Butterfly valve capable of preventing deviation of sealing rubber ring

Abstract

The butterfly valve capable of preventing the sealing rubber ring from deviating comprises a valve body, two sealing strips are arranged on the valve body, a flow plate is arranged in an inner cavity of the valve body, a first rotating rod is fixedly connected to the flow plate, the right end of the first rotating rod penetrates through the flow plate and extends to the outer side of the flow plate, and the right end of the first rotating rod is fixedly connected with a second rotating rod. The left side of the first rotating rod sequentially penetrates through the flow plate and the outer side of the valve body and is fixedly connected with a first gear, and an adjusting mechanism is arranged below the first gear; the valve body, the sealing strip, the flow plate, the first sliding groove, the sliding block, a first transverse rod, a rack, a second rotating rod, a second gear, a first gear, a rotating disc, a fixing plate, a plug pin, a hole, a first rotating rod and a hole are matched for use, and the problem that after existing common adjustment, rotation of the flow plate is caused, the flow plate is not firm, and the later-period fluidity is greatly reduced is solved through mutual cooperation of the valve body, the sealing strip, the flow plate, the first sliding groove, the sliding block, the first transverse rod, the rack, the second rotating rod and the hole. And great inconvenience is brought to a user.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve capable of preventing a sealing rubber ring from deflecting. Background Art

[0002] The butterfly valve, also known as the flap valve, is a regulating valve with a simple structure. It can be used for the on-off control of low-pressure pipeline media. The butterfly valve refers to a valve with a closing member (valve disc or butterfly plate) as a disc, which rotates around the valve axis to achieve opening and closing. The water volume is adjusted by the flow plate. The existing general adjustment will cause the flow plate to rotate, which is unreliable, greatly reducing the subsequent fluidity problems and causing great inconvenience to users. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a butterfly valve which can prevent the deviation of the sealing rubber ring by overcoming the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve for preventing the deviation of a sealing rubber ring, comprising a valve body, two sealing strips are arranged on the valve body, a flow plate is arranged in the inner cavity of the valve body, a first rotating rod is fixedly connected to the flow plate, the right end of the first rotating rod passes through the flow plate and extends to the outside of the flow plate, and is movably connected to the side wall of the inner cavity of the valve body through a bearing, the left side of the first rotating rod passes through the flow plate and the outside of the valve body in turn, and is fixedly connected to a first gear, and an adjustment mechanism is arranged under the first gear.

[0005] Preferably, one of the sealing strips is fixedly connected to the top end of the valve body, and the other sealing strip is fixedly connected to the bottom end of the valve body.

[0006] Preferably, a first slide groove is formed on the side wall of the valve body, a slider is slidably connected to the inner cavity of the first slide groove, a first cross bar is fixedly connected to the side wall of the slider, and the first cross bar passes through the first slide groove and extends to the outside of the first slide groove.

[0007] Preferably, the adjustment mechanism includes a rack, a side wall of the rack is fixedly connected to the right end of the first cross bar, a second rotating rod is provided above the rack, the second rotating rod is movably connected to the side wall of the valve body through a bearing, and a second gear is fixedly connected to the second rotating rod.

[0008] Preferably, the rack is meshed with the first gear and the second gear.

[0009] Preferably, a rotating disk is fixedly connected to the right end of the second rotating rod, a fixing plate is fixedly connected to the side wall of the valve body, and a blind hole is formed on the fixing plate.

[0010] Preferably, a plurality of holes are provided on the turntable, and a latch is provided on the left side of the turntable. The latch passes through the hole, extends to the outside of the turntable, and is plugged into the inner cavity of the blind hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the valve body, sealing strip, flow plate, first slide groove, slider, first cross bar, rack, second rotating rod, second gear, first gear, turntable, fixing plate, latch, hole, first rotating rod and hole of the utility model cooperate with each other to solve the problem that the flow plate will rotate unreliably after the existing general adjustment, which greatly reduces the later fluidity problem and brings great inconvenience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the turntable structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the meshing of the first gear, the second gear and the rack of the utility model;

[0015] Figure 4 This is a schematic diagram of the blind hole structure on the fixed plate of the utility model.

[0016] Numbers in the figure: 1, valve body; 2, sealing strip; 3, flow plate; 4, first slide groove; 5, slider; 6, first cross bar; 7, rack; 8, second rotating rod; 9, second gear; 10, first gear; 11, turntable; 12, fixing plate; 13, latch; 14, hole; 15, first rotating rod; 16, hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides a technical solution: a butterfly valve for preventing the offset of a sealing rubber ring, comprising a valve body 1, two sealing strips 2 are arranged on the valve body 1, one of the sealing strips 2 is fixedly connected to the top of the valve body 1, and the other sealing strip 2 is fixedly connected to the bottom of the valve body 1, a first slide groove 4 is opened on the side wall of the valve body 1, a slider 5 is slidably connected to the inner cavity of the first slide groove 4, a first cross bar 6 is fixedly connected to the side wall of the slider 5, the first cross bar 6 penetrates the first slide groove 4 and extends to the outside of the first slide groove 4, a flow plate 3 is arranged in the inner cavity of the valve body 1, a first rotating rod 15 is fixedly connected to the flow plate 3, the right end of the first rotating rod 15 penetrates the flow plate 3 and extends to the outside of the flow plate 3, and is movably connected to the inner cavity side wall of the valve body 1 through a bearing, the left side of the first rotating rod 15 penetrates the flow plate 3 and the outside of the valve body 1 in turn, and is fixedly connected to a first gear 10, a rack 7 is meshed with the first gear 10 and the second gear 9, and an adjusting mechanism is arranged below the first gear 10;

[0019] The regulating mechanism comprises a rack 7, a side wall of the rack 7 is fixedly connected to the right end of the first cross bar 6, a second rotating rod 8 is arranged above the rack 7, a rotating disk 11 is fixedly connected to the right end of the second rotating rod 8, a fixing plate 12 is fixedly connected to the side wall of the valve body 1, a blind hole is opened on the fixing plate 12, a plurality of holes 14 are opened on the rotating disk 11, a latch 13 is arranged on the left side of the rotating disk 11, the latch 13 passes through the hole 16, extends to the outside of the rotating disk 11, and is plugged into the inner cavity of the blind hole 14, the second rotating rod 8 is movably connected to the side wall of the valve body 1 through a bearing, and a second gear 9 is fixedly connected to the second rotating rod 8, so as to adjust the flow plate 3 and adjust the water flow.

[0020] Working principle: When the utility model is in use, the latch 13 can be unplugged first, and then the turntable 11 is rotated. The turntable 11 drives the second rotating rod 8 to rotate, and the second rotating rod 8 drives the second gear 9 to rotate. The second gear 9 drives the rack 7 to move, and the rack 7 drives the first gear 10 to rotate. The first gear 10 and the first rotating rod 15 rotate, and the first rotating rod 15 drives the flow plate 3 to rotate. When it rotates to a certain position, the turntable 11 can be stopped, and then the latch 13 passes through the hole 16 on the turntable 11, and then is inserted into the inner cavity of the blind hole 14. The rotation of the turntable 11 can realize the rotation of the flow plate 3, thereby preventing the flow plate 3 from being adjusted in different directions. The above is the entire working process of the utility model.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A butterfly valve for preventing a sealing rubber ring from deflecting, comprising a valve body (1), characterized in that: The valve body (1) is provided with two sealing strips (2). The inner cavity of the valve body (1) is provided with a flow plate (3). The flow plate (3) is fixedly connected with a first rotating rod (15). The right end of the first rotating rod (15) passes through the flow plate (3) and extends to the outside of the flow plate (3). It is movably connected to the inner cavity side wall of the valve body (1) through a bearing. The left side of the first rotating rod (15) passes through the flow plate (3) and the outside of the valve body (1) in turn, and is fixedly connected with a first gear (10). An adjusting mechanism is provided below the first gear (10).

2. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 1, characterized in that: One of the sealing strips (2) is fixedly connected to the top end of the valve body (1), and the other sealing strip (2) is fixedly connected to the bottom end of the valve body (1).

3. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 1, characterized in that: The side wall of the valve body (1) is provided with a first slide groove (4), the inner cavity of the first slide groove (4) is slidably connected to a slider (5), the side wall of the slider (5) is fixedly connected to a first cross bar (6), and the first cross bar (6) passes through the first slide groove (4) and extends to the outside of the first slide groove (4).

4. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 1, characterized in that: The regulating mechanism comprises a rack (7), a side wall of the rack (7) being fixedly connected to the right end of the first cross bar (6), a second rotating rod (8) being provided above the rack (7), the second rotating rod (8) being movably connected to the side wall of the valve body (1) via a bearing, and a second gear (9) being fixedly connected to the second rotating rod (8).

5. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 4, characterized in that: The rack (7) is meshed with the first gear (10) and the second gear (9).

6. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 4, characterized in that: The right end of the second rotating rod (8) is fixedly connected to a rotating disk (11), the side wall of the valve body (1) is fixedly connected to a fixing plate (12), and a blind hole (14) is provided on the fixing plate (12).

7. A butterfly valve for preventing the sealing rubber ring from deflecting according to claim 6, characterized in that: The turntable (11) is provided with a plurality of holes (16). A latch (13) is provided on the left side of the turntable (11). The latch (13) passes through the hole (16), extends to the outside of the turntable (11), and is plugged into the inner cavity of the blind hole (14).

Images