Flow-adjustable electric stop valve

Abstract

The utility model relates to the technical field of stop valves, and particularly discloses a flow-adjustable electric stop valve which comprises a valve body, a channel is arranged in the valve body, a valve clack is connected in the valve body in a sliding mode, a valve rod is connected to the top of the valve clack, a shell is fixedly connected to the valve body, and a valve rod is arranged in the shell. An electric driving part for driving the valve rod to rotate is arranged on the shell, a sliding column is fixedly connected to the top of the valve clack, a sliding hole is formed in the valve rod, the sliding column is connected into the sliding hole in a sliding mode, the sliding column is fixedly connected with the valve rod, and a spring is connected between the sliding column and the sliding hole; a limiting part for limiting the sliding of the sliding column is arranged outside the valve rod; through the arranged valve clack, connection and disconnection of the interior of the valve body can be achieved, through the arrangement of the sliding column and the spring, the valve clack can be pushed to move upwards under the pushing of the pressure of fluid, the valve clack abuts against the spring through the sliding column, and when the pressure of fluid impact becomes small, the valve clack can be sealed on the channel again under the pushing of the elastic force of the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of electric stop valves, in particular to an electric stop valve with adjustable flow. Background Art

[0002] The globe valve is the most widely used valve. Due to its low friction between the sealing surfaces during opening and closing, it is durable, has a low opening height, is easy to manufacture, and is convenient to maintain. It is suitable for both low- and medium-pressure environments and high-pressure environments. The closing principle of a globe valve is that stem pressure forces the disc sealing surface to tightly fit the seat sealing surface, preventing the flow of media.

[0003] In the prior art, a Chinese patent with announcement number CN204493740U discloses a double-valve-flap stop valve, which belongs to the field of valve technology and aims to provide a stop valve with good sealing performance. Its technical solution is as follows: a double-valve-flap stop valve, comprising a valve body, a valve stem, a handwheel, a valve cover, a valve seat and a valve flap, the valve body comprising an inlet channel and an outlet channel, the valve flap comprising a first valve flap and a second valve flap, the first valve flap being fixedly connected to one end of the valve stem and arranged below the valve seat, the second valve flap being threadedly connected to the valve stem and located above the valve seat, and the valve body being provided with a limiting mechanism for limiting the axial rotation of the second valve flap.

[0004] In this patent, the valve flap cannot adaptively adjust the release flow according to the fluid pressure, and the valve flap needs to be manually opened to achieve fluid transmission. Utility Model Content

[0005] In view of the technical problem in the prior art that the valve flap in the stop valve cannot adaptively adjust the release flow according to the fluid pressure and the valve flap needs to be opened manually to realize the transmission of the fluid, the utility model provides an electric stop valve with adjustable flow.

[0006] The technical solution adopted by the present utility model is an electric stop valve with adjustable flow, comprising a valve body, a channel provided in the valve body, a valve disc slidably connected to the valve body, a valve stem connected to the top of the valve disc, and characterized in that the valve body is fixedly connected to a shell, the shell is provided with an electric drive component for driving the valve stem to rotate, a sliding column is fixedly connected to the top of the valve disc, a sliding hole is provided in the valve stem, a sliding rod is slidably connected in the sliding hole, the sliding column is fixedly connected to the sliding rod, a spring is connected between the sliding column and the sliding hole, and a limiting component for limiting the sliding of the sliding column is provided on the outside of the valve stem.

[0007] The utility model is further configured such that a sliding groove is provided on the outside of the valve stem, a slider is fixedly connected to the valve body, and the slider is slidably connected to the sliding groove.

[0008] The utility model is further configured such that a bearing is fixedly connected inside the shell, a rotating sleeve is rotatably mounted on the shell through the bearing, a rotating rod is fixedly connected to the top of the rotating sleeve, and the inner wall of the rotating sleeve and the outside of the valve stem are both provided with threads.

[0009] The present invention is further configured such that the electric drive component is a motor fixedly connected to the top of the housing, and the output end of the motor is fixedly connected to the rotating rod.

[0010] The present invention is further configured such that a slide plate is fixedly connected to the top of the slide rod, and the limiting component is a first limiting screw threadedly connected to the valve stem, and the first limiting screw abuts against the top of the slide plate.

[0011] The present invention is further configured such that a second limiting screw is connected through a thread in the first limiting screw, and the second limiting screw and the first limiting screw form a T-shaped structure.

[0012] The utility model is further configured such that a sealing filler is provided at a position corresponding to the valve stem in the valve body.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the present invention, the valve disc is provided to realize the on-off control of the valve body. Through the setting of the slide column and the spring, the valve disc can be pushed upward under the pressure of the fluid, and the valve disc resists the spring through the slide column. When the pressure of the fluid impact becomes smaller, the valve disc can be sealed on the channel again under the elastic force of the spring. Through the setting of the limiting component, when the operating limiting component restricts the slide column, the position of the valve disc can be resisted. At this time, the operating valve stem drives the valve disc to resist the channel to achieve comprehensive sealing.

[0015] 2. In the utility model, the first limiting screw passes through the valve stem, and the first limiting screw abuts against the top of the slide, so that the slide rod and the slide cannot move upward, thereby locking the position of the valve disc. In order to increase stability, a second limiting screw is threadedly connected to the first limiting screw. The second limiting screw and the first limiting screw form a T-shaped structure, and the two realize an anti-slip structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4This is a schematic diagram of the cross-sectional structure of the housing in the present utility model;

[0020] Figure 5 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding rod in the utility model.

[0022] The following are marked in the figure:

[0023] 1. Valve body; 2. Motor; 3. Rotating sleeve; 4. Bearing; 5. Rotating rod; 6. Valve stem; 7. Housing; 8. Sliding hole; 9. First limiting screw; 10. Second limiting screw; 11. Sliding rod; 12. Sealing packing; 13. Slide plate; 14. Channel; 15. Slide groove; 16. Slider; 17. Sliding column; 18. Spring; 19. Valve disc; 20. Thread. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] The following is combined with Figure 1-6 The utility model is further described.

[0026] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a flow-adjustable electric stop valve, comprising a valve body 1, a channel 14 being provided in the valve body 1, a valve flap 19 being slidably connected in the valve body 1, and a valve stem 6 being connected to the top of the valve flap 19. In order to seal the valve stem 6, a sealing packing 12 is provided in the position corresponding to the valve stem 6 in the valve body 1.

[0027] In order to facilitate driving the valve stem 6, a shell 7 is fixedly connected to the valve body 1, and an electric driving component for driving the valve stem 6 to rotate is provided on the shell 7. A bearing 4 is fixedly connected to the shell 7, and a rotating sleeve 3 is rotatably installed on the shell 7 through the bearing 4. The top of the rotating sleeve 3 is fixedly connected to the rotating rod 5. The inner wall of the rotating sleeve 3 and the outside of the valve stem 6 are provided with threads 20, and the two are threadedly connected. The electric driving component is a motor 2 fixedly connected to the top of the shell 7, and the output end of the motor 2 is fixedly connected to the rotating rod 5. The motor 2 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the rotating sleeve 3 to rotate in the shell 7.

[0028] In order to achieve adaptive adjustment of the valve disc 19, a sliding column 17 is fixedly connected to the top of the valve disc 19, a sliding hole 8 is provided in the valve stem 6, and a sliding rod 11 is slidably connected in the sliding hole 8. The sliding column 17 is fixedly connected to the sliding rod 11, and a spring 18 is connected between the sliding column 17 and the sliding hole 8. Under the pressure of the fluid, the valve disc 19 is pushed upward, and the valve disc 19 resists the spring 18 through the sliding column 17. When the pressure of the fluid impact becomes smaller, the valve disc 19 can be sealed on the channel 14 again under the elastic force of the spring 18.

[0029] In order to guide the movement of the valve stem 6 , a sliding groove 15 is provided on the outside of the valve stem 6 , and a slider 16 is fixedly connected to the valve body 1 , and the slider 16 is slidably connected to the sliding groove 15 .

[0030] In addition, in order to achieve normal sealing of the valve disc 19 , a limiting component is provided on the outside of the valve stem 6 to limit the sliding of the sliding column 17 .

[0031] The top of the slide rod 11 is fixedly connected to the slide plate 13, and the limiting component is the first limiting screw 9 threadedly connected to the valve stem 6. The first limiting screw 9 abuts against the top of the slide plate 13. The first limiting screw 9 passes through the valve stem 6, and the first limiting screw 9 abuts against the top of the slide plate 13, so that the slide rod 11 and the slide plate 13 cannot move upward, thereby locking the position of the valve disc 19. In order to increase stability, a second limiting screw 10 is also threadedly connected to the first limiting screw 9. The second limiting screw 10 and the first limiting screw 9 form a T-shaped structure, and the two realize an anti-slip structure.

[0032] The usage process of this embodiment is as follows:

[0033] Install the valve body 1 on the pipeline, start the motor 2 to drive the rotating rod 5 and the rotating sleeve 3 to rotate. Through the threaded connection between the rotating sleeve 3 and the valve stem 6, when the rotating sleeve 3 rotates, it will drive the valve stem 6 to move up or down. Through the cooperation of the slider 16 and the slide groove 15, the valve stem 6 and the guide can slide;

[0034] When the valve stem 6 drives the valve disc 19 to seal the channel 14, the valve body 1 can be closed. When the valve stem 6 drives the valve disc 19 to move upward and separate from the channel 14, the valve body 1 can be opened.

[0035] If it is necessary to automatically adjust the discharge according to the size of the flow rate, it is only necessary to start the motor 2 to drive the rotating sleeve 3 to rotate, and let the valve stem 6 drive the valve disc 19 to contact the top of the channel 14. Then, the second limit screw 10 and the first limit screw 9 are removed to release the restriction on the slide 13. Subsequently, the valve disc 19 can be pushed upward under the pressure of the fluid, and the valve disc 19 contacts the spring 18 through the slide column 17. When the pressure of the fluid impact becomes smaller, the valve disc 19 can be pushed by the elastic force of the spring 18 to seal the channel 14 again.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0037] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electric stop valve with adjustable flow, comprising a valve body (1), wherein a channel (14) is provided in the valve body (1), a valve disc (19) is slidably connected to the valve body (1), and a valve stem (6) is connected to the top of the valve disc (19), characterized in that: The valve body (1) is fixedly connected to a housing (7), the housing (7) is provided with an electric drive component for driving the valve stem (6) to rotate, the top of the valve flap (19) is fixedly connected to a sliding column (17), a sliding hole (8) is provided in the valve stem (6), a sliding rod (11) is slidably connected in the sliding hole (8), the sliding column (17) is fixedly connected to the sliding rod (11), a spring (18) is connected between the sliding column (17) and the sliding hole (8), and a limiting component for limiting the sliding of the sliding column (17) is provided on the outside of the valve stem (6).

2. The flow-adjustable electric stop valve according to claim 1, characterized in that: A sliding groove (15) is provided on the outside of the valve stem (6), and a slider (16) is fixedly connected to the inside of the valve body (1), and the slider (16) is slidably connected to the sliding groove (15).

3. The flow-adjustable electric stop valve according to claim 1, characterized in that: A bearing (4) is fixedly connected to the inner portion of the housing (7), a rotating sleeve (3) is rotatably mounted on the housing (7) via the bearing (4), a rotating rod (5) is fixedly connected to the top of the rotating sleeve (3), and threads (20) are provided on the inner wall of the rotating sleeve (3) and the outer portion of the valve stem (6).

4. The flow-adjustable electric stop valve according to any one of claims 1 to 3, characterized in that: The electric drive component is a motor (2) fixedly connected to the top of the housing (7), and the output end of the motor (2) is fixedly connected to the rotating rod (5).

5. The flow-adjustable electric stop valve according to claim 4, characterized in that: The top of the slide rod (11) is fixedly connected to a slide plate (13), and the limiting component is a first limiting screw (9) threadedly connected to the valve stem (6), and the first limiting screw (9) abuts against the top of the slide plate (13).

6. The flow-adjustable electric stop valve according to claim 5, characterized in that: The first limiting screw (9) is threadedly connected to a second limiting screw (10), and the second limiting screw (10) and the first limiting screw (9) form a T-shaped structure.

7. The flow-adjustable electric stop valve according to claim 1, characterized in that: A sealing filler (12) is provided at a position corresponding to the valve stem (6) in the valve body (1).

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