A noise reduction and shock absorption structure of a valve core

Abstract

The utility model relates to the technical field of air valve moving core, and disclose a kind of air valve moving core noise reduction and shock absorbing structure, comprising: by valve body upper cover, valve body lower cover and fastening iron sheet are formed by cover top screw assembly valve body assembly, fastening iron sheet below is connected with the winding support frame of copper wire coil, and winding support frame outside installs valve body iron frame and the both inside is provided with dentate air outlet groove, valve body upper cover and valve body lower cover between setting upper and lower cover sealing ring, its center is connected valve body moving core by silica gel sealing cap, reset spring is set on valve body moving core surface, bottom is connected buffer washer and valve body fixed core in proper order, and muscle strip structure is equipped on buffer washer surface, and muscle strip buffer washer absorbs moving core impact energy, dentate air outlet groove discrete airflow and guide gas directional impact heat dissipation, cooperate rigid riveting and maintain assembly accuracy, double sealing assembly prevents air pressure fluctuation, realize vibration suppression and temperature rise control.

Description

Technical Field

[0001] This utility model relates to the field of air valve moving core technology, specifically to an air valve moving core noise reduction and vibration reduction structure. Background Technology

[0002] The valve actuator, as the core actuator of a pneumatic control system, directly affects the fluid control accuracy and system stability. The valve actuator is the moving part in the valve that directly controls the on / off state or flow rate of the medium. After the valve body becomes conductive, it generates a magnetic field. This magnetic field attracts the actuator, causing it to move instantaneously towards the center of the coil and strike the buffer pad (connected to the fixed core), thus achieving the air path switching function; achieving air path direction control: switching the flow path in a directional valve to switch the direction of medium flow; pressure regulation: working with a spring or pilot structure to maintain stable system pressure. Applications of the valve actuator include: industrial automation, automotive manufacturing, health products, medical products, home products, and special fields.

[0003] Traditional valve core buffer structures often use sheet-like gaskets, which are thin and have limited deformation capacity. The mechanical impact generated during high-frequency opening and closing of the valve core easily leads to significant vibration and noise. Long-term use can cause accelerated wear of components. The gas pressure relief channel design is simple, and the concentrated airflow impacts the valve body components during exhaust, producing a harsh noise. The ineffective airflow dispersion leads to heat accumulation, causing a significant temperature rise in the coil and iron shell, affecting electromagnetic drive efficiency and component lifespan. The lack of coordinated design between the sealing structure and noise reduction measures makes it difficult for the product to meet the requirements of quiet operation and thermal management while fulfilling basic functions. To address this, a noise and vibration reduction structure for the valve core is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a noise reduction and vibration damping structure for a pneumatic valve moving core. This structure solves the problem of excessive resonance and start-up impact noise caused by product vibration transmission due to issues with the product's shock-absorbing buffer sheet. It also addresses the technical problem of heat accumulation caused by ineffective airflow dispersion, which leads to significant temperature rise in the coil and iron shell, affecting electromagnetic drive efficiency and component lifespan.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a noise and vibration reduction structure for a pneumatic valve moving core, comprising:

[0008] The valve body has an upper cover and a lower cover located on the lower surface of the upper cover. A fastening iron plate is added to the lower surface of the lower cover. A cap screw is connected between the upper cover and the lower cover and the fastening iron plate. A winding support frame is connected to the lower surface of the fastening iron plate. A copper wire coil is connected to the surface of the winding support frame. A valve body iron frame is installed on the outside of the winding support frame. Air outlet grooves are opened on the inner sides of both the winding support frame and the valve body iron frame.

[0009] The upper and lower cover sealing rings are located at the center of the upper cover and the lower cover of the valve body, and a silicone sealing cap is added at the center of the upper and lower cover sealing rings, and the valve body moving core is connected to the bottom of the silicone sealing cap.

[0010] A return spring is sleeved on the lower part of the surface of the moving core of the valve body, and the bottom of the moving core of the valve body is connected to the fixed core of the valve body. A buffer pad is added between the moving core of the valve body and the fixed core of the valve body, and a buffer rib is provided on the upper surface of the buffer pad. The riveting of the valve body iron frame and the fixed core of the valve body is in a fixed state. Gas enters the valve body through the channel between the upper and lower covers. The sealing rings of the upper and lower covers, along with the silicone sealing cap, form a double-sealing structure to prevent gas leakage and maintain stable internal pressure. The silicone sealing cap undergoes slight deformation under gas pressure. When the copper wire coil is energized, the winding support frame and the valve body iron frame form an electromagnetic circuit, generating an axial magnetic field. This magnetic field creates an electromagnetic attraction force on the valve body moving core, driving it to overcome the preload of the return spring and generate axial displacement. It can also compress the return spring downwards, bringing it into contact with the valve body stationary core. At this time, the multi-ringed ribs on the upper surface of the buffer pad absorb the impact energy of the moving core through controllable deformation, converting rigid impact into gradual buffering and suppressing vibration transmission. The return spring provides a reverse force during the movement of the moving core. When the copper wire coil is de-energized, the return spring, according to the preset power-off delay on the circuit board... The time parameter stores elastic potential energy, which is released after the delay to drive the valve body moving core to return to its axial position. The moving core returns smoothly through a controllable spring force release rate, avoiding transient impact noise. The gas is discharged through the toothed outlet groove on the inner side of the valve body iron frame and the winding support frame. The toothed structure of the outlet groove disperses the continuous airflow into irregular pulsating flow, destroying the airflow resonance condition and reducing the turbulence intensity, directly reducing aerodynamic noise radiation. The discharged gas impacts the valve body iron frame and the surface of the copper wire coil at a specific angle. The heat of the coil and ferromagnetic components is quickly discharged through forced convection heat transfer, avoiding local temperature rise accumulation. The riveting structure fixes the valve body iron frame and fastening iron plate at the same time, maintaining the overall assembly accuracy and preventing additional noise caused by structural displacement during dynamic operation. At the same time, this structure can be practically applied to multi-valve products with more than one unit, making it a multi-valve universal.

[0011] Preferably, the inner cavities of the upper and lower valve body covers and the upper surface of the lower valve body cover are all provided with through holes. The screw holes and the screws on the top of the cover clamp the upper and lower valve body covers vertically to the surface of the fastening iron plate, forming a rigid assembly.

[0012] Preferably, the outer surface of the cap screw is provided with external threads, and the cap screw fixes the upper cover and the lower cover of the valve body to the lower cover of the valve body through the screw hole. The cap screw passes through the screw hole of the upper cover and the lower cover of the valve body, and its external thread engages with the internal thread of the screw hole. Through the rotation action, the axial preload is transmitted to the fastening iron plate, so that the upper cover, the lower cover of the valve body and the fastening iron plate form a sandwich-like sandwich structure.

[0013] Preferably, the two ends of the return spring are tightly fitted to the outer surface of the moving core of the valve body and the fixed core of the valve body, respectively. The return spring forms a gapless contact with the moving core and the fixed core of the valve body through end-face friction. When the power is off, the electromagnetic attraction disappears, and the elastic potential energy stored in the return spring is converted into axial thrust through end-face friction constraint, driving the moving core of the valve body to return to its original position at a controllable rate.

[0014] Preferably, the winding support frame has an overall "I" shape design, and the lower surface of the winding support frame is connected to the bottom of the inner cavity of the valve body iron frame. The "I" shape structure restricts the axial movement of the copper wire coil through the upper and lower flanges, the central column guides the winding path of the coil, and after the lower surface is connected to the bottom of the valve body iron frame, it forms part of a closed magnetic circuit.

[0015] Preferably, a protective shell is added to the outside of the copper wire coil, and the ribs on the buffer pad are arranged in a ring, with the ribs inclined on the buffer pad. The protective shell prevents friction damage between the copper wire coil and external components through physical isolation.

[0016] Preferably, the ribs on the buffer pad are arranged in a radial pattern.

[0017] Preferably, the ribs on the buffer pad are arranged in a V-shape. When the valve body moving core is impacted, the ribs on the buffer pad undergo radial compression, and the tilt angle causes the ribs to deform synchronously along the axial and radial directions, thus dispersing the impact energy.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a noise reduction and vibration damping structure for a pneumatic valve moving core, which has the following beneficial effects:

[0020] This valve's moving core noise reduction and vibration damping structure achieves noise reduction and temperature rise control through the coordinated action of multiple components: its buffer gasket adopts a rib design, which absorbs impact energy through controllable deformation during the reciprocating motion of the valve body's moving core, transforming rigid impact into gradual buffering, effectively suppressing the vibration transmission path, while maintaining the integrity of the sealing structure and avoiding seal failure due to excessive softening. The toothed layout of the outlet groove forms a multi-path diversion for the discharged gas, using the groove tooth structure to discretize the continuous airflow into irregular pulsating flow, destroying resonance conditions and reducing turbulence intensity, directly reducing aerodynamic noise radiation. After being directionally guided by the toothed channel, the valve body iron frame and copper wire coil surface are impacted at a specific angle, which significantly improves the forced convection heat transfer efficiency. This allows the heat from the coil winding and ferromagnetic components to be quickly dissipated through gas flow, avoiding local temperature rise accumulation and ensuring electromagnetic drive efficiency and component lifespan. The overall structure adopts a rigid riveting fixing method to prevent additional noise caused by structural displacement under dynamic operation. The sealing component is protected by a silicone sealing cap and upper and lower cover sealing rings, which isolate external interference while preventing micro-leakage caused by internal pressure fluctuations and maintaining air pressure stability to suppress abnormal vibration sources. Attached Figure Description

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

[0022] Figure 2 This is a schematic diagram of the overall separable structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the novel buffer pad structure in Embodiment 1 of this utility model;

[0024] Figure 4 This is a cross-sectional view of the buffer pad in Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the novel buffer pad structure in Embodiment 2 of this utility model;

[0026] Figure 6 This is a schematic diagram of the novel buffer pad structure in Embodiment 3 of this utility model.

[0027] In the diagram: 1. Top cap screw; 2. Valve body top cover; 3. Upper and lower cover sealing rings; 4. Silicone sealing cap; 5. Valve body bottom cover; 6. Fastening iron plate; 7. Valve body moving core; 8. Return spring; 9. Winding support frame; 10. Buffer pad; 11. Valve body stationary core; 12. Valve body iron frame; 13. Copper wire coil. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] This utility model provides a technical solution: a noise and vibration reduction structure for a pneumatic valve moving core, including: (Please refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 The valve body upper cover 2 and the valve body lower cover 5 are provided on the lower surface of the valve body upper cover 2. The lower surface of the valve body lower cover 5 is provided with a fastening iron plate 6. The valve body upper cover 2 and the valve body lower cover 5 are connected to the fastening iron plate 6 with a cap screw 1. A winding support frame 9 is connected to the lower surface of the fastening iron plate 6. A copper wire coil 13 is connected to the surface of the winding support frame 9. A valve body iron frame 12 is installed on the outside of the winding support frame 9. An air outlet groove is opened on the inner side of both the winding support frame 9 and the valve body iron frame 12.

[0031] The upper and lower cover sealing rings 3 are set at the center of the upper cover 2 and the lower cover 5 of the valve body, and a silicone sealing cap 4 is added at the center of the upper and lower cover sealing rings 3, and the valve body moving core 7 is connected to the bottom of the silicone sealing cap 4.

[0032] The return spring 8 is sleeved on the lower part of the surface of the valve body moving core 7, and the bottom of the valve body moving core 7 is connected to the valve body fixed core 11. A buffer pad 10 is added between the valve body moving core 7 and the valve body fixed core 11, and the upper surface of the buffer pad 10 is provided with ribs. The riveting of the valve body iron frame 12 and the valve body fixed core 11 is in a fixed state. Gas enters the valve body through the channel between the upper cover 2 and the lower cover 5. The upper and lower cover sealing rings 3 and the silicone sealing cap 4 form a double sealing structure to prevent gas leakage and maintain stable internal pressure. The silicone sealing cap 4 undergoes slight deformation under gas pressure. When the copper wire coil 13 is energized, the winding support frame 9 and the valve body iron frame 12 form an electromagnetic circuit to generate an axial magnetic field. This magnetic field forms an electromagnetic attraction force on the valve body moving core 7, driving the valve body moving core 7 to overcome the preload force of the return spring 8 and generate axial displacement. It can also compress the return spring 8 downward and contact the valve body fixed core 11. At this time, the multi-ring ribs on the upper surface of the buffer pad 10 absorb the valve body moving core through controllable deformation. The impact energy of core 7 transforms rigid impact into gradual buffering, suppressing vibration transmission. The return spring 8 provides a reverse force during the movement of the valve body moving core 7. When the copper wire coil 13 is de-energized, the return spring 8 stores elastic potential energy according to the preset power-off delay parameters on the circuit board. After the delay, it releases the stored energy to drive the valve body moving core 7 to axially reset. The controllable spring force release rate ensures a smooth return of the valve body moving core 7, avoiding transient impact noise. Gas is discharged through the toothed outlet grooves on the inner side of the winding support frame 9 and the valve body iron frame 12. The toothed structure of the outlet grooves discretizes the continuous airflow into irregular pulsating flow, disrupting airflow resonance conditions and reducing turbulence intensity. Directly reducing aerodynamic noise radiation, the exhaust gas impacts the valve body iron frame 12 and copper wire coil 13 at a specific angle. Forced convection heat transfer rapidly dissipates heat from the coil and ferromagnetic components, preventing localized temperature accumulation. The riveting structure simultaneously secures the valve body iron frame 12 and the fastening iron plate 6, maintaining overall assembly accuracy and preventing additional noise caused by structural misalignment during dynamic operation. The multi-ringed ribs of the buffer gasket 10 absorb the impact energy of the valve body moving core 7 through deformation, improving vibration attenuation efficiency compared to traditional sheet gaskets without affecting sealing performance. The toothed exhaust groove discretizes the airflow, reducing measured noise radiation intensity, especially showing significant noise reduction in the mid-to-high frequency range. The outgoing gas directly impacts the valve body iron frame 12 and copper wire coil 13, and the forced convection heat transfer reduces the temperature rise of the coil, extending the coil's service life. The riveting fixing method between the valve body iron frame 12 and the valve body core 11 maintains the continuity of the magnetic circuit under vibration conditions, reduces the magnetic resistance fluctuation amplitude, and improves the stability of electromagnetic performance. The double sealing structure of the silicone sealing cap 4 and the upper and lower cover sealing rings 3 can still prevent micro-leakage under gas pressure fluctuation environment, improves the measured gas pressure stability, and suppresses abnormal vibration caused by pressure change. The return spring 8 and the buffer pad 10 work together to shorten the reciprocating motion cycle of the valve body moving core 7, improve the response speed, and adapt to high-frequency switching conditions.

[0033] Please see Figure 2 , Figure 3 and Figure 4 Both the upper valve body cover 2 and the lower valve body cover 5 have through holes in their inner cavities and on the upper surface of the lower valve body cover 5. The screw holes and the cap screw 1 work together to vertically press the upper valve body cover 2 and the lower valve body cover 5 onto the surface of the fastening iron plate 6, forming a rigid assembly. The threaded connection allows for detachable fixing, facilitating later maintenance and component replacement. The meshing accuracy of the internal and external threads ensures uniform stress distribution on the assembly surface, preventing cover deformation due to localized stress concentration. The outer surface of the cap screw 1 has external threads, and the cap screw 1 fixes the upper valve body cover 2 and the lower valve body cover 5 onto the lower valve body cover 5 through the screw holes. The top screw 1 passes through the screw holes of the upper valve body cover 2 and the lower valve body cover 5. Its external thread engages with the internal thread of the screw hole. Through rotation, it transmits the axial preload to the fastening iron plate 6, forming a sandwich-like structure with the upper valve body cover 2, the lower valve body cover 5, and the fastening iron plate 6. This three-point fixing layout enhances the overall structural torsional rigidity and suppresses loosening of the connection under high-frequency vibration. The screw hole position design takes into account both the airtightness of the valve body and the assembly operation space, avoiding tool interference. The two ends of the return spring 8 are tightly fitted to the outer surface of the valve body moving core 7 and the valve body fixed core 11, respectively. The return spring 8 forms a gapless contact with the valve body moving core 7 and the valve body fixed core 11 through end-face friction. When the power is off, the electromagnetic attraction disappears, and the elastic potential energy stored in the return spring 8 is converted into axial thrust through end-face friction constraint, driving the valve body moving core 7 to return at a controllable rate. The winding support frame 9 has an overall "I" shape design, and the lower surface of the winding support frame 9 is connected to the bottom of the inner cavity of the valve body iron frame 12. The "I"-shaped structure restricts the axial movement of the copper wire coil 13 through the upper and lower flanges, while the central column guides the coil winding path. The lower surface connects to the bottom of the valve body iron frame 12, forming part of a closed magnetic circuit. The "I"-shaped cross-section enhances bending stiffness, preventing deformation of the copper wire coil 13 due to vibration. A protective shell is added to the outside of the copper wire coil 13, and the ribs on the buffer pad 10 are arranged in a ring, with the ribs angled on the buffer pad 10. The protective shell physically isolates the copper wire coil 13 from frictional damage to external components. When the valve body moving core 7 impacts, the ring-shaped ribs of the buffer pad 10 undergo radial compression. The tilt angle causes the ribs to deform synchronously along the axial and radial directions, dispersing impact energy. The protective shell extends the service life of the copper wire coil 13 and reduces the risk of insulation failure. Compared to a straight rib design, the tilted ribs improve impact energy absorption and reduce residual deformation, maintaining long-term buffering performance.

[0034] Example 2

[0035] Please see Figure 5 The difference between this embodiment and Embodiment 1 is that the ribs on the surface of the buffer pad 10 are arranged in a radial pattern.

[0036] Example 3

[0037] Please see Figure 6The difference between this embodiment and other embodiments is that the ribs on the surface of the buffer pad 10 are arranged in a V-shape.

[0038] This solution only shows three different rib arrangement patterns. The actual rib patterns used in practice include, but are not limited to, these three.

[0039] In this design, gas enters the valve body through the channel between the upper cover 2 and the lower cover 5. The upper and lower cover sealing rings 3 and the silicone sealing cap 4 form a double sealing structure to prevent gas leakage and maintain stable internal pressure. When the copper wire coil 13 is energized, it forms a closed magnetic circuit with the valve body iron frame 12, generating an axial electromagnetic attraction force to drive the valve body moving core 7 to break through the preload of the return spring 8 and generate axial displacement. This displacement process is compensated for by the elastic deformation of the silicone sealing cap 4 to ensure the smooth movement of the moving core.

[0040] Under the drive of electromagnetic attraction, the valve body moving core 7 compresses the return spring 8 downward and contacts the valve body fixed core 11. The multi-ring, radial, or V-shaped ribs on the upper surface of the buffer pad 10 absorb the impact energy of the valve body moving core 7 through controllable deformation, transforming rigid impact into progressive buffering and suppressing vibration transmission. The return spring 8 provides dynamic reverse force throughout the movement of the valve body moving core 7. When the copper wire coil 13 is de-energized, the return spring 8 gradually releases the stored elastic potential energy according to the preset delay parameters, driving the valve body moving core 7 to axially reset at a controllable rate.

[0041] The gas is discharged through the toothed outlet groove inside the winding support frame 9 and the valve body iron frame 12. The toothed structure of the outlet groove disperses the continuous airflow into irregular pulsating flow, destroys the airflow resonance condition and reduces the turbulence intensity, directly reducing aerodynamic noise radiation. The discharged gas impacts the surface of the valve body iron frame 12 and the copper wire coil 13 at a specific angle, and the heat of the coil and ferromagnetic components is quickly discharged through forced convection heat transfer, avoiding local temperature rise accumulation.

[0042] The valve body iron frame 12 and the valve body core 11 are riveted together to form a rigid magnetic circuit, ensuring that the magnetic flux is continuously transmitted along the riveting interface and reducing hysteresis loss. The riveting structure also fixes the valve body iron frame 12 and the fastening iron plate 6, maintaining the overall assembly accuracy and preventing additional noise caused by structural displacement during dynamic operation. The top screw 1 forms a sandwich structure with the valve body upper cover 2, valve body lower cover 5 and fastening iron plate 6 through the internal thread of the screw hole, which improves the overall torsional stiffness and suppresses connection loosening under high frequency vibration.

[0043] The dual sealing structure of the silicone sealing cap 4 and the upper and lower cover sealing rings 3 can still prevent micro-leakage under air pressure fluctuation environment, improve the measured air pressure stability, suppress abnormal vibration caused by pressure change, and the return spring 8 and the buffer pad 10 work together to shorten the reciprocating motion cycle of the valve body moving core 7, improve the response speed, and adapt to high frequency switching conditions.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction and vibration damping structure for a pneumatic valve moving core, characterized in that, include: A valve body upper cover (2) and a valve body lower cover (5) provided on the lower surface of the valve body upper cover (2), and a fastening iron plate (6) is added to the lower surface of the valve body lower cover (5), and a cover screw (1) is connected between the valve body upper cover (2) and the valve body lower cover (5) and the fastening iron plate (6), and a winding support frame (9) is connected to the lower surface of the fastening iron plate (6), and a copper wire coil (13) is connected to the surface of the winding support frame (9), and a valve body iron frame (12) is installed on the outside of the winding support frame (9), and an air outlet groove is opened on the inner side of both the winding support frame (9) and the valve body iron frame (12); The upper and lower cover sealing rings (3) are set at the center of the upper cover (2) and the lower cover (5) of the valve body, and a silicone sealing cap (4) is added at the center of the upper and lower cover sealing rings (3). The upper cover (2) and the lower cover (5) of the valve body are provided with sealing ports on the mating surfaces of the silicone sealing cap (4). A valve body moving core (7) is connected to the bottom of the silicone sealing cap (4), and the valve body moving core (7) passes through the middle sealing port of the lower cover (5) of the valve body and is anti-detached from the silicone sealing cap (4) by snapping it inward. A return spring (8) is sleeved on the lower part of the surface of the valve body moving core (7), and the bottom of the valve body moving core (7) is connected to the valve body fixed core (11). A buffer pad (10) is provided between the valve body moving core (7) and the valve body fixed core (11), and the upper surface of the buffer pad (10) is provided with ribs. The riveting of the valve body iron frame (12) and the valve body fixed core (11) is in a fixed state.

2. The noise reduction and shock absorption structure of a valve poppet according to claim 1, characterized in that: Through holes are provided in the inner cavity of the upper cover (2) and the lower cover (5) of the valve body, as well as on the upper surface of the lower cover (5).

3. The noise reduction and shock absorption structure of a valve poppet according to claim 1, characterized in that: The outer surface of the top screw (1) is provided with external threads, and the top screw (1) fixes the upper cover (2) of the valve body and the lower cover (5) of the valve body to the lower cover (5) of the valve body through the screw hole.

4. The noise reduction and shock absorption structure of a valve poppet according to claim 1, characterized in that: The two ends of the return spring (8) are tightly fitted to the outer surface of the moving core (7) of the valve body and the fixed core (11) of the valve body, respectively.

5. The noise reduction and vibration reduction structure of a valve poppet according to claim 1, characterized in that: The winding support frame (9) is designed in the shape of an "I", and the lower surface of the winding support frame (9) is connected to the bottom of the inner cavity of the valve body iron frame (12).

6. The noise reduction and vibration reduction structure of a valve poppet according to claim 1, characterized in that: A protective shell is added to the outside of the copper wire coil (13), and the ribs are inclinedly arranged on the buffer pad (10).

7. The noise reduction and vibration reduction structure of a valve poppet according to claim 1, characterized in that: The ribs on the buffer pad (10) are arranged in a ring.

8. The noise reduction and vibration reduction structure of a valve poppet according to claim 1, characterized in that: The ribs on the buffer pad (10) are arranged in a radial pattern.

9. The noise reduction and vibration damping structure for a pneumatic valve moving core according to claim 1, characterized in that: The ribs on the buffer pad (10) are arranged in a V-shape.

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