Electric adjusting ball valve with high sealing performance

Abstract

The utility model relates to the technical field of ball valves, in particular to a high-sealing-performance electric adjusting ball valve which comprises a valve body and a valve seat arranged above the valve body, external connection pipes are arranged at the left end and the right end of the valve body respectively, outer rings are arranged at the opposite ends of the external connection pipes, flange plates are fixedly arranged at the left end and the right end of the outer side of the valve body in a sleeved mode, and the flange plates are connected with the valve body. An inner ring and a flexible layer are fixedly installed at the opposite ends of the flange plates, a sealing ring is arranged on the outer side of the inner ring in a sleeving mode, a valve rod is arranged in the valve seat in a sealed and penetrating mode, an electric actuator is arranged at the top of the valve seat, and an installation mechanism is arranged between the electric actuator and the valve seat. Therefore, by means of the structural design in the installation mechanism, the sealing installation effect between the electric actuator and the valve seat is improved, and meanwhile follow-up maintenance and replacement are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a high-sealing electric regulating ball valve. Background Technology

[0002] In fluid control systems, ball valves are an important control element and are widely used in various industrial pipelines. The valve, in which the opening and closing element (ball) is driven by the valve stem and rotates around the axis of the ball valve, can also be used for fluid regulation and control.

[0003] Currently, a type of high-sealing electric regulating ball valve is mostly fixed to the valve seat with bolts. This fixing method involves complicated operation steps, requires a lot of time for installation personnel, and is inconvenient for subsequent maintenance and replacement. At the same time, the sealing effect between the valve seat and the external pipe in this ball valve is poor, which easily leads to leakage and is not conducive to subsequent stable use.

[0004] In summary, this utility model solves the problems in the background art by designing a high-sealing electric regulating ball valve. Utility Model Content

[0005] The purpose of this invention is to provide a high-sealing electric regulating ball valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-sealing electric regulating ball valve includes a valve body and a valve seat disposed on the top of the valve body. External connecting pipes are respectively disposed at the left and right ends of the valve body, and outer rings are disposed at the opposite ends of the external connecting pipes. Flanges are fixedly fitted at both the left and right ends of the outer side of the valve body, and inner rings and flexible layers are fixedly installed at the opposite ends of the flanges. A sealing ring is fitted on the outer side of the inner ring. A valve stem is sealed inside the valve seat. An electric actuator is disposed on the top of the valve seat, and an installation mechanism is disposed between the electric actuator and the valve seat.

[0008] The mounting mechanism includes fasteners, limiting holes, and grooves. The fasteners are fixedly installed on the bottom surface of the electric actuator. Contact columns are fixedly installed on the bottom surface of the fasteners. Limiting friction blocks are provided at the bottom of the contact columns. The limiting holes are opened on the top side surface of the valve seat. Sealing springs and sealing blocks are respectively provided inside the grooves.

[0009] As a preferred embodiment of this utility model, the inner surface of the outer ring is in sealing contact with the outer surface of the sealing ring, and the opposing side surfaces of the outer ring are in contact with the opposing side surfaces of the flexible layer.

[0010] As a preferred embodiment of this utility model, both the outer ring and the inner ring are made of rubber, and the flexible layer is a rubber flexible layer.

[0011] As a preferred embodiment of this utility model, the outer pipe is connected to the flange via screw holes and bolts.

[0012] As a preferred embodiment of this utility model, a ball is provided inside the valve body, the bottom end of the valve stem extends into the interior of the valve body and is fixedly connected to the top surface of the ball, and the top end of the valve stem is fixedly in contact with the output end of the electric actuator.

[0013] As a preferred embodiment of this utility model, the outer surface of the contact post is in close contact with the inner wall of the limiting hole, and the limiting friction block rotates eccentrically with the bottom of the contact post through an eccentric shaft, and its top end is in frictional contact with the bottom surface of the valve seat.

[0014] As a preferred embodiment of this utility model, there are multiple sealing springs, which are equidistantly distributed in a ring around the inner wall of the bottom end of the groove, and their top ends are in contact with the bottom of the sealing block. The outer surface of the sealing block is in sealing sliding contact with the inner wall of the groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, a high-sealing electric regulating ball valve is designed to ensure that the fastener and valve seat are tightly fitted by the combination of the contact column and the limiting friction block. With multiple sealing springs evenly distributed, a constant preload is provided to the sealing block, ensuring that the sealing block maintains tight contact with the bottom surface of the fastener along the inner wall of the groove. This improves the sealing installation effect between the electric actuator and the valve seat and also facilitates subsequent maintenance and replacement.

[0017] 2. In this utility model, a high-sealing electric regulating ball valve is designed with an outer ring, an inner ring, a sealing ring, and a flexible layer. The tight contact between the outer ring and the sealing ring forms the first line of defense, effectively preventing media leakage. The contact between the outer ring and the flexible layer further enhances the sealing effect, ensuring stable use in the future. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the ball valve of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the external pipe of this utility model.

[0022] In the diagram: 1. Valve body; 2. Valve seat; 201. Valve stem; 3. External connecting pipe; 301. Outer ring; 4. Flange; 401. Inner ring; 402. Flexible layer; 403. Sealing ring; 5. Electric actuator; 6. Mounting mechanism; 601. Fastener; 602. Limiting hole; 603. Groove; 604. Contact post; 605. Limiting friction block; 606. Sealing spring; 607. Sealing pressure block. Detailed Implementation

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

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0028] A high-sealing electric regulating ball valve includes a valve body 1 and a valve seat 2 disposed above the valve body 1. The left and right ends of the valve body 1 are respectively provided with external pipes 3. The opposite ends of the external pipes 3 are provided with outer rings 301. The left and right ends of the valve body 1 are fixedly fitted with flanges 4. The opposite ends of the flanges 4 are fixedly installed with inner rings 401 and flexible layers 402. The outer side of the inner rings 401 is fitted with sealing rings 403. The valve seat 2 is internally sealed with valve stem 201. An electric actuator 5 is provided on the top of the valve seat 2. An installation mechanism 6 is provided between the electric actuator 5 and the valve seat 2.

[0029] Specifically, the inner surface of the outer ring 301 is in sealing contact with the outer surface of the sealing ring 403, and the opposing side surfaces of the outer ring 301 are in contact with the opposing side surfaces of the flexible layer 402 respectively. Both the outer ring 301 and the inner ring 401 are made of rubber, and the flexible layer 402 is a rubber flexible layer.

[0030] In this embodiment, the contact between the outer ring 301 and the sealing ring 403, as well as the contact between the outer ring 301 and the flexible layer 402, effectively enhances the sealing performance at the connection between the valve body 1 and the outer pipe 3. The rubber material and the rubber flexible layer effectively enhance the flexibility and corrosion resistance of the outer ring 301, the inner ring 401, and the flexible layer 402, thereby improving the service life of the ball valve. The multiple sealing design effectively prevents fluid leakage.

[0031] It should be noted that the external pipe 3 is installed and connected to the flange 4 through screw holes and bolts. A ball is provided inside the valve body 1. The bottom end of the valve stem 201 extends into the interior of the valve body 1 and is fixedly connected to the top surface of the ball. The top end of the valve stem 201 is fixedly in contact with the output end of the electric actuator 5.

[0032] In this embodiment, please refer to Figure 1 and Figure 2 The mounting mechanism 6 includes a fastener 601, a limiting hole 602, and a groove 603. The fastener 601 is fixedly mounted on the bottom surface of the electric actuator 5. A contact post 604 is fixedly mounted on the bottom surface of the fastener 601. A limiting friction block 605 is provided at the bottom of the contact post 604. The limiting hole 602 is opened on the top side surface of the valve seat 2. A sealing spring 606 and a sealing block 607 are respectively provided inside the groove 603.

[0033] Specifically, the outer surface of the contact post 604 is in close contact with the inner wall of the limiting hole 602. The limiting friction block 605 rotates eccentrically with the bottom of the contact post 604 through the eccentric shaft, and its top end is in frictional contact with the bottom surface of the valve seat 2. There are multiple sealing springs 606, which are equidistantly distributed in a ring about the bottom inner wall of the groove 603, and their top ends are in contact with the bottom of the sealing block 607. The outer surface of the sealing block 607 is in sealing sliding contact with the inner wall of the groove 603.

[0034] In this embodiment, the contact post 604 is mainly used to contact the limiting hole 602 to limit the fastener 601. The limiting friction block 605 rotates eccentrically and is in close contact with the bottom surface of the valve seat 2, which can fix the fastener 601 and make the fastener 601 contact the valve seat 2. The sealing spring 606 provides elastic support to the sealing block 607, so that the sealing block 607 seals and squeezes the fastener 601, thereby achieving the function of quick installation of the electric actuator 5 and meeting the maintenance needs of the installers.

[0035] The working process of this utility model is as follows: When using a high-sealing electric regulating ball valve, the electric actuator 5 is first moved, causing the fastener 601 to come close to the valve seat 2. With the contact post 604 contacting the limiting hole 602, the fastener 601 contacts the sealing block 607, causing the sealing block 607 to move towards the inside of the groove 603 and compress the sealing spring 606. This ensures the sealing between the fastener 601 and the valve seat 2. Under the eccentric rotation of the limiting friction block 605, the top of the limiting friction block 605 forms friction with the bottom surface of the valve seat 2. The ball valve is installed by rubbing the contact surfaces together, which facilitates disassembly by subsequent installers and improves its applicability. Then, the valve seat 2 is installed between the valve seat 2 and the outer pipe 3. The outer pipe 3 is moved so that the outer ring 301 wraps around the inner ring 401 and comes into contact with the sealing ring 403, ensuring the sealing effect between the outer ring 301 and the inner ring 401. Then, the outer pipe 3 is brought into contact with both ends of the valve seat 2 by bolts and threaded holes. At this time, the surface of the outer ring 301 forms a sealing contact with the flexible layer 402, which further improves the sealing effect and meets the subsequent use requirements.

[0036] 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. A high-sealing electric regulating ball valve, comprising a valve body (1) and a valve seat (2) disposed above the valve body (1), characterized in that: The valve body (1) is provided with an outer pipe (3) at both the left and right ends respectively. The outer pipe (3) is provided with an outer ring (301) at the opposite ends. The valve body (1) is provided with a flange (4) at both the left and right ends. The flange (4) is provided with an inner ring (401) and a flexible layer (402) at the opposite ends. The inner ring (401) is provided with a sealing ring (403) at the outside. The valve seat (2) is provided with a valve stem (201) inside. The valve seat (2) is provided with an electric actuator (5) at the top. The electric actuator (5) is provided with an installation mechanism (6) between the valve seat (2). The mounting mechanism (6) includes a fastener (601), a limiting hole (602), and a groove (603). The fastener (601) is fixedly mounted on the bottom surface of the electric actuator (5). A contact post (604) is fixedly mounted on the bottom surface of the fastener (601). A limiting friction block (605) is provided at the bottom of the contact post (604). The limiting hole (602) is opened on the top side surface of the valve seat (2). A sealing spring (606) and a sealing block (607) are respectively provided inside the groove (603).

2. The high-sealing electric regulating ball valve according to claim 1, characterized in that: The inner surface of the outer ring (301) is in sealing contact with the outer surface of the sealing ring (403), and the opposing side surfaces of the outer ring (301) are in contact with the opposing side surfaces of the flexible layer (402).

3. The high-sealing electric regulating ball valve according to claim 1, characterized in that: Both the outer ring (301) and the inner ring (401) are made of rubber, and the flexible layer (402) is a rubber flexible layer.

4. The high-sealing electric regulating ball valve according to claim 1, characterized in that: The external pipe (3) is installed and connected to the flange (4) through screw holes and bolts.

5. The high-sealing electric regulating ball valve according to claim 1, characterized in that: The valve body (1) has a ball inside, the bottom end of the valve stem (201) extends into the valve body (1) and is fixedly connected to the top surface of the ball, and the top end of the valve stem (201) is fixedly in contact with the output end of the electric actuator (5).

6. The high-sealing electric regulating ball valve according to claim 1, characterized in that: The outer surface of the contact post (604) is in contact with the inner wall of the limiting hole (602), and the limiting friction block (605) rotates eccentrically with the bottom of the contact post (604) through an eccentric shaft, and its top end is in frictional contact with the bottom surface of the valve seat (2).

7. The high-sealing electric regulating ball valve according to claim 1, characterized in that: There are multiple sealing springs (606), which are equidistantly distributed in a ring around the bottom inner wall of the groove (603), and their top ends are in contact with the bottom of the sealing block (607). The outer surface of the sealing block (607) is in sealing sliding contact with the inner wall of the groove (603).

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