Slow-release structure, slow-release valve and water-using equipment

Abstract

The present invention relates to the field of sanitary equipment, and discloses a slow-release structure, a slow-release valve, and a water-using device. The slow-release structure includes a shell and a first seal, the shell defines a water passage, a first slow-release chamber, a connecting passage, and a second slow-release chamber that are connected in sequence, the first slow-release chamber and the second slow-release chamber are used to place water treatment agents respectively, and the first slow-release chamber is connected to the water passage; the first seal is slidably connected to the connecting passage, one end of the connecting passage is connected to the first slow-release chamber, and the other end is connected to the second slow-release chamber; the first seal abuts against the inner wall of the connecting passage to separate the second slow-release chamber from the first slow-release chamber, the end face of the first seal close to the first slow-release chamber can abut against the first-level water treatment agent, and move toward the first slow-release chamber as the first-level water treatment agent decreases, and the first seal can move to the first position where the first slow-release chamber is connected to the second slow-release chamber through the connecting passage. By storing the water treatment agent in partitions and grades, the water treatment agent is slow-released in batches.

Description

Technical Field

[0001] The invention relates to the field of sanitary equipment, and in particular to a slow-release structure, a slow-release valve and water-using equipment. Background Art

[0002] As the use time of water-using equipment increases, scale often forms in the pipes or water storage chambers of the water-using equipment. A large amount of scale can easily cause blockage of water pipes, affecting the use of water-using equipment. In recent years, the method of using scale inhibitors to prevent scale generation has been applied to more and more water-using equipment. In the prior art, the scale inhibitor is set in the water passage. When the terminal water-using device is turned on, the scale inhibitor is lost with the movement of the water flow, and cannot play a long-term anti-scaling role. In addition, the consumption of the scale inhibitor is relatively large.

[0003] In the related art, the chamber containing the scale inhibitor is separated from the water passage, so as to reduce the loss of the scale inhibitor with the movement of the water flow. However, the scale inhibitor is loosely filled in the chamber containing the scale inhibitor, and the scale inhibitor is easy to flow into the water passage with the water flow, causing the escape of granular water treatment agent, which can easily cause water safety problems. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a slow-release structure that can store water treatment agents in partitions and grades to achieve batch slow-release of water treatment agents, and achieve centralized placement of first-level water treatment agents through the first container.

[0005] The present invention also provides a slow-release valve having the slow-release structure.

[0006] The present invention also provides a water-using device having the above-mentioned slow-release structure.

[0007] The sustained-release structure according to the first embodiment of the present invention comprises:

[0008] A shell, wherein the shell defines a water passage, a first slow-release chamber, a connecting passage, and a second slow-release chamber which are connected in sequence, wherein the first slow-release chamber is used to place a first-level water treatment agent, and the second slow-release chamber is used to place a second-level water treatment agent, and the first slow-release chamber is connected to the water passage;

[0009] A first sealing member, wherein the first sealing member is slidably connected to the connecting channel, one end of the connecting channel is connected to the first slow-release chamber, and the other end of the connecting channel is connected to the second slow-release chamber;

[0010] A first accommodating member, the first accommodating member is disposed in the first slow-release chamber, the first accommodating member divides the first slow-release chamber into: a first accommodating chamber located inside the first accommodating member and a first water-passing gap located outside the first accommodating member, the first accommodating chamber is used to accommodate the first-level water treatment agent, the top of the first accommodating member has an open opening, the first accommodating chamber is communicated with the connecting channel through the open opening, and a first connecting portion connecting the first water-passing gap and the first accommodating chamber is provided on the outer circumferential surface of the first accommodating member;

[0011] Among them, the outer peripheral surface of the first seal abuts against the inner wall of the connecting channel to separate the second slow release chamber from the first slow release chamber, and the end surface of the first seal close to the first slow release chamber can abut against the first-level water treatment agent and move toward the first slow release chamber as the first-level water treatment agent decreases. The first seal can move to a first position where the first water gap and the second slow release chamber are connected.

[0012] The sustained-release structure according to the embodiment of the present invention has at least the following beneficial effects: the sustained-release structure of the present application triggers the movement of the first seal through the consumption of the previous water treatment agent. When the previous water treatment agent is consumed to a certain extent, the first seal moves to the position where two adjacent sustained-release chambers are connected, and then the water flow can enter the subsequent sustained-release chamber through the connecting channel to dissolve and slowly release the subsequent water treatment agent. By storing the water treatment agent in partitions and grades, the water treatment agent is slowly released in batches, and the water treatment agent in the sustained-release structure will not be dissolved in the water at the same time, causing a large amount of rapid loss of the water treatment agent. In addition, by setting the first container, the granular water treatment agent is gathered together to avoid the escape of the water treatment agent. On the other hand, the setting of the first container can further slow down the dissolution rate of the first-level water treatment agent, so that the first-level water treatment agent is fully dissolved from the outer layer to the inner layer.

[0013] According to some embodiments of the present invention, the first accommodating member includes a bottom cover and a first protrusion connected to the bottom cover, the first protrusion abuts against the bottom wall of the first slow-release chamber to form a second water flow gap between the bottom cover of the first accommodating member and the bottom wall of the first slow-release chamber, the second water flow gap is connected to the water flow channel, and the first water flow gap extends axially to be connected to the second water flow gap.

[0014] According to some embodiments of the present invention, the first accommodating member further includes a plurality of second protrusions, each of which is connected to the outer peripheral surface of the first accommodating member and extends radially to abut against the inner wall of the first sustained-release cavity, and adjacent second protrusions are circumferentially spaced apart to define the first water-passing gap between the second protrusions.

[0015] According to some embodiments of the present invention, the shell includes a first main body and a second main body, the first main body is detachably connected to the second main body, the first main body defines the water passage, the first main body and the second main body jointly define the first slow-release chamber, and the second main body defines the connecting channel and the second slow-release chamber.

[0016] According to some embodiments of the present invention, the connecting channel extends into the second slow-release chamber, and the side wall of the connecting channel is provided with a second connecting portion for communicating with the second slow-release chamber. The shell includes a cover plate, and the cover plate closes the opening of the connecting channel at one end of the second slow-release chamber. The slow-release structure also includes a first elastic member, one end of the first elastic member abuts against the cover plate, and the other end abuts against the first sealing member to drive the first sealing member to move toward the first slow-release chamber.

[0017] According to some embodiments of the present invention, the slow-release structure also includes a top cover, which is detachably connected to the shell, and one end of the connecting channel away from the first slow-release chamber is connected to the second slow-release chamber. The slow-release structure also includes a first elastic member, one end of the first elastic member abuts against the top cover, and the other end abuts against the first sealing member to drive the first sealing member to move toward the first slow-release chamber.

[0018] According to some embodiments of the present invention, the first accommodating member includes a bottom cover, either the bottom cover or the first sealing member is made of a magnetic material, and the other includes a magnet, and the first sealing member is attracted by the bottom cover to drive the first sealing member to move toward the bottom cover.

[0019] According to some embodiments of the present invention, the water passage includes a first pipe segment and a second pipe segment sequentially arranged along the moving direction of the water flow, the shell defines a first through hole and a second through hole, the first through hole connects the first pipe segment and the first slow-release cavity, the second through hole connects the second pipe segment and the first slow-release cavity, the diameter of the first pipe segment is smaller than the diameter of the second pipe segment, and the slow-release structure further includes a second sealing member, which is at least partially located in the second through hole;

[0020] Wherein, when the water flows along the direction from the first pipe section to the second pipe section, the water pressure in the first pipe section is greater than the water pressure in the second pipe section, and a pressure difference is formed at both ends of the second seal to drive the second seal to move downward, and the second seal closes the second through hole; and, when the water stops flowing, the second seal opens the second through hole.

[0021] According to some embodiments of the present invention, the slow-release structure further includes a first check valve, which is disposed in the first through hole to allow water to flow unidirectionally along the water passage to the first slow-release chamber.

[0022] According to some embodiments of the present invention, the shell further defines a second accommodating chamber and a third through hole, the second accommodating chamber is connected with the second tube segment through the second through hole, and is connected with the first slow-release chamber through the third through hole, the slow-release structure also includes a third seal and a second elastic member sequentially arranged in the second accommodating chamber, one end of the third seal abuts against the second elastic member, and the other end abuts against the bottom surface of the first accommodating member, and the second elastic member is configured to drive the third seal to move to close the third through hole when the first accommodating member is taken out.

[0023] The slow-release valve according to the second aspect of the present invention comprises:

[0024] A valve body, defining a third pipe section, the valve body including a valve core;

[0025] The sustained-release structure as mentioned in any of the above embodiments;

[0026] Among them, the valve body is connected to the slow-release structure, and along the flow direction of the water flow, the third pipe section and the water passage are connected in sequence, and the valve core is arranged in the third pipe section to control the third pipe section to be connected or closed.

[0027] The slow-release valve according to the embodiment of the present invention has at least the following beneficial effects: the slow-release structure is set on the angle valve, and when the terminal water-using equipment is closed, a closed water body is formed in the pipe between the slow-release valve and the terminal water-using equipment, which can cover all the pipes from the water flowing out of the main pipe to the water flowing out of the terminal water-using equipment, so as to prevent scale, inhibit bacteria, deodorize or perform other treatments on the water body in the area.

[0028] The water-using equipment according to the third aspect of the present invention comprises:

[0029] Equipment body;

[0030] The sustained-release structure as mentioned in any of the above embodiments;

[0031] A water pipe has one end connected to the water outlet of the water passage and the other end connected to the water inlet of the device body, so that water flows through the slow-release structure and then flows into the device body.

[0032] The water-using equipment according to the embodiment of the present invention has at least the following beneficial effects: by storing the water treatment agent in partitions and grades, the water treatment agent is slowly released in batches, and the water treatment agent in the slow-release structure will not be dissolved in water at the same time, causing a large amount of rapid loss of the water treatment agent, which greatly extends the use time after a single filling of the water treatment agent and reduces the use cost of the water-using equipment.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0035] Figure 1 is a cross-sectional schematic diagram of a sustained-release structure according to an embodiment of the present invention;

[0036] Figure 2 An exploded schematic diagram of a sustained-release structure according to an embodiment of the present invention;

[0037] Figure 3 for Figure 1 A partially enlarged schematic diagram of the sustained-release structure in FIG. 1 (a state where the first sustained-release cavity and the second sustained-release cavity are not connected);

[0038] Figure 4 for Figure 1 A partially enlarged schematic diagram of the sustained-release structure in FIG. 1 (a state in which the first sustained-release cavity and the second sustained-release cavity are connected);

[0039] Figure 5 A schematic structural diagram of another implementation of the first elastic member of an embodiment of the present invention;

[0040] Figure 6 is a schematic structural diagram of a first accommodating member according to an embodiment of the present invention;

[0041] Figure 7 is a partial cross-sectional schematic diagram of a second main body member according to an embodiment of the present invention;

[0042] Figure 8 for Figure 1 A magnified schematic diagram of the middle A area;

[0043] Fig. 9 Schematic diagram of the structure of a slow-release valve according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] Shell 100, first main body 101, second main body 102, water passage 110, first pipe section 111, second pipe section 112, first slow-release chamber 120, first-level water treatment agent 121, connecting channel 130, cover plate 131, second connecting part 132, second slow-release chamber 140, second-level water treatment agent 141, first through hole 150, first check valve 151, second through hole 160, second sealing member 161, second accommodating chamber 170, third through hole 180, first sealing member 200, first elastic member 210, first accommodating member 300, first water gap 310, first connecting part 320, bottom cover 330, first protrusion 340, second water gap 350, second protrusion 360, top cover 400, third sealing member 500, second elastic member 510, valve body 600. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0050] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 present invention. In this specification, the schematic representation of the above terms does 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.

[0051] In the prior art, the chamber containing the water treatment agent is separated from the water passage, so as to reduce the loss of the water treatment agent with the water flow. However, after the water flow enters the chamber containing the water treatment agent, it will soak all the water treatment agents in the chamber. The soaked water treatment agent is always in a slow-release state. Compared with the dry water treatment agent, the wet water treatment agent is consumed faster. Therefore, the present application proposes a slow-release structure that can achieve batch slow-release of the water treatment agent.

[0052] Specifically, Figures 1 to 4 As shown, the slow-release structure includes a shell 100 and a first sealing member 200. The shell 100 defines a water passage 110, a first slow-release chamber 120, a connecting channel 130 and a second slow-release chamber 140 which are connected in sequence. The first slow-release chamber 120 and the second slow-release chamber 140 are both used to place water treatment agents, and the water treatment agents include but are not limited to: scale inhibitors for inhibiting scale condensation, antibacterial agents for inhibiting bacterial growth, deodorants for refreshing and deodorizing, etc. Among them, the water treatment agents in the first slow-release chamber 120 and the second slow-release chamber 140 can be the same or different, for example: the scale inhibitor is filled in the first slow-release chamber 120, and the antibacterial agent is filled in the second slow-release chamber 140, and the water treatment agents are filled according to the needs of the user. It should be noted that the water treatment agent is a solid particle that can be slowly dissolved in water. For the convenience of description, the water treatment agent in the first slow-release chamber 120 is named as the first-level water treatment agent 121, and the water treatment agent in the second slow-release chamber 140 is named as the second-level water treatment agent 141.

[0053] The first sealing member 200 is slidably connected to the connecting channel 130, one end of the connecting channel 130 is connected to the first slow-release chamber 120, and the other end is connected to the second slow-release chamber 140. The outer peripheral surface of the first sealing member 200 abuts against the inner wall of the connecting channel 130 to separate the first slow-release chamber 120 from the second slow-release chamber 140. The first slow-release chamber 120 is filled with the first-level water treatment agent 121, and the end surface of the first sealing member 200 close to the first slow-release chamber 120 abuts against the first-level water treatment agent 121. When the water flows from the water passage 110 to the first slow-release chamber 120, the first-level water treatment agent 121 in the first slow-release chamber 120 is dissolved, so that the amount of the first-level water treatment agent 121 is gradually reduced. Since the first sealing member 200 is sealed and connected to the connecting channel 130, in the initial stage, the water flow cannot enter the second slow-release chamber 140, and the first-level water treatment agent 121 can only be dissolved in the first slow-release chamber 120. As the first-stage water treatment agent 121 dissolves, the first sealing member 200 moves toward the first slow-release chamber 120 under the action of gravity or other driving force, and the first sealing member 200 can move to the first slow-release chamber 120 to communicate with the second slow-release chamber 140 through the connecting channel 130. Then, water can flow into the second slow-release chamber 140 to dissolve the second-stage water treatment agent 141.

[0054] If the scale inhibitor is loosely filled in the chamber containing the scale inhibitor, the scale inhibitor is easy to flow into the water pipe with the water flow, causing the escape of granular water treatment agent, which is easy to cause water safety problems or cause blockage. Therefore, the slow-release structure of the present application also includes a first container 300, and the first container 300 is arranged in the first slow-release chamber 120. The first container 300 is provided with a first accommodating chamber for accommodating the first-level water treatment agent 121. The first container 300 can gather the granular water treatment agent together to avoid the escape of the water treatment agent. On the other hand, the setting of the first container 300 can also slow down the dissolution rate of the first-level water treatment agent 121, so that the first-level water treatment agent 121 is fully dissolved from the outer layer to the inner layer.

[0055] The top of the first accommodating chamber has an open opening, and the first accommodating chamber is connected to the connecting channel 130 through the open opening. The outer diameter of the first sealing member 200 is not greater than the inner diameter of the first accommodating chamber, so that the first sealing member 200 can move into the first accommodating chamber through the open opening. The outer peripheral surface of the first accommodating member 300 and the inner wall of the first slow-release chamber 120 define a first water-passing gap 310. Water can flow from the water-passing channel 110 to the first water-passing gap 310, and enter the first accommodating chamber through the first connecting portion 320 on the first accommodating member 300 to dissolve the first-level water treatment agent 121. The first connecting portion 320 can be a through hole or a through groove, such as Figure 6In the illustrated embodiment, the first connecting portion 320 includes a plurality of through grooves and a plurality of through holes extending in the circumferential direction, the through grooves are arranged at the upper end of the first accommodating member 300, and the through holes are arranged at the lower end of the first accommodating member 300, and the water flow can enter the first accommodating chamber through the through grooves and the through holes. When the first sealing member 200 is located on the upper side of the through grooves, the through grooves play a role in connecting the first water gap 310 and the first accommodating chamber. With the consumption of the first-level water treatment agent 121, the first sealing member 200 gradually moves down to block the through grooves, and then continues to move down until part of the through grooves are opened. At this time, the first water gap 310, the through grooves on the upper side of the first sealing member 200, the first accommodating chamber on the upper side of the first sealing member 200, and the connecting channel 130 are connected in sequence, so that the water flow can enter the second slow-release chamber 140.

[0056] Based on the above, the slow-release structure of the present application triggers the movement of the first seal 200 through the consumption of the previous water treatment agent. When the water treatment agent of the previous level is consumed to a certain extent, the first seal 200 moves to the position where the two adjacent slow-release chambers are connected, and then the water flow can enter the slow-release chamber of the next level through the connecting channel 130 to dissolve and release the water treatment agent of the next level. By storing the water treatment agent in a partitioned and graded manner, the water treatment agent is slow-released in batches, and the water treatment agent in the slow-release structure will not be dissolved in water at the same time, causing a large amount of rapid loss of the water treatment agent. When the first-level water treatment agent 121 is dissolved, the second-level water treatment agent 141 remains in a dry state. Compared with the water treatment agent in a wet state, the dry water treatment agent has a longer shelf life, and then the second-level water treatment agent 141 is released after the first-level water treatment agent 121 is consumed, which can extend the use time after a single filling of the water treatment agent. In addition, by setting the first container 300, the granular water treatment agent is gathered together to avoid the escape of the water treatment agent. On the other hand, the provision of the first accommodating member 300 can further slow down the dissolution rate of the first-stage water treatment agent 121, so that the first-stage water treatment agent 121 is fully dissolved from the outer layer to the inner layer.

[0057] In some embodiments, the first accommodating member 300 includes a bottom cover 330 and a first protrusion 340, one side of the first protrusion 340 is connected to the bottom cover 330, and the other side abuts against the bottom wall of the first slow-release cavity 120, thereby separating the bottom surface of the first accommodating member 300 from the cavity wall of the first slow-release cavity 120, and forming a second water gap 350 between the bottom surface of the first accommodating member 300 and the bottom wall of the first slow-release cavity 120, and the second water gap 350 is connected to the water channel 110. Specifically, as Figure 1 , Figure 3 and Figure 4As shown, the first slow-release chamber 120 and the water passage 110 are connected through the first through hole 150 and the second through hole 160. If the first protrusion 340 is not provided, the bottom cover 330 of the first accommodating member 300 will cover the first through hole 150 and the second through hole 160, resulting in the first slow-release chamber 120 and the water passage 110 being unable to communicate. The first protrusion 340 abuts against the housing 100 between the first through hole 150 and the second through hole 160, so that the first through hole 150 and the second through hole 160 can communicate with the second water passage gap 350. In addition, the first water passage gap 310 extends along the axial direction of the first accommodating member 300 to communicate with the second water passage gap 350, and then, the water flow can enter the first accommodating chamber through the water passage 110, the first through hole 150, the second water passage gap 350 and the first water passage gap 310 in sequence.

[0058] In some embodiments, the outer circumference of the first accommodating member 300 is spaced from the inner circumference of the first slow-release cavity 120, and the first accommodating member 300 is fixed in the first slow-release cavity 120 by fixing the bottom of the first accommodating member 300 or other methods. Figure 6 In the illustrated embodiment, the first accommodating member 300 further includes a plurality of second protrusions 360, one side of the second protrusions 360 is connected to the outer peripheral surface of the first accommodating member 300, and the other side extends radially to abut against the inner wall of the first slow-release cavity 120. The second protrusions 360 enable the first accommodating member 300 to abut against the cavity wall of the first slow-release cavity 120, thereby fixing the first accommodating member 300 in the first slow-release cavity 120, thereby preventing the first sealing member 200 from being unable to enter the first accommodating cavity due to the position deviation of the first accommodating member 300. In addition, the provision of the second protrusions 360 is also conducive to the assembly of the first accommodating member 300. During assembly, the first accommodating member 300 is inserted into the first slow-release cavity 120, and the second protrusions 360 abut against the inner wall of the first slow-release cavity 120, thereby achieving the centering of the first accommodating cavity and ensuring the coaxiality of the first accommodating cavity and the connecting channel 130. Adjacent second protrusions 360 are arranged at intervals along the circumference of the first accommodating member 300, and the side walls of the adjacent second protrusions 360, the outer peripheral surface of the first accommodating member 300 and the inner wall of the first slow-release chamber 120 define a first water-passing gap 310, and the first water-passing gap 310 is connected with the second water-passing gap 350. In addition, due to the arrangement of the second protrusions 360, the contact area between the outer peripheral surface of the first accommodating member 300 and the inner wall of the first slow-release chamber 120 is reduced, thereby reducing the friction force when the first accommodating member 300 is disassembled, which is conducive to the first accommodating member 300 being installed in the first slow-release chamber 120 and being taken out of the first slow-release chamber 120.

[0059] In some embodiments, in order to reduce the difficulty of manufacturing process, the housing 100 is configured as a segmented structure. Specifically, Figure 2As shown, the housing 100 includes a first main body 101 and a second main body 102, which are detachably connected, the first main body 101 defines a water passage 110, the second main body 102 defines a connecting passage 130 and a second slow-release chamber 140, and the first main body 101 and the second main body 102 jointly define a first slow-release chamber 120 for placing the first container 300. When it is necessary to replenish the first-level water treatment agent 121 in the first container 300, the first main body 101 and the second main body 102 are disassembled to remove the first container 300. The housing 100 is formed by a segmented structure, which reduces the processing depth of each main body, reduces the processing difficulty of the complex structure on the housing 100, and is conducive to the assembly of the first container 300.

[0060] In some embodiments, the connecting channel 130 extends in a direction away from the first slow-release chamber 120, and a second connecting portion 132 for connecting with the second slow-release chamber 140 is provided on the side wall of the connecting channel 130. The second connecting portion 132 may be a through hole or a through groove. Figure 7 As shown, the second slow-release chamber 140 is arranged around the connecting channel 130, that is, the second-level water treatment agent 141 filled in the second slow-release chamber 140 is arranged around the connecting channel 130, and the second connecting part 132 connected to the second slow-release chamber 140 is arranged on the side wall of the connecting channel 130, so that the water flow can be evenly introduced into the second slow-release chamber 140 to dissolve the slow-release agent of each layer in the second slow-release chamber 140.

[0061] In some embodiments, the first slow-release chamber 120 and the second slow-release chamber 140 are sequentially arranged from bottom to top, and then the connecting channel 130 is arranged in the vertical direction. The lower end of the first sealing member 200 abuts against the first-level water treatment agent 121. The first sealing member 200 has a certain weight. When the first-level water treatment agent 121 gradually melts, the first sealing member 200 gradually moves downward under the action of gravity to connect the first slow-release chamber 120 with the second slow-release chamber 140. In other embodiments, in order to prevent the first sealing member 200 from being stuck in the connecting channel 130 and unable to move, an elastic member is used for driving. Specifically, as Figure 3 and Figure 4 As shown, the housing 100 further includes a cover plate 131. One end of the connecting channel 130 is connected to the first slow-release chamber 120, and the opening of the other end is closed by the cover plate 131. The cover plate 131 can be as follows: Figure 3The structure shown as being integrally formed with the housing 100, the slow-release structure also includes a first elastic member 210, one end of the first elastic member 210 abuts against the cover plate 131, and the other end of the first elastic member 210 abuts against the first sealing member 200. When the first-level water treatment agent 121 is gradually consumed, the first elastic member 210 drives the first sealing member 200 to move toward the first slow-release chamber 120. Compared with gravity drive, this driving mode is more reliable and can reduce the probability of the first sealing member 200 being stuck in the connecting channel 130. In addition, since the cover plate 131 closes the opening connecting the connecting channel 130 and the second slow-release chamber 140, when filling the water treatment agent, it can effectively prevent the water treatment agent from entering the connecting channel 130 through the opening, thereby preventing the first elastic member 210 from being unable to be compressed and retracted.

[0062] In other embodiments, Figure 5 As shown, the slow-release structure also includes a top cover 400, and the top of the second slow-release chamber 140 defines an opening for filling the water treatment agent, and the top cover 400 can be covered on the opening, and the top cover 400 is detachably connected to the housing 100. Different from the above-mentioned embodiment, the connection channel 130 of the slow-release structure in this embodiment is connected to the second slow-release chamber 140 away from one end of the first slow-release chamber 120, and the opening is in an open state, one end of the first elastic member 210 is connected to the first sealing member 200, and the other end is abutted against the top cover 400. The connection channel 130 that runs through both ends is easier to process and shape during production, which is conducive to reducing the difficulty of the process. In addition, since the top cover 400 is a detachable structure, when the top cover 400 is removed and the first elastic member 210 is taken out, the first-level water treatment agent 121 can be filled into the first slow-release chamber 120 through the connection channel 130, and the second-level water treatment agent 141 can be directly filled into the second slow-release chamber 140, and filling the water treatment agent is more convenient.

[0063] Different from the gravity drive and elastic force drive in the above embodiments, in some embodiments, the bottom cover 330 of the first container 300 is made of magnetic materials such as iron, cobalt, nickel or their alloys, and a magnet is provided on the end face of the first sealing member 200 on the side close to the first slow-release chamber 120. The bottom cover 330 has an attractive force on the first sealing member 200, so that the first sealing member 200 is tightly against the first-level water treatment agent 121. When the first-level water treatment agent 121 is gradually consumed, the first sealing member 200 is attracted by the bottom cover 330, and the first sealing member 200 is driven to move toward the bottom cover 330. In other embodiments, the first sealing member 200 is made of magnetic materials, and a magnet is provided on the bottom cover 330 of the first container 300, which can attract the first sealing member 200 to move toward each other.

[0064] In some embodiments, Figure 1As shown, the water passage 110 includes a first pipe segment 111 and a second pipe segment 112 which are sequentially arranged along the direction of movement of the water flow. The shell 100 defines a first through hole 150 and a second through hole 160. The first through hole 150 connects the first pipe segment 111 and the first slow-release chamber 120, and the second through hole 160 connects the second pipe segment 112 and the first slow-release chamber 120. Thus, the water flow can flow from the first through hole 150 to the first slow-release chamber 120, and then flow out from the second through hole 160 to the water passage 110, forming a water flow loop so that the water in the first slow-release chamber 120 can blend with the water in the water passage 110. The diameter of the first pipe section 111 is smaller than that of the second pipe section 112, so that a pressure difference can be formed in the first pipe section 111 and the second pipe section 112. When the water flows from the first pipe section 111 with a smaller diameter to the second pipe section 112 with a larger diameter, the water pressure decreases, that is, the water pressure in the first pipe section 111 is greater than the water pressure in the second pipe section 112. The slow-release structure further includes a second sealing member 161, which is at least partially located in the second through hole 160.

[0065] When the external water valve is opened and the water flows, the water pressure in the first pipe section 111 is greater than the water pressure in the second pipe section 112. Since the first through hole 150 connects the first pipe section 111 and the first slow-release chamber 120, a relatively high pressure is formed in the first slow-release chamber 120, and a relatively low pressure is formed in the second pipe section 112. A pressure difference is formed at both ends of the second seal 161, driving the second seal 161 to move downward, so that the second seal 161 closes the second through hole 160, and the water in the first slow-release chamber 120 cannot flow through the second through hole 160 to the water channel 110. When the external water valve is closed and the water flow is relatively still, the water pressure in the first pipe section 111 is equal to the water pressure in the second pipe section 112, and there is no pressure difference between the upper and lower ends of the second seal 161. The second seal 161 moves upward under the action of buoyancy (when the average density of the second seal 161 is less than the density of water) or other forces, so that the second seal 161 opens the second through hole 160, and then the first slow release chamber 120 is connected to the water channel 110, and the water body in the first slow release chamber 120 blends with the closed water body in the water channel 110 to treat the water body in the water channel 110.

[0066] The slow-release structure of the present application can be applied to the use of various water treatment agents. To avoid redundancy, the present application takes the first slow-release chamber 120 and the second slow-release chamber 140 as an example to explain that the slow-release structure of the present application is only applicable to the use of the scale inhibitor. The scale inhibitor can be dissolved in water and release scale inhibitor active factors to interfere with the scale crystal nucleus in the early stage of scale formation, so that the scale crystal nucleus cannot continue to condense to form scale.

[0067] Compared with the formation of scale in flowing water, it is easier for scale to condense on the inner wall of the water pipe in a closed water body. The slow-release structure of the present application automatically realizes the closure and connection of the first slow-release chamber 120 and the water passage 110 for the two water flow states when the water flow is moving and the water flow is stationary. Then, when the terminal water-using equipment is turned on and the water flow is moving, the second through hole 160 is closed, and the scale inhibitor is not released into the flowing water body, and the scale inhibitor is preserved. When the terminal water-using equipment is turned off and the water flow is stationary, the second through hole 160 is opened, and the scale inhibitor is released into the closed water body to prevent scale condensation.

[0068] Based on the foregoing, the slow-release structure of the present application can effectively release the scale inhibitor based on the water flow state, greatly saving the amount of scale inhibitor used, extending the use time of the scale inhibitor after a single filling, and saving the cost of scale inhibition. At the same time, targeted scale inhibition of closed water bodies can improve the success rate of scale inhibition, prevent the waste of scale inhibitors caused by ineffective scale inhibition of flowing water bodies, and reduce the pollution of water resources. On the basis of releasing scale inhibitors in a graded and zoned manner, further distinguishing the water flow state to release the scale inhibitor can further extend the use time after a single filling. It can be understood that the scale inhibitor can be replaced with an antibacterial agent, a deodorant or other water treatment agent to prevent bacteria from growing or producing odors in closed water bodies.

[0069] A first check valve 151 is provided in the first through hole 150 so that the water flows in one direction from the first pipe section 111 to the first slow-release chamber 120. The first check valve 151 is in a long-term closed state, and the water containing the anti-scaling active factor in the first slow-release chamber 120 cannot flow into the first pipe section 111 through the first through hole 150. Specifically, since the first through hole 150 plays a role in balancing the pressure in the first slow-release chamber 120 and the first pipe section 111, when the water moves to form a relatively high pressure in the first pipe section 111, if the water pressure in the first slow-release chamber 120 is lower than the water pressure in the first pipe section 111, the first check valve 151 is temporarily opened so that the first slow-release chamber 120 forms a relatively high pressure equal to that in the first pipe section 111, and then the first check valve 151 is closed to prevent the anti-scaling active factor from being released from the first through hole 150 into the water passage 110, thereby completely disconnecting the first slow-release chamber 120 from the water passage 110.

[0070] like Figure 8As shown, the shell 100 also defines a second accommodating chamber 170 and is provided with a third through hole 180. The second accommodating chamber 170 is connected to the second tube section 112 through the second through hole 160, and is connected to the first slow-release chamber 120 through the third through hole 180. The slow-release structure also includes a third seal 500 and a second elastic member 510. The third seal 500 and the second elastic member 510 are arranged in the second accommodating chamber 170, and one end of the third seal 500 abuts against the second elastic member 510, and the other end extends to abut against the bottom surface of the first accommodating member 300. When the first accommodating member 300 is taken out, the second elastic member 510 drives the third seal 500 to move to close the third through hole 180.

[0071] Specifically, the third sealing member 500 includes a core rod and a sealing ring. The core rod is abutted against the second elastic member 510 and can move axially. The sealing ring is sleeved on the core rod. When the core rod is pressed down by the first accommodating member 300, the third through hole 180 is opened. When the first accommodating member 300 is taken out and the core rod is driven to move upward by the second elastic member 510, the sealing ring blocks the third through hole 180, and the water passage 110 is separated from the first slow-release chamber 120.

[0072] It should be noted that, along the moving direction of the first sealing member 200 to open the second through hole 160, the second sealing member 161 and the third sealing member 500 are sequentially spaced apart so that the second sealing member 161 can move upward to abut against the third sealing member 500, and the axial displacement of the second sealing member 161 can be limited by the third sealing member 500. When the first accommodating member 300 is loaded into the first slow-release chamber 120, the third sealing member 500 is pressed downward and maintains a certain distance from the lower chamber wall of the second accommodating chamber 170, so that the second sealing member 161 can move upward to abut against the lower end of the third sealing member 500, so as to limit the maximum value of the upward movement of the second sealing member 161.

[0073] The slow-release structure can be arranged on the angle valve to form a Fig. 9The slow-release valve shown can realize the functions of anti-scaling, antibacterial or deodorization while controlling the water flow switch. The interface of the inlet or outlet of the slow-release valve is consistent with the interface size of the existing angle valve, and can be interchanged with the existing angle valve. While realizing the water treatment function, it can also control the water flow between the main pipeline and the terminal water-using equipment. Specifically, the slow-release valve of the second aspect embodiment of the present application includes a valve body 600 and a slow-release structure mentioned in any of the above embodiments. The valve body 600 defines a third pipe section. Along the flow direction of the water flow, the third pipe section, the first pipe section 111 and the second pipe section 112 are connected in sequence. The valve body 600 also includes a valve core, which is arranged in the third pipe section to control the connection or closure of the third pipe section. When the terminal water-using equipment needs to be repaired or replaced, it is not necessary to close the water valve of the main pipeline. It is only necessary to close the slow-release valve to achieve the cut-off of the tributary. It can be understood that the slow-release structure is set on the angle valve. When the terminal water-using equipment is closed, a closed water body is formed in the pipe between the slow-release valve and the terminal water-using equipment, which can cover all the pipes from the water flowing out of the main pipe to the water flowing out of the terminal water-using equipment, so as to prevent scale, inhibit bacteria, deodorize or other treatments on the water body in the area.

[0074] The slow-release structure can also be set in water-using equipment such as water heaters and smart toilets, and the movement of water flow can be controlled by the switch of the water-using equipment. In the third embodiment of the present application, a water-using equipment is proposed, including an equipment body and the slow-release structure mentioned in any of the above embodiments. The water inlet of the equipment body and the water outlet of the water passage 110 are connected by a water pipe so that the water flows through the slow-release structure and then flows into the equipment body. The slow-release structure is applied to the water-using equipment, and the water treatment agent is stored in partitions and grades to achieve the slow-release of the water treatment agent in batches. The water treatment agent in the slow-release structure will not be dissolved in the water at the same time, causing a large amount of rapid loss of the water treatment agent, which greatly extends the use time after a single filling of the water treatment agent and reduces the use cost of the water-using equipment.

[0075] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A sustained-release structure, characterized in that: include: A shell, wherein the shell defines a water passage, a first slow-release chamber, a connecting passage, and a second slow-release chamber which are connected in sequence, wherein the first slow-release chamber is used to place a first-level water treatment agent, and the second slow-release chamber is used to place a second-level water treatment agent, and the first slow-release chamber is connected to the water passage; A first sealing member, wherein the first sealing member is slidably connected to the connecting channel, one end of the connecting channel is connected to the first slow-release chamber, and the other end of the connecting channel is connected to the second slow-release chamber; A first accommodating member, the first accommodating member is disposed in the first slow-release chamber, the first accommodating member divides the first slow-release chamber into: a first accommodating chamber located inside the first accommodating member and a first water-passing gap located outside the first accommodating member, the first accommodating chamber is used to accommodate the first-level water treatment agent, the top of the first accommodating member has an open opening, the first accommodating chamber is communicated with the connecting channel through the open opening, and a first connecting portion connecting the first water-passing gap and the first accommodating chamber is provided on the outer circumferential surface of the first accommodating member; Among them, the outer peripheral surface of the first seal abuts against the inner wall of the connecting channel to separate the second slow release chamber from the first slow release chamber, and the end surface of the first seal close to the first slow release chamber can abut against the first-level water treatment agent and move toward the first slow release chamber as the first-level water treatment agent decreases. The first seal can move to a first position where the first water gap and the second slow release chamber are connected.

2. The sustained-release structure according to claim 1, characterized in that: The first accommodating member includes a bottom cover and a first protrusion connected to the bottom cover, the first protrusion abuts against the bottom wall of the first slow-release chamber to form a second water flow gap between the bottom cover of the first accommodating member and the bottom wall of the first slow-release chamber, the second water flow gap is connected to the water flow channel, and the first water flow gap extends axially to be connected to the second water flow gap.

3. The sustained-release structure according to claim 1, characterized in that: The first accommodating member further includes a plurality of second protrusions, each of which is connected to the outer peripheral surface of the first accommodating member and extends radially to abut against the inner wall of the first sustained-release cavity. In addition, adjacent second protrusions are arranged at intervals along the circumferential direction, and the first water-passing gap is defined between the second protrusions.

4. The sustained-release structure according to claim 1, characterized in that: The first accommodating member includes a bottom cover, either the bottom cover or the first sealing member is made of a magnetic material, and the other includes a magnet, and the first sealing member is attracted by the bottom cover to drive the first sealing member to move toward the bottom cover.

5. The sustained-release structure according to claim 1, characterized in that: The shell includes a first main body and a second main body, the first main body is detachably connected to the second main body, the first main body defines the water passage, the first main body and the second main body jointly define the first slow-release chamber, and the second main body defines the connecting passage and the second slow-release chamber.

6. The sustained-release structure according to claim 1, characterized in that: The connecting channel extends into the second slow-release chamber, and the side wall of the connecting channel is provided with a second connecting portion for communicating with the second slow-release chamber. The shell includes a cover plate, and the cover plate closes the opening of the connecting channel at one end of the second slow-release chamber. The slow-release structure also includes a first elastic member, one end of the first elastic member abuts against the cover plate, and the other end abuts against the first sealing member to drive the first sealing member to move toward the first slow-release chamber.

7. The sustained-release structure according to claim 1, characterized in that: The slow-release structure also includes a top cover, which is detachably connected to the shell, and the end of the connecting channel away from the first slow-release chamber is connected to the second slow-release chamber. The slow-release structure also includes a first elastic member, one end of the first elastic member abuts against the top cover, and the other end abuts against the first sealing member to drive the first sealing member to move toward the first slow-release chamber.

8. The sustained-release structure according to claim 1, characterized in that: The water passage comprises a first pipe section and a second pipe section arranged in sequence along the moving direction of the water flow, the housing defines a first through hole and a second through hole, the first through hole communicates with the first pipe section and the first slow-release cavity, the second through hole communicates with the second pipe section and the first slow-release cavity, the diameter of the first pipe section is smaller than the diameter of the second pipe section, and the slow-release structure further comprises a second sealing member, at least part of which is located in the second through hole; Wherein, when the water flows along the direction from the first pipe section to the second pipe section, the water pressure in the first pipe section is greater than the water pressure in the second pipe section, and a pressure difference is formed at both ends of the second seal to drive the second seal to move downward, and the second seal closes the second through hole; and, when the water stops flowing, the second seal opens the second through hole.

9. The sustained-release structure according to claim 8, characterized in that: The slow-release structure further includes a first check valve, which is disposed in the first through hole to allow water to flow in one direction along the water passage to the first slow-release chamber.

10. The sustained-release structure according to claim 8, characterized in that: The shell also defines a second accommodating chamber and a third through hole, the second accommodating chamber is connected to the second tube section through the second through hole, and is connected to the first slow-release chamber through the third through hole, the slow-release structure also includes a third sealing member and a second elastic member sequentially arranged in the second accommodating chamber, one end of the third sealing member abuts against the second elastic member, and the other end abuts against the bottom surface of the first accommodating member, and the second elastic member is configured to drive the third sealing member to move to close the third through hole when the first accommodating member is taken out.

11. A slow-release valve, characterized in that: include: A valve body, defining a third pipe section, the valve body including a valve core; The sustained-release structure according to any one of claims 1 to 10; Among them, the valve body is connected to the slow-release structure, and along the flow direction of the water flow, the third pipe section and the water passage are connected in sequence, and the valve core is arranged in the third pipe section to control the third pipe section to be connected or closed.

12. Water-using equipment, characterized in that: include: Equipment body; The sustained-release structure according to any one of claims 1 to 10; A water pipe has one end connected to the water outlet of the water passage and the other end connected to the water inlet of the device body, so that water flows through the slow-release structure and then flows into the device body.

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