An automatic energy storage electric stop valve

Abstract

The utility model discloses an automatic energy storage type electric stop valve, comprising a valve body and an energy storage mechanism; a valve plate is arranged inside the valve body, a trapezoidal through hole 1 is opened in the middle of the valve plate, connecting flanges are arranged on both sides of the valve body, a valve cover is connected to the upper end of the valve body by bolts, the middle of the lower surface of the valve cover is plugged into the inside of the valve body, and a trapezoidal through hole 2 is arranged in the middle of the valve cover; the energy storage mechanism comprises a valve stem and a spring, the valve stem is slidably connected to the inside of the lower end of the trapezoidal through hole 2, a plugging plate at the lower end of the valve stem is plugged into the upper end of the inside of the trapezoidal through hole 1, a spring is fixedly connected between the valve cover and the plugging plate, and the spring is sleeved on the outside of the lower end of the valve stem; the energy storage mechanism also comprises a sealing assembly, a retaining ring and a sliding seat, and the retaining ring is threadedly connected to the upper end of the valve stem. The automatic energy storage type electric stop valve keeps the internal pressure of the device pipeline stable through the automatic energy storage mechanism inside the electric stop valve, thereby reducing the occurrence of failures.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to an automatic energy storage type electric stop valve. Background Art

[0002] The electric stop valve consists of two parts: an electric actuator or a pneumatic actuator and a stop valve. The difference is that its closing part is a valve body, which rotates around the center line of the valve body to achieve opening and closing. The gate valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium.

[0003] When the device is running, the internal pressure of the pipeline will be toggled. The existing electric stop valve is insensitive to the pressure toggle when in use, so that the internal pressure of the pipeline cannot be released, which may cause the device to fail to operate normally. To this end, an automatic energy storage electric stop valve is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an automatic energy storage electric stop valve. Through the automatic energy storage mechanism inside the electric stop valve, the internal pressure of the device pipeline is kept stable, the occurrence of faults is reduced, and the problems in the background technology can be effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic energy storage electric stop valve, comprising a valve body and an energy storage mechanism;

[0006] A valve plate is provided inside the valve body, a trapezoidal through hole 1 is opened in the middle of the valve plate, connecting flanges are provided on both the left and right sides of the valve body, a valve cover is connected to the upper end of the valve body by bolts, the middle of the lower surface of the valve cover is inserted into the inside of the valve body, and a trapezoidal through hole 2 is provided in the middle of the valve cover;

[0007] The energy storage mechanism includes a valve stem and a spring. The valve stem is slidably connected to the interior of the lower end of the trapezoidal through hole 2. The blocking plate at the lower end of the valve stem is inserted into the upper end of the interior of the trapezoidal through hole 1. A spring is fixedly connected between the valve cover and the blocking plate. The spring is sleeved on the outside of the lower end of the valve stem. Through the automatic energy storage mechanism inside the electric stop valve, the internal pressure of the device pipeline is kept stable to reduce the occurrence of faults.

[0008] Furthermore, the energy storage mechanism also includes a sealing assembly, a retaining ring and a sliding seat, the retaining ring is threadedly connected to the upper end of the valve stem, the upper surface of the valve cover is provided with a mounting seat, the upper end of the mounting seat is slidably connected to a connecting rod, the lower end of the connecting rod is connected to the sliding seat by bolts, the retaining ring is located inside the sliding seat, the interior of the valve cover is provided with a sealing assembly, the upper end of the valve stem is slidably connected to the interior of the sealing assembly, so as to realize the opening and closing of the blocking plate.

[0009] Furthermore, the sealing assembly includes a fluoroplastic ring, which is placed at the upper end of the interior of the second trapezoidal through hole, and the upper end of the valve stem is slidably connected to the interior of the fluoroplastic ring to avoid leakage at the second trapezoidal through hole.

[0010] Furthermore, the sealing assembly also includes a rubber ring and a clamping nut. The outer sleeve of the fluoroplastic ring is provided with a rubber ring, the upper surface of the rubber ring is higher than the upper surface of the fluoroplastic ring, the inner upper end of the trapezoidal through hole 2 is threadedly connected with a clamping nut, and the lower surface of the clamping nut contacts the lower surface of the rubber ring to prevent the fluoroplastic ring from falling off.

[0011] Furthermore, an electric push rod is fixedly connected to the upper end of the mounting seat, the telescopic end of the electric push rod is fixedly connected to the upper end of the connecting rod, and the input end of the electric push rod is electrically connected to the output end of the control system of the external device to pull the valve stem.

[0012] Furthermore, a sealing ring is provided at the lower end of the valve cover, and the sealing ring is a fluoroether rubber sealing ring, and the surface of the sealing ring contacts the inner wall of the upper end of the valve body to avoid leakage at the valve cover position.

[0013] Furthermore, an annular groove is provided at the upper end of the trapezoidal through hole 1, a sealing gasket is placed inside the annular groove, and the upper surface of the sealing gasket contacts the lower surface of the blocking plate to prevent leakage at the blocking plate position.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the internal pressure of the pipeline is too high, the fluid medium pushes the plugging plate upward and the spring contracts. At this time, the fluid pressure is greater than the elastic potential energy of the spring. The fluid medium circulates, and the fluid pressure is released and gradually decreases. The fluid pressure gradually decreases to less than the elastic potential energy of the spring. The spring recovers, the plugging plate is pressed down, and the trapezoidal through hole is closed. The upper surface of the sealing gasket contacts the lower surface of the plugging plate to avoid leakage at the plugging plate position, so that the internal pressure of the device pipeline remains stable and the occurrence of failures is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0019] In the figure: 1 valve body, 2 energy storage mechanism, 21 valve stem, 22 spring, 23 sealing assembly, 231 fluoroplastic ring, 232 rubber ring, 233 clamping nut, 24 retaining ring, 25 sliding seat, 3 valve plate, 4 trapezoidal through hole 1, 5 connecting flange, 6 sealing gasket, 7 sealing ring, 8 valve cover, 9 connecting rod, 10 mounting seat, 11 electric push rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , this embodiment provides an automatic energy storage electric stop valve, including a valve body 1 and an energy storage mechanism 2;

[0022] Among them, a valve plate 3 is provided inside the valve body 1, a trapezoidal through hole 1 4 is provided in the middle of the valve plate 3, connecting flanges 5 are provided on both the left and right sides of the valve body 1, a valve cover 8 is connected to the upper end of the valve body 1 by bolts, the middle of the lower surface of the valve cover 8 is plugged into the inside of the valve body 1, a trapezoidal through hole 2 is provided in the middle of the valve cover 8, a sealing ring 7 is sleeved on the lower end of the valve cover 8, the sealing ring 7 is a fluoroether rubber sealing ring, and the surface of the sealing ring 7 contacts the inner wall of the upper end of the valve body 1;

[0023] The energy storage mechanism 2 includes a valve stem 21 and a spring 22. The valve stem 21 is slidably connected to the interior of the lower end of the trapezoidal through hole 2. The plugging plate at the lower end of the valve stem 21 is plugged into the upper end of the interior of the trapezoidal through hole 1 4. The spring 22 is fixedly connected between the valve cover 8 and the plugging plate. The spring 22 is sleeved on the outside of the lower end of the valve stem 21. The energy storage mechanism 2 also includes a sealing assembly 23, a retaining ring 24 and a sliding seat 25. The retaining ring 24 is threadedly connected to the upper end of the valve stem 21.

[0024] The upper surface of the valve cover 8 is provided with a mounting seat 10, the upper end of the mounting seat 10 is slidably connected with a connecting rod 9, the lower end of the connecting rod 9 is connected with a sliding seat 25 through bolts, and the retaining ring 24 is located inside the sliding seat 25;

[0025] The valve cover 8 is provided with a sealing assembly 23 inside, the upper end of the valve stem 21 is slidably connected to the inside of the sealing assembly 23, the sealing assembly 23 includes a fluoroplastic ring 231, the fluoroplastic ring 231 is placed at the upper end of the inside of the trapezoidal through hole 2, and the upper end of the valve stem 21 is slidably connected to the inside of the fluoroplastic ring 231; the sealing assembly 23 also includes a rubber ring 232 and a clamping nut 233, the outer sleeve of the fluoroplastic ring 231 is provided with a rubber ring 232, the upper surface of the rubber ring 232 is higher than the upper surface of the fluoroplastic ring 231, the upper end of the inside of the trapezoidal through hole 2 is threadedly connected with the clamping nut 233, and the lower surface of the clamping nut 233 is in contact with the lower surface of the rubber ring 232;

[0026] Among them, the upper end of the mounting seat 10 is fixedly connected to an electric push rod 11, the telescopic end of the electric push rod 11 is fixedly connected to the upper end of the connecting rod 9, the input end of the electric push rod 11 is electrically connected to the output end of the control system of the external device, and an annular groove is opened at the upper end of the trapezoidal through hole 14, and a sealing gasket 6 is placed inside the annular groove, and the upper surface of the sealing gasket 6 is in contact with the lower surface of the blocking plate.

[0027] The working principle of the utility model is as follows:

[0028] The automatic energy storage electric stop valve is installed inside the external device through the connecting flanges 5 on both sides. The fluid medium enters from the right side of the valve body 1 and flows out from the left side of the valve body 1. The sealing ring 7 prevents leakage at the valve cover 8. The plugging plate at the lower end of the valve stem 21 is plugged into the upper end of the trapezoidal through hole 1 4 to achieve the blocking of the fluid medium.

[0029] When the medium needs to flow, the control system of the external device controls the telescopic end of the electric push rod 11 to retract, the connecting rod 9 moves up, the sliding seat 25 moves up, drives the retaining ring 24 to move up, the valve stem 21 slides upward, the clamping nut 233 presses the rubber ring 232, the rubber ring 232 presses down the fluoroplastic ring 231, the fluoroplastic ring 231 prevents leakage at the second trapezoidal through hole, the blocking plate leaves the trapezoidal through hole 14, the trapezoidal through hole 14 opens, and the fluid medium flows;

[0030] When the pressure inside the pipeline is too high, the fluid medium pushes the plugging plate upward, and the spring 22 contracts. At this time, the fluid pressure is greater than the elastic potential energy of the spring 22, and the fluid medium circulates. The fluid pressure is released and gradually decreases. The fluid pressure gradually decreases to less than the elastic potential energy of the spring 22, and the spring 22 recovers, the plugging plate is pressed down, the trapezoidal through hole 14 is closed, and the upper surface of the sealing gasket 6 contacts the lower surface of the plugging plate to prevent leakage at the plugging plate position;

[0031] The stroke of the electric push rod 11 is greater than the maximum compression of the spring 22 when the device is running, which realizes automatic energy storage and facilitates the electric control of the closing of the shut-off valve. The automatic energy storage mechanism inside the electric shut-off valve keeps the internal pressure of the device pipeline stable, reducing the occurrence of faults.

[0032] It is worth noting that the electric push rod 11 disclosed in the above embodiment can be an ALI2-P electric push rod, and the control switch group controls the operation of the electric push rod 11 using a method commonly used in the prior art.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic energy storage electric stop valve, characterized in that: It comprises a valve body (1) and an energy storage mechanism (2); The valve body (1) is provided with a valve plate (3) inside, a trapezoidal through hole (4) is provided in the middle of the valve plate (3), connecting flanges (5) are provided on both the left and right sides of the valve body (1), the upper end of the valve body (1) is connected to a valve cover (8) by bolts, the middle of the lower surface of the valve cover (8) is inserted into the inside of the valve body (1), and a trapezoidal through hole (2) is provided in the middle of the valve cover (8); The energy storage mechanism (2) comprises a valve stem (21) and a spring (22); the valve stem (21) is slidably connected to the interior of the lower end of the trapezoidal through hole 2; a plugging plate at the lower end of the valve stem (21) is plugged into the upper end of the interior of the trapezoidal through hole 1 (4); a spring (22) is fixedly connected between the valve cover (8) and the plugging plate; and the spring (22) is sleeved on the outside of the lower end of the valve stem (21).

2. The automatic energy storage electric stop valve according to claim 1, characterized in that: The energy storage mechanism (2) further comprises a sealing assembly (23), a retaining ring (24) and a sliding seat (25); the retaining ring (24) is threadedly connected to the upper end of the valve stem (21); a mounting seat (10) is provided on the upper surface of the valve cover (8); the upper end of the mounting seat (10) is slidably connected to a connecting rod (9); the lower end of the connecting rod (9) is bolted to the sliding seat (25); the retaining ring (24) is located inside the sliding seat (25); a sealing assembly (23) is provided inside the valve cover (8); and the upper end of the valve stem (21) is slidably connected to the inside of the sealing assembly (23).

3. The automatic energy storage electric stop valve according to claim 2, characterized in that: The sealing component (23) comprises a fluoroplastic ring (231), which is placed at the upper end of the interior of the second trapezoidal through hole, and the upper end of the valve stem (21) is slidably connected to the interior of the fluoroplastic ring (231).

4. The automatic energy storage electric stop valve according to claim 3, characterized in that: The sealing assembly (23) further comprises a rubber ring (232) and a clamping nut (233); the outer sleeve of the fluoroplastic ring (231) is provided with the rubber ring (232); the upper surface of the rubber ring (232) is higher than the upper surface of the fluoroplastic ring (231); the inner upper end of the second trapezoidal through hole is threadedly connected with the clamping nut (233); the lower surface of the clamping nut (233) contacts the lower surface of the rubber ring (232).

5. The automatic energy storage electric stop valve according to claim 2, characterized in that: The upper end of the mounting seat (10) is fixedly connected to an electric push rod (11), the telescopic end of the electric push rod (11) is fixedly connected to the upper end of the connecting rod (9), and the input end of the electric push rod (11) is electrically connected to the output end of a control system of an external device.

6. The automatic energy storage electric stop valve according to claim 1, characterized in that: The lower end of the valve cover (8) is sleeved with a sealing ring (7), which is a fluoroether rubber sealing ring, and the surface of the sealing ring (7) contacts the inner wall of the upper end of the valve body (1).

7. The automatic energy storage electric stop valve according to claim 1, characterized in that: An annular groove is provided at the upper end of the trapezoidal through hole 1 (4), a sealing gasket (6) is placed inside the annular groove, and the upper surface of the sealing gasket (6) contacts the lower surface of the blocking plate.

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