Up-down coaxial connecting piece of pendulum valve

Abstract

The invention relates to the technical field of pendulum valves, in particular to a pendulum valve up-down coaxial connecting piece which comprises a connecting piece body. The connecting piece body can be divided into an upper connecting piece and a lower connecting piece; the upper end of the upper connecting piece is detachably connected with a connecting bolt, and the upper connecting piece is fixedly connected with the valve plate through the connecting bolt. Wherein the upper connecting piece and the lower connecting piece are vertically and movably connected through a limiting bolt; a rebound piece is further arranged between the upper connecting piece and the lower connecting piece, when the pendulum valve is closed, the upper connecting piece is allowed to be vertically compressed and rebounded, according to the pendulum valve, an original connecting shaft is divided into two parts, and a die spring is additionally arranged at the upper-lower connecting position of the two parts, so that when the pendulum valve is closed, the upper portion of the connecting shaft can be compressed downwards, and the surface of the connecting shaft is evenly stressed.

Description

Technical Field

[0001] The invention relates to the technical field of pendulum valves, in particular to an upper and lower coaxial connecting piece of a pendulum valve. Background Art

[0002] The pendulum valve is a valve that uses the pendulum principle to control fluid. Its core feature is that the movement of the valve disc is similar to the swing of a pendulum. When the actuator receives a switch signal, it drives the valve disc to swing at a certain angle in the valve body, thereby opening and closing the valve. This design ensures that the valve surface is not pressurized when closing and opening, extending the service life of the valve.

[0003] The structure of the pendulum valve is relatively simple, usually consisting of a valve body, a valve disc, an actuator, and connectors. The valve body is the main structure of the valve, responsible for containing the fluid and supporting the valve disc; the valve disc is the key component for controlling the flow of the fluid; the actuator is responsible for driving the valve disc to swing; and the connector is used to connect the valve to other pipes or equipment.

[0004] Due to its unique swing design and good fluid control performance, pendulum valves are widely used in various industrial fluid control systems, such as semiconductors, chemicals, petroleum, natural gas, water treatment and other fields. At the same time, pendulum valves also have high reliability and durability, and can meet the use requirements under various harsh working conditions.

[0005] During the use of the existing pendulum valve, after the pendulum valve is opened, the internal connecting shaft rotates on the X-axis. When the pendulum valve is closed, the internal accessories will squeeze the connecting shaft on the Y-axis, causing it to be subjected to up and down force. After repeated force and extrusion, a groove is generated at the force-bearing end, causing the pendulum valve to lose its original function. After repeated work of the pendulum valve, the surface of the internal connecting shaft is damaged by grooves, causing the pendulum valve to become stuck when working and lose its original function. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a pendulum valve upper and lower coaxial connecting parts, which mainly solves the problem in the prior art that the service life of the connecting shaft of the internal accessories of the pendulum valve is shortened due to uneven force on the connecting shaft, resulting in a shortened service life of the pendulum valve. The modified connecting shaft can make the force on the connecting shaft uniform, the service life of the pendulum valve is longer, the maintenance cycle is extended, and the maintenance cost is reduced.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A pendulum valve upper and lower coaxial connector, comprising a connector body;

[0009] The connecting piece body can be divided into an upper connecting piece and a lower connecting piece;

[0010] The upper end of the upper connecting member is detachably connected with a connecting bolt, and the upper connecting member is fixedly connected to the valve plate through the connecting bolt;

[0011] The upper connecting member and the lower connecting member are vertically movably connected by limiting bolts;

[0012] A rebound member is also arranged between the upper connecting member and the lower connecting member. When the pendulum valve is closed, the upper connecting member is allowed to be vertically compressed and rebounded.

[0013] Preferably, the upper connecting member includes an upper shaft seat and an upper connecting seat which are integrally formed, and a threaded hole is designed on the top of the upper shaft seat for installing a connecting bolt.

[0014] Preferably, the upper connecting seat is a special-shaped structure.

[0015] Preferably, a limiting hole is also provided on the upper connecting seat.

[0016] Preferably, the lower connecting member includes a lower shaft seat, a connecting hole corresponding to the shape of the upper connecting seat is opened inside the lower shaft seat, and bolt holes are also opened on both sides of the lower shaft seat for installing limit bolts.

[0017] Preferably, the resilient member is made of high-strength, high-elasticity rubber or spring steel.

[0018] The present invention provides a pendulum valve upper and lower coaxial connecting piece, which has the following beneficial effects:

[0019] 1. In the present invention, the original connecting shaft is divided into two parts, and a mold spring is added to the upper and lower connecting parts of the two parts, so that when the pendulum valve is closed, the upper part of the connecting shaft will be compressed downward, and the surface of the connecting shaft will be evenly stressed.

[0020] 2. In the present invention, the connection between the upper connecting member and the lower connecting member is mirror-finished to minimize the friction coefficient during the up and down movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the upper and lower coaxial connecting parts of a pendulum valve in the present invention;

[0022] Figure 2 It is a schematic diagram of the exploded structure of the upper and lower coaxial connecting parts of a pendulum valve in the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper and lower coaxial connecting parts of a pendulum valve in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the upper connecting member in the present invention;

[0025] Figure 5It is a schematic structural diagram of the lower connecting member in the present invention.

[0026] In the figure: 100-connecting part body, 110-connecting bolt, 120-upper connecting part, 121-upper shaft seat, 122-upper connecting seat, 123-limiting hole, 124-shaft seat, 130-lower connecting part, 131-lower shaft seat, 132-connecting hole, 133-bolt hole, 140-limiting bolt, 150-rebound part. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention 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 present invention more thoroughly understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] As an important fluid control device, pendulum valve plays a vital role in industrial production. Its stability and durability directly affect the efficiency and cost of the production line. Therefore, the design and optimization of each component of the pendulum valve, especially the connector, is particularly important.

[0031] See also Figure 1-2 The present invention provides a technical solution:

[0032] A pendulum valve upper and lower coaxial connector includes a connector body 100, wherein the connector body 100 can be divided into an upper connector 120 and a lower connector 130, wherein the upper end of the upper connector 120 is detachably connected with a connecting bolt 110, and the upper connector 120 is fixedly connected to a valve plate via the connecting bolt 110, wherein the upper connector 120 and the lower connector 130 are movably connected via a limiting bolt 140, and a rebound member 150 is further provided between the upper connector 120 and the lower connector 130, when the pendulum valve is closed, under the action of the rebound member 150 and the limiting bolt 140, the upper connector 120 will be elastically compressed slightly, thereby reducing the stress on the connector body 10, making the force more uniform, extending the service life of the pendulum valve, extending the maintenance cycle, and reducing the maintenance cost.

[0033] like Figure 4 As shown in the figure, in this embodiment, the upper connecting member 120 further includes an upper shaft seat 121, which is the main part of the upper connecting member 120, and is responsible for installing the connecting bolts 110 and tightly connecting the valve plate and the upper connecting member. In order to ensure the stability and firmness of the connecting bolts 110, the upper shaft seat 121 is made of high-strength material and is precisely processed and heat-treated to improve its hardness and wear resistance.

[0034] The top of the upper shaft seat 121 is designed with threaded holes for installing the connecting bolts 110. These threaded holes are precisely processed and inspected to ensure that the connecting bolts 110 can be installed and removed smoothly, and also ensure the tight connection between the valve plate and the upper connecting piece.

[0035] The upper connecting seat 122 is another important component of the upper connecting member 120, which is responsible for connecting with the lower connecting member 130. In order to ensure the stability and firmness of the connection, the upper connecting seat 122 is made of the same material as the upper shaft seat 121 and undergoes the same processing and heat treatment process.

[0036] The upper connecting seat 122 is designed as a special-shaped structure, such as a square, triangle or diamond, etc. This design not only increases the contact area with the lower connecting member 130 and improves the stability of the connection, but also enables the upper connecting member 120 to rotate synchronously when the lower connecting member 130 rotates, thereby avoiding friction and wear caused by rotation.

[0037] In addition, the upper connecting seat 122 is provided with limiting holes 123. These limiting holes 123 are used to limit the displacement of the upper connecting member 120 when subjected to force, thereby preventing it from being damaged or failing due to excessive displacement.

[0038] like Figure 5As shown in FIG. 1 , in this embodiment, the lower connector 130 is another part of the connector body 100 and is responsible for firmly connecting the upper connector 120 to the valve body. Its design is also related to the stability and durability of the valve.

[0039] The lower connecting member 130 includes a lower shaft seat 131, which is responsible for installing the upper connecting member 120. In order to ensure the stability and firmness of the connection, the lower shaft seat 131 is made of the same material as the upper shaft seat 121 and undergoes the same processing and heat treatment process.

[0040] The lower shaft seat 131 has a connection hole 132 corresponding to the shape of the upper connection seat 122. These connection holes 132 are precisely processed and inspected to ensure that the upper connection member 120 can be smoothly installed in the lower shaft seat 131 and tightly connected with the lower connection member 130.

[0041] Bolt holes 133 are also provided on both sides of the lower shaft seat 131. These bolt holes 133 are used to install the limiting bolts 140 to achieve the limiting and fixing between the upper connecting member 120 and the lower connecting member 130. In order to ensure the stability and firmness of the limiting bolts 140, the bolt holes 133 adopt the same thread specifications as the connecting bolts 110 and are precisely processed and inspected.

[0042] In addition, the interior of the bolt hole 133 is specially treated to improve its wear resistance and corrosion resistance. This treatment not only prolongs the service life of the limit bolt 140, but also improves the overall performance of the connector.

[0043] like Figure 3 As shown in the figure, in this embodiment, the resilient member 150 is another important component of the connector body 100. It is responsible for elastically compressing the upper connector 120 when the pendulum valve is closed, thereby reducing the stress on the connector body 100, improving the force uniformity, and extending the service life of the pendulum valve.

[0044] The material selection of the resilient member 150 is very important. It must not only have sufficient elasticity and toughness, but also be able to withstand various forces and torques from the valve. Therefore, we choose high-strength and high-elasticity rubber or spring steel as the material of the resilient member 150.

[0045] The resilient member 15 should not only be able to fit tightly between the upper connecting member 120 and the lower connecting member 130 , but also be able to undergo elastic deformation when subjected to force, thereby absorbing and dispersing stress.

[0046] To achieve this goal, we use simple geometric shapes such as cylinders or cones as the basic structure of the resilient member 150. These shapes are not only easy to process and install, but also can provide uniform elastic deformation when subjected to force.

[0047] At the same time, in order to reduce the possibility of groove damage on the surface of the upper connecting member 120 and the lower connecting member 130 during vertical buffering, the connection between the surfaces of the upper connecting member 120 and the lower connecting member 130 is mirror-finished.

[0048] In the above, the connecting bolt 110 is responsible for fixing the upper connecting member 120 and the valve plate together. Through threaded fit and appropriate pre-tightening force, the connecting bolt 110 ensures a tight connection between the valve plate and the upper connecting member to prevent fluid leakage. The limiting bolt 140 passes through the limiting holes of the upper connecting member 120 and the lower connecting member 130 to achieve a movable connection between the two. This connection method allows the upper connecting member 120 to perform vertical buffering relative to the lower connecting member 130 within a certain range, thereby preventing the internal accessories from Y-axis extrusion of the connecting shaft when the pendulum valve is closed, causing it to be stressed up and down. After repeated stress extrusion, a groove is generated at the stressed end, causing the pendulum valve to lose its original function. The rebound member 150 is arranged between the upper connecting member 120 and the lower connecting member 130. When the valve is closed, the rebound member 150 is compressed and generates an elastic restoring force, which helps to reduce the stress on the connecting member body 100 and make the stress more uniform, thereby extending the service life of the valve.

[0049] In the above, the valve plate is fixedly connected to the upper connecting member 120 by the connecting bolt 110, and the movable connection and stable force between the upper connecting member 120 and the lower connecting member 130 are realized by the coordinated action of the limit bolt 140 and the rebound member 150. During the opening and closing process of the valve, the various components work together to ensure the smooth operation and long-term use of the valve. This design further improves the stability and durability of the valve and reduces the maintenance cost.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pendulum valve upper and lower coaxial connector, characterized in that: It comprises a connector body (100); The connector body (100) can be divided into an upper connector (120) and a lower connector (130); The upper end of the upper connecting member (120) is detachably connected to a connecting bolt (110), and the upper connecting member (120) is fixedly connected to the valve plate via the connecting bolt (110); The upper connecting member (120) and the lower connecting member (130) are vertically movably connected via a limiting bolt (140); A rebound member (150) is also provided between the upper connecting member (120) and the lower connecting member (130), and when the pendulum valve is closed, the upper connecting member (120) is allowed to be vertically compressed and rebounded.

2. A pendulum valve upper and lower coaxial connecting piece as claimed in claim 1, characterized in that: The upper connecting member (120) comprises an upper shaft seat (121) and an upper connecting seat (122) which are integrally formed, and a threaded hole is designed on the top of the upper shaft seat (121) for installing a connecting bolt (110).

3. A pendulum valve upper and lower coaxial connecting piece as claimed in claim 2, characterized in that: The upper connecting seat (122) is a special-shaped structure.

4. The pendulum valve upper and lower coaxial connecting piece according to claim 2, characterized in that: The upper connecting seat (122) is also provided with a limiting hole (123).

5. The pendulum valve upper and lower coaxial connecting piece according to claim 1, characterized in that: The lower connecting member (130) comprises a lower shaft seat (131), a connecting hole (132) corresponding to the shape of the upper connecting seat (122) is provided inside the lower shaft seat (131), and bolt holes (133) are also provided on both sides of the lower shaft seat (131) for installing limit bolts (140).

6. The pendulum valve upper and lower coaxial connecting piece according to claim 1, characterized in that: The resilient member (150) is made of high-strength and high-elasticity rubber or spring steel.

7. The pendulum valve upper and lower coaxial connecting piece according to claim 1, characterized in that: The connection between the upper connecting member (120) and the lower connecting member (130) is mirror-finished.

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