Water inlet valve

Abstract

The utility model provides a water inlet valve which comprises a valve body, a water flow sensor is arranged on the valve body, an impeller is arranged in the water flow sensor, a water inlet channel and an impeller cavity communicated with the water inlet channel are formed in the valve body, the impeller is assembled in the impeller cavity, and the extension direction of the water inlet channel serves as the first direction. The water supplementing valve, the water flow sensor and the first heat exchange connector are arranged on the impeller cavity in a surrounding mode in the first direction, the water supplementing valve and the first heat exchange connector are oppositely arranged, the water supplementing valve is connected with the communicating cavity through a water supplementing valve water outlet channel, and the axial direction of the water supplementing valve water outlet channel and the axial direction of the water inlet channel are in an inclined relation. Compared with a water inlet valve adopting a lower side inserting structure, the water inlet valve is compact in structure, convenient to install and more stable in water flow signal acquisition.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a water inlet valve. Background Art

[0002] The water inlet valve is a commonly used device in water pipes. After the water inlet valve is connected to the water supply network, water is connected to the water pipe. Among them, the water pump interface faces sideways, and the installation method is side-insertion type, which is a side-insertion water inlet valve. The side-insertion water inlet valve mainly includes a valve body, a water flow sensor, a water inlet and a water pump interface. The water pump interface is close to the water inlet, which is a lower side insertion type. Existing water inlet valves generally adopt the lower side insertion type, but the lower side insertion type is not only not conducive to maintenance and installation, but also the water flow sensor signal is unstable. Utility Model Content

[0003] The main purpose of the utility model is to provide a water inlet valve that is convenient to maintain and install while making the water flow signal more stable.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a water inlet valve, the valve body is provided with a water inlet channel, a water flow sensor, and a first heat exchange interface for connecting to the heat exchange plate and passing water into the heat exchange plate, the water flow sensor is provided with an impeller, and an impeller cavity is provided on the communication path between the water inlet channel and the first heat exchange interface, the impeller is assembled in the impeller cavity, and the valve body is also provided with a water supply valve connected to the impeller cavity, with the extension direction of the water inlet channel as the first direction, the water supply valve, water flow sensor and the first heat exchange interface are arranged around the impeller cavity along the first direction, and the water supply valve and the first heat exchange interface are arranged opposite to each other.

[0005] In one embodiment, the impeller includes an axle and a sleeve arranged on the axle, the sleeve has blades evenly distributed along the circumference, and the axis of the water inlet channel is offset from the central axis of the impeller so that water flow can impact the blades of the impeller through the water inlet channel.

[0006] In one embodiment, the first heat exchange interface is arranged along a second direction, the second direction is perpendicular to the first direction, and the water supply valve is connected to the first heat exchange interface through the impeller cavity.

[0007] In one embodiment, the axis of the water inlet channel is offset from the center axis of the impeller so that water can flow through the water inlet channel to impact the blades of the impeller. When the outer contour of the impeller rotates one circle, a circular trajectory with a radius of r is formed, and the center axis of the water inlet channel is tangent to the concentric circle of the circular trajectory.

[0008] In one embodiment, one end of the water inlet channel is connected to the impeller chamber, and the other end is provided with a water inlet joint.

[0009] In one embodiment, a safety valve interface is further provided on the valve body, and the safety valve interface is provided at an end away from the water inlet channel along the first direction.

[0010] In one embodiment, a second heat exchange interface is further provided on the valve body, and the first heat exchange interface and the second heat exchange interface are provided on the same plane.

[0011] In one embodiment, a water supply valve outlet channel communicating with the water supply valve is provided on the valve body, and the water supply valve is communicated with the second heat exchange interface through the water supply valve outlet channel.

[0012] In one embodiment, the axial inclination angle between the axial direction of the water outlet channel of the water supply valve and the axial direction of the water inlet channel is 25° to 75°.

[0013] In one embodiment, a pressure sensor interface and a water pump interface are further provided on the side of the valve body near the safety valve interface, and the pressure sensor interface is communicated with the water pump interface.

[0014] In one embodiment, the offset distance between the central axis of the water inlet channel and the central axis of the water inlet joint is L1, where 0.25cm<L1<4cm, and the offset distance between the axis of the water inlet channel and the central axis of the impeller is L2, where 2cm<L2<10cm.

[0015] The utility model adopts a side-insert water inlet valve. Compared with the lower side-insert type, a water flow sensor is installed on the side of the valve body near the water inlet, and a water pump interface is installed on the side of the valve body near the safety valve interface. This structure is convenient for installation and has more stable performance. When applied to most upper side-insert water channels on the market, since the water flow sensor is placed in front and connected to the impeller cavity, this structure can save a lot of space without affecting the function of the sensor. At the same time, the axis of the impeller shaft deviates downward from the water inlet channel, and the water replenishment channel is connected to the impeller cavity, so that the water flow sensor can simultaneously monitor the bathroom water flow and the water replenishment flow, thereby improving the stability and accuracy of the water flow signal.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0018] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0019] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention in a three-dimensional perspective;

[0020] Figure 2 This is a schematic structural diagram of the first embodiment of the present invention from a main viewing angle;

[0021] Figure 3 This is a schematic structural diagram of the first embodiment of the present invention from a left perspective;

[0022] Figure 4 This is a schematic structural diagram of the first embodiment of the present invention from a top view;

[0023] Figure 5 This is a schematic structural diagram of the first embodiment of the present invention from a bottom-up perspective;

[0024] Figure 6 This is a schematic structural diagram of the impeller of the first embodiment of the present invention from a plane cross-sectional perspective;

[0025] Figure 7 This is a schematic structural diagram of a water supply valve according to a first embodiment of the present invention from a plane cross-sectional perspective;

[0026] Figure 8 It is a schematic diagram of an interface connection module according to a first embodiment of the present invention.

[0027] Figure 9 It is a structural schematic diagram of the impeller provided in the first embodiment of the present invention from a plane cross-sectional perspective, and the specific positions represented by L1 and L2 are marked.

[0028] Figure 10 This is a schematic structural diagram of the valve body provided in the second embodiment of the present invention from a top view.

[0029] The above drawings include the following reference numerals:

[0030] 1. Valve body; 1011. First heat exchange interface; 1012. Second heat exchange interface; 102. Safety valve interface; 103. Water inlet; 104. Water inlet channel; 105. Impeller chamber; 106. Water supply valve outlet channel; 107. Connecting chamber; 108. Pressure sensor interface; 109. Water pump interface;

[0031] 2. Water flow sensor; 21. Impeller;

[0032] 3. Water inlet connector;

[0033] 4. Water supply valve; 41. Water supply channel;

[0034] 200. Heating system;

[0035] 300. Bathroom system. DETAILED DESCRIPTION

[0036] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be understood that, in the description of the present invention, when a component is referred to as being "disposed on," "provided on," or "mounted on" another component, it may be directly disposed on the other component or there may be a central component. When a component is referred to as being "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0038] When an element is referred to as being “connected” to another element, it may be directly connected to the other element or intervening elements may be present. In contrast, when an element is referred to as being “directly connected” to another element, there are no intervening elements present.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. Directional terms such as "first direction" and "second direction" refer to a linear direction unless otherwise specifically specified.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. In the description herein, "a plurality" means two or more. The term "or / and" as used herein includes any and all combinations of one or more of the related listed items.

[0041] Example 1

[0042] Reference Figure 1-8In an embodiment of the utility model, a water inlet valve is disclosed, which is used in a water exchange path of a wall-mounted boiler plate. The water inlet valve includes a valve body 1, on which is provided a water inlet 103, a water flow sensor 2, and a first heat exchange interface 1011 for connecting to a heat exchange plate and introducing water flow into the heat exchange plate. An impeller 21 is provided in the water flow sensor 2, and a water inlet channel 104 communicating with the water inlet 103 is provided in the valve body 1. An impeller chamber 105 is provided on the communication path between the water inlet channel 104 and the first heat exchange interface 1011, and the impeller 21 is assembled in the impeller chamber 105.

[0043] For ease of description, Figure 1 As shown, the water inlet valve is oriented with the water inlet 103 at the front and the opening of the first heat exchange interface 1011 at the bottom. When a user stands facing the front of the valve body, the side of the valve body 1 facing the user's right hand is defined as the right, and the side of the valve body 1 facing the user's left hand is defined as the left. Furthermore, the height direction of the valve body 1 refers to the up-down direction, the width direction of the valve body 1 refers to the left-right direction, and the thickness direction of the valve body 1 refers to the front-to-back direction. The direction in which the water inlet channel 104 extends is the first direction, and the second direction is perpendicular to the first direction. That is, the first direction is the front-to-back direction, and the second direction is the up-to-down direction.

[0044] In an embodiment of the present utility model, a water supply valve 4 connected to the impeller chamber 105 is also provided on the valve body 1. The water supply valve 4 is connected to the impeller chamber 105 through a water supply channel 41. The water supply channel 41, the water flow sensor 2 and the first heat exchange interface 1011 are arranged around the impeller chamber 105 along a first direction, and the water supply valve 4 and the first heat exchange interface 1011 are arranged opposite to each other, that is, the water supply valve 4 is located above the valve body 1, and the water flow sensor 2 is located on the left side of the valve body 1.

[0045] In an embodiment of the present utility model, a safety valve interface 102 and a water pump interface 109 are also provided on the valve body 1. The safety valve interface 102 is used to install the safety valve. The safety valve interface 102 is arranged on the rear side of the valve body 1, and the water pump interface 109 is arranged on the side of the safety valve interface 102, which is a side plug-in structure. The present utility model is a side plug-in water inlet valve.

[0046] Reference Figure 1-4 As shown, in the embodiment of the present utility model, a connecting cavity 107 is further opened in the valve body 1, and the connecting cavity 107 is directly connected to the water pump interface 109. A water supply valve outlet channel 106 is provided between the water supply valve 4 and the connecting cavity 107. The water supply valve outlet channel 106 is inclined to the water inlet channel 104. The impeller chamber 105 is downwardly connected to the first heat exchange interface 1011, and the connecting cavity 107 is downwardly connected to the second heat exchange interface 1012, making the overall structure of the valve body 1 more compact.

[0047] The water inlet valve of this embodiment is installed at the water inlet end of the wall-mounted boiler water circuit, and is used to connect the tap water inlet, the heat exchange plate and the wall-mounted boiler circulating water pump, and at the same time plays the role of replenishing water for the heating system 200 and monitoring the water parameters of the bathroom system 300. Figure 8 As shown, the valve body 1 has two functions: heating for the wall-mounted boiler and bathroom. The specific water channel functions are as follows:

[0048] 1. Bathroom function: Water flows through the water inlet channel 104, flows through the impeller chamber 105, and flows out from the first heat exchange interface 1011 into the bathroom system 300. The water after heat exchange can meet the user's bathroom needs.

[0049] 2. Heating function: The heated water flows through the connecting cavity 107 and enters the heating system 200 through the second heat exchange interface 1012. The water circulates in the heating water channel under the pressure generated by the water pump to meet the user's heating needs.

[0050] It should be noted that the heating system 200 specifically refers to terminal heat dissipation components such as radiators, floor heating pipes or fan coils. The heated water enters through the second heat exchange interface 1012, and is then sent to the above-mentioned terminal heat dissipation components through the water pump interface 109 by the water pump connected to the water pump interface 109. The heat is dissipated into the indoor air by heat dissipation, thereby increasing the indoor ambient temperature to meet the user's heating needs. The bathroom system specifically refers to a water-using device for users to perform operations such as showering and washing. Therefore, the heating system 200 and the bathroom system 300 are both relatively mature technologies in this field, and the specific structures of the heating system 200 and the bathroom system 300 are not repeated in this embodiment. The impeller chamber 105 is connected to the first heat exchange interface 1011, and the connecting chamber 107 is connected to the second heat exchange interface 1012. The first heat exchange interface 1011 and the second heat exchange interface 1012 are arranged on the same plane to facilitate installation with the heat exchange plate.

[0051] Reference Figure 6 As shown, a water inlet connector 3 is provided at the water inlet 103 of the valve body 1 .

[0052] In one embodiment, the water inlet connector 3 and the water flow sensor 2 can be installed on the valve body by means of pin installation.

[0053] In one embodiment, the water inlet 103 may be equipped with a filter screen and an activated carbon assembly to filter impurities in the water flow so that the impurities do not enter the water inlet channel 104, thereby enhancing the corrosion resistance of the entire waterway.

[0054] Reference Figure 6As shown, the impeller blades in the water flow sensor 2 are impacted by water flow to make the impeller 21 rotate, thereby driving the permanent magnet to cut the Hall magnetic field to generate an electromagnetic pulse signal, and the pulse signal is output to the wall-mounted boiler main controller through a wire to obtain the water flow parameters. A part of the impeller 21 included in the water flow sensor 2 is arranged in the impeller cavity 105. Compared with the traditional side-inserted water inlet valve, the water flow sensor 2 of the water inlet valve is connected to the impeller cavity 105 and the water inlet channel 104, and is arranged at the front end of the valve body. At the same time, the water replenishment channel 41 is connected to the impeller cavity 105, so that the water flow sensor 2 can simultaneously monitor the bathroom water flow and the replenishment water flow, thereby improving the stability and accuracy of the water flow signal.

[0055] Reference Figure 9 Specifically, the impeller 21 includes an axle and a sleeve disposed on the axle. The sleeve has blades evenly distributed along the axial direction. The axis of the axle deviates downward from the water inlet channel 104. When the impeller 21 is correctly placed, the outer contour of the impeller 21 forms a circular trajectory with a radius of r when rotating one circle. The central axis of the water inlet channel 104 is tangent to the concentric circle of the circular trajectory, so that the incoming water flow can directly impact the blades of the impeller 21. Compared with the impeller 21 using an axial flow channel, this setting can make the water flow signal more stable. The specific offset calculation method is as follows:

[0056] 1. The offset distance between the central axis of the water inlet channel 104 and the central axis of the water inlet connector 3 is L1, where 0.25 cm < L1 < 4 cm. For example, when L1 = 0.25 cm, the impact of the incoming water flow on the valve body 1 becomes minimal. When L1 = 4 cm, the impact of the incoming water flow on the valve body 1 becomes maximum. When L1 exceeds the range, the installation becomes more difficult.

[0057] 2. The offset distance between the axis of the water inlet channel 104 and the central axis of the impeller 21 is L2, where 2cm<L2<10cm. For example, when L2=2cm, the impact of the incoming water flow on the impeller 21 is small. When L2 increases, the impact of the incoming water flow on the impeller 21 first increases and then decreases. When L2=10cm, the impact of the incoming water flow on the impeller 21 is small. When L2 exceeds the range, the installation becomes more difficult.

[0058] 3. The optimal sizes of L1 and L2 are determined by the dimensions of the selected impeller 21: The outer contour of the impeller 21 forms a circular path with a radius of r when it rotates one revolution. A concentric circle of this circular path with a radius of r / 2 is tangent to the central axis of the water inlet channel 104. At this point, L1 and L2 reach their optimal sizes. The greater the deviation of L1 and L2 from their optimal sizes, the more unstable the signal from the water flow sensor 2 becomes.

[0059] Reference Figure 7As shown, the water supply valve 4 is connected to the impeller chamber 105 through the water supply channel 41, and the water supply valve 4 is connected to the connecting chamber 107 through the water supply valve outlet channel 106. When the water flow of the heating system 200 is too small, the water supply switch of the water supply valve 4 is opened, and the water flows into the heating system 200 from the water inlet 103, passes through the water inlet channel 104, the impeller chamber 105, the water supply channel 41, the water supply valve outlet channel 106, and the connecting chamber 107 in turn, and enters the heating system 200 through the second heat exchange interface 1012 to replenish water.

[0060] In one embodiment, the height of the water supply valve 4 relative to the water supply channel 41 can be flexibly adjusted according to assembly requirements. The inclination angle of the water supply valve outlet channel 106 relative to the water inlet channel 104 can be adjusted between 25° and 75°. This angle range facilitates the processing of the valve body 1 and prevents the valve body 1 from being too large or too narrow in the vertical and front-to-back directions, which would result in an excessively large or narrow spacing between the first heat exchange interface 1011 and the second heat exchange interface 1012 and increase installation difficulty. For example, the inclination angle of the water supply valve outlet channel 106 relative to the water inlet channel 104 can be 30°, 40°, 45°, 50°, 60°, etc.

[0061] Reference Figure 4 and Figure 8 As shown, a water pump interface 109 is provided on the side of the valve body 1. A pressure sensor interface 108 is provided near the safety valve interface 102 of the valve body 1. The pressure sensor interface 108 is connected to the water pump interface 109. The water pump interface 109 is provided with a water pump, which continuously provides power for the water flow in the heating system 200. The safety valve interface 102 is provided with a safety valve, and the pressure sensor interface 108 is provided with a pressure sensor. When the pressure in the heating system 200 is too high, the pressure sensor will issue an alarm by emitting light or sound, and the safety valve will simultaneously drain the excess water, restoring the pressure in the heating system 200 to a normal level.

[0062] Example 2

[0063] This embodiment provides a valve body 1 , the specific structure of which is substantially the same as that of the valve body 1 in the first embodiment, except that the water flow sensor 2 is located on the right side of the valve body 1 .

[0064] Figure 10 FIG. 1 shows a schematic structural diagram of the valve body 1 provided in this embodiment. Figure 10As shown, in this embodiment, the water flow sensor 2 is arranged on the same side of the water pump interface 109, that is, the water flow sensor 2 is arranged on the right side of the valve body 1, and the impeller 21 arranged in the water flow sensor 2 is installed in the impeller cavity 105, and the concave part of the impeller 21 blades faces forward to ensure that the water flow can impact the concave part of the impeller 21 blades after entering from the water inlet channel 104. It should be noted that at this time, the structure of the water pump connected to the water pump interface 109 also needs to be changed accordingly, for example, the front and rear dimensions of the water pump are reduced to prevent structural interference.

[0065] By adopting this setting method, the size of the entire valve body 1 in the left and right directions can be further reduced, and the space of the valve body 1 in all directions can be fully utilized to optimize the spatial layout of the entire system. When maintaining the wall-mounted boiler water system, when the water flow sensor 2 needs to be replaced, the water flow sensor 2 can be directly removed from the right side of the water inlet valve, which is convenient for installation and maintenance.

[0066] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A water inlet valve, characterized in that: include: A valve body (1), the valve body (1) being provided with a water inlet channel (104), a water flow sensor (2), and a first heat exchange interface (1011) for connecting to a heat exchange plate and for introducing water flow into the heat exchange plate, an impeller (21) being provided in the water flow sensor (2), an impeller cavity (105) being provided on a communication path between the water inlet channel (104) and the first heat exchange interface (1011), and the impeller (21) being assembled in the impeller cavity (105); The valve body (1) is further provided with a water supply valve (4) connected to the impeller chamber (105), with the extension direction of the water inlet channel (104) being a first direction, the water supply valve (4), the water flow sensor (2) and the first heat exchange interface (1011) being arranged around the impeller chamber (105) along the first direction, and the water supply valve (4) and the first heat exchange interface (1011) being arranged opposite to each other.

2. The water inlet valve according to claim 1, characterized in that: The axis of the water inlet channel (104) is offset from the central axis of the impeller (21), so that water flow can impact the blades of the impeller (21) through the water inlet channel (104).

3. The water inlet valve according to claim 1, characterized in that: The first heat exchange interface (1011) is arranged along a second direction, the second direction being perpendicular to the first direction, and the water supply valve (4) is connected to the water inlet channel (104) through the impeller chamber (105).

4. The water inlet valve according to claim 1, characterized in that: When the outer contour of the impeller (21) rotates one circle, a circular track with a radius of r is formed, and the central axis of the water inlet channel (104) is tangent to the concentric circle of the circular track.

5. The water inlet valve according to claim 1, characterized in that: One end of the water inlet channel (104) is in communication with the impeller chamber (105), and the other end is provided with a water inlet joint (3).

6. The water inlet valve according to claim 1, characterized in that: The valve body (1) is further provided with a safety valve interface (102), and the safety valve interface (102) is provided along the first direction at an end away from the water inlet channel (104).

7. The water inlet valve according to claim 1, characterized in that: The valve body (1) is further provided with a second heat exchange interface (1012), and the first heat exchange interface (1011) and the second heat exchange interface (1012) are arranged on the same plane.

8. The water inlet valve according to claim 7, characterized in that: The valve body (1) is provided with a water supply valve outlet channel (106) communicating with the water supply valve (4), and the water supply valve (4) is communicated with the second heat exchange interface (1012) via the water supply valve outlet channel (106).

9. The water inlet valve according to claim 8, characterized in that: The axial direction of the water outlet channel (106) of the water replenishment valve is inclined to the axial direction of the water inlet channel (104), and the inclination angle is 25° to 75°.

10. The water inlet valve according to claim 1, characterized in that: A pressure sensor interface (108) and a water pump interface (109) are also provided on the side of the valve body (1) near the safety valve interface (102), and the pressure sensor interface (108) is communicated with the water pump interface (109).

11. The water inlet valve according to claim 5, characterized in that: The offset distance L1 between the central axis of the water inlet channel (104) and the central axis of the water inlet joint (3) is such that 0.25 cm < L1 < 4 cm.

12. The water inlet valve according to claim 2, characterized in that: The offset distance between the axis of the water inlet channel (104) and the central axis of the impeller (21) is L2, wherein 2cm<L2<10cm.

Images