheral edge of the rotating part (3322) is inserted into the mounting groove and can rotate in the mounting groove.

7. A refrigeration and humidification device, characterized in that, include: Body (10); A water tank (20) which can be drawn out or pushed into the machine body (10), wherein the water tank (20) is provided with a water outlet and a sealing valve (21) which is sealed at the water outlet under normal conditions; The pumping device (30) according to any one of claims 1 to 6, wherein the pumping device (30) is fixedly arranged in the machine body (10) and corresponds to the position of the water tank (20); When the water tank (20) is pushed into the machine body (10), the water-passing assembly (33) can push open the sealing valve (21) to open the water outlet, and the rotating portion (3322) of the rotating water sealing component (332) can rotate to open the water inlet under the pressure of the sealing valve (21); when the water tank (20) is pulled out of the machine body (10), the rotating portion (3322) of the rotating water sealing component (332) returns to its original position to close the water inlet.

8. The refrigeration and humidification device according to claim 7, characterized in that, The spiral transmission member (331) of the water-passing assembly (33) corresponds to the position of the sealing valve (21); when the water tank (20) is pushed into the machine body (10), the spiral transmission member (331) pushes open the sealing valve (21) and moves in a direction away from the water tank (20) under the action of the resistance pressure of the sealing valve (21), thereby driving the rotating part (3322) to rotate to a water-passing position where it overlaps with the fixed part (3321) and opens the water inlet.

9. The refrigeration and humidification device according to claim 7 or 8, characterized in that, A water tank seat (11) is fixedly provided at the bottom of the machine body (10), and a water tank lock buckle (22) that can slide up and down is provided on the side wall of the water tank (20) away from the pumping device (30); The water tank seat (11) is provided with a locking groove (111) suitable for engaging with the water tank lock buckle (22); after the water tank (20) is pushed into a preset installation position, the water tank lock buckle (22) is pulled downward to lock the water tank lock buckle (22) with the locking groove (111), so as to limit the displacement of the water tank (20) in the withdrawal direction.

10. The refrigeration and humidification device according to claim 7 or 8, characterized in that, The water outlet of the water tank (20) is provided with an interface structure (23) suitable for connecting with the water inlet end of the water-passing component (33); A sealing member (24) is provided in the interface structure (23) for sealing the matching gap between the water inlet end of the water-passing component (33) and the interface structure (23).

11. The refrigeration and humidification device according to claim 7 or 8, characterized in that, The refrigeration and humidification equipment is a cooling fan or a humidifier.

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