A dispensing valve having a cushioning device

Abstract

The utility model provides a kind of distribution valve with buffer device, it is related to distribution valve technical field, including distribution valve body, the top of distribution valve body is embedded and slidingly connected with vertical column valve core, the surface of vertical column valve core and close to the center place is equipped with through-hole, the surface of vertical column valve core and located above and below through-hole are equipped with arc hole, the top of distribution valve body is equipped with top cover, the top of top cover is fixedly connected with hydraulic rod, the output end of hydraulic rod is passed through top cover and is fixedly connected with vertical column valve core top, one side of distribution valve body is equipped with feed cylinder, distribution valve body and feed cylinder between being equipped with cylinder, annular groove is equipped in the inner wall of cylinder.In the utility model, by the integrated buffer structure of funnel cylinder and spring, fluid impact is converted into spring elastic deformation energy, instantaneous impact force is dispersed and absorbed, valve core position is stabilized, valve core and sealing element wear are reduced, and flow control precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of distribution valve technology, and in particular to a distribution valve with a buffer device. Background Technology

[0002] In modern industrial production, such as petrochemicals, metallurgy, and power generation, fluid transport and distribution are crucial aspects of the production process. For example, in petrochemicals, different chemical raw materials need to be precisely distributed to various reaction vessels for chemical reactions; in the metallurgical industry, high-temperature molten metal needs to be accurately distributed to different molds for molding. As a core component controlling fluid distribution, the performance of the distribution valve directly affects production efficiency, quality, and safety.

[0003] In traditional distribution valves, the valve core and valve body rely solely on seals (such as sealing rings) to resist impacts, lacking an active buffer design. When fluid pressure changes abruptly, the valve core is easily affected by instantaneous impact forces, leading to accelerated wear of seals, valve core displacement deviation, and reduced flow control accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where the valve core and valve body are only matched with the seal to resist impact, lacking active buffer design. When the fluid pressure changes suddenly, the valve core is easily affected by the instantaneous impact force, which leads to accelerated wear of the seal and displacement deviation of the valve core. Therefore, this invention proposes a distribution valve with a buffer device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a distribution valve with a buffer device, comprising a distribution valve body, a vertical column valve core embedded and slidably connected to the top of the distribution valve body, a through hole being formed on the surface of the vertical column valve core near its center, and arc holes being formed on the surface of the vertical column valve core above and below the through hole, a top cover being installed on the top of the distribution valve body, a hydraulic rod being fixedly connected to the top of the top cover, the output end of the hydraulic rod penetrating the top cover and being fixedly connected to the top of the vertical column valve core, a feed cylinder being provided on one side of the distribution valve body, a cylinder being installed between the distribution valve body and the feed cylinder, an annular groove being formed on the inner wall of the cylinder, a funnel cylinder being provided inside the annular groove, and a fixing rod being slidably connected through the surface of the funnel cylinder at equal intervals inside the annular groove, both ends of the fixing rod being fixedly connected to the inner wall of the annular groove, and a spring being sleeved on the surface of the fixing rod.

[0006] Preferably, the distribution valve body is a four-way valve.

[0007] Preferably, a first sealing ring is embedded and fixedly connected to the surface of the vertical column valve core on both sides of the through hole and the arc hole.

[0008] Preferably, the two ends of the spring are fixedly connected to the funnel cylinder and the inner wall of the annular groove, respectively.

[0009] Preferably, the inner wall of the funnel cylinder is provided with a trapezoidal annular groove.

[0010] Preferably, a second sealing ring is installed between the distribution valve body, the feed cylinder, and the cylindrical body.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the integrated buffer structure of the funnel and the spring converts the fluid impact into the elastic deformation energy of the spring, disperses and absorbs the instantaneous impact force, stabilizes the valve core position, reduces the wear of the valve core and seals, and improves the flow control accuracy.

[0013] 2. In this utility model, the spring and the funnel cylinder work together to adapt to fluid impacts of different directions and frequencies, which can effectively dampen vibrations, thereby protecting the valve body and downstream pipelines and extending the system life. Attached Figure Description

[0014] Figure 1 A perspective view of the overall structure of a distribution valve with a buffer device is provided for this utility model;

[0015] Figure 2 A cross-sectional view of the overall structure of a distribution valve with a buffer device is provided for this utility model;

[0016] Figure 3 A perspective view of a funnel-shaped structure of a distribution valve with a buffer device is provided for this utility model.

[0017] Figure 4 This utility model presents a three-dimensional view of a vertical column valve core structure with a buffer device.

[0018] Legend: 1. Distributor valve body; 2. Vertical column valve core; 3. Through hole; 4. Arc hole; 5. First sealing ring; 6. Top cover; 7. Hydraulic rod; 8. Feed cylinder; 9. Cylinder; 10. Annular groove; 11. Funnel cylinder; 12. Trapezoidal annular groove; 13. Fixing rod; 14. Spring; 15. Second sealing ring. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1-4 As shown, this utility model provides a distribution valve with a buffer device, including a distribution valve body 1. A vertical column valve core 2 is embedded and slidably connected to the top of the distribution valve body 1. A through hole 3 is opened on the surface of the vertical column valve core 2 near the center. Arc holes 4 are opened on the surface of the vertical column valve core 2 above and below the through hole 3. A top cover 6 is installed on the top of the distribution valve body 1. A hydraulic rod 7 is fixedly connected to the top of the top cover 6. The output end of the hydraulic rod 7 passes through the top cover 6 and is fixedly connected to the top of the vertical column valve core 2. A feed cylinder 8 is provided on one side of the distribution valve body 1. A cylinder 9 is installed between the distribution valve body 1 and the feed cylinder 8. An annular groove 10 is opened on the inner wall of the cylinder 9. A funnel cylinder 11 is provided inside the annular groove 10. A fixing rod 13 is slidably connected through the surface of the funnel cylinder 11 and inside the annular groove 10 at equal intervals. Both ends of the fixing rod 13 are fixedly connected to the inner wall of the annular groove 10. A spring 14 is sleeved on the surface of the fixing rod 13.

[0022] The overall effect of Embodiment 1 is as follows: a vertical valve core 2 is embedded and slidably connected to the top of the distribution valve body 1. A through hole 3 is opened on the surface of the vertical valve core 2 near its center. Arc holes 4 are opened on the surface of the vertical valve core 2 above and below the through hole 3, which can adjust the vertical valve core 2 to align the through hole 3 and arc holes 4 with the pipeline of the distribution valve body 1. A top cover 6 is installed on the top of the distribution valve body 1. A hydraulic rod 7 is fixedly connected to the top of the top cover 6. The output end of the hydraulic rod 7 passes through the top cover 6 and is fixedly connected to the top of the vertical valve core 2, which can drive the vertical valve core 2 to rise and fall inside the distribution valve body 1. A feed cylinder is provided on one side of the distribution valve body 1. 8. A cylinder 9 is installed between the distribution valve body 1 and the feed cylinder 8. An annular groove 10 is provided on the inner wall of the cylinder 9. A funnel cylinder 11 is provided inside the annular groove 10. Fixed rods 13 are equidistantly connected to the surface of the funnel cylinder 11 and inside the annular groove 10. Both ends of the fixed rods 13 are fixedly connected to the inner wall of the annular groove 10. Springs 14 are sleeved on the surface of the fixed rods 13. This allows the fluid to enter the cylinder 9 through the feed cylinder 8 and impact the funnel cylinder 11. Under the action of fluid pressure, the funnel cylinder 11 slides along the fixed rods 13 into the annular groove 10, compressing the springs 14. The springs 14 absorb the impact kinetic energy of the fluid through elastic deformation and convert it into the elastic potential energy of the springs 14, achieving a preliminary buffering effect.

[0023] Example 2, as Figure 1-4As shown, the distribution valve body 1 is a four-way valve; the surface of the vertical column valve core 2 and both sides of the through hole 3 and the arc hole 4 are embedded and fixedly connected with the first sealing ring 5; the two ends of the spring 14 are fixedly connected to the funnel cylinder 11 and the inner wall of the annular groove 10 respectively; the inner wall of the funnel cylinder 11 is provided with a trapezoidal annular groove 12; the distribution valve body 1, the feed cylinder 8 and the cylinder 9 are all equipped with a second sealing ring 15.

[0024] The overall effect of embodiment 2 is as follows: by using a four-way valve body 1, the incoming fluid can be diverted to three points; by embedding and fixing a first sealing ring 5 on the surface of the vertical column valve core 2 on both sides of the through hole 3 and the arc hole 4, the first sealing ring 5 can seal the vertical column valve core 2; by fixing the two ends of the spring 14 to the funnel cylinder 11 and the inner wall of the annular groove 10 respectively, the two ends of the spring 14 can be fixed; by providing a trapezoidal annular groove 12 on the inner wall of the funnel cylinder 11, the buffering effect can be improved; by installing a second sealing ring 15 between the distribution valve body 1, the feed cylinder 8 and the cylinder 9, the second sealing ring 15 can seal both ends of the cylinder 9.

[0025] Working principle: The fluid enters the cylinder 9 through the feed cylinder 8 and impacts the funnel cylinder 11. Under the action of fluid pressure, the funnel cylinder 11 slides along the fixed rod 13 into the annular groove 10, compressing the spring 14. The spring 14 absorbs the kinetic energy of the fluid impact through elastic deformation, converting it into the elastic potential energy of the spring 14, achieving initial buffering and reducing the instantaneous pressure of the fluid on the distribution valve body 1. The hydraulic rod 7 drives the vertical column valve core 2 to slide within the distribution valve body 1. Through the corresponding cooperation of the through hole 3, the arc hole 4 and the valve body passage, multi-pass fluid distribution is achieved. The first sealing ring 5 ensures the seal between the valve core and the valve body, preventing leakage. The buffered fluid pressure is more stable, reducing the impact interference during valve core adjustment and improving the flow distribution accuracy. After the fluid impact weakens, the elastic force of the spring 14 pushes the funnel cylinder 11 to reset, restoring the initial passage state. The trapezoidal annular groove 12 optimizes the force on the spring 14, avoiding the spring 14 being unbalanced, ensuring the long-term stability of the buffer structure. The second sealing ring 15 ensures the seal between the distribution valve body 1, the feed cylinder 8, and the cylinder 9, preventing fluid leakage from affecting the buffering and distribution functions. At the same time, removing the top cover 6 allows for the disassembly and maintenance of the vertical column valve core 2.

[0026] The wiring diagrams of the distribution valve body 1, the vertical column valve core 2, and the spring 14 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the distribution valve body 1, the vertical column valve core 2, and the spring 14 will not be explained in detail.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A distribution valve with a buffer device, comprising a distribution valve body (1), characterized in that: A vertical column valve core (2) is embedded and slidably connected to the top of the distribution valve body (1). A through hole (3) is opened on the surface of the vertical column valve core (2) near the center. Arc holes (4) are opened on the surface of the vertical column valve core (2) above and below the through hole (3). A top cover (6) is installed on the top of the distribution valve body (1). A hydraulic rod (7) is fixedly connected to the top of the top cover (6). The output end of the hydraulic rod (7) passes through the top cover (6) and is fixedly connected to the top of the vertical column valve core (2). 1) A feed cylinder (8) is provided on one side. A cylinder (9) is installed between the distribution valve body (1) and the feed cylinder (8). An annular groove (10) is provided on the inner wall of the cylinder (9). A funnel cylinder (11) is provided inside the annular groove (10). A fixed rod (13) is equidistantly connected to the surface of the funnel cylinder (11) and inside the annular groove (10). Both ends of the fixed rod (13) are fixedly connected to the inner wall of the annular groove (10). A spring (14) is sleeved on the surface of the fixed rod (13).

2. A distribution valve with a buffer device according to claim 1, characterized in that: The distribution valve body (1) is a four-way valve.

3. A distribution valve with a buffer device according to claim 1, characterized in that: The surface of the vertical column valve core (2) and both sides of the through hole (3) and the arc hole (4) are fitted with and fixedly connected with the first sealing ring (5).

4. A distribution valve with a buffer device according to claim 1, characterized in that: The two ends of the spring (14) are fixedly connected to the inner wall of the funnel cylinder (11) and the annular groove (10), respectively.

5. A distribution valve with a buffer device according to claim 1, characterized in that: The inner wall of the funnel tube (11) is provided with a trapezoidal annular groove (12).

6. A distribution valve with a buffer device according to claim 1, characterized in that: A second sealing ring (15) is installed between the distribution valve body (1), the feed cylinder (8), and the cylinder (9).

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