Air pump

Abstract

The utility model provides an air pump which comprises a motor provided with an output rotating shaft. The air cylinder assembly comprises a first cylinder body and a first piston assembly, one end of the first piston assembly is in transmission connection with the output rotating shaft through a reciprocating driving part, and the other end of the first piston assembly is connected with the first cylinder body, so that the motor drives the first piston assembly to reciprocate along the first cylinder body; 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 with the first cylinder body, so that the first air inlet cavity and the first air outlet cavity are communicated with the first cylinder body; and the silencing device is arranged on the first air collecting cylinder. By means of the structure, when gas rapidly flows in the first gas collecting cylinder, dispersion and speed reduction can occur, noise reduction is effectively achieved, and therefore the silencing effect is achieved.

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 core components of equipment in a variety of industries, including medical treatment, beauty and body care, health and wellness, rehabilitation therapy, energy conservation and environmental protection, small household appliances, printing, vacuum packaging, automation, food processing, and automotive manufacturing. Equipment in these fields not only requires air pumps to provide efficient and stable gas delivery to ensure operational precision and efficient operation, but also requires air pumps to have a compact design to adapt to space-constrained application environments and improve the portability and aesthetics of the overall equipment.

[0003] However, despite their widespread use, existing air pumps face a significant operational challenge: high noise levels. The rapid movement of airflow and mechanical components during gas delivery often generates significant noise, which not only reduces operator comfort but can also have a lasting negative impact on the surrounding environment. This issue is particularly prominent in medical or laboratory equipment, where a silent environment is crucial. Therefore, there is an urgent need for new technical solutions that can effectively reduce noise levels while maintaining air pump performance and a compact design. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an air pump, which effectively reduces the noise caused by the rapid flow of gas during operation of the air pump, thereby improving the comfort and environmental friendliness 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 having an output shaft;

[0008] a cylinder assembly comprising a first cylinder body and a first piston assembly, one end of the first piston assembly being transmission-connected to the output shaft via a reciprocating drive member, and the other end of the first piston assembly being connected to the first cylinder body so that the motor drives the first piston assembly to reciprocate along the first cylinder body;

[0009] a first air collecting cylinder, the first air collecting cylinder being provided with a first air inlet cavity and a first air outlet cavity, the first air collecting cylinder being connected to the first cylinder body so that the first air inlet cavity and the first air outlet cavity are in communication with the first cylinder body;

[0010] A silencer is provided on the first air collecting cylinder.

[0011] As an improvement of the present invention, the silencer device includes a first silencer chamber and a second silencer chamber provided in the first air collecting cylinder. The first silencer chamber is connected to the first air outlet chamber through a first connecting hole, and the second silencer chamber is connected to the first air inlet chamber through a second connecting hole.

[0012] As an improvement of the present invention, the first air collecting cylinder is further provided with a first external connection hole and a second external connection hole, the first external connection hole, the first silencer chamber, the first connection hole and the first air outlet chamber are connected in sequence, and the second external connection hole, the second silencer chamber, the second connection hole and the first air inlet chamber are connected.

[0013] As an improvement of the present invention, the cylinder assembly also includes a second cylinder body and a second piston assembly, one end of the second piston assembly is transmission-connected to the output shaft, 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; the air pump also includes a second air collecting cylinder, the second air collecting cylinder is provided with a second air inlet chamber and a second air outlet chamber, the second air collecting cylinder is connected to the second cylinder body, so that the second air inlet chamber and the second air outlet chamber are connected to the second cylinder body; the silencer device also includes a third silencer chamber and a fourth silencer chamber provided in the second air collecting cylinder, the third silencer chamber is connected to the second air outlet chamber through a third connecting hole, and the fourth silencer chamber is connected to the second air inlet chamber through a fourth connecting hole; the second air collecting cylinder is also provided with a third external hole and a fourth external hole, the third external hole, the third silencer chamber, the third connecting hole and the second air outlet chamber are connected in sequence, and the fourth external hole, the fourth silencer chamber, the fourth connecting hole and the second air inlet chamber are connected in sequence.

[0014] As an improvement of the present invention, the first external connection hole is connected to the first gas pipeline through a thread, and the second external connection hole is connected to the second gas pipeline through a thread; sealing rings are provided between the first external connection hole and the first gas pipeline and between the second external connection hole and the second gas pipeline.

[0015] As an improvement of the present invention, the motor has a motor housing, and the air pump further includes 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.

[0016] As an improvement of the present invention, 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 drive member, the first suction cup assembly is cooperatively connected to the first cylinder body, and the motor drives the first suction cup assembly to perform reciprocating linear motion along the first cylinder body; a first ring is provided at one end of the first connecting rod connected to the reciprocating drive member, and the first ring is sleeved on the reciprocating drive member.

[0017] As an improvement of the present invention, 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 drive member, the second suction cup assembly is cooperatively connected to the second cylinder body, and the motor drives the second suction cup assembly to perform reciprocating linear motion along the second cylinder body; a second ring is provided at one end of the second connecting rod connected to the reciprocating drive member, and the second ring is sleeved on the reciprocating drive member.

[0018] As an improvement of the present invention, the reciprocating drive 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, the first eccentric wheel is provided with a first bearing on the outer periphery, the second eccentric wheel is provided with a second bearing on the outer periphery, the first ring is provided on the first bearing, and the second ring is provided on the second bearing; the eccentric distance of the first eccentric wheel is equal to the eccentric distance of the second eccentric wheel.

[0019] As an improvement of the present invention, the first air collecting cylinder includes a first outer cylinder head and a first inner cylinder head, one end of the first inner cylinder head is connected to the first outer cylinder head, the first inner cylinder head is connected to the first cylinder body, the first outer cylinder head is provided with the first air inlet cavity and the first air outlet cavity, the first inner cylinder head is provided with a first air inlet hole and a first air outlet hole, the first air inlet hole is connected to the first air inlet cavity, and the first air outlet hole is connected to the first air outlet cavity; the first inner cylinder head is fixedly connected to a first elastic valve plate, the first elastic valve plate is located between the first air outlet hole and the first air outlet cavity; the first inner cylinder head is fixedly connected to a second elastic valve plate, the second elastic valve plate is located between the first air inlet hole and the first cylinder body.

[0020] The beneficial effects of the utility model are as follows: the utility model provides an air pump, including a motor, the motor having an output shaft; a cylinder assembly, the cylinder assembly including a first cylinder body and a first piston assembly, one end of the first piston assembly is transmission-connected to the output shaft via a reciprocating drive member, and the other end of the 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; a first air collecting cylinder, the first air collecting cylinder is provided with a first air inlet chamber and a first air outlet chamber, the first air collecting cylinder is connected to the first cylinder body, so that the first air inlet chamber and the first air outlet chamber are in communication with the first cylinder body; a silencer, the silencer is arranged on the first air collecting cylinder. Through the above structure, under the drive of the motor, the reciprocating drive member rotates with the rotation of the output shaft, and the first piston assembly will reciprocate following the rotation of the reciprocating drive member. The first piston assembly reciprocates in the first cylinder body, causing the air pressure in the first cylinder body to change, thereby realizing the compression and suction of the gas. The compressed or inhaled gas will be sucked in or discharged through the first gas collecting cylinder. Since the first gas collecting cylinder is provided with a silencer, when the gas flows rapidly in the first gas collecting cylinder, it can be dispersed and decelerated, effectively reducing the noise, thereby achieving a silencer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is an exploded view of the utility model;

[0025] Figure 3 It is a cross-sectional view of the utility model;

[0026] Figure 4 It is a partial structural exploded view of the utility model;

[0027] Figure 5 This is an exploded view of the first cylinder of the present invention;

[0028] Figure 6 This is an exploded view of the second cylinder of the present invention. DETAILED DESCRIPTION

[0029] refer to Figures 1 to 6 , an air pump comprising:

[0030] The motor 1 has an output shaft 12;

[0031] The cylinder assembly 2 includes a first cylinder body 21 and a first piston assembly 22. One end of the first piston assembly 22 is connected to the output shaft 12 via 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.

[0032] A first air collecting cylinder 6, which is provided with a first air inlet cavity 61 and a first air outlet cavity. The first air collecting cylinder 6 is connected to the first cylinder body 21 so that the first air inlet cavity 61 and the first air outlet cavity are in communication with the first cylinder body 21;

[0033] The silencer 7 is provided on the first air collecting cylinder 6 .

[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 first piston assembly 22 will reciprocate following the rotation of the reciprocating drive member 3. The first piston assembly 22 reciprocates in the first cylinder body 21, causing the air pressure in the first cylinder body 21 to change, thereby realizing the compression and suction of the gas. The compressed or inhaled gas will be sucked in or discharged through the first gas collecting cylinder 6. Since the first gas collecting cylinder 6 is provided with a silencer 7, when the gas flows rapidly in the first gas collecting cylinder 6, it can be dispersed and decelerated, thereby effectively reducing the noise and achieving a silencer effect.

[0035] In this embodiment, the silencer 7 includes a first silencer chamber 63 and a second silencer chamber 64 provided in the first air collecting cylinder 6. The first silencer chamber 63 is connected to the first air outlet chamber through a first connecting hole 621, and the second silencer chamber 64 is connected to the first air inlet chamber 61 through a second connecting hole 611. The first silencer chamber 63 and the second silencer chamber 64 are both approximately cubic inner chambers. Through the above structure, when the gas enters the first air inlet chamber 61 or the first air outlet chamber, it must pass through the first silencer chamber 63 or the second silencer chamber 64 added to the first air collecting cylinder 6. Compared with the existing air collecting cylinder, the gas will disperse and reduce the gas flow rate when entering the first silencer chamber 63 or the second silencer chamber 64, which reduces the pulse fluctuation of the gas and achieves a stabilizing effect on the gas. In addition, the design of the cavity can absorb part of the sound energy in the airflow, thereby effectively reducing the noise caused by the airflow and achieving a silencer effect.

[0036] In this embodiment, the first gas collecting cylinder 6 is further provided with a first external connection hole 631 and a second external connection hole 641. The first external connection hole 631, the first silencer chamber 63, the first connection hole 621 and the first air outlet chamber are connected in sequence, and the second external connection hole 641, the second silencer chamber 64, the second connection hole 611 and the first air inlet chamber 61 are connected. Furthermore, the first external connection hole 631 is connected to the first gas pipeline 8 by a thread, and the second external connection hole 641 is connected to the second gas pipeline 81 by a thread; a sealing ring 82 is provided between the first external connection hole 631 and the first gas pipeline 8, and between the second external connection hole 641 and the second gas pipeline 81. Through the above structure, the first gas pipeline 8 and the first external connection hole 631 are connected by a thread, which provides higher connection stability and sealing performance, allowing the first gas 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 of gas transmission operation. A sealing ring 82 is also installed between the first gas pipeline 8 and the first external connection hole 631. The addition of sealing ring 82 significantly improves the sealing effect of the interface. Sealing ring 82 not only prevents gas leakage but also absorbs the slight vibration generated during the connection, further reducing system noise and wear. This design not only enhances safety and sealing, but also improves user convenience. The threaded connection and the design with sealing ring 82 make installation and removal easier and faster, supporting rapid replacement and maintenance, thereby improving equipment service efficiency and reducing maintenance costs.

[0037] In this embodiment, the cylinder assembly 2 also includes a second cylinder 23 and a second piston assembly 24. One end of the second piston assembly 24 is transmission-connected to the output shaft 12, and the other end of the second piston assembly 24 is connected to the second cylinder 23, so that the motor 1 drives the second piston assembly 24 to reciprocate along the second cylinder 23; the air pump also includes a second air collecting cylinder 9, which 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 23 so that the second air inlet chamber 91 and the second air outlet chamber 92 are connected to the second cylinder 23; the silencer 7 also It includes a third silencer chamber 93 and a fourth silencer chamber 94 provided in the second air collecting cylinder 9, the third silencer chamber 93 is connected to the second air outlet chamber 92 through a third connecting hole 921, and the fourth silencer chamber 94 is connected to the second air inlet chamber 91 through a fourth connecting hole 911; the second air collecting cylinder 9 is also provided with a third external hole 931 and a fourth external hole 941, the third external hole 931, the third silencer chamber 93, the third connecting hole 921 and the second air outlet chamber 92 are connected in sequence, and the fourth external hole 941, the fourth silencer chamber 94, the fourth connecting hole 911 and the second air inlet chamber 91 are connected in sequence.

[0038] Through the above-mentioned structure, the design of the second cylinder 23 increases the air flow output of the air pump, making the air pump have a smaller volume while being able to output a larger flow of gas. Similarly, the reciprocating motion of the second piston assembly 24 in the second cylinder 23 causes the air pressure in the second cylinder 23 to change, thereby achieving gas compression and suction. The compressed or sucked gas is then sucked in or discharged through the second air collecting cylinder 9. Furthermore, since the third and fourth silencer chambers 93 and 94 are also provided in the second air collecting cylinder 9, the gas will disperse and reduce its flow rate when entering the third and fourth silencer chambers 93 and 94, which have the same effect as in the first air collecting cylinder 6. This reduces gas pulse fluctuations and achieves a stabilizing effect on the gas flow. In addition, the cavity design can absorb some of the sound energy in the airflow, thereby effectively reducing the noise caused by the airflow and achieving a sound-absorbing effect.

[0039] In this embodiment, the motor 1 has a motor housing 11, and the air pump also includes a base housing 5, which 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. The other end of the output shaft 12 is provided with a heat dissipation device 4, and the motor housing 11 has a first end face 111 close to the heat dissipation device 4, and the first end face 111 is provided with a heat dissipation hole 1111. Specifically, the heat dissipation device 4 is a fan. Through the above structure, a fan is provided 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. In addition, since a plurality of heat dissipation holes 1111 are provided on the first end face 111 of the motor housing 11 opposite to the fan, the airflow blown out by the fan 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.

[0040] Furthermore, the housing has a second end face 112 opposite the first end face 111. The base housing 5 has a third end face 51 connected to the second end face 112. The third end face 51 is provided with a plurality of heat dissipation grooves 511. Through this structure, these grooves effectively improve heat dissipation efficiency by increasing the surface area and optimizing the air flow path. The groove design not only helps dissipate heat generated by the operation of the motor 1 but also reduces the thermal burden of the entire device in high-temperature environments, thereby improving the device's operational stability and extending its service life.

[0041] 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 body 21. The motor 1 drives the first suction cup assembly 222 to perform reciprocating linear motion along the first cylinder body 21; the end of the first connecting rod 221 connected to the reciprocating drive member 3 is provided with a first ring 2211, and the first ring 2211 is sleeved on the reciprocating drive member 3.

[0042] Furthermore, 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 body 23. The motor 1 drives the second suction cup assembly 242 to reciprocate linearly along the second cylinder body 23. The end of the second connecting rod 241 connected to the reciprocating drive member 3 is provided with a second collar 2411, which is sleeved on the reciprocating drive member 3. Through the above structure, the first connecting rod 221 and the second connecting rod 241 are arranged in a complementary manner in an upper and lower direction. 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 the reciprocating drive member 3 drives the first and second connecting rods 221 and 241 to reciprocate without interfering with each other.

[0043] In this embodiment, the reciprocating drive 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. The first eccentric wheel 31 is provided with a first bearing 311 on the periphery, and the second eccentric wheel 32 is provided with a second bearing 321 on the periphery. The first ring 2211 is provided on the first bearing 311, and the second ring 2411 is provided on the second bearing 321. The eccentricity of the first eccentric wheel 31 is equal to the eccentricity of the second eccentric wheel 32. Through the above structure, the first eccentric wheel 31 is connected to the second eccentric wheel 32 and has 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, and the first eccentric wheel 31 and the second eccentric wheel 32 respectively drive the first connecting rod 221 and the second connecting rod 241, and the eccentric distance of the first eccentric wheel 31 is equal to the eccentric distance of the second eccentric wheel 32, so that the movement distances of the first connecting rod 221 and the second connecting rod 241 are equal, the movement directions are symmetrical to each other, and compensate each other, thereby offsetting the influence of the eccentric force on the output shaft 12 of the motor 1 during movement, reducing the resonance inside the air pump, and extending the service life of the air pump.

[0044] In this embodiment, the first air collecting cylinder 6 includes a first outer cylinder cover 601 and a first inner cylinder cover 602. One end of the first inner cylinder cover 602 is connected to the first outer cylinder cover 601, and the first inner cylinder cover 602 is connected to the first cylinder body 21. The first outer cylinder cover 601 is provided with a first air inlet chamber 61 and a first air outlet chamber. The first inner cylinder cover 602 is provided with a first air inlet hole 6021 and a first air outlet hole 6022. The first air inlet hole 6021 is connected to the first air inlet chamber 61, and the first air outlet hole 6022 is connected to the first air outlet chamber; the first inner cylinder cover 602 is fixedly connected to a first elastic valve plate 6023, and the first elastic valve plate 6023 is located between the first air outlet hole 6022 and the first air outlet chamber; the first inner cylinder cover 602 is fixedly connected to a second elastic valve plate 6024, and the second elastic valve plate 6024 is located between the first air inlet hole 6021 and the first cylinder body 21.

[0045] Through the above structure, when the first piston assembly 22 moves toward the first inner cylinder cover 602, the air pressure in the first cylinder body 21 increases, the first elastic valve plate 6023 is pushed open, and the compressed air enters the first air outlet chamber through the first air outlet hole 6022, and then enters the first muffler chamber 63 through the first connecting hole 621, and finally is discharged into the first air supply pipe 8 through the first external hole 631; when the first piston assembly 22 moves in the direction away from the first inner cylinder cover 602, the air pressure in the first cylinder body 21 decreases, the second elastic valve plate 6024 opens, and the air enters the second muffler chamber 64 through the second external hole 641, and then enters the first air inlet chamber 61 through the second connecting hole 611, and finally is input into the first cylinder body 21 through the first air inlet hole 6021. The repeated piston movement realizes continuous gas compression and discharge through the opening and closing of the first elastic valve plate 6023 and the second elastic valve plate 6024.

[0046] Furthermore, both the first elastic valve disc 6023 and the second elastic valve disc 6024 adopt a circular design, made of stainless steel material only 0.05mm thick, to increase durability, high temperature resistance, and stress-bearing area. The circular structure helps to evenly distribute pressure, reduce single-point stress concentration, and extend the service life of the valve disc. At the same time, the material selected is elastic stainless steel, which provides sufficient elasticity and recovery capacity to ensure the stable performance of the valve disc under high-frequency use. In addition, the first elastic valve disc 6023 and the second elastic valve disc 6024 are fixed to the first inner cylinder cover 602 with screws. This fixing method not only ensures the stability of the valve disc during movement, but also prevents material deformation that may occur during long-term operation.

[0047] Similarly, in this embodiment, the second air 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 body 23, the second outer cylinder head 901 is provided with a second air intake chamber 91 and a second air outlet chamber 92, the second inner cylinder head 902 is provided with a second air intake hole 9021 and a second air outlet hole 9022, the second air intake hole 9021 is connected to the second air intake chamber 91, and the second air outlet hole 9022 is connected to the second air outlet chamber 92; the second inner cylinder head 902 is fixedly connected to the third elastic valve plate 9023, and the third elastic valve plate 9023 is located between the second air outlet hole 9022 and the second air outlet chamber 92; the second inner cylinder head 902 is fixedly connected to the fourth elastic valve plate 9024, and the fourth elastic valve plate 9024 is located between the second air intake hole 9021 and the second cylinder body 23.

[0048] In this embodiment, the first and second muffler chambers 63 and 64 are connected to a muffler cover 903, with a first sealing ring 9031 disposed between the cover 903 and the first and second muffler chambers 63 and 64. Similarly, the third and fourth muffler chambers 93 and 94 are also connected to the muffler cover 903, with first sealing rings 9031 disposed between the cover 903 and the third and fourth muffler chambers 93 and 94. Through this structure, the first sealing ring 9031 is configured to absorb and reduce vibrations generated during operation of the device, effectively reducing noise levels.

[0049] In this embodiment, a second sealing ring 9025 is provided between the first outer cylinder head 601 and the first inner cylinder head 602. Similarly, a second sealing ring 9025 is provided between the second outer cylinder head 901 and the second inner cylinder head 902. A third sealing ring 9026 is provided between the first inner cylinder head 602 and the first cylinder body 21, and a third sealing ring 9026 is provided between the second inner cylinder head 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 preventing gas leakage, but also absorbing the slight vibration generated during the connection, further reducing noise and wear of the system.

[0050] In this embodiment, a third bearing 121 is mounted on the end of the output shaft 12, distal from the heat sink 4. This structure, by adding a bearing to the output shaft 12 of the motor 1, improves the stability of the entire drive system and reduces wear. The use of this bearing not only enhances the structural stability of the reciprocating drive element 3 but also extends the service life of the air pump.

[0051] In this embodiment, the base housing 5 is provided with a plurality of mounting brackets 52 for connecting to external devices. 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 to 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. 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.

[0052] 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 dual-cylinder air pumps. The high torque ensures stable power output even under high load conditions, significantly improving the overall performance and efficiency of the equipment.

[0053] The above descriptions provide one or more embodiments in conjunction with the specific content, and do not limit the specific implementation of the present invention to these descriptions. Any similarity or similarity with the methods, structures, etc. of the present invention, or any technical deduction or substitution based on the concept of the present invention, shall be deemed to be within the scope of protection of the present invention.

Claims

1. An air pump, characterized in that: include: A motor (1), wherein the motor (1) has an output shaft (12); A cylinder assembly (2), the cylinder assembly (2) comprising a first cylinder body (21) and a first piston assembly (22), one end of the first piston assembly (22) being transmission-connected to the output shaft (12) via a reciprocating drive member (3), and the other end of the first piston assembly (22) being 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); a first air collecting cylinder (6), the first air collecting cylinder (6) being provided with a first air inlet cavity (61) and a first air outlet cavity, the first air collecting cylinder (6) being connected to the first cylinder body (21) so that the first air inlet cavity (61) and the first air outlet cavity are in communication with the first cylinder body (21); A silencer (7), wherein the silencer (7) is provided on the first air collecting cylinder (6).

2. An air pump according to claim 1, characterized in that: The muffler device (7) comprises a first muffler chamber (63) and a second muffler chamber (64) provided in the first air collecting cylinder (6); the first muffler chamber (63) is connected to the first air outlet chamber via a first connecting hole (621); and the second muffler chamber (64) is connected to the first air inlet chamber (61) via a second connecting hole (611).

3. An air pump according to claim 2, characterized in that: The first air collecting cylinder (6) is further provided with a first external connection hole (631) and a second external connection hole (641); the first external connection hole (631), the first muffler cavity (63), the first connection hole (621) and the first air outlet cavity are sequentially connected; the second external connection hole (641), the second muffler cavity (64), the second connection hole (611) and the first air inlet cavity (61) are connected.

4. An air pump according to claim 1, characterized in that: The cylinder assembly (2) further comprises a second cylinder body (23) and a second piston assembly (24), one end of the second piston assembly (24) is transmission-connected to the output shaft (12), 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); the air pump further comprises 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 body (23), so that the second air inlet chamber (91) and the second air outlet chamber (92) are in communication with the second cylinder body (23); the muffler device (7) further comprises A third silencer chamber (93) and a fourth silencer chamber (94) are provided in the second air collecting cylinder (9), wherein the third silencer chamber (93) is connected to the second air outlet chamber (92) via a third connecting hole (921), and the fourth silencer chamber (94) is connected to the second air inlet chamber (91) via a fourth connecting hole (911); the second air collecting cylinder (9) is further provided with a third external connecting hole (931) and a fourth external connecting hole (941), wherein the third external connecting hole (931), the third silencer chamber (93), the third connecting hole (921) and the second air outlet chamber (92) are connected in sequence, and the fourth external connecting hole (941), the fourth silencer chamber (94), the fourth connecting hole (911) and the second air inlet chamber (91) are connected in sequence.

5. An air pump according to claim 3, characterized in that: The first external connection hole (631) is connected to a first gas pipeline (8) via a thread, and the second external connection hole (641) is connected to a second gas pipeline (81) via a thread; a sealing ring (82) is provided between the first external connection hole (631) and the first gas pipeline (8), and between the second external connection hole (641) and the second gas pipeline (81).

6. An air pump according to claim 1, characterized in that: The motor (1) has a motor housing (11), and the air pump further includes a base housing (5), 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).

7. An air pump according to claim 1, characterized in that: 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), the first suction cup assembly (222) is cooperatively connected to the first cylinder body (21), and the motor (1) drives the first suction cup assembly (222) to perform reciprocating linear motion along the first cylinder body (21); one end of the first connecting rod (221) connected to the reciprocating drive member (3) is provided with a first ring (2211), and the first ring (2211) is sleeved on the reciprocating drive member (3).

8. An air pump according to claim 4, characterized in that: 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), the second suction cup assembly (242) is cooperatively connected to the second cylinder body (23), and the motor (1) drives the second suction cup assembly (242) to perform reciprocating linear motion along the second cylinder body (23); a second ring (2411) is provided at one end of the second connecting rod (241) connected to the reciprocating drive member (3), and the second ring (2411) is sleeved on the reciprocating drive member (3).

9. An air pump according to claim 7, characterized in that: The reciprocating drive member (3) includes a first eccentric wheel (31) and a second eccentric wheel (32), wherein 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, and a first bearing (311) is provided on the outer periphery of the first eccentric wheel (31).

10. An air pump according to claim 1, characterized in that: The first air collecting cylinder (6) comprises a first outer cylinder cover (601) and a first inner cylinder cover (602), one end of the first inner cylinder cover (602) is connected to the first outer cylinder cover (601), the first inner cylinder cover (602) is connected to the first cylinder body (21), the first outer cylinder cover (601) is provided with the first air inlet cavity (61) and the first air outlet cavity, the first inner cylinder cover (602) is provided with a first air inlet hole (6021) and a first air outlet hole (6022), the first air inlet hole (6021) is connected to the first air outlet hole (6022), and the first air inlet hole (6021) is connected to the first air outlet hole (6022). The first air inlet cavity (61) is connected, and the first air outlet hole (6022) is connected to the first air outlet cavity; the first inner cylinder cover (602) is fixedly connected to a first elastic valve plate (6023), and the first elastic valve plate (6023) is located between the first air outlet hole (6022) and the first air outlet cavity; the first inner cylinder cover (602) is fixedly connected to a second elastic valve plate (6024), and the second elastic valve plate (6024) is located between the first air inlet hole (6021) and the first cylinder body (21).

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