Valve body

Abstract

The utility model relates to the technical field of water valves, in particular to a valve body. The valve body comprises a water supplementing valve body and a water inlet valve body, a water inlet channel, a confluence channel and a water outlet channel which are sequentially communicated are arranged in the water inlet valve body, the water inlet channel and the confluence channel extend in the length direction of the water inlet valve body, and the water inlet channel is located above the confluence channel. The water replenishing valve body is installed on the water inlet valve body, a first water replenishing channel and a second water replenishing channel are arranged in the water replenishing valve body, and one end of the first water replenishing channel is selectively communicated with or separated from one end of the second water replenishing channel. The other end of the first water supplementing channel communicates with the water inlet channel, and the other end of the second water supplementing channel communicates with the confluence channel. The water inlet channel is located above the confluence channel, namely, the water inlet channel and the confluence channel are not located on the same straight line, so that the size of the water inlet valve body is reduced, the installation space needed by the valve body is reduced, and the valve body is convenient to install and use. And meanwhile, the water quantity adjustment of the valve body is realized.

Description

Technical Field

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

[0002] For existing valve bodies, such as those installed in the water circuit system of a wall-mounted boiler, it is necessary to adjust the size of the water supply flow. Therefore, in addition to an inlet channel and an outlet channel, a make-up water channel and a confluence channel are additionally provided in the valve body. When the water supply is normal, the make-up water channel remains closed, and water is supplied through the inlet channel and the outlet channel; when it is necessary to increase the water supply, the water in the inlet channel and the water in the make-up water channel converge at the confluence channel and then flow out through the outlet channel to meet the water use requirements of the water use end. The inlet channel and the confluence channel in the existing valve body are usually arranged along the same straight line, resulting in an overly large overall volume of the valve body, increasing the installation space required for the valve body, and being unfavorable for the installation and use of the valve body. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a valve body to achieve water volume adjustment of the valve body and reduce the volume and installation space of the valve body.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A valve body includes a make-up water valve body and an inlet valve body. An inlet channel, a confluence channel, and an outlet channel that are sequentially connected are arranged in the inlet valve body. The inlet channel and the confluence channel both extend along the length direction of the inlet valve body, and the inlet channel is located above the confluence channel.

[0006] The make-up water valve body is installed on the inlet valve body. A first make-up water channel and a second make-up water channel are arranged in the make-up water valve body. One end of the first make-up water channel is selectively communicated with or blocked from one end of the second make-up water channel; the other end of the first make-up water channel is communicated with the inlet channel, and the other end of the second make-up water channel is communicated with the confluence channel.

[0007] As an optional scheme of the valve body, one end of the inlet valve body along the length direction has an inlet joint and an openable and closable process hole. An inlet is opened in the inlet joint and is communicated with the inlet channel; the process hole is located below the inlet joint and is communicated with one end of the confluence channel.

[0008] As an optional scheme of the valve body, a plug is detachably plugged and installed in the process hole.

[0009] As an alternative embodiment of the valve body, the water inlet passage includes a main passage and a flow-limiting passage. One end of the main passage is respectively communicated with the flow-limiting passage and the first water replenishing passage. The end of the flow-limiting passage away from the main passage is communicated with the confluence passage. The cross-sectional area of the flow-limiting passage is smaller than the cross-sectional areas of the main passage and the confluence passage.

[0010] As an alternative embodiment of the valve body, a first communication cavity is provided at the connection between the main passage and the flow-limiting passage. The inner wall of the first communication cavity is smoothly connected to the inner walls of the main passage and the flow-limiting passage in a smooth transition manner; the first water replenishing passage is communicated with the first communication cavity.

[0011] As an alternative embodiment of the valve body, the cross-sectional area of the first communication cavity is larger than the cross-sectional area of the first water replenishing passage.

[0012] As an alternative embodiment of the valve body, a second communication cavity is further provided in the water inlet valve body. The inner wall of the second communication cavity is smoothly connected to the inner wall of the confluence passage; the end of the flow-limiting passage away from the main passage, the second water replenishing passage and the confluence passage are all communicated with the second communication cavity.

[0013] As an alternative embodiment of the valve body, the sum of the cross-sectional areas of the second water replenishing passage and the flow-limiting passage is less than or equal to the cross-sectional area of the second communication cavity.

[0014] As an alternative embodiment of the valve body, the valve body further includes an electromagnetic switch, which is installed between the first water replenishing passage and the second water replenishing passage to connect or disconnect the first water replenishing passage and the second water replenishing passage.

[0015] As an alternative embodiment of the valve body, a communicating pipe with an opening at the top is provided in the water replenishing valve body. A communicating channel is provided in the communicating pipe. A cavity is provided outside the communicating pipe. The first water replenishing passage is communicated with the cavity. The communicating channel is communicated with the second water replenishing passage. The cavity and the communicating channel are connected or disconnected through the electromagnetic switch.

[0016] The beneficial effects of the present utility model are as follows:

[0017] In the valve body proposed by the present utility model, the water inlet passage is located above the confluence passage, that is, the water inlet passage and the confluence passage are not on the same straight line, reducing the volume of the water inlet valve body, thereby reducing the installation space required for the valve body and facilitating the installation and use of the valve body. At the same time, when the first water replenishing passage and the second water replenishing passage are disconnected, small-flow water supply of the valve body is realized through the water inlet passage. When the first water replenishing passage and the second water replenishing passage are connected, the water supply amount to the confluence passage is increased through the second water replenishing passage to realize large-flow water supply of the valve body, thereby realizing the water volume adjustment of the valve body. Description of the Drawings

[0018] Figure 1 is a schematic structural view of the valve body provided by an embodiment of the present utility model;

[0019] Figure 2 is a schematic structural view of the valve body when supplying water with a small flow rate provided by an embodiment of the present utility model;

[0020] Figure 3 is a cross-sectional view of the water inlet valve body provided by an embodiment of the present utility model;

[0021] Figure 4 is a schematic structural view of the water inlet valve body provided by an embodiment of the present utility model;

[0022] Figure 5 is a schematic structural view of the valve body when supplying water with a large flow rate provided by an embodiment of the present utility model;

[0023] Figure 6 is a cross-sectional view of the elastic diaphragm provided by an embodiment of the present utility model;

[0024] Figure 7 is a cross-sectional view of the sealing seat provided by an embodiment of the present utility model.

[0025] The names and reference numerals of the components in the figure are as follows:

[0026] 1. Water replenishing valve body; 11. Water replenishing pipe; 111. First water replenishing channel; 112. Third water replenishing channel; 12. Water replenishing adjusting pipe; 120. Second water replenishing channel; 13. Connecting pipe; 131. Connecting channel; 132. Cavity; 2. Water replenishing switch; 3. Electromagnetic switch; 31. Electromagnetic valve; 311. Valve seat; 312. Valve core; 313. Spring; 32. Elastic diaphragm; 321. Mounting hole; 33. Sealing seat; 330. Card slot; 331. Seat body; 332. First column; 3320. Sealing hole; 333. Second column; 3330. Air inlet hole;

[0027] 4. Water inlet valve body; 40. Water inlet joint; 401. Water inlet; 41. Water inlet channel; 411. Main channel; 412. Flow limiting channel; 42. Confluence channel; 421. Process hole; 43. Plug; 44. First communication cavity; 45. Second communication cavity; 46. Water replenishing joint; 47. Water outlet joint; 5. Impeller assembly. Detailed Embodiments

[0028] To make the technical problems solved by the present utility model, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings rather than all of them.

[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0031] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0032] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

[0033] Such as Figure 1 and Figure 2As shown, in this embodiment, a valve body is proposed. The valve body can be an inlet valve installed in the water circuit system of a wall-mounted boiler or an inlet valve, a drain valve, etc. installed in other pipelines, and specific limitations are not made here. In this embodiment, the valve body is taken as an inlet valve for detailed description. The valve body includes an inlet valve body 4 and a water replenishing valve body 1 installed on the inlet valve body 4. An inlet channel 41, a confluence channel 42, and an outlet channel that are connected in sequence are arranged in the inlet valve body 4 to supply water to the external circulation water circuit of the wall-mounted boiler water circuit system, and at the same time, replenish water to the internal circulation water circuit of the wall-mounted boiler water circuit system through the water replenishing valve body 1.

[0034] In the existing valve body, the inlet channel 41 and the confluence channel 42 are usually arranged along the same straight line, resulting in an overly large overall volume of the valve body, increasing the installation space required for the valve body, and being unfavorable for the installation and use of the valve body.

[0035] To solve the above problems, as Figure 1 and Figure 2 shown, in the valve body of this embodiment, both the inlet channel 41 and the confluence channel 42 extend along the length direction (the left - right direction in the figure) of the inlet valve body 4, and the inlet channel 41 is located above the confluence channel 42. A first water replenishing channel 111 and a second water replenishing channel 120 are arranged in the water replenishing valve body 1. One end of the first water replenishing channel 111 is selectively connected or disconnected from one end of the second water replenishing channel 120. The other end of the first water replenishing channel 111 is connected to the inlet channel 41, and the other end of the second water replenishing channel 120 is connected to the confluence channel 42. Since the inlet channel 41 is located above the confluence channel 42, that is, the inlet channel 41 and the confluence channel 42 are not on the same straight line, the volume of the inlet valve body 4 is reduced, thereby reducing the installation space required for the valve body and facilitating the installation and use of the valve body. At the same time, when the first water replenishing channel 111 is disconnected from the second water replenishing channel 120, small - flow water supply of the valve body is realized through the inlet channel 41. When the first water replenishing channel 111 is connected to the second water replenishing channel 120, the water supply volume to the confluence channel 42 is increased through the second water replenishing channel 120 to realize large - flow water supply of the valve body, thereby realizing the water volume adjustment of the valve body.

[0036] As Figure 2 and Figure 3 shown, one end of the inlet valve body 4 along the length direction has an inlet joint 40 and an openable and closable process hole 421. An inlet port 401 communicating with the inlet channel 41 is opened in the inlet joint 40. The process hole 421 is located below the inlet joint 40 and is connected to one end of the confluence channel 42. Since the inlet joint 40 and the process hole 421 are located on the same side of the inlet valve body 4, that is, the right side of the inlet valve body 4, the inlet channel 41 and the confluence channel 42 have the same machining direction, that is, machining is carried out from right to left, without the need to change the clamping position and clamping direction of the inlet valve body 4, reducing the machining difficulty and machining cost of the inlet valve body 4 and improving the machining efficiency.

[0037] Specifically, a plug 43 is detachably sealed and installed in the process hole 421. After the water inlet valve body 4 is processed, the process hole 421 is closed by the plug 43 to ensure the sealing performance of the water inlet valve body 4. In this embodiment, the plug 43 is threadedly connected to the process hole 421 to achieve the detachable installation of the plug 43. Of course, the plug 43 can also be inserted and matched with the process hole 421.

[0038] As Figure 2 and Figure 3 shown, the water inlet passage 41 includes a main passage 411 and a flow limiting passage 412. One end of the main passage 411 is respectively communicated with the flow limiting passage 412 and the first water replenishing passage 111. The end of the flow limiting passage 412 far from the main passage 411 is communicated with the confluence passage 42. The cross-sectional area of the flow limiting passage 412 is smaller than the cross-sectional areas of the main passage 411 and the confluence passage 42. By providing the flow limiting passage 412 with the smallest cross-sectional area in the water inlet valve body 4, the maximum water inlet flow rate of the valve body is limited, so as to achieve the small-flow water supply of the valve body. At the same time, there is no need to install a flow limiting ring in the valve body, which simplifies the structure of the valve body and reduces the cost. When the water consumption is small, the valve body switches to small-flow water supply, so that the wall-mounted boiler can quickly heat the small-flow water flow to the rated temperature. When the water consumption is large, the first water replenishing passage 111 is communicated with the second water replenishing passage 120 to increase the water volume in the confluence passage 42 and achieve the large-flow water supply of the valve body.

[0039] As Figure 2 and Figure 3 shown, a first communication cavity 44 is provided at the connection of the main passage 411 and the flow limiting passage 412. The inner wall of the first communication cavity 44 is smoothly and transitionally connected to the inner wall of the main passage 411 and the inner wall of the flow limiting passage 412. The first water replenishing passage 111 is communicated with the first communication cavity 44. By providing the first communication cavity 44, the flow resistance of the water flow in the water inlet passage 41 flowing into the first water replenishing passage 111 is reduced, and the flow velocity of the water flow in the first water replenishing passage 111 is increased.

[0040] Furthermore, the cross-sectional area of the first communication cavity 44 is larger than the cross-sectional area of the first water replenishing passage 111 to ensure a sufficient amount of water flow is supplied to the first water replenishing passage 111.

[0041] As Figure 2 and Figure 3As shown, a second communication cavity 45 is further provided in the water inlet valve body 4, and the inner wall of the second communication cavity 45 is smoothly and transitionally connected to the inner wall of the confluence channel 42. One end of the flow limiting channel 412 far from the main channel 411, the second water replenishing channel 120 and the confluence channel 42 are all communicated with the second communication cavity 45. By providing the second communication cavity 45, the water flow in the flow limiting channel 412 and the water flow in the second water replenishing channel 120 converge in the second communication cavity 45 and then flow into the confluence channel 42, reducing the flow resistance of the water flow flowing into the confluence channel 42 and increasing the flow velocity of the water flow in the confluence channel 42.

[0042] Furthermore, the sum of the cross-sectional areas of the second water replenishing channel 120 and the flow limiting channel 412 is less than or equal to the cross-sectional area of the second communication cavity 45, so that the second water replenishing channel 120 has a larger volume to ensure that the water flow in the flow limiting channel 412 and the water flow in the second water replenishing channel 120 converge in the second communication cavity 45, avoiding blockage in the second water replenishing channel 120 and resulting in a decrease in the water flow velocity.

[0043] As Figures 2 to 4 shown, the water inlet valve body 4 further has a water outlet joint 47 and a water replenishing joint 46. A water outlet communicated with the water outlet channel is provided in the water outlet joint 47, and a water replenishing port communicated with the third water replenishing channel 112 is provided in the water replenishing joint 46. The water replenishing valve body 1 includes a water replenishing pipe 11 and a water replenishing adjusting pipe 12. A first water replenishing channel 111 and a third water replenishing channel 112 are provided in the water replenishing pipe 11, and a second water replenishing channel 120 is provided in the water replenishing adjusting pipe 12. When the water replenishing valve body 1 is installed on the water inlet valve body 4, one end of the first water replenishing channel 111 is communicated with the water inlet channel 41, and the third water replenishing channel 112 is communicated with the water replenishing port. Specifically, a water replenishing switch 2 is further installed on the water replenishing valve body 1. The water replenishing switch 2 includes a valve rod and a handwheel. One end of the valve rod extends into the interior of the water replenishing valve body 1, and the other end of the valve rod is connected to the handwheel. By screwing the handwheel to drive the valve rod to move, the valve rod is used to connect or isolate the first water replenishing channel 111 and the third water replenishing channel 112. When the internal circulation water path of the wall-mounted boiler water path is short of water, by manually screwing the handwheel to open the water replenishing switch 2, the first water replenishing channel 111 and the third water replenishing channel 112 are communicated, and a part of the water flow in the main channel 411 sequentially passes through the first water replenishing channel 111 and the third water replenishing channel 112, and finally flows from the water replenishing port to the internal circulation water path. Since the water replenishing switch 2 is a prior art, the specific structure and working process of the water replenishing switch 2 will not be elaborated further.

[0044] As Figure 2 and Figure 3As shown, an impeller assembly 5 is provided between the confluence channel 42 and the water outlet channel. The impeller assembly 5 is installed in the water inlet valve body 4 to drive the water flow in the water inlet valve body 4 to flow in the direction shown by the arrow in the figure towards the water outlet channel. The water outlet channel of this embodiment extends in the up and down direction in the figure and is perpendicular to the confluence channel 42. The blades of the impeller assembly 5 extend into the intersection of the confluence channel 42 and the water outlet channel, so that the water flow in the confluence channel 42 flushes the blades and flows into the water outlet channel.

[0045] As Figure 2 and Figure 5 shown, the valve body further includes an electromagnetic switch 3. The electromagnetic switch 3 is installed between the first water replenishing channel 111 and the second water replenishing channel 120 to connect or disconnect the first water replenishing channel 111 and the second water replenishing channel 120. The electromagnetic switch 3 can realize the opening and closing of the second water replenishing channel 120 according to the change of water use demand, thereby realizing the switching of large and small water volumes of the valve body.

[0046] Specifically, a communicating pipe 13 with an opening at the top is provided in the water replenishing valve body 1. A communicating channel 131 is provided in the communicating pipe 13, and a cavity 132 is provided outside the communicating pipe 13. The first water replenishing channel 111 is communicated with the cavity 132, the communicating channel 131 is communicated with the second water replenishing channel 120, and the cavity 132 and the communicating channel 131 are connected or disconnected through the electromagnetic switch 3. When the electromagnetic switch 3 is closed, the cavity 132 and the communicating channel 131 are disconnected, and the water inlet valve supplies water with a small flow rate; when the electromagnetic switch 3 is opened, the first water replenishing channel 111, the cavity 132, the communicating channel 131 and the second water replenishing channel 120 are sequentially communicated, so that a part of the water flow in the main channel 411 flows towards the confluence channel 42, and another part of the water flow enters the confluence channel 42 after passing through the first water replenishing channel 111, the cavity 132, the communicating channel 131 and the second water replenishing channel 120, so as to increase the water volume in the confluence channel 42 and realize large-flow water supply.

[0047] The electromagnetic switch 3 of this embodiment includes an electromagnetic valve 31 and a sealing assembly. The electromagnetic valve 31 includes a valve seat 311 and a valve core 312. The valve seat 311 is installed on the water replenishing valve body 1. The sealing assembly is arranged in the water replenishing valve body 1. When the electromagnetic valve 31 is powered off, the valve core 312 presses against the sealing assembly to block the opening of the communicating pipe 13; when the electromagnetic valve 31 is powered on, the valve core 312 is separated from the sealing assembly. By controlling the opening and closing of the communicating pipe 13 through the electromagnetic valve 31, that is, controlling the connection and isolation of the cavity 132 and the communicating channel 131, to control the connection and isolation of the first water replenishing channel 111 and the second water replenishing channel 120, the switching of large and small flow water supply of the valve body is realized.

[0048] Specifically, the solenoid valve 31 includes a valve seat 311, a valve core 312 (usually a moving iron core), and a spring 313. The valve seat 311 is sealingly installed on the water replenishing valve body 1. The valve core 312 and the spring 313 are both installed inside the valve seat 311. An electromagnetic coil is provided inside the valve seat 311. When the solenoid valve 31 is energized, the valve core 312 retracts into the valve seat 311 and compresses the spring 313. After the solenoid valve 31 is de-energized, the spring 313 resets and pushes the end of the valve core 312 out of the valve seat 311.

[0049] As Figure 2 and Figure 5 shown, the sealing assembly includes an elastic diaphragm 32 and a sealing seat 33. The circumferential edge of the elastic diaphragm 32 is disposed on the inner sidewall of the cavity 132. The sealing seat 33 is installed on the elastic diaphragm 32. When the solenoid valve 31 is de-energized, the valve core 312 presses against the sealing seat 33 to drive the elastic diaphragm 32 to block the opening of the communication pipe 13. When the solenoid valve 31 is energized, the valve core 312 is disengaged from pressing against the sealing seat 33, and the elastic diaphragm 32 is disengaged from pressing against the opening of the communication pipe 13. Specifically, the elastic diaphragm 32 is a rubber cup. The circumferential edge of the elastic diaphragm 32 is installed on the inner sidewall of the cavity 132 to achieve the sealing installation of the elastic diaphragm 32. At the same time, the elastic diaphragm 32 has good elastic deformation ability to move up and down along the vertical direction in the figure with the sealing seat 33, so that the elastic diaphragm 32 opens or blocks the opening at the top of the communication pipe 13 to control the communication and isolation between the cavity 132 and the communication channel 131.

[0050] Specifically, as Figure 6 and Figure 7 shown, the sealing seat 33 includes a seat body 331 and a gas guiding column disposed at the bottom end of the seat body 331. The elastic diaphragm 32 is provided with a mounting hole 321, and the gas guiding column passes through and is fixed in the mounting hole 321. Three mounting holes 321 are provided on the elastic diaphragm 32, so that the number of gas guiding columns is the same as that of the mounting holes 321 and they pass through the three mounting holes 321 one by one, so that the sealing seat 33 and the elastic diaphragm 32 are assembled together to ensure the synchronous lifting movement of the sealing seat 33 and the elastic diaphragm 32.

[0051] Further, the gas guiding column includes a first column 332 and a second column 333. The first column 332 and the second column 333 respectively form a slot 330 for accommodating the elastic diaphragm 32 with the seat body 331. A first column 332 is provided at the center of the seat body 331, and there are two second columns 333, and the two second columns 333 are arranged at intervals along the circumference of the seat body 331. When the elastic diaphragm 32 is accommodated in the slot 330 of the first column 332 and the second column 333, the reliable assembly of the elastic diaphragm 32 and the sealing seat 33 is realized, and at the same time, the good sealing performance between the elastic diaphragm 32 and the sealing seat 33 is ensured.

[0052] As Figure 2As shown in the figure, the sealing seat 33 is provided with a sealing hole 3320 penetrating through the seat body 331 and the first column 332, and the sealing seat 33 is also provided with an air inlet hole 3330 penetrating through the seat body 331 and the second column 333, so that the first water replenishing channel 111, the air inlet hole 3330 and the cavity 132 are communicated in sequence. When the electromagnetic valve 31 is powered off, the first column 332 extends into the communication channel 131, the second column 333 extends into the cavity 132, and the valve core 312 presses against the seat body 331 to block the sealing hole 3320. Specifically, when the electromagnetic valve 31 is powered off, the valve core 312 moves downward under the action of the spring 313 to push the sealing seat 33 and the elastic diaphragm 32 to move downward until the elastic diaphragm 32 presses against the seat body 331 of the sealing seat 33, and the valve core 312 blocks the sealing hole 3320. The water flow in the main channel 411 enters the first water replenishing channel 111. At this time, a closed space is formed in the cavity 132 (that is, the water flow will not enter the cavity 132), and closed spaces also exist in the second water replenishing channel 120 and the communication channel 131. At this time, the pressure above the elastic diaphragm 32 is greater than the pressure below the elastic diaphragm 32, so a negative pressure environment is formed in the communication channel 131 to tightly adsorb the elastic diaphragm 32 at the opening at the top of the communication pipe 13 to ensure reliable blocking of the communication pipe 13, so that the first water replenishing channel 111 is isolated from the second water replenishing channel 120, realizing small-flow water supply of the valve body.

[0053] As Figure 5 shown in the figure, when the electromagnetic valve 31 is powered on, the valve core 312 squeezes the spring 313 and retracts into the valve seat 311. The valve core 312 is separated from pressing against the seat body 331 of the sealing seat 33, and the sealing hole 3320 is opened. At this time, the first water replenishing channel 111, the cavity 132, the communication channel 131 and the second water replenishing channel 120 are communicated in sequence. At this time, the pressure above the elastic diaphragm 32 is equal to the pressure below the elastic diaphragm 32. Under the push of the water flow in the first water replenishing channel 111, the sealing seat 33 and the elastic diaphragm 32 move upward. The elastic diaphragm 32 is separated from pressing against the communication pipe 13 to open the opening at the top end of the communication pipe 13, so that the first water replenishing channel 111 is communicated with the second water replenishing channel 120. At this time, a part of the water flow in the main channel 411 flows to the confluence channel 42, and another part of the water flow enters the confluence channel 42 after passing through the first water replenishing channel 111, the cavity 132, the communication channel 131 and the second water replenishing channel 120 to increase the water volume in the confluence channel 42, realizing large-flow water supply of the valve body.

[0054] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and alterations to the present invention, and these changes and alterations all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve body, characterized in that, It includes a water replenishing valve body (1) and a water inlet valve body (4). A water inlet channel (41), a confluence channel (42) and a water outlet channel are successively arranged in the water inlet valve body (4). The water inlet channel (41) and the confluence channel (42) both extend along the length direction of the water inlet valve body (4), and the water inlet channel (41) is located above the confluence channel (42). The water replenishing valve body (1) is installed on the water inlet valve body (4). A first water replenishing channel (111) and a second water replenishing channel (120) are arranged in the water replenishing valve body (1). One end of the first water replenishing channel (111) is selectively communicated with or partitioned from one end of the second water replenishing channel (120); the other end of the first water replenishing channel (111) is communicated with the water inlet channel (41), and the other end of the second water replenishing channel (120) is communicated with the confluence channel (42).

2. The valve body according to claim 1, characterized in that, One end of the water inlet valve body (4) along the length direction has a water inlet joint (40) and an openable and closable process hole (421). A water inlet (401) communicated with the water inlet channel (41) is arranged in the water inlet joint (40); the process hole (421) is located below the water inlet joint (40) and is communicated with one end of the confluence channel (42).

3. The valve body according to claim 2, characterized in that, A plug (43) is detachably plugged and installed in the process hole (421).

4. The valve body according to claim 1, wherein The water inlet channel (41) includes a main channel (411) and a current limiting channel (412). One end of the main channel (411) is respectively communicated with the current limiting channel (412) and the first water replenishing channel (111). The end of the current limiting channel (412) far from the main channel (411) is communicated with the confluence channel (42). The cross-sectional area of the current limiting channel (412) is smaller than the cross-sectional areas of the main channel (411) and the confluence channel (42).

5. The valve body according to claim 4, characterized in that A first communication cavity (44) is arranged at the connection of the main channel (411) and the current limiting channel (412). The inner wall of the first communication cavity (44) is smoothly and transitionally connected with the inner wall of the main channel (411) and the inner wall of the current limiting channel (412); the first water replenishing channel (111) is communicated with the first communication cavity (44).

6. The valve body according to claim 5, characterized in that, The cross-sectional area of the first communication cavity (44) is larger than the cross-sectional area of the first water replenishing channel (111).

7. The valve body according to claim 4, characterized in that, A second communication cavity (45) is further arranged in the water inlet valve body (4). The inner wall of the second communication cavity (45) is smoothly and transitionally connected with the inner wall of the confluence channel (42); the end of the current limiting channel (412) far from the main channel (411), the second water replenishing channel (120) and the confluence channel (42) are all communicated with the second communication cavity (45).

8. The valve body according to claim 7, characterized in that, The sum of the cross-sectional areas of the second water replenishing channel (120) and the current limiting channel (412) is smaller than or equal to the cross-sectional area of the second communication cavity (45).

9. The valve body according to any one of claims 1 to 8, characterized in that, The valve body further includes an electromagnetic switch (3), and the electromagnetic switch (3) is installed between the first water replenishing channel (111) and the second water replenishing channel (120) to connect or cut off the first water replenishing channel (111) and the second water replenishing channel (120).

10. The valve body according to claim 9, characterized in that, A communicating pipe (13) with an opening at the top is arranged in the water replenishing valve body (1). A communicating channel (131) is arranged in the communicating pipe (13). A cavity (132) is arranged outside the communicating pipe (13). The first water replenishing channel (111) is communicated with the cavity (132). The communicating channel (131) is communicated with the second water replenishing channel (120). The cavity (132) and the communicating channel (131) are connected or cut off through the electromagnetic switch (3).

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