Salt valve and water softener

Abstract

The utility model relates to the technical field of water softeners, and provides a salt valve and a water softener. The salt valve comprises a base and a floating assembly. A first channel is formed in the base, the floating assembly comprises a floater and a sealing piece, one end of the floater is connected with the sealing piece, the floater and the sealing piece can vertically move relative to the base, a first cavity is formed in the floater, the floater is provided with a communication structure used for being communicated with the salt box, and a floating cavity is formed in the position, corresponding to the upper portion of the communication structure, of the first cavity. The first cavity is communicated with the second channel, and the second channel is communicated with the first channel; in the first sealing state, the floating assembly is located at the first position, and the sealing piece is in sealing fit with the first channel. According to the salt valve provided by the utility model, the defect that the salt valve in the prior art cannot seal the salt water flow channel after water replenishing is completed is overcome, the salt water flow channel can be sealed after water replenishing is completed, and salt water is prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of water softeners, in particular to a salt valve and a water softener. Background Art

[0002] A water softener is a device used to soften water by removing hardness ions, such as calcium and magnesium, from water to reduce scale formation. A salt valve is a valve used in a water softener to control the flow of salt water or salt solution into the softener for regeneration or return.

[0003] In the prior art, the salt valve has a single function and is unable to seal the flow channel when water replenishment is completed. Utility Model Content

[0004] The utility model provides a salt valve, which is used to solve the defect that the salt valve in the prior art cannot seal the salt water flow channel when water replenishment is completed, and can seal the salt water flow channel when water replenishment is completed to prevent salt water from overflowing.

[0005] The utility model provides a salt valve on one hand, comprising:

[0006] A base, wherein a first channel is provided in the base;

[0007] A floating assembly, the floating assembly comprising a float and a sealing member, one end of the float being connected to the sealing member, the float and the sealing member being vertically movable relative to the base, a first cavity being provided in the float, the float being provided with a connecting structure for connecting with the salt box, the first cavity forming a floating cavity corresponding to the upper portion of the connecting structure, a second channel being provided in the sealing member, the first cavity being connected to the second channel, and the second channel being connected to the first channel;

[0008] In the first sealing state, the floating assembly is located at a first position, and the sealing member is in sealing cooperation with the first channel.

[0009] According to the salt valve provided by the utility model, the communication structure includes at least one communication seam, and the communication seam is arranged on the float.

[0010] According to the salt valve provided by the utility model, the communication structure comprises a plurality of communication slits arranged vertically, and the plurality of communication slits are evenly distributed on the float along the circumferential direction.

[0011] The salt valve provided by the utility model further comprises a protective shell, and the protective shell is covered on the float.

[0012] According to the salt valve provided by the utility model, the communicating slit is arranged vertically, and the inner wall of the protective shell is provided with a guide block, and the guide block is slidably matched with the communicating slit.

[0013] According to the salt valve provided by the utility model, a clamping portion is provided at one end of the sealing member, and the clamping portion is clamped and matched with the connecting seam.

[0014] The salt valve provided by the utility model further includes a float, which is arranged in the first cavity and can move vertically along the first cavity;

[0015] In the second sealing state, the floating assembly is located at a second position, and the floating ball is sealed and matched with the second channel.

[0016] According to the salt valve provided by the utility model, the inner wall of the float is provided with ribs, and the ribs are used to strengthen the structural strength of the float and to limit the vertical position of the float ball.

[0017] Another aspect of the utility model provides a water softener, comprising:

[0018] A salt box, comprising a box body and a salt valve as described in any one of the above embodiments;

[0019] A resin tank is communicated with the first passage.

[0020] According to the water softener provided by the utility model, the highest liquid level of the salt box is 0-3 cm higher than the upper limit position of the connecting structure.

[0021] The salt valve provided by the utility model is provided with a connecting structure on the float, and a floating cavity is formed above the connecting structure. When the liquid level in the salt box exceeds the upper limit position of the connecting structure, the air sealed inside the floating cavity can provide buoyancy to the floating component, so that the floating component reaches the first position, thereby switching the salt valve to the first sealing state to seal the first channel and prevent the salt water from overflowing.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 is a cross-sectional view of a salt valve provided by an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of a float in a salt valve provided by an embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the main body of the base in the salt valve provided by the embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the fixing part of the base in the salt valve provided by the embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of a float guardrail of a sealing member in a salt valve provided by an embodiment of the utility model;

[0029] Figure 6 It is a schematic diagram of a valve plug of a sealing member in a salt valve provided by an embodiment of the utility model;

[0030] Figure 7 It is a schematic diagram of a valve plug sealing ring in a salt valve provided in an embodiment of the utility model.

[0031] Reference numerals:

[0032] 100, base; 110, main body; 111, first mounting groove; 120, fixing portion; 121, sealing ring mounting portion; 130, first sealing ring; 140, second sealing ring; 150, first channel;

[0033] 200, floating assembly; 210, float; 211, first cavity; 2111, floating cavity; 212, connecting structure; 213, rib; 220, sealing member; 221, floating ball guardrail; 2211, clamping portion; 2212, connecting hole; 2213, second mounting groove; 2214, limiting flange; 222, valve plug; 2221, conical sealing surface; 223, third sealing ring; 224, second channel;

[0034] 300, protective shell; 310, guide block;

[0035] 400. Float. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

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

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Combine the following Figures 1 to 7 The utility model describes a salt valve and a water softener.

[0042] It should be noted that in a water softener, the main function of the salt valve is to control the flow of brine and the regeneration process. When the water softener needs to be regenerated, the salt valve will open, allowing brine to flow from the salt tank into the resin tank to exchange ions with the resin particles. This process is called backwashing or regeneration. In addition to controlling the flow of brine during the regeneration process, the salt valve also plays a role in replenishing water. During the use of the water softener, the brine in the salt tank may decrease due to water evaporation, discharge, etc. When the water level of the brine is too low, the salt valve will open to allow water to pass through the salt valve into the salt tank for replenishment to ensure the normal operation of the water softener.

[0043] In the prior art, the salt valve usually uses an air check structure to seal the flow channel after the salt absorption is completed to prevent air from entering the resin tank through the flow channel. Its function is single and it is unable to seal the flow channel when the water replenishment is completed. Therefore, the utility model provides a salt valve to solve the above problem.

[0044] See also Figure 1 As shown, the salt valve provided by the embodiment of the utility model includes a base 100 and a floating assembly 200. The base 100 is provided with a first channel 150. The floating assembly 200 includes a float 210 and a sealing member 220. One end of the float 210 is connected to the sealing member 220. The float 210 and the sealing member 220 can move vertically relative to the base 100. The float 210 is provided with a first cavity 211. The float 210 is provided with a connecting structure 212 for connecting with the salt box. The first cavity 211 corresponds to the upper part of the connecting structure 212 to form a floating cavity 2111 (i.e., see Figure 1 As shown, a floating cavity 2111 is formed between the upper limit point of the connecting structure 212 and the top of the first cavity 211, a second channel 224 is provided in the sealing member 220, the first cavity 211 is connected with the second channel 224, and the second channel 224 is connected with the first channel 150; in the first sealing state, the floating assembly 200 is located in the first position, and the sealing member 220 is sealed in cooperation with the first channel 150.

[0045] The salt valve provided by the utility model is provided with a connecting structure 212 on the float 210, and a float cavity 2111 is formed above the connecting structure 212. When the liquid level in the salt box exceeds the upper limit position of the connecting structure 212, the air sealed inside the float cavity 2111 can provide buoyancy to the floating assembly 200, so that the floating assembly 200 reaches the first position, so that the salt valve switches to the first sealing state to seal the first channel 150 to prevent the salt water from overflowing.

[0046] Specifically, see Figure 1 and Figure 2As shown, in this embodiment, the float 210 is a cylindrical structure with an opening at one end, a first cavity 211 is formed inside the float 210, and is connected to the salt box through a connecting structure 212 provided on the wall of the float 210. Liquid can enter the first cavity 211 from the salt box through the connecting structure 212 (regeneration salt absorption process), or enter the salt box from the first cavity 211 (water replenishment process). To facilitate demoulding of the float 210, the inner diameter of the first cavity 211 gradually decreases from bottom to top.

[0047] The float 210 is made of POM material (Polyoxymethylene). The POM material has good corrosion resistance and can avoid corrosion damage in long-term contact with salt water. The POM material is a non-toxic engineering plastic and will not cause harm to the human body during use.

[0048] See also Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the base 100 includes a main body 110 and a fixing part 120, one end of the fixing part 120 is sleeved on the main body 110, and the two can be fixed by interference fit. A first sealing ring 130 is provided between the fixing part 120 and the main body 110 to enhance the water tightness of the base 100. In specific implementation, a first installation groove 111 can be provided on the outer wall of the main body 110, and the first sealing ring 130 can be clamped in the first installation groove 111 during installation.

[0049] See also Figure 1 , Figure 4 and Figure 7 As shown, a first channel 140 is provided at the upper end of the fixing portion 120, wherein an annular sealing ring mounting portion 121 is provided at the upper end of the fixing portion 120, and the outer diameter of the second sealing ring 140 is slightly larger than the inner diameter of the mounting portion 121. During installation, the second sealing ring 140 can be interference fit on the sealing ring mounting portion 121.

[0050] According to some embodiments of the utility model, the main body 110 and the fixing part 120 can be integrated to facilitate processing and manufacturing, so that the base 100 can be suitable for mass production and reduce costs. At the same time, the connecting surface between the main body 110 and the fixing part 120 can be eliminated, the sealing performance of the base 100 is improved, and there is no need to set a sealing ring between the main body 110 and the fixing part 120.

[0051] See also Figure 1 , Figure 4 and Figure 7As shown, the sealing member 220 includes a float guardrail 221 and a valve plug 222. One end of the float guardrail 221 is interference fit with one end of the valve plug 222. The float guardrail 221 is provided with a connecting hole 2212 for connecting the first channel 150 and the second channel 224. The second sealing ring 140 is sleeved on the valve plug 222, and the valve plug 222 can move vertically relative to the second sealing ring 140 sleeve. When the valve plug 222 moves upward to a set position (i.e., when the floating assembly 200 is in the first position), the lower end of the valve plug 222 contacts and seals with the lower end of the second sealing ring 140. After the valve plug 222 moves downward, the lower end of the valve plug 222 is out of contact with the lower end of the second sealing ring 140, and the sealing is released.

[0052] Specifically, see Figure 1 , Figure 6 and Figure 7 As shown, in this embodiment, the lower end of the valve plug 222 is provided with a conical sealing surface 2221, and the lower end of the second sealing ring 140 is provided with a lip 141 matched with the conical sealing surface 2221. When the valve plug 222 moves upward to the set position, the conical sealing surface 2221 of the valve plug 222 contacts and cooperates with the lip 141 of the second sealing ring 140, thereby achieving a better sealing effect.

[0053] According to some embodiments of the present invention, similarly, the float guardrail 221 and the valve plug 222 can be integrated to facilitate processing and manufacturing, so that the sealing member 220 can be suitable for mass production and reduce costs.

[0054] See also Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the communication structure 212 includes at least one communication slit, and the communication slit is provided on the float 210. By setting the communication structure 212 as a communication slit structure, it is convenient to control the position of the upper limit point thereof, thereby facilitating the control of the volume of the float chamber 2111, and the structure is convenient for processing and manufacturing. In addition, when the liquid flows through the communication slit, the pressure of the liquid flow can be dispersed, thereby reducing the resistance and pressure loss of the liquid when passing through the float 210.

[0055] See also Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the communication structure 212 includes two communication slits arranged vertically, and the two communication slits are evenly distributed on the float 210 along the circumferential direction (that is, they are relatively arranged on both sides of the float 210). By arranging multiple communication slits on the float 210, the water flow rate of the float 210 can be increased, and the multiple communication slits are evenly distributed on the float 210 along the circumferential direction, and the water pressure of various parts of the periphery of the float 210 can be balanced, so that the float 210 is not easy to tilt during the up and down movement, and the accuracy of the valve plug 222 contacting the second sealing ring 140 can also be indirectly improved.

[0056] According to some embodiments of the present invention, the communication structure 212 may also include three or more communication slits. In specific implementation, the number of the communication slits may be controlled by referring to factors such as the specification of the float 210, the length of the communication slit, and the width of the communication slit.

[0057] See also Figure 1 As shown, according to some embodiments of the present invention, the salt valve further includes a protective shell 300, and the protective shell 300 is disposed on the float 210. By arranging the protective shell 300 outside the float 210, the float 210 can be protected. To a certain extent, the float 210 can be guided during its up and down movement to prevent the float 210 from tilting or tilting at an excessive angle.

[0058] Specifically, in this embodiment, the lower end of the protective shell 300 is sleeved on the fixing portion 120 of the base 100, and the two are connected and fixed by interference fit. In order to allow salt water to enter the first cavity 211 in the float 210, or to allow water to enter the salt box through the first cavity 211 in the float 210 during the water replenishment process, the protective shell 300 is provided with a water passing structure, such as a hole structure, a groove structure or a hollow structure.

[0059] See also Figure 1 As shown, according to some embodiments of the utility model, the connecting seam is arranged vertically, and the inner wall of the protective shell 300 is provided with a guide block 310, and the guide block 310 is slidably matched with the connecting seam. When the float 210 moves up and down, it can move in a straight line under the cooperation of the guide block 310 and the connecting seam, which can effectively prevent the float 210 from tilting or rotating. The structure is simple and the manufacturing difficulty is low. Moreover, the structure can use the connecting seam and the guide block 310 to configure the float 210 and the protective shell 300 into an up and down sliding matching relationship, without setting other structures on the float 210, thereby simplifying the structure of the float 210.

[0060] See also Figure 1 , Figure 2 as well as Figure 7 As shown, according to some embodiments of the present invention, a snap-fit ​​portion 2211 is provided at one end of the seal 220, and the snap-fit ​​portion 2211 is snap-fitted with the connecting seam. The float 210 and the seal 220 can be configured to be snap-fitted through the connecting seam, which can prevent the float 210 and the seal 220 from rotating relative to each other, and there is no need to provide other structures on the float 210 to cooperate with the snap-fit ​​portion 2211, which further simplifies the structure of the float 210.

[0061] Specifically, in this embodiment, the clamping portion 2211 is disposed on the float guardrail 221 of the sealing member 220 .

[0062] See also Figure 1As shown, according to some embodiments of the utility model, the salt valve further includes a float 400, which is disposed in the first cavity 211 and can move vertically along the first cavity 211; in the second sealing state, the floating assembly 200 is located in the second position, and the float 400 is sealed and matched with the second channel 224. By arranging the float 400 in the first cavity 211, the connection between the first cavity 211 and the second channel 224 can be sealed when the salt absorption is completed to prevent air from entering the resin tank, so that the salt valve provided by the utility model can not only seal the salt water flow channel when the water replenishment is completed to prevent the salt water from overflowing, but also seal the flow channel after the salt absorption is completed to prevent air from entering the resin tank, thereby achieving two-way sealing.

[0063] Specifically, in this embodiment, a second installation groove 2213 is provided in the float guardrail 221, and a third sealing ring 223 is provided in the second installation groove 2213. When the float 400 falls into the float guardrail 221, the outer surface of the float 400 contacts the third sealing ring 223, thereby sealing the second channel 224. A limiting flange 2214 is also provided on the outer side of the second installation groove 2213. When the float 400 moves down to a set position, the limiting flange 2214 can limit the float 400 to prevent the float 400 from moving further down.

[0064] See also Figure 1 As shown, according to some embodiments of the present invention, the inner wall of the float 210 is provided with ribs 213, and the ribs 213 are used to strengthen the structural strength of the float 210 and to vertically limit the float 400. Specifically, in this embodiment, a plurality of ribs 213 are vertically provided on the top of the first cavity 211, and the spacing between the plurality of ribs 213 is relatively close. When the float 400 floats to a certain position, the plurality of ribs 213 can prevent the float 400 from continuing to float.

[0065] According to some embodiments of the present invention, the ribs 213 may also be staggeredly disposed on the top of the first cavity 211 or spaced apart on the top of the first cavity 211 .

[0066] Refer to the following Figures 1 to 7 , a salt valve according to an embodiment of the utility model is described in detail.

[0067] The salt valve provided by the embodiment of the utility model comprises a base 100, a floating assembly 200, a protective shell 300 and a floating ball 400. The floating assembly 200 comprises a float 210 and a sealing member 220. One end of the float 210 is connected to the sealing member 220. The float 210 and the sealing member 220 can move vertically relative to the base 100. A first channel 150 is provided in the base 100, a first cavity 211 is provided in the float 210, a second channel 224 is provided in the sealing member 220, the first cavity 211 is communicated with the second channel 224, and the second channel 224 is communicated with the first channel 150. The floating ball 400 is arranged in the first cavity 211 and can move vertically along the first cavity 211. Two connecting slits are provided on the float 210. The two connecting slits are arranged on both sides of the float 210 opposite to each other. A floating cavity 2111 for providing buoyancy to the floating assembly 200 is formed above the two connecting slits of the first cavity 211.

[0068] Among them, the base 100 includes a main body 110 and a fixed part 120, one end of the fixed part 120 is sleeved on the main body 110, and the two can be fixed by interference fit, the lower end of the protective shell 300 is sleeved on the fixed part 120 and is connected and fixed to the fixed part 120 by interference fit, and the inner wall of the protective shell 300 is provided with a guide block 310, and the guide block 310 is slidably matched with the connecting seam to guide the float 210 to prevent it from tilting during vertical movement.

[0069] The sealing member 220 comprises a float guardrail 221 and a valve plug 222. One end of the float guardrail 221 is interference fit with one end of the valve plug 222. The float guardrail 221 is provided with a connecting hole 2212 for connecting the first channel 150 and the second channel 224. A sealing ring is provided inside the float guardrail 221. The sealing ring is used to seal with the float 400 to seal the second channel 224. A second sealing ring 140 is provided on the fixing portion 120. The second sealing ring 140 is used to seal with the valve plug 222 to seal the first channel 150. A conical sealing surface 2221 is provided at the lower end of the valve plug 222. A lip 141 matched with the conical sealing surface 2221 is provided at the lower end of the second sealing ring 140. When the valve plug 222 moves upward to a set position, the conical sealing surface 2221 of the valve plug 222 contacts and cooperates with the lip 141 of the second sealing ring 140 to squeeze and deform the lip 141, thereby achieving a better sealing effect.

[0070] A plurality of ribs 213 are vertically disposed on the top of the first cavity 211 . When the float 400 floats up to a certain position, the plurality of ribs 213 can prevent the float 400 from continuing to float up.

[0071] When in use, the salt valve is placed in the salt box. During the water replenishment process, water passes through the first channel 150, the second channel 224 and the first cavity 211 in sequence, and finally enters the salt box through the connecting seam. When the liquid level in the salt box exceeds the upper limit position of the connecting seam, the air sealed inside the float cavity 2111 can provide buoyancy to the floating assembly 200, so that it reaches the first position, so that the floating assembly 200 switches to the first sealing state to seal the first channel 150 to prevent salt water from overflowing. During the salt absorption process, the salt solution enters the first cavity 211 through the connecting seam, and then enters the resin tank through the second channel 224 and the first channel 150 in sequence to exchange ions with the resin particles, so that the resin particles are regenerated. When the liquid level in the salt box drops to the set position, the floating assembly 200 moves down to the second position, the float 400 moves down, the salt valve switches to the second sealing state, and the float 400 cooperates with the sealing ring to seal the second channel 224 to prevent air from entering the resin tank.

[0072] The water softener of the utility model comprises a salt box and a resin tank, wherein the salt box comprises a box body and a salt valve as in any of the above embodiments, and the resin tank is communicated with the first channel 150 .

[0073] The water softener provided by the utility model adopts the salt valve of the above embodiment, so when in use, the water softener can prevent salt water from overflowing and prevent air from entering the resin tank.

[0074] According to some embodiments of the present invention, the highest liquid level of the salt box is higher than the upper limit position of the communication structure 212 .

[0075] Specifically, in this embodiment, the highest liquid level of the salt box is 0-3 cm higher than the upper limit position of the connecting seam, so as to ensure that air is sealed in the floating chamber 2111 during water replenishment, thereby providing buoyancy to the floating assembly 200 .

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A salt valve, characterized in that: include: A base, wherein a first channel is provided in the base; A floating assembly, the floating assembly comprising a float and a sealing member, one end of the float being connected to the sealing member, the float and the sealing member being vertically movable relative to the base, a first cavity being provided in the float, the float being provided with a connecting structure for connecting with the salt box, the first cavity forming a floating cavity corresponding to the upper portion of the connecting structure, a second channel being provided in the sealing member, the first cavity being connected to the second channel, and the second channel being connected to the first channel; In the first sealing state, the floating assembly is located at a first position, and the sealing member is in sealing cooperation with the first channel.

2. The salt valve according to claim 1, characterized in that The communication structure includes at least one communication slit, and the communication slit is arranged on the float.

3. The salt valve according to claim 2, characterized in that: The communication structure includes a plurality of communication slits arranged vertically, and the plurality of communication slits are evenly distributed on the float along the circumferential direction.

4. The salt valve according to claim 2, characterized in that: It also includes a protective shell, which is covered on the float.

5. The salt valve according to claim 4, characterized in that The connecting slit is arranged vertically, and a guide block is arranged on the inner wall of the protective shell, and the guide block is slidably matched with the connecting slit.

6. The salt valve according to claim 2, characterized in that: A clamping portion is provided at one end of the sealing member, and the clamping portion is clamped and matched with the connecting seam.

7. The salt valve according to any one of claims 1 to 6, characterized in that: Also includes a float ball, the float ball is disposed in the first cavity and can move vertically along the first cavity; In the second sealing state, the floating assembly is located at a second position, and the floating ball is sealed and matched with the second channel.

8. The salt valve according to claim 7, characterized in that The inner wall of the float is provided with ribs, and the ribs are used to strengthen the structural strength of the float and to limit the vertical position of the float ball.

9. A water softener, characterized in that: include: A salt box, comprising a box body and a salt valve according to any one of claims 1 to 8; A resin tank is communicated with the first passage.

10. The water softener according to claim 9, characterized in that: The highest liquid level of the salt box is 0-3 cm higher than the upper limit position of the connecting structure.

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