CN214146637U

CN214146637U - Electric butterfly valve

Info

Publication number: CN214146637U
Application number: CN202023250106.7U
Authority: CN
Inventors: 周克祥
Original assignee: Shanghao Valve Group Co Ltd
Current assignee: Shanghao Valve Group Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-07
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to an electric butterfly valve, including valve body, valve rod, dish board and motor-driven mechanism, be equipped with medium channel in the valve body, removable cover is equipped with the seal cover in the medium channel, be equipped with the through-hole in the seal cover, valve rod one end is passed the valve body and is connected with the dish board in stretching into the through-hole, and the other end is arranged in outside the valve body and is connected with the motor-driven mechanism drive, dish board and the cooperation of through-hole inner wall rotary seal, the outer lane of dish board is equipped with the sealing washer, and the round sealing ring is installed to the through-hole inner wall, removable the installing the filter screen in the both ends of seal cover. The utility model discloses an adorn the seal cover in the valve body, change the friction between original dish board and the valve body into the friction between dish board and the seal cover, can change seal cover and sealing member (sealing ring and sealing washer) alone after wearing and tearing, convenient to use helps improving the life and the sealing performance of butterfly valve.

Description

Electric butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field domain, concretely relates to electric butterfly valve.

Background

With the development of electric valves, a plurality of well-known valve enterprises at home and abroad produce the electric valves, an electric butterfly valve is an important execution unit in the field of industrial automatic control, belongs to one variety of the electric valves and electric regulating valves, is widely applied to the fields of textile, power stations, petrochemical industry, heat supply and refrigeration, pharmacy, shipbuilding, metallurgy, light industry, environmental protection and the like, and can be used as a cut-off valve, a control valve and a check valve of a pipeline system. The complete manual control device and the electric or pneumatic transmission device can meet specific conditions of different working conditions, meet the strictest quality requirements, and can be applied very durably, and particularly have very high popularity in the metallurgical steel and ship industries.

The electric butterfly valve is convenient and rapid to open and close, labor-saving, small in fluid resistance, capable of being operated frequently, simple in structure, small in size, light in weight, capable of conveying slurry, capable of storing liquid at the opening of a pipeline at the minimum, capable of achieving good sealing under low pressure and good in adjusting performance.

The butterfly valve is opened and close frequently, and the dish board frequently rubs with the valve body inner wall, uses a period back, and the sealing washer of dish board outer lane and the friction loss of valve body inner wall increase in the clearance between sealing washer and the valve body inner wall, and sealing performance descends, the easy problem that appears leaking, and life is short. The sealing ring can be replaced after being worn, but the inner wall of the valve body cannot be replaced after being worn.

SUMMERY OF THE UTILITY MODEL

To the not enough in the background art, the utility model provides an electric butterfly valve.

The utility model adopts the technical proposal that: the utility model provides an electric butterfly valve, includes valve body, valve rod, dish board and motor-driven mechanism, be equipped with medium channel in the valve body, removable cover is equipped with the seal cover in the medium channel, be equipped with the through-hole in the seal cover, valve rod one end is passed the valve body and is connected with the dish board in stretching into the through-hole, and the other end is arranged in outside the valve body and is connected with the motor-driven mechanism drive, dish board and the cooperation of through-hole inner wall rotary seal, the outer lane of dish board is equipped with the sealing washer, and the round sealing ring is installed to the through-hole inner wall, removable the installing filter screen in the both ends of seal cover.

Furthermore, two ends of the sealing sleeve are fixed on the valve body through bolts.

Furthermore, O-shaped sealing rings are arranged between the sealing sleeves positioned on two sides of the bolt and the inner wall of the medium channel.

Furthermore, the filter screen is fixed at two ends of the sealing sleeve through screws.

Furthermore, the filter screen is a magnetic filter screen.

Furthermore, flange connection discs are integrally formed at two ends of the valve body.

The utility model has the advantages that: the utility model discloses an adorn the seal cover in the valve body, change the friction between original dish board and the valve body into the friction between dish board and the seal cover, can change seal cover and sealing member (sealing ring and sealing washer) alone after wearing and tearing, convenient to use helps improving the life and the sealing performance of butterfly valve.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages.

The present invention will be described in further detail with reference to the drawings.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

In FIGS. 1-2: 1. a valve body; 2. a valve stem; 3. a plate; 4. a motor drive mechanism; 5. a media channel; 6. sealing sleeves; 7. a through hole; 8. a seal ring; 9. a seal ring; 10. a filter screen; 11. a bolt; 12. an O-shaped sealing ring; 13. a screw; 14. and (4) connecting a flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

The utility model provides an electric butterfly valve.

In this embodiment, refer to fig. 1-2, this electric butterfly valve, including valve body 1, valve rod 2, dish board 3 and motor drive mechanism 4, be equipped with medium channel 5 in the valve body, removable cover is equipped with seal cover 6 in the medium channel, be equipped with through-hole 7 in the seal cover, valve rod one end is passed the valve body and is connected with the dish board in stretching into the through-hole, and the other end is arranged the valve body in and is connected with the motor drive mechanism drive, dish board and the rotatory sealed cooperation of through-hole inner wall, the outer lane of dish board is equipped with sealing washer 8, and round sealing ring 9 is installed to the through-hole inner wall, the removable filter screen 10 of installing in both ends of seal cover.

Among the above-mentioned technical scheme, through at valve body endotheca sealing cover, change the friction between original dish board and the valve body into the friction between dish board and the sealing cover, can change sealing cover and sealing member (sealing ring and sealing washer) alone after wearing and tearing, convenient to use helps improving butterfly valve's life and sealing performance.

In addition, the filter screens are arranged at the two ends of the sealing sleeve and used for filtering impurities, so that the impurities are prevented from entering the sealing sleeve to accelerate the abrasion between the disc plate and the sealing sleeve, and the service life of the butterfly valve is prolonged.

And seal cover and filter screen all adopt removable design, the dismouting of the seal cover of being convenient for and filter screen is changed.

Specifically, two ends of the sealing sleeve are fixed on the valve body through bolts 11; o-shaped sealing rings 12 are arranged between the sealing sleeves positioned at the two sides of the bolt and the inner wall of the medium channel;

the O-shaped sealing rings are arranged on the sealing sleeves on the two sides of the bolt, so that the medium is prevented from leaking from a gap between the sealing sleeves and the valve body, and the sealing performance is improved.

Specifically, the filter screen is fixed at two ends of the sealing sleeve through screws 13; the filter screen is a magnetic filter screen; and flange connection discs 14 are integrally formed at two ends of the valve body.

And flange connection discs are arranged at two ends of the valve body, so that the valve body can be conveniently connected with an external pipe fitting.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. The utility model provides an electric butterfly valve, includes valve body, valve rod, dish board and motor-driven mechanism, be equipped with medium channel in the valve body, its characterized in that: removable cover is equipped with the seal cover in the medium passage, be equipped with the through-hole in the seal cover, valve rod one end is passed the valve body and is stretched into in the through-hole and be connected with the dish board, and the other end is arranged in the valve body and is connected with the motor drive mechanism drive outward, dish board and the cooperation of through-hole inner wall rotary seal, the outer lane of dish board is equipped with the sealing washer, and the round sealing ring is installed to the through-hole inner wall, the removable filter screen of installing in.

2. The electric butterfly valve of claim 1, wherein: and two ends of the sealing sleeve are fixed on the valve body through bolts.

3. The electric butterfly valve of claim 2, wherein: o-shaped sealing rings are arranged between the sealing sleeves positioned on the two sides of the bolt and the inner wall of the medium channel.

4. An electric butterfly valve according to any one of claims 1 to 3, characterised in that: the filter screen is fixed at two ends of the sealing sleeve through screws.

5. The electric butterfly valve of claim 4, wherein: the filter screen is a magnetic filter screen.

6. The electric butterfly valve of claim 1, wherein: and flange connection discs are integrally formed at two ends of the valve body.