CN213169630U - Flap valve - Google Patents

Abstract

A flap valve relates to the valve field, includes: the valve comprises a valve body, a first valve plate shaft, a second valve plate shaft, a valve plate, a connecting rod and a counterweight device, wherein the first valve plate shaft is rotatably arranged on the valve body; the valve plate is influenced by material gravity and can drive first valve plate axle and rotate, makes the valve open, and along with the material whereabouts, the valve plate can use second valve plate axle as the reciprocating type swing of rotation axle center. Its simple structure, when less valve that can very big degree was opened, the influence of material whereabouts impact valve plate to the balancing weight, increase of service life.

Description

Flap valve

Technical Field

The utility model relates to a valve field particularly, relates to a flap valve.

Background

At present, most of the traditional flap valves used in the industry have large swing amplitude of the counterweight rod when being opened, so that the counterweight rod is bent and broken after being used for a long time, and the service life is influenced.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flap valve, its simple structure, when the less valve that can be very big degree is opened, the influence of valve plate to the balancing weight is strikeed in the material whereabouts, increase of service life.

The embodiment of the utility model is realized like this:

a flap valve comprising: the valve comprises a valve body, a first valve plate shaft, a second valve plate shaft, a valve plate, a connecting rod and a counterweight device, wherein the first valve plate shaft is rotatably arranged on the valve body; the valve plate is influenced by material gravity and can drive first valve plate axle and rotate, makes the valve open, and along with the material whereabouts, the valve plate can use second valve plate axle as the reciprocating type swing of rotation axle center.

Furthermore, the valve body comprises an expanding section and a reducing section, and the valve plate is positioned on the expanding section so as to seal the port of the reducing section and enable the valve body to be in a closed state.

Furthermore, the end wall of the diameter reducing section, which is close to one end of the diameter expanding section, is provided with a flange along the axial direction, and the flanges are distributed along the circumferential direction of the diameter reducing section.

Further, the flange includes first protruding section and the protruding section of second of interconnect, and the protruding height of first protruding section along reducing section circumference increases progressively, and the protruding height of the protruding section of second along reducing section circumference decreases progressively, and the protruding high point of first protruding section and the protruding section of second is connected.

Further, the convex low points of the first convex section and the second convex section are connected.

Furthermore, the end face, close to one end of the reducing section, of the expanding section is provided with a protruding portion along the axial direction, the protruding portion comprises a third protruding section and a fourth protruding section which are connected with each other, the protruding height of the third protruding section increases progressively along the circumferential direction of the reducing section, the protruding height of the fourth protruding section decreases progressively along the circumferential direction of the reducing section, the protruding high points of the third protruding section and the fourth protruding section are connected, and the protruding low points of the third protruding section and the fourth protruding section are connected.

Further, the convex high points of the convex parts are matched with the convex low points of the flanges, and the convex low points of the convex parts are matched with the convex high points of the flanges.

Further, the second valve plate shaft is arranged in the middle of one side, far away from the reducing section, of the valve plate, the second valve plate shaft is arranged in parallel with the first valve plate shaft, and the swing angle of the valve plate relative to the second valve plate shaft is 5-20 degrees.

Further, the counterweight device comprises a counterweight rod and a counterweight block detachably arranged on the counterweight rod, one end of the counterweight rod is rotatably connected with the end part of the first valve plate shaft, and an angle adjusting component is arranged at one end, close to the first valve plate shaft, of the counterweight rod and used for adjusting the inclination angle of the counterweight rod.

Furthermore, the angle adjusting assembly comprises a fixed disc and an adjusting disc, the fixed disc is fixedly arranged on the first valve plate shaft, the adjusting disc is rotatably arranged at the end part of the first valve plate shaft, and one end, close to the first valve plate shaft, of the counterweight rod is connected with the adjusting disc; the fixed disc is provided with a first adjusting hole group, the first adjusting hole group is arranged in an arc shape by taking the first valve plate shaft as a circle center, and the adjusting disc is provided with a second adjusting hole group matched with the first adjusting hole group.

Further, the valve plate has a swing angle of 10 ° with respect to the second valve plate shaft.

The embodiment of the utility model provides a beneficial effect is:

the flap valve provided by the embodiment of the utility model can make the valve plate drive the connecting rod to rotate by taking the first valve plate shaft as a rotating axis when being influenced by the gravity of the material, and drive the counterweight device connected with the first valve plate shaft to synchronously move when the first valve plate shaft rotates, so that the valve is opened, and when the material continuously falls on the valve plate, the valve plate can make reciprocating swing by taking the second valve plate shaft as a rotating axis, so that the gravity difference generated when a part of the material falls is unloaded, thereby ensuring that the connecting rod of the valve is kept different in an opening state, and the counterweight device is integrally kept still; after the materials are unloaded, the valve is automatically reset and closed under the action of the counterweight device, so that the valve is closed.

Through the design, the stability of the counterweight device is greatly improved, the problems of swing beating, easy bending and breakage of the counterweight rod of the traditional flap valve are solved, and the service life of the counterweight device is greatly prolonged.

Generally, the embodiment of the utility model provides a flap valve, its simple structure, when the less valve that can very big degree is opened, the influence of valve plate to the balancing weight is strikeed in the material whereabouts, increase of service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a reducing section according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an expanding section provided by an embodiment of the present invention

Fig. 5 is a schematic view of an expanded structure of the reducing section according to an embodiment of the present invention;

fig. 6 is a schematic view of an expanded structure of an expanding section according to an embodiment of the present invention;

fig. 7 is a schematic view of a swing angle of a valve plate according to an embodiment of the present invention;

fig. 8 is an enlarged view of a portion a in fig. 1.

Icon: 1-valve plate, 10-valve body, 11-expanding section, 12-reducing section, 20-first valve plate shaft, 30-second valve plate shaft, 40-connecting rod, 50-counterweight device, 51-counterweight rod, 52-counterweight block, 60-flange, 61-first bulge section, 62-second bulge section, 70-bulge, 71-third bulge section, 72-fourth bulge section, 80-angle adjusting component, 81-fixed disk, 82-adjusting disk, 83-first adjusting hole group, 84-second adjusting hole group, 90-maintenance cover and 100-cleaning door.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

Examples

Referring to fig. 1-8, the present embodiment provides a flap valve including a valve plate 1, a valve body 10, a first valve plate shaft 20, a second valve plate shaft 30, a connecting rod 40, a weight device 50, a flange 60, a boss 70, an angle adjusting assembly 80, a maintenance cover 90 and a cleaning door 100.

The first valve plate shaft 20 is rotatably arranged on the valve body 10, the counterweight device 50 is connected to the first valve plate shaft 20, the second valve plate shaft 30 is rotatably arranged on the valve plate 1, one end of the connecting rod 40 is connected with the first valve plate shaft 20, and the other end is connected with the second valve plate shaft 30; the valve plate 1 is influenced by the gravity of the material and can drive the first valve plate shaft 20 to rotate, so that the valve is opened, and along with the falling of the material, the valve plate 1 can swing in a reciprocating mode by taking the second valve plate shaft 30 as a rotating axis.

It should be noted that in the present embodiment, the two ends of the first valve plate shaft 20 penetrate through the valve body 10 through the bearing seat, and the counterweight device 50 is located outside the valve body 10 and connected with the end of the first valve plate shaft 20.

When the valve is influenced by the gravity of a material, the valve plate 1 drives the connecting rod 40 to rotate by taking the first valve plate shaft 20 as a rotating axis, the first valve plate shaft 20 rotates and simultaneously drives the counterweight device 50 connected with the first valve plate shaft to synchronously move, so that the valve is opened, and when the material continuously falls on the valve plate 1, the valve plate 1 can make reciprocating swing by taking the second valve plate shaft 30 as the rotating axis, so that the gravity difference generated when a part of the material falls is unloaded, the connecting rod 40 is ensured to be different in the opening state of the valve, and the counterweight device 50 is integrally kept motionless; after the materials are unloaded, the valve is automatically reset and closed under the action of the counterweight device 50, so that the valve is closed.

Through the design, the stability of the counterweight device 50 is greatly improved, the problems of swing beating, easy bending and breakage of the counterweight rod 51 of the traditional flap valve are solved, and the service life of the counterweight device 50 is greatly prolonged.

In this embodiment, the sealed form between first valve plate axle 20 and the valve body 10 is graphite packing, can conveniently adjust and change according to the in-service use condition to avoid valve body 10 edge leakage, reduce the wearing and tearing of first valve plate axle 20, make first valve plate axle 20 rotate more nimble, sealing performance is better simultaneously.

In the present embodiment, in order to improve the stability of the valve plate movement, two connecting rods 40 are provided and are respectively disposed at two ends of the second valve plate shaft 30, and one ends of the two connecting rods 40 away from the second valve plate shaft 30 are respectively connected with two ends of the first valve plate shaft 20.

In addition, in this embodiment, the inner lining of the valve body 10 is formed by pouring high-strength wear-resistant pouring material combined by calcium aluminate cement, the thickness of the pouring material is larger than or equal to 100mm, and after the pouring is finished, the inner lining of the flap valve is baked at high temperature through slow temperature rise, so that the inner lining of the flap valve has the characteristics of high strength, high-temperature corrosion resistance and the like, and the skinning phenomenon is greatly reduced.

Further, the valve body 10 comprises an expanding section 11 and a reducing section 12, and the valve plate 1 is located on the expanding section 11, so that the valve plate 1 seals the port of the reducing section 12, and the valve body 10 is in a closed state.

In this embodiment, the valve plate 1 as a whole can completely cover the reduced diameter section 12, thereby realizing the opening and closing of the valve.

Further, the end wall of the diameter reducing section near one end of the diameter expanding section 11 is provided with a flange 60 along the axial direction, and the flanges 60 are distributed along the circumferential direction of the diameter reducing section 12.

Referring to fig. 5, the flange 60 includes a first protrusion section 61 and a second protrusion section 62 connected to each other, the protrusion height of the first protrusion section 61 increases along the circumferential direction of the reduced diameter section 12, the protrusion height of the second protrusion section 62 decreases along the circumferential direction of the reduced diameter section 12, and the protrusion height points of the first protrusion section 61 and the second protrusion section 62 are connected. The convex low points of the first convex section 61 and the second convex section 62 are connected; specifically, the convex low points of the first convex section 61 and the second convex section 62 are both zero.

Referring to fig. 6, a protruding portion 70 is axially disposed on an end surface of the diameter expanding section 11 close to one end of the diameter reducing section 12, the protruding portion 70 includes a third protruding section 71 and a fourth protruding section 72 that are connected to each other, the protruding height of the third protruding section 71 increases along the circumferential direction of the diameter reducing section 12, the protruding height of the fourth protruding section 72 decreases along the circumferential direction of the diameter reducing section 12, the protruding high points of the third protruding section 71 and the fourth protruding section 72 are connected, and the protruding low points of the third protruding section 71 and the fourth protruding section 72 are connected; specifically, the convex low points of third convex segment 71 and fourth convex segment 72 are both zero. The convex high points of the convex portions 70 are matched with the convex low points of the flanges 60, and the convex low points of the convex portions 70 are matched with the convex high points of the flanges 60.

In this embodiment, the first convex section 61 and the second convex section 62 are symmetrically arranged, and the third convex section 71 and the fourth convex section 72 are symmetrically arranged.

In this embodiment, the central axis of the counterweight device 50 is perpendicular to the central axis of the connecting rod 40, so that the moment applied to the counterweight device 50 can be further reduced, the counterweight device 50 is prevented from being damaged after long-term use, and the service life of the counterweight device 50 is prolonged.

Through above-mentioned design, can make valve plate 1 make at the 12 ports of airtight reducing section, whole valve plate 1 is in the tilt state, can make the material when the whereabouts, the gravity action of material is on the inclined plane of valve plate 1, when valve plate 1 has slight removal under the influence of material gravity, the valve will be in the open mode to the flexibility that makes the valve is higher. And, when valve plate 1 inclines and sets up, connecting rod 40 is in the tilt state in step, because the central axis of counter weight device 50 is perpendicular with the central axis of connecting rod 40, when valve plate 1 fine motion made the valve open, whole counter weight device 50's amplitude of oscillation was very little, under the circumstances of guaranteeing the valve to open, further reduced counter weight device 50's the amplitude of oscillation to prolong counter weight device 50's practical life.

Further, a second valve plate shaft 30 is arranged in the middle of one side of the valve plate, which is far away from the reducing section 12, the second valve plate shaft 30 is arranged in parallel with the first valve plate shaft 20, and the swing angle of the valve plate 1 relative to the second valve plate shaft 30 is 5-20 degrees; specifically, the swing angle is 10 °.

Referring to fig. 7, the swing angle between valve plate 1 and second valve plate shaft 30 is a half rotation angle D of valve plate 1.

It should be noted that in the present embodiment, the swing angle between the valve plate 1 and the second valve plate shaft 30 can be realized by limiting members, and the two limiting members are respectively disposed on two sides of the second valve plate shaft 30, so as to limit the rotation angle of the valve plate 1, and thus the valve plate 1 can swing; in the actual use process, other limiting structures can be adopted to limit the valve plate 1, and the details are not repeated here.

Through the design, can be when valve plate 1 moves to the valve and is in the open mode, valve plate 1 has certain home range for second valve plate axle 30, in the in-process that the material lasts the whereabouts, because the gravity of material changes at any time, material gravity acts on valve plate 1, make valve plate 1 carry out reciprocating type swing for second valve plate axle 30, thereby eliminate the swing that material gravity change produced, eliminate the influence of gravity through the swing between valve plate 1 and the second valve plate axle 30, thereby make connecting rod 40 remain in a stable state all the time, and then make counter weight device 50 keep in relatively stable state, thereby avoided counter weight device 50 to last the swing in the use, and produce the risk of bending, fracture.

Further, the counterweight device 50 includes a counterweight rod 51 and a counterweight 52 detachably disposed on the counterweight rod 51, one end of the counterweight rod 51 is rotatably connected to the end of the first valve plate shaft 20, and an angle adjusting assembly 80 is disposed at one end of the counterweight rod 51 close to the first valve plate shaft 20, for adjusting an inclination angle of the counterweight rod 51.

Referring to fig. 8, the angle adjusting assembly 80 includes a fixed disk 81 and an adjusting disk 82, the fixed disk 81 is fixedly disposed on the first valve plate shaft 20, the adjusting disk 82 is rotatably disposed on an end portion of the first valve plate shaft 20, and one end of the counterweight rod 51 close to the first valve plate shaft 20 is connected to the adjusting disk 82; the fixed disk 81 is provided with a first adjusting hole group 83, the first adjusting hole group 83 is arranged in an arc shape with the first valve plate shaft 20 as a circle center, and the adjusting disk 82 is provided with a second adjusting hole group 84 matched with the first adjusting hole group 83.

It should be noted that in this embodiment, in order to facilitate the relative rotation of the fixed disk 81 and the adjusting disk 82 for adjustment, the fixed disk 81 and the adjusting disk 82 may adopt a circular or arc structure, specifically, in this embodiment, the fixed disk 81 and the adjusting disk 82 are in an arc structure, the fixed disk 81 is disposed through an arc center with the first adjusting hole group 83, and the adjusting disk 82 is disposed concentrically with the second adjusting hole group 84.

It should be further noted that, in the actual use process, the fixing manner between the fixed disk 81 and the adjusting disk 82 may be a bolt, or the like, in this embodiment, when the counterweight rod 51 is rotated to rotate the adjusting disk 82 with the first valve plate shaft 20 as the rotation axis, the relative position between the adjusting disk 82 and the fixed disk 81 is changed, because the first adjusting hole group 83 and the second adjusting hole group 84 are correspondingly arranged, after the relative position between the fixed disk 81 and the adjusting disk 82 is changed, some holes in the first adjusting hole group 83 and the second adjusting hole group 84 are in an overlapped state, and at this time, the bolt is detached into any overlapped hole to fix the positions of the fixed disk 81 and the adjusting disk 82.

In addition, in this embodiment, the mode that can dismantle of balancing weight 52 and counterweight rod 51 can adopt the bolt, and it has the through-hole that matches with counterweight rod 51 to open on the balancing weight 52, is equipped with the bolt on the balancing weight 52, and counterweight rod 51 has seted up several and bolt complex screw hole along its axial, installs counterweight 52 on counterweight rod 51 after, through screwing up the bolt, makes the bolt get into one of them screw hole of counterweight rod 51 to realize counterweight 52's fixed. In addition, in the actual use process, the number of the balancing weights 52 can be increased or decreased according to different materials conveyed by the valve, so that the opening threshold value of the valve is controlled.

In the present embodiment, in order to improve the rotational stability of the first valve plate shaft 20, the number of the counterweight devices 50 is two, and two counterweight devices 50 are respectively disposed at two ends of the first valve plate shaft 20.

In this embodiment, the valve body 10 is provided with a maintenance cover 90, which facilitates maintenance of the components in the valve body 10.

Valve body 10 is equipped with clearance door 100, and clearance door 100 is located 1 below of valve plate, can carry out regular clearance to adnexed material on the valve plate, avoids the valve plate to glue glutinous material.

The operating principle of the flap valve is as follows: under the normal condition, under the influence of the gravity of the counterweight device 50, the first valve plate shaft 20 drives the valve plate 1 to abut against the reducing section 12, so that the valve is in a closed state, after a material enters from the reducing section 12, the material firstly falls on the valve plate 1, the gravity of the material is gradually increased along with the increase of the material, after the surface stress of the valve plate 1 is greater than the gravity of the counterweight block 52, the valve plate 1 drives the connecting rod 40 to drive the first valve plate shaft 20 to rotate, the first valve plate shaft 20 drives the counterweight device 50 to synchronously move, at the moment, the valve is in an open state, at the moment, the material enters into the expanding section 11 from the reducing section 12 to realize material conveying, and in the process that the material continuously falls on the valve plate 1, the valve plate 1 and the second valve plate shaft 30 are driven to swing in a reciprocating mode by the rotating axes due to the gravity difference, so that; when the material is unloaded, the first valve plate shaft 20 rotates reversely under the action of the counterweight device 50, so that the valve plate 1 moves to abut against the port of the reducing section 12, and the valve is closed.

To sum up, the utility model discloses its simple structure, when the less valve that can very big degree was opened, the influence of valve plate to the balancing weight is strikeed in the material whereabouts, increase of service life.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A flap valve, comprising: the valve comprises a valve body, a first valve plate shaft, a second valve plate shaft, a valve plate, a connecting rod and a counterweight device, wherein the first valve plate shaft is rotatably arranged on the valve body; the valve plate is influenced by material gravity and can drive first valve plate axle rotates, makes the valve open, and along with the material whereabouts, the valve plate can use second valve plate axle is the reciprocating type swing of rotation axis.

2. The flap valve according to claim 1, wherein the valve body includes an enlarged diameter section and a reduced diameter section, the valve plate being located at the enlarged diameter section such that the valve plate seals the port of the reduced diameter section to place the valve body in a closed state.

3. The flap valve according to claim 2, characterized in that the end wall of said reduced diameter section adjacent to one end of said expanded diameter section is provided with a flange in the axial direction thereof, said flange being circumferentially distributed along said reduced diameter section.

4. The flap valve according to claim 3, wherein the flange includes a first convex section and a second convex section connected to each other, the first convex section having a gradually increasing height along the circumferential direction of the reduced diameter section, the second convex section having a gradually decreasing height along the circumferential direction of the reduced diameter section, and the convex height points of the first convex section and the second convex section are connected.

5. The flap valve according to claim 4, characterized in that the convex low points of the first and second convex sections are connected.

6. The flap valve according to any one of claims 3 to 5, wherein a protrusion is provided on an end surface of the diameter expanding section near one end of the diameter reducing section along an axial direction thereof, the protrusion includes a third protrusion section and a fourth protrusion section connected to each other, a height of the third protrusion section increases progressively along a circumferential direction of the diameter reducing section, a height of the fourth protrusion section decreases progressively along the circumferential direction of the diameter reducing section, a height of the third protrusion section is connected to a height of the fourth protrusion section, and a lower height of the third protrusion section is connected to a lower height of the fourth protrusion section.

7. A flap valve according to claim 6, characterized in that the raised high points of the raised portions cooperate with the raised low points of the flange, and the raised low points of the raised portions cooperate with the raised high points of the flange.

8. The flap valve according to claim 2, wherein the second valve plate shaft is disposed at a middle portion of a side of the valve plate away from the reducing section, and the second valve plate shaft is disposed in parallel with the first valve plate shaft, and the valve plate swings at an angle of 5-20 ° with respect to the second valve plate shaft.

9. The flap valve according to claim 1, wherein the weight device comprises a weight rod and a weight block detachably disposed on the weight rod, one end of the weight rod is rotatably connected to the end portion of the first valve plate shaft, and an angle adjusting assembly is disposed at an end of the weight rod close to the first valve plate shaft for adjusting an inclination angle of the weight rod.

10. The flap valve according to claim 9, wherein the angle adjusting assembly comprises a fixed disk and an adjusting disk, the fixed disk is fixedly arranged on the first valve plate shaft, the adjusting disk is rotatably arranged at the end part of the first valve plate shaft, and one end of the counterweight rod close to the first valve plate shaft is connected with the adjusting disk; the fixed disc is provided with a first adjusting hole group, the first adjusting hole group is arranged in an arc shape by taking the first valve plate shaft as a circle center, and the adjusting disc is provided with a second adjusting hole group matched with the first adjusting hole group.

11. The flap valve according to claim 8, characterized in that the valve plate has an angle of oscillation of 10 ° with respect to the second valve plate axis.

Images