A water supply system for a negative ion generator

Abstract

The present invention relates to a water supply system for a negative ion generator, comprising: a water storage tank, a diverter device connected to the bottom of the water storage tank, a guide device connected to the diverter device, and a water collecting tank arranged below the guide device; the guide device is connected to the water collecting tank using a water drawing structure; the guide device comprises: a first guide structure and a second guide structure; the first guide structure and the second guide structure are arranged side by side with an interval, and the first guide structure is symmetrically arranged on opposite sides of the second guide structure; the first guide structure is connected to the diverter device for receiving liquid water transported downward by the diverter device; the second guide structure is respectively connected to the diverter device and the water collecting tank for respectively obtaining the liquid water transported downward by the diverter device and the liquid water drawn from the water collecting tank by the water drawing structure.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and in particular to a water supply system for a negative ion generator. Background Art

[0002] With the development of science and technology and the rapid economic growth, people are increasingly demanding environmental quality and attaching greater importance to their health. Research has shown that negative oxygen ion concentration is positively correlated with human health. When the concentration of negative oxygen ions exceeds 20,000 per cubic centimeter of air, it has a health-promoting effect on the body, even enhancing the body's natural healing ability, eliminating pathogens and reducing the spread of disease, thereby strengthening the body's immunity, antibacterial ability, and improving health.

[0003] Furthermore, negative ions can actively capture small dust particles, causing them to condense and settle, effectively removing airborne dust particles 2.5 microns (PM2.5) and smaller, and even 1 micron in size. Experiments have shown that when the concentration of negative ions in the air reaches 20,000 / cm³, the amount of airborne dust can be reduced by over 98%. Therefore, negative ions can also effectively reduce the harmful effects of PM2.5 on human health.

[0004] At present, the negative ion generator adopted is mainly based on the mode of forming water negative ions of charged water molecules and spraying outwards, and in the process of generating negative ions and spraying negative ions outwards, all need the participation of water, for this reason, how to realize the stable water supply to the negative ion generator has become the prerequisite that the negative ion generator can work stably.In addition, because the whole process needs the participation of water, it is inevitable to cause part of the water to adhere to the housing side wall around the negative ion generator and condense into water droplets or settle and condense into water droplets under the action of gravity, and these waters will become more and more as the time increases. If these condensed waters can not be utilized, then serious water resource waste will be caused.For example, Chinese patent application CN116053936A discloses a water negative ion generating device and water negative ion spraying structure thereof, which realizes corresponding effect due to the mode of spraying water negative ions, and for this reason very easily condensed water droplets appear around it, and causes the waste of water resource. Summary of the Invention

[0005] The object of the present invention is to provide a water supply system for a negative ion generator.

[0006] To achieve the above-mentioned object of the invention, the present invention provides a water supply system for a negative ion generator, comprising: a water storage tank, a diverter connected to the bottom of the water storage tank, a guide device connected to the diverter, and a water collection tank arranged below the guide device;

[0007] The guide device is connected to the water collecting tank using a water drawing structure;

[0008] The guiding device includes: a first guiding structure and a second guiding structure;

[0009] The first guiding structure and the second guiding structure are arranged side by side with an interval, and the first guiding structure is symmetrically arranged on two opposite sides of the second guiding structure;

[0010] The first guiding structure is connected to the diverter device and is used to receive the liquid water transported downward by the diverter device;

[0011] The second guiding structure is connected to the diverter device and the water collecting tank respectively, and is used to obtain the liquid water transported downward by the diverter device and the liquid water drawn from the water collecting tank by the water drawing structure respectively.

[0012] According to one aspect of the present invention, the first guide structure includes: a first guide body and a first end cover detachably connected to the first guide body;

[0013] The first guide body includes: a first support plate, a first guide tube connected to the rear side of the first support plate, and a first positioning ring provided on the front side of the first support plate;

[0014] The first support plate is provided with a plurality of first through holes penetrating the body thereof, and the first positioning rings are coaxially arranged in a one-to-one correspondence with the first through holes;

[0015] The output ends of the first conduits are respectively connected to the first through holes;

[0016] The first end cover is in the shape of a plate as a whole and is provided with a plurality of first ejection holes penetrating the body thereof;

[0017] The first ejection hole is a tapered hole, and its large opening end is located on the front side of the first end cover;

[0018] A first annular protrusion is provided on the rear side of the first end cover coaxially with the first ejection hole and is used for engaging with the first positioning ring;

[0019] The length of the first annular protrusion embedded in the first positioning ring is smaller than the axial length of the first positioning ring.

[0020] According to one aspect of the present invention, the second guide structure includes: a second guide body and a second end cover detachably connected to the second guide body;

[0021] The second guide body includes: a second support plate, a second guide pipe and a water-drawing guide pipe connected to the rear side of the second support plate, and a second positioning ring and a third positioning ring provided on the front side of the second support plate;

[0022] The second support plate is provided with a second through hole and a third through hole penetrating the body thereof, the second positioning ring is coaxially arranged corresponding to the second through hole, and the third positioning ring is coaxially arranged corresponding to the third positioning ring;

[0023] The second positioning ring is located above the third positioning ring;

[0024] The output end of the second conduit is connected to the second through hole;

[0025] The output end of the water-drawing conduit is connected to the third through hole;

[0026] The second end cover is in the shape of a plate as a whole and is provided with a plurality of second ejection holes penetrating the body thereof;

[0027] The second ejection hole is a tapered hole, and its large opening end is located on the front side of the second end cover;

[0028] A second annular protrusion is provided on the rear side of the second end cover coaxially with the first ejection hole; wherein the second annular protrusion at the top is engaged with the second positioning ring, and the second annular protrusion at the bottom is abutted against the third positioning ring;

[0029] The length of the second annular protrusion embedded in the second annular protrusion is less than the axial length of the second annular protrusion;

[0030] An axial length of the second annular protrusion is greater than an axial length of the third positioning ring.

[0031] According to one aspect of the present invention, the water drawing structure comprises: a first water drawing body for drawing water;

[0032] The first water-drawing body adopts a columnar structure, a portion of which is inserted into the water-drawing conduit, and the insertion end of the first water-drawing body extends into the third positioning ring, and the other end of the first water-drawing body is in contact with the bottom of the water collecting tank;

[0033] The cross section of the insertion end of the first water-drawing body is matched with the cross section of the third positioning ring.

[0034] According to one aspect of the present invention, the water-drawing structure further comprises: a pressure-applying component;

[0035] The pressure-applying assembly includes: a pressure-applying head and a controller;

[0036] The pressure applying head is arranged around the insertion end of the first water drawing body;

[0037] The controller is used to control the pressure applying head to apply pressure to the insertion end, so as to control the amount of water seepage from the insertion end.

[0038] According to one aspect of the present invention, the pressure head includes: a rear end pressure portion and a side pressure portion;

[0039] The rear end pressure applying portion is located on a side of the first water-drawing body away from the third positioning ring;

[0040] The side pressure applying parts are respectively arranged on the left and right sides of the first water-drawing body.

[0041] According to one aspect of the present invention, the diverter device comprises: a diverter cavity structure, a control valve provided on the diverter cavity structure, and a docking seal;

[0042] The diversion cavity structure is a concave cavity structure as a whole, and a docking joint for connecting the guide device is provided at the bottom thereof;

[0043] The butt seal is installed in the butt joint and is used to connect with the input ends of the first conduit and the second conduit in the guide device;

[0044] The butt seal comprises an outer cylinder and an inner cylinder;

[0045] The inner cylinder is coaxial with the outer cylinder and is spaced apart and arranged on the inner side of the outer cylinder, wherein the upper end of the inner cylinder is connected to the inner side of the upper end of the outer cylinder, and an annular sealing groove for sleeved with the input end of the first conduit or the second conduit is formed between the inner cylinder and the outer cylinder;

[0046] A first annular sealing protrusion is provided at the upper end of the outer cylinder, and an extending direction of the first annular sealing protrusion is parallel to the axial direction of the outer cylinder;

[0047] A plurality of second annular sealing protrusions are arranged at intervals on the outer side surface of the outer cylinder, and the extending direction of the second annular sealing protrusions is parallel to the radial direction of the outer cylinder.

[0048] According to one aspect of the present invention, the water tank is in a concave structure as a whole, and a water outlet and an air guide column for switching the control valve are provided at the bottom thereof;

[0049] The air guide column is a hollow tubular structure, which is vertically arranged at the center of the bottom of the water tank and is used to connect the inner and outer sides of the water tank.

[0050] According to one aspect of the present invention, it further comprises: a condensate recovery shell;

[0051] The condensate recovery shell includes: a support enclosure, and a reflux structure disposed inside the support enclosure;

[0052] The diverter device is supported on the upper side of the condensate recovery shell;

[0053] The water collecting tank is inserted into the bottom end of the condensate recovery shell, and the water collecting tank is located below the reflux structure;

[0054] A window is provided on the front side plate of the supporting enclosure, and the window is opposite to the guiding device;

[0055] The reflux structure is arranged on the inner side of the front side plate and below the window;

[0056] The return flow structural member is in a plate-like structure as a whole, one end of which in the width direction is fixedly connected to the front side plate, and the other end of which extends obliquely in a direction close to the water collecting tank.

[0057] According to one aspect of the present invention, the reflux structure comprises: a middle converging portion, flow guide portions respectively provided at both ends of the middle converging portion in the length direction, a bottom support and a flow guide blocking member;

[0058] The guide portions are symmetrically arranged at both ends of the middle converging portion, and the guide portions are inclined with an angle formed between them and the middle converging portion;

[0059] The bottom support is fixedly supported on the lower side of the return structure, and the bottom support and the front side plate are arranged parallel to each other;

[0060] Along the width direction of the return structure, the bottom support is adjacent to and spaced apart from an end of the return structure away from the front side plate;

[0061] The flow guide blocking member includes: a supporting portion, a flow guide blocking portion and a rotation adjustment portion;

[0062] The supporting portion and the diversion blocking portion are both long strip-shaped plates;

[0063] The flow guide blocking portion is provided on one side of the supporting portion in the width direction, and the flow guide blocking portion is vertically connected to the supporting portion;

[0064] The rotation adjustment portion is arranged on the lower side of the supporting portion;

[0065] The rotation adjustment portion is connected to the bottom support;

[0066] The supporting portion is located at the lower side of the guide portion and is arranged to abut against the guide portion;

[0067] Along the width direction of the return flow structural component, the flow guide blocking portion is arranged to abut against an end of the flow guide portion away from the front side plate.

[0068] According to one embodiment of the present invention, the water supply system achieves a quantitative water transport process from top to bottom, effectively ensuring sufficient water supply. Furthermore, by providing a water collection tank and a water-drawing structure, recovered condensate can be reintroduced into the guide device for reuse, greatly improving water recycling efficiency and making the present invention more water-saving.

[0069] According to one solution of the present invention, the present invention can fully transport the water collected in the water collection tank to the second guide structure by providing a water drawing structure. In addition, the provided water drawing structure can be more beneficial to the control accuracy of the water absorption and delivery, and is more beneficial to ensuring the operational stability and reliability of the water negative ion generator.

[0070] According to one embodiment of the present invention, a reflux structure having a certain width is provided below the window, thereby forming a platform below the water negative ion generator to receive water. This allows excess water in the water negative ion generator provided in the guide device to fall and collect during the output of water negative ions. In addition, the reflux structure is arranged in an inclined manner, so that water that falls on the reflux structure can slide down and collect, thereby fully recovering the water.

[0071] According to one solution of the present invention, curved guides are provided at both ends of the return structure, allowing water collected at the edges to flow more easily to the center for collection in the water collection tank below. Furthermore, the inclined guides, with a greater angle relative to the center collection portion, allow the accumulated water to flow more easily downward, effectively preventing it from accumulating at the ends of the return structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 is a perspective view schematically showing a water supply system according to one embodiment of the present invention;

[0073] Figure 2 is a rear perspective view schematically illustrating a water supply system according to one embodiment of the present invention;

[0074] Figure 3 is a structural diagram schematically showing a guiding device according to an embodiment of the present invention;

[0075] Figure 4 is a diagram schematically showing the internal structure of a guiding device according to one embodiment of the present invention;

[0076] Figure 5 is a rear view schematically showing a guide device according to one embodiment of the present invention;

[0077] Figure 6 is a rear view schematically showing a first end cap according to one embodiment of the present invention;

[0078] Figure 7 is a rear view schematically showing a second end cap according to one embodiment of the present invention;

[0079] Figure 8 is a structural diagram schematically showing a water drawing structure according to one embodiment of the present invention;

[0080] Figure 9 is a top view schematically showing a water drawing structure according to one embodiment of the present invention;

[0081] Figure 10 is a structural diagram schematically showing a flow diversion device according to one embodiment of the present invention;

[0082] Figure 11 is a structural diagram schematically showing a butt seal according to one embodiment of the present invention;

[0083] Figure 12 is a structural diagram schematically showing a water storage tank according to one embodiment of the present invention;

[0084] Figure 13 is a structural diagram schematically showing a water collecting tank according to one embodiment of the present invention;

[0085] Figure 14 is a structural diagram schematically showing a condensate recovery shell according to one embodiment of the present invention;

[0086] Figure 15 FIG. 1 is a structural diagram schematically showing a flow guide blocking member according to an embodiment of the present invention. DETAILED DESCRIPTION

[0087] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0088] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0089] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not limited to the following embodiments.

[0090] Combine Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, a water supply system for a negative ion generator of the present invention comprises: a water tank 1, a diverter 2 connected to the bottom of the water tank 1, a guide device 3 connected to the diverter 2, and a water collection tank 4 arranged below the guide device 3. In this embodiment, the water tank 1 is used to store water (such as pure water) required for equipment operation, and the diverter 2 is connected to the water tank 1 for controlling the quantitative flow of water in the water tank 1 into the diverter 2 to achieve the function of transporting to the guide device 3. The guide device 3 is used to receive the water transported by the diverter 2 to meet the water demand of the water negative ion generator. In this embodiment, the water negative ion generator can be installed in the guide device 3 to achieve full and effective treatment of the transported water. In this embodiment, the water negative ions generated by the water negative ion generator will have the disadvantage of partially falling and gathering during the process of outward transport. Especially when the amount of water negative ions generated is large enough, this gathering phenomenon is more obvious, so that the gathered water negative ions re-condense into water droplets. In this embodiment, a water collecting tank 4 is provided below the guiding device 3 to further collect condensed water in the above process.

[0091] In this embodiment, the guiding device 3 is connected to the water collecting tank 4 using a water drawing structure 5, that is, the guiding device 3 can draw water from the water collecting tank 4 into the guiding device 3 through the water drawing structure 5, so that it can re-participate in the generation process of water negative ions.

[0092] Through the above-mentioned arrangement, the water supply system of the present invention realizes a quantitative water transport process from top to bottom, effectively ensuring sufficient water supply. In addition, by providing the water collection tank 4 and the water drawing structure 5, the recovered condensate can be reintroduced into the guide device 3 for reuse of the water supply, greatly improving the water recycling efficiency and making the present invention have better water-saving performance.

[0093] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, according to one embodiment of the present invention, the guiding device 3 includes: a first guiding structure 31 and a second guiding structure 32. In this embodiment, the first guiding structure 31 and the second guiding structure 32 are arranged side by side with an interval, and the first guiding structure 31 is symmetrically arranged on opposite sides of the second guiding structure 32; in this embodiment, there are two first guiding structures 31,

[0094] In this embodiment, the first guide structure 31 is connected to the diverter device 2 for receiving the liquid water transported downward by the diverter device 2; the second guide structure 32 is respectively connected to the diverter device 2 and the water collecting tank 4 for respectively obtaining the liquid water transported downward by the diverter device 2 and the liquid water drawn from the water collecting tank 4 by the water-drawing structure 5.

[0095] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, according to one embodiment of the present invention, the first guide structure 31 includes a first guide body 311 and a first end cap 312 detachably connected to the first guide body 311. In this embodiment, the first guide body 311 includes a first support plate 311a, a first conduit 311b connected to the rear side of the first support plate 311a, and a first positioning ring 311c disposed in front of the first support plate 311a. In this embodiment, the first support plate 311a is provided with a plurality of first through-holes extending therethrough. The first positioning rings 311c are coaxially arranged in a one-to-one correspondence with the first through-holes. The first through-holes are circular holes, and the first positioning rings 311c are circular rings. In this embodiment, the radial dimension of the first positioning rings 311c is larger than the diameter of the first through-holes. This arrangement, by using a larger first positioning ring 311c, creates a space for mounting the water negative ion generator between the first through-holes and the first positioning ring 311c, facilitating quick and effective contact of the transported water with the water negative ion generator.

[0096] In this embodiment, the output end of the first conduit 311b is connected to each of the first through-holes, while its input end is connected to the diverter 2. In this embodiment, the diameter of the hollow portion of the first conduit 311b is larger than the diameter of the first through-holes. This arrangement ensures that the first conduit 311b has an adequate water supply to the first through-holes, effectively ensuring stable operation of the water negative ion generator.

[0097] In this embodiment, the first end cap 312 is generally plate-shaped and defines a plurality of first ejection holes extending through its body. The first ejection holes are tapered, with their larger openings located at the front of the first end cap 312. In this embodiment, an annular first annular protrusion 312a is coaxially disposed on the rear side of the first end cap 312 with the first ejection holes, for engaging with the first positioning ring 311c. The length of the first annular protrusion 312a embedded in the first positioning ring 311c is less than the axial length of the first positioning ring 311c. This arrangement effectively ensures accurate positioning and installation by matching the first annular protrusion 312a with the first positioning ring 311c, while also ensuring stable positioning of the installed water negative ion generator and ensuring the stability of its position. In this embodiment, the water negative ion generator mainly includes piezoelectric ceramic sheets, circuit boards and other structures. In order to facilitate the installation of the structure in the water negative ion generator in the first guide structure 31, related structures or circuits can be further arranged around the outside of the first positioning ring 311c, thereby effectively improving the integration of the water negative ion generator and the first guide structure 31.

[0098] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, according to one embodiment of the present invention, the second guide structure 32 includes a second guide body 321 and a second end cap 322 detachably connected to the second guide body 321. In this embodiment, the second guide body 321 includes a second support plate 321a, a second conduit 321b and a water-drawing conduit 321c connected to the rear side of the second support plate 321a, and a second positioning ring 321d and a third positioning ring 321e disposed in front of the second support plate 321a. In this embodiment, the second support plate 321a has a second through hole and a third through hole extending through it. The second positioning ring 321d is coaxially arranged with the second through hole, and the third positioning ring 321e is coaxially arranged with the third positioning ring 321e. The second through hole is a circular hole, and the second positioning ring 321d is a circular ring. In this embodiment, the diameter of the second through hole is smaller than the diameter of the second positioning ring 321d, thereby forming a mounting space for the water negative ion generator between the second positioning ring 321d and the second through hole. In this embodiment, the third through hole can be configured as an oblong hole, a rectangular hole, a circular hole, etc., and the third positioning ring 321e is configured as a circular ring. The opening area of the third positioning ring 321e is larger than the opening area of the third through hole, so that a space for mounting the water negative ion generator is formed between the third positioning ring 321e and the third through hole.

[0099] In this embodiment, the second positioning ring 321d is located above the third positioning ring 321e. The output end of the second conduit 321b is connected to the second through hole, and its input end is used to connect to the diverter device 2. In this embodiment, the output end of the water-drawing conduit 321c is connected to the third through hole.

[0100] In this embodiment, the second end cap 322 is generally plate-shaped and has a plurality of second ejection holes extending through the body thereof. The second ejection holes are tapered, with their larger openings located at the front of the second end cap 322. In this embodiment, an annular second annular protrusion 322a is coaxially disposed on the rear side of the second end cap 322 with the second ejection holes. The upper second annular protrusion 322a engages with the second positioning ring 321d, while the lower second annular protrusion 322a abuts against the third positioning ring 321e. In this embodiment, the length of the second annular protrusion 322a embedded in the second annular protrusion 322a is less than the axial length of the second annular protrusion 322a, and the axial length of the second annular protrusion 322a is greater than the axial length of the third positioning ring 321e. Similarly, to facilitate the installation of the structure of the water negative ion generator in the second guide structure 32, related structures or circuits can be further arranged around the outside of the second positioning ring 321d and the third positioning ring 321e, effectively improving the integration of the water negative ion generator and the second guide structure 32.

[0101] Through the above arrangement, the interlocking connection between the second annular protrusion 322a and the second positioning ring 321d effectively ensures the installation accuracy of the second end cap 322, while also confining the water negative ion generator within the space enclosed by the second annular protrusion 322a and the second positioning ring 321d, effectively ensuring the stable installation of the water negative ion generator. The abutment arrangement of the second annular protrusion 322a and the third positioning ring 321e allows the water negative ion generator to be effectively positioned while supporting the water draw structure 5, ensuring that the water absorbed by the water draw structure 5 is effectively utilized, thereby improving the water utilization efficiency of the present invention.

[0102] Combine Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the water-drawing structure 5 includes a first water-drawing body 51 for drawing water. In this embodiment, the first water-drawing body 51 is a columnar structure, partially inserted into the water-drawing conduit 321c. The insertion end of the first water-drawing body 51 (i.e., the end of the first water-drawing body 51 inserted into the water-drawing conduit 321c) extends into the third positioning ring 321e, and the other end of the first water-drawing body 51 contacts the bottom of the water collection tank 4. In this embodiment, the cross-section of the insertion end of the first water-drawing body 51 matches the cross-section of the third positioning ring 321e.

[0103] In this embodiment, the first water-absorbing body 51 can be made of a water-absorbing fiber stick (such as a cotton stick) or other soft materials with water absorption.

[0104] Combine Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the water-drawing structure 5 further includes a pressure assembly, wherein the pressure assembly includes a pressure head 5a and a controller. In this embodiment, the pressure head 5a is disposed around the insertion end of the first water-drawing body 51; the controller is configured to control the pressure applied by the pressure head 5a to the insertion end, thereby controlling the amount of water seepage from the insertion end.

[0105] In this embodiment, the pressure head 5a includes: a rear pressure portion 5a1 and a side pressure portion 5a2; wherein the rear pressure portion 5a1 is located on the side of the first water-drawing body 51 away from the third positioning ring 321e; and the side pressure portion 5a2 is respectively provided on the left and right sides of the first water-drawing body 51. In this embodiment, the pressure head 5a forms a semi-enclosed structure for the insertion end of the first water-drawing body 51, so that the seepage surface (i.e., the side of the insertion end used for water seepage) is fully exposed. In this embodiment, the multiple parts of the pressure head 5a (the rear pressure portion 5a1 and the side pressure portion 5a2) can be used to control the pressure of the insertion end in different directions, thereby making the seepage of water more sufficient and continuous.

[0106] In this embodiment, the rear end pressure portion 5a1 and the side pressure portion 5a2 can be provided as one body or separately, and can be arranged accordingly according to specific needs.

[0107] In this embodiment, since the first water-drawing body 51 is inserted into the water-drawing conduit 321c, when the first water-drawing body 51 is controlled by the pressure head 5a, it is restricted by the wall of the water-drawing conduit 321c. The pressure control can be conveniently achieved by controlling the deformation degree of the pressure head 5a. The control structure is simple and convenient.

[0108] In this embodiment, a plurality of pressure heads 5a can be arranged at intervals along the axial direction of the first water-drawing body 51. By controlling the action sequence of the pressure heads 5a, the direction of water transport can be controlled, so that the present invention can achieve continuous water seepage. For example, by controlling the pressure heads 5a from bottom to top to apply pressure to the first water-drawing body 51, the water below can be driven to the top more quickly to achieve a sufficient supply of seepage water. If the pressure head 5a added at the bottom is far away from the seepage surface, the pressure head 5a can be further provided with a pressure portion symmetrical to the rear end pressure portion 5a1 on the side opposite to the rear end pressure portion 5a1, so that the position of the pressure head 5a applying pressure to the first water-drawing body 51 is more comprehensive, which is beneficial to further improving the ability to transport water upward.

[0109] In this embodiment, the pressure head 5a can be implemented as an airbag, which can be inflated and deflated to compress the insertion end, thereby effectively and flexibly controlling the amount of water seepage from the end. In this embodiment, when the pressure head 5a is implemented as an airbag, its controller can be implemented using an air pump assembly.

[0110] In another embodiment, the pressure head 5a can also be implemented using a memory alloy sheet or memory alloy wire, and a corresponding controller is used to control the on and off power of the pressure head 5a, so that the pressure head 5a can produce corresponding deformation to achieve pressure on the insertion end, thereby effectively and flexibly controlling the amount of water seepage at the end. In this embodiment, when the pressure head 5a is implemented using a memory alloy sheet or memory alloy wire, its controller can be implemented using a corresponding on and off power control circuit.

[0111] Through the above arrangement, the present invention can fully transport the water collected in the water collecting tank 4 to the second guide structure 32 by further providing a water drawing structure 5. In addition, the provided water drawing structure 5 can be more beneficial to the control accuracy of the water absorption and delivery, and is more beneficial to ensuring the operational stability and reliability of the water negative ion generator.

[0112] Combine Figure 3 、 Figure 4 and Figure 5 As shown, according to one embodiment of the present invention, in order to ensure the structural strength of the guide device 3, the first guide structure 31 and the second guide structure 32 can be further fixedly connected together by setting a bottom cross beam to ensure the firmness and reliability of the overall structure.

[0113] Combine Figure 10 and Figure 11As shown, according to one embodiment of the present invention, the diverter device 2 includes: a diverter cavity structure 21, a control valve 22 arranged on the diverter cavity structure 21, and a docking seal 23. In this embodiment, the diverter cavity structure 21 is an overall concave cavity structure, which specifically includes: a diverter cavity sidewall and a diverter cavity bottom; wherein the diverter cavity bottom is overall stepped, including: a cavity bottom support portion for mounting the control valve 22, a cavity bottom connecting portion for connecting the guide device 3, and a cavity bottom transition portion for connecting the cavity bottom support portion and the cavity bottom connecting portion. In this embodiment, the cavity bottom connecting portion is overall in the shape of a long strip, the cavity bottom supporting portion is overall in the shape of a plate having a length shorter than the cavity bottom connecting portion, and the length of the cavity bottom transition portion is consistent with the length of the cavity bottom supporting portion. In this embodiment, the diverter cavity sidewall is continuously arranged along the side of the diverter cavity bottom and surrounds the diverter cavity bottom to form a corresponding concave cavity structure. In this embodiment, the control valve 22 is hoisted on the lower side of the cavity bottom supporting portion. The control valve 22 comprises a drive motor, a cam connected to the drive motor's shaft, a push rod structure, and a spring. The cam rotates under the drive motor's drive, pushing the push rod structure up and down to achieve a switching action. In this embodiment, the push rod structure needs to be installed through the cavity bottom support portion. In this embodiment, by installing the control valve 22 on the cavity bottom support portion, and positioning the cavity bottom support portion higher than the cavity bottom connection portion, water flowing from the water tank 1 preferentially reaches the cavity bottom support portion, and then flows through the cavity bottom support portion to the cavity bottom connection portion.

[0114] In this embodiment, a docking joint 211 for connecting to the guide device 3 is provided at the bottom of the diversion chamber structure 21 (i.e., the chamber bottom connection part); wherein, the docking seal 23 is installed in the docking joint 211, and is used to connect to the input ends of the first conduit 311b and the second conduit 321b in the guide device 3; by arranging the docking joint 211 at a lower position of the diversion chamber structure 21, sufficient water can be transported downward at each docking joint 211 position, making the overall water flow distribution more reasonable.

[0115] like Figure 11As shown, according to one embodiment of the present invention, the docking seal 23 includes an outer cylinder 231 and an inner cylinder 232. In this embodiment, the docking seal 23 can be made of a soft material to ensure the sealing of each abutting position. In this embodiment, the inner cylinder 232 is coaxial with the outer cylinder 231 and is arranged at a distance on the inner side of the outer cylinder 231, wherein the upper end of the inner cylinder 232 is connected to the inner side of the upper end of the outer cylinder 231, and an annular sealing groove for being sleeved with the input end of the first conduit 311b or the second conduit 321b is formed between the inner cylinder 232 and the outer cylinder 231; in this embodiment, the inner diameter of the outer cylinder 231 is set to be consistent with the outer diameter of the first conduit 311b or the second conduit 321b, and the outer diameter of the inner cylinder 232 is set to be consistent with the inner diameter of the first conduit 311b or the second conduit 321b, thereby achieving a sealed fit with the input end of the first conduit 311b or the second conduit 321b, so as to ensure excellent sealing after installation.

[0116] In this embodiment, a first annular sealing protrusion 231a is provided at the upper end of the outer cylinder 231, and the extension direction of the first annular sealing protrusion 231a is parallel to the axial direction of the outer cylinder 231; the first annular sealing protrusion 231a can achieve sealing with the abutment position. Of course, to further ensure the connection stability of the first annular sealing protrusion 231a, an annular positioning groove can be provided at the position where the butt joint 211 abuts against the first annular sealing protrusion 231a. On the one hand, it can ensure the installation reliability of the first annular sealing protrusion 231a, and on the other hand, it can achieve structural sealing of the first annular sealing protrusion 231a, especially when the first annular sealing protrusion 231a is squeezed, it has a better sealing effect.

[0117] Furthermore, multiple second annular sealing protrusions 231b are spaced apart on the outer surface of the outer cylinder 231, and the extension direction of the second annular sealing protrusions 231b is parallel to the radial direction of the outer cylinder 231. In this embodiment, three second annular sealing protrusions 231b are spaced apart along the axial direction of the outer cylinder 231, and the spacing between the three second annular sealing protrusions 231b is equal. The provision of the second annular sealing protrusions 231b further achieves abutment sealing with the sidewall of the butt joint 211, further improving the sealing performance of the present invention.

[0118] Furthermore, the thickness of the outer cylinder 231 is gradually increased from top to bottom, so that it can have a better sealing performance.

[0119] like Figure 12As shown, according to one embodiment of the present invention, the water tank 1 is an overall concave structure, and a water outlet and an air guide column 11 for controlling the opening and closing of the control valve 22 are provided at its bottom, and the water outlet and the air guide column 11 are arranged adjacent to each other. In this embodiment, the water tank 1 includes a water tank bottom and a water tank side wall; wherein the water tank bottom is overall flat, and the water tank side wall is continuously arranged around the edge of the water tank bottom to enclose the water tank bottom to form an overall concave structure. In this embodiment, the air guide column 11 is a hollow tubular structure, which is vertically arranged at the center of the bottom of the water tank 1 and is used to connect the inside and outside of the water tank 1. The provision of the air guide column 11 is more conducive to ensuring the constancy of the air pressure in the water tank 1, which is beneficial to ensuring the stability of downward transportation.

[0120] Furthermore, the water tank 1 may be provided with an openable and closable water tank cover so as to form a closed space for storing water, which is beneficial to ensuring the cleanliness of the stored water.

[0121] like Figure 13 As shown, according to one embodiment of the present invention, the water collecting tank 4 is a rectangular structure with a sloped bottom and a drain outlet at the center of the bottom. Through the above arrangement, excess unused water in the water collecting tank 4 can be drained, making it easier to carry the entire device.

[0122] Combine Figure 1 、 Figure 14 and Figure 15 As shown, according to one embodiment of the present invention, a water supply system for a water negative ion generator of the present invention further includes: a condensate recovery shell 6. In this embodiment, the condensate recovery shell 6 includes: a support enclosure 61, and a return structure 62 provided on the inner side of the support enclosure 61; the diversion device 2 is supported on the upper side of the condensate recovery shell 6; the water collecting tank 4 is inserted and provided at the bottom end of the condensate recovery shell 6, and the water collecting tank 4 is located below the return structure 62. In this embodiment, a window 611a is provided on the front side plate 611 of the support enclosure 61, and the window 611a is opposite to the guide device 3. In this embodiment, the return structure 62 is provided on the inner side of the front side plate 611 and is located below the window 611a; wherein the return structure 62 is a plate-shaped structure as a whole, one end of which in the width direction is fixedly connected to the front side plate 611, and the other end extends obliquely in the direction close to the water collecting tank 4.

[0123] Through the above arrangement, the provision of a return structure 62 having a certain width below the window 611a allows a platform to be formed below the water negative ion generator a to receive water. This allows excess water from the water negative ion generator provided in the guide device to have a certain space to fall and collect during the output of water negative ions. In addition, the return structure 62 is arranged in an inclined manner, so that water that falls on the return structure 62 can slide down and collect, thereby fully recovering the water.

[0124] Combine Figure 1 、 Figure 14 and Figure 15 As shown, according to one embodiment of the present invention, the return structure 62 includes: an intermediate converging portion 621, a flow guide portion 622 respectively provided at both ends of the intermediate converging portion 621 in the longitudinal direction, a bottom support 623 and a flow guide blocking member 624. In this embodiment, the flow guide portion 622 is symmetrically provided at both ends of the intermediate converging portion 621, and the flow guide portion 622 and the intermediate converging portion 621 are inclined at an angle. In this embodiment, the bottom support 623 is fixedly supported on the lower side of the return structure 62, and the bottom support 623 and the front side plate 611 are arranged parallel to each other. Along the width direction of the return structure 62, the bottom support 623 is adjacent to and spaced apart from the end of the return structure 62 away from the front side plate 611.

[0125] Through the above arrangement, curved guide portions 622 are provided at both ends of the return structure 62, allowing water collected at the edges to flow more easily to the middle position for easy recovery in the water collection tank 4 below. In addition, the inclined guide portions 622 have a larger inclination angle relative to the middle collecting portion 621, allowing the enriched water to flow downward more easily, effectively preventing the water from accumulating at the ends of the return structure 62.

[0126] Furthermore, by providing bottom supports 623, both the intermediate collecting portion 621 and the flow guide portion 622 are reliably supported, making the structure stable. Furthermore, the bottom supports 623 also allow for positioning of the water collection tank 4 for condensate recovery, effectively ensuring accurate positioning of the water collection tank 4 and sufficient recovery of falling condensate.

[0127] In this embodiment, the flow-diverting blocking member 624 includes: a supporting portion 6241, a flow-diverting blocking portion 6242, and a rotation adjustment portion 6243; wherein the supporting portion 6241 and the flow-diverting blocking portion 6242 are both long strip-shaped plates. In this embodiment, the flow-diverting blocking portion 6242 is arranged on one side of the supporting portion 6241 in the width direction, and the flow-diverting blocking portion 6242 is vertically connected to the supporting portion 6241; the rotation adjustment portion 6243 is arranged on the lower side of the supporting portion 6241. In this embodiment, the rotation adjustment portion 6243 is connected to the bottom support 623. In this embodiment, the supporting portion 6241 is located on the lower side of the flow-diverting portion 622 and is arranged to abut against the flow-diverting portion 622; along the width direction of the return structure 62, the flow-diverting blocking portion 6242 is arranged to abut against the end of the flow-diverting portion 622 away from the front side plate 611.

[0128] Through the above-mentioned setting, the guide blocking member 624 is set at the edge of the guide part 622, which can effectively guide the condensed water at the edge position to the position of the middle collection part 621 for collection and falling, thereby avoiding the disorderly falling of the condensed water and fully improving the water recovery efficiency of the present invention.

[0129] Combine Figure 1 、 Figure 14 and Figure 15 As shown, according to one embodiment of the present invention, along the width direction of the return structure 62, an extension flange 621a is provided at one end of the middle converging portion 621 away from the front side plate 611; in this embodiment, the upper surface of the extension flange 621a is an inclined plane; wherein, the inclined plane in the direction away from the middle converging portion 621 extends obliquely in the direction close to the lower side of the extension flange 621a.

[0130] Through the above-mentioned arrangement, an extended flange 621a with an inclined plane is further provided at the end of the intermediate collection section 621, so that the inclination angle of the intermediate collection section 621 at the edge position is further increased, so that the water flowing to the edge of the intermediate collection section 621 can be more easily separated from the intermediate collection section 621, thereby improving the water recovery speed.

[0131] Combine Figure 1 、 Figure 14 and Figure 15As shown, according to one embodiment of the present invention, the length of the diversion blocking portion 6242 is greater than the length of the supporting portion 6241; wherein, one end of the diversion blocking portion 6242 is arranged flush with one end of the supporting portion 6241, and the other end thereof is arranged beyond the other end of the supporting portion 6241. In this embodiment, the diversion blocking portion 6242 is arranged at an angle beyond one end of the supporting portion 6241. In this embodiment, the upper and lower corners of the protruding end of the diversion blocking portion 6242 (i.e., the end of the diversion blocking portion 6242 that protrudes beyond the supporting portion 6241) are removed by cutting corners, and the cutting size of the upper corner is larger than the cutting size of the lower corner, so as to further form a trapezoidal structure at the protruding end of the diversion blocking portion 6242, so that the protruding end of the diversion blocking portion 6242 can match the thickness of the intermediate gathering portion 621, which is beneficial to guiding the condensed water to transition to the extended flange 621a of the intermediate gathering portion 621, so as to realize accurate and controllable falling position of the condensed water.

[0132] Combine Figure 1 、 Figure 14 and Figure 15 As shown, according to one embodiment of the present invention, the rotation adjustment portion 6243 includes a rotation sleeve 6243a and a connecting support plate 6243b. In this embodiment, the connecting support plate 6243b is an elongated plate, one end of which is fixedly connected to the lower side of the supporting portion 6241 in the longitudinal direction. The other end is used to connect to the rotation sleeve 6243a. The connecting support plate 6243b is aligned with the diversion blocking portion 6242, and the rotation sleeve 6243a is located on one side of the connecting support plate 6243b and directly below the supporting portion 6241. In this embodiment, the supporting portion 6241 and the diversion blocking portion 6242 are respectively arranged at an angle relative to the connecting support plate 6243b, and the diversion blocking portion 6242 is arranged flush with the supporting portion 6241 and flush with one end of the diversion blocking portion 6242 in the width direction of the connecting support plate 6243b.

[0133] In this embodiment, a positioning cylinder is provided on the side of the bottom support 623, thereby enabling the rotating sleeve 6243a to be nested with the positioning cylinder, thereby adjusting the tilt angle of the diversion blocker 624 to facilitate the position of the diversion portion 622. After the angle of the diversion blocker 624 is adjusted, the rotating sleeve 6243a and the positioning cylinder can be fixed using a locking member to ensure the stable installation position of the diversion blocker 624.

[0134] Combine Figure 1 、 Figure 14 and Figure 15As shown, according to one embodiment of the present invention, the support enclosure 61 includes: a front side panel 611, a right side panel 612, a left side panel 613, and a top panel 614. In this embodiment, the left side panel 613 and the right side panel 612 are respectively provided at the left and right ends of the front side panel 611, and the left side panel 613 and the right side panel 612 are located on the same side of the front side panel 611; wherein the top panel 614 is respectively connected to the top ends of the front side panel 611, the right side panel 612, and the left side panel 613. In this embodiment, the side edges of the guide portion 622 and the bottom support 623 of the return structure 62 are respectively connected to the right side panel 612 and the left side panel 613, thereby effectively increasing the installation stability of the return structure 62 and effectively enhancing the structural strength of the support enclosure 61.

[0135] Combine Figure 1 、 Figure 14 and Figure 15 As shown, according to one embodiment of the present invention, the support enclosure 61 further includes a bottom reinforcement 615. In this embodiment, the bottom reinforcement 615 includes a reinforcing crossbeam 6151 and a reinforcing longitudinal beam 6152. In this embodiment, the two ends of the reinforcing crossbeam 6151 in the longitudinal direction are respectively connected to the bottom inner sides of the right side panel 612 and the left side panel 613; two reinforcing longitudinal beams 6152 are provided in parallel with each other and are respectively connected to the bottom inner sides of the right side panel 612 and the left side panel 613; wherein, the two ends of the reinforcing longitudinal beam 6152 in the longitudinal direction are respectively connected to the reinforcing crossbeam 6151 and the bottom support 623.

[0136] The bottom end reinforcement 615 can be connected to the bottom support 623 to form an opening for limiting the water collecting box 4, so as to achieve the insertion and positioning of the water collecting box 4.

[0137] The above contents are merely examples of specific solutions of the present invention. For devices and structures not described in detail, it should be understood that they can be implemented by adopting general devices and methods available in the art.

[0138] The above description is merely one embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A water supply system for a negative ion generator, characterized in that: include: A water storage tank (1), a diverter device (2) connected to the bottom of the water storage tank (1), a guide device (3) connected to the diverter device (2), and a water collection tank (4) arranged below the guide device (3); The guiding device (3) is connected to the water collecting tank (4) using a water drawing structure (5); The guiding device (3) comprises: a first guiding structure (31) and a second guiding structure (32); The first guiding structure (31) and the second guiding structure (32) are arranged side by side with an interval, and the first guiding structure (31) is symmetrically arranged on two opposite sides of the second guiding structure (32); The first guiding structure (31) is connected to the diverter device (2) and is used to receive the liquid water transported downward by the diverter device (2); The second guiding structure (32) is connected to the diverter device (2) and the water collecting tank (4) respectively, and is used to obtain the liquid water transported downward by the diverter device (2) and the liquid water drawn from the water collecting tank (4) by the water drawing structure (5); The first guide structure (31) comprises: a first guide body (311) and a first end cover (312) detachably connected to the first guide body (311); The first guide body (311) includes: a first support plate (311a), a first guide tube (311b) connected to the rear side of the first support plate (311a), and a first positioning ring (311c) provided on the front side of the first support plate (311a); The first support plate (311a) is provided with a plurality of first through holes penetrating the body thereof, and the first positioning ring (311c) is coaxially arranged in a one-to-one correspondence with the first through holes; The output ends of the first conduits (311b) are respectively connected to the first through holes; The first end cover (312) is provided with a plurality of first ejection holes penetrating the body thereof; A first annular protrusion (312a) is provided on the rear side of the first end cover (312) coaxially with the first ejection hole and is used for engaging with the first positioning ring (311c); The second guide structure (32) comprises: a second guide body (321) and a second end cover (322) detachably connected to the second guide body (321); The second guide body (321) comprises: a second support plate (321a), a second guide tube (321b) and a water-drawing guide tube (321c) connected to the rear side of the second support plate (321a), and a second positioning ring (321d) and a third positioning ring (321e) provided on the front side of the second support plate (321a); The second support plate (321a) is provided with a second through hole and a third through hole penetrating the body thereof; the second positioning ring (321d) is coaxially arranged corresponding to the second through hole; and the third positioning ring (321e) is coaxially arranged corresponding to the third positioning ring (321e); The output end of the second conduit (321b) is connected to the second through hole; The output end of the water-drawing conduit (321c) is connected to the third through hole; The second end cover (322) is provided with a plurality of second ejection holes penetrating the body thereof; A second annular protrusion (322a) is provided on the rear side of the second end cover (322) coaxially with the first ejection hole; wherein the second annular protrusion (322a) located above is engaged with the second positioning ring (321d), and the second annular protrusion (322a) located below is arranged to abut against the third positioning ring (321e); The water-drawing structure (5) comprises: a first water-drawing body (51) for drawing water, and a pressure-applying component; The first water-drawing body (51) is partially inserted into the water-drawing conduit (321c), and the insertion end of the first water-drawing body (51) extends into the third positioning ring (321e); The pressure-applying assembly comprises: a pressure-applying head (5a) and a controller; The pressure applying head (5a) forms a semi-enclosed structure at the insertion end of the first water-drawing body (51); Along the axial direction of the first water-drawing body (51), a plurality of pressure-applying heads (5a) may be arranged at intervals; The diversion device (2) comprises: a diversion cavity structure (21), a control valve (22) arranged on the diversion cavity structure (21), and a docking seal (23); The bottom of the diversion cavity structure (21) is provided with a docking joint (211) for connecting to the guiding device (3); The butt seal (23) is installed in the butt joint (211) and is used to connect with the input ends of the first conduit (311b) and the second conduit (321b) in the guide device (3).

2. The water supply system according to claim 1, characterized in that The first end cover (312) is in a plate shape as a whole; The first ejection hole is a tapered hole, and its large opening end is located at the front side of the first end cover (312); The length of the first annular protrusion (312a) embedded in the first positioning ring (311c) is smaller than the axial length of the first positioning ring (311c).

3. The water supply system according to claim 2, characterized in that The second positioning ring (321d) is located above the third positioning ring (321e); The second end cover (322) is plate-shaped as a whole; The second ejection hole is a tapered hole, and its large opening end is located on the front side of the second end cover (322); The length of the second annular protrusion (322a) embedded in the second annular protrusion (322a) is less than the axial length of the second annular protrusion (322a); The axial length of the second annular protrusion (322a) is greater than the axial length of the third positioning ring (321e).

4. The water supply system according to claim 3, characterized in that The first water-drawing body (51) adopts a columnar structure, and the other end of the first water-drawing body (51) is arranged to contact the bottom of the water collecting tank (4); The cross section of the insertion end of the first water-drawing body (51) is matched with the cross section of the third positioning ring (321e).

5. The water supply system according to claim 4, characterized in that: The controller is used to control the pressure applying head (5a) to apply pressure to the insertion end, so as to control the amount of water seepage from the insertion end.

6. The water supply system according to claim 5, characterized in that The pressure head (5a) comprises: a rear end pressure portion (5a1) and a side pressure portion (5a2); The rear end pressure-applying portion (5a1) is located on a side of the first water-drawing body (51) away from the third positioning ring (321e); The side pressure applying parts (5a2) are respectively arranged on the left and right sides of the first water-drawing body (51).

7. The water supply system according to claim 6, characterized in that The diversion cavity structure (21) is a concave cavity structure as a whole; The docking seal (23) comprises an outer cylinder (231) and an inner cylinder (232); The inner cylinder (232) is coaxial with the outer cylinder (231) and is spaced apart and arranged on the inner side of the outer cylinder (231), wherein the upper end of the inner cylinder (232) is connected to the inner side of the upper end of the outer cylinder (231), and an annular sealing groove for sleeved with the input end of the first conduit (311b) or the second conduit (321b) is formed between the inner cylinder (232) and the outer cylinder (231); A first annular sealing protrusion (231a) is provided at the upper end of the outer cylinder (231), and the extending direction of the first annular sealing protrusion (231a) is parallel to the axial direction of the outer cylinder (231); A plurality of second annular sealing protrusions (231b) are arranged at intervals on the outer surface of the outer cylinder (231), and the extension direction of the second annular sealing protrusions (231b) is parallel to the radial direction of the outer cylinder (231).

8. The water supply system according to claim 7, characterized in that The water storage tank (1) is in a concave structure as a whole, and a water outlet and an air guide column (11) for switching control of the control valve (22) are provided at the bottom thereof; The air guide column (11) is a hollow tubular structure, which is vertically arranged at the center of the bottom of the water storage tank (1) and is used to connect the inner and outer sides of the water storage tank (1).

9. The water supply system according to claim 8, characterized in that Also includes: Condensate recovery shell (6); The condensate recovery shell (6) comprises: a supporting enclosure (61), and a reflux structural member (62) disposed inside the supporting enclosure (61); The diversion device (2) is supported on the upper side of the condensate recovery shell (6); The water collecting tank (4) is inserted into the bottom end of the condensate recovery shell (6), and the water collecting tank (4) is located below the reflux structural member (62); A window (611a) is provided on the front side plate (611) of the supporting enclosure (61), and the window (611a) is opposite to the guiding device (3); The reflux structural member (62) is arranged on the inner side of the front side plate (611) and below the window (611a); The return flow structural member (62) is a plate-shaped structure as a whole, one end of which is fixedly connected to the front side plate (611) in the width direction, and the other end of which extends obliquely in a direction close to the water collecting tank (4).

10. The water supply system according to claim 9, characterized in that The return flow structure (62) comprises: a middle collecting portion (621), flow guide portions (622) respectively provided at both ends of the middle collecting portion (621) in the length direction, a bottom support (623) and a flow guide blocking member (624); The guide portions (622) are symmetrically arranged at both ends of the middle converging portion (621), and the guide portions (622) and the middle converging portion (621) are inclined at an angle; The bottom support (623) is fixedly supported on the lower side of the return structure (62), and the bottom support (623) and the front side plate (611) are arranged parallel to each other; Along the width direction of the return structure (62), the bottom support (623) is adjacent to and spaced from an end of the return structure (62) away from the front side plate (611); The flow guide blocking member (624) comprises: a supporting portion (6241), a flow guide blocking portion (6242) and a rotation adjustment portion (6243); The supporting portion (6241) and the diversion blocking portion (6242) are both long strip-shaped plates; The flow guide blocking portion (6242) is provided on one side of the supporting portion (6241) in the width direction, and the flow guide blocking portion (6242) is vertically connected to the supporting portion (6241); The rotation adjustment portion (6243) is provided on the lower side of the supporting portion (6241); The rotation adjustment portion (6243) is connected to the bottom support (623); The supporting portion (6241) is located at the lower side of the flow guide portion (622) and is arranged to abut against the flow guide portion (622); Along the width direction of the return structure (62), the flow guide blocking portion (6242) is arranged to abut against an end of the flow guide portion (622) away from the front side plate (611).

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