Flap valve

Abstract

The utility model belongs to the technical field of flap valves, and particularly relates to a flap valve which comprises a connecting pipe, a sealing plate is installed in the connecting pipe, an annular magnetic plate is fixedly connected to the edge of the sealing plate, and a plurality of arc-shaped magnetic plates are annularly and evenly distributed on the outer side of the annular magnetic plate. A connecting wall is fixedly connected between every two adjacent arc-shaped magnetic plates, the other side of each connecting wall is fixedly connected with the annular magnetic plate, and sealing rings are installed outside the arc-shaped magnetic plates; the arc-shaped magnetic plates are attached to the inner wall of the sealing ring in the direction close to the inner wall of the sealing ring by means of mutual repulsion and separation of homopolar magnetic poles, and extrusion acting force is applied to the inner wall of the sealing ring, so that the sealing ring and the inner wall of an external connecting pipe can be in a good sealing state in a closed state; the influence on the sealing between the edge of the sealing plate and the inner cavity of the connecting pipe due to the aging of the sealing element can be avoided when the sealing element is used for sealing.

Description

Technical Field

[0001] The utility model belongs to the technical field of flap valves, and in particular relates to a flap valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member as a disc, which rotates around the valve axis to achieve opening and closing. During the use of the flap valve, when the sealing ring at the edge of the closing member ages, the elasticity of the sealing member decreases and the sealing effect decreases, which may cause internal leakage of the entire flap valve during use. Utility Model Content

[0003] The utility model provides a flap valve, which utilizes an annular magnetic plate and an arc-shaped magnetic plate with the same magnetic poles to apply a squeezing force to the inner wall of a sealing ring, thereby avoiding the influence of aging of the sealing component on the seal between the edge of the sealing plate and the inner cavity of the connecting pipe during sealing by the sealing component, thereby helping to improve the sealing performance of the entire valve body during use.

[0004] The utility model provides the following technical solutions: a flap valve, comprising a connecting pipe, a sealing plate installed inside the connecting pipe, an annular magnetic plate fixedly connected to the edge of the sealing plate, and a plurality of arc-shaped magnetic plates evenly distributed in an annular shape on the outside of the annular magnetic plate, and a connecting wall fixedly connected between two adjacent arc-shaped magnetic plates, the other side of the connecting wall is fixedly connected to the annular magnetic plate, sealing rings are installed outside the plurality of arc-shaped magnetic plates, and the sealing rings are wrapped around the outer edge of the sealing plate, an adjusting rod is installed on one side of the sealing plate, and one end of the adjusting rod passes through the outside of the connecting pipe.

[0005] The connecting tube is symmetrically provided with mounting grooves, and the lower end of the adjusting rod is rotatably connected to one of the mounting grooves, and the upper end of the adjusting rod passes through the other mounting groove to the outside of the connecting tube.

[0006] Wherein, an annular connecting seat is symmetrically fixedly connected to the outer side of the sealing plate, and the annular connecting seat is sleeved on the outside of the adjusting rod.

[0007] Wherein, the outer rotating sleeve of the outer end of the adjusting rod is provided with a protective ring, and the protective ring is fixedly connected to the top of the connecting pipe.

[0008] Wherein, the top of the protective ring is rotatably connected with an adjusting ring, and the bottom of the adjusting ring is fixedly connected to the top of the adjusting rod.

[0009] Wherein, a clearance groove is opened on the outer side of the sealing plate, and the annular magnetic plate, the arc-shaped magnetic plate and the connecting wall are all located inside the clearance groove.

[0010] The beneficial effect of the utility model is that under the mutual cooperation of the annular magnetic plate, the arc-shaped magnetic plate and the connecting wall, a reinforcement component for fastening the sealing ring and the inner cavity of the connecting pipe is formed, and under the mutual cooperation of the annular magnetic plate, a plurality of arc-shaped magnetic plates use the mutual repulsion of magnetic poles of the same poles to move away from each other. At this time, the arc-shaped magnetic plate fits in the direction close to the inner wall of the sealing ring and applies a squeezing force to the inner wall of the sealing ring, so that the sealing ring can be in a good sealing state with the inner wall of the external connecting pipe in a closed state, and the annular magnetic plate and the arc-shaped magnetic plate with the same magnetic poles apply a squeezing force to the inner wall of the sealing ring, which can avoid the influence of the aging of the seal on the seal between the edge of the sealing plate and the inner cavity of the connecting pipe during the sealing by the seal, thereby helping to improve the sealing of the entire valve body during use.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the main cross-sectional structure between the sealing plate and the annular magnetic plate, the arc-shaped magnetic plate, the connecting wall, and the sealing ring in the utility model;

[0014] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the details of the middle part A;

[0015] Figure 4 It is a schematic diagram of the side cross-sectional structure between the sealing plate and the annular magnetic plate, the arc-shaped magnetic plate, the connecting wall and the sealing ring in the utility model.

[0016] In the figure: 1, connecting pipe; 11, mounting groove; 2, sealing plate; 21, annular magnetic plate; 22, arc-shaped magnetic plate; 23, connecting wall; 24, sealing ring; 25, clearance groove; 3, adjusting rod; 31, annular connecting seat; 32, adjusting ring; 321, protective ring. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4The utility model provides the following technical solutions: a flap valve, comprising a connecting pipe 1, a sealing plate 2 is installed inside the connecting pipe 1, an annular magnetic plate 21 is fixedly connected to the edge of the sealing plate 2, and a plurality of arc-shaped magnetic plates 22 are evenly distributed in an annular shape on the outer side of the annular magnetic plate 21, and a connecting wall 23 is fixedly connected between two adjacent arc-shaped magnetic plates 22, the other side of the connecting wall 23 is fixedly connected to the annular magnetic plate 21, a sealing ring 24 is installed outside the plurality of arc-shaped magnetic plates 22, and the sealing ring 24 is wrapped around the outer edge of the sealing plate 2, an adjusting rod 3 is installed on one side of the sealing plate 2, and one end of the adjusting rod 3 passes through the outside of the connecting pipe 1.

[0018] In this embodiment: the connecting pipe 1 is the outer shell of the entire valve body, which is used to connect with the pipes on both sides. The sealing plate 2 located in the connecting pipe 1 is an adjusting member in the entire valve body for opening and closing the channel of the entire valve body, and the adjusting rod 3 is an adjusting member that drives the sealing plate 2 to flip. The annular magnetic plate 21 and the arc-shaped magnetic plate 22 located at the edge of the sealing plate 2 form a reinforcement component for fastening the sealing ring 24 and the inner cavity of the connecting pipe 1, and the connecting wall 23 is used to provide a carrier for connecting the annular magnetic plate 21 and several arc-shaped magnetic plates 22, and the several arc-shaped magnetic plates 22, under the mutual cooperation of the annular magnetic plate 21, use the mutual repulsion of the same poles to move away from each other, and at this time the arc-shaped magnetic plate 22 sticks to the direction close to the inner wall of the sealing ring 24. The sealing ring 24 is closed and exerts a squeezing force on the inner wall of the sealing ring 24, so that the sealing ring 24 can be in a good sealing state with the inner wall of the external connecting pipe 1 in the closed state, and the annular magnetic plate 21 and the arc-shaped magnetic plate 22 with the same magnetic poles exert a squeezing force on the inner wall of the sealing ring 24, which can avoid the influence of the aging of the sealing member on the sealing between the edge of the sealing plate 2 and the inner cavity of the connecting pipe 1 during the sealing by the sealing member, thereby helping to improve the sealing performance of the entire valve body during use. The adjusting rod 3 is an adjusting member that drives the sealing plate 2 to rotate. When it is necessary to open the channel in the connecting pipe 1, the opening of the inner cavity passage of the connecting pipe 1 can be completed by adjusting the angle between the sealing plate 2 and the inner cavity of the connecting pipe 1.

[0019] The inside of the connecting tube 1 is symmetrically provided with mounting grooves 11, and the lower end of the adjusting rod 3 is rotatably connected to one of the mounting grooves 11, and the upper end of the adjusting rod 3 passes through the other mounting groove 11 to the connecting tube 1; wherein the mounting groove 11 is used to provide a connection carrier for the end of the adjusting rod 3.

[0020] An annular connection seat 31 is symmetrically fixedly connected to the outer side of the sealing plate 2 , and the annular connection seat 31 is sleeved on the outside of the adjusting rod 3 ; wherein the annular connection seat 31 is used to provide a carrier for connecting the sealing plate 2 and the adjusting rod 3 .

[0021] The outer rotating sleeve of the outer end of the adjusting rod 3 is provided with a protective ring 321, and the protective ring 321 is fixedly connected to the top of the connecting tube 1, the top of the protective ring 321 is rotatably connected with an adjusting ring 32, and the bottom of the adjusting ring 32 is fixedly connected to the top of the adjusting rod 3; wherein the adjusting ring 32 and the protective ring 321 cooperate with each other to form an adjusting component that drives the adjusting rod 3 to rotate.

[0022] A clearance groove 25 is provided on the outer side of the sealing plate 2, and the annular magnetic plate 21, the arc-shaped magnetic plate 22, and the connecting wall 23 are all located inside the clearance groove 25; wherein the clearance groove 25 is used to provide a connecting carrier for the annular magnetic plate 21, the arc-shaped magnetic plate 22 and the connecting wall 23.

[0023] The working principle and use process of the utility model are as follows: during the use of the entire flap valve, when it is necessary to open and close the channel inside the connecting pipe 1, the adjusting ring 32 can be used to drive the adjusting rod 3 to rotate, and during the rotation of the adjusting rod 3, the sealing plate 2 can be driven to rotate synchronously to complete the opening and closing of the channel of the connecting pipe 1. During the use of the entire flap valve, the sealing ring 24 can form a component for reinforcing the sealing ring 24 under the cooperation of the annular magnetic plate 21 and the arc-shaped magnetic plate 22, and a plurality of arc-shaped magnetic plates 22 can repel each other with the same poles under the cooperation of the annular magnetic plate 21. At this time, the arc-shaped magnetic plate 22 fits in the direction close to the inner wall of the sealing ring 24, and applies a squeezing force to the inner wall of the sealing ring 24, so that the sealing ring 24 can be in a good sealing state with the inner wall of the external connecting pipe 1 in the closed state.

Claims

1. A flap valve, comprising a connecting pipe (1), characterized in that: A sealing plate (2) is installed inside the connecting pipe (1), an annular magnetic plate (21) is fixedly connected to the edge of the sealing plate (2), and a plurality of arc-shaped magnetic plates (22) are evenly distributed in an annular shape on the outer side of the annular magnetic plate (21), and a connecting wall (23) is fixedly connected between two adjacent arc-shaped magnetic plates (22), and the other side of the connecting wall (23) is fixedly connected to the annular magnetic plate (21), and a sealing ring (24) is installed outside the plurality of arc-shaped magnetic plates (22), and the sealing ring (24) is wrapped around the outer edge of the sealing plate (2), and an adjusting rod (3) is installed on one side of the sealing plate (2), and one end of the adjusting rod (3) passes through the outside of the connecting pipe (1).

2. A flap valve according to claim 1, characterized in that: The connecting pipe (1) is symmetrically provided with mounting grooves (11), and the lower end of the adjusting rod (3) is rotatably connected to one of the mounting grooves (11), while the upper end of the adjusting rod (3) passes through the other mounting groove (11) to the outside of the connecting pipe (1).

3. A flap valve according to claim 1, characterized in that: An annular connection seat (31) is symmetrically and fixedly connected to the outer side of the sealing plate (2), and the annular connection seat (31) is sleeved on the outside of the adjusting rod (3).

4. The flap valve according to claim 1, characterized in that: A protective ring (321) is provided on the outer rotating sleeve of the outer end of the adjusting rod (3), and the protective ring (321) is fixedly connected to the top of the connecting pipe (1).

5. A flap valve according to claim 4, characterized in that: The top of the protective ring (321) is rotatably connected to an adjustment ring (32), and the bottom of the adjustment ring (32) is fixedly connected to the top of the adjustment rod (3).

6. The flap valve according to claim 1, characterized in that: A clearance groove (25) is provided on the outer side of the sealing plate (2), and the annular magnetic plate (21), the arc-shaped magnetic plate (22) and the connecting wall (23) are all located inside the clearance groove (25).

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