Anti-vibration and anti-impact containment isolation butterfly valve

Abstract

The invention provides an anti-vibration impact containment isolation butterfly valve, and relates to the technical field of valves. The anti-vibration and anti-impact containment isolation butterfly valve comprises a valve body, the valve body is provided with a rod piece channel, the upper surface of the rod piece channel is fixedly connected with a valve cover, the inner cylindrical surface of a through round hole of the valve cover is fixedly connected with a bearing, the inner cylindrical surface of the bearing is fixedly connected with a valve rod, and the bottom end of the valve rod is fixedly connected with a butterfly plate. An arc-shaped sliding groove is formed in the upper surface of the valve cover, a movable limiting mechanism is slidably connected into the arc-shaped sliding groove, a first limiting block is fixedly connected to the portion, close to the bearing, of the upper surface of the valve cover, a second limiting block is fixedly connected to the portion, away from the first limiting block, of the upper surface of the valve cover, and a collision plate is fixedly connected to the cylindrical surface of the valve rod. The path moving mechanism and the erasing mechanism are used, the moving limiting mechanism moves in the arc-shaped sliding groove and is matched with the collision plate on the valve rod, the opening angle of the butterfly plate can be accurately determined, and therefore the flow of the butterfly valve is accurately controlled.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to a shock-resistant containment butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve that uses a disc-shaped opening and closing element to rotate approximately 90° to open, close, or regulate the flow of media. Butterfly valves are not only simple in structure, small in size, lightweight, economical in material consumption, compact in installation dimensions, low in driving torque, and easy and quick to operate, but they also simultaneously possess excellent flow regulation and sealing characteristics, making them one of the fastest-growing valve types in the past decade. The use of butterfly valves is very widespread. The variety and quantity used continue to expand, and they are developing towards high temperature, high pressure, large diameter, high sealing performance, long service life, excellent regulation characteristics, and multi-functional applications. Their reliability and other performance indicators have reached a high level.

[0003] When applying for this invention, the applicant, through a search, discovered a Chinese patent disclosing a "novel butterfly valve," application number "202121167092.4." This patent primarily utilizes a wear-resistant and corrosion-resistant outer plate to give the butterfly valve's disc a corrosion-resistant function, preventing corrosion and wear caused by prolonged opening and closing in certain media, and enhancing the sealing between the disc and the valve cavity. Although the patent guarantees the butterfly valve's sealing performance in its specification, its regulating function is weaker than its opening and closing function, failing to precisely control the flow rate as needed. Therefore, based on the applicant's invention, a butterfly valve capable of precisely regulating the flow rate of water according to usage requirements has been invented, solving the problem of the weak regulating capacity of traditional butterfly valves. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a shock-resistant containment butterfly valve that solves the problem of weak regulation capability in traditional butterfly valves.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a shock-resistant containment butterfly valve, comprising a valve body, wherein the valve body is provided with a rod channel, a valve cover is fixedly connected to the upper surface of the rod channel, a through circular hole is provided at the center of the valve cover, a bearing is fixedly connected to the cylindrical surface of the through circular hole of the valve cover, a valve stem is fixedly connected to the cylindrical surface of the bearing, the valve stem passes through the rod channel, a butterfly plate is fixedly connected to the bottom end of the valve stem, the butterfly plate is located at the center of the flow channel of the valve body, an arc-shaped groove is provided on the upper surface of the valve cover, the arc-shaped groove has an inverted T-shaped cross-section, a movable limiting mechanism is slidably connected in the arc-shaped groove, a first limiting block is fixedly connected to the upper surface of the valve cover near the bearing, a second limiting block is fixedly connected to the upper surface of the valve cover away from the first limiting block, a collision plate is fixedly connected to the cylindrical surface of the valve stem, the collision plate is located between the first limiting block and the second limiting block, and the lower surface of the collision plate is lower than the height of the upper surfaces of the first limiting block and the second limiting block. The valve stem is designed to facilitate the rotation of the butterfly plate, thereby enabling the valve to open, close, and regulate flow. The arc-shaped groove facilitates its engagement with the sliding base of the moving limit mechanism, thus determining the movement trajectory of the moving limit mechanism. The first limit block is designed to determine the valve stem angle when the butterfly valve is fully open. The first limit block is designed to determine the valve stem angle when the butterfly valve is fully closed. The collision plate is designed to facilitate contact with the first limit plate, the second limit plate, and the sliding limit block in the moving limit mechanism, thereby restricting the rotation of the valve stem and determining the valve stem angle.

[0006] Preferably, a support disc is fixedly connected to the cylindrical surface inside the stem channel near the butterfly plate. The support disc has a central hole with the same diameter as the valve stem. The valve stem passes through this central hole, and a sealing ring is fixedly connected to the cylindrical surface of the valve stem away from the support disc. The outer cylindrical surface of the sealing ring is in close contact with the inner cylindrical surface of the stem channel. The support disc is used to support the bottom of the valve stem, preventing it from warping or deforming under significant impact to the butterfly plate, thus enhancing the butterfly valve's impact resistance. The sealing ring is used to prevent water leakage.

[0007] Preferably, the moving limiting mechanism includes a sliding base, a motor, a rotating shaft, a gear, a sliding plate, a pressure rod, a sliding groove plate, a rubber block, an angle indicator arrow, and a sliding limiting block. The bottom of the sliding base is provided with a protruding block that cooperates with the arc-shaped sliding groove, and the sliding base is slidably connected in the arc-shaped sliding groove.

[0008] Preferably, the upper surface of the sliding base is provided with a T-slot near the valve stem, and the sliding limit block is slidably connected in the T-slot of the sliding base. The sliding limit block is provided to facilitate contact with the collision plate when the butterfly valve is not in a fully open or closed state, thereby determining the angle of valve stem rotation and thus the opening angle of the butterfly plate.

[0009] Preferably, the motor is fixedly connected to the upper surface of the sliding base, the rotating shaft is fixedly connected to the output end of the motor, and the gear is fixedly connected to the cylindrical surface of the rotating shaft. The motor is provided to facilitate the rotation of the rotating shaft and gear.

[0010] Preferably, the slide plate is fixedly connected to the upper surface of the sliding base, and the slide plate is provided with a vertical through-slide groove. The slide plate is provided to facilitate limiting the movement trajectory of the sliding plate.

[0011] Preferably, the sliding plate has a protruding block on its side surface that mates with the groove of the sliding plate, and a toothed groove on its side surface near the gear. The sliding plate is slidably connected in the groove of the sliding plate, and the toothed edge of the sliding plate meshes with the gear. The sliding plate is provided to facilitate its up-and-down movement when the gear rotates, thereby driving the pressure rod and rubber block to move up and down.

[0012] Preferably, the pressure rod is fixedly connected to the side surface of the sliding plate away from the gear, and the pressure rod is also fixed to the side of the sliding base away from the valve stem. The rubber block is fixedly connected to the lower surface of the pressure rod, and the angle indicator arrow is fixedly connected to the side surface of the sliding base near the valve stem. The rubber block is provided to reduce the impact on the moving limit mechanism when it contacts the upper surface of the valve cover. The angle indicator arrow allows the user to understand the angle of the valve stem when the collision plate and the sliding limit plate are in contact, enabling precise control of the valve stem angle, and thus, precise control of the butterfly plate angle.

[0013] Preferably, a rotating handle is fixedly connected to the upper surface of the valve stem. A threaded hole is provided on the rotating handle away from the valve stem, and a tightening screw is threaded into the threaded hole of the rotating handle. The rotating handle facilitates the rotation of the valve stem, and the tightening screw facilitates fixing the position of the valve stem after its angle has been determined, preventing rotation.

[0014] Preferably, an angle scale plate is fixedly connected to the upper surface of the valve cover, and the angle scale plate is located between the bearing and the arc-shaped slide groove.

[0015] Working principle: The first limit block, the second limit block, and the collision plate on the valve stem work together to determine the angle of the valve stem when the butterfly valve is fully open and fully closed. When the butterfly valve does not need to be fully open or fully closed, the angle of the butterfly plate is determined according to the usage requirements. Then, the sliding base is moved so that the angle indicator arrow points to the corresponding scale line on the angle scale plate to determine the position of the sliding base plate. Then, the motor is started to drive the rotating shaft and gear to rotate. When the gear rotates, it will drive the sliding plate meshing with it to move downward, which in turn drives the pressure rod and rubber block to move downward until the rubber block contacts the upper surface of the valve cover and presses the valve cover. At this time, the position of the sliding base is fixed. Then, the sliding limit block is pushed out from the T-slot towards the valve stem. Then, the rotating handle is turned to drive the valve stem to rotate until the collision plate on the valve stem and the side surface of the sliding limit block near the first limit plate contact. At this time, the angle between the valve stem and the butterfly plate is the required opening angle. Finally, the tranquilizing screw is tightened to fix the position of the valve stem.

[0016] Beneficial effects of this invention: 1. By moving the limiting mechanism in the arc-shaped groove and cooperating with the collision plate on the valve stem, the opening angle of the butterfly plate can be accurately determined, thereby accurately controlling the flow of the butterfly valve.

[0017] 2. The position of the sliding base can be quickly fixed and adjusted by means of motor, rotating shaft, gear, sliding plate, sliding groove plate, pressure rod and rubber block, thus improving adjustment efficiency.

[0018] 3. The support disc provides some support to the bottom of the valve stem, enhancing the butterfly valve's ability to withstand larger impacts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a shock-resistant containment isolation butterfly valve proposed in this invention. Figure 2 This is a cross-sectional view of the overall structure of a shock-resistant containment isolation butterfly valve proposed in this invention. Figure 3 This is a schematic diagram of the upper surface structure of the valve cover of a shock-resistant containment isolation butterfly valve proposed in this invention. Figure 4 This is a schematic diagram of the moving limit mechanism of a shock-resistant containment isolation butterfly valve proposed in this invention. Figure 5 This is a drawing of the sliding plate component of a shock-resistant containment butterfly valve proposed in this invention. Figure 6 This is a magnified view of a portion of the structure at point A of a shock-resistant containment butterfly valve proposed in this invention.

[0020] The components include: 1. Valve body; 101. Rod passage; 2. Butterfly plate; 3. Valve cover; 301. Arc-shaped slide groove; 4. Valve stem; 5. Moving limit mechanism; 501. Sliding base; 502. Motor; 503. Rotating shaft; 504. Gear; 505. Sliding plate; 506. Pressure rod; 507. Slide groove plate; 508. Rubber block; 509. Angle indicator arrow; 510. Sliding limit block; 6. Rotating handle; 7. Tightening screw; 8. Bearing; 9. Support disc; 10. Sealing ring; 11. Collision plate; 12. First limit block; 13. Second limit block; 14. Angle scale plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0022] like Figure 1-6 As shown, this embodiment of the invention provides a shock-resistant containment butterfly valve, including a valve body 1. The valve body 1 is provided with a rod channel 101. A valve cover 3 is fixedly connected to the upper surface of the rod channel 101. A through circular hole is provided in the center of the valve cover 3. A bearing 8 is fixedly connected to the cylindrical surface inside the through circular hole of the valve cover 3. A valve stem 4 is fixedly connected to the cylindrical surface inside the bearing 8. The valve stem 4 passes into the rod channel 101. A butterfly plate 2 is fixedly connected to the bottom end of the valve stem 4. The butterfly plate 2 is located at the center of the flow channel of the valve body 1. An arc-shaped sliding surface is provided on the upper surface of the valve cover 3. The groove 301 has an inverted T-shaped cross-section. A sliding limiting mechanism 5 is slidably connected within the groove 301. A first limiting block 12 is fixedly connected to the upper surface of the valve cover 3 near the bearing 8, and a second limiting block 13 is fixedly connected to the upper surface of the valve cover 3 away from the first limiting block 12. A collision plate 11 is fixedly connected to the cylindrical surface of the valve stem 4, positioned between the first limiting block 12 and the second limiting block 13. The lower surface of the collision plate 11 is lower than the height of the upper surfaces of the first and second limiting blocks 12. When the collision plate 11 contacts the first limiting block 12, the butterfly plate 2 is fully open; when the collision plate 11 contacts the second limiting block 13, the butterfly plate 2 is fully closed.

[0023] The movable limiting mechanism 5 includes a sliding base 501, a motor 502, a rotating shaft 503, a gear 504, a sliding plate 505, a pressure rod 506, a sliding groove plate 507, a rubber block 508, an angle indicator arrow 509, and a sliding limiting block 510. The bottom of the sliding base 501 is provided with a protruding block that cooperates with the arc-shaped sliding groove 301. The sliding base 501 is slidably connected in the arc-shaped sliding groove 301. The upper surface of the sliding base 501 is provided with a T-shaped groove near the valve stem 4. The sliding limiting block 510 is slidably connected in the T-shaped groove of the sliding base 501. Under normal circumstances, the sliding limit block 510 is completely retracted in the T-slot of the sliding base 501. At this time, when the valve stem 4 rotates, the collision plate 11 on its surface will not contact the sliding limit block 510. When the sliding limit block 510 is pushed out part of the way and can contact the collision plate 11, the angle of the butterfly plate 2 is determined only by the position of the side surface of the sliding limit block 510 near the first limit block 12 that contacts the collision plate 11.

[0024] The motor 502 is fixedly connected to the upper surface of the sliding base 501, the rotating shaft 503 is fixedly connected to the output end of the motor 502, and the gear 504 is fixedly connected to the cylindrical surface of the rotating shaft 503.

[0025] The slide plate 507 is fixedly connected to the upper surface of the sliding base 501. The slide plate 507 is provided with a vertical through slide groove. The side surface of the sliding plate 505 is provided with a protrusion that mates with the slide groove of the slide plate 507. The side surface of the sliding plate 505 near the gear 504 is provided with a toothed groove. The sliding plate 505 is slidably connected in the slide groove of the slide plate 507. The toothed groove edge of the sliding plate 505 meshes with the gear 504.

[0026] The pressure rod 506 is fixedly connected to the side surface of the sliding plate 505 away from the gear 504. The pressure rod 506 is also located on the side of the sliding base 501 away from the valve stem 4. The rubber block 508 is fixedly connected to the lower surface of the pressure rod 506. The angle indicator arrow 509 is fixedly connected to the side surface of the sliding base 501 near the valve stem 4. The angle indicator arrow 509 points to the angle scale plate 14, and the angle it points to is the angle of the butterfly plate 2 when the side surface of the sliding limit block 510 near the first limit block 12 contacts the collision plate 11.

[0027] A rotating handle 6 is fixedly connected to the upper surface of the valve stem 4. A threaded hole is provided on the rotating handle 6 away from the valve stem 4. A tightening screw 7 is threaded into the threaded hole of the rotating handle 6. An angle scale plate 14 is fixedly connected to the upper surface of the valve cover 3. The angle scale plate 14 is located between the bearing 8 and the arc-shaped slide groove 301.

[0028] The inner cylindrical surface of the rod channel 101 is fixedly connected to the support disk 9 near the butterfly plate 2. The support disk 9 has a circular hole with the same diameter as the valve stem 4 at its center. The valve stem 4 passes through the circular hole at the center of the support disk 9. The cylindrical surface of the valve stem 4 is fixedly connected to the sealing ring 10 away from the support disk 9. The outer cylindrical surface of the sealing ring 10 is in close contact with the inner cylindrical surface of the rod channel 101.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock-resistant containment butterfly valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a rod channel (101), and a valve cover (3) is fixedly connected to the upper surface of the rod channel (101). A through circular hole is provided in the center of the valve cover (3). A bearing (8) is fixedly connected to the cylindrical surface of the through circular hole of the valve cover (3). A valve stem (4) is fixedly connected to the cylindrical surface of the bearing (8). The valve stem (4) passes into the rod channel (101). A butterfly plate (2) is fixedly connected to the bottom end of the valve stem (4). The butterfly plate (2) is located at the center of the flow channel of the valve body (1). An arc-shaped groove (301) is provided on the upper surface of the valve cover (3). 1) The cross-section is inverted T-shaped. The arc-shaped sliding groove (301) is slidably connected to the moving limiting mechanism (5). The upper surface of the valve cover (3) is fixedly connected to the first limiting block (12) near the bearing (8). The upper surface of the valve cover (3) is fixedly connected to the second limiting block (13) away from the first limiting block (12). The cylindrical surface of the valve stem (4) is fixedly connected to the collision plate (11). The collision plate (11) is between the first limiting block (12) and the second limiting block (13). The lower surface of the collision plate (11) is lower than the height of the upper surface of the first limiting block (12) and the second limiting block (13).

2. The shock-resistant containment butterfly valve according to claim 1, characterized in that: The cylindrical surface inside the rod channel (101) is fixedly connected to the support disk (9) near the butterfly plate (2). The support disk (9) has a circular hole with the same diameter as the valve stem (4) at its center. The valve stem (4) passes through the circular hole at the center of the support disk (9). The cylindrical surface of the valve stem (4) is fixedly connected to the sealing ring (10) away from the support disk (9). The outer cylindrical surface of the sealing ring (10) is in close contact with the inner cylindrical surface of the rod channel (101).

3. The shock-resistant containment butterfly valve according to claim 1, characterized in that: The moving limiting mechanism (5) includes a sliding base (501), a motor (502), a rotating shaft (503), a gear (504), a sliding plate (505), a pressure rod (506), a sliding groove plate (507), a rubber block (508), an angle indicator arrow (509), and a sliding limiting block (510). The bottom of the sliding base (501) is provided with a protruding block that cooperates with the arc-shaped sliding groove (301). The sliding base (501) is slidably connected in the arc-shaped sliding groove (301).

4. A shock-resistant containment butterfly valve according to claim 3, characterized in that: The upper surface of the sliding base (501) near the valve stem (4) is provided with a T-shaped groove, and the sliding limit block (510) is slidably connected in the T-shaped groove of the sliding base (501).

5. A shock-resistant containment butterfly valve according to claim 3, characterized in that: The motor (502) is fixedly connected to the upper surface of the sliding base (501), the rotating shaft (503) is fixedly connected to the output end of the motor (502), and the gear (504) is fixedly connected to the cylindrical surface of the rotating shaft (503).

6. A shock-resistant containment butterfly valve according to claim 3, characterized in that: The slide plate (507) is fixedly connected to the upper surface of the sliding base (501), and the slide plate (507) is provided with a vertical through slide groove.

7. A shock-resistant containment butterfly valve according to claim 3, characterized in that: The sliding plate (505) has a protruding block on its side surface that engages with the groove of the sliding plate (507). The sliding plate (505) has a toothed groove on its side surface near the gear (504). The sliding plate (505) is slidably connected in the groove of the sliding plate (507). The toothed edge of the sliding plate (505) meshes with the gear (504).

8. A shock-resistant containment butterfly valve according to claim 3, characterized in that: The pressure rod (506) is fixedly connected to the side surface of the sliding plate (505) away from the gear (504). The pressure rod (506) is on the side of the sliding base (501) away from the valve stem (4). The rubber block (508) is fixedly connected to the lower surface of the pressure rod (506). The angle indicator arrow (509) is fixedly connected to the side surface of the sliding base (501) near the valve stem (4).

9. A shock-resistant containment butterfly valve according to claim 1, characterized in that: The upper surface of the valve stem (4) is fixedly connected to a rotating handle (6). The rotating handle (6) is provided with a threaded hole away from the valve stem (4). A tightening screw (7) is threaded into the threaded hole of the rotating handle (6).

10. A shock-resistant containment butterfly valve according to claim 1, characterized in that: An angle scale plate (14) is fixedly connected to the upper surface of the valve cover (3), and the angle scale plate (14) is between the bearing (8) and the arc-shaped slide groove (301).

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