CN210510318U

CN210510318U - Butterfly valve with good wear resistance

Info

Publication number: CN210510318U
Application number: CN201921232118.1U
Authority: CN
Inventors: 王世伟; 蔡伯荣; 朱建霞
Original assignee: NANTONG CHANGJIANG VALVE MANUFACTURING CO LTD
Current assignee: NANTONG CHANGJIANG VALVE MANUFACTURING CO LTD
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-05-12
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a butterfly valve that wearability is good, which comprises a valve body, the internal surface intermediate position fixed mounting of valve body has the division board, the internal surface top fixed mounting of valve body has first disk seat, the internal surface bottom fixed mounting of valve body has the second disk seat, movable mounting has first butterfly plate between division board and the first disk seat, movable mounting has the second butterfly plate between division board and the second disk seat, the internal surface fixed mounting of first butterfly plate has first valve rod, the internal surface fixed mounting of second butterfly plate has the second valve rod, the first adjustment handle of upper end fixedly connected with of first valve rod, the lower extreme fixedly connected with second adjustment handle of second valve rod, the first seal receptacle of top outer wall intermediate position fixedly connected with of valve body. The utility model discloses a butterfly valve flow control precision is higher, can carry out accurate control according to people's actual demand to the flow of fluid, the people's of being convenient for more regulation work.

Description

Butterfly valve with good wear resistance

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a butterfly valve that wearability is good.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. At present, the wear-resistant butterfly valve is developed by introducing foreign advanced technologies, and has the characteristics of wear resistance, long sealing life, simple installation and operation and the like, so that the wear-resistant butterfly valve is suitable for application occasions of various powder and particle materials. The valve seat with high wear resistance adopts a loose joint structure, and a user can conveniently replace the valve seat according to the wear condition of the valve so as to reduce the production and use cost of the user.

However, when the existing butterfly valve with good wear resistance is used, certain disadvantages still exist, for example, the structure is too single, the flow control precision is not high, people cannot accurately control the flow of fluid according to actual requirements, and certain adverse effects are caused in the actual use process, so that the butterfly valve with good wear resistance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a butterfly valve with good wear resistance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a butterfly valve with good wear resistance comprises a valve body, wherein a partition plate is fixedly arranged at the middle position of the inner surface of the valve body, a first valve seat is fixedly arranged at the top of the inner surface of the valve body, a second valve seat is fixedly arranged at the bottom of the inner surface of the valve body, a first butterfly plate is movably arranged between the partition plate and the first valve seat, a second butterfly plate is movably arranged between the partition plate and the second valve seat, a first valve rod is fixedly arranged on the inner surface of the first butterfly plate, a second valve rod is fixedly arranged on the inner surface of the second butterfly plate, a first adjusting handle is fixedly connected to the upper end of the first valve rod, a second adjusting handle is fixedly connected to the lower end of the second valve rod, a first sealing seat is fixedly connected to the middle position of the outer wall at the top of the valve body, a second sealing seat is fixedly connected to the middle position of the outer wall at the bottom of the valve, the outer surface of the second butterfly plate is fixedly sleeved with a second sealing ring, a connecting shaft seat is fixedly installed at the middle position of the inner surface of the partition plate, the lower end of the first valve rod is rotatably connected with the upper surface of the connecting shaft seat, the upper end of the second valve rod is rotatably connected with the lower surface of the connecting shaft seat, and a plurality of installation pieces are uniformly and fixedly installed on the outer surface of the valve body.

Preferably, the inner surface of the mounting piece is provided with a mounting hole, and the number of the mounting pieces is at least six.

Preferably, a first gland is fixedly mounted on the upper surface of the first sealing seat, and a second gland is fixedly mounted on the lower surface of the second sealing seat.

Preferably, a first packing ring is arranged inside the first sealing seat, a second packing ring is arranged inside the second sealing seat, and the first packing ring and the second packing ring are both graphite packing rings.

Preferably, the first butterfly plate and the second butterfly plate are both semicircular in shape.

Preferably, the outer surface of the first valve rod is rotatably connected with a first shaft sleeve, the first shaft sleeve is fixedly installed on the inner wall of the top of the valve body, the outer surface of the second valve rod is rotatably connected with a second shaft sleeve, and the second shaft sleeve is fixedly installed on the inner wall of the bottom of the valve body.

Compared with the prior art, the beneficial effects of the utility model are that:

in the utility model, two sets of flow regulating mechanisms are added to the butterfly valve by arranging the partition plate, the first valve seat, the second valve seat, the first butterfly plate, the second butterfly plate, the first valve rod, the second valve rod, the first regulating handle, the second regulating handle and the connecting shaft seat, compared with the traditional butterfly valve, the flow regulating precision of the butterfly valve is higher, so that the flow of fluid can be accurately controlled according to the actual demand of people, and the regulating work of people is more convenient;

to sum up, the utility model discloses a butterfly valve flow control precision is higher, can carry out accurate control according to people's actual demand to the flow of fluid, the people's of being convenient for more regulation work.

Drawings

Fig. 1 is a schematic structural view of a butterfly valve with good wear resistance provided by the present invention;

fig. 2 is a front view of a butterfly valve with good wear resistance provided by the utility model.

In the figure: the sealing device comprises a valve body 1, a partition plate 2, a first valve seat 3, a second valve seat 4, a first butterfly plate 5, a second butterfly plate 6, a first valve rod 7, a second valve rod 8, a first adjusting handle 9, a second adjusting handle 10, a first sealing seat 11, a second sealing seat 12, a first sealing ring 13, a second sealing ring 14, a connecting shaft seat 15, a mounting sheet 16, a mounting hole 17, a first gland 18, a second gland 19, a first shaft sleeve 20, a second shaft sleeve 21, a first packing ring 22 and a second packing ring 23.

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.

Referring to fig. 1-2, a butterfly valve with good wear resistance comprises a valve body 1, a partition plate 2 is fixedly installed at the middle position of the inner surface of the valve body 1, a first valve seat 3 is fixedly installed at the top of the inner surface of the valve body 1, a second valve seat 4 is fixedly installed at the bottom of the inner surface of the valve body 1, a first butterfly plate 5 is movably installed between the partition plate 2 and the first valve seat 3, a second butterfly plate 6 is movably installed between the partition plate 2 and the second valve seat 4, a first valve rod 7 is fixedly installed at the inner surface of the first butterfly plate 5, a second valve rod 8 is fixedly installed at the inner surface of the second butterfly plate 6, a first adjusting handle 9 is fixedly connected at the upper end of the first valve rod 7, a second adjusting handle 10 is fixedly connected at the lower end of the second valve rod 8, a first sealing seat 11 is fixedly connected at the middle position of the outer wall of the top of the, the outer fixed surface of first butterfly plate 5 has cup jointed first sealing washer 13, and the outer fixed surface of second butterfly plate 6 has cup jointed second sealing washer 14, and the internal surface intermediate position fixed mounting of division board 2 has connection axle bed 15, and the lower extreme of first valve rod 7 rotates with the upper surface of being connected axle bed 15 to be connected, and the upper end of second valve rod 8 rotates with the lower surface of being connected axle bed 15 to be connected, and the even fixed mounting of surface of valve body 1 has a plurality of installation pieces 16.

Mounting hole 17 has been seted up to the internal surface of mounting plate 16, and the quantity of mounting plate 16 is six at least, the last fixed surface of first seal receptacle 11 installs first gland 18, the lower fixed surface of second seal receptacle 12 installs second gland 19, the inside of first seal receptacle 11 is equipped with first drilled packing ring 22, the inside of second seal receptacle 12 is equipped with second drilled packing ring 23, and first drilled packing ring 22 and second drilled packing ring 23 are graphite drilled packing ring, the shape of first butterfly plate 5 and second butterfly plate 6 is all semicircular, the surface of first valve rod 7 rotates and is connected with first axle sleeve 20, and first axle sleeve 20 fixed mounting is at the top inner wall of valve body 1, the surface of second valve rod 8 rotates and is connected with second axle sleeve 21, and second axle sleeve 21 fixed mounting is at the bottom inner wall of valve body 1.

The working principle is as follows: when in use, the division plate 2 can divide the valve body 1 into two fluid through openings which are symmetrically arranged, the first valve rod 7 or the second valve rod 8 can be driven to synchronously rotate by rotating the first adjusting handle 9 or the second adjusting handle 10, further realizing the adjustment of the opening degree of the first butterfly plate 5 or the second butterfly plate 6, thereby enabling people to more accurately control the flow of the fluid, the first packing ring 22 and the second packing ring 23 in the first sealing seat 11 and the second sealing seat 12 can play a good sealing role for the valve body 1 to avoid the leakage of the fluid, the first sealing ring 13 and the second sealing ring 14 can play a good sealing role for the first butterfly plate 5 and the second butterfly plate 6, thereby enabling the butterfly valve to have good sealing effect, the butterfly valve of the utility model has higher flow adjusting precision, the flow of the fluid can be accurately controlled according to the actual requirements of people, and the adjustment work of people is more convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The butterfly valve with good wear resistance comprises a valve body (1) and is characterized in that a partition plate (2) is fixedly mounted at the middle position of the inner surface of the valve body (1), a first valve seat (3) is fixedly mounted at the top of the inner surface of the valve body (1), a second valve seat (4) is fixedly mounted at the bottom of the inner surface of the valve body (1), a first butterfly plate (5) is movably mounted between the partition plate (2) and the first valve seat (3), a second butterfly plate (6) is movably mounted between the partition plate (2) and the second valve seat (4), a first valve rod (7) is fixedly mounted at the inner surface of the first butterfly plate (5), a second valve rod (8) is fixedly mounted at the inner surface of the second butterfly plate (6), a first adjusting handle (9) is fixedly connected at the upper end of the first valve rod (7), a second adjusting handle (10) is fixedly connected at the lower end of the second valve rod (8), the top outer wall intermediate position fixedly connected with first seal receptacle (11) of valve body (1), the bottom outer wall intermediate position fixedly connected with second seal receptacle (12) of valve body (1), the external fixed surface of first butterfly plate (5) has cup jointed first sealing washer (13), the external fixed surface of second butterfly plate (6) has cup jointed second sealing washer (14), the internal surface intermediate position fixed mounting of division board (2) has connection axle bed (15), the lower extreme of first valve rod (7) with the upper surface of connecting axle bed (15) rotates and connects, the upper end of second valve rod (8) with the lower surface of connecting axle bed (15) rotates and connects, the even fixed mounting in surface of valve body (1) has a plurality of installation pieces (16).

2. The butterfly valve with good wear resistance according to claim 1, wherein the mounting plate (16) has mounting holes (17) formed in an inner surface thereof, and the number of the mounting plates (16) is at least six.

3. The butterfly valve with good wear resistance according to claim 1, wherein a first gland (18) is fixedly mounted on the upper surface of the first seal seat (11), and a second gland (19) is fixedly mounted on the lower surface of the second seal seat (12).

4. A butterfly valve with good wear resistance according to claim 1, characterized in that a first packing ring (22) is arranged inside the first seal seat (11), a second packing ring (23) is arranged inside the second seal seat (12), and both the first packing ring (22) and the second packing ring (23) are graphite packing rings.

5. A butterfly valve with high wear resistance according to claim 1, characterised in that said first (5) and second (6) plates are each shaped as a semi-circle.

6. The butterfly valve with good wear resistance according to claim 1, wherein the outer surface of the first valve rod (7) is rotatably connected with a first shaft sleeve (20), the first shaft sleeve (20) is fixedly installed on the inner wall of the top of the valve body (1), the outer surface of the second valve rod (8) is rotatably connected with a second shaft sleeve (21), and the second shaft sleeve (21) is fixedly installed on the inner wall of the bottom of the valve body (1).