A multi-waterway rotary control valve for controlling water output from a pump

Abstract

A multi-waterway rotary control valve for controlling water discharge from a pump comprises a valve body, a switching mechanism and a waterway mechanism; a plurality of valve core seats arranged at circumferential intervals are provided on the top of the waterway mechanism, a plurality of waterway channels are provided at the bottom of the waterway mechanism and are connected to at least one valve core seat; the switching mechanism comprises a rotating member, a switching disk, a plurality of valve cores and a plurality of magnetic brackets; the switching disk is installed in an installation cavity, and the valve core is installed on the switching disk for movably opening and closing the waterway channel where the corresponding valve core seat is located; the switching disk is slidably connected to the magnetic brackets radially outward of each installation hole; the rotating member is rotatably installed above the switching disk, and a switching ring with an inner protrusion and an inner recess is provided at the bottom of the rotating member, and the rotation of the switching ring drives the corresponding magnetic bracket to move radially inward or outward along the switching disk to move the magnetic core of the valve core to open and close the waterway channel; the magnetic brackets are driven to move through the purely mechanical structure of the switching ring, and then the magnetic core moves, without the need for power supply, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of control valves, in particular to a multi-waterway rotary control valve for controlling water output from a pump. Background Art

[0002] Control valves are often used to control the flow of fluid in pipelines. Multi-way valves are a one-valve-multiple-purpose structure. One valve can replace multiple valves, connect multiple pipelines, and achieve multiple inlets and outlets.

[0003] In RVs, it is often necessary to use a water pump to draw water from a water tank and pump it to water heaters, shower faucets and other water-using equipment for use, or to use a water pump to discharge waste water from the water tank. In order to save space in the RV and reduce the layout of pipes, it is usually necessary to use a multi-way valve to connect the water pump to reuse the water outlet pipe of the water pump so that the water outlet pipe can be connected to water heaters, sewage outlets or shower faucets and other water-using equipment according to the switching of the multi-way valve.

[0004] Moreover, since the water tank capacity in the RV is limited, when the water tank is empty, it is necessary to pump water from the municipal water supply to the water tank. At this time, a multi-way valve is also needed to allow the water inlet pipe of the water pump to be connected to the water tank or municipal water, and the water outlet pipe of the water pump can be connected to the water tank according to the switching of the multi-way valve.

[0005] However, common multi-way valves usually have multiple interfaces, and different ball valves are used to control the conduction between each interface. When multiple water circuits need to be switched, multiple different ball valves need to be rotated, which makes the use and control more troublesome. Therefore, some existing multi-way valves use an electric control system composed of solenoid valves to achieve convenient water circuit switching, but the electric control system needs power supply, and requires multiple solenoid valves, multiple coils and control circuit boards, which is costly. Summary of the invention

[0006] The object of the present invention is to provide a multi-waterway rotary control valve for controlling water discharge from a pump, which has the advantages of convenient waterway switching and low use and manufacturing costs.

[0007] In order to achieve the above object, the solution of the present invention is:

[0008] A multi-waterway rotary control valve for controlling water discharge from a pump, comprising a valve body, a switching mechanism and a waterway mechanism;

[0009] The water channel mechanism is installed below the valve body, and the switching mechanism is installed between the valve body and the water channel mechanism;

[0010] The water channel mechanism is provided with an installation cavity at the top, and a plurality of valve core seats are arranged at intervals in the circumferential direction in the installation cavity. The water channel mechanism is provided with a plurality of water channel channels at the bottom, each of which has at least one inlet and one outlet, and each of which is connected to at least one valve core seat.

[0011] The switching mechanism includes a rotating part, a switching disk, a plurality of valve cores and a plurality of magnetic brackets;

[0012] The switching disk is installed in the installation cavity, and a plurality of mounting holes are provided on the switching disk corresponding to each valve core seat, and the valve cores are respectively installed in the mounting holes, and the valve cores are used to movably open and close the water channel where the corresponding valve core seat is located; the switching disk is slidably connected to the magnetic brackets on the radial outer side of each mounting hole; a magnetic member is provided on the radial inner side of the magnetic bracket; a magnetic core that can move up and down is provided in the valve core, and when the magnetic member approaches the valve core, the magnetic core is attracted to move and open the valve core seat, and when the magnetic member is away from the valve core, the magnetic core is reset to block the valve core seat;

[0013] The rotating member is rotatably installed above the switching disk, and a switching ring is provided at the bottom of the rotating member; each of the magnetic brackets is provided with a circumferentially penetrating slot; the switching ring is inserted into the slot of each magnetic bracket, and a plurality of inner protrusions are provided on the inner side of the switching ring, and each inner protrusion is distributed at intervals in the circumference, and there is an inner recess between adjacent inner protrusions; the rotation of the rotating member drives the switching ring to rotate through the slots of each magnetic bracket, and the radial inner side of the slot is provided with an inner block, and when the inner block abuts against the inner protrusion of the switching ring, it drives the corresponding magnetic bracket to move radially inward along the switching disk to a first position close to the valve core, and when the inner block abuts against the inner recess, it drives the corresponding magnetic bracket to move radially outward along the switching disk to a second position away from the valve core;

[0014] The arc lengths of the inner protrusions and the inner depressions are set according to actual conduction requirements of the water channels.

[0015] Furthermore, a through hole is provided on the top of the valve body, and a plurality of indication areas are respectively provided on the periphery of the through hole; a control knob extending out of the through hole is provided on the top of the rotating member, and when the control knob is rotated and points to different indication areas, different magnetic brackets are driven to move to open the set water channel.

[0016] Furthermore, the switching disk has a mounting column in the middle, and a plurality of positioning recessed holes are provided on the top of the mounting column, and each positioning recessed hole is equidistantly distributed circumferentially and corresponds to each valve core seat; the rotating member is rotatably mounted on the top of the mounting column, the switching ring is located on the periphery of the mounting column, the control knob is located above the mounting column, and a positioning marble is provided on the bottom of the control knob, and the positioning marble and the positioning recessed hole cooperate with each other for positioning.

[0017] Furthermore, an outer protrusion protruding outward is provided between adjacent inner protrusions of the switching ring, and an outer recess is provided between adjacent outer protrusions; the card slot is arranged in the middle part of the magnetic suction bracket, and an outer card block is provided on the radial outside of the card slot, and the outer card block is used to abut against the outer protrusion and the outer recess.

[0018] Furthermore, the inner recess and the inner convex block of the switching ring are connected by an inclined surface, and the outer recess and the outer convex block are also connected by an inclined surface; the circumferential sides of the inner block and the outer block of the magnetic bracket are guide inclined surfaces respectively.

[0019] Furthermore, a baffle is provided on the outside of the mounting hole of the switching disk, and a radially outwardly extending guide column is provided on the outside of the baffle; the magnetic bracket is slidably sleeved on the guide column.

[0020] Furthermore, a first elastic member is provided between the magnetic bracket and the baffle.

[0021] Furthermore, the valve core includes a diaphragm rubber part, a diaphragm plate, the magnetic core, a second elastic part and a sleeve; the sleeve is installed in the mounting hole of the switching disk and extends upward from the switching disk; the interior of the sleeve is hollow and a cover body is provided at the bottom, the diaphragm rubber part is connected to the bottom of the cover body and cooperates with the valve core seat; the magnetic core is movably arranged in the inner cavity of the sleeve, the second elastic part is arranged between the upper end of the magnetic core and the top end of the inner cavity of the sleeve, and the movable area of ​​the upper end of the magnetic core is located on the radial side of the magnetic bracket; the lower end of the magnetic core acts on the diaphragm rubber part through the diaphragm plate to movably open and close the valve core seat.

[0022] Furthermore, a water outlet pipe and a water inlet pipe are provided in the valve core seat, and the water outlet pipe and the water inlet pipe are interconnected to form the water channel; the diaphragm rubber part of the valve core is used to movably open and close the water outlet pipe.

[0023] Furthermore, the diaphragm plate is located in the pilot cavity formed between the cover body and the diaphragm rubber piece, and a third elastic piece is provided above the diaphragm plate and between the cover body; the middle convex portion of the diaphragm plate penetrates the diaphragm rubber piece and has a pilot hole connecting the pilot cavity and the water outlet pipe, and the outer periphery of the diaphragm rubber piece has a connecting hole connecting the pilot cavity and the water inlet pipe; an end cap is provided at the bottom of the magnetic core for movably sealing the pilot hole.

[0024] After adopting the above technical solution, by rotating the rotating part at a certain angle, the switching ring follows the rotation, and the positions of the inner protrusion and the inner recess change accordingly, so that part of the magnetic bracket can be driven to switch between the first position and the second position according to the arc length of the inner protrusion and the inner recess, thereby controlling the movement of a specific valve core to achieve the blocking or opening of the corresponding valve core seat, and the remaining magnetic brackets can maintain the state unchanged or change synchronously, and finally achieve the purpose of switching different water channels for conduction as needed, and can achieve the effect of multiple inlets and multiple outlets, and can achieve multiple inlets and multiple outlets of the pump connected thereto. And through the pure mechanical structure of the switching ring, each magnetic bracket is driven to move, and then the magnetic core is moved, without the need for power supply, the use cost is low, and the manufacturing cost of the product is also low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front view of an embodiment of the present invention;

[0026] Figure 2 A rear view of an embodiment of the present invention;

[0027] Figure 3 is a three-dimensional diagram of an embodiment of the present invention (I);

[0028] Figure 4 is a three-dimensional diagram of an embodiment of the present invention (II);

[0029] Figure 5 is an exploded view of an embodiment of the present invention;

[0030] Figure 6 A three-dimensional diagram of a rotating member according to an embodiment of the present invention;

[0031] Figure 7 is a cross-sectional view of an embodiment of the present invention;

[0032] Figure 8 for Figure 7 Stereoscopic view of

[0033] Fig. 9 for Figure 7 Sectional view at AA;

[0034] Fig.10 for Fig. 9 Stereoscopic view of

[0035] Fig.11 A schematic diagram of the structure of a valve core according to an embodiment of the present invention;

[0036] Fig.12 It is a schematic diagram of the cooperation between the rotating member and the magnetic bracket after rotation according to an embodiment of the present invention.

[0037] Description of reference numerals: valve body 1, through hole 11, indication area 12;

[0038] Switching mechanism 2, rotating member 21, switching disk 22, mounting hole 221, baffle 222, guide column 223, first elastic member 224; valve core 23, diaphragm rubber member 231, connecting hole 2311, diaphragm plate 232, pilot hole 2321, magnetic core 233, second elastic member 234, sleeve 235, cover body 236, pilot cavity 237, third elastic member 238, end cap 239; magnetic bracket 24, magnetic member 241, mounting slot 242, card slot 243, inner card block 244, outer card block 245, guide inclined surface 246; switching ring 25, inner convex block 251, inner recess 252, outer convex block 253, outer recess 254, inclined surface 255, control knob 26, positioning marble 261, mounting column 27, positioning recess 271;

[0039] Water channel mechanism 3, installation cavity 31, valve core seat 32, water outlet pipe 321, water inlet pipe 322, water channel 33, inlet 331, outlet 332, lower joint 34, branch pipe 35. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] like Figures 1 to 11 As shown, a multi-waterway rotary control valve for controlling water discharge from a pump according to this embodiment includes a valve body 1 , a switching mechanism 2 and a waterway mechanism 3 .

[0042] like Figure 5 As shown, the water channel mechanism 3 is installed below the valve body 1 , and the switching mechanism 2 is installed between the valve body 1 and the water channel mechanism 3 .

[0043] The water channel mechanism 3 has an installation cavity 31 at the top, and a plurality of valve core seats 32 are arranged at circumferential intervals in the installation cavity 31. In the present embodiment, the installation cavity 31 is a circular chamber, and has 7 valve core seats 32 arranged at circumferentially equal intervals therein. Of course, the number of valve core seats 32 is not limited thereto.

[0044] like Figure 2 and Figure 4, the bottom of the waterway mechanism 3 may be provided with a plurality of waterway channels 33, each of which has at least one inlet 331 and one outlet 332, and each of which is connected to at least one valve core seat 32; in this embodiment, a lower joint 34 is provided directly below each valve core seat 32, and the bottom of the lower joint 34 has an opening, and the side of each lower joint 34 can be connected with a branch pipe 35 of different styles, and the branch pipe 35 can have one to multiple openings, and different lower joints 34 can be connected through the same branch pipe 35, so that the bottom of the waterway mechanism 3 can have a plurality of waterway channels 33 composed of lower joints 34 and different branch pipes 35, and the openings of the lower joint 34 and the branch pipe 35 can both be used as the inlet 331 or outlet 332 of the water flow channel, which can be selected according to actual needs.

[0045] like Figure 5 and Figure 6 The switching mechanism 2 includes a rotating member 21, a switching disk 22, a plurality of valve cores 23 and a plurality of magnetic brackets 24; in this embodiment, the number of valve cores 23 is set to 7 corresponding to the number of valve core seats 32, and the number of magnetic brackets 24 corresponding to the number of valve cores 23 is also set to 7.

[0046] See also Figures 7 to 10 The switching disk 22 is installed in the installation cavity 31. The switching disk 22 is provided with a plurality of installation holes 221 corresponding to each valve core seat 32. The valve cores 23 are respectively installed in the installation holes 221. The valve cores 23 are used to movably open and close the water channel 33 where the corresponding valve core seats 32 are located.

[0047] The switching disk 22 is slidably connected to the magnetic bracket 24 on the radial outer side of each mounting hole 221; a magnetic member 241 is provided on the radial inner side of the magnetic bracket 24; a magnetic core 233 capable of moving up and down is provided in the valve core 23, and when the magnetic member 241 approaches the valve core 23, it attracts the magnetic core 233 to move and open the valve core seat 32, and when the magnetic member 241 is away from the valve core 23, the magnetic core 233 returns to its original position and blocks the valve core seat 32. In this embodiment, the magnetic member 241 can be a magnet, and the magnetic core 233 can be an iron core, but it is not limited thereto. The inner end of the magnetic bracket 24 can be provided with a mounting slot 242, and the magnetic member 241 is installed in the mounting slot 242.

[0048] The rotating member 21 is rotatably mounted above the switching disk 22, and a switching ring 25 is provided at the bottom of the rotating member 21; each of the magnetic brackets 24 is provided with a circumferentially penetrating slot 243; the switching ring 25 is inserted into the slot 243 of each magnetic bracket 24, and a plurality of inner protrusions 251 are provided on the inner side of the switching ring 25, each inner protrusion 251 is circumferentially spaced, and an inner recess 252 is provided between adjacent inner protrusions 251; the rotating member 21 rotates to drive the switching ring 25 to rotate through the slot 243 of each magnetic bracket 24, The radial inner side of the slot 243 is provided with an inner block 244, and when the inner block 244 abuts against the inner protrusion 251 of the switching ring 25, it drives the corresponding magnetic bracket 24 to move radially inward along the switching disk 22 to a first position close to the valve core 23; when the inner block 244 abuts against the inner recess 252, it drives the corresponding magnetic bracket 24 to move radially outward along the switching disk 22 to a second position away from the valve core 23; the arc lengths of each inner protrusion 251 and each inner recess 252 are set according to the actual conduction requirements of each water channel 33.

[0049] Therefore, by rotating the rotating part 21 by a certain angle, the switching ring 25 follows the rotation, and the positions of the inner protrusion 251 and the inner recess 252 change accordingly, and part of the magnetic bracket 24 can be driven to switch between the first position and the second position according to the arc length of the inner protrusion 251 and the inner recess 252. Therefore, controlling the movement of a specific valve core 23 can achieve the blocking or opening of the corresponding valve core seat 32, and the remaining magnetic brackets 24 can maintain the state unchanged or change synchronously, and finally the purpose of switching different water channels 33 for conduction as needed can be achieved, and the effect of multiple in and multiple out can be achieved.

[0050] In this embodiment, the initial state is as follows: Figure 7 As shown in the figure, the valve core seats 32 of the 2nd, 4th, 6th and 7th are in the conducting state, that is, the lower joint 34 opening under the corresponding valve core seat 32 and the corresponding water channel 33 are in the connecting state; and when the rotating member 21 drives the switching ring 25 to rotate 360 / 7 about 51.43 degrees, as shown in the figure, Fig.12 The valve core seats 32 of the first, third, fifth and seventh valve core seats 32 are turned into the conducting state, at which time, the lower joints 34 openings below the valve core seats 32 of the first, third, fifth and seventh valve core seats 32 and the corresponding water channels 33 are turned into the communicating state. Therefore, by rotating the rotating member 21 at different angles, the structure of the switching ring 25 of this embodiment can realize that four valve core seats 32 are turned on and three valve core seats 32 are closed each time the rotating member 21 is rotated, and then the water channel mechanisms 3 of the water channel mechanisms 3 are connected with the water pump, water supply and water use equipment, so as to realize various water inlet and outlet controls of the water pump.

[0051] The multi-channel rotary control valve of this embodiment can be mainly used in RVs. The inlet 331 and the outlet 332 of each lower joint 34 or branch pipe 35 of the water channel mechanism 3 can be respectively connected to water pumps, water tanks, water heaters, shower faucets and other water-using equipment on the RV and municipal water supply waterways, etc., and then the water channel 33 can be switched by the switching mechanism 2 as needed. How the water channel mechanism 3 of the multi-way valve is connected to the water pump and other equipment can be set with reference to the existing design and customer needs. This part does not belong to the improvement of this case and will not be repeated.

[0052] The present invention mainly drives the movement of each magnetic bracket 24 through the purely mechanical structure of the switching ring 25, and then the magnetic core 233 moves. No power supply is required, the use cost is low, and the manufacturing cost of the product is also low. It only needs to design the switching ring 25 specifically according to customer needs.

[0053] like Figure 1 In order to facilitate the identification of the conduction state of the water channel 33 when the rotating member 21 rotates, an indication area may be provided on the valve body 1. Figure 5 The top of the valve body 1 may be provided with a through hole 11, and the outer periphery of the through hole 11 may be provided with a plurality of indication areas 12; in the present embodiment, 7 indication areas 12 may be provided, and of course, other numbers of indication areas 12 may also be provided, and it is only necessary to adjust the arc lengths of the inner convex part and the inner concave part on the switching ring 25 accordingly.

[0054] Correspondingly, the top of the rotating member 21 has a control knob 26 extending out of the through hole 11. When the control knob 26 is rotated and points to different indication areas 12, the switching ring 25 can be rotated to different angles to drive different magnetic brackets 24 to move and conduct the set water channel 33.

[0055] Specifically, Figure 5 and Fig.10 The switching disk 22 may have a mounting column 27 protruding from the middle thereof, and a plurality of positioning recessed holes 271 are provided on the top of the mounting column 27, and each positioning recessed hole 271 is equidistantly distributed circumferentially and corresponds to each valve core seat 32; the rotating member 21 may be rotatably sleeved on the top of the mounting column 27, the switching ring 25 is located on the periphery of the mounting column 27, the control knob 26 is located above the mounting column 27, and a positioning marble 261 is provided on the bottom of the control knob 26, and the positioning marble 261 and the positioning recessed hole 271 cooperate with each other for positioning.

[0056] In this embodiment, two inner and outer circles of positioning recessed holes 271 are provided on the top surface of the mounting column 27, and the number of positioning recessed holes 271 in each circle can be 7. The bottom of the control knob 26 is correspondingly provided with two spaced positioning marbles 261. The two positioning marbles 261 are respectively positioned in cooperation with the positioning recessed holes 271 in the inner and outer circles to realize stable and step-by-step rotation of the rotating part 21, and can make the rotating part 21 evenly stressed without being skewed, so as to facilitate the adjustment of the rotation angle of the rotating part 21.

[0057] like Figure 7 As shown, an outer protrusion 253 protruding outward is provided between adjacent inner protrusions 251 of the switching ring 25 of this embodiment, and an outer recess 254 is provided between adjacent outer protrusions 253; the slot 243 is arranged in the middle of the magnetic bracket 24, and an outer block 245 is provided radially outside the slot 243, and the outer block 245 is used to abut against the outer protrusion 253 and the outer recess 254; thereby, the switching ring 25 can move as a whole in the slot 243.

[0058] Moreover, the inner recess 252 and the inner protrusion 251 of the switching ring 25 can be connected by a slope 255, and the outer recess 254 and the outer protrusion 253 can also be connected by a slope 255; the inner block 244 and the outer block 245 of the magnetic bracket 24 have guide slopes 246 on both sides of the circumference.

[0059] By this, when the switching ring 25 rotates, the cooperation of the guide bevel 246 and the bevel 255 can facilitate the position switching of the magnetic bracket 24 between the inner recess 252 and the inner protrusion 251, and it is also convenient to overcome the magnetic adsorption force, making the rotation operation more labor-saving, and it is also convenient to rotate the switching ring 25 counterclockwise or clockwise, and can achieve smooth two-way rotation; and the inner clamping block 244 can cooperate with the inner protrusion 251 to drive the magnetic bracket 24 to move inward, and the outer clamping block 245 can cooperate with the outer protrusion 253 to drive the magnetic bracket 24 to move outward.

[0060] A baffle plate 222 may be provided outside the mounting hole 221 of the switching disk 22, and a radially extending guide column 223 may be provided outside the baffle plate 222; the magnetic bracket 24 is slidably sleeved on the guide column 223, and a first elastic member 224 is provided between the magnetic bracket 24 and the baffle plate 222, and the first elastic member 244 may be a spring. The guide column 223 is provided to guide the magnetic bracket 24 to move radially back and forth, and the first elastic member 224 may provide elastic force to assist the magnetic bracket 24 to move away from the valve core 23, that is, to overcome a certain magnetic attraction force, so that the rotation of the rotating member 21 is more labor-saving.

[0061] For example Figures 9 to 11As shown, in this embodiment, the valve core 23 includes a diaphragm rubber part 231, a diaphragm plate 232, the magnetic core 233, a second elastic part 234 and a sleeve 235; the sleeve 235 is installed in the mounting hole 221 of the switching disk 22 and extends upward from the switching disk 22; the interior of the sleeve 235 is hollow and a cover body 236 is provided at the bottom, the diaphragm rubber part 231 is connected to the bottom of the cover body 236 and cooperates with the valve core seat 32; the magnetic core 233 is movably arranged in the inner cavity of the sleeve 235, and the second elastic part 234 is arranged between the upper end of the magnetic core 233 and the top end of the inner cavity of the sleeve 235. The second elastic part 234 can also be a spring, and the active area of ​​the upper end of the magnetic core 233 is located on the radial side of the magnetic bracket 24; the lower end of the magnetic core 233 acts on the diaphragm rubber part 231 through the diaphragm plate 232 to movably open and close the valve core seat 32.

[0062] The magnetic core 233 can press against the diaphragm plate 232 and act on the diaphragm rubber part 231 to close the valve core seat 32 under the action of the second elastic part 234. When the magnetic core 233 is attracted by the magnetic bracket 24, the magnetic core 233 can be driven to overcome the elastic force of the second elastic part 234 and release the pressure on the diaphragm plate 232 and the diaphragm rubber part 231, thereby releasing the blockage of the valve core seat 32 and opening the corresponding water channel 33. By arranging the magnetic bracket 24 on the upper end side of the magnetic core 233, a better magnetic effect can be achieved, ensuring that the magnetic bracket 24 can reliably attract the iron core of the magnetic core 233 to move.

[0063] In this embodiment, a water outlet pipe 321 and a water inlet pipe 322 are provided in the valve core seat 32 , and the water outlet pipe 321 and the water inlet pipe 322 are interconnected to form the water channel 33 ; the water outlet pipe 321 of this embodiment is sleeved on the inner side of the water inlet pipe 322 .

[0064] The diaphragm rubber part 231 of the valve core 23 is used to flexibly open and close the water outlet pipe 321. The valve core 23 and the valve core seat 32 can cooperate to form a pilot valve structure, and the pilot valve structure is used to conveniently open and close the water channel 33; specifically, the diaphragm plate 232 is located in the pilot cavity 237 formed between the cover body 236 and the diaphragm rubber part 231, and a third elastic part 238 is provided above the diaphragm plate 232 and between the cover body 236, and the third elastic part 238 can be a spring; the middle convex part of the diaphragm plate 232 passes through the diaphragm rubber part 231 and has a pilot hole 2321 connecting the pilot cavity 237 and the water outlet pipe 321, and the outer periphery of the diaphragm rubber part 231 has a connecting hole 2311 connecting the pilot cavity 237 and the water inlet pipe 322; the bottom of the magnetic core 233 is provided with an end cap 239 for flexibly blocking the pilot hole 2321. In the blocked state, water enters the water inlet pipe 322 and then fills the pilot chamber 237 from the connecting hole 2311, so that the water pressure balance is maintained between the pilot chamber 237 and the chamber of the water inlet pipe 322. At the same time, the magnetic core 233 can press against the pilot hole 2321 of the diaphragm plate 232 to block the water outlet pipe 321. When the magnetic core 233 is attracted to leave the diaphragm plate 232, the end cap 239 also releases the blockage of the pilot hole 2321. The water in the pilot chamber 237 can flow from the pilot hole 2321 to the water outlet pipe 321 for pressure relief. After the pressure of the pilot chamber 237 is less than the pressure in the chamber of the water inlet pipe 322, the diaphragm rubber part 231 and the diaphragm plate 232 are pushed open by the water pressure, so that the water outlet pipe 321 is connected to the water inlet pipe 322, and the waterway channel 33 is connected.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the present invention should still belong to the protection scope of the present invention.

[0066] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

Claims

1. A multi-waterway rotary control valve for controlling water discharge from a pump, characterized in that: It includes a valve body, a switching mechanism and a waterway mechanism; The water channel mechanism is installed below the valve body, and the switching mechanism is installed between the valve body and the water channel mechanism; The water channel mechanism is provided with an installation cavity at the top, and a plurality of valve core seats are arranged at intervals in the circumferential direction in the installation cavity. The water channel mechanism is provided with a plurality of water channel channels at the bottom, each of which has at least one inlet and one outlet, and each of which is connected to at least one valve core seat. The switching mechanism includes a rotating part, a switching disk, a plurality of valve cores and a plurality of magnetic brackets; The switching disk is installed in the installation cavity, and a plurality of mounting holes are provided on the switching disk corresponding to each valve core seat, and the valve cores are respectively installed in the mounting holes, and the valve cores are used to movably open and close the water channel where the corresponding valve core seat is located; the switching disk is slidably connected to the magnetic brackets on the radial outer side of each mounting hole; a magnetic member is provided on the radial inner side of the magnetic bracket; a magnetic core that can move up and down is provided in the valve core, and when the magnetic member approaches the valve core, the magnetic core is attracted to move and open the valve core seat, and when the magnetic member is away from the valve core, the magnetic core is reset to block the valve core seat; The rotating member is rotatably installed above the switching disk, and a switching ring is provided at the bottom of the rotating member; each of the magnetic brackets is provided with a circumferentially penetrating slot; the switching ring is inserted into the slot of each magnetic bracket, and a plurality of inner protrusions are provided on the inner side of the switching ring, and each inner protrusion is distributed at intervals in the circumference, and there is an inner recess between adjacent inner protrusions; the rotation of the rotating member drives the switching ring to rotate through the slots of each magnetic bracket, and the radial inner side of the slot is provided with an inner block, and when the inner block abuts against the inner protrusion of the switching ring, it drives the corresponding magnetic bracket to move radially inward along the switching disk to a first position close to the valve core, and when the inner block abuts against the inner recess, it drives the corresponding magnetic bracket to move radially outward along the switching disk to a second position away from the valve core; The arc lengths of the inner protrusions and the inner depressions are set according to actual conduction requirements of the water channels.

2. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 1, characterized in that: A through hole is provided on the top of the valve body, and a plurality of indication areas are respectively provided on the periphery of the through hole; a control knob extending out of the through hole is provided on the top of the rotating member, and when the control knob is rotated and points to different indication areas, different magnetic brackets are driven to move to open the set water channel.

3. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 2, characterized in that: The switching disk has a mounting column in the middle, and a plurality of positioning recessed holes are provided on the top of the mounting column. The positioning recessed holes are equidistantly distributed circumferentially and correspond to the valve core seats. The rotating member is rotatably mounted on the top of the mounting column, the switching ring is located on the periphery of the mounting column, the control knob is located above the mounting column, and a positioning marble is provided at the bottom of the control knob, and the positioning marble and the positioning recessed holes cooperate with each other for positioning.

4. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 1, characterized in that: An outer protrusion protruding outward is provided between adjacent inner protrusions of the switching ring, and an outer recess is provided between adjacent outer protrusions; the card slot is arranged in the middle part of the magnetic suction bracket, and an outer card block is provided radially outside the card slot, and the outer card block is used to abut against the outer protrusion and the outer recess.

5. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 4, characterized in that: The inner recess and the inner convex block of the switching ring are connected by an inclined surface, and the outer recess and the outer convex block are also connected by an inclined surface; the inner and outer clamping blocks of the magnetic bracket have guiding inclined surfaces on both sides of the circumference.

6. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 1, characterized in that: A baffle is provided on the outside of the mounting hole of the switching disk, and a radially outwardly extending guide column is provided on the outside of the baffle; the magnetic bracket is slidably sleeved on the guide column.

7. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 6, characterized in that: A first elastic member is also provided between the magnetic bracket and the baffle.

8. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 1, characterized in that: The valve core includes a diaphragm rubber part, a diaphragm plate, the magnetic core, a second elastic part and a sleeve; the sleeve is installed in the mounting hole of the switching disk and extends upward from the switching disk; the interior of the sleeve is hollow and a cover body is provided at the bottom, the diaphragm rubber part is connected to the bottom of the cover body and cooperates with the valve core seat; the magnetic core is movably arranged in the inner cavity of the sleeve, the second elastic part is arranged between the upper end of the magnetic core and the top end of the inner cavity of the sleeve, and the movable area of ​​the upper end of the magnetic core is located on the radial side of the magnetic bracket; the lower end of the magnetic core acts on the diaphragm rubber part through the diaphragm plate to movably open and close the valve core seat.

9. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 8, characterized in that: A water outlet pipe and a water inlet pipe are arranged in the valve core seat, and the water outlet pipe and the water inlet pipe are interconnected to form the water channel; the diaphragm rubber part of the valve core is used for movably opening and closing the water outlet pipe.

10. A multi-waterway rotary control valve for controlling water discharge from a pump according to claim 9, characterized in that: The diaphragm plate is located in the pilot cavity formed between the cover body and the diaphragm rubber piece, and a third elastic piece is provided above the diaphragm plate and between the cover body; the middle convex portion of the diaphragm plate penetrates the diaphragm rubber piece and has a pilot hole connecting the pilot cavity and the water outlet pipe, and the outer periphery of the diaphragm rubber piece has a connecting hole connecting the pilot cavity and the water inlet pipe; an end cap is provided at the bottom of the magnetic core for movably blocking the pilot hole.

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