CN211449671U

CN211449671U - Light manual ventilation butterfly valve

Info

Publication number: CN211449671U
Application number: CN201921793523.0U
Authority: CN
Inventors: 黄立杰
Original assignee: Tianjin Liangtai Valve Co ltd
Current assignee: Tianjin Liangtai Valve Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-09-08
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a light-duty manual ventilation butterfly valve, which comprises a valve body, be provided with the valve rod on the inside center axis of valve body, clearance pad between valve body inner wall and the valve rod has O type circle, the symmetrical bush that is connected with in valve rod both sides, fixedly connected with butterfly lamella on the valve rod concentric axis, the valve body top is equipped with the box, the inside worm that is provided with of box, the meshing of worm rear side has the worm wheel, worm wheel one side fixedly connected with connecting rod, box inner wall fixedly connected with ratchet wheel circle, ratchet wheel circle concentric axis inboard is provided with the disc, the utility model discloses in, through setting up devices such as ratchet wheel circle and calibrated scale, can know the size of vent through the reading on the calibrated scale is indirect, can adjust the size of vent more accurately and adapt to different occasions for traditional device.

Description

Light manual ventilation butterfly valve

Technical Field

The utility model relates to a ventilation butterfly valve field especially relates to a light-duty manual ventilation butterfly valve.

Background

The ventilation butterfly valve is a non-closed butterfly valve, is applied to dust-containing cold air or hot air gas pipelines of ventilation and environmental protection projects in the industries of chemical engineering, building materials, power stations, glass and the like, is used as a pipeline control device for regulating the flow or cutting off a gas medium, is generally horizontally arranged in the pipelines, is a regulating valve with a simple structure, and can be used for on-off control of a low-pressure pipeline medium.

In different occasions and time quantum, the size of vent also is different, but traditional ventilation butterfly valve in the existing market can not know the size of vent certainly, can only adjust this size through experience, unusual inconvenience, and have certain error, and the device is also a significant problem in addition that is generally heavier to be difficult to carry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a light manual ventilation butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a light-duty manual butterfly valve that ventilates, includes the valve body, be provided with the valve rod on the inside center pin line of valve body, clearance pad between valve body inner wall and the valve rod has O type circle, the valve rod both sides symmetry is connected with the bush, fixedly connected with butterfly lamella on the valve rod concentric axis, the valve body top is equipped with the box, the inside worm that is provided with of box, the meshing of worm rear side has the worm wheel, worm wheel one side fixedly connected with connecting rod, box inner wall fixedly connected with ratchet circle, ratchet circle concentric axis inboard is provided with the disc, disc one side surface and the corresponding position fixedly connected with pawl of ratchet circle, be provided with the screw between pawl and the disc, box one side fixedly connected with calibrated scale, the terminal fixedly connected with rolling disc in connecting rod one.

As a further description of the above technical solution:

the valve body is internally provided with a through round hole corresponding to the butterfly valve, and is made of aluminum alloy.

As a further description of the above technical solution:

the number of the O-shaped rings is two, every two O-shaped rings on each side are one, the two O-shaped rings are parallel to each other, and the O-shaped rings are cut and formed by rubber sectional materials.

As a further description of the above technical solution:

the bushing is in clearance fit with the valve rod.

As a further description of the above technical solution:

the worm is fixedly connected with the valve rod through welding.

As a further description of the above technical solution:

the disc is fixedly connected with the connecting rod.

The utility model discloses following beneficial effect has:

1. the utility model provides a pair of light-duty manual ventilation butterfly valve compares with traditional device, through setting up devices such as ratchet ring and calibrated scale, can know the size of vent through the reading on the calibrated scale indirectly, can adapt to different occasions for the size of traditional device more accurate regulation vent.

2. Compared with the traditional device, the device has larger innovation and improvement in structure and design, the valve body is made of special aluminum alloy materials, the valve body is light in weight compared with the traditional valve body, the hardness and the wear resistance are higher, and the valve body is easier to carry.

Drawings

Fig. 1 is a front view of a light manual ventilation butterfly valve provided by the present invention;

fig. 2 is a side view of a light manual ventilation butterfly valve provided by the present invention;

FIG. 3 is a schematic view of the internal structure of the case;

FIG. 4 is a schematic view of the ratchet ring and the disc.

Illustration of the drawings:

1. a valve body; 2. a butterfly flap; 3. a bushing; 4. a valve stem; 5. an O-shaped ring; 6. a box body; 7. rotating the disc; 8. a ratchet ring; 9. a connecting rod; 10. a worm gear; 11. a worm; 12. a disc; 13. a pawl; 14. a screw; 15. a dial.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a light-duty manual butterfly valve that ventilates, including valve body 1, be provided with valve rod 4 on the 1 inside center axis of valve body, clearance pad between 1 inner wall of valve body and the valve rod 4 has O type circle 5, the symmetrical bush 3 that is connected with in valve rod 4 both sides, fixedly connected with butterfly lamella 2 on the 4 concentric axes of valve rod, 1 top of valve body is equipped with box 6, the inside worm 11 that is provided with of

box

6, 11 rear side meshing of worm have worm wheel 10, worm wheel 10 one side fixedly connected with connecting

rod

9, 6 inner wall fixedly connected with ratchet rings 8 of box, 8 concentric axes inboards of ratchet rings are provided with disc 12, disc 12 one side surface and the corresponding position fixedly connected with pawl 13 of ratchet rings 8, be provided with screw 14 between pawl 13 and

disc

12, 6 one side fixedly connected with calibrated scale 15 of box.

The through round hole has been seted up with butterfly valve 2 corresponding position in the valve body 1 inside, and valve body 1 is the aluminum alloy material, the aluminum alloy has the hardness height, advantages such as the wearability is good and the quality is light, the quantity of O type circle 5 is two sets of, per two O type circles 5 of every side are a set of, it is parallel to each other between two sets of O type circles 5, and O type circle 5 is tailor by rubber profile and takes shape, rubber seal has sealing performance better, almost can accomplish not to leak when being used as static seal, bush 3 is clearance fit with valve rod 4, be convenient for reduce the wearing and tearing of valve rod 4 and valve body 1 inside, through welding looks fixed connection between worm 11 and the valve rod 4, be convenient for drive the rotation of valve rod 4, fixed connection between disc 12 and the connecting rod 9, be convenient for drive the rotation of.

The working principle is as follows: the utility model provides a light-duty manual ventilation butterfly valve has great improvement innovation with traditional device, rotation rolling disc 7, also follow the rotation with 7 one end fixed connection's of rolling disc connecting rod 9, connecting rod 9 keeps away from 7 one end of rolling disc's fixed connection's worm wheel 10 and rotates along with it, worm 11 with worm wheel 10 engaged with rotates along with it, drive butterfly lamella 2 rotates, because connecting rod 9 concentric axis outside fixedly connected with disc 12 contacts with ratchet wheel rim 8, rolling disc 7 can only rotate towards a direction, can guarantee that butterfly lamella 2 does not take place easily to rotate, through connecting in the calibrated scale 15 in the 6 outsides of box can indirectly obtain the size of vent, be convenient for appropriate regulation.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a light-duty manual ventilation butterfly valve, includes valve body (1), its characterized in that: the valve is characterized in that a valve rod (4) is arranged on the central axis in the valve body (1), an O-shaped ring (5) is arranged on a gap between the inner wall of the valve body (1) and the valve rod (4), bushings (3) are symmetrically connected to two sides of the valve rod (4), a butterfly valve (2) is fixedly connected to the concentric axis of the valve rod (4), a box body (6) is arranged at the top of the valve body (1), a worm (11) is arranged in the box body (6), a worm wheel (10) is meshed to the rear side of the worm (11), a connecting rod (9) is fixedly connected to one side of the worm wheel (10), a ratchet ring (8) is fixedly connected to the inner wall of the box body (6), a disc (12) is arranged on the inner side of the concentric axis of the ratchet ring (8), a pawl (13) is fixedly connected to the outer surface of one side of the disc (12) and the, the box body (6) one side fixedly connected with calibrated scale (15), connecting rod (9) one side end fixedly connected with rolling disc (7).

2. A lightweight manual ventilation butterfly valve as claimed in claim 1, wherein: the valve body (1) is internally provided with a through round hole corresponding to the butterfly valve (2), and the valve body (1) is made of aluminum alloy.

3. A lightweight manual ventilation butterfly valve as claimed in claim 1, wherein: the number of the O-shaped rings (5) is two, every two O-shaped rings (5) on each side are one, the two O-shaped rings (5) are parallel to each other, and the O-shaped rings (5) are cut and formed by rubber sectional materials.

4. A lightweight manual ventilation butterfly valve as claimed in claim 1, wherein: the bushing (3) is in clearance fit with the valve rod (4).

5. A lightweight manual ventilation butterfly valve as claimed in claim 1, wherein: the worm (11) and the valve rod (4) are fixedly connected through welding.

6. A lightweight manual ventilation butterfly valve as claimed in claim 1, wherein: the disc (12) is fixedly connected with the connecting rod (9).