Angle valve

Abstract

The utility model provides an angle valve which comprises a metal valve body and a plastic valve element detachably arranged in the metal valve body, an installation cavity, an opening, a water inlet and a water outlet are formed in the metal valve body, the opening, the water inlet and the water outlet are communicated with the installation cavity, and a water flow channel is formed in the plastic valve element. The plastic valve element is fixed in the metal valve body in an assembling mode, and when the plastic valve element is damaged or a water channel needs to be cleaned, only the corresponding plastic valve element needs to be detached to be replaced or cleaned; meanwhile, the upper shell body and the lower shell body which are movably connected are directly used as the outer shell of the plastic valve element, a plastic lining used for installing the plastic valve element is omitted, the assembling procedures are reduced, the production cost is reduced, and then the market competitiveness of the angle valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, and particularly to an angle valve. Background Art

[0002] Angle valves are usually installed in a water circuit to open or close the water source inflow of a water outlet device. The currently used angle valves are usually made of brass alloy materials. During long-term use, rusting will occur, resulting in metal pollution such as lead pollution in the water flowing out of them, and thus causing harm to the human body.

[0003] Although there are some lead-free angle valves in the prior art. For example, the utility model patent with the application number 201210004415.2 provides a ceramic valve stem angle valve, which discloses that a plastic layer is arranged inside a metal valve body, and the plastic layer is integrally formed inside the metal valve body to avoid pollution caused by water flowing through the metal valve body. However, this plastic layer is integrally formed by injection molding inside the metal valve body. Not only is the process complex, but once there are injection molding defects during the injection molding process, it is very difficult to remove the internal plastic layer from the metal valve body, resulting in overall scrapping or increased recycling costs. At the same time, due to the different materials, the plastic layer and the metal valve body cannot form a seal, resulting in water leakage between the plastic layer and the metal valve body, and the inside of the metal valve body is also prone to rusting. Another example is the utility model patent with the application number 202023162842.7, which provides an angle valve that discloses a plastic part bushing for installing a plastic part valve core inside the angle valve, and a water passing channel is arranged inside the bushing to allow water not to directly contact the metal body of the angle valve, so as to achieve the purpose of being lead-free. Although the valve core of this method can be disassembled and replaced, it increases the cost of adding a plastic part bushing, and at the same time, adding an installation process also increases the production cost. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide an angle valve to solve the above problems.

[0005] The present utility model adopts the following scheme:

[0006] The present application provides an angle valve, which includes a metal valve body and a plastic valve core detachably arranged inside the metal valve body. An installation cavity is arranged inside the metal valve body, as well as an opening, a water inlet and a water outlet communicated with the installation cavity. A water flow channel is arranged inside the plastic valve core, and a gland is detachably installed at the opening to fix the plastic valve core inside the metal valve body;

[0007] The plastic valve core includes a housing with a connection port and a water outlet nozzle. The water outlet nozzle is arranged in the water outlet and connected to the connection port. The housing includes an upper housing and a lower housing. The upper housing is installed on the upper end of the lower housing to form a control cavity. The lower end of the lower housing extends to the water inlet end of the metal valve body to receive external water and enter the water flow channel.

[0008] The water flow channel enters from the lower housing, passes through the control cavity, and then flows out from the water outlet nozzle.

[0009] The plastic valve core further includes a control member and a movable valve plate arranged in the control cavity. The control member protrudes outwards from the opening of the metal valve body after passing through the upper housing for the user to operate. The movable valve plate opens or closes the water flow channel under the action of the control member.

[0010] Further, the connection port is arranged on the side of the upper housing. The water outlet nozzle is arranged in the opening and inserted into the connection port to limit the upward movement of the plastic valve core.

[0011] Further, a limiting portion is arranged on the lower housing, and a clamping portion cooperating with the limiting portion is arranged in the inner cavity of the metal valve body.

[0012] Further, the lower end of the lower housing extends to the water inlet end face of the metal valve body. Under the action of the sealing member, external water directly enters the water flow channel from the lower end of the lower housing without contacting the metal valve body.

[0013] Further, the upper housing and the lower housing are detachably installed together through a sealing member.

[0014] Further, the upper housing and the lower housing are movably connected by a buckle.

[0015] Further, a sealing ring is arranged between the lower end of the lower housing and the inner side of the water inlet end of the metal valve body.

[0016] By adopting the above technical solutions, the following technical effects can be achieved by the utility model:

[0017] The plastic valve core is fixed in the metal valve body by an assembly method. When the plastic valve core is damaged or the water channel needs to be cleaned, only the corresponding plastic valve core needs to be disassembled for replacement or cleaning. At the same time, the directly movably connected upper housing and lower housing are used as the outer shell of the plastic valve core, eliminating a plastic bushing for installing the plastic valve core, reducing the assembly process, lowering the production cost, and thus enhancing the market competitiveness of the angle valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of an angle valve according to an embodiment of the present utility model;

[0020] Figure 2 It is a schematic exploded structure diagram of an angle valve according to an embodiment of the present utility model;

[0021] Figure 3 It is a schematic structure diagram of the lower housing of an angle valve according to an embodiment of the present utility model;

[0022] Figure 4 It is a schematic structure diagram of the static valve plate of an angle valve according to an embodiment of the present utility model;

[0023] Figure 5 It is a schematic structure diagram of the moving valve plate of an angle valve according to an embodiment of the present utility model;

[0024] Figure 6 It is a schematic structure diagram of the upper housing of an angle valve according to an embodiment of the present utility model;

[0025] Figure 7 It is a schematic diagram of the water outlet nozzle structure of an angle valve according to an embodiment of the present utility model Figure 1 ;

[0026] Figure 8 It is a schematic diagram of the water outlet nozzle structure of an angle valve according to an embodiment of the present utility model Figure 2 ;

[0027] Figure 9 It is a schematic cross-sectional structure diagram of the metal valve body of an angle valve according to an embodiment of the present utility model.

[0028] Icon: operating cap 1, gland 2, upper housing 3, control member 4, moving valve plate 5, static valve plate 6, lower housing 7, metal valve body 8, water outlet nozzle 9, first water outlet hole 10, second water outlet hole 11, water outlet groove 12, closing part 13, connection port 14, positioning wall 15, first step surface 16, abutting wall 17, insertion part 18, second step surface 19, sealing ring 20, operating part 21, connecting part 22, opening 23, water inlet 24, water outlet 25, limiting part 26, clamping part 27. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] Embodiment

[0031] Combined with Figures 1 to 9 As shown, this embodiment provides an angle valve, which includes a metal valve body 8 and a plastic valve core detachably arranged in the metal valve body 8. An installation cavity is provided in the metal valve body 8, as well as an opening 23, a water inlet 24, and a water outlet 25 communicated with the installation cavity. A water flow channel is provided in the plastic valve core, and a gland is detachably installed at the opening to fix the plastic valve core in the metal valve body;

[0032] The plastic valve core includes a housing with a connection port 14 and a water outlet nozzle 9. The water outlet nozzle 9 is arranged in the water outlet 25 and connected to the connection port 14. The housing includes an upper housing 3 and a lower housing 7. The upper housing 3 is installed on the upper end of the lower housing 7 to form a control cavity. The lower end of the lower housing 7 extends to the end of the water inlet 24 of the metal valve body 8 to receive external water and enter the water flow channel;

[0033] The water flow channel enters from the lower housing 7, passes through the control cavity, and then flows out from the water outlet nozzle 9;

[0034] The plastic valve core further includes a control member 4 and a movable valve plate 5 arranged in the control cavity. The control member 4 protrudes outwards from the opening 23 of the metal valve body 8 after passing through the upper housing 3 for the user to operate; the movable valve plate 5 opens or closes the water flow channel under the action of the control member 4.

[0035] The plastic part spool valve core is fixed in the metal valve body 8 by means of assembly. When the plastic part spool valve core is damaged or the water channel needs to be cleaned, only the corresponding plastic part spool valve core needs to be disassembled for replacement or cleaning. At the same time, the upper shell 3 and the lower shell 7 which are movably connected are directly used as the outer shell of the plastic part spool valve core, eliminating a plastic bushing for installing the plastic part spool valve core, reducing the assembly process and the production cost, and thus enhancing the market competitiveness of this angle valve. The upper shell 3 and the lower shell 7 are used as the outer shell of the plastic part spool valve core and are both injection molded separately. Compared with being integrally formed in the metal valve body 8, the process is simple, and when there are injection defects, there is no problem of being difficult to remove from the metal valve body, resulting in overall scrapping or increased recycling cost. The upper shell 3, the lower shell 7 and the water outlet nozzle 9 are all sealed with the metal valve body 8 through sealing rings, which avoids the situation of water seepage after water leakage between the plastic valve core and the metal valve body 8, and also avoids the rusting inside the metal valve body 8.

[0036] Specifically, in this embodiment, as Figure 9 shown, an installation cavity, an opening 23, a water inlet 24 and a water outlet 25 communicating with the installation cavity are provided in the metal valve body 8. The plastic valve core includes an upper shell 3 and a lower shell 7. The upper shell 3 is installed on the upper end of the lower shell 7 and directly forms a control cavity for installing a control component. As Figure 1 and Figure 2 shown, the control component includes a static valve plate 6 arranged on the upper end face of the lower shell 7, a dynamic valve plate 5 arranged on the static valve plate 6, and a control member 4 for controlling the movement of the dynamic valve plate 5. As Figure 1 and Figure 3 shown, two first water outlet holes 10 are provided at the upper end of the lower shell 7, and the upper end face is located below the axis of the water outlet channel. As Figure 4 and Figure 5 shown, second water outlet holes 11 adapted to the first water outlet holes 10 are provided on the static valve plate 6. An outlet groove 12 for communicating the second water outlet holes 11 and the water outlet channel and a closing portion 13 for closing the second water outlet holes 11 are provided on the dynamic valve plate 5. By driving the dynamic valve plate 5 to rotate through an operating member, the outlet groove 12 and the closing portion 13 can correspond to the second water outlet holes 11, so as to realize the on-off of the water outlet channel and the water inlet channel.

[0037] A connection port 14 is provided on the side of the upper housing 3, and a water outlet nozzle 9 detachably disposed in the water outlet 25 and connected to the connection port 14; after the water outlet nozzle 9 is inserted into the connection port 14, the upper housing 3 restricts the upward movement of the lower housing 7. A positioning wall 15 protrudes outward from the outer periphery of the connection port 14, and a first step surface 16 is provided inside the positioning wall 15. One end of the water outlet nozzle 9 is screwed to the water outlet 25, and the other end is provided with a plug-in portion 18 adapted to the connection port 14; a second step surface 19 abutting against the end surface of the positioning wall 15 is provided outside the plug-in portion 18; after the water outlet nozzle 9 is assembled to the water outlet 25, a seal is formed between the first step surface 16 and the second step surface 19 through a sealing ring 20 for end and side sealing. A plurality of abutting walls 17 abutting against the inner wall of the installation cavity are provided on the side of the upper housing 3, and the abutting walls 17 are integral ribs to prevent the plastic valve core from shaking inside the metal valve body 8. An operation portion 21 for tool operation is provided on the water flow channel of the water outlet nozzle 9 to facilitate screwing the water outlet nozzle 9 to the water outlet section by a tool; and a connection portion 22 for connecting to an external pipeline is provided on the outer section of the operation portion 21.

[0038] The lower end of the lower housing 7 extends to the end of the water inlet 24 of the metal valve body 8 to receive external water into the water flow channel, and the lower end of the lower housing 7 extends to the end surface of the water inlet 24 of the metal valve body 8. Under the action of the seal, external water directly enters the water flow channel from the lower end of the lower housing 7 without contacting the metal valve body 8. A limiting portion 26 is provided on the lower housing 7, and a clamping portion 27 cooperating with the limiting portion 26 is provided in the inner cavity of the metal valve body 8. The upper housing 3 and the lower housing 7 are detachably installed together by a buckle and are side-sealed by a sealing ring 20. When the valve piece of the control assembly wears and causes the valve core to fail, the upper housing 3 and the lower housing 7 can also be directly disassembled and assembled to replace the internal valve piece. A sealing ring is provided between the inner side of the lower end of the lower housing 7 and the end of the water inlet 24 of the metal valve body 8. The plastic valve core is fixed in the metal valve body 8 by a gland 2 screwed to the opening 23; an operation cap 1 is connected to the control for easy user operation.

[0039] The following specifically describes the assembly method of the angle valve, including the following steps:

[0040] The first step: Invert the upper housing 3, sequentially assemble the control member 4 and the moving valve 5, and then assemble the upper housing 3 and the lower housing 7 to complete the assembly of the plastic valve core;

[0041] The second step: Install the plastic valve core into the metal valve body 8;

[0042] Third step: First, insert the water outlet nozzle 9 into the water outlet 25 and connect it to the connection port 14, and then screw the gland 2 onto the installation opening 23 of the metal valve body 8 to fix the plastic valve core; or first screw the gland 2 onto the installation opening 23 of the metal valve body 8 to fix the plastic valve core, and then insert the water outlet nozzle 9 into the water outlet 25 and connect it to the connection port 14;

[0043] Fourth step: Install the operation cap 1 on the control part 4.

[0044] Directly use the movably connected upper housing 3 and lower housing 7 as the outer shell of the plastic valve core, eliminating one plastic part bushing for installing the plastic valve core, reducing the assembly process, lowering the production cost, and thus enhancing the market competitiveness of this angle valve.

[0045] It should be noted that the static valve plate 6 is not necessary, and the upper end of the lower housing 7 can also be used as the static valve plate. If there is a static valve plate, in the first step, invert the upper housing 3, sequentially assemble the control part 4, the moving valve 5 and the static valve plate 6, and then assemble the upper housing 3 and the lower housing 7 to complete the assembly of the plastic part valve core.

[0046] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0049] In the present utility model, unless otherwise clearly stipulated and defined, the terms "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. An angle valve, comprising a metal valve body and a plastic valve core detachably arranged in the metal valve body, wherein the metal valve body is provided with an installation cavity, an opening, a water inlet and a water outlet communicating with the installation cavity, and a water flow channel is provided in the plastic valve core; a gland is detachably installed at the opening to fix the plastic valve core in the metal valve body, characterized in that: The plastic valve core comprises a shell provided with a connection port and a water outlet nozzle, the water outlet nozzle is arranged in the water outlet and connected to the connection port, the shell comprises an upper shell and a lower shell, the upper shell is mounted on the upper end of the lower shell and forms a control chamber, and the lower end of the lower shell extends to the water inlet end of the metal valve body to receive external water to enter the water flow channel; The water flow channel enters from the lower shell, passes through the control chamber and flows out from the water outlet; The plastic valve core also includes a control member and a movable valve plate arranged in the control cavity. After the control member passes through the upper shell, it protrudes outward from the opening of the metal valve body for user operation; the movable valve plate opens or closes the water flow channel under the action of the control member.

2. The angle valve according to claim 1, characterized in that: The connecting port is arranged on the side of the upper shell, and the water outlet is arranged in the opening and installed in the connecting port to limit the upward movement of the plastic valve core.

3. The angle valve according to claim 1, characterized in that: A limiting portion is provided on the lower shell body, and a clamping portion cooperating with the limiting portion is provided in the inner cavity of the metal valve body.

4. The angle valve according to claim 1, characterized in that: The lower end of the lower shell extends to the water inlet end face of the metal valve body. Under the action of the seal, external water directly enters the water flow channel from the lower end of the lower shell without contacting the metal valve body.

5. The angle valve according to claim 1, characterized in that: The upper shell and the lower shell are detachably mounted together via a sealing member.

6. The angle valve according to claim 5, characterized in that: The upper shell and the lower shell are movably connected via buckles.

7. The angle valve according to claim 1, characterized in that: A sealing ring is provided at the lower end of the lower shell body and the inner side of the water inlet end of the metal valve body.

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