CN217784231U

CN217784231U - Valve gate

Info

Publication number: CN217784231U
Application number: CN202221249993.2U
Authority: CN
Inventors: 谭国棠; 丘福生; 邝光照
Original assignee: Zhongshan Kaixuan Vacuum Science and Technology Co Ltd
Current assignee: Zhongshan Kaixuan Vacuum Science and Technology Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-11-11
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a valve, including valve body, valve rod and separator. The valve body is provided with a cavity, a valve rod mounting hole, a fluid input hole and a fluid output hole; the valve rod penetrates through the valve rod mounting hole and can move along the axial direction of the valve rod mounting hole, and the valve rod part is positioned in the cavity; the valve rod mounting hole penetrates through the cavity wall of the isolation cavity, and the fluid input hole and the fluid output hole penetrate through the cavity wall of the valve cavity; the valve body is provided with an observation hole, and the observation hole is communicated with the isolation cavity, so that whether the separator of the valve is damaged or not can be conveniently found.

Description

Valve gate

Technical Field

The utility model relates to a valve field, in particular to valve.

Background

The existing valve comprises a valve body and a valve rod, wherein the valve rod is arranged in a valve rod mounting hole of the valve body in a penetrating mode and can move along the valve rod mounting hole, and the function of controlling the opening and closing of the valve is achieved. However, when the fluid passing through the cavity in the valve body contains fine high-hardness particles, the high-hardness particles are easy to enter between the valve rod and the valve body, and when the valve rod moves relative to the valve body, the matching part of the valve rod and the valve body is easy to wear, so that the service life of the valve is seriously influenced. In order to solve the problem, a partition is usually arranged in the cavity to divide the cavity into a valve cavity and an isolation cavity, the isolation cavity is communicated with the valve rod mounting hole, and fluid passing through the valve cavity cannot enter the isolation cavity, so that the matching area between the valve rod and the valve body cannot be abraded. However, such valves have partitions that are difficult to observe and detect when broken, resulting in a failure to replace or repair the valve in a timely manner.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a valve, can be convenient for discover whether there is the damage in the separator of valve.

According to the utility model discloses valve, including valve body, valve rod and separator. The valve body is provided with a cavity, a valve rod mounting hole, a fluid input hole and a fluid output hole; the valve rod penetrates through the valve rod mounting hole and can move along the axial direction of the valve rod mounting hole, and the valve rod is partially positioned in the cavity; the valve rod mounting hole penetrates through the cavity wall of the isolation cavity, and the fluid input hole and the fluid output hole penetrate through the cavity wall of the valve cavity; the valve body is provided with an observation hole, and the observation hole is communicated with the isolation cavity.

According to the utility model discloses valve has following beneficial effect at least: the separator divides the cavity into an isolation cavity and a valve cavity, the valve cavity is communicated with the fluid input hole and the fluid output hole, fluid can pass through the fluid, the separator prevents the fluid in the valve cavity from entering the isolation cavity, the fluid in the valve cavity cannot enter a space between the valve rod and the valve rod mounting hole, the valve rod and the valve rod mounting hole are normally matched for use at the moment, and no fluid mark can be observed in the observation hole; when the divider is damaged, the fluid enters the isolation cavity through the divider, and then the fluid enters the observation hole and can be observed, so that whether the divider of the valve is damaged or not can be conveniently found.

According to the utility model discloses a some embodiments still include the observation sight glass, the observation sight glass set up in valve body and closing cap observe the outside drill way in hole.

According to some embodiments of the utility model, the sight glass detachably set up in the valve body.

According to the utility model discloses a some embodiments still include connecting line and suction pump, connecting line's one end with the suction pump is connected, connecting line's the other end the pipeline space with the observation hole intercommunication, connecting line configuration is the printing opacity piece.

According to the utility model discloses a some embodiments, the valve body is provided with the intercommunication passageway, observe the hole and pass through the intercommunication passageway with keep apart the chamber intercommunication, the diameter of observing the hole is greater than the diameter of intercommunication passageway.

According to some embodiments of the invention, the spacer is configured as a deformable membrane structure; the valve rod comprises a first rod body and a second rod body, the first rod body penetrates through the valve rod mounting hole, the second rod body is arranged on the first rod body, the middle of the separator is clamped between the first rod body and the second rod body, the valve body comprises a main body and a valve cover, the valve cover is arranged on the main body, and the outer peripheral edge of the separator is clamped between the main body and the valve cover.

According to some embodiments of the utility model, the middle part of separator is following the ascending terminal surface in the axial of valve rod mounting hole is provided with first joint portion, first body of rod or the second body of rod correspondence is provided with first cooperation portion, first joint portion with one of first cooperation portion configures to first calorie of protruding, and another configures to first draw-in groove, first calorie of protruding with first draw-in groove joint cooperation.

According to the utility model discloses a some embodiments still include the control, the control activity set up in the valve pocket and have closed valve position and open the valve position closed valve position, the control makes the fluid input hole with the fluid delivery outlet does not communicate open the valve position, the fluid input hole with the fluid delivery outlet can communicate each other, the valve rod configuration is to be controlled the control switches closed valve position with open the valve position.

According to some embodiments of the present invention, the control member is configured as a ball, the ball is disposed opposite to the inner hole of the fluid input hole, the valve rod is disposed to abut against the ball to close the inner hole of the fluid input hole, and the valve rod is movable to provide a space for the ball to yield, so that a gap is generated between the ball and the inner hole of the fluid input hole.

According to the utility model discloses a some embodiments, the outer peripheral edge of separator is following the ascending terminal surface of axial of valve rod mounting hole is provided with second joint portion, the valve gap or the main part correspondence is provided with second cooperation portion, second joint portion with one of second cooperation portion configures to the second card protruding, and another configuration is the second draw-in groove, the second card protruding with the cooperation of second draw-in groove joint.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a front cut-away schematic view of a valve according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged schematic view of fig. 1 at B.

Reference numerals:

the valve body 100, the cavity 110, the isolation chamber 111, the valve chamber 112, the stem mounting hole 120, the fluid input hole 130, the fluid output hole 140, the observation hole 150, the communication passage 160, the main body 170, the valve cover 180, and the second fitting portion 181;

a valve rod 200, a first rod 210, a first matching part 211 and a second rod 220;

a spacer 300, a first catching portion 310, a second catching portion 320;

the sight glass 400, the threaded post portion 410;

a control member 500;

a cylinder 600.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, a valve according to an embodiment of the present invention includes a valve body 100, a valve stem 200, and a separator 300. The valve body 100 is provided with a cavity 110, a stem mounting hole 120, a fluid input hole 130, and a fluid output hole 140; the valve rod 200 penetrates through the valve rod mounting hole 120 and can move along the axial direction of the valve rod mounting hole 120, and the valve rod 200 is partially positioned in the cavity 110; the separator 300 is arranged on the valve rod 200 and positioned in the cavity 110, and the separator 300 divides the cavity 110 into an isolation cavity 111 and a valve cavity 112; the valve rod mounting hole 120 penetrates to the wall of the isolation cavity 111, and the fluid input hole 130 and the fluid output hole 140 penetrate to the wall of the valve cavity 112; wherein the valve body 100 is opened with an observation hole 150, and the observation hole 150 is communicated with the isolation cavity 111. The separator 300 divides the cavity 110 into an isolation chamber 111 and a valve chamber 112, the valve chamber 112 is communicated with the fluid input hole 130 and the fluid output hole 140, fluid can pass through, the separator 300 prevents the fluid in the valve chamber 112 from entering the isolation chamber 111, the fluid in the valve chamber 112 cannot enter between the valve rod 200 and the valve rod mounting hole 120, at this time, the valve rod 200 and the valve rod mounting hole 120 are normally matched for use, and no trace of the fluid can be observed in the observation hole 150; when the partition 300 is broken, the fluid passes through the partition 300 into the segregation chamber 111, and then the fluid enters the observation hole 150 and can be observed, so that it is possible to facilitate finding whether the partition 300 of the valve is broken. Specifically, the separator 300 is an elastic membrane. It is contemplated that the divider 300 may be other components that provide a dividing function, such as a piston block mounted to the valve stem 200 that moves with the valve stem 200 and that divides the cavity 110.

Referring to fig. 1 to 3, the valve body 100 is provided with a communication passage 160, the observation hole 150 communicates with the isolation chamber 111 through the communication passage 160, and the diameter of the observation hole 150 is larger than that of the communication passage 160. The viewing port 150 of the above structure, which is opened at the position of the valve body 100, can be more flexible, and deformation of the partitioning member 300 when it comes into contact with the orifice periphery of the communication passage 160 is reduced, reducing the risk of damage to the partitioning member 300. It is envisioned that the observation hole 150 may be other structures without being limited to the above-mentioned embodiment, for example, the observation hole 150 is a through hole directly communicating with the isolated cavity 111.

Referring to fig. 1 to 3, a viewing mirror 400 is further included, and the viewing mirror 400 is provided to the valve body 100 and covers the outer port of the viewing hole 150. The observation mirror 400 is provided to facilitate observation of the situation inside the observation hole 150. Specifically, the sight glass 400 is composed of a mounting frame and a transparent lens, and the mounting frame is mounted on the valve body 100. The sight glass 400 may have other structures without being limited to the above-described embodiment, for example, the sight glass 400 is a transparent lens directly mounted on the opening periphery of the sight hole 150.

Referring to fig. 1 to 3, the sight glass 400 is detachably provided to the valve body 100. The observation mirror 400 can be disassembled, and is convenient to disassemble and maintain. Specifically, the observation mirror 400 is provided with a threaded post portion 410, the observation hole 150 is provided with a threaded hole portion, and the threaded post portion 410 is screwed into the threaded hole portion. The threaded post portion 410 is threadedly coupled to the threaded bore portion, allowing the sight glass 400 to be easily installed and removed. It is conceivable that the observation mirror 400 can be mounted on the valve body 100 by other means, for example, the observation mirror 400 and the valve body 100 are connected by gluing; or the observation mirror 400 is provided with a hook part, the valve body 100 is provided with a clamping groove, and the hook part is matched with the clamping groove to realize the installation of the observation mirror 400; the valve body 100 may be provided with a magnet, the observation mirror 400 may be provided with an iron structure, and the iron structure may be attracted by the magnet, thereby allowing the observation mirror 400 to be attached.

Referring to fig. 1 to 3, a connection pipe (not shown) and a suction pump (not shown) are further included, one end of the connection pipe is connected to the suction pump, a pipe space at the other end of the connection pipe is communicated with the observation hole 150, and the connection pipe is configured as a light-transmitting member. When the partition 300 is broken to cause the fluid to be present in the observation hole 150, the suction pump may drive the connection line to suck the fluid, and the fluid may be seen in the connection line, thereby conveniently observing whether the partition 300 is broken. It will be appreciated that the suction pump may be a positive displacement pump or a vane pump; specifically, the light-transmitting member may be made of PC or PE.

Referring to fig. 1 to 3, the partitioning member 300 is configured as a deformable membrane structure; the valve stem 200 includes a first stem 210 and a second stem 220, the first stem 210 is disposed through the valve stem mounting hole 120, the second stem 220 is disposed on the first stem 210, the middle portion of the separating member 300 is clamped between the first stem 210 and the second stem 220, the valve body 100 includes a main body 170 and a cap 180, the cap 180 is disposed on the main body 170, and the outer periphery of the separating member 300 is clamped between the main body 170 and the cap 180. The first rod 210 and the second rod 220 clamp the middle of the fixed separating member 300, the body 170 and the cap 180 clamp the outer circumference of the separating member 300, and the separating member 300 is a deformable membrane, so that the membrane maintains a sealing effect during the movement of the valve stem 200, and the sealing effect is relatively good. It is conceivable that the connecting structure of the valve stem 200 and the partitioning member 300 may also be other structures without being limited to the above-described embodiment, for example, the partitioning member 300 is provided with a through hole, a screw hole is provided on the valve stem 200, a screw is passed through the through hole and screwed to the screw hole, and the partitioning member 300 is locked to the valve stem 200.

Specifically, the valve cover 180 is locked to the body 170 by screws, and both clamp the partition 300, thereby fixing the partition 300. It is conceivable that the partition 300 may be connected to the valve body 100 by other means, for example, the periphery of the partition 300 is provided with a through hole, the cavity wall of the cavity 110 is provided with a threaded hole, a screw passes through the through hole and is screwed into the threaded hole, the outer periphery of the partition 300 is locked to the cavity wall of the cavity 110, and the partition 300 is connected to the valve body 100; the outer circumference of the partition 300 may be bonded to the wall of the cavity 110 by an adhesive to mount the partition 300.

Referring to fig. 1 to 3, a first clamping portion 310 is disposed on an axial end surface of the middle portion of the separator 300 along the valve rod mounting hole 120, a first matching portion 211 is correspondingly disposed on the first rod 210, the first clamping portion 310 is configured as a first clamping protrusion, the first matching portion 211 is configured as a first clamping groove, and the first clamping protrusion is in clamping fit with the first clamping groove. Utilize first joint portion 310 and first cooperation portion 211 joint cooperation, first body of rod 210 and second body of rod 220 centre gripping separator 300 simultaneously for separator 300 is inseparabler with being connected of valve rod 200, reduces the not hard up risk of separator 300. Specifically, the first clamping protrusion is configured as an annular projection, the first clamping groove is configured as an annular groove, and the annular projection is accommodated in the annular groove to realize clamping fit. It is conceivable that other structures are also possible without being limited to the above-described embodiment, for example, the first catching portion 310 is configured as a first catching groove provided on an end surface in the axial direction of the valve stem mounting hole 120, and the first fitting portion 211 is configured as a first catching protrusion. It is conceivable that the first engagement portion 211 may be provided on the second lever 220. It is understood that the valve stem 200 may be other shapes, not limited to a rod, such as a square.

Specifically, the second rod 220 is mounted on the first rod 210 by screw locking.

Referring to fig. 1 to 3, the valve assembly further includes a control member 500, the control member 500 is movably disposed in the valve cavity 112 and has a valve-closed position in which the control member 500 does not communicate the fluid inlet hole 130 with the fluid outlet hole 140 and a valve-open position in which the fluid inlet hole 130 and the fluid outlet hole 140 can communicate with each other, and the valve rod 200 is configured to control the control member 500 to switch between the valve-closed position and the valve-open position. The control part 500 is used for controlling the valve opening and closing, and the structure is simple. It will be appreciated that the valve stem 200 may also be used directly to control the communication or non-communication between the fluid input aperture 130 and the fluid output aperture 140.

Referring to fig. 1 to 3, the control member 500 is configured as a ball disposed opposite to the inner side opening of the fluid input hole 130, the valve stem 200 is used to press the ball against the inner side opening of the fluid input hole 130 to close the fluid input hole 130, and the valve stem 200 can provide a space for the ball to move, so that a gap can be generated between the ball and the inner side opening of the fluid input hole 130. Specifically, the valve rod 200 is not fixedly connected to the ball, the axial direction of the valve rod 200 is the same as the axial direction of the fluid input hole 130, when the valve rod 200 moves upward, a gap is generated between the ball and the valve rod 200, and the ball is jacked up by the fluid pressure at the fluid input hole 130, so that the fluid input hole 130 is communicated with the fluid output hole 140; when the valve stem 200 moves downward, the ball is pressed against the inner opening of the fluid inlet hole 130. The control part 500 with the structure has a simple structure and a good control effect. It is conceivable that the axial direction of the valve rod 200 and the axial direction of the fluid input hole 130 may be perpendicular to each other, and a segment-shaped accommodation groove is formed in the valve rod 200, and when the valve rod 200 moves, the accommodation groove is aligned with a sphere, and the sphere can be opened by the pressure at the fluid input hole 130; when the valve rod 200 moves to other positions, the ball is pressed against the inner opening of the fluid inlet hole 130 by the groove wall of the receiving groove. It is also conceivable that the control member 500 is fixedly mounted on the valve stem 200, and the valve cover 180 is directly used to drive the control member 500 to switch to the valve-closing position or the valve-opening position.

Referring to fig. 1 to 3, the outer periphery of the spacer 300 is provided with a second clamping portion 320 on an axial end surface of the valve rod mounting hole 120, the valve cover 180 is correspondingly provided with a second matching portion 181, the second clamping portion 320 is configured as a second clamping protrusion, the second matching portion 181 is configured as a second clamping groove, and the second clamping protrusion is in clamping fit with the second clamping groove. Second joint portion 320 cooperates with the joint of second cooperation portion 181, and cooperation valve gap 180 and main part 170 centre gripping separator 300's outer peripheral edges for separator 300 is difficult to become flexible and drops, simple structure. Specifically, the second clamping protrusion is configured as an annular projection, the second clamping groove is configured as an annular groove, and the annular projection is accommodated in the annular groove to realize clamping fit. It is conceivable that other configurations are also possible without being limited to the above-described embodiment, for example, the second catching portion 320 is configured as a second catching groove provided on an end surface in the axial direction of the valve-stem mounting hole 120, and the second fitting portion 181 is configured as a second catching protrusion.

Referring to fig. 1 to 3, in particular, the valve of the present embodiment controls the movement of the valve rod 200 through the cylinder 600, thereby having a physical basis for automatic control.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A valve, comprising:

a valve body (100) provided with a cavity (110), a valve stem mounting hole (120), a fluid input hole (130), and a fluid output hole (140);

the valve rod (200) penetrates through the valve rod mounting hole (120) and can move along the axial direction of the valve rod mounting hole (120), and the valve rod (200) is partially positioned in the cavity (110);

a partition (300) disposed in the valve stem (200) and located within the cavity (110), the partition (300) dividing the cavity (110) into an isolation chamber (111) and a valve chamber (112); the valve rod mounting hole (120) penetrates through the cavity wall of the isolation cavity (111), and the fluid input hole (130) and the fluid output hole (140) penetrate through the cavity wall of the valve cavity (112);

the valve body (100) is provided with an observation hole (150), and the observation hole (150) is communicated with the isolation cavity (111).

2. The valve of claim 1, wherein: the valve further comprises an observation mirror (400), wherein the observation mirror (400) is arranged on the valve body (100) and covers the outer side hole opening of the observation hole (150).

3. The valve of claim 2, wherein: the observation mirror (400) is detachably provided to the valve body (100).

4. The valve of claim 1, wherein: the novel multifunctional observation device is characterized by further comprising a connecting pipeline and a suction pump, wherein one end of the connecting pipeline is connected with the suction pump, the pipeline space at the other end of the connecting pipeline is communicated with the observation hole (150), and the connecting pipeline is configured to be a light-transmitting piece.

5. The valve of claim 1, wherein: the valve body (100) is provided with a communication channel (160), the observation hole (150) is communicated with the isolation cavity (111) through the communication channel (160), and the diameter of the observation hole (150) is larger than that of the communication channel (160).

6. The valve of claim 1, wherein: the separator (300) is configured as a deformable membrane structure; valve rod (200) includes first body of rod (210) and second body of rod (220), first body of rod (210) is worn to locate valve rod mounting hole (120), second body of rod (220) set up in first body of rod (210), the middle part centre gripping of separator (300) in first body of rod (210) with between the second body of rod (220), valve body (100) include main part (170) and valve gap (180), valve gap (180) set up in main part (170), the outer peripheral edge centre gripping of separator (300) in main part (170) with between valve gap (180).

7. The valve of claim 6, wherein: the middle part of separator (300) is following the ascending terminal surface in the axial of valve rod mounting hole (120) is provided with first joint portion (310), first body of rod (210) or second body of rod (220) correspondence is provided with first cooperation portion (211), first joint portion (310) with one of first cooperation portion (211) is configured as first calorie of protruding, and another configuration is first draw-in groove, first calorie of protruding with first draw-in groove joint cooperation.

8. The valve of claim 1, wherein: the valve body is characterized by further comprising a control part (500), wherein the control part (500) is movably arranged in the valve cavity (112) and is provided with a valve closing position and a valve opening position, the control part (500) enables the fluid input hole (130) and the fluid output hole (140) not to be communicated in the valve closing position, the fluid input hole (130) and the fluid output hole (140) can be communicated in the valve opening position, and the valve rod (200) is configured to control the control part (500) to switch between the valve closing position and the valve opening position.

9. The valve of claim 8, wherein: the control member (500) is configured as a sphere, the sphere is arranged opposite to the inner orifice of the fluid input hole (130), the valve rod (200) is used for pressing the sphere against the inner orifice of the fluid input hole (130) to close the fluid input hole (130), and the valve rod (200) can provide a yielding space for the sphere when moving, so that a gap can be generated between the sphere and the inner orifice of the fluid input hole (130).

10. The valve of claim 6, wherein: the outer peripheral edges of separator (300) are following the ascending terminal surface in the axial of valve rod mounting hole (120) is provided with second joint portion (320), valve gap (180) or main part (170) correspond and are provided with second cooperation portion (181), second joint portion (320) with one of second cooperation portion (181) configures to the second card protruding, and another configures to the second draw-in groove, the second card protruding with the cooperation of second draw-in groove joint.