CN210290840U - Valve body assembly - Google Patents

Abstract

The utility model relates to a valve body subassembly, include: a housing configured in a bell shape, the housing defining an inner cavity and having a receiving portion communicating with the inner cavity and located on a circumferential surface of the housing; a valve cartridge received in the receiving portion, the valve cartridge configured to control a flow rate and a temperature of a fluid in the valve body assembly; the valve body comprises a pipe body connecting piece and a body supporting piece, the pipe body connecting piece and the body supporting piece are constructed into a whole through injection molding, a flow guide hole and a fixing hole are formed in the body supporting piece, the flow guide hole is used for conducting fluid between the pipe body connecting piece and the valve core, and the fixing hole is used for positioning the valve core.

Description

Valve body assembly

Technical Field

The utility model relates to a fluid switch technical field especially relates to a valve body subassembly.

Background

Existing valve body assemblies have valve seats (also referred to as bodies) that are typically cast from metal. Bodies made of metals such as copper have a number of drawbacks that are difficult to overcome. On the one hand, the molding of metal materials requires high mold precision, such as mold opening and closing accuracy, cooperation between molds, avoidance of mold marks and friction marks, and the like. On the other hand, the body manufactured by adopting the metal casting process has the defects of being easily influenced by the size, complicated process engineering, various post-treatment procedures and the like. Such defects often affect the assembly of the valve body assembly, such as inconvenient assembly due to dimensional errors, poor sealing, etc.

In view of the above, those skilled in the art will still seek to design an improved valve body assembly that at least partially overcomes the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide a valve body assembly whereby the above-mentioned disadvantages of the prior art are overcome.

To accomplish the above task, there is provided a valve body assembly comprising: a housing configured in a bell shape, the housing defining an inner cavity and having a receiving portion communicating with the inner cavity and located on a circumferential surface of the housing; a valve cartridge received in the receiving portion, the valve cartridge configured to control a flow rate and a temperature of a fluid in the valve body assembly; the valve body comprises a pipe body connecting piece and a body supporting piece, the pipe body connecting piece and the body supporting piece are constructed into a whole through injection molding, a flow guide hole and a fixing hole are formed in the body supporting piece, the flow guide hole is used for conducting fluid between the pipe body connecting piece and the valve core, and the fixing hole is used for positioning the valve core.

Preferably, the pipe body connector is configured as a plastic member and includes a base integrally formed on the body support and a coupling portion extending from the base and configured in a tubular shape to couple a delivery pipe including an inlet pipe and an outlet pipe.

Preferably, the valve body assembly further comprises a limiting portion, the limiting portion is configured to form a flange extending radially at the joint of the accommodating portion and the housing, a stepped groove is formed on the flange along the axial direction of the accommodating portion, the base of the pipe body connector and the body support form a stepped surface distributed along the edge at one side facing the joint, and the body is abutted against the limiting portion through the stepped surface matching with the stepped groove.

Preferably, the flange is provided with a set of opposite chamfered edges, and the chamfered edges and the stepped grooves are alternately arranged on the flange.

Preferably, the end of the valve core is provided with a fixing piece, and the fixing piece is positioned relative to the body by engaging with the fixing hole.

Preferably, the valve body assembly further includes an upper cover detachably coupled to the receiving portion to press the valve core against the body, wherein the introduction hole and the discharge hole of the valve core are aligned with the pilot holes of the body support, respectively.

Preferably, the draft tube is detachably coupled to the coupling part of the pipe body coupling.

Preferably, the body support has an outer profile dimension greater than an inner profile dimension of the flange, the body entering the receiving portion from the housing with the chamfered edge.

Preferably, a sealing member is disposed between the valve core and the body, and the sealing member is disposed around the guide holes respectively aligned with the guide holes and the guide holes.

Preferably, the fixing part at one end of the valve core is configured as a hook, the fixing hole is configured as a clamping hole, and the valve core is clamped with the body supporting part.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be readily apparent to those skilled in the art from that description or recognized by practicing the invention as described herein, including the detailed description which follows, and the appended drawings.

Drawings

Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a view of the valve body assembly applied to a faucet;

FIG. 2 is a partial view of the valve body assembly of FIG. 1;

FIG. 3 is a perspective view of the valve body assembly;

FIG. 4 is a schematic view of the assembly of the body and housing in the valve body assembly;

FIG. 5 is a cross-sectional view of the housing;

FIG. 6 is a front view of the housing;

FIG. 7 is a bottom perspective view of the body;

FIG. 8 is a perspective view of the body;

FIG. 9 is a rear perspective view of the body;

FIG. 10 is a view of the body support;

FIG. 11 is a bottom view of the body;

FIG. 12 is a front view of the body;

fig. 13 is a side cross-sectional view of the body.

Detailed Description

Reference is now made in detail to the accompanying drawings illustrating exemplary aspects of a valve body assembly according to the present invention. The drawings are provided to present embodiments of the invention, but the drawings are not necessarily to scale of the specific embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all of the drawings or the examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "upper", "lower", and other directional terms, will be understood to have their normal meaning and refer to those directions as they relate to when the drawings are normally viewed. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

As shown in fig. 1-13, the present invention provides a valve body assembly 1, referring to fig. 1-3, the valve body assembly 1 includes a housing 10, a valve core 11 and a body 12, and those skilled in the art can apply the valve body assembly 1 to bathroom taps, kitchen taps, toilet taps, etc. as required, which are not illustrated herein. The valve body assembly 1 will be described in detail below with reference to the accompanying drawings.

In the valve body assembly 1, the housing 10 has a bell shape, and a pipe joint (screw) which may also be called a pin may be detachably connected to a lower portion of the housing 10. The housing 10 has a main body defining an inner cavity 100 and further includes a receiving portion 102 formed with a receiving chamber. The inner cavity 100 is in communication with the receiving cavity, and the receiving portion 102 is located on the circumferential surface of the main body, or the receiving portion 102 can be disposed at an angle relative to the main body, which is usually 90 degrees, but other suitable angles can be selected.

The valve core 11 of the valve body assembly 1 is accommodated in the housing 10, mainly in the accommodating portion 102, and the valve core 11 may be a conventional valve core 11 for controlling flow and temperature, or a valve core 11 with other functions suitable for the present application. In general, hot and cold fluids are introduced into the valve core 11 through the guide holes 122 of the body support 121 as shown in fig. 7 to 8, which will be described in detail later, and then are mixed in the valve core 11 and then flow to the guide holes 122 of the body support 121 through the guide holes of the valve core 11, so that the mixed fluid is introduced to a water nozzle or a shower head or the like used with the valve body assembly 1 through the guide pipe 15 to supply the fluid to a user. The valve body 11 controls the flow rate of the fluid by controlling the cross-sectional area of the fluid passing through the inlet hole and the outlet hole.

As can be seen in fig. 5 and 8, the body 12 includes a tube connector 120 and a body support 121, wherein the tube connector 120 is used to connect a delivery tube 15 (including an inlet tube and an outlet tube through which fluid passes) for the introduction and removal of supply fluid. The body connector 120 is typically made of plastic and the body support 121 is typically of sheet metal construction, such as stainless steel. The pipe body connector 120 and the body support 121 are coupled together by injection molding.

As shown in fig. 9, the pipe body connector 120 includes a base 124 and an engaging portion 125, the base 124 is abutted on a surface of the body support 121 and is combined with the body support 121 by injection molding, so that the resulting body 12 has improved rigidity and strength of the body 12 by the body support 121 included therein, and in the body combined with the body support 121, in addition to forming the base 124, an engaging surface is formed on the other surface of the body support 121 opposite to the base 124, which mainly faces the valve element and forms a corresponding pilot hole and fixing hole corresponding to the body support 121. The joint 125 is tubular and comprises tubular sections joined together at an angle. In the embodiment shown, the pipe sections are arranged at right angles. Referring to fig. 7, the body support 121 is provided with guide holes 122 (e.g., three) and fixing holes 123 (e.g., two). The fixed orifice 123 is used to engage the valve spool 11 to position it, and the pilot orifice 122 is used to communicate fluid between the body connector 120 and the valve spool 11.

This application provides the valve body subassembly 1 of being convenient for installation, simple, the low cost of manufacturing process through body 12 of integrated into one piece manufacturing, and this body 12 structure has solved body 12 among the prior art well and has had the rejection rate height, the technological process is complicated, the high scheduling problem of raw materials cost.

In a preferred embodiment, the valve body assembly 1 further comprises a stop portion 103, as shown in fig. 5. The stopper portion 103 is located at the junction of the accommodating portion 102 and the housing 10 and is in the form of a flange extending in the radial direction with respect to the accommodating cavity of the accommodating portion 102, the flange being provided with a stepped groove 104, the stepped groove 104 being arranged in the axial direction of the accommodating portion 102, formed mainly toward the accommodating portion 102. As shown in fig. 9, the base 124 of the pipe body connector 120 is provided with a step surface 126, the step surface 126 is formed by the body support 121 and the base 124 which are integrally formed, and the step surface 126 is located on the side facing the joint portion 125. The body 12 extends into the accommodating portion 102 from the inner cavity 100 side of the housing 10, and the body 12 abuts against the limiting portion 103 by the fit between the step surface 126 formed on the body 12 and the step groove 104 formed on the flange of the limiting portion 103, so that the body 12 and the housing 10 are assembled.

In addition, to facilitate the mounting of the body 12 to the housing 10, referring again to fig. 5, in a preferred embodiment, a set of chamfered edges 105 are further provided on the limiting portion 103 of the housing 10, more specifically, on the flange. The set of chamfered edges 105 alternate with the stepped grooves 104 formed in the flange. As shown in the drawing, a set of stepped grooves 104 (e.g., two) are arranged oppositely, a set of chamfered edges 105 (two) are arranged oppositely, and the stepped grooves 104 and the chamfered edges 105 are alternately presented on the stopper portion 103 in this order. The chamfered edge 105 on the flange is shown as a plane parallel to the axis of the housing 10, although the chamfered edge 105 is not limited to being disposed in this one direction and may be adjusted as desired.

Further, the chamfered edge 105 is not limited to being provided on the flange of the housing 10. The body 12 may also have a chamfered edge 105, the chamfered edge 105 being arranged at a position corresponding to the chamfered edge 105 on the flange, the chamfered edge 105 being arranged on the body 12, mainly on the body support 121, in a pair of structures designed parallel to each other. The design of the chamfered edge 105 makes the body 12 easier to fit into the housing 10. Of course, the design of the chamfered edge 105 is not limited thereto, and one skilled in the art can appreciate that the chamfered edge 105 may be provided on either the body support 121 or the flange, or both of them, without departing from the scope of the present invention, provided that the assembly requirements of the body 12 and the housing 10 are met.

The provision of the chamfered edge 105 satisfies the requirement that the body 12 is assembled from the inner cavity 100 of the housing 10 to the housing 10, even when the body 12 is assembled with the duct 15 (joined to the joint portion 125 of the pipe body connector 120 on the body 12) into a non-flexible integral piece, when the body 12 is assembled, the base 124 portion of the body support member 121 is inserted into the accommodating portion 102, the whole body 12 is inclined relative to the housing 10, and the body 12 is continuously inclined relative to the housing 10 until another portion of the base 124, which is not inserted into the accommodating portion 102, is inserted into the accommodating portion 102, due to the design of the chamfered edge 105, the base 124 is more easily inserted into the accommodating portion 102, so that the fitting having such a structure can be smoothly assembled with the housing 10.

Referring to fig. 2, the valve core 11 is provided with a fixing member 110 at a side thereof facing the base 124. The fixing member 110 may be designed as pins, and since the body 12, particularly, the body support 121 is arranged with the insertion holes, three insertion holes arranged in a regular triangle on the body support 121 as shown in fig. 10, the fixing member 110 is fixed to the body support 121 by insertion of the corresponding pins thereon, and the valve cartridge 11 is fixed to the body 12. The fit between the pin and the socket may be an interference fit. As shown in fig. 8, two fixing holes are also present on the engagement surface of the body support 121 to engage with the fixing pieces of the valve element.

The fixing member 110 may also be configured as a hook, and the corresponding fixing hole 123 is configured as a hook hole, the hook and the hook hole are matched in shape and size, when the valve core 11 needs to be fixed on the body 12, the hook on the valve core 11 is clipped into the hook hole on the body 12, and when the valve core 11 needs to be detached from the body 12, the hook on the valve core 11 is released from the hook hole on the body 12, thereby achieving simple and efficient assembly.

In addition, to further position the valve spool 11, the valve body assembly 1 further includes an upper cover 13. The upper cover 13 is detachably attached to the accommodating portion 102, for example, by screwing, and the valve body 11 is pressed against the body 12 by the pressure applied from the upper cover 13, while the introduction hole and the discharge hole on the side of the valve body 11 toward the body 12 correspond to and communicate with the pilot hole 122 on the body support 121, respectively. As shown in fig. 7, the body support 121 has three diversion holes 122 on the joint surface, two of which are water inlets and one of which is a water outlet, the water inlets respectively introduce cold fluid and hot fluid, and the mixed water (usually water mixed to a temperature desired by a user by regulation) mixed by the valve core 11 is guided out through the water outlets.

Referring to fig. 9, the draft tube 15 for introducing and discharging fluid is connected to the junction 125 of the tube connector 120. Preferably, the delivery tube 15 including the introduction tube and the delivery tube may be detachably coupled to the coupling portion 125. Such as an inlet tube and an outlet tube, are each threadably engaged to the coupling portion 125. Or the introducer tube and the delivery tube may be connected to the junction 125 by a snap-fit connection. For example, the connection between the flow guide tube 15 and the connection portion 125 may be achieved by clamping the flow guide tube 15 and the connection portion 125, wherein a flange having a notch is disposed on an inner side of the connection portion 125, a slot is disposed on an opposite side of the notch, and a protrusion is disposed on the insertion end of the flow guide tube 15, and when the insertion end of the flow guide tube 15 is inserted into the connection portion 125 through the notch of the flange, the protrusion is rotated to be screwed into the slot again to fix the flow guide tube 15 relative to the connection portion 125. Of course, those skilled in the art will also appreciate that other arrangements for such detachable connections may be used without departing from the scope of the present invention.

As shown in fig. 9, the outer dimension of the body support 121 is larger than the inner dimension of the flange, the body support 121 enters the accommodating portion 102 from the housing 10 by the chamfered edge 105, and the stepped surface 126 formed by the body support 121 and the base 124 can abut against the stepped groove 104 on the mating flange, thereby achieving efficient and convenient assembly of the body 12 and the housing 10.

Referring again to fig. 2, a seal 14 is also provided between the valve cartridge 11 and the body 12. The seals 14 are distributed mainly around the pilot hole 122, and the seals 14 seal their junctions after the pilot hole 122 is aligned with the pilot hole and the pilot hole of the valve element 11, respectively, to prevent undesired fluid leakage.

In particular assembly, the delivery tube 15, such as an inlet tube and an outlet tube, is first coupled to the coupling portion 125 of the body 12, respectively, the body 12 being a one-piece structure after injection molding of the base 124 and the body support 121. After the body 12 and the duct 15 have been assembled, they are inserted into the internal cavity 100 of the housing 10, and then the base 124 of the body 12 is partially inserted into the housing 102 of the housing 10, the body 12 fitted with the duct 15 being more easily inserted into the housing 102 and completely assembled with the housing 10 by means of the chamfered edge 105.

While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified by incorporating any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.

List of reference numerals

1 valve body assembly 120 pipe body connector

10 casing 121 body support

100 inner cavity 122 diversion hole

102 receptacle 123 securing hole

103 limiting part 124 base

104 stepped groove 125 junction

105 chamfered edge 126 step surface

11 valve core 13 upper cover

110 fastener 14 seal

12 flow guide pipe with main body and 15 flow guide pipes

Claims (10)

1. A valve body assembly (1), comprising:

a housing (10), the housing (10) being configured in a bell-jar shape, the housing (10) defining an inner cavity (100) and having a receiving portion (102) communicating with the inner cavity (100) and located on a circumferential surface of the housing (10);

a valve spool (11), the valve spool (11) being received in the receiving portion (102), the valve spool (11) being configured to control a flow rate and a temperature of a fluid in the valve body assembly (1);

a body (12), the body (12) comprising a pipe connector (120) and a body support (121), the pipe connector (120) and the body support (121) being configured as a single piece by injection molding, the body support (121) being provided with a pilot hole (122) and a fixing hole (123), the pilot hole (122) being configured to conduct fluid between the pipe connector (120) and the valve cartridge (11), the fixing hole (123) being configured to position the valve cartridge (11).

2. The valve body assembly (1) of claim 1, wherein the tube body connector (120) is constructed as a plastic member and includes a base (124) and a joint (125), the base (124) being integrally formed on the body support (121), the joint (125) extending from the base (124) and being constructed as a tube to engage a delivery tube (15) including an inlet tube and an outlet tube.

3. The valve body assembly (1) according to claim 2, wherein the valve body assembly (1) further comprises a limiting portion (103), the limiting portion (103) is configured to form a radially extending flange at the junction of the accommodating portion (102) and the housing (10), the flange is provided with a stepped groove (104) arranged along the axial direction of the accommodating portion (102), the base (124) and the body support (121) of the pipe body connector (120) form a stepped surface (126) distributed along the edge on the side facing the junction (125), and the body (12) is abutted against the limiting portion (103) by the stepped surface (126) matching with the stepped groove (104).

4. A valve body assembly (1) as claimed in claim 3, wherein the flange is provided with an opposed set of chamfered edges (105), the chamfered edges (105) alternating with the stepped grooves (104) on the flange.

5. A valve body assembly (1) as claimed in claim 1, wherein the end of the spool (11) is provided with a fixing member (110), the fixing member (110) being positioned relative to the body (12) by engaging the fixing hole (123).

6. The valve body assembly (1) of claim 2, wherein the valve body assembly (1) further comprises an upper cover (13), the upper cover (13) being detachably engaged to the housing (102) to press the valve cartridge (11) against the body (12), wherein the introduction hole and the discharge hole on the valve cartridge (11) are aligned with the pilot holes (122) on the body support (121), respectively.

7. The valve body assembly (1) of claim 6, wherein the delivery tube (15) is removably coupled to the coupling portion (125) of the tube connector (120).

8. Valve body assembly (1) according to claim 4, characterized in that the outer dimensions of the body support (121) are greater than the inner dimensions of the flange, the body (12) entering the housing (102) from the housing (10) with the chamfered edge (105).

9. Valve body assembly (1) according to claim 7, characterized in that a seal (14) is provided between the spool (11) and the body (12), the seal (14) being arranged around the pilot holes (122) aligned with the pilot holes, respectively pilot holes.

10. The valve body assembly (1) of claim 5, wherein the fixing member (110) of one end of the valve element (11) is configured as a hook, the fixing hole (123) is configured as a catch hole, and the valve element (11) is caught with the body support member (121).

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