A flow regulating valve spool assembly with a linked pointer mechanism

Abstract

The present application relates to flow regulating valve technical field, specifically to a kind of flow regulating valve valve core assembly with linkage pointer mechanism, comprising: base;Damping mechanism, the damping mechanism includes fixedly connected on the upper end surface of base buffer box, the two sides of the length direction of the buffer box are provided with buffer assembly, the inside linear array between the two buffer assemblies of the buffer box is provided with multiple magnetic resistance components;Vibration damping mechanism, the vibration damping mechanism includes fixedly connected on the upper end surface of base protection box, the two sides of the length direction of the protection box are provided with elastic component. Through magnetic resistance component and buffer assembly in damping mechanism, the buffering of flow regulating valve impacted by water flow is realized, and the rebound force when using magnetic consumption water flow impact force and buffering flow regulating valve is utilized, effectively inhibit the excursion deviation of valve core generated by hydraulic disturbance, guarantee flow indication and flow detection accuracy, while reducing the parts knock abrasion caused by impact, extend the service life of valve core and pointer linkage mechanism.

Description

Technical Field

[0001] This invention relates to the field of flow control valve technology, and more specifically to a flow control valve core assembly with a linkage pointer mechanism. Background Technology

[0002] An existing flow control valve core assembly with a linkage pointer mechanism is a core component for flow control valves to achieve flow regulation and opening degree visualization. The assembly consists of a valve disc, valve stem, sealing gasket, and a pointer transmission component that is rigidly linked to the valve stem. By rotating or raising the valve stem, the valve disc is driven to change the flow cross-sectional area between itself and the valve seat, thereby controlling the flow rate of liquid in the pipeline. The pointer swings synchronously with the change in the stroke of the valve stem, and the real-time opening degree is intuitively fed back by the scale on the outside of the valve body. However, when the liquid flows through the valve port, it is constrained by the throttling of the valve disc, and the sudden change in fluid velocity creates turbulence and alternating hydraulic impact force. The irregular hydraulic load continuously and repeatedly impacts the valve disc end face and valve stem side wall, causing the valve core to move slightly in the radial and axial directions. This causes the fixed pointer transmission mechanism to shake and deviate from the scale reference. This not only wears down the valve core sealing surface over a long period of time, but also causes the pointer reading to jump and become distorted, and the opening calibration to be disordered. Ultimately, this weakens the accuracy of the valve opening reading and the measurement of the associated flow rate. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a flow control valve core assembly with a linkage pointer mechanism, which can effectively solve the problems of turbulence and alternating liquid hammer caused by throttling of liquid through the valve orifice, repeated impact on the valve core causing surging and pointer mechanism deviation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a flow control valve core assembly with a linkage pointer mechanism, comprising: Base; A damping mechanism, comprising a buffer box fixedly connected to the upper end face of a base, buffer components being provided on both sides of the buffer box along its length, and multiple magnetoresistive components being arranged in a linear array inside the buffer box between the two buffer components. The vibration damping mechanism includes a protective box fixedly connected to the upper surface of the base. Elastic components are provided on both sides of the protective box along its length. Elastic tubes are provided on the opposite sides of the two elastic components of the protective box. Multiple vibration damping components and multiple rubber tubes are alternately arranged between the two elastic tubes, and the rubber tubes are located between the two vibration damping components.

[0005] Preferably, the buffer assembly includes a compression chamber fixedly connected to the side of the buffer box, and an elastic chamber fixedly connected to the other side of the compression chamber. The compression chamber and the elastic chamber are interconnected. A piston plate is airtightly slidably connected inside the compression chamber. Multiple multi-section rods are linearly arrayed and fixedly connected to the side of the compression chamber facing the piston plate. The telescopic ends of the multi-section rods are fixedly connected to the side of the piston plate facing the compression chamber. Buffer gas is filled between the inner side of the compression chamber and the opposite surface of the piston plate. Non-Newtonian liquid is filled between the inner side of the elastic chamber and the opposite surface of the piston plate.

[0006] Preferably, the magnetoresistive assembly includes a rotating shaft rotatably connected to the inner walls of both sides of the buffer box in the width direction, and the shafts of the rotating shaft are alternately and linearly arrayed with multiple magnetic columns and multiple spacers.

[0007] Preferably, a flow regulating valve is fixedly connected to the opposite surfaces of the two elastic boxes, the output end of the flow regulating valve is fixedly connected to an output pipe, and an iron plate is fixedly connected to the bottom of the flow regulating valve, and the iron plate is magnetically connected to the magnetic column.

[0008] Preferably, the elastic component includes a protective plate fixedly connected to the side of the protective box, an elastic ring fixedly connected to the center of the protective plate, and an input pipe and a connecting pipe fixedly connected to the two elastic rings on the side away from the protective box, respectively, and the other end of the connecting pipe is connected to the input end of the flow regulating valve.

[0009] Preferably, the elastic tube is fixedly connected to the side of the elastic ring facing the protective box, and the other end of the interconnecting tube is fixedly connected to a rubber tube.

[0010] Preferably, the other end of the vibration damping component has an interconnecting pipe with a honeycomb elastic ring fixedly connected to its outer circumferential surface, a foam ring fixedly connected to its outer circumferential surface, an annular frame fixedly connected to its outer circumferential surface, and an outer ring fixedly connected to the other side of the annular frame, and the outer ring is fixedly connected to the inner walls of the protective box.

[0011] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. The damping mechanism utilizes a magnetic reluctance component and a buffer component to buffer the impact of water flow on the flow regulating valve. The magnetic properties dissipate the impact force of the water flow and the rebound force during buffering of the flow regulating valve. Since the flow regulating valve is located between the two buffer components, flexible installation of the valve is achieved. Therefore, when the flow regulating valve is impacted by water flow, the buffer component buffers the valve, while the magnetic reluctance component uses its magnetism to synchronously counteract the impact and the rebound force of the buffer component. This effectively suppresses the axial movement and deviation of the valve core caused by hydraulic disturbance, stabilizes the indicated position of the linkage pointer, avoids pointer jumps and distortion of opening readings, ensures the accuracy of flow indication and flow detection, and reduces wear and tear on components caused by impact, extending the service life of the valve core and pointer linkage mechanism.

[0012] 2. The vibration damping mechanism utilizes elastic and vibration-damping components to absorb the vibrations caused by the flow rate before the water impact, and to buffer the pressure generated by the subsequent water flow after the impact. The elastic component is used to fix the movement of multiple vibration-damping components and rubber tubes inside the protective box to prevent their movement from affecting the flow regulating valve. The vibration-damping components are used to absorb the water pressure. Therefore, by relying on the cooperation of elastic and vibration-damping components, the vibration damping mechanism can dissipate the fluid vibration caused by flow fluctuations before the water impact arrives. After the impact, it also buffers and unloads the residual water pressure of the subsequent water flow, preventing it from shaking and hitting the flow regulating valve body. The vibration-damping components continuously absorb the water hammer pressure in the pipeline, thereby reducing the alternating impact force transmitted to the valve core assembly, reducing valve core movement and linkage pointer deviation, stabilizing the opening indication value, and improving the accuracy of flow detection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the damping mechanism and flow regulating valve of the present invention; Figure 3 This is a schematic diagram of the damping mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the magnetoresistive component of the present invention; Figure 5 This is a schematic diagram of the structure of the buffer component of the present invention; Figure 6 This is a schematic diagram of the flow regulating valve of the present invention; Figure 7 This is a schematic diagram of the vibration damping mechanism of the present invention; Figure 8 This is a schematic diagram of the internal structure of the protective box of the present invention; Figure 9 This is a schematic diagram of the structure of the elastic component of the present invention; Figure 10 This is a schematic diagram of the structure of the elastic tube and vibration damping component of the present invention; Figure 11 This is a schematic diagram of the vibration damping component of the present invention; Figure 12 This is a schematic diagram of the internal structure of the vibration damping component of the present invention.

[0015] Reference numerals: 1. Base; 2. Damping mechanism; 21. Buffer box; 22. Magnetic reluctance assembly; 221. Rotating shaft; 222. Magnetic column; 223. Partition column; 23. Buffer assembly; 231. Compression box; 232. Elastic box; 233. Multi-section rod; 234. Piston plate; 3. Output pipe; 4. Iron plate; 5. Vibration damping mechanism; 51. Protective box; 52. Elastic assembly; 521. Protective plate; 522. Elastic ring; 53. Connecting pipe; 54. Elastic pipe; 55. Vibration damping assembly; 551. Interconnecting pipe; 552. Honeycomb elastic ring; 553. Foam ring; 554. Ring frame; 555. Outer ring; 56. Rubber tube; 57. Input pipe; 100. Flow regulating valve. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] The present invention will be further described below with reference to embodiments.

[0018] Example: Refer to Figures 1 to 12 A flow control valve core assembly with a linkage pointer mechanism, comprising: Base 1; Damping mechanism 2 includes a buffer box 21 fixedly connected to the upper end face of the base 1. Buffer components 23 are provided on both sides of the buffer box 21 in the length direction. Multiple magnetoresistive components 22 are arranged in a linear array inside the buffer box 21 between the two buffer components 23. The vibration damping mechanism 5 includes a protective box 51 fixedly connected to the upper end face of the base 1. Elastic components 52 are provided on both sides of the protective box 51 along its length. Elastic tubes 54 are provided on the opposite sides of the two elastic components 52. Multiple vibration damping components 55 and multiple rubber tubes 56 are alternately arranged between the two elastic tubes 54, and the rubber tubes 56 are located between the two vibration damping components 55.

[0019] The buffer component 23 is used to achieve the buffering effect, while the magnetic resistance component 22 uses magnetism to achieve further buffering. The elastic component 52, together with the vibration damping component 55 and the rubber tube 56, further consumes energy of the water flow.

[0020] Reference Figure 2 , Figure 5 The buffer assembly 23 includes a compression box 231 fixedly connected to the side of the buffer box 21. An elastic box 232 is fixedly connected to the other side of the compression box 231. The compression box 231 and the elastic box 232 are interconnected. A piston plate 234 is airtightly slidably connected inside the compression box 231. Multiple multi-section rods 233 are linearly arrayed and fixedly connected to the side of the compression box 231 facing the piston plate 234. The telescopic ends of the multi-section rods 233 are fixedly connected to the side of the piston plate 234 facing the compression box 231. The inner side of the compression box 231 and the opposite side of the piston plate 234 are filled with buffer gas. The inner side of the elastic box 232 and the opposite side of the piston plate 234 are filled with non-Newtonian liquid.

[0021] The elastic box 232 is subjected to compression deformation, and the non-Newtonian liquid inside the elastic box 232 is used to achieve a buffering effect. The compression box 231, together with the multi-section rod 233 and the buffer gas, realizes the recovery of the elastic box 232 after compression deformation.

[0022] Reference Figure 2 , Figures 4 to 6 The magnetoresistive assembly 22 includes a rotating shaft 221 rotatably connected to the inner walls of both sides of the buffer box 21 in the width direction. The shafts of the rotating shaft 221 are alternately and linearly arrayed with multiple magnetic columns 222 and multiple spacers 223.

[0023] Two elastic boxes 232 are fixedly connected to opposite faces of a flow regulating valve 100. The output end of the flow regulating valve 100 is fixedly connected to an output pipe 3. An iron plate 4 is fixedly connected to the bottom of the flow regulating valve 100, and the iron plate 4 is magnetically connected to the magnetic column 222.

[0024] Further buffering is achieved by utilizing the magnetism of the magnetic post 222 in the magnetoresistive component 22.

[0025] Reference Figures 7 to 10The elastic component 52 includes a protective plate 521 fixedly connected to the side of the protective box 51. An elastic ring 522 is fixedly connected to the center of the protective plate 521. The two elastic rings 522 are respectively fixedly connected to an input pipe 57 and a connecting pipe 53 on the side away from the protective box 51, and the other end of the connecting pipe 53 is connected to the input end of the flow regulating valve 100.

[0026] The elastic tube 54 is fixedly connected to the side of the elastic ring 522 facing the protective box 51, and the other end of the interconnecting tube 551 is fixedly connected to the rubber tube 56.

[0027] The input pipe 57 and the connecting pipe 53 are fixed by the corresponding elastic rings 522 in the two elastic components 52, thereby providing support for the fixing of the elastic pipe 54, so as to realize the setting of the rubber pipe 56 and the vibration damping component 55 in the protective box 51.

[0028] Reference Figures 10 to 12 The vibration damping component 55 includes an interconnecting pipe 551 fixedly connected to the other end of the elastic tube 54. A honeycomb elastic ring 552 is fixedly connected to the outer circumferential surface of the interconnecting pipe 551. A foam ring 553 is fixedly connected to the outer circumferential surface of the honeycomb elastic ring 552. An annular frame 554 is fixedly connected to the outer circumferential surface of the foam ring 553. An outer ring 555 is fixedly connected to the other side of the annular frame 554, and the outer ring 555 is fixedly connected to the inner walls of the protective box 51.

[0029] The vibration damping assembly 55 utilizes the interconnecting pipe 551, the honeycomb elastic ring 552, and the foam ring 553 to buffer the flowing liquid. The specific operating principle of this embodiment is as follows: The fluid first enters through the inlet pipe 57, flows through the elastic ring 522 of the elastic component 52, and then enters the elastic pipe 54. It then passes sequentially through the vibration damping components 55 and rubber tubes 56 arranged alternately inside the protective box 51. For example, when the water flow in the pipeline is transported at a fluctuating pressure of 0.3–0.6 MPa, the fluid passes through the interconnecting pipe 551 of the vibration damping component 55. The honeycomb elastic ring 552 on the outer periphery of the interconnecting pipe 551 absorbs the vibration energy generated by the water flow pulsation through repeated deformation of the honeycomb pores. The outer foam ring 553 further... To attenuate residual vibration, the ring frame 554 and the outer ring 555 firmly fix the vibration damping component 55 to the inner wall of the protective box 51, preventing vibration from being transmitted outward. At the same time, the rubber tube 56 between adjacent vibration damping components 55 continuously buffers sudden pressure changes by its own flexible expansion and contraction. For example, when the water flow instantaneously increases by 0.2MPa, the rubber tube 56 immediately expands to relieve the pressure, so that the water flow entering the connecting pipe 53 remains stable, thereby reducing the impact on the flow regulating valve 100. The treated water flow enters the flow regulating valve 100 through the connecting pipe 53. In this system, the flow regulating valve 100 is held in the middle of the buffer box 21 by the elastic boxes 232 of the two buffer components 23. The two buffer components 23 together form a fully flexible connection to fix the flow regulating valve 100. Therefore, when the flow regulating valve 100 is impacted by water flow, which squeezes the elastic box 232 facing the connecting pipe 53, the non-Newtonian liquid inside the elastic box 232 is rapidly squeezed. According to the shear thickening principle, the non-Newtonian liquid will harden instantly, thereby increasing the resistance to directly absorb most of the impact energy. The pressurized non-Newtonian liquid will further push the piston plate 234 to slide airtightly inside the compression box 231. At this time, the piston plate 234 simultaneously compresses the multi-section rod 233 and the buffer gas inside the compression box 231. The buffer gas provides reverse support by relying on the gas elastic damping principle to avoid impact overload. Meanwhile, the buffer assembly 23 on the other side away from the connecting pipe 53 is pulled by the flow regulating valve 100. Its elastic box 232 is stretched and kept in a slightly expanded state. The non-Newtonian liquid and the buffer gas inside form a reverse constraint force, which limits and restrains the displacement of the flow regulating valve 100, preventing the flow regulating valve 100 from shifting excessively to the connecting pipe 53 side. Since the flow regulating valve 100 is held by the elastic boxes 232 of the two buffer assemblies 23, a flexible fixed installation method without rigid connection and hard contact is achieved inside the buffer box 21. The two buffer assemblies 23 work together with one pressing and the other pulling. When the impact disappears, the buffer gas in the two buffer assemblies 23 and the multi-section rod 233 reset synchronously, pushing the piston plate 234 back to its original position and pressing the non-Newtonian liquid back into the elastic box 232, so that the flow regulating valve 100 smoothly returns to the initial center position of the buffer box 21, avoiding valve core movement, rebound shaking and linkage pointer jumping distortion.

[0030] In this system, the bottom of the flow regulating valve 100 is fixed with an iron plate 4, and the iron plate 4 is magnetically attracted to the magnetic column 222 of the magnetic reluctance assembly 22. The magnetic column 222 in the magnetic reluctance assembly 22 is fixedly connected to the rotating shaft 221. The rotating shaft 221 is installed on the inner walls of both sides of the buffer box 21 through a rotatable fit, and can rotate freely but cannot move radially or axially. When the flow regulating valve 100 is impacted by water flow, it will synchronously drive the bottom iron plate 4 to move together. The iron plate 4 and the magnetic column 222 always maintain a stable magnetic attraction. Therefore, the movement of the iron plate 4 will directly drive the magnetic column 222 to generate a follow-up tendency. The magnetic column 222 then transmits the motion to the rotating shaft 221 fixed to it, so that the rotating shaft 221 rotates adaptively around its own axis. During this process, the magnetic attraction between the magnetic column 222 and the iron plate 4 will form a continuous magnetic damping effect. By utilizing the principle of magnetic damping, the impact kinetic energy, surging kinetic energy and rebound energy generated when the buffer component 23 is reset of the flow regulating valve 100 are gradually converted into energy loss, thereby effectively reducing the sway amplitude and rebound speed of the flow regulating valve 100. At the same time, the free rotation of the shaft 221 can ensure that the magnetic attraction between the magnetic column 222 and the iron plate 4 always acts uniformly, without jamming, jamming or rigid impact. In addition, the buffer component 23 can achieve dual stability constraint on the flow regulating valve 100, so that the flow regulating valve 100 can quickly return to stability and avoid the situation where the valve core surging causes the linkage pointer to jump and the opening indication to be distorted.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flow control valve core assembly with a linkage pointer mechanism, characterized in that, include: Base (1); The damping mechanism (2) includes a buffer box (21) fixedly connected to the upper end face of the base (1). Buffer components (23) are provided on both sides of the buffer box (21) in the length direction. Multiple magnetoresistive components (22) are arranged in a linear array inside the buffer box (21) between the two buffer components (23). The vibration damping mechanism (5) includes a protective box (51) fixedly connected to the upper end face of the base (1). Elastic components (52) are provided on both sides of the protective box (51) along its length. Elastic tubes (54) are provided on the opposite sides of the two elastic components (52) of the protective box (51). Multiple vibration damping components (55) and multiple rubber tubes (56) are alternately arranged between the two elastic tubes (54), and the rubber tubes (56) are located between the two vibration damping components (55).

2. The valve core assembly of a flow regulating valve with a linkage pointer mechanism according to claim 1, characterized in that, The buffer assembly (23) includes a compression box (231) fixedly connected to the side of the buffer box (21). An elastic box (232) is fixedly connected to the other side of the compression box (231). The compression box (231) and the elastic box (232) are interconnected. A piston plate (234) is airtightly slidably connected inside the compression box (231). Multiple multi-section rods (233) are linearly arrayed and fixedly connected to the side of the compression box (231) facing the piston plate (234). The telescopic ends of the multi-section rods (233) are fixedly connected to the side of the piston plate (234) facing the compression box (231). The inner side of the compression box (231) and the opposite side of the piston plate (234) are filled with buffer gas. The inner side of the elastic box (232) and the opposite side of the piston plate (234) are filled with non-Newtonian liquid.

3. The valve core assembly of a flow regulating valve with a linkage pointer mechanism according to claim 1, characterized in that, The magnetoresistive assembly (22) includes a rotating shaft (221) rotatably connected to the inner walls of both sides of the buffer box (21) in the width direction. The shafts of the rotating shaft (221) are alternately and linearly arrayed with multiple magnetic columns (222) and multiple spacers (223).

4. A flow regulating valve core assembly with a linkage pointer mechanism according to claim 2, characterized in that, Two elastic boxes (232) are fixedly connected to a flow regulating valve (100) on opposite sides. The output end of the flow regulating valve (100) is fixedly connected to an output pipe (3). An iron plate (4) is fixedly connected to the bottom of the flow regulating valve (100), and the iron plate (4) is magnetically connected to the magnetic column (222).

5. A flow regulating valve core assembly with a linkage pointer mechanism according to claim 1, characterized in that, The elastic component (52) includes a protective plate (521) fixedly connected to the side of the protective box (51). An elastic ring (522) is fixedly connected to the center of the protective plate (521). An input pipe (57) and a connecting pipe (53) are fixedly connected to the side of the two elastic rings (522) away from the protective box (51), respectively. The other end of the connecting pipe (53) is connected to the input end of the flow regulating valve (100).

6. A flow regulating valve core assembly with a linkage pointer mechanism according to claim 1, characterized in that, The elastic tube (54) is fixedly connected to the side of the elastic ring (522) facing the protective box (51), and the other end of the interconnecting tube (551) is fixedly connected to a rubber tube (56).

7. A flow regulating valve core assembly with a linkage pointer mechanism according to claim 1, characterized in that, The vibration damping component (55) includes an interconnecting pipe (551) fixedly connected to the other end of the elastic tube (54). A honeycomb elastic ring (552) is fixedly connected to the outer circumferential surface of the interconnecting pipe (551). A foam ring (553) is fixedly connected to the outer circumferential surface of the honeycomb elastic ring (552). A ring frame (554) is fixedly connected to the outer circumferential surface of the foam ring (553). An outer ring (555) is fixedly connected to the other side of the ring frame (554), and the outer ring (555) is fixedly connected to the inner walls of the protective box (51).

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