Electric upward-expanding type emptying valve

Abstract

A first flange is arranged at the top end of a valve body, a sealing piece is coaxially arranged on the first flange, the lower portion of the valve body faces the inclined lower portion and is provided with a second flange, a shaft seat is arranged at the bottom of the valve body, a connecting seat is arranged at the bottom of the shaft seat, and the top end of a connecting frame is connected with the lower surface of the connecting seat. The input end of the electric actuator is connected with the bottom of the connecting frame through a flange, the electric actuator is matched with the worm, the bottom end of the valve rod is connected with the top end of the worm through a coupler, the valve rod penetrates through the shaft seat and is in sliding fit with the shaft seat, and the valve element is arranged at the top end of the valve rod and is in close fit with the sealing piece. A plurality of reinforcing plates and a reinforcing triangular plate are arranged on the periphery of the shaft seat, the reinforcing triangular plate is arranged in a triangular area between the valve body and the shaft seat, and the other reinforcing plates are arranged between the valve body and the connecting seat, so that the structural strength between the valve body and the shaft seat is greatly improved; and the situation that the joint of the valve body and the shaft seat deforms after long-term use is avoided, so that the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to valve technology, specifically an electric upward-expanding discharge valve. Background Technology

[0002] Top-mounted discharge valves are commonly used in reactors, storage tanks, and other containers for bottom discharge, material release, sampling, and dead-zone-free shut-off operations. Electric top-mounted discharge valves employ an electric actuator as the drive unit, which works in conjunction with a worm gear. The electric actuator drives the worm gear and valve stem to rise and fall, thereby opening and closing the valve through the interaction of the valve core and the sealing elements.

[0003] Because the electric actuator is located at the bottom of the top-mounted discharge valve, and there is an angle between the shaft seat and the valve body, the electric actuator is relatively heavy and will vibrate during operation. During long-term operation, the connection between the shaft seat and the valve body of the electric top-mounted discharge valve may deform. Once a slight deformation occurs, the valve stem will jam due to the friction between it and the shaft seat, thus affecting its service life. Therefore, there is an urgent need for an improved technology to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide an electrically operated upward-expanding discharge valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric upward-expanding discharge valve, comprising a valve body, a connecting frame, an electric actuator, a valve stem, and a valve core;

[0006] The valve body is provided with a first flange at the top, and a sealing element is coaxially provided on the first flange. The valve body is provided with a second flange facing downwards at the bottom. The valve body is provided with a bearing seat at the bottom, and a connecting seat is provided at the bottom of the bearing seat. Several reinforcing plates are provided around the bearing seat. The top of the reinforcing plates is connected to the lower surface of the valve body, and the bottom of the reinforcing plates is connected to the upper surface of the connecting seat. A reinforcing triangular plate is also provided between the bearing seat and the valve body.

[0007] The top of the connecting frame is connected to the lower surface of the connecting seat;

[0008] The input end of the electric actuator is connected to the bottom of the connecting frame via a flange, and the electric actuator is engaged with a worm gear;

[0009] The bottom end of the valve stem is connected to the top end of the worm gear via a coupling. The valve stem passes through the shaft seat and slides with the shaft seat. The top end of the valve stem is provided with a valve core, which is in close contact with the sealing element.

[0010] Preferably, the electric top-mounted discharge valve provided by this utility model has guide protrusions on the inner walls of both sides of the connecting frame, guide plates on both sides of the coupling, guide grooves at the outer ends of the guide plates, and clamping plates installed on one side of the guide plates by bolts and nuts. The guide plates slide in cooperation with the guide protrusions through the guide grooves.

[0011] Preferably, the present invention provides an electric top-mounted discharge valve, wherein the connecting seat and the shaft seat have a through-hole, the valve stem passes through the through-hole, and the outer diameter of the valve stem is the same as the inner diameter of the through-hole.

[0012] Preferably, the electric top-mounted discharge valve provided by this utility model includes a packing groove inside the connecting seat and packing material inside the packing groove, and the valve stem passing through the packing material.

[0013] Preferably, the electric top-mounted discharge valve provided by this utility model has a connecting plate at the top of the connecting frame, and the connecting plate is fastened to the connecting seat by bolts and nuts.

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

[0015] The shaft seat is surrounded by several reinforcing plates and a reinforcing triangular plate. The reinforcing triangular plate is located in the triangular area between the valve body and the shaft seat, while the remaining reinforcing plates are located between the valve body and the connecting seat. By setting multiple reinforcing plates and a reinforcing triangular plate, the structural strength between the valve body and the shaft seat is greatly improved, avoiding deformation at the connection between the valve body and the shaft seat after long-term use, thereby improving the service life of the discharge valve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the valve body cross-section structure;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention located at the coupling.

[0020] In the diagram: 1. Valve body; 2. Connecting frame; 3. Electric actuator; 4. Valve stem; 5. Valve core; 6. First flange; 7. Seal; 8. Second flange; 9. Shaft seat; 10. Connecting seat; 11. Reinforcing plate; 12. Reinforcing triangular plate; 13. Worm gear; 14. Coupling; 15. Guide protrusion; 16. Guide plate; 17. Guide groove; 18. Clamping plate; 19. Channel; 20. Packing; 21. Connecting plate. Detailed Implementation

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

[0022] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an electric upward discharge valve, including a valve body 1, a connecting frame 2, an electric actuator 3, a valve stem 4, and a valve core 5;

[0024] A first flange 6 is provided at the top of the valve body 1. A sealing element 7 is coaxially provided on the first flange 6. The sealing element 7 is connected to the first flange 6 by screws. A second flange 8 is provided at the lower part of the valve body 1 facing downwards. A shaft seat 9 is provided at the bottom of the valve body 1. A connecting seat 10 is provided at the bottom of the shaft seat 9. Several reinforcing plates 11 are provided around the shaft seat 9. The top of the reinforcing plate 11 is connected to the lower surface of the valve body 1, and the bottom of the reinforcing plate 11 is connected to the upper surface of the connecting seat 10. A reinforcing triangular plate 12 is also provided between the shaft seat 9 and the valve body 1.

[0025] The top of the connecting frame 2 is connected to the lower surface of the connecting seat 10. A connecting plate 21 is provided at the top of the connecting frame 2. The connecting plate 21 is fastened to the connecting seat 10 by bolts and nuts to realize the connection between the connecting frame 2 and the connecting seat 10.

[0026] The input end of the electric actuator 3 is connected to the bottom of the connecting frame 2 via a flange, and the electric actuator 3 is engaged with the worm gear 13;

[0027] The bottom end of the valve stem 4 is connected to the top end of the worm gear 13 via a coupling 14. Guide protrusions 15 are provided on the inner walls of both sides of the connecting frame 2. Guide plates 16 are provided on both sides of the coupling 14. Guide grooves 17 are opened at the outer ends of the guide plates 16. A clamping plate 18 is installed on one side of the guide plate 16 via bolts and nuts. The guide plate 16 slides with the guide protrusions 15 through the guide grooves 17. Through the cooperation between the guide plate 16 and the clamping plate 18, the guide grooves 17 at the outer ends of the guide plates 16 guide the guide protrusions 15, thereby preventing the worm gear 13 and valve stem 4 from rotating, thus achieving the lifting and lowering of the worm gear 13 and valve stem 4. Simultaneously, a... The above structure allows the coupling 14 to be installed in the connecting frame 2, the valve stem 4 to pass through the shaft seat 9 and slide with the shaft seat 9, the connecting seat 10 and the shaft seat 9 to have a through channel 19, the valve stem 4 to pass through the channel 19, the outer diameter of the valve stem 4 to be the same as the inner diameter of the channel 19 to ensure the stability of the valve stem 4, the connecting seat 10 to have a packing groove and the packing 20 to be filled in the packing groove, the valve stem 4 to pass through the packing 20, the packing 20 to ensure the sealing between the valve stem 4 and the shaft seat 9, the top of the valve stem 4 to have a valve core 5, the valve core 5 to be tightly fitted with the sealing element 7.

[0028] Assembly method and operating principle: After machining the valve body 1, a bearing seat 9 is connected to the bottom of the valve body 1. A connecting seat 10 is set at the bottom of the bearing seat 9. Then, according to different positions, multiple reinforcing plates 11 and a reinforcing triangular plate 12 are machined. First, the reinforcing triangular plate 12 is welded between the valve body 1 and the bearing seat 9. Then, each reinforcing plate 11 is welded to the corresponding position on the side wall of the bearing seat 9. Then, the top and bottom ends of the reinforcing plates 11 are welded to the valve body 1 and the connecting seat 10 respectively. Next, the packing 20 is filled into the packing groove of the connecting seat 10. The connecting frame 2 is fastened to the connecting seat 10 through the connecting plate 21 and bolts and nuts. The positions of the bolts and each reinforcing plate 11 are staggered. Then, the electric actuator 3, which is connected with the worm gear 13, is connected to the bottom of the connecting frame 2 through the flange. At this time, the upper end of the worm gear 13 enters the connecting frame 2. Finally, the valve stem 4, connected to the valve core 5, passes through the first flange 6 and the shaft seat 9. The bottom of the valve stem 4 enters the connecting frame 2 and is connected to the top of the worm gear 13 via the coupling 14. After the guide grooves 17 at the outer ends of the guide plates 16 on both sides of the coupling 14 engage with the guide protrusions 15 on the inner wall of the connecting frame 2, the clamping plate 18 is used to tighten and limit the position, thereby guiding the coupling 14 and ensuring that the valve stem 4 will not rotate, thus completing the assembly. During operation, the electric actuator 3 drives the worm gear 13 to rise and fall vertically through the internal worm wheel, thereby driving the valve stem 4 to rise and fall. When the valve stem 4 is lifted, the valve core 5 leaves the sealing element 7, at which point the discharge valve opens and is in the discharge state. When the valve stem 4 descends, the valve core 5 is pressed into the sealing element 7, at which point the discharge valve is in the closed state. This utility model has a reasonable structure. The outer periphery of the bearing seat 9 is provided with several reinforcing plates 11 and a reinforcing triangular plate 12. The reinforcing triangular plate 12 is located in the triangular area between the valve body 1 and the bearing seat 9, while the remaining reinforcing plates 11 are located between the valve body 1 and the connecting seat 10. By providing multiple reinforcing plates 11 and a reinforcing triangular plate 12, the structural strength between the valve body 1 and the bearing seat 9 is greatly improved, avoiding deformation at the connection between the valve body 1 and the bearing seat 9 after long-term use, thereby improving the service life of the discharge valve.

[0029] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0030] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrically operated, upward-expanding discharge valve, characterized in that: Includes valve body (1), connecting frame (2), electric actuator (3), valve stem (4) and valve core (5); The valve body (1) is provided with a first flange (6) at the top, and a sealing element (7) is provided coaxially with the first flange (6). The valve body (1) is provided with a second flange (8) facing downwards at the bottom. The valve body (1) is provided with a bearing seat (9) at the bottom, and a connecting seat (10) is provided at the bottom of the bearing seat (9). Several reinforcing plates (11) are provided around the bearing seat (9). The top of the reinforcing plate (11) is connected to the lower surface of the valve body (1), and the bottom of the reinforcing plate (11) is connected to the upper surface of the connecting seat (10). A reinforcing triangular plate (12) is also provided between the bearing seat (9) and the valve body (1). The top of the connecting frame (2) is connected to the lower surface of the connecting seat (10); The input end of the electric actuator (3) is connected to the bottom of the connecting frame (2) through a flange, and the electric actuator (3) is engaged with the worm gear (13); The bottom end of the valve stem (4) is connected to the top end of the worm gear (13) through a coupling (14). The valve stem (4) passes through the shaft seat (9) and slides with the shaft seat (9). The top end of the valve stem (4) is provided with a valve core (5), which is in close contact with the seal (7).

2. The electrically operated upward-expanding discharge valve according to claim 1, characterized in that: The inner walls on both sides of the connecting frame (2) are provided with guide protrusions (15), and the two sides of the coupling (14) are provided with guide plates (16). The outer end of the guide plate (16) is provided with a guide groove (17). A clamping plate (18) is installed on one side of the guide plate (16) by bolts and nuts. The guide plate (16) slides with the guide protrusions (15) through the guide groove (17).

3. The electrically operated upward-expanding discharge valve according to claim 1, characterized in that: The connecting seat (10) and the shaft seat (9) have a through channel (19) inside, and the valve stem (4) passes through the channel (19). The outer diameter of the valve stem (4) is the same as the inner diameter of the channel (19).

4. The electrically operated upward-expanding discharge valve according to claim 1, characterized in that: The connecting seat (10) is also provided with a packing groove and is filled with packing (20), and the valve stem (4) passes through the packing (20).

5. The electrically operated upward-expanding discharge valve according to claim 1, characterized in that: The top of the connecting frame (2) is provided with a connecting plate (21), which is fastened to the connecting seat (10) by bolts and nuts.

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