Efficient diaphragm air pump

Abstract

The utility model belongs to the technical field of diaphragm air pumps, and particularly relates to an efficient diaphragm air pump which comprises a pump body valve seat, a sealing installation seat arranged on the top of the pump body valve seat, a top cover arranged on the sealing installation seat, an air inlet and outlet valve block arranged between the sealing installation seat and the top cover, and an air inlet and an air outlet which are arranged on the air inlet and outlet valve block side by side. An air inlet tongue piece is arranged in the air inlet hole, an air outlet tongue piece is arranged in the air outlet hole, a first air outlet and a first air inlet are formed in the sealing installation seat, a second air outlet and a second air inlet are formed in the top cover, and the first air outlet, the air outlet tongue piece and the second air inlet are aligned in the axial direction. The first air inlet, the air inlet tongue piece and the second air outlet are aligned in the axial direction, through the simple design of the air outlet tongue piece and the air inlet tongue piece on the air inlet and outlet valve block, air outflow and air inflow of the diaphragm air pump can be closed and started through the elasticity of the air outlet tongue piece and the air inlet tongue piece, the initial pressure is small, and the bouncing and pressing speed is high; and the device is easy to manufacture and inspect.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm air pumps, and particularly relates to an efficient diaphragm air pump. Background Art

[0002] ‌In existing micro vacuum pumps, the commonly used inlet and outlet valve plates are umbrella-shaped structures. When the air pump intakes air, the inlet valve plate opens, and at the same time, the outlet valve plate is closed by the vacuum suction. However, during high-speed operation, the umbrella-shaped valve plate has many deficiencies: 1. The starting pressure required to open the umbrella-shaped valve plate is relatively large, resulting in losses and requiring a motor with a relatively high power; 2. The structure of the umbrella-shaped valve plate itself is complex, making manufacturing troublesome and having a certain defective rate, so the cost is relatively high; 3. During high-speed operation, the umbrella-shaped valve plate continuously opens and closes, generating relatively large noise and affecting the user experience; 4. The contact area between the umbrella-shaped valve plate and the valve seat is relatively large. When sealing, all the small holes on the valve seat need to be sealed. During high-speed operation, a certain amount of heat is generated each time it is sealed. Therefore, after the air pump operates continuously for a period of time, the contact surface of the valve seat will have a phenomenon of slight melting, resulting in a decrease in the exhaust volume and a reduction in efficiency.

[0003] At the same time, there is also a common phenomenon in current micro vacuum pumps: when the outlet pressure is about to reach the peak value, at this time, the outlet pressure is the highest, the outlet valve opens, and the back thrust on the connecting rod is the largest. Often at this time, the connecting rod assembly cannot cross over and gets stuck in the current position, which we call the dead point position. Therefore, many designers can only solve this problem by increasing the power of the motor, which increases the cost. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model provides an efficient diaphragm air pump. Through the simple design of the outlet tongue piece and the inlet tongue piece on the inlet and outlet valve plate, it can rely on its own elasticity to close and open the gas outflow and inflow of the diaphragm air pump, and its initial pressure is relatively small, and the speed of popping up and pressing down is also relatively fast, so as to solve the problems that the structure of the umbrella-shaped valve plate itself is complex, manufacturing is troublesome, the starting pressure for opening is relatively large, there are losses, and thus the cost is relatively high.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: An efficient diaphragm air pump includes a pump body valve seat. A sealing mounting seat is arranged on the top of the pump body valve seat, a top cover is arranged on the sealing mounting seat, an inlet and outlet valve plate is arranged between the sealing mounting seat and the top cover. An intake hole and an outlet hole are arranged side by side on the inlet and outlet valve plate. An intake tongue piece is arranged inside the intake hole, and an outlet tongue piece is arranged inside the outlet hole. A first outlet and a first inlet are arranged on the sealing mounting seat, a second outlet and a second inlet are arranged on the top cover. The first outlet, the outlet tongue piece, and the second inlet are coaxially arranged, and the first inlet, the intake tongue piece, and the second outlet are coaxially arranged.

[0006] Preferably, the intake tongue piece and the exhaust tongue piece have the same shape but opposite bending directions.

[0007] Preferably, the sealing edge of the intake tongue piece is cooperatively connected with the sealing surface of the second intake port, and the sealing edge of the exhaust tongue piece is cooperatively connected with the sealing surface of the first exhaust port.

[0008] Preferably, the intake tongue piece and the exhaust tongue piece are of disc structures, the diameter of the intake tongue piece is greater than the inner diameter of the second intake port, and the diameter of the exhaust tongue piece is greater than the inner diameter of the first exhaust port.

[0009] Preferably, a diaphragm is further provided on the pump body valve seat, and a pressure relief small hole is provided on the diaphragm.

[0010] Preferably, the diaphragm is of an umbrella-like structure, and a groove matching the top end of the diaphragm is provided at the bottom of the sealing mounting seat.

[0011] Preferably, a servo motor is installed on the pump body valve seat, the output end of the servo motor is connected with a connecting rod, and the top end of the connecting rod is connected with the diaphragm.

[0012] Preferably, the air inlet and outlet valve piece is made of integrally formed silica gel material.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: An efficient diaphragm air pump proposed by the present utility model can rely on its own elasticity to close and open the gas outflow and inflow of the diaphragm air pump through the simple design of the exhaust tongue piece and the intake tongue piece on the air inlet and outlet valve piece, making the initial pressure relatively small, and the speed of bouncing up and pressing down is also relatively fast, making it easy to manufacture and inspect.

[0014] By contacting the exhaust tongue piece and the intake tongue piece with the air inlet and outlet pipes, the gas outflow and inflow of the diaphragm air pump can be opened and closed, reducing the contact area, generating limited heat during high-speed operation, and not causing micro-melting phenomenon on the surface of the valve cover after a long time. Moreover, due to the small contact area, the formed noise is also relatively small.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure of an efficient diaphragm air pump Figure One .

[0017] Figure 2 is a schematic three-dimensional structure of an efficient diaphragm air pump Figure Two .

[0018] Figure 3It is an exploded perspective view of a highly efficient diaphragm air pump.

[0019] Figure 4 It is a cross-sectional view of a highly efficient diaphragm air pump.

[0020] Figure 5 It is an exploded perspective view of the sealing mounting seat of a highly efficient diaphragm air pump.

[0021] Figure 6 It is a schematic perspective view of the diaphragm of a highly efficient diaphragm air pump.

[0022] Figure 7 It is a schematic perspective view of the air inlet and outlet valve plate of a highly efficient diaphragm air pump.

[0023] In the figure: 1. Pump body valve seat; 2. Sealing mounting seat; 21. First air outlet; 22. First air inlet; 3. Top cover; 31. Second air outlet; 32. Second air inlet; 4. Air inlet and outlet valve plate; 41. Air inlet hole; 42. Air outlet hole; 43. Air inlet tongue; 44. Air outlet tongue; 5. Diaphragm; 6. Pressure relief small hole; 7. Servo motor; 8. Connecting rod; 9. Groove. Detailed implementation mode

[0024] The following will make a specific and detailed description of the implementation mode of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0025] Combined with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 6 As shown in, a highly efficient diaphragm air pump includes a pump body valve seat 1. A sealing mounting seat 2 is arranged at the top of the pump body valve seat 1. A top cover 3 is arranged on the sealing mounting seat 2. An air inlet and outlet valve plate 4 is arranged between the sealing mounting seat 2 and the top cover 3. An air inlet hole 41 and an air outlet hole 42 are arranged side by side on the air inlet and outlet valve plate 4. An air inlet tongue 43 is arranged inside the air inlet hole 41, and an air outlet tongue 44 is arranged inside the air outlet hole 42. A first air outlet 21 and a first air inlet 22 are arranged on the sealing mounting seat 2. A second air outlet 31 and a second air inlet 32 are arranged on the top cover 3. The first air outlet 21, the air outlet tongue 44 and the second air inlet 32 are coaxially arranged. The first air inlet 22, the air inlet tongue 43 and the second air outlet 31 are coaxially arranged.

[0026] Specifically, for an efficient diaphragm air pump of the present utility model, the pump body valve seat 1 serves as the basic support structure of the entire air pump, and a sealed mounting seat 2 is configured on the top. The sealed mounting seat 2 not only ensures the stable installation of the internal components of the air pump but also enhances the airtight performance of the air pump, thereby improving the pumping efficiency. Above the sealed mounting seat 2, a top cover 3 is installed, and the two are tightly connected through a precise assembly process, further strengthening the sealing effect of the air pump. Between the two, an air inlet and outlet valve plate 4 is embedded. The air inlet hole 41 and the air outlet hole 42 are arranged side by side on the air inlet and outlet valve plate 4, and these two channels are responsible for the inhalation and discharge of gas respectively, realizing the basic function of the air pump.

[0027] To optimize the gas flow path and enhance the control effect of the valve, an air inlet tongue piece 43 is arranged inside the air inlet hole 41, and an air outlet tongue piece 44 is equipped inside the air outlet hole 42. The air inlet tongue piece 43 and the air outlet tongue piece 44 regulate the gas flow through opening and closing actions, effectively avoiding gas backflow or leakage, thereby significantly improving the working efficiency and service life of the air pump.

[0028] On the sealed mounting seat 2, a first air outlet 21 and a first air inlet 22 are designed. The first air outlet 21 and the first air inlet 22 are respectively connected to external pipelines, constituting the main channels for gas to enter and exit the air pump. On the top cover 3, a second air outlet 31 and a second air inlet 32 are correspondingly arranged, which not only facilitates the guidance and distribution of gas but also enhances the flexibility and maintainability of the air pump structure.

[0029] Particularly worth mentioning is that the first air outlet 21, the air outlet tongue piece 44, and the second air inlet 32 are coaxially arranged, forming an efficient gas discharge channel to ensure the smooth and efficient pumping of the pumped gas. Similarly, the first air inlet 22, the air inlet tongue piece 43, and the second air outlet 31 are coaxially arranged, constructing a stable gas inhalation path, effectively improving the gas inhalation efficiency and stability.

[0030] This efficient diaphragm air pump realizes the efficient and stable pumping of gas through its delicate structural design and component configuration, and is widely used in various occasions requiring gas transmission and control, demonstrating excellent performance and broad application prospects.

[0031] Combined Figure 3 、 Figure 4 、 Figure 5 and Figure 6 as shown, the air inlet tongue piece 43 and the air outlet tongue piece 44 have the same shape and opposite setting directions.

[0032] Furthermore, the intake tongue piece 43 is disposed inside the intake hole 41, and the front surface of the intake tongue piece 43 is flush with the upper edge of the intake hole 41. The outlet tongue piece 44 is disposed inside the outlet hole 42, and the back surface of the outlet tongue piece 44 is flush with the edge of the outlet hole 42. The intake tongue piece 43 and the outlet tongue piece 44 exhibit a high degree of symmetry and complementarity in design. Their shapes are not only exactly the same, but also the directions during installation are opposite to each other. This design ensures the smooth flow and effective management of the air flow in the system. Specifically, the intake tongue piece 43 is used to guide the external gas into the device, while the outlet tongue piece 44 is responsible for discharging the internally processed gas.

[0033] Combined with Figure 3 、 Figure 4 、 Figure 5 and Figure 6 as shown, the sealing edge of the intake tongue piece 43 is in mating connection with the sealing surface of the second intake port 32, and the sealing edge of the outlet tongue piece 44 is in mating connection with the sealing surface of the first outlet port 21.

[0034] Furthermore, the sealing edge of the intake tongue piece 43 is designed to be in close mating connection with the sealing surface of the second intake port 32. This not only requires extremely high machining precision, but also requires the selection of wear-resistant and corrosion-resistant materials to ensure that during long-term use, the sealing effect will not be reduced due to wear. When the gas is inhaled, the intake tongue piece 43 will closely adhere to the sealing surface of the second intake port 32 under the action of air pressure, effectively preventing gas leakage and improving the pumping efficiency.

[0035] Similarly, the sealing edge of the outlet tongue piece 44 is also in mating connection with the sealing surface of the first outlet port 21. This ensures that during the gas discharge process, the gas can flow smoothly along the guidance of the outlet tongue piece 44 without reducing the pumping pressure due to leakage. In addition, the sealing performance of the outlet tongue piece 44 is directly related to the purity and stability of the gas output by the air pump, which is particularly important for application scenarios requiring high-precision gas control.

[0036] Combined with Figure 3 、 Figure 4 、 Figure 5 and Figure 6 as shown, the intake tongue piece 43 and the outlet tongue piece 44 are of disc structure. The diameter of the intake tongue piece 43 is larger than the inner diameter of the second intake port 32, and the diameter of the outlet tongue piece 44 is larger than the inner diameter of the first outlet port 21.

[0037] Furthermore, the diameter of the intake tongue piece 43 is designed to be larger than the inner diameter of the second intake port 32. This ensures that the intake tongue piece 43 can closely fit on the edge of the second intake port 32, forming an effective sealing interface. When external gas enters the device through the intake tongue piece 43, this tight seal can prevent gas leakage and improve the overall efficiency of the system. At the same time, the larger diameter of the intake tongue piece 43 also provides it with sufficient strength and stiffness to withstand the pressure and impact generated during gas flow.

[0038] Similarly, the diameter of the outlet tongue piece 44 is also designed to be larger than the inner diameter of the first outlet port 21. This enables the outlet tongue piece 44 to closely cover the edge of the first outlet port 21, ensuring that the internally processed gas can be smoothly discharged without leakage. In addition, the larger diameter of the outlet tongue piece 44 also provides it with a good guiding effect, allowing the gas to flow along a predetermined path and avoiding the generation of vortices and turbulence, thereby further improving the stability and efficiency of the system.

[0039] Combined Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, a diaphragm 5 is also provided on the pump body valve seat 1, and a pressure relief hole 6 is provided on the diaphragm 5.

[0040] Combined Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the diaphragm 5 has an umbrella-like structure, and a groove 9 matching the top end of the diaphragm 5 is provided at the bottom of the sealing mounting seat 2.

[0041] Specifically, a diaphragm 5 is also provided on the pump body valve seat 1, further improving the performance and reliability of the air pump. The diaphragm 5 is designed in an umbrella-like structure. This not only enhances the strength and stiffness of the diaphragm 5 but also enables it to distribute stress more evenly when subjected to gas pressure, avoiding damage caused by excessive local stress. In addition, the umbrella-like diaphragm 5 can also form a certain buffering effect during gas flow, helping to stabilize the gas flow rate and pressure, and further improving the output performance of the air pump.

[0042] On the diaphragm 5, a pressure relief hole 6 is also provided. When the internal pressure of the air pump rises abnormally, the pressure relief hole 6 can timely release the excess pressure, preventing equipment damage or safety accidents caused by excessive pressure. At the same time, the pressure relief hole 6 can also play a certain regulating role during gas flow, making the gas flow more stable and continuous, and further improving the working efficiency and stability of the air pump.

[0043] To ensure the stable and reliable operation of the diaphragm 5, a groove 9 matching the top end of the diaphragm 5 is provided at the bottom of the sealing mounting seat 2. This not only ensures the precise positioning of the diaphragm 5 during installation but also enhances the sealing performance of the air pump through its tight fit with the groove 9. When the diaphragm 5 is under the action of gas pressure, the top end of the diaphragm 5 will closely adhere to the inside of the groove 9, effectively preventing gas leakage and improving the pumping efficiency and purity.

[0044] Combined Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a servo motor 7 is installed on the pump body valve seat 1, and the output end of the servo motor 7 is connected to a connecting rod 8, and the top end of the connecting rod 8 is connected to the diaphragm 5.

[0045] Specifically, a servo motor 7 is installed on the pump body valve seat 1, further improving the automation level and control accuracy of the air pump. The servo motor 7, as a key component in modern automation control systems, plays a crucial role in the air pump with its high-precision and high-response-speed characteristics. Through precise rotational motion, it converts electrical energy into mechanical energy, providing a stable and controllable power source for the air pump.

[0046] On the pump body valve seat 1, the output end of the servo motor 7 is closely connected to the connecting rod 8. The connecting rod 8, as a bridge between the servo motor 7 and the diaphragm 5, is also crucial in design. One end of the connecting rod 8 is connected to the output end of the servo motor 7, and the other end is in contact with the top end of the diaphragm 5. When the servo motor 7 starts, it drives the diaphragm 5 to perform periodic up and down movements through the connecting rod 8. This not only realizes the inhalation and discharge of gas but also precisely controls the gas flow and pressure by changing the movement frequency and amplitude of the diaphragm 5.

[0047] To ensure the tight fit and stable transmission between the two, the top end of the connecting rod 8 is designed to match the shape of the diaphragm 5 and is fixed to the diaphragm 5 through special connection methods (such as bolt connection, pin connection, etc.). This not only enhances the connection strength between the connecting rod 8 and the diaphragm 5 but also ensures the synchronism and stability of the two during movement.

[0048] In addition, the introduction of the servo motor 7 also brings higher automation level and control accuracy to the air pump. By programming and controlling parameters such as the rotation speed, rotation direction, and rotation angle of the servo motor 7, precise control of the air pump's output gas flow, pressure, and direction can be achieved. This not only improves the working efficiency and stability of the air pump but also provides strong support for various application scenarios requiring high-precision gas control.

[0049] Combined Figure 1 、 Figure 2 、Figure 3 and Figure 4 As shown in Figure 4 , the intake and exhaust valve sheet 4 is made of integrally formed silicone material.

[0050] Specifically, the selection of the material and manufacturing process of the intake and exhaust valve sheet 4 has a crucial impact on the performance and reliability of the air pump. Here, the intake and exhaust valve sheet 4 is designed to be made of integrally formed silicone material, which not only reflects the engineer's profound understanding of material science but also demonstrates the high integration and optimization of the air pump in terms of structure and function.

[0051] In addition, as a high-performance elastic material, silicone is known for its excellent high and low temperature resistance, good chemical stability, outstanding elastic recovery ability, and excellent sealing performance. Selecting silicone as the material of the intake and exhaust valve sheet 4 not only ensures the stable performance of the valve sheet under extreme working conditions but also, through its good elasticity, enables the flexible opening and closing of the intake and exhaust valve sheet 4 during the gas flow process, effectively preventing gas leakage and improving the pumping efficiency and purity.

[0052] The integrally formed manufacturing process further improves the structural strength and sealing performance of the intake and exhaust valve sheet 4. Through advanced mold design and forming technology, key components such as the intake hole 41, the exhaust hole 42, the intake tongue 43, and the exhaust tongue 44 are perfectly integrated together to form a structurally compact and fully functional whole. This not only simplifies the assembly process of the intake and exhaust valve sheet 4, reduces production costs, but also further improves the sealing performance and service life of the intake and exhaust valve sheet 4 by reducing the connection gaps between components.

[0053] In addition, the silicone material also endows the intake and exhaust valve sheet 4 with good wear and corrosion resistance. During long-term use, even when facing media containing tiny particles or corrosive gases, the intake and exhaust valve sheet 4 can maintain its good sealing performance and service life without frequent replacement or maintenance, greatly reducing the operating cost of the air pump.

[0054] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. An efficient diaphragm air pump, comprising a pump body valve seat (1), a sealing mounting seat (2) is arranged at the top of the pump body valve seat (1), a top cover (3) is arranged on the sealing mounting seat (2), and an air inlet and outlet valve plate (4) is arranged between the sealing mounting seat (2) and the top cover (3), characterized in that, The air inlet and outlet valve plate (4) is provided with an air inlet hole (41) and an air outlet hole (42) arranged side by side. An air inlet tongue piece (43) is arranged inside the air inlet hole (41), and an air outlet tongue piece (44) is arranged inside the air outlet hole (42). The sealed mounting seat (2) is provided with a first air outlet (21) and a first air inlet (22), and the top cover (3) is provided with a second air outlet (31) and a second air inlet (32). The first air outlet (21), the air outlet tongue piece (44), and the second air inlet (32) are coaxially arranged, and the first air inlet (22), the air inlet tongue piece (43), and the second air outlet (31) are coaxially arranged.

2. The high-efficiency diaphragm air pump according to claim 1, characterized in that The air inlet tongue piece (43) and the air outlet tongue piece (44) have the same shape and opposite setting directions.

3. An efficient diaphragm air pump according to claim 2, wherein, The sealing edge of the air inlet tongue piece (43) fits with the sealing surface of the second air inlet (32), and the sealing edge of the air outlet tongue piece (44) fits with the sealing surface of the first air outlet (21).

4. An efficient diaphragm air pump according to claim 2, wherein, The air inlet tongue piece (43) and the air outlet tongue piece (44) are of a disc structure. The diameter of the air inlet tongue piece (43) is larger than the inner diameter of the second air inlet (32), and the diameter of the air outlet tongue piece (44) is larger than the inner diameter of the first air outlet (21).

5. An efficient diaphragm air pump according to any one of claims 1-4, characterized in that, The pump body valve seat (1) is further provided with a diaphragm (5), and the diaphragm (5) is provided with a pressure relief small hole (6).

6. The efficient diaphragm air pump according to claim 5, wherein The diaphragm (5) is of an umbrella-like structure, and the bottom of the sealed mounting seat (2) is provided with a groove (9) matching the top end of the diaphragm (5).

7. An efficient diaphragm air pump according to claim 6, characterized in that, A servo motor (7) is installed on the pump body valve seat (1). The output end of the servo motor (7) is connected with a connecting rod (8), and the top end of the connecting rod (8) is connected with the diaphragm (5).

8. An efficient diaphragm air pump according to claim 7, characterized in that, The air inlet and outlet valve plate (4) is made of integrally formed silica gel material.

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