Water softeners and ejectors

Abstract

The present application relates to a water softener and an ejector. The ejector comprises: a main body having an inner cavity and a water inlet pipe, a salt supply pipe, and a water outlet pipe connected to the inner cavity; wherein there are at least two water inlet pipes and at least two water outlet pipes, and the two are arranged in a one-to-one correspondence, and the flow areas of different water outlet pipes are different; a connector having at least two independently arranged connecting pipes, each connecting pipe is connected to a corresponding water inlet pipe and a corresponding water outlet pipe. The above-mentioned ejector avoids overlapping between the water inlet pipe and the water outlet pipe, thereby avoiding mutual influence between regeneration solutions of different concentrations, and improving the utilization rate and regeneration rate of the salt solution.

Description

Technical Field

[0001] The present application relates to the field of water softening technology, and in particular to a water softener and an ejector. Background Art

[0002] Ion exchange resin tanks are commonly used as softening materials in water softeners. After a certain amount of softened water is produced through ion exchange, the resin reaches saturation with hardness ions, necessitating resin regeneration. An ejector mixes salt solution from the salt supply device with raw water to create a regeneration solution, which then enters the resin tank to displace the hardness ions within the resin, allowing the softener to continue operating. However, the concentration of the regeneration solution remains constant during regeneration, resulting in low salt solution utilization and regeneration rates. Summary of the Invention

[0003] Based on this, it is necessary to provide a water softener and an ejector to address the problem of low utilization and regeneration rate of the brine.

[0004] An ejector, comprising:

[0005] The main body comprises an inner cavity and a water inlet pipe, a salt supply pipe and a water outlet pipe connected to the inner cavity;

[0006] a connecting piece, disposed in the inner cavity;

[0007] Among them, there are at least two water inlet pipes and water outlet pipes, and the two are arranged in a one-to-one correspondence, and the flow areas of different water outlet pipes are different; the connecting part has at least two independently arranged connecting pipes, and each connecting pipe is connected to a corresponding water inlet pipe and a corresponding water outlet pipe.

[0008] After the regeneration state begins, the above-mentioned ejector can selectively open different water inlet pipes and water outlet pipes according to the different regeneration liquids required to control the flow of the salt solution entering the multi-way valve, thereby mixing with the same amount of raw water and providing regeneration liquids of different concentrations; through the connecting pipes of the connecting parts, different water inlet pipes and water outlet pipes can be connected to avoid overlapping between the water inlet pipes and the water outlet pipes, so as to avoid mutual influence between the regeneration liquids of different concentrations, thereby improving the utilization rate and regeneration rate of the salt solution.

[0009] In one embodiment, all the connecting pipes are staggered in the height direction of the connecting piece and are not connected to each other.

[0010] In one embodiment, each of the connecting pipes is provided with at least one positioning post, and the positioning post is connected to the inner wall of the inner cavity.

[0011] In one embodiment, each of the water outlet pipes includes a functional section and a jet section, the jet section is located downstream of the functional section in the raw water flow direction, the functional section is narrowed along the raw water flow direction and is used to generate negative pressure, and the functional sections of different water outlet pipes have different flow areas.

[0012] In one embodiment, the ejector further includes nozzles corresponding to the number of the water outlet pipes, each of the nozzles is detachably arranged in the functional section of each of the water outlet pipes, and the flow cross-section of each nozzle is narrowed along the flow direction of the raw water, and the flow cross-sections of the nozzles in different functional sections have different flow areas.

[0013] In one embodiment, the ejector further includes throats corresponding to the number of the water outlet pipes, each of the throats is detachably arranged in the jet section of each of the water outlet pipes, the throats are respectively connected to the nozzles, and the flow area of the throats is larger than the flow area of the functional section.

[0014] In one embodiment, the ejector further includes a number of filters corresponding to the number of the water inlet pipes, and each of the filters is detachably disposed in the water inlet pipe.

[0015] In one embodiment, the connecting member is located between the filter and the nozzle, and each of the connecting pipes has a first opening and a second opening, each of the first openings is connected to the corresponding filter, and each of the second openings is connected to the corresponding nozzle.

[0016] In one embodiment, the main body includes a first cover body, a second cover body and a third cover body that are detachably connected. The third cover body and the first cover body are respectively arranged on opposite sides of the second cover body. One side of the second cover body is snapped together with the first cover body to form a first cavity connected to the bypass valve of the water softener, and the other side of the second cover body is snapped together with the third cover body to form the inner cavity.

[0017] In one embodiment, the connecting member and the third cover are an integrally formed structure.

[0018] In one embodiment, the main body includes a first cover body, a second cover body and a third cover body that are detachably connected. The third cover body and the first cover body are respectively arranged on opposite sides of the second cover body. One side of the second cover body is snapped together with the first cover body to form a first cavity connected to the bypass valve of the water softener, and the other side of the second cover body is snapped together with the third cover body to form the inner cavity.

[0019] A water softener comprises the ejector mentioned above.

[0020] The ejector can connect different water inlet and outlet pipes to avoid overlapping between the water inlet and outlet pipes, thereby avoiding mutual influence between regeneration liquids of different concentrations and improving the utilization rate and regeneration rate of the salt solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of an ejector, a bypass valve, and a multi-way valve in one embodiment;

[0022] Figure 2 for Figure 1 A schematic diagram of the ejector shown;

[0023] Figure 3 for Figure 2 A partial schematic diagram of the ejector shown;

[0024] Figure 4 for Figure 2 a cross-sectional view of the ejector shown;

[0025] Figure 5 for Figure 4 A partial enlarged view of the ejector shown;

[0026] Figure 6 for Figure 2 An exploded view of the ejector shown;

[0027] Figure 7 for Figure 2 A schematic diagram of the connecting parts in the ejector shown;

[0028] Figure 8 for Figure 7 Cross-section of the connector shown.

[0029] Reference numerals:

[0030] 10. Ejector; 20. Multi-way valve; 30. Bypass valve; 100. Main body; 101. Inner cavity; 102. Water inlet pipe; 103. Salt supply pipe; 104. Water outlet pipe; 104a. Functional section; 104b. Ejection section; 105. First cavity; 110. First cover; 120. Second cover; 130. Third cover; 140. Fastener; 200. Connector; 201. Connecting pipe; 201a. First opening; 201b. Second opening; 300. Nozzle; 400. Throat; 500. Filter. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise specified or limited, the terms "initial," "connected," "connect," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] The water softener has three states: water supply, regeneration, and replenishment. When the water softener is in the water supply state, raw water flows through the bypass valve 30 and the ejector 10 to the multi-way valve 20 and into the resin tank. The resin in the resin tank absorbs hardness ions (calcium ions, magnesium ions, etc.) in the raw water, thereby softening the raw water. When the water softener is in the regeneration state, the raw water mixes with the salt solution in the salt supply device to form a regeneration solution. The regeneration solution passes through the water softener's multi-way valve 0 and enters the resin tank, where it regenerates the resin in the resin tank, ensuring sufficient regeneration ions in the resin tank. After the salt solution in the salt supply device has been used for a period of time, it needs to be replenished. At this time, the water softener is in the replenishment state, and raw water needs to be supplied to the salt supply device to dissolve more salt in the salt supply device, thereby forming more salt solution for use.

[0038] The regeneration liquid enters the resin tank and undergoes a regeneration reaction with the resin. The principle is: the regeneration ions (sodium ions) in the regeneration liquid replace the hardness ions (calcium ions, magnesium ions, etc.) adsorbed by the resin. The sodium ions in the absorbed regeneration liquid exchange with the depleted resin particles, restoring some of the resin's softening ability. The solution containing calcium and magnesium ions is then rapidly discharged under the propulsion of the gas, thus achieving regeneration.

[0039] Please refer to Figure 1 In one embodiment, the ejector 10 is connected to the water softener's salt supply, the water softener's multi-way valve 20, and the water softener's bypass valve 30. The bypass valve 30 is connected to the water supply, which provides raw water. The ejector 10 is located between the bypass valve 30 and the multi-way valve 20. It can direct liquid from the salt supply or bypass valve 30 to the multi-way valve 20, where it enters the softener's resin tank. Furthermore, the ejector 10 can direct liquid from the multi-way valve 20 to the salt supply, thereby replenishing the salt supply. The composition of the liquid directed by the ejector 10 is selected based on the softener's current state.

[0040] Specifically, please refer to Figures 2 to 4The ejector 10 includes a main body 100 and a connecting piece 200. The main body 100 has an inner cavity 101 and a water inlet pipe 102, a salt supply pipe 103 and a water outlet pipe 104 connected to the inner cavity 101. The water outlet pipe 104 is connected to the multi-way valve 20, and the salt supply pipe 103 is connected to the salt supply device. The connecting piece 200 is arranged in the inner cavity 101.

[0041] Among them, there are at least two water inlet pipes 102 and water outlet pipes 104, and the two are set in a one-to-one correspondence, and the flow areas of different water outlet pipes 104 are different; the connecting piece 200 has at least two independently set connecting pipes 201, and each connecting pipe 201 is connected to a corresponding water inlet pipe 102 and a water outlet pipe 104.

[0042] For example, the water softener has at least two regeneration states that can produce regeneration liquid of different concentrations. When one of the water inlet pipes 102 is opened to form a regeneration liquid with a lower concentration, the corresponding water outlet pipe 104 that is specially used for the circulation of low-concentration regeneration liquid is opened through the connector 200; when the other water inlet pipe 102 is opened to form a regeneration liquid with a higher concentration, the corresponding water outlet pipe 104 that is specially used for the circulation of high-concentration regeneration liquid is opened through the connector 200.

[0043] After the regeneration state of the above-mentioned ejector 10 begins, different water inlet pipes 102 and water outlet pipes 104 can be selectively opened according to the different regeneration liquids required to control the flow rate of the salt solution entering the multi-way valve 20, thereby mixing with the same amount of raw water and providing regeneration liquids of different concentrations; through the connecting pipe 201 of the connecting piece 200, different water inlet pipes 102 and water outlet pipes 104 can be connected to avoid overlapping between the water inlet pipes 102 and the water outlet pipes 104, so as to avoid mutual influence between the regeneration liquids of different concentrations, thereby improving the utilization rate and regeneration rate of the salt solution.

[0044] It should be noted that when the water softener is in any regeneration state, the raw water flows through the water inlet pipe 102 and the inner cavity 101 to the water outlet pipe 104 and generates a negative pressure. Under the action of negative pressure, the salt solution enters the water outlet pipe 104 through the salt supply device and mixes with the raw water to form a regeneration liquid. The regeneration liquid flows through the water outlet pipe 104 to the multi-way valve 20.

[0045] For example, when it is necessary to provide regeneration liquids of varying concentrations from high to low to the water softener, the outlet pipe 104 with a smaller flow area is first opened to draw in more saline solution for mixing with the raw water, thereby forming a high-concentration regeneration liquid. The high-concentration regeneration liquid then enters the resin tank of the water softener through the multi-way valve 20 for sufficient ion exchange. As regeneration progresses, the number of ions that need to be exchanged decreases. At this point, the outlet pipe 104 with a larger flow area is switched to open to draw in less saline solution for mixing with the raw water, thereby forming a low-concentration regeneration liquid. The low-concentration regeneration liquid then enters the resin tank of the water softener through the multi-way valve 20. Providing regeneration liquid with a lower concentration at this stage does not waste saline solution, nor does it hinder the regeneration effect, and is more conducive to improving the utilization rate of saline solution and the regeneration rate.

[0046] For example, in other embodiments, when it is necessary to provide regeneration fluids of varying concentrations from low to high to low to high concentrations to the water softener, the outlet pipe 104 with a larger flow area is opened first to draw in less saline solution to mix with the raw water, thereby forming a low-concentration regeneration fluid. As regeneration continues, the outlet pipe 104 with a smaller flow area is opened to draw in more saline solution to mix with the raw water, thereby forming a high-concentration regeneration fluid.

[0047] Please refer to Figures 6 to 8 All the connecting pipes 201 are staggered in the height direction of the connecting piece 200 and are not connected to each other.

[0048] It should be noted that the height direction is Figure 6 By the above arrangement, all the connecting pipes 201 are not connected to each other, so as to avoid the overlap between the water inlet pipe 102 and the water outlet pipe 104, and to avoid the mutual influence between the regeneration liquids of different concentrations.

[0049] In this embodiment, all the connecting pipes 201 are in a straight line. In other embodiments, all the connecting pipes 201 can also be in a wavy shape or other shapes.

[0050] For further information, please refer to Figure 7 Each connecting pipe 201 is provided with at least one positioning post, which is connected to the inner wall of the inner cavity 101. In this way, the connecting member 200 can be prevented from shifting in position within the inner cavity 101.

[0051] Specifically, a positioning hole is provided on the inner wall of the inner cavity 101 , and a positioning post is inserted into the positioning hole to achieve fixed positioning of the connecting member 200 in the inner cavity 101 .

[0052] In this embodiment, the positioning post is cylindrical, and accordingly, the positioning hole is also a circular hole. In other embodiments, the positioning post can also be prismatic or other shapes, and accordingly, the positioning hole can also be a square hole or other shapes.

[0053] Please refer to Figure 5 Each water outlet pipe 104 includes a functional section 104a and a jet section 104b. The jet section 104b is located downstream of the functional section 104a in the raw water flow direction. The functional section 104a is narrowed along the raw water flow direction and is used to generate negative pressure. The functional sections 104a of different water outlet pipes 104 have different flow areas.

[0054] It should be noted that functional section 104a is the raw water inlet. With this arrangement, raw water in the water inlet pipe 102 passes through functional section 104a, where its flow area suddenly decreases at the constricted position. This causes the raw water's flow rate to suddenly increase, generating a negative pressure. Under this negative pressure, saline is drawn from the salt supply pipe into the ejector section 104b, thus achieving saline siphoning in the ejector 10.

[0055] For example, when it is necessary to provide different regeneration liquids with decreasing concentrations to the water softener, the outlet pipe 104 of the functional section 104a with a smaller flow area is opened first to absorb more salt solution and mix with the raw water, thereby forming a high-concentration regeneration liquid; and as the regeneration continues, the ions that need to be exchanged also decrease. At this time, the outlet pipe 104 of the functional section 104a with a larger flow area is switched to be opened to absorb less salt solution and mix with the raw water, thereby forming a low-concentration regeneration liquid.

[0056] Please refer to Figure 4 The ejector 10 also includes nozzles 300 corresponding to the number of outlet pipes 104. Each nozzle 300 is detachably mounted within a functional section 104a of each outlet pipe 104. The flow cross-section of each nozzle 300 narrows along the direction of raw water flow, with nozzles 300 in different functional sections 104a having different flow areas. This achieves a narrowing of the functional sections 104a, while the nozzles 300 are detachably mounted within the functional sections 104a, further facilitating flexible configuration of different flow cross-sections.

[0057] Here, please refer to Figure 4 The flow areas at one end of the nozzles 300 of different outlet pipes 104 are the same and the flow areas at the other end of the nozzles 300 are different. In other embodiments, the narrowing structure may be directly cast in the functional section 104a, which is not limited in this application.

[0058] Please refer to Figure 4 The ejector 10 further includes a number of throat pipes 400, corresponding to the number of outlet pipes 104. Each throat pipe 400 is detachably mounted within the jet section 104b of each outlet pipe 104. The throat pipe 400 communicates with the nozzle 300, and the flow area of the throat pipe 400 is greater than the flow area of the functional section 104a. Thus, the detachable assembly of the throat pipe 400 within the jet section 104b facilitates flexible configuration of the flow cross-section.

[0059] It should be noted that, in some other embodiments, the flow cross section may be directly cast in the jet section 104b, and this application does not limit this.

[0060] Please refer to Figure 6 and Figure 4 The ejector 10 further includes a filter screen 500 corresponding to the number of the water inlet pipe 102, and each filter screen 500 is detachably arranged in the water inlet pipe 102. In this way, impurities in the regeneration liquid output from the water outlet pipe 104 are filtered to prevent the regeneration effect from being affected.

[0061] Please refer to Figure 4 The connector 200 is located between the filter 500 and the nozzle 300, and each connecting pipe 201 has a first opening 201a and a second opening 201b. Each first opening 201a is connected to the corresponding filter 500, and each second opening 201b is connected to the corresponding nozzle 300. In this way, the connector 200 can smoothly connect the corresponding water inlet pipe 102 and the corresponding water outlet pipe 104.

[0062] In this embodiment, the lengths of each connecting pipe 201 can be the same or different. That is, the distances between the first opening 201a and the second opening 201b of each connecting pipe 201 can be equal or unequal, as long as they can connect to a corresponding water inlet pipe 102 and a corresponding water outlet pipe 104.

[0063] In this embodiment, the first opening 201a and the second opening 201b are both circular and have the same diameter. In other embodiments, the first opening 201a and the second opening 201b may also be of other shapes and have different opening sizes.

[0064] Please refer to Figure 4 The main body 100 includes a first cover body 110, a second cover body 120 and a third cover body 130 that are detachably connected. The third cover body 130 and the first cover body 110 are respectively arranged on opposite sides of the second cover body 120. One side of the second cover body 120 is snapped together with the first cover body 110 to form a first cavity 105 that is connected to the bypass valve 30 of the water softener. The other side of the second cover body 120 is snapped together with the third cover body 130 to form an inner cavity 101.

[0065] In this embodiment, the first cover 110, the second cover 120, and the third cover 130 are all detachably connected, facilitating quick assembly and disassembly and maintenance of the ejector 10. For example, the first cover 110 is provided with a first fixing hole, the second cover 120 is provided with a second fixing hole, and the third cover 130 is provided with a third fixing hole. Fasteners 140, which may be screws or bolts, are inserted through the first, second, and third fixing holes to secure the covers. In other embodiments, the first, second, and third covers 110, 120, and 130 may be integrally formed.

[0066] Please refer to Figure 4 The connecting member 200 and the third cover 130 are integrally formed as follows, which facilitates the rapid assembly and disassembly of the ejector 10.

[0067] Please refer to Figure 1 In one embodiment, the water softener includes the ejector 10 described above.

[0068] Specifically, the water softener also includes a bypass valve 30, a multi-way valve 20, a resin tank, and a salt supply device. When the water softener is in the water supply mode, raw water enters the resin tank through the bypass valve 30, the ejector 10, and the multi-way valve 20 to soften the raw water. When the water softener is in the regeneration mode, regeneration fluid enters the resin tank through the multi-way valve 20 to regenerate the resin tank. When the water softener is in the water replenishment mode, raw water enters the salt supply device through the bypass valve 30 and the ejector 10 to replenish the salt supply device.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An ejector (10), characterized in that: include: The main body (100) has an inner cavity (101) and a water inlet pipe (102), a salt supply pipe (103) and a water outlet pipe (104) in communication with the inner cavity (101); A connecting member (200) is disposed in the inner cavity (101); There are at least two water inlet pipes (102) and at least two water outlet pipes (104), and the two are arranged in a one-to-one correspondence, and the flow areas of different water outlet pipes (104) are different; the connecting piece (200) has at least two independently arranged connecting pipes (201), and each connecting pipe (201) is connected to a corresponding one of the water inlet pipes (102) and one of the water outlet pipes (104); All the connecting pipes (201) are staggeredly distributed in the height direction of the connecting piece (200) and are not interconnected.

2. The ejector (10) according to claim 1, characterized in that Each of the connecting pipes (201) is provided with at least one positioning post, and the positioning post is connected to the inner wall of the inner cavity (101).

3. The ejector (10) according to claim 1, characterized in that Each of the water outlet pipes (104) comprises a functional section (104a) and a jet section (104b), wherein the jet section (104b) is located downstream of the functional section (104a) in the raw water flow direction, and the functional section (104a) is narrowed along the raw water flow direction and is used to generate negative pressure, and the functional sections (104a) of different water outlet pipes (104) have different flow areas.

4. The ejector (10) according to claim 3, characterized in that The ejector (10) further comprises nozzles (300) corresponding in number to the water outlet pipelines (104); each nozzle (300) is detachably arranged in the functional section (104a) of each water outlet pipeline (104); and the flow cross section of each nozzle (300) is narrowed along the flow direction of the raw water; the flow cross sections of the nozzles (300) in different functional sections (104a) have different flow areas.

5. The ejector (10) according to claim 4, characterized in that The ejector (10) further comprises throat pipes (400) corresponding in number to the water outlet pipes (104), each of the throat pipes (400) being detachably arranged in the jet section (104b) of each of the water outlet pipes (104), the throat pipes (400) being in communication with the nozzles (300), and the flow area of the throat pipes (400) being greater than the flow area of the functional section (104a).

6. The ejector (10) according to claim 4, characterized in that The ejector (10) further comprises filter screens (500) corresponding in number to the water inlet pipelines (102), and each filter screen (500) is detachably disposed in the water inlet pipeline (102).

7. The ejector (10) according to claim 6, characterized in that The connecting member (200) is located between the filter (500) and the nozzle (300), and each connecting pipe (201) has a first opening (201a) and a second opening (201b), each first opening (201a) is connected to the corresponding filter (500), and each second opening (201b) is connected to the corresponding nozzle (300).

8. The ejector (10) according to claim 1, characterized in that The main body (100) includes a first cover (110), a second cover (120) and a third cover (130) that are detachably connected. The third cover (130) and the first cover (110) are respectively arranged on opposite sides of the second cover (120). One side of the second cover (120) is snap-fitted with the first cover (110) to form a first cavity (105) that is connected to a bypass valve (30) of a water softener. The other side of the second cover (120) is snap-fitted with the third cover (130) to form the inner cavity (101).

9. The ejector (10) according to claim 8, characterized in that The connecting member (200) and the third cover body (130) are an integrally formed structure.

10. A water softener, characterized in that: The invention comprises an ejector (10) as claimed in any one of claims 1 to 9.

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