Miniature knob valve

Abstract

The utility model belongs to the field of valve design, and discloses a miniature knob valve which comprises a valve body and a valve element assembly arranged in a valve cavity of the valve body. The valve element assembly comprises a valve element, a connecting piece, an end socket, a rotary knob, a sealing ring and a limiting piece. The valve element is arranged in the valve cavity. One end of the connecting piece is connected with the top of the valve core; the sealing head is screwed with the end part of the valve cavity; at least one sealing ring is respectively arranged between the sealing head and the valve cavity and between the connecting piece and the sealing head; a limiting groove is formed in the position, located between the end socket and the valve element, of the valve cavity, and the limiting piece is arranged in the limiting groove, arranged on the connecting piece and used for limiting the rotating angle of the connecting piece. High-concentration arrangement of all parts is achieved, the size of the valve can be reduced, and products can be manufactured to be smaller.

Description

Technical Field

[0001] The utility model belongs to the field of valve design, in particular to a micro knob valve. Background Art

[0002] Valves are pipe accessories used to open and close pipes, regulate flow, etc. As the application scope of liquid cooling systems continues to expand, many requirements for valve size reduction due to space constraints are gradually increasing. Therefore, it is worth studying how to miniaturize valves.

[0003] The Chinese patent application with application date of 2023 / 08 / 10 and application number CN202322139345.2 discloses a small flow plug valve, which has the following defects:

[0004] 1. The sealing ring assembly is composed of an upper sealing ring and a lower sealing ring, and is compressed by a compression sleeve. This method of designing the sealing area below the compression sleeve requires increasing the height of the valve body. At the same time, the use of this sealing ring assembly requires compression force, which makes the length and pitch requirements of the thread not too small, and also requires increasing the height of the valve body;

[0005] 2. The positioning boss is arranged at the bottom of the valve cavity. This structure requires the bottom of the valve body to protrude, thereby increasing the height of the valve body.

[0006] Therefore, the existing plug valve has the problem that the concentration between the components is insufficient and the valve cannot be further miniaturized. Based on this, the present application provides a miniature knob valve with better concentration of components. Utility Model Content

[0007] The utility model aims to solve the problem that the existing plug valve has insufficient concentration between various components and cannot further miniaturize the valve. To this end, the utility model provides a miniature knob valve with better concentration of various components.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A miniature knob valve is provided, comprising a valve body and a valve core assembly arranged in a valve cavity of the valve body; the valve core assembly comprises a valve core, a connecting piece, a head, a knob, a sealing ring and a limit piece, wherein: the valve core is arranged in the valve cavity; one end of the connecting piece is connected to the top of the valve core, and the other end passes through the head and is connected to the knob; the head is threadedly connected to the end of the valve cavity; at least one sealing ring is respectively arranged between the head and the valve cavity and between the connecting piece and the head; a limit groove is provided in the valve cavity between the head and the valve core, the limit piece is arranged in the limit groove, and the limit piece is arranged on the connecting piece for limiting the rotation angle of the connecting piece.

[0010] Preferably, the limiting groove is a 270° arc groove, and the limiting member is provided with a 90° flange.

[0011] Preferably, a limiting hole is provided at the center of the limiting member, and the connecting member is plugged into the limiting hole.

[0012] Preferably, the bottom surface of the sealing head contacts the surface of the limiting member or is 0.5 to 2 mm away from the surface of the limiting member.

[0013] Preferably, a receiving cavity capable of receiving the protruding portion of the valve cavity is provided at the bottom of the knob, and the connecting member is connected to the knob via screws.

[0014] Preferably, the outer wall of the knob is also provided with an annular groove and a longitudinal anti-slip groove.

[0015] Preferably, an arrow and a mark indicating the switching direction are provided on the valve body, and an indicating arrow is provided on the top of the knob.

[0016] In a preferred embodiment, the connecting member is further provided with a retaining ring, and the retaining ring is received in a bottom groove of the sealing head.

[0017] In a preferred embodiment, the valve core is a cylindrical valve core, which is provided with a flow channel connected to the water inlet and outlet of the valve body.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model sets the limiter between the valve core and the head, making full use of the space of the valve cavity. At the same time, the sealing ring is set between the head and the valve cavity and between the connecting piece and the head. No additional sealing space is required, which improves the space utilization rate of the valve cavity, thereby realizing a highly centralized arrangement of various components, which is conducive to reducing the size of the valve and making the product more compact.

[0020] 2. The protruding parts of the head and valve body are completely wrapped in the knob, with a delicate and beautiful appearance;

[0021] 3. A cylindrical valve core is used. When the valve is disconnected, one end is subjected to liquid pressure, making the other end more sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0023] Figure 1It is a structural schematic diagram of the miniature knob valve provided by the utility model;

[0024] Figure 2 It is a cross-sectional view of the miniature knob valve provided by the utility model;

[0025] Figure 3 yes Figure 2 A cross-sectional view of the provided miniature knob valve.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] Valve body 1, valve cavity 1.0, arrow and mark 1.1, limit groove 1.01, valve core 2, flow channel 2.0, connecting piece 3, head 4, knob 5, receiving cavity 5.0, annular groove 5.1, longitudinal anti-slip groove 5.2, indicating arrow 5.3, sealing ring 6, limit piece 7, flange 7.1, limit hole 7.2, retaining ring 8, screw 9. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model; the terms "install", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Embodiment: This embodiment provides a miniature knob valve, as shown in the attached Figure 1 and attached Figure 2 As shown, it includes a valve body 1 and a valve core assembly arranged in a valve cavity 1.0 of the valve body. The valve core assembly includes a valve core 2, a connector 3, a head 4, a knob 5, a sealing ring 6 and a stopper 7, wherein:

[0033] The valve core 2 is arranged in the valve cavity 1.0. Preferably, the valve core 2 is a cylindrical valve core, which is provided with a flow channel 2.0 connected to the water inlet and outlet of the valve body 1. When the valve is disconnected, the other end is better sealed because one end is subjected to the pressure of the liquid.

[0034] One end of the connector 3 is connected to the top of the valve core 2, and the other end passes through the cover 4 and is connected to the knob 5. Preferably, the connector 3 and the knob 5 of this embodiment are connected by screws 9. Preferably, the connector 3 is threadedly connected to the screw hole on the valve core 2. In other embodiments, the connector is plugged into the limiting hole in the valve core (see the limiting hole of the limiting member), and the bottom of the connector is provided with a plug connector matching the limiting hole.

[0035] The sealing head 4 is threadedly connected to the end of the valve cavity 1.0; at least one sealing ring 6 is provided between the sealing head 4 and the valve cavity 1.0 and between the connecting piece 3 and the sealing head 4, respectively, for sealing the valve body.

[0036] The valve cavity 1.0 is provided with a limit groove 1.01 between the sealing head 4 and the valve core 2, the limit member 7 is arranged in the limit groove 1.01, and the limit member 7 is arranged on the connecting member 3 to limit the rotation angle of the connecting member. Figure 3 As shown, the limit groove 1.01 is a 270° arc groove, and a 90° flange 7.1 is provided on the limit member 7. This design realizes a 90° rotation range of the knob to control the opening or closing of the fluid.

[0037] Preferably, as attached Figure 3 As shown, a limiting hole 7.2 is provided at the center of the limiting member 7, and the connecting member 3 is plugged into the limiting hole 7.2.

[0038] Preferably, as attached Figure 2As shown, the bottom surface of the sealing head 4 is in contact with the surface of the stopper 7 or is 0.5 to 2 mm away from the surface of the stopper 7. This design can effectively limit the position of the stopper.

[0039] Further, as attached Figure 2 As shown, the connector 3 is further provided with a retaining spring 8, which is received in the bottom groove of the sealing head 4. The retaining spring is used to limit the axial displacement of the connector.

[0040] Preferably, as attached Figure 2 As shown, a receiving cavity 5.0 capable of receiving the protruding portion of the valve cavity 1.0 is provided at the bottom of the knob 5. This design allows the protruding portion of the head and the valve body to be completely wrapped in the knob, and the appearance is exquisite and beautiful.

[0041] Preferably, as attached Figure 1 As shown, the outer wall of the knob 5 is also provided with an annular groove 5.1 and a longitudinal anti-slip groove 5.2, which can increase the comfort of operation control.

[0042] Preferably, as attached Figure 1 As shown, the valve body 1 is provided with an arrow and a mark 1.1 indicating the switch direction, and the top of the knob 5 is provided with an indicating arrow 5.3, which facilitates the observation of the on-off status of the knob valve and also ensures the accuracy of the operation.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A miniature knob valve, comprising a valve body and a valve core assembly arranged in a valve cavity of the valve body; characterized in that: The valve core assembly includes a valve core, a connector, a head, a knob, a sealing ring and a limiter, wherein: The valve core is arranged in the valve cavity; One end of the connecting piece is connected to the top of the valve core, and the other end passes through the sealing head and is connected to the knob; The sealing head is threadedly connected to the end of the valve cavity; At least one sealing ring is provided between the sealing head and the valve cavity and between the connecting piece and the sealing head; The valve cavity is provided with a limiting groove between the sealing head and the valve core, the limiting member is arranged in the limiting groove, and the limiting member is arranged on the connecting member for limiting the rotation angle of the connecting member.

2. The micro knob valve according to claim 1, characterized in that: The limiting groove is a 270° arc groove, and the limiting member is provided with a 90° flange.

3. The micro knob valve according to claim 2, characterized in that: A limiting hole is provided at the center of the limiting member, and the connecting member is plugged into the limiting hole.

4. The micro knob valve according to claim 1, characterized in that: The bottom surface of the sealing head contacts the surface of the limiting member or is 0.5 to 2 mm away from the surface of the limiting member.

5. The micro knob valve according to claim 1, characterized in that: The connecting piece is also provided with a retaining ring, and the retaining ring is received in the bottom groove of the sealing head.

6. The micro knob valve according to claim 1, characterized in that: The bottom of the knob is provided with a receiving cavity capable of receiving the protruding portion of the valve cavity, and the connecting member is connected to the knob via screws.

7. The micro knob valve according to claim 6, characterized in that: The outer wall of the knob is also provided with an annular groove and a longitudinal anti-slip groove.

8. The micro knob valve according to claim 6, characterized in that: The valve body is provided with an arrow and a mark indicating the switch direction, and the top of the knob is provided with an indicating arrow.

9. The micro knob valve according to any one of claims 1 to 8, characterized in that: The valve core is a cylindrical valve core, in which a flow channel connected with the water inlet and outlet of the valve body is arranged.

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