Angle valve and assembly method

Abstract

An angle valve and an assembly method. The angle valve comprises a plastic valve core, wherein the valve core comprises a housing provided with a connection port (14), and a water output nozzle (9); the housing comprises an upper housing (3) and a lower housing (7), wherein the upper housing (3) is mounted to an upper end portion of the lower housing (7) and forms a control cavity; a lower end portion of the lower housing (7) extends to an end portion of a water inlet (24) of a metal valve body to receive external incoming water into a water flow channel; and the plastic valve core is fixed in the metal valve body by means of assembly. When the plastic valve core is damaged or a water channel is required to be cleaned, only the corresponding plastic valve core is required to be disassembled for replacement or cleaning. In addition, the upper housing (3) and the lower housing (7), which are movably connected, are directly used as the housing of the plastic valve core, and a plastic bushing for mounting the plastic valve core is omitted, thereby reducing the number of assembly processes and production costs.

Description

An angle valve and assembling method TECHNICAL FIELD

[0001] The present application relates to the technical field of valve core, in particular to an angle valve and assembling method. BACKGROUND

[0002] The angle valve is usually arranged in a waterway and used for opening or closing the water source inflow of a water outlet device. The angle valve currently used is usually made of brass alloy material. In long-term use, the brass alloy material may be rusted, thereby causing metal pollution such as lead pollution to the water outlet therein, and further causing harm to human body.

[0003] Although some lead-free angle valves appear in the prior art, for example, the utility model patent with the application number 201210004415.2 provides a ceramic valve rod angle valve. The ceramic valve rod angle valve discloses that a plastic layer is arranged in a metal valve body and integrally formed in the metal valve body to avoid water pollution caused by the water flowing through the metal valve body. However, the plastic layer is integrally formed in the metal valve body by injection molding. The process is complex. Moreover, once injection molding defects occur in the injection molding process, the internal plastic layer is difficult to be removed from the metal valve body, resulting in the whole being scrapped or the recycling cost being increased. At the same time, due to the difference in material, the plastic layer and the metal valve body cannot form a seal, resulting in water seepage and leakage between the plastic layer and the metal valve body, and the metal valve body is also prone to rust. For example, the utility model patent with the application number 202023162842.7 provides an angle valve. The angle valve discloses that a plastic part bushing for mounting a plastic part valve core is arranged in the angle valve. A water passage is arranged in the bushing to allow the water not to directly contact the metal body of the angle valve, thereby achieving the purpose of lead-free. Although the valve core can be replaced in this way, the cost of the plastic part bushing is increased, and the production cost is also increased due to the additional installation process.

[0004] SUMMARY

[0005] Therefore, the purpose of the present application is to provide an angle valve and assembling method to solve the above problems.

[0006] The present application adopts the following scheme:

[0007] The present application provides an angle valve, which comprises a metal valve body and a plastic valve core detachably arranged in the metal valve body. The metal valve body is provided with a mounting cavity, an opening, a water inlet and a water outlet which are in communication with the mounting cavity. The plastic valve core is provided with a water flow passage,

[0008] The plastic valve core comprises a shell provided with a connecting port and a water outlet nozzle, the water outlet nozzle is arranged in the water outlet port and connected with the connecting 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 cavity, and the lower end of the lower shell extends to the water inlet end of the metal valve body to receive external water into the water flow channel;

[0009] The water flow channel enters from the lower shell, passes through the control cavity and then flows out from the water outlet nozzle;

[0010] The plastic valve core further comprises a control member arranged in the control cavity and a movable valve plate, the control member protrudes outward from the opening of the metal valve body after passing through the upper shell for being operated by a user, and the movable valve plate opens or closes the water flow channel under the action of the control member.

[0011] Further, the connecting port is arranged on the side surface of the upper shell, and the water outlet nozzle is arranged in the opening and fitted into the connecting port to limit the upward movement of the plastic valve core.

[0012] Further, the lower shell is provided with a limiting portion, and the inner cavity of the metal valve body is provided with a clamping portion matched with the limiting portion.

[0013] Further, the lower end of the lower shell extends to the water inlet end surface of the metal valve body, and under the action of a sealing member, the external water directly enters the water flow channel from the lower end of the lower shell without contacting the metal shell.

[0014] Further, the upper shell and the lower shell are detachably mounted together through a sealing member.

[0015] Further, the upper shell and the lower shell are movably connected through buckling.

[0016] Further, the lower end of the lower shell and the inner side of the water inlet end of the metal valve body are provided with a sealing member.

[0017] The utility model further provides an assembly method of the angle valve, which comprises the following steps:

[0018] The first step is to invert the upper shell, assemble the control member and the movable valve plate in sequence, then assemble the upper shell and the lower shell, and complete the assembly of the plastic valve core;

[0019] The second step is to assemble the plastic valve core into the metal valve body.

[0020] Further, after the second step is completed, the following steps are further included:

[0021] S1: Assemble the water outlet nozzle into the water outlet port and connect it with the connecting port.

[0022] By adopting the technical scheme, the application can achieve the following technical effects:

[0023] The plastic valve core is fixed in the metal valve body in an assembled manner, when the plastic valve core is damaged or the water channel needs to be cleaned, the corresponding plastic valve core can be disassembled and replaced or cleaned, the upper shell and the lower shell which are movably connected are directly used as the shell of the plastic valve core, one plastic bushing for mounting the plastic valve core is saved, the assembly process is reduced, the production cost is reduced, and the market competitiveness of the angle valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0025] Fig. 1 is a cross-sectional structure schematic diagram of an angle valve according to an embodiment of the application;

[0026] Fig. 2 is an exploded structure schematic diagram of an angle valve according to an embodiment of the application;

[0027] Fig. 3 is a lower shell structure schematic diagram of an angle valve according to an embodiment of the application;

[0028] Fig. 4 is a static valve plate structure schematic diagram of an angle valve according to an embodiment of the application;

[0029] Fig. 5 is a dynamic valve plate structure schematic diagram of an angle valve according to an embodiment of the application;

[0030] Fig. 6 is an upper shell structure schematic diagram of an angle valve according to an embodiment of the application;

[0031] Fig. 7 is a water outlet nozzle structure schematic diagram one of an angle valve according to an embodiment of the application;

[0032] Fig. 8 is a water outlet nozzle structure schematic diagram two of an angle valve according to an embodiment of the application;

[0033] Fig. 9 is a cross-sectional structure schematic diagram of a metal valve body of an angle valve according to an embodiment of the application.

[0034] Icon: operating cap 1, cover 2, upper shell 3, control 4, moving valve plate 5, static valve plate 6, lower shell 7, metal valve body 8, water outlet nozzle 9, first water outlet hole 10, second water outlet hole 11, water outlet groove 12, sealing part 13, connecting port 14, positioning wall 15, first step surface 16, abutting wall 17, plug-in 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 DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0036] EMBODIMENT

[0037] In combination with FIGS. 1-9, the present embodiment provides an angle valve, which comprises a metal valve body 8 and a plastic valve core detachably arranged in the metal valve body 8. The metal valve body 8 is provided with an installation cavity, and an opening 23, a water inlet 24 and a water outlet 25 in communication with the installation cavity. The plastic valve core is provided with a water flow channel,

[0038] The plastic valve core comprises a housing provided with a connecting port 14 and a water outlet nozzle 9. The water outlet nozzle 9 is arranged in the water outlet 25 and connected with the connecting port 14. The housing comprises an upper shell 3 and a lower shell 7. The upper shell 3 is mounted on the upper end of the lower shell 7 and forms a control cavity. The lower end of the lower shell 7 extends to the water inlet 24 end of the metal valve body 8 to receive external water into the water flow channel.

[0039] The water flow channel enters from the lower shell 7, passes through the control cavity and flows out from the water outlet nozzle 9.

[0040] The plastic valve core further comprises a control 4 and a moving valve plate 5 arranged in the control cavity. The control 4 protrudes outward from the opening 23 of the metal valve body 8 after passing through the upper shell 3 for user operation. The moving valve plate 5 opens or closes the water flow channel under the action of the control 4.

[0041] The plastic valve core is fixed in the metal valve body 8 in an assembled manner. When the plastic valve core is damaged or needs to be cleaned, the corresponding plastic valve core can be disassembled and replaced or cleaned. Meanwhile, the upper shell 3 and the lower shell 7 are directly connected as the outer shell of the plastic valve core, one plastic bushing for installing the plastic valve core is saved, the assembly process is reduced, the production cost is reduced, and the market competitiveness of the angle valve is improved. The upper shell 3 and the lower shell 7 are separately injection molded as the outer shell of the plastic valve core. Compared with being integrally formed in the metal valve body 8, the process is simple, and when an injection defect occurs, the plastic valve core cannot be removed from the metal valve body, which causes the whole to be scrapped or the recycling cost to increase. The upper shell 3 and the lower shell 7 and the water outlet nozzle 9 are sealed with the metal valve body 8 through a sealing ring, which avoids water seepage when the plastic valve core and the metal valve body 8 leak, and avoids rust in the metal valve body 8.

[0042] Specifically, in the present embodiment, as shown in FIG. 9, the metal valve body 8 is provided with an installation cavity, and an opening 23, a water inlet 24 and a water outlet 25 communicated with the installation cavity. The plastic valve core includes an upper shell 3 and a lower shell 7, and 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 assembly. As shown in FIGS. 1 and 2, the control assembly 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 piece 4 for controlling the action of the dynamic valve plate 5. As shown in FIGS. 1 and 3, the lower shell 7 is provided with two first water outlets 10 on the upper end, and the upper end face is arranged below the axis of the water outlet channel. As shown in FIGS. 4 and 5, the static valve plate 6 is provided with a second water outlet hole 11 matched with the first water outlet hole 10, the dynamic valve plate 5 is provided with a water outlet groove 12 communicated with the second water outlet hole 11 and the water outlet channel, and a closing part 13 capable of closing the second water outlet hole 11. By rotating the dynamic valve plate 5 through the operating piece, the water outlet groove 12 and the closing part 13 can correspond to the second water outlet hole 11, so as to realize the on-off of the water outlet channel and the water inlet channel.

[0043] The side of the upper shell 3 is provided with a connecting port 14, and a water outlet nozzle 9 which is detachably arranged in the water outlet port 25 and connected with the connecting port 14; after the water outlet nozzle 9 is arranged in the connecting port 14, the upper shell 3 limits the upward movement of the lower shell 7. The outer periphery of the connecting port 14 is outwardly protrudingly provided with a positioning wall 15, and the positioning wall 15 is internally provided with a first step surface 16. One end of the water outlet nozzle 9 is screwed to the water outlet port 25, and the other end is provided with a plug-in part 18 which is adapted to the connecting port 14; the plug-in part 18 is externally provided with a second step surface 19 which abuts against the end surface of the positioning wall 15; after the water outlet nozzle 9 is assembled in the water outlet port 25, the first step surface 16 and the second step surface 19 form the end surface and side surface sealing through a sealing ring 20. The side of the upper shell 3 is provided with a plurality of abutting walls 17 which abut against the inner wall of the mounting cavity, and the abutting walls 17 are integral annular ribs so as to avoid the shaking of the plastic valve core in the metal valve body 8. The water outlet flow channel of the water outlet nozzle 9 is provided with an operating part 21 for tool operation so as to facilitate the screwing of the water outlet nozzle 9 to the water outlet section through a tool; and the outer section of the operating part 21 is provided with a connecting part 22 for connecting with an external pipeline.

[0044] The lower end of the lower shell 7 extends to the end of the water inlet port 24 of the metal valve body 8 to receive the external incoming water into the water flow channel, and the lower end of the lower shell 7 extends to the end surface of the water inlet port 24 of the metal valve body 8, and under the action of a sealing member, the external water directly enters the water flow channel from the lower end of the lower shell 7 without contacting the metal shell. The lower shell 7 is provided with a limiting part 26, and the inner cavity of the metal valve body 8 is provided with a clamping part 27 which cooperates with the limiting part 26. The upper shell 3 and the lower shell 7 are detachably mounted together through buckling, and side sealing is performed through the sealing ring 20. When the valve core is failed due to the wear of the valve plate of the control assembly, the upper shell 3 and the lower shell 7 can also be directly disassembled for replacement of the internal valve plate. The lower end of the lower shell 7 and the inner side of the end of the water inlet port 24 of the metal valve body 8 are provided with a sealing member. The plastic valve core is fixed in the metal valve body 8 through a gland 2 which is screwed at the opening 23; the control is connected with an operating cap 1 to facilitate the operation of a user.

[0045] An assembling method of a corner valve, comprising the following steps:

[0046] The first step is to invert the upper shell 3, sequentially assemble the control member 4 and the moving valve 5, and then assemble the upper shell 3 and the lower shell 7 to complete the assembly of the plastic valve core;

[0047] The second step is to assemble the plastic valve core into the metal valve body 8;

[0048] Third step: first, install the water outlet nozzle 9 into the water outlet 25 and connect with the connecting port 14, then screw the gland 2 at the installation opening 23 of the metal valve body 8 to fix the plastic valve core; or first, screw the gland 2 at the installation opening 23 of the metal valve body 8 to fix the plastic valve core, then install the water outlet nozzle 9 into the water outlet 25 and connect with the connecting port 14;

[0049] Fourth step: install the operating cap 1 on the control member 4.

[0050] Directly use the movable connecting upper shell 3 and the lower shell 7 as the outer shell of the plastic valve core, one plastic bushing for rotating the plastic valve core is saved, the assembly process is reduced, the production cost is lowered, and the market competitiveness of the angle valve is improved.

[0051] It should be noted that the static valve plate 6 is not necessary, and the upper end of the lower shell 7 can also be used as a static valve plate. If there is a static valve plate, the upper shell 3 is inverted in the first step, the control member 4, the dynamic valve 5 and the static valve plate 6 are sequentially assembled, and then the upper shell 3 and the lower shell 7 are assembled to complete the assembly of the plastic valve core.

[0052] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solution falling within the concept of the present application belongs to the protection scope of the present application.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0055] In the present application, unless specifically stipulated and limited otherwise, the terms "mounting", "connection", "linking", "fixing" and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal communication of two elements, or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] In the present application, unless specifically stipulated and limited otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Under", "below" and "underneath" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A corner valve comprising a metal valve body and a plastic valve core detachably arranged in the metal valve body, the metal valve body being provided with a mounting cavity, an opening, a water inlet and a water outlet communicating with the mounting cavity, and the plastic valve core being provided with a water flow channel, characterized in that the plastic valve core comprises a housing provided with a connecting port and a water outlet nozzle, the water outlet nozzle is arranged in the water outlet and connected with the connecting port, the housing comprises an upper housing and a lower housing, the upper housing is mounted on the upper end of the lower housing and forms a control cavity, and the lower end of the lower housing extends to the water inlet end of the metal valve body to receive external water into the water flow channel. The water flow channel enters from the lower housing, passes through the control cavity and flows out from the water outlet nozzle. The plastic valve core further comprises a control member and a valve disc arranged in the control cavity, the control member protrudes outward from the opening of the metal valve body after passing through the upper housing for user operation, and the valve disc opens or closes the water flow channel under the action of the control member. The connecting port is arranged on the side surface of the upper housing, and the water outlet nozzle is arranged in the opening and fitted into the connecting port to limit the upward movement of the plastic valve core.

2. The angle valve according to claim 1, characterized in that The lower housing is provided with a limiting portion, and the inner cavity of the metal valve body is provided with a clamping portion matched with the limiting portion.

3. The angle valve according to claim 1, characterized in that The lower end of the lower housing extends to the water inlet end surface of the metal valve body, and under the action of a sealing member, the external water directly enters the water flow channel from the lower end of the lower housing without contacting the metal shell.

4. The angle valve according to claim 1, characterized in that The upper housing and the lower housing are detachably mounted together by a sealing member.

5. The angle valve according to claim 1, characterized in that The upper housing and the lower housing are movably connected by a buckle.

6. The angle valve according to claim 5, characterized in that The lower end of the lower housing and the inner side of the water inlet end of the metal valve body are provided with a seal.

7. The angle valve according to claim 1, characterized in that The method comprises the following steps:

8. A method of assembling the corner valve according to any one of claims 1 to 7, characterized in that, First step: invert the upper housing, assemble the control member and the valve disc in sequence, then assemble the upper housing and the lower housing to complete the assembly of the plastic valve core; Second step: assemble the plastic valve core into the metal valve body. After completing the second step, the following steps are further included:

9. The method of assembling a corner valve of claim 8, wherein, S1: assemble the water outlet nozzle into the water outlet and connect it with the connecting port. ​

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