Self-operated high pressure difference regulating valve

Abstract

The utility model relates to the technical field of regulating valves, and discloses a self-operated high-pressure-difference regulating valve which comprises a pipeline assembly and a buffer assembly installed in the pipeline assembly, the pipeline assembly is fixedly installed on the two sides of a valve assembly, a transmission assembly is fixedly installed on the valve assembly, a feedback assembly is fixedly installed on the transmission assembly, and when equipment operates, the buffer assembly is fixedly installed on the pipeline assembly. Water flow passes through the water pipe and flows into the valve assembly, in the process, the liquid baffle is driven by high pressure to rotate and deviate inwards along the rotating rod, meanwhile, the liquid baffle is driven to rebound to the original position under the rebound effect of the rebound spring, part abrasion caused by a water hammer is avoided, meanwhile, liquid pressure is conducted to an inner cavity of the piston cylinder through the communicating pipe, and the valve element and the valve rod are driven to be pressed downwards; in the downward pressing process, the through hole in the communicating position of the through groove and the valve element is gradually reduced, and therefore flowing hydraulic pressure is adjusted more smoothly and stably.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, and more specifically to a self-operated high pressure differential regulating valve. Background Technology

[0002] With the continuous improvement of industrial automation, the demand for precise control of parameters such as pressure and flow in pipeline systems is increasing. Self-operated high-pressure differential control valves, as valves that do not require external energy and rely on the pressure changes of the controlled medium itself for automatic adjustment, have wide applicability. They not only improve the stability and efficiency of the system, but also enhance the safety and reliability of the system.

[0003] Existing self-operated high-pressure differential control valves can experience water hammer when dealing with high-pressure water flow. This effect causes a rapid change in the internal pressure of the valve, resulting in a huge impact force that greatly accelerates the wear and damage of components.

[0004] In addition, existing valve core designs mostly adopt direct opening or closing methods when adjusting differential pressure, lacking an effective buffering mechanism. This means that when the valve needs to respond quickly to pressure changes, it may cause shock to the system due to instantaneous high or low pressure, affecting its stability and service life.

[0005] To address the aforementioned problems, this application provides a self-operated high-pressure differential regulating valve. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-operated high pressure differential regulating valve to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a self-operated high pressure differential regulating valve, including a pipeline assembly and a buffer assembly installed in the pipeline assembly, the pipeline assembly being fixedly installed on both sides of the valve assembly, a transmission assembly being fixedly installed on the valve assembly, and a feedback assembly being fixedly installed on the transmission assembly;

[0008] Preferably, the pipe assembly includes a water pipe, a flange ring, and fixing screws, wherein the flange ring is fixedly sleeved on the side wall of the water pipe, and the fixing screws are evenly distributed circumferentially on the side wall of the flange ring and threadedly sleeved thereon.

[0009] Preferably, the buffer assembly includes a connecting piece, a fixing block, a baffle plate, a rotating rod, a rebound spring, and a limiting block. The fixing block is fixedly installed on the connecting piece, which is fixedly installed on the inner wall of the water pipe and distributed circumferentially at different angles. The bottom of the baffle plate is movably sleeved with the rotating rod, and the rotating rod is movably engaged with the fixing block. The rebound spring is located at the engagement point between the rotating rod and the fixing block, with its two ends fixedly connected to the fixing block and the baffle plate, respectively. The limiting block is fixedly installed on both sides where the baffle plate and the fixing block are in contact. The baffle plate is engaged with the fixing block through the limiting block. At this time, the baffle plate is driven by high pressure to rotate inward along the rotating rod and is simultaneously driven to rebound back to its original position under the rebound action of the rebound spring.

[0010] Preferably, the feedback component includes a connecting pipe, a sealing ring, a piston cylinder, a piston head, and a first support column. The piston cylinder is fixedly mounted on the first support column. One end of the connecting pipe is connected to a water pipe, and the other end is fixedly fitted with a sealing ring and connected to the piston cylinder. The sealing ring is fixedly fitted to the piston cylinder, and the piston head is movably engaged with the piston cylinder. At this time, the liquid pressure is transmitted to the inner cavity of the piston cylinder through the connecting pipe, and the piston head is driven to move downward.

[0011] Preferably, the transmission assembly includes a slider, a second support column, a slide rod, and a compression spring. The slide rod, which is evenly distributed in a circle, is fixedly installed between the slider and the second support column. The upper end of the slider passes through the first support column and is fixedly connected to the piston head. The lower end of the slider is movably engaged with the slide rod. The compression spring is movably sleeved on the slide rod. At this time, under the action of the piston head, the slider is driven to move downward along the slide rod.

[0012] Preferably, the valve assembly includes a longitudinal connecting pipe, a transverse connecting pipe, a valve body, a through groove, a valve core, a through hole, a valve stem, and a sealing shaft. The longitudinal connecting pipe is fixedly installed on and communicates with the transverse connecting pipe. The valve body is fixedly snapped into the inner tube of the transverse connecting pipe. The valve body has a through groove. The valve core is movably sleeved on the valve body. The valve core has through holes that increase in size from top to bottom. The upper end of the valve core is fixedly connected to the valve stem. The upper end of the valve stem is movably sleeved on a second support column and fixedly connected to a slider. The sealing shaft is fixedly sleeved on the second support column. At this time, during the process of the valve core and valve stem being driven down, the through groove and the through hole at the connection of the valve core gradually decrease, thereby adjusting the flow of hydraulic pressure.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] When the equipment is running, water flows through the water pipe and into the valve assembly. During this process, the baffle plate is driven by high pressure to rotate inward along the rotating rod and is simultaneously driven to rebound back to its original position under the rebound action of the spring, thus avoiding water hammer and causing wear on the components. At the same time, the liquid pressure is transmitted to the inner cavity of the piston cylinder through the connecting pipe, and the valve core and valve stem are driven to press down. During the pressing process, the through hole at the connection between the through groove and the valve core gradually decreases, thereby making the flow of hydraulic pressure smoother and more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the buffer component 2 of this utility model.

[0018] Figure 4 This is a schematic diagram of the valve assembly 5 of this utility model.

[0019] The attached figures are labeled as follows: 1. Pipe assembly; 101. Water pipe; 102. Flange ring; 103. Fixing screw; 2. Buffer assembly; 201. Connecting piece; 202. Fixing block; 203. Baffle plate; 204. Rotating rod; 205. Rebound spring; 206. Limiting block; 3. Feedback assembly; 301. Connecting pipe; 302. Sealing ring; 303. Piston cylinder; 304. Piston head; 305. First support column; 4. Transmission assembly; 401. Slider; 402. Second support column; 403. Slide rod; 404. Compression spring; 5. Valve assembly; 501. Longitudinal connecting pipe; 502. Transverse connecting pipe; 503. Valve body; 504. Through groove; 505. Valve core; 506. Through hole; 507. Valve stem; 508. Sealing shaft. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The self-operated high pressure differential regulating valve involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figure 1 and Figure 2This utility model provides a self-operated high pressure differential regulating valve, including a pipeline assembly 1 and a buffer assembly 2 installed in the pipeline assembly 1. The pipeline assembly 1 is fixedly installed on both sides of the valve assembly 5. A transmission assembly 4 is fixedly installed on the valve assembly 5, and a feedback assembly 3 is fixedly installed on the transmission assembly 4.

[0022] Reference Figure 1 and Figure 2 The pipe assembly 1 includes a water pipe 101, a flange ring 102 and a fixing screw 103, wherein the flange ring 102 is fixedly sleeved on the side wall of the water pipe 101, and the fixing screw 103 is evenly distributed in a circle on the side wall of the flange ring 102 and threadedly sleeved with it.

[0023] Reference Figure 2 and Figure 3 The buffer assembly 2 includes a connecting piece 201, a fixing block 202, a baffle plate 203, a rotating rod 204, a rebound spring 205, and a limiting block 206. The fixing block 202 is fixedly installed on the connecting piece 201, and the connecting piece 201 is fixedly installed on the inner wall of the water pipe 101 and distributed circumferentially at different angles. The bottom of the baffle plate 203 is movably sleeved with the rotating rod 204, and the rotating rod 204 is movably engaged with the fixing block 202. The rebound spring 205 is located at the engagement point between the rotating rod 204 and the fixing block 202, and its two ends are fixedly connected to the fixing block 202 and the baffle plate 203, respectively. The limiting block 206 is fixedly installed on both sides where the baffle plate 203 and the fixing block 202 are in contact. The baffle plate 203 is engaged with the fixing block 202 through the limiting block 206. At this time, the baffle plate 203 is driven by high pressure to rotate inward along the rotating rod 204 and is driven to rebound back to its original position under the rebound action of the rebound spring 205.

[0024] Reference Figure 1 and Figure 2 The feedback component 3 includes a connecting pipe 301, a sealing ring 302, a piston cylinder 303, a piston head 304, and a first support column 305. The piston cylinder 303 is fixedly installed on the first support column 305. One end of the connecting pipe 301 is connected to the water pipe 101, and the other end is fixedly fitted with the sealing ring 302 and connected to the piston cylinder 303. The sealing ring 302 is fixedly fitted with the piston cylinder 303, and the piston head 304 is movably engaged with the piston cylinder 303. At this time, the liquid pressure is transmitted to the inner cavity of the piston cylinder 303 through the connecting pipe 301, and the piston head 304 is driven to move downward.

[0025] Reference Figure 1 and Figure 2The transmission assembly 4 includes a slider 401, a second support column 402, a slide rod 403, and a compression spring 404. The slide rod 403, which is evenly distributed in a circle, is fixedly installed between the slider 401 and the second support column 402. The upper end of the slider 401 passes through the first support column 305 and is fixedly connected to the piston head 304. The lower end of the slider 401 is movably engaged with the slide rod 403. The compression spring 404 is movably sleeved on the slide rod 403. At this time, under the action of the piston head 304, the slider 401 is driven to move downward along the slide rod 403.

[0026] Reference Figure 2 and Figure 4 The valve assembly 5 includes a longitudinal connecting pipe 501, a transverse connecting pipe 502, a valve body 503, a through groove 504, a valve core 505, a through hole 506, a valve stem 507, and a sealing shaft 508. The longitudinal connecting pipe 501 is fixedly installed on and connected to the transverse connecting pipe 502. The valve body 503 is fixedly snapped into the inner tube of the transverse connecting pipe 502. The valve body 503 has a through groove 504. The valve core 505 is movably sleeved on the valve body 503. The valve core 505 has through holes 506 that increase in size from top to bottom. The upper end of the valve core 505 is fixedly connected to the valve stem 507. The upper end of the valve stem 507 is movably sleeved on the second support column 402 and fixedly connected to the slider 401. The sealing shaft 508 is fixedly sleeved on the second support column 402. During the process of the valve core 505 and the valve stem 507 being driven to press down, the through hole 506 at the connection between the through groove 504 and the valve core 505 gradually decreases, thereby adjusting the flow of hydraulic pressure.

[0027] The working principle of this utility model is as follows: When the equipment is running, water flows through the water pipe 101 and into the valve assembly 5. During this process, the baffle plate 203 is driven by high pressure to rotate inward along the rotating rod 204, and at the same time, it is driven to rebound back to its original position under the rebound action of the return spring 205. Simultaneously, the liquid pressure is transmitted to the inner cavity of the piston cylinder 303 through the connecting pipe 301, and the piston head 304 is driven to move downward. The slider 401 is also driven to move downward along the sliding rod 403, and the valve core 505 and valve stem 507 are driven downward. During the pressing process, the through hole 506 at the connection between the through groove 504 and the valve core 505 gradually decreases, thereby adjusting the flow of hydraulic pressure. When the pressure inside the water pipe 101 decreases, under the action of the compression spring 404, the slider 401 moves upward along the slide rod 403. The valve rod 507, which is fixedly connected to the slider 401, drives the through hole 506 to move upward. At this time, the through hole 506 at the connection between the through groove 504 and the valve core 505 gradually increases, thereby increasing the flow rate between the water pipe 101 and the valve assembly 5.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-operated high pressure differential regulating valve comprising a pipeline assembly (1) and a buffer assembly (2) installed in the pipeline assembly (1), characterized in that: The pipeline assembly (1) is fixedly installed on both sides of the valve assembly (5), the transmission assembly (4) is fixedly installed on the valve assembly (5), the feedback assembly (3) is fixedly installed on the transmission assembly (4), the pipeline assembly (1) comprises a water pipe (101), the buffer assembly (2) comprises a connecting sheet (201), a fixed block (202), a liquid baffle (203), a rotating rod (204), a rebound spring (205) and a limiting block (206), the fixed block (202) is fixedly installed on the connecting sheet (201), the connecting sheet (201) is fixedly installed on the inner wall of the water pipe (101) and is circumferentially distributed at different angles, the bottom of the liquid baffle (203) is movably sleeved with the rotating rod (204), the rotating rod (204) is movably clamped with the fixed block (202), the rebound spring (205) is arranged at the clamping position of the rotating rod (204) and the fixed block (202), and the two ends of the rebound spring (205) are fixedly connected with the fixed block (202) and the liquid baffle (203) respectively, the limiting block (206) is fixedly installed on the two sides of the liquid baffle (203) and the fixed block (202) abutting each other, and the liquid baffle (203) is clamped with the fixed block (202) through the limiting block (206).

2. The self-operated high pressure differential regulating valve according to claim 1, characterized in that: The pipeline assembly (1) further comprises a flange ring (102) and a fixed screw (103), the flange ring (102) is fixedly sleeved on the side wall of the water pipe (101), and the fixed screw (103) is circumferentially and uniformly distributed on the side wall of the flange ring (102) and is threadedly sleeved with the flange ring (102).

3. A self-operated high pressure differential regulating valve according to claim 2, characterized in that: The feedback assembly (3) comprises a communication pipe (301), a sealing ring (302), a piston cylinder (303), a piston head (304) and a first support column (305), the piston cylinder (303) is fixedly installed on the first support column (305), one end of the communication pipe (301) is communicated with the water pipe (101), the other end of the communication pipe (301) is fixedly sleeved with the sealing ring (302) and is communicated with the piston cylinder (303), the sealing ring (302) is fixedly sleeved with the piston cylinder (303), and the piston head (304) is movably clamped with the piston cylinder (303).

4. The self-operated high pressure differential regulating valve according to claim 3, characterized in that: The transmission assembly (4) comprises a sliding block (401), a second support column (402), a sliding rod (403) and a compression spring (404), the sliding rod (403) is circumferentially and uniformly arranged between the sliding block (401) and the second support column (402), the upper end of the sliding block (401) penetrates through the first support column (305) and is fixedly connected with the piston head (304), the lower end of the sliding block (401) is movably clamped with the sliding rod (403), and the compression spring (404) is movably sleeved with the sliding rod (403).

5. A self-reliant high pressure differential regulating valve according to claim 4, characterized in that: The valve assembly (5) comprises a longitudinal connecting pipe (501), a transverse connecting pipe (502), a valve body (503), a through slot (504), a valve core (505), a through hole (506), a valve rod (507) and a sealing shaft (508), wherein the longitudinal connecting pipe (501) is fixedly installed on the transverse connecting pipe (502) and communicates with the same, the valve body (503) is fixedly clamped in the inner pipe of the transverse connecting pipe (502), the valve body (503) is provided with the through slot (504), the valve core (505) movably sleeves the valve body (503), the valve core (505) is provided with the through hole (506) from top to bottom in sequence, the valve core (505) is fixedly connected with the valve rod (507) at the upper end, the valve rod (507) movably sleeves the second supporting column (402) at the upper end and is fixedly connected with the sliding block (401), and the sealing shaft (508) fixedly sleeves the second supporting column (402).

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