flow-through valve
By installing a live water valve assembly and a water diversion baffle assembly at the bottom of the expansion tank, the problem of local dead water zones inside the expansion tank is solved, achieving effective water diversion and prevention of algae and microorganisms, thus improving water quality stability and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏安巢环境系统有限公司
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
Smart Images

Figure CN224551734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically to a live water valve. Background Technology
[0002] During operation, the water temperature in an air conditioning water system fluctuates depending on the cooling / heating mode. During cooling, the water temperature may drop to 7-12℃, while during heating, it may rise to 40-60℃. Based on the principle of thermal expansion and contraction, the water volume changes accordingly. Therefore, an expansion tank is used in the air conditioning water system. The expansion tank uses an air bladder or diaphragm to separate the water on one side of the tank, while the other side is pre-filled with nitrogen or air. When the water temperature rises and the water volume expands, the gas space is compressed to absorb excess water; when the water temperature drops, the gas expands and pushes the water back into the system, thus maintaining stable pressure.
[0003] Currently, expansion tanks are typically installed on the return water pipe of air conditioning water systems. Shut-off valves are installed at the inlet and outlet, and air vents are provided. During maintenance, the shut-off valves on both sides are closed, and the air vents can be used to release pressure and drain the water stored in the expansion tank.
[0004] The core function of the ordinary shut-off valve used in expansion tanks is to control the flow of water. It achieves one-way shut-off by rotating a ball. It has a simple structure, but the water flows only in one direction and cannot mix water of different temperatures or qualities. This can easily lead to local dead water zones in the expansion tank, where algae spores accumulate and multiply using the remaining nutrients. This results in the growth of algae and other microorganisms in the expansion tank, affecting its normal use and consequently impacting the water quality of the entire water system. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given that the core function of the ordinary shut-off valve used in the existing expansion tank is to control the flow of water, and to achieve unidirectional shut-off by rotating the ball, the structure is simple. When water flows through, only unidirectional flow occurs, which cannot mix water bodies of different temperatures or qualities. This can easily lead to the formation of local dead water zones in the expansion tank, where algal spores accumulate and multiply using the residual nutrients, resulting in the growth of algae and other microorganisms in the expansion tank, which affects the normal use of the expansion tank.
[0007] To achieve the above objectives, this utility model provides the following technical solutions: an expansion tank; a live water valve assembly for live water; and a water distribution baffle assembly for water distribution;
[0008] The expansion tank includes: a tank body; and a flange fixed to the bottom of the tank body;
[0009] The live water valve assembly includes: a valve body detachably connected to the lower part of the flange; and a water distribution pipe fixed to the top of the valve body;
[0010] The water distribution and blocking pin assembly includes: a blocking pin plate inserted into the water distribution pipe; side wing plates fixed to the left and right sides of the blocking pin plate; a first blocking groove formed on the side wing plates and the side end face of the blocking pin plate; a second blocking groove provided below the first blocking groove; and a bottom protrusion fixed to the bottom of the blocking pin plate.
[0011] As a further improvement of this utility model: the bottom of the side wing plate has a conical structure, and the side wing plate and the stop pin plate form a cross-shaped structure.
[0012] As a further embodiment of this utility model, the live water valve assembly further includes: an exhaust valve installed at the front end of the valve body; and an outlet disposed below the exhaust valve.
[0013] As a further embodiment of this utility model, the live water valve assembly further includes: an inlet end threadedly connected to the right side of the valve body; and an outlet end threadedly connected to the left side of the valve body.
[0014] As a further embodiment of this utility model, the live water valve assembly further includes: a shut-off valve installed inside the inlet and outlet ends; and a handle rotatably installed at the front end of the shut-off valve.
[0015] As a further improvement of this utility model: the valve body is a three-way structure, the shut-off valve is a ball valve, and the water distribution pipe is threadedly connected to the fixing bolt.
[0016] As a further embodiment of this utility model: the inlet and outlet are connected to the valve body through shut-off valves, and the valve body is connected to the outlet through an exhaust valve.
[0017] As a further embodiment of this utility model, the expansion tank further includes: a connecting pipe welded to the bottom of the flange; and a fixing bolt threaded to the outside of the connecting pipe.
[0018] As a further improvement of this utility model, the water valve assembly further includes a PTFE gasket disposed between the connecting pipe and the water distribution pipe.
[0019] As a further improvement of this utility model, the water-diverting and blocking pin assembly penetrates the interior of the connecting pipe.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] 1. This utility model installs a live water valve assembly at the bottom of the expansion tank. The live water valve assembly is equipped with a water diversion and baffle assembly. The water diversion and baffle assembly can divert the inflow and outflow of water. The water can enter the expansion tank through the angled gap formed between the side wing plate and the baffle plate, so that the water flows with impact, thereby avoiding the formation of local dead water areas in the expansion tank and the generation of algae and other microorganisms.
[0022] 2. This utility model has two shut-off valves that can close the inlet and outlet ends respectively, which facilitates the disassembly and maintenance of the tank. At the same time, the live water valve assembly is detachably connected to the expansion tank, which allows the live water valve assembly to be disassembled. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a live water valve;
[0024] Figure 2 This is a schematic diagram of the structure of the live water valve assembly.
[0025] Figure 3 A schematic diagram of the water distribution and baffle assembly of the live water valve;
[0026] Figure 4 This is a half-sectional schematic diagram of the live water valve assembly.
[0027] Figure 5 This is a bottom view of the expansion tank of the live water valve.
[0028] In the diagram: 1. Expansion tank; 101. Tank body; 102. Flange; 103. Fixing bolt; 104. Connecting pipe; 2. Live water valve assembly; 201. Valve body; 202. Inlet; 203. Outlet; 204. Handle; 205. Shut-off valve; 206. Air vent valve; 207. Outlet; 208. PTFE gasket; 209. Divider pipe; 3. Divider baffle assembly; 301. Baffle plate; 302. Side wing plate; 303. First baffle groove; 304. Second baffle groove; 305. Bottom protrusion. Detailed Implementation
[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0032] Example 1
[0033] Please see Figures 1-4 This is the first embodiment of the present invention.
[0034] This embodiment provides a live water valve, including an expansion tank 1; a live water valve assembly 2 for live water; and a water distribution baffle assembly 3 for water distribution;
[0035] The expansion tank 1 includes: a tank body 101; and a flange 102 fixed to the bottom of the tank body 101;
[0036] The live water valve assembly 2 includes: a valve body 201 detachably connected to the lower part of the flange 102; and a water distribution pipe 209 fixed to the top of the valve body 201;
[0037] The water distribution and blocking pin assembly 3 includes: a blocking pin plate 301 inserted into the water distribution pipe 209; side wing plates 302 fixed on the left and right sides of the blocking pin plate 301; a first blocking groove 303 formed on the side end face of the side wing plate 302 and the blocking pin plate 301; a second blocking groove 304 provided below the first blocking groove 303; and a bottom protrusion 305 fixed to the bottom of the blocking pin plate 301.
[0038] Specifically, the bottom of the side wing plate 302 has a conical structure, and the side wing plate 302 and the stop plate 301 form a cross-shaped structure.
[0039] Furthermore, the side wing plate 302 and the baffle plate 301 are integrally injection molded, and the water flow can enter the expansion tank 1 through the angled gap formed between the side wing plate 302 and the baffle plate 301, so that the water flow impacts and flows, thereby avoiding the formation of local dead water areas in the expansion tank 1 and the generation of algae and other microorganisms.
[0040] Specifically, the live water valve assembly 2 also includes: an air vent valve 206 installed at the front end of the valve body 201; and an outlet 207 located below the air vent valve 206.
[0041] Furthermore, when the tank 101 is opened, during maintenance, the water can be discharged through the outlet 207 by opening the vent valve 206 to relieve pressure and drain water.
[0042] Specifically, the live water valve assembly 2 also includes: an inlet end 202 threadedly connected to the right side of the valve body 201; and an outlet end 203 threadedly connected to the left side of the valve body 201.
[0043] Furthermore, the ends of the water outlet 203 and the water inlet 202 are threaded, allowing for detachable connection with the air conditioning water system pipes. The water outlet 203 and the water inlet 202 are used to connect to the air conditioning water system pipes, allowing water to flow in and out.
[0044] Specifically, the live water valve assembly 2 also includes: a shut-off valve 205 installed inside the inlet end 202 and the outlet end 203; and a handle 204 rotatably installed at the front end of the shut-off valve 205.
[0045] Furthermore, after the shut-off valve 205 is closed, the outlet end 203 and the inlet end 202 are mutually cut off, preventing water from entering or leaving the tank 101, thus facilitating the disassembly and maintenance of the tank 101.
[0046] In use, the air conditioning water system is connected to the tank 101 through the live water valve assembly 2. Water flows into the valve body 201 through the inlet end 202 and enters the tank 101 through one side of the water-dividing baffle assembly 3 inside the water-dividing pipe 209. The water in the tank 101 can be discharged back into the valve body 201 through the other side of the water-dividing baffle assembly 3 inside the water-dividing pipe 209. The water-dividing baffle assembly 3 is integrally injection molded by the side wing plate 302 and the baffle plate 301. Water can enter the expansion tank 1 through the angled gap formed between the side wing plate 302 and the baffle plate 301 and be discharged outward through the outlet end 203. When the tank 101 is under maintenance, the water can be discharged from the outlet 207 by opening the exhaust valve 206 to relieve pressure and drain water.
[0047] In summary, by installing a live water valve assembly 2 at the bottom of the expansion tank 1, and setting a water diversion and baffle assembly 3 inside the live water valve assembly 2, the water diversion and baffle assembly 3 can divert the inflow and outflow of water. The water can enter the expansion tank 1 through the angled gap formed between the side wing plate 302 and the baffle plate 301, so that the water flows with impact, thereby avoiding the formation of local dead water zones in the expansion tank 1 and the generation of algae and other microorganisms.
[0048] Example 2
[0049] Please see Figures 3-5 This is the second embodiment of the present utility model.
[0050] Specifically, valve body 201 is a three-way structure, gate valve 205 is a ball valve, and water distribution pipe 209 is threadedly connected to fixing bolt 103.
[0051] Furthermore, the handle 204 can drive the shut-off valve 205 to rotate. After the valve ball inside the shut-off valve 205 rotates, the angle of the valve ball changes, so that the shut-off valve 205 can cut off or allow flow.
[0052] Specifically, the inlet end 202 and the outlet end 203 are connected to the valve body 201 through the shut-off valve 205, and the valve body 201 is connected to the outlet 207 through the air vent valve 206.
[0053] Furthermore, a pressure gauge can be installed on the exhaust valve 206 to detect the pressure of the tank 101. During maintenance, the pressure can be released and water drained through the exhaust valve 206.
[0054] Specifically, the expansion tank 1 also includes: a connecting pipe 104 welded to the bottom of the flange 102; and a fixing bolt 103 threaded to the outside of the connecting pipe 104.
[0055] Furthermore, the fixing bolt 103 is connected to the outside of the connecting pipe 104 and the water distribution pipe 209, which facilitates the installation of the live water valve assembly 2 at the bottom of the expansion tank 1.
[0056] Specifically, the live water valve assembly 2 also includes a PTFE gasket 208 disposed between the connecting pipe 104 and the water distribution pipe 209.
[0057] Furthermore, the PTFE gasket 208 is used to seal between the connecting pipe 104 and the water distribution pipe 209.
[0058] Specifically, the water-dividing and blocking pin assembly 3 penetrates the interior of the connecting pipe 104.
[0059] Furthermore, the water diversion and baffle assembly 3 is inserted into the connecting pipe 104 to divert the incoming and outgoing water flow, causing the water flow to impact and flow.
[0060] In use, the live water valve assembly 2 connects the connecting pipe 104 and the water distribution pipe 209 together with the fixing bolt 103. A PTFE gasket 208 is installed between the connecting pipe 104 and the water distribution pipe 209 to seal them. The handle 204 can drive the shut-off valve 205 to rotate. After the valve ball inside the shut-off valve 205 rotates, the valve ball angle changes so that the shut-off valve 205 can cut off or allow flow. When it is necessary to disassemble the tank 101, the handle 204 drives the shut-off valve 205 to rotate and close the water inlet 202 and the water outlet 203. At this time, the water inlet 202 and the water outlet 203 can be separated from the air conditioning water system, thereby achieving the effect of disassembling the expansion tank 1.
[0061] In summary, the two shut-off valves 205 can be used to close the inlet 202 and outlet 203 respectively, which facilitates the disassembly and maintenance of the tank 101. At the same time, the live water valve assembly 2 is detachably connected to the expansion tank 1, which allows the live water valve assembly 2 to be disassembled.
[0062] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0063] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0064] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0065] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A live water valve, characterized in that, include: Expansion tank (1); live water valve assembly for live water (2); and water distribution baffle assembly for water distribution (3); The expansion tank (1) includes: a tank body (101); and a flange (102) fixed to the bottom of the tank body (101). The live water valve assembly (2) includes: a valve body (201) detachably connected to the lower part of the flange (102); and a water distribution pipe (209) fixed to the top of the valve body (201). The water distribution and blocking pin assembly (3) includes: a blocking pin plate (301) inserted into the water distribution pipe (209); side wing plates (302) fixed on the left and right sides of the blocking pin plate (301); a first blocking groove (303) opened on the side end face of the side wing plate (302) and the blocking pin plate (301); a second blocking groove (304) provided below the first blocking groove (303); and a bottom protrusion (305) fixed to the bottom of the blocking pin plate (301).
2. The live water valve according to claim 1, characterized in that: The bottom of the side wing plate (302) is a conical structure, and the side wing plate (302) and the stop plate (301) form a cross-shaped structure.
3. The live water valve according to claim 2, characterized in that: The live water valve assembly (2) further includes: an air vent valve (206) installed at the front end of the valve body (201); and an outlet (207) disposed below the air vent valve (206).
4. The live water valve according to claim 3, characterized in that: The live water valve assembly (2) further includes: an inlet end (202) threaded to the right side of the valve body (201); and an outlet end (203) threaded to the left side of the valve body (201).
5. The live water valve according to claim 4, characterized in that: The live water valve assembly (2) further includes: a shut-off valve (205) installed inside the inlet end (202) and the outlet end (203); and a handle (204) rotatably installed at the front end of the shut-off valve (205).
6. The live water valve according to claim 5, characterized in that: The valve body (201) is a three-way structure, the shut-off valve (205) is a ball valve, and the water distribution pipe (209) is threadedly connected to the fixing bolt (103).
7. The live water valve according to claim 6, characterized in that: The inlet (202) and outlet (203) are connected to the valve body (201) through the shut-off valve (205), and the valve body (201) is connected to the outlet (207) through the exhaust valve (206).
8. The live water valve according to claim 7, characterized in that: The expansion tank (1) further includes: a connecting pipe (104) welded to the bottom of the flange (102); and a fixing bolt (103) threaded to the outside of the connecting pipe (104).
9. The live water valve according to claim 8, characterized in that: The live water valve assembly (2) further includes a PTFE gasket (208) disposed between the connecting pipe (104) and the water distribution pipe (209).
10. The live water valve according to claim 9, characterized in that: The water-diverting pin assembly (3) penetrates the interior of the connecting pipe (104).