CN219159558U

CN219159558U - Pneumatic flap type feed valve

Info

Publication number: CN219159558U
Application number: CN202320069398.9U
Authority: CN
Inventors: 李元勇
Original assignee: Jinan Zhongda Environmental Protection Technology Co ltd
Current assignee: Jinan Zhongda Environmental Protection Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-09
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of valves, in particular to a pneumatic turning plate type feeding valve, wherein a rotating shaft is rotatably arranged at the position of the inner middle part of a valve body, a first valve clack is fixed at the position, close to the lower end, of the outer side of the rotating shaft, a second valve clack is fixed at the position, close to the upper end, of the outer side of the rotating shaft, a first limiting seat matched with the first valve clack is fixed at the position, close to the upper end, of the inner wall of the valve body, and a second limiting seat matched with the second valve clack is fixed at the position, close to the lower end, of the inner wall of the valve body. According to the utility model, the rotating shaft is driven to rotate by the transmission piece, the first valve clack and the second valve clack are driven to rotate by the rotating shaft, the limiting of the first valve clack and the second valve clack during sealing is realized under the arrangement of the first limiting seat and the second limiting seat, and the wear of the butt joint of the first valve clack and the second valve clack is avoided to the greatest extent by the dislocation arrangement of the first valve clack and the second valve clack, so that the service life of equipment is prolonged, and the sealing effect is improved.

Description

Pneumatic flap type feed valve

Technical Field

The utility model relates to the technical field of valves, in particular to a pneumatic turning plate type feed valve.

Background

The valve is a control component in the fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting flow or overflow pressure relief and the like, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. At present, a main form of a domestic feeding valve is a gate valve, and the valve is usually driven by a cylinder to linearly slide on a sealing surface of a passage opening to realize the action of opening and closing the valve, and the requirements on the wear resistance and the sealing performance of the contact surface are higher.

However, the conventional valve has high sealing requirements on the butt joint surface, and the abrasion is serious after long-term use, so that the later sealing performance of the equipment is affected. Accordingly, a pneumatic flap type feed valve is provided by those skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to provide a pneumatic turnover plate type feed valve so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pneumatic panel turnover feed valve, includes the valve body, the interior middle part position department of valve body rotates installs the pivot, the outside of pivot is close to lower extreme position department and is fixed with first valve clack, and the outside of pivot is close to upper end position department and be fixed with the second valve clack, the inner wall of valve body is close to upper end position department and is fixed with the first spacing seat with first valve clack adaptation, and the inner wall of valve body is close to lower extreme position department and be fixed with the second spacing seat with the second valve clack adaptation, the outside of valve body is equipped with the driving medium that is used for driving the pivot pivoted.

As a further aspect of the present utility model: the transmission piece is including fixing the cylinder in the valve body outside, the flexible end of cylinder articulates there is the actuating lever, the upper end movable mounting of actuating lever has the connecting rod, the one end of pivot runs through the valve body and cup joints through fixed with the connecting rod between.

As a further aspect of the present utility model: the first limiting seat and the second limiting seat are centrally symmetrical with respect to the rotating shaft, and buffer pads are fixed on the lower surface of the first limiting seat and the upper surface of the second limiting seat.

As a further aspect of the present utility model: the valve body is of a spherical structure, the upper end of the valve body is provided with an inlet pipe, the lower end of the valve body is provided with an outlet pipe, and the valve body, the inlet pipe and the outlet pipe are formed by integral casting.

As a further aspect of the present utility model: the first valve clack and the second valve clack are of semicircular structures, and the first valve clack, the second valve clack and the rotating shaft are fixed through welding.

As a further aspect of the present utility model: the outer surface of the valve body is provided with a wear-resistant layer, and the wear-resistant layer is formed by spraying a coating made of epoxy resin.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the rotating shaft is driven to rotate by the transmission piece, the first valve clack and the second valve clack are driven to rotate by the rotating shaft, the limiting of the first valve clack and the second valve clack during sealing is realized under the arrangement of the first limiting seat and the second limiting seat, and the wear of the butt joint of the first valve clack and the second valve clack is avoided to the greatest extent by the dislocation arrangement of the first valve clack and the second valve clack, so that the service life of equipment is prolonged, and the sealing effect is improved.

Drawings

FIG. 1 is a schematic diagram of a pneumatic flap feed valve;

FIG. 2 is a schematic view of the internal structure of a pneumatic flap feed valve;

fig. 3 is a schematic structural view of a driving member in a pneumatic flap type feed valve.

In the figure: 1. a valve body; 2. an inlet pipe; 3. an outlet tube; 4. a cylinder; 5. a rotating shaft; 6. a first valve flap; 7. a second valve flap; 8. the first limiting seat; 9. the second limiting seat; 10. a connecting rod; 11. and a driving rod.

Detailed Description

Referring to fig. 1-3, in the embodiment of the utility model, a pneumatic flap type feeding valve comprises a valve body 1, a rotating shaft 5 is rotatably installed at the inner middle position of the valve body 1, a first valve clack 6 is fixed at the outer side of the rotating shaft 5 near the lower end position, a second valve clack 7 is fixed at the outer side of the rotating shaft 5 near the upper end position, a first limit seat 8 matched with the first valve clack 6 is fixed at the inner wall of the valve body 1 near the upper end position, a second limit seat 9 matched with the second valve clack 7 is fixed at the inner wall of the valve body 1 near the lower end position, a transmission part for driving the rotating shaft 5 to rotate is arranged at the outer side of the valve body 1, the rotating shaft 5 is driven to rotate through the transmission piece, so that the first valve clack 6 and the second valve clack 7 rotate, the upper surface of the first valve clack 6 is further propped against the lower surface of the first limiting seat 8, the lower surface of the second valve clack 7 is propped against the upper surface of the second limiting seat 9, limiting when the first valve clack 6 and the second valve clack 7 are sealed is achieved under the arrangement of the first limiting seat 8 and the second limiting seat 9, the dislocation arrangement of the first valve clack 6 and the second valve clack 7 is adopted, abrasion of the butt joint of the first valve clack 6 and the second valve clack 7 is avoided to the greatest extent, the service life of equipment is prolonged, and the sealing effect is improved.

In fig. 1 and 3, the driving medium includes the cylinder 4 of fixing in the valve body 1 outside, and the flexible end of cylinder 4 articulates there is actuating lever 11, and actuating lever 11's upper end movable mounting has connecting rod 10, and the one end of pivot 5 runs through valve body 1 and cup joints through fixed between with connecting rod 10, starts cylinder 4, drives actuating lever 11 activity through cylinder 4, drives connecting rod 10 through actuating lever 11 and rotates, further makes pivot 5 rotate to make first valve clack 6, second valve clack 7 rotate.

In fig. 2, the first limiting seat 8 and the second limiting seat 9 are central symmetrical with respect to the rotating shaft 5, and the lower surface of the first limiting seat 8 and the upper surface of the second limiting seat 9 are both fixed with a cushion pad, so that the sealing performance of the device is improved through the arrangement of the cushion pad.

In fig. 1 and 2, valve body 1 is spherical structure, and the upper end of valve body 1 is equipped with intake pipe 2, and the lower extreme of valve body 1 is equipped with outlet pipe 3, and through integrative casting shaping between valve body 1, intake pipe 2, the outlet pipe 3, improves the holistic sealing performance of equipment, and the surface of valve body 1 is equipped with the wearing layer, and the wearing layer is the coating spraying of epoxy material and forms, improves the wearing performance of equipment, extension equipment's life.

In fig. 3, the first valve clack 6 and the second valve clack 7 are both in semicircular structures, and the first valve clack 6, the second valve clack 7 and the rotating shaft 5 are fixed by welding, and are mainly used for fixing the first valve clack 6 and the second valve clack 7.

The working principle of the utility model is as follows: when in use, the cylinder 4 is started, the driving rod 11 is driven to move through the cylinder 4, the driving rod 10 is driven to rotate through the driving rod 11, the rotating shaft 5 is further caused to rotate, the first valve clack 6 and the second valve clack 7 are further caused to rotate, the upper surface of the first valve clack 6 is further caused to abut against the lower surface of the first limiting seat 8, the lower surface of the second valve clack 7 is caused to abut against the upper surface of the second limiting seat 9, the limiting of the sealing of the first valve clack 6 and the second valve clack 7 is realized under the arrangement of the first limiting seat 8 and the second limiting seat 9, the dislocation arrangement of the first valve clack 6 and the second valve clack 7 is used for furthest avoiding the abrasion of the abutting joint of the first valve clack 6 and the second valve clack 7, so that the service life of equipment is prolonged, and the sealing effect is improved.

Claims

1. The utility model provides a pneumatic flap feed valve, includes valve body (1), its characterized in that, interior middle part position department of valve body (1) rotates installs pivot (5), the outside of pivot (5) is close to lower extreme position department and is fixed with first valve clack (6), and the outside of pivot (5) is close to upper end position department and is fixed with second valve clack (7), the inner wall of valve body (1) is close to upper end position department and is fixed with first spacing seat (8) with first valve clack (6) adaptation, and the inner wall of valve body (1) is close to lower extreme position department and is fixed with second spacing seat (9) with second valve clack (7) adaptation, the outside of valve body (1) is equipped with the driving medium that is used for driving pivot (5) pivoted.

2. A pneumatic flap type feeding valve according to claim 1, characterized in that the transmission member comprises a cylinder (4) fixed on the outer side of the valve body (1), a driving rod (11) is hinged to the telescopic end of the cylinder (4), a connecting rod (10) is movably mounted at the upper end of the driving rod (11), and one end of the rotating shaft (5) penetrates through the valve body (1) and is fixedly sleeved with the connecting rod (10).

3. The pneumatic flap type feeding valve according to claim 1, wherein the first limiting seat (8) and the second limiting seat (9) are centrally symmetrical with respect to the rotating shaft (5), and buffer pads are fixed on the lower surface of the first limiting seat (8) and the upper surface of the second limiting seat (9).

4. The pneumatic flap type feeding valve according to claim 1, wherein the valve body (1) is of a spherical structure, an inlet pipe (2) is arranged at the upper end of the valve body (1), an outlet pipe (3) is arranged at the lower end of the valve body (1), and the valve body (1), the inlet pipe (2) and the outlet pipe (3) are formed by integral casting.

5. A pneumatic flap type feed valve according to claim 1, characterized in that the first valve clack (6) and the second valve clack (7) are both in semicircular structures, and the first valve clack (6), the second valve clack (7) and the rotating shaft (5) are fixed by welding.

6. A pneumatic flap feed valve according to claim 1, characterized in that the outer surface of the valve body (1) is provided with a wear-resistant layer, which is formed by spraying a coating of an epoxy resin material.