Water inlet and outlet precision ceramic control valve

Abstract

A water inlet and outlet precise ceramic control valve comprises a valve shell, a valve rod, a rotating seat, a movable valve plate, a fixed valve plate and a valve seat, a containing chamber is formed in the valve shell, an upper end opening is formed in the upper portion of the valve shell, two opposite positions of the inner wall of the containing chamber are respectively provided with a check block in a protruding mode, and the check blocks are connected with the valve rod. Two rotation paths can be formed in the valve shell through the protrusions of the two check blocks, a plurality of limiting flanges are arranged in the upper end opening, the valve rod is provided with a rod body and a driving end, a limiting pin is arranged on the rod body in a penetrating mode, and the driving end is connected with the limiting pin. In addition, at least one first water stop ring and at least one second water stop ring are arranged on the periphery of the rod body and the periphery of the rotating seat in a sleeved mode respectively, a water through hole and a circulation hole are formed in the movable valve plate and the fixed valve plate respectively, and a plurality of sewage discharge grooves are formed in the edge of the upper portion of the fixed valve plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a control valve, specifically to a precision ceramic control valve for controlling water opening and closing and changing water flow size. BACKGROUND

[0002] The water supply equipment such as faucet is internally provided with a precision ceramic control valve, which controls the opening and closing of water source and the water flow size. The precision ceramic control valve is usually provided with a valve stem, a movable valve plate and a fixed valve plate in a valve shell, and a valve seat is combined with the open end. The precision ceramic control valve is installed in the tank of the water supply equipment. During use, the valve stem extending out of the valve shell is rotated to drive the movable valve plate to align the water passage hole with the flow hole of the fixed valve plate, so that the water source is introduced and then flows out of the water outlet of the valve seat. Conversely, if the valve stem is turned back, the water passage hole of the movable valve plate will avoid the flow hole of the fixed valve plate, so that the water source is blocked by the misalignment of the movable valve plate and the fixed valve plate, thereby closing the water source.

[0003] However, the above-mentioned prior art structure still has the following problems in practical application: (1) the rotation range of the valve stem is not limited, so it is necessary to carefully control the rotation force when opening and closing. The precision ceramic control valve cannot accurately stop at the water opening and closing position, which is not convenient for use; (2) impurities are inevitably attached to the water source. When the water with impurities flows through the precision ceramic control valve for a long time, part of the impurities will accumulate between the movable valve plate and the fixed valve plate, which will cause the movable valve plate and the fixed valve plate to be stuck due to the accumulation of impurities, thereby shortening the service life; (3) the valve stem is directly inserted into the valve shell and then extends outwards, which cannot guide the valve stem, so that the valve stem is easily inclined after extension.

[0004] Therefore, how to improve the above-mentioned prior art structure to solve the problems in practical use is the goal of the related industry. Based on this, the inventor has the idea of creation, and designs the utility model based on years of experience. After many discussions, sample tests and many modifications, the utility model is finally developed. CONTENT OF THE UTILITY MODEL

[0005] Technical problems to be solved:

[0006] The prior art precision ceramic control valve cannot accurately stop at the water opening and closing position, and is easily stuck due to the accumulation of impurities, which is the technical problem to be solved.

[0007] Technical features for solving the problem:

[0008] The utility model provides a kind of water inlet and outlet precision ceramic control valve, it includes: a valve shell, a valve stem, a rotating seat, a movable valve piece, a fixed valve piece and a valve seat, wherein, the valve shell inside has a containing room, upper end port is formed, the valve stem, the rotating seat, the movable valve piece and the fixed valve piece are sequentially put into the containing room of the valve shell, the valve stem is provided with the valve shell by the upper end port, two opposite places of the containing room inner wall are projected with a stopper, the projection of the two stoppers can be formed with two rotating paths inside the valve shell, a plurality of limiting flanges are provided in the upper end port, and the containing room is laterally penetrated through the valve shell by at least one water outlet, the valve stem has a stem body and a driving end, the driving end is connected with the rotating seat, a limiting pin is arranged on the stem body, so that the two ends of the limiting pin can horizontally extend out of the stem body, when the valve stem is put into the valve shell, the stem body can be penetrated out of the upper end port, and the limiting pin extending out of the stem body can be exactly accommodated in two rotating paths, the stem body is guided by the limiting flange, and the stem body is not skewed when penetrating out, at least one first water stop ring and at least one second water stop ring are respectively sleeved on the outer periphery of the stem body and the rotating seat, a water passage is provided on the movable valve piece, a flow-through hole is provided on the fixed valve piece, the movable valve piece and the fixed valve piece are overlapped and then put into the containing room of the valve shell, so that the fixed valve piece can be firmly clamped in the valve shell, and the movable valve piece is embedded in the rotating seat, the movable valve piece is rotated by the rotating seat through the rotation of the valve stem, so that the water passage and the flow-through hole can change the alignment relationship to control the opening and closing of water or change the water flow rate, a plurality of drain grooves are provided on the upper edge of the fixed valve piece, impurities between the movable valve piece and the fixed valve piece are discharged in time by the drain grooves, so that the movable valve piece and the fixed valve piece are prevented from being stuck together due to the accumulation of impurities, and the valve seat is combined with the valve shell to prevent the fixed valve piece, the movable valve piece, the rotating seat and the valve stem from falling out of the containing room, a water inlet is provided on the valve seat, so that water can be introduced into the containing room from the water inlet, thereby obtaining a water inlet and outlet precision ceramic control valve.

[0009] Compared with the prior art:

[0010] (1) The utility model provides a water inlet and outlet precision ceramic control valve, a limiting pin is arranged on the valve stem, so that the limiting pin can be rotated in the rotating path by the valve stem, the rotation angle of the limiting pin is limited by the projection of the stopper, so that the opening and closing positions of water can be accurately positioned, and the water source can be accurately controlled to open and close, thereby obtaining a precision ceramic control valve with convenience and practicality.

[0011] (II) The utility model provides a water inlet and outlet precision ceramic control valve, the upper edge of fixed valve piece is equipped with several sewage grooves, utilize the sewage groove and promptly discharge the impurity between the movable valve piece and the fixed valve piece, can prevent the impurity from producing accumulation between the movable valve piece and the fixed valve piece, the movable valve piece and the fixed valve piece have no easy jam, and the service life is long.

[0012] (III) The utility model provides a water inlet and outlet precision ceramic control valve, the valve rod can utilize the guide of the limiting flange, and the valve rod is not produced deflection when passing out.

[0013] (IV) The utility model provides a water inlet and outlet precision ceramic control valve, the second water stop ring is sleeved on the rotary seat, can cooperate the installation of the first water stop ring and play the double protection sealing effect, let the water source in the chamber not leak from the upper port, and the leakage prevention effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional assembly drawing of the utility model.

[0015] Figure 2 It is the three-dimensional exploded view of the utility model.

[0016] Figure 3 It is the valve piece alignment drawing when the utility model closes water.

[0017] Figure 4 It is the combined section view of the utility model.

[0018] Figure 5 It is the A-A section view of the utility model Figure 4 .

[0019] Figure 6 It is the B-B section view of the utility model Figure 4 .

[0020] Figure 7 It is the rotation state drawing of the valve rod of the utility model.

[0021] Figure 8 It is the limiting view when the valve rod of the utility model rotates.

[0022] Figure 9 It is the valve piece alignment drawing when the utility model boils water.

[0023] Symbol explanation:

[0024] Valve shell (10) chamber (11)

[0025] Upper port (12) stop block (13)

[0026] Rotary path - - - (14) Limiting flange - - - (15)

[0027] Water outlet - - - - (16)

[0028] Valve stem - - - - (20) Stem body - - - - (201)

[0029] Driving end - - - - (202) Limiting pin - - - - (21)

[0030] First water stop ring - - (22)

[0031] Rotary seat - - - - (30) Second water stop ring - - (31)

[0032] Movable valve plate - - (40) Water passage hole - - - - (41)

[0033] Fixed valve plate - - - (50) Flow-through hole - - - - (51)

[0034] Drainage groove - - - - (52) Clamping rib - - - - (53)

[0035] Valve seat - - - - - (60) Water inlet - - - - - (61) DETAILED DESCRIPTION

[0036] For the purpose of further understanding and knowing the utility model, the following please cooperate with

the simple explanation of the drawing

[0037] First, please from Figures 1 to 6The utility model discloses a valve, as shown in the figure, including: a valve shell (10), a valve stem (20), a rotating seat (30), a movable valve piece (40), a fixed valve piece (50) and a valve seat (60), wherein the valve shell (10) has a chamber (11) inside, the upper end port (12) is formed on the top, the valve stem (20), the rotating seat (30), the movable valve piece (40) and the fixed valve piece (50) are sequentially put into the chamber (11) of the valve shell (10), the upper end port (12) is used to provide the valve stem (20) to go up and pass out of the valve shell (10), the two opposite places of the inner wall of the chamber (11) are protruded with a stop block (13), the protrusion of the two stop blocks (13) can constitute two rotating paths (14) in the valve shell (10), a plurality of limiting flanges (15) are arranged in the upper end port (12), and the chamber (11) is laterally penetrated through the valve shell (10) by at least one water outlet (16), the valve stem (20) has a stem body (201) and a driving end (202), the driving end (202) is connected with the rotating seat (30), the stem body (201) is provided with a limiting pin (21), the both ends of the limiting pin (21) can horizontally extend out of the stem body (201), when the valve stem (20) is put into the valve shell (10), the stem body (201) can pass out of the upper end port (12), and the both ends of the limiting pin (21) extending out of the stem body (201) can be just accommodated in the two rotating paths (14), the stem body (201) is guided by the limiting flange (15), and the stem body (201) is not inclined when passing out, at least one first water stop ring (22) and at least one second water stop ring (31) are respectively sleeved on the outer periphery of the stem body (201) and the rotating seat (30), the movable valve piece (40) is provided with a water through hole (41), the fixed valve piece (50) is provided with a flow-through hole (51), the movable valve piece (40) and the fixed valve piece (50) are overlapped and then put into the chamber (11) of the valve shell (10), so that the fixed valve piece (50) can be firmly clamped in the valve shell (10), and the movable valve piece (40) is embedded in the rotating seat (30), through the rotation of the valve stem (20), the movable valve piece (40) is driven to rotate by the rotating seat (30), so that the water through hole (41) and the flow-through hole (51) can change the alignment relationship, so as to control the opening and closing of water or change the water flow, and the upper edge of the fixed valve piece (50) is provided with a plurality of drain grooves (52), the impurities between the movable valve piece (40) and the fixed valve piece (50) are discharged in time by the drain grooves (52), so that the impurities are prevented from accumulating between the movable valve piece (40) and the fixed valve piece (50), causing the movable valve piece (40) and the fixed valve piece (50) to be clamped, and the valve seat (60) is combined with the valve shell (10).The valve seat (60) is provided with a water inlet (61) for guiding water into the chamber (11) from the water inlet (61).

[0038] The utility model provides a kind of water inlet and outlet precision ceramic control valve, wherein, inverted triangular limit flange (15) is equipped in the upper port (12).

[0039] The utility model provides a kind of water inlet and outlet precision ceramic control valve, wherein, the water passage hole (41) is the fan-shaped gap that laterally penetrates the periphery of the movable valve plate (40).

[0040] The utility model provides a kind of water inlet and outlet precision ceramic control valve, wherein, the flow-through hole (51) is provided with fan shape.

[0041] The utility model provides a kind of water inlet and outlet precision ceramic control valve, wherein, the periphery of the fixed valve plate (50) is equipped with clamping rib (53), to clamp the fixed valve plate (50) in the chamber (11) of the valve shell (10) by the clamping rib (53).

[0042] When actually used, the precision ceramic control valve of the utility model is placed in the groove chamber reserved in a water using equipment (such as faucet), a handle is provided by the valve rod (20), when the handle drives the valve rod (20) to rotate in a direction (please also refer to the state shown in Figure 7 and Figure 8 , the water passage hole (41) of the movable valve plate (40) will gradually align the flow-through hole (51) of the fixed valve plate (50), so that the water source can not be blocked by the movable valve plate (40), and can be sent into the chamber (11) from the water inlet (61), and then flow out from the flow-through hole (51), the water passage hole (41) through the water outlet (16) (please also refer to the state shown in Figure 9 , during the water source opening process, the water flow can be changed by the different rotation amplitude of the handle, on the contrary, if the handle is turned back, the water passage hole (41) of the movable valve plate (40) will again avoid the flow-through hole (51) of the fixed valve plate (50) (such as Figures 3 to 6 ), so that the water source can be blocked by the misplacement of the movable valve plate (40) and the fixed valve plate (50), so that the water source can be closed again.

[0043] Through the structure of the above specific embodiments, the following benefits can be obtained: (1) a limiting pin (21) is arranged on the valve rod (20), so that the limiting pin (21) can be rotated with the valve rod (20) in the rotating path (14), and the rotating angle of the limiting pin (21) is limited by the protrusion of the stop block (13), so that the opening and closing water positions can be accurately positioned (as shown in Figure 8 ), and the water source can be accurately controlled, so as to obtain a precise ceramic control valve with convenience and practicality; (2) the upper edge of the fixed valve plate (50) is provided with a plurality of drain grooves (52), which can timely drain the impurities flowing between the movable valve plate (40) and the fixed valve plate (50), so as to prevent the accumulation of impurities between the movable valve plate (40) and the fixed valve plate (50), and the movable valve plate (40) and the fixed valve plate (50) are not easy to be stuck, and the service life is long; (3) the valve rod (20) can be guided by the limiting flange (15), so that the penetration of the valve rod (20) will not be skewed; (4) the rotating seat (30) is sleeved with the second water stop ring (31), so that the installation of the first water stop ring (22) can play a double protection sealing effect, so that the water source sent into the chamber (11) will not leak from the upper port (12), and the leakage effect is good.

[0044] The above description is only a preferred embodiment of the present application, and cannot limit the scope of the present application; that is, any equivalent changes and modifications made within the scope of the present application are still within the scope of the present application.

Claims

1. A precision ceramic control valve for inlet and outlet water, characterized in that, It comprises: a valve body, a valve stem, a rotating seat, a movable valve plate, a fixed valve plate, and a valve seat, wherein: The valve housing has an internal chamber with an upper port. The valve stem, the rotating seat, the movable valve plate, and the fixed valve plate are sequentially placed into the chamber of the valve housing. The upper port allows the valve stem to pass through the valve housing. Two opposing points on the inner wall of the chamber have protruding blocks, which create two rotation paths inside the valve housing. The upper port has multiple limiting flanges, and the chamber penetrates the valve housing laterally through at least one outlet. The valve stem has a stem body and a drive end, which is connected to the rotating seat. A limiting pin is provided on the stem body, allowing both ends of the limiting pin to extend horizontally out of the stem body. When the valve stem is placed into the valve housing, the stem body can pass through the upper port, and the two ends of the limiting pin extending out of the stem body can be properly accommodated in the two rotation paths. The limiting flange guides the stem body and prevents the stem body from deflecting when it passes through. In addition, at least one first water-stop ring and at least one second water-stop ring are respectively fitted on the outer periphery of the stem body and the rotating seat. The movable valve plate has a water passage hole, and the fixed valve plate has a flow hole. The movable valve plate and the fixed valve plate are stacked and then placed into the chamber of the valve housing, so that the fixed valve plate can be fully locked in the valve housing. The movable valve plate is embedded in the rotating seat. By rotating the valve rod, the movable valve plate is driven to rotate through the rotating seat, which will change the alignment relationship between the water passage hole and the flow hole, so as to control the opening and closing of water or change the water flow rate. Furthermore, the upper edge of the fixed valve plate is provided with several drainage grooves. The drainage grooves are used to discharge impurities flowing between the movable valve plate and the fixed valve plate in a timely manner, so as to prevent impurities from accumulating between the movable valve plate and the fixed valve plate. The valve seat is combined with the valve body to prevent the fixed valve plate, the movable valve plate, the rotating seat and the valve stem placed in the chamber from falling out. The valve seat is provided with a water inlet so that water can be introduced into the chamber from the water inlet.

2. The precision ceramic control valve for inlet and outlet water as described in claim 1, characterized in that, The upper port is provided with an inverted triangular limiting flange.

3. The precision ceramic control valve for inlet and outlet water as described in claim 1, characterized in that, The water passage is a fan-shaped notch that extends laterally through the periphery of the movable valve plate.

4. The precision ceramic control valve for inlet and outlet water as described in claim 1, characterized in that, The flow hole is designed to be fan-shaped.

5. The precision ceramic control valve for inlet and outlet water as described in claim 1, characterized in that, The fixed valve plate is provided with a retaining rib on its periphery, which is used to secure the fixed valve plate in the chamber of the valve body.

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