CN219606190U

CN219606190U - Bypass valve

Info

Publication number: CN219606190U
Application number: CN202320711938.9U
Authority: CN
Inventors: 唐润秋
Original assignee: Vitesco Automotive Wuhu Co Ltd
Current assignee: Vitesco Automotive Wuhu Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-29
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a bypass valve which is used for controlling the on-off of an interface channel and comprises a metal core and a valve rod, wherein the valve rod is arranged on the metal core; a wire wound around the metal core; the shell is coated outside the metal core and the wire, and the valve rod extends out of the shell; a valve head having one end thereof in sealing connection with the housing end face, the valve head being configured to magnetically attract the valve stem when the lead is energized, so as to separate the other end of the valve head from the mouthpiece passage; and when the wire is powered off, the other end of the valve head seals the interface passage. The utility model has simple structure, greatly reduces the number of required parts and reduces the production cost.

Description

Bypass valve

Technical Field

The utility model relates to the field of valves, in particular to a bypass valve.

Background

Solenoid valves are electromagnetic controlled industrial equipment, are automatic basic elements for controlling fluid, and are widely used in various applications, and different purposes require valves with different functions. The bypass valve is generally used in the fields of controlling the switch of a bypass pipeline, and when equipment such as a pressure reducing valve and a steam trap is damaged or needs to be replaced and maintained, the equipment is isolated by opening the bypass valve or a main pipeline is closed, and the bypass pipeline is opened to enable the equipment to continue to operate. The bypass valve generally has more than 20 parts at present, and has relatively complex structure and high part cost and manufacturing cost.

Disclosure of Invention

The utility model aims to solve the problems of more parts, complex structure and high manufacturing cost of the existing bypass valve. The utility model provides a bypass valve which is simple in structure, greatly reduces the number of required parts and reduces the production cost.

In order to solve the technical problem, an embodiment of the present utility model discloses a bypass valve for controlling on-off of an interface channel, including:

a metal core having a valve stem;

a wire wound around the metal core;

the shell is coated outside the metal core and the wire, and the valve rod extends out of the shell;

a valve head having one end thereof in sealing connection with the housing, the valve head being configured to magnetically attract the valve stem when the wire is energized, so as to separate the other end of the valve head from the mouthpiece passage; and when the wire is powered off, the other end of the valve head seals the interface passage.

By adopting the technical scheme, the metal core and the lead are directly coated by the shell, so that the structural design of the solenoid is improved, the use of other parts is reduced, and the number of parts and the manufacturing cost of the bypass valve are greatly reduced.

As a specific embodiment, the valve further comprises an elastic piece, one end of the elastic piece is abutted against the shell, and the other end of the elastic piece is abutted against the valve head.

As a specific embodiment, the valve head includes:

one end of the valve head shell is attached to the shell, and the other end of the valve head shell is used for being attached to the end face of the interface channel;

the framework is arranged in the valve head shell and can magnetically attract or separate from the valve rod so that the other end of the valve head is separated from or attached to the end face of the interface channel.

As one specific embodiment, the valve head housing is made of rubber.

As a specific embodiment, the valve head housing comprises:

the first sealing end is in sealing connection with the end face of the shell;

the first sealing end and the second sealing end are arranged at intervals along the moving direction of the framework;

the elastic layer is arranged between the first sealing end and the second sealing end, and the elastic layer can stretch and retract along the moving direction of the framework.

As a specific embodiment, the skeleton includes:

the flange end face is used for being connected with the second sealing end;

the boss is connected with the end face of the flange; the boss is provided with a guide hole which is used for being in sliding fit with the valve rod;

the outer side wall of the boss, the inner side wall of the valve head shell and the flange end face enclose to form a valve head cavity.

As a specific embodiment, a lubricating coating is provided in the pilot hole.

As a specific implementation mode, the elastic piece is sleeved on the boss, and the other end of the elastic piece is abutted against the end face of the flange.

As a specific embodiment, the second sealing end and the flange end face are provided with vent holes so that the interface passage is communicated with the valve head cavity.

As a specific implementation mode, a connector used for being connected with a power supply is arranged on the shell, and leads at two ends of the lead are respectively communicated with the connector.

Drawings

FIG. 1 shows a schematic view of the overall structure of a bypass valve according to an embodiment of the present utility model;

FIG. 2 shows a cross-sectional view of a bypass valve according to an embodiment of the present utility model;

in the figure: 100-bypass valve, 110-housing, 120-coil, 130-core, 131-valve stem, 140-spring, 150-valve head, 151-backbone, 1511-pilot hole, 1512-vent, 152-valve head housing, 1521-first sealing end, 1522-spring layer, 1523-second sealing end, 153-valve head cavity, 200-interface channel, 210-first channel, 220-second channel.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

The present utility model discloses a bypass valve 100, referring to fig. 1 and 2, the bypass valve 100 includes a metal core, a wire, a housing 110, a valve head 150, and an elastic member 140. The wire is wound on the metal core, the shell 110 is coated outside the metal core and the wire coil 120, and the metal core and the wire coil 120 are encapsulated in the shell 110. The metal core has a valve stem 131, the valve stem 131 extending through the housing 110 in a vertical direction to the outside of the housing 110, the valve stem 131 acting as an attracting portion of the metal core. The elastic member 140 is abutted against the housing 110 and the valve head 150 at both ends in the first direction (as shown in the X direction in fig. 1 and 2), and the elastic member 140 is exemplified as a spring. Further, a connector pin needle for connecting with a power supply is arranged on the shell 110, and two leads of the lead wire are respectively communicated with the connector pin needle.

As shown in fig. 2, the bypass valve 100 is used to control the opening and closing of the interface passage 200. The interface channel 200 includes a first channel 210 and a second channel 220, where an axial direction of the first channel 210 is parallel to the first direction, and the second channel 220 is disposed at one side of the first channel 210 and forms an included angle with the first channel 210. The bypass valve 100 controls the opening and closing of the first passage 210 and the second passage 220 by being hermetically connected to or disconnected from the first passage 210.

Specifically, referring to fig. 2, the valve head 150 is disposed between the housing 110 and the end face of the first channel 210 of the mouthpiece channel 200, and one end of the valve head 150 is sealingly connected to the housing 110 and the end face of the mouthpiece channel 200. That is, in the first direction, one end of the valve head 150 is clamped between the housing 110 and the mouthpiece channel 200. The valve head 150 is configured to magnetically attract the valve stem 131 when the wire is energized to move the other end of the valve head 150 in a first direction toward the valve stem 131 to separate from the end face of the first passage 210, i.e., the bypass valve 100 opens to allow the first passage 210 and the second passage 220 of the mouthpiece passage 200 to communicate. And when the wire is powered off, the elastic element 140 resets, and drives the valve head 150 to move away from the valve rod 131 along the first direction to reset, so that the other end of the valve head 150 is in sealing fit with the end surface of the interface channel 200, namely, the bypass valve 100 is closed, and the first channel 210 and the second channel 220 of the interface channel 200 are disconnected.

As described above, the technical solution of this embodiment is simple in structure, and by directly coating the metal core and the wire with the housing 110, the structural design of the solenoid is improved, the use of other parts is reduced, the structure is simplified, and the manufacturing cost of the bypass valve 100 is reduced.

With continued reference to fig. 1 and 2, the valve head 150 includes a valve head housing 152 and a armature 151 disposed within the valve head housing 152, the armature 151 being for magnetically adsorbing with the valve stem 131. The valve head housing 152 includes an elastic layer 1522 that is a hollow cylinder, the elastic layer 1522 being capable of expanding and contracting in a first direction (i.e., the direction of movement of the valve head 150) to ensure the travel requirements of the valve head 150 during opening of the bypass valve 100.

One end of the elastic layer 1522 is a first sealing end 1521 extending from an end of the elastic layer 1522 along a radial direction, where the first sealing end 1521 is clamped between a lower end surface of the housing 110 and an upper end surface of the interface channel 200 along a first direction, for sealing between the interface channel 200 and the outside, so as to prevent leakage between the interface channel 200 and the outside.

The other end of the elastic layer 1522 is provided with a second sealing end 1523 which is up to a cylinder, and the second sealing end 1523 is used for being connected with the skeleton 151. Specifically, when the bypass valve 100 is closed, the second sealing end 1523 is configured to seal against an end surface of the first channel 210, so as to seal the interior of the interface channel 200 (i.e., seal the first channel 210, preventing leakage between the first channel 210 and the second channel 220).

Illustratively, the valve head housing 152 is made of rubber, and the skeleton 151 and the valve head housing 152 may be connected by a rubber vulcanization process or an assembly process.

Referring to fig. 2, the skeleton 151 includes flange end surfaces and bosses, and at least the bosses on the skeleton 151 are magnetically attracted to the valve stem 131. The backbone 151 is connected to the second sealing end 1523 by a flange end surface, and illustratively, an inner sidewall of the second sealing end 1523 is provided with a connecting groove, in which the flange end surface of the backbone 151 is embedded to achieve connection of the backbone 151 to the valve head housing 152. The boss is disposed on the flange end face along the first direction, and the boss corresponds to the valve stem 131 in position. The outer side wall of the boss, the inner side wall of the valve head housing 152 and the flange end face enclose a valve head 150 cavity.

After the valve rod 131 magnetically adsorbs the skeleton 151, the skeleton 151 moves towards the valve rod 131 along the first direction, so as to drive the second sealing end 1523 to compress the elastic layer 1522 and move towards the valve rod 131, so that the second sealing end 1523 is separated from the first channel 210, and the bypass valve 100 is opened. After the skeleton 151 is installed in the valve head housing 152, the upper end surface of the skeleton 151 is spaced from the upper end surface of the valve head housing 152 in the first direction, and the distance should satisfy the stroke requirement of the valve head 150.

Referring to fig. 2, the boss is provided with a guide hole 1511, and when the stem 151 is attracted by the stem 131 and moves to a set position in the first direction, the stem 131 can slide into the guide hole 1511, and the movement of the stem 151 is guided by the guide hole 1511. Further, the inner wall surface of the guide hole 1511 is provided with a lubricating coating such as a PTFE-rich coating or a lubricating medium such as grease for reducing friction and wear when the valve stem 131 and the guide stem slide against each other.

Further, the elastic member 140 is sleeved on the boss, one end of the elastic member 140 is abutted against the lower end surface of the housing 110, and the other end of the elastic member 140 is abutted against the flange end surface. The elastic member 140 not only can ensure that the valve head 150 can be normally reset after power failure to realize closing of the bypass valve 100, but also can ensure that the valve head 150 cannot be sprung up when vibration occurs in use, so that the bypass valve 100 is prevented from being opened by mistake.

Referring to fig. 2, further, a vent hole 1512 is provided on the second sealing end 1523 and the flange end surface of the skeleton 151 to enable the first channel 210 to communicate with the inner cavity of the valve head 150, so as to realize a pressure balance hole, so as to prevent the valve head 150 from being blown up by high-pressure gas and the bypass valve 100 from being opened by mistake when the bypass valve 100 is closed.

When the technical scheme of the embodiment of the utility model is used, after the wire is electrified, the solenoid system formed by the wire and the metal core generates electromagnetic force, and the metal core magnetically attracts the framework 151 through the valve rod 131 extending out of the shell 110. The skeleton 151 is attracted by the valve rod 131 to move upwards, so that the second sealing end 1523 is driven to compress the elastic layer 1522 to move upwards along with the skeleton 151, the elastic layer is separated from the end surface of the first channel 210, and the bypass valve 100 is opened, so that the first channel 210 is communicated with the second channel 220. In the process that the skeleton 151 is attracted and moved upwards by magnetic force, the elastic piece 140 plays a role in primary guiding and positioning of the valve head 150, and after the valve rod 131 is led into the guiding hole 1511 of the skeleton 151, the valve head 150 is subjected to fine positioning and guiding by matching the guiding hole 1511 with the hole shaft of the valve rod 131.

After the wire is powered off, the magnetic force of the metal core disappears, the skeleton 151 is not attracted by the valve rod 131, and moves away from the valve rod 131 along the first direction under the action of the elastic force of the elastic piece 140 to realize resetting, so that the second sealing end 1523 of the valve head housing 152 is in sealing fit with the end surface of the first channel 210 of the interface channel 200, the bypass valve 100 is closed, and the first channel 210 and the second channel 220 are disconnected.

As described above, the present utility model simplifies the structure of the solenoid and the structure of the valve head 150, and the components can serve various purposes, such as the valve head housing 152 itself being retractable to effect movement, and the two end surfaces thereof also serving as seals. The elastic member 140 plays a role of resetting the valve head 150, also plays a role of initial guiding when the valve head 150 moves, and prevents the bypass valve 100 from being opened by mistake, thereby reducing the number of parts of the product, and simplifying the assembly process of each part, thereby greatly reducing the manufacturing cost.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims

1. A bypass valve for controlling the opening and closing of an interface passage, comprising:

a metal core having a valve stem;

a wire wound around the metal core;

the shell is coated outside the metal core and the lead, and the valve rod extends out of the shell;

a valve head having one end thereof sealingly connected to the housing end face, the valve head being configured to magnetically attract the valve stem when the lead is energized to separate the other end of the valve head from the mouthpiece passage; and when the wire is de-energized, the other end of the valve head seals the interface passage.

2. The bypass valve as recited in claim 1, further comprising an elastic member having one end abutting the housing and the other end abutting the valve head.

3. The bypass valve of claim 2, wherein the valve head comprises:

the valve head shell is provided with one end which is attached to the shell, and the other end of the valve head shell is used for being attached to the end face of the interface channel;

the framework is arranged in the valve head shell and can magnetically attract or separate from the valve rod, so that the other end of the valve head is separated from or attached to the end face of the interface channel.

4. A bypass valve as recited in claim 3, wherein the valve head housing is rubber.

5. A bypass valve as recited in claim 3, wherein the valve head housing comprises:

the first sealing end is in sealing connection with the end face of the shell;

the second sealing end is used for being attached to the interface channel, and the first sealing end and the second sealing end are arranged at intervals along the moving direction of the framework;

6. The bypass valve of claim 5, wherein the skeleton comprises:

the flange end face is used for being connected with the second sealing end;

the outer side wall of the boss, the inner side wall of the valve head shell and the end face of the flange are enclosed to form a valve head cavity.

7. The bypass valve of claim 6, wherein a lubricious coating is disposed within the pilot bore.

8. The bypass valve as recited in claim 6, wherein the elastic member is sleeved on the boss, and the other end of the elastic member abuts against the flange end face.

9. The bypass valve of claim 6, wherein vent holes are provided in both the second sealing end and the flange end face to place the interface passage in communication with the valve head chamber.

10. The bypass valve as claimed in claim 1, wherein the housing is provided with connectors for connection to a power source, and leads at both ends of the wire are respectively connected to the connectors.