CN210600204U

CN210600204U - Flap valve

Info

Publication number: CN210600204U
Application number: CN201921695024.8U
Authority: CN
Inventors: 孙围华; 田旭; 靳毅
Original assignee: Chuanbei Vacuum Technology Beijing Co ltd
Current assignee: Chuanbei Vacuum Technology Beijing Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-05-22
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a flap valve, which comprises a valve body, wherein a valve cavity is arranged in the valve body, and a valve opening communicated with the valve cavity is arranged on the valve body; the linear driving mechanism is arranged on the valve body, and the telescopic end of the linear driving mechanism extends into the valve cavity; the valve plate assembly is arranged in the valve cavity and is connected between the inner wall of the valve body and the telescopic end of the linear driving mechanism; the valve plate assembly has a closed state for closing the valve opening and an open state for opening the valve opening under the action of the linear driving mechanism; the telescopic end of the linear driving mechanism is connected with an adjusting block provided with a kidney-shaped hole, and the valve plate assembly is movably connected between the kidney-shaped hole and the valve body. The flap valve of this kind of structure only needs a linear drive mechanism just can realize the quick upset of valve plate subassembly, and the mode of connecting through the adjusting block between the flexible end of valve plate subassembly and linear drive mechanism moreover can turn into the upset motion of valve plate subassembly with linear drive mechanism's linear motion, has that spare part is little, simple structure, easy to maintain, advantage low in production cost.

Description

Flap valve

Technical Field

The utility model relates to a vacuum coating technical field, concretely relates to flap valve.

Background

The vacuum continuous coating production line is generally composed of a plurality of modules with different functions, the modules are spliced together in a linear manner, a coated substrate enters from one end, a coating process is completed through the whole coating production line, and the substrate is discharged from the other end, so that the requirement of normal operation of vacuum coating is met, firstly, a very clean environment is formed between the whole modules, secondly, different vacuum degrees between different modules are met, a pressure gradient from atmosphere-coating process pressure-atmosphere is formed, a vacuum flap valve is a core component for realizing the functions, the quality of a coating product is good, whether the coating continuous line can be normally used or not, and the flap valve plays a key role.

Chinese utility model patent publication No. CN110131421A discloses an external drive type two-section transmission valve, which mainly comprises: the valve plate, the valve connecting rod, the rotating shaft frame, the driving connecting rod, the hollow stroke shaft, the upper-section welded bellows assembly, the lower-section welded bellows assembly, the limiting shaft sleeve, the limiting flange, the rectangular spring, the lifting beam and related parts form two groups of two-section transmission mechanisms; through the extension and the withdrawal of the cylinder pole that is located the lifting beam intermediate position to and the extension or the compression of lower spring, drive upper and lower bellows subassembly compression and extension, make the valve plate at first along the vertical direction downwards or rebound, later the valve plate will be around the sealed face of certain angle of pivot clockwise or anticlockwise rotation and vacuum chamber and closely laminate, for the vacuum chamber provides reliable reaction environment, the structure when having overcome the valve in the past and adopting the upset sealed axial construction is complicated, and is with high costs, the sealing member scheduling problem of fragile.

However, the valve still has more parts, complex structure and higher production cost. Therefore, there is a need for a flap valve that is simple in construction and provides a reliable reaction environment for the vacuum chamber.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the problem that there is the structure complicacy, high in production cost in being applied to the rollover valve of vacuum chamber among the prior art to a flap valve is provided.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a flap valve comprising:

the valve body is internally provided with a valve cavity, and a valve opening communicated with the valve cavity is arranged on the valve body;

the linear driving mechanism is arranged on the valve body, and the telescopic end of the linear driving mechanism extends into the valve cavity;

the valve plate assembly is arranged in the valve cavity and is connected between the inner wall of the valve body and the telescopic end of the linear driving mechanism; the valve plate assembly has a closed state for closing the valve opening and an open state for opening the valve opening under the action of the linear driving mechanism.

Furthermore, an adjusting block is connected to the telescopic end of the linear driving mechanism, and a waist-shaped hole is formed in the adjusting block; one end of the valve plate assembly is rotatably installed on the valve body around a connecting shaft, the other end of the valve plate assembly is connected with a sliding rotating shaft, and the sliding rotating shaft is in sliding fit with the waist-shaped hole.

Further, the valve plate assembly comprises a valve plate for sealing the valve opening and a connecting plate connected with the valve plate, the connecting plate is T-shaped, and the sliding rotating shaft is connected to one free end of the connecting plate.

Furthermore, a first fixing hole is formed in one end, connected with the sliding rotating shaft, of the connecting plate, and the sliding rotating shaft is rotatably connected to the first fixing hole; one end of the connecting plate, which is connected with the valve body, is provided with a second fixing hole, and the connecting shaft is rotatably connected with the second fixing hole.

Further, the hole site spacing between the first fixing hole and the second fixing hole is smaller than or equal to the sum of the length of the waist-shaped hole and the spacing between the first fixing hole and the second fixing hole in the horizontal direction.

Further, the valve plate assembly is close to be equipped with the sealing strip on the open-ended side of valve, the valve body corresponds be equipped with the recess on the open-ended position of valve, work as the valve plate assembly is in and closes when the open-ended closed condition of valve, the sealing strip embedding in the recess.

Further, the groove is a dovetail groove.

Further, the linear driving mechanism is an air cylinder, the cylinder body part of the air cylinder is installed outside the valve body through an adapter plate, and a telescopic rod of the air cylinder extends into the valve cavity.

Further, the valve body is provided with a mounting hole for the telescopic rod of the air cylinder to pass through, and the mounting hole is provided with a sealing shaft sleeve sleeved on the periphery of the telescopic rod.

Further, a sealing element is arranged in a gap between the sealing shaft sleeve and the telescopic rod.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a flap valve only needs a sharp actuating mechanism just can drive the valve plate subassembly that is located the valve body and opens or close the valve door opening, has the advantage that the sealing performance after quick process, the valve body of upset execution is closed.

2. The utility model provides a flap valve sets up the adjusting block through serving at linear drive mechanism's flexible, sets up waist type hole on the adjusting block, and the waist type hole sliding fit on slide bearing and the adjusting block is passed through to valve plate assembly's one end, and this kind of structure only needs an adjusting block and a slide bearing just can turn into linear drive mechanism's linear motion into valve plate assembly's upset motion, has that spare part is little, simple structure, easy to maintain, advantage that manufacturing cost is low.

3. The utility model provides a flap valve, the mode of sliding shaft rotation connection in the first fixed orifices of connecting plate is not rigid connection between sliding shaft and the connecting plate to can reduce the interference of sliding shaft to valve plate subassembly upset motion in-process, the upset process of valve plate is more smooth, rapid.

4. The utility model provides a flap valve, the hole site interval between first fixed orifices and the second fixed orifices on the connecting plate is less than or equal to the length in waist type hole and first fixed orifices and the interval sum of second fixed orifices on the horizontal direction, makes the adjusting block can not form the upset of connecting plate and interfere, further is favorable to realizing the quick upset of valve plate.

5. The utility model provides a flap valve seals through inlaying the sealing strip of establishing into in the recess between valve plate and the valve body, carries out the mode sealed through sealed axle sleeve between cylinder and the valve body, can form reliable and stable vacuum reaction environment in the valve body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a main structure of a valve body in a closed state according to an embodiment of the present invention;

fig. 2 is a schematic view of a main structure of the embodiment of the present invention in an open state;

fig. 3 is a schematic structural view of a connecting plate in a valve plate assembly provided by the embodiment of the present invention.

Description of reference numerals: 1. a valve body; 101. a valve opening; 102. a groove; 103. mounting holes; 2. a cylinder; 3. a valve plate assembly; 31. a valve plate; 32. a connecting plate; 321. a first fixing hole; 322. a second fixing hole; 4. an adjusting block; 41. a kidney-shaped hole; 5. a sliding shaft; 6. a connecting shaft; 7. a fixed seat; 8. sealing the shaft sleeve; 9. a seal member; 10. an adapter plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

A flap valve as shown in figures 1-3 comprises a valve body 1, a linear drive mechanism and a valve plate assembly 3. The valve body 1 is internally provided with a valve cavity, and a valve opening 101 communicated with the valve cavity is formed in one side wall of the valve body 1; the linear driving mechanism is arranged outside the valve body 1, and the telescopic end of the linear driving mechanism extends into the valve cavity; the valve plate assembly 3 is arranged in the valve cavity, and two ends of the valve plate assembly are respectively connected between the inner wall of the valve body 1 and the telescopic end of the linear driving mechanism; the valve plate assembly 3 has a closed state closing the valve opening 101 and an open state opening the valve opening 101 by the linear driving mechanism.

The flap valve with the structure can drive the valve plate assembly 3 positioned in the valve body 1 to open or close the valve opening 101 only by one linear driving mechanism, and has the advantages of fast implementation process of the turnover action of the valve plate assembly 3 and good sealing performance after the valve body 1 is closed.

In this embodiment, a valve body 1 of a gas rod of a linear driving mechanism is provided with a mounting hole 103 for a telescopic rod of a cylinder 2 to pass through, a cylinder body part of the cylinder 2 is mounted outside the valve body 1 through an adapter plate 10, and the telescopic rod of the cylinder 2 extends into a valve cavity. The installation hole 103 is provided with a sealing shaft sleeve 8 which is sleeved on the periphery of the telescopic rod, the positions of the sealing shaft sleeve 8 and the valve body 1 corresponding to the installation hole 103 are provided with step surfaces, the valve body 1 is provided with a step structure corresponding to the installation hole 103, the outer side wall of the sealing shaft sleeve 8 is tightly abutted to the step structure on the valve body 1, and a gap between the sealing shaft sleeve 8 and the step structure is sealed by an O-shaped sealing ring. The inner wall of the sealing shaft sleeve 8, which is contacted with the telescopic rod of the cylinder 2, is provided with a concave cavity, the gap between the concave cavity and the telescopic rod of the cylinder 2 can be sealed by adopting a plurality of O-shaped sealing rings or conical sealing rings with different sizes, models and types, and flat gaskets are arranged among the sealing rings. The sealing element 9 consisting of a plurality of sealing rings and flat gaskets can form effective sealing between the gas rod telescopic rod and the sealing shaft sleeve 8, and ensure that a stable and reliable vacuum reaction environment is formed in the valve body 1. In other alternative embodiments, the linear drive mechanism may also be a linear actuator, such as an electric push rod or the like, with a telescoping end of the electric push rod extending into the valve chamber.

In this embodiment, an adjusting block 4 is fixedly connected to an end portion of the telescopic rod of the air rod, a waist-shaped hole 41 is formed in the adjusting block 4, and a length direction of the waist-shaped hole 41 is perpendicular to a length direction of the telescopic rod of the air cylinder 2. One end of the valve plate component 3 is rotatably arranged on the valve body 1 around a connecting shaft 6, and the other end is connected with a sliding rotating shaft 5; the sliding rotating shaft 5 is in sliding fit with the kidney-shaped hole 41.

The telescopic link of gas pole and the mode that valve plate subassembly 3 realized both transmissions and connect through adjusting block 4 and slip pivot 5, only need an adjusting block 4 and a slide bearing just can convert the linear motion of gas pole into the upset motion of valve plate subassembly 3, have spare part little, simple structure, easy to maintain, advantage that manufacturing cost is low.

In the present embodiment, the valve plate assembly 3 includes a valve plate 31 for sealing the valve opening 101 and a connecting plate 32 connected to the valve plate 31, the connecting plate 32 is T-shaped, and the slide rotation shaft 5 is connected to one free end of the connecting plate 32. In other embodiments, the connecting plate 32 and the valve plate 31 may be a unitary structure.

In this embodiment, a first fixing hole 321 is formed at one end of the connecting plate 32 connected to the sliding rotating shaft 5, and the sliding rotating shaft 5 is rotatably connected to the first fixing hole 321; one end of the connecting plate 32 connected with the valve body 1 is provided with a second fixing hole 322, and the connecting shaft 6 is rotatably connected with the second fixing hole 322. The connecting plate 32 and the connecting shaft 6 and the connecting plate 32 and the sliding rotating shaft 5 are connected in a rotating mode, so that the interference of the connecting shaft 6 or the sliding rotating shaft 5 to the valve plate assembly 3 in the overturning process can be reduced, and the overturning process of the valve plate 31 is smoother and quicker. Of course, it is understood that in other embodiments, the connecting shaft 6 and the sliding rotating shaft 5 can be fixedly connected to the connecting plate 32.

In the present embodiment, in order to allow the valve plate assembly 3 to be turned over at the maximum angle, the hole site interval between the first fixing holes 321 and the second fixing holes 322 is equal to the sum of the length of the kidney-shaped hole 41 and the minimum interval between the first fixing holes 321 and the second fixing holes 322 in the horizontal direction. So set up, adjusting block 4 can not form the upset of connecting plate 32 and interfere, and the linear motion of gas pole converts into valve plate subassembly 3 upset motion's process more fast, smooth. Specifically, when the valve plate assembly 3 is in the closed state of sealing the valve opening 101, the sliding shaft 5 is located on the side of the kidney-shaped hole 41 closest to the valve opening 101, and the sliding shaft 5 abuts against the outer wall of the kidney-shaped hole 41 to prevent the valve plate assembly 3 from being turned over by an excessively large angle. It is understood that the sum of the length of the kidney-shaped hole 41 and the minimum distance between the first fixing hole 321 and the second fixing hole 322 in the horizontal direction may be larger than the hole-site distance between the first fixing hole 321 and the second fixing hole 322, in which case, the adjusting block 4 will not interfere with the turning of the connecting plate 32.

In this embodiment, a sealing strip is provided on a side surface of the valve plate 31 close to the valve opening 101, a groove 102 is provided on the valve body 1 corresponding to the valve opening 101, and the sealing strip is embedded in the groove 102 when the valve plate 31 is in a closed state of closing the valve opening 101. The valve plate 31 and the valve body 1 are sealed by a sealing strip embedded in the groove 102, so that the sealing performance of the valve body 1 can be improved, and a stable and reliable vacuum reaction environment is ensured to be formed in the valve body 1. In a preferred embodiment of this embodiment, the grooves 102 are dovetail grooves. Of course, the groove 102 may also be other various forms of specific inwardly recessed profile channel structures.

To sum up, the flap valve provided by the embodiment of the present invention only needs one air rod to drive the valve plate assembly 3 located in the valve body 1 to open or close the valve opening 101, so as to realize the rapid turnover of the valve plate assembly 3; and the telescopic link of gas pole and the mode that valve plate subassembly 3 realized both transmissions and connect through adjusting block 4 and slip pivot 5, only need adjusting block 4 and a slide bearing just can change the linear motion of gas pole into the upset motion of valve plate subassembly 3, have spare part little, simple structure, easy to maintain, advantage that manufacturing cost is low.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A flap valve, comprising:

the valve comprises a valve body (1), a valve cavity is formed in the valve body (1), and a valve opening (101) communicated with the valve cavity is formed in the valve body (1);

the linear driving mechanism is arranged on the valve body (1) and the telescopic end of the linear driving mechanism extends into the valve cavity;

the valve plate assembly (3) is arranged in the valve cavity and is connected between the inner wall of the valve body (1) and the telescopic end of the linear driving mechanism; the valve plate assembly (3) has a closed state for closing the valve opening (101) and an open state for opening the valve opening (101) under the action of the linear driving mechanism.

2. The flap valve according to claim 1, characterized in that an adjusting block (4) is connected to the telescopic end of the linear driving mechanism, and a kidney-shaped hole (41) is formed in the adjusting block (4); the one end of valve plate subassembly (3) around a connecting axle (6) rotate install in valve body (1), the other end of valve plate subassembly (3) is connected with slip pivot (5), slip pivot (5) with waist type hole (41) sliding fit.

3. Flap valve according to claim 2, characterized in that the valve plate assembly (3) comprises a valve plate (31) for sealing the valve opening (101) and a connecting plate (32) connected to the valve plate (31), the connecting plate (32) being T-shaped, the sliding spindle (5) being connected to one free end of the connecting plate (32).

4. The flap valve according to claim 3, characterized in that one end of the connecting plate (32) connected with the sliding rotating shaft (5) is provided with a first fixing hole (321), and the sliding rotating shaft (5) is rotatably connected with the first fixing hole (321); one end that connecting plate (32) with valve body (1) is connected is equipped with second fixed orifices (322), connecting axle (6) rotate connect in second fixed orifices (322).

5. The flap valve according to claim 4, characterized in that the hole site distance between the first fixing hole (321) and the second fixing hole (322) is smaller than or equal to the sum of the length of the kidney-shaped hole (41) and the distance in the horizontal direction between the first fixing hole (321) and the second fixing hole (322).

6. A flap valve according to claim 1, characterized in that a sealing strip is provided on a side of the valve plate assembly (3) close to the valve opening (101), a groove (102) is provided on the valve body (1) in a position corresponding to the valve opening (101), and the sealing strip is embedded in the groove (102) when the valve plate assembly (3) is in a closed state closing the valve opening (101).

7. A flap valve according to claim 6, characterized in that the recess (102) is a dovetail groove.

8. The flap valve according to claim 1, characterized in that the linear driving mechanism is a cylinder (2), the cylinder body part of the cylinder (2) is mounted outside the valve body (1) through an adapter plate (10), and the telescopic rod of the cylinder (2) extends into the valve cavity.

9. The flap valve according to claim 8, characterized in that the valve body (1) is provided with a mounting hole (103) for the telescopic rod of the cylinder (2) to pass through, and the mounting hole (103) is provided with a sealing shaft sleeve (8) sleeved on the periphery of the telescopic rod.

10. Flap valve according to claim 9, characterized in that the gap between the sealing bushing (8) and the telescopic rod is provided with a sealing (9).