Noise reduction and sound insulation chassis for air compressor

Abstract

The present invention discloses an air compressor noise reduction and sound insulation chassis, which relates to the technical fields of air compression, heat exchange and sound insulation, and comprises an air compressor body with a cylindrical shaft structure, one side outer wall of the air compressor body is fixedly connected with a shell for isolating internal noise and vibration, the top outer wall of the air compressor body close to the shell is fixedly connected with a compressor responsible for compressing air to a required pressure, the side outer wall of the air compressor body away from the compressor is fixedly connected with an engine for providing power to drive the compressor to work, the upper end of the engine is provided with a sound and heat diffusion mechanism, the one side outer wall of the engine is provided with a filling vibration absorption mechanism, and the side of the engine close to the shell is provided with a sound wave curve mechanism, and the sound and heat diffusion mechanism can guide the scattered sound waves to a specific sound absorption area by using a shielding cover and an arc plate to cooperate with each other, so that the sound waves are repeatedly reflected and attenuated, thereby further reducing noise.

Description

Technical Field

[0001] The invention relates to the technical fields of air compression, heat exchange and sound insulation, and in particular to a noise reduction and sound insulation chassis for an air compressor. Background Art

[0002] With the increasing demand for compressed air in industrial production, air compressors are widely used as core equipment in many fields such as manufacturing, medical treatment, and chemical industry. However, the high-decibel noise generated by air compressors during operation has become an important source of pollution in the industrial environment, seriously affecting the comfort of the working environment and the health of operators. According to research, air compressor noise mainly comes from mechanical vibration, air flow pulsation and motor operation. Some of the noise intensity can reach more than 85 decibels, far exceeding the noise standards allowed in industrial sites. Traditional noise reduction methods, such as soundproof walls and sound-absorbing panels, can reduce noise to a certain extent, but cannot completely solve the problem of multi-source noise superposition during air compressor operation. For this reason, the research and development of efficient noise reduction equipment has become the focus of the industry. Among them, the air compressor noise reduction and soundproofing chassis, as a comprehensive noise reduction device, has become an important achievement in the development of noise reduction technology due to its excellent sound insulation effect, convenient installation method and ability to adapt to various working conditions; There are still the following defects in specific use: 1. After the noise leaks, it will spread to a larger area, causing the noise pollution in the industrial site and the surrounding environment to increase. Secondly, long-term exposure to high-intensity noise will cause hearing loss, tinnitus, and even permanent hearing damage. Noise may also cause increased psychological stress, headaches, insomnia and other health problems. At the same time, the absorbed noise is usually accompanied by the vibration of the equipment, which will accelerate the wear of equipment components and shorten their service life in long-term operation.

[0003] 2. Furthermore, when sound is superimposed, even if a single sound source is not loud, the superposition of multiple noises will significantly increase the overall sound level. For example, the superposition of two similar noise sources will increase by 3 decibels, and the superposition of multiple noise sources may lead to a greater increase in sound levels, and the superposition of noise may exceed the safe noise limit (usually 85 dB), causing more serious pollution to the workplace or living environment.

[0004] In view of this, the present invention proposes a noise reduction and sound insulation case for an air compressor to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a noise reduction and sound insulation chassis for an air compressor to solve the technical problems raised in the above background technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an air compressor noise reduction and sound insulation chassis, including an air compressor body with a cylindrical shaft structure, a shell for isolating internal noise and vibration is fixedly connected to one side outer wall of the air compressor body, a compressor for compressing air to a required pressure is fixedly connected to the top outer wall of the air compressor body close to the shell, an engine for providing power to drive the compressor is fixedly connected to the side outer wall of the air compressor body away from the compressor, a sound insulation window for effectively blocking the noise generated by the air compressor body during operation and propagating outward is fixedly connected to the side outer wall of the air compressor body close to the shell, a sound and heat diffusion mechanism is arranged at the upper end of the engine, a filling vibration absorption mechanism is arranged on one side outer wall of the engine, and a sound wave curve mechanism is arranged on the side of the engine close to the shell; The acoustic and thermal diffusion mechanism is used to guide the scattered sound waves to a specific sound absorption area; The filling vibration absorbing mechanism is used to absorb and dissipate the mechanical vibration generated by the operation of the air compressor body; The sound wave curve mechanism is used to increase the time and number of sound wave absorption by extending the sound wave propagation path.

[0007] Furthermore, the sound and heat diffusion mechanism includes a driving shaft passing through and fixedly connected to the top surface of the shell, the outer wall of the driving shaft at one end away from the shell is fixedly connected to an arc plate, the top outer wall of the arc plate is rotatably connected to an arc rod, and multiple arc rods are symmetrically arranged around the central axis of the arc plate, multiple arc rods are fixedly connected to trapezoidal blocks on their ends away from the arc plate, multiple trapezoidal blocks are provided with square plates on their sides away from the arc rods, multiple trapezoidal blocks are fixedly connected to shielding covers on their ends away from the arc rods, and multiple shielding covers are fixedly connected to bow plates on their ends close to the trapezoidal blocks.

[0008] Furthermore, the output end of the drive shaft away from the shell is externally connected to a reduction motor, a plurality of arc rods are distributed in a ring shape at the four corners of the top of the arc plate, and the ends of the plurality of square plates away from the trapezoidal blocks are fixedly connected to the lower inner surface of the shell.

[0009] Furthermore, a plurality of the square plates are provided with square through grooves inside, a plurality of the trapezoidal blocks are slidably connected to the square through grooves inside the square plates, the interior of the shielding cover is in a cavity shape, and one of the arched plates is provided with teeth at the bottom end on a side away from the trapezoidal block.

[0010] Furthermore, the filling vibration absorption mechanism includes a support rod fixedly connected to the inner wall of the bottom end of one side of the shell, the support rod end away from the shell is fixedly connected to a friction plate, the outer wall of the friction plate away from the support rod is provided with a placement arc plate, a side of the placement arc plate away from the friction plate is fixedly connected with a plurality of sound insulation cottons, the inner wall of the end of the placement arc plate away from the friction plate is rotatably connected to a rotating block, the inner wall of the end of the placement arc plate away from the rotating block is rotatably connected to a rotating rod, the outer wall of the end of the rotation rod away from the placement arc plate is rotatably connected to a ring gear, the outer wall of the end of the rotation rod away from the placement arc plate is fixedly connected to a torsion spring, and the outer wall of the end of the torsion spring away from the rotating block is fixedly connected to an inclined block.

[0011] Furthermore, a smooth curved surface is provided on the outer wall of the friction plate away from the support rod, the placement arc plate is slidably connected to the outer wall of the friction plate, the placement arc plate is made of aluminum alloy, and the sound insulation cotton is made of polyester fiber.

[0012] Furthermore, a cavity is opened inside the arc plate, and a plurality of the sound insulation cottons are evenly filled in the cavity opened inside the arc plate and are linearly distributed. The initial position of the ring gear meshes with the teeth opened at the bottom end of the bow plate away from the trapezoidal block to form a meshing transmission, and the end of the oblique block away from the torsion spring is fixedly connected to the inner wall of the bottom end of one side of the outer shell.

[0013] Furthermore, the sound wave curve mechanism includes an annular shaft fixedly connected to the outer wall of one side of the ring gear, the outer wall of the annular shaft is provided with a clamping shaft, the outer wall of one end of the clamping shaft away from the annular shaft is fixedly connected to a bent rod, the outer wall of one end of the bent rod away from the clamping shaft is fixedly connected to a sound cover, and the outer wall of one side of the bent rod is fixedly connected to a bottom rod.

[0014] Furthermore, an annular groove is provided on the outer wall of the annular shaft, and the clamping shaft is clamped in the annular groove provided on the outer wall of the annular shaft.

[0015] Furthermore, a wireless receiver is arranged inside the sound enclosure, one end of the bottom rod away from the clamping shaft is fixedly connected to the top outer wall of the air compressor body, and the bottom outer wall of one side of the clamping shaft is rotatably connected to the top outer wall of the bottom rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention utilizes the shielding cover and the curved plate to cooperate with each other, and the sound and heat diffusion mechanism can guide the scattered sound waves to a specific sound-absorbing area, so that the sound waves are repeatedly reflected and attenuated, further reducing noise; after the sound waves are gathered and diffused, they can be evenly distributed on the surface of the sound-absorbing material, making full use of the noise reduction performance of the sound-absorbing material and reducing noise leakage; low-frequency noise is often not easily absorbed, and after passing through the sound and heat diffusion mechanism, its reflection path is extended, thereby effectively weakening it; heat is guided to the inner wall of the box or the heat dissipation area through the sound and heat diffusion mechanism to avoid heat concentration in certain parts, thereby improving the overall heat dissipation efficiency; by guiding the heat to the area close to the air duct or exhaust port, the heat discharge is accelerated to prevent the equipment from overheating; uniform heat dissipation reduces the impact of local thermal stress on the equipment, thereby extending the service life of the equipment and sound insulation materials; by gathering and diffusing the airflow in the box to a specific area, the location of dust deposition is controlled, reducing pollution to the key components of the air compressor; after the heat is diffused to the entire surface of the box, it will not accumulate excessively in a certain area, thereby avoiding equipment damage or fire hazards caused by high temperature; (2) The present invention utilizes sound insulation cotton and placed arc blocks to cooperate with each other. The moving sound insulation medium can dynamically absorb noises of different frequencies, especially having a better attenuation effect on high-frequency noise and low-frequency vibration noise; the filled moving sound insulation medium can reduce the multiple reflections of sound waves on the inner wall of the chassis, reducing the possibility of noise superposition; the sound insulation medium itself has certain elasticity and damping properties, which can effectively absorb and dissipate the mechanical vibrations generated by the operation of the air compressor body; the moving medium can break the vibration mode of fixed frequency and avoid the resonance effect inside the chassis; some sound insulation media have thermal conductivity, which can guide heat from the high-temperature area to the outside of the box, thereby improving the overall heat dissipation efficiency of the equipment, and secondly, by reducing the material noise caused by thermal expansion, the chassis environment is further optimized; during high-intensity operation, the moving sound insulation medium can absorb the impact force generated inside, reduce the direct impact on the chassis wall, and extend the service life of the structure; finally, reduce the noise hazard caused by the long-term operation of the air compressor body to personnel; (3) The present invention utilizes the cooperation between the sound enclosure and the curved rod. When the sound waves propagate, they will be reflected and refracted multiple times due to contact with the sound wave curve mechanism, which greatly weakens the energy of the sound waves. The sound wave curve mechanism prolongs the sound wave propagation path, increases the time and number of sound wave absorption, and improves the sound insulation effect. The sound wave curve mechanism can dynamically adjust the sound absorption effect at different operation stages to adapt to the noise frequency changes under different loads of the air compressor, so as to achieve the purpose of customized noise reduction. The sound wave curve mechanism can effectively destroy the flat reflective surface inside the soundproof window and reduce the standing wave phenomenon (the high noise area formed by the sound wave in the plane reflection). The sound wave curve mechanism disperses the concentrated energy of the sound wave to avoid the fatigue or performance degradation of the sound insulation box material due to resonance. Through the movement of the sound wave curve mechanism, the static air environment inside the chassis is avoided, the diffusion of heat and sound waves is promoted, and the interior is made more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of a partial three-dimensional structure of the acoustic and thermal diffusion mechanism of the present invention; Figure 3 It is a partial three-dimensional structural schematic diagram of the position relationship between the arc plate and the arc rod of the present invention; Figure 4 It is a partial three-dimensional structural schematic diagram of the position relationship between the shielding cover and the trapezoidal block of the present invention; Figure 5 It is a schematic diagram of the local three-dimensional structure of the placement of the arc plate and the position relationship of the rotating rod of the present invention; Figure 6 This is a schematic diagram of the local three-dimensional structure of the placement of the arc plate and the position relationship of the sound insulation cotton of the present invention; Figure 7 It is a partial three-dimensional structural schematic diagram of the positional relationship between the annular shaft and the clamping shaft of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the position relationship between the curved rod and the sound enclosure of the present invention.

[0018] The numbers in the figure are: 1. Air compressor body; 11. Shell; 12. Compressor; 13. Engine; 14. Soundproof window; 2. Sound and heat diffusion mechanism; 21. Drive shaft; 22. Arc plate; 23. Arc rod; 24. Square plate; 25. Trapezoidal block; 26. Shielding cover; 27. Bow plate; 3. Filling vibration absorption mechanism; 31. Support rod; 32. Friction plate; 33. Place arc plate; 34. Sound insulation cotton; 35. Rotating block; 36. Rotating rod; 37. Ring gear; 38. Torsion spring; 39. Oblique block; 4. Sound wave curve mechanism; 41. Ring shaft; 42. Cardan shaft; 43. Bent rod; 44. Sound hood; 45. Bottom rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention; Embodiments of the present invention A noise reduction and sound insulation chassis for air compressor, reference Figure 1As shown, it includes an air compressor body 1 of a cylindrical shaft structure, a shell 11 for isolating internal noise and vibration is fixedly connected to one side outer wall of the air compressor body 1, a compressor 12 for compressing air to a required pressure is fixedly connected to the top outer wall of the air compressor body 1 close to the shell 11, an engine 13 for providing power to drive the compressor 12 to work is fixedly connected to the side outer wall of the air compressor body 1 away from the compressor 12, and a soundproof window 14 for effectively blocking the noise generated by the air compressor body 1 when it is running and propagating outward is fixedly connected to the side outer wall of the air compressor body 1 close to the shell 11; In view of the above-mentioned noise reduction and sound insulation chassis of an air compressor, it can be specifically implemented as follows: The upper end of the engine 13 is provided with a sound and heat diffusion mechanism 2, the outer wall of one side of the engine 13 is provided with a filling vibration absorption mechanism 3, and the side of the engine 13 close to the shell 11 is provided with a sound wave curve mechanism 4; refer to Figure 2 As shown, the acoustic and thermal diffusion mechanism 2 is used to guide the scattered sound waves to a specific sound absorption area; refer to Figure 3 As shown, the sound and heat diffusion mechanism 2 includes a driving shaft 21 that passes through and is fixedly connected to the top surface of the housing 11, and an outer wall of the driving shaft 21 at one end away from the housing 11 is fixedly connected to an arc plate 22, and an outer wall of the top end of the arc plate 22 is rotatably connected to an arc rod 23, and a plurality of arc rods 23 are symmetrically arranged around the central axis of the arc plate 22, and the outer walls of the ends of the plurality of arc rods 23 away from the arc plate 22 are all fixedly connected to a trapezoidal block 25, and the outer walls of the sides of the plurality of trapezoidal blocks 25 away from the arc rod 23 are all provided with a square plate 24, and the outer walls of the ends of the plurality of trapezoidal blocks 25 away from the arc rod 23 are all fixedly connected to a shielding cover 26, and the outer walls of the ends of the plurality of shielding covers 26 close to the trapezoidal blocks 25 are all fixedly connected to an arched plate 27; refer to Figure 4 As shown, the output end of the drive shaft 21 away from the housing 11 is externally connected to a reduction motor, a plurality of arc-shaped rods 23 are distributed in a ring shape at the four corners of the top of the arc-shaped plate 22, and a plurality of square plates 24 are fixedly connected to the lower inner surface of the housing 11 at one end away from the trapezoidal block 25; refer to Figure 4 As shown, a plurality of square plates 24 are provided with square through grooves inside, a plurality of trapezoidal blocks 25 are slidably connected to the square through grooves inside the square plates 24, the interior of the shielding cover 26 is in a cavity shape, and a bottom end of one of the arched plates 27 away from the trapezoidal block 25 is provided with teeth; Summary 1: Compared with the prior art, noise leakage is not easily absorbed. The acoustic and thermal diffusion mechanism 2 of the present invention can guide the scattered sound waves to a specific sound-absorbing area, so that the sound waves are repeatedly reflected and attenuated, further reducing noise; after the sound waves are gathered and diffused, they can be evenly distributed on the surface of the sound-absorbing material, making full use of the noise reduction performance of the sound-absorbing material and reducing noise leakage; low-frequency noise is often not easily absorbed. After passing through the acoustic and thermal diffusion mechanism 2, its reflection path is extended, thereby effectively weakening it; heat is guided to the inner wall of the box or the heat dissipation area through the acoustic and thermal diffusion mechanism 2 to avoid heat concentration in certain areas, thereby improving the overall heat dissipation efficiency; by guiding the heat to the area close to the air duct or exhaust port, the heat discharge is accelerated to prevent the equipment from overheating; uniform heat dissipation reduces the impact of local thermal stress on the equipment, thereby extending the service life of the equipment and sound insulation materials; by gathering and diffusing the airflow in the box to a specific area, the location of dust deposition is controlled to reduce pollution to key components of the air compressor; after the heat is diffused to the entire surface of the box, it will not accumulate excessively in a certain area, thereby avoiding equipment damage or fire hazards caused by high temperature.

[0020] refer to Figure 5 As shown, the filling vibration absorbing mechanism 3 is used to absorb and dissipate the mechanical vibration generated by the operation of the air compressor body 1; refer to Figure 5 As shown, the filling vibration absorbing mechanism 3 includes a support rod 31 fixedly connected to the inner wall of the bottom end of one side of the shell 11, the support rod 31 is fixedly connected to the friction plate 32 at one end away from the shell 11, an arc plate 33 is arranged on the outer wall of the side of the friction plate 32 away from the support rod 31, a plurality of sound insulation cottons 34 are fixedly connected inside the side of the arc plate 33 away from the friction plate 32, a rotating block 35 is rotatably connected to the inner wall of the end of the arc plate 33 away from the friction plate 32, a rotating rod 36 is rotatably connected to the inner wall of the end of the arc plate 33 away from the rotating block 35, a ring gear 37 is rotatably connected to the outer wall of the end of the rotating rod 36 away from the arc plate 33, a torsion spring 38 is fixedly connected to the outer wall of the rotating block 35 away from the arc plate 33, and an inclined block 39 is fixedly connected to the outer wall of the end of the torsion spring 38 away from the rotating block 35; refer to Figure 6 As shown, a smooth curved surface is provided on the outer wall of the friction plate 32 away from the support rod 31, and a placement arc plate 33 is slidably connected to the outer wall of the friction plate 32. The placement arc plate 33 is made of aluminum alloy, and the sound insulation cotton 34 is made of polyester fiber. refer to Figure 6 As shown, a cavity is opened inside the arc plate 33, and a plurality of sound insulation cottons 34 are evenly filled in the cavity opened inside the arc plate 33 and are linearly distributed. The initial position of the ring gear 37 meshes with the teeth opened at the bottom end of the side of the arch plate 27 away from the trapezoidal block 25 and forms a meshing transmission. The end of the oblique block 39 away from the torsion spring 38 is fixedly connected to the inner wall of the bottom end of one side of the housing 11. Summary 2: Compared with the possibility of noise superposition in the prior art, the moving sound insulation medium of the present invention can dynamically absorb noises of different frequencies, especially has a better attenuation effect on high-frequency noise and low-frequency vibration noise; the filled moving sound insulation medium can reduce the multiple reflections of sound waves on the inner wall of the chassis, reducing the possibility of noise superposition; the sound insulation medium itself has certain elasticity and damping properties, which can effectively absorb and dissipate the mechanical vibrations generated by the operation of the air compressor body 1; the moving medium can break the vibration mode of fixed frequency and avoid the resonance effect inside the chassis; some sound insulation media have thermal conductivity, which can guide heat from the high-temperature area to the outside of the chassis, improve the overall heat dissipation efficiency of the equipment, and secondly, further optimize the chassis environment by reducing the material noise caused by thermal expansion; during high-intensity operation, the moving sound insulation medium can absorb the impact force generated inside, reduce the direct impact on the chassis wall, and extend the service life of the structure; finally, reduce the noise hazard caused to personnel by the long-term operation of the air compressor body 1.

[0021] refer to Figure 7 As shown, the sound wave curve mechanism 4 is used to increase the time and number of sound wave absorption by extending the sound wave propagation path; refer to Figure 7 As shown, the sound wave curve mechanism 4 includes an annular shaft 41 fixedly connected to the outer wall of one side of the ring gear 37, the outer wall of the annular shaft 41 is provided with a clamping shaft 42, the outer wall of one end of the clamping shaft 42 away from the annular shaft 41 is fixedly connected to a bent rod 43, the outer wall of one end of the bent rod 43 away from the clamping shaft 42 is fixedly connected to a sound cover 44, and the outer wall of one side of the bent rod 43 is fixedly connected to a bottom rod 45; refer to Figure 7 As shown, the outer wall of the annular shaft 41 is provided with an annular groove, and the clamping shaft 42 is clamped in the annular groove provided on the outer wall of the annular shaft 41; refer to Figure 8 As shown, a wireless receiver is arranged inside the sound enclosure 44, one end of the bottom rod 45 away from the clamping shaft 42 is fixedly connected to the top outer wall of the air compressor body 1, and the bottom outer wall of one side of the clamping shaft 42 is rotatably connected to the top outer wall of the bottom rod 45; Summary 3: Compared with the prior art where the noise frequency changes under different loads of the air compressor body 1, the sound waves of the present invention will be reflected and refracted multiple times due to contact with the sound wave curve mechanism 4 during propagation, which greatly weakens the energy of the sound waves; the sound wave curve mechanism 4 extends the sound wave propagation path, increases the time and number of sound wave absorption, and improves the sound insulation effect; the sound wave curve mechanism 4 can dynamically adjust the sound absorption effect in different operating stages, adapt to the noise frequency changes under different loads of the air compressor, and achieve the purpose of customized noise reduction; the sound wave curve mechanism 4 can effectively destroy the flat reflective surface inside the soundproof window 14, and reduce the high-noise area formed by the standing wave phenomenon of sound waves in the plane reflection; the sound wave curve mechanism 4 disperses the concentrated energy of the sound wave, and avoids fatigue or performance degradation of the sound insulation box material due to resonance; through the movement of the sound wave curve mechanism 4, the static air environment inside the chassis is avoided, the diffusion of heat and sound waves is promoted, and the interior is made more uniform.

[0022] The complete working principle and steps of the above embodiment are as follows: Initial qualification: Figure 1 As shown, 1. Initial state and startup phase The air compressor body 1 drives its engine 13 through external electricity or fuel. When the switch is turned on: The engine 13 starts the power system: the engine 13 provides a rotational force to drive the piston or rotating blades inside the compressor 12 to move.

[0023] The engine 13 and the compressor 12 are connected via a coupling to ensure smooth and stable power transmission.

[0024] The housing 11 protects the internal components: The housing 11 of the air compressor body 1 not only plays a structural support role, but also prevents dust and foreign matter from entering the internal equipment, and provides a fixed position for the soundproof window 14 and other noise reduction components; 2. Air Intake Stage When the air compressor starts to operate, it draws in ambient air through the air inlet: The air intake valve opens: The air intake is usually equipped with a filter to ensure that the inhaled air does not contain dust particles and impurities. The filtered air enters the compressor 12 cavity to prepare for the next compression process.

[0025] Soundproof window 14 function: At this stage, the soundproof window 14 reduces the leakage of mechanical noise generated during the operation of the engine 13 and the compressor 12, while maintaining the air tightness inside the equipment to prevent excessive eddy noise from being generated when air is inhaled.

[0026] 3. Air compression stage The air is mechanically compressed in the compressor 12 to increase the gas pressure: Compressor 12 cavity action: After the air is sent into the compressor 12 cavity, as the piston moves upward or the rotor rotates, the gas volume gradually decreases and the gas pressure continues to rise. A lot of heat is generated in this process, and the cooling system is activated to maintain the equipment temperature within the normal range.

[0027] Heat Control and Sound Isolation Design: At this stage, the housing 11 not only provides structural support, but also has a certain heat insulation effect to prevent the device from overheating and affecting performance.

[0028] The soundproof window 14 continuously reduces the impact of vibration noise generated by the high-speed compressor 12 and air flow on the environment.

[0029] 4. High-pressure air output stage After the air is compressed, the high-pressure gas is output to the gas storage tank or gas-using equipment through the exhaust port: Exhaust valve opens: The compressed high-pressure air enters the air tank through the one-way valve, while preventing the high-pressure air in the air tank from flowing back to the compressor 12 cavity. During the exhaust process, the air will pass through the cooler to cool down to prevent the high-temperature gas from damaging the air tank and downstream equipment.

[0030] Gas tank pressure management: When the pressure in the gas tank reaches the set value, the compressor 12 automatically stops. Conversely, when the pressure drops to the set lower limit, the equipment restarts to maintain a stable gas supply state.

[0031] 5. Cooling and noise reduction auxiliary work During continuous operation of the equipment, all components work together to maintain optimal condition: Cooling system operation: The cooling medium is usually air-cooled or water-cooled to absorb the heat generated during the compression process to prevent high temperature from causing aging or damage to equipment components. The cooler will reduce the temperature of the discharged high-pressure gas to a safe range to ensure the safety of subsequent use.

[0032] Optimization of the sound insulation system: The sound insulation window 14 works together with the housing 11 to effectively reduce the transmission of mechanical noise from the engine 13 and the compressor 12. Especially when running at high loads, the material of the sound insulation window 14 can absorb and attenuate more vibration energy, making the equipment run more quietly and environmentally friendly.

[0033] When using: Acoustic and thermal diffusion mechanism for directing scattered sound waves to specific sound absorption areas 2 steps: like Figure 3 to Figure 4As shown, when the mechanical noise generated during the operation of the engine 13 and the compressor 12 leaks out, the operator starts the reduction motor externally connected to the output end of one end of the drive shaft 21, thereby driving the drive shaft 21 to rotate, so that the arc plate 22 fixedly connected to the bottom end of the drive shaft 21 will rotate, and then the arc rod 23 connected to the outer wall around the arc plate 22 will rotate, so that the rotation of the arc rod 23 will pull the trapezoidal block 25 fixedly connected to one end thereof to slide in the square through groove opened inside the square plate 24, and then the sliding of the trapezoidal block 25 will drive the shielding cover 26 fixedly connected to the lower end thereof and the arched plate 27 to move synchronously, so that the upper end surface of the engine 13 is covered by the opposite movement of multiple shielding covers 26, and the noise transmitted from the engine 13 is evenly distributed on the inner surface of the shielding cover 26; Filling vibration absorbing mechanism 3 for absorbing and dissipating mechanical vibrations generated from the operation of air compressor body 1 Steps: like Figures 5 and 6 As shown, when the arch plate 27 moves synchronously with the movement of the trapezoidal block 25, the teeth provided at the bottom end of the arch plate 27 will drive the meshing ring gear 37 to rotate, and then the rotation of the ring gear 37 will drive the rotating rod 36 on the outer wall of one side thereof to deflect and rotate, so that the deflection and rotation of the rotating rod 36 will drive the placement arc plate 33 connected to one end thereof to rotate and deflect, and at the same time, the deflection trajectory of the placement arc plate 33 slides along the smooth curved surface of the outer wall of the friction plate 32, so that after the placement arc plate 33 slides to the surface of the engine 13, the sound insulation cotton 34 filled inside the placement arc plate 33 will absorb the noise generated by the engine 13, and the placement arc plate 33 will squeeze the torsion spring 38 during the movement and deflection process, thereby playing a buffering and stabilizing role in the deflection and rotation of the placement arc plate 33, and the arc trajectory movement absorption will absorb the noise emitted by the engine 13 from far to near, and the absorption is more uniform and stable; The 4-step sonic curve mechanism for increasing the time and frequency of sound wave absorption by extending the sound wave propagation path: like Figures 7 and 8 As shown, when the ring gear 37 rotates, the ring shaft 41 fixedly connected to the outer wall of one side thereof will rotate synchronously, and then the rotation of the ring shaft 41 will cause the clamping shaft 42 clamped in the annular groove provided in the outer wall thereof to drive the curved rod 43 to deflect and move in an irregular trajectory direction along with the rotation of the ring shaft 41, so that the curved rod 43 will deflect and move on the top outer wall of the bottom rod 45, and then the irregular trajectory deflection movement of the curved rod 43 will drive the sound cover 44 fixedly connected to one end thereof to move synchronously, so that the wireless receiver in the sound cover 44 will absorb the noise generated by the surrounding of the engine 13 in a multi-angle and multi-range curved manner; Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air compressor noise reduction and sound insulation case, comprising an air compressor body (1) of a cylindrical shaft structure, a shell (11) for isolating internal noise and vibration fixedly connected to one side outer wall of the air compressor body (1), a compressor (12) for compressing air to a required pressure fixedly connected to the top outer wall of the air compressor body (1) close to the shell (11), an engine (13) for providing power to drive the compressor (12) to work fixedly connected to the side outer wall of the air compressor body (1) away from the compressor (12), and a sound insulation window (14) for effectively blocking the noise generated by the air compressor body (1) during operation and propagating outwardly fixedly connected to the side outer wall of the air compressor body (1) close to the shell (11), characterized in that: The upper end of the engine (13) is provided with a sound and heat diffusion mechanism (2), the outer wall of one side of the engine (13) is provided with a filling vibration absorption mechanism (3), and the side of the engine (13) close to the outer shell (11) is provided with a sound wave curve mechanism (4); The acoustic and thermal diffusion mechanism (2) is used to guide the scattered sound waves to a specific sound absorption area; The filling vibration absorbing mechanism (3) is used to absorb and dissipate mechanical vibrations generated by the operation of the air compressor body (1); The sound wave curve mechanism (4) is used to increase the time and number of sound wave absorption by extending the sound wave propagation path.

2. The noise reduction and sound insulation case for an air compressor according to claim 1, characterized in that: The acoustic and thermal diffusion mechanism (2) comprises a driving shaft (21) which passes through and is fixedly connected to the top surface of the housing (11); an outer wall of one end of the driving shaft (21) away from the housing (11) is fixedly connected to an arc plate (22); an outer wall of the top end of the arc plate (22) is rotatably connected to an arc rod (23); a plurality of arc rods (23) are symmetrically arranged about the central axis of the arc plate (22); an outer wall of one end of the plurality of arc rods (23) away from the arc plate (22) is fixedly connected to a trapezoidal block (25); an outer wall of one side of the plurality of trapezoidal blocks (25) away from the arc rod (23) is provided with a square plate (24); an outer wall of one end of the plurality of trapezoidal blocks (25) away from the arc rod (23) is fixedly connected to a shielding cover (26); and an outer wall of one end of the plurality of shielding covers (26) close to the trapezoidal block (25) is fixedly connected to a bow plate (27).

3. The noise reduction and sound insulation case for an air compressor according to claim 2, characterized in that: The output end of the drive shaft (21) away from the housing (11) is externally connected to a reduction motor, a plurality of arc-shaped rods (23) are distributed in a ring shape at the four corners of the top end of the arc-shaped plate (22), and the ends of the plurality of square plates (24) away from the trapezoidal blocks (25) are fixedly connected to the lower inner surface of the housing (11).

4. The noise reduction and sound insulation case for an air compressor according to claim 2, characterized in that: A plurality of the square plates (24) are provided with square through-grooves inside, a plurality of the trapezoidal blocks (25) are slidably connected to the square through-grooves inside the square plates (24), the interior of the shielding cover (26) is in the shape of a cavity, and teeth are provided on the bottom end of one side of the arched plates (27) away from the trapezoidal block (25).

5. The noise reduction and sound insulation case for an air compressor according to claim 1, characterized in that: The filling vibration absorbing mechanism (3) comprises a support rod (31) fixedly connected to the inner wall of the bottom end of one side of the outer shell (11); one end of the support rod (31) away from the outer shell (11) is fixedly connected to a friction plate (32); an outer wall of a side of the friction plate (32) away from the support rod (31) is provided with a placement arc plate (33); a side of the placement arc plate (33) away from the friction plate (32) is fixedly connected to a plurality of sound insulation cottons (34); and the placement arc plate (33) away from the friction plate (3 2) is rotatably connected to an inner wall of one end of the arc plate (33) away from the rotating block (35), is rotatably connected to a rotating rod (36), is rotatably connected to an outer wall of one end of the arc plate (33) away from the rotating block (35), is rotatably connected to an annular gear (37), is fixedly connected to an outer wall of a side of the rotating block (35) away from the arc plate (33), and is fixedly connected to an oblique block (39) on an outer wall of one end of the torsion spring (38) away from the rotating block (35).

6. The noise reduction and sound insulation case for an air compressor according to claim 5, characterized in that: The outer wall of the friction plate (32) at one side away from the support rod (31) is provided with a smooth curved surface, the placement arc plate (33) is slidably connected to the outer wall of the friction plate (32), the placement arc plate (33) is made of aluminum alloy, and the sound insulation cotton (34) is made of polyester fiber.

7. The noise reduction and sound insulation case for an air compressor according to claim 5, characterized in that: A cavity is provided inside the arc plate (33), and a plurality of the sound insulation cottons (34) are uniformly filled in the cavity provided inside the arc plate (33) and are linearly distributed. The initial position of the ring gear (37) meshes with the teeth provided at the bottom end of the bow plate (27) away from the trapezoidal block (25) to form a meshing transmission. The end of the oblique block (39) away from the torsion spring (38) is fixedly connected to the inner wall of the bottom end of one side of the housing (11).

8. The noise reduction and sound insulation case for an air compressor according to claim 5, characterized in that: The sonic curve mechanism (4) comprises an annular shaft (41) fixedly connected to an outer wall of one side of a ring gear (37); a clamping shaft (42) is provided on the outer wall of the annular shaft (41); a bent rod (43) is fixedly connected to the outer wall of one end of the clamping shaft (42) away from the annular shaft (41); a sound enclosure (44) is fixedly connected to the outer wall of one end of the bent rod (43) away from the clamping shaft (42); and a bottom rod (45) is fixedly connected to the outer wall of one side of the bent rod (43).

9. The noise reduction and sound insulation case for an air compressor according to claim 8, characterized in that: An annular groove is provided on the outer wall of the annular shaft (41), and the clamping shaft (42) is clamped in the annular groove provided on the outer wall of the annular shaft (41).

10. The noise reduction and sound insulation case for an air compressor according to claim 9, characterized in that: A wireless receiver is arranged inside the sound enclosure (44); one end of the bottom rod (45) away from the clamping shaft (42) is fixedly connected to the top outer wall of the air compressor body (1); and the bottom outer wall of one side of the clamping shaft (42) is rotatably connected to the top outer wall of the bottom rod (45).

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