CN218625449U

CN218625449U - Flap valve mechanism and bottom discharge apparatus

Info

Publication number: CN218625449U
Application number: CN202222762804.8U
Authority: CN
Inventors: 王猛; 谭立; 刘辉; 涂阳浩
Original assignee: Hunan Honggong Intelligent Technology Co Ltd
Current assignee: Hunan Honggong Intelligent Technology Co Ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-03-14
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a flap valve mechanism, which relates to the field of bottom discharging equipment and comprises a valve body, wherein a valve hole is arranged on the valve body, and the diameter of the edge of the valve hole is gradually increased from top to bottom; the valve plate, the valve plate can be opened and close the valve opening, the cover is equipped with the sealing washer on the valve plate, the diameter of the outward flange of sealing washer from top to bottom crescent setting to and actuating mechanism, actuating mechanism includes driving source, flap axle and turning arm, the driving source with flap axle drive connects, the flap axle with turning arm fixed connection, the driving source can drive the flap axle rotates, the flap axle can drive the turning arm swing, the turning arm with the valve plate is connected. The utility model also discloses a bottom discharge apparatus. The valve plate of the flap valve mechanism has good sealing effect on the valve hole.

Description

Flap valve mechanism and bottom discharge apparatus

Technical Field

The utility model relates to a bottom discharge apparatus field, concretely relates to flap valve mechanism and bottom discharge apparatus.

Background

The discharge opening department of current bottom discharge apparatus all is equipped with the valve, butterfly valve or flap valve are often adopted to this valve, the rotatory required space of valve plate need be reserved to the butterfly valve bottom, therefore the influence effect of butterfly valve part material can't mix down, can't effectively satisfy the requirement of material misce bene, and to the flap valve structure, bottom discharge apparatus is when unloading, the flap valve structure adopts the mode of overturning outward to the discharge opening to open the valve plate, therefore, the flap valve structure can realize not having material and mix the dead angle, but, the valve plate of present flap valve is not good to the sealed effect of valve opening, furthermore, wholly adopt welded connected mode with the barrel usually, because the barrel size is big and the shape is irregular, the welding flap valve post-processing degree of difficulty is big, and among the welding process, take place the dislocation welding easily, the condition of deformation when rivet welding and the full weld, thereby further influenced the sealed effect of valve plate to the valve opening.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model discloses a one of them aim at provides a flap valve mechanism, and this flap valve mechanism's valve plate is effectual to the sealed of valve opening.

The utility model discloses a following technical scheme realizes:

a flap valve mechanism comprises a valve body, wherein a valve hole is formed in the valve body, and the diameter of the edge of the valve hole is gradually increased from top to bottom; the valve plate can open and close the valve hole, a sealing ring is sleeved on the valve plate, the diameter of the outer edge of the sealing ring is gradually increased from top to bottom, and when the valve hole is closed, the sealing ring can seal a gap between the valve hole and the valve plate; and a drive mechanism capable of driving the valve plate to open and close the valve hole, the drive mechanism including a drive source, a flap shaft, and a crank arm, the drive source being drivingly connected to the flap shaft, the turning plate shaft is fixedly connected with the connecting lever, the driving source can drive the turning plate shaft to rotate, the turning plate shaft can drive the connecting lever to swing, and the connecting lever is connected with the valve plate; when the valve hole is closed, the crank arm drives the valve plate to swing towards one side of the valve hole, and the valve plate seals the valve hole; when the valve hole is opened, the crank arm drives the valve plate to swing towards the side opposite to the valve hole, and the valve plate is separated from the valve hole.

Preferably, a cavity is formed in the valve body, the cavity penetrates through the bottom of the valve body, and the valve hole is communicated with the cavity.

Preferably, both sides of the flap shaft penetrate through the valve body, and both sides of the flap shaft penetrating through the valve body are respectively provided with a first bearing and a second bearing.

Preferably, the two sides of the flap shaft are arranged on the valve body, the two sides of the flap shaft and a gap between the valve body are respectively provided with a first dust ring and a second dust ring, and the flap shaft is sleeved with the first dust ring and the second dust ring.

Preferably, a shaft sleeve is arranged at one end of the flap shaft close to the second bearing.

Preferably, an end cover is arranged on one side, close to the second bearing, of the valve body, the end cover is detachably connected with the valve body, and the end cover can cover the position, through which the flap shaft penetrates through the valve body, of the flap shaft.

Preferably, the crank arm is provided with a square hole, the flap shaft penetrates through the square hole, and the shape of the part of the flap shaft located in the square hole is matched with the shape of the square hole.

Preferably, a purging component is arranged on the valve body and is arranged below the valve hole.

Preferably, the valve plate matches the size of the valve hole.

Another object of the utility model is to provide a bottom discharge apparatus.

The bottom discharging device comprises a barrel and the flap valve mechanism, wherein the barrel is detachably connected with the flap valve mechanism, a discharging opening is formed in the barrel, and a valve hole is aligned to the discharging opening.

Compared with the prior art, the beneficial effects of the utility model reside in that: the flap valve mechanism of the utility model is provided with a driving mechanism, under the action of a driving source, the flap shaft and the connecting lever act cooperatively to drive the valve plate to move towards the direction close to or far away from the valve hole so as to open or close the valve hole, thus realizing the dead-angle-free mixing and effective discharging of materials; the diameters of the edge of the valve hole and the outer edge of the sealing ring are gradually increased from top to bottom, so that the sealing effect of the valve plate on the valve hole can be effectively improved; the utility model discloses an adopt this flap valve mechanism and barrel to dismantle and be connected in the bottom discharge apparatus, can realize quick whole installing and removing, more nimble, do benefit to the sealed effect that improves the valve plate to the valve opening, make things convenient for the later stage to change the maintenance, improved the convenience that the complete machine was maintained greatly.

Drawings

Fig. 1 is a schematic view of the flap valve mechanism according to the embodiment of the present invention.

Fig. 2 is a schematic diagram of the flap valve mechanism according to the embodiment of the present invention for opening and closing the valve hole laterally.

Fig. 3 is a schematic front structural view of a flap valve mechanism according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a in fig. 3.

Fig. 5 is an enlarged view of B in fig. 3.

Reference numerals are as follows: 1. a valve body; 2. a valve bore; 3. a panel turnover shaft; 4. a valve plate; 5. a seal ring; 6. a crank arm; 7. a first bearing; 8. a second bearing; 9. a first dust ring; 10. a second dust ring; 11. a shaft sleeve; 12. a purge assembly; 13. an end cap; 14. a square hole; 15. a cylinder body; 16. a cavity.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1-5, the utility model provides a flap valve mechanism, include: the valve comprises a valve body 1, wherein a valve hole 2 is formed in the valve body 1, and the diameter of the edge of the valve hole 2 is gradually increased from top to bottom; the valve plate 4 can open and close the valve hole 2, the valve plate 4 is sleeved with a sealing ring 5, the diameter of the outer edge of the sealing ring 5 is gradually increased from top to bottom, and when the valve hole 2 is closed, the sealing ring 5 can seal a gap between the valve hole 2 and the valve plate 4; the driving mechanism can drive the valve plate 4 to open and close the valve hole 2, the driving mechanism comprises a driving source, a flap shaft 3 and a connecting lever 6, the driving source is in transmission connection with the flap shaft 3, the flap shaft 3 is fixedly connected with the connecting lever 6, the driving source can drive the flap shaft 3 to rotate, the flap shaft 3 can drive the connecting lever 6 to swing, and the connecting lever 6 is connected with the valve plate 4; when the valve hole 2 is closed, the crank arm 6 drives the valve plate 4 to swing towards one side of the valve hole 2, and the valve plate 4 seals the valve hole 2; when the valve hole 2 is opened, the crank arm 6 swings the valve plate 4 toward the side opposite to the valve hole 2, and the valve plate 4 is separated from the valve hole 2.

The flap valve mechanism of the embodiment is provided with a driving mechanism, and under the action of a driving source, the flap shaft 3 and the crank arm 6 cooperate to drive the valve plate 4 to move towards the direction close to or far away from the valve hole 2 so as to open or close the valve hole 2, so that the materials are mixed without dead angles and effectively discharged; the flap valve mechanism can be integrally machined to ensure the design requirement, the manufacturing difficulty is reduced, and the precision of each size of each part is effectively ensured; the sealing surface of the flap valve mechanism adopts a structure which is gradually increased from top to bottom, the sealing ring 5 can realize uniform deformation, and the sealing effect of the flap valve mechanism is effectively improved.

Specifically, in the present embodiment, a cavity 16 is provided inside the valve body 1, the cavity 16 penetrates through the bottom of the valve body 1, and the valve hole 2 is communicated with the cavity 16; through being equipped with cavity 16 in the inside of valve body 1, the material of valve opening 2 whereabouts can be in the continuous even blanking of cavity 16 within range, avoids the material too dispersed.

Specifically, in the present embodiment, two sides of the flap shaft 3 are disposed through the valve body 1, and the first bearing 7 and the second bearing 8 are disposed on two sides of the flap shaft 3 through the valve body 1; the arrangement of the first bearing 7 and the second bearing 8 effectively provides the supporting and fixing function of the rotating part of the flap shaft 3, reduces the friction force of the flap shaft 3 in the moving process and ensures the rotation precision of the flap shaft.

Specifically, in the present embodiment, two sides of the flap shaft 3 are disposed on the valve body 1, a first dust ring 9 and a second dust ring 10 are respectively disposed in a gap between the two sides of the flap shaft 3 and the valve body 1, and the first dust ring 9 and the second dust ring 10 are sleeved on the flap shaft 3; when unloading, the arrangement of the first dust ring 9 and the second dust ring 10 can prevent materials from falling into the transmission assembly from gaps on two sides of the valve body 1, so that the abrasion of the transmission assembly is caused, and the operation of the flap valve mechanism is influenced.

Specifically, in the present embodiment, a shaft sleeve 11 is provided at one end of the flap shaft 3 close to the second bearing 8; the setting of axle sleeve 11 prevents that external acting force from causing the friction to turn over board axle 3 to reduce the wearing and tearing of 3 outer walls of turn over board axle, effectively prolong the life of turn over board axle 3, axle sleeve 11 still possesses axial positioning's effect to turn over board axle 3 simultaneously, effectively avoids the driving source drive to turn over board axle 3 and produces the offset after the motion, also with turn over board axle 3 with external harmful medium production effective isolation to turn over board axle 3, improved the durability of turn over board axle 3.

Specifically, in the present embodiment, an end cover 13 is disposed on one side of the valve body 1 close to the second bearing 8, the end cover 13 is detachably connected to the valve body 1, and the end cover 13 can cover the position where the flap shaft 3 penetrates through the valve body 1; the end cover 13 plays a role in protecting the second bearing 8, so that the safety is improved, and meanwhile, the end cover 13 is effectively matched with the first dust ring 9, the second dust ring 10 and the sealing ring 5, so that the dust resistance and the sealing property of the valve body 1 can be improved to a greater extent.

Specifically, in the present embodiment, the crank arm 6 is provided with a square hole 14, the flap shaft 3 passes through the square hole 14, and the shape of the part of the flap shaft 3 located in the square hole 14 matches the shape of the square hole 14; the square hole 14 arranged on the connecting lever 6 can realize the fixed connection of the connecting lever 6 and the flap shaft 3, and under the action of the driving source, the rotation of the flap shaft 3 is ensured to drive the connecting lever 6 to synchronously rotate, so that the opening and closing of the valve hole 2 are realized.

Specifically, in the present embodiment, the valve body 1 is provided with the purge component 12, and the purge component 12 is disposed below the valve hole 2; the purging component 12 is arranged to purge and remove the materials in the valve plate 4 or the cavity 16, so that the accumulation of a large amount of materials in the valve body 1 is effectively avoided.

More specifically, the valve plate 4 matches the size of the valve hole 2; the valve plate 4 and the valve hole 2 are matched in size, so that the valve plate and the valve hole can be better matched.

A bottom discharging device comprises a barrel body 15 and the flap valve mechanism, wherein the barrel body 15 is detachably connected with the flap valve mechanism, a discharging opening is formed in the barrel body 15, and a valve hole 2 is formed in a mode of aligning with the discharging opening; the flap valve mechanism is detachably connected with the barrel body 15, can be quickly and integrally assembled and disassembled, is more flexible, is beneficial to improving the sealing effect of the valve plate 4 on the valve hole 2, is convenient to replace and maintain in the later period, and greatly improves the convenience of maintenance of the whole machine.

The working principle of the bottom discharging device is as follows: the barrel 15 and the flap valve mechanism are detachably connected, the flap valve mechanism is integrally mounted and dismounted, and when the flap valve mechanism is damaged, the flap valve mechanism can be timely dismounted for maintenance or replacement, so that the flap valve mechanism is more flexible and beneficial to improving the sealing effect of the valve plate 4 on the valve hole 2. Bottom unloading equipment is at the in-process of work, valve plate 4 seals valve opening 2, when needing to unload, driving source drive flap shaft 3 rotates, 3 drive connecting lever 6 of flap shaft swing towards one side opposite with valve opening 2, valve plate 4 breaks away from valve opening 2, the material is unloaded from valve opening 2, after unloading, 3 drive connecting lever 6 swing towards one side of valve opening 2 of flap shaft, valve plate 4 seals valve opening 2, the sealed face between valve opening 2 of this flap valve mechanism and the valve plate 4 adopts the structure of up-to-down crescent, sealing washer 5 can the uniform deformation in order to seal the clearance between valve opening 2 and the valve plate 4, can effectively improve the sealed effect of valve plate 4 to valve opening 2.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A flap valve mechanism, comprising:

the valve body (1), wherein the valve hole (2) is formed in the valve body (1), and the diameter of the edge of the valve hole (2) is gradually increased from top to bottom;

the valve plate (4), the valve hole (2) can be opened and closed by the valve plate (4), a sealing ring (5) is sleeved on the valve plate (4), the diameter of the outer edge of the sealing ring (5) is gradually increased from top to bottom, and when the valve hole (2) is closed, the sealing ring (5) can seal a gap between the valve hole (2) and the valve plate (4); and

the valve plate (4) can be driven by the driving mechanism to open and close the valve hole (2), the driving mechanism comprises a driving source, a flap shaft (3) and a connecting lever (6), the driving source is in transmission connection with the flap shaft (3), the flap shaft (3) is fixedly connected with the connecting lever (6), the driving source can drive the flap shaft (3) to rotate, the flap shaft (3) can drive the connecting lever (6) to swing, and the connecting lever (6) is connected with the valve plate (4);

when the valve hole (2) is closed, the crank arm (6) drives the valve plate (4) to swing towards one side of the valve hole (2), and the valve plate (4) seals the valve hole (2);

when the valve hole (2) is opened, the crank arm (6) drives the valve plate (4) to swing towards the side opposite to the valve hole (2), and the valve plate (4) is separated from the valve hole (2).

2. The flap valve mechanism according to claim 1, characterized in that a cavity (16) is arranged inside the valve body (1), the cavity (16) penetrates through the bottom of the valve body (1), and the valve hole (2) is communicated with the cavity (16).

3. The flap valve mechanism according to claim 1, characterized in that both sides of the flap shaft (3) are provided through the valve body (1), and the flap shaft (3) is provided with a first bearing (7) and a second bearing (8) through both sides of the valve body (1), respectively.

4. The flap valve mechanism according to claim 3, characterized in that a first dust ring (9) and a second dust ring (10) are respectively arranged in a gap between two sides of the flap shaft (3) and the valve body (1), and the first dust ring (9) and the second dust ring (10) are sleeved on the flap shaft (3).

5. A flap valve mechanism according to claim 3, characterized in that a bushing (11) is provided at the end of the flap shaft (3) close to the second bearing (8).

6. The flap valve mechanism according to claim 3, wherein an end cap (13) is disposed on a side of the valve body (1) close to the second bearing (8), the end cap (13) is detachably connected to the valve body (1), and the end cap (13) can cover a position where the flap shaft (3) penetrates through the valve body (1).

7. The flap valve mechanism according to claim 1, characterized in that the connecting lever (6) is provided with a square hole (14), the flap shaft (3) passing through the square hole (14), the shape of the portion of the flap shaft (3) located in the square hole (14) matching the shape of the square hole (14).

8. The flap valve mechanism according to claim 1, characterized in that a purge assembly (12) is provided on the valve body (1), the purge assembly (12) being provided below the valve bore (2).

9. Flap valve mechanism according to claim 1, characterized in that the valve plate (4) is matched to the dimensions of the valve bore (2).

10. A bottom discharge apparatus, characterized by comprising a cylinder (15) and a flap valve mechanism according to any of claims 1-9, said cylinder (15) being detachably connected to said flap valve mechanism, said cylinder (15) being provided with a discharge opening, said valve opening (2) being arranged in alignment with said discharge opening.