Full-lining polytetrafluoroethylene electric butterfly valve

Abstract

The utility model discloses a full-lining polytetrafluoroethylene electric butterfly valve, which belongs to the technical field of butterfly valves, and comprises a valve body, a valve rod is arranged on the valve body, an electric device is arranged at the top of the valve rod, a valve rod is rotatably connected in the valve rod, one end of the valve rod penetrates through the valve body and is rotatably connected with a valve seat, the valve seat is fixed at the bottom of the valve body, and the valve rod is connected with the valve rod. A valve plate is arranged on the outer wall of the valve rod, a sealing connecting assembly is arranged between the valve plate and the valve body, and the electric device drives the valve rod to rotate. According to the full-lining PTFE electric butterfly valve, abrasion between a sealing piece and the valve plate is effectively reduced, and the sealing performance of the valve body is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field especially relates to a full lining tetrafluoro electric butterfly valve. BACKGROUND

[0002] Electric butterfly valve belongs to one variety in electric valve and electric regulating valve, and the connection mode of electric butterfly valve mainly has: flange type and opposite clamp type, and the sealing form of electric butterfly valve mainly has: rubber seal and metal seal, and electric butterfly valve controls the opening and closing of butterfly valve through power signal, the product can be used as the cut-off valve of pipeline system, control valve and check valve, and the product is provided with manual control device, and once power failure occurs, manual operation can be used temporarily, so that use is not affected.

[0003] In the use process, the valve plate and the inner wall of the valve body are tightly opened and closed, the electric butterfly valve needs to close and open the valve plate frequently, the sealing element is prone to be abraded to cause the sealing performance of the sealing element to be reduced, and then the sealing property of the valve body is affected. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a full lining tetrafluoro electric butterfly valve which can effectively reduce the abrasion between the sealing element and the valve plate and ensure the sealing property of the valve body.

[0005] In order to achieve the purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a full lining tetrafluoro electric butterfly valve, including the valve body, the valve column is provided on the valve body, the electric device is provided at the top of the valve column, the valve rod is rotatably connected in the valve column, the valve rod one end passes through the valve body rotatable connection has the valve seat, the valve seat is fixed in the bottom of the valve body, the valve rod outer wall is provided with the valve plate, the valve plate and the valve body between being provided with sealing connection subassembly, the electric device drive valve rod rotation.

[0007] The utility model optimally technical scheme lies in, sealing connection subassembly includes the metal frame that sets up in the valve body inside, the metal frame inner wall is provided with the gasket along the circumferential direction, the valve plate outer wall is provided with the elastic sealing ring that adapts to the sealing gasket along the circumferential direction.

[0008] The utility model optimally technical scheme lies in, the metal frame inner wall is provided with several groups of connecting protrusions along the circumferential direction at equal intervals, the connecting groove that cooperates with the connecting protrusion is provided on the gasket correspondingly, the connecting groove and the mounting protrusion interference fit.

[0009] The utility model optimally technical scheme lies in, the gasket is provided with the mounting groove on the side away from the connecting groove, the mounting groove is evenly provided with several groups along the gasket inner wall, the elastic sealing ring is provided with the mounting protrusion that adapts to the mounting groove correspondingly on the side close to the gasket.

[0010] The utility model discloses preferably technical scheme is at, valve plate outer wall is provided with recess along the circumferential direction, and the elastic sealing ring is close to the guiding protrusion of recess cooperation of valve plate one side inner wall arrangement, and recess and guiding protrusion interference fit.

[0011] The utility model discloses preferably technical scheme is at, and the control hand wheel of drive valve stem rotation is arranged on one side of electric device.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses through setting up elastic sealing ring and valve plate interference fit installation, and the sealing pad and metal frame interference fit installation drive valve stem under the action of electric device and drive valve plate rotation, when valve plate rotates and valve body cross section flow through mouth coincides, elastic sealing ring is extruded and deformed and connects sealing pad at this moment, increase the adhesion of elastic sealing ring and sealing pad, thereby improve the sealing property of connection, and the wear and tear between valve body and valve plate is reduced, and effectively guarantee the sealing strength of electric butterfly valve. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is electric butterfly valve structure schematic diagram provided in the embodiment of the utility model;

[0015] Figure 2 It is electric butterfly valve structure sectional view provided in the embodiment of the utility model;

[0016] Figure 3 It is electric butterfly valve structure schematic diagram provided in the embodiment of the utility model; Figure 2 The structure enlarged schematic diagram of A place in;

[0017] In the drawings, the component list represented by each sign is as follows:

[0018] 1, valve body;2, valve column;21, valve stem;3, electric device;4, control hand wheel;5, valve plate;51, recess;6, sealing connection assembly;61, metal frame;611, connecting protrusion;62, sealing pad;621, installation slot;622, connecting slot;63, elastic sealing ring;631, guiding protrusion;632, installation protrusion;7, valve seat. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model is further illustrated below by specific embodiments in connection with the drawings.

[0020] The utility model provides a full lining four fluorine electric butterfly valve, including the valve body 1, be provided with the valve post 2 on the valve body 1, the top of valve post 2 is provided with electric device 3, the inside rotation is connected with valve rod 21 of valve post 2, one end of valve rod 21 is rotationally connected with valve seat 7 through valve body 1, valve seat 7 is fixed to the bottom of valve body 1, the outer wall of valve rod 21 is provided with valve plate 5, and the sealing connection assembly 6 is arranged between valve plate 5 and valve body 1, and electric device 3 drives valve rod 21 to rotate.

[0021] By being provided with sealing connection assembly 6 on the inner wall of valve body 1 along the circumferential direction, electric device 3 drives valve rod 21 to drive valve plate 5 to rotate, when valve plate 5 rotates to coincide with the cross-sectional flow-through opening of valve body 1, under the action of sealing connection assembly 6, valve plate 5 and sealing connection assembly 6 and valve body 1 are kept in sealed state, by setting sealing connection assembly 6, the wear between valve plate 5 and valve body 1 during opening and closing can be effectively reduced, the sealing property between valve body 1 and valve plate 5 is guaranteed, and the sealing performance of electric butterfly valve is improved.

[0022] As a possible implementation of the scheme, preferably, the sealing connection assembly 6 includes a metal frame 61 arranged inside the valve body 1, the inner wall of the metal frame 61 is provided with a sealing gasket 62 along the circumferential direction, and the outer wall of the valve plate 5 is provided with an elastic sealing ring 63 adapted to the sealing gasket 62 along the circumferential direction.

[0023] The elastic sealing ring 63 is sleeved on the outer wall of the valve plate 5, the sealing gasket 62 is installed on the metal frame 61, the electric device 3 drives the valve rod 21 to rotate, the valve rod 21 drives the valve plate 5 to rotate, and the elastic sealing ring 63 is also driven to rotate, when the valve plate 5 rotates to coincide with the cross-sectional flow-through opening of the valve body 1, the valve plate 5 drives the elastic sealing ring 63 to be in sealing connection with the sealing gasket 62, the sealing property of the valve body 1 during operation is guaranteed, the wear between the valve body 1 and the valve plate 5 is reduced, and the sealing property of the electric butterfly valve in use is effectively improved.

[0024] As a possible implementation of the scheme, preferably, the inner wall of the metal frame 61 is provided with a plurality of groups of connecting protrusions 611 at equal intervals along the circumferential direction, the sealing gasket 62 is provided with connecting grooves 622 corresponding to the connecting protrusions 611, and the connecting grooves 622 are in interference fit with the connecting protrusions 611, by the interference fit between the connecting grooves 622 and the connecting protrusions 611, the connecting strength and stability between the sealing gasket 62 and the metal frame 61 are effectively improved, and the sealing connection strength of the sealing gasket 62 and the elastic sealing ring 63 is guaranteed.

[0025] As a possible implementation of the present scheme, preferably, the sealing gasket 62 is provided with a mounting groove 621 away from one side of the connecting groove 622, a plurality of groups of the mounting groove 621 are uniformly arranged along the inner wall of the sealing gasket 62, the elastic sealing ring 63 is correspondingly provided with a mounting protrusion 632 adapted to the mounting groove 621 near one side of the sealing gasket 62, the elastic sealing ring 63 has a certain elasticity to make the end face of the elastic sealing ring 63 tightly fit the end face of the sealing gasket 62 in the extrusion process, and the mounting protrusion 632 and the mounting groove 621 are matched to increase the fitting force of the elastic sealing ring 63 and the sealing gasket 62, and further improve the sealing strength of the electric butterfly valve.

[0026] As a possible implementation of the present scheme, preferably, the valve plate 5 is provided with a groove 51 along the circumferential direction of the outer wall of the valve plate 5, the elastic sealing ring 63 is provided with a guide protrusion 631 matched with the groove 51 on the inner wall of one side of the elastic sealing ring 63, the groove 51 and the guide protrusion 631 are in interference fit, the interference fit of the groove 51 and the guide protrusion 631 can effectively improve the connection strength and the sealing strength between the valve plate 5 and the elastic sealing ring 63, ensure the sealing property of the valve plate 5 in the operation process, and thus ensure the sealing performance of the electric butterfly valve.

[0027] As a possible implementation of the present scheme, preferably, the electric device 3 is provided with a control hand wheel 4 driving the rotation of the valve rod 21, the control hand wheel 4 and the electric device 3 are arranged to realize the double adjustment of the electric and manual, and enhance the practicability of the device.

[0028] The present application is described by the preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the present application. The present application is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A full-lined Teflon electrically operated butterfly valve characterized by: The utility model provides a full lining four fluorine electric butterfly valve, including the valve body (1), be provided with valve post (2) on the valve body (1), the top of valve post (2) is provided with electric device (3), the inside rotation is connected with valve rod (21) of valve post (2), valve rod (21) one end passes through the rotation of valve body (1) and is connected with valve seat (7), valve seat (7) is fixed on the bottom of valve body (1), the outer wall of valve rod (21) is provided with valve plate (5), and the sealed connection assembly (6) is arranged between valve plate (5) and valve body (1), and electric device (3) drives the rotation of valve rod (21); The sealed connection assembly (6) includes a metal frame (61) disposed inside the valve body (1), the inner wall of the metal frame (61) is provided with a sealing gasket (62) in the circumferential direction, and the outer wall of the valve plate (5) is provided with an elastic sealing ring (63) that is sealingly adapted to the sealing gasket (62) in the circumferential direction.

2. The full lining four fluorine electric butterfly valve according to claim 1, wherein: The inner wall of the metal frame (61) is provided with a plurality of sets of connecting protrusions (611) at equal intervals in the circumferential direction, and the sealing gasket (62) is provided with a connecting groove (622) corresponding to the connecting protrusions (611), and the connecting groove (622) is in interference fit with the connecting protrusions (611).

3. The full lining four fluorine electric butterfly valve according to claim 1, wherein: The sealing gasket (62) is provided with a mounting groove (621) on the side away from the connecting groove (622), and the mounting groove (621) is uniformly provided with a plurality of sets along the inner wall of the sealing gasket (62), and the elastic sealing ring (63) is provided with a mounting protrusion (632) corresponding to the mounting groove (621) on the side close to the sealing gasket (62).

4. The full lining four fluorine electric butterfly valve according to claim 1, wherein: The outer wall of the valve plate (5) is provided with a groove (51) in the circumferential direction, and the elastic sealing ring (63) is provided with a guide protrusion (631) on the inner wall of the side close to the valve plate (5), and the groove (51) is in interference fit with the guide protrusion (631).

5. The full lining four fluorine electric butterfly valve according to claim 1, wherein: The electric device (3) is provided with a control hand wheel (4) for driving the rotation of the valve rod (21).

Images