Pipeline pressure stabilizing structure

Abstract

The utility model discloses a pipeline pressure stabilizing structure which comprises a pipeline and a valve body installed on the pipeline, a flexible diaphragm is arranged between the valve body and the pipeline, the flexible diaphragm is used for sealing a channel between the pipeline and the valve body, the channel in the valve body is connected with a pressing rod in a sliding mode, an elastic piece is arranged at the top of the pressing rod, and the elastic piece is connected with the valve body in a sliding mode. The elastic piece provides elastic force to act on the pressing rod so that the bottom of the pressing rod can abut against the flexible diaphragm. According to the pipeline pressure stabilizing structure, peak pressure can be eliminated, and it is guaranteed that fluid pressure conversion is stable in the valve switching process.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a pipeline pressure stabilizing structure. Background Technology

[0002] Valves are important components in fluid pipeline systems used to control the flow rate, pressure, and direction of fluids. During the process of switching the opening and closing of a fluid pipeline, the fluid pressure will have a peak pressure after the valve is switched. The peak pressure will cause drastic changes in the flow rate and velocity of the fluid in the pipeline, making the fluid transportation process unstable and leading to pipeline wear, loosening of connection parts, increased risk of leakage, and other effects. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a pipeline pressure stabilizing structure that can eliminate peak pressure and ensure smooth fluid pressure changes during valve switching.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A pipeline pressure stabilizing structure includes a pipeline and a valve body installed on the pipeline. A flexible diaphragm is provided between the valve body and the pipeline, and the flexible diaphragm is used to seal the channel between the pipeline and the valve body. A pressure rod is slidably connected to the channel inside the valve body. An elastic element is provided at the top of the pressure rod, and the elastic element provides an elastic force acting on the pressure rod so that the bottom of the pressure rod presses against the flexible diaphragm.

[0006] As a further improvement to the above technical solution, the pipeline includes a pipe body and a connecting block disposed on the pipe body. The pipe body and the connecting block are integrally formed. A valve port is disposed on the connecting block. The valve body includes a lower valve body and an upper valve body. The lower valve body is fixedly connected to the connecting block, and a first channel inside the lower valve body communicates with the valve port on the connecting block. The upper valve body is connected to the lower valve body, and a second channel inside the upper valve body communicates with the first channel and is coaxially disposed.

[0007] As a further improvement to the above technical solution, a countersunk hole is provided on the upper surface of the lower valve body, the bottom of the upper valve body is accommodated in the countersunk hole, and the lower valve body is fixed to the lower valve body by bolts.

[0008] As a further improvement to the above technical solution, a guide member is provided at the bottom of the first channel inside the upper valve body. The guide member is used to guide the pressure rod to move along the axial direction of the first channel.

[0009] As a further improvement to the above technical solution, the flexible diaphragm is disposed between the connecting block and the lower valve body, and a conical valve plate is provided at the bottom end of the pressure rod, the conical valve plate being in contact with the flexible diaphragm.

[0010] As a further improvement to the above technical solution, an adjusting member is provided on the top of the upper valve body, and the elastic member is connected between the pressure rod and the adjusting member. The adjusting member is used to adjust the force exerted by the elastic member on the pressure rod.

[0011] As a further improvement to the above technical solution, the adjusting member includes an adjusting block, which is disposed in the first channel and can move along the first channel.

[0012] As a further improvement to the above technical solution, the adjusting block adopts an adjusting nut, which is threadedly connected to the first channel of the upper valve body.

[0013] As a further improvement to the above technical solution, the elastic element is a compression spring.

[0014] As a further improvement to the above technical solution, the pressure rod is provided with an adjustment base, and the adjustment base is set perpendicular to the pressure rod. The compression spring abuts between the adjustment base and the adjustment nut, and the end of the compression spring is in sliding contact with the adjustment nut.

[0015] The beneficial effects of this utility model are:

[0016] 1. By passively absorbing and releasing pressure through elastic elements, the peak pressure generated when valves are opened and closed in the pipeline is eliminated, making the fluid pressure at the pipeline outlet more gradual, ensuring rapid and stable flow of fluid in the pipeline. Moreover, since it is a passive energy absorption process, the energy absorption and release process can be completed in a very short time.

[0017] 2. By isolating the fluid from springs and other devices through a flexible diaphragm, impurities or bubbles are not generated, thus avoiding the situation where impurities or bubbles affect the fluid in the pipeline.

[0018] 3. The structure is simple to install and use, requires no external power source, and has extremely low cost. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of a pipeline pressure stabilizing structure according to an embodiment of the present invention;

[0021] Figure 2 This is a structural exploded view of a pipeline pressure stabilizing structure according to an embodiment of this utility model;

[0022] Figure 3 This is a cross-sectional view of a pipeline pressure stabilizing structure according to an embodiment of this utility model.

[0023] Reference numerals: 1. Pipe; 101. Pipe body; 102. Connecting block; 103. Valve port; 2. Valve body; 201. Lower valve body; 202. Upper valve body; 203. Countersunk hole; 204. Internal thread; 205. First channel; 206. Second channel; 3. Flexible diaphragm; 4. Bearing cover plate; 5. Pressure rod; 6. Conical valve plate; 7. Shoulder; 8. Linear bearing; 9. Locking sleeve; 10. Adjusting base; 11. Compression spring; 12. Adjusting nut; 13. External thread. Detailed Implementation

[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / installations can use accessories such as screws and bolts, or can be directly connected by welding, bonding, etc. The various technical features in this utility model can be combined interactively without contradicting each other.

[0025] Reference Figures 1-3 This utility model provides a pipeline pressure stabilizing structure, including a pipeline 1, a valve body 2 installed on the pipeline 1, and a valve core installed inside the valve body 2. The pipeline 1 includes a pipe body 101 and a connecting block 102 disposed in the middle of the pipe body 101. The pipe body 101 and the connecting block 102 are integrally formed. A valve port 103 is provided on the connecting block 102, and the valve port 103 communicates with the pipeline of the pipe body 101. The valve body 2 includes a lower valve body 201 and an upper valve body 202. The lower valve body 201 is fixedly connected to the connecting block 102 by screws, and a first channel 205 in the lower valve body 201 communicates with the valve port 103 on the connecting block 102, so that the valve core can extend into the pipeline 1 from the valve port 103 to regulate the fluid flow rate. A flexible diaphragm 3 is provided at the valve port 103 between the valve body 2 and the pipeline 1. The flexible diaphragm 3 is used to seal the first channel 205 between the pipeline 1 and the valve body 2, and to isolate the fluid from the valve core, so as not to generate impurities or bubbles, and to avoid impurities or bubbles affecting the fluid in the pipeline 1.

[0026] The upper valve body 202 is connected to the lower valve body 201. The second channel 206 inside the upper valve body 202 communicates with and is coaxially arranged with the first channel 205. Furthermore, a countersunk hole 203 is provided on the upper surface of the lower valve body 201. The bottom of the upper valve body 202 is accommodated in the countersunk hole 203, and the shape of the upper valve body 202 corresponds to the shape of the countersunk hole 203. The lower valve body 201 is fixed to the upper valve body 201 by bolts. The countersunk hole 203 facilitates quick positioning and initial fixation when installing the upper valve body 202 and the lower valve body 201, thereby improving installation efficiency.

[0027] In this embodiment, refer to Figure 2 and Figure 3 The valve core includes a pressure rod 5, and a tapered valve plate 6 is provided at the bottom end of the pressure rod 5. The pressure rod 5 is slidably connected in the second channel 206 of the upper valve body 202, and the tapered valve plate 6 is located in the first channel 205 of the lower valve body 201 and can contact the flexible diaphragm 3. An elastic element is provided at the top of the pressure rod 5, and an adjusting element is provided at the top of the valve body 2. The elastic element is connected between the pressure rod 5 and the adjusting element, and the adjusting element is used to adjust the elastic force of the elastic element acting on the pressure rod 5.

[0028] Furthermore, refer to Figure 2 and Figure 3 A guide member is provided at the bottom of the second channel 206 inside the upper valve body 202. The guide member is used to guide the pressure rod 5 to move along the axis of the first channel 205. Specifically, the guide member includes a linear bearing 8. The outer sleeve of the linear bearing 8 is connected to the inner wall of the lower valve body 201. The pressure rod 5 passes through the inner sleeve of the linear bearing 8 and slides in contact with the inner sleeve. The linear bearing 8 provides high-precision, low-friction guidance and support for the pressure rod 5 in the linear direction, thereby improving the accuracy of the pressure stabilizing structure.

[0029] Furthermore, to facilitate the installation and removal of the linear bearing 8, a bearing cover plate 4 is bolted to the lower valve body 201, and the linear bearing 8 is pressed and fixed by the bearing cover plate 4 at the bottom. In addition, the upper valve body 202 and the lower valve body 201 are also locked by bolts on the bearing cover plate 4, which reduces the complexity of the structure and reduces the cost. In this way, during disassembly, only the bearing cover plate 4 needs to be removed by bolts to disassemble the upper valve body 202 and the linear bearing 8.

[0030] A locking sleeve 9 is fixedly sleeved on the pressure rod 5. The locking sleeve 9 limits the downward movement of the pressure rod 5. After the locking sleeve 9 and the linear bearing 8 come into contact, the pressure rod 5 is prevented from continuing to move downward, thus preventing excessive damage to the flexible diaphragm 3.

[0031] In other embodiments, the guide includes a guide groove and a guide block arranged parallel to the length direction of the guide rod 5. The guide groove and the guide block are respectively disposed on the surface of the guide rod 5 and the inner wall of the second channel 206. The guide block is slidably connected in the guide groove to guide the movement of the guide rod 5.

[0032] In this embodiment, refer to Figure 2 and Figure 3 The adjusting component includes an adjusting block, which is disposed within the first channel 205 and can move along the first channel 205. The adjusting block is an adjusting nut 12, which is threadedly connected to the first channel 205 of the upper valve body 202. Specifically, the outer periphery of the adjusting nut 12 is provided with an external thread 13, and the first channel 205 of the upper valve body 202 is provided with an internal thread 204. The adjusting nut 12 is provided with a limiting surface or an internal hexagon. By using a tool in conjunction with the limiting surface or internal hexagon, the adjusting nut 12 is rotated, thereby adjusting its height, thus realizing the adjustment of the initial height of the adjusting nut 12, that is, adjusting the height of the upper end of the compression spring 11 to adjust the compression amount of the compression spring 11, thereby adjusting the pressure on the pressure rod 5.

[0033] In actual use, the elastic force of the compression spring 11 will always act on the driving rod 5, so that the conical valve plate 6 is always under low pressure on the flexible diaphragm 3, causing the flexible diaphragm 3 to be stretched and bent into the pipe 1. After the initial height of the adjusting nut 12 is adjusted, the pressure on the rod 5 is changed, thereby changing the initial position of the flexible diaphragm 3 in the pipe 1. As a result, when fluid is introduced into the pipe 1, the elastic force of the compression spring 11 is changed to absorb different peak pressures.

[0034] Furthermore, the pressure rod 5 is provided with a shoulder 7, and an adjusting base 10 is sleeved through the shoulder 7. The adjusting base 10 is set perpendicular to the pressure rod 5. The elastic element is a compression spring 11, which abuts against the adjusting base 10 and the adjusting nut 12, thereby providing elastic force to the pressure rod 5. In addition, the end of the compression spring 11 is in sliding contact with the adjusting nut 12, so that when the adjusting nut 12 is rotated, the compression spring 11 does not rotate with it, thus avoiding the compression spring 11 from twisting and affecting its elastic performance.

[0035] In this invention, when the fluid inlet pressure in pipe 1 increases from 0, the flexible diaphragm 3 contracts under the fluid pressure, driving the conical valve plate 6 and the pressure rod 5 to move upward, and the compression spring 11 is compressed. This absorbs the peak pressure and gradually releases it after it falls below the peak value. The compression spring 11 drives the pressure rod 5 and the conical valve plate 6 to move downward, thereby achieving a steady increase in fluid pressure, eliminating the peak pressure at the outlet of pipe 1, reducing the risk of loosening and leakage at the pipe outlet connection, and improving the service life of the pipeline system.

[0036] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A pipeline pressure stabilizing structure, characterized in that: The device includes a pipe and a valve body installed on the pipe. A flexible diaphragm is provided between the valve body and the pipe, and the flexible diaphragm is used to seal the channel between the pipe and the valve body. A pressure rod is slidably connected to the channel inside the valve body. An elastic element is provided at the top of the pressure rod, and the elastic element provides an elastic force to act on the pressure rod so that the bottom of the pressure rod presses against the flexible diaphragm.

2. The pipeline pressure stabilizing structure according to claim 1, characterized in that: The pipeline includes a pipe body and a connecting block disposed on the pipe body. The pipe body and the connecting block are integrally formed. The connecting block is provided with a valve port. The valve body includes a lower valve body and an upper valve body. The lower valve body is fixedly connected to the connecting block, and a first channel in the lower valve body communicates with the valve port on the connecting block. The upper valve body is connected to the lower valve body. A second channel in the upper valve body communicates with the first channel and is coaxially arranged.

3. The pipeline pressure stabilizing structure according to claim 2, characterized in that: The upper surface of the lower valve body is provided with a countersunk hole, the bottom of the upper valve body is accommodated in the countersunk hole, and the lower valve body is fixed to the lower valve body by bolts.

4. A pipeline pressure stabilizing structure according to claim 3, characterized in that: The upper valve body is provided with a guide at the bottom of the first channel, and the guide is used to guide the pressure rod to move along the axis of the first channel.

5. A pipeline pressure stabilizing structure according to claim 4, characterized in that: The flexible diaphragm is disposed between the connecting block and the lower valve body, and a conical valve plate is provided at the bottom end of the pressure rod, the conical valve plate being in contact with the flexible diaphragm.

6. A pipeline pressure stabilizing structure according to claim 2, characterized in that: An adjusting element is provided on the top of the upper valve body. The elastic element is connected between the pressure rod and the adjusting element. The adjusting element is used to adjust the force exerted by the elastic element on the pressure rod.

7. A pipeline pressure stabilizing structure according to claim 6, characterized in that: The adjusting member includes an adjusting block, which is disposed within the first channel and is movable along the first channel.

8. A pipeline pressure stabilizing structure according to claim 7, characterized in that: The adjusting block is an adjusting nut, which is threaded into the first channel of the upper valve body.

9. A pipeline pressure stabilizing structure according to claim 8, characterized in that: The elastic element is a compression spring.

10. A pipeline pressure stabilizing structure according to claim 9, characterized in that: An adjusting base is provided on the pressure rod, and the adjusting base is perpendicular to the pressure rod. The compression spring abuts between the adjusting base and the adjusting nut, and the end of the compression spring is in sliding contact with the adjusting nut.

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