A streamlined diaphragm valve of a double-layer composite diaphragm

Abstract

The utility model discloses a kind of streamline diaphragm valves of double-layer composite diaphragm, it is related to diaphragm valve technical field.The utility model includes valve body, the top of valve body is provided with bonnet, sealing gasket is arranged between the valve body and bonnet, the valve body, bonnet and sealing gasket are fixedly connected by bolt;Control mechanism is provided on the bonnet, and the control mechanism is used to control the on-off of valve body, the bonnet is also provided with circle counting assembly, and the circle counting assembly is used to view the number of revolutions of control mechanism.The utility model in the setting of circle counting assembly, let user can intuitively and accurately through the position change of pointer on whole-tooth plate and half-tooth plate, quickly and clearly knob revolution number, and then clearly understand diaphragm main body moving distance, realize accurate control to diaphragm valve opening and flow regulation, avoid inaccurate flow control due to blind operation, improve the convenience, accuracy and operability of valve flow regulation.

Description

Technical Field

[0001] This utility model belongs to the field of diaphragm valve technology, and in particular relates to a streamlined diaphragm valve with a double-layer composite diaphragm. Background Technology

[0002] The streamlined diaphragm valve with a double-layer composite diaphragm is a diaphragm valve with a double-layer composite material diaphragm and a streamlined valve body design. Its core function is to realize the opening and closing of fluid and the regulation of flow through the elastic deformation of the diaphragm.

[0003] Currently, existing manual diaphragm valves typically require the installation of a flow meter on the pipeline. Only by working with the flow meter can the liquid flow rate be accurately adjusted. Although the flow meter can achieve a certain level of flow adjustment accuracy, it does not allow users to directly and quickly understand the correspondence between the number of rotations and the distance the diaphragm moves through the knob, thus preventing them from controlling the diaphragm valve opening and flow rate in real time and with precision. This results in the operation relying on additional equipment, making the adjustment less convenient and intuitive, and increasing equipment costs and maintenance complexity. Utility Model Content

[0004] The purpose of this invention is to provide a streamlined diaphragm valve with a double-layer composite diaphragm, which enables precise control of the diaphragm valve opening and flow rate, avoids inaccurate flow control due to blind operation, improves the convenience, accuracy and operability of valve flow rate regulation, and solves the existing technical problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A streamlined diaphragm valve with a double-layer composite diaphragm, comprising:

[0007] The valve body has a valve cover on its top, and a sealing gasket is provided between the valve body and the valve cover. The valve body, valve cover and sealing gasket are fixedly connected by bolts.

[0008] The valve cover is provided with a control mechanism for controlling the opening and closing of the valve body. The valve cover is also provided with a rotation counting component for counting the number of rotations of the control mechanism.

[0009] Optionally, the control mechanism includes a screw threaded through and connected to the top of the valve cover. A knob is fixedly provided at the top of the screw, and a diaphragm body is detachably provided at the bottom of the screw. The diaphragm body can be detached from the top opening of the valve body.

[0010] Optionally, the counting assembly includes a pointer fixedly mounted on one side of the bottom of the knob, and a full-circle toothed plate and a half-circle toothed plate fixedly mounted on the top two sides of the valve cover, respectively. The full-circle toothed plate and the half-circle toothed plate are respectively provided with full-circle scale and half-circle scale, and the initial position of the pointer points to the full-circle toothed plate.

[0011] Optionally, the diaphragm body includes a reinforcing layer made of polyester fiber and a rubber layer made of fluororubber, with the reinforcing layer located at the top and the rubber layer located at the bottom.

[0012] Optionally, a second sealing ring is embedded in the outer ring of the reinforcing layer, and the second sealing ring is in close contact with the inner wall of the valve cover.

[0013] Optionally, a connecting flange is fixedly provided at both ends of the valve body, and a sealing ring is embedded on the side of the two connecting flanges that are far apart.

[0014] Optionally, the sealing gasket protruding from the top of the valve body and valve cover is provided with diameter markings for the openings at both ends of the valve body.

[0015] The embodiments of this utility model have the following beneficial effects:

[0016] This invention, through the setting of the counting component, allows users to intuitively and accurately determine the number of knob rotations by observing the position changes of the pointer on the full-circle and half-circle toothed plates. This enables a clear understanding of the diaphragm body's movement distance, achieving precise control over the diaphragm valve opening and flow rate adjustment. It avoids inaccurate flow control due to blind operation, thus improving the convenience, accuracy, and operability of valve flow rate adjustment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall front view structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic side view of an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall disassembled structure of an embodiment of the present utility model;

[0022] Figure 4 This is an enlarged structural diagram of part A of an embodiment of the present invention.

[0023] In the diagram: 1. Valve body; 2. Valve cover; 3. Connecting flange; 4. Sealing ring one; 5. Sealing gasket; 6. Knob; 7. Screw; 8. Diaphragm body; 801. Reinforcing layer; 802. Rubber layer; 9. Sealing ring two; 10. Full-circle toothed plate; 11. Half-circle toothed plate; 12. Pointer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0027] Example 1

[0028] Please see Figure 1-4 As shown, this embodiment provides a streamlined diaphragm valve with a double-layer composite diaphragm, comprising:

[0029] The valve body 1 serves as the main support structure of the entire diaphragm valve. Both ends of the valve body 1 are fixedly equipped with connecting flanges 3. These two connecting flanges 3 are used to connect to the connection points of two pipelines or other components in the system. On the side of the two connecting flanges 3 that are far apart, sealing rings 4 are embedded. The presence of sealing rings 4 enables the valve body 1 to form a reliable seal when connected to the pipeline, preventing the medium from leaking from the connection point and ensuring the sealing and safety of the entire pipeline system.

[0030] A valve cover 2 is provided on the top of the valve body 1, and a sealing gasket 5 is provided between the valve body 1 and the valve cover 2. The sealing gasket 5 protrudes from the top of the valve body 1 and the valve cover 2, and the diameter markings of the openings at both ends of the valve body 1 are provided on it, which makes it convenient for users to quickly identify the specifications of the valve body 1 during installation and use, and facilitates matching with suitable pipelines. The valve body 1, the valve cover 2 and the sealing gasket 5 are fixedly connected by bolts. This connection method is not only stable and reliable, but also easy to disassemble and maintain. When it is necessary to inspect or replace parts inside the diaphragm valve, simply loosen the bolts to remove the valve cover 2 from the valve body 1. The operation is simple and convenient.

[0031] A control mechanism is provided on the valve cover 2. This control mechanism includes a screw 7 that is threaded through and connected to the top of the valve cover 2. A knob 6 is fixedly installed at the top of the screw 7. By rotating the knob 6, the user can drive the screw 7 to move up and down inside the valve cover 2. A diaphragm body 8 is detachably installed at the bottom of the screw 7. The diaphragm body 8 can detach from the top opening of the valve body 1. When the screw 7 moves downward, the diaphragm body 8 will fit tightly against the top opening of the valve body 1 to close the valve. When the screw 7 moves upward, the diaphragm body 8 will detach from the top opening of the valve body 1, the valve will open, and the medium can flow. The design of this control mechanism allows the user to easily control the opening and closing of the valve to meet different usage needs.

[0032] The valve cover 2 is also equipped with a counting assembly, which includes a pointer 12 fixedly mounted on one side of the bottom of the knob 6, and a full-circle toothed plate 10 and a half-circle toothed plate 11 fixedly mounted on both sides of the top of the valve cover 2. The full-circle toothed plate 10 and the half-circle toothed plate 11 are respectively provided with full-circle scale and half-circle scale. The initial position of the pointer 12 points to the full-circle toothed plate 10. When the user rotates the knob 6, the pointer 12 will rotate accordingly. By observing the position of the pointer 12 on the full-circle toothed plate 10 and the half-circle toothed plate 11, the user can know the number of rotations of the knob 6, and thus know the size of the valve opening, realizing precise flow regulation. This provides the user with an intuitive and convenient way to regulate flow, improving the efficiency and accuracy of valve use.

[0033] Example 2

[0034] Improvements based on Example 1: See Appendix Figure 4 The diaphragm body 8 includes a reinforcing layer 801 made of polyester fiber and a rubber layer 802 made of fluororubber. The reinforcing layer 801 is located at the top and the rubber layer 802 is located at the bottom. The reinforcing layer 801 made of polyester fiber has good strength and wear resistance, and can withstand greater pressure and friction, thus extending the service life of the diaphragm body 8. The rubber layer 802 made of fluororubber has excellent corrosion resistance and sealing performance, which can effectively prevent media leakage and adapt to various harsh working environments.

[0035] A sealing ring 2 9 is embedded in the outer ring of the reinforcing layer 801. The sealing ring 2 9 is in close contact with the inner wall of the valve cover 2. During the valve opening and closing process, it can prevent liquid from flowing into the upper part of the diaphragm body 8, avoid corrosion of the screw 7 and the connection between the screw 7 and the diaphragm body 8, and further improve the reliability and service life of the valve.

[0036] The usage process and working principle of this utility model technical solution are as follows:

[0037] After opening the packaging, check whether the specifications (such as diameter and hole spacing) of the connecting flanges 3 at both ends of the valve body 1 match the pipeline flanges according to the pipeline system requirements. Then clean the surface of the connecting flange 3 and the mounting groove of the sealing ring 4 to ensure that there is no oil or impurities. Then embed the sealing ring 4 into the sealing groove of the connecting flange 3, ensuring that the sealing ring is flat and not twisted to prevent it from falling off during installation. Then align the connecting flanges 3 at both ends of the valve with the pipeline flanges, insert the bolts and tighten them initially, paying attention to keeping the flange faces parallel. Use a torque wrench to tighten the bolts gradually and symmetrically according to the specifications to ensure that the sealing ring 4 is evenly compressed to prevent leakage.

[0038] Then rotate knob 6 until the valve is fully closed, and confirm that pointer 12 points to the bottom of the full circle of toothed plate 10. When the diaphragm valve needs to be adjusted during use, first observe whether pointer 12 is in the initial position, and then rotate knob 6 at a constant speed. While rotating knob 6, observe the number of rotations indicated by pointer 12. When pointer 12 rotates to half a circle of toothed plate 11, it means that knob 6 has rotated half a circle, and the diaphragm body 8 has risen up by half a circle of knob 6. When pointer 12 rotates to the full circle of toothed plate 10, it means that knob 6 has rotated one circle, and the diaphragm body 8 has risen up by one circle of knob 6. By observing the number of rotations of knob 6, the distance the diaphragm body 8 rises can be determined, and thus the flow rate of liquid in the diaphragm valve can be controlled.

[0039] During the rising and falling of the diaphragm body 8, the outer sealing ring 2 9 is always in close contact with the inner wall of the valve cover 2, thereby preventing liquid from flowing into the upper part of the diaphragm body 8 and avoiding corrosion of the internal components caused by liquid flowing into the upper part of the diaphragm body 8.

[0040] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A streamlined diaphragm valve of a double-layer composite diaphragm, characterized by, include: A valve body (1) is provided with a valve cover (2) on the top of the valve body (1), and a sealing gasket (5) is provided between the valve body (1) and the valve cover (2). The valve body (1), the valve cover (2) and the sealing gasket (5) are fixedly connected by bolts. The valve cover (2) is provided with a control mechanism, which is used to control the opening and closing of the valve body (1). The valve cover (2) is also provided with a rotation counting component, which is used to check the number of rotations of the control mechanism.

2. A flowline isolating valve of the dual composite diaphragm type as defined in claim 1, wherein, The control mechanism includes a screw (7) that is threaded through and connected to the top of the valve cover (2). A knob (6) is fixedly provided at the top of the screw (7). A diaphragm body (8) is detachably provided at the bottom of the screw (7). The diaphragm body (8) can be detached from the top opening of the valve body (1).

3. The streamlined diaphragm valve with a double-layer composite diaphragm as described in claim 1, characterized in that, The counting assembly includes a pointer (12) fixedly mounted on one side of the bottom of the knob (6). The top two sides of the valve cover (2) are respectively fixedly mounted with a full-circle toothed plate (10) and a half-circle toothed plate (11). The full-circle toothed plate (10) and the half-circle toothed plate (11) are respectively provided with full-circle scale and half-circle scale. The initial position of the pointer (12) points to the full-circle toothed plate (10).

4. The streamlined diaphragm valve with a double-layer composite diaphragm as described in claim 2, characterized in that, The diaphragm body (8) includes a reinforcing layer (801) made of polyester fiber and a rubber layer (802) made of fluororubber, with the reinforcing layer (801) located at the top and the rubber layer (802) located at the bottom.

5. A streamlined diaphragm valve with a double-layer composite diaphragm as described in claim 4, characterized in that, The outer ring of the reinforcing layer (801) is embedded with a sealing ring two (9), which is in close contact with the inner wall of the valve cover (2).

6. The streamlined diaphragm valve with a double-layer composite diaphragm as described in claim 1, characterized in that, Both ends of the valve body (1) are fixedly provided with connecting flanges (3), and sealing rings (4) are embedded on the opposite sides of the two connecting flanges (3).

7. A streamlined diaphragm valve with a double-layer composite diaphragm as described in claim 1, characterized in that, The sealing gasket (5) protrudes from the top of the valve body (1) and the valve cover (2) and is marked with the diameter of the openings at both ends of the valve body (1).

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