A double liquid peristaltic diaphragm pump

Abstract

The application relates to the field of fluid delivery, in particular to a double-extractable peristaltic diaphragm pump, which comprises a main pump body, the side wall of the main pump body is provided with a first input pipe and a first output pipe, the top is provided with a second input pipe and a second output pipe, the main pump body has a first chamber and a second chamber; the first chamber is provided with a peristaltic conveying assembly, which comprises a hose and a conveying component; the second chamber is provided with a diaphragm conveying assembly comprising a diaphragm support; the conveying component in the peristaltic conveying assembly and an eccentric extrusion component in the diaphragm conveying assembly are driven by a rotating shaft in a driving assembly; the application realizes the extraction of different media by two pumps under the driving of a single power source, and optimizes the structural layout.

Description

Technical Field

[0001] This application relates to the field of fluid transport, and in particular to a peristaltic diaphragm pump capable of pumping two liquids. Background Technology

[0002] With the continuous development of industrial production and the increase in diversified demands, the demand for pump equipment capable of efficiently and stably conveying different types of media is also growing. In the field of cleaning equipment, stable and efficient media transfer pumps are needed to transport cleaning liquids and water, which places higher demands on pump equipment.

[0003] In existing technologies, peristaltic pumps are commonly used for media delivery. The problem of hose material can be solved to handle the delivery of most solutions. In addition, diaphragm pumps have good sealing performance and can deliver media through the reciprocating motion of the diaphragm.

[0004] However, while peristaltic pumps are compatible with various solutions, their material and manufacturing costs are high, and they are difficult to scale up. Traditional diaphragm pumps, on the other hand, often only allow for single-liquid transport and cannot simultaneously meet the needs of transporting multiple media. Furthermore, when using diaphragm pumps and peristaltic pumps to pump water and solutions respectively, multiple drive sources are required, increasing the complexity and cost of the equipment and making them unsuitable for complex production or operational processes that require the simultaneous transport of two different media and necessitate a simplified equipment structure. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides a dual-liquid peristaltic diaphragm pump that can achieve two pumps to extract different media under the drive of a single power source, and optimizes the structural layout.

[0006] This application is achieved through the following technical solution: A dual-liquid peristaltic diaphragm pump, comprising: The main pump body has a first input pipe and a first output pipe on its side wall, and a second input pipe and a second output pipe on its top; the main pump body has a first chamber and a second chamber opened along the axial direction. A peristaltic conveying assembly located in a first chamber, the peristaltic conveying assembly including a hose and a conveying component for conveying a medium, the two ends of the hose being connected to a first input pipe and a first output pipe respectively, and the hose abutting against the conveying component; A diaphragm conveying assembly is located in a second chamber. The diaphragm conveying assembly includes a diaphragm support that axially divides the second chamber into a medium chamber and a diaphragm chamber. The medium chamber is connected to a second input pipe and a second output pipe. Diaphragms are evenly distributed below the diaphragm support, and a diaphragm cavity is formed in the middle of each diaphragm. The diaphragms are located in the diaphragm chambers and are extruded by an eccentric extrusion assembly to convey the medium. A drive assembly, the drive assembly including a drive element and a shaft for driving the conveying assembly and the eccentric extrusion assembly.

[0007] By adopting the above technical solution, the main pump body axially integrates the first and second chambers, combining the peristaltic delivery assembly and the diaphragm delivery assembly into the same pump body. This reduces the space occupied while achieving the delivery of two different media. The delivery component of the peristaltic delivery assembly, in conjunction with the hose, can deliver one medium by squeezing the hose. The diaphragm support of the diaphragm delivery assembly axially divides the second chamber into a medium chamber and a diaphragm chamber. The eccentric squeezing component, by squeezing the diaphragm, in conjunction with the second input pipe and the second output pipe, can achieve the delivery of another medium. In addition, the two ends of the hose in the peristaltic delivery assembly are connected to the first input pipe and the first output pipe, respectively, and the medium chamber in the diaphragm delivery assembly is connected to the second input pipe and the second output pipe. This ensures that different media have independent input and output pipelines, achieving physical isolation delivery of the two media, avoiding cross-contamination, and meeting the functional requirements of separate extraction of two liquids. The rotating shaft in the drive assembly can simultaneously drive the delivery component and the eccentric squeezing component, realizing the driving of two pump bodies by a single drive source, simplifying the overall structure, and reducing cost and energy consumption.

[0008] Optionally, the delivery assembly includes extrusion columns evenly distributed in the first chamber for extruding the medium in the push hose; a drive gear and a support disk for providing support for the extrusion columns are sleeved on the rotating shaft, and a driven gear that meshes with the drive gear is provided between the extrusion columns and the support disk.

[0009] By adopting the above technical solution, in the pumpable dual-liquid peristaltic diaphragm pump, the conveying component uses extrusion columns evenly distributed in the first chamber to extrude and push the medium in the hose. With the help of the drive gear, support disc, and driven gear meshing with the drive gear on the rotating shaft, the medium in the hose can be effectively transported, allowing the medium to flow smoothly in the pump and improving the pump's conveying efficiency.

[0010] Optionally, a valve support is provided on the diaphragm support, and an output chamber and an input chamber are formed sequentially from the inside to the outside between the valve support and the top cover of the main pump body. The input chamber is provided with a one-way input valve for controlling the medium entering the diaphragm chamber; the output chamber is provided with a one-way output valve for controlling the medium entering the output chamber from the diaphragm chamber; the valve support is provided with an input hole and an output hole, the input hole being adapted to the one-way input valve, and the output hole being adapted to the one-way output valve.

[0011] By adopting the above technical solution, the valve bracket provides stable support for the one-way input valve and the one-way output valve. The output chamber and input chamber formed sequentially from the inside to the outside between the valve bracket and the top cover of the main pump body, together with the one-way input valve and the one-way output valve and the corresponding input port and output port, can control the one-way flow of the medium, so that the medium can enter the membrane cavity in an orderly manner and enter the output cavity from the membrane cavity, ensuring the normal liquid delivery function of the diaphragm delivery assembly.

[0012] Optionally, the one-way output valve is provided with a clamping block, which is used to ensure that when a medium is output from a single output orifice, the one-way output valve can clamp the remaining output orifices.

[0013] By adopting the above technical solution, the clamping block on the one-way output valve can ensure that when the medium is output from a single output hole, the one-way output valve can clamp the remaining output holes, thereby improving the pump's sealing performance and the stability of the output medium.

[0014] Optionally, the one-way input valve is a small umbrella valve, and the one-way output valve is a large umbrella valve.

[0015] By adopting the above technical solution, the one-way input valve uses a small umbrella valve and the one-way output valve uses a large umbrella valve, which can more effectively control the medium entering and exiting the diaphragm cavity, realize the one-way flow of the medium, and ensure the normal operation of the pump.

[0016] Optionally, a sealing gasket is provided on the valve bracket.

[0017] By adopting the above technical solution, the sealing gasket on the valve support can improve the sealing performance of the medium cavity, reduce the risk of medium leakage from gaps under pressure, and ensure the pump's delivery efficiency and stability.

[0018] Optionally, the eccentric extrusion assembly includes a crank connected to a rotating shaft, the crank having an eccentric shaft, the top of which is rotatably connected to an eccentric extrusion disc that extrudes protrusions through reciprocating motion.

[0019] By adopting the above technical solution, in the pumpable dual-liquid peristaltic diaphragm pump, the eccentric shaft and crank cooperate to enable the eccentric extrusion disc to reciprocate, extruding the protrusions and thus changing the volume of the membrane cavity, thereby realizing the transport of the medium by the diaphragm transport assembly.

[0020] Optionally, the eccentric extrusion disc has symmetrically arranged extrusion holes adapted to the diaphragm; the diaphragm has extrusion protrusions that cooperate with the extrusion holes to change the volume of the diaphragm cavity, and a limiting protrusion is provided below the extrusion protrusions to restrict the vertical displacement of the eccentric extrusion disc.

[0021] By adopting the above technical solution, the symmetrically arranged extrusion holes on the eccentric extrusion disc cooperate with the extrusion protrusions on the diaphragm to change the diaphragm cavity volume and realize the media conveying function of the diaphragm conveying assembly; the limiting protrusion below the extrusion protrusion can restrict the vertical displacement of the eccentric extrusion disc, so that the limiting protrusion can abut against the eccentric extrusion disc, so that the eccentric extrusion disc can pull down the diaphragm, and the diaphragm has enough restoring force to restore its original shape.

[0022] Optionally, the diaphragm holder is provided with a limiting groove for restricting the rotation space of the eccentric extrusion disc.

[0023] By adopting the above technical solution, the diaphragm support is provided with a limiting groove to restrict the rotation space of the eccentric extrusion disc, which can ensure that the eccentric extrusion disc rotates within the specified space, so that the membrane cavity is stably extruded, ensuring the stable operation of the diaphragm delivery assembly and improving the overall performance and reliability of the dual-liquid peristaltic diaphragm pump.

[0024] Optionally, a pagoda connector is provided at the port of the second input tube and the second output tube.

[0025] By adopting the above technical solution, a pagoda connector is installed at the opening of the second input pipe and the second output pipe, which can make the connection more stable, prevent the pipeline from falling off, and ensure the sealing and stability of the medium transportation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. This application reduces the number of drive sources, simplifies the equipment structure, and lowers the complexity and cost of the equipment by using the same drive component to drive the conveying component and the eccentric extrusion component; 2. This application combines a peristaltic conveying assembly and a diaphragm conveying assembly, which can simultaneously convey two different media, meeting the needs of simultaneously conveying different media in complex production or operation processes; 3. In this application, the two ends of the flexible tube in the peristaltic conveying assembly are connected to the first input tube and the first output tube respectively, and the medium chamber in the diaphragm conveying assembly is connected to the second input tube and the second output tube, which ensures that different media have independent input and output pipelines, realizes the physical isolation of the two media, avoids cross-contamination, and meets the functional requirements of separate extraction of two different media. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a dual-liquid peristaltic diaphragm pump described in the embodiment; Figure 2 This is a cross-sectional view of a peristaltic diaphragm pump capable of pumping two liquids as described in the embodiment; Figure 3 This is a cross-sectional view of the diaphragm delivery assembly described in the embodiment; Figure 4 This is a cross-sectional view of the peristaltic conveying assembly described in the embodiment; Figure 5 This is a top view of the sealing gasket described in the embodiment.

[0028] In the diagram: 1. Main pump body; 11. First input pipe; 12. First output pipe; 13. Second input pipe; 14. Second output pipe; 15. First chamber; 16. Second chamber; 17. Medium chamber; 18. Diaphragm chamber; 2. Peristaltic conveying assembly; 21. Hoses; 22. Conveying component; 221. Extrusion column; 222. Drive gear; 223. Support plate; 224. Driven gear; 3. Diaphragm conveying assembly; 31. Diaphragm support; 32. Diaphragm; 321. Extrusion protrusion; 322. Limiting protrusion; 323. Membrane cavity; 33. Eccentric extrusion assembly; 331. Eccentric shaft; 332. Crank; 333. Eccentric extrusion disc; 334. Extrusion hole; 34. Limiting groove; 4. Drive assembly; 41. Drive component; 42. Rotating shaft; 5. Valve bracket; 51. Input chamber; 52. Output chamber; 53. One-way input valve; 54. One-way output valve; 541. Soft diaphragm; 55. Input hole; 56. Output hole; 57. Clamping block; 6. Sealing gasket; 7. Pagoda connector. Detailed Implementation

[0029] The technical solutions of various embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Reference Figures 1-2 This application discloses a dual-liquid peristaltic diaphragm pump, comprising: The main pump body 1 has a first input pipe 11 and a first output pipe 12 on its side wall, and a second input pipe 13 and a second output pipe 14 on its top; the main pump body 1 has a first chamber 15 and a second chamber 16 opened along the axial direction. The peristaltic conveying assembly 2 is located in the first chamber 15. The peristaltic conveying assembly 2 includes a hose 21 and a conveying component 22 for conveying the medium. The two ends of the hose 21 are connected to the first input pipe 11 and the first output pipe 12 respectively, and the hose 21 abuts against the conveying component 22. The diaphragm conveying assembly 3 is located in the second chamber 16. The diaphragm conveying assembly 3 includes a diaphragm support 31, which axially divides the second chamber 16 into a medium chamber 17 and a diaphragm chamber 18. The medium chamber 17 is connected to the second input pipe 13 and the second output pipe 14. Diaphragms 32 are evenly distributed below the diaphragm support 31, and a diaphragm cavity 323 is formed in the middle of the diaphragm 32. The diaphragms 32 are located in the diaphragm cavity 18, and the diaphragms 32 are squeezed by the eccentric extrusion assembly 33 to convey the medium. The drive assembly 4 includes a drive element 41 and a rotating shaft 42 for driving the conveying assembly 22 and the eccentric extrusion assembly 33.

[0031] Specifically, refer to Figures 1-2 The main pump body 1 has a first input pipe 11 and a first output pipe 12 on its side wall, and a second input pipe 13 and a second output pipe 14 on its top. The main pump body 1 has a first chamber 15 and a second chamber 16 axially. The main pump body 1 is generally made of metal or high-strength plastic, possessing good strength and corrosion resistance to ensure the pump's service life. The first input pipe 11, the first output pipe 12, the second input pipe 13, and the second output pipe 14 can be circular pipes, or designed as square pipes or other shapes according to actual needs. Their connection to the main pump body 1 can be welding, threaded connection, etc. The first chamber 15 and the second chamber 16 provide independent working spaces for the peristaltic conveying assembly 2 and the diaphragm conveying assembly 3, avoiding mutual interference during the conveying of the two media. The second input pipe 13 and the second output pipe 14 can convey both liquids and gases.

[0032] Reference Figures 1-3The peristaltic conveying assembly 2 is located in the first chamber 15. The peristaltic conveying assembly 2 includes a hose 21 and a conveying component 22 for conveying the medium. The two ends of the hose 21 are connected to the first input pipe 11 and the first output pipe 12, respectively, and the hose 21 abuts against the conveying component 22. The conveying component 22 can convey liquid. The conveying component 22 includes extrusion columns 221 evenly distributed in the first chamber 15 for squeezing and pushing the medium in the hose 21. The drive component 4 includes a drive member 41 and a rotating shaft 42 for driving the conveying component 22 and the eccentric extrusion component 33. The rotating shaft 42 transmits power to the conveying component 22 and the eccentric extrusion component 33, realizing the function of driving two pumps simultaneously with one drive source. The rotating shaft 42 is fitted with a drive gear 222 and a support plate 223 for supporting the extrusion column 221. A driven gear 224 that meshes with the drive gear 222 is provided between the extrusion column 221 and the support plate 223. The hose 21 can be made of a material with good elasticity, so that it can return to its original shape when squeezed by the conveying component 22, ensuring continuous delivery of the medium. The squeezing column 221 can be cylindrical or prismatic, and its surface can be smoothed to reduce friction with the hose 21. The driving component 41 can be a motor, with the driving gear 222 and the driven gear 224 cooperating to transmit the power of the driving component 41 to the squeezing column 221, realizing the rotation of the squeezing column 221, thereby continuously squeezing the hose 21 and realizing the delivery of the medium. The support plate 223 provides stable support for the squeezing column 221, ensuring the normal operation of the conveying component 22.

[0033] Reference Figure 2 and Figure 4The diaphragm conveying assembly 3 is located in the second chamber 16. The diaphragm conveying assembly 3 includes a diaphragm support 31, which divides the second chamber 16 axially into a medium chamber 17 and a diaphragm chamber 18. The medium chamber 17 is connected to the second input pipe 13 and the second output pipe 14. The pipe openings of the second input pipe 13 and the second output pipe 14 may be provided with pagoda connectors 7 to ensure the sealing and stability of the medium conveying. Diaphragms 32 are evenly distributed below the diaphragm support 31. The diaphragms 32 are located in the diaphragm chamber 18 and are squeezed by the eccentric extrusion assembly 33 to convey the medium. A valve support 5 is mounted on the diaphragm support 31. Between the valve support 5 and the top cover of the main pump body 1, an output chamber 52 and an input chamber 51 are formed sequentially from the inside out. The input chamber 51 contains a one-way input valve 53 for controlling the entry of the medium into the diaphragm chamber 323. The output chamber 52 contains a one-way output valve 54 for controlling the entry of the medium from the diaphragm chamber 323 into the output chamber 52. The valve support 5 has an input port 55 and an output port 56. The input port 55 is adapted to the one-way input valve 53, and the output port 56 is adapted to the one-way output valve 54. Through the cooperation of the one-way input valve 53 and the one-way output valve 54, unidirectional flow of the medium is achieved, ensuring the normal operation of the diaphragm conveying. The one-way input valve 53 is a small umbrella valve, and the one-way output valve 54 is a large umbrella valve. The eccentric extrusion assembly 33 includes a crank 332 connected to a rotating shaft 42. An eccentric shaft 331 is mounted on the crank 332. An eccentric extrusion disk 333, which reciprocates to extrude protrusions 321, is rotatably connected to the top of the eccentric shaft 331. The eccentric extrusion disk 333 has symmetrically arranged extrusion holes 334 adapted to the diaphragm 32. The diaphragm 32 has extrusion protrusions 321 that cooperate with the extrusion holes 334 to change the volume of the diaphragm cavity 323. Below the extrusion protrusions 321 is a limiting protrusion 322 that restricts the vertical displacement of the eccentric extrusion disk 333. The diaphragm support 31 has a limiting groove 34 for restricting the rotation space of the eccentric extrusion disk 333. The limiting groove 34 allows the eccentric extrusion disk 333 to rotate within the limiting groove 34, enabling the eccentric extrusion disk 333 to stably control the pressure within the diaphragm cavity 323. The limiting groove 34 can have an arc-shaped structure. Specifically, crank 332 converts the circular motion of shaft 42 into the reciprocating motion of eccentric extrusion disc 333, causing the extrusion holes 334 on eccentric extrusion disc 333 to extrude the extrusion protrusions 321, thus reducing the volume of diaphragm cavity 323 and increasing the internal pressure. The medium in diaphragm cavity 323 flows out through one-way output valve 54. During the downward movement of eccentric extrusion disc 333, limiting protrusions 322 press against it, allowing eccentric extrusion disc 333 to pull the diaphragm 32 downward, increasing the volume of diaphragm cavity 323 and decreasing the internal pressure, allowing the medium to enter diaphragm cavity 323 through one-way input valve 53. Diaphragm 32 is typically made of a flexible material such as rubber, allowing it to deform under the action of eccentric extrusion assembly 33, thereby changing the volume of diaphragm cavity 323 and facilitating the intake and discharge of the medium.The diaphragm support 31 serves to fix the diaphragm 32 and separate the chambers. Its connection to the main pump body 1 can be by bolts or other means.

[0034] Reference Figures 4-5 The one-way output valve 54 includes a diaphragm 541 corresponding to the output port 56, and a clamping block 57 is provided on the one-way output valve 54. When the medium pushes open the diaphragm 541 and flows out from the diaphragm cavity 323, the clamping block 57 can clamp the diaphragm 541 without output medium, so that the diaphragm 541 without medium passing through can clamp the output port 56 without medium flowing out, ensuring the normal flow of medium. A sealing gasket 6 is provided on the valve support 5; the setting of the sealing gasket 6 reduces the risk of medium leakage from the gap under pressure, ensuring the pump's delivery efficiency and stability.

[0035] The implementation principle of this embodiment is as follows: This dual-liquid peristaltic diaphragm pump integrates peristaltic delivery and diaphragm delivery into a single main pump body 1. A drive assembly 4 simultaneously drives both the peristaltic delivery assembly 2 and the diaphragm delivery assembly 3. The peristaltic delivery assembly 2 uses the delivery component 22 to squeeze the flexible tube 21 to deliver one medium; the diaphragm delivery assembly 3 uses the eccentric extrusion component 33 to extrude the protrusion 321 to deliver another medium.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this application.

Claims

1. A smokeable double liquid peristaltic membrane pump characterized by, include: The main pump body (1) has a first input pipe (11) and a first output pipe (12) on its side wall, and a second input pipe (13) and a second output pipe (14) on its top; the main pump body (1) has a first chamber (15) and a second chamber (16) axially. The peristaltic conveying assembly (2) is located in the first chamber (15). The peristaltic conveying assembly (2) includes a hose (21) and a conveying component (22) for conveying the medium. The two ends of the hose (21) are connected to the first input pipe (11) and the first output pipe (12) respectively, and the hose (21) abuts against the conveying component (22). A diaphragm delivery assembly (3) is located in a second chamber (16). The diaphragm delivery assembly (3) includes a diaphragm support (31), which axially divides the second chamber (16) into a medium chamber (17) and a diaphragm chamber (18). The medium chamber (17) is connected to a second input pipe (13) and a second output pipe (14). Diaphragms (32) are evenly distributed below the diaphragm support (31), and a membrane cavity (323) is formed in the middle of the diaphragm (32). The diaphragms (32) are located in the diaphragm chamber (18), and the diaphragms (32) are extruded by an eccentric extrusion assembly (33) to deliver the medium. The drive assembly (4) includes a drive element (41) and a shaft (42) for driving the conveying assembly (22) and the eccentric extrusion assembly (33).

2. A pump according to claim 1, wherein, The conveying assembly (22) includes extrusion columns (221) evenly distributed in the first chamber (15) for extruding the medium in the push hose (21); the rotating shaft (42) is fitted with a drive gear (222) and a support disk (223) for providing support for the extrusion columns (221), and a driven gear (224) meshing with the drive gear (222) is provided between the extrusion columns (221) and the support disk (223).

3. A pump according to claim 1, wherein, The diaphragm support (31) is provided with a valve support (5). The valve support (5) and the top cover of the main pump body (1) form an output chamber (52) and an input chamber (51) from the inside to the outside. The input chamber (51) is provided with a one-way input valve (53) for controlling the medium to enter the diaphragm chamber (323). The output chamber (52) is provided with a one-way output valve (54) for controlling the medium to enter the output chamber (52) from the diaphragm chamber (323). The valve support (5) is provided with an input hole (55) and an output hole (56). The input hole (55) is adapted to the one-way input valve (53), and the output hole (56) is adapted to the one-way output valve (54).

4. A pump according to claim 3, wherein the pump is a double liquid peristaltic membrane pump. The one-way output valve (54) is provided with a clamping block (57), which is used to ensure that when a medium is output from a single output hole (56), the one-way output valve (54) can clamp the remaining output holes (56).

5. A pump according to claim 3, wherein, The one-way input valve (53) is a small umbrella valve, and the one-way output valve (54) is a large umbrella valve.

6. A pump according to claim 3, wherein, The valve support (5) is provided with a sealing gasket (6).

7. A smokeable double liquid peristaltic membrane pump according to claim 1, wherein, The eccentric extrusion assembly (33) includes a crank (332) connected to a rotating shaft (42), an eccentric shaft (331) is provided on the crank (332), and an eccentric extrusion disc (333) that extrudes a protrusion (321) by reciprocating motion is rotatably connected to the top of the eccentric shaft (331).

8. A dual-liquid peristaltic diaphragm pump according to claim 7, characterized in that, The eccentric extrusion disc (333) is symmetrically arranged with extrusion holes (334) that are adapted to the diaphragm (32); the diaphragm (32) is provided with extrusion protrusions (321) that cooperate with the extrusion holes (334) to change the volume of the diaphragm cavity (323); and a limiting protrusion (322) is provided below the extrusion protrusions (321) to limit the vertical displacement of the eccentric extrusion disc (333).

9. A smokeable double liquid peristaltic membrane pump according to claim 7, wherein, The diaphragm support (31) is provided with a limiting groove (34) for limiting the rotation space of the eccentric extrusion disc (333).

10. A smokeable double liquid peristaltic membrane pump according to claim 1, wherein, The second input tube (13) and the second output tube (14) are provided with pagoda connectors (7).

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