CN212407594U

CN212407594U - Electric negative pressure butterfly valve

Info

Publication number: CN212407594U
Application number: CN202020887790.0U
Authority: CN
Inventors: 王子润; 王致忠
Original assignee: Shanxi Quantai Technology Co ltd
Current assignee: Shanxi Quantai Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-26
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses an electric negative pressure butterfly valve, which comprises a valve pipe, wherein both ends of the valve pipe are fixedly connected with flange rings, a valve mechanism is arranged inside the valve pipe, and an adjusting mechanism is fixedly connected on the upper surface of the valve pipe; valve mechanism includes the circular slot, and the circular slot is seted up on the lower extreme inner wall of valve pipe, and the inside fixed cover of circular slot has connect first bearing, and the inside fixed cover of first bearing has connect the bull stick the utility model discloses the beneficial effect who reaches is: the cylinder through setting up promotes the rack and removes, drives engaged with gear revolve when the rack removes, drives the bull stick during gear revolve and rotates, and the bull stick drives the valve block and rotates, and then makes the valve block rotate, makes the bull stick stable rotation through first bearing and second bearing, when the fluid causes thrust to the valve block, the cylinder stops that the gas volume of inside can not change, and then leads to the unable removal of output of cylinder, and then prevents gear revolve, prevents that the valve block from rocking to cause and reveals.

Description

Electric negative pressure butterfly valve

Technical Field

The utility model relates to an electronic negative pressure butterfly valve belongs to pipeline valve technical field.

Background

The butterfly valve is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline medium, i.e. a valve whose closing member is a disk, valve clack or butterfly plate and can be rotated around the valve shaft to open and close.

The existing butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow, the size of an opening inside the valve can be adjusted when a valve plate of the butterfly valve is rotated, but because the butterfly valve controls the opening and closing of the valve through the rotation of a sending piece with the center of a circle changed, when the flow rate of fluid inside the valve is large, the fluid can cause thrust to the valve plate, and then the valve plate is shaken to cause leakage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's butterfly valve and open, close or adjust a valve of medium flow with the reciprocal 90 left and right sides of gyration of disc type opening and closing member, can adjust the inside opening size of valve when rotating the valve block of butterfly valve, but because the butterfly valve is controlled opening and shutting of valve through the piece rotation of sending out that the centre of a circle changes, when the inside fluid flow rate of valve is great, the fluid probably leads to the fact thrust to the valve block, and then lead to the valve block to rock the defect that causes the leakage, an electronic negative pressure butterfly valve is provided.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an electric negative pressure butterfly valve, which comprises a valve pipe, wherein both ends of the valve pipe are fixedly connected with flange rings, a valve mechanism is arranged inside the valve pipe, and an adjusting mechanism is fixedly connected on the upper surface of the valve pipe;

the valve mechanism comprises a circular groove, the circular groove is formed in the inner wall of the lower end of a valve pipe, a first bearing is fixedly sleeved inside the circular groove, a rotating rod is fixedly sleeved inside the first bearing, a second bearing is fixedly sleeved on the upper end surface of the rotating rod, the second bearing is fixedly sleeved on the inner wall of a circular hole, the circular hole is formed in the upper end surface of the valve pipe, two symmetrically-arranged valve plates are fixedly connected to two ends of the rotating rod, which are located inside the valve pipe, and semicircular retaining rings are fixedly connected to the inner walls of the two ends of the valve pipe;

the adjusting mechanism comprises a fixed cylinder, the fixed cylinder is fixedly connected to the outer surface of the upper end of the valve pipe, the other end of the fixed cylinder is fixedly connected with an adjusting cylinder, a jack is formed in the lower surface of the adjusting cylinder, a rotating rod is inserted into the jack, the rotating rod is located at one end of the inner portion of the adjusting cylinder and fixedly connected with a gear, a sleeve plate is fixedly sleeved in the fixed cylinder, a cylinder is connected to the sleeve plate in a clamped mode, a rack is fixedly connected to the output end of the cylinder, a T-shaped sliding block is fixedly connected to the other end of the rack and slidably connected to the T-shaped sliding groove, and the T-shaped sliding groove is formed in the inner wall of the adjusting cylinder.

As an optimal technical scheme of the utility model, two the valve block closely laminates with the both ends inner wall of valve pipe respectively.

As an optimal technical scheme of the utility model, two the valve block keeps off ring in close contact with two semicircles respectively.

As an optimal technical scheme of the utility model, two the semicircle fender ring is located the both ends on two valve block surfaces respectively.

As an optimized technical proposal of the utility model, the gear is meshed with the rack.

The utility model discloses the beneficial effect who reaches is: the cylinder through setting up promotes the rack and removes, drives engaged with gear revolve when the rack removes, drives the bull stick during gear revolve and rotates, and the bull stick drives the valve block and rotates, and then makes the valve block rotate, makes the bull stick stable rotation through first bearing and second bearing, when the fluid causes thrust to the valve block, the cylinder stops that the gas volume of inside can not change, and then leads to the unable removal of output of cylinder, and then prevents gear revolve, prevents that the valve block from rocking to cause and reveals.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic side view of the utility model;

FIG. 3 is a schematic top view of the valve tube of the present invention;

fig. 4 is a schematic top view of the adjusting mechanism of the present invention.

In the figure: 1. a valve tube; 2. a flange ring; 3. a valve mechanism; 31. a circular groove; 32. a first bearing; 33. A rotating rod; 34. a second bearing; 35. a circular hole; 36. a valve plate; 37. a semicircular baffle ring; 4. an adjustment mechanism; 41. A fixed cylinder; 42. an adjusting cylinder; 43. a jack; 44. a gear; 45. sheathing; 46. a cylinder; 47. a rack; 48. a T-shaped slider; 49. t-shaped sliding chutes.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1-4, the utility model provides an electric negative pressure butterfly valve, which comprises a valve tube 1, wherein both ends of the valve tube 1 are fixedly connected with flange rings 2, a valve mechanism 3 is arranged inside the valve tube 1, and an adjusting mechanism 4 is fixedly connected on the upper surface of the valve tube 1;

the valve mechanism 3 comprises a circular groove 31, the circular groove 31 is arranged on the inner wall of the lower end of the valve pipe 1, a first bearing 32 is fixedly sleeved inside the circular groove 31, a rotating rod 33 is fixedly sleeved inside the first bearing 32, a second bearing 34 is fixedly sleeved on the upper end surface of the rotating rod 33, the second bearing 34 is fixedly sleeved on the inner wall of a circular hole 35, the circular hole 35 is arranged on the upper end surface of the valve pipe 1, two ends of the rotating rod 33, which are positioned inside the valve pipe 1, are fixedly connected with two symmetrically arranged valve plates 36, the inner walls of the two ends of the valve pipe 1 are fixedly connected with semicircular retaining rings 37, and when the two valve plates 36 are in contact with the semicircular retaining rings 37, the valve plates 36 are placed through the semicircular retaining rings 37 to cause leakage with the inner part of the valve pipe 1;

the adjusting mechanism 4 comprises a fixed cylinder 41, the fixed cylinder 41 is fixedly connected to the outer surface of the upper end of the valve tube 1, the other end of the fixed cylinder 41 is fixedly connected with an adjusting cylinder 42, the lower surface of the adjusting cylinder 42 is provided with an insertion hole 43, a rotating rod 33 is inserted into the insertion hole 43, one end of the rotating rod 33, which is positioned inside the adjusting cylinder 42, is fixedly connected with a gear 44, the inside of the fixed cylinder 41 is fixedly sleeved with a sleeve plate 45, the inner part of the sleeve plate 45 is clamped with an air cylinder 46, the output end of the air cylinder 46 is fixedly connected with a rack 47, the other end of the rack 47 is fixedly connected with a T-shaped sliding block 48, the T-shaped sliding block 48 is slidably connected inside the T-shaped sliding groove 49, the T-shaped sliding groove 49 is arranged on the inner wall of the adjusting cylinder 42, an external power supply is switched on to start the air cylinder 46, the output, the rack 47 drives the engaged gear 44 to rotate when moving, the gear 44 drives the rotary rod 33 at the lower end to rotate when rotating, the rotary rod 33 drives the two valve plates 36 to rotate, so that the two valve plates 36 are separated from the two semicircular retaining rings 37, and the two valve plates 36 are separated from the inner walls of the two ends of the valve pipe 1 when rotating, thereby opening the inner opening of the valve pipe 1.

The two valve plates 36 are respectively and tightly attached to the inner walls of the two ends of the valve tube 1, and the valve tube 1 is closed after the two valve plates 36 are contacted with the inner wall of the valve tube 1.

The two valve plates 36 are respectively in close contact with the two semicircular retaining rings 37, and the valve plates 36 and the inner part of the valve tube 1 are placed through the semicircular retaining rings 37 to cause leakage.

The two semicircular retaining rings 37 are respectively located at two ends of the surfaces of the two valve plates 36, so that the two valve plates 36 can rotate.

The gear 44 is engaged with the rack 47, and the rack 47 drives the gear 44 to rotate.

Specifically, when the utility model is used, firstly, an external power supply is switched on to start the cylinder 46, the output end of the cylinder 46 moves and then drives the rack 47 to move, the rack 47 moves stably and moves through the restriction of the T-shaped slide block 48 and the T-shaped slide groove 49, the rack 47 moves and drives the meshed gear 44 to rotate, the gear 44 rotates and drives the rotary rod 33 at the lower end to rotate, the rotary rod 33 drives the two valve plates 36 to rotate, so that the two valve plates 36 are separated from the two semicircular baffle rings 37, the two valve plates 36 rotate and are separated from the inner walls at the two ends of the valve pipe 1, so that the internal opening of the valve pipe 1 is opened, when the opening is opened to a preset size, the external power supply is disconnected from the cylinder 46, so that the internal operation of the cylinder 46 is stopped, so that the output end of the cylinder 46 stops moving, the rack 47 is driven to stop moving after the output end problem, the gear 44 drives the rotating rod 33 to stop moving, the rotating rod 33 drives the two valve plates 36 to stop after stopping moving, when fluid inside the valve pipe 1 flows, the two valve plates 36 are pushed, the thrust is transmitted to the rotating rod 33 through the valve plates 36, the thrust on the rotating rod 33 is transmitted to the gear 44, the thrust received by the gear 44 is transmitted to the rack 47, the thrust received by the rack 47 is transmitted to the cylinder 46, because the internal structure of the cylinder 46 is stable, the output end of the cylinder 46 cannot move, the valve plates 36 are further driven to be incapable of rotating, the fluid inside the valve pipe 1 is prevented from pushing the valve plates to rotate, sound can be given only after control of the valve is totally closed, and the valve plates 36 are prevented from rotating to cause valve leakage after the valve is closed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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

1. An electric negative pressure butterfly valve comprises a valve pipe (1), wherein flange rings (2) are fixedly connected to two ends of the valve pipe (1), a valve mechanism (3) is arranged inside the valve pipe (1), and an adjusting mechanism (4) is fixedly connected to the upper surface of the valve pipe (1);

the valve mechanism (3) comprises a circular groove (31), the circular groove (31) is formed in the inner wall of the lower end of the valve pipe (1), a first bearing (32) is fixedly sleeved inside the circular groove (31), a rotating rod (33) is fixedly sleeved inside the first bearing (32), a second bearing (34) is fixedly sleeved on the upper end surface of the rotating rod (33), the second bearing (34) is fixedly sleeved on the inner wall of a circular hole (35), the circular hole (35) is formed in the upper end surface of the valve pipe (1), two ends, located inside the valve pipe (1), of the rotating rod (33) are fixedly connected with two symmetrically-arranged valve plates (36), and inner walls of the two ends of the valve pipe (1) are fixedly connected with semi-circular retaining rings (37);

the adjusting mechanism (4) comprises a fixed cylinder (41), the fixed cylinder (41) is fixedly connected to the outer surface of the upper end of the valve pipe (1), the other end of the fixed cylinder (41) is fixedly connected with an adjusting cylinder (42), the lower surface of the adjusting cylinder (42) is provided with an insertion hole (43), a rotating rod (33) is inserted in the insertion hole (43), one end of the rotating rod (33) positioned in the adjusting cylinder (42) is fixedly connected with a gear (44), a sleeve plate (45) is fixedly sleeved in the fixed cylinder (41), an air cylinder (46) is clamped in the sleeve plate (45), the output end of the air cylinder (46) is fixedly connected with a rack (47), the other end of the rack (47) is fixedly connected with a T-shaped sliding block (48), t shape slider (48) sliding connection is inside T shape spout (49), T shape spout (49) are seted up on the inner wall of adjusting a section of thick bamboo (42).

2. The electric negative pressure butterfly valve according to claim 1, wherein the two valve plates (36) are respectively tightly attached to the inner walls of the two ends of the valve tube (1).

3. An electric negative pressure butterfly valve according to claim 1, characterized in that the two valve plates (36) are in close contact with two semicircular retaining rings (37), respectively.

4. An electric negative pressure butterfly valve according to claim 1, characterized in that two said semi-circular retaining rings (37) are respectively located at the two ends of the surface of the two valve plates (36).

5. An electric negative pressure butterfly valve according to claim 1, characterized in that said gear (44) is engaged with a rack (47).