A bidirectional seal industrial valve device

Abstract

The utility model provides a kind of two-way sealing industrial valve device, belong to valve technical field, to solve the existing two-way sealing butterfly valve in flow regulation process, it is difficult to intuitively, accurately determine the butterfly plate opening, and control handle lacks the problem of anti-misoperation limiting structure after flow regulation is completed, including valve seat, follower, fixed base, flow control assembly and quick switch assembly;The follower is slidably connected at the top of valve stem;The fixed base is fixedly connected at the top of valve seat;The flow control assembly is arranged at the top of valve seat;The quick switch assembly is arranged below control handle.The utility model realizes the intuitive visualization of butterfly plate opening, and guarantees the stable operation of pipeline system by anti-misoperation limiting, by the mode that gripper drives follower and cooperating piece to move up to higher than control column, meets the quick response demand of pipeline system to medium flow, guarantees the stable operation of pipeline system.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and more specifically, it relates to a bidirectional sealing industrial valve device. Background Technology

[0002] A bidirectional sealing butterfly valve is a type of industrial valve that can achieve a seal from both sides of the valve to prevent media leakage. The core of the valve is to achieve a bidirectional sealing effect through the tight fit between the valve disc and the sealing ring. It is controlled by rotating the valve disc (usually 90° rotation is enough to open and close). It is easy to operate and has a fast response. Existing bidirectional sealing butterfly valves generally consist of a valve seat, a butterfly plate, a sealing ring, and a valve stem and handle that control the rotation of the butterfly plate.

[0003] The existing application number is CN201520679716.9. This utility model provides a bidirectional hard-seal butterfly valve, including flanges fixed at both ends of the valve body, stiffening plates on the outer wall of the valve body, and a valve seat ring on the inner wall of the valve body. Each valve seat is divided into upper and lower semicircles. One end of the upper semicircular valve seat is fixed to the inner wall of the valve body, and the other end has a first sealing slope. The first sealing slope cooperates with the second sealing slope of the upper semicircle of the sealing ring for sealing. The other end of the sealing ring is fixed to the fixed end of the pressure plate. The pressure plate is fixed to the valve plate by bolts. A flow-through part is fixed on the inner side of the valve plate. The flow-through part is fixed to the valve stem by an installation part. A connecting plate is fixed to the flow-through part near the high-pressure side of the valve body. The valve stem at the right end passes through the end cover and is installed in the worm gear box. The valve stem part is a worm structure that cooperates with the worm gear connected to the output shaft of the electric actuator for transmission. This utility model has reliable sealing performance, and the valve plate can automatically and tightly close.

[0004] Based on the above, during the flow regulation process, it is difficult to intuitively and accurately judge the opening of the butterfly plate of the bidirectional sealing butterfly valve. Relying solely on the operator's experience leads to insufficient flow regulation accuracy and an inability to precisely control the flow of the medium in the pipeline. After adjustment, there is a lack of anti-accidental contact restriction structure. If nearby personnel accidentally touch the control handle, it may cause unexpected fluctuations in the flow of the medium in the pipeline, affecting the stable operation of the pipeline system. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a bidirectional sealing industrial valve device. This addresses the issues of existing bidirectional sealing butterfly valves, where it is difficult to intuitively and accurately determine the butterfly plate opening during flow regulation, relying solely on operator experience, resulting in insufficient flow regulation accuracy and inability to precisely control the flow of media in the pipeline. Furthermore, the lack of an anti-accidental touch restriction structure after adjustment means that accidental touches by surrounding personnel may cause unexpected fluctuations in the flow of media in the pipeline, affecting the stable operation of the pipeline system.

[0006] The purpose and effect of this utility model of a bidirectional sealing industrial valve device are achieved by the following specific technical means: A bidirectional sealing industrial valve device includes a valve seat, a valve stem, a butterfly plate, a control handle, a follower, a fixed seat, a flow control assembly, and a quick-switch assembly. The valve stem is rotatably connected inside the valve seat. The butterfly plate is fixedly connected to the left side of the valve stem. The control handle is fixedly connected to the top of the valve stem. The follower is slidably connected to the top of the valve stem. The fixed seat is fixedly connected to the top of the valve seat. The flow control assembly is disposed on the top of the valve seat. The quick-switch assembly is disposed below the control handle.

[0007] Furthermore, the flow control component includes: an indicator needle and a scale mark; the indicator needle is fixedly connected to the bottom left side of the follower; multiple scale marks are provided, and the multiple scale marks are respectively fixedly connected to the top of the mounting base.

[0008] Furthermore, the flow control assembly also includes: a fixed box, a control column, and an operation panel; multiple fixed boxes are provided, and the multiple fixed boxes are respectively fixedly connected to the top of the valve seat; multiple control columns are provided, and the multiple control columns are respectively slidably connected inside the fixed box; multiple operation panels are provided, and the multiple operation panels are respectively fixedly connected to the bottom outer side of the control column.

[0009] Furthermore, the flow control component also includes: a mating part and a return spring; the mating part has a U-shaped structure, and the top left end of the mating part is fixedly connected to the bottom right side of the follower; multiple return springs are provided, the bottoms of the multiple return springs are respectively fixedly connected to the inside of the fixing box, and the tops of the multiple return springs are respectively fixedly connected to the bottom of the control column.

[0010] Furthermore, the quick-switch assembly includes a gripper and a guide post; the gripper is fixedly connected to the right side of the follower; and the guide post is fixedly connected above the gripper.

[0011] Furthermore, the quick-switch assembly also includes: a guide box and a positioning spring; the guide box is fixedly connected below the control handle, and the guide box is sleeved on the outside of the guide post; the bottom of the positioning spring is fixedly connected above the guide post, and the top of the positioning spring is fixedly connected inside the guide box.

[0012] Compared with the prior art, the present invention has the following beneficial effects: First, by using the indicator pin at the bottom of the follower to cooperate with the scale markings on the fixed seat, the opening degree of the butterfly plate is visualized intuitively, allowing operators to accurately control the flow rate of the pipeline medium and significantly improve the accuracy of flow regulation. By restricting the lower end of the mating part between adjacent control columns, an effective anti-accidental touch limit is formed, preventing accidental touches by surrounding personnel from causing unexpected fluctuations in the flow rate of the pipeline medium, thus ensuring the stability of the pipeline system operation.

[0013] Secondly, when the butterfly plate needs to be opened or closed quickly, the operator can move the gripper upward while holding the control handle, so that the follower and mating parts can be moved up to a position higher than the control column. The butterfly plate opening can be quickly and significantly adjusted without repeatedly operating the control column, which significantly improves the efficiency of valve opening and closing and large-scale opening adjustment, and meets the needs of pipeline systems for rapid response to medium flow.

[0014] This invention enables intuitive visualization of the butterfly valve opening and ensures stable operation of the pipeline system through anti-accidental contact limit. By using a gripper to move the follower and mating parts upwards to a position higher than the control column, it meets the pipeline system's requirement for rapid response to medium flow. Overall, it solves the core pain points of existing bidirectional sealing butterfly valves in terms of flow control accuracy and operational safety, and ensures the stable operation of the pipeline system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the valve stem structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the follower structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the fixed base structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the fixing box structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the guide column structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Valve seat; 2. Valve stem; 3. Butterfly plate; 4. Control handle; 401. Guide box; 5. Follower; 501. Indicator needle; 502. Mating part; 503. Guide column; 504. Positioning spring; 505. Grip; 6. Fixed seat; 601. Scale marking; 7. Fixed box; 8. Control column; 801. Operation panel; 802. Return spring. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example 1: As attached Figure 1 To be continued Figure 6 As shown: This utility model provides a bidirectional sealing industrial valve device, including a valve seat 1, a valve stem 2, a butterfly plate 3, a control handle 4, a follower 5, a fixed seat 6, and a flow control assembly; the valve stem 2 is rotatably connected inside the valve seat 1; the butterfly plate 3 is fixedly connected to the left side of the valve stem 2; the control handle 4 is fixedly connected to the top of the valve stem 2; the follower 5 is slidably connected to the top of the valve stem 2; the fixed seat 6 is fixedly connected to the top of the valve seat 1; and the flow control assembly is disposed on the top of the valve seat 1.

[0024] The flow control component includes: an indicator needle 501 and a scale mark 601; the indicator needle 501 is fixedly connected to the bottom left side of the follower 5; multiple scale marks 601 are provided, and the multiple scale marks 601 are respectively fixedly connected to the top of the fixed base 6.

[0025] The flow control assembly also includes: a fixed box 7, a control column 8, and an operation panel 801; multiple fixed boxes 7 are provided, and multiple fixed boxes 7 are fixedly connected to the top of the valve seat 1; multiple control columns 8 are provided, and multiple control columns 8 are slidably connected inside the fixed box 7; multiple operation panels 801 are provided, and multiple operation panels 801 are fixedly connected to the bottom outer side of the control column 8.

[0026] The flow control component also includes: a mating part 502 and a return spring 802; the mating part 502 has a U-shaped structure, and the top left end of the mating part 502 is fixedly connected to the bottom right side of the follower part 5; multiple return springs 802 are provided, and the bottom of the multiple return springs 802 are respectively fixedly connected to the inside of the fixing box 7, and the top of the multiple return springs 802 are respectively fixedly connected to the bottom of the control column 8.

[0027] The specific usage and function of this embodiment are as follows: During use, the opening degree of the butterfly plate 3 can be clearly observed through the scale mark 601 pointed to by the indicator needle 501 at the bottom of the follower 5. When the opening degree needs to be adjusted, the multiple operating plates 801 close to the mating part 502 are pressed down in sequence, which drives the corresponding control column 8 to move down, thereby releasing the movement restriction of the control column 8 on the bottom of the mating part 502. During the process, the control handle 4 is rotated clockwise, which drives the butterfly plate 3 to open through the valve stem 2. The follower 5 moves accordingly. When the indicator needle 501 moves to the scale mark 601 of the required opening degree, the multiple operating plates 801 that were previously pressed down are released. Under the rebound action of the return spring 802, the control column 8 moves up, thereby restricting the lower end of the mating part 502 between the two adjacent control columns 8. This not only makes the flow regulation more accurate, but also avoids the flow fluctuation of the pipeline medium caused by accidental touch of the control handle 4 by surrounding personnel.

[0028] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, it also includes a quick-switch assembly, which is located below the control handle 4.

[0029] The quick-switch assembly includes a gripper 505 and a guide post 503; the gripper 505 is fixedly connected to the right side of the follower 5; and the guide post 503 is fixedly connected above the gripper 505.

[0030] The quick-switch assembly also includes: a guide box 401 and a positioning spring 504; the guide box 401 is fixedly connected to the bottom of the control handle 4 and is sleeved on the outside of the guide post 503; the bottom of the positioning spring 504 is fixedly connected to the top of the guide post 503 and the top of the positioning spring 504 is fixedly connected to the inside of the guide box 401.

[0031] The specific usage and function of this embodiment are as follows: When it is necessary to quickly open or close the butterfly plate 3, simply hold the control handle 4 and use your fingers to move the gripper 505 upwards in sync. Under the guidance of the guide post 503 and the guide box 401, the follower 5 and the mating part 502 move upwards in sync, so that the bottom of the mating part 502 is higher than the control post 8, thereby allowing for quick and large-scale adjustment of the opening degree of the butterfly plate 3. After adjustment, release the gripper 505. Under the rebound action of the positioning spring 504, the gripper 505 drives the follower 5 to move downwards, and the mating part 502 returns to its original position, with its bottom once again lower than the control post 8, making it convenient for the next use.

[0032] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0033] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0034] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A bidirectional sealing industrial valve device, characterized in that: It includes a valve seat (1), a valve stem (2), a butterfly plate (3), a control handle (4), a follower (5), a fixed seat (6), a flow control assembly, and a quick-switch assembly; the valve stem (2) is rotatably connected inside the valve seat (1); the butterfly plate (3) is fixedly connected to the left side of the valve stem (2); the control handle (4) is fixedly connected to the top of the valve stem (2); the follower (5) is slidably connected to the top of the valve stem (2); the fixed seat (6) is fixedly connected to the top of the valve seat (1); the flow control assembly is located on the top of the valve seat (1); and the quick-switch assembly is located below the control handle (4).

2. The bidirectional sealing industrial valve device as described in claim 1, characterized in that: The flow control component includes: an indicator needle (501) and a scale mark (601); the indicator needle (501) is fixedly connected to the bottom left side of the follower (5); multiple scale marks (601) are provided, and the multiple scale marks (601) are respectively fixedly connected to the top of the fixing seat (6).

3. The bidirectional sealing industrial valve device as described in claim 1, characterized in that: The flow control assembly further includes: a fixed box (7), a control column (8), and an operation plate (801); multiple fixed boxes (7) are provided, and multiple fixed boxes (7) are respectively fixedly connected to the top of the valve seat (1); multiple control columns (8) are provided, and multiple control columns (8) are respectively slidably connected inside the fixed box (7); multiple operation plates (801) are provided, and multiple operation plates (801) are respectively fixedly connected to the bottom outer side of the control column (8).

4. The bidirectional sealing industrial valve device as described in claim 3, characterized in that: The flow control assembly further includes: a mating part (502) and a reset spring (802); the mating part (502) has a U-shaped structure, and the top left end of the mating part (502) is fixedly connected to the bottom right side of the follower (5); multiple reset springs (802) are provided, and the bottom of the multiple reset springs (802) are respectively fixedly connected to the inside of the fixing box (7), and the top of the multiple reset springs (802) are respectively fixedly connected to the bottom of the control column (8).

5. The bidirectional sealing industrial valve device as described in claim 1, characterized in that: The quick-switch assembly includes a gripper (505) and a guide post (503); the gripper (505) is fixedly connected to the right side of the follower (5); the guide post (503) is fixedly connected above the gripper (505).

6. The bidirectional sealing industrial valve device as described in claim 5, characterized in that: The quick-switch assembly also includes: a guide box (401) and a positioning spring (504); the guide box (401) is fixedly connected below the control handle (4), and the guide box (401) is sleeved on the outside of the guide post (503); the bottom of the positioning spring (504) is fixedly connected above the guide post (503), and the top of the positioning spring (504) is fixedly connected inside the guide box (401).

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