CN219841061U - Flow control valve core with improved structure - Google Patents

Abstract

The utility model provides a flow control valve core with an improved structure, and belongs to the technical field of faucet valve cores. The device comprises a shell, wherein a shell, a rotary lining ring, a flow regulating moving plate and a flow regulating fixed plate are arranged in the shell from top to bottom, a switch assembly, a switch moving plate and a switch fixed plate are arranged in the shell from top to bottom, the switch moving plate is connected with the switch assembly, the switch moving plate is abutted against the switch fixed plate, and the bottom surface of the switch fixed plate is abutted against the rotary lining ring; the driving switch assembly drives the switch moving plate to rotate so as to be communicated with or blocked from the switch stator; the driving shell rotates to drive the rotary lining ring and the flow regulating moving plate to synchronously rotate, so that the flow regulating moving plate is communicated with or blocked from the flow regulating fixed plate. The valve core is provided with a switch stator and a rotary lining ring, and the switch stator is separated from direct contact with the flow regulating rotor, so that the valve core has a double switch function, and when any one of the functions of the switch stator, the flow regulating rotor and the flow regulating stator is invalid, the valve core can be at least closed, and continuous outflow of water flow with invalid valve core is avoided.

Description

Flow control valve core with improved structure

Technical Field

The utility model relates to the technical field of faucet valve cores, in particular to a flow control valve core with an improved structure.

Background

At present, the valve core in the prior art is controlled to be opened and closed through the valve rod and the water yield is controlled to be closed after water is used each time, so that the water yield required by a user can be obtained only by readjusting the valve core when water is used next time, and the valve core is inconvenient for the user to use.

For this reason, our country patent discloses a flow control valve core, application number: 2021207168206 the case includes shell, adjustment mechanism, switch mechanism and quiet porcelain piece, the shell has installation cavity and intercommunication installation cavity's mounting hole, set up in the installation cavity and communicate external through-hole one, adjustment mechanism rotate set up in the installation cavity, just adjustment mechanism's outer end stretches out the mounting hole, switch mechanism set up in the adjustment mechanism, quiet porcelain piece detachable circumference is fixed in the installation cavity, set up on the quiet porcelain piece and cross water hole one, adjustment mechanism can with cross water hole one intercommunication and cover, switch mechanism can with cross water hole one and through-hole one intercommunication and cut off. The adjusting mechanism comprises an adjusting piece and an adjusting movable ceramic piece, wherein the adjusting movable ceramic piece is provided with a water passing hole II, and the adjusting movable ceramic piece is driven to rotate by the adjusting piece, so that the water passing hole II is communicated with the water passing hole I completely or partially, namely, the flow is adjusted by adjusting the communication area of the water passing hole II and the water passing hole I; the switch mechanism comprises a switch movable ceramic chip and a driving component, the switch movable ceramic chip is abutted to the adjustment movable ceramic chip, the switch movable ceramic chip can cover the water hole II, the driving component drives the switch movable ceramic chip to rotate, so that the yielding groove is communicated with the water hole II, or the switch movable ceramic chip directly covers the water hole II, and the opening and closing control of the switch mechanism to the valve core is realized. After the valve core is controlled to be opened by the switch mechanism, the water yield is adjusted, so that the valve core can still obtain the water yield preset by the adjusting mechanism after being opened and closed for a plurality of times, the condition that the water yield is required to be adjusted when a user opens and closes the valve core each time is avoided, and the use of the valve core is facilitated.

However, the flow control valve core has a certain problem in actual use, when the adjusting moving ceramic chip is damaged or the adjusting moving ceramic chip rotates, the adjusting moving ceramic chip breaks down to cause the axial deviation of the valve core, at the moment, the sealing contact between the adjusting moving ceramic chip and the switching moving ceramic chip and the static ceramic chip fails, the switching moving ceramic chip cannot effectively cover and adjust the moving ceramic chip, the valve core cannot adjust the flow rate and cannot play a switching role, water always flows out of the valve core along a water pipe, a large amount of water resources can be wasted before a faucet or the valve core is replaced, and even leakage brought by the problems of neighborhood disputes and the like are caused. For this reason, the valve element in the prior art needs to be improved.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the flow control valve core which is more reasonable in design and has double-switch insurance, so that the valve core can be closed in time when part of accessories are damaged, and the waste of water resources is avoided.

In order to achieve the above purpose, the present utility model provides the following technical solutions.

The flow control valve core with improved structure comprises a shell, wherein a shell inner cavity which is penetrated up and down is arranged in the shell, and a shell water through hole is arranged on the peripheral wall of the shell; the lower end of the shell is clamped with the base; the inner cavity of the shell is internally provided with a shell, a rotary lining ring, a flow regulating moving plate and a flow regulating stator from top to bottom, the bottom of the shell is fixedly connected with the rotary lining ring, the flow regulating moving plate is clamped with the rotary lining ring, the flow regulating moving plate is abutted with the flow regulating stator, and the flow regulating stator is abutted against the base; the shell is internally provided with an inner cavity which penetrates through the shell from top to bottom, the peripheral wall of the shell is provided with a shell water through hole, and the shell water through hole is communicated with the shell water through hole; a switch assembly, a switch moving plate and a switch fixed plate are arranged in the inner cavity of the shell from top to bottom, the switch moving plate is connected with the switch assembly, the switch moving plate is abutted against the switch fixed plate, and the bottom surface of the switch fixed plate is abutted against the rotary lining ring; the switch moving plate is provided with a first water passing hole which is communicated with the water passing hole of the shell, the switch moving plate is provided with a second water passing hole, and the switch assembly is driven to drive the switch moving plate to rotate so that the first water passing hole is communicated with or blocked from the second water passing hole; the flow regulating moving plate is provided with a third water passing hole, the flow regulating moving plate is provided with a fourth water passing hole, the middle part of the rotary lining ring is provided with a transition water passing hole, and the second water passing hole is communicated with the third water passing hole through the transition water passing hole; the driving shell rotates to drive the rotary lining ring and the flow regulating moving plate to synchronously rotate, so that the third water passing hole and the fourth water passing hole are communicated or blocked.

Further, a switch stator clamping block is arranged on the periphery wall of the switch stator.

Further, a limiting snap ring and an internal thread are arranged on the inner wall of the bottom of the shell, wherein the limiting snap ring is positioned between the water port of the shell and the internal thread; the limiting clamping ring is provided with a fixed-piece limiting clamping groove, the internal thread is provided with a clamping block through groove, and the clamping block through groove is right below the fixed-piece limiting clamping groove; the fixture block through groove is used for the switch stator fixture block to pass through, and the stator limit fixture groove is used for accommodating the switch stator fixture block, so that the switch stator is positioned in the circumferential direction to avoid being driven to rotate.

Further, the rotary lining ring is in a convex ring shape, the outer wall of the convex part on the rotary lining ring is provided with external threads, and the inner wall of the lower ring part of the rotary lining ring is provided with a rotary clamping groove; the bottom of the rotary lining ring and the outer side of the rotary clamping groove are provided with a lining ring lower annular groove, and the top of the rotary lining ring and the inner side of the external thread are provided with a lining ring upper annular groove.

Further, the flow regulating moving plate is in a convex ring shape, a third water passing hole which is penetrated up and down is arranged in the middle of the flow regulating moving plate, and the bottom of the third water passing hole is radially and symmetrically extended to form a double-wing groove; the upper protruding part of the flow regulating moving plate is an external hexagon, and is plugged into the rotary clamping groove of the rotary lining ring, and the rotary clamping groove is in an internal hexagon shape.

Further, a moving plate clamping groove which is penetrated up and down is arranged in the middle of the switch moving plate and used for being connected with the switch component in a penetrating way, and the moving plate clamping groove is square ladder-shaped.

Further, the switch assembly comprises a valve rod, a pressing pipe, a spring, a connecting shaft and a driving plate, wherein the pressing pipe is arranged in the valve rod in a penetrating mode and can move up and down along the valve rod, the connecting shaft is located below the valve rod, the spring is located between the pressing pipe and the connecting shaft, the bottom of the spring is enabled to be in contact with a rotating claw on the upper portion of the connecting shaft through pressing the pressing pipe, the rotating claw is converted into circumferential movement through axial movement, the connecting shaft is driven to rotate, the lower end of the driving plate is inserted into a moving plate clamping groove of a moving plate of the switch, a connecting rod on the lower portion of the connecting shaft penetrates through the driving plate to be inserted into the moving plate clamping groove of the moving plate of the switch, the connecting shaft and the driving plate are connected in a synchronous mode, and the driving plate and the moving plate are connected in a synchronous mode to drive the moving plate of the switch.

Further, the lower part of the connecting shaft is a connecting rod, a connecting shaft collar step with a reduced diameter is arranged in the middle of the shell, a connecting hole is reserved in the middle of the connecting shaft collar step, the connecting shaft collar step is used for accommodating the connecting shaft and allowing the connecting shaft to pass through simultaneously, the connecting rod comprises a round rod part and a square rod part from top to bottom, the circumference of the square rod part is smaller than that of the round rod part, during installation, the connecting shaft of the connecting shaft passes through the connecting hole, the round rod part is positioned at the connecting hole, the connecting shaft can freely rotate in the middle of the connecting shaft collar step, and the square rod part sequentially passes through the driving plate and the switch moving plate to be in limiting connection with the driving plate and the switch moving plate.

Further, a valve rod positioning opening with an upward opening is formed in the upper end of the shell, and a valve rod positioning block is arranged on the peripheral wall of the valve rod; the upper end peripheral wall of the shell is provided with a clamp spring groove, the bottom of the valve rod positioning opening is positioned below the clamp spring groove, the valve rod positioning block is arranged on the valve rod positioning opening, and the clamp spring is arranged in the clamp spring groove, so that the valve rod can be locked on the shell.

Furthermore, the valve rod can be sleeved with a hand wheel, and a vertical line rack is arranged on the outer wall of the hand wheel.

In the utility model, the switch stator and the rotary lining ring are arranged to separate the direct contact of the switch rotor and the flow regulating rotor, so that the valve core has double switch functions, namely a main switch function of the switch rotor and an auxiliary switch function of the flow regulating rotor, and simultaneously has the function of regulating the water flow of the valve core of the flow regulating rotor and the flow regulating stator, so that when any one of the functions of the switch rotor, the flow regulating rotor and the flow regulating stator fails, the valve core can be at least closed, and the continuous outflow of the water flow with failure of the valve core is avoided, thereby wasting water resources.

Drawings

FIG. 1 is a schematic view of the overall structure of a flow control valve cartridge of the present utility model.

FIG. 2 is a cross-sectional view of a flow control valve cartridge of the present utility model.

Fig. 3 is a schematic structural view of the case in the embodiment.

Fig. 4 is a schematic view of another angle structure of the housing in the embodiment.

Fig. 5 is a cross-sectional view of the housing in an embodiment.

Fig. 6 is a schematic structural view of the connecting shaft in the embodiment.

Fig. 7 is a schematic view of the structure of the valve stem in the embodiment.

Fig. 8 is a schematic view of a structure of a rotary liner ring in an embodiment.

FIG. 9 is a schematic view of another angular configuration of a rotating liner ring in an embodiment.

Fig. 10 is a schematic structural view of a flow regulating rotor in the embodiment.

FIG. 11 is a schematic diagram of a flow regulating stator in an embodiment.

Fig. 12 is a schematic structural view of a switch blade in the embodiment.

Fig. 13 is a schematic view of the structure of the switch stator in the embodiment.

In the figure, 1, a shell; 101. a housing water port; 2. a base; 3. a housing; 31. a housing interior; 311. connecting collar steps; 312. a connection hole; 32. a shell water port; 33. a clamp spring groove; 36. a limiting snap ring; 37. an internal thread; 38. a stator limiting clamping groove; 39. the clamping block is provided with a through groove; 310. a valve rod positioning port; 4. rotating the backing ring; 41. a transitional water through hole; 42. an external thread; 43. a rotary clamping groove; 44. a lining ring lower ring groove; 45. a ring groove is arranged on the lining ring; 5. a flow regulating moving plate; 51. a third water passing hole; 6. flow regulating stator; 61. a fourth water passing hole; 7. a switch assembly; 71. a valve stem; 711. a valve rod positioning block; 72. pressing the tube; 73. a spring; 74. a connecting shaft; 741. a connecting rod; 742. a round rod part; 743. a square rod part; 75. a dial; 8. a switch rotor; 81. a first water passing hole; 82. a moving plate clamping groove; 9. a switch stator; 91. a second water passing hole; 92. a switch stator clamping block; 10. and a decorative hand wheel.

Description of the embodiments

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-13, this embodiment provides a flow control valve core with improved structure, which includes a housing 1, a housing cavity penetrating up and down is provided in the housing 1, a housing mounting hole is provided at an upper end opening, and a housing water through hole 101 is provided on a peripheral wall of the housing 1. The lower end of the shell 1 is clamped with a base 2, and a base water hole is arranged in the middle of the base 2.

The top-down device has casing 3, rotatory backing ring 4, accent flow moving plate 5, accent flow stator 6 in the shell inner chamber 100, and casing 3 bottom and rotatory backing ring 4 spiro union are fixed, and accent flow moving plate 5 and rotatory backing ring 4 joint spacing, accent flow moving plate 5 and accent flow stator 6 are leaned on, and accent flow stator 6 bottom and base 2 upper end between set up the sealing washer.

The casing 3 is in a ring column shape, an inner cavity 31 of the casing is vertically penetrated, a casing water through hole 32 is arranged on the peripheral wall of the casing, and the casing water through hole 32 is communicated with the casing water through hole 101. The switch assembly 7, the switch moving plate 8 and the switch stator 9 are arranged in the inner cavity 31 of the shell from top to bottom. The switch moving plate 8 and the switch fixed plate 9 are abutted, the switch assembly 7 is connected with the switch moving plate 8 and can drive the switch moving plate 8 to rotate, so that a through hole between the switch moving plate 8 and the switch fixed plate 9 is communicated or shielded, and the valve core is closed or opened. The switch stator 9 is clamped at the bottom of the shell 3.

The rotary lining ring 4 is in a convex ring shape, a transitional water through hole 41 which is penetrated up and down is arranged in the middle of the rotary lining ring, an external thread 42 is arranged on the outer wall of the upper part of the rotary lining ring 4, a rotary clamping groove 43 is arranged on the inner wall of the lower part of the rotary lining ring 4, the rotary clamping groove 43 is in an inner hexagonal shape, a lining ring lower annular groove 44 is arranged at the bottom of the rotary lining ring 4 and the outer side of the rotary clamping groove 43, and a sealing ring is arranged in the rotary clamping groove and is in sealing contact with the upper end face of the upper convex part of the flow regulating moving plate 5; the top of the rotary lining ring 4 and the inner side of the external thread 42 are provided with a lining ring upper ring groove 45, and a sealing ring is arranged in the lining ring upper ring groove and is in sealing contact with the bottom surface of the switch stator 9.

The flow regulating moving plate 5 is in a convex ring shape, the middle part of the flow regulating moving plate is provided with a third water passing hole 51 which is penetrated up and down, and the bottom of the third water passing hole 51 symmetrically and radially extends to form a double-wing groove 52; the upper protruding part of the flow regulating rotor 5 is an outer hexagon 53, which is plugged into the rotary clamping groove 43 of the rotary lining ring 4, and is clamped and connected to rotate synchronously in the circumferential direction.

The flow regulating stator 6 is provided with two fourth water passing holes 61 which are oppositely arranged, and the fourth water passing holes 61 are fan-shaped; the outer peripheral wall of the flow-regulating stator 6 is provided with a stator stopper 62.

When the flow regulating piece 5 rotates, the double-wing groove 52 covers or is far away from the fourth water passing hole 61, and the control water flow enters the third water passing hole 51.

The middle part of the switch moving plate 8 is provided with a moving plate clamping groove 82 which is penetrated up and down and is used for being connected with the switch assembly 7 in a penetrating way, the moving plate clamping groove 82 is in a square ladder shape, and the square groove can limit and clamp the switch moving plate 8 and the switch assembly 7 in the circumferential direction so as to realize the effect that the switch assembly 7 can be driven to rotate by driving the switch moving plate 8.

A plurality of first water passing holes 81 which are opened outwards are arranged at intervals at the bottom of the switch moving plate 8, and the first water passing holes 81 can be communicated with the second water passing holes 91 and the shell water passing holes 31. The first water passing holes 81 may be "L" -shaped through holes instead of the above-described open slots.

The switch stator 9 is provided with a second water passing hole 91 penetrating up and down, and a switch stator clamping block 92 is arranged on the same wall.

The bottom surface of the switch moving plate 8 is provided with a shallow groove corresponding to the second water passing hole 91, which is used for hiding sealing oil and can maintain the sealing effect for a longer time.

The switch moving plate 8 and the switch moving plate 9 cooperate to cover the second water passing hole 91 or to communicate the first water passing hole 81 with the second water passing hole 91. The matching switch blocks the upward circulation path of the water flow.

The peripheral wall of the shell 3 is provided with a clamp spring groove 33, a first shell seal groove 34 and a second shell seal groove 35 from top to bottom, wherein the first shell seal groove 34 and the second shell seal groove 35 are respectively positioned above and below the shell water through hole 32 and are respectively provided with sealing rings; a limiting snap ring 36 and an internal thread 37 are arranged on the inner wall of the bottom of the shell 3, wherein the limiting snap ring 36 is positioned between the shell water through hole 32 and the internal thread 37; the limiting snap ring 36 is provided with a stator limiting clamping groove 38, the internal thread 37 is provided with a clamping block through groove 39, the clamping block through groove 39 is right below the stator limiting clamping groove 38, the number of the stator limiting clamping grooves 38 is consistent with that of the switch stator clamping blocks 92 on the switch stator 9, the clamping block through groove 39 is used for the switch stator clamping blocks 92 to pass through, and the stator limiting clamping groove 38 accommodates the switch stator clamping blocks 92 so that the switch stator 9 can be positioned in the circumferential direction to avoid being driven to rotate.

The switch assembly 7 comprises a valve rod 71, a pressing pipe 72, a spring 73, a connecting shaft 74 and a driving plate 75, wherein the pressing pipe 72 is arranged in the valve rod 71 in a penetrating mode and can move up and down along the valve rod 71, the connecting shaft 74 is located below the valve rod 71, the spring 73 is located between the pressing pipe 72 and the connecting shaft 74, the bottom of the pressing pipe 72 is enabled to be in contact with a rotating claw on the upper portion of the connecting shaft 74 through pressing, axial movement is converted into circumferential movement to drive the connecting shaft 74 to rotate, the lower end of the driving plate 75 is inserted into a moving plate clamping groove 82 of the switch moving plate 8, a connecting rod on the lower portion of the connecting shaft 74 penetrates through the driving plate 75 to be inserted into the moving plate clamping groove 82 of the switch moving plate 8, the connecting shaft 74 and the driving plate 75 are clamped and can synchronously rotate, and the driving plate 75 and the switch moving plate 8 are connected and synchronously to drive the driving plate to rotate. After the external force for pressing the pressing tube 72 is removed, the spring 73 is reset to drive the pressing tube 72 to move upward, and the pressing tube 72 is disconnected from the connecting shaft 74. Pressing the pressing tube 72 for multiple times can rotate the switch rotor 8 for multiple times, so that the first water passing hole 81 and the second water passing hole 91 are communicated or blocked, and the effect of switching the valve core is achieved.

The valve rod 71 bears the functions of rotating to drive the shell 3 and the flow regulating moving plate 5 to synchronously rotate and for the pressing pipe 72 to move up and down to drive the connecting shaft 74 and the switching moving plate 8 to synchronously rotate, and the rotation of the flow regulating moving plate 5 and the switching moving plate 8 independently operates, so that the integral valve core has a compact structure and can switch and regulate flow.

In the embodiment, the switch of the valve core is controlled by using a pressing mode, the pressing operation is simple and different from the rotating operation, and the operation effects of the switch and the flow regulating can be more clearly distinguished.

The switch assembly can also be of an integrated structure, the driving of the switch moving plate and the driving of the shell are respectively carried out, for example, the outer end of the shell can extend out of the shell and can be screwed by hand to rotate independently, the switch assembly is independently sliding in the shell and connected with the switch moving plate, and the switch assembly is screwed by hand to enable the switch moving plate to rotate independently.

The upper end of the housing 3 is provided with a valve rod positioning opening 310 with an upward opening, and the peripheral wall of the valve rod 71 is provided with a valve rod positioning block 711. By matching with the snap spring, the valve rod 71 can be locked on the shell 3, and the shell 3 can be driven to synchronously rotate by rotating the valve rod 71.

The middle part of the shell 3 is provided with a connecting collar step 311 with a reduced diameter, a connecting hole 312 is reserved in the middle part of the connecting collar step 311, the connecting collar step 311 is used for accommodating the connecting shaft 74 and allowing a connecting rod 741 at the lower part of the connecting shaft 74 to pass through, the connecting rod 741 comprises a round rod part 742 and a square rod part 743 from top to bottom, the circumference of the square rod part 743 is smaller than that of the round rod part 742, when the connecting collar is installed, the connecting rod 741 of the connecting shaft 74 passes through the connecting hole 312, the round rod part 742 is positioned at the connecting hole 312, the connecting shaft 74 can freely rotate in the middle of the connecting collar step 311, the square rod part 743 sequentially passes through the driving plate 75 and the switch moving plate 8 to be in limiting connection with the driving plate 75 and the switch moving plate 8, and the driving plate 75 and the switch 8 can be driven to synchronously rotate when the connecting shaft 74 rotates.

The valve rod 71 can be sleeved with the hand wheel 10, and a vertical-line rack is arranged on the outer wall of the hand wheel 10, so that force application is facilitated. A hand wheel limiting block can be arranged on the hand wheel 10, and a shell limiting block can be arranged correspondingly at the top of the shell, so that the rotation angle of the hand wheel is limited, and the rotation angle of the flow regulating moving plate 5 is further limited.

When the valve rod is assembled, the connecting rod 741 of the connecting shaft 74 is inserted downwards into the shell 3, the spring 73 is arranged at the upper part of the connecting shaft 74, the pressing pipe 72 is plugged upwards and is arranged into the valve rod 71, then the valve rod 71 is arranged into the shell 3, the pressing pipe 72 is sleeved outside the spring 73, the valve rod positioning block 711 is arranged on the valve rod positioning port 310, and the clamp spring is arranged on the clamp spring groove 33, so that the valve rod 71 is sleeved on the shell 3; the dial 75 is then inserted from below the housing 3 and around the square stem 743 to complete the overall installation of the switch assembly 7. Then, the switch rotor 8 and the switch rotor 9 are sequentially inserted from below the housing 3, and the rotary backing ring 4 is screwed. The above semi-finished product is inserted from below the housing 1, the pressing tube 72 and a part of the valve stem 71 are exposed to the housing mounting hole, and a person presses the pressing tube 72 and rotates the valve stem 71. Then, a flow regulating moving plate 5 and a flow regulating stator 6 are plugged in sequence from the lower direction of the shell 1, and finally the base 2 is clamped at the bottom of the shell 1. The valve stem 71 is sleeved outside the hand wheel 10.

When the flow control valve core works, water flow enters from the bottom of the valve core, can flow out from the shell water through hole 32 and the shell water through hole 101 through the base 2, the flow regulating stator 6, the flow regulating rotor 5, the rotary bushing 4, the switch stator 9 and the switch rotor 8, and drives the switch rotor 8 to rotate by driving the switch assembly 7 (in the embodiment, the connecting shaft 74 is driven to rotate by pressing the pressing pipe 72), so that the circulation of continuous water can be blocked, the function of switching the valve core is realized, and the valve core is turned on or turned off once every time the valve core is pressed; the valve rod 71, the shell 3, the rotary lining ring 4 and the flow regulating moving plate 5 are sequentially driven to rotate by rotating the hand wheel 10, so that the circulation of continuous water can be blocked, and meanwhile, the flow regulating effect can be achieved by rotating different angles.

It should be noted that reverse water intake is also possible, and the same can be used.

In the utility model, the switch stator and the rotary lining ring are arranged to separate the direct contact of the switch rotor and the flow regulating rotor, and the rotary operation of the switch rotor and the flow regulating rotor is independently carried out, so that the valve core has double switch functions, namely a main switch function of the switch rotor and an auxiliary switch function of the flow regulating rotor, and simultaneously has the function of regulating the water flow of the valve core of the flow regulating rotor and the flow regulating stator, so that when any one of the functions of the switch rotor, the flow regulating rotor and the flow regulating stator fails, the valve core can be at least closed, and the continuous outflow of the invalid water flow of the valve core is avoided, thereby wasting water resources.

The foregoing is merely exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. The flow control valve core with the improved structure is characterized by comprising a shell (1), wherein a shell inner cavity which is vertically penetrated is arranged in the shell (1), and a shell water through hole (101) is arranged on the peripheral wall of the shell (1); the lower end of the shell (1) is clamped with the base (2); the inner cavity of the shell is internally provided with a shell (3), a rotary lining ring (4), a flow regulating moving plate (5) and a flow regulating stator (6) from top to bottom, the bottom of the shell (3) is fixedly connected with the rotary lining ring (4), the flow regulating moving plate (5) is clamped with the rotary lining ring (4), the flow regulating moving plate (5) is attached to the flow regulating stator (6), and the flow regulating stator (6) is abutted against the base (2); the shell (3) is internally provided with an inner cavity (31) which penetrates through the shell up and down, the peripheral wall of the shell is provided with a shell water through hole (32), and the shell water through hole (32) is communicated with the shell water through hole (101); a switch assembly (7), a switch moving plate (8) and a switch fixed plate (9) are arranged in the inner cavity (31) of the shell from top to bottom, the switch moving plate (8) is connected with the switch assembly (7), the switch moving plate (8) is abutted with the switch fixed plate (9), and the bottom surface of the switch fixed plate (9) is abutted against the rotary lining ring (4); a first water passing hole (81) is formed in the switch moving plate (8), the first water passing hole (81) is communicated with the shell water passing hole (32), a second water passing hole (91) is formed in the switch fixed plate (9), and the switch assembly (7) is driven to drive the switch moving plate (8) to rotate so that the first water passing hole (81) and the second water passing hole (91) are communicated or blocked; a third water passing hole (51) is formed in the flow regulating moving plate (5), a fourth water passing hole (61) is formed in the flow regulating fixed plate (6), a transition water passing hole (41) is formed in the middle of the rotary lining ring (4), and the second water passing hole (91) is communicated with the third water passing hole (51) through the transition water passing hole (41); the driving shell (3) rotates to drive the rotary lining ring (4) and the flow regulating moving plate (5) to synchronously rotate, so that the third water passing hole (51) and the fourth water passing hole (61) are communicated or blocked.

2. The structurally improved flow control valve cartridge of claim 1, wherein the switching stator (9) is provided with a switching stator block (92) at its peripheral wall.

3. The structurally improved flow control valve core according to claim 2, characterized in that a limit snap ring (36) and an internal thread (37) are arranged on the inner wall of the bottom of the housing (3), wherein the limit snap ring (36) is positioned between the housing water through hole (32) and the internal thread (37); the limiting clamp ring (36) is provided with a stator limiting clamp groove (38), the internal thread (37) is provided with a clamping block through groove (39), and the clamping block through groove (39) is arranged right below the stator limiting clamp groove (38); the clamping block through groove (39) is used for the switching stator clamping block (92) to pass through, and the stator limiting clamping groove (38) is used for accommodating the switching stator clamping block (92) so that the switching stator (9) is positioned in the circumferential direction to avoid being driven to rotate.

4. The flow control valve cartridge with improved structure according to claim 3, characterized in that the rotary liner ring (4) is in a convex ring shape, the outer wall of the upper convex part of the rotary liner ring (4) is provided with an external thread (42), and the inner wall of the lower ring part of the rotary liner ring (4) is provided with a rotary clamping groove (43); the bottom of the rotary lining ring (4) and the outer side of the rotary clamping groove (43) are provided with a lining ring lower annular groove (44), and the top of the rotary lining ring (4) and the inner side of the external thread (42) are provided with a lining ring upper annular groove (45).

5. The flow control valve core with improved structure according to claim 4, characterized in that the flow regulating rotor (5) is in a convex ring shape, the middle part of the flow regulating rotor is provided with a third water passing hole (51) which is penetrated up and down, and the bottom of the third water passing hole (51) is radially and symmetrically extended to form a double-wing groove (52); the upper protruding part of the flow regulating moving plate (5) is an outer hexagon (53), the flow regulating moving plate is plugged into the rotary clamping groove (43) of the rotary lining ring (4), and the rotary clamping groove (43) is in an inner hexagon shape.

6. The flow control valve core with improved structure according to any one of claims 1-5, characterized in that a moving plate clamping groove (82) penetrating up and down is arranged in the middle of the moving plate (8) of the switch and is used for being connected with the switch assembly (7) in a penetrating way, and the moving plate clamping groove (82) is in a square ladder shape.

7. The structurally improved flow control valve cartridge according to claim 6, wherein the switch assembly (7) comprises a valve rod (71), a pressing tube (72), a spring (73), a connecting shaft (74) and a driving plate (75), the pressing tube (72) is arranged in the valve rod (71) in a penetrating manner and can move up and down along the valve rod (71), the connecting shaft (74) is arranged below the valve rod (71), the spring (73) is arranged between the pressing tube (72) and the connecting shaft (74), the bottom of the spring (73) is contacted with a rotating claw at the upper part of the connecting shaft (74) through pressing the pressing tube (72), the axial movement is converted into the circumferential movement, the connecting shaft (74) is driven to rotate, the lower end of the driving plate (75) is inserted into a moving plate clamping groove (82) of the switch moving plate (8), the connecting shaft (74) is inserted into the moving plate clamping groove (82) of the switch moving plate (8), the connecting shaft (74) is clamped with the driving plate (75) to synchronously rotate, and the switch moving plate (8) is connected to synchronously drive the driving plate to rotate.

8. The structurally improved flow control valve core according to claim 7, characterized in that the lower part of the connecting shaft (74) is a connecting rod (741), a connecting collar step (311) with a reduced diameter is arranged in the middle of the shell (3), a connecting hole (312) is reserved in the middle of the connecting collar step (311), the connecting collar step (311) is used for accommodating the connecting shaft (74) and allowing the connecting rod (741) to pass through, the connecting rod (741) comprises a round rod part (742) and a square rod part (743) from top to bottom, the circumference of the square rod part (743) is smaller than that of the round rod part (742), when the valve is installed, the connecting rod (741) of the connecting shaft (74) passes through the connecting hole (312), the round rod part (742) is positioned at the connecting hole (312), the connecting shaft (74) can freely rotate in the middle of the connecting collar step (311), and the square rod part (743) sequentially passes through the round rod part (75) and the switch rotor (8) to be in limiting connection with the switch rotor (8).

9. The structurally improved flow control valve cartridge according to claim 7, wherein the upper end of the housing (3) is provided with a valve stem positioning opening (310) with an upward opening, and a valve stem positioning block (711) is provided on the peripheral wall of the valve stem (71); the upper end peripheral wall of the shell (3) is provided with a clamp spring groove (33), the bottom of the valve rod positioning opening (310) is located below the clamp spring groove (33), the valve rod positioning block (711) is arranged on the valve rod positioning opening (310), the clamp spring is arranged in the clamp spring groove (33), and the valve rod (71) can be locked on the shell (3).

10. The structurally improved flow control valve core of claim 9, wherein the valve rod (71) is further sleeved with a hand wheel (10), and a vertical-line rack is arranged on the outer wall of the hand wheel (10).