Electric rectangular blind plate valve

Abstract

The utility model belongs to the technical field of blind plate valves, and relates to an electric rectangular blind plate valve which comprises a valve body seat, a fixed valve body, a movable valve body and a valve plate, a sealing ring is arranged on the valve plate, the fixed valve body comprises a front fixed valve body and a rear fixed valve body, the opposite sides of the front fixed valve body and the rear fixed valve body are movably connected with the movable valve body, and the movable valve body is connected with the valve plate. The movable valve body is connected with the front fixed valve body through a fastening assembly; a movable cross beam is arranged at the top of the rear fixed valve body, a sliding rail and a walking plate motor matched with the sliding rail are arranged on the movable cross beam, and the top of the valve plate is movably connected with the movable cross beam through a connecting piece; the outer frame of the valve plate and the inner through hole are both rectangular. The through hole of the valve plate is designed into the rectangular through hole matched with the pipeline, so that the problem of adaptive installation of the rectangular pipeline is solved, and the problem of insufficient flow of the rectangular pipeline is also solved.

Description

Technical Field

[0001] This utility model belongs to the field of blind valve technology and relates to an electric rectangular blind valve. Background Technology

[0002] A blind valve is a gate valve that shuts off gaseous media using manual, electric, pneumatic, or hydraulic methods. It is generally classified into electric blind valves, hydraulic blind valves, pneumatic blind valves, closed blind valves, and electric open blind valves. Currently, most blind valves on the market have circular channels and are not suitable for rectangular pipelines.

[0003] A Chinese utility model patent with publication number CN212718085U discloses an open-type electric slide gate valve, comprising a valve body, a valve cavity formed on the side of the valve body, a rectangular through groove formed on the right side of the valve cavity, a first guide groove formed at the bottom of the rectangular through groove, a valve plate disposed inside the rectangular through groove, sealing baffles fixedly connected to the front and rear sides of the valve plate, a guide slide bar fixedly connected to the bottom of the valve plate, an opening groove formed on the top of the valve body, a second guide groove formed at the bottom of the opening groove, a power rack fixedly connected to the top of the valve plate and inside the second guide groove, limit blocks fixedly connected to the top of the power rack and near both ends, a drive device fixedly connected to the inner side of the opening groove, a fixed support block fixedly connected to the inner side of the opening groove and to the right of the drive device, a rotating shaft movably connected to the side of the fixed support block via a bearing, a pin gear fixedly connected to the right end of the rotating shaft, and the left end of the rotating shaft fixedly connected to the output end of the drive device via a coupling.

[0004] The existing technology has the following technical defects:

[0005] Although the above technical solution uses a rectangular through groove, its valve plate channel is still circular. When a rectangular pipe is used for connection, insufficient flow may occur. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an electric rectangular blind valve.

[0007] The electric rectangular blind valve of this utility model includes a valve body seat, a fixed valve body, a movable valve body and a valve plate. The valve plate is provided with a sealing ring. The fixed valve body has a front fixed valve body and a rear fixed valve body. The movable valve body is movably connected to the opposite side of the front fixed valve body and the rear fixed valve body. The movable valve body and the front fixed valve body are connected by a fastening component.

[0008] The top of the rear fixed valve body is provided with a movable crossbeam, and the movable crossbeam is provided with a slide rail and a matching slide plate motor. The top of the valve plate is movably connected to the movable crossbeam through a connector.

[0009] The outer frame and inner through hole of the valve plate are both rectangular.

[0010] The fastening assembly includes a clamping screw, the middle of which is connected to the front fixed valve body via a threaded sleeve. One end of the clamping screw is connected to the movable valve body, and the other end of the clamping screw is fixedly connected to a rocker arm. The rocker arm is connected to a clamping motor via a connecting rod. The clamping motor drives the connecting rod to move, and the rocker arm and connecting rod are fixedly connected to drive the rocker arm to rotate, thereby driving the clamping screw fixedly connected to the rocker arm to rotate, thus realizing the forward and backward movement of the movable valve body.

[0011] The clamping screws are evenly arranged in fifteen positions, each with a rocker arm. The rocker arms are connected by a connecting rod. By using the evenly arranged multiple clamping screws, multi-point synchronous action can be achieved, thereby realizing multi-point clamping.

[0012] The rocker arm on the same side is connected to the same connecting rod, and the rocker arm at the junction of the two sides is triangular, which can simultaneously hinge the connecting rods on both sides, so that the clamping motor can move the rod in both directions in both directions, thereby realizing the forward and reverse movement of the movable valve body.

[0013] The clamping motor is also equipped with a hand crank, which allows for both manual and electric control.

[0014] A bellows compensator is connected between the fixed valve body and the movable valve body, which can compensate for the displacement of the movable valve body.

[0015] The movable valve body is equipped with a top lever frame at both the upper and lower ends. The top lever frame is equipped with a top rod and a lever that are adapted to the valve plate. Rollers are provided on the top rod and the lever. When the movable valve body moves back and forth, the valve plate is tightened and fixed by the top rod or the lever, or the valve body is pulled out and fixed, which facilitates the removal of the valve plate. The rollers on it avoid friction.

[0016] The bottom top wheel frame is provided with a support plate, and the valve body seat is provided with a support wheel frame corresponding to the support plate. The support wheel frame supports the support plate, thereby supporting the movable valve body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention designs the through hole of the valve plate as a rectangular through hole that matches the pipe, which solves both the problem of adapting and installing rectangular pipes and the problem of insufficient flow in rectangular pipes. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of the present invention.

[0020] Figure 2This is a side view of an embodiment of the present invention.

[0021] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the image.

[0022] Figure 4 This is a utility model Figure 2 Enlarged view of point B in the image.

[0023] In the diagram: 1. Moving crossbeam; 2. Slide rail; 3. Connecting rod; 4. Rocker arm; 5. Clamping screw; 6. Hand crank; 7. Clamping motor; 8. Tracking motor; 9. Connecting component; 10. Valve plate; 11. Sealing ring; 12. Rear fixed valve body; 13. Movable valve body; 14. Bellows compensator; 15. Front fixed valve body; 16. Support wheel frame; 17. Top lever wheel frame; 18. Top rod; 19. Lever; 20. Valve body seat; 21. Support plate. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-4As shown, the electric rectangular blind valve of this utility model includes a valve body seat 20, a fixed valve body, a movable valve body 13, and a valve plate 10. A sealing ring 11 is provided on the valve plate 10. The fixed valve body consists of a front fixed valve body 15 and a rear fixed valve body 12. The movable valve body 13 is movably connected to the opposite side of the front fixed valve body 15 and the rear fixed valve body 12. The movable valve body 13 is connected to the front fixed valve body 15 by a fastening assembly. A movable crossbeam 1 is provided on the top of the rear fixed valve body 12. A slide rail 2 and a matching sliding motor 8 are provided on the movable crossbeam 1. The top of the valve plate 10 is connected to the valve body 10 via a connecting piece 9. The movable crossbeam 1 is movably connected; the outer frame and inner through hole of the valve plate 10 are both rectangular; the fastening assembly includes a clamping screw 5, the middle of which is connected to the front fixed valve body 15 via a threaded sleeve, one end of which is connected to the movable valve body 13, and the other end of which is fixedly connected to a rocker arm 4. The rocker arm 4 is connected to a clamping motor 7 via a connecting rod 3. The clamping motor 7 drives the connecting rod 3 to move, and the rocker arm 4 and the connecting rod 3 are fixedly connected to drive the rocker arm 4 to rotate, thereby driving the clamping screw 5 fixedly connected to the rocker arm 4 to rotate, thus realizing the forward and backward movement of the movable valve body 13; Fifteen clamping screws 5 are evenly arranged, each with a rocker arm 4. All rocker arms 4 are connected by a connecting rod 3. The evenly arranged multiple clamping screws 5 enable multi-point synchronous action, thus achieving multi-point clamping. The clamping motor 7 is also equipped with a handwheel 6, allowing for both manual and electric control. A bellows compensator 14 connects the front fixed valve body 15 and the movable valve body 13, compensating for the displacement of the movable valve body 13. Top lever frames 17 are provided at both the upper and lower ends of the movable valve body 13, and each top lever frame 17 is equipped with... There are push rods 18 and levers 19 adapted to the valve plate 10. Both push rods 18 and levers 19 are equipped with rollers. When the movable valve body 13 moves back and forth, the push rods 18 or levers 19 can tighten the valve plate 10 and fix the valve body 12 or pull it out and fix the valve body 12, which facilitates the removal of the valve plate 10 and avoids friction on the rollers. The bottom push wheel frame 17 is equipped with a support plate 21. The valve body seat 20 is equipped with a support wheel frame 16 corresponding to the support plate 21. The support wheel frame 16 supports the support plate 21, thereby supporting the movable valve body 13.

[0026] Working process or working principle:

[0027] In use, the clamping motor 7 or the hand crank 6 drives the connecting rod 3 to move, and the rocker arm 4 rotates accordingly, thereby driving the clamping screw 5 to rotate, realizing the movement of the movable valve body 13. When the movable valve body 13 moves, the lever 19 drives the valve plate 10 to separate from the rear fixed valve body 12. Then, the plate-moving motor 8 is started, and the valve plate 10 is driven to move on the slide rail 2 through the sprocket. Similarly, after the plate-moving motor 8 drives the valve plate 10 back between the movable valve body 13 and the rear fixed valve body 12, the clamping motor 7 reverses to drive the rocker arm 4 and the clamping screw 5 to rotate, thereby driving the movable valve body 13 to move closer to the valve plate 10. At the same time, during the movement, the push rod 18 pushes the valve plate 10 to move towards the rear fixed valve body 12 and clamps it.

[0028] This invention designs the through hole of the valve plate 10 as a rectangular through hole that matches the pipeline, which solves both the problem of adapting and installing rectangular pipelines and the problem of insufficient flow in rectangular pipelines.

[0029] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. An electrically operated rectangular blind valve, comprising a valve body seat (20), a fixed valve body, a movable valve body (13), and a valve plate (10), wherein a sealing ring (11) is provided on the valve plate (10), characterized in that: The fixed valve body consists of a front fixed valve body (15) and a rear fixed valve body (12). A movable valve body (13) is movably connected to the opposite side of the front fixed valve body (15) and the rear fixed valve body (12). The movable valve body (13) is connected to the front fixed valve body (15) by a fastening assembly. The rear fixed valve body (12) is provided with a movable crossbeam (1) at the top. The movable crossbeam (1) is provided with a slide rail (2) and a matching sliding plate motor (8). The top of the valve plate (10) is movably connected to the movable crossbeam (1) through a connector (9). The outer frame and inner through hole of the valve plate (10) are both rectangular.

2. The electrically operated rectangular blind valve according to claim 1, characterized in that: The fastening assembly includes a clamping screw (5), the middle of which is connected to the front fixed valve body (15) through a threaded sleeve. One end of the clamping screw (5) is connected to the movable valve body (13), and the other end of the clamping screw (5) is fixedly connected to a rocker arm (4). The rocker arm (4) is connected to a clamping motor (7) through a connecting rod (3).

3. The electrically operated rectangular blind valve according to claim 2, characterized in that: The clamping screws (5) are evenly arranged in fifteen positions, and each clamping screw (5) is equipped with a rocker arm (4), and each rocker arm (4) is connected by a connecting rod (3).

4. The electrically operated rectangular blind valve according to claim 3, characterized in that: The clamping motor (7) is also equipped with a hand crank (6).

5. The electrically operated rectangular blind valve according to any one of claims 1-4, characterized in that: A bellows compensator (14) is connected between the front fixed valve body (15) and the movable valve body (13).

6. The electrically operated rectangular blind valve according to claim 5, characterized in that: The movable valve body (13) is provided with a top lever frame (17) at both the upper and lower ends. The top lever frame (17) is provided with a top rod (18) and a lever (19) that are compatible with the valve plate (10). Rollers are provided on the top rod (18) and the lever (19).

7. The electrically operated rectangular blind valve according to claim 6, characterized in that: The bottom top wheel frame (17) is provided with a support plate (21), and the valve body seat (20) is provided with a support wheel frame (16) corresponding to the support plate (21).

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