Improved butterfly valve capable of preventing silt

Abstract

The utility model discloses an anti-sediment improved butterfly valve which comprises a butterfly valve body, a support is fixedly installed on the top of the butterfly valve body, and an electric actuator is fixedly connected to the top of the support. The protection mechanism is arranged to provide reliable protection for the electric actuator, the protection cover can be stably installed on the installation frame through the cooperation of the installation frame and the protection cover and the interaction of the inserting groove, the inserting block, the first clamping block and other components, direct impact of external objects on the electric actuator is avoided, and meanwhile the protection cover can be firmly installed on the installation frame. And through a locking structure composed of a handle, a movable rod, a second clamping block and the like, the mounting stability of the protection cover is further enhanced, the protection cover is convenient to mount and dismount, and then the electric actuator is convenient to maintain and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to an improved butterfly valve for preventing mud and sand. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used for on / off control of low-pressure pipeline media. A butterfly valve is a type of valve in which the closing element (valve disc or butterfly plate) is a disc that rotates around the valve shaft to achieve opening and closing.

[0003] A search revealed patent application CN201921730744.3, which discloses an electric butterfly valve. One end of the output spindle connected to the coupling is equipped with a spindle rotation limit device. The upper end of the output spindle passes through the housing of the electric actuator and houses a valve body open / close signal feedback device and a valve body open / close indicator device. A top cover is installed on the top of the electric actuator housing to cover the valve body open / close signal feedback device and the valve body open / close indicator device. However, in practical use, the above patent has the following drawbacks: the electric actuator of the electric butterfly valve is directly exposed to the outside environment and is easily damaged by impacts from the external environment. Therefore, we propose an improved butterfly valve that is resistant to mud and sand. Utility Model Content

[0004] The purpose of this invention is to provide an improved butterfly valve for preventing mud and sand, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved butterfly valve for preventing mud and sand, comprising a butterfly valve body, a bracket fixedly installed on the top of the butterfly valve body, an electric actuator fixedly connected to the top of the bracket, a valve stem fixedly connected to the output end of the electric actuator, the bottom end of the valve stem passing through the bracket and the butterfly valve body sequentially and extending into the interior of the butterfly valve body and fixedly connected to a valve plate, the valve stem being movably connected to the bracket, the valve stem being movably connected to the butterfly valve body, an inlet and a outlet respectively provided on the left and right sides of the butterfly valve body, a filter screen fixedly installed on the inner wall of the inlet, and a protective mechanism for protecting the electric actuator provided on the top of the butterfly valve body.

[0006] Furthermore, the protection mechanism includes a mounting frame, a protective cover, a plug slot, a plug block, a first slot, a through slot, a slide rod, a movable plate, a first locking block, a baffle, a handle, a movable rod, a base plate, a second locking block, a support plate, a second slot, and a sleeve spring. The top of the butterfly valve body is fixedly connected to the mounting frame, and the bracket is located inside the mounting frame.

[0007] Furthermore, a protective cover is movably connected to the top of the mounting frame, the electric actuator is located inside the protective cover, and insertion slots are provided on both the front and rear sides of the top of the mounting frame, with insertion blocks movably engaged inside the insertion slots.

[0008] Furthermore, the top of the plug-in block is fixedly connected to the bottom of the protective cover. A first slot is provided on the side of the plug-in block away from the bracket. Through slots are provided on both the front and rear sides of the mounting frame. The through slots and the plug-in slots are interconnected. Two sliding rods are fixedly connected to both the front and rear sides of the mounting frame. The two sliding rods are slidably connected to each other through a movable plate. The movable plate is in movable contact with the mounting frame. A first locking block is fixedly connected to the side of the movable plate near the mounting frame. The side of the first locking block away from the movable plate passes through the through slot and the first slot in sequence and extends into the first slot.

[0009] Furthermore, the first locking block is movably connected to the through slot, and the first locking block is movably engaged with the first locking slot. A baffle is fixedly connected to the end of the slide rod away from the mounting frame. A handle is movably connected to the top of the movable plate. Two movable rods are fixedly connected to the bottom of the handle. The bottom of the movable rods penetrates the movable plate and extends to the outside of the movable plate.

[0010] Furthermore, the movable rod and the movable plate are movably connected, the bottom of the two movable rods are fixedly connected to the same base plate, the bottom of the base plate is fixedly connected to a second locking block, and the lower front and rear sides of the mounting frame are fixedly connected to support plates, the top of the support plate is provided with a second locking groove.

[0011] Furthermore, the bottom of the second locking block penetrates through the second locking groove and extends into the interior of the second locking groove, and the second locking block and the second locking groove are movably engaged. A spring is sleeved on the surface of the movable rod and located between the movable plate and the bottom plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides reliable protection for the electric actuator by setting up a protective mechanism. The cooperation between the mounting frame and the protective cover, as well as the interaction of components such as the insertion slot, insertion block, and first locking block, allows the protective cover to be stably installed on the mounting frame, avoiding direct impact from external objects on the electric actuator. At the same time, the locking structure composed of components such as the handle, movable rod, and second locking block further enhances the stability of the protective cover installation and facilitates the installation and removal of the protective cover, thereby facilitating the maintenance and repair of the electric actuator.

[0014] 2. By installing a filter screen on the inner wall of the inlet, the mud and sand in the fluid can be effectively filtered, preventing mud and sand from entering the butterfly valve body, reducing wear on the valve plate, valve stem and other components, and extending the service life of the butterfly valve. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the electric actuator and the butterfly valve body of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the protective cover of this utility model;

[0019] Figure 5 This is a schematic diagram of the assembly structure of the mounting block and the support plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the assembly structure of the mounting frame and the movable plate of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the movable plate of this utility model.

[0022] In the diagram: 1. Butterfly valve body; 2. Bracket; 3. Electric actuator; 4. Filter screen; 5. Protection mechanism; 501. Mounting frame; 502. Protective cover; 503. Insertion groove; 504. Insertion block; 505. First slot; 506. Through groove; 507. Slide rod; 508. Movable plate; 509. First locking block; 510. Baffle; 511. Handle; 512. Movable rod; 513. Base plate; 514. Second locking block; 515. Support plate; 516. Second slot; 517. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] Please see Figure 1-7 An improved butterfly valve for preventing mud and sand includes a butterfly valve body 1, a bracket 2 fixedly installed on the top of the butterfly valve body 1, an electric actuator 3 fixedly connected to the top of the bracket 2, a valve stem fixedly connected to the output end of the electric actuator 3, the bottom end of the valve stem passing through the bracket 2 and the butterfly valve body 1 and extending into the interior of the butterfly valve body 1 and fixedly connected to a valve plate, the valve stem being movably connected to the bracket 2 and the butterfly valve body 1, an inlet and a drain are respectively provided on the left and right sides of the butterfly valve body 1, a filter screen 4 is fixedly installed on the inner wall of the inlet, and a protection mechanism 5 for protecting the electric actuator 3 is provided on the top of the butterfly valve body 1.

[0026] The protection mechanism 5 includes a mounting frame 501, a protective cover 502, a plug groove 503, a plug block 504, a first slot 505, a through groove 506, a slide rod 507, a movable plate 508, a first block 509, a baffle 510, a handle 511, a movable rod 512, a base plate 513, a second block 514, a support plate 515, a second slot 516, and a spring 517. The top of the butterfly valve body 1 is fixedly connected to the mounting frame 501, the bracket 2 is located inside the mounting frame 501, the top of the mounting frame 501 is movably connected to the protective cover 502, the electric actuator 3 is located inside the protective cover 502, and plug grooves 503 are provided on both the front and rear sides of the top of the mounting frame 501. The plug block 504 is movably engaged inside the plug groove 503.

[0027] The top of the plug-in block 504 is fixedly connected to the bottom of the protective cover 502. A first slot 505 is provided on the side of the plug-in block 504 away from the bracket. Through slots 506 are provided on both the front and rear sides of the mounting frame 501. The through slots 506 and the plug-in slot 503 are interconnected. Two sliding rods 507 are fixedly connected on both the front and rear sides of the mounting frame 501. The two sliding rods 507 are slidably connected to each other through a movable plate 508. The movable plate 508 is in contact with the mounting frame 501. A first locking block 509 is fixedly connected on the side of the movable plate 508 near the mounting frame 501. The side of the first locking block 509 away from the movable plate 508 passes through the through slot 506 and the first slot 505 in sequence and extends into the interior of the first slot 505. The first locking block 509 is movably connected to the through slot 506.

[0028] The first locking block 509 is movably locked to the first locking slot 505. A baffle 510 is fixedly connected to the end of the slide rod 507 away from the mounting frame 501 to prevent the movable plate 508 from falling off the slide rod 507.

[0029] A handle 511 is movably connected to the top of the movable plate 508. Two movable rods 512 are fixedly connected to the bottom of the handle 511. The bottom of the movable rods 512 passes through the movable plate 508 and extends to the outside of the movable plate 508. The movable rods 512 are movably connected to the movable plate 508. The bottom of the two movable rods 512 is fixedly connected to the same base plate 513. A second locking block 514 is fixedly connected to the bottom of the base plate 513. Support plates 515 are fixedly connected to the lower front and rear sides of the mounting frame 501.

[0030] The support plate 515 has a second slot 516 at the top. The bottom of the second block 514 passes through the second slot 516 and extends into the second slot 516. The second block 514 and the second slot 516 are movably engaged. A spring 517 is sleeved on the surface of the movable rod 512 and located between the movable plate 508 and the base plate 513. The bottom of the spring 517 abuts against the base plate 513, and the top of the spring 517 abuts against the movable plate 508.

[0031] In practical applications: When fluid flows into the butterfly valve body 1 from the inlet, the filter screen 4 filters out the sediment in the fluid. When maintenance or repair of the electric actuator 3 is required, pull the handle 511 upward to disengage the second locking block 514 from the second locking groove 516, while simultaneously squeezing the sleeve spring 517. Then, pull the movable plate 508 away from the mounting frame 501 to disengage the first locking block 509 from the first locking groove 505. Then, pull the protective cover upward to disengage the plug block 504 from the plug groove 503, thereby allowing the protective cover 502 to be removed from the mounting frame 501 for convenient maintenance of the electric actuator 3.

[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved butterfly valve for preventing mud and sand, comprising a butterfly valve body (1), characterized in that: A bracket (2) is fixedly installed on the top of the butterfly valve body (1), and an electric actuator (3) is fixedly connected to the top of the bracket (2). A water inlet and a water outlet are respectively provided on the left and right sides of the butterfly valve body (1). A filter screen (4) is fixedly installed on the inner wall of the water inlet. A protection mechanism (5) for protecting the electric actuator (3) is provided on the top of the butterfly valve body (1).

2. The improved butterfly valve for preventing mud and sand according to claim 1, characterized in that: The protective mechanism (5) includes a mounting frame (501), a protective cover (502), a plug groove (503), a plug block (504), a first slot (505), a through groove (506), a slide rod (507), a movable plate (508), a first locking block (509), a baffle (510), a handle (511), a movable rod (512), a base plate (513), a second locking block (514), a support plate (515), a second slot (516), and a sleeve spring (517). The top of the butterfly valve body (1) is fixedly connected to the mounting frame (501), and the bracket (2) is located inside the mounting frame (501).

3. The improved butterfly valve for preventing mud and sand according to claim 2, characterized in that: The top of the mounting frame (501) is movably connected to a protective cover (502), and the electric actuator (3) is located inside the protective cover (502). The front and rear sides of the top of the mounting frame (501) are provided with insertion slots (503), and insertion blocks (504) are movably engaged inside the insertion slots (503).

4. An improved butterfly valve for preventing mud and sand accumulation according to claim 3, characterized in that: The top of the plug-in block (504) is fixedly connected to the bottom of the protective cover (502). A first slot (505) is provided on the side of the plug-in block (504) away from the bracket. Through slots (506) are provided on both the front and rear sides of the mounting frame (501). The through slots (506) and the plug-in slot (503) are interconnected. Two sliding rods (507) are fixedly connected on both the front and rear sides of the mounting frame (501). The two sliding rods (507) are slidably connected to each other through a movable plate (508). The movable plate (508) is in contact with the mounting frame (501). A first locking block (509) is fixedly connected on the side of the movable plate (508) near the mounting frame (501). The side of the first locking block (509) away from the movable plate (508) passes through the through slot (506) and the first slot (505) in sequence and extends into the interior of the first slot (505).

5. An improved butterfly valve for preventing mud and sand accumulation according to claim 4, characterized in that: The first locking block (509) is movably connected to the through groove (506), and the first locking block (509) is movably engaged with the first locking groove (505). A baffle (510) is fixedly connected to one end of the slide rod (507) away from the mounting frame (501). A handle (511) is movably connected to the top of the movable plate (508). Two movable rods (512) are fixedly connected to the bottom of the handle (511). The bottom of the movable rods (512) passes through the movable plate (508) and extends to the outside of the movable plate (508).

6. An improved butterfly valve for preventing mud and sand accumulation according to claim 5, characterized in that: The movable rod (512) is movably connected to the movable plate (508). The bottom of the two movable rods (512) is fixedly connected to the same base plate (513). The bottom of the base plate (513) is fixedly connected to a second locking block (514). The mounting frame (501) is fixedly connected to support plates (515) on both the front and rear sides. The support plate (515) has a second locking groove (516) on its top.

7. An improved butterfly valve for preventing mud and sand accumulation according to claim 6, characterized in that: The bottom of the second locking block (514) passes through the second locking groove (516) and extends into the interior of the second locking groove (516). The second locking block (514) and the second locking groove (516) are movably engaged. A spring (517) is sleeved on the surface of the movable rod (512) and located between the movable plate (508) and the bottom plate (513).

Images