Diaphragm valve for optimizing flow path of valve body through chamfer

Abstract

The utility model discloses a diaphragm valve for optimizing a flow path of a valve body through chamfers, which relates to the field of diaphragm valves and comprises the valve body, a valve weir is mounted in the valve body, a peripheral spacer and a valve cover are mounted at the top end of the valve body, a diaphragm is mounted in the peripheral spacer, a driving mechanism is mounted in the valve cover, and the diaphragm is mounted in the valve cover. The output end of the driving mechanism is connected with a valve element, the valve element pushes the diaphragm to move downwards to be attached to the valve weir, and a chamfer is formed in the attaching position of the valve body and the peripheral spacer. The utility model mainly has the following beneficial effects: through the arrangement of the large-angle valve weir and the chamfer, when liquid flows in the valve body, the flow of the liquid can be guided through the large-angle valve weir, the impact of water flow on the valve weir is reduced, and through the arrangement of the chamfer at the position of the interface, the water flow can be prevented from flowing out of the valve body. Blocking on liquid flowing can be effectively reduced, the liquid flowing efficiency is improved, the liquid flowing area is increased, and follow-up cleaning of the interior of the valve body is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm valves, specifically a diaphragm valve whose flow path is optimized by chamfering. Background Technology

[0002] A diaphragm valve is a type of valve that uses a flexible diaphragm as its sealing element and is commonly used to control fluid flow. Its main characteristic is that the diaphragm separates the valve body cavity from the fluid, preventing the medium inside the valve body from contacting the valve components, thereby reducing wear and improving corrosion resistance. Diaphragm valves are commonly found in applications requiring prevention of contamination or leakage, such as in the food, chemical, and pharmaceutical industries. In operation, a structure is used to move the diaphragm to achieve a seal.

[0003] Existing technology, such as the dead-angle-free diaphragm valve disclosed in Chinese Patent No. CN206268499U, includes a diaphragm valve body, a diaphragm valve handwheel mounted on the top of the diaphragm valve body, an inlet port on one side of the diaphragm valve body, an outlet port on the other side of the diaphragm valve body, a protrusion inside the diaphragm valve body, an inlet channel near the inlet port and an outlet channel near the outlet port, a support rod inside the diaphragm valve handwheel, a return spring mounted on the support rod, a piston mounted at the bottom of the support rod, a connecting block mounted at the lower center of the piston, a valve disc mounted below the connecting block, and a diaphragm valve sheet mounted below the valve disc.

[0004] However, in the current manufacturing process, a bottom is provided below the valve disc to support the valve body. However, the bottom is usually a right-angle structure. During use, not only does it easily cause impurities to accumulate on the side of the bottom, but the protruding bottom also affects the flow of water, causing turbulence and easily causing wear on the bottom, thus affecting the service life of the diaphragm valve. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a diaphragm valve with optimized flow path of valve body through chamfering, so as to solve the technical problem of severe valve body wear affecting water flow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a diaphragm valve with optimized flow path through chamfering, comprising a valve body, a valve weir installed inside the valve body, an outer partition and a valve cover installed at the top of the valve body, a diaphragm installed inside the outer partition, a drive mechanism installed inside the valve cover, a valve core connected to the output end of the drive mechanism, the valve core pushing the diaphragm downward to fit against the valve weir, and a chamfer being provided at the fitting position between the valve body and the outer partition, the chamfer surrounding the valve weir.

[0007] By adopting the above technical solution, the liquid can flow easily within the valve body, reducing the obstruction of the liquid at corner positions.

[0008] The present invention is further configured such that a support is installed at the top of the valve body, the support is located below the outer partition, and the top of the support has a groove that matches the outer partition.

[0009] Preferably, it allows for convenient positioning of the outer partition.

[0010] The present invention is further configured such that a connecting plate is connected to the bottom end of the valve cover, the connecting plate is located above the outer partition, a fixing bolt is connected to the top end of the connecting plate, and the connecting plate is fixedly connected to the outer partition through the fixing bolt.

[0011] Preferably, the outer partition can be easily fixed.

[0012] The present invention is further configured such that a locking strip is provided on the outer wall of the peripheral partition, and the peripheral partition is fixedly connected to the valve body and the valve cover through the locking strip.

[0013] Preferably, this facilitates the fixing of the outer septum and improves the stability of the diaphragm.

[0014] The present invention is further configured such that an insertion hole is provided at the top of the diaphragm, and the diaphragm is fixedly connected to the valve core through the insertion hole.

[0015] Preferably, it can easily move the diaphragm up and down.

[0016] The present invention is further configured such that a guide surface is provided on the side of the valve weir, and the bottom corner of the guide surface is located outside the chamfer.

[0017] Preferably, it facilitates water flow and reduces wear on the valve body.

[0018] The present invention is further configured such that a protruding strip is provided at the top of the valve body, and the chamfer is connected to the bottom end of the protruding strip.

[0019] As a preferred option,

[0020] In summary, the present invention has the following beneficial effects: By setting a large-angle valve weir and a chamfer, the liquid can be guided to flow through the large-angle valve weir when it flows inside the valve body, reducing the impact of water flow on the valve weir. Furthermore, by setting a chamfer at the interface, the obstruction of liquid flow can be effectively reduced, improving liquid flow efficiency, increasing the liquid flow area, and facilitating subsequent cleaning of the inside of the valve body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the cross-section of the valve body of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the valve weir and chamfer position of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Valve body; 101. Support; 102. Chamfer; 103. Valve weir; 104. Guide surface; 105. Protruding strip; 2. Outer partition; 201. Diaphragm; 3. Valve cover; 301. Connecting plate; 4. Fixing bolt; 5. Drive mechanism; 501. Valve core. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Please see Figures 1 to 3 A diaphragm valve with chamfered chamfering for optimized flow path includes a valve body 1. A valve weir 103 is installed inside the valve body 1. A guide surface 104 is provided on the side of the valve weir 103, with the bottom corner of the guide surface 104 located outside a chamfer 102. An outer partition 2 and a valve cover 3 are installed at the top of the valve body 1. A diaphragm 201 is installed inside the outer partition 2. A drive mechanism 5 is installed inside the valve cover 3. The output end of the drive mechanism 5 is connected to a valve core 501. The valve core 501 pushes the diaphragm 201 downwards to fit against the valve weir 103. A chamfer 102 is provided at the fitting position between the valve body 1 and the outer partition 2. A protruding strip 105 is provided at the top of the valve body 1, and the chamfer 102 is connected to the bottom end of the protruding strip 105. The chamfer 102 surrounds the valve weir 103, which reduces wear on the valve body 1 caused by liquid flow and improves the flow efficiency of the liquid.

[0029] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 2A support plate 101 is installed at the top of the valve body 1. The support plate 101 is located below the outer partition 2, and the top of the support plate 101 has a groove that matches the outer partition 2. A connecting plate 301 is connected to the bottom of the valve cover 3. The connecting plate 301 is located above the outer partition 2, and a fixing bolt 4 is connected to the top of the connecting plate 301. The connecting plate 301 is fixedly connected to the outer partition 2 by the fixing bolt 4. A locking strip is provided on the outer wall of the outer partition 2. The outer partition 2 is fixedly connected to the valve body 1 and the valve cover 3 by the locking strip, which can easily close or open the valve cover 3, thereby facilitating the adjustment of the drive mechanism 5.

[0030] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The top of the diaphragm 201 has an insertion hole, and the outer diaphragm 201 is fixedly connected to the valve core 501 through the insertion hole.

[0031] During use, by connecting the valve body 1 to the pipeline, after the liquid enters the valve body 1, if the valve body needs to be opened, the drive mechanism 5 is activated to move the valve core 501 upward. The valve core 501 pulls the diaphragm 201 upward, separating the diaphragm 201 from the top of the valve weir 103, opening the diaphragm valve, and allowing the liquid to flow. When the liquid passes through the chamfer 102, the flow cross-section is effectively increased, increasing the flow rate and reducing wear on the inner wall of the valve body 1. The chamfer guides the flow of the liquid, reducing turbulence caused by the liquid contacting the bend, reducing dead corners on the inner wall of the valve body 1, and facilitating subsequent cleaning of the valve body 1. When it is necessary to cut off the valve body 1, the drive mechanism 5 is activated again to push the valve core 501 downward. The valve core 501 moves the diaphragm 201 downward to fit against the valve weir 103, thereby sealing the valve body 1.

[0032] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A diaphragm valve with optimized flow path through chamfering, comprising a valve body (1) having a valve weir (103) installed inside the valve body (1), characterized in that: The valve body (1) is equipped with an outer partition (2) and a valve cover (3) at its top. A diaphragm (201) is installed inside the outer partition (2). A drive mechanism (5) is installed inside the valve cover (3). The output end of the drive mechanism (5) is connected to a valve core (501). The valve core (501) pushes the diaphragm (201) to move downward and fit against the valve weir (103). A chamfer (102) is provided at the fitting position between the valve body (1) and the outer partition (2). The chamfer (102) surrounds the valve weir (103).

2. A diaphragm valve with optimized flow path through chamfering according to claim 1, characterized in that: The valve body (1) is equipped with a support plate (101) at its top end. The support plate (101) is located below the outer partition plate (2), and the top end of the support plate (101) is provided with a slot that matches the outer partition plate (2).

3. A diaphragm valve with optimized flow path through chamfering according to claim 2, characterized in that: The bottom end of the valve cover (3) is connected to a connecting plate (301), the connecting plate (301) is located above the outer partition (2), the top end of the connecting plate (301) is connected to a fixing bolt (4), and the connecting plate (301) is fixedly connected to the outer partition (2) by the fixing bolt (4).

4. A diaphragm valve with optimized flow path through chamfering according to claim 2, characterized in that: The outer wall of the peripheral partition (2) is provided with a locking strip, and the peripheral partition (2) is fixedly connected to the valve body (1) and the valve cover (3) through the locking strip.

5. A diaphragm valve with optimized flow path through chamfering according to claim 1, characterized in that: The diaphragm (201) has an insertion hole at its top end, and the diaphragm (201) is fixedly connected to the valve core (501) through the insertion hole.

6. A diaphragm valve with optimized flow path through chamfering according to claim 1, characterized in that: The valve weir (103) has a guide surface (104) on its side, and the bottom corner of the guide surface (104) is located outside the chamfer (102).

7. A diaphragm valve with optimized flow path through chamfering according to claim 1, characterized in that: The valve body (1) has a protruding strip (105) at the top, and the chamfer (102) is connected to the bottom end of the protruding strip (105).

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