A horizontal hanging check valve

Abstract

This application belongs to the field of valve technology, specifically disclosing a horizontally mounted check valve. The horizontally mounted check valve includes a valve body and a valve disc. The valve body has an inlet channel and an outlet channel that are interconnected. The inlet channel has an extension port extending into the valve body. A mounting portion is provided within the valve body, located above the extension port, and the top surface of the mounting portion has a groove. The valve disc is an integral component, including a baffle portion, a neck portion, and a shaft portion connected in sequence. The valve disc is rotatably mounted on the groove portion via the shaft portion. The neck portion and the baffle portion form an angle at the end facing the extension port of the valve body. Under its own weight, the valve disc can cause the baffle portion to fit against the extension port, thus forming a self-sealing seal. The valve disc of this application has an integral structure design with an angled shape, which has the advantages of simple assembly and effective self-sealing using its own weight.

Description

Technical Field

[0001] This application belongs to the field of valve technology, and more specifically, relates to a horizontal hanging check valve. Background Technology

[0002] A check valve is a type of valve that uses a valve disc as its opening and closing element to prevent the backflow of a medium. Check valves belong to the category of automatic valves and are also known as non-return valves, one-way valves, or isolation valves.

[0003] In related technologies, such as Chinese patent document CN206439451U, a horizontal check valve is disclosed. The baffle (i.e., valve disc) inside the check valve is in the shape of a straight plate and is assembled inside the valve body via a rotating shaft. However, the self-sealing effect of this straight plate baffle is poor, and the installation of this straight plate baffle requires a rotating shaft, making the assembly process cumbersome and hindering the efficient production of check valves. Therefore, improvements are urgently needed. Utility Model Content

[0004] In view of the deficiencies or improvement needs of the prior art, this application provides a horizontal hanging check valve, which aims to improve the problems of poor self-sealing effect of the baffle and complicated assembly process in traditional horizontal check valves.

[0005] This application provides a horizontally mounted check valve, comprising a valve body and a valve disc, wherein: The valve body has an inlet channel and an outlet channel that are interconnected. The inlet channel has an extension port that extends into the valve body. The valve body is provided with a mounting part, which is located above the extension port, and the top surface of the mounting part is provided with a groove. The valve disc is an integral component, comprising a baffle portion, a neck portion, and a shaft portion connected in sequence. The valve disc is rotatably mounted on the groove via the shaft portion. The neck portion and the baffle portion form an angle at the extension port facing the valve body. The valve disc can make the baffle portion fit with the extension port under its own weight to form a self-sealing seal.

[0006] As a further preferred embodiment, there are two mounting parts, which are arranged side by side and spaced apart from each other; The neck is inserted between the two hanging parts, and the shaft includes protrusions on both sides of the upper end of the neck. The two protrusions are hung in the two grooves in a one-to-one correspondence.

[0007] As a further preferred embodiment, the surface roughness of the sealing surface of the extended port and the surface roughness of the sealing surface of the baffle portion are both no greater than 1.6 μm.

[0008] As a further preferred embodiment, a weight-reducing groove is provided at the center of the sealing surface of the baffle portion, and the diameter of the weight-reducing groove is not greater than the diameter of the extension port.

[0009] As a further preferred embodiment, the top of the valve body is provided with an inspection port communicating with the inner cavity of the valve body, and a detachable valve cover is provided at the inspection port, the valve cover being able to open and close the inspection port.

[0010] As a further preferred embodiment, the valve cover has a hollow shell structure, comprising a cover body, a cylinder body, and a sealing plate for covering the opening on the groove.

[0011] As a further preferred embodiment, the cover fits over the outer end of the inspection port opening, and a sealing ring is sandwiched between the two.

[0012] As a further preferred embodiment, the outer circumferential surface of the cylinder is threadedly connected to the inner circumferential wall of the inspection port.

[0013] As a further preferred embodiment, the sealing plate is connected to the lower part of the cylinder, and the thickness of the sealing plate is 2mm~3mm.

[0014] As a further preferred option, the included angle is an obtuse angle.

[0015] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages: 1. In the horizontal hanging check valve of this application, the valve disc is an integral forged part. By setting a certain angle between the neck and the baffle, the valve disc can effectively form a self-sealing effect by its own weight, thereby significantly improving the check valve's check performance.

[0016] 2. The valve cover of this application is in the shape of a hollow shell, and its bottom flat sealing plate can cover the upper opening of the groove, thereby preventing the valve disc shaft from dislodging from the groove and ensuring that the valve disc can work stably for a long time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the horizontal hanging check valve provided in the embodiments of this application; Figure 2 This is a schematic diagram of the valve body provided in the embodiment of this application; Figure 3 This is a schematic diagram of the valve disc structure provided in the embodiments of this application; Figure 4 This is a schematic diagram showing the position of the included angle in the valve disc; Figure 5 This is a schematic diagram of the valve cover provided in an embodiment of this application.

[0018] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1. Valve body; 1-1. Groove; 1-2. Extension port; 1-3. Mounting part; 1-4. Inspection port; 1-5. Valve cover; 1-5a. Cover body; 1-5b. Cylinder body; 1-5c. Sealing plate; 1-6. Sealing ring; 2. Valve disc; 2-1. Baffle part; 2-2. Neck; 2-3. Shaft part; 2-3a. Protruding structure; 2-4. Weight reduction groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0021] This application discloses a horizontally mounted check valve. (Refer to...) Figures 1-3 The horizontally mounted check valve includes a valve body 1 and a valve disc 2. The valve body 1 has an inlet channel and an outlet channel that are interconnected. The inlet channel has an extension port 1-2 that extends into the valve body 1. The valve body has a mounting part 1-3 located above the extension port 1-2, and the top surface of the mounting part 1-3 has a groove 1-1. The valve disc 2 is an integral component, which includes a baffle part 2-1, a neck 2-2, and a shaft part 2-3 connected in sequence. The valve disc 2 is rotatably mounted on the groove 1-1 through the shaft part 2-3. The neck 2-2 and the baffle part 2-1 form an angle at the end facing the extension port 1-2 of the valve body 1. The valve disc 2 can make the baffle part 2-1 fit with the extension port 1-2 under its own weight to form a self-sealing seal.

[0022] In this design, since the neck 2-2 of the valve disc 2 and the baffle part 2-1 are set at a certain angle (with angle Q), the main purpose is that when the valve disc 2 is freely hung in the groove 1-1 in the valve body 1 by means of the hanging shaft, due to the existence of angle Q, the sealing surface of the baffle part 2-1 in the valve disc 2 can be sealed by gravity and fit against the sealing surface at the extension port 1-2, thus forming a self-sealing.

[0023] The included angle is preferably an obtuse angle, and the angle Q is preferably in the range of 90° to 180°, and can be further in the range of 120° to 150°. Under the angle design, the valve disc 2 can use its own gravity to generate a force on the sealing surface, thereby increasing the sealing performance; that is, the valve disc 2 can form a good sealing effect with the extension port 1-2 by relying only on its own gravity without relying on the pressure of the medium.

[0024] Specifically, such as Figure 1 , Figure 2As shown, in some embodiments, the upper inner wall of the valve body 1 protrudes to form two parallel and spaced-apart mounting portions 1-3, each mounting portion 1-3 having a groove 1-1 formed therein; wherein, the two mounting portions 1-3 are preferably forged integrally onto the valve body 1. For example, in some embodiments, the mounting portion 1-3 includes a platform and a flange connected to the outer edge of the platform, the platform being connected to the inner wall of the valve body 1; the flange extending to connect with the inner wall of the valve body 1, and a reinforced and thickened structure being formed at the connection; the platform and the flange forming a groove 1-1 with an upper opening and a side opening.

[0025] Preferably, in some embodiments, the mounting portion 1-3 is integrally formed on the inner wall of the valve body 1 near the outer end opening of the water inlet channel. In some embodiments, to improve the structural stability of the mounting portion 1-3, a reinforcing rib is connected between the lower end of the mounting portion 1-3 and the inner wall of the valve body 1.

[0026] As for valve disc 2, neck 2-2 passes between the two mounting parts 1-3, and shaft part 2-3 includes protruding structures 2-3a respectively located on both sides of the upper end of neck 2-2 (such as...). Figure 3 As shown, the two protruding structures 2-3a are correspondingly mounted in the two grooves 1-1 to achieve the mounting of the valve disc 2. Furthermore, in some embodiments, the valve disc 2 is a component integrally forged.

[0027] Furthermore, in some embodiments, the surface roughness of the sealing surfaces of the extension port 1-2 and the baffle portion 2-1 is no greater than 1.6 μm. Under this design, a good seal can be formed between the baffle portion 2-1 and the extension port 1-2. Generally speaking, with 1.6 μm as the reference, the smaller the roughness, the better the sealing performance. When the roughness is greater than 1.6 μm, the check valve sealing performance will decrease, and leakage problems are likely to occur.

[0028] Furthermore, the outer diameter of the sealing surface of the extension port 1-2 is smaller than the outer diameter of the sealing surface of the baffle portion 2-1. Furthermore, to save material, a weight-reducing groove 2-4 is provided at the center of the sealing surface of the baffle portion 2-1, the diameter of which is no larger than the diameter of the extension port 1-2. Simultaneously, since burrs may be generated on the sealing surface of the baffle portion 2-1 during processing, the weight-reducing groove 2-4 helps to reduce burrs and protects the cutting tools used in the processing.

[0029] Furthermore, such as Figure 1 As shown, in some embodiments, the top of the valve body 1 is provided with an inspection port 1-4 that communicates with the inner cavity of the valve body 1, and a detachable valve cover 1-5 is provided at the inspection port 1-4, which can open and close the inspection port 1-4.

[0030] Furthermore, such as Figure 1 , Figure 5 As shown, in some embodiments, to reduce the weight of the valve cover 1-5 and save materials, the valve cover 1-5 has a hollow shell structure, including a cover body 1-5a, a cylindrical body 1-5b, and a sealing plate 1-5c for covering the opening on the groove 1-1. The outer diameter of the cover body 1-5a is larger than the outer diameter of the cylindrical body 1-5b. The cover body 1-5a covers the outer end of the opening of the inspection port 1-4, and a sealing ring 1-6 is sandwiched between the cover body 1-5a and the outer end face of the inspection port 1-4. The outer circumferential surface of the cylindrical body 1-5b is threaded, and the cylindrical body 1-5b is threadedly connected to the inner circumferential wall of the inspection port 1-4. The sealing plate 1-5c is integrally connected to the lower part of the cylindrical body 1-5b, and its lower surface is a large flat surface. The thickness of the sealing plate 1-5c is preferably 2mm to 3mm. This preferred thickness range is mainly set in combination with strength and material cost, which is beneficial to balancing structural strength and material cost.

[0031] In this design, after the valve disc 2 is installed inside the valve body 1, the valve cover 1-5 is screwed onto the valve body 1, so that the sealing plate 1-5c on the valve cover 1-5 fits into the groove 1-1 to form a closed space, thus forming a closed groove. This design ensures that the hanging shaft in the valve disc 2 can rotate effectively in the groove 1-1 to drive the entire valve disc 2 to open and close the extension port 1-2, while preventing the valve disc 2 from falling out of the groove 1-1 and causing functional failure. This design has significant progressive significance.

[0032] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0033] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A horizontal hanging check valve, characterized in that, Includes valve body (1) and valve disc (2), wherein: The valve body (1) has an inlet channel and an outlet channel that are interconnected. The inlet channel has an extension port (1-2) that extends into the valve body (1). The valve body (1) is provided with a mounting part (1-3), which is located above the extension port (1-2). The top surface of the mounting part (1-3) is provided with a groove (1-1). The valve disc (2) is an integral component, which includes a baffle portion (2-1), a neck portion (2-2), and a shaft portion (2-3) connected in sequence. The valve disc (2) is rotatably mounted on the groove (1-1) through the shaft portion (2-3). The neck portion (2-2) and the baffle portion (2-1) form an angle at the end facing the extension port (1-2). The valve disc (2) can make the baffle portion (2-1) fit with the extension port (1-2) under its own weight to form a self-sealing seal.

2. The horizontal hanging check valve as described in claim 1, characterized in that, There are two hanging parts (1-3), which are arranged side by side and spaced apart from each other; The neck (2-2) is inserted between the two hanging parts (1-3), and the shaft part (2-3) includes protruding structures (2-3a) on both sides of the upper end of the neck (2-2), and the two protruding structures (2-3a) are hung in the two grooves (1-1) in a one-to-one correspondence.

3. The horizontal hanging check valve as described in claim 1, characterized in that, The surface roughness of the sealing surface of the extension port (1-2) and the surface roughness of the sealing surface of the baffle part (2-1) are both no greater than 1.6 μm.

4. The horizontal hanging check valve as described in claim 1, characterized in that, A weight-reducing groove (2-4) is provided at the center of the sealing surface of the baffle part (2-1), and the diameter of the weight-reducing groove (2-4) is not greater than the diameter of the extension port (1-2).

5. The horizontal hanging check valve as described in claim 1, characterized in that, The valve body (1) has an inspection port (1-4) at its top that communicates with the inner cavity of the valve body (1). A detachable valve cover (1-5) is provided at the inspection port (1-4), and the valve cover (1-5) can open and close the inspection port (1-4).

6. The horizontal hanging check valve as described in claim 5, characterized in that, The valve cover (1-5) has a hollow shell structure, which includes a cover body (1-5a), a cylinder body (1-5b) and a sealing plate (1-5c) for covering the opening on the groove (1-1).

7. The horizontal hanging check valve as described in claim 6, characterized in that, The cover (1-5a) covers the outer end of the opening of the inspection port (1-4), and a sealing ring (1-6) is sandwiched between the two.

8. The horizontal hanging check valve as described in claim 6, characterized in that, The outer circumferential surface of the cylinder (1-5b) is threadedly connected to the inner circumferential wall of the inspection port (1-4).

9. The horizontal hanging check valve as described in claim 6, characterized in that, The sealing plate (1-5c) is connected to the lower part of the cylinder (1-5b), and the thickness of the sealing plate (1-5c) is 2mm~3mm.

10. The horizontal hanging check valve as described in any one of claims 1-9, characterized in that, The included angle is an obtuse angle.

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