Air pump

Abstract

The utility model provides an air pump which comprises a motor, the motor is provided with a motor shell and an output rotating shaft, and the two ends of the output rotating shaft extend out of the motor shell respectively. The cylinder assembly is in transmission connection with the output rotating shaft; wherein one end of the output rotating shaft is in transmission connection with the air cylinder assembly through a reciprocating driving part, the other end of the output rotating shaft is provided with a heat dissipation device, the motor shell is provided with a first end face close to the heat dissipation device, and the first end face is provided with heat dissipation through holes. Through the structure, under the driving of the motor, the reciprocating driving piece rotates along with the rotation of the output rotating shaft, and the air cylinder assembly reciprocates along with the rotation of the reciprocating driving piece, so that the compression and suction of air are realized, and the heat dissipation device is arranged at the upper end of the motor shell; the temperature of the motor in a long-time operation process can be effectively reduced, so that the service life of the motor is prolonged, and the performance stability of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the field of air pumps, in particular to an air pump. Background Art

[0002] With the continuous development of industrial technology, air pumps have become the core components of equipment in many industries such as medical treatment, beauty and body care, health and wellness, rehabilitation treatment, energy conservation and environmental protection, small household appliances, printing, vacuum packaging, automation, food processing and automobile manufacturing. These application fields have put forward high standards for the performance and reliability of air pumps, making air pump technology a key factor in promoting the development of these industries.

[0003] However, existing air pump technology has significant thermal management issues during operation. Since the motor and internal components of the cylinder generate high heat during high-frequency movement, especially during long-term operation, the accumulation of this heat will seriously affect the operating stability and service life of the air pump. High temperature environment may not only cause mechanical failure, but also reduce the overall efficiency of the system. Therefore, the development of a new technical solution that can effectively manage internal heat while maintaining efficient operation of the air pump has become an urgent problem that the industry needs to solve. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an air pump, which enables the air pump to effectively dissipate heat during operation, thereby improving the operating stability and service life of the air pump.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The utility model provides an air pump, comprising:

[0007] A motor, the motor having a motor housing and an output shaft, wherein two ends of the output shaft extend through the outside of the motor housing respectively;

[0008] Cylinder assembly;

[0009] Among them, one end of the output shaft is transmission-connected to the cylinder assembly through a reciprocating drive member, the other end of the output shaft is provided with a heat dissipation device, the motor housing has a first end face close to the heat dissipation device, and the first end face is provided with a heat dissipation through hole.

[0010] As an improvement of the utility model, it further comprises a base shell, the base shell is connected to the motor housing, and one end of the output shaft connected to the cylinder assembly extends into the base shell.

[0011] As an improvement of the present invention, the motor housing has a second end face arranged opposite to the first end face, the base shell has a third end face connected to the second end face, and the third end face is provided with a plurality of heat dissipation grooves.

[0012] As an improvement of the present utility model, the cylinder assembly includes a first cylinder body and a first piston assembly. The first cylinder body is connected to one end of the machine base housing. One end of the first piston assembly is connected to the reciprocating driving member, and the other end of the first piston assembly is connected to the first cylinder body, so that the motor drives the first piston assembly to reciprocate along the first cylinder body. The cylinder assembly further includes a second cylinder body and a second piston assembly. The second cylinder body is connected to the other end of the machine base housing. One end of the second piston assembly is connected to the reciprocating driving member, and the other end of the second piston assembly is connected to the second cylinder body, so that the motor drives the second piston assembly to reciprocate along the second cylinder body.

[0013] As an improvement of the present utility model, the first piston assembly includes a first connecting rod and a first suction cup assembly connected to the first connecting rod. The first connecting rod is connected to the reciprocating driving member, and the first suction cup assembly is cooperatively connected to the first cylinder body. The motor drives the first suction cup assembly to reciprocate linearly along the first cylinder body. The second piston assembly includes a second connecting rod and a second suction cup assembly connected to the second connecting rod. The second connecting rod is connected to the reciprocating driving member, and the second suction cup assembly is cooperatively connected to the second cylinder body. The motor drives the second suction cup assembly to reciprocate linearly along the second cylinder body.

[0014] As an improvement of the present utility model, a first collar is provided at one end of the first connecting rod connected to the reciprocating driving member, and the first collar is sleeved on the reciprocating driving member. A second collar is provided at one end of the second connecting rod connected to the reciprocating driving member, and the second collar is sleeved on the reciprocating driving member.

[0015] As an improvement of the present utility model, the reciprocating driving member includes a first eccentric wheel and a second eccentric wheel. The first eccentric wheel and the second eccentric wheel share the same rotation center, and the central axes of the first eccentric wheel and the second eccentric wheel are respectively arranged on both sides of the rotation center. A first bearing is sleeved on the outer periphery of the first eccentric wheel, and a second bearing is sleeved on the outer periphery of the second eccentric wheel. The first collar is sleeved on the first bearing, and the second collar is sleeved on the second bearing. The eccentricity of the first eccentric wheel is equal to the eccentricity of the second eccentric wheel.

[0016] As an improvement of the present utility model, a third bearing is sleeved on the tail end of the output rotating shaft away from the heat dissipation device.

[0017] As an improvement of the present utility model, the cylinder assembly further includes a first air collecting cylinder, the first air collecting cylinder is provided with a first air inlet cavity and a first air outlet cavity, and the first air collecting cylinder is connected to the first cylinder block so that the first air inlet cavity and the first air outlet cavity communicate with the first cylinder block; the cylinder assembly further includes a second air collecting cylinder, the second air collecting cylinder is provided with a second air inlet cavity and a second air outlet cavity, and the second air collecting cylinder is connected to the second cylinder block so that the second air inlet cavity and the second air outlet cavity communicate with the second cylinder block.

[0018] As an improvement of the present utility model, the first air collecting cylinder includes a first outer cylinder cover and a first inner cylinder cover. One end of the first inner cylinder cover is connected to the first outer cylinder cover, and the first inner cylinder cover is connected to the first cylinder block. The first outer cylinder cover is provided with the first air inlet cavity and the first air outlet cavity. The first inner cylinder cover is provided with a first air inlet hole and a first air outlet hole. The first air inlet hole communicates with the first air inlet cavity, and the first air outlet hole communicates with the first air outlet cavity; the second air collecting cylinder includes a second outer cylinder cover and a second inner cylinder cover. One end of the second inner cylinder cover is connected to the second outer cylinder cover, and the second inner cylinder cover is connected to the second cylinder block. The second outer cylinder cover is provided with the second air inlet cavity and the second air outlet cavity. The second inner cylinder cover is provided with a second air inlet hole and a second air outlet hole. The second air inlet hole communicates with the second air inlet cavity, and the second air outlet hole communicates with the second air outlet cavity.

[0019] As an improvement of the present utility model, the first inner cylinder cover is fixedly connected with a first elastic valve sheet, and the first elastic valve sheet is located between the first air outlet hole and the first air outlet cavity; the first inner cylinder cover is fixedly connected with a second elastic valve sheet, and the second elastic valve sheet is located between the first air inlet hole and the first cylinder block; the second inner cylinder cover is fixedly connected with a second elastic valve sheet, and the second elastic valve sheet is located between the second air outlet hole and the second air outlet cavity; the second inner cylinder cover is fixedly connected with a second elastic valve sheet, and the second elastic valve sheet is located between the second air inlet hole and the second cylinder block.

[0020] As an improvement of the present utility model, the first air collecting cylinder is further provided with a first muffler cylinder, the first muffler cylinder communicates with the first air outlet cavity through a first connection hole, the first muffler cylinder is further provided with a first external connection hole, and the first external connection hole, the first muffler cylinder, the first connection hole and the first air outlet cavity are sequentially communicated; the second air collecting cylinder is further provided with a second muffler cylinder, the second muffler cylinder communicates with the first air inlet cavity through a second connection hole, the second muffler cylinder is further provided with a second external connection hole, and the second external connection hole, the second muffler cylinder, the second connection hole and the first air inlet cavity are sequentially communicated.

[0021] The beneficial effects of the present utility model are as follows: The present utility model provides an air pump, which includes a motor. The motor has a motor housing and an output rotating shaft, and both ends of the output rotating shaft respectively extend through the outside of the motor housing; a cylinder assembly, which is in transmission connection with the output rotating shaft; wherein, one end of the output rotating shaft is in transmission connection with the cylinder assembly through a reciprocating driving member, and a heat dissipation device is provided at the other end of the output rotating shaft. The motor housing has a first end face close to the heat dissipation device, and the first end face is provided with heat dissipation through holes. Through the above structure, driven by the motor, the reciprocating driving member rotates with the rotation of the output rotating shaft, and the cylinder assembly will perform reciprocating motion following the rotation of the reciprocating driving member, thereby realizing the compression and inhalation of gas. Moreover, by providing a heat dissipation device at the upper end of the motor housing, the temperature of the motor during long-term operation can be effectively reduced, thereby prolonging the service life of the motor and improving its performance stability. And since a plurality of heat dissipation through holes are provided on the first end face of the motor housing opposite to the heat dissipation device, the air flow of the heat dissipation device can directly enter the interior of the motor housing through the heat dissipation through holes, more efficiently realizing the heat dissipation effect of the fan on the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. The following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 is the overall structural schematic diagram of the present utility model;

[0025] Figure 2 is the exploded view of the present utility model;

[0026] Figure 3 is the cross-sectional view of the present utility model;

[0027] Figure 4 is the exploded view of a partial structure of the present utility model;

[0028] Figure 5 is the exploded view of the first air collecting cylinder of the present utility model;

[0029] Figure 6 is the exploded view of the second air collecting cylinder of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Refer to Figures 1 to 6 , an air pump, including:

[0031] The motor 1 comprises a motor housing 11 and an output shaft 12, wherein two ends of the output shaft 12 extend through the outside of the motor housing 11 respectively;

[0032] Cylinder assembly 2;

[0033] One end of the output shaft 12 is connected to the cylinder assembly 2 via a reciprocating drive member 3, the other end of the output shaft 12 is provided with a heat dissipation device 4, the motor housing 11 has a first end surface 111 close to the heat dissipation device 4, and the first end surface 111 is provided with a heat dissipation through hole 1111. Specifically, the heat dissipation device 4 is a fan.

[0034] Through the above structure, under the drive of the motor 1, the reciprocating drive member 3 rotates with the rotation of the output shaft 12, and the cylinder assembly 2 will reciprocate following the rotation of the reciprocating drive member 3, thereby realizing the compression and suction of the gas, and a heat dissipation device 4 is arranged at the upper end of the motor housing 11, which can effectively reduce the temperature of the motor 1 during long-term operation, thereby extending the service life of the motor 1 and improving its performance stability, and because a plurality of heat dissipation holes 1111 are arranged on the first end face 111 of the motor housing 11 opposite to the heat dissipation device 4, the airflow of the heat dissipation device 4 can directly enter the interior of the motor housing 11 through the heat dissipation holes 1111, thereby more efficiently realizing the heat dissipation effect of the fan on the motor 1.

[0035] In this embodiment, a base housing 5 is also included, and the base housing 5 is connected to the motor housing 11, and one end of the output shaft 12 connected to the cylinder assembly 2 extends into the base housing 5. Furthermore, the motor housing 11 has a second end face 112 arranged opposite to the first end face 111, and the base housing 5 has a third end face 51 connected to the second end face 112, and the third end face 51 is provided with a plurality of heat dissipation grooves 511. Through the above structure, these grooves effectively improve the heat dissipation efficiency by increasing the surface area and optimizing the air flow path. The design of the grooves not only helps to dissipate the heat generated by the operation of the motor 1, but also reduces the temperature burden of the entire device in a high temperature environment, thereby improving the operating stability of the device and extending its service life.

[0036] In this embodiment, the cylinder assembly 2 includes a first cylinder body 21 and a first piston assembly 22. The first cylinder body 21 is connected to one end of the base housing 5, one end of the first piston assembly 22 is connected to the reciprocating drive member 3, and the other end of the first piston assembly 22 is connected to the first cylinder body 21, so that the motor 1 drives the first piston assembly 22 to reciprocate along the first cylinder body 21. Through the above structure, the first piston assembly 22 reciprocates in the first cylinder body 21, so that the air pressure in the first cylinder body 21 changes, thereby realizing the compression and suction of the gas, and the compressed or sucked gas will be sucked in or discharged through the first gas collecting cylinder 6.

[0037] In this embodiment, the cylinder assembly 2 further includes a second cylinder block 23 and a second piston assembly 24. The second cylinder block 23 is connected to the other end of the machine base housing 5. One end of the second piston assembly 24 is connected to the reciprocating drive member 3, and the other end of the second piston assembly 24 is connected to the second cylinder block 23, so that the motor 1 drives the second piston assembly 24 to reciprocate along the second cylinder block 23. With the above structure, the design of the second cylinder block 23 increases the air flow output of the air pump, enabling the air pump to have a smaller volume while being able to output a larger flow of gas. Similarly, the reciprocating movement of the second piston assembly 24 within the second cylinder block 23 causes the air pressure within the second cylinder block 23 to change, thereby realizing the compression and inhalation of gas. The compressed or inhaled gas is inhaled or discharged via the second air collecting cylinder 9.

[0038] In this embodiment, the first piston assembly 22 includes a first connecting rod 221 and a first suction cup assembly 222 connected to the first connecting rod 221. The first connecting rod 221 is connected to the reciprocating drive member 3, and the first suction cup assembly 222 is cooperatively connected to the first cylinder block 21. The motor 1 drives the first suction cup assembly 222 to perform a reciprocating linear motion along the first cylinder block 21; the second piston assembly 24 includes a second connecting rod 241 and a second suction cup assembly 242 connected to the second connecting rod 241. The second connecting rod 241 is connected to the reciprocating drive member 3, and the second suction cup assembly 242 is cooperatively connected to the second cylinder block 23. The motor 1 drives the second suction cup assembly 242 to perform a reciprocating linear motion along the second cylinder block 23.

[0039] Further, a first collar 2211 is provided at one end of the first connecting rod 221 connected to the reciprocating drive member 3, and the first collar 2211 is sleeved on the reciprocating drive member 3; a second collar 2411 is provided at one end of the second connecting rod 241 connected to the reciprocating drive member 3, and the second collar 2411 is sleeved on the reciprocating drive member 3.

[0040] With the above structure, the first connecting rod 221 and the second connecting rod 241 are arranged complementarily up and down, and the collars of the first connecting rod 221 and the second connecting rod 241 are respectively sleeved on the reciprocating drive member 3, so that when the reciprocating drive member 3 drives the first connecting rod 221 and the second connecting rod 241 to reciprocate, they will not interfere with each other.

[0041] In this embodiment, the reciprocating driving member 3 includes a first eccentric wheel 31 and a second eccentric wheel 32. The first eccentric wheel 31 and the second eccentric wheel 32 share the same rotation center, and the central axes of the first eccentric wheel 31 and the second eccentric wheel 32 are respectively arranged on both sides of the rotation center. A first bearing 311 is sleeved on the outer periphery of the first eccentric wheel 31, and a second bearing 321 is sleeved on the outer periphery of the second eccentric wheel 32. The first collar 2211 is sleeved on the first bearing 311, and the second collar 2411 is sleeved on the second bearing 321; the eccentricity of the first eccentric wheel 31 is equal to the eccentricity of the second eccentric wheel 32. With the above structure, the first eccentric wheel 31 and the second eccentric wheel 32 are connected and have the same rotation center, and the output shafts of the first eccentric wheel 31 and the second eccentric wheel 32 are respectively arranged on both sides of the rotation center. The first eccentric wheel 31 and the second eccentric wheel 32 respectively drive the first connecting rod 221 and the second connecting rod 241. The eccentricity of the first eccentric wheel 31 is equal to the eccentricity of the second eccentric wheel 32, so that the moving distances of the first connecting rod 221 and the second connecting rod 241 are equal, the moving directions are symmetric with each other, and they compensate each other, offsetting the influence of the eccentric force on the output rotating shaft 12 of the motor 1 during movement, reducing the resonance inside the air pump, and prolonging the service life of the air pump.

[0042] In this embodiment, a third bearing 121 is sleeved on the end of the output rotating shaft 12 away from the heat dissipation device 4. With the above structure, by adding one more bearing to the output rotating shaft 12 of the motor 1, the stability of the entire driving system is improved and wear is reduced. The application of the bearing not only improves the structural stability of the reciprocating driving member 3, but also can extend the service life of the air pump.

[0043] In this embodiment, the cylinder assembly 2 further includes a first air collecting cylinder 6. The first air collecting cylinder 6 is provided with a first air inlet cavity 61 and a first air outlet cavity 62. The first air collecting cylinder 6 is connected to the first cylinder block 21 so that the first air inlet cavity 61 and the first air outlet cavity 62 communicate with the first cylinder block 21. The first air collecting cylinder 6 is further provided with a silencing device 7.

[0044] Further, the silencing device 7 includes a first silencing cavity 63 and a second silencing cavity 64 provided in the first air collecting cylinder 6. The first silencing cavity 63 communicates with the first air outlet cavity 62 through a first connection hole 621, and the second silencing cavity 64 communicates with the first air inlet cavity 61 through a second connection hole 611. Among them, both the first silencing cavity 63 and the second silencing cavity 64 are inner cavities in the shape of an approximate cube. With the above structure, when the gas enters the first air inlet cavity 61 or the first air outlet cavity 62, it must pass through the first silencing cavity 63 or the second silencing cavity 64 added to the first air collecting cylinder 6. Compared with the existing air collecting cylinder, when the gas enters the first silencing cavity 63 or the second silencing cavity 64, the phenomenon of gas dispersion and gas flow rate reduction will occur, reducing the pulse fluctuation of the gas, realizing the steady flow effect of the gas, and the design of the cavity can absorb part of the sound energy in the air flow, thereby effectively reducing the noise caused by the air flow and achieving the sound elimination effect.

[0045] Furthermore, the first collecting cylinder 6 is also provided with a first external connection hole 631 and a second external connection hole 641. The first external connection hole 631, the first silencing cavity 63, the first connection hole 621, and the first air outlet cavity 62 are connected in sequence. The second external connection hole 641, the second silencing cavity 64, the second connection hole 611, and the first air inlet cavity 61 are connected. Further, the first external connection hole 631 is threadedly connected to a first gas transmission pipeline 8, and the second external connection hole 641 is threadedly connected to a second gas transmission pipeline 81; sealing rings 82 are provided between the first external connection hole 631 and the first gas transmission pipeline 8 and between the second external connection hole 641 and the second gas transmission pipeline 81. With the above structure, the first gas transmission pipeline 8 and the first external connection hole 631 are threadedly connected, providing higher connection stability and sealing performance, allowing the first gas transmission pipeline 8 to be more firmly installed in the external connection hole of the air pump, reducing the risk of gas leakage, and improving the overall efficiency and safety during gas transmission operation. And a sealing ring 82 is also sleeved between the connection of the first gas transmission pipeline 8 and the first external connection hole 631. The addition of the sealing ring 82 significantly improves the sealing effect of the interface. The sealing ring 82 not only prevents gas leakage but also absorbs the minute vibrations generated during connection, further reducing the noise and wear of the system. This design not only enhances safety and sealing performance but also improves the convenience of user operation. The threaded connection and the design with the sealing ring 82 make installation and disassembly more simple and fast, support quick replacement and maintenance, thereby improving the service efficiency of the equipment and reducing the maintenance cost.

[0046] In this embodiment, the cylinder assembly 2 further includes a second collecting cylinder 9. The second collecting cylinder 9 is provided with a second air inlet cavity 91 and a second air outlet cavity 92. The second collecting cylinder 9 is connected to the second cylinder block 23 so that the second air inlet cavity 91 and the second air outlet cavity 92 are communicated with the second cylinder block 23. The silencing device 7 further includes a third silencing cavity 93 and a fourth silencing cavity 94 provided in the second collecting cylinder 9. The third silencing cavity 93 is communicated with the second air outlet cavity 92 through a third connection hole 921, and the fourth silencing cavity 94 is communicated with the second air inlet cavity 91 through a fourth connection hole 911; the second collecting cylinder 9 is also provided with a third external connection hole 931 and a fourth external connection hole 941. The third external connection hole 931, the third silencing cavity 93, the third connection hole 921, and the second air outlet cavity 92 are connected in sequence. The fourth external connection hole 941, the fourth silencing cavity 94, the fourth connection hole 911, and the second air inlet cavity 91 are connected in sequence.

[0047] With the above structure, since the third silencing cavity 93 and the fourth silencing cavity 94 are also provided in the second-stage cylinder 9, which has the same effect as that in the first-stage cylinder 6, when the gas enters the third silencing cavity 93 or the fourth silencing cavity 94, the gas will be dispersed and the gas flow rate will be reduced, reducing the pulse fluctuation of the gas, achieving the effect of stabilizing the gas flow, and the design of the cavity can absorb part of the sound energy in the air flow, thereby effectively reducing the noise caused by the air flow and achieving the silencing effect.

[0048] In this embodiment, the first-stage cylinder 6 includes a first outer cylinder head 601 and a first inner cylinder head 602. One end of the first inner cylinder head 602 is connected to the first outer cylinder head 601, the first inner cylinder head 602 is connected to the first cylinder block 21, the first outer cylinder head 601 is provided with a first air inlet cavity 61 and a first air outlet cavity 62, the first inner cylinder head 602 is provided with a first air inlet hole 6021 and a first air outlet hole 6022, the first air inlet hole 6021 is communicated with the first air inlet cavity 61, and the first air outlet hole 6022 is communicated with the first air outlet cavity 62; a first elastic valve plate 6023 is fixedly connected to the first inner cylinder head 602, and the first elastic valve plate 6023 is located between the first air outlet hole 6022 and the first air outlet cavity 62; a second elastic valve plate 6024 is fixedly connected to the first inner cylinder head 602, and the second elastic valve plate 6024 is located between the first air inlet hole 6021 and the first cylinder block 21.

[0049] With the above structure, when the first piston assembly 22 moves towards the first inner cylinder head 602, the air pressure in the first cylinder block 21 increases, the first elastic valve plate 6023 is pushed open, and the compressed air enters the first air outlet cavity 62 through the first air outlet hole 6022, and then enters the first silencing cavity 63 through the first connecting hole 621, and finally is discharged into the first air delivery pipeline 8 through the first external connection hole 631; when the first piston assembly 22 moves away from the first inner cylinder head 602, the air pressure in the first cylinder block 21 decreases, the second elastic valve plate 6024 opens, the air enters the second silencing cavity 64 through the second external connection hole 641, and then enters the first air inlet cavity 61 through the second connecting hole 611, and finally is input into the first cylinder block 21 through the first air inlet hole 6021. The repeated piston movement realizes the continuous gas compression and discharge through the opening and closing of the first elastic valve plate 6023 and the second elastic valve plate 6024.

[0050] Furthermore, both the first elastic valve plate 6023 and the second elastic valve plate 6024 are circularly designed and made of stainless steel material with a thickness of only 0.05 mm to increase durability, high-temperature resistance and the stress-bearing area. The circular structure helps to evenly distribute the pressure, reduce the single-point stress concentration and extend the service life of the valve plate. At the same time, the material is selected as elastic stainless steel, which provides sufficient elasticity and recovery ability to ensure the stable performance of the valve plate under high-frequency use. Moreover, the first elastic valve plate 6023 and the second elastic valve plate 6024 are fixed to the first inner cylinder head 602 by screws. This fixing method not only ensures the stability of the valve plate during movement but also prevents material deformation that may occur during long-term operation.

[0051] Furthermore, several heat dissipation grooves are provided on the outer side surface of the first outer cylinder head 601. These grooves effectively improve the heat dissipation efficiency by increasing the surface area and optimizing the air flow path.

[0052] Similarly, in this embodiment, the second gas collecting cylinder 9 includes a second outer cylinder head 901 and a second inner cylinder head 902. One end of the second inner cylinder head 902 is connected to the second outer cylinder head 901. The second inner cylinder head 902 is connected to the second cylinder block 23. The second outer cylinder head 901 is provided with a second air inlet cavity 91 and a second air outlet cavity 92. The second inner cylinder head 902 is provided with a second air inlet hole 9021 and a second air outlet hole 9022. The second air inlet hole 9021 communicates with the second air inlet cavity 91, and the second air outlet hole 9022 communicates with the second air outlet cavity 92. A third elastic valve plate 9023 is fixedly connected to the second inner cylinder head 902, and the third elastic valve plate 9023 is located between the second air outlet hole 9022 and the second air outlet cavity 92. A fourth elastic valve plate 9024 is fixedly connected to the second inner cylinder head 902, and the fourth elastic valve plate 9024 is located between the second air inlet hole 9021 and the second cylinder block 23.

[0053] Furthermore, several heat dissipation grooves are provided on the outer side surface of the second outer cylinder head 901. These grooves effectively improve the heat dissipation efficiency by increasing the surface area and optimizing the air flow path.

[0054] In this embodiment, a silencing cylinder head 903 is connected to the first silencing cavity 63 and the second silencing cavity 64, and a first sealing ring 9031 is provided between the silencing cylinder head 903 and the first silencing cavity 63 and the second silencing cavity 64. Similarly, a silencing cylinder head 903 is also connected to the third silencing cavity 93 and the fourth silencing cavity 94, and a first sealing ring 9031 is also provided between the silencing cylinder head 903 and the third silencing cavity 93 and the fourth silencing cavity 94. Through the above structure, the setting of the first sealing ring 9031 is used to absorb and reduce the vibration generated during the operation of the equipment, effectively reducing the noise level.

[0055] In this embodiment, a second sealing ring 9025 is provided between the first outer cylinder cover 601 and the first inner cylinder cover 602. Similarly, a second sealing ring 9025 is also provided between the second outer cylinder cover 901 and the second inner cylinder cover 902. A third sealing ring 9026 is provided between the first inner cylinder cover 602 and the first cylinder body 21, and a third sealing ring 9026 is provided between the second inner cylinder cover 902 and the second cylinder body 23. Through the above structure, the provision of the second sealing ring 9025 and the third sealing ring 9026 improves the sealing effect of the interface, not only prevents gas leakage, but also absorbs the slight vibration generated during the connection, further reducing the noise and wear of the system.

[0056] In this embodiment, the base housing 5 is provided with a plurality of mounting brackets 52 for connecting to external devices, and each mounting bracket 52 is provided with a mounting hole 521 and a mounting groove 522. The mounting hole 521 is coaxially arranged and connected with the mounting groove 522, and a rubber pad 523 is placed in the mounting groove 522. Through the above structure, the rubber pad 523 is designed to absorb and reduce the vibration generated during the operation of the equipment, thereby effectively reducing the noise level. The rubber pad 523 not only improves the seismic performance of the overall equipment, but also enhances the user's comfort and the safety of the equipment during use. The design of the mounting hole 521 not only provides stronger installation support and wider adaptability, but also significantly improves the seismic resistance and noise reduction capabilities by adding the rubber pad 523, thereby improving the environmental adaptability and long-term operation reliability of the air pump.

[0057] In this embodiment, motor 1 is a DC outer rotor brushless motor. Compared with brushed motors, brushless motors provide higher reliability and longer service life, and reduce maintenance requirements. In addition, the motor is equipped with an advanced control system that allows the user to adjust the speed as needed, thereby providing adaptability to multi-functional usage scenarios. The speed regulation function allows the motor to more accurately meet the needs of different working conditions, such as different speed and torque settings, increasing the flexibility and application range of the equipment. The DC outer rotor brushless motor provides a large starting torque and continuous running torque, and is particularly suitable for equipment that requires high power output, such as a twin-cylinder air pump. The high torque ensures stable power output even under high load conditions, significantly improving the overall performance and efficiency of the equipment.

[0058] The above are one or more implementation methods provided in combination with specific content, and it is not intended that the specific implementation of the utility model is limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or any technical deduction or replacement based on the concept of the utility model, shall be deemed to be within the protection scope of the utility model.

Claims

1. An air pump, characterized in that, include: A motor (1), the motor (1) comprising a motor housing (11) and an output shaft (12), wherein two ends of the output shaft (12) respectively extend through the outside of the motor housing (11); Cylinder assembly (2); One end of the output shaft (12) is drivingly connected to the cylinder assembly (2) via a reciprocating drive member (3), the other end of the output shaft (12) is provided with a heat dissipation device (4), the motor housing (11) has a first end surface (111) close to the heat dissipation device (4), and the first end surface (111) is provided with a heat dissipation through hole (1111).

2. The air pump according to claim 1, characterized in that, It also comprises a base shell (5), the base shell (5) being connected to the motor housing (11), and one end of the output shaft (12) connected to the cylinder assembly (2) extending into the base shell (5).

3. The air pump according to claim 2, wherein, The motor housing (11) has a second end face (112) arranged opposite to the first end face (111), the base housing (5) has a third end face (51) connected to the second end face (112), and the third end face (51) is provided with a plurality of heat dissipation grooves (511).

4. The air pump according to claim 2, wherein The cylinder assembly (2) comprises a first cylinder body (21) and a first piston assembly (22), wherein the first cylinder body (21) is connected to one end of the base housing (5), one end of the first piston assembly (22) is connected to the reciprocating drive member (3), and the other end of the first piston assembly (22) is connected to the first cylinder body (21), so that the motor (1) drives the first piston assembly (22) to reciprocate along the first cylinder body (21); the cylinder assembly (2) further comprises a second cylinder body (23) and a second piston assembly (24), wherein the second cylinder body (23) is connected to the other end of the base housing (5), one end of the second piston assembly (24) is connected to the reciprocating drive member (3), and the other end of the second piston assembly (24) is connected to the second cylinder body (23), so that the motor (1) drives the second piston assembly (24) to reciprocate along the second cylinder body (23).

5. The air pump according to claim 4, characterized in that, The first piston assembly (22) comprises a first connecting rod (221) and a first suction cup assembly (222) connected to the first connecting rod (221); the first connecting rod (221) is connected to the reciprocating drive member (3); the first suction cup assembly (222) is cooperatively connected to the first cylinder body (21); the motor (1) drives the first suction cup assembly (222) to perform reciprocating linear motion along the first cylinder body (21); the second piston assembly (24) comprises a second connecting rod (241) and a second suction cup assembly (242) connected to the second connecting rod (241); the second connecting rod (241) is connected to the reciprocating drive member (3); the second suction cup assembly (242) is cooperatively connected to the second cylinder body (23); the motor (1) drives the second suction cup assembly (242) to perform reciprocating linear motion along the second cylinder body (23).

6. The air pump according to claim 5, characterized in that, One end of the first connecting rod (221) connected to the reciprocating driving member (3) is provided with a first collar (2211), and the first collar (2211) is sleeved on the reciprocating driving member (3); one end of the second connecting rod (241) connected to the reciprocating driving member (3) is provided with a second collar (2411), and the second collar (2411) is sleeved on the reciprocating driving member (3).

7. The air pump according to claim 6, wherein, The reciprocating driving member (3) includes a first eccentric wheel (31) and a second eccentric wheel (32). The first eccentric wheel (31) and the second eccentric wheel (32) share the same rotation center, and the central axes of the first eccentric wheel (31) and the second eccentric wheel (32) are respectively arranged on both sides of the rotation center. A first bearing (311) is sleeved on the outer periphery of the first eccentric wheel (31), and a second bearing (321) is sleeved on the outer periphery of the second eccentric wheel (32). The first collar (2211) is sleeved on the first bearing (311), and the second collar (2411) is sleeved on the second bearing (321); the eccentricity of the first eccentric wheel (31) is equal to the eccentricity of the second eccentric wheel (32).

8. The air pump according to claim 2, wherein A third bearing (121) is sleeved on the end of the output rotating shaft (12) far from the heat dissipation device (4).

9. The air pump according to claim 4, characterized in that, The cylinder assembly (2) further includes a first air collecting cylinder (6). The first air collecting cylinder (6) is provided with a first air inlet chamber (61) and a first air outlet chamber (62). The first air collecting cylinder (6) is connected to the first cylinder block (21) so that the first air inlet chamber (61) and the first air outlet chamber (62) are communicated with the first cylinder block (21); the cylinder assembly (2) further includes a second air collecting cylinder (9). The second air collecting cylinder (9) is provided with a second air inlet chamber (91) and a second air outlet chamber (92). The second air collecting cylinder (9) is connected to the second cylinder block (23) so that the second air inlet chamber (91) and the second air outlet chamber (92) are communicated with the second cylinder block (23).

10. A gas pump according to claim 9, characterized in that, The first collecting cylinder (6) includes a first outer cylinder head (601) and a first inner cylinder head (602). One end of the first inner cylinder head (602) is connected to the first outer cylinder head (601), and the first inner cylinder head (602) is connected to the first cylinder block (21). The first outer cylinder head (601) is provided with the first intake cavity (61) and the first exhaust cavity (62). The first inner cylinder head (602) is provided with a first intake hole (6021) and a first exhaust hole (6022). The first intake hole (6021) communicates with the first intake cavity (61), and the first exhaust hole (6022) communicates with the first exhaust cavity (62). The second collecting cylinder (9) includes a second outer cylinder head (901) and a second inner cylinder head (902). One end of the second inner cylinder head (902) is connected to the second outer cylinder head (901), and the second inner cylinder head (902) is connected to the second cylinder block (23). The second outer cylinder head (901) is provided with the second intake cavity (91) and the second exhaust cavity (92). The second inner cylinder head (902) is provided with a second intake hole (9021) and a second exhaust hole (9022). The second intake hole (9021) communicates with the second intake cavity (91), and the second exhaust hole (9022) communicates with the second exhaust cavity (92).

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